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