/*******************************************************************************
* Copyright (c) 2010, 2013, 2015 SAP AG and others.
* 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:
* Stefan Lay (SAP AG) - initial implementation
* Mathias Kinzler (SAP AG) - use the abstract super class
* Thomas Wolf <thomas.wolf@paranor.ch> - Bug 477248
*******************************************************************************/
package org.eclipse.egit.ui.internal.dialogs;
import java.io.IOException;
import org.eclipse.egit.core.RepositoryUtil;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.PreferenceBasedDateFormatter;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.window.Window;
import org.eclipse.jgit.api.ResetCommand.ResetType;
import org.eclipse.jgit.lib.AbbreviatedObjectId;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.util.GitDateFormatter;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
/**
* Dialog for selecting a reset target.
*/
public class ResetTargetSelectionDialog extends AbstractBranchSelectionDialog {
private static final String RESET_TYPE_SETTING = "ResetTargetSelectionDialog.resetType"; //$NON-NLS-1$
private static final int SWT_NONE = 0;
private ResetType resetType = ResetType.MIXED;
private Text anySha1;
private String parsedCommitish;
private Label subject;
private Label author;
private Label sha1;
private Label committer;
private final GitDateFormatter gitDateFormatter = PreferenceBasedDateFormatter
.create();
/**
* Construct a dialog to select a branch to reset to
*
* @param parentShell
* @param repo
*/
public ResetTargetSelectionDialog(Shell parentShell, Repository repo) {
super(parentShell, repo, SHOW_LOCAL_BRANCHES | SHOW_REMOTE_BRANCHES
| SHOW_TAGS | SHOW_REFERENCES | EXPAND_LOCAL_BRANCHES_NODE
| SELECT_CURRENT_REF);
super.setHelpAvailable(false);
}
@Override
protected void createCustomArea(Composite parent) {
Composite main = new Composite(parent, SWT.NONE);
main.setLayout(new GridLayout(1, false));
GridDataFactory.fillDefaults().grab(true, false).applyTo(main);
Group g2 = new Group(main, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, false).applyTo(g2);
g2.setLayout(new GridLayout(2, false));
Label label = new Label(g2, SWT.NONE);
label.setText(UIText.ResetTargetSelectionDialog_ExpressionLabel);
anySha1 = new Text(g2, SWT.BORDER);
anySha1.setToolTipText(UIText.ResetTargetSelectionDialog_ExpressionTooltip);
GridDataFactory.fillDefaults().grab(true, false).applyTo(anySha1);
Group g3 = new Group(g2, SWT_NONE);
GridDataFactory.fillDefaults().grab(true, false).span(2, 1).applyTo(g3);
g3.setLayout(new GridLayout(2, false));
new Label(g3, SWT.NONE).setText(UIText.ResetTargetSelectionDialog_CommitLabel);
sha1 = new Label(g3, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, false).applyTo(sha1);
new Label(g3, SWT.NONE).setText(UIText.ResetTargetSelectionDialog_SubjectLabel);
subject = new Label(g3, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, false).applyTo(subject);
new Label(g3, SWT.NONE).setText(UIText.ResetTargetSelectionDialog_AuthorLabel);
author = new Label(g3, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, false).applyTo(author);
new Label(g3, SWT.NONE).setText(UIText.ResetTargetSelectionDialog_CommitterLabel);
committer = new Label(g3, SWT.NONE);
GridDataFactory.fillDefaults().grab(true, false).applyTo(committer);
Group g = new Group(main, SWT.NONE);
g.setText(UIText.ResetTargetSelectionDialog_ResetTypeGroup);
GridDataFactory.fillDefaults().grab(true, false).applyTo(g);
g.setLayout(new GridLayout(1, false));
anySha1.addFocusListener(new FocusListener() {
@Override
public void focusLost(FocusEvent e) {
// Do nothing
}
@Override
public void focusGained(FocusEvent e) {
branchTree.setSelection(null);
}
});
anySha1.addModifyListener(new ModifyListener() {
@Override
public void modifyText(ModifyEvent e) {
String text = anySha1.getText();
if (text.length() == 0) {
parsedCommitish = null;
setMessage(""); //$NON-NLS-1$
