Hi,
I have just implemented dragdrop from a custom control and in IE this seems to
work pretty much out of the box by just calling setDroppable and setDraggable
icw some drag events.
In several other browsers I kept getting the "invalid drag" cursor and was able
to locate the issue in the "qx.event.handler.DragDrop" code where extra events
are registered in _onMouseMove during the drag operation. The logic that checks
if the operation is valid is located in the mouseover event, but this event is
not triggered in many browsers.
As a workaround I implemented a mouse move on my own control and forwarded the
event to the drag drop handler like this:
var mgr =
qx.event.Registration.getManager(this).getHandler(qx.event.handler.DragDrop);
if (mgr) {
var target = null;
var fEl = this.__innnerControl.getFocusElement();
if (fEl) {
target = fEl.getDomElement();
}
var event = qx.event.Registration.createEvent("mousemove",
qx.event.type.Mouse, [{}, target, target, false, true]);
// Fake the mouse-over event on the DragDrop handler to set private
property "__validDrop" to true
mgr._onMouseOver(event);
}
Where the __innerControl is my own control and I do this on all non-mshtml
browsers. Now it works perfectly, but I don't think I should have to do this.
What are your ideas on this? I'm using Qx version 1.4.1 by the way and looking
at upgrading to the current version so I don't know if this is already fixed
there.
Best regards,
Jeroen
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