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65 lines
2.0 KiB
C++
65 lines
2.0 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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/*
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* Retrieves and displays icons in native menu items on Mac OS X.
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*/
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#ifndef nsIconLoaderService_h_
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#define nsIconLoaderService_h_
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#include "imgINotificationObserver.h"
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#include "mozilla/RefPtr.h"
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#include "nsCOMPtr.h"
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#include "nsIconLoaderObserver.h"
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#include "nsIContentPolicy.h"
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class nsIURI;
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class nsIContent;
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class nsIPrincipal;
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class imgRequestProxy;
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class nsIconLoaderService : public imgINotificationObserver {
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public:
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// If aScaleFactor is not specified, then an image with both regular and
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// HiDPI representations will be loaded.
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nsIconLoaderService(nsIContent* aContent, nsIntRect* aImageRegionRect,
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RefPtr<nsIconLoaderObserver> aObserver, uint32_t aIconHeight,
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uint32_t aIconWidth, CGFloat aScaleFactor = 0.0f);
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_IMGINOTIFICATIONOBSERVER
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// LoadIcon will set a placeholder image and start a load request for the
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// icon. The request may not complete until after LoadIcon returns.
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nsresult LoadIcon(nsIURI* aIconURI);
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// Unless we take precautions, we may outlive the object that created us
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// (mMenuObject, which owns our native menu item (mNativeMenuItem)).
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// Destroy() should be called from mMenuObject's destructor to prevent
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// this from happening. See bug 499600.
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void Destroy();
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protected:
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virtual ~nsIconLoaderService();
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private:
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nsresult OnFrameComplete(imgIRequest* aRequest);
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nsCOMPtr<nsIContent> mContent;
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nsContentPolicyType mContentType;
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RefPtr<imgRequestProxy> mIconRequest;
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nsIntRect* mImageRegionRect;
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bool mLoadedIcon;
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NSImage* mNativeIconImage;
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uint32_t mIconHeight;
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uint32_t mIconWidth;
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CGFloat mScaleFactor;
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RefPtr<nsIconLoaderObserver> mCompletionHandler;
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};
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#endif // nsIconLoaderService_h_
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