gecko-dev/widget/cocoa/nsIconLoaderService.h

66 строки
1.9 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/. */
/*
* Retrieves and displays icons in native menu items on Mac OS X.
*/
#ifndef nsIconLoaderService_h_
#define nsIconLoaderService_h_
#include "imgINotificationObserver.h"
#include "mozilla/RefPtr.h"
#include "nsCOMPtr.h"
#include "nsIconLoaderObserver.h"
#include "nsIContentPolicy.h"
class nsIURI;
class nsINode;
class nsIPrincipal;
class imgRequestProxy;
class nsIconLoaderService : public imgINotificationObserver {
public:
// If aScaleFactor is not specified, then an image with both regular and
// HiDPI representations will be loaded.
nsIconLoaderService(nsINode* aContent, nsIntRect* aImageRegionRect,
RefPtr<nsIconLoaderObserver> aObserver, uint32_t aIconHeight,
uint32_t aIconWidth, CGFloat aScaleFactor = 0.0f);
public:
NS_DECL_ISUPPORTS
NS_DECL_IMGINOTIFICATIONOBSERVER
// LoadIcon will start a load request for the icon.
// The request may not complete until after LoadIcon returns.
// If aIsInternalIcon is true, the document and principal will not be
// used when loading.
nsresult LoadIcon(nsIURI* aIconURI, bool aIsInternalIcon);
NSImage* GetNativeIconImage();
void ReleaseJSObjects() { mContent = nil; }
void Destroy();
protected:
virtual ~nsIconLoaderService();
private:
nsresult OnFrameComplete(imgIRequest* aRequest);
nsCOMPtr<nsINode> mContent;
nsContentPolicyType mContentType;
RefPtr<imgRequestProxy> mIconRequest;
nsIntRect* mImageRegionRect;
bool mLoadedIcon;
NSImage* mNativeIconImage;
uint32_t mIconHeight;
uint32_t mIconWidth;
CGFloat mScaleFactor;
RefPtr<nsIconLoaderObserver> mCompletionHandler;
};
#endif // nsIconLoaderService_h_