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
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/fetchers/image_resource_fetcher.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/debug/crash_logging.h"
#include "content/child/image_decoder.h"
#include "content/public/renderer/resource_fetcher.h"
#include "third_party/WebKit/public/platform/WebURLResponse.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/size.h"
using blink::WebFrame;
using blink::WebURLRequest;
using blink::WebURLResponse;
namespace content {
ImageResourceFetcher::ImageResourceFetcher(
const GURL& image_url,
WebFrame* frame,
int id,
int image_size,
WebURLRequest::RequestContext request_context,
const Callback& callback)
: callback_(callback),
id_(id),
image_url_(image_url),
image_size_(image_size) {
fetcher_.reset(ResourceFetcher::Create(image_url));
fetcher_->Start(frame,
request_context,
WebURLRequest::FrameTypeNone,
ResourceFetcher::PLATFORM_LOADER,
base::Bind(&ImageResourceFetcher::OnURLFetchComplete,
base::Unretained(this)));
// Set subresource URL for crash reporting.
base::debug::SetCrashKeyValue("subresource_url", image_url.spec());
}
ImageResourceFetcher::~ImageResourceFetcher() {
}
void ImageResourceFetcher::OnURLFetchComplete(
const WebURLResponse& response,
const std::string& data) {
SkBitmap bitmap;
if (!response.isNull() && response.httpStatusCode() == 200) {
// Request succeeded, try to convert it to an image.
ImageDecoder decoder(gfx::Size(image_size_, image_size_));
bitmap = decoder.Decode(
reinterpret_cast<const unsigned char*>(data.data()), data.size());
} // else case:
// If we get here, it means no image from server or couldn't decode the
// response as an image. The delegate will see a null image, indicating
// that an error occurred.
// Take a reference to the callback as running the callback may lead to our
// destruction.
Callback callback = callback_;
callback.Run(this, bitmap);
}
} // namespace content
|
