Attachments: start using fineuploader.com to upload attachments to messages.
[citadel.git] / webcit / static / fineuploader.js
diff --git a/webcit/static/fineuploader.js b/webcit/static/fineuploader.js
new file mode 100755 (executable)
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@@ -0,0 +1,8540 @@
+/*!
+* Fine Uploader
+*
+* Copyright 2013, Widen Enterprises, Inc. info@fineuploader.com
+*
+* Version: 4.2.1
+*
+* Homepage: http://fineuploader.com
+*
+* Repository: git://github.com/Widen/fine-uploader.git
+*
+* Licensed under GNU GPL v3, see LICENSE
+*/ 
+
+
+/*globals window, navigator, document, FormData, File, HTMLInputElement, XMLHttpRequest, Blob, Storage, ActiveXObject */
+var qq = function(element) {
+    "use strict";
+
+    return {
+        hide: function() {
+            element.style.display = "none";
+            return this;
+        },
+
+        /** Returns the function which detaches attached event */
+        attach: function(type, fn) {
+            if (element.addEventListener){
+                element.addEventListener(type, fn, false);
+            } else if (element.attachEvent){
+                element.attachEvent("on" + type, fn);
+            }
+            return function() {
+                qq(element).detach(type, fn);
+            };
+        },
+
+        detach: function(type, fn) {
+            if (element.removeEventListener){
+                element.removeEventListener(type, fn, false);
+            } else if (element.attachEvent){
+                element.detachEvent("on" + type, fn);
+            }
+            return this;
+        },
+
+        contains: function(descendant) {
+            // The [W3C spec](http://www.w3.org/TR/domcore/#dom-node-contains)
+            // says a `null` (or ostensibly `undefined`) parameter
+            // passed into `Node.contains` should result in a false return value.
+            // IE7 throws an exception if the parameter is `undefined` though.
+            if (!descendant) {
+                return false;
+            }
+
+            // compareposition returns false in this case
+            if (element === descendant) {
+                return true;
+            }
+
+            if (element.contains){
+                return element.contains(descendant);
+            } else {
+                /*jslint bitwise: true*/
+                return !!(descendant.compareDocumentPosition(element) & 8);
+            }
+        },
+
+        /**
+         * Insert this element before elementB.
+         */
+        insertBefore: function(elementB) {
+            elementB.parentNode.insertBefore(element, elementB);
+            return this;
+        },
+
+        remove: function() {
+            element.parentNode.removeChild(element);
+            return this;
+        },
+
+        /**
+         * Sets styles for an element.
+         * Fixes opacity in IE6-8.
+         */
+        css: function(styles) {
+            /*jshint eqnull: true*/
+            if (element.style == null) {
+                throw new qq.Error("Can't apply style to node as it is not on the HTMLElement prototype chain!");
+            }
+
+            /*jshint -W116*/
+            if (styles.opacity != null){
+                if (typeof element.style.opacity !== "string" && typeof(element.filters) !== "undefined"){
+                    styles.filter = "alpha(opacity=" + Math.round(100 * styles.opacity) + ")";
+                }
+            }
+            qq.extend(element.style, styles);
+
+            return this;
+        },
+
+        hasClass: function(name) {
+            var re = new RegExp("(^| )" + name + "( |$)");
+            return re.test(element.className);
+        },
+
+        addClass: function(name) {
+            if (!qq(element).hasClass(name)){
+                element.className += " " + name;
+            }
+            return this;
+        },
+
+        removeClass: function(name) {
+            var re = new RegExp("(^| )" + name + "( |$)");
+            element.className = element.className.replace(re, " ").replace(/^\s+|\s+$/g, "");
+            return this;
+        },
+
+        getByClass: function(className) {
+            var candidates,
+                result = [];
+
+            if (element.querySelectorAll){
+                return element.querySelectorAll("." + className);
+            }
+
+            candidates = element.getElementsByTagName("*");
+
+            qq.each(candidates, function(idx, val) {
+                if (qq(val).hasClass(className)){
+                    result.push(val);
+                }
+            });
+            return result;
+        },
+
+        children: function() {
+            var children = [],
+                child = element.firstChild;
+
+            while (child){
+                if (child.nodeType === 1){
+                    children.push(child);
+                }
+                child = child.nextSibling;
+            }
+
+            return children;
+        },
+
+        setText: function(text) {
+            element.innerText = text;
+            element.textContent = text;
+            return this;
+        },
+
+        clearText: function() {
+            return qq(element).setText("");
+        },
+
+        // Returns true if the attribute exists on the element
+        // AND the value of the attribute is NOT "false" (case-insensitive)
+        hasAttribute: function(attrName) {
+            var attrVal;
+
+            if (element.hasAttribute) {
+
+                if (!element.hasAttribute(attrName)) {
+                    return false;
+                }
+
+                /*jshint -W116*/
+                return (/^false$/i).exec(element.getAttribute(attrName)) == null;
+            }
+            else {
+                attrVal = element[attrName];
+
+                if (attrVal === undefined) {
+                    return false;
+                }
+
+                /*jshint -W116*/
+                return (/^false$/i).exec(attrVal) == null;
+            }
+        }
+    };
+};
+
+(function(){
+    "use strict";
+
+    qq.log = function(message, level) {
+        if (window.console) {
+            if (!level || level === "info") {
+                window.console.log(message);
+            }
+            else
+            {
+                if (window.console[level]) {
+                    window.console[level](message);
+                }
+                else {
+                    window.console.log("<" + level + "> " + message);
+                }
+            }
+        }
+    };
+
+    qq.isObject = function(variable) {
+        return variable && !variable.nodeType && Object.prototype.toString.call(variable) === "[object Object]";
+    };
+
+    qq.isFunction = function(variable) {
+        return typeof(variable) === "function";
+    };
+
+    /**
+     * Check the type of a value.  Is it an "array"?
+     *
+     * @param value value to test.
+     * @returns true if the value is an array or associated with an `ArrayBuffer`
+     */
+    qq.isArray = function(value) {
+        return Object.prototype.toString.call(value) === "[object Array]" ||
+            (value && window.ArrayBuffer && value.buffer && value.buffer.constructor === ArrayBuffer);
+    };
+
+    // Looks for an object on a `DataTransfer` object that is associated with drop events when utilizing the Filesystem API.
+    qq.isItemList = function(maybeItemList) {
+        return Object.prototype.toString.call(maybeItemList) === "[object DataTransferItemList]";
+    };
+
+    // Looks for an object on a `NodeList` or an `HTMLCollection`|`HTMLFormElement`|`HTMLSelectElement`
+    // object that is associated with collections of Nodes.
+    qq.isNodeList = function(maybeNodeList) {
+        return Object.prototype.toString.call(maybeNodeList) === "[object NodeList]" ||
+            // If `HTMLCollection` is the actual type of the object, we must determine this
+            // by checking for expected properties/methods on the object
+            (maybeNodeList.item && maybeNodeList.namedItem);
+    };
+
+    qq.isString = function(maybeString) {
+        return Object.prototype.toString.call(maybeString) === "[object String]";
+    };
+
+    qq.trimStr = function(string) {
+        if (String.prototype.trim) {
+            return string.trim();
+        }
+
+        return string.replace(/^\s+|\s+$/g,"");
+    };
+
+
+    /**
+     * @param str String to format.
+     * @returns {string} A string, swapping argument values with the associated occurrence of {} in the passed string.
+     */
+    qq.format = function(str) {
+
+        var args =  Array.prototype.slice.call(arguments, 1),
+            newStr = str,
+            nextIdxToReplace = newStr.indexOf("{}");
+
+        qq.each(args, function(idx, val) {
+            var strBefore = newStr.substring(0, nextIdxToReplace),
+                strAfter = newStr.substring(nextIdxToReplace+2);
+
+            newStr = strBefore + val + strAfter;
+            nextIdxToReplace = newStr.indexOf("{}", nextIdxToReplace + val.length);
+
+            // End the loop if we have run out of tokens (when the arguments exceed the # of tokens)
+            if (nextIdxToReplace < 0) {
+                return false;
+            }
+        });
+
+        return newStr;
+    };
+
+    qq.isFile = function(maybeFile) {
+        return window.File && Object.prototype.toString.call(maybeFile) === "[object File]";
+    };
+
+    qq.isFileList = function(maybeFileList) {
+        return window.FileList && Object.prototype.toString.call(maybeFileList) === "[object FileList]";
+    };
+
+    qq.isFileOrInput = function(maybeFileOrInput) {
+        return qq.isFile(maybeFileOrInput) || qq.isInput(maybeFileOrInput);
+    };
+
+    qq.isInput = function(maybeInput) {
+        if (window.HTMLInputElement) {
+            if (Object.prototype.toString.call(maybeInput) === "[object HTMLInputElement]") {
+                if (maybeInput.type && maybeInput.type.toLowerCase() === "file") {
+                    return true;
+                }
+            }
+        }
+        if (maybeInput.tagName) {
+            if (maybeInput.tagName.toLowerCase() === "input") {
+                if (maybeInput.type && maybeInput.type.toLowerCase() === "file") {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    };
+
+    qq.isBlob = function(maybeBlob) {
+        return window.Blob && Object.prototype.toString.call(maybeBlob) === "[object Blob]";
+    };
+
+    qq.isXhrUploadSupported = function() {
+        var input = document.createElement("input");
+        input.type = "file";
+
+        return (
+            input.multiple !== undefined &&
+                typeof File !== "undefined" &&
+                typeof FormData !== "undefined" &&
+                typeof (qq.createXhrInstance()).upload !== "undefined" );
+    };
+
+    // Fall back to ActiveX is native XHR is disabled (possible in any version of IE).
+    qq.createXhrInstance = function() {
+        if (window.XMLHttpRequest) {
+            return new XMLHttpRequest();
+        }
+
+        try {
+            return new ActiveXObject("MSXML2.XMLHTTP.3.0");
+        }
+        catch(error) {
+            qq.log("Neither XHR or ActiveX are supported!", "error");
+            return null;
+        }
+    };
+
+    qq.isFolderDropSupported = function(dataTransfer) {
+        return (dataTransfer.items && dataTransfer.items[0].webkitGetAsEntry);
+    };
+
+    qq.isFileChunkingSupported = function() {
+        return !qq.android() && //android's impl of Blob.slice is broken
+            qq.isXhrUploadSupported() &&
+            (File.prototype.slice !== undefined || File.prototype.webkitSlice !== undefined || File.prototype.mozSlice !== undefined);
+    };
+
+    qq.sliceBlob = function(fileOrBlob, start, end) {
+        var slicer = fileOrBlob.slice || fileOrBlob.mozSlice || fileOrBlob.webkitSlice;
+
+        return slicer.call(fileOrBlob, start, end);
+    };
+
+    qq.arrayBufferToHex = function(buffer) {
+        var bytesAsHex = "",
+            bytes = new Uint8Array(buffer);
+
+
+        qq.each(bytes, function(idx, byte) {
+            var byteAsHexStr = byte.toString(16);
+
+            if (byteAsHexStr.length < 2) {
+                byteAsHexStr = "0" + byteAsHexStr;
+            }
+
+            bytesAsHex += byteAsHexStr;
+        });
+
+        return bytesAsHex;
+    };
+
+    qq.readBlobToHex = function(blob, startOffset, length) {
+        var initialBlob = qq.sliceBlob(blob, startOffset, startOffset + length),
+            fileReader = new FileReader(),
+            promise = new qq.Promise();
+
+        fileReader.onload = function() {
+            promise.success(qq.arrayBufferToHex(fileReader.result));
+        };
+
+        fileReader.readAsArrayBuffer(initialBlob);
+
+        return promise;
+    };
+
+    qq.extend = function(first, second, extendNested) {
+        qq.each(second, function(prop, val) {
+            if (extendNested && qq.isObject(val)) {
+                if (first[prop] === undefined) {
+                    first[prop] = {};
+                }
+                qq.extend(first[prop], val, true);
+            }
+            else {
+                first[prop] = val;
+            }
+        });
+
+        return first;
+    };
+
+    /**
+     * Allow properties in one object to override properties in another,
+     * keeping track of the original values from the target object.
+     *
+     * Note that the pre-overriden properties to be overriden by the source will be passed into the `sourceFn` when it is invoked.
+     *
+     * @param target Update properties in this object from some source
+     * @param sourceFn A function that, when invoked, will return properties that will replace properties with the same name in the target.
+     * @returns {object} The target object
+     */
+    qq.override = function(target, sourceFn) {
+        var super_ = {},
+            source = sourceFn(super_);
+
+        qq.each(source, function(srcPropName, srcPropVal) {
+            if (target[srcPropName] !== undefined) {
+                super_[srcPropName] = target[srcPropName];
+            }
+
+            target[srcPropName] = srcPropVal;
+        });
+
+        return target;
+    };
+
+    /**
+     * Searches for a given element in the array, returns -1 if it is not present.
+     * @param {Number} [from] The index at which to begin the search
+     */
+    qq.indexOf = function(arr, elt, from){
+        if (arr.indexOf) {
+            return arr.indexOf(elt, from);
+        }
+
+        from = from || 0;
+        var len = arr.length;
+
+        if (from < 0) {
+            from += len;
+        }
+
+        for (; from < len; from+=1){
+            if (arr.hasOwnProperty(from) && arr[from] === elt){
+                return from;
+            }
+        }
+        return -1;
+    };
+
+    //this is a version 4 UUID
+    qq.getUniqueId = function(){
+        return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
+            /*jslint eqeq: true, bitwise: true*/
+            var r = Math.random()*16|0, v = c == "x" ? r : (r&0x3|0x8);
+            return v.toString(16);
+        });
+    };
+
+    //
+    // Browsers and platforms detection
+
+    qq.ie       = function(){
+        return navigator.userAgent.indexOf("MSIE") !== -1;
+    };
+    qq.ie7      = function(){
+        return navigator.userAgent.indexOf("MSIE 7") !== -1;
+    };
+    qq.ie10     = function(){
+        return navigator.userAgent.indexOf("MSIE 10") !== -1;
+    };
+    qq.ie11     = function(){
+        return (navigator.userAgent.indexOf("Trident") !== -1 &&
+            navigator.userAgent.indexOf("rv:11") !== -1);
+    };
+    qq.safari   = function(){
+        return navigator.vendor !== undefined && navigator.vendor.indexOf("Apple") !== -1;
+    };
+    qq.chrome   = function(){
+        return navigator.vendor !== undefined && navigator.vendor.indexOf("Google") !== -1;
+    };
+    qq.opera   = function(){
+        return navigator.vendor !== undefined && navigator.vendor.indexOf("Opera") !== -1;
+    };
+    qq.firefox  = function(){
+        return (!qq.ie11() && navigator.userAgent.indexOf("Mozilla") !== -1 && navigator.vendor !== undefined && navigator.vendor === "");
+    };
+    qq.windows  = function(){
+        return navigator.platform === "Win32";
+    };
+    qq.android = function(){
+        return navigator.userAgent.toLowerCase().indexOf("android") !== -1;
+    };
+    qq.ios7 = function() {
+        return qq.ios() && navigator.userAgent.indexOf(" OS 7_") !== -1;
+    };
+    qq.ios = function() {
+        /*jshint -W014 */
+        return navigator.userAgent.indexOf("iPad") !== -1
+            || navigator.userAgent.indexOf("iPod") !== -1
+            || navigator.userAgent.indexOf("iPhone") !== -1;
+    };
+
+    //
+    // Events
+
+    qq.preventDefault = function(e){
+        if (e.preventDefault){
+            e.preventDefault();
+        } else{
+            e.returnValue = false;
+        }
+    };
+
+    /**
+     * Creates and returns element from html string
+     * Uses innerHTML to create an element
+     */
+    qq.toElement = (function(){
+        var div = document.createElement("div");
+        return function(html){
+            div.innerHTML = html;
+            var element = div.firstChild;
+            div.removeChild(element);
+            return element;
+        };
+    }());
+
+    //key and value are passed to callback for each entry in the iterable item
+    qq.each = function(iterableItem, callback) {
+        var keyOrIndex, retVal;
+
+        if (iterableItem) {
+            // Iterate through [`Storage`](http://www.w3.org/TR/webstorage/#the-storage-interface) items
+            if (window.Storage && iterableItem.constructor === window.Storage) {
+                for (keyOrIndex = 0; keyOrIndex < iterableItem.length; keyOrIndex++) {
+                    retVal = callback(iterableItem.key(keyOrIndex), iterableItem.getItem(iterableItem.key(keyOrIndex)));
+                    if (retVal === false) {
+                        break;
+                    }
+                }
+            }
+            // `DataTransferItemList` & `NodeList` objects are array-like and should be treated as arrays
+            // when iterating over items inside the object.
+            else if (qq.isArray(iterableItem) || qq.isItemList(iterableItem) || qq.isNodeList(iterableItem)) {
+                for (keyOrIndex = 0; keyOrIndex < iterableItem.length; keyOrIndex++) {
+                    retVal = callback(keyOrIndex, iterableItem[keyOrIndex]);
+                    if (retVal === false) {
+                        break;
+                    }
+                }
+            }
+            else if (qq.isString(iterableItem)) {
+                for (keyOrIndex = 0; keyOrIndex < iterableItem.length; keyOrIndex++) {
+                    retVal = callback(keyOrIndex, iterableItem.charAt(keyOrIndex));
+                    if (retVal === false) {
+                        break;
+                    }
+                }
+            }
+            else {
+                for (keyOrIndex in iterableItem) {
+                    if (Object.prototype.hasOwnProperty.call(iterableItem, keyOrIndex)) {
+                        retVal = callback(keyOrIndex, iterableItem[keyOrIndex]);
+                        if (retVal === false) {
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+    };
+
+    //include any args that should be passed to the new function after the context arg
+    qq.bind = function(oldFunc, context) {
+        if (qq.isFunction(oldFunc)) {
+            var args =  Array.prototype.slice.call(arguments, 2);
+
+            return function() {
+                var newArgs = qq.extend([], args);
+                if (arguments.length) {
+                    newArgs = newArgs.concat(Array.prototype.slice.call(arguments));
+                }
+                return oldFunc.apply(context, newArgs);
+            };
+        }
+
+        throw new Error("first parameter must be a function!");
+    };
+
+    /**
+     * obj2url() takes a json-object as argument and generates
+     * a querystring. pretty much like jQuery.param()
+     *
+     * how to use:
+     *
+     *    `qq.obj2url({a:'b',c:'d'},'http://any.url/upload?otherParam=value');`
+     *
+     * will result in:
+     *
+     *    `http://any.url/upload?otherParam=value&a=b&c=d`
+     *
+     * @param  Object JSON-Object
+     * @param  String current querystring-part
+     * @return String encoded querystring
+     */
+    qq.obj2url = function(obj, temp, prefixDone){
+        /*jshint laxbreak: true*/
+        var uristrings = [],
+            prefix = "&",
+            add = function(nextObj, i){
+                var nextTemp = temp
+                    ? (/\[\]$/.test(temp)) // prevent double-encoding
+                    ? temp
+                    : temp+"["+i+"]"
+                    : i;
+                if ((nextTemp !== "undefined") && (i !== "undefined")) {
+                    uristrings.push(
+                        (typeof nextObj === "object")
+                            ? qq.obj2url(nextObj, nextTemp, true)
+                            : (Object.prototype.toString.call(nextObj) === "[object Function]")
+                            ? encodeURIComponent(nextTemp) + "=" + encodeURIComponent(nextObj())
+                            : encodeURIComponent(nextTemp) + "=" + encodeURIComponent(nextObj)
+                    );
+                }
+            };
+
+        if (!prefixDone && temp) {
+            prefix = (/\?/.test(temp)) ? (/\?$/.test(temp)) ? "" : "&" : "?";
+            uristrings.push(temp);
+            uristrings.push(qq.obj2url(obj));
+        } else if ((Object.prototype.toString.call(obj) === "[object Array]") && (typeof obj !== "undefined") ) {
+            qq.each(obj, function(idx, val) {
+                add(val, idx);
+            });
+        } else if ((typeof obj !== "undefined") && (obj !== null) && (typeof obj === "object")){
+            qq.each(obj, function(prop, val) {
+                add(val, prop);
+            });
+        } else {
+            uristrings.push(encodeURIComponent(temp) + "=" + encodeURIComponent(obj));
+        }
+
+        if (temp) {
+            return uristrings.join(prefix);
+        } else {
+            return uristrings.join(prefix)
+                .replace(/^&/, "")
+                .replace(/%20/g, "+");
+        }
+    };
+
+    qq.obj2FormData = function(obj, formData, arrayKeyName) {
+        if (!formData) {
+            formData = new FormData();
+        }
+
+        qq.each(obj, function(key, val) {
+            key = arrayKeyName ? arrayKeyName + "[" + key + "]" : key;
+
+            if (qq.isObject(val)) {
+                qq.obj2FormData(val, formData, key);
+            }
+            else if (qq.isFunction(val)) {
+                formData.append(key, val());
+            }
+            else {
+                formData.append(key, val);
+            }
+        });
+
+        return formData;
+    };
+
+    qq.obj2Inputs = function(obj, form) {
+        var input;
+
+        if (!form) {
+            form = document.createElement("form");
+        }
+
+        qq.obj2FormData(obj, {
+            append: function(key, val) {
+                input = document.createElement("input");
+                input.setAttribute("name", key);
+                input.setAttribute("value", val);
+                form.appendChild(input);
+            }
+        });
+
+        return form;
+    };
+
+    qq.setCookie = function(name, value, days) {
+        var date = new Date(),
+            expires = "";
+
+        if (days) {
+            date.setTime(date.getTime()+(days*24*60*60*1000));
+            expires = "; expires="+date.toGMTString();
+        }
+
+        document.cookie = name+"="+value+expires+"; path=/";
+    };
+
+    qq.getCookie = function(name) {
+        var nameEQ = name + "=",
+            ca = document.cookie.split(";"),
+            cookie;
+
+        qq.each(ca, function(idx, part) {
+            /*jshint -W116 */
+            var cookiePart = part;
+            while (cookiePart.charAt(0) == " ") {
+                cookiePart = cookiePart.substring(1, cookiePart.length);
+            }
+
+            if (cookiePart.indexOf(nameEQ) === 0) {
+                cookie = cookiePart.substring(nameEQ.length, cookiePart.length);
+                return false;
+            }
+        });
+
+        return cookie;
+    };
+
+    qq.getCookieNames = function(regexp) {
+        var cookies = document.cookie.split(";"),
+            cookieNames = [];
+
+        qq.each(cookies, function(idx, cookie) {
+            cookie = qq.trimStr(cookie);
+
+            var equalsIdx = cookie.indexOf("=");
+
+            if (cookie.match(regexp)) {
+                cookieNames.push(cookie.substr(0, equalsIdx));
+            }
+        });
+
+        return cookieNames;
+    };
+
+    qq.deleteCookie = function(name) {
+        qq.setCookie(name, "", -1);
+    };
+
+    qq.areCookiesEnabled = function() {
+        var randNum = Math.random() * 100000,
+            name = "qqCookieTest:" + randNum;
+        qq.setCookie(name, 1);
+
+        if (qq.getCookie(name)) {
+            qq.deleteCookie(name);
+            return true;
+        }
+        return false;
+    };
+
+    /**
+     * Not recommended for use outside of Fine Uploader since this falls back to an unchecked eval if JSON.parse is not
+     * implemented.  For a more secure JSON.parse polyfill, use Douglas Crockford's json2.js.
+     */
+    qq.parseJson = function(json) {
+        /*jshint evil: true*/
+        if (window.JSON && qq.isFunction(JSON.parse)) {
+            return JSON.parse(json);
+        } else {
+            return eval("(" + json + ")");
+        }
+    };
+
+    /**
+     * Retrieve the extension of a file, if it exists.
+     *
+     * @param filename
+     * @returns {string || undefined}
+     */
+    qq.getExtension = function(filename) {
+        var extIdx = filename.lastIndexOf(".") + 1;
+
+        if (extIdx > 0) {
+            return filename.substr(extIdx, filename.length - extIdx);
+        }
+    };
+
+    qq.getFilename = function(blobOrFileInput) {
+        /*jslint regexp: true*/
+
+        if (qq.isInput(blobOrFileInput)) {
+            // get input value and remove path to normalize
+            return blobOrFileInput.value.replace(/.*(\/|\\)/, "");
+        }
+        else if (qq.isFile(blobOrFileInput)) {
+            if (blobOrFileInput.fileName !== null && blobOrFileInput.fileName !== undefined) {
+                return blobOrFileInput.fileName;
+            }
+        }
+
+        return blobOrFileInput.name;
+    };
+
+    /**
+     * A generic module which supports object disposing in dispose() method.
+     * */
+    qq.DisposeSupport = function() {
+        var disposers = [];
+
+        return {
+            /** Run all registered disposers */
+            dispose: function() {
+                var disposer;
+                do {
+                    disposer = disposers.shift();
+                    if (disposer) {
+                        disposer();
+                    }
+                }
+                while (disposer);
+            },
+
+            /** Attach event handler and register de-attacher as a disposer */
+            attach: function() {
+                var args = arguments;
+                /*jslint undef:true*/
+                this.addDisposer(qq(args[0]).attach.apply(this, Array.prototype.slice.call(arguments, 1)));
+            },
+
+            /** Add disposer to the collection */
+            addDisposer: function(disposeFunction) {
+                disposers.push(disposeFunction);
+            }
+        };
+    };
+}());
+
+/* globals qq */
+/**
+ * Fine Uploader top-level Error container.  Inherits from `Error`.
+ */
+(function() {
+    "use strict";
+
+    qq.Error = function(message) {
+        this.message = message;
+    };
+
+    qq.Error.prototype = new Error();
+}());
+
+/*global qq */
+qq.version="4.2.1";
+
+/* globals qq */
+qq.supportedFeatures = (function () {
+    "use strict";
+
+    var supportsUploading,
+        supportsAjaxFileUploading,
+        supportsFolderDrop,
+        supportsChunking,
+        supportsResume,
+        supportsUploadViaPaste,
+        supportsUploadCors,
+        supportsDeleteFileXdr,
+        supportsDeleteFileCorsXhr,
+        supportsDeleteFileCors,
+        supportsFolderSelection,
+        supportsImagePreviews;
+
+
+    function testSupportsFileInputElement() {
+        var supported = true,
+            tempInput;
+
+        try {
+            tempInput = document.createElement("input");
+            tempInput.type = "file";
+            qq(tempInput).hide();
+
+            if (tempInput.disabled) {
+                supported = false;
+            }
+        }
+        catch (ex) {
+            supported = false;
+        }
+
+        return supported;
+    }
+
+    //only way to test for Filesystem API support since webkit does not expose the DataTransfer interface
+    function isChrome21OrHigher() {
+        return (qq.chrome() || qq.opera()) &&
+            navigator.userAgent.match(/Chrome\/[2][1-9]|Chrome\/[3-9][0-9]/) !== undefined;
+    }
+
+    //only way to test for complete Clipboard API support at this time
+    function isChrome14OrHigher() {
+        return (qq.chrome() || qq.opera()) &&
+            navigator.userAgent.match(/Chrome\/[1][4-9]|Chrome\/[2-9][0-9]/) !== undefined;
+    }
+
+    //Ensure we can send cross-origin `XMLHttpRequest`s
+    function isCrossOriginXhrSupported() {
+        if (window.XMLHttpRequest) {
+            var xhr = qq.createXhrInstance();
+
+            //Commonly accepted test for XHR CORS support.
+            return xhr.withCredentials !== undefined;
+        }
+
+        return false;
+    }
+
+    //Test for (terrible) cross-origin ajax transport fallback for IE9 and IE8
+    function isXdrSupported() {
+        return window.XDomainRequest !== undefined;
+    }
+
+    // CORS Ajax requests are supported if it is either possible to send credentialed `XMLHttpRequest`s,
+    // or if `XDomainRequest` is an available alternative.
+    function isCrossOriginAjaxSupported() {
+        if (isCrossOriginXhrSupported()) {
+            return true;
+        }
+
+        return isXdrSupported();
+    }
+
+    function isFolderSelectionSupported() {
+        // We know that folder selection is only supported in Chrome via this proprietary attribute for now
+        return document.createElement("input").webkitdirectory !== undefined;
+    }
+
+
+    supportsUploading = testSupportsFileInputElement();
+
+    supportsAjaxFileUploading = supportsUploading && qq.isXhrUploadSupported();
+
+    supportsFolderDrop = supportsAjaxFileUploading && isChrome21OrHigher();
+
+    supportsChunking = supportsAjaxFileUploading && qq.isFileChunkingSupported();
+
+    supportsResume = supportsAjaxFileUploading && supportsChunking && qq.areCookiesEnabled();
+
+    supportsUploadViaPaste = supportsAjaxFileUploading && isChrome14OrHigher();
+
+    supportsUploadCors = supportsUploading && (window.postMessage !== undefined || supportsAjaxFileUploading);
+
+    supportsDeleteFileCorsXhr = isCrossOriginXhrSupported();
+
+    supportsDeleteFileXdr = isXdrSupported();
+
+    supportsDeleteFileCors = isCrossOriginAjaxSupported();
+
+    supportsFolderSelection = isFolderSelectionSupported();
+
+    supportsImagePreviews = supportsAjaxFileUploading && window.FileReader !== undefined;
+
+
+    return {
+        uploading: supportsUploading,
+        ajaxUploading: supportsAjaxFileUploading,
+        fileDrop: supportsAjaxFileUploading, //NOTE: will also return true for touch-only devices.  It's not currently possible to accurately test for touch-only devices
+        folderDrop: supportsFolderDrop,
+        chunking: supportsChunking,
+        resume: supportsResume,
+        uploadCustomHeaders: supportsAjaxFileUploading,
+        uploadNonMultipart: supportsAjaxFileUploading,
+        itemSizeValidation: supportsAjaxFileUploading,
+        uploadViaPaste: supportsUploadViaPaste,
+        progressBar: supportsAjaxFileUploading,
+        uploadCors: supportsUploadCors,
+        deleteFileCorsXhr: supportsDeleteFileCorsXhr,
+        deleteFileCorsXdr: supportsDeleteFileXdr, //NOTE: will also return true in IE10, where XDR is also supported
+        deleteFileCors: supportsDeleteFileCors,
+        canDetermineSize: supportsAjaxFileUploading,
+        folderSelection: supportsFolderSelection,
+        imagePreviews: supportsImagePreviews,
+        imageValidation: supportsImagePreviews,
+        pause: supportsChunking
+    };
+
+}());
+
+/*globals qq*/
+qq.Promise = function() {
+    "use strict";
+
+    var successArgs, failureArgs,
+        successCallbacks = [],
+        failureCallbacks = [],
+        doneCallbacks = [],
+        state = 0;
+
+    qq.extend(this, {
+        then: function(onSuccess, onFailure) {
+            if (state === 0) {
+                if (onSuccess) {
+                    successCallbacks.push(onSuccess);
+                }
+                if (onFailure) {
+                    failureCallbacks.push(onFailure);
+                }
+            }
+            else if (state === -1) {
+                onFailure && onFailure.apply(null, failureArgs);
+            }
+            else if (onSuccess) {
+                onSuccess.apply(null,successArgs);
+            }
+
+            return this;
+        },
+
+        done: function(callback) {
+            if (state === 0) {
+                doneCallbacks.push(callback);
+            }
+            else {
+                callback.apply(null, failureArgs === undefined ? successArgs : failureArgs);
+            }
+
+            return this;
+        },
+
+        success: function() {
+            state = 1;
+            successArgs = arguments;
+
+            if (successCallbacks.length) {
+                qq.each(successCallbacks, function(idx, callback) {
+                    callback.apply(null, successArgs);
+                });
+            }
+
+            if(doneCallbacks.length) {
+                qq.each(doneCallbacks, function(idx, callback) {
+                    callback.apply(null, successArgs);
+                });
+            }
+
+            return this;
+        },
+
+        failure: function() {
+            state = -1;
+            failureArgs = arguments;
+
+            if (failureCallbacks.length) {
+                qq.each(failureCallbacks, function(idx, callback) {
+                    callback.apply(null, failureArgs);
+                });
+            }
+
+            if(doneCallbacks.length) {
+                qq.each(doneCallbacks, function(idx, callback) {
+                    callback.apply(null, failureArgs);
+                });
+            }
+
+            return this;
+        }
+    });
+};
+
+/*globals qq*/
+
+/**
+ * This module represents an upload or "Select File(s)" button.  It's job is to embed an opaque `<input type="file">`
+ * element as a child of a provided "container" element.  This "container" element (`options.element`) is used to provide
+ * a custom style for the `<input type="file">` element.  The ability to change the style of the container element is also
+ * provided here by adding CSS classes to the container on hover/focus.
+ *
+ * TODO Eliminate the mouseover and mouseout event handlers since the :hover CSS pseudo-class should now be
+ * available on all supported browsers.
