gecko-dev/widget/cocoa/nsDragService.h

73 строки
2.6 KiB
C++

/* -*- 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>
extern NSString* const kWildcardPboardType;
extern NSString* const kCorePboardType_url;
extern NSString* const kCorePboardType_urld;
extern NSString* const kCorePboardType_urln;
extern NSString* const kCustomTypesPboardType;
class nsDragService : public nsBaseDragService
{
public:
nsDragService();
// nsBaseDragService
virtual nsresult InvokeDragSessionImpl(nsIArray* anArrayTransferables,
nsIScriptableRegion* aRegion,
uint32_t aActionType);
// nsIDragService
NS_IMETHOD EndDragSession(bool aDoneDrag);
NS_IMETHOD UpdateDragImage(nsIDOMNode* aImage, int32_t aImageX, int32_t aImageY);
// nsIDragSession
NS_IMETHOD GetData(nsITransferable * aTransferable, uint32_t aItemIndex);
NS_IMETHOD IsDataFlavorSupported(const char *aDataFlavor, bool *_retval);
NS_IMETHOD GetNumDropItems(uint32_t * aNumItems);
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(nsIDOMNode* aDOMNode,
nsIScriptableRegion* 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(nsIDOMNode* aDOMNode,
nsIScriptableRegion* aRegion,
mozilla::CSSIntPoint aPoint,
mozilla::LayoutDeviceIntRect* aDragRect);
bool IsValidType(NSString* availableType, bool allowFileURL);
NSString* GetStringForType(NSPasteboardItem* item, const NSString* type,
bool allowFileURL = false);
NSString* GetTitleForURL(NSPasteboardItem* item);
NSString* GetFilePath(NSPasteboardItem* item);
nsCOMPtr<nsIArray> mDataItems; // only valid for a drag started within gecko
ChildView* mNativeDragView;
NSEvent* mNativeDragEvent;
bool mDragImageChanged;
};
#endif // nsDragService_h_