1 // Copyright (c) 2013 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 #ifndef PPAPI_SHARED_IMPL_DICTIONARY_VAR_H_ 6 #define PPAPI_SHARED_IMPL_DICTIONARY_VAR_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/basictypes.h" 12 #include "base/compiler_specific.h" 13 #include "ppapi/c/pp_var.h" 14 #include "ppapi/shared_impl/ppapi_shared_export.h" 15 #include "ppapi/shared_impl/scoped_pp_var.h" 16 #include "ppapi/shared_impl/var.h" 17 18 namespace ppapi { 19 20 class PPAPI_SHARED_EXPORT DictionaryVar : public Var { 21 public: 22 typedef std::map<std::string, ScopedPPVar> KeyValueMap; 23 24 DictionaryVar(); 25 26 // Helper function that converts a PP_Var to a DictionaryVar. This will 27 // return NULL if the PP_Var is not of type PP_VARTYPE_DICTIONARY or the 28 // dictionary cannot be found from the var tracker. 29 static DictionaryVar* FromPPVar(const PP_Var& var); 30 31 // Var overrides. 32 virtual DictionaryVar* AsDictionaryVar() OVERRIDE; 33 virtual PP_VarType GetType() const OVERRIDE; 34 35 // The returned PP_Var has had a ref added on behalf of the caller. 36 PP_Var Get(const PP_Var& key) const; 37 PP_Bool Set(const PP_Var& key, const PP_Var& value); 38 void Delete(const PP_Var& key); 39 PP_Bool HasKey(const PP_Var& key) const; 40 // The returned PP_Var has had a ref added on behalf of the caller. 41 PP_Var GetKeys() const; 42 43 // Returns false and keeps the dictionary unchanged if |key| is not a valid 44 // UTF-8 string. 45 bool SetWithStringKey(const std::string& utf8_key, const PP_Var& value); 46 void DeleteWithStringKey(const std::string& utf8_key); 47 48 const KeyValueMap& key_value_map() const { 49 return key_value_map_; 50 } 51 52 protected: 53 virtual ~DictionaryVar(); 54 55 private: 56 KeyValueMap key_value_map_; 57 58 DISALLOW_COPY_AND_ASSIGN(DictionaryVar); 59 }; 60 61 } // namespace ppapi 62 63 #endif // PPAPI_SHARED_IMPL_DICTIONARY_VAR_H_ 64