+ *
+ * @param o Options to override the default values
+ */
+qq.UploadButton = function(o) {
+    "use strict";
+
+
+    var disposeSupport = new qq.DisposeSupport(),
+
+        options = {
+            // "Container" element
+            element: null,
+
+            // If true adds `multiple` attribute to `<input type="file">`
+            multiple: false,
+
+            // Corresponds to the `accept` attribute on the associated `<input type="file">`
+            acceptFiles: null,
+
+            // A true value allows folders to be selected, if supported by the UA
+            folders: false,
+
+            // `name` attribute of `<input type="file">`
+            name: "qqfile",
+
+            // Called when the browser invokes the onchange handler on the `<input type="file">`
+            onChange: function(input) {},
+
+            // **This option will be removed** in the future as the :hover CSS pseudo-class is available on all supported browsers
+            hoverClass: "qq-upload-button-hover",
+
+            focusClass: "qq-upload-button-focus"
+        },
+        input, buttonId;
+
+    // Overrides any of the default option values with any option values passed in during construction.
+    qq.extend(options, o);
+
+    buttonId = qq.getUniqueId();
+
+    // Embed an opaque `<input type="file">` element as a child of `options.element`.
+    function createInput() {
+        var input = document.createElement("input");
+
+        input.setAttribute(qq.UploadButton.BUTTON_ID_ATTR_NAME, buttonId);
+
+        if (options.multiple) {
+            input.setAttribute("multiple", "");
+        }
+
+        if (options.folders && qq.supportedFeatures.folderSelection) {
+            // selecting directories is only possible in Chrome now, via a vendor-specific prefixed attribute
+            input.setAttribute("webkitdirectory", "");
+        }
+
+        if (options.acceptFiles) {
+            input.setAttribute("accept", options.acceptFiles);
+        }
+
+        input.setAttribute("type", "file");
+        input.setAttribute("name", options.name);
+
+        qq(input).css({
+            position: "absolute",
+            // in Opera only 'browse' button
+            // is clickable and it is located at
+            // the right side of the input
+            right: 0,
+            top: 0,
+            fontFamily: "Arial",
+            // 4 persons reported this, the max values that worked for them were 243, 236, 236, 118
+            fontSize: "118px",
+            margin: 0,
+            padding: 0,
+            cursor: "pointer",
+            opacity: 0
+        });
+
+        options.element.appendChild(input);
+
+        disposeSupport.attach(input, "change", function(){
+            options.onChange(input);
+        });
+
+        // **These event handlers will be removed** in the future as the :hover CSS pseudo-class is available on all supported browsers
+        disposeSupport.attach(input, "mouseover", function(){
+            qq(options.element).addClass(options.hoverClass);
+        });
+        disposeSupport.attach(input, "mouseout", function(){
+            qq(options.element).removeClass(options.hoverClass);
+        });
+
+        disposeSupport.attach(input, "focus", function(){
+            qq(options.element).addClass(options.focusClass);
+        });
+        disposeSupport.attach(input, "blur", function(){
+            qq(options.element).removeClass(options.focusClass);
+        });
+
+        // IE and Opera, unfortunately have 2 tab stops on file input
+        // which is unacceptable in our case, disable keyboard access
+        if (window.attachEvent) {
+            // it is IE or Opera
+            input.setAttribute("tabIndex", "-1");
+        }
+
+        return input;
+    }
+
+    // Make button suitable container for input
+    qq(options.element).css({
+        position: "relative",
+        overflow: "hidden",
+        // Make sure browse button is in the right side in Internet Explorer
+        direction: "ltr"
+    });
+
+    input = createInput();
+
+
+    // Exposed API
+    qq.extend(this, {
+        getInput: function() {
+            return input;
+        },
+
+        getButtonId: function() {
+            return buttonId;
+        },
+
+        setMultiple: function(isMultiple) {
+            if (isMultiple !== options.multiple) {
+                if (isMultiple) {
+                    input.setAttribute("multiple", "");
+                }
+                else {
+                    input.removeAttribute("multiple");
+                }
+            }
+        },
+
+        setAcceptFiles: function(acceptFiles) {
+            if (acceptFiles !== options.acceptFiles) {
+                input.setAttribute("accept", acceptFiles);
+            }
+        },
+
+        reset: function(){
+            if (input.parentNode){
+                qq(input).remove();
+            }
+
+            qq(options.element).removeClass(options.focusClass);
+            input = createInput();
+        }
+    });
+};
+
+qq.UploadButton.BUTTON_ID_ATTR_NAME = "qq-button-id";
+
+/*globals qq */
+qq.UploadData = function(uploaderProxy) {
+    "use strict";
+
+    var data = [],
+        byUuid = {},
+        byStatus = {};
+
+
+    function getDataByIds(idOrIds) {
+        if (qq.isArray(idOrIds)) {
+            var entries = [];
+
+            qq.each(idOrIds, function(idx, id) {
+                entries.push(data[id]);
+            });
+
+            return entries;
+        }
+
+        return data[idOrIds];
+    }
+
+    function getDataByUuids(uuids) {
+        if (qq.isArray(uuids)) {
+            var entries = [];
+
+            qq.each(uuids, function(idx, uuid) {
+                entries.push(data[byUuid[uuid]]);
+            });
+
+            return entries;
+        }
+
+        return data[byUuid[uuids]];
+    }
+
+    function getDataByStatus(status) {
+        var statusResults = [],
+            statuses = [].concat(status);
+
+        qq.each(statuses, function(index, statusEnum) {
+            var statusResultIndexes = byStatus[statusEnum];
+
+            if (statusResultIndexes !== undefined) {
+                qq.each(statusResultIndexes, function(i, dataIndex) {
+                    statusResults.push(data[dataIndex]);
+                });
+            }
+        });
+
+        return statusResults;
+    }
+
+    qq.extend(this, {
+        /**
+         * Adds a new file to the data cache for tracking purposes.
+         *
+         * @param uuid Initial UUID for this file.
+         * @param name Initial name of this file.
+         * @param size Size of this file, -1 if this cannot be determined
+         * @param status Initial `qq.status` for this file.  If null/undefined, `qq.status.SUBMITTING`.
+         * @returns {number} Internal ID for this file.
+         */
+        addFile: function(uuid, name, size, status) {
+            status = status || qq.status.SUBMITTING;
+
+            var id = data.push({
+                name: name,
+                originalName: name,
+                uuid: uuid,
+                size: size,
+                status: status
+            }) - 1;
+
+            data[id].id = id;
+            byUuid[uuid] = id;
+
+            if (byStatus[status] === undefined) {
+                byStatus[status] = [];
+            }
+            byStatus[status].push(id);
+
+            uploaderProxy.onStatusChange(id, null, status);
+
+            return id;
+        },
+
+        retrieve: function(optionalFilter) {
+            if (qq.isObject(optionalFilter) && data.length)  {
+                if (optionalFilter.id !== undefined) {
+                    return getDataByIds(optionalFilter.id);
+                }
+
+                else if (optionalFilter.uuid !== undefined) {
+                    return getDataByUuids(optionalFilter.uuid);
+                }
+
+                else if (optionalFilter.status) {
+                    return getDataByStatus(optionalFilter.status);
+                }
+            }
+            else {
+                return qq.extend([], data, true);
+            }
+        },
+
+        reset: function() {
+            data = [];
+            byUuid = {};
+            byStatus = {};
+        },
+
+        setStatus: function(id, newStatus) {
+            var oldStatus = data[id].status,
+                byStatusOldStatusIndex = qq.indexOf(byStatus[oldStatus], id);
+
+            byStatus[oldStatus].splice(byStatusOldStatusIndex, 1);
+
+            data[id].status = newStatus;
+
+            if (byStatus[newStatus] === undefined) {
+                byStatus[newStatus] = [];
+            }
+            byStatus[newStatus].push(id);
+
+            uploaderProxy.onStatusChange(id, oldStatus, newStatus);
+        },
+
+        uuidChanged: function(id, newUuid) {
+            var oldUuid = data[id].uuid;
+
+            data[id].uuid = newUuid;
+            byUuid[newUuid] = id;
+            delete byUuid[oldUuid];
+        },
+
+        updateName: function(id, newName) {
+            data[id].name = newName;
+        }
+    });
+};
+
+qq.status = {
+    SUBMITTING: "submitting",
+    SUBMITTED: "submitted",
+    REJECTED: "rejected",
+    QUEUED: "queued",
+    CANCELED: "canceled",
+    PAUSED: "paused",
+    UPLOADING: "uploading",
+    UPLOAD_RETRYING: "retrying upload",
+    UPLOAD_SUCCESSFUL: "upload successful",
+    UPLOAD_FAILED: "upload failed",
+    DELETE_FAILED: "delete failed",
+    DELETING: "deleting",
+    DELETED: "deleted"
+};
+
+/*globals qq*/
+/**
+ * Defines the public API for FineUploaderBasic mode.
+ */
+(function(){
+    "use strict";
+
+    qq.basePublicApi = {
+        log: function(str, level) {
+            if (this._options.debug && (!level || level === "info")) {
+                qq.log("[FineUploader " + qq.version + "] " + str);
+            }
+            else if (level && level !== "info") {
+                qq.log("[FineUploader " + qq.version + "] " + str, level);
+
+            }
+        },
+
+        setParams: function(params, id) {
+            /*jshint eqeqeq: true, eqnull: true*/
+            if (id == null) {
+                this._options.request.params = params;
+            }
+            else {
+                this._paramsStore.setParams(params, id);
+            }
+        },
+
+        setDeleteFileParams: function(params, id) {
+            /*jshint eqeqeq: true, eqnull: true*/
+            if (id == null) {
+                this._options.deleteFile.params = params;
+            }
+            else {
+                this._deleteFileParamsStore.setParams(params, id);
+            }
+        },
+
+        // Re-sets the default endpoint, an endpoint for a specific file, or an endpoint for a specific button
+        setEndpoint: function(endpoint, id) {
+            /*jshint eqeqeq: true, eqnull: true*/
+            if (id == null) {
+                this._options.request.endpoint = endpoint;
+            }
+            else {
+                this._endpointStore.setEndpoint(endpoint, id);
+            }
+        },
+
+        getInProgress: function() {
+            return this._uploadData.retrieve({
+                status: [
+                    qq.status.UPLOADING,
+                    qq.status.UPLOAD_RETRYING,
+                    qq.status.QUEUED
+                ]
+            }).length;
+        },
+
+        getNetUploads: function() {
+            return this._netUploaded;
+        },
+
+        uploadStoredFiles: function() {
+            var idToUpload;
+
+            if (this._storedIds.length === 0) {
+                this._itemError("noFilesError");
+            }
+            else {
+                while (this._storedIds.length) {
+                    idToUpload = this._storedIds.shift();
+                    this._handler.upload(idToUpload);
+                }
+            }
+        },
+
+        clearStoredFiles: function(){
+            this._storedIds = [];
+        },
+
+        retry: function(id) {
+            return this._manualRetry(id);
+        },
+
+        cancel: function(id) {
+            this._handler.cancel(id);
+        },
+
+        cancelAll: function() {
+            var storedIdsCopy = [],
+                self = this;
+
+            qq.extend(storedIdsCopy, this._storedIds);
+            qq.each(storedIdsCopy, function(idx, storedFileId) {
+                self.cancel(storedFileId);
+            });
+
+            this._handler.cancelAll();
+        },
+
+        reset: function() {
+            this.log("Resetting uploader...");
+
+            this._handler.reset();
+            this._storedIds = [];
+            this._autoRetries = [];
+            this._retryTimeouts = [];
+            this._preventRetries = [];
+            this._thumbnailUrls = [];
+
+            qq.each(this._buttons, function(idx, button) {
+                button.reset();
+            });
+
+            this._paramsStore.reset();
+            this._endpointStore.reset();
+            this._netUploadedOrQueued = 0;
+            this._netUploaded = 0;
+            this._uploadData.reset();
+            this._buttonIdsForFileIds = [];
+
+            this._pasteHandler && this._pasteHandler.reset();
+            this._options.session.refreshOnReset && this._refreshSessionData();
+        },
+
+        addFiles: function(filesOrInputs, params, endpoint) {
+            var verifiedFilesOrInputs = [],
+                fileOrInputIndex, fileOrInput, fileIndex;
+
+            if (filesOrInputs) {
+                if (!qq.isFileList(filesOrInputs)) {
+                    filesOrInputs = [].concat(filesOrInputs);
+                }
+
+                for (fileOrInputIndex = 0; fileOrInputIndex < filesOrInputs.length; fileOrInputIndex+=1) {
+                    fileOrInput = filesOrInputs[fileOrInputIndex];
+
+                    if (qq.isFileOrInput(fileOrInput)) {
+                        if (qq.isInput(fileOrInput) && qq.supportedFeatures.ajaxUploading) {
+                            for (fileIndex = 0; fileIndex < fileOrInput.files.length; fileIndex++) {
+                                this._handleNewFile(fileOrInput.files[fileIndex], verifiedFilesOrInputs);
+                            }
+                        }
+                        else {
+                            this._handleNewFile(fileOrInput, verifiedFilesOrInputs);
+                        }
+                    }
+                    else {
+                        this.log(fileOrInput + " is not a File or INPUT element!  Ignoring!", "warn");
+                    }
+                }
+
+                this.log("Received " + verifiedFilesOrInputs.length + " files or inputs.");
+                this._prepareItemsForUpload(verifiedFilesOrInputs, params, endpoint);
+            }
+        },
+
+        addBlobs: function(blobDataOrArray, params, endpoint) {
+            if (blobDataOrArray) {
+                var blobDataArray = [].concat(blobDataOrArray),
+                    verifiedBlobDataList = [],
+                    self = this;
+
+                qq.each(blobDataArray, function(idx, blobData) {
+                    var blobOrBlobData;
+
+                    if (qq.isBlob(blobData) && !qq.isFileOrInput(blobData)) {
+                        blobOrBlobData = {
+                            blob: blobData,
+                            name: self._options.blobs.defaultName
+                        };
+                    }
+                    else if (qq.isObject(blobData) && blobData.blob && blobData.name) {
+                        blobOrBlobData = blobData;
+                    }
+                    else {
+                        self.log("addBlobs: entry at index " + idx + " is not a Blob or a BlobData object", "error");
+                    }
+
+                    blobOrBlobData && self._handleNewFile(blobOrBlobData, verifiedBlobDataList);
+                });
+
+                this._prepareItemsForUpload(verifiedBlobDataList, params, endpoint);
+            }
+            else {
+                this.log("undefined or non-array parameter passed into addBlobs", "error");
+            }
+        },
+
+        getUuid: function(id) {
+            return this._uploadData.retrieve({id: id}).uuid;
+        },
+
+        setUuid: function(id, newUuid) {
+            return this._uploadData.uuidChanged(id, newUuid);
+        },
+
+        getResumableFilesData: function() {
+            return this._handler.getResumableFilesData();
+        },
+
+        getSize: function(id) {
+            return this._uploadData.retrieve({id: id}).size;
+        },
+
+        getName: function(id) {
+            return this._uploadData.retrieve({id: id}).name;
+        },
+
+        setName: function(id, newName) {
+            this._uploadData.updateName(id, newName);
+        },
+
+        getFile: function(fileOrBlobId) {
+            return this._handler.getFile(fileOrBlobId);
+        },
+
+        deleteFile: function(id) {
+            this._onSubmitDelete(id);
+        },
+
+        setDeleteFileEndpoint: function(endpoint, id) {
+            /*jshint eqeqeq: true, eqnull: true*/
+            if (id == null) {
+                this._options.deleteFile.endpoint = endpoint;
+            }
+            else {
+                this._deleteFileEndpointStore.setEndpoint(endpoint, id);
+            }
+        },
+
+        doesExist: function(fileOrBlobId) {
+            return this._handler.isValid(fileOrBlobId);
+        },
+
+        getUploads: function(optionalFilter) {
+            return this._uploadData.retrieve(optionalFilter);
+        },
+
+        getButton: function(fileId) {
+            return this._getButton(this._buttonIdsForFileIds[fileId]);
+        },
+
+        // Generate a variable size thumbnail on an img or canvas,
+        // returning a promise that is fulfilled when the attempt completes.
+        // Thumbnail can either be based off of a URL for an image returned
+        // by the server in the upload response, or the associated `Blob`.
+        drawThumbnail: function(fileId, imgOrCanvas, maxSize, fromServer) {
+            if (this._imageGenerator) {
+                var fileOrUrl = this._thumbnailUrls[fileId],
+                    options = {
+                        scale: maxSize > 0,
+                        maxSize: maxSize > 0 ? maxSize : null
+                    };
+
+                // If client-side preview generation is possible
+                // and we are not specifically looking for the image URl returned by the server...
+                if (!fromServer && qq.supportedFeatures.imagePreviews) {
+                    fileOrUrl = this.getFile(fileId);
+                }
+
+                /* jshint eqeqeq:false,eqnull:true */
+                if (fileOrUrl == null) {
+                    return new qq.Promise().failure(imgOrCanvas, "File or URL not found.");
+                }
+
+                return this._imageGenerator.generate(fileOrUrl, imgOrCanvas, options);
+            }
+        },
+
+        pauseUpload: function(id) {
+            var uploadData = this._uploadData.retrieve({id: id});
+
+            if (!qq.supportedFeatures.pause || !this._options.chunking.enabled) {
+                return false;
+            }
+
+            // Pause only really makes sense if the file is uploading or retrying
+            if (qq.indexOf([qq.status.UPLOADING, qq.status.UPLOAD_RETRYING], uploadData.status) >= 0) {
+                if (this._handler.pause(id)) {
+                    this._uploadData.setStatus(id, qq.status.PAUSED);
+                    return true;
+                }
+                else {
+                    qq.log(qq.format("Unable to pause file ID {} ({}).", id, this.getName(id)), "error");
+                }
+            }
+            else {
+                qq.log(qq.format("Ignoring pause for file ID {} ({}).  Not in progress.", id, this.getName(id)), "error");
+            }
+
+            return false;
+        },
+
+        continueUpload: function(id) {
+            var uploadData = this._uploadData.retrieve({id: id});
+
+            if (!qq.supportedFeatures.pause || !this._options.chunking.enabled) {
+                return false;
+            }
+
+            if (uploadData.status === qq.status.PAUSED) {
+                qq.log(qq.format("Paused file ID {} ({}) will be continued.  Not paused.", id, this.getName(id)));
+
+                if (!this._handler.upload(id)) {
+                    this._uploadData.setStatus(id, qq.status.QUEUED);
+                }
+                return true;
+            }
+            else {
+                qq.log(qq.format("Ignoring continue for file ID {} ({}).  Not paused.", id, this.getName(id)), "error");
+            }
+
+            return false;
+        },
+
+        getRemainingAllowedItems: function() {
+            var allowedItems = this._options.validation.itemLimit;
+
+            if (allowedItems > 0) {
+                return this._options.validation.itemLimit - this._netUploadedOrQueued;
+            }
+
+            return null;
+        }
+    };
+
+
+
+
+    /**
+     * Defines the private (internal) API for FineUploaderBasic mode.
+     */
+    qq.basePrivateApi = {
+        // Attempts to refresh session data only if the `qq.Session` module exists
+        // and a session endpoint has been specified.  The `onSessionRequestComplete`
+        // callback will be invoked once the refresh is complete.
+        _refreshSessionData: function() {
+            var self = this,
+                options = this._options.session;
+
+            /* jshint eqnull:true */
+            if (qq.Session && this._options.session.endpoint != null) {
+                if (!this._session) {
+                    qq.extend(options, this._options.cors);
+
+                    options.log = qq.bind(this.log, this);
+                    options.addFileRecord = qq.bind(this._addCannedFile, this);
+
+                    this._session = new qq.Session(options);
+                }
+
+                setTimeout(function() {
+                    self._session.refresh().then(function(response, xhrOrXdr) {
+
+                        self._options.callbacks.onSessionRequestComplete(response, true, xhrOrXdr);
+
+                    }, function(response, xhrOrXdr) {
+
+                        self._options.callbacks.onSessionRequestComplete(response, false, xhrOrXdr);
+                    });
+                }, 0);
+            }
+        },
+
+        // Updates internal state with a file record (not backed by a live file).  Returns the assigned ID.
+        _addCannedFile: function(sessionData) {
+            var id = this._uploadData.addFile(sessionData.uuid, sessionData.name, sessionData.size,
+                qq.status.UPLOAD_SUCCESSFUL);
+
+            sessionData.deleteFileEndpoint && this.setDeleteFileEndpoint(sessionData.deleteFileEndpoint, id);
+            sessionData.deleteFileParams && this.setDeleteFileParams(sessionData.deleteFileParams, id);
+
+            if (sessionData.thumbnailUrl) {
+                this._thumbnailUrls[id] = sessionData.thumbnailUrl;
+            }
+
+            this._netUploaded++;
+            this._netUploadedOrQueued++;
+
+            return id;
+        },
+
+        // Updates internal state when a new file has been received, and adds it along with its ID to a passed array.
+        _handleNewFile: function(file, newFileWrapperList) {
+            var size = -1,
+                uuid = qq.getUniqueId(),
+                name = qq.getFilename(file),
+                id;
+
+            if (file.size >= 0) {
+                size = file.size;
+            }
+            else if (file.blob) {
+                size = file.blob.size;
+            }
+
+            id = this._uploadData.addFile(uuid, name, size);
+            this._handler.add(id, file);
+
+            this._netUploadedOrQueued++;
+
+            newFileWrapperList.push({id: id, file: file});
+        },
+
+        // Creates an internal object that tracks various properties of each extra button,
+        // and then actually creates the extra button.
+        _generateExtraButtonSpecs: function() {
+            var self = this;
+
+            this._extraButtonSpecs = {};
+
+            qq.each(this._options.extraButtons, function(idx, extraButtonOptionEntry) {
+                var multiple = extraButtonOptionEntry.multiple,
+                    validation = qq.extend({}, self._options.validation, true),
+                    extraButtonSpec = qq.extend({}, extraButtonOptionEntry);
+
+                if (multiple === undefined) {
+                    multiple = self._options.multiple;
+                }
+
+                if (extraButtonSpec.validation) {
+                    qq.extend(validation, extraButtonOptionEntry.validation, true);
+                }
+
+                qq.extend(extraButtonSpec, {
+                    multiple: multiple,
+                    validation: validation
+                }, true);
+
+                self._initExtraButton(extraButtonSpec);
+            });
+        },
+
+        // Creates an extra button element
+        _initExtraButton: function(spec) {
+            var button = this._createUploadButton({
+                element: spec.element,
+                multiple: spec.multiple,
+                accept: spec.validation.acceptFiles,
+                folders: spec.folders,
+                allowedExtensions: spec.validation.allowedExtensions
+            });
+
+            this._extraButtonSpecs[button.getButtonId()] = spec;
+        },
+
+        /**
+         * Gets the internally used tracking ID for a button.
+         *
+         * @param buttonOrFileInputOrFile `File`, `<input type="file">`, or a button container element
+         * @returns {*} The button's ID, or undefined if no ID is recoverable
+         * @private
+         */
+        _getButtonId: function(buttonOrFileInputOrFile) {
+            var inputs, fileInput;
+
+            // If the item is a `Blob` it will never be associated with a button or drop zone.
+            if (buttonOrFileInputOrFile && !buttonOrFileInputOrFile.blob && !qq.isBlob(buttonOrFileInputOrFile)) {
+                if (qq.isFile(buttonOrFileInputOrFile)) {
+                    return buttonOrFileInputOrFile.qqButtonId;
+                }
+                else if (buttonOrFileInputOrFile.tagName.toLowerCase() === "input" &&
+                    buttonOrFileInputOrFile.type.toLowerCase() === "file") {
+
+                    return buttonOrFileInputOrFile.getAttribute(qq.UploadButton.BUTTON_ID_ATTR_NAME);
+                }
+
+                inputs = buttonOrFileInputOrFile.getElementsByTagName("input");
+
+                qq.each(inputs, function(idx, input) {
+                    if (input.getAttribute("type") === "file") {
+                        fileInput = input;
+                        return false;
+                    }
+                });
+
+                if (fileInput) {
+                    return fileInput.getAttribute(qq.UploadButton.BUTTON_ID_ATTR_NAME);
+                }
+            }
+        },
+
+        _annotateWithButtonId: function(file, associatedInput) {
+            if (qq.isFile(file)) {
+                file.qqButtonId = this._getButtonId(associatedInput);
+            }
+        },
+
+        _getButton: function(buttonId) {
+            var extraButtonsSpec = this._extraButtonSpecs[buttonId];
+
+            if (extraButtonsSpec) {
+                return extraButtonsSpec.element;
+            }
+            else if (buttonId === this._defaultButtonId) {
+                return this._options.button;
+            }
+        },
+
+        _handleCheckedCallback: function(details) {
+            var self = this,
+                callbackRetVal = details.callback();
+
+            if (callbackRetVal instanceof qq.Promise) {
+                this.log(details.name + " - waiting for " + details.name + " promise to be fulfilled for " + details.identifier);
+                return callbackRetVal.then(
+                    function(successParam) {
+                        self.log(details.name + " promise success for " + details.identifier);
+                        details.onSuccess(successParam);
+                    },
+                    function() {
+                        if (details.onFailure) {
+                            self.log(details.name + " promise failure for " + details.identifier);
+                            details.onFailure();
+                        }
+                        else {
+                            self.log(details.name + " promise failure for " + details.identifier);
+                        }
+                    });
+            }
+
+            if (callbackRetVal !== false) {
+                details.onSuccess(callbackRetVal);
+            }
+            else {
+                if (details.onFailure) {
+                    this.log(details.name + " - return value was 'false' for " + details.identifier + ".  Invoking failure callback.");
+                    details.onFailure();
+                }
+                else {
+                    this.log(details.name + " - return value was 'false' for " + details.identifier + ".  Will not proceed.");
+                }
+            }
+
+            return callbackRetVal;
+        },
+
+        /**
+         * Generate a tracked upload button.
+         *
+         * @param spec Object containing a required `element` property
+         * along with optional `multiple`, `accept`, and `folders`.
+         * @returns {qq.UploadButton}
+         * @private
+         */
+        _createUploadButton: function(spec) {
+            var self = this,
+                acceptFiles = spec.accept || this._options.validation.acceptFiles,
+                allowedExtensions = spec.allowedExtensions || this._options.validation.allowedExtensions;
+
+            function allowMultiple() {
+                if (qq.supportedFeatures.ajaxUploading) {
+                    // Workaround for bug in iOS7 (see #1039)
+                    if (qq.ios7() && self._isAllowedExtension(allowedExtensions, ".mov")) {
+                        return false;
+                    }
+
+                    if (spec.multiple === undefined) {
+                        return self._options.multiple;
+                    }
+
+                    return spec.multiple;
+                }
+
+                return false;
+            }
+
+            var button = new qq.UploadButton({
+                element: spec.element,
+                folders: spec.folders,
+                name: this._options.request.inputName,
+                multiple: allowMultiple(),
+                acceptFiles: acceptFiles,
+                onChange: function(input) {
+                    self._onInputChange(input);
+                },
+                hoverClass: this._options.classes.buttonHover,
+                focusClass: this._options.classes.buttonFocus
+            });
+
+            this._disposeSupport.addDisposer(function() {
+                button.dispose();
+            });
+
+            self._buttons.push(button);
+
+            return button;
+        },
+
+        _createUploadHandler: function(additionalOptions, namespace) {
+            var self = this,
+                options = {
+                    debug: this._options.debug,
+                    maxConnections: this._options.maxConnections,
+                    cors: this._options.cors,
+                    demoMode: this._options.demoMode,
+                    paramsStore: this._paramsStore,
+                    endpointStore: this._endpointStore,
+                    chunking: this._options.chunking,
+                    resume: this._options.resume,
+                    blobs: this._options.blobs,
+                    log: qq.bind(self.log, self),
+                    onProgress: function(id, name, loaded, total){
+                        self._onProgress(id, name, loaded, total);
+                        self._options.callbacks.onProgress(id, name, loaded, total);
+                    },
+                    onComplete: function(id, name, result, xhr){
+                        var retVal = self._onComplete(id, name, result, xhr);
+
+                        // If the internal `_onComplete` handler returns a promise, don't invoke the `onComplete` callback
+                        // until the promise has been fulfilled.
+                        if (retVal instanceof  qq.Promise) {
+                            retVal.done(function() {
+                                self._options.callbacks.onComplete(id, name, result, xhr);
+                            });
+                        }
+                        else {
+                            self._options.callbacks.onComplete(id, name, result, xhr);
+                        }
+                    },
+                    onCancel: function(id, name) {
+                        return self._handleCheckedCallback({
+                            name: "onCancel",
+                            callback: qq.bind(self._options.callbacks.onCancel, self, id, name),
+                            onSuccess: qq.bind(self._onCancel, self, id, name),
+                            identifier: id
+                        });
+                    },
+                    onUpload: function(id, name) {
+                        self._onUpload(id, name);
+                        self._options.callbacks.onUpload(id, name);
+                    },
+                    onUploadChunk: function(id, name, chunkData) {
+                        self._onUploadChunk(id, chunkData);
+                        self._options.callbacks.onUploadChunk(id, name, chunkData);
+                    },
+                    onUploadChunkSuccess: function(id, chunkData, result, xhr) {
+                        self._options.callbacks.onUploadChunkSuccess.apply(self, arguments);
+                    },
+                    onResume: function(id, name, chunkData) {
+                        return self._options.callbacks.onResume(id, name, chunkData);
+                    },
+                    onAutoRetry: function(id, name, responseJSON, xhr) {
+                        return self._onAutoRetry.apply(self, arguments);
+                    },
+                    onUuidChanged: function(id, newUuid) {
+                        self.log("Server requested UUID change from '" + self.getUuid(id) + "' to '" + newUuid + "'");
+                        self.setUuid(id, newUuid);
+                    },
+                    getName: qq.bind(self.getName, self),
+                    getUuid: qq.bind(self.getUuid, self),
+                    getSize: qq.bind(self.getSize, self)
+                };
+
+            qq.each(this._options.request, function(prop, val) {
+                options[prop] = val;
+            });
+
+            if (additionalOptions) {
+                qq.each(additionalOptions, function(key, val) {
+                    options[key] = val;
+                });
+            }
+
+            return new qq.UploadHandler(options, namespace);
+        },
+
+        _createDeleteHandler: function() {
+            var self = this;
+
+            return new qq.DeleteFileAjaxRequester({
+                method: this._options.deleteFile.method.toUpperCase(),
+                maxConnections: this._options.maxConnections,
+                uuidParamName: this._options.request.uuidName,
+                customHeaders: this._options.deleteFile.customHeaders,
+                paramsStore: this._deleteFileParamsStore,
+                endpointStore: this._deleteFileEndpointStore,
+                demoMode: this._options.demoMode,
+                cors: this._options.cors,
+                log: qq.bind(self.log, self),
+                onDelete: function(id) {
+                    self._onDelete(id);
+                    self._options.callbacks.onDelete(id);
+                },
+                onDeleteComplete: function(id, xhrOrXdr, isError) {
+                    self._onDeleteComplete(id, xhrOrXdr, isError);
+                    self._options.callbacks.onDeleteComplete(id, xhrOrXdr, isError);
+                }
+
+            });
+        },
+
+        _createPasteHandler: function() {
+            var self = this;
+
+            return new qq.PasteSupport({
+                targetElement: this._options.paste.targetElement,
+                callbacks: {
+                    log: qq.bind(self.log, self),
+                    pasteReceived: function(blob) {
+                        self._handleCheckedCallback({
+                            name: "onPasteReceived",
+                            callback: qq.bind(self._options.callbacks.onPasteReceived, self, blob),
+                            onSuccess: qq.bind(self._handlePasteSuccess, self, blob),
+                            identifier: "pasted image"
+                        });
+                    }
+                }
+            });
+        },
+
+        _createUploadDataTracker: function() {
+            var self = this;
+
+            return new qq.UploadData({
+                getName: function(id) {
+                    return self.getName(id);
+                },
+                getUuid: function(id) {
+                    return self.getUuid(id);
+                },
+                getSize: function(id) {
+                    return self.getSize(id);
+                },
+                onStatusChange: function(id, oldStatus, newStatus) {
+                    self._onUploadStatusChange(id, oldStatus, newStatus);
+                    self._options.callbacks.onStatusChange(id, oldStatus, newStatus);
+                }
+            });
+        },
+
+        _onUploadStatusChange: function(id, oldStatus, newStatus) {
+            // Make sure a "queued" retry attempt is canceled if the upload has been paused
+            if (newStatus === qq.status.PAUSED) {
+                clearTimeout(this._retryTimeouts[id]);
+            }
+        },
+
+        _handlePasteSuccess: function(blob, extSuppliedName) {
+            var extension = blob.type.split("/")[1],
+                name = extSuppliedName;
+
+            /*jshint eqeqeq: true, eqnull: true*/
+            if (name == null) {
+                name = this._options.paste.defaultName;
+            }
+
+            name += "." + extension;
+
+            this.addBlobs({
+                name: name,
+                blob: blob
+            });
+        },
+
+        _preventLeaveInProgress: function(){
+            var self = this;
+
+            this._disposeSupport.attach(window, "beforeunload", function(e){
+                if (self.getInProgress()) {
+                    e = e || window.event;
+                    // for ie, ff
+                    e.returnValue = self._options.messages.onLeave;
+                    // for webkit
+                    return self._options.messages.onLeave;
+                }
+            });
+        },
+
+        _onSubmit: function(id, name) {
+            //nothing to do yet in core uploader
+        },
+
+        _onProgress: function(id, name, loaded, total) {
+            //nothing to do yet in core uploader
+        },
+
+        _onComplete: function(id, name, result, xhr) {
+            if (!result.success) {
+                this._netUploadedOrQueued--;
+                this._uploadData.setStatus(id, qq.status.UPLOAD_FAILED);
+            }
+            else {
+                if (result.thumbnailUrl) {
+                    this._thumbnailUrls[id] = result.thumbnailUrl;
+                }
+
+                this._netUploaded++;
+                this._uploadData.setStatus(id, qq.status.UPLOAD_SUCCESSFUL);
+            }
+
+            this._maybeParseAndSendUploadError(id, name, result, xhr);
+
+            return result.success ? true : false;
+        },
+
+        _onCancel: function(id, name) {
+            this._netUploadedOrQueued--;
+
+            clearTimeout(this._retryTimeouts[id]);
+
+            var storedItemIndex = qq.indexOf(this._storedIds, id);
+            if (!this._options.autoUpload && storedItemIndex >= 0) {
+                this._storedIds.splice(storedItemIndex, 1);
+            }
+
+            this._uploadData.setStatus(id, qq.status.CANCELED);
+        },
+
+        _isDeletePossible: function() {
+            if (!qq.DeleteFileAjaxRequester || !this._options.deleteFile.enabled) {
+                return false;
+            }
+
+            if (this._options.cors.expected) {
+                if (qq.supportedFeatures.deleteFileCorsXhr) {
+                    return true;
+                }
+
+                if (qq.supportedFeatures.deleteFileCorsXdr && this._options.cors.allowXdr) {
+                    return true;
+                }
+
+                return false;
+            }
+
+            return true;
+        },
+
+        _onSubmitDelete: function(id, onSuccessCallback, additionalMandatedParams) {
+            var uuid = this.getUuid(id),
+                adjustedOnSuccessCallback;
+
+            if (onSuccessCallback) {
+                adjustedOnSuccessCallback = qq.bind(onSuccessCallback, this, id, uuid, additionalMandatedParams);
+            }
+
+            if (this._isDeletePossible()) {
+                return this._handleCheckedCallback({
+                    name: "onSubmitDelete",
+                    callback: qq.bind(this._options.callbacks.onSubmitDelete, this, id),
+                    onSuccess: adjustedOnSuccessCallback ||
+                        qq.bind(this._deleteHandler.sendDelete, this, id, uuid, additionalMandatedParams),
+                    identifier: id
+                });
+            }
+            else {
+                this.log("Delete request ignored for ID " + id + ", delete feature is disabled or request not possible " +
+                    "due to CORS on a user agent that does not support pre-flighting.", "warn");
+                return false;
+            }
+        },
+
+        _onDelete: function(id) {
+            this._uploadData.setStatus(id, qq.status.DELETING);
+        },
+
+        _onDeleteComplete: function(id, xhrOrXdr, isError) {
+            var name = this.getName(id);
+
+            if (isError) {
+                this._uploadData.setStatus(id, qq.status.DELETE_FAILED);
+                this.log("Delete request for '" + name + "' has failed.", "error");
+
+                // For error reporing, we only have accesss to the response status if this is not
+                // an `XDomainRequest`.
