Bug 319173 [UI] Resizing feedback stops working
While we have seen this on other platforms we have a repeatable test case for the Mac (bogdan, please check if this is the exact scenarion, I'm entering it from memory): Fresh WS, open two other perspectives hit Ctrl-F8 (select perspective) Resize the main window the feedback for the resize doesn't occur until after the mouse button is released.
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/TrimBarRenderer.java
return null;
		}
		result.addDisposeListener(new DisposeListener() {
			public void widgetDisposed(DisposeEvent e) {
				cleanUp(trimModel);
			}
		});
		return result;
	}
	@Override
	public void hideChild(MElementContainer<MUIElement> parentElement,
			MUIElement child) {
		super.hideChild(parentElement, child);
		Widget widget = (Widget) child.getWidget();
		if (widget != null) {
			widget.dispose();
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.e4.ui.workbench.renderers.swt.SWTPartFactory#processContents
	 * (org.eclipse.e4.ui.model.application.MPart)
	 */
	@Override
	public void processContents(MElementContainer<MUIElement> me) {
		if (!(((MUIElement) me) instanceof MTrimBar))
			return;
		super.processContents(me);