net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/actions/PHPEclipseShowContextHelp.java

   1 /**********************************************************************
   2 Copyright (c) 2000, 2002 IBM Corp. 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 implementation
  10     Klaus Hartlage - www.eclipseproject.de
  11 **********************************************************************/
  12 package net.sourceforge.phpeclipse.actions;
  13
  14 import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
  15 import org.eclipse.jface.action.IAction;
  16 import org.eclipse.jface.text.TextSelection;
  17 import org.eclipse.jface.viewers.ISelection;
  18 import org.eclipse.ui.IEditorActionDelegate;
  19 import org.eclipse.ui.IEditorPart;
  20 import org.eclipse.ui.IWorkbenchWindow;
  21 import org.eclipse.ui.actions.ActionDelegate;
  22
  23 public class PHPEclipseShowContextHelp extends ActionDelegate implements IEditorActionDelegate {
  24
  25   private IWorkbenchWindow window;
  26   private PHPEditor editor;
  27
  28   public void dispose() {
  29   }
  30
  31   public void init(IWorkbenchWindow window) {
  32     this.window = window;
  33   }
  34
  35   public void selectionChanged(IAction action, ISelection selection) {
  36     if (!selection.isEmpty()) {
  37       if (selection instanceof TextSelection) {
  38         action.setEnabled(true);
  39       } else if (window.getActivePage() != null && window.getActivePage().getActivePart() != null) {
  40         //
  41       }
  42     }
  43   }
  44
  45   public void run(IAction action) {
  46     if (editor == null) {
  47       IEditorPart targetEditor = window.getActivePage().getActiveEditor();
  48       if (targetEditor != null && (targetEditor instanceof PHPEditor)) {
  49         editor = (PHPEditor) targetEditor;
  50       }
  51     }
  52     if (editor != null) {
  53       editor.openContextHelp();
  54     }
  55   }
  56
  57   public void setActiveEditor(IAction action, IEditorPart targetEditor) {
  58     if (targetEditor != null && (targetEditor instanceof PHPEditor)) {
  59       editor = (PHPEditor) targetEditor;
  60     }
  61   }
  62
  63 }