Dogcows Code - chaz/openbox/blob - openbox/dispatch.c

   1 #include "dispatch.h"
   2 #include "extensions.h"
   3
   4 #include <glib.h>
   5
   6 typedef struct {
   7     EventHandler h;
   8     void *data;
   9 } Func;
  10
  11 /* an array of GSList*s of Func*s */
  12 static GSList **funcs;
  13
  14 void dispatch_startup()
  15 {
  16     guint i;
  17     EventType j;
  18
  19     i = 0;
  20     j = EVENT_RANGE;
  21     while (j > 1) {
  22         j >>= 1;
  23         ++i;
  24     }
  25     funcs = g_new(GSList*, i);
  26
  27     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
  28         funcs[i] = NULL;
  29 }
  30
  31 void dispatch_shutdown()
  32 {
  33     guint i;
  34     EventType j;
  35     GSList *it;
  36
  37     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1) {
  38         for (it = funcs[i]; it != NULL; it = it->next)
  39             g_free(it->data);
  40         g_slist_free(funcs[i]);
  41         funcs[i] = NULL;
  42     }
  43
  44     g_free(funcs);
  45 }
  46
  47 void dispatch_register(EventMask mask, EventHandler h, void *data)
  48 {
  49     guint i;
  50     EventType j;
  51     GSList *it, *next;
  52     EventMask m;
  53     Func *f;
  54
  55     /* add to masks it needs to be registered for */
  56     m = mask;
  57     while (m) {
  58         for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
  59             if (m & j) {
  60                 for (it = funcs[i]; it != NULL; it = it->next) {
  61                     f = it->data;
  62                     if (f->h == h && f->data == data)
  63                         break;
  64                 }
  65                 if (it == NULL) { /* wasn't already regged */
  66                     f = g_new(Func, 1);
  67                     f->h = h;
  68                     f->data = data;
  69                     funcs[i] = g_slist_append(funcs[i], f);
  70                 }
  71                 m ^= j; /* remove from the mask */
  72             }
  73         g_assert(j >= EVENT_RANGE); /* an invalid event is in the mask */
  74     }
  75
  76     /* remove from masks its not registered for anymore */
  77     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1) {
  78         if (!(j & mask))
  79             for (it = funcs[i]; it != NULL; it = next) {
  80                 next = it->next;
  81                 f = it->data;
  82                 if (f->h == h && f->data == data) {
  83                     g_free(f);
  84                     funcs[i] = g_slist_delete_link(funcs[i], it);
  85                 }
  86             }
  87     }
  88 }
  89
  90 void dispatch_x(XEvent *xe, Client *c)
  91 {
  92     EventType e;
  93     guint i;
  94     GSList *it;
  95     ObEvent obe;
  96
  97     switch (xe->type) {
  98     case EnterNotify:
  99         e = Event_X_EnterNotify;
 100         break;
 101     case LeaveNotify:
 102         e = Event_X_LeaveNotify;
 103         break;
 104     case KeyPress:
 105         e = Event_X_KeyPress;
 106         break;
 107     case KeyRelease:
 108         e = Event_X_KeyRelease;
 109         break;
 110     case ButtonPress:
 111         e = Event_X_ButtonPress;
 112         break;
 113     case ButtonRelease:
 114         e = Event_X_ButtonRelease;
 115         break;
 116     case MotionNotify:
 117         e = Event_X_MotionNotify;
 118         break;
 119     default:
 120         /* XKB events */
 121         if (xe->type == extensions_xkb_event_basep) {
 122             switch (((XkbAnyEvent*)&e)->xkb_type) {
 123             case XkbBellNotify:
 124                 e = Event_X_Bell;
 125                 break;
 126             }
 127         }
 128         return;
 129     }
 130
 131     obe.type = e;
 132     obe.data.x.e = xe;
 133     obe.data.x.client = c;
 134
 135     i = 0;
 136     while (e > 1) {
 137         e >>= 1;
 138         ++i;
 139     }
 140
 141     for (it = funcs[i]; it != NULL; it = it->next) {
 142         Func *f = it->data;
 143         f->h(&obe, f->data);
 144     }
 145 }
 146
 147 void dispatch_client(EventType e, Client *c, int num0, int num1)
 148 {
 149     guint i;
 150     GSList *it;
 151     ObEvent obe;
 152
 153     g_assert(c != NULL);
 154
 155     obe.type = e;
 156     obe.data.c.client = c;
 157     obe.data.c.num[0] = num0;
 158     obe.data.c.num[1] = num1;
 159
 160     i = 0;
 161     while (e > 1) {
 162         e >>= 1;
 163         ++i;
 164     }
 165
 166     for (it = funcs[i]; it != NULL; it = it->next) {
 167         Func *f = it->data;
 168         f->h(&obe, f->data);
 169     }
 170 }
 171
 172 void dispatch_ob(EventType e, int num0, int num1)
 173 {
 174     guint i;
 175     GSList *it;
 176     ObEvent obe;
 177
 178     obe.type = e;
 179     obe.data.o.num[0] = num0;
 180     obe.data.o.num[1] = num1;
 181
 182     i = 0;
 183     while (e > 1) {
 184         e >>= 1;
 185         ++i;
 186     }
 187
 188     for (it = funcs[i]; it != NULL; it = it->next) {
 189         Func *f = it->data;
 190         f->h(&obe, f->data);
 191     }
 192 }
 193
 194 void dispatch_signal(int signal)
 195 {
 196     guint i;
 197     EventType e = Event_Signal;
 198     GSList *it;
 199     ObEvent obe;
 200
 201     obe.type = e;
 202     obe.data.s.signal = signal;
 203
 204     i = 0;
 205     while (e > 1) {
 206         e >>= 1;
 207         ++i;
 208     }
 209
 210     for (it = funcs[i]; it != NULL; it = it->next) {
 211         Func *f = it->data;
 212         f->h(&obe, f->data);
 213     }
 214 }