+                if (xhrOrXdr.withCredentials === undefined) {
+                    this._options.callbacks.onError(id, name, "Delete request failed", xhrOrXdr);
+                }
+                else {
+                    this._options.callbacks.onError(id, name, "Delete request failed with response code " + xhrOrXdr.status, xhrOrXdr);
+                }
+            }
+            else {
+                this._netUploadedOrQueued--;
+                this._netUploaded--;
+                this._handler.expunge(id);
+                this._uploadData.setStatus(id, qq.status.DELETED);
+                this.log("Delete request for '" + name + "' has succeeded.");
+            }
+        },
+
+        _onUpload: function(id, name) {
+            this._uploadData.setStatus(id, qq.status.UPLOADING);
+        },
+
+        _onUploadChunk: function(id, chunkData) {
+            //nothing to do in the base uploader
+        },
+
+        _onInputChange: function(input) {
+            var fileIndex;
+
+            if (qq.supportedFeatures.ajaxUploading) {
+                for (fileIndex = 0; fileIndex < input.files.length; fileIndex++) {
+                    this._annotateWithButtonId(input.files[fileIndex], input);
+                }
+
+                this.addFiles(input.files);
+            }
+            // Android 2.3.x will fire `onchange` even if no file has been selected
+            else if (input.value.length > 0) {
+                this.addFiles(input);
+            }
+
+            qq.each(this._buttons, function(idx, button) {
+                button.reset();
+            });
+        },
+
+        _onBeforeAutoRetry: function(id, name) {
+            this.log("Waiting " + this._options.retry.autoAttemptDelay + " seconds before retrying " + name + "...");
+        },
+
+        /**
+         * Attempt to automatically retry a failed upload.
+         *
+         * @param id The file ID of the failed upload
+         * @param name The name of the file associated with the failed upload
+         * @param responseJSON Response from the server, parsed into a javascript object
+         * @param xhr Ajax transport used to send the failed request
+         * @param callback Optional callback to be invoked if a retry is prudent.
+         * Invoked in lieu of asking the upload handler to retry.
+         * @returns {boolean} true if an auto-retry will occur
+         * @private
+         */
+        _onAutoRetry: function(id, name, responseJSON, xhr, callback) {
+            var self = this;
+
+            self._preventRetries[id] = responseJSON[self._options.retry.preventRetryResponseProperty];
+
+            if (self._shouldAutoRetry(id, name, responseJSON)) {
+                self._maybeParseAndSendUploadError.apply(self, arguments);
+                self._options.callbacks.onAutoRetry(id, name, self._autoRetries[id] + 1);
+                self._onBeforeAutoRetry(id, name);
+
+                self._retryTimeouts[id] = setTimeout(function() {
+                    self.log("Retrying " + name + "...");
+                    self._autoRetries[id]++;
+                    self._uploadData.setStatus(id, qq.status.UPLOAD_RETRYING);
+
+                    if (callback) {
+                        callback(id);
+                    }
+                    else {
+                        self._handler.retry(id);
+                    }
+                }, self._options.retry.autoAttemptDelay * 1000);
+
+                return true;
+            }
+        },
+
+        _shouldAutoRetry: function(id, name, responseJSON) {
+            var uploadData = this._uploadData.retrieve({id: id});
+
+            /*jshint laxbreak: true */
+            if (!this._preventRetries[id]
+                && this._options.retry.enableAuto
+                && uploadData.status !== qq.status.PAUSED) {
+
+                if (this._autoRetries[id] === undefined) {
+                    this._autoRetries[id] = 0;
+                }
+
+                return this._autoRetries[id] < this._options.retry.maxAutoAttempts;
+            }
+
+            return false;
+        },
+
+        //return false if we should not attempt the requested retry
+        _onBeforeManualRetry: function(id) {
+            var itemLimit = this._options.validation.itemLimit;
+
+            if (this._preventRetries[id]) {
+                this.log("Retries are forbidden for id " + id, "warn");
+                return false;
+            }
+            else if (this._handler.isValid(id)) {
+                var fileName = this.getName(id);
+
+                if (this._options.callbacks.onManualRetry(id, fileName) === false) {
+                    return false;
+                }
+
+                if (itemLimit > 0 && this._netUploadedOrQueued+1 > itemLimit) {
+                    this._itemError("retryFailTooManyItems");
+                    return false;
+                }
+
+                this.log("Retrying upload for '" + fileName + "' (id: " + id + ")...");
+                return true;
+            }
+            else {
+                this.log("'" + id + "' is not a valid file ID", "error");
+                return false;
+            }
+        },
+
+        /**
+         * Conditionally orders a manual retry of a failed upload.
+         *
+         * @param id File ID of the failed upload
+         * @param callback Optional callback to invoke if a retry is prudent.
+         * In lieu of asking the upload handler to retry.
+         * @returns {boolean} true if a manual retry will occur
+         * @private
+         */
+        _manualRetry: function(id, callback) {
+            if (this._onBeforeManualRetry(id)) {
+                this._netUploadedOrQueued++;
+                this._uploadData.setStatus(id, qq.status.UPLOAD_RETRYING);
+
+                if (callback) {
+                    callback(id);
+                }
+                else {
+                    this._handler.retry(id);
+                }
+
+                return true;
+            }
+        },
+
+        _maybeParseAndSendUploadError: function(id, name, response, xhr) {
+            // Assuming no one will actually set the response code to something other than 200
+            // and still set 'success' to true...
+            if (!response.success){
+                if (xhr && xhr.status !== 200 && !response.error) {
+                    this._options.callbacks.onError(id, name, "XHR returned response code " + xhr.status, xhr);
+                }
+                else {
+                    var errorReason = response.error ? response.error : this._options.text.defaultResponseError;
+                    this._options.callbacks.onError(id, name, errorReason, xhr);
+                }
+            }
+        },
+
+        _prepareItemsForUpload: function(items, params, endpoint) {
+            var validationDescriptors = this._getValidationDescriptors(items),
+                buttonId = this._getButtonId(items[0].file),
+                button = this._getButton(buttonId);
+
+            this._handleCheckedCallback({
+                name: "onValidateBatch",
+                callback: qq.bind(this._options.callbacks.onValidateBatch, this, validationDescriptors, button),
+                onSuccess: qq.bind(this._onValidateBatchCallbackSuccess, this, validationDescriptors, items, params, endpoint, button),
+                onFailure: qq.bind(this._onValidateBatchCallbackFailure, this, items),
+                identifier: "batch validation"
+            });
+        },
+
+        _upload: function(id, params, endpoint) {
+            var name = this.getName(id);
+
+            if (params) {
+                this.setParams(params, id);
+            }
+
+            if (endpoint) {
+                this.setEndpoint(endpoint, id);
+            }
+
+            this._handleCheckedCallback({
+                name: "onSubmit",
+                callback: qq.bind(this._options.callbacks.onSubmit, this, id, name),
+                onSuccess: qq.bind(this._onSubmitCallbackSuccess, this, id, name),
+                onFailure: qq.bind(this._fileOrBlobRejected, this, id, name),
+                identifier: id
+            });
+        },
+
+        _onSubmitCallbackSuccess: function(id, name) {
+            var buttonId;
+
+            if (qq.supportedFeatures.ajaxUploading) {
+                buttonId = this._handler.getFile(id).qqButtonId;
+            }
+            else {
+                buttonId = this._getButtonId(this._handler.getInput(id));
+            }
+
+            if (buttonId) {
+                this._buttonIdsForFileIds[id] = buttonId;
+            }
+
+            this._onSubmit.apply(this, arguments);
+            this._uploadData.setStatus(id, qq.status.SUBMITTED);
+            this._onSubmitted.apply(this, arguments);
+            this._options.callbacks.onSubmitted.apply(this, arguments);
+
+            if (this._options.autoUpload) {
+                if (!this._handler.upload(id)) {
+                    this._uploadData.setStatus(id, qq.status.QUEUED);
+                }
+            }
+            else {
+                this._storeForLater(id);
+            }
+        },
+
+        _onSubmitted: function(id) {
+            //nothing to do in the base uploader
+        },
+
+        _storeForLater: function(id) {
+            this._storedIds.push(id);
+        },
+
+        _onValidateBatchCallbackSuccess: function(validationDescriptors, items, params, endpoint, button) {
+            var errorMessage,
+                itemLimit = this._options.validation.itemLimit,
+                proposedNetFilesUploadedOrQueued = this._netUploadedOrQueued;
+
+            if (itemLimit === 0 || proposedNetFilesUploadedOrQueued <= itemLimit) {
+                if (items.length > 0) {
+                    this._handleCheckedCallback({
+                        name: "onValidate",
+                        callback: qq.bind(this._options.callbacks.onValidate, this, validationDescriptors[0], button),
+                        onSuccess: qq.bind(this._onValidateCallbackSuccess, this, items, 0, params, endpoint),
+                        onFailure: qq.bind(this._onValidateCallbackFailure, this, items, 0, params, endpoint),
+                        identifier: "Item '" + items[0].file.name + "', size: " + items[0].file.size
+                    });
+                }
+                else {
+                    this._itemError("noFilesError");
+                }
+            }
+            else {
+                this._onValidateBatchCallbackFailure(items);
+                errorMessage = this._options.messages.tooManyItemsError
+                    .replace(/\{netItems\}/g, proposedNetFilesUploadedOrQueued)
+                    .replace(/\{itemLimit\}/g, itemLimit);
+                this._batchError(errorMessage);
+            }
+        },
+
+        _onValidateBatchCallbackFailure: function(fileWrappers) {
+            var self = this;
+
+            qq.each(fileWrappers, function(idx, fileWrapper) {
+                self._fileOrBlobRejected(fileWrapper.id);
+            });
+        },
+
+        _onValidateCallbackSuccess: function(items, index, params, endpoint) {
+            var self = this,
+                nextIndex = index+1,
+                validationDescriptor = this._getValidationDescriptor(items[index].file);
+
+            this._validateFileOrBlobData(items[index], validationDescriptor)
+                .then(
+                    function() {
+                        self._upload(items[index].id, params, endpoint);
+                        self._maybeProcessNextItemAfterOnValidateCallback(true, items, nextIndex, params, endpoint);
+                    },
+                    function() {
+                        self._maybeProcessNextItemAfterOnValidateCallback(false, items, nextIndex, params, endpoint);
+                    }
+                );
+        },
+
+        _onValidateCallbackFailure: function(items, index, params, endpoint) {
+            var nextIndex = index+ 1;
+
+            this._fileOrBlobRejected(items[0].id, items[0].file.name);
+
+            this._maybeProcessNextItemAfterOnValidateCallback(false, items, nextIndex, params, endpoint);
+        },
+
+        _maybeProcessNextItemAfterOnValidateCallback: function(validItem, items, index, params, endpoint) {
+            var self = this;
+
+            if (items.length > index) {
+                if (validItem || !this._options.validation.stopOnFirstInvalidFile) {
+                    //use setTimeout to prevent a stack overflow with a large number of files in the batch & non-promissory callbacks
+                    setTimeout(function() {
+                        var validationDescriptor = self._getValidationDescriptor(items[index].file);
+
+                        self._handleCheckedCallback({
+                            name: "onValidate",
+                            callback: qq.bind(self._options.callbacks.onValidate, self, items[index].file),
+                            onSuccess: qq.bind(self._onValidateCallbackSuccess, self, items, index, params, endpoint),
+                            onFailure: qq.bind(self._onValidateCallbackFailure, self, items, index, params, endpoint),
+                            identifier: "Item '" + validationDescriptor.name + "', size: " + validationDescriptor.size
+                        });
+                    }, 0);
+                }
+                else if (!validItem) {
+                    for (; index < items.length; index++) {
+                        self._fileOrBlobRejected(items[index].id);
+                    }
+                }
+            }
+        },
+
+        /**
+         * Performs some internal validation checks on an item, defined in the `validation` option.
+         *
+         * @param fileWrapper Wrapper containing a `file` along with an `id`
+         * @param validationDescriptor Normalized information about the item (`size`, `name`).
+         * @returns qq.Promise with appropriate callbacks invoked depending on the validity of the file
+         * @private
+         */
+        _validateFileOrBlobData: function(fileWrapper, validationDescriptor) {
+            var self = this,
+                file = fileWrapper.file,
+                name = validationDescriptor.name,
+                size = validationDescriptor.size,
+                buttonId = this._getButtonId(file),
+                validationBase = this._getValidationBase(buttonId),
+                validityChecker = new qq.Promise();
+
+            validityChecker.then(
+                function() {},
+                function() {
+                    self._fileOrBlobRejected(fileWrapper.id, name);
+                });
+
+            if (qq.isFileOrInput(file) && !this._isAllowedExtension(validationBase.allowedExtensions, name)) {
+                this._itemError("typeError", name, file);
+                return validityChecker.failure();
+            }
+
+            if (size === 0) {
+                this._itemError("emptyError", name, file);
+                return validityChecker.failure();
+            }
+
+            if (size && validationBase.sizeLimit && size > validationBase.sizeLimit) {
+                this._itemError("sizeError", name, file);
+                return validityChecker.failure();
+            }
+
+            if (size && size < validationBase.minSizeLimit) {
+                this._itemError("minSizeError", name, file);
+                return validityChecker.failure();
+            }
+
+            if (qq.ImageValidation && qq.supportedFeatures.imagePreviews && qq.isFile(file)) {
+                new qq.ImageValidation(file, qq.bind(self.log, self)).validate(validationBase.image).then(
+                    validityChecker.success,
+                    function(errorCode) {
+                        self._itemError(errorCode + "ImageError", name, file);
+                        validityChecker.failure();
+                    }
+                );
+            }
+            else {
+                validityChecker.success();
+            }
+
+            return validityChecker;
+        },
+
+        _fileOrBlobRejected: function(id) {
+            this._netUploadedOrQueued--;
+            this._uploadData.setStatus(id, qq.status.REJECTED);
+        },
+
+        /**
+         * Constructs and returns a message that describes an item/file error.  Also calls `onError` callback.
+         *
+         * @param code REQUIRED - a code that corresponds to a stock message describing this type of error
+         * @param maybeNameOrNames names of the items that have failed, if applicable
+         * @param item `File`, `Blob`, or `<input type="file">`
+         * @private
+         */
+        _itemError: function(code, maybeNameOrNames, item) {
+            var message = this._options.messages[code],
+                allowedExtensions = [],
+                names = [].concat(maybeNameOrNames),
+                name = names[0],
+                buttonId = this._getButtonId(item),
+                validationBase = this._getValidationBase(buttonId),
+                extensionsForMessage, placeholderMatch;
+
+            function r(name, replacement){ message = message.replace(name, replacement); }
+
+            qq.each(validationBase.allowedExtensions, function(idx, allowedExtension) {
+                    /**
+                     * If an argument is not a string, ignore it.  Added when a possible issue with MooTools hijacking the
+                     * `allowedExtensions` array was discovered.  See case #735 in the issue tracker for more details.
+                     */
+                if (qq.isString(allowedExtension)) {
+                    allowedExtensions.push(allowedExtension);
+                }
+            });
+
+            extensionsForMessage = allowedExtensions.join(", ").toLowerCase();
+
+            r("{file}", this._options.formatFileName(name));
+            r("{extensions}", extensionsForMessage);
+            r("{sizeLimit}", this._formatSize(validationBase.sizeLimit));
+            r("{minSizeLimit}", this._formatSize(validationBase.minSizeLimit));
+
+            placeholderMatch = message.match(/(\{\w+\})/g);
+            if (placeholderMatch !== null) {
+                qq.each(placeholderMatch, function(idx, placeholder) {
+                    r(placeholder, names[idx]);
+                });
+            }
+
+            this._options.callbacks.onError(null, name, message, undefined);
+
+            return message;
+        },
+
+        _batchError: function(message) {
+            this._options.callbacks.onError(null, null, message, undefined);
+        },
+
+        _isAllowedExtension: function(allowed, fileName) {
+            var valid = false;
+
+            if (!allowed.length) {
+                return true;
+            }
+
+            qq.each(allowed, function(idx, allowedExt) {
+                /**
+                 * If an argument is not a string, ignore it.  Added when a possible issue with MooTools hijacking the
+                 * `allowedExtensions` array was discovered.  See case #735 in the issue tracker for more details.
+                 */
+                if (qq.isString(allowedExt)) {
+                    /*jshint eqeqeq: true, eqnull: true*/
+                    var extRegex = new RegExp("\\." + allowedExt + "$", "i");
+
+                    if (fileName.match(extRegex) != null) {
+                        valid = true;
+                        return false;
+                    }
+                }
+            });
+
+            return valid;
+        },
+
+        _formatSize: function(bytes){
+            var i = -1;
+            do {
+                bytes = bytes / 1000;
+                i++;
+            } while (bytes > 999);
+
+            return Math.max(bytes, 0.1).toFixed(1) + this._options.text.sizeSymbols[i];
+        },
+
+        _wrapCallbacks: function() {
+            var self, safeCallback;
+
+            self = this;
+
+            safeCallback = function(name, callback, args) {
+                var errorMsg;
+
+                try {
+                    return callback.apply(self, args);
+                }
+                catch (exception) {
+                    errorMsg = exception.message || exception.toString();
+                    self.log("Caught exception in '" + name + "' callback - " + errorMsg, "error");
+                }
+            };
+
+            /* jshint forin: false, loopfunc: true */
+            for (var prop in this._options.callbacks) {
+                (function() {
+                    var callbackName, callbackFunc;
+                    callbackName = prop;
+                    callbackFunc = self._options.callbacks[callbackName];
+                    self._options.callbacks[callbackName] = function() {
+                        return safeCallback(callbackName, callbackFunc, arguments);
+                    };
+                }());
+            }
+        },
+
+        _parseFileOrBlobDataName: function(fileOrBlobData) {
+            var name;
+
+            if (qq.isFileOrInput(fileOrBlobData)) {
+                if (fileOrBlobData.value) {
+                    // it is a file input
+                    // get input value and remove path to normalize
+                    name = fileOrBlobData.value.replace(/.*(\/|\\)/, "");
+                } else {
+                    // fix missing properties in Safari 4 and firefox 11.0a2
+                    name = (fileOrBlobData.fileName !== null && fileOrBlobData.fileName !== undefined) ? fileOrBlobData.fileName : fileOrBlobData.name;
+                }
+            }
+            else {
+                name = fileOrBlobData.name;
+            }
+
+            return name;
+        },
+
+        _parseFileOrBlobDataSize: function(fileOrBlobData) {
+            var size;
+
+            if (qq.isFileOrInput(fileOrBlobData)) {
+                if (fileOrBlobData.value === undefined) {
+                    // fix missing properties in Safari 4 and firefox 11.0a2
+                    size = (fileOrBlobData.fileSize !== null && fileOrBlobData.fileSize !== undefined) ? fileOrBlobData.fileSize : fileOrBlobData.size;
+                }
+            }
+            else {
+                size = fileOrBlobData.blob.size;
+            }
+
+            return size;
+        },
+
+        _getValidationDescriptor: function(fileOrBlobData) {
+            var fileDescriptor = {},
+                name = this._parseFileOrBlobDataName(fileOrBlobData),
+                size = this._parseFileOrBlobDataSize(fileOrBlobData);
+
+            fileDescriptor.name = name;
+            if (size !== undefined) {
+                fileDescriptor.size = size;
+            }
+
+            return fileDescriptor;
+        },
+
+        _getValidationDescriptors: function(fileWrappers) {
+            var self = this,
+                fileDescriptors = [];
+
+            qq.each(fileWrappers, function(idx, fileWrapper) {
+                fileDescriptors.push(self._getValidationDescriptor(fileWrapper.file));
+            });
+
+            return fileDescriptors;
+        },
+
+        _createParamsStore: function(type) {
+            var paramsStore = {},
+                self = this;
+
+            return {
+                setParams: function(params, id) {
+                    var paramsCopy = {};
+                    qq.extend(paramsCopy, params);
+                    paramsStore[id] = paramsCopy;
+                },
+
+                getParams: function(id) {
+                    /*jshint eqeqeq: true, eqnull: true*/
+                    var paramsCopy = {};
+
+                    if (id != null && paramsStore[id]) {
+                        qq.extend(paramsCopy, paramsStore[id]);
+                    }
+                    else {
+                        qq.extend(paramsCopy, self._options[type].params);
+                    }
+
+                    return paramsCopy;
+                },
+
+                remove: function(fileId) {
+                    return delete paramsStore[fileId];
+                },
+
+                reset: function() {
+                    paramsStore = {};
+                }
+            };
+        },
+
+        _createEndpointStore: function(type) {
+            var endpointStore = {},
+            self = this;
+
+            return {
+                setEndpoint: function(endpoint, id) {
+                    endpointStore[id] = endpoint;
+                },
+
+                getEndpoint: function(id) {
+                    /*jshint eqeqeq: true, eqnull: true*/
+                    if (id != null && endpointStore[id]) {
+                        return endpointStore[id];
+                    }
+
+                    return self._options[type].endpoint;
+                },
+
+                remove: function(fileId) {
+                    return delete endpointStore[fileId];
+                },
+
+                reset: function() {
+                    endpointStore = {};
+                }
+            };
+        },
+
+        // Allows camera access on either the default or an extra button for iOS devices.
+        _handleCameraAccess: function() {
+            if (this._options.camera.ios && qq.ios()) {
+                var acceptIosCamera = "image/*;capture=camera",
+                    button = this._options.camera.button,
+                    buttonId = button ? this._getButtonId(button) : this._defaultButtonId,
+                    optionRoot = this._options;
+
+                // If we are not targeting the default button, it is an "extra" button
+                if (buttonId && buttonId !== this._defaultButtonId) {
+                    optionRoot = this._extraButtonSpecs[buttonId];
+                }
+
+                // Camera access won't work in iOS if the `multiple` attribute is present on the file input
+                optionRoot.multiple = false;
+
+                // update the options
+                if (optionRoot.validation.acceptFiles === null) {
+                    optionRoot.validation.acceptFiles = acceptIosCamera;
+                }
+                else {
+                    optionRoot.validation.acceptFiles += "," + acceptIosCamera;
+                }
+
+                // update the already-created button
+                qq.each(this._buttons, function(idx, button) {
+                    if (button.getButtonId() === buttonId) {
+                        button.setMultiple(optionRoot.multiple);
+                        button.setAcceptFiles(optionRoot.acceptFiles);
+
+                        return false;
+                    }
+                });
+            }
+        },
+
+        // Get the validation options for this button.  Could be the default validation option
+        // or a specific one assigned to this particular button.
+        _getValidationBase: function(buttonId) {
+            var extraButtonSpec = this._extraButtonSpecs[buttonId];
+
+            return extraButtonSpec ? extraButtonSpec.validation : this._options.validation;
+
+        }
+    };
+}());
+
+/*globals qq*/
+(function(){
+    "use strict";
+
+    qq.FineUploaderBasic = function(o) {
+        // These options define FineUploaderBasic mode.
+        this._options = {
+            debug: false,
+            button: null,
+            multiple: true,
+            maxConnections: 3,
+            disableCancelForFormUploads: false,
+            autoUpload: true,
+
+            request: {
+                endpoint: "/server/upload",
+                params: {},
+                paramsInBody: true,
+                customHeaders: {},
+                forceMultipart: true,
+                inputName: "qqfile",
+                uuidName: "qquuid",
+                totalFileSizeName: "qqtotalfilesize",
+                filenameParam: "qqfilename"
+            },
+
+            validation: {
+                allowedExtensions: [],
+                sizeLimit: 0,
+                minSizeLimit: 0,
+                itemLimit: 0,
+                stopOnFirstInvalidFile: true,
+                acceptFiles: null,
+                image: {
+                    maxHeight: 0,
+                    maxWidth: 0,
+                    minHeight: 0,
+                    minWidth: 0
+                }
+            },
+
+            callbacks: {
+                onSubmit: function(id, name){},
+                onSubmitted: function(id, name){},
+                onComplete: function(id, name, responseJSON, maybeXhr){},
+                onCancel: function(id, name){},
+                onUpload: function(id, name){},
+                onUploadChunk: function(id, name, chunkData){},
+                onUploadChunkSuccess: function(id, chunkData, responseJSON, xhr){},
+                onResume: function(id, fileName, chunkData){},
+                onProgress: function(id, name, loaded, total){},
+                onError: function(id, name, reason, maybeXhrOrXdr) {},
+                onAutoRetry: function(id, name, attemptNumber) {},
+                onManualRetry: function(id, name) {},
+                onValidateBatch: function(fileOrBlobData) {},
+                onValidate: function(fileOrBlobData) {},
+                onSubmitDelete: function(id) {},
+                onDelete: function(id){},
+                onDeleteComplete: function(id, xhrOrXdr, isError){},
+                onPasteReceived: function(blob) {},
+                onStatusChange: function(id, oldStatus, newStatus) {},
+                onSessionRequestComplete: function(response, success, xhrOrXdr) {}
+            },
+
+            messages: {
+                typeError: "{file} has an invalid extension. Valid extension(s): {extensions}.",
+                sizeError: "{file} is too large, maximum file size is {sizeLimit}.",
+                minSizeError: "{file} is too small, minimum file size is {minSizeLimit}.",
+                emptyError: "{file} is empty, please select files again without it.",
+                noFilesError: "No files to upload.",
+                tooManyItemsError: "Too many items ({netItems}) would be uploaded.  Item limit is {itemLimit}.",
+                maxHeightImageError: "Image is too tall.",
+                maxWidthImageError: "Image is too wide.",
+                minHeightImageError: "Image is not tall enough.",
+                minWidthImageError: "Image is not wide enough.",
+                retryFailTooManyItems: "Retry failed - you have reached your file limit.",
+                onLeave: "The files are being uploaded, if you leave now the upload will be canceled."
+            },
+
+            retry: {
+                enableAuto: false,
+                maxAutoAttempts: 3,
+                autoAttemptDelay: 5,
+                preventRetryResponseProperty: "preventRetry"
+            },
+
+            classes: {
+                buttonHover: "qq-upload-button-hover",
+                buttonFocus: "qq-upload-button-focus"
+            },
+
+            chunking: {
+                enabled: false,
+                partSize: 2000000,
+                paramNames: {
+                    partIndex: "qqpartindex",
+                    partByteOffset: "qqpartbyteoffset",
+                    chunkSize: "qqchunksize",
+                    totalFileSize: "qqtotalfilesize",
+                    totalParts: "qqtotalparts"
+                }
+            },
+
+            resume: {
+                enabled: false,
+                id: null,
+                cookiesExpireIn: 7, //days
+                paramNames: {
+                    resuming: "qqresume"
+                }
+            },
+
+            formatFileName: function(fileOrBlobName) {
+                if (fileOrBlobName !== undefined && fileOrBlobName.length > 33) {
+                    fileOrBlobName = fileOrBlobName.slice(0, 19) + "..." + fileOrBlobName.slice(-14);
+                }
+                return fileOrBlobName;
+            },
+
+            text: {
+                defaultResponseError: "Upload failure reason unknown",
+                sizeSymbols: ["kB", "MB", "GB", "TB", "PB", "EB"]
+            },
+
+            deleteFile : {
+                enabled: false,
+                method: "DELETE",
+                endpoint: "/server/upload",
+                customHeaders: {},
+                params: {}
+            },
+
+            cors: {
+                expected: false,
+                sendCredentials: false,
+                allowXdr: false
+            },
+
+            blobs: {
+                defaultName: "misc_data"
+            },
+
+            paste: {
+                targetElement: null,
+                defaultName: "pasted_image"
+            },
+
+            camera: {
+                ios: false,
+
+                // if ios is true: button is null means target the default button, otherwise target the button specified
+                button: null
+            },
+
+            // This refers to additional upload buttons to be handled by Fine Uploader.
+            // Each element is an object, containing `element` as the only required
+            // property.  The `element` must be a container that will ultimately
+            // contain an invisible `<input type="file">` created by Fine Uploader.
+            // Optional properties of each object include `multiple`, `validation`,
+            // and `folders`.
+            extraButtons: [],
+
+            // Depends on the session module.  Used to query the server for an initial file list
+            // during initialization and optionally after a `reset`.
+            session: {
+                endpoint: null,
+                params: {},
+                customHeaders: {},
+                refreshOnReset: true
+            }
+        };
+
+        // Replace any default options with user defined ones
+        qq.extend(this._options, o, true);
+
+        this._buttons = [];
+        this._extraButtonSpecs = {};
+        this._buttonIdsForFileIds = [];
+
+        this._wrapCallbacks();
+        this._disposeSupport =  new qq.DisposeSupport();
+
+        this._storedIds = [];
+        this._autoRetries = [];
+        this._retryTimeouts = [];
+        this._preventRetries = [];
+        this._thumbnailUrls = [];
+
+        this._netUploadedOrQueued = 0;
+        this._netUploaded = 0;
+        this._uploadData = this._createUploadDataTracker();
+
+        this._paramsStore = this._createParamsStore("request");
+        this._deleteFileParamsStore = this._createParamsStore("deleteFile");
+
+        this._endpointStore = this._createEndpointStore("request");
+        this._deleteFileEndpointStore = this._createEndpointStore("deleteFile");
+
+        this._handler = this._createUploadHandler();
+
+        this._deleteHandler = qq.DeleteFileAjaxRequester && this._createDeleteHandler();
+
+        if (this._options.button) {
+            this._defaultButtonId = this._createUploadButton({element: this._options.button}).getButtonId();
+        }
+
+        this._generateExtraButtonSpecs();
+
+        this._handleCameraAccess();
+
+        if (this._options.paste.targetElement) {
+            if (qq.PasteSupport) {
+                this._pasteHandler = this._createPasteHandler();
+            }
+            else {
+                qq.log("Paste support module not found", "info");
+            }
+        }
+
+        this._preventLeaveInProgress();
+
+        this._imageGenerator = qq.ImageGenerator && new qq.ImageGenerator(qq.bind(this.log, this));
+        this._refreshSessionData();
+    };
+
+    // Define the private & public API methods.
