ppapi/cpp/var_array.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_array.h"
   6
   7 #include "ppapi/c/ppb_var_array.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_VarArray_1_0>() {
  16   return PPB_VAR_ARRAY_INTERFACE_1_0;
  17 }
  18
  19 }  // namespace
  20
  21 VarArray::VarArray() : Var(Null()) {
  22   if (has_interface<PPB_VarArray_1_0>())
  23     var_ = get_interface<PPB_VarArray_1_0>()->Create();
  24   else
  25     PP_NOTREACHED();
  26 }
  27
  28 VarArray::VarArray(const Var& var) : Var(var) {
  29   if (!var.is_array()) {
  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 VarArray::VarArray(const PP_Var& var) : Var(var) {
  38   if (var.type != PP_VARTYPE_ARRAY) {
  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 VarArray::VarArray(const VarArray& other) : Var(other) {
  47 }
  48
  49 VarArray::~VarArray() {
  50 }
  51
  52 VarArray& VarArray::operator=(const VarArray& other) {
  53   Var::operator=(other);
  54   return *this;
  55 }
  56
  57 Var& VarArray::operator=(const Var& other) {
  58   if (other.is_array()) {
  59     Var::operator=(other);
  60   } else {
  61     PP_NOTREACHED();
  62     Var::operator=(Var(Null()));
  63   }
  64   return *this;
  65 }
  66
  67 Var VarArray::Get(uint32_t index) const {
  68   if (!has_interface<PPB_VarArray_1_0>())
  69     return Var();
  70
  71   return Var(PASS_REF, get_interface<PPB_VarArray_1_0>()->Get(var_, index));
  72 }
  73
  74 bool VarArray::Set(uint32_t index, const Var& value) {
  75   if (!has_interface<PPB_VarArray_1_0>())
  76     return false;
  77
  78   return PP_ToBool(get_interface<PPB_VarArray_1_0>()->Set(var_, index,
  79                                                           value.pp_var()));
  80 }
  81
  82 uint32_t VarArray::GetLength() const {
  83   if (!has_interface<PPB_VarArray_1_0>())
  84     return 0;
  85
  86   return get_interface<PPB_VarArray_1_0>()->GetLength(var_);
  87 }
  88
  89 bool VarArray::SetLength(uint32_t length) {
  90   if (!has_interface<PPB_VarArray_1_0>())
  91     return false;
  92
  93   return PP_ToBool(get_interface<PPB_VarArray_1_0>()->SetLength(var_, length));
  94 }
  95
  96 }  // namespace pp