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108 lines
3.4 KiB
108 lines
3.4 KiB
9 years ago
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/* Copyright 2013 The Chromium Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* From ppb_var_dictionary.idl modified Sat Jun 8 23:03:54 2013. */
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#ifndef PPAPI_C_PPB_VAR_DICTIONARY_H_
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#define PPAPI_C_PPB_VAR_DICTIONARY_H_
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#include "pp_bool.h"
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#include "pp_macros.h"
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#include "pp_stdint.h"
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#include "pp_var.h"
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#define PPB_VAR_DICTIONARY_INTERFACE_1_0 "PPB_VarDictionary;1.0"
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#define PPB_VAR_DICTIONARY_INTERFACE PPB_VAR_DICTIONARY_INTERFACE_1_0
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/**
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* @file
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* This file defines the <code>PPB_VarDictionary</code> struct providing
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* a way to interact with dictionary vars.
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*/
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/**
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* @addtogroup Interfaces
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* @{
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*/
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/**
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* A dictionary var contains key-value pairs with unique keys. The keys are
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* strings while the values can be arbitrary vars. Key comparison is always
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* done by value instead of by reference.
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*/
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struct PPB_VarDictionary_1_0 {
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/**
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* Creates a dictionary var, i.e., a <code>PP_Var</code> with type set to
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* <code>PP_VARTYPE_DICTIONARY</code>.
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*
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* @return An empty dictionary var, whose reference count is set to 1 on
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* behalf of the caller.
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*/
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struct PP_Var (*Create)(void);
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/**
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* Gets the value associated with the specified key.
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*
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* @param[in] dict A dictionary var.
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* @param[in] key A string var.
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*
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* @return The value that is associated with <code>key</code>. The reference
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* count of the element returned is incremented on behalf of the caller. If
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* <code>key</code> is not a string var, or it doesn't exist in
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* <code>dict</code>, an undefined var is returned.
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*/
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struct PP_Var (*Get)(struct PP_Var dict, struct PP_Var key);
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/**
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* Sets the value associated with the specified key.
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*
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* @param[in] dict A dictionary var.
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* @param[in] key A string var. If this key hasn't existed in
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* <code>dict</code>, it is added and associated with <code>value</code>;
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* otherwise, the previous value is replaced with <code>value</code>.
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* @param[in] value The value to set. The dictionary holds a reference to it
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* on success.
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*
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* @return A <code>PP_Bool</code> indicating whether the operation succeeds.
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*/
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PP_Bool (*Set)(struct PP_Var dict, struct PP_Var key, struct PP_Var value);
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/**
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* Deletes the specified key and its associated value, if the key exists. The
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* reference to the element will be released.
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*
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* @param[in] dict A dictionary var.
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* @param[in] key A string var.
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*/
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void (*Delete)(struct PP_Var dict, struct PP_Var key);
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/**
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* Checks whether a key exists.
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*
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* @param[in] dict A dictionary var.
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* @param[in] key A string var.
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*
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* @return A <code>PP_Bool</code> indicating whether the key exists.
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*/
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PP_Bool (*HasKey)(struct PP_Var dict, struct PP_Var key);
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/**
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* Gets all the keys in a dictionary. Please note that for each key that you
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* set into the dictionary, a string var with the same contents is returned;
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* but it may not be the same string var (i.e., <code>value.as_id</code> may
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* be different).
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*
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* @param[in] dict A dictionary var.
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*
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* @return An array var which contains all the keys of <code>dict</code>. Its
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* reference count is incremented on behalf of the caller. The elements are
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* string vars. Returns a null var if failed.
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*/
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struct PP_Var (*GetKeys)(struct PP_Var dict);
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};
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typedef struct PPB_VarDictionary_1_0 PPB_VarDictionary;
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/**
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* @}
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*/
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#endif /* PPAPI_C_PPB_VAR_DICTIONARY_H_ */
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