[Presentation API] 1-UA: notify receiver page when receiver connection becomes available (blink sid…

third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp

 // Copyright 2015 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 "modules/presentation/PresentationReceiver.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "modules/presentation/PresentationConnectionList.h"
+#include "public/platform/modules/presentation/WebPresentationClient.h"
 
 namespace blink {
 
-PresentationReceiver::PresentationReceiver(LocalFrame* frame)
+PresentationReceiver::PresentationReceiver(LocalFrame* frame, WebPresentationClient* client)
     : DOMWindowProperty(frame)
 {
     m_connectionList = new PresentationConnectionList(frame->document());
+
+    if (client)
+        client->setReceiver(this);
 }
 
 ScriptPromise PresentationReceiver::connectionList(ScriptState* scriptState)
 {
     if (!m_connectionListProperty)
         m_connectionListProperty = new ConnectionListProperty(scriptState->getExecutionContext(), this, ConnectionListProperty::Ready);
 
     if (!m_connectionList->isEmpty() && m_connectionListProperty->getState() == ScriptPromisePropertyBase::Pending)
         m_connectionListProperty->resolve(m_connectionList);
 
     return m_connectionListProperty->promise(scriptState->world());
 }
 
-void PresentationReceiver::onConnectionReceived(WebPresentationConnectionClient* connectionClient)
+void PresentationReceiver::onReceiverConnectionAvailable(WebPresentationConnectionClient* connectionClient)
 {
     DCHECK(connectionClient);
     // take() will call PresentationReceiver::registerConnection()
     // and register the connection.
     auto connection = PresentationConnection::take(this, wrapUnique(connectionClient));
 
     // receiver.connectionList property not accessed
     if (!m_connectionListProperty)
         return;
 
     if (m_connectionListProperty->getState() == ScriptPromisePropertyBase::Pending)
         m_connectionListProperty->resolve(m_connectionList);
     else if (m_connectionListProperty->getState() == ScriptPromisePropertyBase::Resolved)
         m_connectionList->dispatchConnectionAvailableEvent(connection);
 }
 
 void PresentationReceiver::registerConnection(PresentationConnection* connection)
 {
     DCHECK(m_connectionList);
     m_connectionList->addConnection(connection);
 }
 
 DEFINE_TRACE(PresentationReceiver)
 {
     visitor->trace(m_connectionList);
     visitor->trace(m_connectionListProperty);
     DOMWindowProperty::trace(visitor);
 }
 } // namespace blink