Dogcows Code - chaz/openbox/blob - 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 void plugin_setup_config()
  13 {
  14 }
  15
  16 static int drag_threshold = 3;
  17
  18 /* GData of GSList*s of PointerBinding*s. */
  19 static GData *bound_contexts;
  20
  21 struct foreach_grab_temp {
  22     Client *client;
  23     gboolean grab;
  24 };
  25
  26 static void foreach_grab(GQuark key, gpointer data, gpointer user_data)
  27 {
  28     struct foreach_grab_temp *d = user_data;
  29     GSList *it;
  30     for (it = data; it != NULL; it = it->next) {
  31         /* grab/ungrab the button */
  32         MouseBinding *b = it->data;
  33         Window win;
  34         int mode;
  35         unsigned int mask;
  36
  37         if (key == g_quark_try_string("frame")) {
  38             win = d->client->frame->window;
  39             mode = GrabModeAsync;
  40             mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask;
  41         } else if (key == g_quark_try_string("client")) {
  42             win = d->client->frame->plate;
  43             mode = GrabModeSync; /* this is handled in event */
  44             mask = ButtonPressMask; /* can't catch more than this with Sync
  45                                        mode the release event is manufactured
  46                                        in event */
  47         } else return;
  48
  49         if (d->grab)
  50             grab_button(b->button, b->state, win, mask, mode);
  51         else
  52             ungrab_button(b->button, b->state, win);
  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     GQuark context;
 189
 190     switch (e->type) {
 191     case Event_Client_Mapped:
 192         grab_for_client(e->data.c.client, TRUE);
 193         break;
 194
 195     case Event_Client_Destroy:
 196         grab_for_client(e->data.c.client, FALSE);
 197         break;
 198
 199     case Event_X_ButtonPress:
 200         if (!button) {
 201             if (e->data.x.client != NULL) {
 202                 cx = e->data.x.client->frame->area.x;
 203                 cy = e->data.x.client->frame->area.y;
 204                 cw = e->data.x.client->frame->area.width;
 205                 ch = e->data.x.client->frame->area.height;
 206                 px = e->data.x.e->xbutton.x_root;
 207                 py = e->data.x.e->xbutton.y_root;
 208                 corner = pick_corner(px, py, cx, cy, cw, ch);
 209             }
 210             button = e->data.x.e->xbutton.button;
 211         }
 212         context = engine_get_context(e->data.x.client,
 213                                      e->data.x.e->xbutton.window);
 214
 215         fire_button(MouseAction_Press, context,
 216                     e->data.x.client, e->data.x.e->xbutton.state,
 217                     e->data.x.e->xbutton.button);
 218
 219         if (context == g_quark_try_string("client")) {
 220             /* Replay the event, so it goes to the client*/
 221             XAllowEvents(ob_display, ReplayPointer, CurrentTime);
 222             /* Fall through to the release case! */
 223         } else
 224             break;
 225
 226     case Event_X_ButtonRelease:
 227         context = engine_get_context(e->data.x.client,
 228                                      e->data.x.e->xbutton.window);
 229         if (e->data.x.e->xbutton.button == button) {
 230             /* end drags */
 231             if (drag) {
 232                 fire_motion(MouseAction_Motion, context,
 233                             e->data.x.client, e->data.x.e->xbutton.state,
 234                             e->data.x.e->xbutton.button,
 235                             cx, cy, cw, ch, dx, dy, TRUE, corner);
 236                 drag = FALSE;
 237
 238                 lbutton = 0;
 239             } else {
 240                 /* clicks are only valid if its released over the window */
 241                 if (e->data.x.e->xbutton.x >= 0 &&
 242                     e->data.x.e->xbutton.y >= 0) {
 243                     int junk;
 244                     Window wjunk;
 245                     guint ujunk, w, h;
 246                     XGetGeometry(ob_display, e->data.x.e->xbutton.window,
 247                                  &wjunk, &junk, &junk, &w, &h, &ujunk, &ujunk);
 248                     if (e->data.x.e->xbutton.x < (signed)w &&
 249                         e->data.x.e->xbutton.y < (signed)h) {
 250                         click =TRUE;
 251                         /* double clicks happen if there were 2 in a row! */
 252                         if (lbutton == button &&
 253                             e->data.x.e->xbutton.time - 300 <= ltime)
 254                             dclick = TRUE;
 255                     }
 256                     lbutton = button;
 257                 } else
 258                     lbutton = 0;
 259             }
 260
 261             button = 0;
 262             ltime = e->data.x.e->xbutton.time;
 263         }
 264         fire_button(MouseAction_Press, context,
 265                     e->data.x.client, e->data.x.e->xbutton.state,
 266                     e->data.x.e->xbutton.button);
 267         if (click)
 268             fire_button(MouseAction_Click, context,
 269                         e->data.x.client, e->data.x.e->xbutton.state,
 270                         e->data.x.e->xbutton.button);
 271         if (dclick)
 272             fire_button(MouseAction_DClick, context,
 273                         e->data.x.client, e->data.x.e->xbutton.state,
 274                         e->data.x.e->xbutton.button);
 275         break;
 276
 277     case Event_X_MotionNotify:
 278         if (button) {
 279             dx = e->data.x.e->xmotion.x_root - px;
 280             dy = e->data.x.e->xmotion.y_root - py;
 281             if (ABS(dx) >= drag_threshold || ABS(dy) >= drag_threshold)
 282                 drag = TRUE;
 283             if (drag) {
 284                 context = engine_get_context(e->data.x.client,
 285                                              e->data.x.e->xbutton.window);
 286                 fire_motion(MouseAction_Motion, context,
 287                             e->data.x.client, e->data.x.e->xmotion.state,
 288                             button, cx, cy, cw, ch, dx, dy, FALSE, corner);
 289             }
 290         }
 291         break;
 292
 293     default:
 294         g_assert_not_reached();
 295     }
 296 }
 297
 298 static gboolean mbind(char *buttonstr, char *contextstr, MouseAction mact,
 299                       Action *action)
 300 {
 301     guint state, button;
 302     GQuark context;
 303     MouseBinding *b;
 304     GSList *it;
 305     guint i;
 306
 307     if (!translate_button(buttonstr, &state, &button)) {
 308         g_warning("invalid button");
 309         return FALSE;
 310     }
 311
 312     contextstr = g_ascii_strdown(contextstr, -1);
 313     context = g_quark_try_string(contextstr);
 314     g_free(contextstr);
 315     if (!context) {
 316         g_warning("invalid context");
 317         return FALSE;
 318     }
 319
 320     for (it = g_datalist_id_get_data(&bound_contexts, context);
 321          it != NULL; it = it->next){
 322         b = it->data;
 323         if (b->state == state && b->button == button) {
 324             /* already bound */
 325             if (b->action[mact] != NULL) {
 326                 g_warning("duplicate binding");
 327                 return FALSE;
 328             }
 329             b->action[mact] = action;
 330             return TRUE;
 331         }
 332     }
 333
 334     grab_all_clients(FALSE);
 335
 336     /* add the binding */
 337     b = g_new(MouseBinding, 1);
 338     b->state = state;
 339     b->button = button;
 340     for (i = 0; i < NUM_MOUSEACTION; ++i)
 341         b->action[i] = NULL;
 342     b->action[mact] = action;
 343     g_datalist_id_set_data(&bound_contexts, context,
 344         g_slist_append(g_datalist_id_get_data(&bound_contexts, context), b));
 345
 346     grab_all_clients(TRUE);
 347
 348     return TRUE;
 349 }
 350
 351 static void binddef()
 352 {
 353     Action *a;
 354
 355     /* When creating an Action struct, all of the data elements in the
 356        appropriate struct need to be set, except the Client*, which will be set
 357        at call-time when then action function is used.
 358
 359        For action_move and action_resize, the 'x', 'y', and 'final' data
 360        elements should not be set, as they are set at call-time.
