gecko-dev/toolkit/components/places/PageIconProtocolHandler.h

44 строки
1.2 KiB
C++

/* 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/. */
#ifndef mozilla_places_PageIconProtocolHandler_h
#define mozilla_places_PageIconProtocolHandler_h
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/StaticPtr.h"
#include "nsIProtocolHandler.h"
#include "nsThreadUtils.h"
#include "nsWeakReference.h"
namespace mozilla {
namespace places {
class PageIconProtocolHandler final : public nsIProtocolHandler,
public nsSupportsWeakReference {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIPROTOCOLHANDLER
static already_AddRefed<PageIconProtocolHandler> GetSingleton() {
MOZ_ASSERT(NS_IsMainThread());
if (MOZ_UNLIKELY(!sSingleton)) {
sSingleton = new PageIconProtocolHandler();
ClearOnShutdown(&sSingleton);
}
return do_AddRef(sSingleton);
}
private:
~PageIconProtocolHandler() = default;
nsresult NewChannelInternal(nsIURI*, nsILoadInfo*, nsIChannel**);
static StaticRefPtr<PageIconProtocolHandler> sSingleton;
};
} // namespace places
} // namespace mozilla
#endif