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// Copyright 2014 The Chromium Authors
// 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/functional/bind.h"
#include "extensions/common/features/feature.h"
#include "extensions/renderer/script_context.h"
#include "extensions/renderer/script_context_set.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "v8/include/v8-function-callback.h"
#include "v8/include/v8-object.h"
#include "v8/include/v8-primitive.h"
namespace extensions {
V8ContextNativeHandler::V8ContextNativeHandler(ScriptContext* context)
: ObjectBackedNativeHandler(context), context_(context) {}
void V8ContextNativeHandler::AddRoutes() {
RouteHandlerFunction(
"GetAvailability",
base::BindRepeating(&V8ContextNativeHandler::GetAvailability,
base::Unretained(this)));
RouteHandlerFunction(
"GetModuleSystem",
base::BindRepeating(&V8ContextNativeHandler::GetModuleSystem,
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(isolate, args[0]);
Feature::Availability availability = context_->GetAvailability(api_name);
v8::Local<v8::Context> context = context_->v8_context();
v8::Local<v8::Object> ret = v8::Object::New(isolate);
v8::Maybe<bool> maybe = ret->SetPrototypeV2(context, v8::Null(isolate));
CHECK(maybe.IsJust() && maybe.FromJust());
ret->Set(context,
v8::String::NewFromUtf8(isolate, "is_available",
v8::NewStringType::kInternalized)
.ToLocalChecked(),
v8::Boolean::New(isolate, availability.is_available()))
.ToChecked();
ret->Set(context,
v8::String::NewFromUtf8(isolate, "message",
v8::NewStringType::kInternalized)
.ToLocalChecked(),
v8::String::NewFromUtf8(isolate, availability.message().c_str(),
v8::NewStringType::kNormal)
.ToLocalChecked())
.ToChecked();
ret->Set(context,
v8::String::NewFromUtf8(isolate, "result",
v8::NewStringType::kInternalized)
.ToLocalChecked(),
v8::Integer::New(isolate, availability.result()))
.ToChecked();
args.GetReturnValue().Set(ret);
}
void V8ContextNativeHandler::GetModuleSystem(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(args.Length(), 1);
CHECK(args[0]->IsObject());
ScriptContext* context = ScriptContextSet::GetContextByObject(
v8::Local<v8::Object>::Cast(args[0]));
if (context && blink::WebFrame::ScriptCanAccess(args.GetIsolate(),
context->web_frame())) {
args.GetReturnValue().Set(context->module_system()->NewInstance());
}
}
} // namespace extensions
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