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_new0(GSList*, i);
  26 }
  27
  28 void dispatch_shutdown()
  29 {
  30     guint i;
  31     EventType j;
  32     GSList *it;
  33
  34     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1) {
  35         for (it = funcs[i]; it != NULL; it = it->next)
  36             g_free(it->data);
  37         g_slist_free(funcs[i]);
  38         funcs[i] = NULL;
  39     }
  40
  41     g_free(funcs);
  42 }
  43
  44 void dispatch_register(EventMask mask, EventHandler h, void *data)
  45 {
  46     guint i;
  47     EventType j;
  48     GSList *it, *next;
  49     EventMask m;
  50     Func *f;
  51
  52     /* add to masks it needs to be registered for */
  53     m = mask;
  54     while (m) {
  55         for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
  56             if (m & j) {
  57                 for (it = funcs[i]; it != NULL; it = it->next) {
  58                     f = it->data;
  59                     if (f->h == h && f->data == data)
  60                         break;
  61                 }
  62                 if (it == NULL) { /* wasn't already regged */
  63                     f = g_new(Func, 1);
  64                     f->h = h;
  65                     f->data = data;
  66                     funcs[i] = g_slist_append(funcs[i], f);
  67                 }
  68                 m ^= j; /* remove from the mask */
  69             }
  70         g_assert(j >= EVENT_RANGE); /* an invalid event is in the mask */
  71     }
  72
  73     /* remove from masks its not registered for anymore */
  74     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1) {
  75         if (!(j & mask))
  76             for (it = funcs[i]; it != NULL; it = next) {
  77                 next = it->next;
  78                 f = it->data;
  79                 if (f->h == h && f->data == data) {
  80                     g_free(f);
  81                     funcs[i] = g_slist_delete_link(funcs[i], it);
  82                 }
  83             }
  84     }
  85 }
  86
  87 void dispatch_x(XEvent *xe, Client *c)
  88 {
  89     EventType e;
  90     guint i;
  91     GSList *it;
  92     ObEvent obe;
  93
  94     switch (xe->type) {
  95     case EnterNotify:
  96         e = Event_X_EnterNotify;
  97         break;
  98     case LeaveNotify:
  99         e = Event_X_LeaveNotify;
 100         break;
 101     case KeyPress:
 102         e = Event_X_KeyPress;
 103         break;
 104     case KeyRelease:
 105         e = Event_X_KeyRelease;
 106         break;
 107     case ButtonPress:
 108         e = Event_X_ButtonPress;
 109         break;
 110     case ButtonRelease:
 111         e = Event_X_ButtonRelease;
 112         break;
 113     case MotionNotify:
 114         e = Event_X_MotionNotify;
 115         break;
 116     default:
 117         /* XKB events */
 118         if (xe->type == extensions_xkb_event_basep) {
 119             switch (((XkbAnyEvent*)&e)->xkb_type) {
 120             case XkbBellNotify:
 121                 e = Event_X_Bell;
 122                 break;
 123             }
 124         }
 125         return;
 126     }
 127
 128     obe.type = e;
 129     obe.data.x.e = xe;
 130     obe.data.x.client = c;
 131
 132     i = 0;
 133     while (e > 1) {
 134         e >>= 1;
 135         ++i;
 136     }
 137
 138     for (it = funcs[i]; it != NULL; it = it->next) {
 139         Func *f = it->data;
 140         f->h(&obe, f->data);
 141     }
 142 }
 143
 144 void dispatch_client(EventType e, Client *c, int num0, int num1)
 145 {
 146     guint i;
 147     GSList *it;
 148     ObEvent obe;
 149
 150     g_assert(c != NULL);
 151
 152     obe.type = e;
 153     obe.data.c.client = c;
 154     obe.data.c.num[0] = num0;
 155     obe.data.c.num[1] = num1;
 156
 157     i = 0;
 158     while (e > 1) {
 159         e >>= 1;
 160         ++i;
 161     }
 162
 163     for (it = funcs[i]; it != NULL; it = it->next) {
 164         Func *f = it->data;
 165         f->h(&obe, f->data);
 166     }
 167 }
 168
 169 void dispatch_ob(EventType e, int num0, int num1)
 170 {
 171     guint i;
 172     GSList *it;
 173     ObEvent obe;
 174
 175     obe.type = e;
 176     obe.data.o.num[0] = num0;
 177     obe.data.o.num[1] = num1;
 178
 179     i = 0;
 180     while (e > 1) {
 181         e >>= 1;
 182         ++i;
 183     }
 184
 185     for (it = funcs[i]; it != NULL; it = it->next) {
 186         Func *f = it->data;
 187         f->h(&obe, f->data);
 188     }
 189 }
 190
 191 void dispatch_signal(int signal)
 192 {
 193     guint i;
 194     EventType e = Event_Signal;
 195     GSList *it;
 196     ObEvent obe;
 197
 198     obe.type = e;
 199     obe.data.s.signal = signal;
 200
 201     i = 0;
 202     while (e > 1) {
 203         e >>= 1;
 204         ++i;
 205     }
 206
 207     for (it = funcs[i]; it != NULL; it = it->next) {
 208         Func *f = it->data;
 209         f->h(&obe, f->data);
 210     }
 211 }
 212
 213 void dispatch_move(Client *c, int *x, int *y)
 214 {
 215     guint i;
 216     EventType e = Event_Client_Moving;
 217     GSList *it;
 218     ObEvent obe;
 219
 220     obe.type = e;
 221     obe.data.c.client = c;
 222     obe.data.c.num[0] = *x;
 223     obe.data.c.num[1] = *y;
 224
 225     i = 0;
 226     while (e > 1) {
 227         e >>= 1;
 228         ++i;
 229     }
 230
 231     for (it = funcs[i]; it != NULL; it = it->next) {
 232         Func *f = it->data;
 233         f->h(&obe, f->data);
 234     }
 235
 236     *x = obe.data.c.num[0];
 237     *y = obe.data.c.num[1];
 238 }