actions/e4/PageSettingsHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   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
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.ui.actions.e4;
  13
  14 import javax.inject.Named;
  15
  16 import org.eclipse.e4.core.di.annotations.CanExecute;
  17 import org.eclipse.e4.core.di.annotations.Execute;
  18 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  19 import org.eclipse.e4.ui.services.IServiceConstants;
  20 import org.eclipse.ui.IEditorPart;
  21 import org.eclipse.ui.IWorkbenchPart;
  22 import org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor;
  23 import org.simantics.db.Resource;
  24 import org.simantics.modeling.ui.diagram.PageSettingsDialog;
  25 import org.simantics.modeling.ui.diagramEditor.DiagramEditor;
  26 import org.simantics.ui.workbench.IResourceEditorInput;
  27 import org.simantics.utils.ui.workbench.WorkbenchUtils;
  28
  29
  30 /**
  31  * A Handler that shows PageSettings Dialog for DiagramViewer
  32  *
  33  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  34  */
  35 public class PageSettingsHandler {
  36
  37     @CanExecute
  38     public boolean canExecute(@Named(IServiceConstants.ACTIVE_PART) MPart mActiveEditor) {
  39         // TODO: Fix this when we get rid of CompatibilityEditors
  40         IEditorPart activeEditor = null;
  41         if (mActiveEditor != null && mActiveEditor.getObject() instanceof CompatibilityEditor) {
  42             CompatibilityEditor compatEditor = (CompatibilityEditor) mActiveEditor.getObject();
  43             activeEditor = compatEditor.getEditor();
  44         } else {
  45             // TODO: This is not good practice with E4 but an OK fallback for now
  46 //            activeEditor = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor();
  47         }
  48         if (activeEditor == null)
  49             return false;
  50
  51         if (activeEditor instanceof DiagramEditor) {
  52             DiagramEditor editor = (DiagramEditor) activeEditor;
  53             IResourceEditorInput input = (IResourceEditorInput)editor.getEditorInput();
  54             Resource diagramResource = input.getResource();
  55             if (diagramResource != null)
  56                 return true;
  57         }
  58         return false;
  59     }
  60
  61     @Execute
  62     public void execute(){
  63         IWorkbenchPart ap = WorkbenchUtils.getActiveEditor();
  64         if (ap instanceof DiagramEditor) {
  65             DiagramEditor editor = (DiagramEditor) ap;
  66             IResourceEditorInput input = (IResourceEditorInput)editor.getEditorInput();
  67             Resource diagramResource = input.getResource();
  68             if (diagramResource == null)
  69                 return;
  70
  71             PageSettingsDialog dialog = new PageSettingsDialog(diagramResource, ap.getSite().getShell());
  72             if (dialog.open() == PageSettingsDialog.OK) {
  73                 dialog.applySettings();
  74             }
  75         }
  76     }
  77
  78 }