com.vectrace.MercurialEclipse.synchronize.actions.EditChangesetSynchronizeAction.java Source code

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Here is the source code for com.vectrace.MercurialEclipse.synchronize.actions.EditChangesetSynchronizeAction.java

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/*******************************************************************************
 * Copyright (c) 2004, 2006 Subclipse project 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:
 *     Subclipse project committers - initial API and implementation
 *     Bastian Doetsch            - Adaption to Mercurial
 *     Andrei Loskutov - bug fixes
 *******************************************************************************/
package com.vectrace.MercurialEclipse.synchronize.actions;

import org.eclipse.compare.structuremergeviewer.IDiffElement;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.team.ui.synchronize.ISynchronizePageConfiguration;
import org.eclipse.team.ui.synchronize.SynchronizeModelAction;
import org.eclipse.team.ui.synchronize.SynchronizeModelOperation;

import com.vectrace.MercurialEclipse.MercurialEclipsePlugin;
import com.vectrace.MercurialEclipse.model.GroupedUncommittedChangeSet;

/**
 * Get action that appears in the synchronize view. It's main purpose is to
 * filter the selection and delegate its execution to the get operation.
 */
public class EditChangesetSynchronizeAction extends SynchronizeModelAction {

    public static final String ID = "hg.editChangeset";

    public EditChangesetSynchronizeAction(String text, ISynchronizePageConfiguration configuration,
            ISelectionProvider selectionProvider) {
        super(text, configuration, selectionProvider);
        setId(ID);
        setImageDescriptor(MercurialEclipsePlugin.getImageDescriptor("elcl16/uncommitted_cs.gif",
                "ovr/edited_ovr.gif", IDecoration.TOP_RIGHT));
    }

    @Override
    protected SynchronizeModelOperation getSubscriberOperation(ISynchronizePageConfiguration configuration,
            IDiffElement[] elements) {
        IStructuredSelection sel = getStructuredSelection();
        // it's guaranteed that we have exact one element
        Object object = sel.getFirstElement();
        if (isSupported(object)) {
            return new EditChangesetSynchronizeOperation(configuration, elements,
                    (GroupedUncommittedChangeSet) object);
        }
        return null;
    }

    @Override
    protected boolean updateSelection(IStructuredSelection selection) {
        boolean updateSelection = super.updateSelection(selection);
        if (!updateSelection) {
            Object[] array = selection.toArray();
            if (selection.size() != 1) {
                return false;
            }
            return isSupported(array[0]);
        }
        return updateSelection;
    }

    private static boolean isSupported(Object object) {
        return object instanceof GroupedUncommittedChangeSet;
    }

}