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

   1 #include "openbox.h"
   2 #include "config.h"
   3 #include "xerror.h"
   4 #include "action.h"
   5 #include "event.h"
   6 #include "client.h"
   7 #include "prop.h"
   8 #include "grab.h"
   9 #include "frame.h"
  10 #include "translate.h"
  11 #include "mouse.h"
  12 #include <glib.h>
  13
  14 typedef struct {
  15     guint state;
  16     guint button;
  17     GSList *actions[OB_NUM_MOUSE_ACTIONS]; /* lists of Action pointers */
  18 } ObMouseBinding;
  19
  20 #define FRAME_CONTEXT(co, cl) ((cl && cl->type != OB_CLIENT_TYPE_DESKTOP) ? \
  21                                co == OB_FRAME_CONTEXT_FRAME : FALSE)
  22 #define CLIENT_CONTEXT(co, cl) ((cl && cl->type == OB_CLIENT_TYPE_DESKTOP) ? \
  23                                 co == OB_FRAME_CONTEXT_DESKTOP : \
  24                                 co == OB_FRAME_CONTEXT_CLIENT)
  25
  26 /* Array of GSList*s of ObMouseBinding*s. */
  27 static GSList *bound_contexts[OB_FRAME_NUM_CONTEXTS];
  28
  29 ObFrameContext mouse_button_frame_context(ObFrameContext context,
  30                                           guint button)
  31 {
  32     GSList *it;
  33     ObFrameContext x = context;
  34
  35     for (it = bound_contexts[context]; it; it = g_slist_next(it)) {
  36         ObMouseBinding *b = it->data;
  37
  38         if (b->button == button)
  39             return context;
  40     }
  41
  42     switch (context) {
  43     case OB_FRAME_CONTEXT_NONE:
  44     case OB_FRAME_CONTEXT_DESKTOP:
  45     case OB_FRAME_CONTEXT_CLIENT:
  46     case OB_FRAME_CONTEXT_TITLEBAR:
  47     case OB_FRAME_CONTEXT_HANDLE:
  48     case OB_FRAME_CONTEXT_FRAME:
  49         break;
  50     case OB_FRAME_CONTEXT_BLCORNER:
  51     case OB_FRAME_CONTEXT_BRCORNER:
  52         x = OB_FRAME_CONTEXT_HANDLE;
  53         break;
  54     case OB_FRAME_CONTEXT_TLCORNER:
  55     case OB_FRAME_CONTEXT_TRCORNER:
  56     case OB_FRAME_CONTEXT_MAXIMIZE:
  57     case OB_FRAME_CONTEXT_ALLDESKTOPS:
  58     case OB_FRAME_CONTEXT_SHADE:
  59     case OB_FRAME_CONTEXT_ICONIFY:
  60     case OB_FRAME_CONTEXT_ICON:
  61     case OB_FRAME_CONTEXT_CLOSE:
  62         x = OB_FRAME_CONTEXT_TITLEBAR;
  63         break;
  64     case OB_FRAME_NUM_CONTEXTS:
  65         g_assert_not_reached();
  66     }
  67
  68     return x;
  69 }
  70
  71 void mouse_grab_for_client(ObClient *client, gboolean grab)
  72 {
  73     int i;
  74     GSList *it;
  75
  76     for (i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i)
  77         for (it = bound_contexts[i]; it != NULL; it = g_slist_next(it)) {
  78             /* grab/ungrab the button */
  79             ObMouseBinding *b = it->data;
  80             Window win;
  81             int mode;
  82             unsigned int mask;
  83
  84             if (FRAME_CONTEXT(i, client)) {
  85                 win = client->frame->window;
  86                 mode = GrabModeAsync;
  87                 mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
  88             } else if (CLIENT_CONTEXT(i, client)) {
  89                 win = client->frame->plate;
  90                 mode = GrabModeSync; /* this is handled in event */
  91                 mask = ButtonPressMask; /* can't catch more than this with Sync
  92                                            mode the release event is
  93                                            manufactured in event() */
  94             } else continue;
  95
  96             if (grab)
  97                 grab_button_full(b->button, b->state, win, mask, mode,
  98                                  OB_CURSOR_NONE);
  99             else
 100                 ungrab_button(b->button, b->state, win);
 101         }
 102 }
 103
 104 static void grab_all_clients(gboolean grab)
 105 {
 106     GList *it;
 107
 108     for (it = client_list; it != NULL; it = it->next)
 109         mouse_grab_for_client(it->data, grab);
 110 }
 111
 112 static void clearall()
 113 {
 114     int i;
 115     GSList *it;
 116
