Revert "serv_rssclient.c: style update"

[citadel.git] / webcit / static / ctdldragdrop.js

diff --git a/webcit/static/ctdldragdrop.js b/webcit/static/ctdldragdrop.js
new file mode 100644 (file)
index 0000000..aefd398
--- /dev/null
+++ b/webcit/static/ctdldragdrop.js
@@ -0,0 +1,83 @@
+/** 
+ * Because scriptaculous DnD sucks..
+ * Written by Mathew McBride <matt@mcbridematt.dhs.org> / <matt@comalies>
+ * 
+ * Copyright 2009 The Citadel Team
+ * Licensed under the GPL V3
+ */
+var draggedElement = null;
+var currentDropTargets = null;
+var dropTarget = null;
+var dragAndDropElement = null;
+var oldSelectHandler = null;
+function mouseDownHandler(event) {
+  var target = event.target;
+  var actualTarget = target;
+  if (target.nodeName.toLowerCase() == "td") {
+    actualTarget = target.parentNode;
+  }
+  if (!actualTarget.dropEnabled && actualTarget.getAttribute("citadel:dropenabled") == null) {
+    return;
+  }
+  turnOffTextSelect();
+  draggedElement = actualTarget;
+  return false;
+}
+function mouseUpHandler(event) {
+  var target = event.target;
+  var dropped = dropTarget;
+  if (dragAndDropElement != null) {
+  if (dropped != null && dropped.dropHandler) {
+    dropped.dropHandler(dropped,draggedElement);
+  }
+  document.body.removeChild(dragAndDropElement);
+  }
+  dragAndDropElement = null;
+  draggedElement = null;
+  dropTarget = null;
+  turnOnTextSelect();
+  return true;
+}
+function mouseMoveHandler(event) {
+  if (draggedElement != null) {
+    if (dragAndDropElement == null) {
+      var dragAndDropElementFunction = (draggedElement.ctdlDnDElement) ? draggedElement.ctdlDndElement : eval(draggedElement.getAttribute("citadel:dndelement"));
+      dragAndDropElement = dragAndDropElementFunction.call();
+    dragAndDropElement.className = "draganddrop";
+    document.body.appendChild(dragAndDropElement);
+    }
+    var clientX = event.clientX+5;
+    var clientY = event.clientY+5;
+    dragAndDropElement.style.top = clientY + "px";
+    dragAndDropElement.style.left = clientX + "px";
+  }
+  return false;
+}
+function mouseMoveOver(event) {
+  if (event.target.dropTarget) {
+    dropTarget = event.target;
+  }
+}
+function mouseMoveOut(event) {
+  if (dropTarget) {
+    dropTarget = null;
+  }
+}
+function setupDragDrop() {
+  $(document.body).observe('mousedown', mouseDownHandler);
+    $(document.body).observe('mouseup',mouseUpHandler);
+    $(document.body).observe('mousemove',mouseMoveHandler);
+    $(document.body).observe('mouseover', mouseMoveOver);
+    $(document.body).observe('mouseout', mouseMoveOut); 
+}
+function turnOffTextSelect() {
+  document.onmousedown = new Function("return false");
+  document.onmouseup = new Function("return true");
+ oldSelectHandler = document.onselectstart;
+ document.onselectstart = function() { return false; };
+}
+function turnOnTextSelect() {
+  document.onmousedown = null;
+  document.onmouseup = null;
+  document.onselectstart = oldSelectHandler;
+}