| // Copyright (c) 2012 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/multi_resolution_image_resource_fetcher.h" |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "content/child/image_decoder.h" |
| #include "content/public/renderer/associated_resource_fetcher.h" |
| #include "third_party/WebKit/public/platform/WebURLResponse.h" |
| #include "third_party/WebKit/public/web/WebAssociatedURLLoaderOptions.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::WebAssociatedURLLoaderOptions; |
| using blink::WebURLRequest; |
| using blink::WebURLResponse; |
| |
| namespace content { |
| |
| MultiResolutionImageResourceFetcher::MultiResolutionImageResourceFetcher( |
| const GURL& image_url, |
| WebFrame* frame, |
| int id, |
| WebURLRequest::RequestContext request_context, |
| blink::WebCachePolicy cache_policy, |
| const Callback& callback) |
| : callback_(callback), |
| id_(id), |
| http_status_code_(0), |
| image_url_(image_url) { |
| fetcher_.reset(AssociatedResourceFetcher::Create(image_url)); |
| |
| WebAssociatedURLLoaderOptions options; |
| options.fetch_credentials_mode = WebURLRequest::kFetchCredentialsModeInclude; |
| options.fetch_request_mode = WebURLRequest::kFetchRequestModeNoCORS; |
| fetcher_->SetLoaderOptions(options); |
| |
| // To prevent cache tainting, the favicon requests have to by-pass the service |
| // workers. This should ideally not happen or at least not all the time. |
| // See https://crbug.com/448427 |
| if (request_context == WebURLRequest::kRequestContextFavicon) |
| fetcher_->SetServiceWorkerMode(WebURLRequest::ServiceWorkerMode::kNone); |
| |
| fetcher_->SetCachePolicy(cache_policy); |
| |
| fetcher_->Start( |
| frame, request_context, WebURLRequest::kFrameTypeNone, |
| base::Bind(&MultiResolutionImageResourceFetcher::OnURLFetchComplete, |
| base::Unretained(this))); |
| } |
| |
| MultiResolutionImageResourceFetcher::~MultiResolutionImageResourceFetcher() { |
| } |
| |
| void MultiResolutionImageResourceFetcher::OnURLFetchComplete( |
| const WebURLResponse& response, |
| const std::string& data) { |
| std::vector<SkBitmap> bitmaps; |
| if (!response.IsNull()) { |
| http_status_code_ = response.HttpStatusCode(); |
| GURL url(response.Url()); |
| if (http_status_code_ == 200 || url.SchemeIsFile()) { |
| // Request succeeded, try to convert it to an image. |
| bitmaps = ImageDecoder::DecodeAll( |
| 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 an empty vector. |
| |
| // Take a reference to the callback as running the callback may lead to our |
| // destruction. |
| Callback callback = callback_; |
| callback.Run(this, bitmaps); |
| } |
| |
| void MultiResolutionImageResourceFetcher::OnRenderFrameDestruct() { |
| // Take a reference to the callback as running the callback may lead to our |
| // destruction. |
| Callback callback = callback_; |
| callback.Run(this, std::vector<SkBitmap>()); |
| } |
| |
| } // namespace content |