 117     for(i = 0; i < OB_FRAME_NUM_CONTEXTS; ++i) {
 118         for (it = bound_contexts[i]; it != NULL; it = it->next) {
 119             ObMouseBinding *b = it->data;
 120             int j;
 121
 122             for (j = 0; j < OB_NUM_MOUSE_ACTIONS; ++j) {
 123                 GSList *it;
 124
 125                 for (it = b->actions[j]; it; it = it->next)
 126                     action_free(it->data);
 127                 g_slist_free(b->actions[j]);
 128             }
 129             g_free(b);
 130         }
 131         g_slist_free(bound_contexts[i]);
 132         bound_contexts[i] = NULL;
 133     }
 134 }
 135
 136 static gboolean fire_binding(ObMouseAction a, ObFrameContext context,
 137                              ObClient *c, guint state,
 138                              guint button, int x, int y)
 139 {
 140     GSList *it;
 141     ObMouseBinding *b;
 142
 143     for (it = bound_contexts[context]; it != NULL; it = it->next) {
 144         b = it->data;
 145         if (b->state == state && b->button == button)
 146             break;
 147     }
 148     /* if not bound, then nothing to do! */
 149     if (it == NULL) return FALSE;
 150
 151     for (it = b->actions[a]; it; it = it->next)
 152         action_run_mouse(it->data, c, state, button, x, y);
 153     return TRUE;
 154 }
 155
 156 void mouse_event(ObClient *client, XEvent *e)
 157 {
 158     static Time ltime;
 159     static guint button = 0, state = 0, lbutton = 0;
 160     static Window lwindow = None;
 161     static int px, py;
 162
 163     ObFrameContext context;
 164     gboolean click = FALSE;
 165     gboolean dclick = FALSE;
 166
 167     switch (e->type) {
 168     case ButtonPress:
 169         context = frame_context(client, e->xany.window);
 170         context = mouse_button_frame_context(context, e->xbutton.button);
 171
 172         px = e->xbutton.x_root;
 173         py = e->xbutton.y_root;
 174         button = e->xbutton.button;
 175         state = e->xbutton.state;
 176
 177         fire_binding(OB_MOUSE_ACTION_PRESS, context,
 178                      client, e->xbutton.state,
 179                      e->xbutton.button,
 180                      e->xbutton.x_root, e->xbutton.y_root);
 181
 182         if (CLIENT_CONTEXT(context, client)) {
 183             /* Replay the event, so it goes to the client*/
 184             XAllowEvents(ob_display, ReplayPointer, event_lasttime);
 185             /* Fall through to the release case! */
 186         } else
 187             break;
 188
 189     case ButtonRelease:
 190         context = frame_context(client, e->xany.window);
 191         context = mouse_button_frame_context(context, e->xbutton.button);
 192
 193         if (e->xbutton.button == button) {
 194             /* clicks are only valid if its released over the window */
 195             int junk1, junk2;
 196             Window wjunk;
 197             guint ujunk, b, w, h;
 198             xerror_set_ignore(TRUE);
 199             junk1 = XGetGeometry(ob_display, e->xbutton.window,
 200                                  &wjunk, &junk1, &junk2, &w, &h, &b, &ujunk);
 201             xerror_set_ignore(FALSE);
 202             if (junk1) {
 203                 if (e->xbutton.x >= (signed)-b &&
 204                     e->xbutton.y >= (signed)-b &&
 205                     e->xbutton.x < (signed)(w+b) &&
 206                     e->xbutton.y < (signed)(h+b)) {
 207                     click = TRUE;
 208                     /* double clicks happen if there were 2 in a row! */
 209                     if (lbutton == button &&
 210                         lwindow == e->xbutton.window &&
 211                         e->xbutton.time - config_mouse_dclicktime <=
 212                         ltime) {
 213                         dclick = TRUE;
 214                         lbutton = 0;
 215                     } else {
 216                         lbutton = button;
 217                         lwindow = e->xbutton.window;
 218                     }
 219                 } else {
 220                     lbutton = 0;
