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/*******************************************************************************
* Copyright (C) 2008, 2015 Tomi Pakarinen <tomi.pakarinen@iki.fi> and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Benjamin Muskalla (Tasktop Technologies Inc) - Hyperlinking of HEAD
*******************************************************************************/
package org.eclipse.egit.ui.internal.preferences;
import java.io.IOException;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.egit.core.AdapterUtils;
import org.eclipse.egit.core.project.RepositoryMapping;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.UIUtils;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.commit.CommitEditor;
import org.eclipse.egit.ui.internal.commit.RepositoryCommit;
import org.eclipse.egit.ui.internal.trace.GitTraceLocation;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.resource.JFaceColors;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.RefDatabase;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.dialogs.PropertyPage;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.events.HyperlinkEvent;
import org.eclipse.ui.forms.widgets.Hyperlink;
/**
* Property page to be shown in project properties, if project is shared using
* git provider. Currently there aren't any modifiable elements.
*/
public class GitProjectPropertyPage extends PropertyPage {
private Text gitDir;
private Text branch;
private Text state;
private Text workDir;
@Override
protected Control createContents(Composite parent) {
// this page just shows read-only information to the user, no
// default/apply buttons needed
noDefaultAndApplyButton();
final Composite composite = new Composite(parent, SWT.NULL);
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
final GridLayout layout = new GridLayout();
layout.numColumns = 2;
layout.marginHeight = 0;
layout.marginWidth = 0;
composite.setLayout(layout);
gitDir = createLabeledReadOnlyText(composite, UIText.GitProjectPropertyPage_LabelGitDir);
workDir = createLabeledReadOnlyText(composite, UIText.GitProjectPropertyPage_LabelWorkdir);
branch = createLabeledReadOnlyText(composite, UIText.GitProjectPropertyPage_LabelBranch);
state = createLabeledReadOnlyText(composite, UIText.GitProjectPropertyPage_LabelState);
// Get the project that is the source of this property page
IProject project = null;
final IAdaptable element = getElement();
if (element instanceof IResource) {
project = ((IResource) element).getProject();
} else {
IResource adapter = AdapterUtils.adapt(element, IResource.class);
if (adapter != null) {
project = adapter.getProject();
}
}
RepositoryMapping mapping = RepositoryMapping.getMapping(project);
if (mapping != null) {
Repository repository = mapping.getRepository();
if (repository != null) {
try {
createHeadLink(repository, composite);
fillValues(repository);
} catch (IOException e) {
if (GitTraceLocation.UI.isActive())
GitTraceLocation.getTrace().trace(
GitTraceLocation.UI.getLocation(),
e.getMessage(), e);
}
}
}
return composite;
}
private void createHeadLink(final Repository repository, Composite composite) throws IOException {
String fullBranch = repository.getFullBranch();
final ObjectId objectId = (fullBranch != null)
? repository.resolve(fullBranch)
: null;
if (objectId == null) {
Text headLabel = createLabeledReadOnlyText(composite, UIText.GitProjectPropertyPage_LabelId);
if (repository.getRefDatabase().getRefsByPrefix(RefDatabase.ALL)
.isEmpty())
headLabel.setText(UIText.GitProjectPropertyPage_ValueEmptyRepository);
else
headLabel.setText(UIText.GitProjectPropertyPage_ValueUnbornBranch);
} else {
Hyperlink headLink = createHeadHyperLink(composite, UIText.GitProjectPropertyPage_LabelId);
headLink.setText(objectId.name());
headLink.setUnderlined(true);
headLink.setFont(JFaceResources.getDialogFont());
headLink.setForeground(JFaceColors.getHyperlinkText(headLink
.getDisplay()));
headLink.addHyperlinkListener(new HyperlinkAdapter() {
@Override
public void linkActivated(HyperlinkEvent e) {
RepositoryCommit commit = getCommit(repository,
objectId);
if(commit != null)
CommitEditor.openQuiet(commit);
}
});
}
}
private void fillValues(final Repository repository) throws IOException {
gitDir.setText(repository.getDirectory().getAbsolutePath());
branch.setText(repository.getBranch());
workDir.setText(repository.getWorkTree().getAbsolutePath());
state.setText(repository.getRepositoryState().getDescription());
}
private RepositoryCommit getCommit(Repository repository, ObjectId objectId) {
try (RevWalk walk = new RevWalk(repository)) {
RevCommit commit = walk.parseCommit(objectId);
for (RevCommit parent : commit.getParents())
walk.parseBody(parent);
return new RepositoryCommit(repository, commit);
} catch (IOException e) {
Activator.showError(NLS.bind(
UIText.GitProjectPropertyPage_UnableToGetCommit,
objectId.name()), e);
}
return null;
}
/**
* Create a read only text field with a label
*
* @param parent
* the parent composite for new widgets
* @param labelText
* text for label
* @return the new read only text field
*/
private Text createLabeledReadOnlyText(Composite parent,
final String labelText) {
createLabel(parent, labelText);
Text text = createText(parent);
return text;
}
private Hyperlink createHeadHyperLink(Composite composite,
String labelText) {
createLabel(composite, labelText);
Hyperlink hyperlink = new Hyperlink(composite, SWT.NONE);
hyperlink.setLayoutData(GridDataFactory.fillDefaults().create());
return hyperlink;
}
private Text createText(Composite parent) {
GridData data = new GridData();
Text text = UIUtils.createSelectableLabel(parent, SWT.LEFT);
data.horizontalSpan = 1;
data.horizontalAlignment = GridData.FILL;
text.setLayoutData(data);
return text;
}
private void createLabel(Composite parent, final String labelText) {
Label label = new Label(parent, SWT.LEFT);
label.setText(labelText);
GridData data = new GridData();
data.horizontalSpan = 1;
data.horizontalAlignment = GridData.FILL;
label.setLayoutData(data);
}
}
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