| 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 | } |