event.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5 #include "dwm.h"
   6
   7 #include <stdlib.h>
   8 #include <X11/keysym.h>
   9 #include <X11/Xatom.h>
  10
  11 /* CUSTOMIZE */
  12
  13 typedef struct {
  14         unsigned long mod;
  15         KeySym keysym;
  16         void (*func)(Arg *arg);
  17         Arg arg;
  18 } Key;
  19
  20 const char *browse[] = { "firefox", NULL };
  21 const char *gimp[] = { "gimp", NULL };
  22 const char *term[] = { /*"xterm", NULL };*/
  23         "urxvt", "-tr", "+sb", "-bg", "black", "-fg", "white", "-cr", "white",
  24         "-fn", "-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*", NULL
  25 };
  26 const char *xlock[] = { "xlock", NULL };
  27
  28 static Key key[] = {
  29         /* modifier             key             function        arguments */
  30         { MODKEY,               XK_0,           view,           { .i = Tfnord } },
  31         { MODKEY,               XK_1,           view,           { .i = Tdev } },
  32         { MODKEY,               XK_2,           view,           { .i = Tnet } },
  33         { MODKEY,               XK_3,           view,           { .i = Twork } },
  34         { MODKEY,               XK_4,           view,           { .i = Tmisc} },
  35         { MODKEY,               XK_h,           viewprev,       { 0 } },
  36         { MODKEY,               XK_j,           focusnext,      { 0 } },
  37         { MODKEY,               XK_k,           focusprev,      { 0 } },
  38         { MODKEY,               XK_l,           viewnext,       { 0 } },
  39         { MODKEY,               XK_m,           togglemax,      { 0 } },
  40         { MODKEY,               XK_space,       togglemode,     { 0 } },
  41         { MODKEY,               XK_Return,      zoom,           { 0 } },
  42         { MODKEY|ControlMask,   XK_0,           appendtag,      { .i = Tfnord } },
  43         { MODKEY|ControlMask,   XK_1,           appendtag,      { .i = Tdev } },
  44         { MODKEY|ControlMask,   XK_2,           appendtag,      { .i = Tnet } },
  45         { MODKEY|ControlMask,   XK_3,           appendtag,      { .i = Twork } },
  46         { MODKEY|ControlMask,   XK_4,           appendtag,      { .i = Tmisc } },
  47         { MODKEY|ShiftMask,     XK_0,           replacetag,     { .i = Tfnord } },
  48         { MODKEY|ShiftMask,     XK_1,           replacetag,     { .i = Tdev } },
  49         { MODKEY|ShiftMask,     XK_2,           replacetag,     { .i = Tnet } },
  50         { MODKEY|ShiftMask,     XK_3,           replacetag,     { .i = Twork } },
  51         { MODKEY|ShiftMask,     XK_4,           replacetag,     { .i = Tmisc } },
  52         { MODKEY|ShiftMask,     XK_c,           killclient,     { 0 } },
  53         { MODKEY|ShiftMask,     XK_q,           quit,           { 0 } },
  54         { MODKEY|ShiftMask,     XK_Return,      spawn,          { .argv = term } },
  55         { MODKEY|ShiftMask,     XK_g,           spawn,          { .argv = gimp } },
  56         { MODKEY|ShiftMask,     XK_l,           spawn,          { .argv = xlock } },
  57         { MODKEY|ShiftMask,     XK_w,           spawn,          { .argv = browse } },
  58 };
  59
  60 #define NumLockMask Mod2Mask
  61 unsigned int valid_mask =  255 &  ~( NumLockMask | LockMask);
  62
  63 /* END CUSTOMIZE */
  64
  65 /* static */
  66
  67 static void
  68 movemouse(Client *c)
  69 {
  70         int x1, y1, ocx, ocy, di;
  71         unsigned int dui;
  72         Window dummy;
  73         XEvent ev;
  74
  75         ocx = c->x;
  76         ocy = c->y;
  77         if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
  78                         None, cursor[CurMove], CurrentTime) != GrabSuccess)
  79                 return;
  80         XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
  81         for(;;) {
  82                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
  83                 switch (ev.type) {
  84                 default: break;
  85                 case Expose:
  86                         handler[Expose](&ev);
  87                         break;
  88                 case MotionNotify:
  89                         XSync(dpy, False);
  90                         c->x = ocx + (ev.xmotion.x - x1);
  91                         c->y = ocy + (ev.xmotion.y - y1);
  92                         resize(c, False, TopLeft);
  93                         break;
  94                 case ButtonRelease:
  95                         XUngrabPointer(dpy, CurrentTime);
  96                         return;
  97                 }
  98         }
  99 }
 100
 101 static void
 102 resizemouse(Client *c)
 103 {
 104         int ocx, ocy;
 105         Corner sticky;
 106         XEvent ev;
 107
 108         ocx = c->x;
 109         ocy = c->y;
 110         if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
 111                                 None, cursor[CurResize], CurrentTime) != GrabSuccess)
 112                 return;
 113         XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
