webcit/static/summaryview.js

   1 /*
   2  * Webcit Summary View v2
   3  * All comments, flowers and death threats to Mathew McBride
   4  * <matt@mcbridematt.dhs.org> / <matt@comalies>
   5  * Copyright 2009 The Citadel Team
   6  * Licensed under the GPL V3
   7  *
   8  * QA reminders: because I keep forgetting / get cursed.
   9  * After changing anything in here, make sure that you still can:
  10  * 1. Resort messages in both normal and paged view.
  11  * 2. Select a range with shift-click
  12  * 3. Select messages with ctrl-click
  13  * 4. Normal click will deselect everything done above
  14  * 5. Move messages, and they will disappear
  15  */
  16
  17 document.observe("dom:loaded", createMessageView);
  18
  19 var msgs = null;
  20 var message_view = null;
  21 var loadingMsg = null;
  22 var rowArray = null;
  23 var currentSortMode = null;
  24
  25 // Header elements
  26 var mlh_date = null;
  27 var mlh_subject = null;
  28 var mlh_from = null;
  29 var currentSorterToggle = null;
  30 var query = "";
  31 var currentlyMarkedRows = new Object();
  32 var markedRowIndex = null;
  33 var currentlyHasRowsSelected = false;
  34
  35 var mouseDownEvent = null;
  36 var exitedMouseDown = false;
  37
  38 var originalMarkedRow = null;
  39 var previousFinish = 0;
  40 var markedFrom = 0;
  41 var trTemplate = new Array(11);
  42 trTemplate[0] = "<tr id=\"";
  43 trTemplate[2] = "\" citadel:dropenabled=\"dropenabled\" class=\"";
  44 trTemplate[4] = "\" citadel:dndelement=\"summaryViewDragAndDropHandler\" citadel:msgid=\"";
  45 trTemplate[6] = "\" citadel:ctdlrowid=\"";
  46 trTemplate[8] = "\"><td class=\"col1\">";
  47 trTemplate[10] = "</td><td class=\"col2\">";
  48 trTemplate[12] = "</td><td class=\"col3\">";
  49 trTemplate[14] = "</td></tr>";
  50
  51
  52 var currentPage = 0;
  53 var sortModes = {
  54         "rdate" : sortRowsByDateDescending,
  55         "date" : sortRowsByDateAscending,
  56         "subj" : sortRowsBySubjectAscending,
  57         "rsubj" : sortRowsBySubjectDescending,
  58         "sender": sortRowsByFromAscending,
  59         "rsender" : sortRowsByFromDescending
  60 };
  61 var toggles = {};
  62
  63 var nummsgs = 0;
  64 var startmsg = 0;
  65
  66 function createMessageView() {
  67         message_view = document.getElementById("message_list_body");
  68         loadingMsg = document.getElementById("loading");
  69         getMessages();
  70         mlh_date = $("mlh_date");
  71         mlh_subject = $('mlh_subject');
  72         mlh_from = $('mlh_from');
  73         toggles["rdate"] = mlh_date;
  74         toggles["date"] = mlh_date;
  75         toggles["subj"] = mlh_subject;
  76         toggles["rsubj"] = mlh_subject;
  77         toggles["sender"] = mlh_from;
  78         toggles["rsender"] = mlh_from;
  79         mlh_date.observe('click',ApplySort);
  80         mlh_subject.observe('click',ApplySort);
  81         mlh_from.observe('click',ApplySort);
  82         $(document).observe('keyup',CtdlMessageListKeyUp,false);
  83         $('resize_msglist').observe('mousedown', CtdlResizeMouseDown);
  84         $('m_refresh').observe('click', getMessages);
  85         document.getElementById('m_refresh').setAttribute("href","#");
  86         Event.observe(document.onresize ? document : window, "resize", normalizeHeaderTable);
  87         Event.observe(document.onresize ? document : window, "resize", sizePreviewPane);
  88         $('summpage').observe('change', getPage);
  89         takeOverSearchOMatic();
  90         setupDragDrop(); // here for now
  91 }
  92
  93 function getMessages() {
  94         if (loadingMsg.parentNode == null) {
  95                 message_view.innerHTML = "";
  96                 message_view.appendChild(loadingMsg);
  97         }
  98         roomName = getTextContent(document.getElementById("rmname"));
  99         var parameters = {'room':roomName, 'startmsg': startmsg, 'stopmsg': -1};
 100         if (is_safe_mode) {
