1//------------------------------------------------------------------------------
2//	Copyright (c) 2001-2002, Haiku
3//
4//	Permission is hereby granted, free of charge, to any person obtaining a
5//	copy of this software and associated documentation files (the "Software"),
6//	to deal in the Software without restriction, including without limitation
7//	the rights to use, copy, modify, merge, publish, distribute, sublicense,
8//	and/or sell copies of the Software, and to permit persons to whom the
9//	Software is furnished to do so, subject to the following conditions:
10//
11//	The above copyright notice and this permission notice shall be included in
12//	all copies or substantial portions of the Software.
13//
14//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19//	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20//	DEALINGS IN THE SOFTWARE.
21//
22//	File Name:		EventMaskWatcher.h
23//	Author:			Ingo Weinhold (bonefish@users.sf.net)
24//	Description:	EventMaskWatcher is a Watcher extended by an event mask.
25//					EventMaskWatcherFilter filters EventMaskWatchers with
26//					respect to their event mask and a specific event.
27//------------------------------------------------------------------------------
28
29#ifndef EVENT_MASK_WATCHER_H
30#define EVENT_MASK_WATCHER_H
31
32#include "Watcher.h"
33
34// EventMaskWatcher
35class EventMaskWatcher : public Watcher {
36public:
37	EventMaskWatcher(const BMessenger &target, uint32 eventMask);
38
39	uint32 EventMask() const;
40
41private:
42	uint32	fEventMask;
43};
44
45// EventMaskWatcherFilter
46class EventMaskWatcherFilter : public WatcherFilter {
47public:
48	EventMaskWatcherFilter(uint32 event);
49
50	virtual bool Filter(Watcher *watcher, BMessage *message);
51
52private:
53	uint32	fEvent;
54};
55
56#endif	// EVENT_MASK_WATCHER_H
57