/*******************************************************************************
* Copyright (c) 2001, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
* Angelo Zerr <angelo.zerr@gmail.com> - copied from org.eclipse.wst.xml.ui.internal.contentoutline.JFaceNodeAdapterFactory
* modified in order to process JSON Objects.
*******************************************************************************/
package org.eclipse.wst.json.ui.internal.contentoutline;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.ColorRegistry;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.StyledString.Styler;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.TextStyle;
import org.eclipse.wst.json.core.regions.JSONRegionContexts;
import org.eclipse.wst.json.ui.internal.ColorTypesHelper;
import org.eclipse.wst.json.ui.internal.JSONUIPlugin;
import org.eclipse.wst.json.ui.internal.style.IStyleConstantsJSON;
import org.eclipse.wst.sse.core.internal.provisional.AbstractAdapterFactory;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapterFactory;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
import org.eclipse.wst.sse.ui.internal.contentoutline.IJFaceNodeAdapter;
import org.eclipse.wst.sse.ui.internal.contentoutline.IJFaceNodeAdapterFactory;
import org.eclipse.wst.sse.ui.internal.preferences.ui.ColorHelper;
import org.eclipse.wst.sse.ui.internal.util.EditorUtility;
/**
* An adapter factory to create JFaceNodeAdapters. Use this adapter factory with
* a JFaceAdapterContentProvider to display JSON nodes in a tree.
*/
public class JFaceNodeAdapterFactory extends AbstractAdapterFactory implements
IJFaceNodeAdapterFactory {
private class PropertyChangeListener implements IPropertyChangeListener {
/*
* (non-Javadoc)
*
* @see
* org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org
* .eclipse.jface.util.PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent event) {
// have to do it this way so others can override the method
handlePropertyChange(event);
}
}
private PropertyChangeListener fPreferenceListener = new PropertyChangeListener();
// public class CMDocumentManagerListenerImpl implements
// CMDocumentManagerListener {
// private static final int UPDATE_DELAY = 200;
//
// public void cacheCleared(CMDocumentCache cache) {
// // nothing to do
// }
//
// public void cacheUpdated(CMDocumentCache cache, final String uri, int
// oldStatus, int newStatus, CMDocument cmDocument) {
// if ((newStatus == CMDocumentCache.STATUS_LOADED) || (newStatus ==
// CMDocumentCache.STATUS_ERROR)) {
// refreshViewers();
// }
// }
//
// public void propertyChanged(CMDocumentManager cmDocumentManager, String
// propertyName) {
// if
// (cmDocumentManager.getPropertyEnabled(CMDocumentManager.PROPERTY_AUTO_LOAD))
// {
// refreshViewers();
// }
// }
//
// private void refreshViewers() {
// Object[] listeners = getListeners().toArray();
// for (int i = 0; i < listeners.length; i++) {
// if (listeners[i] instanceof StructuredViewer) {
// final StructuredViewer viewer = (StructuredViewer) listeners[i];
// Job refresh = new UIJob(XMLUIMessages.refreshoutline_0) {
// public IStatus runInUIThread(IProgressMonitor monitor) {
// Control refreshControl = viewer.getControl();
// if ((refreshControl != null) && !refreshControl.isDisposed()) {
// viewer.refresh(true);
// }
// return Status.OK_STATUS;
// }
// };
// refresh.setSystem(true);
// refresh.setPriority(Job.SHORT);
// refresh.schedule(UPDATE_DELAY);
// }
// else if (listeners[i] instanceof Viewer) {
// final Viewer viewer = (Viewer) listeners[i];
// Job refresh = new UIJob(XMLUIMessages.refreshoutline_0) {
// public IStatus runInUIThread(IProgressMonitor monitor) {
// Control refreshControl = viewer.getControl();
// if ((refreshControl != null) && !refreshControl.isDisposed()) {
// viewer.refresh();
// }
// return Status.OK_STATUS;
// }
// };
// refresh.setSystem(true);
// refresh.setPriority(Job.SHORT);
// refresh.schedule(UPDATE_DELAY);
// }
// }
// }
// }
//
// private CMDocumentManager cmDocumentManager;
// private CMDocumentManagerListenerImpl fCMDocumentManagerListener = null;
/**
* This keeps track of all the listeners.
