| /*=============================================================================# |
| # Copyright (c) 2013, 2021 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.ltk.ui.sourceediting.actions; |
| |
| import java.util.IdentityHashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExecutableExtension; |
| import org.eclipse.jface.action.IContributionItem; |
| import org.eclipse.jface.text.source.SourceViewer; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.menus.IWorkbenchContribution; |
| import org.eclipse.ui.services.IServiceLocator; |
| |
| import org.eclipse.statet.ecommons.text.core.sections.DocContentSections; |
| import org.eclipse.statet.ecommons.ui.actions.ListContributionItem; |
| import org.eclipse.statet.ecommons.ui.util.UIAccess; |
| |
| import org.eclipse.statet.ltk.ui.sourceediting.SourceEditor; |
| |
| |
| /** |
| * Contribution item for element search (menu) supporting separate implementations for each |
| * document content section type. |
| * |
| * Implement {@link #createItem(String)} for lazy initialization of the contribution items of the |
| * section types. |
| * |
| * @see DocContentSections |
| */ |
| public class MultiContentSectionElementSearchContributionItem extends ListContributionItem |
| implements IWorkbenchContribution, IExecutableExtension { |
| |
| |
| private static final Object NULL= new Object(); |
| |
| |
| private final DocContentSections sections; |
| |
| private final Map<String, Object> items= new IdentityHashMap<>(8); |
| |
| private String commandId; |
| |
| private IServiceLocator serviceLocator; |
| |
| |
| public MultiContentSectionElementSearchContributionItem(final DocContentSections sections) { |
| super(); |
| if (sections == null) { |
| throw new NullPointerException("sections"); //$NON-NLS-1$ |
| } |
| this.sections= sections; |
| } |
| |
| public MultiContentSectionElementSearchContributionItem(final DocContentSections sections, |
| final String sectionType1, final ListContributionItem item1) { |
| this(sections, sectionType1, item1, null, null); |
| } |
| |
| public MultiContentSectionElementSearchContributionItem(final DocContentSections sections, |
| final String sectionType1, final ListContributionItem item1, |
| final String sectionType2, final ListContributionItem item2) { |
| this(sections); |
| |
| if (sectionType1 != null) { |
| registerItem(sectionType1, item1); |
| } |
| if (sectionType2 != null) { |
| registerItem(sectionType2, item2); |
| } |
| } |
| |
| |
| @Override |
| public void setInitializationData(final IConfigurationElement config, |
| final String propertyName, final Object data) throws CoreException { |
| if (this.commandId != null) { |
| return; |
| } |
| final String s= config.getAttribute("id"); //$NON-NLS-1$ |
| if (s != null) { |
| this.commandId= s.intern(); |
| } |
| } |
| |
| public String getCommandId() { |
| return this.commandId; |
| } |
| |
| @Override |
| public void initialize(final IServiceLocator serviceLocator) { |
| this.serviceLocator= serviceLocator; |
| |
| for (final Object item : this.items.values()) { |
| if (item != NULL && item instanceof IWorkbenchContribution) { |
| ((IWorkbenchContribution) item).initialize(serviceLocator); |
| } |
| } |
| } |
| |
| |
| protected final DocContentSections getSections() { |
| return this.sections; |
| } |
| |
| |
| @Override |
| public void dispose() { |
| super.dispose(); |
| |
| for (final Object item : this.items.values()) { |
| if (item != NULL) { |
| ((ListContributionItem) item).dispose(); |
| } |
| } |
| this.items.clear(); |
| } |
| |
| |
| protected void registerItem(final String sectionType, final ListContributionItem item) { |
| if (sectionType == null) { |
| throw new NullPointerException("sectionType"); //$NON-NLS-1$ |
| } |
| this.items.put(sectionType, (item != null) ? item : NULL); |
| } |
| |
| protected final ListContributionItem getItem(final String sectionType) { |
| if (sectionType == DocContentSections.ERROR) { |
| return null; |
| } |
| Object item= this.items.get(sectionType); |
| if (item == null) { |
| item= NULL; |
| try { |
| final ListContributionItem newItem= createItem(sectionType); |
| if (newItem != null) { |
| if (newItem instanceof IWorkbenchContribution) { |
| ((IWorkbenchContribution) newItem).initialize(this.serviceLocator); |
| } |
| item= newItem; |
| } |
| } |
| finally { |
| this.items.put(sectionType, item); |
| } |
| } |
| return (item != NULL) ? (ListContributionItem) item : null; |
| } |
| |
| protected ListContributionItem createItem(final String sectionType) { |
| return null; |
| } |
| |
| |
| @Override |
| public void createContributionItems(final List<IContributionItem> items) { |
| final IWorkbenchPart part= UIAccess.getActiveWorkbenchPart(true); |
| if (part instanceof SourceEditor) { |
| final SourceEditor editor= (SourceEditor) part; |
| final SourceViewer viewer= editor.getViewer(); |
| final ListContributionItem item= getItem( |
| this.sections.getType(viewer.getDocument(), viewer.getSelectedRange().x) ); |
| if (item != null) { |
| createContributionItems(items, item); |
| } |
| } |
| } |
| |
| } |