| // Copyright 2022 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_WEB_MESSAGE_PORT_H_ |
| #define COBALT_WEB_MESSAGE_PORT_H_ |
| |
| #include <string> |
| |
| #include "base/memory/weak_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "cobalt/base/tokens.h" |
| #include "cobalt/script/environment_settings.h" |
| #include "cobalt/script/sequence.h" |
| #include "cobalt/script/value_handle.h" |
| #include "cobalt/script/wrappable.h" |
| #include "cobalt/web/event_target.h" |
| #include "cobalt/web/event_target_listener_info.h" |
| #include "cobalt/web/message_event.h" |
| |
| namespace cobalt { |
| namespace web { |
| |
| class MessagePort : public script::Wrappable, |
| public base::SupportsWeakPtr<MessagePort> { |
| public: |
| explicit MessagePort(web::EventTarget* event_target); |
| ~MessagePort(); |
| MessagePort(const MessagePort&) = delete; |
| MessagePort& operator=(const MessagePort&) = delete; |
| |
| // This may help for adding support of 'object' |
| // void postMessage(any message, object transfer); |
| // -> void PostMessage(const script::ValueHandleHolder& message, |
| // script::Sequence<script::ValueHandle*> transfer) {} |
| void PostMessage(const std::string& message); |
| |
| void Start() {} |
| void Close() {} |
| |
| const web::EventTargetListenerInfo::EventListenerScriptValue* onmessage() |
| const { |
| return event_target_ ? event_target_->GetAttributeEventListener( |
| base::Tokens::message()) |
| : nullptr; |
| } |
| void set_onmessage( |
| const web::EventTargetListenerInfo::EventListenerScriptValue& |
| event_listener) { |
| if (event_target_) |
| event_target_->SetAttributeEventListener(base::Tokens::message(), |
| event_listener); |
| } |
| |
| const web::EventTargetListenerInfo::EventListenerScriptValue* onmessageerror() |
| const { |
| return event_target_ ? event_target_->GetAttributeEventListener( |
| base::Tokens::messageerror()) |
| : nullptr; |
| } |
| void set_onmessageerror( |
| const web::EventTargetListenerInfo::EventListenerScriptValue& |
| event_listener) { |
| if (event_target_) |
| event_target_->SetAttributeEventListener(base::Tokens::messageerror(), |
| event_listener); |
| } |
| |
| DEFINE_WRAPPABLE_TYPE(MessagePort); |
| |
| private: |
| // The event target to dispatch events to. |
| web::EventTarget* event_target_ = nullptr; |
| }; |
| |
| } // namespace web |
| } // namespace cobalt |
| |
| #endif // COBALT_WEB_MESSAGE_PORT_H_ |