Bug 192633 [FieldAssist] auto-activated proposal popup should be closed when trigger character is removed
I20070608-1718 Auto-activated proposal popup should be closed when trigger character is removed. Steps: - open Find/Replace dialog, activate regex - type "\" or "\r" - when proposals appear, press Backspace until field is empty again Was: Proposals stay up Expected: Proposals should disappear when the triggering character is removed. This is also what happens in the Java Editor.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
*/
	public void addContentProposalListener(IContentProposalListener listener) {
		proposalListeners.add(listener);
	}
	/**
	 * Removes the specified listener from the list of content proposal
	 * listeners that are notified when content proposals are chosen.
	 * </p>
	 * 
	 * @param listener
	 *            the IContentProposalListener to be removed as a listener. Must
	 *            not be <code>null</code>. If the listener has not already
	 *            been registered, this method has no effect.
	 * 
	 * @since 3.3
	 * @see org.eclipse.jface.fieldassist.IContentProposalListener
	 */
	public void removeContentProposalListener(IContentProposalListener listener) {
		proposalListeners.remove(listener);
	}
	/**
	 * Add the specified listener to the list of content proposal listeners that
	 * are notified when a content proposal popup is opened or closed.
	 * </p>
	 * 
	 * @param listener
	 *            the IContentProposalListener2 to be added as a listener. Must
	 *            not be <code>null</code>. If an attempt is made to register
	 *            an instance which is already registered with this instance,
	 *            this method has no effect.