gecko-dev/dom/base/ChromeMessageSender.cpp

42 строки
1.7 KiB
C++

/* -*- 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 "mozilla/dom/ChromeMessageSender.h"
#include "mozilla/dom/MessageManagerBinding.h"
namespace mozilla {
namespace dom {
ChromeMessageSender::ChromeMessageSender(ipc::MessageManagerCallback* aCallback,
ChromeMessageBroadcaster* aParentManager,
MessageManagerFlags aFlags)
: MessageSender(aCallback, aParentManager, aFlags | MessageManagerFlags::MM_CHROME)
{
MOZ_ASSERT(!(aFlags & ~(MessageManagerFlags::MM_GLOBAL |
MessageManagerFlags::MM_PROCESSMANAGER |
MessageManagerFlags::MM_OWNSCALLBACK)));
// This is a bit hackish. We attach to the parent, but only if we have a callback. We
// don't have a callback for the frame message manager, and for parent process message
// managers (except the parent in-process message manager). In those cases we wait until
// the child process is running (see MessageSender::InitWithCallback).
if (aParentManager && mCallback) {
aParentManager->AddChildManager(this);
}
}
JSObject*
ChromeMessageSender::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto)
{
MOZ_ASSERT(nsContentUtils::IsSystemCaller(aCx));
return ChromeMessageSenderBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla