media/base/cdm_callback_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 "media/base/cdm_callback_promise.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace media {
  10
  11 template <typename... T>
  12 CdmCallbackPromise<T...>::CdmCallbackPromise(
  13     const base::Callback<void(const T&...)>& resolve_cb,
  14     const PromiseRejectedCB& reject_cb)
  15     : resolve_cb_(resolve_cb), reject_cb_(reject_cb) {
  16   DCHECK(!resolve_cb_.is_null());
  17   DCHECK(!reject_cb_.is_null());
  18 }
  19
  20 template <typename... T>
  21 CdmCallbackPromise<T...>::~CdmCallbackPromise() {
  22 }
  23
  24 template <typename... T>
  25 void CdmCallbackPromise<T...>::resolve(const T&... result) {
  26   MarkPromiseSettled();
  27   resolve_cb_.Run(result...);
  28 }
  29
  30 template <typename... T>
  31 void CdmCallbackPromise<T...>::reject(MediaKeys::Exception exception_code,
  32                                       uint32 system_code,
  33                                       const std::string& error_message) {
  34   MarkPromiseSettled();
  35   reject_cb_.Run(exception_code, system_code, error_message);
  36 }
  37
  38 // Explicit template instantiation for the Promises needed.
  39 template class MEDIA_EXPORT CdmCallbackPromise<>;
  40 template class MEDIA_EXPORT CdmCallbackPromise<std::string>;
  41
  42 }  // namespace media