/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Copyright 2012 Mozilla Foundation and Mozilla contributors
 *
 * 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.
 */

#ifndef nsScreenManagerGonk_h___
#define nsScreenManagerGonk_h___

#include "mozilla/Hal.h"
#include "nsCOMPtr.h"

#include "nsBaseScreen.h"
#include "nsIScreenManager.h"

class nsRunnable;
class nsWindow;

class nsScreenGonk : public nsBaseScreen
{
    typedef mozilla::hal::ScreenConfiguration ScreenConfiguration;

public:
    nsScreenGonk(uint32_t aId, ANativeWindow* aNativeWindow);

    ~nsScreenGonk();

    NS_IMETHOD GetId(uint32_t* aId);
    NS_IMETHOD GetRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight);
    NS_IMETHOD GetAvailRect(int32_t* aLeft, int32_t* aTop, int32_t* aWidth, int32_t* aHeight);
    NS_IMETHOD GetPixelDepth(int32_t* aPixelDepth);
    NS_IMETHOD GetColorDepth(int32_t* aColorDepth);
    NS_IMETHOD GetRotation(uint32_t* aRotation);
    NS_IMETHOD SetRotation(uint32_t  aRotation);

    uint32_t GetId();
    nsIntRect GetRect();
    float GetDpi();
    ANativeWindow* GetNativeWindow();
    nsIntRect GetNaturalBounds();
    uint32_t EffectiveScreenRotation();
    ScreenConfiguration GetConfiguration();
    bool IsPrimaryScreen();

    void RegisterWindow(nsWindow* aWindow);
    void UnregisterWindow(nsWindow* aWindow);
    void BringToTop(nsWindow* aWindow);

    const nsTArray<nsWindow*>& GetTopWindows() const
    {
        return mTopWindows;
    }

protected:
    uint32_t mId;
    int32_t mColorDepth;
    android::sp<ANativeWindow> mNativeWindow;
    float mDpi;
    nsIntRect mNaturalBounds; // Screen bounds w/o rotation taken into account.
    nsIntRect mVirtualBounds; // Screen bounds w/ rotation taken into account.
    uint32_t mScreenRotation;
    uint32_t mPhysicalScreenRotation;
    nsTArray<nsWindow*> mTopWindows;
};

class nsScreenManagerGonk final : public nsIScreenManager
{
public:
    enum {
        // TODO: Bug 1138287 will define more screen/display types.
        PRIMARY_SCREEN_TYPE = 0,

        // TODO: Maintain a mapping from type to id dynamically.
        PRIMARY_SCREEN_ID = 0,
    };

public:
    nsScreenManagerGonk();

    NS_DECL_ISUPPORTS
    NS_DECL_NSISCREENMANAGER

    static already_AddRefed<nsScreenManagerGonk> GetInstance();
    static already_AddRefed<nsScreenGonk> GetPrimaryScreen();

    void Initialize();
    void DisplayEnabled(bool aEnabled);

    void AddScreen(uint32_t aDisplayType);
    void RemoveScreen(uint32_t aDisplayType);

protected:
    ~nsScreenManagerGonk();
    void VsyncControl(bool aEnabled);
    uint32_t GetIdFromType(uint32_t aDisplayType);

    bool mInitialized;
    nsTArray<nsRefPtr<nsScreenGonk>> mScreens;
    nsRefPtr<nsRunnable> mScreenOnEvent;
    nsRefPtr<nsRunnable> mScreenOffEvent;
};

#endif /* nsScreenManagerGonk_h___ */