 101                 parameters['stopmsg'] = parseInt(startmsg)+499;
 102                 //parameters['maxmsgs'] = 500;
 103                 if (currentSortMode != null) {
 104                         var SortBy = currentSortMode[0];
 105                         if (SortBy.charAt(0) == 'r') {
 106                                 SortBy = SortBy.substr(1);
 107                                 parameters["SortOrder"] = "0";
 108                         }
 109                         parameters["SortBy"] = SortBy;
 110                 }
 111         }
 112         if (query.length > 0) {
 113                 parameters["query"] = query;
 114         }
 115         new Ajax.Request("roommsgs", {
 116                 method: 'get',
 117                                 onSuccess: loadMessages,
 118                                 parameters: parameters,
 119                                 sanitize: false,
 120                                 evalJSON: false,
 121                                 onFailure: function(e) { alert("Failure: " + e);}
 122         });
 123 }
 124
 125 function evalJSON(data) {
 126         var jsonData = null;
 127         if (typeof(JSON) === 'object' && typeof(JSON.parse) === 'function') {
 128                 try {
 129                         jsonData = JSON.parse(data);
 130                 } catch (e) {
 131                         // ignore
 132                 }
 133         }
 134         if (jsonData == null) {
 135                 jsonData = eval('('+data+')');
 136         }
 137         return jsonData;
 138 }
 139 function loadMessages(transport) {
 140         try {
 141                 var data = evalJSON(transport.responseText);
 142                 if (!!data && transport.responseText.length < 2) {
 143                         alert("Message loading failed");
 144                 }
 145                 nummsgs = data['nummsgs'];
 146                 msgs = data['msgs'];
 147                 var length = msgs.length;
 148                 rowArray = new Array(length); // store so they can be sorted
 149                 WCLog("Row array length: "+rowArray.length);
 150         } catch (e) {
 151                 //window.alert(e+"|"+e.description);
 152         }
 153         if (currentSortMode == null) {
 154                 if (sortmode.length < 1) {
 155                         sortmode = "rdate";
 156                 }
 157                 currentSortMode = [sortmode, sortModes[sortmode]];
 158                 currentSorterToggle = toggles[sortmode];
 159         }
 160         if (!is_safe_mode) {
 161                 resortAndDisplay(currentSortMode[1]);
 162         } else {
 163                 setupPageSelector();
 164                 resortAndDisplay(null);
 165         }
 166         if (loadingMsg.parentNode != null) {
 167                 loadingMsg.parentNode.removeChild(loadingMsg);
 168         }
 169         sizePreviewPane();
 170 }
 171 function resortAndDisplay(sortMode) {
 172         WCLog("Begin resortAndDisplay");
 173
 174         /* We used to try and clear out the message_view element,
 175            but stupid IE doesn't even do that properly */
 176         var message_view_parent = message_view.parentNode;
 177         message_view_parent.removeChild(message_view);
 178         var startSort = new Date();
 179         try {
 180                 if (sortMode != null) {
 181                         msgs.sort(sortMode);
 182                 }
 183         } catch (e) {
 184                 WCLog("Sort error: " + e);
 185         }
 186         var endSort = new Date();
 187         WCLog("Sort rowArray in " + (endSort-startSort));
 188         var start = new Date();
 189         var length = msgs.length;
 190         var compiled = new Array(length+2);
 191         compiled[0] = "<table class=\"mailbox_summary\" id=\"summary_headers\" \"cellspacing=0\" style=\"width:100%;-moz-user-select:none;\">";
 192         for(var x=0; x<length; ++x) {
 193                 try {
 194                         var currentRow = msgs[x];
