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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/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->SetPrototype(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(context->web_frame()))
- args.GetReturnValue().Set(context->module_system()->NewInstance());
- }
- } // namespace extensions
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