+    qq.FineUploaderBasic.prototype = qq.basePublicApi;
+    qq.extend(qq.FineUploaderBasic.prototype, qq.basePrivateApi);
+}());
+
+/*globals qq, XDomainRequest*/
+/** Generic class for sending non-upload ajax requests and handling the associated responses **/
+qq.AjaxRequester = function (o) {
+    "use strict";
+
+    var log, shouldParamsBeInQueryString,
+        queue = [],
+        requestData = [],
+        options = {
+            validMethods: ["POST"],
+            method: "POST",
+            contentType: "application/x-www-form-urlencoded",
+            maxConnections: 3,
+            customHeaders: {},
+            endpointStore: {},
+            paramsStore: {},
+            mandatedParams: {},
+            allowXRequestedWithAndCacheControl: true,
+            successfulResponseCodes: {
+                "DELETE": [200, 202, 204],
+                "POST": [200, 204],
+                "GET": [200]
+            },
+            cors: {
+                expected: false,
+                sendCredentials: false
+            },
+            log: function (str, level) {},
+            onSend: function (id) {},
+            onComplete: function (id, xhrOrXdr, isError) {}
+        };
+
+    qq.extend(options, o);
+    log = options.log;
+
+    if (qq.indexOf(options.validMethods, options.method) < 0) {
+        throw new Error("'" + options.method + "' is not a supported method for this type of request!");
+    }
+
+    // [Simple methods](http://www.w3.org/TR/cors/#simple-method)
+    // are defined by the W3C in the CORS spec as a list of methods that, in part,
+    // make a CORS request eligible to be exempt from preflighting.
+    function isSimpleMethod() {
+        return qq.indexOf(["GET", "POST", "HEAD"], options.method) >= 0;
+    }
+
+    // [Simple headers](http://www.w3.org/TR/cors/#simple-header)
+    // are defined by the W3C in the CORS spec as a list of headers that, in part,
+    // make a CORS request eligible to be exempt from preflighting.
+    function containsNonSimpleHeaders(headers) {
+        var containsNonSimple = false;
+
+        qq.each(containsNonSimple, function(idx, header) {
+            if (qq.indexOf(["Accept", "Accept-Language", "Content-Language", "Content-Type"], header) < 0) {
+                containsNonSimple = true;
+                return false;
+            }
+        });
+
+        return containsNonSimple;
+    }
+
+    function isXdr(xhr) {
+        //The `withCredentials` test is a commonly accepted way to determine if XHR supports CORS.
+        return options.cors.expected && xhr.withCredentials === undefined;
+    }
+
+    // Returns either a new `XMLHttpRequest` or `XDomainRequest` instance.
+    function getCorsAjaxTransport() {
+        var xhrOrXdr;
+
+        if (window.XMLHttpRequest || window.ActiveXObject) {
+            xhrOrXdr = qq.createXhrInstance();
+
+            if (xhrOrXdr.withCredentials === undefined) {
+                xhrOrXdr = new XDomainRequest();
+            }
+        }
+
+        return xhrOrXdr;
+    }
+
+    // Returns either a new XHR/XDR instance, or an existing one for the associated `File` or `Blob`.
+    function getXhrOrXdr(id, dontCreateIfNotExist) {
+        var xhrOrXdr = requestData[id].xhr;
+
+        if (!xhrOrXdr && !dontCreateIfNotExist) {
+            if (options.cors.expected) {
+                xhrOrXdr = getCorsAjaxTransport();
+            }
+            else {
+                xhrOrXdr = qq.createXhrInstance();
+            }
+
+            requestData[id].xhr = xhrOrXdr;
+        }
+
+        return xhrOrXdr;
+    }
+
+    // Removes element from queue, sends next request
+    function dequeue(id) {
+        var i = qq.indexOf(queue, id),
+            max = options.maxConnections,
+            nextId;
+
+        delete requestData[id];
+        queue.splice(i, 1);
+
+        if (queue.length >= max && i < max) {
+            nextId = queue[max - 1];
+            sendRequest(nextId);
+        }
+    }
+
+    function onComplete(id, xdrError) {
+        var xhr = getXhrOrXdr(id),
+            method = options.method,
+            isError = xdrError === true;
+
+        dequeue(id);
+
+        if (isError) {
+            log(method + " request for " + id + " has failed", "error");
+        }
+        else if (!isXdr(xhr) && !isResponseSuccessful(xhr.status)) {
+            isError = true;
+            log(method + " request for " + id + " has failed - response code " + xhr.status, "error");
+        }
+
+        options.onComplete(id, xhr, isError);
+    }
+
+    function getParams(id) {
+        var onDemandParams = requestData[id].additionalParams,
+            mandatedParams = options.mandatedParams,
+            params;
+
+        if (options.paramsStore.getParams) {
+            params = options.paramsStore.getParams(id);
+        }
+
+        if (onDemandParams) {
+            qq.each(onDemandParams, function (name, val) {
+                params = params || {};
+                params[name] = val;
+            });
+        }
+
+        if (mandatedParams) {
+            qq.each(mandatedParams, function (name, val) {
+                params = params || {};
+                params[name] = val;
+            });
+        }
+
+        return params;
+    }
+
+    function sendRequest(id) {
+        var xhr = getXhrOrXdr(id),
+            method = options.method,
+            params = getParams(id),
+            payload = requestData[id].payload,
+            url;
+
+        options.onSend(id);
+
+        url = createUrl(id, params);
+
+        // XDR and XHR status detection APIs differ a bit.
+        if (isXdr(xhr)) {
+            xhr.onload = getXdrLoadHandler(id);
+            xhr.onerror = getXdrErrorHandler(id);
+        }
+        else {
+            xhr.onreadystatechange = getXhrReadyStateChangeHandler(id);
+        }
+
+        // The last parameter is assumed to be ignored if we are actually using `XDomainRequest`.
+        xhr.open(method, url, true);
+
+        // Instruct the transport to send cookies along with the CORS request,
+        // unless we are using `XDomainRequest`, which is not capable of this.
+        if (options.cors.expected && options.cors.sendCredentials && !isXdr(xhr)) {
+            xhr.withCredentials = true;
+        }
+
+        setHeaders(id);
+
+        log("Sending " + method + " request for " + id);
+
+        if (payload) {
+            xhr.send(payload);
+        }
+        else if (shouldParamsBeInQueryString || !params) {
+            xhr.send();
+        }
+        else if (params && options.contentType.toLowerCase().indexOf("application/x-www-form-urlencoded") >= 0) {
+            xhr.send(qq.obj2url(params, ""));
+        }
+        else if (params && options.contentType.toLowerCase().indexOf("application/json") >= 0) {
+            xhr.send(JSON.stringify(params));
+        }
+        else {
+            xhr.send(params);
+        }
+    }
+
+    function createUrl(id, params) {
+        var endpoint = options.endpointStore.getEndpoint(id),
+            addToPath = requestData[id].addToPath;
+
+        /*jshint -W116,-W041 */
+        if (addToPath != undefined) {
+            endpoint += "/" + addToPath;
+        }
+
+        if (shouldParamsBeInQueryString && params) {
+            return qq.obj2url(params, endpoint);
+        }
+        else {
+            return endpoint;
+        }
+    }
+
+    // Invoked by the UA to indicate a number of possible states that describe
+    // a live `XMLHttpRequest` transport.
+    function getXhrReadyStateChangeHandler(id) {
+        return function () {
+            if (getXhrOrXdr(id).readyState === 4) {
+                onComplete(id);
+            }
+        };
+    }
+
+    // This will be called by IE to indicate **success** for an associated
+    // `XDomainRequest` transported request.
+    function getXdrLoadHandler(id) {
+        return function () {
+            onComplete(id);
+        };
+    }
+
+    // This will be called by IE to indicate **failure** for an associated
+    // `XDomainRequest` transported request.
+    function getXdrErrorHandler(id) {
+        return function () {
+            onComplete(id, true);
+        };
+    }
+
+    function setHeaders(id) {
+        var xhr = getXhrOrXdr(id),
+            customHeaders = options.customHeaders,
+            onDemandHeaders = requestData[id].additionalHeaders || {},
+            method = options.method,
+            allHeaders = {};
+
+        // If XDomainRequest is being used, we can't set headers, so just ignore this block.
+        if (!isXdr(xhr)) {
+            // Only attempt to add X-Requested-With & Cache-Control if permitted
+            if (options.allowXRequestedWithAndCacheControl) {
+                // Do not add X-Requested-With & Cache-Control if this is a cross-origin request
+                // OR the cross-origin request contains a non-simple method or header.
+                // This is done to ensure a preflight is not triggered exclusively based on the
+                // addition of these 2 non-simple headers.
+                if (!options.cors.expected || (!isSimpleMethod() || containsNonSimpleHeaders(customHeaders))) {
+                    xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+                    xhr.setRequestHeader("Cache-Control", "no-cache");
+                }
+            }
+
+            if (options.contentType && (method === "POST" || method === "PUT")) {
+                xhr.setRequestHeader("Content-Type", options.contentType);
+            }
+
+            qq.extend(allHeaders, customHeaders);
+            qq.extend(allHeaders, onDemandHeaders);
+
+            qq.each(allHeaders, function (name, val) {
+                xhr.setRequestHeader(name, val);
+            });
+        }
+    }
+
+    function isResponseSuccessful(responseCode) {
+        return qq.indexOf(options.successfulResponseCodes[options.method], responseCode) >= 0;
+    }
+
+    function prepareToSend(id, addToPath, additionalParams, additionalHeaders, payload) {
+        requestData[id] = {
+            addToPath: addToPath,
+            additionalParams: additionalParams,
+            additionalHeaders: additionalHeaders,
+            payload: payload
+        };
+
+        var len = queue.push(id);
+
+        // if too many active connections, wait...
+        if (len <= options.maxConnections) {
+            sendRequest(id);
+        }
+    }
+
+
+    shouldParamsBeInQueryString = options.method === "GET" || options.method === "DELETE";
+
+    qq.extend(this, {
+        // Start the process of sending the request.  The ID refers to the file associated with the request.
+        initTransport: function(id) {
+            var path, params, headers, payload;
+
+            return {
+                // Optionally specify the end of the endpoint path for the request.
+                withPath: function(appendToPath) {
+                    path = appendToPath;
+                    return this;
+                },
+
+                // Optionally specify additional parameters to send along with the request.
+                // These will be added to the query string for GET/DELETE requests or the payload
+                // for POST/PUT requests.  The Content-Type of the request will be used to determine
+                // how these parameters should be formatted as well.
+                withParams: function(additionalParams) {
+                    params = additionalParams;
+                    return this;
+                },
+
+                // Optionally specify additional headers to send along with the request.
+                withHeaders: function(additionalHeaders) {
+                    headers = additionalHeaders;
+                    return this;
+                },
+
+                // Optionally specify a payload/body for the request.
+                withPayload: function(thePayload) {
+                    payload = thePayload;
+                    return this;
+                },
+
+                // Send the constructed request.
+                send: function() {
+                    prepareToSend(id, path, params, headers, payload);
+                }
+            };
+        }
+    });
+};
+
+/*globals qq*/
+/**
+ * Base upload handler module.  Delegates to more specific handlers.
+ *
+ * @param o Options.  Passed along to the specific handler submodule as well.
+ * @param namespace [optional] Namespace for the specific handler.
+ */
+qq.UploadHandler = function(o, namespace) {
+    "use strict";
+
+    var queue = [],
+        options, log, handlerImpl;
+
+    // Default options, can be overridden by the user
+    options = {
+        debug: false,
+        forceMultipart: true,
+        paramsInBody: false,
+        paramsStore: {},
+        endpointStore: {},
+        filenameParam: "qqfilename",
+        cors: {
+            expected: false,
+            sendCredentials: false
+        },
+        maxConnections: 3, // maximum number of concurrent uploads
+        uuidName: "qquuid",
+        totalFileSizeName: "qqtotalfilesize",
+        chunking: {
+            enabled: false,
+            partSize: 2000000, //bytes
+            paramNames: {
+                partIndex: "qqpartindex",
+                partByteOffset: "qqpartbyteoffset",
+                chunkSize: "qqchunksize",
+                totalParts: "qqtotalparts",
+                filename: "qqfilename"
+            }
+        },
+        resume: {
+            enabled: false,
+            id: null,
+            cookiesExpireIn: 7, //days
+            paramNames: {
+                resuming: "qqresume"
+            }
+        },
+        log: function(str, level) {},
+        onProgress: function(id, fileName, loaded, total){},
+        onComplete: function(id, fileName, response, xhr){},
+        onCancel: function(id, fileName){},
+        onUpload: function(id, fileName){},
+        onUploadChunk: function(id, fileName, chunkData){},
+        onUploadChunkSuccess: function(id, chunkData, response, xhr){},
+        onAutoRetry: function(id, fileName, response, xhr){},
+        onResume: function(id, fileName, chunkData){},
+        onUuidChanged: function(id, newUuid){},
+        getName: function(id) {}
+
+    };
+    qq.extend(options, o);
+
+    log = options.log;
+
+    /**
+     * Removes element from queue, starts upload of next
+     */
+    function dequeue(id) {
+        var i = qq.indexOf(queue, id),
+            max = options.maxConnections,
+            nextId;
+
+        if (i >= 0) {
+            queue.splice(i, 1);
+
+            if (queue.length >= max && i < max){
+                nextId = queue[max-1];
+                handlerImpl.upload(nextId);
+            }
+        }
+    }
+
+    function cancelSuccess(id) {
+        log("Cancelling " + id);
+        options.paramsStore.remove(id);
+        dequeue(id);
+    }
+
+    function determineHandlerImpl() {
+        var handlerType = namespace ? qq[namespace] : qq,
+            handlerModuleSubtype = qq.supportedFeatures.ajaxUploading ? "Xhr" : "Form";
+
+        handlerImpl = new handlerType["UploadHandler" + handlerModuleSubtype](
+            options,
+            {onUploadComplete: dequeue, onUuidChanged: options.onUuidChanged,
+                getName: options.getName, getUuid: options.getUuid, getSize: options.getSize, log: log}
+        );
+    }
+
+
+    qq.extend(this, {
+        /**
+         * Adds file or file input to the queue
+         * @returns id
+         **/
+        add: function(id, file) {
+            return handlerImpl.add.apply(this, arguments);
+        },
+
+        /**
+         * Sends the file identified by id
+         */
+        upload: function(id) {
+            var len = queue.push(id);
+
+            // if too many active uploads, wait...
+            if (len <= options.maxConnections){
+                handlerImpl.upload(id);
+                return true;
+            }
+
+            return false;
+        },
+
+        retry: function(id) {
+            var i = qq.indexOf(queue, id);
+            if (i >= 0) {
+                return handlerImpl.upload(id, true);
+            }
+            else {
+                return this.upload(id);
+            }
+        },
+
+        /**
+         * Cancels file upload by id
+         */
+        cancel: function(id) {
+            var cancelRetVal = handlerImpl.cancel(id);
+
+            if (cancelRetVal instanceof qq.Promise) {
+                cancelRetVal.then(function() {
+                    cancelSuccess(id);
+                });
+            }
+            else if (cancelRetVal !== false) {
+                cancelSuccess(id);
+            }
+        },
+
+        /**
+         * Cancels all queued or in-progress uploads
+         */
+        cancelAll: function() {
+            var self = this,
+                queueCopy = [];
+
+            qq.extend(queueCopy, queue);
+            qq.each(queueCopy, function(idx, fileId) {
+                self.cancel(fileId);
+            });
+
+            queue = [];
+        },
+
+        getFile: function(id) {
+            if (handlerImpl.getFile) {
+                return handlerImpl.getFile(id);
+            }
+        },
+
+        getInput: function(id) {
+            if (handlerImpl.getInput) {
+                return handlerImpl.getInput(id);
+            }
+        },
+
+        reset: function() {
+            log("Resetting upload handler");
+            this.cancelAll();
+            queue = [];
+            handlerImpl.reset();
+        },
+
+        expunge: function(id) {
+            if (this.isValid(id)) {
+                return handlerImpl.expunge(id);
+            }
+        },
+
+        /**
+         * Determine if the file exists.
+         */
+        isValid: function(id) {
+            return handlerImpl.isValid(id);
+        },
+
+        getResumableFilesData: function() {
+            if (handlerImpl.getResumableFilesData) {
+                return handlerImpl.getResumableFilesData();
+            }
+            return [];
+        },
+
+        /**
+         * This may or may not be implemented, depending on the handler.  For handlers where a third-party ID is
+         * available (such as the "key" for Amazon S3), this will return that value.  Otherwise, the return value
+         * will be undefined.
+         *
+         * @param id Internal file ID
+         * @returns {*} Some identifier used by a 3rd-party service involved in the upload process
+         */
+        getThirdPartyFileId: function(id) {
+            if (handlerImpl.getThirdPartyFileId && this.isValid(id)) {
+                return handlerImpl.getThirdPartyFileId(id);
+            }
+        },
+
+        /**
+         * Attempts to pause the associated upload if the specific handler supports this and the file is "valid".
+         * @param id ID of the upload/file to pause
+         * @returns {boolean} true if the upload was paused
+         */
+        pause: function(id) {
+            if (handlerImpl.pause && this.isValid(id) && handlerImpl.pause(id)) {
+                dequeue(id);
+                return true;
+            }
+        }
+    });
+
+    determineHandlerImpl();
+};
+
+/* globals qq */
+/**
+ * Common APIs exposed to creators of upload via form/iframe handlers.  This is reused and possibly overridden
+ * in some cases by specific form upload handlers.
+ *
+ * @param internalApi Object that will be filled with internal API methods
+ * @param spec Options/static values used to configure this handler
+ * @param proxy Callbacks & methods used to query for or push out data/changes
+ * @constructor
+ */
+qq.UploadHandlerFormApi = function(internalApi, spec, proxy) {
+    "use strict";
+
+    var formHandlerInstanceId = qq.getUniqueId(),
+        onloadCallbacks = {},
+        detachLoadEvents = {},
+        postMessageCallbackTimers = {},
+        publicApi = this,
+        isCors = spec.isCors,
+        fileState = spec.fileState,
+        inputName = spec.inputName,
+        onCancel = proxy.onCancel,
+        onUuidChanged = proxy.onUuidChanged,
+        getName = proxy.getName,
+        getUuid = proxy.getUuid,
+        log = proxy.log,
+        corsMessageReceiver = new qq.WindowReceiveMessage({log: log});
+
+
+    /**
+     * Remove any trace of the file from the handler.
+     *
+     * @param id ID of the associated file
+     */
+    function expungeFile(id) {
+        delete detachLoadEvents[id];
+        delete fileState[id];
+
+        // If we are dealing with CORS, we might still be waiting for a response from a loaded iframe.
+        // In that case, terminate the timer waiting for a message from the loaded iframe
+        // and stop listening for any more messages coming from this iframe.
+        if (isCors) {
+            clearTimeout(postMessageCallbackTimers[id]);
+            delete postMessageCallbackTimers[id];
+            corsMessageReceiver.stopReceivingMessages(id);
+        }
+
+        var iframe = document.getElementById(internalApi.getIframeName(id));
+        if (iframe) {
+            // To cancel request set src to something else.  We use src="javascript:false;"
+            // because it doesn't trigger ie6 prompt on https
+            iframe.setAttribute("src", "java" + String.fromCharCode(115) + "cript:false;"); //deal with "JSLint: javascript URL" warning, which apparently cannot be turned off
+
+            qq(iframe).remove();
+        }
+    }
+
+    /**
+     * If we are in CORS mode, we must listen for messages (containing the server response) from the associated
+     * iframe, since we cannot directly parse the content of the iframe due to cross-origin restrictions.
+     *
+     * @param iframe Listen for messages on this iframe.
+     * @param callback Invoke this callback with the message from the iframe.
+     */
+    function registerPostMessageCallback(iframe, callback) {
+        var iframeName = iframe.id,
+            fileId = getFileIdForIframeName(iframeName),
+            uuid = getUuid(fileId);
+
+        onloadCallbacks[uuid] = callback;
+
+        // When the iframe has loaded (after the server responds to an upload request)
+        // declare the attempt a failure if we don't receive a valid message shortly after the response comes in.
+        detachLoadEvents[fileId] = qq(iframe).attach("load", function() {
+            if (fileState[fileId].input) {
+                log("Received iframe load event for CORS upload request (iframe name " + iframeName + ")");
+
+                postMessageCallbackTimers[iframeName] = setTimeout(function() {
+                    var errorMessage = "No valid message received from loaded iframe for iframe name " + iframeName;
+                    log(errorMessage, "error");
+                    callback({
+                        error: errorMessage
+                    });
+                }, 1000);
+            }
+        });
+
+        // Listen for messages coming from this iframe.  When a message has been received, cancel the timer
+        // that declares the upload a failure if a message is not received within a reasonable amount of time.
+        corsMessageReceiver.receiveMessage(iframeName, function(message) {
+            log("Received the following window message: '" + message + "'");
+            var fileId = getFileIdForIframeName(iframeName),
+                response = internalApi.parseJsonResponse(fileId, message),
+                uuid = response.uuid,
+                onloadCallback;
+
+            if (uuid && onloadCallbacks[uuid]) {
+                log("Handling response for iframe name " + iframeName);
+                clearTimeout(postMessageCallbackTimers[iframeName]);
+                delete postMessageCallbackTimers[iframeName];
+
+                internalApi.detachLoadEvent(iframeName);
+
+                onloadCallback = onloadCallbacks[uuid];
+
+                delete onloadCallbacks[uuid];
+                corsMessageReceiver.stopReceivingMessages(iframeName);
+                onloadCallback(response);
+            }
+            else if (!uuid) {
+                log("'" + message + "' does not contain a UUID - ignoring.");
+            }
+        });
+    }
+
+    /**
+     * Generates an iframe to be used as a target for upload-related form submits.  This also adds the iframe
+     * to the current `document`.  Note that the iframe is hidden from view.
+     *
+     * @param name Name of the iframe.
+     * @returns {HTMLIFrameElement} The created iframe
+     */
+    function initIframeForUpload(name) {
+        var iframe = qq.toElement("<iframe src='javascript:false;' name='" + name + "' />");
+
+        iframe.setAttribute("id", name);
+
+        iframe.style.display = "none";
+        document.body.appendChild(iframe);
+
+        return iframe;
+    }
+
+    /**
+     * @param iframeName `document`-unique Name of the associated iframe
+     * @returns {*} ID of the associated file
+     */
+    function getFileIdForIframeName(iframeName) {
+        return iframeName.split("_")[0];
+    }
+
+
+// INTERNAL API
+
+    qq.extend(internalApi, {
+        /**
+         * @param fileId ID of the associated file
+         * @returns {string} The `document`-unique name of the iframe
+         */
+        getIframeName: function(fileId) {
+            return fileId + "_" + formHandlerInstanceId;
+        },
+
+        /**
+         * Creates an iframe with a specific document-unique name.
+         *
+         * @param id ID of the associated file
+         * @returns {HTMLIFrameElement}
+         */
+        createIframe: function(id) {
+            var iframeName = internalApi.getIframeName(id);
+
+            return initIframeForUpload(iframeName);
+        },
+
+        /**
+         * @param id ID of the associated file
+         * @param innerHtmlOrMessage JSON message
+         * @returns {*} The parsed response, or an empty object if the response could not be parsed
+         */
+        parseJsonResponse: function(id, innerHtmlOrMessage) {
+            var response;
+
+            try {
+                response = qq.parseJson(innerHtmlOrMessage);
+
+                if (response.newUuid !== undefined) {
+                    onUuidChanged(id, response.newUuid);
+                }
+            }
+            catch(error) {
+                log("Error when attempting to parse iframe upload response (" + error.message + ")", "error");
+                response = {};
+            }
+
+            return response;
+        },
+
+        /**
+         * Generates a form element and appends it to the `document`.  When the form is submitted, a specific iframe is targeted.
+         * The name of the iframe is passed in as a property of the spec parameter, and must be unique in the `document`.  Note
+         * that the form is hidden from view.
+         *
+         * @param spec An object containing various properties to be used when constructing the form.  Required properties are
+         * currently: `method`, `endpoint`, `params`, `paramsInBody`, and `targetName`.
+         * @returns {HTMLFormElement} The created form
+         */
+        initFormForUpload: function(spec) {
+            var method = spec.method,
+                endpoint = spec.endpoint,
+                params = spec.params,
+                paramsInBody = spec.paramsInBody,
+                targetName = spec.targetName,
+                form = qq.toElement("<form method='" + method + "' enctype='multipart/form-data'></form>"),
+                url = endpoint;
+
+            if (paramsInBody) {
+                qq.obj2Inputs(params, form);
+            }
+            else {
+                url = qq.obj2url(params, endpoint);
+            }
+
+            form.setAttribute("action", url);
+            form.setAttribute("target", targetName);
+            form.style.display = "none";
+            document.body.appendChild(form);
+
+            return form;
+        },
+
+        /**
+         * This function either delegates to a more specific message handler if CORS is involved,
+         * or simply registers a callback when the iframe has been loaded that invokes the passed callback
+         * after determining if the content of the iframe is accessible.
+         *
+         * @param iframe Associated iframe
+         * @param callback Callback to invoke after we have determined if the iframe content is accessible.
+         */
+        attachLoadEvent: function(iframe, callback) {
+            /*jslint eqeq: true*/
+            var responseDescriptor;
+
+            if (isCors) {
+                registerPostMessageCallback(iframe, callback);
+            }
+            else {
+                detachLoadEvents[iframe.id] = qq(iframe).attach("load", function(){
+                    log("Received response for " + iframe.id);
+
+                    // when we remove iframe from dom
+                    // the request stops, but in IE load
+                    // event fires
+                    if (!iframe.parentNode){
+                        return;
+                    }
+
+                    try {
+                        // fixing Opera 10.53
+                        if (iframe.contentDocument &&
+                            iframe.contentDocument.body &&
+                            iframe.contentDocument.body.innerHTML == "false"){
+                            // In Opera event is fired second time
+                            // when body.innerHTML changed from false
+                            // to server response approx. after 1 sec
+                            // when we upload file with iframe
+                            return;
+                        }
+                    }
+                    catch (error) {
+                        //IE may throw an "access is denied" error when attempting to access contentDocument on the iframe in some cases
+                        log("Error when attempting to access iframe during handling of upload response (" + error.message + ")", "error");
+                        responseDescriptor = {success: false};
+                    }
+
+                    callback(responseDescriptor);
+                });
+            }
+        },
+
+        /**
+         * Called when we are no longer interested in being notified when an iframe has loaded.
+         *
+         * @param id Associated file ID
+         */
+        detachLoadEvent: function(id) {
+            if (detachLoadEvents[id] !== undefined) {
+                detachLoadEvents[id]();
+                delete detachLoadEvents[id];
+            }
+        }
+    });
+
+
+// PUBLIC API
+
+    qq.extend(this, {
+        add: function(id, fileInput) {
+            fileState[id] = {input: fileInput};
+
+            fileInput.setAttribute("name", inputName);
+
+            // remove file input from DOM
+            if (fileInput.parentNode){
+                qq(fileInput).remove();
+            }
+        },
+
+        getInput: function(id) {
+            return fileState[id].input;
+        },
+
+        isValid: function(id) {
+            return fileState[id] !== undefined &&
+                fileState[id].input !== undefined;
+        },
+
+        reset: function() {
+            fileState.length = 0;
+        },
+
+        expunge: function(id) {
+            return expungeFile(id);
+        },
+
+        cancel: function(id) {
+            var onCancelRetVal = onCancel(id, getName(id));
+
+            if (onCancelRetVal instanceof qq.Promise) {
+                return onCancelRetVal.then(function() {
+                    this.expunge(id);
+                });
+            }
+            else if (onCancelRetVal !== false) {
+                this.expunge(id);
+                return true;
+            }
+
+            return false;
+        },
+
+        upload: function(id) {
+            // implementation-specific
+        }
+    });
+};
+
+/* globals qq */
+/**
+ * Common API exposed to creators of XHR handlers.  This is reused and possibly overriding in some cases by specific
+ * XHR upload handlers.
+ *
+ * @param internalApi Object that will be filled with internal API methods
+ * @param spec Options/static values used to configure this handler
+ * @param proxy Callbacks & methods used to query for or push out data/changes
+ * @constructor
+ */
+qq.UploadHandlerXhrApi = function(internalApi, spec, proxy) {
+    "use strict";
+
+    var publicApi = this,
+        fileState = spec.fileState,
+        chunking = spec.chunking,
+        onUpload = proxy.onUpload,
+        onCancel = proxy.onCancel,
+        onUuidChanged = proxy.onUuidChanged,
+        getName = proxy.getName,
+        getSize = proxy.getSize,
+        log = proxy.log;
+
+
+    function getChunk(fileOrBlob, startByte, endByte) {
+        if (fileOrBlob.slice) {
+            return fileOrBlob.slice(startByte, endByte);
+        }
+        else if (fileOrBlob.mozSlice) {
+            return fileOrBlob.mozSlice(startByte, endByte);
+        }
+        else if (fileOrBlob.webkitSlice) {
+            return fileOrBlob.webkitSlice(startByte, endByte);
+        }
+    }
+
+    qq.extend(internalApi, {
+        /**
+         * Creates an XHR instance for this file and stores it in the fileState.
+         *
+         * @param id File ID
+         * @returns {XMLHttpRequest}
+         */
+        createXhr: function(id) {
+            var xhr = qq.createXhrInstance();
+
+            fileState[id].xhr = xhr;
+
+            return xhr;
+        },
+
+        /**
+         * @param id ID of the associated file
+         * @returns {number} Number of parts this file can be divided into, or undefined if chunking is not supported in this UA
+         */
+        getTotalChunks: function(id) {
+            if (chunking) {
+                var fileSize = getSize(id),
+                    chunkSize = chunking.partSize;
+
+                return Math.ceil(fileSize / chunkSize);
+            }
+        },
+
+        getChunkData: function(id, chunkIndex) {
+            var chunkSize = chunking.partSize,
+                fileSize = getSize(id),
+                fileOrBlob = publicApi.getFile(id),
+                startBytes = chunkSize * chunkIndex,
+                endBytes = startBytes+chunkSize >= fileSize ? fileSize : startBytes+chunkSize,
+                totalChunks = internalApi.getTotalChunks(id);
+
+            return {
+                part: chunkIndex,
+                start: startBytes,
+                end: endBytes,
+                count: totalChunks,
+                blob: getChunk(fileOrBlob, startBytes, endBytes),
+                size: endBytes - startBytes
+            };
+        },
+
+        getChunkDataForCallback: function(chunkData) {
+            return {
+                partIndex: chunkData.part,
+                startByte: chunkData.start + 1,
+                endByte: chunkData.end,
+                totalParts: chunkData.count
+            };
+        }
+    });
+
+    qq.extend(this, {
+        /**
+         * Adds File or Blob to the queue
+         **/
+        add: function(id, fileOrBlobData) {
+            if (qq.isFile(fileOrBlobData)) {
+                fileState[id] = {file: fileOrBlobData};
+            }
+            else if (qq.isBlob(fileOrBlobData.blob)) {
+                fileState[id] =  {blobData: fileOrBlobData};
+            }
+            else {
+                throw new Error("Passed obj is not a File or BlobData (in qq.UploadHandlerXhr)");
+            }
+        },
+
+        getFile: function(id) {
+            if (fileState[id]) {
+                return fileState[id].file || fileState[id].blobData.blob;
+            }
+        },
+
+        isValid: function(id) {
+            return fileState[id] !== undefined;
+        },
+
+        reset: function() {
+            fileState.length = 0;
+        },
+
+        expunge: function(id) {
+            var xhr = fileState[id].xhr;
+
+            if (xhr) {
+                xhr.onreadystatechange = null;
+                xhr.abort();
+            }
+
+            delete fileState[id];
+        },
+
+        /**
+         * Sends the file identified by id to the server
+         */
+        upload: function(id, retry) {
+            fileState[id] && delete fileState[id].paused;
+            return onUpload(id, retry);
+        },
+
+        cancel: function(id) {
+            var onCancelRetVal = onCancel(id, getName(id));
+
+            if (onCancelRetVal instanceof qq.Promise) {
+                return onCancelRetVal.then(function() {
+                    this.expunge(id);
+                });
+            }
+            else if (onCancelRetVal !== false) {
+                this.expunge(id);
+                return true;
+            }
+
+            return false;
+        },
+
+        pause: function(id) {
+            var xhr = fileState[id].xhr;
+
+            if(xhr) {
+                log(qq.format("Aborting XHR upload for {} '{}' due to pause instruction.", id, getName(id)));
+                fileState[id].paused = true;
+                xhr.abort();
+                return true;
+            }
+        }
+    });
+};
+
+/*globals qq */
+/*jshint -W117 */
+qq.WindowReceiveMessage = function(o) {
+    "use strict";
+
+    var options = {
+            log: function(message, level) {}
+        },
+        callbackWrapperDetachers = {};
+
+    qq.extend(options, o);
+
+    qq.extend(this, {
+        receiveMessage : function(id, callback) {
+            var onMessageCallbackWrapper = function(event) {
+                    callback(event.data);
+                };
+
+            if (window.postMessage) {
+                callbackWrapperDetachers[id] = qq(window).attach("message", onMessageCallbackWrapper);
+            }
+            else {
+                log("iframe message passing not supported in this browser!", "error");
+            }
+        },
+
+        stopReceivingMessages : function(id) {
+            if (window.postMessage) {
+                var detacher = callbackWrapperDetachers[id];
+                if (detacher) {
+                    detacher();
+                }
+            }
+        }
+    });
+};
+
+/*globals qq */
+/**
+ * Defines the public API for FineUploader mode.
