1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.ui.contribution;
14 import java.util.Arrays;
15 import java.util.Comparator;
17 import org.eclipse.jface.action.ContributionItem;
18 import org.eclipse.jface.action.IContributionItem;
19 import org.eclipse.jface.resource.ImageDescriptor;
20 import org.eclipse.jface.resource.JFaceResources;
21 import org.eclipse.jface.resource.LocalResourceManager;
22 import org.eclipse.jface.resource.ResourceManager;
23 import org.eclipse.swt.SWT;
24 import org.eclipse.swt.events.SelectionEvent;
25 import org.eclipse.swt.events.SelectionListener;
26 import org.eclipse.swt.widgets.Menu;
27 import org.eclipse.swt.widgets.MenuItem;
28 import org.simantics.db.ReadGraph;
29 import org.simantics.db.Resource;
30 import org.simantics.db.exception.DatabaseException;
31 import org.simantics.ui.selection.WorkbenchSelectionUtils;
32 import org.simantics.ui.workbench.action.ResourceEditorAdapterAction;
33 import org.simantics.ui.workbench.editor.EditorAdapter;
34 import org.simantics.ui.workbench.editor.EditorRegistry;
35 import org.simantics.utils.strings.AlphanumComparator;
39 * @author Tuukka Lehtonen
41 public class OpenWithMenuContribution extends DynamicMenuContribution {
43 private static final boolean DEBUG_ADAPTERS = false;
45 private ResourceManager resourceManager;
47 public OpenWithMenuContribution() {
48 resourceManager = new LocalResourceManager(JFaceResources.getResources());
52 public void dispose() {
53 if (resourceManager != null) {
54 resourceManager.dispose();
55 resourceManager = null;
60 protected Object extractResource(ReadGraph graph, Object object) throws DatabaseException {
61 Resource resource = WorkbenchSelectionUtils.getPossibleResourceFromSelection(graph, object);
62 return resource != null ? resource : object;
66 protected boolean preAcceptSelection(Object[] selection) {
67 return selection.length == 1;
71 protected IContributionItem[] getContributionItems(ReadGraph graph, Object[] selection) throws DatabaseException {
72 final Object r = extractResource(graph, selection[0]);
73 final EditorAdapter[] editorAdapters = EditorRegistry.getInstance().getAdaptersFor(graph, r);
74 if (editorAdapters.length == 0)
77 return new IContributionItem[] {
78 new ContributionItem() {
80 public void fill(Menu menu, int index) {
81 MenuItem openWith = new MenuItem(menu, SWT.CASCADE, index);
82 openWith.setText("Open With");
83 openWith.setEnabled(editorAdapters.length > 0);
84 Menu subMenu = new Menu(menu);
85 openWith.setMenu(subMenu);
87 if (editorAdapters.length > 0) {
88 // Sort the open with actions in descending priority order.
89 Adapter[] adapters = new Adapter[editorAdapters.length];
90 for (int i = 0; i < editorAdapters.length; i++)
91 adapters[i] = new Adapter(editorAdapters[i], r, true);
92 Arrays.sort(adapters, new Comparator<Adapter>() {
94 public int compare(Adapter o1, Adapter o2) {
95 int delta = o2.getPriority() - o1.getPriority();
98 return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(o1.getText(), o2.getText());
102 for (Adapter a : adapters)
103 addMenuItem(subMenu, a, r);
110 private void addMenuItem(Menu subMenu, Adapter adapter, Object r) {
111 MenuItem item = new MenuItem(subMenu, SWT.PUSH);
112 String text = adapter.getText();
113 if (DEBUG_ADAPTERS) {
114 text = text + " (" + adapter.getAdapter().getClass().getCanonicalName() + ") [" + adapter.getPriority() + "]";
117 ImageDescriptor descriptor = adapter.getImageDescriptor();
118 if (descriptor != null) {
119 item.setImage(resourceManager.createImage(descriptor));
121 item.addSelectionListener(adapter);
124 static class Adapter extends ResourceEditorAdapterAction implements SelectionListener {
127 public Adapter(EditorAdapter adapter, Object r, boolean remember) {
129 this.remember = remember;
133 public void widgetDefaultSelected(SelectionEvent e) {
138 public void widgetSelected(SelectionEvent e) {
143 protected void safeRun() throws Exception {
147 // Make this choice the default for the next time.
148 EditorRegistry.getInstance().getMappings().put(getResource(), getAdapter());