| /* |
| * 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.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.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.util.PsiUtilBase; |
| |
| public class VirtualFileRule implements GetDataRule { |
| @Override |
| public Object getData(final DataProvider dataProvider) { |
| // Try to detect multiselection. |
| PsiElement[] psiElements = LangDataKeys.PSI_ELEMENT_ARRAY.getData(dataProvider); |
| if (psiElements != null) { |
| for (PsiElement elem : psiElements) { |
| VirtualFile virtualFile = PsiUtilBase.getVirtualFile(elem); |
| if (virtualFile != null) return virtualFile; |
| } |
| } |
| |
| VirtualFile[] virtualFiles = CommonDataKeys.VIRTUAL_FILE_ARRAY.getData(dataProvider); |
| if (virtualFiles != null && virtualFiles.length == 1) { |
| return virtualFiles[0]; |
| } |
| |
| PsiFile psiFile = CommonDataKeys.PSI_FILE.getData(dataProvider); |
| if (psiFile != null) { |
| return psiFile.getVirtualFile(); |
| } |
| PsiElement elem = CommonDataKeys.PSI_ELEMENT.getData(dataProvider); |
| if (elem == null) { |
| return null; |
| } |
| return PsiUtilBase.getVirtualFile(elem); |
| } |
| } |