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 #define ButtonMask      (ButtonPressMask | ButtonReleaseMask)
  12 #define MouseMask       (ButtonMask | PointerMotionMask)
  13
  14 /* CUSTOMIZE */
  15 const char *browse[] = { "firefox", NULL };
  16 const char *gimp[] = { "gimp", NULL };
  17 const char *term[] = {
  18         "urxvtc", "-tr", "+sb", "-bg", "black", "-fg", "white", "-cr", "white",
  19         "-fn", "-*-terminus-medium-*-*-*-13-*-*-*-*-*-iso10646-*", NULL
  20 };
  21 const char *xlock[] = { "xlock", NULL };
  22
  23 Key key[] = {
  24         /* modifier                             key                     function        arguments */
  25         { ControlMask,                  XK_0,           appendtag,      { .i = Tscratch } },
  26         { ControlMask,                  XK_1,           appendtag,      { .i = Tdev } },
  27         { ControlMask,                  XK_2,           appendtag,      { .i = Twww } },
  28         { ControlMask,                  XK_3,           appendtag,      { .i = Twork } },
  29         { Mod1Mask,                             XK_0,           view,           { .i = Tscratch } },
  30         { Mod1Mask,                             XK_1,           view,           { .i = Tdev } },
  31         { Mod1Mask,                             XK_2,           view,           { .i = Twww } },
  32         { Mod1Mask,                             XK_3,           view,           { .i = Twork } },
  33         { Mod1Mask,                             XK_j,           focusnext,              { 0 } },
  34         { Mod1Mask,                             XK_k,           focusprev,              { 0 } },
  35         { Mod1Mask,                             XK_m,           maximize,               { 0 } },
  36         { Mod1Mask,                             XK_space,       dotile,         { 0 } },
  37         { Mod1Mask,                             XK_Return,      zoom,           { 0 } },
  38         { ControlMask|ShiftMask,XK_0,           heretag,        { .i = Tscratch } },
  39         { ControlMask|ShiftMask,XK_1,           heretag,        { .i = Tdev } },
  40         { ControlMask|ShiftMask,XK_2,           heretag,        { .i = Twww } },
  41         { ControlMask|ShiftMask,XK_3,           heretag,        { .i = Twork } },
  42         { Mod1Mask|ShiftMask,   XK_0,           replacetag,             { .i = Tscratch } },
  43         { Mod1Mask|ShiftMask,   XK_1,           replacetag,             { .i = Tdev } },
  44         { Mod1Mask|ShiftMask,   XK_2,           replacetag,             { .i = Twww } },
  45         { Mod1Mask|ShiftMask,   XK_3,           replacetag,             { .i = Twork } },
  46         { Mod1Mask|ShiftMask,   XK_c,           killclient,             { 0 } },
  47         { Mod1Mask|ShiftMask,   XK_g,           spawn,          { .argv = gimp } },
  48         { Mod1Mask|ShiftMask,   XK_l,           spawn,          { .argv = xlock } },
  49         { Mod1Mask|ShiftMask,   XK_q,           quit,           { 0 } },
  50         { Mod1Mask|ShiftMask,   XK_space,       dofloat,        { 0 } },
  51         { Mod1Mask|ShiftMask,   XK_w,           spawn,          { .argv = browse } },
  52         { Mod1Mask|ShiftMask,   XK_Return,      spawn,          { .argv = term } },
  53 };
  54
  55 /* static */
  56
  57 static void
  58 movemouse(Client *c)
  59 {
  60         XEvent ev;
  61         int x1, y1, ocx, ocy, di;
  62         unsigned int dui;
  63         Window dummy;
  64
  65         ocx = *c->x;
  66         ocy = *c->y;
  67         if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
  68                                 None, cursor[CurMove], CurrentTime) != GrabSuccess)
  69                 return;
  70         XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
  71         for(;;) {
  72                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
  73                 switch (ev.type) {
  74                 default: break;
  75                 case Expose:
  76                         handler[Expose](&ev);
  77                         break;
  78                 case MotionNotify:
  79                         XSync(dpy, False);
  80                         *c->x = ocx + (ev.xmotion.x - x1);
  81                         *c->y = ocy + (ev.xmotion.y - y1);
  82                         resize(c, False, TopLeft);
  83                         break;
  84                 case ButtonRelease:
  85                         XUngrabPointer(dpy, CurrentTime);
  86                         return;
  87                 }
  88         }
  89 }
  90
  91 static void
  92 resizemouse(Client *c)
  93 {
  94         XEvent ev;
  95         int ocx, ocy;
  96         Corner sticky;
  97
  98         ocx = *c->x;
  99         ocy = *c->y;
 100         if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
 101                                 None, cursor[CurResize], CurrentTime) != GrabSuccess)
 102                 return;
 103         XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, *c->w, *c->h);
 104         for(;;) {
 105                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
 106                 switch(ev.type) {
 107                 default: break;
 108                 case Expose:
 109                         handler[Expose](&ev);
 110                         break;
 111                 case MotionNotify:
