1/*
2Open Tracker License
3
4Terms and Conditions
5
6Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
7
8Permission is hereby granted, free of charge, to any person obtaining a copy of
9this software and associated documentation files (the "Software"), to deal in
10the Software without restriction, including without limitation the rights to
11use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12of the Software, and to permit persons to whom the Software is furnished to do
13so, subject to the following conditions:
14
15The above copyright notice and this permission notice applies to all licensees
16and shall be included in all copies or substantial portions of the Software.
17
18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
20FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
23WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24
25Except as contained in this notice, the name of Be Incorporated shall not be
26used in advertising or otherwise to promote the sale, use or other dealings in
27this Software without prior written authorization from Be Incorporated.
28
29Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
30of Be Incorporated in the United States and other countries. Other brand product
31names are registered trademarks or trademarks of their respective holders.
32All rights reserved.
33*/
34
35//	PendingNodeMonitorCache is used to store node monitors that
36//	cannot be delivered yet because the corresponding model has not yet been
37//  added to a PoseView
38//
39//	The respective node montior messages are stored in a list and applied
40//  later, when their target shows up. They get nuked when they become too
41//  old.
42#ifndef __PENDING_NODEMONITOR_CACHE_H__
43#define __PENDING_NODEMONITOR_CACHE_H__
44
45
46#include <Message.h>
47#include <Node.h>
48
49#include "ObjectList.h"
50
51
52namespace BPrivate {
53
54class BPoseView;
55class BPose;
56
57class PendingNodeMonitorEntry {
58public:
59	PendingNodeMonitorEntry(const node_ref* node, const BMessage*);
60	const BMessage* NodeMonitor() const;
61	bool Match(const node_ref*) const;
62	bool TooOld(bigtime_t now) const;
63
64private:
65	bigtime_t fExpiresAfter;
66	BMessage fNodeMonitor;
67	node_ref fNode;
68};
69
70
71class PendingNodeMonitorCache {
72public:
73	PendingNodeMonitorCache();
74	~PendingNodeMonitorCache();
75
76	void Add(const BMessage*);
77	void RemoveEntries(const node_ref*);
78	void RemoveOldEntries();
79
80	void PoseCreatedOrMoved(BPoseView*, const BPose*);
81
82private:
83	BObjectList<PendingNodeMonitorEntry> fList;
84};
85
86} // namespace BPrivate
87
88using namespace BPrivate;
89
90#endif	// __PENDING_NODEMONITOR_CACHE_H__
91