X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Fworkbench%2FPerspectiveContextActivator.java;fp=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Fworkbench%2FPerspectiveContextActivator.java;h=b3ee4b2c47f4c87f0246604354b0806fb7810948;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/workbench/PerspectiveContextActivator.java b/bundles/org.simantics.ui/src/org/simantics/ui/workbench/PerspectiveContextActivator.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.workbench;
+
+import java.util.List;
+
+import org.eclipse.ui.IPerspectiveDescriptor;
+import org.eclipse.ui.IPerspectiveListener4;
+import org.eclipse.ui.IWindowListener;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchPartReference;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.contexts.IContextActivation;
+import org.eclipse.ui.contexts.IContextService;
+import org.simantics.utils.datastructures.MapList;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class PerspectiveContextActivator implements IPerspectiveListener4, IWindowListener {
+
+    private IWorkbenchWindow                    activeWindow;
+
+    private String                              oldPerspective;
+
+    private MapList<String, IContextActivation> activations = new MapList<String, IContextActivation>();
+
+
+    public PerspectiveContextActivator() {
+        PlatformUI.getWorkbench().addWindowListener(this);
+    }
+
+    public void dispose() {
+        PlatformUI.getWorkbench().removeWindowListener(this);
+    }
+
+    //------------------------------------------------------------------------
+    // IPerspectiveListener4
+    //------------------------------------------------------------------------
+
+    @Override
+    public void perspectivePreDeactivate(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
+    }
+
+    @Override
+    public void perspectiveClosed(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
+    }
+
+    @Override
+    public void perspectiveDeactivated(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
+    }
+
+    @Override
+    public void perspectiveOpened(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
+    }
+
+    @Override
+    public void perspectiveSavedAs(IWorkbenchPage page, IPerspectiveDescriptor oldPerspective,
+            IPerspectiveDescriptor newPerspective) {
+    }
+
+    @Override
+    public void perspectiveChanged(IWorkbenchPage page, IPerspectiveDescriptor perspective,
+            IWorkbenchPartReference partRef, String changeId) {
+        // See IWorkbenchPage.CHANGED_* constants for change id's.
+    }
+
+    @Override
+    public void perspectiveActivated(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
+        activatePerspective(perspective.getId());
+    }
+
+    @Override
+    public void perspectiveChanged(IWorkbenchPage page, IPerspectiveDescriptor perspective, String changeId) {
+        // See IWorkbenchPage.CHANGED_* constants for change id's.
+    }
+
+    //------------------------------------------------------------------------
+    // IWindowListener
+    //------------------------------------------------------------------------
+
+    @Override
+    public void windowActivated(IWorkbenchWindow window) {
+//        System.out.println("attaching to window: " + window);
+        attachToWindow(window);
+    }
+
+    @Override
+    public void windowClosed(IWorkbenchWindow window) {
+    }
+
+    @Override
+    public void windowDeactivated(IWorkbenchWindow window) {
+//        System.out.println("detaching from window: " + window);
+        detachFromWindow(window);
+    }
+
+    @Override
+    public void windowOpened(IWorkbenchWindow window) {
+    }
+
+    //------------------------------------------------------------------------
+    // UTILITIES
+    //------------------------------------------------------------------------
+
+    private void attachToWindow(IWorkbenchWindow window) {
+        activeWindow = window;
+        window.addPerspectiveListener(this);
+        IPerspectiveDescriptor perspective = window.getActivePage().getPerspective();
+        if (perspective != null) {
+            activatePerspective(perspective.getId());
+        }
+    }
+
+    private void detachFromWindow(IWorkbenchWindow window) {
+        window.removePerspectiveListener(this);
+    }
+
+    private IContextService getService(IWorkbenchWindow window) {
+        return (IContextService) window.getWorkbench().getService(IContextService.class);
+        //return (IContextService) window.getService(IContextService.class);
+    }
+
+    private IContextActivation activate(String ctx) {
+        IContextService contextService = getService(activeWindow);
+        if (contextService != null && ctx != null) {
+            IContextActivation act = contextService.activateContext(ctx);
+//            System.out.println("activating context: " + act);
+            return act;
+        }
+        return null;
+    }
+
+    private void deactivate(IContextActivation activation) {
+        IContextService contextService = getService(activeWindow);
+        if (contextService != null && activation != null) {
+//            System.out.println("deactivating context: " + activation);
+            contextService.deactivateContext(activation);
+        }
+    }
+
+    private void activatePerspective(String perspectiveId) {
+//        System.out.println("activating perspective: " + perspectiveId + " (old=" + oldPerspective + ")");
+
+        if (oldPerspective != null) {
+            if (oldPerspective.equals(perspectiveId))
+                return;
+
+            List<IContextActivation> acts = activations.getValues(oldPerspective);
+            if (acts != null) {
+                activations.remove(oldPerspective);
+                for (IContextActivation act : acts) {
+                    deactivate(act);
+                }
+            }
+        }
+        List<IPerspectiveContextExtension> exts = PerspectiveContextBindingManager.getInstance().getExtensions(perspectiveId);
+        for (IPerspectiveContextExtension ext : exts) {
+            for (String ctx : ext.getContextIds()) {
+                IContextActivation activation = activate(ctx);
+                if (activation != null) {
+                    activations.add(perspectiveId, activation);
+                }
+            }
+        }
+        oldPerspective = perspectiveId;
+    }
+
+}