 361     */
 362
 363     a = action_new(action_move);
 364     mbind("1", "titlebar", MouseAction_Motion, a);
 365     a = action_new(action_move);
 366     mbind("1", "handle", MouseAction_Motion, a);
 367     a = action_new(action_move);
 368     mbind("A-1", "frame", MouseAction_Motion, a);
 369
 370     a = action_new(action_resize);
 371     mbind("1", "blcorner", MouseAction_Motion, a);
 372     a = action_new(action_resize);
 373     mbind("1", "brcorner", MouseAction_Motion, a);
 374     a = action_new(action_resize);
 375     mbind("A-3", "frame", MouseAction_Motion, a);
 376
 377     a = action_new(action_focus);
 378     mbind("1", "titlebar", MouseAction_Press, a);
 379     a = action_new(action_focus);
 380     mbind("1", "handle", MouseAction_Press, a);
 381     a = action_new(action_focusraise);
 382     mbind("1", "titlebar", MouseAction_Click, a);
 383     a = action_new(action_focusraise);
 384     mbind("1", "handle", MouseAction_Click, a);
 385     a = action_new(action_lower);
 386     mbind("2", "titlebar", MouseAction_Press, a);
 387     a = action_new(action_lower);
 388     mbind("2", "handle", MouseAction_Press, a);
 389     a = action_new(action_focusraise);
 390     mbind("A-1", "frame", MouseAction_Click, a);
 391     a = action_new(action_lower);
 392     mbind("A-3", "frame", MouseAction_Click, a);
 393
 394     a = action_new(action_focus);
 395     mbind("1", "client", MouseAction_Press, a);
 396
 397     a = action_new(action_toggle_shade);
 398     mbind("1", "titlebar", MouseAction_DClick, a);
 399     a = action_new(action_shade);
 400     mbind("4", "titlebar", MouseAction_Press, a);
 401     a = action_new(action_unshade);
 402     mbind("5", "titlebar", MouseAction_Press, a);
 403
 404     a = action_new(action_toggle_maximize_full);
 405     mbind("1", "maximize", MouseAction_Click, a);
 406     a = action_new(action_toggle_maximize_vert);
 407     mbind("2", "maximize", MouseAction_Click, a);
 408     a = action_new(action_toggle_maximize_horz);
 409     mbind("3", "maximize", MouseAction_Click, a);
 410     a = action_new(action_iconify);
 411     mbind("1", "iconify", MouseAction_Click, a);
 412     a = action_new(action_close);
 413     mbind("1", "icon", MouseAction_DClick, a);
 414     a = action_new(action_close);
 415     mbind("1", "close", MouseAction_Click, a);
 416     a = action_new(action_kill);
 417     mbind("2", "close", MouseAction_Click, a);
 418     a = action_new(action_toggle_omnipresent);
 419     mbind("1", "alldesktops", MouseAction_Click, a);
 420
 421     a = action_new(action_next_desktop);
 422     a->data.nextprevdesktop.wrap = TRUE;
 423     mbind("4", "root", MouseAction_Click, a);
 424     a = action_new(action_previous_desktop);
 425     a->data.nextprevdesktop.wrap = TRUE;
 426     mbind("5", "root", MouseAction_Click, a);
 427     a = action_new(action_next_desktop);
 428     a->data.nextprevdesktop.wrap = TRUE;
 429     mbind("A-4", "root", MouseAction_Click, a);
 430     a = action_new(action_previous_desktop);
 431     a->data.nextprevdesktop.wrap = TRUE;
 432     mbind("A-5", "root", MouseAction_Click, a);
 433     a = action_new(action_next_desktop);
 434     a->data.nextprevdesktop.wrap = TRUE;
 435     mbind("A-4", "frame", MouseAction_Click, a);
 436     a = action_new(action_previous_desktop);
 437     a->data.nextprevdesktop.wrap = TRUE;
 438     mbind("A-5", "frame", MouseAction_Click, a);
 439 }
 440
 441 void plugin_startup()
 442 {
 443     dispatch_register(Event_Client_Mapped | Event_Client_Destroy |
 444                       Event_X_ButtonPress | Event_X_ButtonRelease |
 445                       Event_X_MotionNotify, (EventHandler)event, NULL);
 446
 447     /* XXX parse a config */
 448     binddef();
 449 }
 450
 451 void plugin_shutdown()
 452 {
 453     dispatch_register(0, (EventHandler)event, NULL);
 454
 455     grab_all_clients(FALSE);
 456     g_datalist_foreach(&bound_contexts, foreach_clear, NULL);
 457 }