Java tutorial
/******************************************************************************* * Copyright (c) 2011, 2012 GitHub Inc. * 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: * Kevin Sawicki (GitHub Inc.) - initial API and implementation * Daniel Megert <daniel_megert@ch.ibm.com> - handle RevisionSyntaxException *******************************************************************************/ package org.eclipse.egit.ui.internal.commit; import java.io.IOException; import java.text.MessageFormat; import java.util.Comparator; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.egit.ui.Activator; import org.eclipse.egit.ui.internal.GitLabelProvider; import org.eclipse.egit.ui.internal.UIText; import org.eclipse.egit.ui.internal.search.CommitSearchPage; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.StyledString; import org.eclipse.jgit.errors.RevisionSyntaxException; 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.search.ui.NewSearchUI; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Link; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.FilteredItemsSelectionDialog; /** * Commit selection dialog */ public class CommitSelectionDialog extends FilteredItemsSelectionDialog { private static final String COMMIT_SELECTION_DIALOG_SECTION = "CommitSelectionDialogSection"; //$NON-NLS-1$ private static class CommitLabelProvider extends GitLabelProvider { public String getText(Object element) { return getStyledText(element).getString(); } public StyledString getStyledText(Object element) { StyledString styled = new StyledString(); if (element instanceof RepositoryCommit) { RepositoryCommit commit = (RepositoryCommit) element; styled.append(commit.abbreviate()); styled.append(MessageFormat.format(UIText.CommitSelectionDialog_SectionMessage, commit.getRevCommit().getShortMessage()), StyledString.QUALIFIER_STYLER); styled.append( MessageFormat.format(UIText.CommitSelectionDialog_SectionRepo, commit.getRepositoryName()), StyledString.DECORATIONS_STYLER); } else if (element != null) styled.append(element.toString()); return styled; } } private CommitLabelProvider labelProvider; /** * Create commit selection dialog * * @param shell * @param multi */ public CommitSelectionDialog(Shell shell, boolean multi) { super(shell, multi); setTitle(UIText.CommitSelectionDialog_Title); setMessage(UIText.CommitSelectionDialog_Message); labelProvider = new CommitLabelProvider(); setListLabelProvider(labelProvider); setDetailsLabelProvider(new GitLabelProvider() { @Override public Image getImage(Object element) { if (element instanceof RepositoryCommit) { RepositoryCommit commit = (RepositoryCommit) element; return super.getImage(commit.getRepository()); } return super.getImage(element); } @Override public String getText(Object element) { if (element instanceof RepositoryCommit) { RepositoryCommit commit = (RepositoryCommit) element; return super.getText(commit.getRepository()); } return super.getText(element); } }); setInitialPattern(Constants.HEAD, FULL_SELECTION); } protected Control createExtendedContentArea(Composite parent) { Composite displayArea = new Composite(parent, SWT.NONE); GridLayoutFactory.fillDefaults().applyTo(displayArea); Link link = new Link(displayArea, SWT.NONE); link.setText(UIText.CommitSelectionDialog_LinkSearch); link.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { close(); NewSearchUI.openSearchDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow(), CommitSearchPage.ID); } }); return displayArea; } protected IDialogSettings getDialogSettings() { IDialogSettings settings = Activator.getDefault().getDialogSettings(); IDialogSettings section = settings.getSection(COMMIT_SELECTION_DIALOG_SECTION); if (section == null) section = settings.addNewSection(COMMIT_SELECTION_DIALOG_SECTION); return section; } protected IStatus validateItem(Object item) { return Status.OK_STATUS; } protected ItemsFilter createFilter() { return new ItemsFilter() { public boolean isSubFilter(ItemsFilter filter) { return false; } public boolean matchItem(Object item) { return true; } public boolean isConsistentItem(Object item) { return true; } }; } protected Comparator getItemsComparator() { return new Comparator<RepositoryCommit>() { public int compare(RepositoryCommit o1, RepositoryCommit o2) { int compare = o1.getRepositoryName().compareToIgnoreCase(o2.getRepositoryName()); if (compare == 0) compare = o1.getRevCommit().compareTo(o2.getRevCommit()); return compare; } }; } private Repository[] getRepositories() { return org.eclipse.egit.core.Activator.getDefault().getRepositoryCache().getAllRepositories(); } protected void fillContentProvider(AbstractContentProvider contentProvider, ItemsFilter itemsFilter, IProgressMonitor progressMonitor) throws CoreException { String pattern = itemsFilter.getPattern(); Repository[] repositories = getRepositories(); progressMonitor.beginTask(UIText.CommitSelectionDialog_TaskSearching, repositories.length); for (Repository repository : repositories) { try { ObjectId commitId; if (ObjectId.isId(pattern)) commitId = ObjectId.fromString(pattern); else commitId = repository.resolve(itemsFilter.getPattern()); if (commitId != null) { RevWalk walk = new RevWalk(repository); walk.setRetainBody(true); RevCommit commit = walk.parseCommit(commitId); contentProvider.add(new RepositoryCommit(repository, commit), itemsFilter); } } catch (RevisionSyntaxException ignored) { // Ignore and advance } catch (IOException ignored) { // Ignore and advance } progressMonitor.worked(1); } } public String getElementName(Object item) { return labelProvider.getText(item); } }