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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "nsContentUtils.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(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 PresentationConnectionList_Binding::Wrap(aCx, this, aGivenProto);
}
void PresentationConnectionList::GetConnections(
nsTArray<RefPtr<PresentationConnection>>& aConnections) const {
if (nsContentUtils::ShouldResistFingerprinting()) {
aConnections.Clear();
return;
}
aConnections = mConnections.Clone();
}
nsresult PresentationConnectionList::DispatchConnectionAvailableEvent(
PresentationConnection* aConnection) {
if (nsContentUtils::ShouldResistFingerprinting()) {
return NS_OK;
}
PresentationConnectionAvailableEventInit init;
init.mConnection = aConnection;
RefPtr<PresentationConnectionAvailableEvent> event =
PresentationConnectionAvailableEvent::Constructor(
this, u"connectionavailable"_ns, 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 == aId) {
return i;
}
}
return ConnectionArray::NoIndex;
}
void PresentationConnectionList::NotifyStateChange(
const nsAString& aSessionId, PresentationConnection* aConnection) {
if (!aConnection) {
MOZ_ASSERT(false, "PresentationConnection can not be null.");
return;
}
bool connectionFound =
FindConnectionById(aSessionId) != ConnectionArray::NoIndex;
PresentationConnectionList_Binding::ClearCachedConnectionsValue(this);
switch (aConnection->State()) {
case PresentationConnectionState::Connected:
if (!connectionFound) {
mConnections.AppendElement(aConnection);
if (mGetConnectionListPromise) {
if (!nsContentUtils::ShouldResistFingerprinting()) {
mGetConnectionListPromise->MaybeResolve(this);
}
mGetConnectionListPromise = nullptr;
return;
}
}
DispatchConnectionAvailableEvent(aConnection);
break;
case PresentationConnectionState::Terminated:
if (connectionFound) {
mConnections.RemoveElement(aConnection);
}
break;
default:
break;
}
}
} // namespace dom
} // namespace mozilla
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