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/engine.h"
   7 #include "translate.h"
   8 #include "mouse.h"
   9 #include <glib.h>
  10
  11 /* GData of GSList*s of PointerBinding*s. */
  12 static GData *bound_contexts;
  13
  14 struct foreach_grab_temp {
  15     Client *client;
  16     gboolean grab;
  17 };
  18
  19 static void grab_button(Client *client, guint state, guint button,
  20                         GQuark context, gboolean grab)
  21 {
  22     Window win;
  23     int mode = GrabModeAsync;
  24     unsigned int mask;
  25
  26     if (context == g_quark_try_string("frame")) {
  27         win = client->frame->window;
  28         mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
  29     } else if (context == g_quark_try_string("client")) {
  30         win = client->frame->plate;
  31         mode = GrabModeSync; /* this is handled in pointer_event */
  32         mask = ButtonPressMask; /* can't catch more than this with Sync mode
  33                                    the release event is manufactured in
  34                                    pointer_fire */
  35     } else return;
  36
  37     if (grab)
  38         /* XXX grab all lock keys */
  39         XGrabButton(ob_display, button, state, win, FALSE, mask, mode,
  40                     GrabModeAsync, None, None);
  41     else
  42         /* XXX ungrab all lock keys */
  43         XUngrabButton(ob_display, button, state, win);
  44 }
  45
  46 static void foreach_grab(GQuark key, gpointer data, gpointer user_data)
  47 {
  48     struct foreach_grab_temp *d = user_data;
  49     GSList *it;
  50     for (it = data; it != NULL; it = it->next) {
  51         MouseBinding *b = it->data;
  52         grab_button(d->client, b->state, b->button, key, d->grab);
  53     }
  54 }
  55
  56 static void grab_for_client(Client *client, gboolean grab)
  57 {
  58     struct foreach_grab_temp bt;
  59     bt.client = client;
  60     bt.grab = grab;
  61     g_datalist_foreach(&bound_contexts, foreach_grab, &bt);
  62 }
  63
  64 static void grab_all_clients(gboolean grab)
  65 {
  66     GSList *it;
  67
  68     for (it = client_list; it != NULL; it = it->next)
  69         grab_for_client(it->data, grab);
  70 }
  71
  72 static void foreach_clear(GQuark key, gpointer data, gpointer user_data)
  73 {
  74     GSList *it;
  75     user_data = user_data;
  76     for (it = data; it != NULL; it = it->next) {
  77         int i;
  78
  79         MouseBinding *b = it->data;
  80         for (i = 0; i < NUM_MOUSEACTION; ++i)
  81             if (b->action[i] != NULL)
  82                 action_free(b->action[i]);
  83         g_free(b);
  84     }
  85     g_slist_free(data);
  86 }
  87
  88 static void fire_button(MouseAction a, GQuark context, Client *c, guint state,
  89                         guint button)
  90 {
  91     GSList *it;
  92     MouseBinding *b;
  93
  94     for (it = g_datalist_id_get_data(&bound_contexts, context);
  95          it != NULL; it = it->next) {
  96         b = it->data;
  97         if (b->state == state && b->button == button)
  98             break;
  99     }
 100     /* if not bound, then nothing to do! */
 101     if (it == NULL) return;
 102
 103     if (b->action[a] != NULL && b->action[a]->func != NULL) {
 104         b->action[a]->data.any.c = c;
 105
 106         g_assert(!(b->action[a]->func == action_move ||
 107                    b->action[a]->func == action_resize));
 108
 109         b->action[a]->func(&b->action[a]->data);
 110     }
 111 }
 112
 113 /* corner should be the opposite corner of the window in which the pointer
 114    clicked, Corner_TopLeft if a good default if there is no client */
 115 static void fire_motion(MouseAction a, GQuark context, Client *c, guint state,
 116                         guint button, int cx, int cy, int cw, int ch,
 117                         int dx, int dy, gboolean final, Corner corner)
 118 {
 119     GSList *it;
 120     MouseBinding *b;
 121
 122     for (it = g_datalist_id_get_data(&bound_contexts, context);
 123          it != NULL; it = it->next) {
 124         b = it->data;
 125         if (b->state == state && b->button == button)
 126                 break;
 127     }
 128     /* if not bound, then nothing to do! */
 129     if (it == NULL) return;
 130
 131     if (b->action[a] != NULL && b->action[a]->func != NULL) {
 132         b->action[a]->data.any.c = c;
 133
 134         if (b->action[a]->func == action_move) {
