Java tutorial
/** * This file Copyright (c) 2005-2008 Aptana, Inc. This program is * dual-licensed under both the Aptana Public License and the GNU General * Public license. You may elect to use one or the other of these licenses. * * This program is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. Redistribution, except as permitted by whichever of * the GPL or APL you select, is prohibited. * * 1. For the GPL license (GPL), you can redistribute and/or modify this * program under the terms of the GNU General Public License, * Version 3, as published by the Free Software Foundation. You should * have received a copy of the GNU General Public License, Version 3 along * with this program; if not, write to the Free Software Foundation, Inc., 51 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Aptana provides a special exception to allow redistribution of this file * with certain other free and open source software ("FOSS") code and certain additional terms * pursuant to Section 7 of the GPL. You may view the exception and these * terms on the web at http://www.aptana.com/legal/gpl/. * * 2. For the Aptana Public License (APL), this program and the * accompanying materials are made available under the terms of the APL * v1.0 which accompanies this distribution, and is available at * http://www.aptana.com/legal/apl/. * * You may view the GPL, Aptana's exception and additional terms, and the * APL in the file titled license.html at the root of the corresponding * plugin containing this source file. * * Any modifications to this file must keep this entire header intact. */ package com.aptana.ide.editors; import java.io.IOException; import java.util.HashMap; import java.util.Hashtable; import java.util.Iterator; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.text.templates.ContextTypeRegistry; import org.eclipse.jface.text.templates.TemplateContextType; import org.eclipse.swt.graphics.Image; import org.eclipse.ui.editors.text.templates.ContributionTemplateStore; import org.eclipse.ui.plugin.AbstractUIPlugin; import org.osgi.framework.BundleContext; import com.aptana.ide.core.IdeLog; import com.aptana.ide.editors.preferences.IPreferenceConstants; import com.aptana.ide.editors.profiles.ProfileManager; import com.aptana.ide.editors.views.actions.ActionsManager; /** * The main plugin class to be used in the desktop. */ public class UnifiedEditorsPlugin extends AbstractUIPlugin { private static final String TEMPLATES = "com.aptana.ide.editors.templates"; //$NON-NLS-1$ private static Hashtable<String, Image> images = new Hashtable<String, Image>(); private static UnifiedEditorsPlugin plugin; private boolean enableThreading = true; ProfileManager profileManager; ActionsManager actionsManager; private HashMap<ContextTypeRegistry, ContributionTemplateStore> fTemplateStoreMap; /** * ID */ public static final String ID = "com.aptana.ide.editors"; //$NON-NLS-1$ /** * BROWSER_ELEMENT */ public static final String BROWSER_ELEMENT = "browser";//$NON-NLS-1$ /** * DECORATOR_ELEMENT */ public static final String DECORATOR_ELEMENT = "decorator";//$NON-NLS-1$ /** * CLASS_ATTR */ public static final String CLASS_ATTR = "class"; //$NON-NLS-1$ /** * OUTLINE_ATTR */ public static final String OUTLINE_ATTR = "outline"; //$NON-NLS-1$ /** * LABEL_NODE */ public static final String LABEL_NODE = "label"; //$NON-NLS-1$ /** * OS_ATTR */ public static final String OS_ATTR = "os"; //$NON-NLS-1$ /** * VALUE_ATTR */ public static final String VALUE_ATTR = "value"; //$NON-NLS-1$ /** * BROWSER_EXTENSION_POINT */ public static final String BROWSER_EXTENSION_POINT = "com.aptana.ide.editors.browser"; //$NON-NLS-1$ /** * COLORIZATION_EXTENSION_POINT */ public static final String COLORIZATION_EXTENSION_POINT = "com.aptana.ide.editors.colorization"; //$NON-NLS-1$ /** * FOLDING_EXTENSION_POINT */ public static final String FOLDING_EXTENSION_POINT = "com.aptana.ide.editors.folding"; //$NON-NLS-1$ /** * CONTENT_ASSISTANT_EXTENSION_POINT */ public static final String CONTENT_ASSISTANT_EXTENSION_POINT = "com.aptana.ide.editors.contentassistant"; //$NON-NLS-1$ /** * Returns the shared instance. * * @return returns default plugin */ public static UnifiedEditorsPlugin getDefault() { return plugin; } /** * getImage * * @param path * @return Image */ public static Image getImage(String path) { if (images.get(path) == null) { ImageDescriptor id = getImageDescriptor(path); if (id == null) { return null; } Image i = id.createImage(); images.put(path, i); return i; } else { return images.get(path); } } /** * Returns an image descriptor for the image file at the given plug-in * relative path. * * @param path * the path * @return the image descriptor */ public static ImageDescriptor getImageDescriptor(String path) { return AbstractUIPlugin.imageDescriptorFromPlugin("com.aptana.ide.editors", path); //$NON-NLS-1$ } /** * The constructor. */ public UnifiedEditorsPlugin() { plugin = this; } /** * getActionsManager * * @return ActionsManager */ public ActionsManager getActionsManager() { if (actionsManager == null) { actionsManager = new ActionsManager(); } return actionsManager; } /** * getProfileManager * * @return ProfileManager */ public ProfileManager getProfileManager() { if (profileManager == null) { profileManager = new ProfileManager(enableThreading); } return profileManager; } /** * @return Returns true if threading is enabled (true by default). */ public boolean isThreadingEnabled() { return enableThreading; } /** * @param enableThreading * Turns threading on or off. */ public void setEnableThreading(boolean enableThreading) { this.enableThreading = enableThreading; } /** * This method is called upon plug-in activation * * @param context * @throws Exception */ public void start(BundleContext context) throws Exception { super.start(context); } /** * This method is called when the plug-in is stopped * * @param context * @throws Exception */ public void stop(BundleContext context) throws Exception { super.stop(context); plugin = null; } /** * @return the flag indicating if parsing should be done in two-phases or * one. A fast scan is done on the UI and the full parse is done on * a delay resulting in a faster perceived response time during * editing. */ public boolean useFastScan() { boolean result = true; try { IPreferenceStore prefStore = this.getPreferenceStore(); result = prefStore.getBoolean(IPreferenceConstants.PARSER_OFF_UI); } catch (Exception e) { // this seems to occur during unit tests only } return result; } /** * @param contextTypeRegistry * @return */ public ContributionTemplateStore getTemplateStore(ContextTypeRegistry contextTypeRegistry) { fTemplateStoreMap = new HashMap<ContextTypeRegistry, ContributionTemplateStore>(); ContributionTemplateStore store = fTemplateStoreMap.get(contextTypeRegistry); if (store == null) { store = new ContributionTemplateStore(contextTypeRegistry, UnifiedEditorsPlugin.getDefault().getPreferenceStore(), getKey(contextTypeRegistry)); try { store.load(); } catch (IOException e) { IdeLog.logError(UnifiedEditorsPlugin.getDefault(), e.getMessage(), e); } fTemplateStoreMap.put(contextTypeRegistry, store); } return store; } /** * getKey * * @param contextTypeRegistry * @return */ protected String getKey(ContextTypeRegistry contextTypeRegistry) { Iterator<?> i = contextTypeRegistry.contextTypes(); StringBuilder builder = new StringBuilder(); builder.append(TEMPLATES).append("{"); // NOTE: this code assumes the first context is the top-level context if (i.hasNext()) { TemplateContextType contextType = (TemplateContextType) i.next(); builder.append(contextType.getName()); } builder.append("}"); return builder.toString(); } }