| /* |
| * Copyright (c) 2012 Google Inc. |
| * |
| * 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 |
| */ |
| package com.google.eclipse.protobuf.cdt.actions; |
| |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.resource.ResourceSet; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.xtext.resource.IResourceDescription; |
| import org.eclipse.xtext.ui.resource.IResourceSetProvider; |
| |
| import com.google.eclipse.protobuf.cdt.mapping.CppToProtobufMapping; |
| import com.google.eclipse.protobuf.cdt.matching.ProtobufElementMatchFinder; |
| import com.google.eclipse.protobuf.cdt.util.Editors; |
| import com.google.eclipse.protobuf.resource.IndexLookup; |
| import com.google.inject.Inject; |
| |
| /** |
| * @author alruiz@google.com (Alex Ruiz) |
| */ |
| class ProtobufElementUriFinder { |
| @Inject private Editors editors; |
| @Inject private IResourceSetProvider resourceSetProvider; |
| @Inject private ProtobufElementMatchFinder matcher; |
| @Inject private IndexLookup indexLookup; |
| @Inject private AstBasedCppToProtobufMapper mapper; |
| @Inject private ProtoFilePathFinder pathFinder; |
| |
| URI findProtobufElementLocationFromSelectionOf(IEditorPart editor) { |
| IPath protoFilePath = pathFinder.findProtoFilePathIn(editor); |
| if (protoFilePath != null) { |
| CppToProtobufMapping mapping = mapper.createMappingFromSelectionOf(editor); |
| if (mapping != null) { |
| return protobufElementLocation(protoFilePath, editor, mapping); |
| } |
| } |
| return null; |
| } |
| |
| private URI protobufElementLocation(IPath protoFilePath, IEditorPart editor, CppToProtobufMapping mapping) { |
| Resource resource = protoFileResource(protoFilePath, editor); |
| if (resource == null) { |
| return null; |
| } |
| List<URI> locations = matcher.matchingProtobufElementLocations(resource, mapping); |
| return (!locations.isEmpty()) ? locations.get(0) : null; |
| } |
| |
| private Resource protoFileResource(IPath protoFilePath, IEditorPart editor) { |
| IFile cppHeaderFile = editors.fileDisplayedIn(editor); |
| ResourceSet resourceSet = resourceSetProvider.get(cppHeaderFile.getProject()); |
| if (resourceSet != null) { |
| IResourceDescription description = indexLookup.resourceIn(protoFilePath); |
| return (description != null) ? resourceSet.getResource(description.getURI(), true) : null; |
| } |
| return null; |
| } |
| } |