 221                     lwindow = None;
 222                 }
 223             }
 224
 225             button = 0;
 226             state = 0;
 227             ltime = e->xbutton.time;
 228         }
 229         fire_binding(OB_MOUSE_ACTION_RELEASE, context,
 230                      client, e->xbutton.state,
 231                      e->xbutton.button,
 232                      e->xbutton.x_root, e->xbutton.y_root);
 233         if (click)
 234             fire_binding(OB_MOUSE_ACTION_CLICK, context,
 235                          client, e->xbutton.state,
 236                          e->xbutton.button,
 237                          e->xbutton.x_root,
 238                          e->xbutton.y_root);
 239         if (dclick)
 240             fire_binding(OB_MOUSE_ACTION_DOUBLE_CLICK, context,
 241                          client, e->xbutton.state,
 242                          e->xbutton.button,
 243                          e->xbutton.x_root,
 244                          e->xbutton.y_root);
 245         break;
 246
 247     case MotionNotify:
 248         if (button) {
 249             context = frame_context(client, e->xany.window);
 250             context = mouse_button_frame_context(context, button);
 251
 252             if (ABS(e->xmotion.x_root - px) >=
 253                 config_mouse_threshold ||
 254                 ABS(e->xmotion.y_root - py) >=
 255                 config_mouse_threshold) {
 256
 257                 /* You can't drag on buttons */
 258                 if (context == OB_FRAME_CONTEXT_MAXIMIZE ||
 259                     context == OB_FRAME_CONTEXT_ALLDESKTOPS ||
 260                     context == OB_FRAME_CONTEXT_SHADE ||
 261                     context == OB_FRAME_CONTEXT_ICONIFY ||
 262                     context == OB_FRAME_CONTEXT_ICON ||
 263                     context == OB_FRAME_CONTEXT_CLOSE)
 264                     break;
 265
 266                 fire_binding(OB_MOUSE_ACTION_MOTION, context,
 267                              client, state, button, px, py);
 268                 button = 0;
 269                 state = 0;
 270             }
 271         }
 272         break;
 273
 274     default:
 275         g_assert_not_reached();
 276     }
 277 }
 278
 279 gboolean mouse_bind(char *buttonstr, char *contextstr, ObMouseAction mact,
 280                     ObAction *action)
 281 {
 282     guint state, button;
 283     ObFrameContext context;
 284     ObMouseBinding *b;
 285     GSList *it;
 286
 287     if (!translate_button(buttonstr, &state, &button)) {
 288         g_warning("invalid button '%s'", buttonstr);
 289         return FALSE;
 290     }
 291
 292     contextstr = g_ascii_strdown(contextstr, -1);
 293     context = frame_context_from_string(contextstr);
 294     if (!context) {
 295         g_warning("invalid context '%s'", contextstr);
 296         g_free(contextstr);
 297         return FALSE;
 298     }
 299     g_free(contextstr);
 300
 301     for (it = bound_contexts[context]; it != NULL; it = it->next){
 302         b = it->data;
 303         if (b->state == state && b->button == button) {
 304             b->actions[mact] = g_slist_append(b->actions[mact], action);
 305             return TRUE;
 306         }
 307     }
 308
 309     /* when there are no modifiers in the binding, then the action cannot
 310        be interactive */
 311     if (!state && action->data.any.interactive) {
 312         action->data.any.interactive = FALSE;
 313         action->data.inter.final = TRUE;
 314     }
 315
 316     /* add the binding */
 317     b = g_new0(ObMouseBinding, 1);
 318     b->state = state;
 319     b->button = button;
 320     b->actions[mact] = g_slist_append(NULL, action);
 321     bound_contexts[context] = g_slist_append(bound_contexts[context], b);
 322
 323     return TRUE;
 324 }
 325
 326 void mouse_startup(gboolean reconfig)
 327 {
 328     grab_all_clients(TRUE);
 329 }
 330
 331 void mouse_shutdown(gboolean reconfig)
 332 {
 333     grab_all_clients(FALSE);
 334     clearall();
 335 }