[Presentation API] (1-UA) fire PresentationConnection onterminate event if receiver page gets destr…

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

Index: third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
diff --git a/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp b/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
index d7097b9a0f18dc66eef472f7e884c97ed3cae1eb..02262198f0700313f9b834e5553b2d599df0c6b8 100644
--- a/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
+++ b/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
@@ -9,6 +9,7 @@
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
+#include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "modules/presentation/PresentationConnectionList.h"
@@ -59,6 +60,27 @@ WebPresentationConnection* PresentationReceiver::onReceiverConnectionAvailable(
   return connection;
 }
 
+void PresentationReceiver::didChangeSessionState(
+    WebPresentationConnectionState state) {
+  // TODO(zhaobin): remove or modify DCHECK when receiver supports more
+  // connection state change.
+  DCHECK(state == WebPresentationConnectionState::Terminated);
+
+  for (auto connection : m_connectionList->connections())
+    connection->didChangeState(state);

[mark a. foltz, 2017/02/25 01:43:12]

Will this fire a terminated event on the receiver connections?  The spec doesn't
actually require the browser to do that; since the window is being closed
anyway, it didn't make sense to run additional event loops, in addition to
onbeforeunload etc.

[zhaobin, 2017/02/28 04:25:19]

Done.

+}
+
+void PresentationReceiver::closeWindow() {
+  if (!frame())
+    return;
+
+  auto* window = frame()->domWindow();
+  if (!window || window->closed())
+    return;
+
+  window->close(frame()->document());
+}
+
 void PresentationReceiver::registerConnection(
     PresentationConnection* connection) {
   DCHECK(m_connectionList);