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matgessel / gwt-tk

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Cannot scroll viewport while ModalDialog is up #5

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
GWT version: 1.3.3
GWT Tk version: 0.2.2
Browsers tested: FF1.5 [Mac/Win], IE6, Opera9, Safari, Camino
Browsers affected: FF1.5 [Win]

What steps will reproduce the problem?
1. launch the GWT Tk Demo
2. resize the browser window so that scrollbars are visible
3. display a ModalDialog in the Demo
4. click and drag a viewport scrollbar

What is the expected result? What happens instead?
Expected: document scrolls when mouse is dragged
Actual: nothing happens. Scroll bar cannot be dragged.

Please provide any additional information below.
Official GWT issue: 
http://code.google.com/p/google-web-toolkit/issues/detail?id=399

Workaround submitted by Adam Duston: 
I have found that subclassing your dialog to be immune to this bug
is an easy task: override onEventPreview to return true if the browser
is FF and the following outOfClientRegion function returns true, given
the event param evt of onEventPreview:

public boolean outOfClientRegion(Event evt)
{
  switch (DOM.eventGetType(evt))
  {
    case Event.ONMOUSEDOWN:
    case Event.ONMOUSEUP:
    case Event.ONMOUSEMOVE:
    case Event.ONCLICK:
    case Event.ONDBLCLICK:
      return outOfClientRegionImpl(evt);
  }
  return false;
}

private native boolean outOfClientRegionImpl(Event evt) /*-{
  target = evt.target;
  return (target.nodeName === "scrollbar" || target.nodeName === "HTML");
}-*/;

TASK: does this workaround depend on GlassPanel dimensions?

Original issue reported on code.google.com by mat.ges...@gmail.com on 21 Mar 2007 at 7:55

GoogleCodeExporter commented 9 years ago 
Fixed for Tk 0.2.3. Used the dimensions of the viewport to determine if the 
mouse
event originated over the scroll bar. 
r63, r72

Original comment by mat.ges...@gmail.com on 2 May 2007 at 7:27