org.eclipse.m2e.ui.internal.launch.MavenLaunchExtensionsTab.java Source code

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Here is the source code for org.eclipse.m2e.ui.internal.launch.MavenLaunchExtensionsTab.java

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/*******************************************************************************
 * Copyright (c) 2008-2010 Sonatype, Inc.
 * 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:
 *      Sonatype, Inc. - initial API and implementation
 *******************************************************************************/

package org.eclipse.m2e.ui.internal.launch;

import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
import org.eclipse.debug.ui.AbstractLaunchConfigurationTab;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.ICheckStateProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Table;

import org.eclipse.m2e.actions.MavenLaunchConstants;
import org.eclipse.m2e.internal.launch.MavenLaunchParticipantInfo;
import org.eclipse.m2e.internal.launch.Messages;

public class MavenLaunchExtensionsTab extends AbstractLaunchConfigurationTab {

    private Set<String> disabledParticipants;

    private final List<MavenLaunchParticipantInfo> participants;

    private CheckboxTableViewer checkboxTableViewer;

    public MavenLaunchExtensionsTab(List<MavenLaunchParticipantInfo> participants) {
        this.participants = participants;
    }

    /**
     * @wbp.parser.entryPoint
     */
    public void createControl(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        setControl(composite);
        composite.setLayout(new GridLayout(1, false));

        Label lblMavenLaunchExtensions = new Label(composite, SWT.NONE);
        lblMavenLaunchExtensions.setText(Messages.MavenLaunchExtensionsTab_lblExtensions);

        checkboxTableViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER | SWT.FULL_SELECTION);
        checkboxTableViewer.addCheckStateListener(new ICheckStateListener() {
            public void checkStateChanged(CheckStateChangedEvent event) {
                if (event.getElement() instanceof MavenLaunchParticipantInfo) {
                    MavenLaunchParticipantInfo participant = (MavenLaunchParticipantInfo) event.getElement();
                    if (event.getChecked()) {
                        disabledParticipants.remove(participant.getId());
                    } else {
                        disabledParticipants.add(participant.getId());
                    }
                    setDirty(true);
                    updateLaunchConfigurationDialog();
                }
            }
        });
        Table table = checkboxTableViewer.getTable();
        table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

        checkboxTableViewer.setContentProvider(new IStructuredContentProvider() {
            public void dispose() {
            }

            public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
            }

            public Object[] getElements(Object inputElement) {
                if (inputElement instanceof Collection<?>) {
                    return ((Collection<?>) inputElement).toArray();
                }
                return null;
            }
        });

        checkboxTableViewer.setCheckStateProvider(new ICheckStateProvider() {
            public boolean isChecked(Object element) {
                if (element instanceof MavenLaunchParticipantInfo) {
                    return !disabledParticipants.contains(((MavenLaunchParticipantInfo) element).getId());
                }
                return false;
            }

            public boolean isGrayed(Object element) {
                return false;
            }
        });

        checkboxTableViewer.setLabelProvider(new ILabelProvider() {

            public void addListener(ILabelProviderListener listener) {
            }

            public void dispose() {
            }

            public boolean isLabelProperty(Object element, String property) {
                return false;
            }

            public void removeListener(ILabelProviderListener listener) {
            }

            public Image getImage(Object element) {
                return null;
            }

            public String getText(Object element) {
                if (element instanceof MavenLaunchParticipantInfo) {
                    return ((MavenLaunchParticipantInfo) element).getName();
                }
                return null;
            }
        });
    }

    public void setDefaults(ILaunchConfigurationWorkingCopy configuration) {
    }

    @SuppressWarnings("unchecked")
    public void initializeFrom(ILaunchConfiguration configuration) {
        try {
            disabledParticipants = new HashSet<String>(configuration
                    .getAttribute(MavenLaunchConstants.ATTR_DISABLED_EXTENSIONS, Collections.EMPTY_SET));
        } catch (CoreException ex) {
            disabledParticipants = new HashSet<String>();
        }

        checkboxTableViewer.setInput(participants);
    }

    public void performApply(ILaunchConfigurationWorkingCopy configuration) {
        Set<String> disabledParticipants = this.disabledParticipants.isEmpty() ? null : this.disabledParticipants;
        configuration.setAttribute(MavenLaunchConstants.ATTR_DISABLED_EXTENSIONS, disabledParticipants);
    }

    public String getName() {
        return Messages.MavenLaunchExtensionsTab_name;
    }

}