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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/icon_decode_request.h"
#include <memory>
#include <utility>
#include <vector>
#include "base/no_destructor.h"
#include "base/trace_event/trace_event.h"
#include "chrome/grit/component_extension_resources.h"
#include "content/public/browser/browser_thread.h"
#include "services/data_decoder/public/cpp/data_decoder.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_operations.h"
#include "ui/gfx/image/image_skia_rep.h"
#include "ui/gfx/image/image_skia_source.h"
using content::BrowserThread;
namespace arc {
namespace {
bool disable_safe_decoding_for_testing = false;
class IconSource : public gfx::ImageSkiaSource {
public:
IconSource(const SkBitmap& bitmap, int dimension_dip);
IconSource(const IconSource&) = delete;
IconSource& operator=(const IconSource&) = delete;
~IconSource() override = default;
private:
gfx::ImageSkiaRep GetImageForScale(float scale) override;
const SkBitmap bitmap_;
const int dimension_dip_;
};
IconSource::IconSource(const SkBitmap& bitmap, int dimension_dip)
: bitmap_(bitmap), dimension_dip_(dimension_dip) {}
gfx::ImageSkiaRep IconSource::GetImageForScale(float scale) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
const int dimension_px = static_cast<int>(dimension_dip_ * scale + 0.5);
if (bitmap_.isNull()) {
const int resource_id = dimension_px <= 32 ? IDR_ARC_SUPPORT_ICON_32_PNG
: IDR_ARC_SUPPORT_ICON_192_PNG;
const gfx::ImageSkia* resource_image =
ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id);
const gfx::ImageSkia resized_image =
gfx::ImageSkiaOperations::CreateResizedImage(
*resource_image, skia::ImageOperations::RESIZE_LANCZOS3,
gfx::Size(dimension_dip_, dimension_dip_));
return resized_image.GetRepresentation(scale);
}
SkBitmap resized_bitmap = skia::ImageOperations::Resize(
bitmap_, skia::ImageOperations::RESIZE_LANCZOS3, dimension_px,
dimension_px);
return gfx::ImageSkiaRep(resized_bitmap, scale);
}
data_decoder::DataDecoder& GetDataDecoder() {
static base::NoDestructor<data_decoder::DataDecoder> data_decoder;
return *data_decoder;
}
} // namespace
// static
void IconDecodeRequest::DisableSafeDecodingForTesting() {
disable_safe_decoding_for_testing = true;
}
IconDecodeRequest::IconDecodeRequest(SetIconCallback set_icon_callback,
int dimension_dip)
: ImageRequest(&GetDataDecoder()),
set_icon_callback_(std::move(set_icon_callback)),
dimension_dip_(dimension_dip) {}
IconDecodeRequest::~IconDecodeRequest() = default;
void IconDecodeRequest::StartWithOptions(
const std::vector<uint8_t>& image_data) {
TRACE_EVENT0("ui", "IconDecodeRequest::StartWithOptions");
if (disable_safe_decoding_for_testing) {
if (image_data.empty()) {
OnDecodeImageFailed();
return;
}
SkBitmap bitmap = gfx::PNGCodec::Decode(image_data);
if (bitmap.isNull()) {
OnDecodeImageFailed();
return;
}
OnImageDecoded(bitmap);
return;
}
ImageDecoder::StartWithOptions(this, image_data, ImageDecoder::DEFAULT_CODEC,
true, gfx::Size());
}
void IconDecodeRequest::OnImageDecoded(const SkBitmap& bitmap) {
TRACE_EVENT0("ui", "IconDecodeRequest::OnImageDecoded");
DCHECK_CURRENTLY_ON(BrowserThread::UI);
const gfx::ImageSkia icon(
std::make_unique<IconSource>(bitmap, dimension_dip_),
gfx::Size(dimension_dip_, dimension_dip_));
icon.EnsureRepsForSupportedScales();
std::move(set_icon_callback_).Run(icon);
}
void IconDecodeRequest::OnDecodeImageFailed() {
TRACE_EVENT0("ui", "IconDecodeRequest::OnDecodeImageFailed");
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DLOG(ERROR) << "Failed to decode an icon image.";
OnImageDecoded(SkBitmap());
}
} // namespace arc
|
