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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>
/**
* Cocoa native nsIDragSession implementation
*/
class nsDragSession : public nsBaseDragSession {
public:
// 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;
NS_IMETHOD UpdateDragImage(nsINode* aImage, int32_t aImageX,
int32_t aImageY) override;
NS_IMETHOD DragMoved(int32_t aX, int32_t aY) override;
NSDraggingSession* GetNSDraggingSession() { return mNSDraggingSession; }
MOZ_CAN_RUN_SCRIPT nsresult
EndDragSessionImpl(bool aDoneDrag, uint32_t aKeyModifiers) override;
protected:
// nsBaseDragSession
MOZ_CAN_RUN_SCRIPT virtual nsresult InvokeDragSessionImpl(
nsIWidget* aWidget, nsIArray* anArrayTransferables,
const mozilla::Maybe<mozilla::CSSIntRegion>& aRegion,
uint32_t aActionType) override;
// 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
// Native widget object that this drag is over.
ChildView* mNativeDragView = nil;
// The native drag session object for this drag.
NSDraggingSession* mNSDraggingSession = nil;
NSEvent* mNativeDragEvent = nil;
bool mDragImageChanged = false;
};
/**
* Cocoa native nsIDragService implementation
*/
class nsDragService final : public nsBaseDragService {
public:
already_AddRefed<nsIDragSession> CreateDragSession() override;
};
#endif // nsDragService_h_
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