| // Copyright 2014 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 MEDIA_BLINK_CDM_RESULT_PROMISE_H_ |
| #define MEDIA_BLINK_CDM_RESULT_PROMISE_H_ |
| |
| #include <stdint.h> |
| |
| #include "base/macros.h" |
| #include "media/blink/cdm_result_promise_helper.h" |
| #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h" |
| #include "third_party/WebKit/public/platform/WebString.h" |
| |
| namespace media { |
| |
| // Used to convert a WebContentDecryptionModuleResult into a CdmPromiseTemplate |
| // so that it can be passed through Chromium. When resolve(T) is called, the |
| // appropriate complete...() method on WebContentDecryptionModuleResult will be |
| // invoked. If reject() is called instead, |
| // WebContentDecryptionModuleResult::completeWithError() is called. |
| // If constructed with a |uma_name|, CdmResultPromise will report the promise |
| // result (success or rejection code) to UMA. |
| template <typename... T> |
| class CdmResultPromise : public CdmPromiseTemplate<T...> { |
| public: |
| CdmResultPromise(const blink::WebContentDecryptionModuleResult& result, |
| const std::string& uma_name); |
| ~CdmResultPromise() override; |
| |
| // CdmPromiseTemplate<T> implementation. |
| void resolve(const T&... result) override; |
| void reject(CdmPromise::Exception exception_code, |
| uint32_t system_code, |
| const std::string& error_message) override; |
| |
| private: |
| using CdmPromiseTemplate<T...>::IsPromiseSettled; |
| using CdmPromiseTemplate<T...>::MarkPromiseSettled; |
| using CdmPromiseTemplate<T...>::RejectPromiseOnDestruction; |
| |
| blink::WebContentDecryptionModuleResult web_cdm_result_; |
| |
| // UMA name to report result to. |
| std::string uma_name_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CdmResultPromise); |
| }; |
| |
| template <typename... T> |
| CdmResultPromise<T...>::CdmResultPromise( |
| const blink::WebContentDecryptionModuleResult& result, |
| const std::string& uma_name) |
| : web_cdm_result_(result), uma_name_(uma_name) { |
| } |
| |
| template <typename... T> |
| CdmResultPromise<T...>::~CdmResultPromise() { |
| if (!IsPromiseSettled()) |
| RejectPromiseOnDestruction(); |
| } |
| |
| // "inline" is needed to prevent multiple definition error. |
| |
| template <> |
| inline void CdmResultPromise<>::resolve() { |
| MarkPromiseSettled(); |
| ReportCdmResultUMA(uma_name_, SUCCESS); |
| web_cdm_result_.complete(); |
| } |
| |
| template <typename... T> |
| void CdmResultPromise<T...>::reject(CdmPromise::Exception exception_code, |
| uint32_t system_code, |
| const std::string& error_message) { |
| MarkPromiseSettled(); |
| ReportCdmResultUMA(uma_name_, |
| ConvertCdmExceptionToResultForUMA(exception_code)); |
| web_cdm_result_.completeWithError(ConvertCdmException(exception_code), |
| system_code, |
| blink::WebString::fromUTF8(error_message)); |
| } |
| |
| } // namespace media |
| |
| #endif // MEDIA_BLINK_CDM_RESULT_PROMISE_H_ |