 135             b->action[a]->data.move.x = cx + dx;
 136             b->action[a]->data.move.y = cy + dy;
 137             b->action[a]->data.move.final = final;
 138         } else if (b->action[a]->func == action_resize) {
 139             b->action[a]->data.resize.corner = corner;
 140             switch (corner) {
 141             case Corner_TopLeft:
 142                 b->action[a]->data.resize.x = cw + dx;
 143                 b->action[a]->data.resize.y = ch + dy;
 144                 break;
 145             case Corner_TopRight:
 146                 b->action[a]->data.resize.x = cw - dx;
 147                 b->action[a]->data.resize.y = ch + dy;
 148                 break;
 149             case Corner_BottomLeft:
 150                 b->action[a]->data.resize.x = cw + dx;
 151                 b->action[a]->data.resize.y = ch - dy;
 152                 break;
 153             case Corner_BottomRight:
 154                 b->action[a]->data.resize.x = cw - dx;
 155                 b->action[a]->data.resize.y = ch - dy;
 156                 break;
 157             }
 158             b->action[a]->data.resize.final = final;
 159         }
 160         b->action[a]->func(&b->action[a]->data);
 161     }
 162 }
 163
 164 static Corner pick_corner(int x, int y, int cx, int cy, int cw, int ch)
 165 {
 166     if (x - cx < cw / 2) {
 167         if (y - cy < ch / 2)
 168             return Corner_BottomRight;
 169         else
 170             return Corner_TopRight;
 171     } else {
 172         if (y - cy < ch / 2)
 173             return Corner_BottomLeft;
 174         else
 175             return Corner_TopLeft;
 176     }
 177 }
 178
 179 static void event(ObEvent *e, void *foo)
 180 {
 181     static Time ltime;
 182     static int px, py, cx, cy, cw, ch, dx, dy;
 183     static guint button = 0, lbutton = 0;
 184     static gboolean drag = FALSE;
 185     static Corner corner = Corner_TopLeft;
 186     gboolean click = FALSE;
 187     gboolean dclick = FALSE;
 188
 189     switch (e->type) {
 190     case Event_Client_Mapped:
 191         grab_for_client(e->data.c.client, TRUE);
 192         break;
 193
 194     case Event_Client_Destroy:
 195         grab_for_client(e->data.c.client, FALSE);
 196         break;
 197
 198     case Event_X_ButtonPress:
 199         if (!button) {
 200             if (e->data.x.client != NULL) {
 201                 cx = e->data.x.client->frame->area.x;
 202                 cy = e->data.x.client->frame->area.y;
 203                 cw = e->data.x.client->frame->area.width;
 204                 ch = e->data.x.client->frame->area.height;
 205                 px = e->data.x.e->xbutton.x_root;
 206                 py = e->data.x.e->xbutton.y_root;
 207                 corner = pick_corner(px, py, cx, cy, cw, ch);
 208             }
 209             button = e->data.x.e->xbutton.button;
 210         }
 211         fire_button(MouseAction_Press,
 212                     engine_get_context(e->data.x.client,
 213                                        e->data.x.e->xbutton.window),
 214                     e->data.x.client, e->data.x.e->xbutton.state,
 215                     e->data.x.e->xbutton.button);
 216
 217         /* XXX dont look up the context so many times */
 218         if (engine_get_context(e->data.x.client,
 219                                e->data.x.e->xbutton.window) ==
 220             g_quark_try_string("client")) {
 221             /* Replay the event, so it goes to the client*/
 222             XAllowEvents(ob_display, ReplayPointer, CurrentTime);
 223             /* Fall through to the release case! */
 224         } else
 225             break;
 226
 227     case Event_X_ButtonRelease:
 228         if (e->data.x.e->xbutton.button == button) {
 229             /* end drags */
 230             if (drag) {
 231                 fire_motion(MouseAction_Motion,
 232                             engine_get_context(e->data.x.client,
 233                                                e->data.x.e->xbutton.window),
 234                             e->data.x.client, e->data.x.e->xbutton.state,
 235                             e->data.x.e->xbutton.button,
 236                             cx, cy, cw, ch, dx, dy, TRUE, corner);
 237                 drag = FALSE;
 238
 239                 lbutton = 0;
 240             } else {
 241                 /* clicks are only valid if its released over the window */
 242                 if (e->data.x.e->xbutton.x >= 0 &&
 243                     e->data.x.e->xbutton.y >= 0) {