+ */
+(function(){
+    "use strict";
+
+    qq.uiPublicApi = {
+        clearStoredFiles: function() {
+            this._parent.prototype.clearStoredFiles.apply(this, arguments);
+            this._templating.clearFiles();
+        },
+
+        addExtraDropzone: function(element){
+            this._dnd && this._dnd.setupExtraDropzone(element);
+        },
+
+        removeExtraDropzone: function(element){
+            if (this._dnd) {
+                return this._dnd.removeDropzone(element);
+            }
+        },
+
+        getItemByFileId: function(id) {
+            return this._templating.getFileContainer(id);
+        },
+
+        reset: function() {
+            this._parent.prototype.reset.apply(this, arguments);
+            this._templating.reset();
+
+            if (!this._options.button && this._templating.getButton()) {
+                this._defaultButtonId = this._createUploadButton({element: this._templating.getButton()}).getButtonId();
+            }
+
+            if (this._dnd) {
+                this._dnd.dispose();
+                this._dnd = this._setupDragAndDrop();
+            }
+
+            this._totalFilesInBatch = 0;
+            this._filesInBatchAddedToUi = 0;
+
+            this._setupClickAndEditEventHandlers();
+        },
+
+        pauseUpload: function(id) {
+            var paused = this._parent.prototype.pauseUpload.apply(this, arguments);
+
+            paused && this._templating.uploadPaused(id);
+            return paused;
+        },
+
+        continueUpload: function(id) {
+            var continued = this._parent.prototype.continueUpload.apply(this, arguments);
+
+            continued && this._templating.uploadContinued(id);
+            return continued;
+        },
+
+        getId: function(fileContainerOrChildEl) {
+            return this._templating.getFileId(fileContainerOrChildEl);
+        },
+
+        getDropTarget: function(fileId) {
+            var file = this.getFile(fileId);
+
+            return file.qqDropTarget;
+        }
+    };
+
+
+
+
+    /**
+     * Defines the private (internal) API for FineUploader mode.
+     */
+    qq.uiPrivateApi = {
+        _getButton: function(buttonId) {
+            var button = this._parent.prototype._getButton.apply(this, arguments);
+
+            if (!button) {
+                if (buttonId === this._defaultButtonId) {
+                    button = this._templating.getButton();
+                }
+            }
+
+            return button;
+        },
+
+        _removeFileItem: function(fileId) {
+            this._templating.removeFile(fileId);
+        },
+
+        _setupClickAndEditEventHandlers: function() {
+            this._fileButtonsClickHandler = qq.FileButtonsClickHandler && this._bindFileButtonsClickEvent();
+
+            // A better approach would be to check specifically for focusin event support by querying the DOM API,
+            // but the DOMFocusIn event is not exposed as a property, so we have to resort to UA string sniffing.
+            this._focusinEventSupported = !qq.firefox();
+
+            if (this._isEditFilenameEnabled())
+            {
+                this._filenameClickHandler = this._bindFilenameClickEvent();
+                this._filenameInputFocusInHandler = this._bindFilenameInputFocusInEvent();
+                this._filenameInputFocusHandler = this._bindFilenameInputFocusEvent();
+            }
+        },
+
+        _setupDragAndDrop: function() {
+            var self = this,
+                dropZoneElements = this._options.dragAndDrop.extraDropzones,
+                templating = this._templating,
+                defaultDropZone = templating.getDropZone();
+
+            defaultDropZone && dropZoneElements.push(defaultDropZone);
+
+            return new qq.DragAndDrop({
+                dropZoneElements: dropZoneElements,
+                allowMultipleItems: this._options.multiple,
+                classes: {
+                    dropActive: this._options.classes.dropActive
+                },
+                callbacks: {
+                    processingDroppedFiles: function() {
+                        templating.showDropProcessing();
+                    },
+                    processingDroppedFilesComplete: function(files, targetEl) {
+                        templating.hideDropProcessing();
+
+                        qq.each(files, function(idx, file) {
+                            file.qqDropTarget = targetEl;
+                        });
+
+                        if (files) {
+                            self.addFiles(files, null, null);
+                        }
+                    },
+                    dropError: function(code, errorData) {
+                        self._itemError(code, errorData);
+                    },
+                    dropLog: function(message, level) {
+                        self.log(message, level);
+                    }
+                }
+            });
+        },
+
+        _bindFileButtonsClickEvent: function() {
+            var self = this;
+
+            return new qq.FileButtonsClickHandler({
+                templating: this._templating,
+
+                log: function(message, lvl) {
+                    self.log(message, lvl);
+                },
+
+                onDeleteFile: function(fileId) {
+                    self.deleteFile(fileId);
+                },
+
+                onCancel: function(fileId) {
+                    self.cancel(fileId);
+                },
+
+                onRetry: function(fileId) {
+                    qq(self._templating.getFileContainer(fileId)).removeClass(self._classes.retryable);
+                    self.retry(fileId);
+                },
+
+                onPause: function(fileId) {
+                    self.pauseUpload(fileId);
+                },
+
+                onContinue: function(fileId) {
+                    self.continueUpload(fileId);
+                },
+
+                onGetName: function(fileId) {
+                    return self.getName(fileId);
+                }
+            });
+        },
+
+        _isEditFilenameEnabled: function() {
+            /*jshint -W014 */
+            return this._templating.isEditFilenamePossible()
+                && !this._options.autoUpload
+                && qq.FilenameClickHandler
+                && qq.FilenameInputFocusHandler
+                && qq.FilenameInputFocusHandler;
+        },
+
+        _filenameEditHandler: function() {
+            var self = this,
+                templating = this._templating;
+
+            return {
+                templating: templating,
+                log: function(message, lvl) {
+                    self.log(message, lvl);
+                },
+                onGetUploadStatus: function(fileId) {
+                    return self.getUploads({id: fileId}).status;
+                },
+                onGetName: function(fileId) {
+                    return self.getName(fileId);
+                },
+                onSetName: function(id, newName) {
+                    var formattedFilename = self._options.formatFileName(newName);
+
+                    templating.updateFilename(id, formattedFilename);
+                    self.setName(id, newName);
+                },
+                onEditingStatusChange: function(id, isEditing) {
+                    var qqInput = qq(templating.getEditInput(id)),
+                        qqFileContainer = qq(templating.getFileContainer(id));
+
+                    if (isEditing) {
+                        qqInput.addClass("qq-editing");
+                        templating.hideFilename(id);
+                        templating.hideEditIcon(id);
+                    }
+                    else {
+                        qqInput.removeClass("qq-editing");
+                        templating.showFilename(id);
+                        templating.showEditIcon(id);
+                    }
+
+                    // Force IE8 and older to repaint
+                    qqFileContainer.addClass("qq-temp").removeClass("qq-temp");
+                }
+            };
+        },
+
+        _onUploadStatusChange: function(id, oldStatus, newStatus) {
+            this._parent.prototype._onUploadStatusChange.apply(this, arguments);
+
+            if (this._isEditFilenameEnabled()) {
+                // Status for a file exists before it has been added to the DOM, so we must be careful here.
+                if (this._templating.getFileContainer(id) && newStatus !== qq.status.SUBMITTED) {
+                    this._templating.markFilenameEditable(id);
+                    this._templating.hideEditIcon(id);
+                }
+            }
+        },
+
+        _bindFilenameInputFocusInEvent: function() {
+            var spec = qq.extend({}, this._filenameEditHandler());
+
+            return new qq.FilenameInputFocusInHandler(spec);
+        },
+
+        _bindFilenameInputFocusEvent: function() {
+            var spec = qq.extend({}, this._filenameEditHandler());
+
+            return new qq.FilenameInputFocusHandler(spec);
+        },
+
+        _bindFilenameClickEvent: function() {
+            var spec = qq.extend({}, this._filenameEditHandler());
+
+            return new qq.FilenameClickHandler(spec);
+        },
+
+        _storeForLater: function(id) {
+            this._parent.prototype._storeForLater.apply(this, arguments);
+            this._templating.hideSpinner(id);
+        },
+
+        _onSubmit: function(id, name) {
+            this._parent.prototype._onSubmit.apply(this, arguments);
+            this._addToList(id, name);
+        },
+
+        // The file item has been added to the DOM.
+        _onSubmitted: function(id) {
+            // If the edit filename feature is enabled, mark the filename element as "editable" and the associated edit icon
+            if (this._isEditFilenameEnabled()) {
+                this._templating.markFilenameEditable(id);
+                this._templating.showEditIcon(id);
+
+                // If the focusin event is not supported, we must add a focus handler to the newly create edit filename text input
+                if (!this._focusinEventSupported) {
+                    this._filenameInputFocusHandler.addHandler(this._templating.getEditInput(id));
+                }
+            }
+        },
+
+        // Update the progress bar & percentage as the file is uploaded
+        _onProgress: function(id, name, loaded, total){
+            this._parent.prototype._onProgress.apply(this, arguments);
+
+            this._templating.updateProgress(id, loaded, total);
+
+            if (loaded === total) {
+                this._templating.hideCancel(id);
+                this._templating.hidePause(id);
+
+                this._templating.setStatusText(id, this._options.text.waitingForResponse);
+
+                // If last byte was sent, display total file size
+                this._displayFileSize(id);
+            }
+            else {
+                // If still uploading, display percentage - total size is actually the total request(s) size
+                this._displayFileSize(id, loaded, total);
+            }
+        },
+
+        _onComplete: function(id, name, result, xhr) {
+            var parentRetVal = this._parent.prototype._onComplete.apply(this, arguments),
+                templating = this._templating,
+                self = this;
+
+            function completeUpload(result) {
+                templating.setStatusText(id);
+
+                qq(templating.getFileContainer(id)).removeClass(self._classes.retrying);
+                templating.hideProgress(id);
+
+                if (!self._options.disableCancelForFormUploads || qq.supportedFeatures.ajaxUploading) {
+                    templating.hideCancel(id);
+                }
+                templating.hideSpinner(id);
+
+                if (result.success) {
+                    self._markFileAsSuccessful(id);
+                }
+                else {
+                    qq(templating.getFileContainer(id)).addClass(self._classes.fail);
+
+                    if (self._templating.isRetryPossible() && !self._preventRetries[id]) {
+                        qq(templating.getFileContainer(id)).addClass(self._classes.retryable);
+                    }
+                    self._controlFailureTextDisplay(id, result);
+                }
+            }
+
+            // The parent may need to perform some async operation before we can accurately determine the status of the upload.
+            if (parentRetVal instanceof qq.Promise) {
+                parentRetVal.done(function(newResult) {
+                    completeUpload(newResult);
+                });
+
+            }
+            else {
+                completeUpload(result);
+            }
+
+            return parentRetVal;
+        },
+
+        _markFileAsSuccessful: function(id) {
+            var templating = this._templating;
+
+            if (this._isDeletePossible()) {
+                templating.showDeleteButton(id);
+            }
+
+            qq(templating.getFileContainer(id)).addClass(this._classes.success);
+
+            this._maybeUpdateThumbnail(id);
+        },
+
+        _onUpload: function(id, name){
+            var parentRetVal = this._parent.prototype._onUpload.apply(this, arguments);
+
+            this._templating.showSpinner(id);
+
+            return parentRetVal;
+        },
+
+        _onUploadChunk: function(id, chunkData) {
+            this._parent.prototype._onUploadChunk.apply(this, arguments);
+
+            // Only display the pause button if we have finished uploading at least one chunk
+            chunkData.partIndex > 0 && this._templating.allowPause(id);
+        },
+
+        _onCancel: function(id, name) {
+            this._parent.prototype._onCancel.apply(this, arguments);
+            this._removeFileItem(id);
+        },
+
+        _onBeforeAutoRetry: function(id) {
+            var retryNumForDisplay, maxAuto, retryNote;
+
+            this._parent.prototype._onBeforeAutoRetry.apply(this, arguments);
+
+            this._showCancelLink(id);
+
+            if (this._options.retry.showAutoRetryNote) {
+                retryNumForDisplay = this._autoRetries[id] + 1;
+                maxAuto = this._options.retry.maxAutoAttempts;
+
+                retryNote = this._options.retry.autoRetryNote.replace(/\{retryNum\}/g, retryNumForDisplay);
+                retryNote = retryNote.replace(/\{maxAuto\}/g, maxAuto);
+
+                this._templating.setStatusText(id, retryNote);
+                qq(this._templating.getFileContainer(id)).addClass(this._classes.retrying);
+            }
+        },
+
+        //return false if we should not attempt the requested retry
+        _onBeforeManualRetry: function(id) {
+            if (this._parent.prototype._onBeforeManualRetry.apply(this, arguments)) {
+                this._templating.resetProgress(id);
+                qq(this._templating.getFileContainer(id)).removeClass(this._classes.fail);
+                this._templating.setStatusText(id);
+                this._templating.showSpinner(id);
+                this._showCancelLink(id);
+                return true;
+            }
+            else {
+                qq(this._templating.getFileContainer(id)).addClass(this._classes.retryable);
+                return false;
+            }
+        },
+
+        _onSubmitDelete: function(id) {
+            var onSuccessCallback = qq.bind(this._onSubmitDeleteSuccess, this);
+
+            this._parent.prototype._onSubmitDelete.call(this, id, onSuccessCallback);
+        },
+
+        _onSubmitDeleteSuccess: function(id, uuid, additionalMandatedParams) {
+            if (this._options.deleteFile.forceConfirm) {
+                this._showDeleteConfirm.apply(this, arguments);
+            }
+            else {
+                this._sendDeleteRequest.apply(this, arguments);
+            }
+        },
+
+        _onDeleteComplete: function(id, xhr, isError) {
+            this._parent.prototype._onDeleteComplete.apply(this, arguments);
+
+            this._templating.hideSpinner(id);
+
+            if (isError) {
+                this._templating.setStatusText(id, this._options.deleteFile.deletingFailedText);
+                this._templating.showDeleteButton(id);
+            }
+            else {
+                this._removeFileItem(id);
+            }
+        },
+
+        _sendDeleteRequest: function(id, uuid, additionalMandatedParams) {
+            this._templating.hideDeleteButton(id);
+            this._templating.showSpinner(id);
+            this._templating.setStatusText(id, this._options.deleteFile.deletingStatusText);
+            this._deleteHandler.sendDelete.apply(this, arguments);
+        },
+
+        _showDeleteConfirm: function(id, uuid, mandatedParams) {
+            /*jshint -W004 */
+            var fileName = this.getName(id),
+                confirmMessage = this._options.deleteFile.confirmMessage.replace(/\{filename\}/g, fileName),
+                uuid = this.getUuid(id),
+                deleteRequestArgs = arguments,
+                self = this,
+                retVal;
+
+            retVal = this._options.showConfirm(confirmMessage);
+
+            if (retVal instanceof qq.Promise) {
+                retVal.then(function () {
+                    self._sendDeleteRequest.apply(self, deleteRequestArgs);
+                });
+            }
+            else if (retVal !== false) {
+                self._sendDeleteRequest.apply(self, deleteRequestArgs);
+            }
+        },
+
+        _addToList: function(id, name, canned) {
+            var prependData,
+                prependIndex = 0;
+
+            if (this._options.display.prependFiles) {
+                if (this._totalFilesInBatch > 1 && this._filesInBatchAddedToUi > 0) {
+                    prependIndex = this._filesInBatchAddedToUi - 1;
+                }
+
+                prependData = {
+                    index: prependIndex
+                };
+            }
+
+            if (!canned) {
+                if (this._options.disableCancelForFormUploads && !qq.supportedFeatures.ajaxUploading) {
+                    this._templating.disableCancel();
+                }
+
+                if (!this._options.multiple) {
+                    this._handler.cancelAll();
+                    this._clearList();
+                }
+            }
+
+            this._templating.addFile(id, this._options.formatFileName(name), prependData);
+
+            if (canned) {
+                this._thumbnailUrls[id] && this._templating.updateThumbnail(id, this._thumbnailUrls[id], true);
+            }
+            else {
+                this._templating.generatePreview(id, this.getFile(id));
+            }
+
+            this._filesInBatchAddedToUi += 1;
+
+            if (this._options.display.fileSizeOnSubmit && qq.supportedFeatures.ajaxUploading) {
+                this._displayFileSize(id);
+            }
+        },
+
+        _clearList: function(){
+            this._templating.clearFiles();
+            this.clearStoredFiles();
+        },
+
+        _displayFileSize: function(id, loadedSize, totalSize) {
+            var size = this.getSize(id),
+                sizeForDisplay = this._formatSize(size);
+
+            if (size >= 0) {
+                if (loadedSize !== undefined && totalSize !== undefined) {
+                    sizeForDisplay = this._formatProgress(loadedSize, totalSize);
+                }
+
+                this._templating.updateSize(id, sizeForDisplay);
+            }
+        },
+
+        _formatProgress: function (uploadedSize, totalSize) {
+            var message = this._options.text.formatProgress;
+            function r(name, replacement) { message = message.replace(name, replacement); }
+
+            r("{percent}", Math.round(uploadedSize / totalSize * 100));
+            r("{total_size}", this._formatSize(totalSize));
+            return message;
+        },
+
+        _controlFailureTextDisplay: function(id, response) {
+            var mode, maxChars, responseProperty, failureReason, shortFailureReason;
+
+            mode = this._options.failedUploadTextDisplay.mode;
+            maxChars = this._options.failedUploadTextDisplay.maxChars;
+            responseProperty = this._options.failedUploadTextDisplay.responseProperty;
+
+            if (mode === "custom") {
+                failureReason = response[responseProperty];
+                if (failureReason) {
+                    if (failureReason.length > maxChars) {
+                        shortFailureReason = failureReason.substring(0, maxChars) + "...";
+                    }
+                }
+                else {
+                    failureReason = this._options.text.failUpload;
+                    this.log("'" + responseProperty + "' is not a valid property on the server response.", "warn");
+                }
+
+                this._templating.setStatusText(id, shortFailureReason || failureReason);
+
+                if (this._options.failedUploadTextDisplay.enableTooltip) {
+                    this._showTooltip(id, failureReason);
+                }
+            }
+            else if (mode === "default") {
+                this._templating.setStatusText(id, this._options.text.failUpload);
+            }
+            else if (mode !== "none") {
+                this.log("failedUploadTextDisplay.mode value of '" + mode + "' is not valid", "warn");
+            }
+        },
+
+        _showTooltip: function(id, text) {
+            this._templating.getFileContainer(id).title = text;
+        },
+
+        _showCancelLink: function(id) {
+            if (!this._options.disableCancelForFormUploads || qq.supportedFeatures.ajaxUploading) {
+                this._templating.showCancel(id);
+            }
+        },
+
+        _itemError: function(code, name, item) {
+            var message = this._parent.prototype._itemError.apply(this, arguments);
+            this._options.showMessage(message);
+        },
+
+        _batchError: function(message) {
+            this._parent.prototype._batchError.apply(this, arguments);
+            this._options.showMessage(message);
+        },
+
+        _setupPastePrompt: function() {
+            var self = this;
+
+            this._options.callbacks.onPasteReceived = function() {
+                var message = self._options.paste.namePromptMessage,
+                    defaultVal = self._options.paste.defaultName;
+
+                return self._options.showPrompt(message, defaultVal);
+            };
+        },
+
+        _fileOrBlobRejected: function(id, name) {
+            this._totalFilesInBatch -= 1;
+            this._parent.prototype._fileOrBlobRejected.apply(this, arguments);
+        },
+
+        _prepareItemsForUpload: function(items, params, endpoint) {
+            this._totalFilesInBatch = items.length;
+            this._filesInBatchAddedToUi = 0;
+            this._parent.prototype._prepareItemsForUpload.apply(this, arguments);
+        },
+
+        _maybeUpdateThumbnail: function(fileId) {
+            var thumbnailUrl = this._thumbnailUrls[fileId];
+
+            this._templating.updateThumbnail(fileId, thumbnailUrl);
+        },
+
+        _addCannedFile: function(sessionData) {
+            var id = this._parent.prototype._addCannedFile.apply(this, arguments);
+
+            this._addToList(id, this.getName(id), true);
+            this._templating.hideSpinner(id);
+            this._templating.hideCancel(id);
+            this._markFileAsSuccessful(id);
+
+            return id;
+        }
+    };
+}());
+
+/*globals qq */
+/**
+ * This defines FineUploader mode, which is a default UI w/ drag & drop uploading.
+ */
+qq.FineUploader = function(o, namespace) {
+    "use strict";
+
+    // By default this should inherit instance data from FineUploaderBasic, but this can be overridden
+    // if the (internal) caller defines a different parent.  The parent is also used by
+    // the private and public API functions that need to delegate to a parent function.
+    this._parent = namespace ? qq[namespace].FineUploaderBasic : qq.FineUploaderBasic;
+    this._parent.apply(this, arguments);
+
+    // Options provided by FineUploader mode
+    qq.extend(this._options, {
+        element: null,
+
+        button: null,
+
+        listElement: null,
+
+        dragAndDrop: {
+            extraDropzones: []
+        },
+
+        text: {
+            formatProgress: "{percent}% of {total_size}",
+            failUpload: "Upload failed",
+            waitingForResponse: "Processing...",
+            paused: "Paused"
+        },
+
+        template: "qq-template",
+
+        classes: {
+            retrying: "qq-upload-retrying",
+            retryable: "qq-upload-retryable",
+            success: "qq-upload-success",
+            fail: "qq-upload-fail",
+            editable: "qq-editable",
+            hide: "qq-hide",
+            dropActive: "qq-upload-drop-area-active"
+        },
+
+        failedUploadTextDisplay: {
+            mode: "default", //default, custom, or none
+            maxChars: 50,
+            responseProperty: "error",
+            enableTooltip: true
+        },
+
+        messages: {
+            tooManyFilesError: "You may only drop one file",
+            unsupportedBrowser: "Unrecoverable error - this browser does not permit file uploading of any kind."
+        },
+
+        retry: {
+            showAutoRetryNote: true,
+            autoRetryNote: "Retrying {retryNum}/{maxAuto}..."
+        },
+
+        deleteFile: {
+            forceConfirm: false,
+            confirmMessage: "Are you sure you want to delete {filename}?",
+            deletingStatusText: "Deleting...",
+            deletingFailedText: "Delete failed"
+
+        },
+
+        display: {
+            fileSizeOnSubmit: false,
+            prependFiles: false
+        },
+
+        paste: {
+            promptForName: false,
+            namePromptMessage: "Please name this image"
+        },
+
+        thumbnails: {
+            placeholders: {
+                waitUntilResponse: false,
+                notAvailablePath: null,
+                waitingPath: null
+            }
+        },
+
+        showMessage: function(message){
+            setTimeout(function() {
+                window.alert(message);
+            }, 0);
+        },
+
+        showConfirm: function(message) {
+            return window.confirm(message);
+        },
+
+        showPrompt: function(message, defaultValue) {
+            return window.prompt(message, defaultValue);
+        }
+    }, true);
+
+    // Replace any default options with user defined ones
+    qq.extend(this._options, o, true);
+
+    this._templating = new qq.Templating({
+        log: qq.bind(this.log, this),
+        templateIdOrEl: this._options.template,
+        containerEl: this._options.element,
+        fileContainerEl: this._options.listElement,
+        button: this._options.button,
+        imageGenerator: this._imageGenerator,
+        classes: {
+            hide: this._options.classes.hide,
+            editable: this._options.classes.editable
+        },
+        placeholders: {
+            waitUntilUpdate: this._options.thumbnails.placeholders.waitUntilResponse,
+            thumbnailNotAvailable: this._options.thumbnails.placeholders.notAvailablePath,
+            waitingForThumbnail: this._options.thumbnails.placeholders.waitingPath
+        },
+        text: this._options.text
+    });
+
+    if (!qq.supportedFeatures.uploading || (this._options.cors.expected && !qq.supportedFeatures.uploadCors)) {
+        this._templating.renderFailure(this._options.messages.unsupportedBrowser);
+    }
+    else {
+        this._wrapCallbacks();
+
+        this._templating.render();
+
+        this._classes = this._options.classes;
+
+        if (!this._options.button && this._templating.getButton()) {
+            this._defaultButtonId = this._createUploadButton({element: this._templating.getButton()}).getButtonId();
+        }
+
+        this._setupClickAndEditEventHandlers();
+
+        if (qq.DragAndDrop && qq.supportedFeatures.fileDrop) {
+            this._dnd = this._setupDragAndDrop();
+        }
+
+        if (this._options.paste.targetElement && this._options.paste.promptForName) {
+            if (qq.PasteSupport) {
+                this._setupPastePrompt();
+            }
+            else {
+                qq.log("Paste support module not found.", "info");
+            }
+        }
+
+        this._totalFilesInBatch = 0;
+        this._filesInBatchAddedToUi = 0;
+    }
+};
+
+// Inherit the base public & private API methods
+qq.extend(qq.FineUploader.prototype, qq.basePublicApi);
+qq.extend(qq.FineUploader.prototype, qq.basePrivateApi);
+
+// Add the FineUploader/default UI public & private UI methods, which may override some base methods.
+qq.extend(qq.FineUploader.prototype, qq.uiPublicApi);
+qq.extend(qq.FineUploader.prototype, qq.uiPrivateApi);
+
+/* globals qq */
+/* jshint -W065 */
+/**
+ * Module responsible for rendering all Fine Uploader UI templates.  This module also asserts at least
+ * a limited amount of control over the template elements after they are added to the DOM.
+ * Wherever possible, this module asserts total control over template elements present in the DOM.
+ *
+ * @param spec Specification object used to control various templating behaviors
+ * @constructor
+ */
+qq.Templating = function(spec) {
+    "use strict";
+
+    var FILE_ID_ATTR = "qq-file-id",
+        FILE_CLASS_PREFIX = "qq-file-id-",
+        THUMBNAIL_MAX_SIZE_ATTR = "qq-max-size",
+        THUMBNAIL_SERVER_SCALE_ATTR = "qq-server-scale",
+        // This variable is duplicated in the DnD module since it can function as a standalone as well
+        HIDE_DROPZONE_ATTR = "qq-hide-dropzone",
+        isCancelDisabled = false,
+        thumbnailMaxSize = -1,
+        options = {
+            log: null,
+            templateIdOrEl: "qq-template",
+            containerEl: null,
+            fileContainerEl: null,
+            button: null,
+            imageGenerator: null,
+            classes: {
+                hide: "qq-hide",
+                editable: "qq-editable"
+            },
+            placeholders: {
+                waitUntilUpdate: false,
+                thumbnailNotAvailable: null,
+                waitingForThumbnail: null
+            },
+            text: {
+                paused: "Paused"
+            }
+        },
+        selectorClasses = {
+            button: "qq-upload-button-selector",
+            drop: "qq-upload-drop-area-selector",
+            list: "qq-upload-list-selector",
+            progressBarContainer: "qq-progress-bar-container-selector",
+            progressBar: "qq-progress-bar-selector",
+            file: "qq-upload-file-selector",
+            spinner: "qq-upload-spinner-selector",
+            size: "qq-upload-size-selector",
+            cancel: "qq-upload-cancel-selector",
+            pause: "qq-upload-pause-selector",
+            continueButton: "qq-upload-continue-selector",
+            deleteButton: "qq-upload-delete-selector",
+            retry: "qq-upload-retry-selector",
+            statusText: "qq-upload-status-text-selector",
+            editFilenameInput: "qq-edit-filename-selector",
+            editNameIcon: "qq-edit-filename-icon-selector",
+            dropProcessing: "qq-drop-processing-selector",
+            dropProcessingSpinner: "qq-drop-processing-spinner-selector",
+            thumbnail: "qq-thumbnail-selector"
+        },
+        previewGeneration = {},
+        cachedThumbnailNotAvailableImg = new qq.Promise(),
+        cachedWaitingForThumbnailImg = new qq.Promise(),
+        log,
+        isEditElementsExist,
+        isRetryElementExist,
+        templateHtml,
+        container,
+        fileList,
+        showThumbnails,
+        serverScale;
+
+    /**
+     * Grabs the HTML from the script tag holding the template markup.  This function will also adjust
+     * some internally-tracked state variables based on the contents of the template.
+     * The template is filtered so that irrelevant elements (such as the drop zone if DnD is not supported)
+     * are omitted from the DOM.  Useful errors will be thrown if the template cannot be parsed.
+     *
+     * @returns {{template: *, fileTemplate: *}} HTML for the top-level file items templates
+     */
+    function parseAndGetTemplate() {
+        var scriptEl,
+            scriptHtml,
+            fileListNode,
+            tempTemplateEl,
+            fileListHtml,
+            defaultButton,
+            dropArea,
+            thumbnail,
+            dropProcessing;
+
+        log("Parsing template");
+
+        /*jshint -W116*/
+        if (options.templateIdOrEl == null) {
+            throw new Error("You MUST specify either a template element or ID!");
+        }
+
+        // Grab the contents of the script tag holding the template.
+        if (qq.isString(options.templateIdOrEl)) {
+            scriptEl = document.getElementById(options.templateIdOrEl);
+
+            if (scriptEl === null) {
+                throw new Error(qq.format("Cannot find template script at ID '{}'!", options.templateIdOrEl));
+            }
+
+            scriptHtml = scriptEl.innerHTML;
+        }
+        else {
+            if (options.templateIdOrEl.innerHTML === undefined) {
+                throw new Error("You have specified an invalid value for the template option!  " +
+                    "It must be an ID or an Element.");
+            }
+
+            scriptHtml = options.templateIdOrEl.innerHTML;
+        }
+
+        scriptHtml = qq.trimStr(scriptHtml);
+        tempTemplateEl = document.createElement("div");
+        tempTemplateEl.appendChild(qq.toElement(scriptHtml));
+
+        // Don't include the default template button in the DOM
+        // if an alternate button container has been specified.
+        if (options.button) {
+            defaultButton = qq(tempTemplateEl).getByClass(selectorClasses.button)[0];
+            if (defaultButton) {
+                qq(defaultButton).remove();
+            }
+        }
+
+        // Omit the drop processing element from the DOM if DnD is not supported by the UA,
+        // or the drag and drop module is not found.
+        // NOTE: We are consciously not removing the drop zone if the UA doesn't support DnD
+        // to support layouts where the drop zone is also a container for visible elements,
+        // such as the file list.
+        if (!qq.DragAndDrop || !qq.supportedFeatures.fileDrop) {
+            dropProcessing = qq(tempTemplateEl).getByClass(selectorClasses.dropProcessing)[0];
+            if (dropProcessing) {
+                qq(dropProcessing).remove();
+            }
+
+        }
+
+        dropArea = qq(tempTemplateEl).getByClass(selectorClasses.drop)[0];
+
+        // If DnD is not available then remove
+        // it from the DOM as well.
+        if (dropArea && !qq.DragAndDrop) {
+            qq.log("DnD module unavailable.", "info");
+            qq(dropArea).remove();
+        }
+
+        // If there is a drop area defined in the template, and the current UA doesn't support DnD,
+        // and the drop area is marked as "hide before enter", ensure it is hidden as the DnD module
+        // will not do this (since we will not be loading the DnD module)
+        if (dropArea && !qq.supportedFeatures.fileDrop &&
+            qq(dropArea).hasAttribute(HIDE_DROPZONE_ATTR)) {
+
+            qq(dropArea).css({
+                display: "none"
+            });
+        }
+
+        // Ensure the `showThumbnails` flag is only set if the thumbnail element
+        // is present in the template AND the current UA is capable of generating client-side previews.
