зеркало из https://github.com/mozilla/gecko-dev.git
72 строки
2.4 KiB
C++
72 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsDragService_h__
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#define nsDragService_h__
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#include "nsBaseDragService.h"
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#include <windows.h>
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#include <shlobj.h>
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struct IDataObject;
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class nsDataObjCollection;
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/**
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* Windows native nsIDragSession implementation
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*/
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class nsDragSession : public nsBaseDragSession {
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public:
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virtual ~nsDragSession();
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// nsIDragSession
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NS_IMETHOD GetData(nsITransferable* aTransferable, uint32_t anItem) override;
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NS_IMETHOD GetNumDropItems(uint32_t* aNumItems) override;
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NS_IMETHOD IsDataFlavorSupported(const char* aDataFlavor,
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bool* _retval) override;
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NS_IMETHOD UpdateDragImage(nsINode* aImage, int32_t aImageX,
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int32_t aImageY) override;
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void SetIDataObject(IDataObject* aDataObj);
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IDataObject* GetDataObject() { return mDataObject; }
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MOZ_CAN_RUN_SCRIPT virtual nsresult InvokeDragSessionImpl(
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nsIWidget* aWidget, nsIArray* anArrayTransferables,
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const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
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uint32_t aActionType);
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MOZ_CAN_RUN_SCRIPT nsresult
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EndDragSessionImpl(bool aDoneDrag, uint32_t aKeyModifiers) override;
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MOZ_CAN_RUN_SCRIPT nsresult StartInvokingDragSession(nsIWidget* aWidget,
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IDataObject* aDataObj,
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uint32_t aActionType);
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// A drop occurred within the application vs. outside of it.
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void SetDroppedLocal();
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protected:
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// determine if we have a single data object or one of our private
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// collections
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static bool IsCollectionObject(IDataObject* inDataObj);
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static nsDataObjCollection* GetDataObjCollection(IDataObject* aDataObj);
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// Create a bitmap for drag operations
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bool CreateDragImage(nsINode* aDOMNode,
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const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
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SHDRAGIMAGE* psdi);
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IDataObject* mDataObject = nullptr;
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bool mSentLocalDropEvent = false;
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};
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/**
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* Windows native nsIDragService implementation
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*/
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class nsDragService final : public nsBaseDragService {
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public:
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already_AddRefed<nsIDragSession> CreateDragSession() override;
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};
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#endif // nsDragService_h__
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