ppapi/cpp/dev/resource_array_dev.cc

   1 // Copyright (c) 2012 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/dev/resource_array_dev.h"
   6
   7 #include "ppapi/c/dev/ppb_resource_array_dev.h"
   8 #include "ppapi/c/pp_errors.h"
   9 #include "ppapi/cpp/instance_handle.h"
  10 #include "ppapi/cpp/logging.h"
  11 #include "ppapi/cpp/module.h"
  12 #include "ppapi/cpp/module_impl.h"
  13
  14 namespace pp {
  15
  16 namespace {
  17
  18 template <> const char* interface_name<PPB_ResourceArray_Dev>() {
  19   return PPB_RESOURCEARRAY_DEV_INTERFACE;
  20 }
  21
  22 }  // namespace
  23
  24 ResourceArray_Dev::ResourceArray_Dev() {
  25 }
  26
  27 ResourceArray_Dev::ResourceArray_Dev(PassRef, PP_Resource resource)
  28     : Resource(PASS_REF, resource) {
  29 }
  30
  31 ResourceArray_Dev::ResourceArray_Dev(const ResourceArray_Dev& other)
  32     : Resource(other) {
  33 }
  34
  35 ResourceArray_Dev::ResourceArray_Dev(const InstanceHandle& instance,
  36                                      const PP_Resource elements[],
  37                                      uint32_t size) {
  38   if (has_interface<PPB_ResourceArray_Dev>()) {
  39     PassRefFromConstructor(get_interface<PPB_ResourceArray_Dev>()->Create(
  40         instance.pp_instance(), elements, size));
  41   }
  42 }
  43
  44 ResourceArray_Dev::~ResourceArray_Dev() {
  45 }
  46
  47 ResourceArray_Dev& ResourceArray_Dev::operator=(
  48     const ResourceArray_Dev& other) {
  49   Resource::operator=(other);
  50   return *this;
  51 }
  52
  53 uint32_t ResourceArray_Dev::size() const {
  54   if (!has_interface<PPB_ResourceArray_Dev>())
  55     return 0;
  56   return get_interface<PPB_ResourceArray_Dev>()->GetSize(pp_resource());
  57 }
  58
  59 PP_Resource ResourceArray_Dev::operator[](uint32_t index) const {
  60   if (!has_interface<PPB_ResourceArray_Dev>())
  61     return 0;
  62   return get_interface<PPB_ResourceArray_Dev>()->GetAt(pp_resource(), index);
  63 }
  64
  65 // static
  66 void ResourceArray_Dev::ArrayOutputCallbackConverter(void* user_data,
  67                                                      int32_t result) {
  68   ArrayOutputCallbackData* data =
  69       static_cast<ArrayOutputCallbackData*>(user_data);
  70
  71   // data->resource_array_output should remain 0 if the call failed.
  72   ResourceArray_Dev resources(PASS_REF, data->resource_array_output);
  73   PP_DCHECK(resources.is_null() || result == PP_OK);
  74
  75   // Need to issue the "GetDataBuffer" even for error cases and when the number
  76   // of items is 0.
  77   PP_Resource* output_buf = static_cast<PP_Resource*>(
  78       data->output.GetDataBuffer(
  79           data->output.user_data, resources.is_null() ? 0 : resources.size(),
  80           sizeof(PP_Resource)));
  81   if (output_buf) {
  82     for (uint32_t index = 0; index < resources.size(); ++index) {
  83       output_buf[index] = resources[index];
  84       Module::Get()->core()->AddRefResource(output_buf[index]);
  85     }
  86   }
  87
  88   PP_RunCompletionCallback(&data->original_callback, result);
  89   delete data;
  90 }
  91
  92 }  // namespace pp