net.sourceforge.phpeclipse.ui/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  * Groups the JDT folding actions.
  28  *
  29  * @since 3.0
  30  */
  31 public class FoldingToggleRulerAction extends AbstractRulerActionDelegate {
  32
  33         private IAction fUIAction;
  34
  35         private TextOperationAction fAction;
  36
  37         private ITextEditor fTextEditor;
  38
  39         /*
  40          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#createAction(org.eclipse.ui.texteditor.ITextEditor,
  41          *      org.eclipse.jface.text.source.IVerticalRulerInfo)
  42          */
  43         protected IAction createAction(ITextEditor editor,
  44                         IVerticalRulerInfo rulerInfo) {
  45                 fTextEditor = editor;
  46                 fAction = new TextOperationAction(ActionMessages.getResourceBundle(),
  47                                 "Projection.Toggle.", editor, ProjectionViewer.TOGGLE, true); //$NON-NLS-1$
  48                 fAction.setActionDefinitionId(IFoldingCommandIds.FOLDING_TOGGLE);
  49
  50                 return fAction;
  51         }
  52
  53         /*
  54          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction,
  55          *      org.eclipse.ui.IEditorPart)
  56          */
  57         public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) {
  58                 fUIAction = callerAction;
  59                 super.setActiveEditor(callerAction, targetEditor);
  60         }
  61
  62         /*
  63          * @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#menuAboutToShow(org.eclipse.jface.action.IMenuManager)
  64          */
  65         public void menuAboutToShow(IMenuManager manager) {
  66                 update();
  67                 super.menuAboutToShow(manager);
  68         }
  69
  70         private void update() {
  71                 if (fTextEditor instanceof PHPEditor) {
  72                         ISourceViewer viewer = ((PHPEditor) fTextEditor).getViewer();
  73                         if (viewer instanceof ProjectionViewer) {
  74                                 boolean enabled = ((ProjectionViewer) viewer)
  75                                                 .getProjectionAnnotationModel() != null;
  76                                 fUIAction.setChecked(enabled);
  77                         }
  78                 }
  79         }
  80 }