| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.gef.tools; |
| |
| import org.eclipse.swt.events.FocusAdapter; |
| import org.eclipse.swt.events.FocusEvent; |
| import org.eclipse.swt.events.FocusListener; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.events.KeyListener; |
| import org.eclipse.swt.events.MouseAdapter; |
| import org.eclipse.swt.events.MouseEvent; |
| import org.eclipse.swt.events.MouseListener; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| |
| |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gef.EditPartViewer; |
| import org.eclipse.gef.Request; |
| |
| /** |
| * @author hudsonr Created on Mar 6, 2003 |
| */ |
| class DelayedDirectEditHelper implements Runnable { |
| |
| private EditPartViewer viewer; |
| private EditPart part; |
| private Request req; |
| private FocusListener focus; |
| private MouseListener mouse; |
| private KeyListener key; |
| private static DelayedDirectEditHelper activeHelper; |
| |
| /** |
| * Constructs a new helper and starts it immediately. If another helper is |
| * active, it is aborted and neither helper will run. |
| * |
| * @param viewer |
| * the viewer on which the direct-edit is supposed to happen |
| * @param request |
| * the request that triggered the direct-edit |
| * @param receiver |
| * the EditPart that received the request |
| */ |
| public DelayedDirectEditHelper(EditPartViewer viewer, Request request, |
| EditPart receiver) { |
| this.req = request; |
| this.viewer = viewer; |
| this.part = receiver; |
| if (activeHelper != null) |
| activeHelper = null; |
| else { |
| hookControl(viewer.getControl()); |
| activeHelper = this; |
| Display.getCurrent().timerExec(400, this); |
| } |
| } |
| |
| /** |
| * The edit is canceled by setting the active helper to <code>null</code>. |
| */ |
| void abort() { |
| activeHelper = null; |
| } |
| |
| void hookControl(Control control) { |
| control.addFocusListener(focus = new FocusAdapter() { |
| public void focusLost(FocusEvent e) { |
| abort(); |
| } |
| }); |
| control.addKeyListener(key = new KeyListener() { |
| public void keyPressed(KeyEvent e) { |
| abort(); |
| } |
| |
| public void keyReleased(KeyEvent e) { |
| abort(); |
| } |
| }); |
| |
| control.addMouseListener(mouse = new MouseAdapter() { |
| public void mouseDoubleClick(MouseEvent e) { |
| abort(); |
| } |
| |
| public void mouseDown(MouseEvent e) { |
| abort(); |
| } |
| }); |
| } |
| |
| /** |
| * If this helper has not been aborted, the target editpart will be sent the |
| * request. |
| */ |
| public void run() { |
| if (activeHelper == this && part.isActive() |
| && viewer.getControl() != null |
| && !viewer.getControl().isDisposed()) { |
| part.performRequest(req); |
| } |
| if (viewer.getControl() != null && !viewer.getControl().isDisposed()) { |
| viewer.getControl().removeFocusListener(focus); |
| viewer.getControl().removeMouseListener(mouse); |
| viewer.getControl().removeKeyListener(key); |
| } |
| activeHelper = null; |
| } |
| |
| } |