void HandleWidgetDragDrop(object o, Gtk.DragDropArgs args)
{
lastDragPosition = new Point (args.X, args.Y);
var cda = ConvertDragAction (args.Context.Action);
DragDropResult res;
if ((enabledEvents & WidgetEvent.DragDropCheck) == 0) {
if ((enabledEvents & WidgetEvent.DragDrop) != 0)
res = DragDropResult.None;
else
res = DragDropResult.Canceled;
}
else {
DragCheckEventArgs da = new DragCheckEventArgs (new Point (args.X, args.Y), Util.GetDragTypes (args.Context.Targets), cda);
Toolkit.Invoke (delegate {
EventSink.OnDragDropCheck (da);
});
res = da.Result;
if ((enabledEvents & WidgetEvent.DragDrop) == 0 && res == DragDropResult.None)
res = DragDropResult.Canceled;
}
if (res == DragDropResult.Canceled) {
args.RetVal = true;
Gtk.Drag.Finish (args.Context, false, false, args.Time);
}
else if (res == DragDropResult.Success) {
args.RetVal = true;
Gtk.Drag.Finish (args.Context, true, cda == DragDropAction.Move, args.Time);
}
else {
// Undefined, we need more data
args.RetVal = true;
QueryDragData (args.Context, args.Time, false);
}
}
internal bool DoDragDrop(Gdk.DragContext context, int x, int y, uint time)
{
DragDropInfo.LastDragPosition = new Point (x, y);
var cda = ConvertDragAction (context.Action);
DragDropResult res;
if ((enabledEvents & WidgetEvent.DragDropCheck) == 0) {
if ((enabledEvents & WidgetEvent.DragDrop) != 0)
res = DragDropResult.None;
else
res = DragDropResult.Canceled;
}
else {
DragCheckEventArgs da = new DragCheckEventArgs (new Point (x, y), Util.GetDragTypes (context.Targets), cda);
ApplicationContext.InvokeUserCode (delegate {
EventSink.OnDragDropCheck (da);
});
res = da.Result;
if ((enabledEvents & WidgetEvent.DragDrop) == 0 && res == DragDropResult.None)
res = DragDropResult.Canceled;
}
if (res == DragDropResult.Canceled) {
Gtk.Drag.Finish (context, false, false, time);
return true;
}
else if (res == DragDropResult.Success) {
Gtk.Drag.Finish (context, true, cda == DragDropAction.Move, time);
return true;
}
else {
// Undefined, we need more data
QueryDragData (context, time, false);
return true;
}
}
public void OnDragDropCheck(DragCheckEventArgs args)
{
Parent.OnDragDropCheck (args);
}
/// <summary>
/// Raises the DragDropCheck event.
/// </summary>
/// <param name='args'>
/// Arguments.
/// </param>
protected internal virtual void OnDragDropCheck(DragCheckEventArgs args)
{
if (dragDropCheck != null)
dragDropCheck (this, args);
}
public void OnDragDropCheck(DragCheckEventArgs args)
{
Parent.OnDragDropCheck(args);
}
