[Presentation API] (alternative) 1-UA: send message between controller and receiver page

third_party/WebKit/Source/modules/presentation/PresentationConnection.h

 // 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.
 
 #ifndef PresentationConnection_h
 #define PresentationConnection_h
 
 #include "core/events/EventTarget.h"
 #include "core/fileapi/Blob.h"
 #include "core/fileapi/FileError.h"
 #include "core/frame/DOMWindowProperty.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
+#include "public/platform/modules/presentation/WebPresentationConnection.h"
 #include "public/platform/modules/presentation/WebPresentationConnectionClient.h"
+#include "public/platform/modules/presentation/WebPresentationConnectionProxy.h"
 #include "wtf/text/WTFString.h"
 #include <memory>
 
 namespace WTF {
 class AtomicString;
 }  // namespace WTF
 
 namespace blink {
 
 class DOMArrayBuffer;
 class DOMArrayBufferView;
 class PresentationController;
 class PresentationReceiver;
 class PresentationRequest;
 
 class PresentationConnection final : public EventTargetWithInlineData,
-                                     public DOMWindowProperty {
+                                     public DOMWindowProperty,
+                                     public WebPresentationConnection {
   USING_GARBAGE_COLLECTED_MIXIN(PresentationConnection);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   // For CallbackPromiseAdapter.
   using WebType = std::unique_ptr<WebPresentationConnectionClient>;
 
   static PresentationConnection* take(
       ScriptPromiseResolver*,
       std::unique_ptr<WebPresentationConnectionClient>,
@@ skipping 34 matching lines @@
   // Returns true if and only if the WebPresentationConnectionClient represents this connection.
   bool matches(WebPresentationConnectionClient*) const;
 
   // Notifies the connection about its state change.
   void didChangeState(WebPresentationConnectionState);
 
   // Notifies the connection about its state change to 'closed'.
   void didClose(WebPresentationConnectionCloseReason, const String& message);
 
   // Notifies the presentation about new message.
-  void didReceiveTextMessage(const String& message);
-  void didReceiveBinaryMessage(const uint8_t* data, size_t length);
+  void didReceiveTextMessage(const WebString& message) override;
+  void didReceiveBinaryMessage(const uint8_t* data, size_t length) override;
 
  protected:
   // EventTarget implementation.
   void addedEventListener(const AtomicString& eventType,
                           RegisteredEventListener&) override;
 
  private:
   class BlobLoader;
 
   enum MessageType {
     MessageTypeText,
     MessageTypeArrayBuffer,
     MessageTypeBlob,
   };
 
   enum BinaryType { BinaryTypeBlob, BinaryTypeArrayBuffer };
 
   class Message;
 
-  PresentationConnection(LocalFrame*, const String& id, const KURL&);
+  PresentationConnection(LocalFrame*,
+                         const String& id,
+                         const KURL&,
+                         WebPresentationConnectionProxy*);
 
   bool canSendMessage(ExceptionState&);
   void handleMessageQueue();
 
   // Callbacks invoked from BlobLoader.
   void didFinishLoadingBlob(DOMArrayBuffer*);
   void didFailLoadingBlob(FileError::ErrorCode);
 
   // Cancel loads and pending messages when the connection is closed.
   void tearDown();
 
   String m_id;
   KURL m_url;
   WebPresentationConnectionState m_state;
 
   // For Blob data handling.
   Member<BlobLoader> m_blobLoader;
   HeapDeque<Member<Message>> m_messages;
 
   BinaryType m_binaryType;
+
+  std::unique_ptr<WebPresentationConnectionProxy> m_proxy;
 };
 
 }  // namespace blink
 
 #endif  // PresentationConnection_h