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 net.sourceforge.phpeclipse.phpeditor.PHPEditor;
  14
  15 import org.eclipse.jface.action.IAction;
  16 import org.eclipse.jface.action.IMenuManager;
  17 import org.eclipse.jface.text.source.ISourceViewer;
  18 import org.eclipse.jface.text.source.IVerticalRulerInfo;
  19 import org.eclipse.jface.text.source.projection.ProjectionViewer;
  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
  27 /**
  28  * Groups the JDT folding actions.
  29  *
  30  * @since 3.0
  31  */
  32 public class FoldingToggleRulerAction extends AbstractRulerActionDelegate {
  33
  34         private IAction fUIAction;
  35         private TextOperationAction fAction;
  36         private ITextEditor fTextEditor;
  37
  38         /*
  39          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#createAction(org.eclipse.ui.texteditor.ITextEditor, org.eclipse.jface.text.source.IVerticalRulerInfo)
  40          */
  41         protected IAction createAction(ITextEditor editor, IVerticalRulerInfo rulerInfo) {
  42                 fTextEditor= editor;
  43                 fAction= new TextOperationAction(ActionMessages.getResourceBundle(), "Projection.Toggle.", editor, ProjectionViewer.TOGGLE, true); //$NON-NLS-1$
  44                 fAction.setActionDefinitionId(IFoldingCommandIds.FOLDING_TOGGLE);
  45
  46                 return fAction;
  47         }
  48
  49         /*
  50          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction, org.eclipse.ui.IEditorPart)
  51          */
  52         public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) {
  53                 fUIAction= callerAction;
  54                 super.setActiveEditor(callerAction, targetEditor);
  55         }
  56
  57         /*
  58          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#menuAboutToShow(org.eclipse.jface.action.IMenuManager)
  59          */
  60         public void menuAboutToShow(IMenuManager manager) {
  61                 update();
  62                 super.menuAboutToShow(manager);
  63         }
  64
  65         private void update() {
  66                 if (fTextEditor instanceof PHPEditor) {
  67                         ISourceViewer viewer= ((PHPEditor) fTextEditor).getViewer();
  68                         if (viewer instanceof ProjectionViewer) {
  69                                 boolean enabled= ((ProjectionViewer) viewer).getProjectionAnnotationModel() != null;
  70                                 fUIAction.setChecked(enabled);
  71                         }
  72                 }
  73         }
  74 }