 195                         trTemplate[1] = "msg_"+currentRow[0];
 196                         var className = "";
 197                         if (((x-1) % 2) == 0) {
 198                                 className += "table-alt-row";
 199                         } else {
 200                                 className += "table-row";
 201                         }
 202                         if (currentRow[5]) {
 203                                 className += " new_message";
 204                         }
 205                         trTemplate[3] = className;
 206                         trTemplate[5] = currentRow[0];
 207                         trTemplate[7] = x;
 208                         trTemplate[9] = currentRow[1];
 209                         trTemplate[11] = currentRow[2];
 210                         trTemplate[13] = currentRow[4];
 211                         var i = x+1;
 212                         compiled[i] = trTemplate.join("");
 213                 } catch (e) {
 214                         WCLog("Exception on row " +  x + ":" + e);
 215                 }
 216         }
 217         compiled[length+2] = "</table>";
 218         var end = new Date();
 219         WCLog("iterate: " + (end-start));
 220         var compile = compiled.join("");
 221         start = new Date();
 222         $(message_view_parent).update(compile);
 223         message_view_parent.onclick = CtdlMessageListClick;
 224         message_view = message_view_parent.firstChild;
 225         end = new Date();
 226         var delta = end.getTime() - start.getTime();
 227         WCLog("append: " + delta);
 228         ApplySorterToggle();
 229         normalizeHeaderTable();
 230 }
 231 function sortRowsByDateAscending(a, b) {
 232         var dateOne = a[3];
 233         var dateTwo = b[3];
 234         return (dateOne - dateTwo);
 235 };
 236 function sortRowsByDateDescending(a, b) {
 237         var dateOne = a[3];
 238         var dateTwo = b[3];
 239         return (dateTwo - dateOne);
 240 };
 241 function sortRowsBySubjectAscending(a, b) {
 242         var subjectOne = a[1];
 243         var subjectTwo = b[1];
 244         return strcmp(subjectOne, subjectTwo);
 245 };
 246 function sortRowsBySubjectDescending(a, b) {
 247         var subjectOne = a[1];
 248         var subjectTwo = b[1];
 249         return strcmp(subjectTwo, subjectOne);
 250 };
 251 function sortRowsByFromAscending(a, b) {
 252         var fromOne = a[2];
 253         var fromTwo = b[2];
 254         return strcmp(fromOne, fromTwo);
 255 };
 256 function sortRowsByFromDescending(a, b) {
 257         var fromOne = a[2];
 258         var fromTwo = b[2];
 259         return strcmp(fromTwo, fromOne);
 260 };
 261 function CtdlMessageListClick(evt) {
 262         /* Since element.onload is used here, test to see if evt is defined */
 263         var event = evt ? evt : window.event;
 264         var target = event.target ? event.target: event.srcElement; // and again..
 265         var parent = target.parentNode;
 266         var msgId = parent.getAttribute("citadel:msgid");
 267         // If the ctrl key modifier wasn't used, unmark all rows and load the message
 268         if (!event.shiftKey && !event.ctrlKey && !event.altKey) {
 269                 previousFinish = 0;
 270                 markedFrom = 0;
 271                 unmarkAllRows();
 272                 markedRowIndex = parent.rowIndex;
 273                 originalMarkedRow = parent;
 274                 document.getElementById("preview_pane").innerHTML = "";
 275                 new Ajax.Updater('preview_pane', 'msg/'+msgId, {method: 'get'});
 276                 markRow(parent);
 277                 new Ajax.Request('ajax_servcmd', {
 278                         method: 'post',
 279                                         parameters: 'g_cmd=SEEN ' + msgId + '|1',
 280                                         onComplete: CtdlMarkRowAsRead(parent)});
 281                 // If the shift key modifier is used, mark a range...
