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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "ppapi/cpp/dev/scriptable_object_deprecated.h"
#include <stddef.h>
#include <stdint.h>
#include "ppapi/c/dev/ppb_memory_dev.h"
#include "ppapi/c/dev/ppp_class_deprecated.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/var.h"
namespace pp {
namespace deprecated {
namespace {
// Allows converting an output param of a Var to an output param of a PP_Var
// for exceptions. The object is only copied if it is not void, which we
// take to mean an exception occurred.
class ExceptionConverter {
public:
ExceptionConverter(PP_Var* out) : out_(out) {
}
~ExceptionConverter() {
if (!exception_.is_undefined())
*out_ = exception_.Detach();
}
Var* Get() { return &exception_; }
private:
PP_Var* out_;
Var exception_;
};
// Used internally to convert a C-style array of PP_Var to a vector of Var.
void ArgListToVector(uint32_t argc, PP_Var* argv, std::vector<Var>* output) {
output->reserve(argc);
for (size_t i = 0; i < argc; i++)
output->push_back(Var(Var::DontManage(), argv[i]));
}
bool HasProperty(void* object, PP_Var name, PP_Var* exception) {
ExceptionConverter e(exception);
return static_cast<ScriptableObject*>(object)->HasProperty(
Var(Var::DontManage(), name), e.Get());
}
bool HasMethod(void* object, PP_Var name, PP_Var* exception) {
ExceptionConverter e(exception);
return static_cast<ScriptableObject*>(object)->HasMethod(
Var(Var::DontManage(), name), e.Get());
}
PP_Var GetProperty(void* object,
PP_Var name,
PP_Var* exception) {
ExceptionConverter e(exception);
return static_cast<ScriptableObject*>(object)->GetProperty(
Var(Var::DontManage(), name), e.Get()).Detach();
}
void GetAllPropertyNames(void* object,
uint32_t* property_count,
PP_Var** properties,
PP_Var* exception) {
ExceptionConverter e(exception);
std::vector<Var> props;
static_cast<ScriptableObject*>(object)->GetAllPropertyNames(&props, e.Get());
if (props.empty())
return;
*property_count = static_cast<uint32_t>(props.size());
const PPB_Memory_Dev* memory_if = static_cast<const PPB_Memory_Dev*>(
pp::Module::Get()->GetBrowserInterface(PPB_MEMORY_DEV_INTERFACE));
*properties = static_cast<PP_Var*>(memory_if->MemAlloc(
static_cast<uint32_t>(sizeof(PP_Var) * props.size())));
for (size_t i = 0; i < props.size(); ++i)
(*properties)[i] = props[i].Detach();
}
void SetProperty(void* object,
PP_Var name,
PP_Var value,
PP_Var* exception) {
ExceptionConverter e(exception);
static_cast<ScriptableObject*>(object)->SetProperty(
Var(Var::DontManage(), name), Var(Var::DontManage(), value), e.Get());
}
void RemoveProperty(void* object,
PP_Var name,
PP_Var* exception) {
ExceptionConverter e(exception);
static_cast<ScriptableObject*>(object)->RemoveProperty(
Var(Var::DontManage(), name), e.Get());
}
PP_Var Call(void* object,
PP_Var method_name,
uint32_t argc,
PP_Var* argv,
PP_Var* exception) {
ExceptionConverter e(exception);
std::vector<Var> args;
ArgListToVector(argc, argv, &args);
return static_cast<ScriptableObject*>(object)->Call(
Var(Var::DontManage(), method_name), args, e.Get()).Detach();
}
PP_Var Construct(void* object,
uint32_t argc,
PP_Var* argv,
PP_Var* exception) {
ExceptionConverter e(exception);
std::vector<Var> args;
ArgListToVector(argc, argv, &args);
return static_cast<ScriptableObject*>(object)->Construct(
args, e.Get()).Detach();
}
void Deallocate(void* object) {
delete static_cast<ScriptableObject*>(object);
}
PPP_Class_Deprecated plugin_class = {
&HasProperty,
&HasMethod,
&GetProperty,
&GetAllPropertyNames,
&SetProperty,
&RemoveProperty,
&Call,
&Construct,
&Deallocate
};
} // namespace
bool ScriptableObject::HasProperty(const Var& /*name*/, Var* /*exception*/) {
return false;
}
bool ScriptableObject::HasMethod(const Var& /*name*/, Var* /*exception*/) {
return false;
}
Var ScriptableObject::GetProperty(const Var& /*name*/, Var* exception) {
*exception = Var("Property does not exist on ScriptableObject");
return Var();
}
void ScriptableObject::GetAllPropertyNames(std::vector<Var>* /*properties*/,
Var* /*exception*/) {
}
void ScriptableObject::SetProperty(const Var& /*name*/,
const Var& /*value*/,
Var* exception) {
*exception = Var("Property can not be set on ScriptableObject");
}
void ScriptableObject::RemoveProperty(const Var& /*name*/,
Var* exception) {
*exception = Var(
"Property does does not exist to be removed in ScriptableObject");
}
Var ScriptableObject::Call(const Var& /*method_name*/,
const std::vector<Var>& /*args*/,
Var* exception) {
*exception = Var("Method does not exist to call in ScriptableObject");
return Var();
}
Var ScriptableObject::Construct(const std::vector<Var>& /*args*/,
Var* exception) {
*exception = Var("Construct method does not exist in ScriptableObject");
return Var();
}
// static
const PPP_Class_Deprecated* ScriptableObject::GetClass() {
return &plugin_class;
}
} // namespace deprecated
} // namespace pp
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