return;
}
try {
ObjectId resolved = repo.resolve(text+"^{commit}"); //$NON-NLS-1$
if (resolved == null) {
setMessage(
UIText.ResetTargetSelectionDialog_UnresolvableExpressionError,
IMessageProvider.ERROR);
getButton(OK).setEnabled(false);
parsedCommitish = null;
sha1.setText(""); //$NON-NLS-1$
subject.setText(""); //$NON-NLS-1$
author.setText(""); //$NON-NLS-1$
committer.setText(""); //$NON-NLS-1$
return;
} else {
if (RepositoryUtil.isDetachedHead(repo)) {
setMessage(
UIText.ResetTargetSelectionDialog_DetachedHeadState,
IMessageProvider.INFORMATION);
} else {
setMessage(""); //$NON-NLS-1$
}
parsedCommitish = text;
getButton(OK).setEnabled(true);
try (RevWalk rw = new RevWalk(repo)) {
RevCommit commit = rw.parseCommit(resolved);
sha1.setText(AbbreviatedObjectId
.fromObjectId(commit).name());
subject.setText(commit.getShortMessage());
author.setText(
commit.getAuthorIdent().getName() + " <" //$NON-NLS-1$
+ commit.getAuthorIdent()
.getEmailAddress()
+ "> " //$NON-NLS-1$
+ gitDateFormatter.formatDate(
commit.getAuthorIdent()));
committer.setText(commit.getCommitterIdent()
.getName()
+ " <" //$NON-NLS-1$
+ commit.getCommitterIdent()
.getEmailAddress()
+ "> " + gitDateFormatter.formatDate( //$NON-NLS-1$
commit.getCommitterIdent()));
}
}
} catch (IOException e1) {
setMessage(e1.getMessage(), IMessageProvider.ERROR);
getButton(OK).setEnabled(false);
parsedCommitish = null;
}
}
});
branchTree.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
if (!event.getSelection().isEmpty()) {
String refName = refNameFromDialog();
if (refName != null) {
anySha1.setText(refName);
anySha1.selectAll();
}
}
}
});
IDialogSettings settings = Activator.getDefault().getDialogSettings();
if (settings.get(RESET_TYPE_SETTING) != null) {
resetType = ResetType.valueOf(settings.get(RESET_TYPE_SETTING));
}
createResetButton(g,
UIText.ResetTargetSelectionDialog_ResetTypeSoftButton,
ResetType.SOFT);
createResetButton(g,
UIText.ResetTargetSelectionDialog_ResetTypeMixedButton,
ResetType.MIXED);
createResetButton(g,
UIText.ResetTargetSelectionDialog_ResetTypeHardButton,
ResetType.HARD);
}
private Button createResetButton(Composite parent, String text,
final ResetType type) {
Button button = new Button(parent, SWT.RADIO);
button.setText(text);
button.addListener(SWT.Selection, new Listener() {
@Override
public void handleEvent(Event event) {
if (((Button) event.widget).getSelection())
resetType = type;
}
});
button.setSelection(type == resetType);
return button;
}
@Override
protected void refNameSelected(String refName) {
boolean enabled = refName != null || parsedCommitish != null;
getButton(Window.OK).setEnabled(enabled);
}
@Override
protected void createButtonsForButtonBar(Composite parent) {
super.createButtonsForButtonBar(parent);
getButton(Window.OK).setText(
UIText.ResetTargetSelectionDialog_ResetButton);
}
@Override
protected String getTitle() {
String repoName = Activator.getDefault().getRepositoryUtil()
.getRepositoryName(repo);
return NLS.bind(UIText.ResetTargetSelectionDialog_ResetTitle, repoName);
}
@Override
protected String getWindowTitle() {
return UIText.ResetTargetSelectionDialog_WindowTitle;
}
/**
* @return Type of Reset
*/
public ResetType getResetType() {
return resetType;
}
@Override
protected void okPressed() {
if (resetType == ResetType.HARD) {
if (!CommandConfirmation.confirmHardReset(getShell(), repo)) {
return;
}
}
IDialogSettings settings = Activator.getDefault().getDialogSettings();
settings.put(RESET_TYPE_SETTING, resetType.name());
super.okPressed();
}
@Override
protected String getMessageText() {
return UIText.ResetTargetSelectionDialog_SelectBranchForResetMessage;
}
@Override
public String getRefName() {
String selected = super.getRefName();
if (selected != null)
return selected;
return parsedCommitish;
}
@Override
protected boolean markRef(String refName) {
// preselect HEAD if in the detached HEAD state
return super
.markRef(RepositoryUtil.isDetachedHead(repo) ? Constants.HEAD
: refName);
}
}