/*
 ** Copyright 2011, The Android Open Source Project
 **
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 **
 **     http://www.apache.org/licenses/LICENSE-2.0
 **
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 */

package com.android.ide.eclipse.gltrace;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.console.ConsolePlugin;
import org.eclipse.ui.console.IConsole;
import org.eclipse.ui.console.IConsoleConstants;
import org.eclipse.ui.console.MessageConsole;
import org.eclipse.ui.console.MessageConsoleStream;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class GlTracePlugin extends AbstractUIPlugin {

    // The plug-in ID
    public static final String PLUGIN_ID = "com.android.ide.eclipse.gldebugger"; //$NON-NLS-1$

    // The shared instance
    private static GlTracePlugin plugin;

    private MessageConsole mConsole;
    private MessageConsoleStream mConsoleStream;

    /**
     * The constructor
     */
    public GlTracePlugin() {
    }

    /*
     * (non-Javadoc)
     * @see
     * org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
     * )
     */
    @Override
    public void start(BundleContext context) throws Exception {
        super.start(context);
        plugin = this;

        mConsole = new MessageConsole("OpenGL Trace View", null);
        ConsolePlugin.getDefault().getConsoleManager().addConsoles(new IConsole[] {
                mConsole });

        mConsoleStream = mConsole.newMessageStream();
    }

    /*
     * (non-Javadoc)
     * @see
     * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext
     * )
     */
    @Override
    public void stop(BundleContext context) throws Exception {
        plugin = null;
        super.stop(context);
    }

    /**
     * Returns the shared instance
     *
     * @return the shared instance
     */
    public static GlTracePlugin getDefault() {
        return plugin;
    }

    /**
     * Returns an image descriptor for the image file at the given plug-in
     * relative path
     *
     * @param path the path
     * @return the image descriptor
     */
    public static ImageDescriptor getImageDescriptor(String path) {
        return imageDescriptorFromPlugin(PLUGIN_ID, path);
    }

    public void logMessage(String message) {
        mConsoleStream.println(message);

        Display.getDefault().asyncExec(sShowConsoleRunnable);
    }

    private static Runnable sShowConsoleRunnable = new Runnable() {
        @Override
        public void run() {
            showConsoleView();
        };
    };

    private static void showConsoleView() {
        IWorkbenchWindow w = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        if (w != null) {
            IWorkbenchPage page = w.getActivePage();
            if (page != null) {
                try {
                    page.showView(IConsoleConstants.ID_CONSOLE_VIEW, null,
                            IWorkbenchPage.VIEW_VISIBLE);
                } catch (PartInitException e) {
                    // ignore
                }
            }
        }
    }
}