/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Gonk.
 *
 * The Initial Developer of the Original Code is
 * the Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Michael Wu <mwu@mozilla.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsAppShell_h
#define nsAppShell_h

#include <queue>

#include "mozilla/Mutex.h"
#include "mozilla/Observer.h"
#include "nsAutoPtr.h"
#include "nsBaseAppShell.h"
#include "nsRect.h"
#include "nsTArray.h"

#include "utils/RefBase.h"

namespace mozilla {
bool ProcessNextEvent();
void NotifyEvent();
namespace hal {
class SensorData;
typedef Observer<SensorData> ISensorObserver;
}
}

extern bool gDrawRequest;

class FdHandler;
typedef void(*FdHandlerCallback)(int, FdHandler *);

class FdHandler {
public:
    FdHandler()
    {
        memset(name, 0, sizeof(name));
    }

    int fd;
    char name[64];
    FdHandlerCallback func;
    void run()
    {
        func(fd, this);
    }
};

namespace android {
class EventHub;
class InputReader;
class InputReaderThread;
}

class GeckoInputReaderPolicy;
class GeckoInputDispatcher;

class nsAppShell : public nsBaseAppShell {
public:
    nsAppShell();

    nsresult Init();
    virtual bool ProcessNextNativeEvent(bool maywait);

    void NotifyNativeEvent();

    static void NotifyScreenInitialized();
    static void NotifyScreenRotation();

protected:
    virtual ~nsAppShell();

    virtual void ScheduleNativeEventCallback();

private:
    nsresult AddFdHandler(int fd, FdHandlerCallback handlerFunc,
                          const char* deviceName);
    void InitInputDevices();

    // This is somewhat racy but is perfectly safe given how the callback works
    bool mNativeCallbackRequest;
    nsTArray<FdHandler> mHandlers;

    android::sp<android::EventHub>               mEventHub;
    android::sp<GeckoInputReaderPolicy> mReaderPolicy;
    android::sp<GeckoInputDispatcher>   mDispatcher;
    android::sp<android::InputReader>            mReader;
    android::sp<android::InputReaderThread>      mReaderThread;
    nsAutoPtr<mozilla::hal::ISensorObserver>     mObserver;
};

#endif /* nsAppShell_h */