org.eclipse.egit.ui.internal.history.command.AmbiguousBranchDialog.java Source code

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Here is the source code for org.eclipse.egit.ui.internal.history.command.AmbiguousBranchDialog.java

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/*******************************************************************************
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * and other copyright owners as documented in the project's IP log.
 *
 * 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:
 *    Robin Rosenberg - Refactoring from CheckoutCommand
 *******************************************************************************/
package org.eclipse.egit.ui.internal.history.command;

import java.util.List;

import org.eclipse.egit.ui.internal.GitLabelProvider;
import org.eclipse.egit.ui.internal.repository.tree.RefNode;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;

abstract class AmbiguousBranchDialog extends MessageDialog {

    private final List<RefNode> nodes;

    private TableViewer branchesList;

    private RefNode selected;

    AmbiguousBranchDialog(Shell parentShell, List<RefNode> nodes, String title, String message) {
        super(parentShell, title, null, message, MessageDialog.QUESTION,
                new String[] { IDialogConstants.OK_LABEL, IDialogConstants.CANCEL_LABEL }, 0);
        this.nodes = nodes;
    }

    @Override
    protected Control createCustomArea(Composite parent) {
        Composite area = new Composite(parent, SWT.NONE);
        area.setLayoutData(new GridData(GridData.FILL_BOTH));
        area.setLayout(new FillLayout());

        branchesList = new TableViewer(area, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        branchesList.setContentProvider(ArrayContentProvider.getInstance());
        branchesList.setLabelProvider(new GitLabelProvider());
        branchesList.setInput(nodes);
        branchesList.addSelectionChangedListener(new ISelectionChangedListener() {

            public void selectionChanged(SelectionChangedEvent event) {
                getButton(OK).setEnabled(!event.getSelection().isEmpty());
            }
        });
        return area;
    }

    @Override
    protected void buttonPressed(int buttonId) {
        if (buttonId == OK)
            selected = (RefNode) ((IStructuredSelection) branchesList.getSelection()).getFirstElement();
        super.buttonPressed(buttonId);
    }

    @Override
    public void create() {
        super.create();
        getButton(OK).setEnabled(false);
    }

    public RefNode getSelectedNode() {
        return selected;
    }
}