| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.intellij.ide.impl.dataRules; |
| |
| import com.intellij.ide.DataManager; |
| import com.intellij.ide.impl.DataManagerImpl; |
| import com.intellij.openapi.actionSystem.CommonDataKeys; |
| import com.intellij.openapi.actionSystem.DataProvider; |
| import com.intellij.openapi.actionSystem.LangDataKeys; |
| import com.intellij.openapi.actionSystem.PlatformDataKeys; |
| import com.intellij.openapi.module.Module; |
| import com.intellij.openapi.module.ModuleUtilCore; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| |
| /** |
| * @author Eugene Zhuravlev |
| * Date: Feb 10, 2004 |
| */ |
| public class ModuleRule implements GetDataRule { |
| @Override |
| public Object getData(DataProvider dataProvider) { |
| Object moduleContext = LangDataKeys.MODULE_CONTEXT.getData(dataProvider); |
| if (moduleContext != null) { |
| return moduleContext; |
| } |
| Project project = CommonDataKeys.PROJECT.getData(dataProvider); |
| if (project == null) { |
| PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataProvider); |
| if (element == null) { |
| PsiElement[] psiElements = LangDataKeys.PSI_ELEMENT_ARRAY.getData(dataProvider); |
| if (psiElements != null && psiElements.length > 0) { |
| element = psiElements[0]; |
| } |
| } |
| if (element == null || !element.isValid()) return null; |
| project = element.getProject(); |
| } |
| |
| VirtualFile[] files = CommonDataKeys.VIRTUAL_FILE_ARRAY.getData(dataProvider); |
| if (files == null) { |
| GetDataRule dataRule = ((DataManagerImpl)DataManager.getInstance()).getDataRule(CommonDataKeys.VIRTUAL_FILE_ARRAY.getName()); |
| if (dataRule != null) { |
| files = (VirtualFile[])dataRule.getData(dataProvider); |
| } |
| } |
| |
| if (files == null) { |
| return null; |
| } |
| |
| Module singleModule = null; |
| for (VirtualFile file : files) { |
| Module module = ModuleUtilCore.findModuleForFile(file, project); |
| if (module == null) { |
| return null; |
| } |
| if (singleModule == null) { |
| singleModule = module; |
| } |
| else if (module != singleModule) { |
| return null; |
| } |
| } |
| |
| return singleModule; |
| } |
| } |