Index: components/image_fetcher/ios/ios_image_data_fetcher_wrapper.h |
diff --git a/components/image_fetcher/ios/ios_image_data_fetcher_wrapper.h b/components/image_fetcher/ios/ios_image_data_fetcher_wrapper.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ad1e9e997e72e28f26d34f27bc25656fc627a628 |
--- /dev/null |
+++ b/components/image_fetcher/ios/ios_image_data_fetcher_wrapper.h |
@@ -0,0 +1,60 @@ |
+// Copyright 2017 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. |
+ |
+#ifndef COMPONENTS_IMAGE_FETCHER_IOS_IOS_IMAGE_DATA_FETCHER_WRAPPER_H_ |
+#define COMPONENTS_IMAGE_FETCHER_IOS_IOS_IMAGE_DATA_FETCHER_WRAPPER_H_ |
+ |
+#import <Foundation/Foundation.h> |
+ |
+#include "base/memory/ref_counted.h" |
+#include "components/data_use_measurement/core/data_use_user_data.h" |
+#include "components/image_fetcher/image_data_fetcher.h" |
+ |
+namespace base { |
+class TaskRunner; |
+} |
+ |
+namespace net { |
+class URLRequestContextGetter; |
+} |
+ |
+class GURL; |
+ |
+namespace image_fetcher { |
+ |
+// Callback that informs of the download of an image encoded in |data|. |
+using IOSImageDataFetcherCallback = void (^)(NSData* data); |
+ |
+class IOSImageDataFetcherWrapper { |
+ public: |
+ using DataUseServiceName = data_use_measurement::DataUseUserData::ServiceName; |
+ |
+ // The TaskRunner is used to decode the image if it is WebP-encoded. |
+ IOSImageDataFetcherWrapper( |
+ net::URLRequestContextGetter* url_request_context_getter, |
+ const scoped_refptr<base::TaskRunner>& task_runner); |
+ virtual ~IOSImageDataFetcherWrapper(); |
+ |
+ // Start downloading the image at the given |image_url|. The |callback| will |
+ // be called with the downloaded image, or nil if any error happened or the |
+ // http response header is not HTTP_OK (200). If the url is a data URL, the |
+ // http response header is considered to be HTTP_OK. |
+ // |callback| cannot be nil. |
+ virtual void FetchImageDataWebpDecoded(const GURL& image_url, |
+ IOSImageDataFetcherCallback callback); |
+ |
+ // Sets a service name against which to track data usage. |
+ void SetDataUseServiceName(DataUseServiceName data_use_service_name); |
+ |
+ private: |
+ // The task runner used to decode images if necessary. |
+ const scoped_refptr<base::TaskRunner> task_runner_; |
+ ImageDataFetcher image_data_fetcher_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(IOSImageDataFetcherWrapper); |
+}; |
+ |
+} // namespace image_fetcher |
+ |
+#endif // COMPONENTS_IMAGE_FETCHER_IOS_IOS_IMAGE_DATA_FETCHER_WRAPPER_H_ |