+        thumbnail = qq(tempTemplateEl).getByClass(selectorClasses.thumbnail)[0];
+        if (!showThumbnails) {
+            thumbnail && qq(thumbnail).remove();
+        }
+        else if (thumbnail) {
+            thumbnailMaxSize = parseInt(thumbnail.getAttribute(THUMBNAIL_MAX_SIZE_ATTR));
+            // Only enforce max size if the attr value is non-zero
+            thumbnailMaxSize = thumbnailMaxSize > 0 ? thumbnailMaxSize : null;
+
+            serverScale = qq(thumbnail).hasAttribute(THUMBNAIL_SERVER_SCALE_ATTR);
+        }
+        showThumbnails = showThumbnails && thumbnail;
+
+        isEditElementsExist = qq(tempTemplateEl).getByClass(selectorClasses.editFilenameInput).length > 0;
+        isRetryElementExist = qq(tempTemplateEl).getByClass(selectorClasses.retry).length > 0;
+
+        fileListNode = qq(tempTemplateEl).getByClass(selectorClasses.list)[0];
+        /*jshint -W116*/
+        if (fileListNode == null) {
+            throw new Error("Could not find the file list container in the template!");
+        }
+
+        fileListHtml = fileListNode.innerHTML;
+        fileListNode.innerHTML = "";
+
+        log("Template parsing complete");
+
+        return {
+            template: qq.trimStr(tempTemplateEl.innerHTML),
+            fileTemplate: qq.trimStr(fileListHtml)
+        };
+    }
+
+    function getFile(id) {
+        return qq(fileList).getByClass(FILE_CLASS_PREFIX + id)[0];
+    }
+
+    function getTemplateEl(context, cssClass) {
+        return qq(context).getByClass(cssClass)[0];
+    }
+
+    function prependFile(el, index) {
+        var parentEl = fileList,
+            beforeEl = parentEl.firstChild;
+
+        if (index > 0) {
+            beforeEl = qq(parentEl).children()[index].nextSibling;
+
+        }
+
+        parentEl.insertBefore(el, beforeEl);
+    }
+
+    function getCancel(id) {
+        return getTemplateEl(getFile(id), selectorClasses.cancel);
+    }
+
+    function getPause(id) {
+        return getTemplateEl(getFile(id), selectorClasses.pause);
+    }
+
+    function getContinue(id) {
+        return getTemplateEl(getFile(id), selectorClasses.continueButton);
+    }
+
+    function getProgress(id) {
+        return getTemplateEl(getFile(id), selectorClasses.progressBarContainer) ||
+            getTemplateEl(getFile(id), selectorClasses.progressBar);
+    }
+
+    function getSpinner(id) {
+        return getTemplateEl(getFile(id), selectorClasses.spinner);
+    }
+
+    function getEditIcon(id) {
+        return getTemplateEl(getFile(id), selectorClasses.editNameIcon);
+    }
+
+    function getSize(id) {
+        return getTemplateEl(getFile(id), selectorClasses.size);
+    }
+
+    function getDelete(id) {
+        return getTemplateEl(getFile(id), selectorClasses.deleteButton);
+    }
+
+    function getRetry(id) {
+        return getTemplateEl(getFile(id), selectorClasses.retry);
+    }
+
+    function getFilename(id) {
+        return getTemplateEl(getFile(id), selectorClasses.file);
+    }
+
+    function getDropProcessing() {
+        return getTemplateEl(container, selectorClasses.dropProcessing);
+    }
+
+    function getThumbnail(id) {
+        return showThumbnails && getTemplateEl(getFile(id), selectorClasses.thumbnail);
+    }
+
+    function hide(el) {
+        el && qq(el).addClass(options.classes.hide);
+    }
+
+    function show(el) {
+        el && qq(el).removeClass(options.classes.hide);
+    }
+
+    function setProgressBarWidth(id, percent) {
+        var bar = getProgress(id);
+
+        if (bar && !qq(bar).hasClass(selectorClasses.progressBar)) {
+            bar = qq(bar).getByClass(selectorClasses.progressBar)[0];
+        }
+
+        bar && qq(bar).css({width: percent + "%"});
+    }
+
+    // During initialization of the templating module we should cache any
+    // placeholder images so we can quickly swap them into the file list on demand.
+    // Any placeholder images that cannot be loaded/found are simply ignored.
+    function cacheThumbnailPlaceholders() {
+        var notAvailableUrl =  options.placeholders.thumbnailNotAvailable,
+            waitingUrl = options.placeholders.waitingForThumbnail,
+            spec = {
+                maxSize: thumbnailMaxSize,
+                scale: serverScale
+            };
+
+        if (showThumbnails) {
+            if (notAvailableUrl) {
+                options.imageGenerator.generate(notAvailableUrl, new Image(), spec).then(
+                    function(updatedImg) {
+                        cachedThumbnailNotAvailableImg.success(updatedImg);
+                    },
+                    function() {
+                        cachedThumbnailNotAvailableImg.failure();
+                        log("Problem loading 'not available' placeholder image at " + notAvailableUrl, "error");
+                    }
+                );
+            }
+            else {
+                cachedThumbnailNotAvailableImg.failure();
+            }
+
+            if (waitingUrl) {
+                options.imageGenerator.generate(waitingUrl, new Image(), spec).then(
+                    function(updatedImg) {
+                        cachedWaitingForThumbnailImg.success(updatedImg);
+                    },
+                    function() {
+                        cachedWaitingForThumbnailImg.failure();
+                        log("Problem loading 'waiting for thumbnail' placeholder image at " + waitingUrl, "error");
+                    }
+                );
+            }
+            else {
+                cachedWaitingForThumbnailImg.failure();
+            }
+        }
+    }
+
+    // Displays a "waiting for thumbnail" type placeholder image
+    // iff we were able to load it during initialization of the templating module.
+    function displayWaitingImg(thumbnail) {
+        cachedWaitingForThumbnailImg.then(function(img) {
+            maybeScalePlaceholderViaCss(img, thumbnail);
+            /* jshint eqnull:true */
+            if (thumbnail.getAttribute("src") == null) {
+                thumbnail.src = img.src;
+                show(thumbnail);
+            }
+        }, function() {
+            // In some browsers (such as IE9 and older) an img w/out a src attribute
+            // are displayed as "broken" images, so we sohuld just hide the img tag
+            // if we aren't going to display the "waiting" placeholder.
+            hide(thumbnail);
+        });
+    }
+
+    // Displays a "thumbnail not available" type placeholder image
+    // iff we were able to load this placeholder during initialization
+    // of the templating module or after preview generation has failed.
+    function maybeSetDisplayNotAvailableImg(id, thumbnail) {
+        var previewing = previewGeneration[id] || new qq.Promise().failure();
+
+        cachedThumbnailNotAvailableImg.then(function(img) {
+            previewing.then(
+                function() {
+                    delete previewGeneration[id];
+                },
+                function() {
+                    maybeScalePlaceholderViaCss(img, thumbnail);
+                    thumbnail.src = img.src;
+                    show(thumbnail);
+                    delete previewGeneration[id];
+                }
+            );
+        });
+    }
+
+    // Ensures a placeholder image does not exceed any max size specified
+    // via `style` attribute properties iff <canvas> was not used to scale
+    // the placeholder AND the target <img> doesn't already have these `style` attribute properties set.
+    function maybeScalePlaceholderViaCss(placeholder, thumbnail) {
+        var maxWidth = placeholder.style.maxWidth,
+            maxHeight = placeholder.style.maxHeight;
+
+        if (maxHeight && maxWidth && !thumbnail.style.maxWidth && !thumbnail.style.maxHeight) {
+            qq(thumbnail).css({
+                maxWidth: maxWidth,
+                maxHeight: maxHeight
+            });
+        }
+    }
+
+
+    qq.extend(options, spec);
+    log = options.log;
+
+    container = options.containerEl;
+    showThumbnails = options.imageGenerator !== undefined;
+    templateHtml = parseAndGetTemplate();
+
+    cacheThumbnailPlaceholders();
+
+    qq.extend(this, {
+        render: function() {
+            log("Rendering template in DOM.");
+
+            container.innerHTML = templateHtml.template;
+            hide(getDropProcessing());
+            fileList = options.fileContainerEl || getTemplateEl(container, selectorClasses.list);
+
+            log("Template rendering complete");
+        },
+
+        renderFailure: function(message) {
+            var cantRenderEl = qq.toElement(message);
+            container.innerHTML = "";
+            container.appendChild(cantRenderEl);
+        },
+
+        reset: function() {
+            this.render();
+        },
+
+        clearFiles: function() {
+            fileList.innerHTML = "";
+        },
+
+        disableCancel: function() {
+            isCancelDisabled = true;
+        },
+
+        addFile: function(id, name, prependInfo) {
+            var fileEl = qq.toElement(templateHtml.fileTemplate),
+                fileNameEl = getTemplateEl(fileEl, selectorClasses.file);
+
+            qq(fileEl).addClass(FILE_CLASS_PREFIX + id);
+            fileNameEl && qq(fileNameEl).setText(name);
+            fileEl.setAttribute(FILE_ID_ATTR, id);
+
+            if (prependInfo) {
+                prependFile(fileEl, prependInfo.index);
+            }
+            else {
+                fileList.appendChild(fileEl);
+            }
+
+            hide(getProgress(id));
+            hide(getSize(id));
+            hide(getDelete(id));
+            hide(getRetry(id));
+            hide(getPause(id));
+            hide(getContinue(id));
+
+            if (isCancelDisabled) {
+                this.hideCancel(id);
+            }
+        },
+
+        removeFile: function(id) {
+            qq(getFile(id)).remove();
+        },
+
+        getFileId: function(el) {
+            var currentNode = el;
+
+            if (currentNode) {
+                /*jshint -W116*/
+                while (currentNode.getAttribute(FILE_ID_ATTR) == null) {
+                    currentNode = currentNode.parentNode;
+                }
+
+                return parseInt(currentNode.getAttribute(FILE_ID_ATTR));
+            }
+        },
+
+        getFileList: function() {
+            return fileList;
+        },
+
+        markFilenameEditable: function(id) {
+            var filename = getFilename(id);
+
+            filename && qq(filename).addClass(options.classes.editable);
+        },
+
+        updateFilename: function(id, name) {
+            var filename = getFilename(id);
+
+            filename && qq(filename).setText(name);
+        },
+
+        hideFilename: function(id) {
+            hide(getFilename(id));
+        },
+
+        showFilename: function(id) {
+            show(getFilename(id));
+        },
+
+        isFileName: function(el) {
+            return qq(el).hasClass(selectorClasses.file);
+        },
+
+        getButton: function() {
+            return options.button || getTemplateEl(container, selectorClasses.button);
+        },
+
+        hideDropProcessing: function() {
+            hide(getDropProcessing());
+        },
+
+        showDropProcessing: function() {
+            show(getDropProcessing());
+        },
+
+        getDropZone: function() {
+            return getTemplateEl(container, selectorClasses.drop);
+        },
+
+        isEditFilenamePossible: function() {
+            return isEditElementsExist;
+        },
+
+        isRetryPossible: function() {
+            return isRetryElementExist;
+        },
+
+        getFileContainer: function(id) {
+            return getFile(id);
+        },
+
+        showEditIcon: function(id) {
+            var icon = getEditIcon(id);
+
+            icon && qq(icon).addClass(options.classes.editable);
+        },
+
+        hideEditIcon: function(id) {
+            var icon = getEditIcon(id);
+
+            icon && qq(icon).removeClass(options.classes.editable);
+        },
+
+        isEditIcon: function(el) {
+            return qq(el).hasClass(selectorClasses.editNameIcon);
+        },
+
+        getEditInput: function(id) {
+            return getTemplateEl(getFile(id), selectorClasses.editFilenameInput);
+        },
+
+        isEditInput: function(el) {
+            return qq(el).hasClass(selectorClasses.editFilenameInput);
+        },
+
+        updateProgress: function(id, loaded, total) {
+            var bar = getProgress(id),
+                percent;
+
+            if (bar) {
+                percent = Math.round(loaded / total * 100);
+
+                if (loaded === total) {
+                    hide(bar);
+                }
+                else {
+                    show(bar);
+                }
+
+                setProgressBarWidth(id, percent);
+            }
+        },
+
+        hideProgress: function(id) {
+            var bar = getProgress(id);
+
+            bar && hide(bar);
+        },
+
+        resetProgress: function(id) {
+            setProgressBarWidth(id, 0);
+        },
+
+        showCancel: function(id) {
+            if (!isCancelDisabled) {
+                var cancel = getCancel(id);
+
+                cancel && qq(cancel).removeClass(options.classes.hide);
+            }
+        },
+
+        hideCancel: function(id) {
+            hide(getCancel(id));
+        },
+
+        isCancel: function(el)  {
+            return qq(el).hasClass(selectorClasses.cancel);
+        },
+
+        allowPause: function(id) {
+            show(getPause(id));
+            hide(getContinue(id));
+        },
+
+        uploadPaused: function(id) {
+            this.setStatusText(id, options.text.paused);
+            this.allowContinueButton(id);
+            hide(getSpinner(id));
+        },
+
+        hidePause: function(id) {
+            hide(getPause(id));
+        },
+
+        isPause: function(el) {
+            return qq(el).hasClass(selectorClasses.pause);
+        },
+
+        isContinueButton: function(el) {
+            return qq(el).hasClass(selectorClasses.continueButton);
+        },
+
+        allowContinueButton: function(id) {
+            show(getContinue(id));
+            hide(getPause(id));
+        },
+
+        uploadContinued: function(id) {
+            this.setStatusText(id, "");
+            this.allowPause(id);
+            show(getSpinner(id));
+        },
+
+        showDeleteButton: function(id) {
+            show(getDelete(id));
+        },
+
+        hideDeleteButton: function(id) {
+            hide(getDelete(id));
+        },
+
+        isDeleteButton: function(el) {
+            return qq(el).hasClass(selectorClasses.deleteButton);
+        },
+
+        isRetry: function(el) {
+            return qq(el).hasClass(selectorClasses.retry);
+        },
+
+        updateSize: function(id, text) {
+            var size = getSize(id);
+
+            if (size) {
+                show(size);
+                qq(size).setText(text);
+            }
+        },
+
+        setStatusText: function(id, text) {
+            var textEl = getTemplateEl(getFile(id), selectorClasses.statusText);
+
+            if (textEl) {
+                /*jshint -W116*/
+                if (text == null) {
+                    qq(textEl).clearText();
+                }
+                else {
+                    qq(textEl).setText(text);
+                }
+            }
+        },
+
+        hideSpinner: function(id) {
+            hide(getSpinner(id));
+        },
+
+        showSpinner: function(id) {
+            show(getSpinner(id));
+        },
+
+        generatePreview: function(id, fileOrBlob) {
+            var thumbnail = getThumbnail(id),
+                spec = {
+                    maxSize: thumbnailMaxSize,
+                    scale: true,
+                    orient: true
+                };
+
+            if (qq.supportedFeatures.imagePreviews) {
+                previewGeneration[id] = new qq.Promise();
+
+                if (thumbnail) {
+                    displayWaitingImg(thumbnail);
+                    return options.imageGenerator.generate(fileOrBlob, thumbnail, spec).then(
+                        function() {
+                            show(thumbnail);
+                            previewGeneration[id].success();
+                        },
+                        function() {
+                            previewGeneration[id].failure();
+
+                            // Display the "not available" placeholder img only if we are
+                            // not expecting a thumbnail at a later point, such as in a server response.
+                            if (!options.placeholders.waitUntilUpdate) {
+                                maybeSetDisplayNotAvailableImg(id, thumbnail);
+                            }
+                        });
+                }
+            }
+            else if (thumbnail) {
+                displayWaitingImg(thumbnail);
+            }
+        },
+
+        updateThumbnail: function(id, thumbnailUrl, showWaitingImg) {
+            var thumbnail = getThumbnail(id),
+                spec = {
+                    maxSize: thumbnailMaxSize,
+                    scale: serverScale
+                };
+
+            if (thumbnail) {
+                if (thumbnailUrl) {
+                    if (showWaitingImg) {
+                        displayWaitingImg(thumbnail);
+                    }
+
+                    return options.imageGenerator.generate(thumbnailUrl, thumbnail, spec).then(
+                        function() {
+                            show(thumbnail);
+                        },
+                        function() {
+                            maybeSetDisplayNotAvailableImg(id, thumbnail);
+                        }
+                    );
+                }
+                else {
+                    maybeSetDisplayNotAvailableImg(id, thumbnail);
+                }
+            }
+        }
+    });
+};
+
+/*globals qq*/
+/**
+ * Upload handler used that assumes the current user agent does not have any support for the
+ * File API, and, therefore, makes use of iframes and forms to submit the files directly to
+ * a generic server.
+ *
+ * @param options Options passed from the base handler
+ * @param proxy Callbacks & methods used to query for or push out data/changes
+ */
+qq.UploadHandlerForm = function(options, proxy) {
+    "use strict";
+
+    var fileState = [],
+        uploadCompleteCallback = proxy.onUploadComplete,
+        onUuidChanged = proxy.onUuidChanged,
+        getName = proxy.getName,
+        getUuid = proxy.getUuid,
+        uploadComplete = uploadCompleteCallback,
+        log = proxy.log,
+        internalApi = {};
+
+
+    /**
+     * Returns json object received by iframe from server.
+     */
+    function getIframeContentJson(id, iframe) {
+        /*jshint evil: true*/
+
+        var response;
+
+        //IE may throw an "access is denied" error when attempting to access contentDocument on the iframe in some cases
+        try {
+            // iframe.contentWindow.document - for IE<7
+            var doc = iframe.contentDocument || iframe.contentWindow.document,
+                innerHtml = doc.body.innerHTML;
+
+            log("converting iframe's innerHTML to JSON");
+            log("innerHTML = " + innerHtml);
+            //plain text response may be wrapped in <pre> tag
+            if (innerHtml && innerHtml.match(/^<pre/i)) {
+                innerHtml = doc.body.firstChild.firstChild.nodeValue;
+            }
+
+            response = internalApi.parseJsonResponse(id, innerHtml);
+        }
+        catch(error) {
+            log("Error when attempting to parse form upload response (" + error.message + ")", "error");
+            response = {success: false};
+        }
+
+        return response;
+    }
+
+    /**
+     * Creates form, that will be submitted to iframe
+     */
+    function createForm(id, iframe){
+        var params = options.paramsStore.getParams(id),
+            method = options.demoMode ? "GET" : "POST",
+            endpoint = options.endpointStore.getEndpoint(id),
+            name = getName(id);
+
+        params[options.uuidName] = getUuid(id);
+        params[options.filenameParam] = name;
+
+        return internalApi.initFormForUpload({
+            method: method,
+            endpoint: endpoint,
+            params: params,
+            paramsInBody: options.paramsInBody,
+            targetName: iframe.name
+        });
+    }
+
+    qq.extend(this, new qq.UploadHandlerFormApi(internalApi,
+        {fileState: fileState, isCors: options.cors.expected, inputName: options.inputName},
+        {onCancel: options.onCancel, onUuidChanged: onUuidChanged, getName: getName, getUuid: getUuid, log: log}));
+
+    qq.extend(this, {
+        upload: function(id) {
+            var input = fileState[id].input,
+                fileName = getName(id),
+                iframe = internalApi.createIframe(id),
+                form;
+
+            if (!input){
+                throw new Error("file with passed id was not added, or already uploaded or canceled");
+            }
+
+            options.onUpload(id, getName(id));
+
+            form = createForm(id, iframe);
+            form.appendChild(input);
+
+            internalApi.attachLoadEvent(iframe, function(responseFromMessage){
+                log("iframe loaded");
+
+                var response = responseFromMessage ? responseFromMessage : getIframeContentJson(id, iframe);
+
+                internalApi.detachLoadEvent(id);
+
+                //we can't remove an iframe if the iframe doesn't belong to the same domain
+                if (!options.cors.expected) {
+                    qq(iframe).remove();
+                }
+
+                if (!response.success) {
+                    if (options.onAutoRetry(id, fileName, response)) {
+                        return;
+                    }
+                }
+                options.onComplete(id, fileName, response);
+                uploadComplete(id);
+            });
+
+            log("Sending upload request for " + id);
+            form.submit();
+            qq(form).remove();
+        }
+    });
+};
+
+/*globals qq*/
+/**
+ * Upload handler used to upload to traditional endpoints.  It depends on File API support, and, therefore,
+ * makes use of `XMLHttpRequest` level 2 to upload `File`s and `Blob`s to a generic server.
+ *
+ * @param spec Options passed from the base handler
+ * @param proxy Callbacks & methods used to query for or push out data/changes
+ */
+qq.UploadHandlerXhr = function(spec, proxy) {
+    "use strict";
+
+    var uploadComplete = proxy.onUploadComplete,
+        onUuidChanged = proxy.onUuidChanged,
+        getName = proxy.getName,
+        getUuid = proxy.getUuid,
+        getSize = proxy.getSize,
+        log = proxy.log,
+        fileState = [],
+        cookieItemDelimiter = "|",
+        chunkFiles = spec.chunking.enabled && qq.supportedFeatures.chunking,
+        resumeEnabled = spec.resume.enabled && chunkFiles && qq.supportedFeatures.resume,
+        multipart = spec.forceMultipart || spec.paramsInBody,
+        internalApi = {},
+        publicApi = this,
+        resumeId;
+
+    function getResumeId() {
+        if (spec.resume.id !== null &&
+            spec.resume.id !== undefined &&
+            !qq.isFunction(spec.resume.id) &&
+            !qq.isObject(spec.resume.id)) {
+
+            return spec.resume.id;
+        }
+    }
+
+    resumeId = getResumeId();
+
+    function addChunkingSpecificParams(id, params, chunkData) {
+        var size = getSize(id),
+            name = getName(id);
+
+        params[spec.chunking.paramNames.partIndex] = chunkData.part;
+        params[spec.chunking.paramNames.partByteOffset] = chunkData.start;
+        params[spec.chunking.paramNames.chunkSize] = chunkData.size;
+        params[spec.chunking.paramNames.totalParts] = chunkData.count;
+        params[spec.totalFileSizeName] = size;
+
+        /**
+         * When a Blob is sent in a multipart request, the filename value in the content-disposition header is either "blob"
+         * or an empty string.  So, we will need to include the actual file name as a param in this case.
+         */
+        if (multipart) {
+            params[spec.filenameParam] = name;
+        }
+    }
+
+    function addResumeSpecificParams(params) {
+        params[spec.resume.paramNames.resuming] = true;
+    }
+
+    function getChunk(fileOrBlob, startByte, endByte) {
+        if (fileOrBlob.slice) {
+            return fileOrBlob.slice(startByte, endByte);
+        }
+        else if (fileOrBlob.mozSlice) {
+            return fileOrBlob.mozSlice(startByte, endByte);
+        }
+        else if (fileOrBlob.webkitSlice) {
+            return fileOrBlob.webkitSlice(startByte, endByte);
+        }
+    }
+
+    function setParamsAndGetEntityToSend(params, xhr, fileOrBlob, id) {
+        var formData = new FormData(),
+            method = spec.demoMode ? "GET" : "POST",
+            endpoint = spec.endpointStore.getEndpoint(id),
+            url = endpoint,
+            name = getName(id),
+            size = getSize(id);
+
+        params[spec.uuidName] = getUuid(id);
+        params[spec.filenameParam] = name;
+
+
+        if (multipart) {
+            params[spec.totalFileSizeName] = size;
+        }
+
+        //build query string
+        if (!spec.paramsInBody) {
+            if (!multipart) {
+                params[spec.inputName] = name;
+            }
+            url = qq.obj2url(params, endpoint);
+        }
+
+        xhr.open(method, url, true);
+
+        if (spec.cors.expected && spec.cors.sendCredentials) {
+            xhr.withCredentials = true;
+        }
+
+        if (multipart) {
+            if (spec.paramsInBody) {
+                qq.obj2FormData(params, formData);
+            }
+
+            formData.append(spec.inputName, fileOrBlob);
+            return formData;
+        }
+
+        return fileOrBlob;
+    }
+
+    function setHeaders(id, xhr) {
+        var extraHeaders = spec.customHeaders,
+            fileOrBlob = fileState[id].file || fileState[id].blobData.blob;
+
+        xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
+        xhr.setRequestHeader("Cache-Control", "no-cache");
+
+        if (!multipart) {
+            xhr.setRequestHeader("Content-Type", "application/octet-stream");
+            //NOTE: return mime type in xhr works on chrome 16.0.9 firefox 11.0a2
+            xhr.setRequestHeader("X-Mime-Type", fileOrBlob.type);
+        }
+
+        qq.each(extraHeaders, function(name, val) {
+            xhr.setRequestHeader(name, val);
+        });
+    }
+
+    function handleCompletedItem(id, response, xhr) {
+        var name = getName(id),
+            size = getSize(id);
+
+        fileState[id].attemptingResume = false;
+
+        spec.onProgress(id, name, size, size);
+        spec.onComplete(id, name, response, xhr);
+
+        if (fileState[id]) {
+            delete fileState[id].xhr;
+        }
+
+        uploadComplete(id);
+    }
+
+    function uploadNextChunk(id) {
+        var chunkIdx = fileState[id].remainingChunkIdxs[0],
+            chunkData = internalApi.getChunkData(id, chunkIdx),
+            xhr = internalApi.createXhr(id),
+            size = getSize(id),
+            name = getName(id),
+            toSend, params;
+
+        if (fileState[id].loaded === undefined) {
+            fileState[id].loaded = 0;
+        }
+
+        if (resumeEnabled && fileState[id].file) {
+            persistChunkData(id, chunkData);
+        }
+
+        xhr.onreadystatechange = getReadyStateChangeHandler(id, xhr);
+
+        xhr.upload.onprogress = function(e) {
+            if (e.lengthComputable) {
+                var totalLoaded = e.loaded + fileState[id].loaded,
+                    estTotalRequestsSize = calcAllRequestsSizeForChunkedUpload(id, chunkIdx, e.total);
+
+                spec.onProgress(id, name, totalLoaded, estTotalRequestsSize);
+            }
+        };
+
+        spec.onUploadChunk(id, name, internalApi.getChunkDataForCallback(chunkData));
+
+        params = spec.paramsStore.getParams(id);
+        addChunkingSpecificParams(id, params, chunkData);
+
+        if (fileState[id].attemptingResume) {
+            addResumeSpecificParams(params);
+        }
+
+        toSend = setParamsAndGetEntityToSend(params, xhr, chunkData.blob, id);
+        setHeaders(id, xhr);
+
+        log("Sending chunked upload request for item " + id + ": bytes " + (chunkData.start+1) + "-" + chunkData.end + " of " + size);
+        xhr.send(toSend);
+    }
+
+    function calcAllRequestsSizeForChunkedUpload(id, chunkIdx, requestSize) {
+        var chunkData = internalApi.getChunkData(id, chunkIdx),
+            blobSize = chunkData.size,
+            overhead = requestSize - blobSize,
+            size = getSize(id),
+            chunkCount = chunkData.count,
+            initialRequestOverhead = fileState[id].initialRequestOverhead,
+            overheadDiff = overhead - initialRequestOverhead;
+
+        fileState[id].lastRequestOverhead = overhead;
+
+        if (chunkIdx === 0) {
+            fileState[id].lastChunkIdxProgress = 0;
+            fileState[id].initialRequestOverhead = overhead;
+            fileState[id].estTotalRequestsSize = size + (chunkCount * overhead);
+        }
+        else if (fileState[id].lastChunkIdxProgress !== chunkIdx) {
+            fileState[id].lastChunkIdxProgress = chunkIdx;
+            fileState[id].estTotalRequestsSize += overheadDiff;
+        }
+
+        return fileState[id].estTotalRequestsSize;
+    }
+
+    function getLastRequestOverhead(id) {
+        if (multipart) {
+            return fileState[id].lastRequestOverhead;
+        }
+        else {
+            return 0;
+        }
+    }
+
+    function handleSuccessfullyCompletedChunk(id, response, xhr) {
+        var chunkIdx = fileState[id].remainingChunkIdxs.shift(),
+            chunkData = internalApi.getChunkData(id, chunkIdx);
+
+        fileState[id].attemptingResume = false;
+        fileState[id].loaded += chunkData.size + getLastRequestOverhead(id);
+
+        spec.onUploadChunkSuccess(id, internalApi.getChunkDataForCallback(chunkData), response, xhr);
+
+        if (fileState[id].remainingChunkIdxs.length > 0) {
+            uploadNextChunk(id);
+        }
+        else {
+            if (resumeEnabled) {
+                deletePersistedChunkData(id);
+            }
+
+            handleCompletedItem(id, response, xhr);
+        }
+    }
+
+    function isErrorResponse(xhr, response) {
+        return xhr.status !== 200 || !response.success || response.reset;
+    }
+
+    function parseResponse(id, xhr) {
+        var response;
+
+        try {
+            log(qq.format("Received response status {} with body: {}", xhr.status, xhr.responseText));
+
+            response = qq.parseJson(xhr.responseText);
+
+            if (response.newUuid !== undefined) {
+                onUuidChanged(id, response.newUuid);
+            }
+        }
+        catch(error) {
+            log("Error when attempting to parse xhr response text (" + error.message + ")", "error");
+            response = {};
+        }
+
+        return response;
+    }
+
+    function handleResetResponse(id) {
+        log("Server has ordered chunking effort to be restarted on next attempt for item ID " + id, "error");
+
+        if (resumeEnabled) {
+            deletePersistedChunkData(id);
+            fileState[id].attemptingResume = false;
+        }
+
+        fileState[id].remainingChunkIdxs = [];
+        delete fileState[id].loaded;
+        delete fileState[id].estTotalRequestsSize;
+        delete fileState[id].initialRequestOverhead;
+    }
+
+    function handleResetResponseOnResumeAttempt(id) {
+        fileState[id].attemptingResume = false;
+        log("Server has declared that it cannot handle resume for item ID " + id + " - starting from the first chunk", "error");
+        handleResetResponse(id);
+        publicApi.upload(id, true);
+    }
+
+    function handleNonResetErrorResponse(id, response, xhr) {
+        var name = getName(id);
+
+        if (spec.onAutoRetry(id, name, response, xhr)) {
+            return;
+        }
+        else {
+            handleCompletedItem(id, response, xhr);
+        }
+    }
+
+    function onComplete(id, xhr) {
+        var state = fileState[id],
+            attemptingResume = state && state.attemptingResume,
+            paused = state && state.paused,
+            response;
+
+        // The logic in this function targets uploads that have not been paused or canceled,
+        // so return at once if this is not the case.
