src/content/renderer/media/cdm_result_promise.cc

   1 // Copyright 2014 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 #include "content/renderer/media/cdm_result_promise.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "third_party/WebKit/public/platform/WebString.h"
  10
  11 namespace content {
  12
  13 static blink::WebContentDecryptionModuleException ConvertException(
  14     media::MediaKeys::Exception exception_code) {
  15   switch (exception_code) {
  16     case media::MediaKeys::NOT_SUPPORTED_ERROR:
  17       return blink::WebContentDecryptionModuleExceptionNotSupportedError;
  18     case media::MediaKeys::INVALID_STATE_ERROR:
  19       return blink::WebContentDecryptionModuleExceptionInvalidStateError;
  20     case media::MediaKeys::INVALID_ACCESS_ERROR:
  21       return blink::WebContentDecryptionModuleExceptionInvalidAccessError;
  22     case media::MediaKeys::QUOTA_EXCEEDED_ERROR:
  23       return blink::WebContentDecryptionModuleExceptionQuotaExceededError;
  24     case media::MediaKeys::UNKNOWN_ERROR:
  25       return blink::WebContentDecryptionModuleExceptionUnknownError;
  26     case media::MediaKeys::CLIENT_ERROR:
  27       return blink::WebContentDecryptionModuleExceptionClientError;
  28     case media::MediaKeys::OUTPUT_ERROR:
  29       return blink::WebContentDecryptionModuleExceptionOutputError;
  30     default:
  31       NOTREACHED();
  32       return blink::WebContentDecryptionModuleExceptionUnknownError;
  33   }
  34 }
  35
  36 template <typename T>
  37 CdmResultPromise<T>::CdmResultPromise(
  38     const blink::WebContentDecryptionModuleResult& result)
  39     : media::CdmPromiseTemplate<T>(
  40           base::Bind(&CdmResultPromise::OnResolve, base::Unretained(this)),
  41           base::Bind(&CdmResultPromise::OnReject, base::Unretained(this))),
  42       web_cdm_result_(result) {
  43 }
  44
  45 template <typename T>
  46 CdmResultPromise<T>::CdmResultPromise(
  47     const blink::WebContentDecryptionModuleResult& result,
  48     const std::string& uma_name)
  49     : media::CdmPromiseTemplate<T>(
  50           base::Bind(&CdmResultPromise::OnResolve, base::Unretained(this)),
  51           base::Bind(&CdmResultPromise::OnReject, base::Unretained(this)),
  52           uma_name),
  53       web_cdm_result_(result) {
  54 }
  55
  56 template <typename T>
  57 CdmResultPromise<T>::~CdmResultPromise() {
  58 }
  59
  60 template <>
  61 void CdmResultPromise<std::string>::OnResolve(const std::string& result) {
  62   // This must be overridden in a subclass.
  63   NOTREACHED();
  64 }
  65
  66 template <>
  67 void CdmResultPromise<media::KeyIdsVector>::OnResolve(
  68     const media::KeyIdsVector& result) {
  69   // TODO(jrummell): Update blink::WebContentDecryptionModuleResult to
  70   // handle the set of keys.
  71   OnReject(media::MediaKeys::NOT_SUPPORTED_ERROR, 0, "Not implemented.");
  72 }
  73
  74 template <typename T>
  75 void CdmResultPromise<T>::OnReject(media::MediaKeys::Exception exception_code,
  76                                    uint32 system_code,
  77                                    const std::string& error_message) {
  78   web_cdm_result_.completeWithError(ConvertException(exception_code),
  79                                     system_code,
  80                                     blink::WebString::fromUTF8(error_message));
  81 }
  82
  83 CdmResultPromise<void>::CdmResultPromise(
  84     const blink::WebContentDecryptionModuleResult& result)
  85     : media::CdmPromiseTemplate<void>(
  86           base::Bind(&CdmResultPromise::OnResolve, base::Unretained(this)),
  87           base::Bind(&CdmResultPromise::OnReject, base::Unretained(this))),
  88       web_cdm_result_(result) {
  89 }
  90
  91 CdmResultPromise<void>::CdmResultPromise(
  92     const blink::WebContentDecryptionModuleResult& result,
  93     const std::string& uma_name)
  94     : media::CdmPromiseTemplate<void>(
  95           base::Bind(&CdmResultPromise::OnResolve, base::Unretained(this)),
  96           base::Bind(&CdmResultPromise::OnReject, base::Unretained(this)),
  97           uma_name),
  98       web_cdm_result_(result) {
  99 }
 100
 101 CdmResultPromise<void>::~CdmResultPromise() {
 102 }
 103
 104 void CdmResultPromise<void>::OnResolve() {
 105   web_cdm_result_.complete();
 106 }
 107
 108 void CdmResultPromise<void>::OnReject(
 109     media::MediaKeys::Exception exception_code,
 110     uint32 system_code,
 111     const std::string& error_message) {
 112   web_cdm_result_.completeWithError(ConvertException(exception_code),
 113                                     system_code,
 114                                     blink::WebString::fromUTF8(error_message));
 115 }
 116
 117 // Explicit template instantiation for the templates needed.
 118 template class CdmResultPromise<std::string>;
 119 template class CdmResultPromise<media::KeyIdsVector>;
 120
 121 }  // namespace content