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/*
* Copyright 2000-2013 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 git4idea.ui.branch;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.fileEditor.FileEditorManager;
import com.intellij.openapi.fileEditor.FileEditorManagerEvent;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.popup.ListPopup;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.wm.StatusBarWidget;
import com.intellij.openapi.wm.impl.status.EditorBasedWidget;
import com.intellij.util.Consumer;
import git4idea.GitUtil;
import git4idea.branch.GitBranchUtil;
import git4idea.config.GitVcsSettings;
import git4idea.repo.GitRepository;
import git4idea.repo.GitRepositoryChangeListener;
import org.jetbrains.annotations.NotNull;
import java.awt.event.MouseEvent;
/**
* Status bar widget which displays the current branch for the file currently open in the editor.
* @author Kirill Likhodedov
*/
public class GitBranchWidget extends EditorBasedWidget implements StatusBarWidget.MultipleTextValuesPresentation,
StatusBarWidget.Multiframe,
GitRepositoryChangeListener {
private final GitVcsSettings mySettings;
private volatile String myText = "";
private volatile String myTooltip = "";
private final String myMaxString;
public GitBranchWidget(Project project) {
super(project);
project.getMessageBus().connect().subscribe(GitRepository.GIT_REPO_CHANGE, this);
mySettings = GitVcsSettings.getInstance(project);
myMaxString = "Git: Rebasing master";
}
@Override
public StatusBarWidget copy() {
return new GitBranchWidget(getProject());
}
@NotNull
@Override
public String ID() {
return GitBranchWidget.class.getName();
}
@Override
public WidgetPresentation getPresentation(@NotNull PlatformType type) {
return this;
}
@Override
public void selectionChanged(@NotNull FileEditorManagerEvent event) {
update();
}
@Override
public void fileOpened(@NotNull FileEditorManager source, @NotNull VirtualFile file) {
update();
}
@Override
public void fileClosed(@NotNull FileEditorManager source, @NotNull VirtualFile file) {
update();
}
@Override
public void repositoryChanged(@NotNull GitRepository repository) {
update();
}
@Override
public ListPopup getPopupStep() {
Project project = getProject();
if (project == null) {
return null;
}
GitRepository repo = GitBranchUtil.getCurrentRepository(project);
if (repo == null) {
return null;
}
update(); // update on click
return GitBranchPopup.getInstance(project, repo).asListPopup();
}
@Override
public String getSelectedValue() {
final String text = myText;
return StringUtil.isEmpty(text) ? "" : "Git: " + text;
}
@NotNull
@Override
@Deprecated
public String getMaxValue() {
return myMaxString;
}
@Override
public String getTooltipText() {
return myTooltip;
}
@Override
// have no effect since the click opens a list popup, and the consumer is not called for the MultipleTextValuesPresentation
public Consumer<MouseEvent> getClickConsumer() {
return new Consumer<MouseEvent>() {
public void consume(MouseEvent mouseEvent) {
update();
}
};
}
private void update() {
ApplicationManager.getApplication().invokeLater(new Runnable() {
@Override
public void run() {
Project project = getProject();
if (project == null || project.isDisposed()) {
emptyTextAndTooltip();
return;
}
GitRepository repo = GitBranchUtil.getCurrentRepository(project);
if (repo == null) { // the file is not under version control => display nothing
emptyTextAndTooltip();
return;
}
int maxLength = myMaxString.length() - 1; // -1, because there are arrows indicating that it is a popup
myText = StringUtil.shortenTextWithEllipsis(GitBranchUtil.getDisplayableBranchText(repo), maxLength, 5);
myTooltip = getDisplayableBranchTooltip(repo);
myStatusBar.updateWidget(ID());
mySettings.setRecentRoot(repo.getRoot().getPath());
}
});
}
private void emptyTextAndTooltip() {
myText = "";
myTooltip = "";
}
@NotNull
private static String getDisplayableBranchTooltip(GitRepository repo) {
String text = GitBranchUtil.getDisplayableBranchText(repo);
if (!GitUtil.justOneGitRepository(repo.getProject())) {
return text + "\n" + "Root: " + repo.getRoot().getName();
}
return text;
}
}
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