1) Removed outdated PHPSourceLocator extension entry.
[phpeclipse.git] / 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 }