[Webkit-unassigned] [Bug 71635] The last case in user-drag-element-and-user-select-none.html is failing on WK2 and Chromium

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71635





--- Comment #1 from Ryosuke Niwa <rniwa at webkit.org>  2011-11-06 15:29:27 PST ---
The problem is that neither WK2 nor Chromium is notifying EventHandler of mouseup event when the drag ends. WebKit1 Mac port has a special work around for this issue in WebHTMLView draggedImage:endedAt:operation:

    // Once the dragging machinery kicks in, we no longer get mouse drags or the up event.
    // WebCore expects to get balanced down/up's, so we must fake up a mouseup.
    NSEvent *fakeEvent = [NSEvent mouseEventWithType:NSLeftMouseUp
                                            location:windowMouseLoc
                                       modifierFlags:[[NSApp currentEvent] modifierFlags]
                                           timestamp:[NSDate timeIntervalSinceReferenceDate]
                                        windowNumber:[[self window] windowNumber]
                                             context:[[NSApp currentEvent] context]
                                         eventNumber:0 clickCount:0 pressure:0];
    [self mouseUp:fakeEvent]; // This will also update the mouseover state.

We probably need a similar work-around in WK2 and Chromium. Alternatively, we could create a fake mouseup event in WebCore layer inside dragSourceEndedAt if it turns out all other ports (Windows, GTK, Qt, etc...) have a similar problem.

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