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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 "nsChildView.h"
#include <Cocoa/Cocoa.h>
class nsDragService : public nsBaseDragService {
public:
nsDragService();
// nsBaseDragService
MOZ_CAN_RUN_SCRIPT virtual nsresult InvokeDragSessionImpl(
nsIArray* anArrayTransferables, const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
uint32_t aActionType) override;
// nsIDragService
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;
// nsIDragSession
NS_IMETHOD GetData(nsITransferable* aTransferable, uint32_t aItemIndex) override;
NS_IMETHOD IsDataFlavorSupported(const char* aDataFlavor, bool* _retval) override;
NS_IMETHOD GetNumDropItems(uint32_t* aNumItems) override;
void DragMovedWithView(NSDraggingSession* aSession, NSPoint aPoint);
protected:
virtual ~nsDragService();
private:
// Creates and returns the drag image for a drag. aImagePoint will be set to
// the origin of the drag relative to mNativeDragView.
NSImage* ConstructDragImage(nsINode* aDOMNode,
const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
NSPoint* aImagePoint);
// Creates and returns the drag image for a drag. aPoint should be the origin
// of the drag, for example the mouse coordinate of the mousedown event.
// aDragRect will be set the area of the drag relative to this.
NSImage* ConstructDragImage(nsINode* aDOMNode,
const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
mozilla::CSSIntPoint aPoint, mozilla::LayoutDeviceIntRect* aDragRect);
nsCOMPtr<nsIArray> mDataItems; // only valid for a drag started within gecko
ChildView* mNativeDragView;
NSEvent* mNativeDragEvent;
bool mDragImageChanged;
};
#endif // nsDragService_h_
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