| /* |
| * 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.openapi.diff.actions; |
| |
| import com.intellij.ide.highlighter.ArchiveFileType; |
| import com.intellij.openapi.actionSystem.*; |
| import com.intellij.openapi.diff.DiffBundle; |
| import com.intellij.openapi.diff.DiffManager; |
| import com.intellij.openapi.diff.DiffRequest; |
| import com.intellij.openapi.diff.SimpleDiffRequest; |
| import com.intellij.openapi.diff.ex.DiffContentFactory; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class CompareFiles extends BaseDiffAction { |
| public static final DataKey<DiffRequest> DIFF_REQUEST = DataKey.create("CompareFiles.DiffRequest"); |
| |
| public void update(AnActionEvent e) { |
| Presentation presentation = e.getPresentation(); |
| boolean canShow = isAvailable(e); |
| if (ActionPlaces.isPopupPlace(e.getPlace())) { |
| presentation.setVisible(canShow); |
| } |
| else { |
| presentation.setVisible(true); |
| presentation.setEnabled(canShow); |
| } |
| } |
| |
| private static boolean isAvailable(AnActionEvent e) { |
| final Project project = e.getData(CommonDataKeys.PROJECT); |
| DiffRequest diffRequest = e.getData(DIFF_REQUEST); |
| if (diffRequest == null) { |
| final VirtualFile[] virtualFiles = e.getData(CommonDataKeys.VIRTUAL_FILE_ARRAY); |
| if (virtualFiles == null || virtualFiles.length != 2) { |
| return false; |
| } |
| diffRequest = getDiffRequest(project, virtualFiles); |
| } |
| if (diffRequest == null) { |
| return false; |
| } |
| return !diffRequest.isSafeToCallFromUpdate() || DiffManager.getInstance().getDiffTool().canShow(diffRequest); |
| } |
| |
| protected DiffRequest getDiffData(DataContext dataContext) { |
| final Project project = CommonDataKeys.PROJECT.getData(dataContext); |
| final DiffRequest diffRequest = DIFF_REQUEST.getData(dataContext); |
| if (diffRequest != null) { |
| return diffRequest; |
| } |
| final VirtualFile[] data = CommonDataKeys.VIRTUAL_FILE_ARRAY.getData(dataContext); |
| if (data == null || data.length != 2) { |
| return null; |
| } |
| return getDiffRequest(project, data); |
| } |
| |
| @Nullable |
| private static DiffRequest getDiffRequest(Project project, VirtualFile[] files) { |
| if (files == null || files.length != 2) return null; |
| if (files[0].isDirectory() || files[1].isDirectory() |
| || files[0].getFileType() instanceof ArchiveFileType |
| || files[1].getFileType() instanceof ArchiveFileType) { |
| return null; |
| } |
| String title = DiffBundle.message("diff.element.qualified.name.vs.element.qualified.name.dialog.title", |
| getVirtualFileContentTitle(files [0]), |
| getVirtualFileContentTitle(files [1])); |
| SimpleDiffRequest diffRequest = DiffContentFactory.compareVirtualFiles(project, files[0], files[1], title); |
| if (diffRequest == null) return null; |
| diffRequest.setContentTitles(getVirtualFileContentTitle(files [0]), |
| getVirtualFileContentTitle(files [1])); |
| return diffRequest; |
| } |
| } |