plugins/mouse/mouse.c

   1 #include "../../kernel/openbox.h"
   2 #include "../../kernel/dispatch.h"
   3 #include "../../kernel/action.h"
   4 #include "../../kernel/client.h"
   5 #include "../../kernel/frame.h"
   6 #include "../../kernel/grab.h"
   7 #include "../../kernel/engine.h"
   8 #include "translate.h"
   9 #include "mouse.h"
  10 #include <glib.h>
  11
  12 /* GData of GSList*s of PointerBinding*s. */
  13 static GData *bound_contexts;
  14
  15 struct foreach_grab_temp {
  16     Client *client;
  17     gboolean grab;
  18 };
  19
  20 static void foreach_grab(GQuark key, gpointer data, gpointer user_data)
  21 {
  22     struct foreach_grab_temp *d = user_data;
  23     GSList *it;
  24     for (it = data; it != NULL; it = it->next) {
  25         /* grab/ungrab the button */
  26         MouseBinding *b = it->data;
  27         Window win;
  28         int mode;
  29         unsigned int mask;
  30
  31         if (key == g_quark_try_string("frame")) {
  32             win = d->client->frame->window;
  33             mode = GrabModeAsync;
  34             mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
  35         } else if (key == g_quark_try_string("client")) {
  36             win = d->client->frame->plate;
  37             mode = GrabModeSync; /* this is handled in event */
  38             mask = ButtonPressMask; /* can't catch more than this with Sync
  39                                        mode the release event is manufactured
  40                                        in event */
  41         } else return;
  42
  43         if (d->grab)
  44             grab_button(b->button, b->state, win, mask, mode);
  45         else
  46             ungrab_button(b->button, b->state, win);
  47     }
  48 }
  49
  50 static void grab_for_client(Client *client, gboolean grab)
  51 {
  52     struct foreach_grab_temp bt;
  53     bt.client = client;
  54     bt.grab = grab;
  55     g_datalist_foreach(&bound_contexts, foreach_grab, &bt);
  56 }
  57
  58 static void grab_all_clients(gboolean grab)
  59 {
  60     GSList *it;
  61
  62     for (it = client_list; it != NULL; it = it->next)
  63         grab_for_client(it->data, grab);
  64 }
  65
  66 static void foreach_clear(GQuark key, gpointer data, gpointer user_data)
  67 {
  68     GSList *it;
  69     user_data = user_data;
  70     for (it = data; it != NULL; it = it->next) {
  71         int i;
  72
  73         MouseBinding *b = it->data;
  74         for (i = 0; i < NUM_MOUSEACTION; ++i)
  75             if (b->action[i] != NULL)
  76                 action_free(b->action[i]);
  77         g_free(b);
  78     }
  79     g_slist_free(data);
  80 }
  81
  82 static void fire_button(MouseAction a, GQuark context, Client *c, guint state,
  83                         guint button)
  84 {
  85     GSList *it;
  86     MouseBinding *b;
  87
  88     for (it = g_datalist_id_get_data(&bound_contexts, context);
  89          it != NULL; it = it->next) {
  90         b = it->data;
  91         if (b->state == state && b->button == button)
  92             break;
  93     }
  94     /* if not bound, then nothing to do! */
  95     if (it == NULL) return;
  96
  97     if (b->action[a] != NULL && b->action[a]->func != NULL) {
  98         b->action[a]->data.any.c = c;
  99
 100         g_assert(!(b->action[a]->func == action_move ||
 101                    b->action[a]->func == action_resize));
 102
 103         b->action[a]->func(&b->action[a]->data);
 104     }
 105 }
 106
 107 /* corner should be the opposite corner of the window in which the pointer
 108    clicked, Corner_TopLeft if a good default if there is no client */
 109 static void fire_motion(MouseAction a, GQuark context, Client *c, guint state,
 110                         guint button, int cx, int cy, int cw, int ch,
 111                         int dx, int dy, gboolean final, Corner corner)
 112 {
 113     GSList *it;
 114     MouseBinding *b;
 115
 116     for (it = g_datalist_id_get_data(&bound_contexts, context);
 117          it != NULL; it = it->next) {
 118         b = it->data;
 119         if (b->state == state && b->button == button)
 120                 break;
 121     }
 122     /* if not bound, then nothing to do! */
 123     if (it == NULL) return;
 124
 125     if (b->action[a] != NULL && b->action[a]->func != NULL) {
