net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/actions/FoldingToggleRulerAction.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.ui.actions;
  12
  13 import org.eclipse.jface.action.IAction;
  14 import org.eclipse.jface.action.IMenuManager;
  15
  16 import org.eclipse.jface.text.source.ISourceViewer;
  17 import org.eclipse.jface.text.source.IVerticalRulerInfo;
  18 import org.eclipse.jface.text.source.projection.ProjectionViewer;
  19
  20 import org.eclipse.ui.IEditorPart;
  21 import org.eclipse.ui.editors.text.IFoldingCommandIds;
  22 import org.eclipse.ui.texteditor.AbstractRulerActionDelegate;
  23 import org.eclipse.ui.texteditor.ITextEditor;
  24 import org.eclipse.ui.texteditor.TextOperationAction;
  25
  26 import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
  27
  28
  29 /**
  30  * Groups the JDT folding actions.
  31  *
  32  * @since 3.0
  33  */
  34 public class FoldingToggleRulerAction extends AbstractRulerActionDelegate {
  35
  36         private IAction fUIAction;
  37         private TextOperationAction fAction;
  38         private ITextEditor fTextEditor;
  39
  40         /*
  41          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#createAction(org.eclipse.ui.texteditor.ITextEditor, org.eclipse.jface.text.source.IVerticalRulerInfo)
  42          */
  43         protected IAction createAction(ITextEditor editor, IVerticalRulerInfo rulerInfo) {
  44                 fTextEditor= editor;
  45                 fAction= new TextOperationAction(ActionMessages.getResourceBundle(), "Projection.Toggle.", editor, ProjectionViewer.TOGGLE, true); //$NON-NLS-1$
  46                 fAction.setActionDefinitionId(IFoldingCommandIds.FOLDING_TOGGLE);
  47
  48                 return fAction;
  49         }
  50
  51         /*
  52          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction, org.eclipse.ui.IEditorPart)
  53          */
  54         public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) {
  55                 fUIAction= callerAction;
  56                 super.setActiveEditor(callerAction, targetEditor);
  57         }
  58
  59         /*
  60          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#menuAboutToShow(org.eclipse.jface.action.IMenuManager)
  61          */
  62         public void menuAboutToShow(IMenuManager manager) {
  63                 update();
  64                 super.menuAboutToShow(manager);
  65         }
  66
  67         private void update() {
  68                 if (fTextEditor instanceof PHPEditor) {
  69                         ISourceViewer viewer= ((PHPEditor) fTextEditor).getViewer();
  70                         if (viewer instanceof ProjectionViewer) {
  71                                 boolean enabled= ((ProjectionViewer) viewer).getProjectionAnnotationModel() != null;
  72                                 fUIAction.setChecked(enabled);
  73                         }
  74                 }
  75         }
  76 }