| /******************************************************************************* |
| * Copyright (c) 2000, 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 |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.registry; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionRegistry; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * This class is used to read resource editor registry descriptors from |
| * the platform registry. |
| */ |
| public class EditorRegistryReader extends RegistryReader { |
| |
| private EditorRegistry editorRegistry; |
| |
| /** |
| * Get the editors that are defined in the registry |
| * and add them to the ResourceEditorRegistry |
| * |
| * Warning: |
| * The registry must be passed in because this method is called during the |
| * process of setting up the registry and at this time it has not been |
| * safely setup with the plugin. |
| */ |
| protected void addEditors(EditorRegistry registry) { |
| IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry(); |
| this.editorRegistry = registry; |
| readRegistry(extensionRegistry, PlatformUI.PLUGIN_ID, |
| IWorkbenchRegistryConstants.PL_EDITOR); |
| } |
| |
| /** |
| * Implementation of the abstract method that |
| * processes one configuration element. |
| */ |
| protected boolean readElement(IConfigurationElement element) { |
| if (!element.getName().equals(IWorkbenchRegistryConstants.TAG_EDITOR)) { |
| return false; |
| } |
| |
| String id = element.getAttribute(IWorkbenchRegistryConstants.ATT_ID); |
| if (id == null) { |
| logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_ID); |
| return true; |
| } |
| |
| EditorDescriptor editor = new EditorDescriptor(id, element); |
| |
| List extensionsVector = new ArrayList(); |
| List filenamesVector = new ArrayList(); |
| List contentTypeVector = new ArrayList(); |
| boolean defaultEditor = false; |
| |
| // Get editor name (required field). |
| if (element.getAttribute(IWorkbenchRegistryConstants.ATT_NAME) == null) { |
| logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_NAME); |
| return true; |
| } |
| |
| // Get editor icon (required field for internal editors) |
| if (element.getAttribute(IWorkbenchRegistryConstants.ATT_ICON) == null) { |
| if (getClassValue(element, IWorkbenchRegistryConstants.ATT_CLASS) != null) { |
| logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_ICON); |
| return true; |
| } |
| } |
| |
| // Get target extensions (optional field) |
| String extensionsString = element.getAttribute(IWorkbenchRegistryConstants.ATT_EXTENSIONS); |
| if (extensionsString != null) { |
| StringTokenizer tokenizer = new StringTokenizer(extensionsString, |
| ",");//$NON-NLS-1$ |
| while (tokenizer.hasMoreTokens()) { |
| extensionsVector.add(tokenizer.nextToken().trim()); |
| } |
| } |
| String filenamesString = element.getAttribute(IWorkbenchRegistryConstants.ATT_FILENAMES); |
| if (filenamesString != null) { |
| StringTokenizer tokenizer = new StringTokenizer(filenamesString, |
| ",");//$NON-NLS-1$ |
| while (tokenizer.hasMoreTokens()) { |
| filenamesVector.add(tokenizer.nextToken().trim()); |
| } |
| } |
| |
| IConfigurationElement [] bindings = element.getChildren(IWorkbenchRegistryConstants.TAG_CONTENT_TYPE_BINDING); |
| for (int i = 0; i < bindings.length; i++) { |
| String contentTypeId = bindings[i].getAttribute(IWorkbenchRegistryConstants.ATT_CONTENT_TYPE_ID); |
| if (contentTypeId == null) { |
| continue; |
| } |
| contentTypeVector.add(contentTypeId); |
| } |
| |
| // Is this the default editor? |
| String def = element.getAttribute(IWorkbenchRegistryConstants.ATT_DEFAULT); |
| if (def != null) { |
| defaultEditor = Boolean.valueOf(def).booleanValue(); |
| } |
| |
| // Add the editor to the manager. |
| editorRegistry.addEditorFromPlugin(editor, extensionsVector, |
| filenamesVector, contentTypeVector, defaultEditor); |
| return true; |
| } |
| |
| |
| /** |
| * @param editorRegistry |
| * @param element |
| */ |
| public void readElement(EditorRegistry editorRegistry, |
| IConfigurationElement element) { |
| this.editorRegistry = editorRegistry; |
| readElement(element); |
| } |
| } |