Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.ui / src / org / simantics / ui / contribution / OpenWithMenuContribution.java

diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/contribution/OpenWithMenuContribution.java b/bundles/org.simantics.ui/src/org/simantics/ui/contribution/OpenWithMenuContribution.java
new file mode 100644 (file)
index 0000000..6579efa
--- /dev/null
+++ b/bundles/org.simantics.ui/src/org/simantics/ui/contribution/OpenWithMenuContribution.java
@@ -0,0 +1,154 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.ui.contribution;\r
+\r
+import java.util.Arrays;\r
+import java.util.Comparator;\r
+\r
+import org.eclipse.jface.action.ContributionItem;\r
+import org.eclipse.jface.action.IContributionItem;\r
+import org.eclipse.jface.resource.ImageDescriptor;\r
+import org.eclipse.jface.resource.JFaceResources;\r
+import org.eclipse.jface.resource.LocalResourceManager;\r
+import org.eclipse.jface.resource.ResourceManager;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.events.SelectionEvent;\r
+import org.eclipse.swt.events.SelectionListener;\r
+import org.eclipse.swt.widgets.Menu;\r
+import org.eclipse.swt.widgets.MenuItem;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.ui.utils.ResourceAdaptionUtils;\r
+import org.simantics.ui.workbench.action.ResourceEditorAdapterAction;\r
+import org.simantics.ui.workbench.editor.EditorAdapter;\r
+import org.simantics.ui.workbench.editor.EditorRegistry;\r
+import org.simantics.utils.strings.AlphanumComparator;\r
+\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class OpenWithMenuContribution extends DynamicMenuContribution {\r
+\r
+    private static final boolean DEBUG_ADAPTERS = false;\r
+\r
+    private ResourceManager resourceManager;\r
+\r
+    public OpenWithMenuContribution() {\r
+        resourceManager = new LocalResourceManager(JFaceResources.getResources());\r
+    }\r
+\r
+    @Override\r
+    public void dispose() {\r
+        if (resourceManager != null) {\r
+            resourceManager.dispose();\r
+            resourceManager = null;\r
+        }\r
+        super.dispose();\r
+    }\r
+\r
+    protected Object extractResource(ReadGraph graph, Object object) throws DatabaseException {\r
+       Resource resource = ResourceAdaptionUtils.adaptToResource(graph, object);\r
+       if(resource != null) return resource;\r
+       else return object; \r
+    }\r
+    \r
+    @Override\r
+    protected boolean preAcceptSelection(Object[] selection) {\r
+        return selection.length == 1;\r
+    }\r
+\r
+    @Override\r
+    protected IContributionItem[] getContributionItems(ReadGraph graph, Object[] selection) throws DatabaseException {\r
+        final Object r = extractResource(graph, selection[0]);\r
+        final EditorAdapter[] editorAdapters = EditorRegistry.getInstance().getAdaptersFor(graph, r);\r
+        if (editorAdapters.length == 0)\r
+            return NONE;\r
+\r
+        return new IContributionItem[] {\r
+                new ContributionItem() {\r
+                    @Override\r
+                    public void fill(Menu menu, int index) {\r
+                        MenuItem openWith = new MenuItem(menu, SWT.CASCADE, index);\r
+                        openWith.setText("Open With");\r
+                        openWith.setEnabled(editorAdapters.length > 0);\r
+                        Menu subMenu = new Menu(menu);\r
+                        openWith.setMenu(subMenu);\r
+\r
+                        if (editorAdapters.length > 0) {\r
+                            // Sort the open with actions in descending priority order.\r
+                            Adapter[] adapters = new Adapter[editorAdapters.length];\r
+                            for (int i = 0; i < editorAdapters.length; i++)\r
+                                adapters[i] = new Adapter(editorAdapters[i], r, true);\r
+                            Arrays.sort(adapters, new Comparator<Adapter>() {\r
+                                @Override\r
+                                public int compare(Adapter o1, Adapter o2) {\r
+                                    int delta = o2.getPriority() - o1.getPriority();\r
+                                    if (delta != 0)\r
+                                        return delta;\r
+                                    return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(o1.getText(), o2.getText());\r
+                                }\r
+                            });\r
+\r
+                            for (Adapter a : adapters)\r
+                                addMenuItem(subMenu, a, r);\r
+                        }\r
+                    }\r
+                }\r
+        };\r
+    }\r
+\r
+    private void addMenuItem(Menu subMenu, Adapter adapter, Object r) {\r
+        MenuItem item = new MenuItem(subMenu, SWT.PUSH);\r
+        String text = adapter.getText();\r
+        if (DEBUG_ADAPTERS) {\r
+            text = text + " (" + adapter.getAdapter().getClass().getCanonicalName() + ") [" + adapter.getPriority() + "]";\r
+        }\r
+        item.setText(text);\r
+        ImageDescriptor descriptor = adapter.getImageDescriptor();\r
+        if (descriptor != null) {\r
+            item.setImage(resourceManager.createImage(descriptor));\r
+        }\r
+        item.addSelectionListener(adapter);\r
+    }\r
+\r
+    static class Adapter extends ResourceEditorAdapterAction implements SelectionListener {\r
+        boolean remember;\r
+\r
+        public Adapter(EditorAdapter adapter, Object r, boolean remember) {\r
+            super(adapter, r);\r
+            this.remember = remember;\r
+        }\r
+\r
+        @Override\r
+        public void widgetDefaultSelected(SelectionEvent e) {\r
+            widgetSelected(e);\r
+        }\r
+\r
+        @Override\r
+        public void widgetSelected(SelectionEvent e) {\r
+            run();\r
+        }\r
+\r
+        @Override\r
+        protected void safeRun() throws Exception {\r
+            super.safeRun();\r
+\r
+            if (remember) {\r
+                // Make this choice the default for the next time.\r
+                EditorRegistry.getInstance().getMappings().put(getResource(), getAdapter());\r
+            }\r
+        }\r
+    }\r
+\r
+}\r