| // Copyright 2016 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 NotificationImageLoader_h |
| #define NotificationImageLoader_h |
| |
| #include "core/loader/ThreadableLoader.h" |
| #include "core/loader/ThreadableLoaderClient.h" |
| #include "platform/SharedBuffer.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Functional.h" |
| #include "wtf/OwnPtr.h" |
| #include "wtf/PassOwnPtr.h" |
| #include "wtf/RefPtr.h" |
| |
| class SkBitmap; |
| |
| namespace blink { |
| |
| class ExecutionContext; |
| class KURL; |
| class ResourceError; |
| |
| // Asynchronously downloads an image when given a url, decodes the loaded data, |
| // and passes the bitmap to the given callback. |
| class NotificationImageLoader final : public GarbageCollectedFinalized<NotificationImageLoader>, public ThreadableLoaderClient { |
| public: |
| // The bitmap may be empty if the request failed or the image data could not |
| // be decoded. |
| using ImageCallback = Function<void(const SkBitmap&)>; |
| |
| NotificationImageLoader(); |
| ~NotificationImageLoader() override; |
| |
| // Asynchronously downloads an image from the given url, decodes the loaded |
| // data, and passes the bitmap to the callback. |
| void start(ExecutionContext*, const KURL&, PassOwnPtr<ImageCallback>); |
| |
| // Cancels the pending load, if there is one. The |m_imageCallback| will not |
| // be run. |
| void stop(); |
| |
| // ThreadableLoaderClient interface. |
| void didReceiveData(const char* data, unsigned length) override; |
| void didFinishLoading(unsigned long resourceIdentifier, double finishTime) override; |
| void didFail(const ResourceError&) override; |
| void didFailRedirectCheck() override; |
| |
| DEFINE_INLINE_TRACE() {} |
| |
| private: |
| void runCallbackWithEmptyBitmap(); |
| |
| bool m_stopped; |
| double m_startTime; |
| RefPtr<SharedBuffer> m_data; |
| OwnPtr<ImageCallback> m_imageCallback; |
| OwnPtr<ThreadableLoader> m_threadableLoader; |
| }; |
| |
| } // namespace blink |
| |
| #endif // NotificationImageLoader_h |