 126         b->action[a]->data.any.c = c;
 127
 128         if (b->action[a]->func == action_move) {
 129             b->action[a]->data.move.x = cx + dx;
 130             b->action[a]->data.move.y = cy + dy;
 131             b->action[a]->data.move.final = final;
 132         } else if (b->action[a]->func == action_resize) {
 133             b->action[a]->data.resize.corner = corner;
 134             switch (corner) {
 135             case Corner_TopLeft:
 136                 b->action[a]->data.resize.x = cw + dx;
 137                 b->action[a]->data.resize.y = ch + dy;
 138                 break;
 139             case Corner_TopRight:
 140                 b->action[a]->data.resize.x = cw - dx;
 141                 b->action[a]->data.resize.y = ch + dy;
 142                 break;
 143             case Corner_BottomLeft:
 144                 b->action[a]->data.resize.x = cw + dx;
 145                 b->action[a]->data.resize.y = ch - dy;
 146                 break;
 147             case Corner_BottomRight:
 148                 b->action[a]->data.resize.x = cw - dx;
 149                 b->action[a]->data.resize.y = ch - dy;
 150                 break;
 151             }
 152             b->action[a]->data.resize.final = final;
 153         }
 154         b->action[a]->func(&b->action[a]->data);
 155     }
 156 }
 157
 158 static Corner pick_corner(int x, int y, int cx, int cy, int cw, int ch)
 159 {
 160     if (x - cx < cw / 2) {
 161         if (y - cy < ch / 2)
 162             return Corner_BottomRight;
 163         else
 164             return Corner_TopRight;
 165     } else {
 166         if (y - cy < ch / 2)
 167             return Corner_BottomLeft;
 168         else
 169             return Corner_TopLeft;
 170     }
 171 }
 172
 173 static void event(ObEvent *e, void *foo)
 174 {
 175     static Time ltime;
 176     static int px, py, cx, cy, cw, ch, dx, dy;
 177     static guint button = 0, lbutton = 0;
 178     static gboolean drag = FALSE;
 179     static Corner corner = Corner_TopLeft;
 180     gboolean click = FALSE;
 181     gboolean dclick = FALSE;
 182     GQuark context;
 183
 184     switch (e->type) {
 185     case Event_Client_Mapped:
 186         grab_for_client(e->data.c.client, TRUE);
 187         break;
 188
 189     case Event_Client_Destroy:
 190         grab_for_client(e->data.c.client, FALSE);
 191         break;
 192
 193     case Event_X_ButtonPress:
 194         if (!button) {
 195             if (e->data.x.client != NULL) {
 196                 cx = e->data.x.client->frame->area.x;
 197                 cy = e->data.x.client->frame->area.y;
 198                 cw = e->data.x.client->frame->area.width;
 199                 ch = e->data.x.client->frame->area.height;
 200                 px = e->data.x.e->xbutton.x_root;
 201                 py = e->data.x.e->xbutton.y_root;
 202                 corner = pick_corner(px, py, cx, cy, cw, ch);
 203             }
 204             button = e->data.x.e->xbutton.button;
 205         }
 206         context = engine_get_context(e->data.x.client,
 207                                      e->data.x.e->xbutton.window);
 208
 209         fire_button(MouseAction_Press, context,
 210                     e->data.x.client, e->data.x.e->xbutton.state,
 211                     e->data.x.e->xbutton.button);
 212
 213         if (context == g_quark_try_string("client")) {
 214             /* Replay the event, so it goes to the client*/
 215             XAllowEvents(ob_display, ReplayPointer, CurrentTime);
 216             /* Fall through to the release case! */
 217         } else
 218             break;
 219
 220     case Event_X_ButtonRelease:
 221         context = engine_get_context(e->data.x.client,
 222                                      e->data.x.e->xbutton.window);
 223         if (e->data.x.e->xbutton.button == button) {
 224             /* end drags */
 225             if (drag) {
 226                 fire_motion(MouseAction_Motion, context,
 227                             e->data.x.client, e->data.x.e->xbutton.state,
 228                             e->data.x.e->xbutton.button,
 229                             cx, cy, cw, ch, dx, dy, TRUE, corner);
 230                 drag = FALSE;
 231
 232                 lbutton = 0;
 233             } else {
