ppapi/cpp/var_dictionary.cc

   1 // Copyright 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 #include "ppapi/cpp/var_dictionary.h"
   6
   7 #include "ppapi/c/ppb_var_dictionary.h"
   8 #include "ppapi/cpp/logging.h"
   9 #include "ppapi/cpp/module_impl.h"
  10
  11 namespace pp {
  12
  13 namespace {
  14
  15 template <> const char* interface_name<PPB_VarDictionary_1_0>() {
  16   return PPB_VAR_DICTIONARY_INTERFACE_1_0;
  17 }
  18
  19 }  // namespace
  20
  21 VarDictionary::VarDictionary() : Var(Null()) {
  22   if (has_interface<PPB_VarDictionary_1_0>())
  23     var_ = get_interface<PPB_VarDictionary_1_0>()->Create();
  24   else
  25     PP_NOTREACHED();
  26 }
  27
  28 VarDictionary::VarDictionary(const Var& var) : Var(var) {
  29   if (!var.is_dictionary()) {
  30     PP_NOTREACHED();
  31
  32     // This takes care of releasing the reference that this object holds.
  33     Var::operator=(Var(Null()));
  34   }
  35 }
  36
  37 VarDictionary::VarDictionary(const PP_Var& var) : Var(var) {
  38   if (var.type != PP_VARTYPE_DICTIONARY) {
  39     PP_NOTREACHED();
  40
  41     // This takes care of releasing the reference that this object holds.
  42     Var::operator=(Var(Null()));
  43   }
  44 }
  45
  46 VarDictionary::VarDictionary(const VarDictionary& other)
  47     : Var(other) {
  48 }
  49
  50 VarDictionary::~VarDictionary() {
  51 }
  52
  53 VarDictionary& VarDictionary::operator=(
  54     const VarDictionary& other) {
  55   Var::operator=(other);
  56   return *this;
  57 }
  58
  59 Var& VarDictionary::operator=(const Var& other) {
  60   if (other.is_dictionary()) {
  61     Var::operator=(other);
  62   } else {
  63     PP_NOTREACHED();
  64     Var::operator=(Var(Null()));
  65   }
  66   return *this;
  67 }
  68
  69 Var VarDictionary::Get(const Var& key) const {
  70   if (!has_interface<PPB_VarDictionary_1_0>())
  71     return Var();
  72
  73   return Var(
  74       PASS_REF,
  75       get_interface<PPB_VarDictionary_1_0>()->Get(var_, key.pp_var()));
  76 }
  77
  78 bool VarDictionary::Set(const Var& key, const Var& value) {
  79   if (!has_interface<PPB_VarDictionary_1_0>())
  80     return false;
  81
  82   return PP_ToBool(get_interface<PPB_VarDictionary_1_0>()->Set(
  83       var_, key.pp_var(), value.pp_var()));
  84 }
  85
  86 void VarDictionary::Delete(const Var& key) {
  87   if (has_interface<PPB_VarDictionary_1_0>())
  88     get_interface<PPB_VarDictionary_1_0>()->Delete(var_, key.pp_var());
  89 }
  90
  91 bool VarDictionary::HasKey(const Var& key) const {
  92   if (!has_interface<PPB_VarDictionary_1_0>())
  93     return false;
  94
  95   return PP_ToBool(get_interface<PPB_VarDictionary_1_0>()->HasKey(
  96       var_, key.pp_var()));
  97 }
  98
  99 VarArray VarDictionary::GetKeys() const {
 100   if (!has_interface<PPB_VarDictionary_1_0>())
 101     return VarArray();
 102
 103   Var result(PASS_REF,
 104              get_interface<PPB_VarDictionary_1_0>()->GetKeys(var_));
 105   if (result.is_array())
 106     return VarArray(result);
 107   else
 108     return VarArray();
 109 }
 110
 111 }  // namespace pp