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;
70 protected String getText() {
75 protected IContributionItem[] getContributionItems(ReadGraph graph, Object[] selection) throws DatabaseException {
76 final Object r = extractResource(graph, selection[0]);
79 final EditorAdapter[] editorAdapters = EditorRegistry.getInstance().getAdaptersFor(graph, r);
80 if (editorAdapters.length == 0)
83 return new IContributionItem[] {
84 new ContributionItem() {
86 public void fill(Menu menu, int index) {
87 MenuItem openWith = new MenuItem(menu, SWT.CASCADE, index);
88 openWith.setText(getText());
89 openWith.setEnabled(editorAdapters.length > 0);
90 Menu subMenu = new Menu(menu);
91 openWith.setMenu(subMenu);
93 if (editorAdapters.length > 0) {
94 // Sort the open with actions in descending priority order.
95 Adapter[] adapters = new Adapter[editorAdapters.length];
96 for (int i = 0; i < editorAdapters.length; i++)
97 adapters[i] = new Adapter(editorAdapters[i], r, true);
98 Arrays.sort(adapters, new Comparator<Adapter>() {
100 public int compare(Adapter o1, Adapter o2) {
101 int delta = o2.getPriority() - o1.getPriority();
104 return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(o1.getText(), o2.getText());
108 for (Adapter a : adapters)
109 addMenuItem(subMenu, a, r);
116 private void addMenuItem(Menu subMenu, Adapter adapter, Object r) {
117 MenuItem item = new MenuItem(subMenu, SWT.PUSH);
118 String text = adapter.getText();
119 if (DEBUG_ADAPTERS) {
120 text = text + " (" + adapter.getAdapter().getClass().getCanonicalName() + ") [" + adapter.getPriority() + "]";
123 ImageDescriptor descriptor = adapter.getImageDescriptor();
124 if (descriptor != null) {
125 item.setImage(resourceManager.createImage(descriptor));
127 item.addSelectionListener(adapter);
130 static class Adapter extends ResourceEditorAdapterAction implements SelectionListener {
133 public Adapter(EditorAdapter adapter, Object r, boolean remember) {
135 this.remember = remember;
139 public void widgetDefaultSelected(SelectionEvent e) {
144 public void widgetSelected(SelectionEvent e) {
149 protected void safeRun() throws Exception {
153 // Make this choice the default for the next time.
154 EditorRegistry.getInstance().getMappings().put(getResource(), getAdapter());