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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/renderer/v8_context_native_handler.h"
#include "base/bind.h"
#include "extensions/common/features/feature.h"
#include "extensions/renderer/dispatcher.h"
#include "extensions/renderer/script_context.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
namespace extensions {
V8ContextNativeHandler::V8ContextNativeHandler(ScriptContext* context,
Dispatcher* dispatcher)
: ObjectBackedNativeHandler(context),
context_(context),
dispatcher_(dispatcher) {
RouteFunction("GetAvailability",
base::Bind(&V8ContextNativeHandler::GetAvailability,
base::Unretained(this)));
RouteFunction("GetModuleSystem",
base::Bind(&V8ContextNativeHandler::GetModuleSystem,
base::Unretained(this)));
RouteFunction(
"RunWithNativesEnabled",
base::Bind(&V8ContextNativeHandler::RunWithNativesEnabled,
base::Unretained(this)));
}
void V8ContextNativeHandler::GetAvailability(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(args.Length(), 1);
v8::Isolate* isolate = args.GetIsolate();
std::string api_name = *v8::String::Utf8Value(args[0]);
Feature::Availability availability = context_->GetAvailability(api_name);
v8::Local<v8::Object> ret = v8::Object::New(isolate);
ret->Set(v8::String::NewFromUtf8(isolate, "is_available"),
v8::Boolean::New(isolate, availability.is_available()));
ret->Set(v8::String::NewFromUtf8(isolate, "message"),
v8::String::NewFromUtf8(isolate, availability.message().c_str()));
ret->Set(v8::String::NewFromUtf8(isolate, "result"),
v8::Integer::New(isolate, availability.result()));
args.GetReturnValue().Set(ret);
}
void V8ContextNativeHandler::GetModuleSystem(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(args.Length(), 1);
CHECK(args[0]->IsObject());
v8::Local<v8::Context> v8_context =
v8::Local<v8::Object>::Cast(args[0])->CreationContext();
ScriptContext* context =
dispatcher_->script_context_set().GetByV8Context(v8_context);
if (blink::WebFrame::scriptCanAccess(context->web_frame()))
args.GetReturnValue().Set(context->module_system()->NewInstance());
}
void V8ContextNativeHandler::RunWithNativesEnabled(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(args.Length(), 1);
CHECK(args[0]->IsFunction());
ModuleSystem::NativesEnabledScope natives_enabled(context()->module_system());
context()->CallFunction(v8::Local<v8::Function>::Cast(args[0]));
}
} // namespace extensions
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