+        if (!state || paused) {
+            return;
+        }
+
+        log("xhr - server response received for " + id);
+        log("responseText = " + xhr.responseText);
+        response = parseResponse(id, xhr);
+
+        if (isErrorResponse(xhr, response)) {
+            if (response.reset) {
+                handleResetResponse(id);
+            }
+
+            if (attemptingResume && response.reset) {
+                handleResetResponseOnResumeAttempt(id);
+            }
+            else {
+                handleNonResetErrorResponse(id, response, xhr);
+            }
+        }
+        else if (chunkFiles) {
+            handleSuccessfullyCompletedChunk(id, response, xhr);
+        }
+        else {
+            handleCompletedItem(id, response, xhr);
+        }
+    }
+
+    function getReadyStateChangeHandler(id, xhr) {
+        return function() {
+            if (xhr.readyState === 4) {
+                onComplete(id, xhr);
+            }
+        };
+    }
+
+    function persistChunkData(id, chunkData) {
+        var fileUuid = getUuid(id),
+            lastByteSent = fileState[id].loaded,
+            initialRequestOverhead = fileState[id].initialRequestOverhead,
+            estTotalRequestsSize = fileState[id].estTotalRequestsSize,
+            cookieName = getChunkDataCookieName(id),
+            cookieValue = fileUuid +
+                cookieItemDelimiter + chunkData.part +
+                cookieItemDelimiter + lastByteSent +
+                cookieItemDelimiter + initialRequestOverhead +
+                cookieItemDelimiter + estTotalRequestsSize,
+            cookieExpDays = spec.resume.cookiesExpireIn;
+
+        qq.setCookie(cookieName, cookieValue, cookieExpDays);
+    }
+
+    function deletePersistedChunkData(id) {
+        if (fileState[id].file) {
+            var cookieName = getChunkDataCookieName(id);
+            qq.deleteCookie(cookieName);
+        }
+    }
+
+    function getPersistedChunkData(id) {
+        var chunkCookieValue = qq.getCookie(getChunkDataCookieName(id)),
+            filename = getName(id),
+            sections, uuid, partIndex, lastByteSent, initialRequestOverhead, estTotalRequestsSize;
+
+        if (chunkCookieValue) {
+            sections = chunkCookieValue.split(cookieItemDelimiter);
+
+            if (sections.length === 5) {
+                uuid = sections[0];
+                partIndex = parseInt(sections[1], 10);
+                lastByteSent = parseInt(sections[2], 10);
+                initialRequestOverhead = parseInt(sections[3], 10);
+                estTotalRequestsSize = parseInt(sections[4], 10);
+
+                return {
+                    uuid: uuid,
+                    part: partIndex,
+                    lastByteSent: lastByteSent,
+                    initialRequestOverhead: initialRequestOverhead,
+                    estTotalRequestsSize: estTotalRequestsSize
+                };
+            }
+            else {
+                log("Ignoring previously stored resume/chunk cookie for " + filename + " - old cookie format", "warn");
+            }
+        }
+    }
+
+    function getChunkDataCookieName(id) {
+        var filename = getName(id),
+            fileSize = getSize(id),
+            maxChunkSize = spec.chunking.partSize,
+            cookieName;
+
+        cookieName = "qqfilechunk" + cookieItemDelimiter + encodeURIComponent(filename) + cookieItemDelimiter + fileSize + cookieItemDelimiter + maxChunkSize;
+
+        if (resumeId !== undefined) {
+            cookieName += cookieItemDelimiter + resumeId;
+        }
+
+        return cookieName;
+    }
+
+    function calculateRemainingChunkIdxsAndUpload(id, firstChunkIndex) {
+        var currentChunkIndex;
+
+        for (currentChunkIndex = internalApi.getTotalChunks(id)-1; currentChunkIndex >= firstChunkIndex; currentChunkIndex-=1) {
+            fileState[id].remainingChunkIdxs.unshift(currentChunkIndex);
+        }
+
+        uploadNextChunk(id);
+    }
+
+    function onResumeSuccess(id, name, firstChunkIndex, persistedChunkInfoForResume) {
+        firstChunkIndex = persistedChunkInfoForResume.part;
+        fileState[id].loaded = persistedChunkInfoForResume.lastByteSent;
+        fileState[id].estTotalRequestsSize = persistedChunkInfoForResume.estTotalRequestsSize;
+        fileState[id].initialRequestOverhead = persistedChunkInfoForResume.initialRequestOverhead;
+        fileState[id].attemptingResume = true;
+        log("Resuming " + name + " at partition index " + firstChunkIndex);
+
+        calculateRemainingChunkIdxsAndUpload(id, firstChunkIndex);
+    }
+
+    function handlePossibleResumeAttempt(id, persistedChunkInfoForResume, firstChunkIndex) {
+        var name = getName(id),
+            firstChunkDataForResume = internalApi.getChunkData(id, persistedChunkInfoForResume.part),
+            onResumeRetVal;
+
+        onResumeRetVal = spec.onResume(id, name, internalApi.getChunkDataForCallback(firstChunkDataForResume));
+        if (onResumeRetVal instanceof qq.Promise) {
+            log("Waiting for onResume promise to be fulfilled for " + id);
+            onResumeRetVal.then(
+                function() {
+                    onResumeSuccess(id, name, firstChunkIndex, persistedChunkInfoForResume);
+                },
+                function() {
+                    log("onResume promise fulfilled - failure indicated.  Will not resume.");
+                    calculateRemainingChunkIdxsAndUpload(id, firstChunkIndex);
+                }
+            );
+        }
+        else if (onResumeRetVal !== false) {
+            onResumeSuccess(id, name, firstChunkIndex, persistedChunkInfoForResume);
+        }
+        else {
+            log("onResume callback returned false.  Will not resume.");
+            calculateRemainingChunkIdxsAndUpload(id, firstChunkIndex);
+        }
+    }
+
+    function handleFileChunkingUpload(id, retry) {
+        var firstChunkIndex = 0,
+            persistedChunkInfoForResume;
+
+        if (!fileState[id].remainingChunkIdxs || fileState[id].remainingChunkIdxs.length === 0) {
+            fileState[id].remainingChunkIdxs = [];
+
+            if (resumeEnabled && !retry && fileState[id].file) {
+                persistedChunkInfoForResume = getPersistedChunkData(id);
+                if (persistedChunkInfoForResume) {
+                    handlePossibleResumeAttempt(id, persistedChunkInfoForResume, firstChunkIndex);
+                }
+                else {
+                    calculateRemainingChunkIdxsAndUpload(id, firstChunkIndex);
+                }
+            }
+            else {
+                calculateRemainingChunkIdxsAndUpload(id, firstChunkIndex);
+            }
+        }
+        else {
+            uploadNextChunk(id);
+        }
+    }
+
+    function handleStandardFileUpload(id) {
+        var fileOrBlob = fileState[id].file || fileState[id].blobData.blob,
+            name = getName(id),
+            xhr, params, toSend;
+
+        fileState[id].loaded = 0;
+
+        xhr = internalApi.createXhr(id);
+
+        xhr.upload.onprogress = function(e){
+            if (e.lengthComputable){
+                fileState[id].loaded = e.loaded;
+                spec.onProgress(id, name, e.loaded, e.total);
+            }
+        };
+
+        xhr.onreadystatechange = getReadyStateChangeHandler(id, xhr);
+
+        params = spec.paramsStore.getParams(id);
+        toSend = setParamsAndGetEntityToSend(params, xhr, fileOrBlob, id);
+        setHeaders(id, xhr);
+
+        log("Sending upload request for " + id);
+        xhr.send(toSend);
+    }
+
+    function handleUploadSignal(id, retry) {
+        var name = getName(id);
+
+        if (publicApi.isValid(id)) {
+            spec.onUpload(id, name);
+
+            if (chunkFiles) {
+                handleFileChunkingUpload(id, retry);
+            }
+            else {
+                handleStandardFileUpload(id);
+            }
+        }
+    }
+
+
+    qq.extend(this, new qq.UploadHandlerXhrApi(
+        internalApi,
+        {fileState: fileState, chunking: chunkFiles ? spec.chunking : null},
+        {onUpload: handleUploadSignal, onCancel: spec.onCancel, onUuidChanged: onUuidChanged, getName: getName,
+            getSize: getSize, getUuid: getUuid, log: log}
+    ));
+
+    // Base XHR API overrides
+    qq.override(this, function(super_) {
+        return {
+            add: function(id, fileOrBlobData) {
+                var persistedChunkData;
+
+                super_.add.apply(this, arguments);
+
+                if (resumeEnabled) {
+                    persistedChunkData = getPersistedChunkData(id);
+
+                    if (persistedChunkData) {
+                        onUuidChanged(id, persistedChunkData.uuid);
+                    }
+                }
+
+                return id;
+            },
+
+            getResumableFilesData: function() {
+                var matchingCookieNames = [],
+                    resumableFilesData = [];
+
+                if (chunkFiles && resumeEnabled) {
+                    if (resumeId === undefined) {
+                        matchingCookieNames = qq.getCookieNames(new RegExp("^qqfilechunk\\" + cookieItemDelimiter + ".+\\" +
+                            cookieItemDelimiter + "\\d+\\" + cookieItemDelimiter + spec.chunking.partSize + "="));
+                    }
+                    else {
+                        matchingCookieNames = qq.getCookieNames(new RegExp("^qqfilechunk\\" + cookieItemDelimiter + ".+\\" +
+                            cookieItemDelimiter + "\\d+\\" + cookieItemDelimiter + spec.chunking.partSize + "\\" +
+                            cookieItemDelimiter + resumeId + "="));
+                    }
+
+                    qq.each(matchingCookieNames, function(idx, cookieName) {
+                        var cookiesNameParts = cookieName.split(cookieItemDelimiter);
+                        var cookieValueParts = qq.getCookie(cookieName).split(cookieItemDelimiter);
+
+                        resumableFilesData.push({
+                            name: decodeURIComponent(cookiesNameParts[1]),
+                            size: cookiesNameParts[2],
+                            uuid: cookieValueParts[0],
+                            partIdx: cookieValueParts[1]
+                        });
+                    });
+
+                    return resumableFilesData;
+                }
+                return [];
+            },
+
+            expunge: function(id) {
+                if (resumeEnabled) {
+                    deletePersistedChunkData(id);
+                }
+
+                super_.expunge(id);
+            }
+        };
+    });
+};
+
+/*globals qq*/
+qq.PasteSupport = function(o) {
+    "use strict";
+
+    var options, detachPasteHandler;
+
+    options = {
+        targetElement: null,
+        callbacks: {
+            log: function(message, level) {},
+            pasteReceived: function(blob) {}
+        }
+    };
+
+    function isImage(item) {
+        return item.type &&
+            item.type.indexOf("image/") === 0;
+    }
+
+    function registerPasteHandler() {
+        qq(options.targetElement).attach("paste", function(event) {
+            var clipboardData = event.clipboardData;
+
+            if (clipboardData) {
+                qq.each(clipboardData.items, function(idx, item) {
+                    if (isImage(item)) {
+                        var blob = item.getAsFile();
+                        options.callbacks.pasteReceived(blob);
+                    }
+                });
+            }
+        });
+    }
+
+    function unregisterPasteHandler() {
+        if (detachPasteHandler) {
+            detachPasteHandler();
+        }
+    }
+
+    qq.extend(options, o);
+    registerPasteHandler();
+
+    qq.extend(this, {
+        reset: function() {
+            unregisterPasteHandler();
+        }
+    });
+};
+
+/*globals qq, document, CustomEvent*/
+qq.DragAndDrop = function(o) {
+    "use strict";
+
+    var options,
+        HIDE_ZONES_EVENT_NAME = "qq-hidezones",
+        HIDE_BEFORE_ENTER_ATTR = "qq-hide-dropzone",
+        uploadDropZones = [],
+        droppedFiles = [],
+        disposeSupport = new qq.DisposeSupport();
+
+    options = {
+        dropZoneElements: [],
+        allowMultipleItems: true,
+        classes: {
+            dropActive: null
+        },
+        callbacks: new qq.DragAndDrop.callbacks()
+    };
+
+    qq.extend(options, o, true);
+
+    function uploadDroppedFiles(files, uploadDropZone) {
+        // We need to convert the `FileList` to an actual `Array` to avoid iteration issues
+        var filesAsArray = Array.prototype.slice.call(files);
+
+        options.callbacks.dropLog("Grabbed " + files.length + " dropped files.");
+        uploadDropZone.dropDisabled(false);
+        options.callbacks.processingDroppedFilesComplete(filesAsArray, uploadDropZone.getElement());
+    }
+
+    function traverseFileTree(entry) {
+        var dirReader,
+            parseEntryPromise = new qq.Promise();
+
+        if (entry.isFile) {
+            entry.file(function(file) {
+                droppedFiles.push(file);
+                parseEntryPromise.success();
+            },
+            function(fileError) {
+                options.callbacks.dropLog("Problem parsing '" + entry.fullPath + "'.  FileError code " + fileError.code + ".", "error");
+                parseEntryPromise.failure();
+            });
+        }
+        else if (entry.isDirectory) {
+            dirReader = entry.createReader();
+            dirReader.readEntries(function(entries) {
+                var entriesLeft = entries.length;
+
+                qq.each(entries, function(idx, entry) {
+                    traverseFileTree(entry).done(function() {
+                        entriesLeft-=1;
+
+                        if (entriesLeft === 0) {
+                            parseEntryPromise.success();
+                        }
+                    });
+                });
+
+                if (!entries.length) {
+                    parseEntryPromise.success();
+                }
+            }, function(fileError) {
+                options.callbacks.dropLog("Problem parsing '" + entry.fullPath + "'.  FileError code " + fileError.code + ".", "error");
+                parseEntryPromise.failure();
+            });
+        }
+
+        return parseEntryPromise;
+    }
+
+    function handleDataTransfer(dataTransfer, uploadDropZone) {
+        var pendingFolderPromises = [],
+            handleDataTransferPromise = new qq.Promise();
+
+        options.callbacks.processingDroppedFiles();
+        uploadDropZone.dropDisabled(true);
+
+        if (dataTransfer.files.length > 1 && !options.allowMultipleItems) {
+            options.callbacks.processingDroppedFilesComplete([]);
+            options.callbacks.dropError("tooManyFilesError", "");
+            uploadDropZone.dropDisabled(false);
+            handleDataTransferPromise.failure();
+        }
+        else {
+            droppedFiles = [];
+
+            if (qq.isFolderDropSupported(dataTransfer)) {
+                qq.each(dataTransfer.items, function(idx, item) {
+                    var entry = item.webkitGetAsEntry();
+
+                    if (entry) {
+                        //due to a bug in Chrome's File System API impl - #149735
+                        if (entry.isFile) {
+                            droppedFiles.push(item.getAsFile());
+                        }
+
+                        else {
+                            pendingFolderPromises.push(traverseFileTree(entry).done(function() {
+                                pendingFolderPromises.pop();
+                                if (pendingFolderPromises.length === 0) {
+                                    handleDataTransferPromise.success();
+                                }
+                            }));
+                        }
+                    }
+                });
+            }
+            else {
+                droppedFiles = dataTransfer.files;
+            }
+
+            if (pendingFolderPromises.length === 0) {
+                handleDataTransferPromise.success();
+            }
+        }
+
+        return handleDataTransferPromise;
+    }
+
+    function setupDropzone(dropArea) {
+        var dropZone = new qq.UploadDropZone({
+            HIDE_ZONES_EVENT_NAME: HIDE_ZONES_EVENT_NAME,
+            element: dropArea,
+            onEnter: function(e){
+                qq(dropArea).addClass(options.classes.dropActive);
+                e.stopPropagation();
+            },
+            onLeaveNotDescendants: function(e){
+                qq(dropArea).removeClass(options.classes.dropActive);
+            },
+            onDrop: function(e){
+                handleDataTransfer(e.dataTransfer, dropZone).done(function() {
+                    uploadDroppedFiles(droppedFiles, dropZone);
+                });
+            }
+        });
+
+        disposeSupport.addDisposer(function() {
+            dropZone.dispose();
+        });
+
+        qq(dropArea).hasAttribute(HIDE_BEFORE_ENTER_ATTR) && qq(dropArea).hide();
+
+        uploadDropZones.push(dropZone);
+
+        return dropZone;
+    }
+
+    function isFileDrag(dragEvent) {
+        var fileDrag;
+
+        qq.each(dragEvent.dataTransfer.types, function(key, val) {
+            if (val === "Files") {
+                fileDrag = true;
+                return false;
+            }
+        });
+
+        return fileDrag;
+    }
+
+    function leavingDocumentOut(e) {
+        /* jshint -W041, eqeqeq:false */
+            // null coords for Chrome and Safari Windows
+        return ((qq.chrome() || (qq.safari() && qq.windows())) && e.clientX == 0 && e.clientY == 0) ||
+            // null e.relatedTarget for Firefox
+            (qq.firefox() && !e.relatedTarget);
+    }
+
+    function setupDragDrop() {
+        var dropZones = options.dropZoneElements;
+
+        qq.each(dropZones, function(idx, dropZone) {
+            var uploadDropZone = setupDropzone(dropZone);
+
+            // IE <= 9 does not support the File API used for drag+drop uploads
+            if (dropZones.length && (!qq.ie() || qq.ie10())) {
+                disposeSupport.attach(document, "dragenter", function(e) {
+                    if (!uploadDropZone.dropDisabled() && isFileDrag(e)) {
+                        qq.each(dropZones, function(idx, dropZone) {
+                            // We can't apply styles to non-HTMLElements, since they lack the `style` property
+                            if (dropZone instanceof HTMLElement) {
+                                qq(dropZone).css({display: "block"});
+                            }
+                        });
+                    }
+                });
+            }
+        });
+
+        disposeSupport.attach(document, "dragleave", function(e) {
+            if (leavingDocumentOut(e)) {
+                qq.each(dropZones, function(idx, dropZone) {
+                    qq(dropZone).hasAttribute(HIDE_BEFORE_ENTER_ATTR) && qq(dropZone).hide();
+                });
+            }
+        });
+
+        disposeSupport.attach(document, "drop", function(e){
+            qq.each(dropZones, function(idx, dropZone) {
+                qq(dropZone).hasAttribute(HIDE_BEFORE_ENTER_ATTR) && qq(dropZone).hide();
+            });
+            e.preventDefault();
+        });
+
+        disposeSupport.attach(document, HIDE_ZONES_EVENT_NAME, function(e) {
+            qq.each(options.dropZoneElements, function(idx, zone) {
+                qq(zone).hasAttribute(HIDE_BEFORE_ENTER_ATTR) && qq(zone).hide();
+                qq(zone).removeClass(options.classes.dropActive);
+            });
+        });
+    }
+
+    setupDragDrop();
+
+    qq.extend(this, {
+        setupExtraDropzone: function(element) {
+            options.dropZoneElements.push(element);
+            setupDropzone(element);
+        },
+
+        removeDropzone: function(element) {
+            var i,
+                dzs = options.dropZoneElements;
+
+            for(i in dzs) {
+                if (dzs[i] === element) {
+                    return dzs.splice(i, 1);
+                }
+            }
+        },
+
+        dispose: function() {
+            disposeSupport.dispose();
+            qq.each(uploadDropZones, function(idx, dropZone) {
+                dropZone.dispose();
+            });
+        }
+    });
+};
+
+qq.DragAndDrop.callbacks = function() {
+    "use strict";
+
+    return {
+        processingDroppedFiles: function() {},
+        processingDroppedFilesComplete: function(files, targetEl) {},
+        dropError: function(code, errorSpecifics) {
+            qq.log("Drag & drop error code '" + code + " with these specifics: '" + errorSpecifics + "'", "error");
+        },
+        dropLog: function(message, level) {
+            qq.log(message, level);
+        }
+    };
+};
+
+qq.UploadDropZone = function(o){
+    "use strict";
+
+    var disposeSupport = new qq.DisposeSupport(),
+        options, element, preventDrop, dropOutsideDisabled;
+
+    options = {
+        element: null,
+        onEnter: function(e){},
+        onLeave: function(e){},
+        // is not fired when leaving element by hovering descendants
+        onLeaveNotDescendants: function(e){},
+        onDrop: function(e){}
+    };
+
+    qq.extend(options, o);
+    element = options.element;
+
+    function dragover_should_be_canceled(){
+        return qq.safari() || (qq.firefox() && qq.windows());
+    }
+
+    function disableDropOutside(e){
+        // run only once for all instances
+        if (!dropOutsideDisabled ){
+
+            // for these cases we need to catch onDrop to reset dropArea
+            if (dragover_should_be_canceled){
+                disposeSupport.attach(document, "dragover", function(e){
+                    e.preventDefault();
+                });
+            } else {
+                disposeSupport.attach(document, "dragover", function(e){
+                    if (e.dataTransfer){
+                        e.dataTransfer.dropEffect = "none";
+                        e.preventDefault();
+                    }
+                });
+            }
+
+            dropOutsideDisabled = true;
+        }
+    }
+
+    function isValidFileDrag(e){
+        // e.dataTransfer currently causing IE errors
+        // IE9 does NOT support file API, so drag-and-drop is not possible
+        if (qq.ie() && !qq.ie10()) {
+            return false;
+        }
+
+        var effectTest, dt = e.dataTransfer,
+        // do not check dt.types.contains in webkit, because it crashes safari 4
+        isSafari = qq.safari();
+
+        // dt.effectAllowed is none in Safari 5
+        // dt.types.contains check is for firefox
+
+        // dt.effectAllowed crashes IE11 when files have been dragged from
+        // the filesystem
+        effectTest = (qq.ie10() || qq.ie11()) ? true : dt.effectAllowed !== "none";
+        return dt && effectTest && (dt.files || (!isSafari && dt.types.contains && dt.types.contains("Files")));
+    }
+
+    function isOrSetDropDisabled(isDisabled) {
+        if (isDisabled !== undefined) {
+            preventDrop = isDisabled;
+        }
+        return preventDrop;
+    }
+
+    function triggerHidezonesEvent() {
+        var hideZonesEvent;
+
+        function triggerUsingOldApi() {
+            hideZonesEvent = document.createEvent("Event");
+            hideZonesEvent.initEvent(options.HIDE_ZONES_EVENT_NAME, true, true);
+        }
+
+        if (window.CustomEvent) {
+            try {
+                hideZonesEvent = new CustomEvent(options.HIDE_ZONES_EVENT_NAME);
+            }
+            catch (err) {
+                triggerUsingOldApi();
+            }
+        }
+        else {
+            triggerUsingOldApi();
+        }
+
+        document.dispatchEvent(hideZonesEvent);
+    }
+
+    function attachEvents(){
+        disposeSupport.attach(element, "dragover", function(e){
+            if (!isValidFileDrag(e)) {
+                return;
+            }
+
+            // dt.effectAllowed crashes IE11 when files have been dragged from
+            // the filesystem
+            var effect = (qq.ie() || qq.ie11()) ? null : e.dataTransfer.effectAllowed;
+            if (effect === "move" || effect === "linkMove"){
+                e.dataTransfer.dropEffect = "move"; // for FF (only move allowed)
+            } else {
+                e.dataTransfer.dropEffect = "copy"; // for Chrome
+            }
+
+            e.stopPropagation();
+            e.preventDefault();
+        });
+
+        disposeSupport.attach(element, "dragenter", function(e){
+            if (!isOrSetDropDisabled()) {
+                if (!isValidFileDrag(e)) {
+                    return;
+                }
+                options.onEnter(e);
+            }
+        });
+
+        disposeSupport.attach(element, "dragleave", function(e){
+            if (!isValidFileDrag(e)) {
+                return;
+            }
+
+            options.onLeave(e);
+
+            var relatedTarget = document.elementFromPoint(e.clientX, e.clientY);
+            // do not fire when moving a mouse over a descendant
+            if (qq(this).contains(relatedTarget)) {
+                return;
+            }
+
+            options.onLeaveNotDescendants(e);
+        });
+
+        disposeSupport.attach(element, "drop", function(e) {
+            if (!isOrSetDropDisabled()) {
+                if (!isValidFileDrag(e)) {
+                    return;
+                }
+
+                e.preventDefault();
+                e.stopPropagation();
+                options.onDrop(e);
+
+                triggerHidezonesEvent();
+            }
+        });
+    }
+
+    disableDropOutside();
+    attachEvents();
+
+    qq.extend(this, {
+        dropDisabled: function(isDisabled) {
+            return isOrSetDropDisabled(isDisabled);
+        },
+
+        dispose: function() {
+            disposeSupport.dispose();
+        },
+
+        getElement: function() {
+            return element;
+        }
+    });
+};
+
+/*globals qq, XMLHttpRequest*/
+qq.DeleteFileAjaxRequester = function(o) {
+    "use strict";
+
+    var requester,
+        options = {
+            method: "DELETE",
+            uuidParamName: "qquuid",
+            endpointStore: {},
+            maxConnections: 3,
+            customHeaders: {},
+            paramsStore: {},
+            demoMode: false,
+            cors: {
+                expected: false,
+                sendCredentials: false
+            },
+            log: function(str, level) {},
+            onDelete: function(id) {},
+            onDeleteComplete: function(id, xhrOrXdr, isError) {}
+        };
+
+    qq.extend(options, o);
+
+    function getMandatedParams() {
+        if (options.method.toUpperCase() === "POST") {
+            return {
+                "_method": "DELETE"
+            };
+        }
+
+        return {};
+    }
+
+    requester = new qq.AjaxRequester({
+        validMethods: ["POST", "DELETE"],
+        method: options.method,
+        endpointStore: options.endpointStore,
+        paramsStore: options.paramsStore,
+        mandatedParams: getMandatedParams(),
+        maxConnections: options.maxConnections,
+        customHeaders: options.customHeaders,
+        demoMode: options.demoMode,
+        log: options.log,
+        onSend: options.onDelete,
+        onComplete: options.onDeleteComplete,
+        cors: options.cors
+    });
+
+
+    qq.extend(this, {
+        sendDelete: function(id, uuid, additionalMandatedParams) {
+            var additionalOptions = additionalMandatedParams || {};
+
+            options.log("Submitting delete file request for " + id);
+
+            if (options.method === "DELETE") {
+                requester.initTransport(id)
+                    .withPath(uuid)
+                    .withParams(additionalOptions)
+                    .send();
+            }
+            else {
+                additionalOptions[options.uuidParamName] = uuid;
+                requester.initTransport(id)
+                    .withParams(additionalOptions)
+                    .send();
+            }
+        }
+    });
+};
+
+/*global qq, define */
+/*jshint strict:false,bitwise:false,nonew:false,asi:true,-W064,-W116,-W089 */
+/**
+ * Mega pixel image rendering library for iOS6 Safari
+ *
+ * Fixes iOS6 Safari's image file rendering issue for large size image (over mega-pixel),
+ * which causes unexpected subsampling when drawing it in canvas.
+ * By using this library, you can safely render the image with proper stretching.
+ *
+ * Copyright (c) 2012 Shinichi Tomita <shinichi.tomita@gmail.com>
+ * Released under the MIT license
+ */
+(function() {
+
+  /**
+   * Detect subsampling in loaded image.
+   * In iOS, larger images than 2M pixels may be subsampled in rendering.
+   */
+  function detectSubsampling(img) {
+    var iw = img.naturalWidth, ih = img.naturalHeight;
+    if (iw * ih > 1024 * 1024) { // subsampling may happen over megapixel image
+      var canvas = document.createElement('canvas');
+      canvas.width = canvas.height = 1;
+      var ctx = canvas.getContext('2d');
+      ctx.drawImage(img, -iw + 1, 0);
+      // subsampled image becomes half smaller in rendering size.
+      // check alpha channel value to confirm image is covering edge pixel or not.
+      // if alpha value is 0 image is not covering, hence subsampled.
+      return ctx.getImageData(0, 0, 1, 1).data[3] === 0;
+    } else {
+      return false;
+    }
+  }
+
+  /**
+   * Detecting vertical squash in loaded image.
+   * Fixes a bug which squash image vertically while drawing into canvas for some images.
+   */
+  function detectVerticalSquash(img, iw, ih) {
+    var canvas = document.createElement('canvas');
+    canvas.width = 1;
+    canvas.height = ih;
+    var ctx = canvas.getContext('2d');
+    ctx.drawImage(img, 0, 0);
+    var data = ctx.getImageData(0, 0, 1, ih).data;
+    // search image edge pixel position in case it is squashed vertically.
+    var sy = 0;
+    var ey = ih;
+    var py = ih;
+    while (py > sy) {
+      var alpha = data[(py - 1) * 4 + 3];
+      if (alpha === 0) {
+        ey = py;
+      } else {
+        sy = py;
+      }
+      py = (ey + sy) >> 1;
+    }
+    var ratio = (py / ih);
+    return (ratio===0)?1:ratio;
+  }
+
+  /**
+   * Rendering image element (with resizing) and get its data URL
+   */
+  function renderImageToDataURL(img, options, doSquash) {
+    var canvas = document.createElement('canvas'),
+        mime = options.mime || "image/jpeg";
+
+    renderImageToCanvas(img, canvas, options, doSquash);
+    return canvas.toDataURL(mime, options.quality || 0.8);
+  }
+
+  /**
+   * Rendering image element (with resizing) into the canvas element
+   */
+  function renderImageToCanvas(img, canvas, options, doSquash) {
+    var iw = img.naturalWidth, ih = img.naturalHeight;
+    var width = options.width, height = options.height;
+    var ctx = canvas.getContext('2d');
+    ctx.save();
+    transformCoordinate(canvas, width, height, options.orientation);
+
+    // Fine Uploader specific: Save some CPU cycles if not using iOS
+    // Assumption: This logic is only needed to overcome iOS image sampling issues
+    if (qq.ios()) {
+        var subsampled = detectSubsampling(img);
+        if (subsampled) {
+          iw /= 2;
+          ih /= 2;
+        }
+        var d = 1024; // size of tiling canvas
+        var tmpCanvas = document.createElement('canvas');
+        tmpCanvas.width = tmpCanvas.height = d;
+        var tmpCtx = tmpCanvas.getContext('2d');
+        var vertSquashRatio = doSquash ? detectVerticalSquash(img, iw, ih) : 1;
+        var dw = Math.ceil(d * width / iw);
+        var dh = Math.ceil(d * height / ih / vertSquashRatio);
+        var sy = 0;
+        var dy = 0;
+        while (sy < ih) {
+          var sx = 0;
+          var dx = 0;
+          while (sx < iw) {
+            tmpCtx.clearRect(0, 0, d, d);
+            tmpCtx.drawImage(img, -sx, -sy);
+            ctx.drawImage(tmpCanvas, 0, 0, d, d, dx, dy, dw, dh);
+            sx += d;
+            dx += dw;
+          }
+          sy += d;
+          dy += dh;
+        }
+        ctx.restore();
+        tmpCanvas = tmpCtx = null;
+    }
+    else {
+        ctx.drawImage(img, 0, 0, width, height);
+    }
+  }
+
+  /**
+   * Transform canvas coordination according to specified frame size and orientation
+   * Orientation value is from EXIF tag
+   */
+  function transformCoordinate(canvas, width, height, orientation) {
+    switch (orientation) {
+      case 5:
+      case 6:
+      case 7:
+      case 8:
+        canvas.width = height;
+        canvas.height = width;
+        break;
+      default:
+        canvas.width = width;
+        canvas.height = height;
+    }
+    var ctx = canvas.getContext('2d');
+    switch (orientation) {
+      case 2:
+        // horizontal flip
+        ctx.translate(width, 0);
+        ctx.scale(-1, 1);
+        break;
+      case 3:
+        // 180 rotate left
+        ctx.translate(width, height);
+        ctx.rotate(Math.PI);
+        break;
+      case 4:
+        // vertical flip
+        ctx.translate(0, height);
+        ctx.scale(1, -1);
+        break;
+      case 5:
+        // vertical flip + 90 rotate right
+        ctx.rotate(0.5 * Math.PI);
+        ctx.scale(1, -1);
+        break;
+      case 6:
+        // 90 rotate right
+        ctx.rotate(0.5 * Math.PI);
+        ctx.translate(0, -height);
+        break;
+      case 7:
+        // horizontal flip + 90 rotate right
+        ctx.rotate(0.5 * Math.PI);
+        ctx.translate(width, -height);
+        ctx.scale(-1, 1);
+        break;
+      case 8:
+        // 90 rotate left
+        ctx.rotate(-0.5 * Math.PI);
+        ctx.translate(-width, 0);
+        break;
+      default:
+        break;
+    }
+  }
+
+
+  /**
+   * MegaPixImage class
+   */
+  function MegaPixImage(srcImage, errorCallback) {
+    if (window.Blob && srcImage instanceof Blob) {
+      var img = new Image();
+      var URL = window.URL && window.URL.createObjectURL ? window.URL :
+                window.webkitURL && window.webkitURL.createObjectURL ? window.webkitURL :
+                null;
+      if (!URL) { throw Error("No createObjectURL function found to create blob url"); }
+      img.src = URL.createObjectURL(srcImage);
+      this.blob = srcImage;
+      srcImage = img;
+    }
+    if (!srcImage.naturalWidth && !srcImage.naturalHeight) {
+      var _this = this;
+      srcImage.onload = function() {
+        var listeners = _this.imageLoadListeners;
+        if (listeners) {
+          _this.imageLoadListeners = null;
+          for (var i=0, len=listeners.length; i<len; i++) {
+            listeners[i]();
+          }
+        }
+      };
+      srcImage.onerror = errorCallback;
+      this.imageLoadListeners = [];
+    }
+    this.srcImage = srcImage;
+  }
+
+  /**
+   * Rendering megapix image into specified target element
+   */
+  MegaPixImage.prototype.render = function(target, options) {
+    if (this.imageLoadListeners) {
+      var _this = this;
+      this.imageLoadListeners.push(function() { _this.render(target, options) });
+      return;
+    }
+    options = options || {};
+    var imgWidth = this.srcImage.naturalWidth, imgHeight = this.srcImage.naturalHeight,
+        width = options.width, height = options.height,
+        maxWidth = options.maxWidth, maxHeight = options.maxHeight,
+        doSquash = !this.blob || this.blob.type === 'image/jpeg';
+    if (width && !height) {
+      height = (imgHeight * width / imgWidth) << 0;
+    } else if (height && !width) {
+      width = (imgWidth * height / imgHeight) << 0;
+    } else {
+      width = imgWidth;
+      height = imgHeight;
+    }
+    if (maxWidth && width > maxWidth) {
+      width = maxWidth;
+      height = (imgHeight * width / imgWidth) << 0;
+    }
+    if (maxHeight && height > maxHeight) {
+      height = maxHeight;
+      width = (imgWidth * height / imgHeight) << 0;
+    }
+    var opt = { width : width, height : height };
+    for (var k in options) opt[k] = options[k];
+
+    var tagName = target.tagName.toLowerCase();
+    if (tagName === 'img') {
+      target.src = renderImageToDataURL(this.srcImage, opt, doSquash);
+    } else if (tagName === 'canvas') {
+      renderImageToCanvas(this.srcImage, target, opt, doSquash);
+    }
+    if (typeof this.onrender === 'function') {
+      this.onrender(target);
+    }
+  };
+
+  /**
+   * Export class to global
+   */
+  if (typeof define === 'function' && define.amd) {
+    define([], function() { return MegaPixImage; }); // for AMD loader
+  } else {
+    this.MegaPixImage = MegaPixImage;
+  }
+
+})();
+
+/*globals qq, MegaPixImage */
+/**
+ * Draws a thumbnail of a Blob/File/URL onto an <img> or <canvas>.
+ *
+ * @constructor
+ */
+qq.ImageGenerator = function(log) {
+    "use strict";
+
+    function isImg(el) {
+        return el.tagName.toLowerCase() === "img";
+    }
+
+    function isCanvas(el) {
+        return el.tagName.toLowerCase() === "canvas";
+    }
+
+    function isImgCorsSupported() {
+        return new Image().crossOrigin !== undefined;
+    }
+
+    function isCanvasSupported() {
+        var canvas = document.createElement("canvas");
+
+        return canvas.getContext && canvas.getContext("2d");
+    }
+
+    // This is only meant to determine the MIME type of a renderable image file.
+    // It is used to ensure images drawn from a URL that have transparent backgrounds
+    // are rendered correctly, among other things.
+    function determineMimeOfFileName(nameWithPath) {
+        /*jshint -W015 */
+        var pathSegments = nameWithPath.split("/"),
+            name = pathSegments[pathSegments.length - 1],
+            extension = qq.getExtension(name);
+
+        extension = extension && extension.toLowerCase();
+
+        switch(extension) {
+            case "jpeg":
+            case "jpg":
+                return "image/jpeg";
+            case "png":
+                return "image/png";
+            case "bmp":
+                return "image/bmp";
+            case "gif":
+                return "image/gif";
+            case "tiff":
+            case "tif":
+                return "image/tiff";
+        }
+    }
+
+    // This will likely not work correctly in IE8 and older.
+    // It's only used as part of a formula to determine
+    // if a canvas can be used to scale a server-hosted thumbnail.
+    // If canvas isn't supported by the UA (IE8 and older)
+    // this method should not even be called.
+    function isCrossOrigin(url) {
+        var targetAnchor = document.createElement("a"),
+            targetProtocol, targetHostname, targetPort;
+
+        targetAnchor.href = url;
+
+        targetProtocol = targetAnchor.protocol;
+        targetPort = targetAnchor.port;
+        targetHostname = targetAnchor.hostname;
+
+        if (targetProtocol.toLowerCase() !== window.location.protocol.toLowerCase()) {
+            return true;
+        }
+
+        if (targetHostname.toLowerCase() !== window.location.hostname.toLowerCase()) {
+            return true;
+        }
+
+        // IE doesn't take ports into consideration when determining if two endpoints are same origin.
