/***********************************************************************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others. All rights reserved. This program and the accompanying materials are made
 * available under the terms of the Common Public License v1.0 which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 **********************************************************************************************************************************/
package net.sourceforge.phpeclipse.wiki.editor;

import net.sourceforge.phpeclipse.wiki.editor.model.WikipediaSection;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.IVerticalRuler;
import org.eclipse.jface.text.source.projection.ProjectionSupport;
import org.eclipse.jface.text.source.projection.ProjectionViewer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.texteditor.AbstractDecoratedTextEditor;
import org.eclipse.ui.texteditor.ITextEditorActionDefinitionIds;
import org.eclipse.ui.texteditor.TextOperationAction;
import org.eclipse.ui.views.contentoutline.IContentOutlinePage;

public class WikiEditor extends AbstractDecoratedTextEditor {

  private WikiOutlinePage fOutlinePage;

  private WikipediaSection fSection;

  private ProjectionSupport fProjectionSupport;

  private WikiOccurrencesUpdater fOccurrencesUpdater;

  public WikiEditor() {
    setSourceViewerConfiguration(new WikiSourceViewerConfiguration(this, getSharedColors()));
  }

  public WikipediaSection getSection() {
    return fSection;
  }

  public void setSection(WikipediaSection section) {
    fSection = section;
    if (fOutlinePage != null)
      fOutlinePage.setWiki(section);

    if (fOccurrencesUpdater != null)
      fOccurrencesUpdater.update(getSourceViewer());
  }

  /*
   * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
   */
  public Object getAdapter(Class required) {
//    if (IPropertySource.class.equals(required)) {
//      return new WPPropertySource(this);
//    }
    if (IContentOutlinePage.class.equals(required)) {
      if (fOutlinePage == null)
        fOutlinePage = new WikiOutlinePage(this);
      return fOutlinePage;
    }
    if (fProjectionSupport != null) {
      Object adapter = fProjectionSupport.getAdapter(getSourceViewer(), required);
      if (adapter != null)
        return adapter;
    }
    return super.getAdapter(required);
  }

  public void outlinePageClosed() {
    fOutlinePage = null;
  }

  /*
   * @see org.eclipse.ui.texteditor.AbstractTextEditor#createActions()
   */
  protected void createActions() {
    super.createActions();

    IAction action = new TextOperationAction(WikiEditorPlugin.getDefault().getResourceBundle(), "ContentAssistProposal.", this,
        ISourceViewer.CONTENTASSIST_PROPOSALS);
    action.setActionDefinitionId(ITextEditorActionDefinitionIds.CONTENT_ASSIST_PROPOSALS);
    setAction("ContentAssist.", action);
    markAsStateDependentAction("ContentAssist.", true);
  }

  /*
   * @see org.eclipse.ui.texteditor.AbstractDecoratedTextEditor#createPartControl(org.eclipse.swt.widgets.Composite)
   */
  public void createPartControl(Composite parent) {
    super.createPartControl(parent);

    ProjectionViewer projectionViewer = (ProjectionViewer) getSourceViewer();
    fProjectionSupport = new ProjectionSupport(projectionViewer, getAnnotationAccess(), getSharedColors());
    fProjectionSupport.install();
    projectionViewer.doOperation(ProjectionViewer.TOGGLE);

    fOccurrencesUpdater = new WikiOccurrencesUpdater(this);
    
    setWordWrap();
  }

  private void setWordWrap() {
    if (getSourceViewer() != null) {
      getSourceViewer().getTextWidget().setWordWrap(
          WikiEditorPlugin.getDefault().getPreferenceStore().getBoolean(WikiEditorPlugin.EDITOR_WRAP_WORDS));
    }
  }
  /*
   * @see org.eclipse.ui.texteditor.AbstractDecoratedTextEditor#createSourceViewer(org.eclipse.swt.widgets.Composite,
   *      org.eclipse.jface.text.source.IVerticalRuler, int)
   */
  protected ISourceViewer createSourceViewer(Composite parent, IVerticalRuler ruler, int styles) {
    fAnnotationAccess = createAnnotationAccess();
    fOverviewRuler = createOverviewRuler(getSharedColors());

    ISourceViewer viewer = new ProjectionViewer(parent, ruler, fOverviewRuler, true, styles);
    // ensure decoration support has been created and configured:
    getSourceViewerDecorationSupport(viewer);

    return viewer;
  }

  /*
   * @see org.eclipse.ui.IWorkbenchPart#dispose()
   */
  public void dispose() {
    fOccurrencesUpdater.dispose();
    super.dispose();
  }

  public IDocument getDocument() {
    IDocument doc = getDocumentProvider().getDocument(getEditorInput());
    return doc;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.eclipse.ui.texteditor.AbstractTextEditor#editorSaved()
   */
  protected void editorSaved() {
    super.editorSaved();
    BrowserUtil.refreshBrowserPreview(this);
  }
  
  
}