Bug 42009 [KeyBindings] Ctrl+Shift+F switches input mode in KeySequenceText on GTK
Some key strokes shift the input mode by default in GTK, which breaks the way the KeySequenceText widget is supposed to work. One example is Ctrl+Shift+F. Instead of the desired character, a strange other character is inserted, and the key sequence is not modified. This character cannot be deleted. STEPS TO REPRODUCE: 1.) Open the KeysPreferencePage and change focus to the KeySequenceText widget. 2.) Type Ctrl+Shift+F ACTUAL RESULTS: An underlined 'F' is inserted in the text widget, and the key sequence is not affected. EXPECTED RESULTS: Ctrl+Shift+F should be inserted, and the key sequence updated.
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ActionContributionItem.java
/**
	 * The presentation mode.
	 */
	private int mode = 0;
	/**
	 * The action.
	 */
	private IAction action;
	/**
	 * Listener for SWT button widget events.
	 */
	private Listener buttonListener;
	/**
	 * Listener for SWT menu item widget events.
	 */
	private Listener menuItemListener;
	/**
	 * Listener for action property change notifications.
	 */
	private final IPropertyChangeListener propertyListener = new IPropertyChangeListener() {
		public void propertyChange(PropertyChangeEvent event) {
			actionPropertyChange(event);
		}
	};
	/**
	 * Listener for SWT tool item widget events.
	 */
	private Listener toolItemListener;
	/**
	 * The widget created for this item; <code>null</code>