/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.ide.ext.git.client.compare;
import com.google.common.base.Optional;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.google.web.bindery.event.shared.EventBus;
import org.eclipse.che.commons.annotation.Nullable;
import org.eclipse.che.ide.api.event.FileContentUpdateEvent;
import org.eclipse.che.ide.api.git.GitServiceClient;
import org.eclipse.che.api.git.shared.ShowFileContentResponse;
import org.eclipse.che.ide.api.app.AppContext;
import org.eclipse.che.api.promises.client.Operation;
import org.eclipse.che.api.promises.client.OperationException;
import org.eclipse.che.api.promises.client.PromiseError;
import org.eclipse.che.ide.api.machine.DevMachine;
import org.eclipse.che.ide.api.notification.NotificationManager;
import org.eclipse.che.ide.api.resources.Container;
import org.eclipse.che.ide.api.resources.File;
import org.eclipse.che.ide.api.resources.Project;
import org.eclipse.che.ide.ext.git.client.GitLocalizationConstant;
import org.eclipse.che.ide.ext.git.client.compare.FileStatus.Status;
import org.eclipse.che.ide.api.dialogs.CancelCallback;
import org.eclipse.che.ide.api.dialogs.ConfirmCallback;
import org.eclipse.che.ide.api.dialogs.DialogFactory;
import org.eclipse.che.ide.resource.Path;
import static org.eclipse.che.ide.api.notification.StatusNotification.DisplayMode.NOT_EMERGE_MODE;
import static org.eclipse.che.ide.api.notification.StatusNotification.Status.FAIL;
import static org.eclipse.che.ide.ext.git.client.compare.FileStatus.Status.ADDED;
import static org.eclipse.che.ide.ext.git.client.compare.FileStatus.Status.DELETED;
/**
* Presenter for comparing current files with files from specified revision or branch.
*
* @author Igor Vinokur
* @author Vlad Zhukovskyi
*/
@Singleton
public class ComparePresenter implements CompareView.ActionDelegate {
private final AppContext appContext;
private final EventBus eventBus;
private final DialogFactory dialogFactory;
private final CompareView view;
private final GitServiceClient service;
private final GitLocalizationConstant locale;
private final NotificationManager notificationManager;
private File comparedFile;
private String revision;
private String localContent;
private boolean compareWithLatest;
@Inject
public ComparePresenter(AppContext appContext,
EventBus eventBus,
DialogFactory dialogFactory,
CompareView view,
GitServiceClient service,
GitLocalizationConstant locale,
NotificationManager notificationManager) {
this.appContext = appContext;
this.eventBus = eventBus;
this.dialogFactory = dialogFactory;
this.view = view;
this.service = service;
this.locale = locale;
this.notificationManager = notificationManager;
this.view.setDelegate(this);
}
/**
* Show compare window.
*
* @param file
* file name with its full path
* @param status
* status of the file
* @param revision
* hash of revision or branch
*/
public void showCompareWithLatest(final File file, final Status status, final String revision) {
this.comparedFile = file;
this.revision = revision;
this.compareWithLatest = true;
if (status.equals(ADDED)) {
showCompare("");
return;
}
final Optional<Project> project = file.getRelatedProject();
if (!project.isPresent()) {
return;
}
final Path relPath = file.getLocation().removeFirstSegments(project.get().getLocation().segmentCount());
if (status.equals(DELETED)) {
service.showFileContent(appContext.getDevMachine(), project.get().getLocation(), relPath, revision)
.then(new Operation<ShowFileContentResponse>() {
@Override
public void apply(ShowFileContentResponse content) throws OperationException {
view.setTitle(file.getLocation().toString());
view.setColumnTitles(locale.compareYourVersionTitle(), revision + locale.compareReadOnlyTitle());
view.show(content.getContent(), "", file.getLocation().toString(), false);
}
})
.catchError(new Operation<PromiseError>() {
@Override
public void apply(PromiseError error) throws OperationException {
notificationManager.notify(error.getMessage(), FAIL, NOT_EMERGE_MODE);
}
});
} else {
service.showFileContent(appContext.getDevMachine(), project.get().getLocation(), relPath, revision)
.then(new Operation<ShowFileContentResponse>() {
@Override
public void apply(ShowFileContentResponse content) throws OperationException {
showCompare(content.getContent());
}
})
.catchError(new Operation<PromiseError>() {
@Override
public void apply(PromiseError error) throws OperationException {
notificationManager.notify(error.getMessage(), FAIL, NOT_EMERGE_MODE);
}
});
}
}
/**
*
* @param file
* path of the file
* @param status
* status of the file
* @param revisionA
* hash of the first revision or branch.
