//------------------------------------------------------------------------------
//      Copyright (c) 2001-2002, Haiku
//
//      Permission is hereby granted, free of charge, to any person obtaining a
//      copy of this software and associated documentation files (the "Software"),
//      to deal in the Software without restriction, including without limitation
//      the rights to use, copy, modify, merge, publish, distribute, sublicense,
//      and/or sell copies of the Software, and to permit persons to whom the
//      Software is furnished to do so, subject to the following conditions:
//
//      The above copyright notice and this permission notice shall be included in
//      all copies or substantial portions of the Software.
//
//      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//      IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//      FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//      AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//      LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//      FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
//      DEALINGS IN THE SOFTWARE.
//
//      File Name:              EventMaskWatcher.h
//      Author:                 Ingo Weinhold (bonefish@users.sf.net)
//      Description:    EventMaskWatcher is a Watcher extended by an event mask.
//                                      EventMaskWatcherFilter filters EventMaskWatchers with
//                                      respect to their event mask and a specific event.
//------------------------------------------------------------------------------

#ifndef EVENT_MASK_WATCHER_H
#define EVENT_MASK_WATCHER_H

#include "Watcher.h"

// EventMaskWatcher
class EventMaskWatcher : public Watcher {
public:
        EventMaskWatcher(const BMessenger &target, uint32 eventMask);

        uint32 EventMask() const;

private:
        uint32  fEventMask;
};

// EventMaskWatcherFilter
class EventMaskWatcherFilter : public WatcherFilter {
public:
        EventMaskWatcherFilter(uint32 event);

        virtual bool Filter(Watcher *watcher, BMessage *message);

private:
        uint32  fEvent;
};

#endif  // EVENT_MASK_WATCHER_H