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