nsDragService.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* 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 nsDragService_h__

#define nsDragService_h__

#include "nsBaseDragService.h"

#include "AndroidGraphics.h"

#include "mozilla/java/GeckoDragAndDropNatives.h"

class nsITransferable;

class nsDragService final : public nsBaseDragService {

 public:

  nsDragService() = default;

  NS_DECL_ISUPPORTS_INHERITED

  static already_AddRefed<nsDragService> GetInstance();

  // nsIDragSession

  NS_IMETHOD GetData(nsITransferable* aTransferable, uint32_t anItem) override;

  NS_IMETHOD GetNumDropItems(uint32_t* aNumItems) override;

  NS_IMETHOD IsDataFlavorSupported(const char* aDataFlavor,

                                   bool* _retval) override;

  MOZ_CAN_RUN_SCRIPT NS_IMETHOD EndDragSession(bool aDoneDrag,

                                               uint32_t aKeyModifiers) override;

  NS_IMETHOD

  UpdateDragImage(nsINode* aImage, int32_t aImageX, int32_t aImageY) override;

  virtual bool MustUpdateDataTransfer(mozilla::EventMessage aMessage) override;

  void SetData(nsITransferable* aTransferable);

  static void SetDropData(

      mozilla::java::GeckoDragAndDrop::DropData::Param aDropData);

 protected:

  virtual ~nsDragService() = default;

  // nsBaseDragService

  MOZ_CAN_RUN_SCRIPT nsresult

  InvokeDragSessionImpl(nsIArray* anArrayTransferables,

                        const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,

                        uint32_t aActionType) override;

 private:

  mozilla::java::sdk::Bitmap::LocalRef CreateDragImage(

      nsINode* aNode, const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion);

  // our source data items

  nsCOMPtr<nsITransferable> mTransferable;

};

#endif  // nsDragService_h__