1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/* -*- 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 mozilla_image_ImageFactory_h
#define mozilla_image_ImageFactory_h
#include "nsCOMPtr.h"
#include "nsProxyRelease.h"
#include "nsStringFwd.h"
class nsIRequest;
class nsIURI;
namespace mozilla {
namespace image {
class Image;
class MultipartImage;
class ProgressTracker;
class ImageFactory {
public:
/**
* Registers vars with Preferences. Should only be called on the main thread.
*/
static void Initialize();
/**
* Creates a new image with the given properties.
* Can be called on or off the main thread.
*
* @param aRequest The associated request.
* @param aProgressTracker A status tracker for the image to use.
* @param aMimeType The mimetype of the image.
* @param aURI The URI of the image.
* @param aIsMultiPart Whether the image is part of a multipart request.
* @param aInnerWindowId The window this image belongs to.
*/
static already_AddRefed<Image> CreateImage(nsIRequest* aRequest,
ProgressTracker* aProgressTracker,
const nsCString& aMimeType,
nsIURI* aURI, bool aIsMultiPart,
uint64_t aInnerWindowId);
/**
* Creates a new image which isn't associated with a URI or loaded through
* the usual image loading mechanism.
*
* @param aMimeType The mimetype of the image.
* @param aSizeHint The length of the source data for the image.
*/
static already_AddRefed<Image> CreateAnonymousImage(
const nsCString& aMimeType, uint32_t aSizeHint = 0);
/**
* Creates a new multipart/x-mixed-replace image wrapper, and initializes it
* with the first part. Subsequent parts should be passed to the existing
* MultipartImage via MultipartImage::BeginTransitionToPart().
*
* @param aFirstPart An image containing the first part of the multipart
* stream.
* @param aProgressTracker A progress tracker for the multipart image.
*/
static already_AddRefed<MultipartImage> CreateMultipartImage(
Image* aFirstPart, ProgressTracker* aProgressTracker);
private:
// Factory functions that create specific types of image containers.
static already_AddRefed<Image> CreateRasterImage(
nsIRequest* aRequest, ProgressTracker* aProgressTracker,
const nsCString& aMimeType, nsIURI* aURI, uint32_t aImageFlags,
uint64_t aInnerWindowId);
static already_AddRefed<Image> CreateVectorImage(
nsIRequest* aRequest, ProgressTracker* aProgressTracker,
const nsCString& aMimeType, nsIURI* aURI, uint32_t aImageFlags,
uint64_t aInnerWindowId);
// This is a static factory class, so disallow instantiation.
virtual ~ImageFactory() = 0;
};
} // namespace image
} // namespace mozilla
#endif // mozilla_image_ImageFactory_h
|