 244                     int junk;
 245                     Window wjunk;
 246                     guint ujunk, w, h;
 247                     XGetGeometry(ob_display, e->data.x.e->xbutton.window,
 248                                  &wjunk, &junk, &junk, &w, &h, &ujunk, &ujunk);
 249                     if (e->data.x.e->xbutton.x < (signed)w &&
 250                         e->data.x.e->xbutton.y < (signed)h) {
 251                         click =TRUE;
 252                         /* double clicks happen if there were 2 in a row! */
 253                         if (lbutton == button &&
 254                             e->data.x.e->xbutton.time - 300 <= ltime)
 255                             dclick = TRUE;
 256                     }
 257                     lbutton = button;
 258                 } else
 259                     lbutton = 0;
 260             }
 261
 262             button = 0;
 263             ltime = e->data.x.e->xbutton.time;
 264         }
 265         fire_button(MouseAction_Press,
 266                     engine_get_context(e->data.x.client,
 267                                        e->data.x.e->xbutton.window),
 268                     e->data.x.client, e->data.x.e->xbutton.state,
 269                     e->data.x.e->xbutton.button);
 270         if (click)
 271             fire_button(MouseAction_Click,
 272                         engine_get_context(e->data.x.client,
 273                                            e->data.x.e->xbutton.window),
 274                         e->data.x.client, e->data.x.e->xbutton.state,
 275                         e->data.x.e->xbutton.button);
 276         if (dclick)
 277             fire_button(MouseAction_DClick,
 278                         engine_get_context(e->data.x.client,
 279                                            e->data.x.e->xbutton.window),
 280                         e->data.x.client, e->data.x.e->xbutton.state,
 281                         e->data.x.e->xbutton.button);
 282         break;
 283
 284     case Event_X_MotionNotify:
 285         if (button) {
 286             drag = TRUE;
 287             dx = e->data.x.e->xmotion.x_root - px;
 288             dy = e->data.x.e->xmotion.y_root - py;
 289             fire_motion(MouseAction_Motion,
 290                         engine_get_context(e->data.x.client,
 291                                            e->data.x.e->xbutton.window),
 292                         e->data.x.client, e->data.x.e->xmotion.state,
 293                         button, cx, cy, cw, ch, dx, dy, FALSE, corner);
 294         }
 295         break;
 296
 297     default:
 298         g_assert_not_reached();
 299     }
 300 }
 301
 302 static gboolean mbind(char *buttonstr, char *contextstr, MouseAction mact,
 303                       Action *action)
 304 {
 305     guint state, button;
 306     GQuark context;
 307     MouseBinding *b;
 308     GSList *it;
 309     guint i;
 310
 311     if (!translate_button(buttonstr, &state, &button)) {
 312         g_warning("invalid button");
 313         return FALSE;
 314     }
 315
 316     context = g_quark_try_string(contextstr);
 317     if (!context) {
 318         g_warning("invalid context");
 319         return FALSE;
 320     }
 321
 322     for (it = g_datalist_id_get_data(&bound_contexts, context);
 323          it != NULL; it = it->next){
 324         b = it->data;
 325         if (b->state == state && b->button == button) {
 326             /* already bound */
 327             if (b->action[mact] != NULL) {
 328                 g_warning("duplicate binding");
 329                 return FALSE;
 330             }
 331             b->action[mact] = action;
 332             return TRUE;
 333         }
 334     }
 335
 336     grab_all_clients(FALSE);
 337
 338     /* add the binding */
 339     b = g_new(MouseBinding, 1);
 340     b->state = state;
 341     b->button = button;
 342     for (i = 0; i < NUM_MOUSEACTION; ++i)
 343         b->action[i] = NULL;
 344     b->action[mact] = action;
 345     g_datalist_id_set_data(&bound_contexts, context,
 346         g_slist_append(g_datalist_id_get_data(&bound_contexts, context), b));
 347
 348     grab_all_clients(TRUE);
 349
 350     return TRUE;
 351 }
 352
 353 static void binddef()
 354 {
 355     Action *a;
 356
 357     /* When creating an Action struct, all of the data elements in the
 358        appropriate struct need to be set, except the Client*, which will be set
 359        at call-time when then action function is used.