 114         for(;;) {
 115                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
 116                 switch(ev.type) {
 117                 default: break;
 118                 case Expose:
 119                         handler[Expose](&ev);
 120                         break;
 121                 case MotionNotify:
 122                         XSync(dpy, False);
 123                         c->w = abs(ocx - ev.xmotion.x);
 124                         c->h = abs(ocy - ev.xmotion.y);
 125                         c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
 126                         c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
 127                         if(ocx <= ev.xmotion.x)
 128                                 sticky = (ocy <= ev.xmotion.y) ? TopLeft : BotLeft;
 129                         else
 130                                 sticky = (ocy <= ev.xmotion.y) ? TopRight : BotRight;
 131                         resize(c, True, sticky);
 132                         break;
 133                 case ButtonRelease:
 134                         XUngrabPointer(dpy, CurrentTime);
 135                         return;
 136                 }
 137         }
 138 }
 139
 140 static void
 141 buttonpress(XEvent *e)
 142 {
 143         int x;
 144         Arg a;
 145         Client *c;
 146         XButtonPressedEvent *ev = &e->xbutton;
 147
 148         if(barwin == ev->window) {
 149                 switch(ev->button) {
 150                 default:
 151                         x = 0;
 152                         for(a.i = 0; a.i < TLast; a.i++) {
 153                                 x += textw(tags[a.i]);
 154                                 if(ev->x < x) {
 155                                         view(&a);
 156                                         break;
 157                                 }
 158                         }
 159                         break;
 160                 case Button4:
 161                         a.i = (tsel + 1 < TLast) ? tsel + 1 : 0;
 162                         view(&a);
 163                         break;
 164                 case Button5:
 165                         a.i = (tsel - 1 >= 0) ? tsel - 1 : TLast - 1;
 166                         view(&a);
 167                         break;
 168                 }
 169         }
 170         else if((c = getclient(ev->window))) {
 171                 focus(c);
 172                 switch(ev->button) {
 173                 default:
 174                         break;
 175                 case Button1:
 176                         if(!c->ismax && (arrange == dofloat || c->isfloat)) {
 177                                 higher(c);
 178                                 movemouse(c);
 179                         }
 180                         break;
 181                 case Button2:
 182                         lower(c);
 183                         break;
 184                 case Button3:
 185                         if(!c->ismax && (arrange == dofloat || c->isfloat)) {
 186                                 higher(c);
 187                                 resizemouse(c);
 188                         }
 189                         break;
 190                 }
 191         }
 192 }
 193
 194 static void
 195 configurerequest(XEvent *e)
 196 {
 197         Client *c;
 198         XConfigureRequestEvent *ev = &e->xconfigurerequest;
 199         XWindowChanges wc;
 200
 201         ev->value_mask &= ~CWSibling;
 202         if((c = getclient(ev->window))) {
 203                 gravitate(c, True);
 204                 if(ev->value_mask & CWX)
 205                         c->x = ev->x;
 206                 if(ev->value_mask & CWY)
 207                         c->y = ev->y;
 208                 if(ev->value_mask & CWWidth)
 209                         c->w = ev->width;
 210                 if(ev->value_mask & CWHeight)
 211                         c->h = ev->height;
 212                 if(ev->value_mask & CWBorderWidth)
 213                         c->border = 1;
 214                 gravitate(c, False);
 215                 resize(c, True, TopLeft);
 216         }
 217
 218         wc.x = ev->x;
 219         wc.y = ev->y;
 220         wc.width = ev->width;
 221         wc.height = ev->height;
 222         wc.border_width = 1;
 223         wc.sibling = None;
 224         wc.stack_mode = Above;
 225         ev->value_mask &= ~CWStackMode;
 226         ev->value_mask |= CWBorderWidth;
 227         XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
 228         XSync(dpy, False);
 229 }
 230
 231 static void
 232 destroynotify(XEvent *e)
 233 {
 234         Client *c;
 235         XDestroyWindowEvent *ev = &e->xdestroywindow;
 236
 237         if((c = getclient(ev->window)))
 238                 unmanage(c);
 239 }
 240
 241 static void
 242 enternotify(XEvent *e)
 243 {
 244         Client *c;
 245         XCrossingEvent *ev = &e->xcrossing;
 246
 247         if(ev->detail == NotifyInferior)
 248                 return;
 249
 250         if((c = getclient(ev->window)))