 282         } else if (event.button != 2 && event.shiftKey) {
 283                 if (originalMarkedRow == null) {
 284                         originalMarkedRow = parent;
 285                         markRow(parent);
 286                 } else {
 287                         unmarkAllRows();
 288                         markRow(parent);
 289                         markRow(originalMarkedRow);
 290                 }
 291                 var rowIndex = parent.rowIndex;
 292                 if (markedFrom == 0) {
 293                         markedFrom = rowIndex;
 294                 }
 295                 var startMarkingFrom = 0;
 296                 var finish = 0;
 297                 if (rowIndex > markedRowIndex) {
 298                         startMarkingFrom = markedRowIndex+1;
 299                         finish = rowIndex;
 300                 } else if (rowIndex < markedRowIndex) {
 301                         startMarkingFrom = rowIndex+1;
 302                         finish = markedRowIndex;
 303                 }
 304                 previousFinish = finish;
 305                 WCLog('startMarkingFrom=' + startMarkingFrom + ', finish=' + finish);
 306                 for(var x = startMarkingFrom; x<finish; x++) {
 307                         WCLog("Marking row " + x);
 308                         markRow(parent.parentNode.rows[x]);
 309                 }
 310                 // If the ctrl key modifier is used, toggle one message
 311         } else if (event.button != 2 && (event.ctrlKey || event.altKey)) {
 312                 if (parent.getAttribute("citadel:marked")) {
 313                         unmarkRow(parent);
 314                 }
 315                 else {
 316                         markRow(parent);
 317                 }
 318         }
 319 }
 320 function CtdlMarkRowAsRead(rowElement) {
 321         var classes = rowElement.className;
 322         classes = classes.replace("new_message","");
 323         rowElement.className = classes;
 324 }
 325 function ApplySort(event) {
 326         var target = event.target;
 327         var sortId = target.id;
 328         removeOldSortClass();
 329         currentSorterToggle = target;
 330         var sortModes = getSortMode(target); // returns [[key, func],[key,func]]
 331         var sortModeToUse = null;
 332         if (currentSortMode[0] == sortModes[0][0]) {
 333                 sortModeToUse = sortModes[1];
 334         } else {
 335                 sortModeToUse = sortModes[0];
 336         }
 337         currentSortMode = sortModeToUse;
 338         if (is_safe_mode) {
 339                 getMessages(); // in safe mode, we load from server already sorted
 340         } else {
 341                 resortAndDisplay(sortModeToUse[1]);
 342         }
 343 }
 344 function getSortMode(toggleElem) {
 345         var forward = null;
 346         var reverse = null;
 347         for(var key in toggles) {
 348                 var kr = (key.charAt(0) == 'r');
 349                 if (toggles[key] == toggleElem && !kr) {
 350                         forward = [key, sortModes[key]];
 351                 } else if (toggles[key] == toggleElem && kr) {
 352                         reverse = [key, sortModes[key]];
 353                 }
 354         }
 355         return [forward, reverse];
 356 }
 357 function removeOldSortClass() {
 358         if (currentSorterToggle) {
 359                 var classes = currentSorterToggle.className;
 360                 /* classes = classes.replace("current_sort_mode","");
 361                    classes = classes.replace("sort_ascending","");
 362                    classes = classes.replace("sort_descending",""); */
 363                 currentSorterToggle.className = "";
 364         }
 365 }
 366 function markRow(row) {
 367         var msgId = row.getAttribute("citadel:msgid");
 368         row.className = row.className += " marked_row";
 369         row.setAttribute("citadel:marked","marked");
 370         currentlyMarkedRows[msgId] = row;
 371 }
 372 function unmarkRow(row) {
 373         var msgId = row.getAttribute("citadel:msgid");
 374         row.className = row.className.replace("marked_row","");
 375         row.removeAttribute("citadel:marked");
 376         delete currentlyMarkedRows[msgId];
 377 }
 378 function unmarkAllRows() {
 379         for(msgId in currentlyMarkedRows) {
 380                 unmarkRow(currentlyMarkedRows[msgId]);
 381         }