 234                 /* clicks are only valid if its released over the window */
 235                 if (e->data.x.e->xbutton.x >= 0 &&
 236                     e->data.x.e->xbutton.y >= 0) {
 237                     int junk;
 238                     Window wjunk;
 239                     guint ujunk, w, h;
 240                     XGetGeometry(ob_display, e->data.x.e->xbutton.window,
 241                                  &wjunk, &junk, &junk, &w, &h, &ujunk, &ujunk);
 242                     if (e->data.x.e->xbutton.x < (signed)w &&
 243                         e->data.x.e->xbutton.y < (signed)h) {
 244                         click =TRUE;
 245                         /* double clicks happen if there were 2 in a row! */
 246                         if (lbutton == button &&
 247                             e->data.x.e->xbutton.time - 300 <= ltime)
 248                             dclick = TRUE;
 249                     }
 250                     lbutton = button;
 251                 } else
 252                     lbutton = 0;
 253             }
 254
 255             button = 0;
 256             ltime = e->data.x.e->xbutton.time;
 257         }
 258         fire_button(MouseAction_Press, context,
 259                     e->data.x.client, e->data.x.e->xbutton.state,
 260                     e->data.x.e->xbutton.button);
 261         if (click)
 262             fire_button(MouseAction_Click, context,
 263                         e->data.x.client, e->data.x.e->xbutton.state,
 264                         e->data.x.e->xbutton.button);
 265         if (dclick)
 266             fire_button(MouseAction_DClick, context,
 267                         e->data.x.client, e->data.x.e->xbutton.state,
 268                         e->data.x.e->xbutton.button);
 269         break;
 270
 271     case Event_X_MotionNotify:
 272         if (button) {
 273             drag = TRUE;
 274             dx = e->data.x.e->xmotion.x_root - px;
 275             dy = e->data.x.e->xmotion.y_root - py;
 276             context = engine_get_context(e->data.x.client,
 277                                          e->data.x.e->xbutton.window);
 278             fire_motion(MouseAction_Motion, context,
 279                         e->data.x.client, e->data.x.e->xmotion.state,
 280                         button, cx, cy, cw, ch, dx, dy, FALSE, corner);
 281         }
 282         break;
 283
 284     default:
 285         g_assert_not_reached();
 286     }
 287 }
 288
 289 static gboolean mbind(char *buttonstr, char *contextstr, MouseAction mact,
 290                       Action *action)
 291 {
 292     guint state, button;
 293     GQuark context;
 294     MouseBinding *b;
 295     GSList *it;
 296     guint i;
 297
 298     if (!translate_button(buttonstr, &state, &button)) {
 299         g_warning("invalid button");
 300         return FALSE;
 301     }
 302
 303     context = g_quark_try_string(contextstr);
 304     if (!context) {
 305         g_warning("invalid context");
 306         return FALSE;
 307     }
 308
 309     for (it = g_datalist_id_get_data(&bound_contexts, context);
 310          it != NULL; it = it->next){
 311         b = it->data;
 312         if (b->state == state && b->button == button) {
 313             /* already bound */
 314             if (b->action[mact] != NULL) {
 315                 g_warning("duplicate binding");
 316                 return FALSE;
 317             }
 318             b->action[mact] = action;
 319             return TRUE;
 320         }
 321     }
 322
 323     grab_all_clients(FALSE);
 324
 325     /* add the binding */
 326     b = g_new(MouseBinding, 1);
 327     b->state = state;
 328     b->button = button;
 329     for (i = 0; i < NUM_MOUSEACTION; ++i)
 330         b->action[i] = NULL;
 331     b->action[mact] = action;
 332     g_datalist_id_set_data(&bound_contexts, context,
 333         g_slist_append(g_datalist_id_get_data(&bound_contexts, context), b));
 334
 335     grab_all_clients(TRUE);
 336
 337     return TRUE;
 338 }
 339
 340 static void binddef()
 341 {
 342     Action *a;
 343
 344     /* When creating an Action struct, all of the data elements in the
 345        appropriate struct need to be set, except the Client*, which will be set
 346        at call-time when then action function is used.
