import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/presentation/PresentationConnectionList.cpp

@@ -0,0 +1,125 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PresentationConnectionList.h"
+
+#include "mozilla/AsyncEventDispatcher.h"
+#include "mozilla/dom/PresentationConnectionAvailableEvent.h"
+#include "mozilla/dom/PresentationConnectionListBinding.h"
+#include "mozilla/dom/Promise.h"
+#include "PresentationConnection.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(PresentationConnectionList, DOMEventTargetHelper,
+                                   mGetConnectionListPromise,
+                                   mConnections)
+
+NS_IMPL_ADDREF_INHERITED(PresentationConnectionList, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(PresentationConnectionList, DOMEventTargetHelper)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(PresentationConnectionList)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+PresentationConnectionList::PresentationConnectionList(nsPIDOMWindowInner* aWindow,
+                                                       Promise* aPromise)
+  : DOMEventTargetHelper(aWindow)
+  , mGetConnectionListPromise(aPromise)
+{
+  MOZ_ASSERT(aWindow);
+  MOZ_ASSERT(aPromise);
+}
+
+/* virtual */ JSObject*
+PresentationConnectionList::WrapObject(JSContext* aCx,
+                                       JS::Handle<JSObject*> aGivenProto)
+{
+  return PresentationConnectionListBinding::Wrap(aCx, this, aGivenProto);
+}
+
+void
+PresentationConnectionList::GetConnections(
+  nsTArray<RefPtr<PresentationConnection>>& aConnections) const
+{
+  aConnections = mConnections;
+}
+
+nsresult
+PresentationConnectionList::DispatchConnectionAvailableEvent(
+  PresentationConnection* aConnection)
+{
+  PresentationConnectionAvailableEventInit init;
+  init.mConnection = aConnection;
+
+  RefPtr<PresentationConnectionAvailableEvent> event =
+    PresentationConnectionAvailableEvent::Constructor(
+      this,
+      NS_LITERAL_STRING("connectionavailable"),
+      init);
+
+  if (NS_WARN_IF(!event)) {
+    return NS_ERROR_FAILURE;
+  }
+  event->SetTrusted(true);
+
+  RefPtr<AsyncEventDispatcher> asyncDispatcher =
+    new AsyncEventDispatcher(this, event);
+  return asyncDispatcher->PostDOMEvent();
+}
+
+PresentationConnectionList::ConnectionArrayIndex
+PresentationConnectionList::FindConnectionById(
+  const nsAString& aId)
+{
+  for (ConnectionArrayIndex i = 0; i < mConnections.Length(); i++) {
+    nsAutoString id;
+    mConnections[i]->GetId(id);
+    if (id == nsAutoString(aId)) {
+      return i;
+    }
+  }
+
+  return mConnections.NoIndex;
+}
+
+void
+PresentationConnectionList::NotifyStateChange(const nsAString& aSessionId,
+                                              PresentationConnection* aConnection)
+{
+  if (!aConnection) {
+    MOZ_ASSERT(false, "PresentationConnection can not be null.");
+    return;
+  }
+
+  bool connectionFound =
+    FindConnectionById(aSessionId) != mConnections.NoIndex ? true : false;
+
+  PresentationConnectionListBinding::ClearCachedConnectionsValue(this);
+  switch (aConnection->State()) {
+    case PresentationConnectionState::Connected:
+      if (!connectionFound) {
+        mConnections.AppendElement(aConnection);
+        if (mGetConnectionListPromise) {
+          mGetConnectionListPromise->MaybeResolve(this);
+          mGetConnectionListPromise = nullptr;
+          return;
+        }
+      }
+      DispatchConnectionAvailableEvent(aConnection);
+      break;
+    case PresentationConnectionState::Terminated:
+      if (connectionFound) {
+        mConnections.RemoveElement(aConnection);
+      }
+      break;
+    default:
+      break;
+    }
+}
+
+} // namespace dom
+} // namespace mozilla