com.vectrace.MercurialEclipse.wizards.AddBranchPage.java Source code

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Here is the source code for com.vectrace.MercurialEclipse.wizards.AddBranchPage.java

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/*******************************************************************************
 * Copyright (c) 2005-2008 VecTrace (Zingo Andersen) 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:
 * bastian   implementation
 *     Andrei Loskutov - bug fixes
 *******************************************************************************/
package com.vectrace.MercurialEclipse.wizards;

import java.util.HashSet;
import java.util.Set;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;

import com.aragost.javahg.commands.Branch;
import com.vectrace.MercurialEclipse.MercurialEclipsePlugin;
import com.vectrace.MercurialEclipse.commands.HgBranchClient;
import com.vectrace.MercurialEclipse.exception.HgException;
import com.vectrace.MercurialEclipse.model.HgRoot;
import com.vectrace.MercurialEclipse.ui.SWTWidgetHelper;

/**
 * @author bastian
 *
 */
public class AddBranchPage extends HgWizardPage {

    private Button forceCheckBox;
    private Text branchNameTextField;
    private Button commitCheckBox;
    private final HgRoot hgRoot;
    private final Set<String> branchNames;

    public AddBranchPage(HgRoot hgRoot, String pageName, String title, ImageDescriptor titleImage,
            String description) {
        super(pageName, title, titleImage, description);
        this.hgRoot = hgRoot;
        branchNames = new HashSet<String>();
    }

    public void createControl(Composite parent) {
        Composite composite = SWTWidgetHelper.createComposite(parent, 2);
        SWTWidgetHelper.createLabel(composite, Messages.getString("AddBranchPage.branchNameTextField.title")); //$NON-NLS-1$
        try {
            Branch[] branches = HgBranchClient.getBranches(hgRoot);
            for (Branch branch : branches) {
                branchNames.add(branch.getName());
            }
        } catch (HgException e1) {
            MercurialEclipsePlugin.logError(e1);
        }
        branchNameTextField = SWTWidgetHelper.createTextField(composite);
        branchNameTextField.addModifyListener(new ModifyListener() {

            public void modifyText(ModifyEvent e) {
                validateIfBranchExists();
            }
        });
        commitCheckBox = SWTWidgetHelper.createCheckBox(composite,
                Messages.getString("AddBranchPage.commitCheckBox.title")); //$NON-NLS-1$
        commitCheckBox.setToolTipText(Messages.getString("AddBranchPage.commitCheckBox.tooltip"));
        commitCheckBox.setSelection(true);
        forceCheckBox = SWTWidgetHelper.createCheckBox(composite,
                Messages.getString("AddBranchPage.forceCheckBox.title")); //$NON-NLS-1$
        forceCheckBox.addSelectionListener(new SelectionListener() {
            public void widgetSelected(SelectionEvent e) {
                validateIfBranchExists();
            }

            public void widgetDefaultSelected(SelectionEvent e) {
                widgetSelected(e);
            }
        });
        setControl(composite);
    }

    @Override
    public boolean finish(IProgressMonitor monitor) {
        return super.finish(monitor);
    }

    public boolean isForceEnabled() {
        return forceCheckBox.getSelection();
    }

    public boolean isCommitEnabled() {
        return commitCheckBox.getSelection();
    }

    public String getBranchName() {
        return branchNameTextField.getText();
    }

    /**
     * @return true if branch does not exists yet
     */
    public boolean validateIfBranchExists() {
        String text = branchNameTextField.getText();
        if (branchNames.contains(text)) {
            if (!forceCheckBox.getSelection()) {
                setMessage(null, IMessageProvider.WARNING);
                setErrorMessage("'" + text + "' branch already exists!");
            } else {
                setErrorMessage(null);
                setMessage("'" + text + "' branch shadows existing branch.", IMessageProvider.WARNING);
            }
            return false;
        }
        setMessage(null, IMessageProvider.WARNING);
        setErrorMessage(null);
        return true;
    }

}