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   1 /*
   2  * Copyright (c) 2002-2004 Widespace, OU 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  *     Igor Malinin - initial contribution
  10  *     Christopher Lenz - integrated outline page
  11  *
  12  * $Id: XMLEditor.java,v 1.1 2004-09-02 18:28:04 jsurfer Exp $
  13  */
  14
  15 package net.sourceforge.phpeclipse.xml.ui.internal.editor;
  16
  17 import java.util.ArrayList;
  18 import java.util.List;
  19
  20 import net.sourceforge.phpeclipse.core.model.ISourceReference;
  21 import net.sourceforge.phpeclipse.ui.text.IReconcilingParticipant;
  22 import net.sourceforge.phpeclipse.xml.ui.XMLPlugin;
  23 import net.sourceforge.phpeclipse.xml.ui.internal.outline.XMLOutlinePage;
  24 import net.sourceforge.phpeclipse.xml.ui.internal.text.XMLConfiguration;
  25 import net.sourceforge.phpeclipse.xml.ui.text.XMLTextTools;
  26
  27 import org.eclipse.jface.action.IAction;
  28 import org.eclipse.jface.preference.IPreferenceStore;
  29 import org.eclipse.jface.text.IRegion;
  30 import org.eclipse.jface.util.PropertyChangeEvent;
  31 import org.eclipse.jface.viewers.ISelectionChangedListener;
  32 import org.eclipse.jface.viewers.IStructuredSelection;
  33 import org.eclipse.jface.viewers.SelectionChangedEvent;
  34 import org.eclipse.swt.widgets.Shell;
  35 import org.eclipse.ui.editors.text.EditorsUI;
  36 import org.eclipse.ui.editors.text.TextEditor;
  37 import org.eclipse.ui.texteditor.ChainedPreferenceStore;
  38 import org.eclipse.ui.texteditor.ContentAssistAction;
  39 import org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds;
  40 import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
  41
  42 /**
  43  * XML Editor.
  44  *
  45  * @author Igor Malinin
  46  */
  47 public class XMLEditor extends TextEditor implements IReconcilingParticipant {
  48
  49     /**
  50      * Listens to changes to the selection in the outline page, and changes the
  51      * selection and highlight range in the editor accordingly.
  52      */
  53     private class OutlineSelectionChangedListener
  54         implements ISelectionChangedListener {
  55
  56         /*
  57          * @see ISelectionChangedListener#selectionChanged(SelectionChangedEvent)
  58          */
  59         public void selectionChanged(SelectionChangedEvent event) {
  60             IStructuredSelection selection =
  61                 (IStructuredSelection) event.getSelection();
  62             if (selection.isEmpty()) {
  63                 resetHighlightRange();
  64             } else {
  65                 ISourceReference element = (ISourceReference)
  66                                         selection.getFirstElement();
  67                 highlightElement(element, true);
  68             }
  69         }
  70
  71     }
  72
  73     /**
  74      * The associated outline page.
  75      */
  76         XMLOutlinePage outlinePage;
  77
  78     /**
  79      * Listens to changes in the outline page's selection to update the editor
  80      * selection and highlight range.
  81      */
  82     private ISelectionChangedListener outlineSelectionChangedListener;
  83
  84     /**
  85      * Constructor.
  86      */
  87         public XMLEditor() {
  88                 List stores = new ArrayList(3);
  89
  90                 stores.add(XMLPlugin.getDefault().getPreferenceStore());
  91                 stores.add(EditorsUI.getPreferenceStore());
  92
  93                 setPreferenceStore(
  94                         new ChainedPreferenceStore(
  95                                 (IPreferenceStore[]) stores
  96                                         .toArray(new IPreferenceStore[stores.size()])));
  97         }
  98
  99         /*
 100          * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
 101          */
 102         public Object getAdapter(Class adapter) {
 103                 if (adapter.equals(IContentOutlinePage.class)) {
 104                         if (outlinePage == null) {
 105                                 outlinePage = new XMLOutlinePage(this);
 106                 outlineSelectionChangedListener =
 107                     new OutlineSelectionChangedListener();
 108                 outlinePage.addSelectionChangedListener(
 109                 outlineSelectionChangedListener);
 110                         }
 111
 112                         return outlinePage;
 113                 }
 114
 115                 return super.getAdapter(adapter);
 116         }
 117
 118         /*
 119          * @see IReconcilingParticipant#reconciled()
 120          */
 121         public void reconciled() {
 122                 Shell shell = getSite().getShell();
 123                 if ((shell != null) && !shell.isDisposed()) {
 124                         shell.getDisplay().asyncExec(new Runnable() {
 125                                 public void run() {
 126                                         if (outlinePage != null) {
 127                                                 outlinePage.update();
 128                                         }
 129                                 }
 130                         });
 131                 }
 132         }
 133
 134         /*
 135          * @see org.eclipse.ui.editors.text.TextEditor#initializeEditor()
 136          */
 137         protected void initializeEditor() {
 138                 super.initializeEditor();
 139
 140                 XMLTextTools xmlTextTools = XMLPlugin.getDefault().getXMLTextTools();
 141                 setSourceViewerConfiguration(new XMLConfiguration(xmlTextTools, this));
 142                 setDocumentProvider(new XMLDocumentProvider());
 143         }
 144
 145         /*
 146          * @see org.eclipse.ui.texteditor.AbstractTextEditor#affectsTextPresentation(PropertyChangeEvent)
 147          */
 148         protected boolean affectsTextPresentation(PropertyChangeEvent event) {
 149                 return XMLPlugin.getDefault().getXMLTextTools().affectsBehavior(event);
 150         }
 151
 152     void highlightElement(ISourceReference element,
 153                 boolean moveCursor) {
 154         if (element != null) {
 155             IRegion highlightRegion = element.getSourceRegion();
 156             setHighlightRange(highlightRegion.getOffset(),
 157                 highlightRegion.getLength(), moveCursor);
 158         } else {
 159             resetHighlightRange();
 160         }
 161     }
 162
 163     protected void createActions() {
 164                 super.createActions();
 165
 166                 IAction action = new ContentAssistAction(XMLEditorMessages.getResourceBundle(),
 167                 "ContentAssistProposal.", this); //$NON-NLS-1$
 168             action
 169                 .setActionDefinitionId(ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS);
 170             setAction("ContentAssistProposal", action); //$NON-NLS-1$
 171             markAsStateDependentAction("ContentAssistProposal", true); //$NON-NLS-1$
 172
 173 //              IAction action= new TextOperationAction(
 174 //                              TemplateMessages.getResourceBundle(),
 175 //                              "Editor." + TEMPLATE_PROPOSALS + ".", //$NON-NLS-1$ //$NON-NLS-2$
 176 //                              this,
 177 //                              ISourceViewer.CONTENTASSIST_PROPOSALS);
 178 //              action.setActionDefinitionId(ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS);
 179 //              setAction(TEMPLATE_PROPOSALS, action);
 180 //              markAsStateDependentAction(TEMPLATE_PROPOSALS, true);
 181         }
 182 }