+        if (targetPort !== window.location.port && !qq.ie()) {
+            return true;
+        }
+
+        return false;
+    }
+
+    function registerImgLoadListeners(img, promise) {
+        img.onload = function() {
+            img.onload = null;
+            img.onerror = null;
+            promise.success(img);
+        };
+
+        img.onerror = function() {
+            img.onload = null;
+            img.onerror = null;
+            log("Problem drawing thumbnail!", "error");
+            promise.failure(img, "Problem drawing thumbnail!");
+        };
+    }
+
+    function registerCanvasDrawImageListener(canvas, promise) {
+        var context = canvas.getContext("2d"),
+            oldDrawImage = context.drawImage;
+
+        // The image is drawn on the canvas by a third-party library,
+        // and we want to know when this happens so we can fulfill the associated promise.
+        context.drawImage = function() {
+            oldDrawImage.apply(this, arguments);
+            promise.success(canvas);
+            context.drawImage = oldDrawImage;
+        };
+    }
+
+    // Fulfills a `qq.Promise` when an image has been drawn onto the target,
+    // whether that is a <canvas> or an <img>.  The attempt is considered a
+    // failure if the target is not an <img> or a <canvas>, or if the drawing
+    // attempt was not successful.
+    function registerThumbnailRenderedListener(imgOrCanvas, promise) {
+        var registered = isImg(imgOrCanvas) || isCanvas(imgOrCanvas);
+
+        if (isImg(imgOrCanvas)) {
+            registerImgLoadListeners(imgOrCanvas, promise);
+        }
+        else if (isCanvas(imgOrCanvas)) {
+            registerCanvasDrawImageListener(imgOrCanvas, promise);
+        }
+        else {
+            promise.failure(imgOrCanvas);
+            log(qq.format("Element container of type {} is not supported!", imgOrCanvas.tagName), "error");
+        }
+
+        return registered;
+    }
+
+    // Draw a preview iff the current UA can natively display it.
+    // Also rotate the image if necessary.
+    function draw(fileOrBlob, container, options) {
+        var drawPreview = new qq.Promise(),
+            identifier = new qq.Identify(fileOrBlob, log),
+            maxSize = options.maxSize,
+            megapixErrorHandler = function() {
+                container.onerror = null;
+                container.onload = null;
+                log("Could not render preview, file may be too large!", "error");
+                drawPreview.failure(container, "Browser cannot render image!");
+            };
+
+        identifier.isPreviewable().then(
+            function(mime) {
+                var exif = new qq.Exif(fileOrBlob, log),
+                    mpImg = new MegaPixImage(fileOrBlob, megapixErrorHandler);
+
+                if (registerThumbnailRenderedListener(container, drawPreview)) {
+                    exif.parse().then(
+                        function(exif) {
+                            var orientation = exif.Orientation;
+
+                            mpImg.render(container, {
+                                maxWidth: maxSize,
+                                maxHeight: maxSize,
+                                orientation: orientation,
+                                mime: mime
+                            });
+                        },
+
+                        function(failureMsg) {
+                            log(qq.format("EXIF data could not be parsed ({}).  Assuming orientation = 1.", failureMsg));
+
+                            mpImg.render(container, {
+                                maxWidth: maxSize,
+                                maxHeight: maxSize,
+                                mime: mime
+                            });
+                        }
+                    );
+                }
+            },
+
+            function() {
+                log("Not previewable");
+                drawPreview.failure(container, "Not previewable");
+            }
+        );
+
+        return drawPreview;
+    }
+
+    function drawOnCanvasOrImgFromUrl(url, canvasOrImg, draw, maxSize) {
+        var tempImg = new Image(),
+            tempImgRender = new qq.Promise();
+
+        registerThumbnailRenderedListener(tempImg, tempImgRender);
+
+        if (isCrossOrigin(url)) {
+            tempImg.crossOrigin = "anonymous";
+        }
+
+        tempImg.src = url;
+
+        tempImgRender.then(function() {
+            registerThumbnailRenderedListener(canvasOrImg, draw);
+
+            var mpImg = new MegaPixImage(tempImg);
+            mpImg.render(canvasOrImg, {
+                maxWidth: maxSize,
+                maxHeight: maxSize,
+                mime: determineMimeOfFileName(url)
+            });
+        });
+    }
+
+    function drawOnImgFromUrlWithCssScaling(url, img, draw, maxSize) {
+        registerThumbnailRenderedListener(img, draw);
+        qq(img).css({
+            maxWidth: maxSize + "px",
+            maxHeight: maxSize + "px"
+        });
+
+        img.src = url;
+    }
+
+    // Draw a (server-hosted) thumbnail given a URL.
+    // This will optionally scale the thumbnail as well.
+    // It attempts to use <canvas> to scale, but will fall back
+    // to max-width and max-height style properties if the UA
+    // doesn't support canvas or if the images is cross-domain and
+    // the UA doesn't support the crossorigin attribute on img tags,
+    // which is required to scale a cross-origin image using <canvas> &
+    // then export it back to an <img>.
+    function drawFromUrl(url, container, options) {
+        var draw = new qq.Promise(),
+            scale = options.scale,
+            maxSize = scale ? options.maxSize : null;
+
+        // container is an img, scaling needed
+        if (scale && isImg(container)) {
+            // Iff canvas is available in this UA, try to use it for scaling.
+            // Otherwise, fall back to CSS scaling
+            if (isCanvasSupported()) {
+                // Attempt to use <canvas> for image scaling,
+                // but we must fall back to scaling via CSS/styles
+                // if this is a cross-origin image and the UA doesn't support <img> CORS.
+                if (isCrossOrigin(url) && !isImgCorsSupported()) {
+                    drawOnImgFromUrlWithCssScaling(url, container, draw, maxSize);
+                }
+                else {
+                    drawOnCanvasOrImgFromUrl(url, container, draw, maxSize);
+                }
+            }
+            else {
+                drawOnImgFromUrlWithCssScaling(url, container, draw, maxSize);
+            }
+        }
+        // container is a canvas, scaling optional
+        else if (isCanvas(container)) {
+            drawOnCanvasOrImgFromUrl(url, container, draw, maxSize);
+        }
+        // container is an img & no scaling: just set the src attr to the passed url
+        else if (registerThumbnailRenderedListener(container, draw)) {
+            container.src = url;
+        }
+
+        return draw;
+    }
+
+
+    qq.extend(this, {
+        /**
+         * Generate a thumbnail.  Depending on the arguments, this may either result in
+         * a client-side rendering of an image (if a `Blob` is supplied) or a server-generated
+         * image that may optionally be scaled client-side using <canvas> or CSS/styles (as a fallback).
+         *
+         * @param fileBlobOrUrl a `File`, `Blob`, or a URL pointing to the image
+         * @param container <img> or <canvas> to contain the preview
+         * @param options possible properties include `maxSize` (int), `orient` (bool), and `resize` (bool)
+         * @returns qq.Promise fulfilled when the preview has been drawn, or the attempt has failed
+         */
+        generate: function(fileBlobOrUrl, container, options) {
+            if (qq.isString(fileBlobOrUrl)) {
+                log("Attempting to update thumbnail based on server response.");
+                return drawFromUrl(fileBlobOrUrl, container, options || {});
+            }
+            else {
+                log("Attempting to draw client-side image preview.");
+                return draw(fileBlobOrUrl, container, options || {});
+            }
+        }
+    });
+
+    /*<testing>*/
+    this._testing = {};
+    this._testing.isImg = isImg;
+    this._testing.isCanvas = isCanvas;
+    this._testing.isCrossOrigin = isCrossOrigin;
+    this._testing.determineMimeOfFileName = determineMimeOfFileName;
+    /*</testing>*/
+};
+
+/*globals qq */
+/**
+ * EXIF image data parser.  Currently only parses the Orientation tag value,
+ * but this may be expanded to other tags in the future.
+ *
+ * @param fileOrBlob Attempt to parse EXIF data in this `Blob`
+ * @constructor
+ */
+qq.Exif = function(fileOrBlob, log) {
+    "use strict";
+
+    // Orientation is the only tag parsed here at this time.
+    var TAG_IDS = [274],
+        TAG_INFO = {
+            274: {
+                name: "Orientation",
+                bytes: 2
+            }
+        };
+
+    // Convert a little endian (hex string) to big endian (decimal).
+    function parseLittleEndian(hex) {
+        var result = 0,
+            pow = 0;
+
+        while (hex.length > 0) {
+            result += parseInt(hex.substring(0, 2), 16) * Math.pow(2, pow);
+            hex = hex.substring(2, hex.length);
+            pow += 8;
+        }
+
+        return result;
+    }
+
+    // Find the byte offset, of Application Segment 1 (EXIF).
+    // External callers need not supply any arguments.
+    function seekToApp1(offset, promise) {
+        var theOffset = offset,
+            thePromise = promise;
+        if (theOffset === undefined) {
+            theOffset = 2;
+            thePromise = new qq.Promise();
+        }
+
+        qq.readBlobToHex(fileOrBlob, theOffset, 4).then(function(hex) {
+            var match = /^ffe([0-9])/.exec(hex);
+            if (match) {
+                if (match[1] !== "1") {
+                    var segmentLength = parseInt(hex.slice(4, 8), 16);
+                    seekToApp1(theOffset + segmentLength + 2, thePromise);
+                }
+                else {
+                    thePromise.success(theOffset);
+                }
+            }
+            else {
+                thePromise.failure("No EXIF header to be found!");
+            }
+        });
+
+        return thePromise;
+    }
+
+    // Find the byte offset of Application Segment 1 (EXIF) for valid JPEGs only.
+    function getApp1Offset() {
+        var promise = new qq.Promise();
+
+        qq.readBlobToHex(fileOrBlob, 0, 6).then(function(hex) {
+            if (hex.indexOf("ffd8") !== 0) {
+                promise.failure("Not a valid JPEG!");
+            }
+            else {
+                seekToApp1().then(function(offset) {
+                    promise.success(offset);
+                },
+                function(error) {
+                    promise.failure(error);
+                });
+            }
+        });
+
+        return promise;
+    }
+
+    // Determine the byte ordering of the EXIF header.
+    function isLittleEndian(app1Start) {
+        var promise = new qq.Promise();
+
+        qq.readBlobToHex(fileOrBlob, app1Start + 10, 2).then(function(hex) {
+            promise.success(hex === "4949");
+        });
+
+        return promise;
+    }
+
+    // Determine the number of directory entries in the EXIF header.
+    function getDirEntryCount(app1Start, littleEndian) {
+        var promise = new qq.Promise();
+
+        qq.readBlobToHex(fileOrBlob, app1Start + 18, 2).then(function(hex) {
+            if (littleEndian) {
+                return promise.success(parseLittleEndian(hex));
+            }
+            else {
+                promise.success(parseInt(hex, 16));
+            }
+        });
+
+        return promise;
+    }
+
+    // Get the IFD portion of the EXIF header as a hex string.
+    function getIfd(app1Start, dirEntries) {
+        var offset = app1Start + 20,
+            bytes = dirEntries * 12;
+
+        return qq.readBlobToHex(fileOrBlob, offset, bytes);
+    }
+
+    // Obtain an array of all directory entries (as hex strings) in the EXIF header.
+    function getDirEntries(ifdHex) {
+        var entries = [],
+            offset = 0;
+
+        while (offset+24 <= ifdHex.length) {
+            entries.push(ifdHex.slice(offset, offset + 24));
+            offset += 24;
+        }
+
+        return entries;
+    }
+
+    // Obtain values for all relevant tags and return them.
+    function getTagValues(littleEndian, dirEntries) {
+        var TAG_VAL_OFFSET = 16,
+            tagsToFind = qq.extend([], TAG_IDS),
+            vals = {};
+
+        qq.each(dirEntries, function(idx, entry) {
+            var idHex = entry.slice(0, 4),
+                id = littleEndian ? parseLittleEndian(idHex) : parseInt(idHex, 16),
+                tagsToFindIdx = tagsToFind.indexOf(id),
+                tagValHex, tagName, tagValLength;
+
+            if (tagsToFindIdx >= 0) {
+                tagName = TAG_INFO[id].name;
+                tagValLength = TAG_INFO[id].bytes;
+                tagValHex = entry.slice(TAG_VAL_OFFSET, TAG_VAL_OFFSET + (tagValLength*2));
+                vals[tagName] = littleEndian ? parseLittleEndian(tagValHex) : parseInt(tagValHex, 16);
+
+                tagsToFind.splice(tagsToFindIdx, 1);
+            }
+
+            if (tagsToFind.length === 0) {
+                return false;
+            }
+        });
+
+        return vals;
+    }
+
+    qq.extend(this, {
+        /**
+         * Attempt to parse the EXIF header for the `Blob` associated with this instance.
+         *
+         * @returns {qq.Promise} To be fulfilled when the parsing is complete.
+         * If successful, the parsed EXIF header as an object will be included.
+         */
+        parse: function() {
+            var parser = new qq.Promise(),
+                onParseFailure = function(message) {
+                    log(qq.format("EXIF header parse failed: '{}' ", message));
+                    parser.failure(message);
+                };
+
+            getApp1Offset().then(function(app1Offset) {
+                log(qq.format("Moving forward with EXIF header parsing for '{}'", fileOrBlob.name === undefined ? "blob" : fileOrBlob.name));
+
+                isLittleEndian(app1Offset).then(function(littleEndian) {
+
+                    log(qq.format("EXIF Byte order is {} endian", littleEndian ? "little" : "big"));
+
+                    getDirEntryCount(app1Offset, littleEndian).then(function(dirEntryCount) {
+
+                        log(qq.format("Found {} APP1 directory entries", dirEntryCount));
+
+                        getIfd(app1Offset, dirEntryCount).then(function(ifdHex) {
+                            var dirEntries = getDirEntries(ifdHex),
+                                tagValues = getTagValues(littleEndian, dirEntries);
+
+                            log("Successfully parsed some EXIF tags");
+
+                            parser.success(tagValues);
+                        }, onParseFailure);
+                    }, onParseFailure);
+                }, onParseFailure);
+            }, onParseFailure);
+
+            return parser;
+        }
+    });
+
+    /*<testing>*/
+    this._testing = {};
+    this._testing.parseLittleEndian = parseLittleEndian;
+    /*</testing>*/
+};
+
+/*globals qq */
+qq.Identify = function(fileOrBlob, log) {
+    "use strict";
+
+    var PREVIEWABLE_MAGIC_BYTES = {
+            "image/jpeg": "ffd8ff",
+            "image/gif": "474946",
+            "image/png": "89504e",
+            "image/bmp": "424d",
+            "image/tiff": ["49492a00", "4d4d002a"]
+        };
+
+    function isIdentifiable(magicBytes, questionableBytes) {
+        var identifiable = false,
+            magicBytesEntries = [].concat(magicBytes);
+
+        qq.each(magicBytesEntries, function(idx, magicBytesArrayEntry) {
+            if (questionableBytes.indexOf(magicBytesArrayEntry) === 0) {
+                identifiable = true;
+                return false;
+            }
+        });
+
+        return identifiable;
+    }
+
+    qq.extend(this, {
+        isPreviewable: function() {
+            var idenitifer = new qq.Promise(),
+                previewable = false,
+                name = fileOrBlob.name === undefined ? "blob" : fileOrBlob.name;
+
+            log(qq.format("Attempting to determine if {} can be rendered in this browser", name));
+
+            qq.readBlobToHex(fileOrBlob, 0, 4).then(function(hex) {
+                qq.each(PREVIEWABLE_MAGIC_BYTES, function(mime, bytes) {
+                    if (isIdentifiable(bytes, hex)) {
+                        // Safari is the only supported browser that can deal with TIFFs natively,
+                        // so, if this is a TIFF and the UA isn't Safari, declare this file "non-previewable".
+                        if (mime !== "image/tiff" || qq.safari()) {
+                            previewable = true;
+                            idenitifer.success(mime);
+                        }
+
+                        return false;
+                    }
+                });
+
+                log(qq.format("'{}' is {} able to be rendered in this browser", name, previewable ? "" : "NOT"));
+
+                if (!previewable) {
+                    idenitifer.failure();
+                }
+            });
+
+            return idenitifer;
+        }
+    });
+};
+
+/*globals qq*/
+/**
+ * Attempts to validate an image, wherever possible.
+ *
+ * @param blob File or Blob representing a user-selecting image.
+ * @param log Uses this to post log messages to the console.
+ * @constructor
+ */
+qq.ImageValidation = function(blob, log) {
+    "use strict";
+
+    /**
+     * @param limits Object with possible image-related limits to enforce.
+     * @returns {boolean} true if at least one of the limits has a non-zero value
+     */
+    function hasNonZeroLimits(limits) {
+        var atLeastOne = false;
+
+        qq.each(limits, function(limit, value) {
+            if (value > 0) {
+                atLeastOne = true;
+                return false;
+            }
+        });
+
+        return atLeastOne;
+    }
+
+    /**
+     * @returns {qq.Promise} The promise is a failure if we can't obtain the width & height.
+     * Otherwise, `success` is called on the returned promise with an object containing
+     * `width` and `height` properties.
+     */
+    function getWidthHeight() {
+        var sizeDetermination = new qq.Promise();
+
+        new qq.Identify(blob, log).isPreviewable().then(function() {
+            var image = new Image(),
+                url = window.URL && window.URL.createObjectURL ? window.URL :
+                      window.webkitURL && window.webkitURL.createObjectURL ? window.webkitURL :
+                      null;
+
+            if (url) {
+                image.onerror = function() {
+                    log("Cannot determine dimensions for image.  May be too large.", "error");
+                    sizeDetermination.failure();
+                };
+
+                image.onload = function() {
+                    sizeDetermination.success({
+                        width: this.width,
+                        height: this.height
+                    });
+                };
+
+                image.src = url.createObjectURL(blob);
+            }
+            else {
+                log("No createObjectURL function available to generate image URL!", "error");
+                sizeDetermination.failure();
+            }
+        }, sizeDetermination.failure);
+
+        return sizeDetermination;
+    }
+
+    /**
+     *
+     * @param limits Object with possible image-related limits to enforce.
+     * @param dimensions Object containing `width` & `height` properties for the image to test.
+     * @returns {String || undefined} The name of the failing limit.  Undefined if no failing limits.
+     */
+    function getFailingLimit(limits, dimensions) {
+        var failingLimit;
+
+        qq.each(limits, function(limitName, limitValue) {
+            if (limitValue > 0) {
+                var limitMatcher = /(max|min)(Width|Height)/.exec(limitName),
+                    dimensionPropName = limitMatcher[2].charAt(0).toLowerCase() + limitMatcher[2].slice(1),
+                    actualValue = dimensions[dimensionPropName];
+
+                /*jshint -W015*/
+                switch(limitMatcher[1]) {
+                    case "min":
+                        if (actualValue < limitValue) {
+                            failingLimit = limitName;
+                            return false;
+                        }
+                        break;
+                    case "max":
+                        if (actualValue > limitValue) {
+                            failingLimit = limitName;
+                            return false;
+                        }
+                        break;
+                }
+            }
+        });
+
+        return failingLimit;
+    }
+
+    /**
+     * Validate the associated blob.
+     *
+     * @param limits
+     * @returns {qq.Promise} `success` is called on the promise is the image is valid or
+     * if the blob is not an image, or if the image is not verifiable.
+     * Otherwise, `failure` with the name of the failing limit.
+     */
+    this.validate = function(limits) {
+        var validationEffort = new qq.Promise();
+
+        log("Attempting to validate image.");
+
+        if (hasNonZeroLimits(limits)) {
+            getWidthHeight().then(function(dimensions) {
+                var failingLimit = getFailingLimit(limits, dimensions);
+
+                if (failingLimit) {
+                    validationEffort.failure(failingLimit);
+                }
+                else {
+                    validationEffort.success();
+                }
+            }, validationEffort.success);
+        }
+        else {
+            validationEffort.success();
+        }
+
+        return validationEffort;
+    };
+};
+
+/* globals qq */
+/**
+ * Module used to control populating the initial list of files.
+ *
+ * @constructor
+ */
+qq.Session = function(spec) {
+    "use strict";
+
+    var options = {
+        endpoint: null,
+        params: {},
+        customHeaders: {},
+        cors: {},
+        addFileRecord: function(sessionData) {},
+        log: function(message, level) {}
+    };
+
+    qq.extend(options, spec, true);
+
+
+    function isJsonResponseValid(response) {
+        if (qq.isArray(response)) {
+            return true;
+        }
+
+        options.log("Session response is not an array.", "error");
+    }
+
+    function handleFileItems(fileItems, success, xhrOrXdr, promise) {
+        var someItemsIgnored = false;
+
+        success = success && isJsonResponseValid(fileItems);
+
+        if (success) {
+            qq.each(fileItems, function(idx, fileItem) {
+                /* jshint eqnull:true */
+                if (fileItem.uuid == null) {
+                    someItemsIgnored = true;
+                    options.log(qq.format("Session response item {} did not include a valid UUID - ignoring.", idx), "error");
+                }
+                else if (fileItem.name == null) {
+                    someItemsIgnored = true;
+                    options.log(qq.format("Session response item {} did not include a valid name - ignoring.", idx), "error");
+                }
+                else {
+                    try {
+                        options.addFileRecord(fileItem);
+                        return true;
+                    }
+                    catch(err) {
+                        someItemsIgnored = true;
+                        options.log(err.message, "error");
+                    }
+                }
+
+                return false;
+            });
+        }
+
+        promise[success && !someItemsIgnored ? "success" : "failure"](fileItems, xhrOrXdr);
+    }
+
+    // Initiate a call to the server that will be used to populate the initial file list.
+    // Returns a `qq.Promise`.
+    this.refresh = function() {
+        /*jshint indent:false */
+        var refreshEffort = new qq.Promise(),
+            refreshCompleteCallback = function(response, success, xhrOrXdr) {
+                handleFileItems(response, success, xhrOrXdr, refreshEffort);
+            },
+            requsterOptions = qq.extend({}, options),
+            requester = new qq.SessionAjaxRequester(
+                qq.extend(requsterOptions, {onComplete: refreshCompleteCallback})
+            );
+
+        requester.queryServer();
+
+        return refreshEffort;
+    };
+};
+
+/*globals qq, XMLHttpRequest*/
+/**
+ * Thin module used to send GET requests to the server, expecting information about session
+ * data used to initialize an uploader instance.
+ *
+ * @param spec Various options used to influence the associated request.
+ * @constructor
+ */
+qq.SessionAjaxRequester = function(spec) {
+    "use strict";
+
+    var requester,
+        options = {
+            endpoint: null,
+            customHeaders: {},
+            params: {},
+            cors: {
+                expected: false,
+                sendCredentials: false
+            },
+            onComplete: function(response, success, xhrOrXdr) {},
+            log: function(str, level) {}
+        };
+
+    qq.extend(options, spec);
+
+    function onComplete(id, xhrOrXdr, isError) {
+        var response = null;
+
+        /* jshint eqnull:true */
+        if (xhrOrXdr.responseText != null) {
+            try {
+                response = qq.parseJson(xhrOrXdr.responseText);
+            }
+            catch(err) {
+                options.log("Problem parsing session response: " + err.message, "error");
+                isError = true;
+            }
+        }
+
+        options.onComplete(response, !isError, xhrOrXdr);
+    }
+
+    requester = new qq.AjaxRequester({
+        validMethods: ["GET"],
+        method: "GET",
+        endpointStore: {
+            getEndpoint: function() {
+                return options.endpoint;
+            }
+        },
+        customHeaders: options.customHeaders,
+        log: options.log,
+        onComplete: onComplete,
+        cors: options.cors
+    });
+
+
+    qq.extend(this, {
+        queryServer: function() {
+            var params = qq.extend({}, options.params);
+
+            // cache buster, particularly for IE & iOS
+            params.qqtimestamp = new Date().getTime();
+
+            options.log("Session query request.");
+
+            requester.initTransport("sessionRefresh")
+                .withParams(params)
+                .send();
+        }
+    });
+};
+
+/*globals qq */
+// Base handler for UI (FineUploader mode) events.
+// Some more specific handlers inherit from this one.
+qq.UiEventHandler = function(s, protectedApi) {
+    "use strict";
+
+    var disposer = new qq.DisposeSupport(),
+        spec = {
+            eventType: "click",
+            attachTo: null,
+            onHandled: function(target, event) {}
+        };
+
+
+    // This makes up the "public" API methods that will be accessible
+    // to instances constructing a base or child handler
+    qq.extend(this, {
+        addHandler: function(element) {
+            addHandler(element);
+        },
+
+        dispose: function() {
+            disposer.dispose();
+        }
+    });
+
+    function addHandler(element) {
+        disposer.attach(element, spec.eventType, function(event) {
+            // Only in IE: the `event` is a property of the `window`.
+            event = event || window.event;
+
+            // On older browsers, we must check the `srcElement` instead of the `target`.
+            var target = event.target || event.srcElement;
+
+            spec.onHandled(target, event);
+        });
+    }
+
+    // These make up the "protected" API methods that children of this base handler will utilize.
+    qq.extend(protectedApi, {
+        getFileIdFromItem: function(item) {
+            return item.qqFileId;
+        },
+
+        getDisposeSupport: function() {
+            return disposer;
+        }
+    });
+
+
+    qq.extend(spec, s);
+
+    if (spec.attachTo) {
+        addHandler(spec.attachTo);
+    }
+};
+
+/* global qq */
+qq.FileButtonsClickHandler = function(s) {
+    "use strict";
+
+    var inheritedInternalApi = {},
+        spec = {
+            templating: null,
+            log: function(message, lvl) {},
+            onDeleteFile: function(fileId) {},
+            onCancel: function(fileId) {},
+            onRetry: function(fileId) {},
+            onPause: function(fileId) {},
+            onContinue: function(fileId) {},
+            onGetName: function(fileId) {}
+        },
+        buttonHandlers = {
+            cancel: function(id) { spec.onCancel(id); },
+            retry:  function(id) { spec.onRetry(id); },
+            deleteButton: function(id) { spec.onDeleteFile(id); },
+            pause: function(id) { spec.onPause(id); },
+            continueButton: function(id) { spec.onContinue(id); }
+        };
+
+    function examineEvent(target, event) {
+        qq.each(buttonHandlers, function(buttonType, handler) {
+            var firstLetterCapButtonType = buttonType.charAt(0).toUpperCase() + buttonType.slice(1),
+                fileId;
+
+            if (spec.templating["is" + firstLetterCapButtonType](target)) {
+                fileId = spec.templating.getFileId(target);
+                qq.preventDefault(event);
+                spec.log(qq.format("Detected valid file button click event on file '{}', ID: {}.", spec.onGetName(fileId), fileId));
+                handler(fileId);
+                return false;
+            }
+        });
+    }
+
+    qq.extend(spec, s);
+
+    spec.eventType = "click";
+    spec.onHandled = examineEvent;
+    spec.attachTo = spec.templating.getFileList();
+
+    qq.extend(this, new qq.UiEventHandler(spec, inheritedInternalApi));
+};
+
+/*globals qq */
+// Child of FilenameEditHandler.  Used to detect click events on filename display elements.
+qq.FilenameClickHandler = function(s) {
+    "use strict";
+
+    var inheritedInternalApi = {},
+        spec = {
+            templating: null,
+            log: function(message, lvl) {},
+            classes: {
+                file: "qq-upload-file",
+                editNameIcon: "qq-edit-filename-icon"
+            },
+            onGetUploadStatus: function(fileId) {},
+            onGetName: function(fileId) {}
+        };
+
+    qq.extend(spec, s);
+
+    // This will be called by the parent handler when a `click` event is received on the list element.
+    function examineEvent(target, event) {
+        if (spec.templating.isFileName(target) || spec.templating.isEditIcon(target)) {
+            var fileId = spec.templating.getFileId(target),
+                status = spec.onGetUploadStatus(fileId);
+
+            // We only allow users to change filenames of files that have been submitted but not yet uploaded.
+            if (status === qq.status.SUBMITTED) {
+                spec.log(qq.format("Detected valid filename click event on file '{}', ID: {}.", spec.onGetName(fileId), fileId));
+                qq.preventDefault(event);
+
+                inheritedInternalApi.handleFilenameEdit(fileId, target, true);
+            }
+        }
+    }
+
+    spec.eventType = "click";
+    spec.onHandled = examineEvent;
+
+    qq.extend(this, new qq.FilenameEditHandler(spec, inheritedInternalApi));
+};
+
+/*globals qq */
+// Child of FilenameEditHandler.  Used to detect focusin events on file edit input elements.
+qq.FilenameInputFocusInHandler = function(s, inheritedInternalApi) {
+    "use strict";
+
+    var spec = {
+            templating: null,
+            onGetUploadStatus: function(fileId) {},
+            log: function(message, lvl) {}
+        };
+
+    if (!inheritedInternalApi) {
+        inheritedInternalApi = {};
+    }
+
+    // This will be called by the parent handler when a `focusin` event is received on the list element.
+    function handleInputFocus(target, event) {
+        if (spec.templating.isEditInput(target)) {
+            var fileId = spec.templating.getFileId(target),
+                status = spec.onGetUploadStatus(fileId);
+
+            if (status === qq.status.SUBMITTED) {
+                spec.log(qq.format("Detected valid filename input focus event on file '{}', ID: {}.", spec.onGetName(fileId), fileId));
+                inheritedInternalApi.handleFilenameEdit(fileId, target);
+            }
+        }
+    }
+
+    spec.eventType = "focusin";
+    spec.onHandled = handleInputFocus;
+
+    qq.extend(spec, s);
+    qq.extend(this, new qq.FilenameEditHandler(spec, inheritedInternalApi));
+};
+
+/*globals qq */
+/**
+ * Child of FilenameInputFocusInHandler.  Used to detect focus events on file edit input elements.  This child module is only
+ * needed for UAs that do not support the focusin event.  Currently, only Firefox lacks this event.
+ *
+ * @param spec Overrides for default specifications
+ */
+qq.FilenameInputFocusHandler = function(spec) {
+    "use strict";
+
+    spec.eventType = "focus";
+    spec.attachTo = null;
+
+    qq.extend(this, new qq.FilenameInputFocusInHandler(spec, {}));
+};
+
+/*globals qq */
+// Handles edit-related events on a file item (FineUploader mode).  This is meant to be a parent handler.
+// Children will delegate to this handler when specific edit-related actions are detected.
+qq.FilenameEditHandler = function(s, inheritedInternalApi) {
+    "use strict";
+
+    var spec = {
+            templating: null,
+            log: function(message, lvl) {},
+            onGetUploadStatus: function(fileId) {},
+            onGetName: function(fileId) {},
+            onSetName: function(fileId, newName) {},
+            onEditingStatusChange: function(fileId, isEditing) {}
+        };
+
+
+    function getFilenameSansExtension(fileId) {
+        var filenameSansExt = spec.onGetName(fileId),
+            extIdx = filenameSansExt.lastIndexOf(".");
+
+        if (extIdx > 0) {
+            filenameSansExt = filenameSansExt.substr(0, extIdx);
+        }
+
+        return filenameSansExt;
+    }
+
+    function getOriginalExtension(fileId) {
+        var origName = spec.onGetName(fileId);
+        return qq.getExtension(origName);
+    }
+
+    // Callback iff the name has been changed
+    function handleNameUpdate(newFilenameInputEl, fileId) {
+        var newName = newFilenameInputEl.value,
+            origExtension;
+
+        if (newName !== undefined && qq.trimStr(newName).length > 0) {
+            origExtension = getOriginalExtension(fileId);
+
+            if (origExtension !== undefined) {
+                newName = newName + "." + origExtension;
+            }
+
+            spec.onSetName(fileId, newName);
+        }
+
+        spec.onEditingStatusChange(fileId, false);
+    }
+
+    // The name has been updated if the filename edit input loses focus.
+    function registerInputBlurHandler(inputEl, fileId) {
+        inheritedInternalApi.getDisposeSupport().attach(inputEl, "blur", function() {
+            handleNameUpdate(inputEl, fileId);
+        });
+    }
+
+    // The name has been updated if the user presses enter.
+    function registerInputEnterKeyHandler(inputEl, fileId) {
+        inheritedInternalApi.getDisposeSupport().attach(inputEl, "keyup", function(event) {
+
+            var code = event.keyCode || event.which;
+
+            if (code === 13) {
+                handleNameUpdate(inputEl, fileId);
+            }
+        });
+    }
+
+    qq.extend(spec, s);
+
+    spec.attachTo = spec.templating.getFileList();
+
+    qq.extend(this, new qq.UiEventHandler(spec, inheritedInternalApi));
+
+    qq.extend(inheritedInternalApi, {
+        handleFilenameEdit: function(id, target, focusInput) {
+            var newFilenameInputEl = spec.templating.getEditInput(id);
+
+            spec.onEditingStatusChange(id, true);
+
+            newFilenameInputEl.value = getFilenameSansExtension(id);
+
+            if (focusInput) {
+                newFilenameInputEl.focus();
+            }
+
+            registerInputBlurHandler(newFilenameInputEl, id);
+            registerInputEnterKeyHandler(newFilenameInputEl, id);
+        }
+    });
+};
+
+/*! 2014-01-19 */