Bug 279553 [FieldAssist] ControlDecoration strange behavior when description text is empty string
Build ID: 3.5RC3 With the following simple code, when I hover over the control decoration, a huge yellow box quickly flashes on the screen and then disappears. I also tried on 3.4.2 and observed the same behavior. Display display = new Display(); Shell shell = new Shell(display); shell.setLayout(new GridLayout(1, false)); Text t = new Text(shell, SWT.BORDER); t.setText("hover on decoration ->"); ControlDecoration decoration = new ControlDecoration(t, SWT.RIGHT); decoration.setImage(FieldDecorationRegistry.getDefault() .getFieldDecoration(FieldDecorationRegistry.DEC_INFORMATION).getImage()); decoration.setDescriptionText(""); shell.pack(); shell.open(); while (!isInterrupted() && !shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose();
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ControlDecoration.java
}
			public void mouseEnter(MouseEvent event) {
				
			}
		};
		compositeListener = new Listener() {
			public void handleEvent(Event event) {
				
				if (!visible) {
					return;
				}
				
				switch (event.type) {
				case SWT.MouseDown:
					if (!selectionListeners.isEmpty())
						notifySelectionListeners(event);
					break;
				case SWT.MouseDoubleClick:
					if (!selectionListeners.isEmpty())
						notifySelectionListeners(event);
					break;
				case SWT.MenuDetect:
					if (!menuDetectListeners.isEmpty())
						notifyMenuDetectListeners(event);
					break;
				}
			}
		};