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. 4 5 #ifndef WEBKIT_GLUE_IMAGE_RESOURCE_FETCHER_H_ 6 #define WEBKIT_GLUE_IMAGE_RESOURCE_FETCHER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/callback.h" 10 #include "webkit/glue/resource_fetcher.h" 11 12 class SkBitmap; 13 14 namespace webkit_glue { 15 16 // ImageResourceFetcher handles downloading an image for a webview. Once 17 // downloading is done the supplied callback is notified. ImageResourceFetcher 18 // is used to download the favicon and images for web apps. 19 class ImageResourceFetcher { 20 public: 21 typedef Callback2<ImageResourceFetcher*, const SkBitmap&>::Type Callback; 22 23 ImageResourceFetcher(const GURL& image_url, 24 WebKit::WebFrame* frame, 25 int id, 26 int image_size, 27 WebKit::WebURLRequest::TargetType target_type, 28 Callback* callback); 29 30 virtual ~ImageResourceFetcher(); 31 32 // URL of the image we're downloading. image_url()33 const GURL& image_url() const { return image_url_; } 34 35 // Unique identifier for the request. id()36 int id() const { return id_; } 37 38 private: 39 // ResourceFetcher::Callback. Decodes the image and invokes callback_. 40 void OnURLFetchComplete(const WebKit::WebURLResponse& response, 41 const std::string& data); 42 43 scoped_ptr<Callback> callback_; 44 45 // Unique identifier for the request. 46 const int id_; 47 48 // URL of the image. 49 const GURL image_url_; 50 51 // The size of the image. This is only a hint that is used if the image 52 // contains multiple sizes. A value of 0 results in using the first frame 53 // of the image. 54 const int image_size_; 55 56 // Does the actual download. 57 scoped_ptr<ResourceFetcher> fetcher_; 58 59 DISALLOW_COPY_AND_ASSIGN(ImageResourceFetcher); 60 }; 61 62 } // namespace webkit_glue 63 64 #endif // WEBKIT_GLUE_IMAGE_RESOURCE_FETCHER_H_ 65