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comparison: image/src/ImageFactory.h
image/src/ImageFactory.h
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef MOZILLA_IMAGELIB_IMAGEFACTORY_H_ | |
| 8 #define MOZILLA_IMAGELIB_IMAGEFACTORY_H_ | |
| 9 | |
| 10 #include "nsCOMPtr.h" | |
| 11 #include "nsProxyRelease.h" | |
| 12 | |
| 13 class nsCString; | |
| 14 class nsIRequest; | |
| 15 class imgStatusTracker; | |
| 16 | |
| 17 namespace mozilla { | |
| 18 namespace image { | |
| 19 | |
| 20 class Image; | |
| 21 class ImageURL; | |
| 22 | |
| 23 class ImageFactory | |
| 24 { | |
| 25 public: | |
| 26 /** | |
| 27 * Registers vars with Preferences. Should only be called on the main thread. | |
| 28 */ | |
| 29 static void Initialize(); | |
| 30 | |
| 31 /** | |
| 32 * Determines whether it's safe to retarget OnDataAvailable for an image. | |
| 33 * | |
| 34 * @param aURI The URI of the image. | |
| 35 * @param aIsMultipart Whether the image is part of a multipart request. | |
| 36 */ | |
| 37 static bool CanRetargetOnDataAvailable(ImageURL* aURI, bool aIsMultiPart); | |
| 38 | |
| 39 /** | |
| 40 * Creates a new image with the given properties. | |
| 41 * Can be called on or off the main thread. | |
| 42 * | |
| 43 * @param aRequest The associated request. | |
| 44 * @param aStatusTracker A status tracker for the image to use. | |
| 45 * @param aMimeType The mimetype of the image. | |
| 46 * @param aURI The URI of the image. | |
| 47 * @param aIsMultiPart Whether the image is part of a multipart request. | |
| 48 * @param aInnerWindowId The window this image belongs to. | |
| 49 */ | |
| 50 static already_AddRefed<Image> CreateImage(nsIRequest* aRequest, | |
| 51 imgStatusTracker* aStatusTracker, | |
| 52 const nsCString& aMimeType, | |
| 53 ImageURL* aURI, | |
| 54 bool aIsMultiPart, | |
| 55 uint32_t aInnerWindowId); | |
| 56 /** | |
| 57 * Creates a new image which isn't associated with a URI or loaded through | |
| 58 * the usual image loading mechanism. | |
| 59 * | |
| 60 * @param aMimeType The mimetype of the image. | |
| 61 */ | |
| 62 static already_AddRefed<Image> CreateAnonymousImage(const nsCString& aMimeType); | |
| 63 | |
| 64 private: | |
| 65 // Factory functions that create specific types of image containers. | |
| 66 static already_AddRefed<Image> CreateRasterImage(nsIRequest* aRequest, | |
| 67 imgStatusTracker* aStatusTracker, | |
| 68 const nsCString& aMimeType, | |
| 69 ImageURL* aURI, | |
| 70 uint32_t aImageFlags, | |
| 71 uint32_t aInnerWindowId); | |
| 72 | |
| 73 static already_AddRefed<Image> CreateVectorImage(nsIRequest* aRequest, | |
| 74 imgStatusTracker* aStatusTracker, | |
| 75 const nsCString& aMimeType, | |
| 76 ImageURL* aURI, | |
| 77 uint32_t aImageFlags, | |
| 78 uint32_t aInnerWindowId); | |
| 79 | |
| 80 // This is a static factory class, so disallow instantiation. | |
| 81 virtual ~ImageFactory() = 0; | |
| 82 }; | |
| 83 | |
| 84 } // namespace image | |
| 85 } // namespace mozilla | |
| 86 | |
| 87 #endif // MOZILLA_IMAGELIB_IMAGEFACTORY_H_ |
