org.eclipse.egit.ui.internal.dialogs.RenameBranchDialog.java Source code

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Here is the source code for org.eclipse.egit.ui.internal.dialogs.RenameBranchDialog.java

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/*******************************************************************************
 * Copyright (C) 2007, Dave Watson <dwatson@mimvista.com>
 * Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
 * Copyright (C) 2010, Chris Aniszczyk <caniszczyk@gmail.com>
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * Copyright (C) 2011, Dariusz Luksza <dariusz@luksza.org>
 *
 * 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.dialogs;

import org.eclipse.egit.ui.Activator;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.ValidationUtils;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;

/**
 * The branch and reset selection dialog
 */
public class RenameBranchDialog extends AbstractBranchSelectionDialog {
    /**
     * Construct a dialog to select a branch to reset to or check out
     *
     * @param parentShell
     * @param repo
     */
    public RenameBranchDialog(Shell parentShell, Repository repo) {
        super(parentShell, repo, SHOW_LOCAL_BRANCHES | SHOW_REMOTE_BRANCHES | EXPAND_LOCAL_BRANCHES_NODE);
    }

    private InputDialog getRefNameInputDialog(String prompt, final String refPrefix, String initialValue) {
        InputDialog branchNameDialog = new InputDialog(getShell(),
                UIText.RenameBranchDialog_RenameBranchDialogNewNameInputWindowTitle, prompt, initialValue,
                ValidationUtils.getRefNameInputValidator(repo, refPrefix, true));
        branchNameDialog.setBlockOnOpen(true);
        return branchNameDialog;
    }

    @Override
    protected void okPressed() {
        String refName = refNameFromDialog();
        String refPrefix;

        if (refName.startsWith(Constants.R_HEADS))
            refPrefix = Constants.R_HEADS;
        else if (refName.startsWith(Constants.R_REMOTES))
            refPrefix = Constants.R_REMOTES;
        else if (refName.startsWith(Constants.R_TAGS))
            refPrefix = Constants.R_TAGS;
        else {
            // the button should be disabled anyway, but we check again
            return;
        }

        String branchName = refName.substring(refPrefix.length());

        InputDialog labelDialog = getRefNameInputDialog(
                NLS.bind(UIText.RenameBranchDialog_NewNameInputDialogPrompt, branchName, refPrefix), refPrefix,
                branchName);
        if (labelDialog.open() == Window.OK) {
            String newRefName = refPrefix + labelDialog.getValue();
            try {
                new Git(repo).branchRename().setOldName(refName).setNewName(labelDialog.getValue()).call();
                branchTree.refresh();
                markRef(newRefName);
            } catch (Throwable e1) {
                reportError(e1, UIText.RenameBranchDialog_RenameErrorMessage, refName, newRefName, e1.getMessage());
            }
        }
        super.okPressed();
    }

    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        super.createButtonsForButtonBar(parent);
        getButton(Window.OK).setText(UIText.RenameBranchDialog_RenameButtonLabel);

        // can't advance without a selection
        getButton(Window.OK).setEnabled(!branchTree.getSelection().isEmpty());
    }

    /**
     * @return the message shown above the refs tree
     */
    protected String getMessageText() {
        return UIText.RenameBranchDialog_DialogMessage;
    }

    /**
     * Subclasses may add UI elements
     *
     * @param parent
     */
    protected void createCustomArea(Composite parent) {
        // do nothing
    }

    /**
     * Subclasses may change the title of the dialog
     *
     * @return the title of the dialog
     */
    protected String getTitle() {
        return UIText.RenameBranchDialog_DialogTitle;
    }

    @Override
    protected String getWindowTitle() {
        return UIText.RenameBranchDialog_WindowTitle;
    }

    @Override
    protected int getShellStyle() {
        return super.getShellStyle() | SWT.RESIZE;
    }

    private void reportError(Throwable e, String message, Object... args) {
        String msg = NLS.bind(message, args);
        Activator.handleError(msg, e, true);
    }

    @Override
    protected void refNameSelected(String refName) {
        boolean tagSelected = refName != null && refName.startsWith(Constants.R_TAGS);

        boolean branchSelected = refName != null
                && (refName.startsWith(Constants.R_HEADS) || refName.startsWith(Constants.R_REMOTES));

        getButton(Window.OK).setEnabled(branchSelected || tagSelected);
    }
}