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
*         characters will auto-activate content proposal.
	 */
	public char[] getAutoActivationCharacters() {
		if (autoActivateString == null) {
			return null;
		}
		return autoActivateString.toCharArray();
	}
	/**
	 * Set the array of characters that will trigger autoactivation of the
	 * popup.
	 * 
	 * @param autoActivationCharacters
	 *            An array of characters that trigger auto-activation of content
	 *            proposal. If specified, these characters will trigger
	 *            auto-activation of the proposal popup, regardless of whether
	 *            an explicit invocation keyStroke was specified. If this
	 *            parameter is <code>null</code>, then only a specified
	 *            keyStroke will invoke content proposal. If this parameter is
	 *            <code>null</code> and the keyStroke value is
	 *            <code>null</code>, then all alphanumeric characters will
	 *            auto-activate content proposal.
	 * 
	 */
	public void setAutoActivationCharacters(char[] autoActivationCharacters) {
		if (autoActivationCharacters == null) {
			this.autoActivateString = null;
		} else {
			this.autoActivateString = new String(autoActivationCharacters);
		}