1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "content/renderer/fetchers/image_resource_fetcher.h"
8 #include "base/bind_helpers.h"
9 #include "base/debug/crash_logging.h"
10 #include "content/child/image_decoder.h"
11 #include "content/public/renderer/resource_fetcher.h"
12 #include "third_party/WebKit/public/platform/WebURLResponse.h"
13 #include "third_party/WebKit/public/web/WebFrame.h"
14 #include "third_party/skia/include/core/SkBitmap.h"
15 #include "ui/gfx/size.h"
17 using blink::WebFrame;
18 using blink::WebURLRequest;
19 using blink::WebURLResponse;
23 ImageResourceFetcher::ImageResourceFetcher(
24 const GURL& image_url,
28 WebURLRequest::TargetType target_type,
29 const Callback& callback)
30 : callback_(callback),
32 image_url_(image_url),
33 image_size_(image_size) {
34 fetcher_.reset(ResourceFetcher::Create(image_url));
35 fetcher_->Start(frame, target_type,
36 base::Bind(&ImageResourceFetcher::OnURLFetchComplete,
37 base::Unretained(this)));
39 // Set subresource URL for crash reporting.
40 base::debug::SetCrashKeyValue("subresource_url", image_url.spec());
43 ImageResourceFetcher::~ImageResourceFetcher() {
46 void ImageResourceFetcher::OnURLFetchComplete(
47 const WebURLResponse& response,
48 const std::string& data) {
50 if (!response.isNull() && response.httpStatusCode() == 200) {
51 // Request succeeded, try to convert it to an image.
52 ImageDecoder decoder(gfx::Size(image_size_, image_size_));
53 bitmap = decoder.Decode(
54 reinterpret_cast<const unsigned char*>(data.data()), data.size());
56 // If we get here, it means no image from server or couldn't decode the
57 // response as an image. The delegate will see a null image, indicating
58 // that an error occurred.
60 // Take a reference to the callback as running the callback may lead to our
62 Callback callback = callback_;
63 callback.Run(this, bitmap);
66 } // namespace content