 382 }
 383 function deleteAllMarkedRows() {
 384         for(msgId in currentlyMarkedRows) {
 385                 var row = currentlyMarkedRows[msgId];
 386                 var rowArrayId = row.getAttribute("citadel:ctdlrowid");
 387                 row.parentNode.removeChild(row);
 388                 delete currentlyMarkedRows[msgId];
 389                 delete msgs[rowArrayId];
 390         }
 391         // Now we have to reconstruct rowarray as the array length has changed */
 392         var newMsgs = new Array(msgs.length-1);
 393         var x=0;
 394         for(var i=0; i<rowArray.length; i++) {
 395                 var currentRow = msgs[i];
 396                 if (currentRow != null) {
 397                         newMsgs[x] = currentRow;
 398                         x++;
 399                 }
 400         }
 401         msgs = newMsgs;
 402         resortAndDisplay(null);
 403 }
 404
 405 function deleteAllSelectedMessages() {
 406         for(msgId in currentlyMarkedRows) {
 407                 if (!room_is_trash) {
 408                         new Ajax.Request('ajax_servcmd',
 409                                          {method: 'post',
 410                                                          parameters: 'g_cmd=MOVE ' + msgId + '|_TRASH_|0'
 411                                                          });
 412                 } else {
 413                         new Ajax.Request('ajax_servcmd', {method: 'post',
 414                                                 parameters: 'g_cmd=DELE '+msgId});
 415                 }
 416         }
 417         document.getElementById("preview_pane").innerHTML = "";
 418         deleteAllMarkedRows();
 419 }
 420
 421 function CtdlMessageListKeyUp(event) {
 422         var key = event.which;
 423         if (key == 46) { // DELETE
 424                 deleteAllSelectedMessages();
 425         }
 426 }
 427
 428 function clearMessage(msgId) {
 429         var row = document.getElementById('msg_'+msgId);
 430         row.parentNode.removeChild(row);
 431         delete currentlyMarkedRows[msgId];
 432 }
 433
 434 function summaryViewContextMenu() {
 435         if (!exitedMouseDown) {
 436                 var contextSource = document.getElementById("listViewContextMenu");
 437                 CtdlSpawnContextMenu(mouseDownEvent, contextSource);
 438         }
 439 }
 440
 441 function summaryViewDragAndDropHandler() {
 442         var element = document.createElement("div");
 443         var msgList = document.createElement("ul");
 444         element.appendChild(msgList);
 445         for(msgId in currentlyMarkedRows) {
 446                 msgRow = currentlyMarkedRows[msgId];
 447                 var subject = getTextContent(msgRow.getElementsByTagName("td")[0]);
 448                 var li = document.createElement("li");
 449                 msgList.appendChild(li);
 450                 setTextContent(li, subject);
 451                 li.ctdlMsgId = msgId;
 452         }
 453         return element;
 454 }
 455
 456 var saved_y = 0;
 457 function CtdlResizeMouseDown(event) {
 458         $(document).observe('mousemove', CtdlResizeMouseMove);
 459         $(document).observe('mouseup', CtdlResizeMouseUp);
 460         saved_y = event.clientY;
 461 }
 462
 463 function sizePreviewPane() {
 464         var preview_pane = document.getElementById("preview_pane");
 465         var summary_view = document.getElementById("summary_view");
 466         var banner = document.getElementById("banner");
 467         var message_list_hdr = document.getElementById("message_list_hdr");
 468         var content = $('global');  // we'd like to use prototype methods here
 469         var childElements = content.childElements();
 470         var sizeOfElementsAbove = 0;
 471         var heightOfViewPort = document.viewport.getHeight() // prototypejs method
 472                 var bannerHeight = banner.offsetHeight;
 473         var contentViewPortHeight = heightOfViewPort-banner.offsetHeight-message_list_hdr.offsetHeight;
 474         contentViewPortHeight = 0.98 * contentViewPortHeight; // leave some error
 475         // Set summary_view to 20%;
 476         var summary_height = ctdlLocalPrefs.readPref("svheight");
 477         if (summary_height == null) {
 478                 summary_height = 0.20 * contentViewPortHeight;
 479         }
 480         // Set preview_pane to the remainder
