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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 "ControllerConnectionCollection.h"
#include "mozilla/ClearOnShutdown.h"
#include "nsIPresentationService.h"
#include "PresentationConnection.h"
namespace mozilla {
namespace dom {
/* static */
StaticAutoPtr<ControllerConnectionCollection>
ControllerConnectionCollection::sSingleton;
/* static */
ControllerConnectionCollection* ControllerConnectionCollection::GetSingleton() {
MOZ_ASSERT(NS_IsMainThread());
if (!sSingleton) {
sSingleton = new ControllerConnectionCollection();
ClearOnShutdown(&sSingleton);
}
return sSingleton;
}
ControllerConnectionCollection::ControllerConnectionCollection() {
MOZ_COUNT_CTOR(ControllerConnectionCollection);
}
ControllerConnectionCollection::~ControllerConnectionCollection() {
MOZ_COUNT_DTOR(ControllerConnectionCollection);
}
void ControllerConnectionCollection::AddConnection(
PresentationConnection* aConnection, const uint8_t aRole) {
MOZ_ASSERT(NS_IsMainThread());
if (aRole != nsIPresentationService::ROLE_CONTROLLER) {
MOZ_ASSERT(false, "This is allowed only to be called at controller side.");
return;
}
if (!aConnection) {
return;
}
WeakPtr<PresentationConnection> connection = aConnection;
if (mConnections.Contains(connection)) {
return;
}
mConnections.AppendElement(connection);
}
void ControllerConnectionCollection::RemoveConnection(
PresentationConnection* aConnection, const uint8_t aRole) {
MOZ_ASSERT(NS_IsMainThread());
if (aRole != nsIPresentationService::ROLE_CONTROLLER) {
MOZ_ASSERT(false, "This is allowed only to be called at controller side.");
return;
}
if (!aConnection) {
return;
}
WeakPtr<PresentationConnection> connection = aConnection;
mConnections.RemoveElement(connection);
}
already_AddRefed<PresentationConnection>
ControllerConnectionCollection::FindConnection(uint64_t aWindowId,
const nsAString& aId,
const uint8_t aRole) {
MOZ_ASSERT(NS_IsMainThread());
if (aRole != nsIPresentationService::ROLE_CONTROLLER) {
MOZ_ASSERT(false, "This is allowed only to be called at controller side.");
return nullptr;
}
// Loop backwards to allow removing elements in the loop.
for (int i = mConnections.Length() - 1; i >= 0; --i) {
WeakPtr<PresentationConnection> connection = mConnections[i];
if (!connection) {
// The connection was destroyed. Remove it from the list.
mConnections.RemoveElementAt(i);
continue;
}
if (connection->Equals(aWindowId, aId)) {
RefPtr<PresentationConnection> matchedConnection = connection.get();
return matchedConnection.forget();
}
}
return nullptr;
}
} // namespace dom
} // namespace mozilla
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