/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef APZCCallbackHandler_h__
#define APZCCallbackHandler_h__

#include "mozilla/layers/GeckoContentController.h"
#include "mozilla/TimeStamp.h"
#include "GeneratedJNIWrappers.h"
#include "nsIDOMWindowUtils.h"
#include "nsTArray.h"

namespace mozilla {
namespace widget {
namespace android {

class APZCCallbackHandler MOZ_FINAL : public mozilla::layers::GeckoContentController
{
private:
    static StaticRefPtr<APZCCallbackHandler> sInstance;
    NativePanZoomController* mNativePanZoomController;

private:
    APZCCallbackHandler()
      : mNativePanZoomController(nullptr)
    {}

    nsIDOMWindowUtils* GetDOMWindowUtils();

public:
    static APZCCallbackHandler* GetInstance() {
        if (sInstance.get() == nullptr) {
            sInstance = new APZCCallbackHandler();
        }
        return sInstance.get();
    }

    NativePanZoomController* SetNativePanZoomController(jobject obj);
    void NotifyDefaultPrevented(uint64_t aInputBlockId, bool aDefaultPrevented);

public: // GeckoContentController methods
    void RequestContentRepaint(const mozilla::layers::FrameMetrics& aFrameMetrics) MOZ_OVERRIDE;
    void AcknowledgeScrollUpdate(const mozilla::layers::FrameMetrics::ViewID& aScrollId,
                                 const uint32_t& aScrollGeneration) MOZ_OVERRIDE;
    void HandleDoubleTap(const mozilla::CSSPoint& aPoint, int32_t aModifiers,
                         const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
    void HandleSingleTap(const mozilla::CSSPoint& aPoint, int32_t aModifiers,
                         const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
    void HandleLongTap(const mozilla::CSSPoint& aPoint, int32_t aModifiers,
                       const mozilla::layers::ScrollableLayerGuid& aGuid,
                       uint64_t aInputBlockId) MOZ_OVERRIDE;
    void HandleLongTapUp(const mozilla::CSSPoint& aPoint, int32_t aModifiers,
                         const mozilla::layers::ScrollableLayerGuid& aGuid) MOZ_OVERRIDE;
    void SendAsyncScrollDOMEvent(bool aIsRoot, const mozilla::CSSRect& aContentRect,
                                 const mozilla::CSSSize& aScrollableSize) MOZ_OVERRIDE;
    void PostDelayedTask(Task* aTask, int aDelayMs) MOZ_OVERRIDE;
};

} // namespace android
} // namespace widget
} // namespace mozilla

#endif