1 // Copyright (c) 2012 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/multi_resolution_image_resource_fetcher.h"
8 #include "base/bind_helpers.h"
9 #include "content/child/image_decoder.h"
10 #include "content/public/renderer/resource_fetcher.h"
11 #include "third_party/WebKit/public/platform/WebURLResponse.h"
12 #include "third_party/WebKit/public/web/WebFrame.h"
13 #include "third_party/skia/include/core/SkBitmap.h"
14 #include "ui/gfx/size.h"
16 using blink::WebFrame;
17 using blink::WebURLRequest;
18 using blink::WebURLResponse;
22 MultiResolutionImageResourceFetcher::MultiResolutionImageResourceFetcher(
23 const GURL& image_url,
26 WebURLRequest::TargetType target_type,
27 const Callback& callback)
28 : callback_(callback),
31 image_url_(image_url) {
32 fetcher_.reset(ResourceFetcher::Create(
33 image_url, frame, target_type,
34 base::Bind(&MultiResolutionImageResourceFetcher::OnURLFetchComplete,
35 base::Unretained(this))));
38 MultiResolutionImageResourceFetcher::~MultiResolutionImageResourceFetcher() {
41 void MultiResolutionImageResourceFetcher::OnURLFetchComplete(
42 const WebURLResponse& response,
43 const std::string& data) {
44 std::vector<SkBitmap> bitmaps;
45 if (!response.isNull()) {
46 http_status_code_ = response.httpStatusCode();
47 GURL url(response.url());
48 if (http_status_code_ == 200 || url.SchemeIsFile()) {
49 // Request succeeded, try to convert it to an image.
50 bitmaps = ImageDecoder::DecodeAll(
51 reinterpret_cast<const unsigned char*>(data.data()), data.size());
54 // If we get here, it means no image from server or couldn't decode the
55 // response as an image. The delegate will see an empty vector.
57 // Take a reference to the callback as running the callback may lead to our
59 Callback callback = callback_;
60 callback.Run(this, bitmaps);
63 } // namespace content