| /* |
| * 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.vcs.actions; |
| |
| import com.intellij.openapi.actionSystem.AnActionEvent; |
| import com.intellij.openapi.actionSystem.Presentation; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vcs.AbstractVcs; |
| import com.intellij.openapi.vcs.FilePathImpl; |
| import com.intellij.openapi.vcs.ProjectLevelVcsManager; |
| import com.intellij.openapi.vcs.changes.ChangeListManager; |
| import com.intellij.openapi.vcs.diff.DiffProvider; |
| import com.intellij.openapi.vcs.impl.BackgroundableActionEnabledHandler; |
| import com.intellij.openapi.vcs.impl.ProjectLevelVcsManagerImpl; |
| import com.intellij.openapi.vcs.impl.VcsBackgroundableActions; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import org.jetbrains.annotations.Nullable; |
| |
| public abstract class AbstractShowDiffAction extends AbstractVcsAction{ |
| |
| protected void update(VcsContext vcsContext, Presentation presentation) { |
| updateDiffAction(presentation, vcsContext, getKey()); |
| } |
| |
| protected static void updateDiffAction(final Presentation presentation, final VcsContext vcsContext, |
| final VcsBackgroundableActions actionKey) { |
| presentation.setEnabled(isEnabled(vcsContext, actionKey) != null); |
| presentation.setVisible(isVisible(vcsContext)); |
| } |
| |
| protected boolean forceSyncUpdate(final AnActionEvent e) { |
| return true; |
| } |
| |
| protected abstract VcsBackgroundableActions getKey(); |
| |
| protected static boolean isVisible(final VcsContext vcsContext) { |
| final Project project = vcsContext.getProject(); |
| if (project == null) return false; |
| final AbstractVcs[] vcss = ProjectLevelVcsManager.getInstance(project).getAllActiveVcss(); |
| for (AbstractVcs vcs : vcss) { |
| if (vcs.getDiffProvider() != null) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Nullable |
| protected static AbstractVcs isEnabled(final VcsContext vcsContext, @Nullable final VcsBackgroundableActions actionKey) { |
| if (!(isVisible(vcsContext))) return null; |
| |
| final Project project = vcsContext.getProject(); |
| if (project == null) return null; |
| final ProjectLevelVcsManager vcsManager = ProjectLevelVcsManager.getInstance(project); |
| |
| final VirtualFile[] selectedFilePaths = vcsContext.getSelectedFiles(); |
| if (selectedFilePaths == null || selectedFilePaths.length != 1) return null; |
| |
| final VirtualFile selectedFile = selectedFilePaths[0]; |
| if (selectedFile.isDirectory()) return null; |
| |
| if (actionKey != null) { |
| final BackgroundableActionEnabledHandler handler = ((ProjectLevelVcsManagerImpl)vcsManager).getBackgroundableActionHandler(actionKey); |
| if (handler.isInProgress(VcsBackgroundableActions.keyFrom(selectedFile))) return null; |
| } |
| |
| final AbstractVcs vcs = vcsManager.getVcsFor(selectedFile); |
| if (vcs == null) return null; |
| |
| final DiffProvider diffProvider = vcs.getDiffProvider(); |
| |
| if (diffProvider == null) return null; |
| |
| if (AbstractVcs.fileInVcsByFileStatus(project, new FilePathImpl(selectedFile))) { |
| return vcs; |
| } |
| return null; |
| } |
| |
| |
| protected void actionPerformed(VcsContext vcsContext) { |
| final Project project = vcsContext.getProject(); |
| if (project == null) return; |
| if (ChangeListManager.getInstance(project).isFreezedWithNotification("Can not " + vcsContext.getActionName() + " now")) return; |
| final VirtualFile selectedFile = vcsContext.getSelectedFiles()[0]; |
| |
| final ProjectLevelVcsManager vcsManager = ProjectLevelVcsManager.getInstance(project); |
| final AbstractVcs vcs = vcsManager.getVcsFor(selectedFile); |
| final DiffProvider diffProvider = vcs.getDiffProvider(); |
| |
| final DiffActionExecutor actionExecutor = getExecutor(diffProvider, selectedFile, project); |
| actionExecutor.showDiff(); |
| } |
| |
| protected DiffActionExecutor getExecutor(final DiffProvider diffProvider, final VirtualFile selectedFile, final Project project) { |
| return new DiffActionExecutor.CompareToCurrentExecutor(diffProvider, selectedFile, project, getKey()); |
| } |
| } |