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| 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 "config.h" |
| 6 #include "core/html/MediaProvider.h" |
| 7 |
| 8 #include "wtf/HashMap.h" |
| 9 #include "wtf/MainThread.h" |
| 10 #include "wtf/text/StringHash.h" |
| 11 |
| 12 namespace blink { |
| 13 |
| 14 class MediaProviderConverterContainer { |
| 15 public: |
| 16 static MediaProviderConverterContainer& container(); |
| 17 |
| 18 void registerMediaProviderConverter(const String& interfaceName, const Media
Provider::Converter&); |
| 19 virtual MediaProvider* convert(const ScriptValue&); |
| 20 |
| 21 private: |
| 22 HashMap<String, MediaProvider::Converter> m_converters; |
| 23 }; |
| 24 |
| 25 MediaProviderConverterContainer& MediaProviderConverterContainer::container() |
| 26 { |
| 27 ASSERT(isMainThread()); |
| 28 DEFINE_STATIC_LOCAL(MediaProviderConverterContainer, instance, ()); |
| 29 return instance; |
| 30 } |
| 31 |
| 32 void MediaProviderConverterContainer::registerMediaProviderConverter(const Strin
g& interfaceName, const MediaProvider::Converter& converter) |
| 33 { |
| 34 if (m_converters.get(interfaceName).isNull()) |
| 35 m_converters.set(interfaceName, converter); |
| 36 } |
| 37 |
| 38 MediaProvider* MediaProviderConverterContainer::convert(const ScriptValue& value
) |
| 39 { |
| 40 for (HashMap<String, MediaProvider::Converter>::iterator it = m_converters.b
egin(); it != m_converters.end(); ++it) { |
| 41 MediaProvider* provider = (it->value)(value); |
| 42 if (provider) |
| 43 return provider; |
| 44 } |
| 45 return nullptr; |
| 46 } |
| 47 |
| 48 MediaProvider::MediaProvider(const String& interfaceName, const Converter& conve
rter) |
| 49 { |
| 50 MediaProviderConverterContainer& container = MediaProviderConverterContainer
::container(); |
| 51 container.registerMediaProviderConverter(interfaceName, converter); |
| 52 } |
| 53 |
| 54 MediaProvider* MediaProvider::convert(const ScriptValue& value) |
| 55 { |
| 56 MediaProviderConverterContainer& container = MediaProviderConverterContainer
::container(); |
| 57 return container.convert(value); |
| 58 } |
| 59 |
| 60 } // namespace blink |
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