 481         var preview_height = contentViewPortHeight - summary_height;
 482
 483         summary_view.style.height = (summary_height)+"px";
 484         preview_pane.style.height = (preview_height)+"px";
 485 }
 486 function CtdlResizeMouseMove(event) {
 487         var clientX = event.clientX;
 488         var clientY = event.clientY;
 489         var summary_view = document.getElementById("summary_view");
 490         var summaryViewHeight = summary_view.offsetHeight;
 491         var increment = clientY-saved_y;
 492         var summary_view_height = increment+summaryViewHeight;
 493         summary_view.style.height = (summary_view_height)+"px";
 494         // store summary view height
 495         ctdlLocalPrefs.setPref("svheight",summary_view_height);
 496         var msglist = document.getElementById("preview_pane");
 497         var msgListHeight = msglist.offsetHeight;
 498         msglist.style.height = (msgListHeight-increment)+"px";
 499         saved_y = clientY;
 500         /* For some reason the grippy doesn't work without position: absolute
 501            so we need to set its top pos manually all the time */
 502         var resize = document.getElementById("resize_msglist");
 503         var resizePos = resize.offsetTop;
 504         resize.style.top = (resizePos+increment)+"px";
 505 }
 506 function CtdlResizeMouseUp(event) {
 507         $(document).stopObserving('mousemove', CtdlResizeMouseMove);
 508         $(document).stopObserving('mouseup', CtdlResizeMouseUp);
 509 }
 510 function ApplySorterToggle() {
 511         var className = currentSorterToggle.className;
 512         className += " current_sort_mode";
 513         if (currentSortMode[1] == sortRowsByDateDescending ||
 514             currentSortMode[1] == sortRowsBySubjectDescending ||
 515             currentSortMode[1] == sortRowsByFromDescending) {
 516                 className += " sort_descending";
 517         } else {
 518                 className += " sort_ascending";
 519         }
 520         currentSorterToggle.className = className;
 521 }
 522
 523 /* Hack to make the header table line up with the data */
 524 function normalizeHeaderTable() {
 525         var message_list_hdr = document.getElementById("message_list_hdr");
 526         var summary_view = document.getElementById("summary_view");
 527         var resize_msglist = document.getElementById("resize_msglist");
 528         var headerTable = message_list_hdr.getElementsByTagName("table")[0];
 529         var dataTable = summary_view.getElementsByTagName("table")[0];
 530         var dataTableWidth = dataTable.offsetWidth;
 531         headerTable.style.width = dataTableWidth+"px";
 532 }
 533
 534 function setupPageSelector() {
 535         var summpage = document.getElementById("summpage");
 536         var select_page = document.getElementById("selectpage");
 537         summpage.innerHTML = "";
 538         if (is_safe_mode) {
 539                 WCLog("unhiding parent page");
 540                 select_page.className = "";
 541         } else {
 542                 return;
 543         }
 544         var pages = nummsgs / 499;
 545         for(var i=0; i<pages; i++) {
 546                 var opt = document.createElement("option");
 547                 var startmsg = i * 499;
 548                 opt.setAttribute("value",startmsg);
 549                 if (currentPage == i) {
 550                         opt.setAttribute("selected","selected");
 551                 }
 552                 opt.appendChild(document.createTextNode((i+1)));
 553                 summpage.appendChild(opt);
 554         }
 555 }
 556 function getPage(event) {
 557         var target = event.target;
 558         startmsg = target.options.item(target.selectedIndex).value;
 559         currentPage = target.selectedIndex;
 560         //query = ""; // We are getting a page from the _entire_ msg list, don't query
 561         getMessages();
 562 }
 563 function takeOverSearchOMatic() {
 564         var searchForm = document.getElementById("searchomatic").getElementsByTagName("form")[0];
 565         // First disable the form post
 566         searchForm.setAttribute("action","javascript:void();");
 567         searchForm.removeAttribute("method");
 568         $(searchForm).observe('submit', doSearch);
 569 }
 570 function doSearch() {
 571         query = document.getElementById("srchquery").value;
 572         getMessages();
 573         return false;
 574 }