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| 1 // Copyright 2015 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. |
| 4 |
| 5 #ifndef CONTENT_RENDERER_IMAGE_DOWNLOADER_IMAGE_DOWNLOADER_IMPL_H_ |
| 6 #define CONTENT_RENDERER_IMAGE_DOWNLOADER_IMAGE_DOWNLOADER_IMPL_H_ |
| 7 |
| 8 #include <vector> |
| 9 |
| 10 #include "base/memory/scoped_vector.h" |
| 11 #include "content/common/image_downloader/image_downloader.mojom.h" |
| 12 #include "content/public/renderer/render_frame_observer.h" |
| 13 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h" |
| 14 #include "url/gurl.h" |
| 15 |
| 16 class SkBitmap; |
| 17 |
| 18 namespace gfx { |
| 19 class Size; |
| 20 } |
| 21 |
| 22 namespace content { |
| 23 |
| 24 class MultiResolutionImageResourceFetcher; |
| 25 class RenderFrame; |
| 26 |
| 27 class ImageDownloaderImpl : public image_downloader::ImageDownloader, |
| 28 public RenderFrameObserver { |
| 29 public: |
| 30 static void CreateMojoService( |
| 31 RenderFrame* render_frame, |
| 32 mojo::InterfaceRequest<image_downloader::ImageDownloader> request); |
| 33 |
| 34 private: |
| 35 ImageDownloaderImpl( |
| 36 RenderFrame* render_frame, |
| 37 mojo::InterfaceRequest<image_downloader::ImageDownloader> request); |
| 38 ~ImageDownloaderImpl() override; |
| 39 |
| 40 // ImageDownloader methods: |
| 41 void DownloadImage(image_downloader::DownloadRequestPtr req, |
| 42 const DownloadImageCallback& callback) override; |
| 43 |
| 44 // Requests to fetch an image. When done, the ImageDownloaderImpl |
| 45 // is notified by way of DidFetchImage. Returns true if the |
| 46 // request was successfully started, false otherwise. |
| 47 // If the image is a favicon, cookies will not be |
| 48 // sent nor accepted during download. If the image has multiple frames, all |
| 49 // the frames whose size <= |max_image_size| are returned. If all of the |
| 50 // frames are larger than |max_image_size|, the smallest frame is resized to |
| 51 // |max_image_size| and is the only result. |max_image_size| == 0 is |
| 52 // interpreted as no max image size. |
| 53 bool FetchImage(const GURL& image_url, |
| 54 bool is_favicon, |
| 55 uint32_t max_image_size, |
| 56 bool bypass_cache, |
| 57 const DownloadImageCallback& callback); |
| 58 |
| 59 // This callback is triggered when FetchImage completes, either |
| 60 // succesfully or with a failure. See FetchImage for more |
| 61 // details. |
| 62 void DidFetchImage(uint32_t max_image_size, |
| 63 const DownloadImageCallback& callback, |
| 64 MultiResolutionImageResourceFetcher* fetcher, |
| 65 const std::vector<SkBitmap>& images); |
| 66 |
| 67 // Reply download result |
| 68 void ReplyDownloadResult( |
| 69 int32_t http_status_code, |
| 70 const std::vector<SkBitmap>& result_images, |
| 71 const std::vector<gfx::Size>& result_original_image_sizes, |
| 72 const DownloadImageCallback& callback); |
| 73 |
| 74 // We use StrongBinding to ensure deletion of "this" when connection closed |
| 75 mojo::StrongBinding<ImageDownloader> binding_; |
| 76 |
| 77 typedef ScopedVector<MultiResolutionImageResourceFetcher> |
| 78 ImageResourceFetcherList; |
| 79 |
| 80 // ImageResourceFetchers schedule via FetchImage. |
| 81 ImageResourceFetcherList image_fetchers_; |
| 82 |
| 83 DISALLOW_COPY_AND_ASSIGN(ImageDownloaderImpl); |
| 84 }; |
| 85 |
| 86 } // namespace content |
| 87 |
| 88 #endif // CONTENT_RENDERER_IMAGE_DOWNLOADER_IMAGE_DOWNLOADER_IMPL_H_ |
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