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[wxWidgets.git] / src / mac / macnotfy.cpp
1 /* -------------------------------------------------------------------------
2 * Project: Mac Notifier Support
3 * Name: macnotfy.c
4 * Author: Stefan CSomor
5 * Purpose: Mac Notifier main file
6 * CVSID: $Id$
7 * -------------------------------------------------------------------------
8 */
9
10 #include "wx/wx.h"
11 #include "wx/mac/macnotfy.h"
12
13 const short kMaxEvents = 1000 ;
14
15 struct wxMacNotificationEvents
16 {
17 short top ;
18 short bottom ;
19
20 wxMacNotificationProcPtr proc[kMaxEvents] ;
21 unsigned long events[kMaxEvents] ;
22 void* data[kMaxEvents] ;
23 } ;
24
25 typedef struct wxMacNotificationEvents wxMacNotificationEvents ;
26 wxMacNotificationEvents gMacNotificationEvents ;
27
28 ProcessSerialNumber gAppProcess ;
29
30 void wxMacWakeUp()
31 {
32 ProcessSerialNumber psn ;
33 Boolean isSame ;
34 psn.highLongOfPSN = 0 ;
35 psn.lowLongOfPSN = kCurrentProcess ;
36 SameProcess( &gAppProcess , &psn , &isSame ) ;
37 if ( isSame )
38 {
39 PostEvent( nullEvent , 0 ) ;
40 }
41 else
42 {
43 WakeUpProcess( &gAppProcess ) ;
44 }
45 }
46
47 void wxMacCreateNotifierTable()
48 {
49 GetCurrentProcess(&gAppProcess);
50 gMacNotificationEvents.top = 0 ;
51 gMacNotificationEvents.bottom = 0 ;
52 for ( int i = 0 ; i < kMaxEvents ; ++i )
53 {
54 gMacNotificationEvents.proc[i] = NULL ;
55 gMacNotificationEvents.events[i] = NULL ;
56 gMacNotificationEvents.data[i] = NULL ;
57 }
58 }
59
60 void wxMacDestroyNotifierTable()
61 {
62 }
63
64 wxMacNotifierTableRef wxMacGetNotifierTable()
65 {
66 return (wxMacNotifierTableRef) &gMacNotificationEvents ;
67 }
68
69 void wxMacAddEvent(
70 wxMacNotifierTableRef table ,
71 wxMacNotificationProcPtr handler ,
72 unsigned long event ,
73 void* data ,
74 short wakeUp )
75 {
76 wxMacNotificationEvents *e = (wxMacNotificationEvents *) table ;
77 /* this should be protected eventually */
78 short index = e->top++ ;
79
80 if ( e->top == kMaxEvents )
81 e->top = 0 ;
82
83 e->proc[index] = handler ;
84 e->events[index] = event ;
85 e->data[index] = data ;
86 if ( wakeUp )
87 wxMacWakeUp() ;
88 }
89
90 bool gInProcessing = false ;
91
92 void wxMacRemoveAllNotifiersForData( wxMacNotifierTableRef table , void* data )
93 {
94 wxMacNotificationEvents *e = (wxMacNotificationEvents *) table ;
95 /* this should be protected eventually */
96 short index = e->bottom ;
97
98 while ( e->top != index )
99 {
100 if ( index == kMaxEvents )
101 index = 0 ;
102 if ( e->data[index] == data )
103 e->data[index] = NULL ;
104 index++ ;
105 }
106 }
107
108 void wxMacProcessNotifierEvents()
109 {
110 // if ( gInProcessing )
111 // return ;
112
113 gInProcessing = true ;
114 while ( gMacNotificationEvents.top != gMacNotificationEvents.bottom )
115 {
116 // consume event at bottom
117 short index = gMacNotificationEvents.bottom++ ;
118 if ( gMacNotificationEvents.bottom == kMaxEvents )
119 gMacNotificationEvents.bottom = 0 ;
120 void* data = gMacNotificationEvents.data[index] ;
121 unsigned long event = gMacNotificationEvents.events[index] ;
122 wxMacNotificationProcPtr handler = gMacNotificationEvents.proc[index] ;
123
124 gMacNotificationEvents.data[index] = NULL ;
125 gMacNotificationEvents.events[index] = NULL ;
126 gMacNotificationEvents.proc[index] = NULL ;
127
128 handler( event , data ) ;
129 }
130 gInProcessing = false ;
131 }
132
133 void wxMacProcessNotifierAndPendingEvents()
134 {
135 wxMacProcessNotifierEvents() ;
136 wxTheApp->ProcessPendingEvents() ;
137 }