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/*
 * Copyright (C) 2012 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.motorola.studio.android.adt;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;

import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.jface.util.SafeRunnable;

import com.android.ddmlib.AndroidDebugBridge;
import com.android.ddmlib.AndroidDebugBridge.IClientChangeListener;
import com.android.ddmlib.AndroidDebugBridge.IDebugBridgeChangeListener;

public class StudioAndroidEventManager
{
    private static final HashMap<EventType, List<DdmsRunnable>> listeners =
            new HashMap<EventType, List<DdmsRunnable>>();

    public enum EventType
    {
        DEVICE_CONNECTED, DEVICE_DISCONNECTED, PACKAGE_INSTALLED, PACKAGE_UNINSTALLED,
        LANGUAGE_CHANGED
    };

    public static void addEventListener(EventType type, DdmsRunnable listener)
    {
        synchronized (listeners)
        {
            List<DdmsRunnable> typeListeners = listeners.get(type);
            if (typeListeners == null)
            {
                typeListeners = new LinkedList<DdmsRunnable>();
                listeners.put(type, typeListeners);
            }
            typeListeners.add(listener);
        }
    }

    public static void removeEventListener(EventType type, DdmsRunnable listener)
    {
        synchronized (listeners)
        {
            List<DdmsRunnable> typeListeners = listeners.get(type);
            if (typeListeners == null)
            {
                typeListeners = new LinkedList<DdmsRunnable>();
                listeners.put(type, typeListeners);
            }
            typeListeners.remove(listener);
        }
    }

    /**
     * Adds a IClientChangeListener asynchronously
     * 
     * @param listener The listener to add
     */
    public static void asyncAddClientChangeListener(final IClientChangeListener listener)
    {
        new Thread(new Runnable()
        {
            public void run()
            {
                AndroidDebugBridge.addClientChangeListener(listener);
            }
        }).start();
    }

    /**
     * Removes a IClientChangeListener asynchronously
     * 
     * @param listener The listener to remove
     */
    public static void asyncRemoveClientChangeListener(final IClientChangeListener listener)
    {
        new Thread(new Runnable()
        {

            public void run()
            {
                AndroidDebugBridge.removeClientChangeListener(listener);

            }
        }).start();
    }

    /**
     * Adds a IDebugBridgeChangeListener asynchronously
     * 
     * @param listener The listener to add
     */
    public static void asyncAddDebugBridgeChangeListener(final IDebugBridgeChangeListener listener)
    {
        new Thread(new Runnable()
        {

            public void run()
            {
                AndroidDebugBridge.addDebugBridgeChangeListener(listener);

            }
        }).start();
    }

    /**
     * Removes a IDebugBridgeChangeListener asynchronously
     * 
     * @param listener The listener to remove
     */
    public static void asyncRemoveDebugBridgeChangeListener(
            final IDebugBridgeChangeListener listener)
    {
        new Thread(new Runnable()
        {
            public void run()
            {
                AndroidDebugBridge.removeDebugBridgeChangeListener(listener);

            }
        }).start();
    }

    /**
     * Adds a IDeviceChangeListener asynchronously
     * 
     * @param listener The listener to add
     */
    public static void asyncAddDeviceChangeListeners(final DdmsRunnable connectedListener,
            final DdmsRunnable disconnectedListener)
    {
        new Thread(new Runnable()
        {
            public void run()
            {
                if (connectedListener != null)
                {
                    addEventListener(EventType.DEVICE_CONNECTED, connectedListener);
                }
                if (disconnectedListener != null)
                {
                    addEventListener(EventType.DEVICE_DISCONNECTED, disconnectedListener);
                }
            }
        }).start();
    }

    /**
     * Removes a IDeviceChangeListener asynchronously
     * 
     * @param listener The listener to remove
     */
    public static void asyncRemoveDeviceChangeListeners(final DdmsRunnable connectedListener,
            final DdmsRunnable disconnectedListener)
    {
        new Thread(new Runnable()
        {
            public void run()
            {
                if (connectedListener != null)
                {
                    removeEventListener(EventType.DEVICE_CONNECTED, connectedListener);
                }
                if (disconnectedListener != null)
                {
                    removeEventListener(EventType.DEVICE_DISCONNECTED, disconnectedListener);
                }
            }
        }).start();
    }

    public static void fireEvent(EventType type, final String serialNumber)
    {
        synchronized (listeners)
        {
            if (listeners.get(type) != null)
            {
                for (final DdmsRunnable runnable : listeners.get(type))
                {
                    SafeRunner.run(new SafeRunnable()
                    {
                        public void run() throws Exception
                        {
                            runnable.run(serialNumber);
                        }
                    });
                }
            }
        }
    }
}