image/src/ImageFactory.h@6474c204b198
image/src/ImageFactory.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
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/. */
7 #ifndef MOZILLA_IMAGELIB_IMAGEFACTORY_H_
8 #define MOZILLA_IMAGELIB_IMAGEFACTORY_H_
10 #include "nsCOMPtr.h"
11 #include "nsProxyRelease.h"
13 class nsCString;
14 class nsIRequest;
15 class imgStatusTracker;
17 namespace mozilla {
18 namespace image {
20 class Image;
21 class ImageURL;
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();
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);
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);
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);
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);
80 // This is a static factory class, so disallow instantiation.
81 virtual ~ImageFactory() = 0;
82 };
84 } // namespace image
85 } // namespace mozilla
87 #endif // MOZILLA_IMAGELIB_IMAGEFACTORY_H_
