X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=inline;f=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Fcontribution%2FOpenWithMenuContribution.java;fp=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Fcontribution%2FOpenWithMenuContribution.java;h=6579efab8258015e6af3cb02550e8cda6f534d2b;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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