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/*******************************************************************************
* Copyright (C) 2011, 2013 Dariusz Luksza <dariusz@luksza.org> 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
*******************************************************************************/
package org.eclipse.egit.ui.internal.actions;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.egit.core.internal.indexdiff.IndexDiffCache;
import org.eclipse.egit.core.internal.indexdiff.IndexDiffCacheEntry;
import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.UIIcons;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.commands.shared.AbortRebaseCommand;
import org.eclipse.egit.ui.internal.commands.shared.AbstractRebaseCommandHandler;
import org.eclipse.egit.ui.internal.commands.shared.AbstractSharedCommandHandler;
import org.eclipse.egit.ui.internal.commands.shared.ContinueRebaseCommand;
import org.eclipse.egit.ui.internal.commands.shared.SkipRebaseCommand;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.RepositoryState;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.ui.IWorkbenchWindowPulldownDelegate;
/**
* A pulldown action to rebase the current branch, or continue, skip or abort an
* active rebase.
*
* @see RebaseActionHandler
*/
public class RebaseAction extends RepositoryAction implements
IWorkbenchWindowPulldownDelegate {
private final Image rebaseSkip;
private final Image rebaseAbort;
private final Image rebaseContinue;
/**
*
*/
public RebaseAction() {
super(ActionCommands.REBASE_ACTION, new RebaseActionHandler());
rebaseSkip = UIIcons.REBASE_SKIP.createImage();
rebaseAbort = UIIcons.REBASE_ABORT.createImage();
rebaseContinue = UIIcons.REBASE_CONTINUE.createImage();
}
@Override
public Menu getMenu(Control parent) {
Menu menu = new Menu(parent);
Repository repo = getRepository();
boolean rebaseing = isInRebasingState(repo);
boolean canContinue = rebaseing && canContinue(repo);
addMenuItem(menu, UIText.RebasePulldownAction_Continue, rebaseContinue,
new ContinueRebaseCommand(), canContinue);
addMenuItem(menu, UIText.RebasePulldownAction_Skip, rebaseSkip,
new SkipRebaseCommand(), rebaseing);
addMenuItem(menu, UIText.RebasePulldownAction_Abort, rebaseAbort,
new AbortRebaseCommand(), rebaseing);
return menu;
}
@Override
public void dispose() {
rebaseSkip.dispose();
rebaseAbort.dispose();
rebaseContinue.dispose();
super.dispose();
}
@Override
protected boolean shouldRunAction() {
Repository repo = getRepository();
return !isInRebasingState(repo);
}
private void addMenuItem(Menu parent, String itemName, Image image,
AbstractRebaseCommandHandler action, boolean isEnabled) {
MenuItem item = new MenuItem(parent, SWT.PUSH);
item.setImage(image);
item.setText(itemName);
item.setEnabled(isEnabled);
ExecutionEvent event = createExecutionEvent();
ItemSelectionListener selectionListener = new ItemSelectionListener(
action, event);
item.addSelectionListener(selectionListener);
}
private Repository getRepository() {
ExecutionEvent event = createExecutionEvent();
return AbstractSharedCommandHandler.getRepository(event);
}
private boolean isInRebasingState(Repository repo) {
if (repo == null)
return false;
RepositoryState state = repo.getRepositoryState();
return state.isRebasing();
}
private boolean canContinue(Repository repo) {
IndexDiffCache diffCache = org.eclipse.egit.core.Activator.getDefault()
.getIndexDiffCache();
if (diffCache != null) {
IndexDiffCacheEntry entry = diffCache.getIndexDiffCacheEntry(repo);
return entry != null
&& entry.getIndexDiff().getConflicting().isEmpty();
}
return false;
}
private static class ItemSelectionListener implements SelectionListener {
private final ExecutionEvent event;
private final AbstractRebaseCommandHandler action;
private ItemSelectionListener(AbstractRebaseCommandHandler action,
ExecutionEvent event) {
this.event = event;
this.action = action;
}
@Override
public void widgetSelected(SelectionEvent selectionEvent) {
try {
action.execute(event);
} catch (ExecutionException e) {
Activator.logError(e.getMessage(), e);
}
}
@Override
public void widgetDefaultSelected(SelectionEvent e) {
// not used
}
}
}
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