widget/android/nsDragService.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsDragService_h__
   7 #define nsDragService_h__
   8
   9 #include "nsBaseDragService.h"
  10
  11 #include "AndroidGraphics.h"
  12 #include "mozilla/java/GeckoDragAndDropNatives.h"
  13
  14 class nsITransferable;
  15
  16 class nsDragService final : public nsBaseDragService {
  17  public:
  18   nsDragService() = default;
  19
  20   NS_DECL_ISUPPORTS_INHERITED
  21
  22   static already_AddRefed<nsDragService> GetInstance();
  23
  24   // nsIDragSession
  25   NS_IMETHOD GetData(nsITransferable* aTransferable, uint32_t anItem) override;
  26   NS_IMETHOD GetNumDropItems(uint32_t* aNumItems) override;
  27   NS_IMETHOD IsDataFlavorSupported(const char* aDataFlavor,
  28                                    bool* _retval) override;
  29   MOZ_CAN_RUN_SCRIPT NS_IMETHOD EndDragSession(bool aDoneDrag,
  30                                                uint32_t aKeyModifiers) override;
  31   NS_IMETHOD
  32   UpdateDragImage(nsINode* aImage, int32_t aImageX, int32_t aImageY) override;
  33   virtual bool MustUpdateDataTransfer(mozilla::EventMessage aMessage) override;
  34
  35   void SetData(nsITransferable* aTransferable);
  36
  37   static void SetDropData(
  38       mozilla::java::GeckoDragAndDrop::DropData::Param aDropData);
  39
  40  protected:
  41   virtual ~nsDragService() = default;
  42
  43   // nsBaseDragService
  44   MOZ_CAN_RUN_SCRIPT nsresult
  45   InvokeDragSessionImpl(nsIArray* anArrayTransferables,
  46                         const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
  47                         uint32_t aActionType) override;
  48
  49  private:
  50   mozilla::java::sdk::Bitmap::LocalRef CreateDragImage(
  51       nsINode* aNode, const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion);
  52
  53   // our source data items
  54   nsCOMPtr<nsITransferable> mTransferable;
  55 };
  56
  57 #endif  // nsDragService_h__