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.ArrayList;
15 import java.util.Arrays;
16 import java.util.Comparator;
17 import java.util.Hashtable;
18 import java.util.List;
20 import org.eclipse.core.runtime.CoreException;
21 import org.eclipse.core.runtime.IConfigurationElement;
22 import org.eclipse.core.runtime.IExecutableExtension;
23 import org.eclipse.jface.action.ContributionItem;
24 import org.eclipse.jface.action.IContributionItem;
25 import org.eclipse.jface.resource.ImageDescriptor;
26 import org.eclipse.jface.resource.JFaceResources;
27 import org.eclipse.jface.resource.LocalResourceManager;
28 import org.eclipse.jface.resource.ResourceManager;
29 import org.eclipse.swt.SWT;
30 import org.eclipse.swt.events.SelectionEvent;
31 import org.eclipse.swt.events.SelectionListener;
32 import org.eclipse.swt.widgets.Menu;
33 import org.eclipse.swt.widgets.MenuItem;
34 import org.simantics.db.ReadGraph;
35 import org.simantics.db.Resource;
36 import org.simantics.db.exception.DatabaseException;
37 import org.simantics.ui.selection.WorkbenchSelectionUtils;
38 import org.simantics.ui.workbench.action.ResourceEditorAdapterAction;
39 import org.simantics.ui.workbench.editor.EditorAdapter;
40 import org.simantics.ui.workbench.editor.EditorRegistry;
41 import org.simantics.utils.strings.AlphanumComparator;
42 import org.simantics.utils.ui.workbench.WorkbenchUtils;
46 * @author Tuukka Lehtonen
48 public class OpenWithMenuContribution extends DynamicMenuContribution implements IExecutableExtension{
50 private static final boolean DEBUG_ADAPTERS = false;
52 protected ResourceManager resourceManager;
54 private String editorId = null;
55 public OpenWithMenuContribution() {
56 resourceManager = new LocalResourceManager(JFaceResources.getResources());
60 public void setInitializationData(IConfigurationElement config, String propertyName, Object data)
61 throws CoreException {
62 if ("class".equals(propertyName)) {
63 if (data instanceof String) {
64 setEditorId((String)data);
65 } else if (data instanceof Hashtable) {
66 @SuppressWarnings("unchecked")
67 Hashtable<String,String> params = (Hashtable<String, String>)data;
68 setEditorId(params.get("editorId"));
70 if ("activeEditorId".equals(this.editorId)) {
71 setEditorId(WorkbenchUtils.getActiveWorkbenchPart().getSite().getId());
76 public String getEditorId() {
80 public void setEditorId(String editorId) {
81 this.editorId = editorId;
85 public void dispose() {
86 if (resourceManager != null) {
87 resourceManager.dispose();
88 resourceManager = null;
93 protected Object extractResource(ReadGraph graph, Object object) throws DatabaseException {
94 Resource resource = WorkbenchSelectionUtils.getPossibleResourceFromSelection(graph, object);
95 return resource != null ? resource : object;
99 protected boolean preAcceptSelection(Object[] selection) {
100 return selection.length == 1;
103 protected String getText() {
108 protected IContributionItem[] getContributionItems(ReadGraph graph, Object[] selection) throws DatabaseException {
109 final Object r = extractResource(graph, selection[0]);
112 EditorAdapter[] _editorAdapters = EditorRegistry.getInstance().getAdaptersFor(graph, r);
113 final EditorAdapter[] editorAdapters = filter(_editorAdapters, editorId);
114 if (editorAdapters.length == 0)
118 return new IContributionItem[] {
119 new ContributionItem() {
121 public void fill(Menu menu, int index) {
122 MenuItem openWith = new MenuItem(menu, SWT.CASCADE, index);
123 openWith.setText(getText());
124 openWith.setEnabled(editorAdapters.length > 0);
125 Menu subMenu = new Menu(menu);
126 openWith.setMenu(subMenu);
128 if (editorAdapters.length > 0) {
129 // Sort the open with actions in descending priority order.
130 Adapter[] adapters = toAdapters(editorAdapters, r);
132 for (Adapter a : adapters)
133 addMenuItem(subMenu, a, r);
140 protected Adapter[] toAdapters(EditorAdapter[] editorAdapters, Object r) {
141 Adapter[] adapters = new Adapter[editorAdapters.length];
142 for (int i = 0; i < editorAdapters.length; i++)
143 adapters[i] = new Adapter(editorAdapters[i], r, true);
144 Arrays.sort(adapters, new Comparator<Adapter>() {
146 public int compare(Adapter o1, Adapter o2) {
147 int delta = o2.getPriority() - o1.getPriority();
150 return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(o1.getText(), o2.getText());
156 protected EditorAdapter[] filter(EditorAdapter[] adapters, String id) {
159 List<EditorAdapter> editorAdapters = new ArrayList<EditorAdapter>();
160 for (EditorAdapter a : adapters) {
161 if (id.equals(a.getEditorId()))
163 editorAdapters.add(a);
165 return editorAdapters.toArray(new EditorAdapter[editorAdapters.size()]);
168 private void addMenuItem(Menu subMenu, Adapter adapter, Object r) {
169 MenuItem item = new MenuItem(subMenu, SWT.PUSH);
170 String text = adapter.getText();
171 if (DEBUG_ADAPTERS) {
172 text = text + " (" + adapter.getAdapter().getClass().getCanonicalName() + ") [" + adapter.getPriority() + "]";
175 ImageDescriptor descriptor = adapter.getImageDescriptor();
176 if (descriptor != null) {
177 item.setImage(resourceManager.createImage(descriptor));
179 item.addSelectionListener(adapter);
182 protected static class Adapter extends ResourceEditorAdapterAction implements SelectionListener {
185 public Adapter(EditorAdapter adapter, Object r, boolean remember) {
187 this.remember = remember;
191 public void widgetDefaultSelected(SelectionEvent e) {
196 public void widgetSelected(SelectionEvent e) {
201 protected void safeRun() throws Exception {
205 // Make this choice the default for the next time.
206 EditorRegistry.getInstance().getMappings().put(getResource(), getAdapter());