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

   1 #include "dispatch.h"
   2 #include "extensions.h"
   3 #include "client.h"
   4
   5 #include <glib.h>
   6
   7 typedef struct {
   8     EventHandler h;
   9     void *data;
  10 } Func;
  11
  12 /* an array of GSList*s of Func*s */
  13 static GSList **funcs;
  14
  15 void dispatch_startup()
  16 {
  17     guint i;
  18     EventType j;
  19
  20     i = 0;
  21     j = EVENT_RANGE;
  22     while (j > 1) {
  23         j >>= 1;
  24         ++i;
  25     }
  26     funcs = g_new0(GSList*, i);
  27 }
  28
  29 void dispatch_shutdown()
  30 {
  31     guint i;
  32     EventType j;
  33     GSList *it;
  34
  35     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1) {
  36         for (it = funcs[i]; it != NULL; it = it->next)
  37             g_free(it->data);
  38         g_slist_free(funcs[i]);
  39         funcs[i] = NULL;
  40     }
  41
  42     g_free(funcs);
  43 }
  44
  45 void dispatch_register(EventMask mask, EventHandler h, void *data)
  46 {
  47     guint i;
  48     EventType j;
  49     GSList *it, *next;
  50     EventMask m;
  51     Func *f;
  52
  53     /* add to masks it needs to be registered for */
  54     m = mask;
  55     while (m) {
  56         for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1)
  57             if (m & j) {
  58                 for (it = funcs[i]; it != NULL; it = it->next) {
  59                     f = it->data;
  60                     if (f->h == h && f->data == data)
  61                         break;
  62                 }
  63                 if (it == NULL) { /* wasn't already regged */
  64                     f = g_new(Func, 1);
  65                     f->h = h;
  66                     f->data = data;
  67                     funcs[i] = g_slist_append(funcs[i], f);
  68                 }
  69                 m ^= j; /* remove from the mask */
  70             }
  71         g_assert(j >= EVENT_RANGE); /* an invalid event is in the mask */
  72     }
  73
  74     /* remove from masks its not registered for anymore */
  75     for (i = 0, j = 1; j < EVENT_RANGE; ++i, j <<= 1) {
  76         if (!(j & mask))
  77             for (it = funcs[i]; it != NULL; it = next) {
  78                 next = it->next;
  79                 f = it->data;
  80                 if (f->h == h && f->data == data) {
  81                     g_free(f);
  82                     funcs[i] = g_slist_delete_link(funcs[i], it);
  83                 }
  84             }
  85     }
  86 }
  87
  88 void dispatch_x(XEvent *xe, ObClient *c)
  89 {
  90     EventType e;
  91     guint i;
  92     GSList *it;
  93     ObEvent obe;
  94
  95     switch (xe->type) {
  96     case EnterNotify:
  97         e = Event_X_EnterNotify;
  98         break;
  99     case LeaveNotify:
 100         e = Event_X_LeaveNotify;
 101         break;
 102     case KeyPress:
 103         e = Event_X_KeyPress;
 104         break;
 105     case KeyRelease:
 106         e = Event_X_KeyRelease;
 107         break;
 108     case ButtonPress:
 109         e = Event_X_ButtonPress;
 110         break;
 111     case ButtonRelease:
 112         e = Event_X_ButtonRelease;
 113         break;
 114     case MotionNotify:
 115         e = Event_X_MotionNotify;
 116         break;
 117     default:
 118         /* XKB events */
 119         if (xe->type == extensions_xkb_event_basep) {
 120             switch (((XkbAnyEvent*)&e)->xkb_type) {
 121             case XkbBellNotify:
 122                 e = Event_X_Bell;
 123                 break;
 124             }
 125         }
 126         return;
 127     }
 128
 129     obe.type = e;
 130     obe.data.x.e = xe;
 131     obe.data.x.client = c;
 132
 133     i = 0;
 134     while (e > 1) {
 135         e >>= 1;
 136         ++i;
 137     }
 138
 139     for (it = funcs[i]; it != NULL; it = it->next) {
 140         Func *f = it->data;
 141         f->h(&obe, f->data);
 142     }
 143 }
 144
 145 void dispatch_client(EventType e, ObClient *c, int num0, int num1)
 146 {
 147     guint i;
 148     GSList *it;
 149     ObEvent obe;
 150
 151     g_assert(c != NULL);
 152
 153     obe.type = e;
 154     obe.data.c.client = c;
 155     obe.data.c.num[0] = num0;
 156     obe.data.c.num[1] = num1;
 157     obe.data.c.num[2] = 0;
 158
 159     i = 0;
 160     while (e > 1) {
 161         e >>= 1;
 162         ++i;
 163     }
 164
 165     for (it = funcs[i]; it != NULL; it = it->next) {
 166         Func *f = it->data;
 167         f->h(&obe, f->data);
 168     }
 169 }
 170
 171 void dispatch_ob(EventType e, int num0, int num1)
 172 {
 173     guint i;
 174     GSList *it;
 175     ObEvent obe;
 176
 177     obe.type = e;
 178     obe.data.o.num[0] = num0;
 179     obe.data.o.num[1] = num1;
 180
 181     i = 0;
 182     while (e > 1) {
 183         e >>= 1;
 184         ++i;
 185     }
 186
 187     for (it = funcs[i]; it != NULL; it = it->next) {
 188         Func *f = it->data;
 189         f->h(&obe, f->data);
 190     }
 191 }
 192
 193 void dispatch_signal(int signal)
 194 {
 195     guint i;
 196     EventType e = Event_Signal;
 197     GSList *it;
 198     ObEvent obe;
 199
 200     obe.type = e;
 201     obe.data.s.signal = signal;
 202
 203     i = 0;
 204     while (e > 1) {
 205         e >>= 1;
 206         ++i;
 207     }
 208
 209     for (it = funcs[i]; it != NULL; it = it->next) {
 210         Func *f = it->data;
 211         f->h(&obe, f->data);
 212     }
 213 }
 214
 215 void dispatch_move(ObClient *c, int *x, int *y)
 216 {
 217     guint i;
 218     GSList *it;
 219     EventType e = Event_Client_Moving;
 220     ObEvent obe;
 221
 222     obe.type = e;
 223     obe.data.c.client = c;
 224     obe.data.c.num[0] = *x;
 225     obe.data.c.num[1] = *y;
 226
 227     i = 0;
 228     while (e > 1) {
 229         e >>= 1;
 230         ++i;
 231     }
 232
 233     for (it = funcs[i]; it != NULL; it = it->next) {
 234         Func *f = it->data;
 235         f->h(&obe, f->data);
 236     }
 237
 238     *x = obe.data.c.num[0];
 239     *y = obe.data.c.num[1];
 240 }
 241
 242 void dispatch_resize(ObClient *c, int *w, int *h, ObCorner corner)
 243 {
 244     guint i;
 245     GSList *it;
 246     EventType e = Event_Client_Resizing;
 247     ObEvent obe;
 248
 249     obe.type = e;
 250     obe.data.c.client = c;
 251     obe.data.c.num[0] = *w;
 252     obe.data.c.num[1] = *h;
 253     obe.data.c.num[2] = corner;
 254
 255     i = 0;
 256     while (e > 1) {
 257         e >>= 1;
 258         ++i;
 259     }
 260
 261     for (it = funcs[i]; it != NULL; it = it->next) {
 262         Func *f = it->data;
 263         f->h(&obe, f->data);
 264     }
 265
 266     *w = obe.data.c.num[0];
 267     *h = obe.data.c.num[1];
 268 }