 347
 348        For action_move and action_resize, the 'x', 'y', and 'final' data
 349        elements should not be set, as they are set at call-time.
 350     */
 351
 352     a = action_new(action_move);
 353     mbind("1", "titlebar", MouseAction_Motion, a);
 354     a = action_new(action_move);
 355     mbind("1", "handle", MouseAction_Motion, a);
 356     a = action_new(action_move);
 357     mbind("A-1", "frame", MouseAction_Motion, a);
 358
 359     a = action_new(action_resize);
 360     mbind("1", "blcorner", MouseAction_Motion, a);
 361     a = action_new(action_resize);
 362     mbind("1", "brcorner", MouseAction_Motion, a);
 363     a = action_new(action_resize);
 364     mbind("A-3", "frame", MouseAction_Motion, a);
 365
 366     a = action_new(action_focusraise);
 367     mbind("1", "titlebar", MouseAction_Press, a);
 368     a = action_new(action_focusraise);
 369     mbind("1", "handle", MouseAction_Press, a);
 370     a = action_new(action_lower);
 371     mbind("2", "titlebar", MouseAction_Press, a);
 372     a = action_new(action_lower);
 373     mbind("2", "handle", MouseAction_Press, a);
 374     a = action_new(action_raise);
 375     mbind("A-1", "frame", MouseAction_Click, a);
 376     a = action_new(action_lower);
 377     mbind("A-3", "frame", MouseAction_Click, a);
 378
 379     a = action_new(action_focusraise);
 380     mbind("1", "client", MouseAction_Press, a);
 381
 382     a = action_new(action_toggle_shade);
 383     mbind("1", "titlebar", MouseAction_DClick, a);
 384     a = action_new(action_shade);
 385     mbind("4", "titlebar", MouseAction_Press, a);
 386     a = action_new(action_unshade);
 387     mbind("5", "titlebar", MouseAction_Click, a);
 388
 389     a = action_new(action_toggle_maximize_full);
 390     mbind("1", "maximize", MouseAction_Click, a);
 391     a = action_new(action_toggle_maximize_vert);
 392     mbind("2", "maximize", MouseAction_Click, a);
 393     a = action_new(action_toggle_maximize_horz);
 394     mbind("3", "maximize", MouseAction_Click, a);
 395     a = action_new(action_iconify);
 396     mbind("1", "iconify", MouseAction_Click, a);
 397     a = action_new(action_close);
 398     mbind("1", "icon", MouseAction_DClick, a);
 399     a = action_new(action_close);
 400     mbind("1", "close", MouseAction_Click, a);
 401     a = action_new(action_toggle_omnipresent);
 402     mbind("1", "alldesktops", MouseAction_Click, a);
 403
 404     a = action_new(action_next_desktop);
 405     a->data.nextprevdesktop.wrap = TRUE;
 406     mbind("4", "root", MouseAction_Click, a);
 407     a = action_new(action_previous_desktop);
 408     a->data.nextprevdesktop.wrap = TRUE;
 409     mbind("5", "root", MouseAction_Click, a);
 410     a = action_new(action_next_desktop);
 411     a->data.nextprevdesktop.wrap = TRUE;
 412     mbind("A-4", "root", MouseAction_Click, a);
 413     a = action_new(action_previous_desktop);
 414     a->data.nextprevdesktop.wrap = TRUE;
 415     mbind("A-5", "root", MouseAction_Click, a);
 416     a = action_new(action_next_desktop);
 417     a->data.nextprevdesktop.wrap = TRUE;
 418     mbind("A-4", "frame", MouseAction_Click, a);
 419     a = action_new(action_previous_desktop);
 420     a->data.nextprevdesktop.wrap = TRUE;
 421     mbind("A-5", "frame", MouseAction_Click, a);
 422 }
 423
 424 void plugin_startup()
 425 {
 426     dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
 427                       Event_X_ButtonPress | Event_X_ButtonRelease |
 428                       Event_X_MotionNotify, (EventHandler)event, NULL);
 429
 430     /* XXX parse a config */
 431     binddef();
 432 }
 433
 434 void plugin_shutdown()
 435 {
 436     dispatch_register(0, (EventHandler)event, NULL);
 437
 438     grab_all_clients(FALSE);
 439     g_datalist_foreach(&bound_contexts, foreach_clear, NULL);
 440 }