*/
private Set fListeners = new HashSet();
protected INodeAdapter singletonAdapter;
private Map<String, Styler> stylers;
public JFaceNodeAdapterFactory() {
this(IJFaceNodeAdapter.class, true);
}
public JFaceNodeAdapterFactory(Object adapterKey, boolean registerAdapters) {
super(adapterKey, registerAdapters);
}
public synchronized void addListener(Object listener) {
fListeners.add(listener);
}
public INodeAdapterFactory copy() {
return new JFaceNodeAdapterFactory(getAdapterKey(),
isShouldRegisterAdapter());
}
/**
* Create a new JFace adapter for the JSON node passed in
*/
@Override
protected INodeAdapter createAdapter(INodeNotifier node) {
if (singletonAdapter == null) {
// create the JFaceNodeAdapter
singletonAdapter = new JFaceNodeAdapter(this);
initAdapter(singletonAdapter, node);
}
return singletonAdapter;
}
/**
* returns "copy" so no one can modify our list. It is a shallow copy.
*/
public synchronized Collection getListeners() {
return new ArrayList(fListeners);
}
protected void initAdapter(INodeAdapter adapter, INodeNotifier node) {
// Assert.isTrue(cmDocumentManager == null);
// Assert.isTrue(fCMDocumentManagerListener == null);
//
// // register for CMDocumentManager events
// ModelQueryAdapter mqadapter = (ModelQueryAdapter)
// node.getAdapterFor(ModelQueryAdapter.class);
// if (mqadapter != null) {
// ModelQuery mquery = mqadapter.getModelQuery();
// if ((mquery != null) && (mquery.getCMDocumentManager() != null)) {
// cmDocumentManager = mquery.getCMDocumentManager();
// fCMDocumentManagerListener = new CMDocumentManagerListenerImpl();
// cmDocumentManager.addListener(fCMDocumentManagerListener);
// }
// }
}
public void release() {
// deregister from CMDocumentManager events
// if ((cmDocumentManager != null) && (fCMDocumentManagerListener !=
// null)) {
// cmDocumentManager.removeListener(fCMDocumentManagerListener);
// }
unRegisterPreferenceManager();
fListeners.clear();
if (singletonAdapter != null
&& singletonAdapter instanceof JFaceNodeAdapter) {
RefreshStructureJob refreshJob = ((JFaceNodeAdapter) singletonAdapter).fRefreshJob;
if (refreshJob != null) {
refreshJob.cancel();
}
}
}
public synchronized void removeListener(Object listener) {
fListeners.remove(listener);
}
private void handlePropertyChange(PropertyChangeEvent event) {
ColorTypesHelper.getNewStyle(event);
}
private void registerPreferenceManager() {
IPreferenceStore pref = getColorPreferences();
if (pref != null) {
pref.addPropertyChangeListener(fPreferenceListener);
}
}
private void unRegisterPreferenceManager() {
IPreferenceStore pref = getColorPreferences();
if (pref != null) {
pref.removePropertyChangeListener(fPreferenceListener);
}
}
private void addStyler(String regionType) {
String colorKey = ColorTypesHelper.getColor(regionType);
if (getColorPreferences() != null) {
String prefString = getColorPreferences().getString(colorKey);
String[] stylePrefs = ColorHelper
.unpackStylePreferences(prefString);
if (stylePrefs != null) {
RGB foreground = ColorHelper.toRGB(stylePrefs[0]);
RGB background = ColorHelper.toRGB(stylePrefs[1]);
Styler styler = new RGBStyler(foreground, background);
getStylers().put(regionType, styler);
}
}
}
protected Map<String, Styler> getStylers() {
if (stylers == null) {
stylers = new HashMap<String, Styler>();
}
return stylers;
}
public Styler getStyler(String type) {
if (stylers == null) {
addStyler(JSONRegionContexts.JSON_VALUE_BOOLEAN);
addStyler(JSONRegionContexts.JSON_VALUE_NULL);
addStyler(JSONRegionContexts.JSON_VALUE_NUMBER);
addStyler(JSONRegionContexts.JSON_VALUE_STRING);
}
return stylers.get(type);
}
protected IPreferenceStore getColorPreferences() {
return JSONUIPlugin.getDefault().getPreferenceStore();
}
private static class RGBStyler extends StyledString.Styler {
private final RGB fForegroundColorName;
private final RGB fBackgroundColorName;
public RGBStyler(RGB foregroundColorName, RGB backgroundColorName) {
this.fForegroundColorName = foregroundColorName;
this.fBackgroundColorName = backgroundColorName;
}
public void applyStyles(TextStyle textStyle) {
if (this.fForegroundColorName != null) {
textStyle.foreground = EditorUtility
.getColor(fForegroundColorName);
}
if (this.fBackgroundColorName != null)
textStyle.background = EditorUtility
.getColor(fBackgroundColorName);
}
}
}