 251                 focus(c);
 252         else if(ev->window == root)
 253                 issel = True;
 254 }
 255
 256 static void
 257 expose(XEvent *e)
 258 {
 259         Client *c;
 260         XExposeEvent *ev = &e->xexpose;
 261
 262         if(ev->count == 0) {
 263                 if(barwin == ev->window)
 264                         drawstatus();
 265                 else if((c = getctitle(ev->window)))
 266                         drawtitle(c);
 267         }
 268 }
 269
 270 static void
 271 keypress(XEvent *e)
 272 {
 273         static unsigned int len = sizeof(key) / sizeof(key[0]);
 274         unsigned int i;
 275         KeySym keysym;
 276         XKeyEvent *ev = &e->xkey;
 277         ev->state &= valid_mask;
 278
 279         keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
 280         for(i = 0; i < len; i++)
 281                 if((keysym == key[i].keysym) && ((key[i].mod & valid_mask) == ev->state)) {
 282                         if(key[i].func)
 283                                 key[i].func(&key[i].arg);
 284                         return;
 285                 }
 286 }
 287
 288 static void
 289 leavenotify(XEvent *e)
 290 {
 291         XCrossingEvent *ev = &e->xcrossing;
 292
 293         if((ev->window == root) && !ev->same_screen)
 294                 issel = True;
 295 }
 296
 297 static void
 298 maprequest(XEvent *e)
 299 {
 300         static XWindowAttributes wa;
 301         XMapRequestEvent *ev = &e->xmaprequest;
 302
 303         if(!XGetWindowAttributes(dpy, ev->window, &wa))
 304                 return;
 305
 306         if(wa.override_redirect) {
 307                 XSelectInput(dpy, ev->window,
 308                                 (StructureNotifyMask | PropertyChangeMask));
 309                 return;
 310         }
 311
 312         if(!getclient(ev->window))
 313                 manage(ev->window, &wa);
 314 }
 315
 316 static void
 317 propertynotify(XEvent *e)
 318 {
 319         Client *c;
 320         Window trans;
 321         XPropertyEvent *ev = &e->xproperty;
 322
 323         if(ev->state == PropertyDelete)
 324                 return; /* ignore */
 325
 326         if((c = getclient(ev->window))) {
 327                 if(ev->atom == wmatom[WMProtocols]) {
 328                         c->proto = getproto(c->win);
 329                         return;
 330                 }
 331                 switch (ev->atom) {
 332                         default: break;
 333                         case XA_WM_TRANSIENT_FOR:
 334                                 XGetTransientForHint(dpy, c->win, &trans);
 335                                 if(!c->isfloat && (c->isfloat = (trans != 0)))
 336                                         arrange(NULL);
 337                                 break;
 338                         case XA_WM_NORMAL_HINTS:
 339                                 setsize(c);
 340                                 break;
 341                 }
 342                 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
 343                         settitle(c);
 344                         drawtitle(c);
 345                 }
 346         }
 347 }
 348
 349 static void
 350 unmapnotify(XEvent *e)
 351 {
 352         Client *c;
 353         XUnmapEvent *ev = &e->xunmap;
 354
 355         if((c = getclient(ev->window)))
 356                 unmanage(c);
 357 }
 358
 359 /* extern */
 360
 361 void (*handler[LASTEvent]) (XEvent *) = {
 362         [ButtonPress] = buttonpress,
 363         [ConfigureRequest] = configurerequest,
 364         [DestroyNotify] = destroynotify,
 365         [EnterNotify] = enternotify,
 366         [LeaveNotify] = leavenotify,
 367         [Expose] = expose,
 368         [KeyPress] = keypress,
 369         [MapRequest] = maprequest,
 370         [PropertyNotify] = propertynotify,
 371         [UnmapNotify] = unmapnotify
 372 };
 373
 374 void
 375 grabkeys()
 376 {
 377         static unsigned int len = sizeof(key) / sizeof(key[0]);
 378         unsigned int i;
 379         KeyCode code;
 380
 381         for(i = 0; i < len; i++) {
 382                 code = XKeysymToKeycode(dpy, key[i].keysym);
 383                 XUngrabKey(dpy, code, key[i].mod, root);
 384                 if (NumLockMask)
 385                 {
 386                         XUngrabKey(dpy, code, key[i].mod | NumLockMask, root);
 387                         XUngrabKey(dpy, code, key[i].mod | NumLockMask | LockMask, root);
 388                 }
 389                 XGrabKey(dpy, code, key[i].mod, root, True,
 390                                 GrabModeAsync, GrabModeAsync);
 391                 if (NumLockMask)
 392                 {
 393                         XGrabKey(dpy, code, key[i].mod | NumLockMask, root, True,
 394                                         GrabModeAsync, GrabModeAsync);
 395                         XGrabKey(dpy, code, key[i].mod | NumLockMask | LockMask, root, True,
 396                                         GrabModeAsync, GrabModeAsync);
 397                 }
 398         }
 399 }