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mark thread tree as one that doesn't allow drops between rows. bug# 47105

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This commit is contained in:
pinkerton%netscape.com 2000-08-15 18:25:07 +00:00
parent 9f4dc4d704
commit f573748eff
2 changed files with 11 additions and 11 deletions
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2
mailnews/base/resources/content/folderPane.xul
View File

@ -35,7 +35,7 @@
<tree datasources="rdf:null"
id="folderTree" class="mail-folders"
onselect="top.FolderPaneSelectionChange(); document.commandDispatcher.updateCommands('tree-select');"
onblur="goOnEvent(this,'blur')"
onblur="goOnEvent(this,'blur')" dd-nodropbetweenrows="true"
ondragover="return DragOverTree(event);"
ondraggesture="return BeginDragFolderTree(event);"
ondragdrop="return DropOnFolderTree(event);"

20
mailnews/base/resources/content/messengerdnd.js
View File

@ -48,13 +48,14 @@ function GetRDFService()
function DragOverTree(event)
{
if (event.target.localName != "treecell" &&
event.target.localName != "treeitem")
return false;
if (event.target.localName != "treecell" &&
event.target.localName != "treeitem") {
event.preventBubble();
return;
}
var validFlavor = false;
var dragSession = null;
var retVal = true;
var dragService = GetDragService();
if ( !dragService ) return(false);
@ -65,17 +66,16 @@ function DragOverTree(event)
if ( dragSession.isDataFlavorSupported("text/nsmessage") ) validFlavor = true;
//XXX other flavors here...
// touch the attribute on the rowgroup to trigger the repaint with the drop feedback.
// touch the attribute on the treeItem to trigger the repaint with the drop feedback
// (recall that it is two levels above the target, which is a treeCell).
if ( validFlavor )
{
//XXX this is really slow and likes to refresh N times per second.
var rowGroup = event.target.parentNode.parentNode;
rowGroup.setAttribute ( "dd-triggerrepaint", 0 );
event.target.parentNode.parentNode.setAttribute ( "dd-triggerrepaint", 0 );
dragSession.canDrop = true;
// necessary??
retVal = false; // do not propagate message
event.preventBubble(); // do not propagate message
}
return(retVal);
}
function BeginDragFolderTree(event)