 360
 361        For action_move and action_resize, the 'x', 'y', and 'final' data
 362        elements should not be set, as they are set at call-time.
 363     */
 364
 365     a = action_new(action_move);
 366     mbind("1", "titlebar", MouseAction_Motion, a);
 367     a = action_new(action_move);
 368     mbind("1", "handle", MouseAction_Motion, a);
 369     a = action_new(action_move);
 370     mbind("A-1", "frame", MouseAction_Motion, a);
 371
 372     a = action_new(action_resize);
 373     mbind("1", "blcorner", MouseAction_Motion, a);
 374     a = action_new(action_resize);
 375     mbind("1", "brcorner", MouseAction_Motion, a);
 376     a = action_new(action_resize);
 377     mbind("A-3", "frame", MouseAction_Motion, a);
 378
 379     a = action_new(action_focusraise);
 380     mbind("1", "titlebar", MouseAction_Press, a);
 381     a = action_new(action_focusraise);
 382     mbind("1", "handle", MouseAction_Press, a);
 383     a = action_new(action_lower);
 384     mbind("2", "titlebar", MouseAction_Press, a);
 385     a = action_new(action_lower);
 386     mbind("2", "handle", MouseAction_Press, a);
 387     a = action_new(action_raise);
 388     mbind("A-1", "frame", MouseAction_Click, a);
 389     a = action_new(action_lower);
 390     mbind("A-3", "frame", MouseAction_Click, a);
 391
 392     a = action_new(action_focusraise);
 393     mbind("1", "client", MouseAction_Press, a);
 394
 395     a = action_new(action_toggle_shade);
 396     mbind("1", "titlebar", MouseAction_DClick, a);
 397     a = action_new(action_shade);
 398     mbind("4", "titlebar", MouseAction_Press, a);
 399     a = action_new(action_unshade);
 400     mbind("5", "titlebar", MouseAction_Click, a);
 401
 402     a = action_new(action_toggle_maximize_full);
 403     mbind("1", "maximize", MouseAction_Click, a);
 404     a = action_new(action_toggle_maximize_vert);
 405     mbind("2", "maximize", MouseAction_Click, a);
 406     a = action_new(action_toggle_maximize_horz);
 407     mbind("3", "maximize", MouseAction_Click, a);
 408     a = action_new(action_iconify);
 409     mbind("1", "iconify", MouseAction_Click, a);
 410     a = action_new(action_close);
 411     mbind("1", "icon", MouseAction_DClick, a);
 412     a = action_new(action_close);
 413     mbind("1", "close", MouseAction_Click, a);
 414     a = action_new(action_toggle_omnipresent);
 415     mbind("1", "alldesktops", MouseAction_Click, a);
 416
 417     a = action_new(action_next_desktop);
 418     a->data.nextprevdesktop.wrap = TRUE;
 419     mbind("4", "root", MouseAction_Click, a);
 420     a = action_new(action_previous_desktop);
 421     a->data.nextprevdesktop.wrap = TRUE;
 422     mbind("5", "root", MouseAction_Click, a);
 423     a = action_new(action_next_desktop);
 424     a->data.nextprevdesktop.wrap = TRUE;
 425     mbind("A-4", "root", MouseAction_Click, a);
 426     a = action_new(action_previous_desktop);
 427     a->data.nextprevdesktop.wrap = TRUE;
 428     mbind("A-5", "root", MouseAction_Click, a);
 429     a = action_new(action_next_desktop);
 430     a->data.nextprevdesktop.wrap = TRUE;
 431     mbind("A-4", "frame", MouseAction_Click, a);
 432     a = action_new(action_previous_desktop);
 433     a->data.nextprevdesktop.wrap = TRUE;
 434     mbind("A-5", "frame", MouseAction_Click, a);
 435 }
 436
 437 void plugin_startup()
 438 {
 439     dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
 440                       Event_X_ButtonPress | Event_X_ButtonRelease |
 441                       Event_X_MotionNotify, (EventHandler)event, NULL);
 442
 443     /* XXX parse a config */
 444     binddef();
 445 }
 446
 447 void plugin_shutdown()
 448 {
 449     dispatch_register(0, (EventHandler)event, NULL);
 450
 451     grab_all_clients(FALSE);
 452     g_datalist_foreach(&bound_contexts, foreach_clear, NULL);
 453 }