* If it is set to {@code null}, compare with empty repository state will be performed
* @param revisionB
* hash of the second revision or branch.
* If it is set to {@code null}, compare with latest repository state will be performed
*/
public void showCompareBetweenRevisions(final Path file,
final Status status,
@Nullable final String revisionA,
@Nullable final String revisionB) {
this.compareWithLatest = false;
final DevMachine devMachine = appContext.getDevMachine();
final Path projectLocation = appContext.getRootProject().getLocation();
view.setTitle(file.toString());
if (status == Status.ADDED) {
service.showFileContent(devMachine, projectLocation, file, revisionB)
.then(new Operation<ShowFileContentResponse>() {
@Override
public void apply(ShowFileContentResponse response) throws OperationException {
view.setColumnTitles(revisionB + locale.compareReadOnlyTitle(),
revisionA == null ? "" : revisionA + locale.compareReadOnlyTitle());
view.show("", response.getContent(), file.toString(), true);
}
})
.catchError(new Operation<PromiseError>() {
@Override
public void apply(PromiseError error) throws OperationException {
notificationManager.notify(error.getMessage(), FAIL, NOT_EMERGE_MODE);
}
});
} else if (status == Status.DELETED) {
service.showFileContent(devMachine, projectLocation, file, revisionA)
.then(new Operation<ShowFileContentResponse>() {
@Override
public void apply(ShowFileContentResponse response) throws OperationException {
view.setColumnTitles(revisionB + locale.compareReadOnlyTitle(), revisionA + locale.compareReadOnlyTitle());
view.show(response.getContent(), "", file.toString(), true);
}
})
.catchError(new Operation<PromiseError>() {
@Override
public void apply(PromiseError error) throws OperationException {
notificationManager.notify(error.getMessage(), FAIL, NOT_EMERGE_MODE);
}
});
} else {
service.showFileContent(devMachine, projectLocation, file, revisionA)
.then(new Operation<ShowFileContentResponse>() {
@Override
public void apply(final ShowFileContentResponse contentAResponse) throws OperationException {
service.showFileContent(devMachine, projectLocation, file, revisionB)
.then(new Operation<ShowFileContentResponse>() {
@Override
public void apply(ShowFileContentResponse contentBResponse) throws OperationException {
view.setColumnTitles(revisionB + locale.compareReadOnlyTitle(),
revisionA + locale.compareReadOnlyTitle());
view.show(contentAResponse.getContent(), contentBResponse.getContent(), file.toString(), true);
}
})
.catchError(new Operation<PromiseError>() {
@Override
public void apply(PromiseError error) throws OperationException {
notificationManager.notify(error.getMessage(), FAIL, NOT_EMERGE_MODE);
}
});
}
});
}
}
@Override
public void onClose(final String newContent) {
if (!compareWithLatest || this.localContent == null || newContent.equals(localContent)) {
view.hide();
return;
}
ConfirmCallback confirmCallback = new ConfirmCallback() {
@Override
public void accepted() {
comparedFile.updateContent(newContent).then(new Operation<Void>() {
@Override
public void apply(Void ignored) throws OperationException {
final Container parent = comparedFile.getParent();
if (parent != null) {
parent.synchronize();
}
eventBus.fireEvent(new FileContentUpdateEvent(comparedFile.getLocation().toString()));
view.hide();
}
});
}
};
CancelCallback cancelCallback = new CancelCallback() {
@Override
public void cancelled() {
view.hide();
}
};
dialogFactory.createConfirmDialog(locale.compareSaveTitle(), locale.compareSaveQuestion(), locale.buttonYes(), locale.buttonNo(),
confirmCallback, cancelCallback).show();
}
private void showCompare(final String remoteContent) {
comparedFile.getContent().then(new Operation<String>() {
@Override
public void apply(String local) throws OperationException {
localContent = local;
final String path = comparedFile.getLocation().removeFirstSegments(1).toString();
view.setTitle(path);
view.setColumnTitles(locale.compareYourVersionTitle(), revision + locale.compareReadOnlyTitle());
view.show(remoteContent, localContent, path, false);
}
});
}
}