| /******************************************************************************* |
| * Copyright (c) 2005, 2015 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.preferences; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.preferences.IPreferenceFilter; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.ui.IPluginContribution; |
| import org.eclipse.ui.internal.registry.IWorkbenchRegistryConstants; |
| import org.eclipse.ui.internal.registry.PreferenceTransferRegistryReader; |
| import org.eclipse.ui.internal.registry.RegistryReader; |
| import org.eclipse.ui.model.WorkbenchAdapter; |
| import org.eclipse.ui.plugin.AbstractUIPlugin; |
| |
| /** |
| * Instances represent registered preference transfers. |
| * |
| * @since 3.1 |
| */ |
| public class PreferenceTransferElement extends WorkbenchAdapter implements |
| IPluginContribution { |
| private String id; |
| |
| private ImageDescriptor imageDescriptor; |
| |
| private IConfigurationElement configurationElement; |
| |
| private IPreferenceFilter filter; |
| |
| /** |
| * Create a new instance of this class |
| * |
| * @param configurationElement |
| * |
| */ |
| public PreferenceTransferElement(IConfigurationElement configurationElement) { |
| this.configurationElement = configurationElement; |
| id = configurationElement |
| .getAttribute(IWorkbenchRegistryConstants.ATT_ID); |
| } |
| |
| /** |
| * @return IConfigurationElement |
| */ |
| public IConfigurationElement getConfigurationElement() { |
| return configurationElement; |
| } |
| |
| /** |
| * Answer the preference filter of this element. |
| * |
| * @return a preference filter |
| * @throws CoreException |
| */ |
| public IPreferenceFilter getFilter() throws CoreException { |
| if (filter == null) { |
| IConfigurationElement[] mappingConfigurations = PreferenceTransferRegistryReader |
| .getMappings(configurationElement); |
| int size = mappingConfigurations.length; |
| Set scopes = new HashSet(size); |
| Map mappingsMap = new HashMap(size); |
| for (int i = 0; i < size; i++) { |
| String scope = PreferenceTransferRegistryReader |
| .getScope(mappingConfigurations[i]); |
| scopes.add(scope); |
| |
| Map mappings; |
| if (!mappingsMap.containsKey(scope)) { |
| mappings = new HashMap(size); |
| mappingsMap.put(scope, mappings); |
| } else { |
| mappings = (Map) mappingsMap.get(scope); |
| if (mappings == null) { |
| continue; |
| } |
| } |
| |
| Map entries = PreferenceTransferRegistryReader |
| .getEntry(mappingConfigurations[i]); |
| if (entries == null) { |
| mappingsMap.put(scope, null); |
| } else { |
| mappings.putAll(entries); |
| } |
| } |
| filter = new PreferenceFilter((String[]) scopes |
| .toArray(new String[scopes.size()]), mappingsMap); |
| } |
| return filter; |
| } |
| |
| /** |
| * Answer the description parameter of this element |
| * |
| * @return java.lang.String |
| */ |
| public String getDescription() { |
| return RegistryReader.getDescription(configurationElement); |
| } |
| |
| /** |
| * Answer the id as specified in the extension. |
| * |
| * @return java.lang.String |
| */ |
| public String getID() { |
| return id; |
| } |
| |
| /** |
| * Returns the name of this preference transfer element. |
| * |
| * @return the name of the element |
| */ |
| public String getName() { |
| return configurationElement |
| .getAttribute(IWorkbenchRegistryConstants.ATT_NAME); |
| } |
| |
| @Override |
| public String getLocalId() { |
| return getID(); |
| } |
| |
| @Override |
| public String getPluginId() { |
| return (configurationElement != null) ? configurationElement |
| .getContributor().getName() : null; |
| } |
| |
| static class PreferenceFilter implements IPreferenceFilter { |
| |
| private String[] scopes; |
| private Map mappings; |
| |
| public PreferenceFilter(String[] scopes, Map mappings) { |
| this.scopes = scopes; |
| this.mappings = mappings; |
| } |
| |
| @Override |
| public String[] getScopes() { |
| return scopes; |
| } |
| |
| @Override |
| public Map getMapping(String scope) { |
| return (Map) mappings.get(scope); |
| } |
| |
| } |
| |
| @Override |
| public String getLabel(Object object) { |
| return getName(); |
| } |
| |
| @Override |
| public ImageDescriptor getImageDescriptor(Object object) { |
| if (imageDescriptor == null) { |
| String iconName = configurationElement |
| .getAttribute(IWorkbenchRegistryConstants.ATT_ICON); |
| if (iconName == null) { |
| return null; |
| } |
| imageDescriptor = AbstractUIPlugin.imageDescriptorFromPlugin( |
| getPluginId(), iconName); |
| } |
| return imageDescriptor; |
| |
| } |
| } |