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slight rework/cleanup of BeginDragContentArea

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This commit is contained in:
brade%netscape.com 2006-09-14 05:49:18 +00:00
parent 4ed50f1332
commit b250b001cd
1 changed files with 29 additions and 34 deletions
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63
suite/browser/navigatorDD.js
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@ -280,7 +280,6 @@ function BeginDragContentArea ( event )
if ( !gDragDropEnabled )
return;
dump ("in content area; starting drag\n");
var dragStarted = false;
var dragService = Components.classes["component://netscape/widget/dragservice"].getService(Components.interfaces.nsIDragService);
if ( dragService )
@ -288,11 +287,12 @@ function BeginDragContentArea ( event )
var trans = Components.classes["component://netscape/widget/transferable"].createInstance(Components.interfaces.nsITransferable);
if ( trans )
{
var src = null;
var genTextData = Components.classes["component://netscape/supports-wstring"].createInstance(Components.interfaces.nsISupportsWString);
var htmlData = Components.classes["component://netscape/supports-wstring"].createInstance(Components.interfaces.nsISupportsWString);
if ( htmlData )
if ( genTextData && htmlData )
{
trans.addDataFlavor("text/html");
trans.addDataFlavor("text/unicode");
var htmlstring = null;
switch (event.target.nodeName)
@ -335,43 +335,32 @@ function BeginDragContentArea ( event )
if ( src != "" )
htmlstring = "<A href=\"" + src + "\">" + src + "</A>";
else
htmlstring = "<p>no html tag or link found; found "+event.target.nodeName;
return;
break;
}
htmlData.data = htmlstring;
trans.setTransferData ( "text/html", htmlData, htmlstring.length*2 ); // double byte data (len*2)
}
var genTextData =
Components.classes["component://netscape/supports-wstring"].createInstance(Components.interfaces.nsISupportsWString);
if ( genTextData && src != "")
{
trans.addDataFlavor("text/unicode");
genTextData.data = src; // should have been set if we had html
trans.setTransferData ( "text/unicode", genTextData, src.length*2 ); // double byte data
}
var transArray = Components.classes["component://netscape/supports-array"].createInstance(Components.interfaces.nsISupportsArray);
if ( transArray )
{
// put it into the transferable as an |nsISupports|
var genTrans = trans.QueryInterface(Components.interfaces.nsISupports);
transArray.AppendElement(genTrans);
var nsIDragService = Components.interfaces.nsIDragService;
dragService.invokeDragSession ( transArray, null, nsIDragService.DRAGDROP_ACTION_COPY +
nsIDragService.DRAGDROP_ACTION_MOVE );
dragStarted = true;
}
htmlData.data = htmlstring;
trans.setTransferData ( "text/html", htmlData, htmlstring.length * 2 ); // double byte data
genTextData.data = src;
trans.setTransferData ( "text/unicode", genTextData, src.length * 2 ); // double byte data
var transArray = Components.classes["component://netscape/supports-array"].createInstance(Components.interfaces.nsISupportsArray);
if ( transArray )
{
// put it into the transferable as an |nsISupports|
var genTrans = trans.QueryInterface(Components.interfaces.nsISupports);
transArray.AppendElement(genTrans);
var nsIDragService = Components.interfaces.nsIDragService;
dragService.invokeDragSession ( transArray, null, nsIDragService.DRAGDROP_ACTION_COPY +
nsIDragService.DRAGDROP_ACTION_MOVE );
dragStarted = true;
}
} // if data object
} // if transferable
} // if drag service
if ( dragStarted ) // don't propagate the event if a drag has begun
event.preventBubble();
return true;
}
@ -569,20 +558,26 @@ function DragContentLink ( event )
var trans =
Components.classes["component://netscape/widget/transferable"].createInstance(Components.interfaces.nsITransferable);
if ( trans ) {
trans.addDataFlavor("text/unicode");
var genTextData =
Components.classes["component://netscape/supports-wstring"].createInstance(Components.interfaces.nsISupportsWString);
if ( genTextData ) {
var htmlData =
Components.classes["component://netscape/supports-wstring"].createInstance(Components.interfaces.nsISupportsWString);
if ( genTextData && htmlData ) {
trans.addDataFlavor("text/html");
trans.addDataFlavor("text/unicode");
// pull the url out of the link
var href = enclosingLink(target);
if ( href == "" )
return;
var id = href
genTextData.data = id;
var htmlstring = "<A href=\"" + id + "\">" + id + "</A>";
htmlData.data = htmlstring;
dump("ID: " + id + "\n");
trans.setTransferData ( "text/html", htmlData, htmlstring.length * 2 ); // double byte data
trans.setTransferData ( "text/unicode", genTextData, id.length * 2 ); // double byte data
var transArray =
Components.classes["component://netscape/supports-array"].createInstance(Components.interfaces.nsISupportsArray);