 112                         XSync(dpy, False);
 113                         *c->w = abs(ocx - ev.xmotion.x);
 114                         *c->h = abs(ocy - ev.xmotion.y);
 115                         *c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - *c->w;
 116                         *c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - *c->h;
 117                         if(ocx <= ev.xmotion.x) {
 118                                 if(ocy <= ev.xmotion.y)
 119                                         sticky = TopLeft;
 120                                 else
 121                                         sticky = BottomLeft;
 122                         } else {
 123                                 if(ocy <= ev.xmotion.y)
 124                                         sticky = TopRight;
 125                                 else
 126                                         sticky = BottomRight;
 127                         }
 128                         resize(c, True, sticky);
 129                         break;
 130                 case ButtonRelease:
 131                         XUngrabPointer(dpy, CurrentTime);
 132                         return;
 133                 }
 134         }
 135 }
 136
 137 static void
 138 buttonpress(XEvent *e)
 139 {
 140         int x;
 141         Arg a;
 142         XButtonPressedEvent *ev = &e->xbutton;
 143         Client *c;
 144
 145         if(barwin == ev->window) {
 146                 switch(ev->button) {
 147                 default:
 148                         x = 0;
 149                         for(a.i = 0; a.i < TLast; a.i++) {
 150                                 x += textw(tags[a.i]);
 151                                 if(ev->x < x) {
 152                                         view(&a);
 153                                         break;
 154                                 }
 155                         }
 156                         break;
 157                 case Button4:
 158                         a.i = (tsel + 1 < TLast) ? tsel + 1 : 0;
 159                         view(&a);
 160                         break;
 161                 case Button5:
 162                         a.i = (tsel - 1 >= 0) ? tsel - 1 : TLast - 1;
 163                         view(&a);
 164                         break;
 165                 }
 166         }
 167         else if((c = getclient(ev->window))) {
 168                 switch(ev->button) {
 169                 default:
 170                         break;
 171                 case Button1:
 172                         if(arrange == dotile && !c->isfloat) {
 173                                 if((ev->state & ControlMask) && (ev->button == Button1))
 174                                         zoom(NULL);
 175                         }
 176                         else {
 177                                 higher(c);
 178                                 movemouse(c);
 179                         }
 180                         break;
 181                 case Button2:
 182                         lower(c);
 183                         break;
 184                 case Button3:
 185                         if(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         XConfigureRequestEvent *ev = &e->xconfigurerequest;
 198         XWindowChanges wc;
 199         Client *c;
 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         XCrossingEvent *ev = &e->xcrossing;
 245         Client *c;
 246
 247         if(ev->mode != NotifyNormal || 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         XExposeEvent *ev = &e->xexpose;
 260         Client *c;
 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         XKeyEvent *ev = &e->xkey;
 274         static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
 275         unsigned int i;
 276         KeySym keysym;
 277
 278         keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
 279         for(i = 0; i < len; i++)
 280                 if((keysym == key[i].keysym) && (key[i].mod == ev->state)) {
 281                         if(key[i].func)
 282                                 key[i].func(&key[i].arg);
 283                         return;
 284                 }
 285 }
 286
 287 static void
 288 leavenotify(XEvent *e)
 289 {
 290         XCrossingEvent *ev = &e->xcrossing;
 291
 292         if((ev->window == root) && !ev->same_screen)
 293                 issel = True;
 294 }
 295
 296 static void
 297 maprequest(XEvent *e)
 298 {
 299         XMapRequestEvent *ev = &e->xmaprequest;
 300         static XWindowAttributes wa;
 301
 302         if(!XGetWindowAttributes(dpy, ev->window, &wa))
 303                 return;
 304
 305         if(wa.override_redirect) {
 306                 XSelectInput(dpy, ev->window,
 307                                 (StructureNotifyMask | PropertyChangeMask));
 308                 return;
 309         }
 310
 311         if(!getclient(ev->window))
 312                 manage(ev->window, &wa);
 313 }
 314
 315 static void
 316 propertynotify(XEvent *e)
 317 {
 318         XPropertyEvent *ev = &e->xproperty;
 319         Window trans;
 320         Client *c;
 321
 322         if(ev->state == PropertyDelete)
 323                 return; /* ignore */
 324
 325         if((c = getclient(ev->window))) {
 326                 if(ev->atom == wmatom[WMProtocols]) {
 327                         c->proto = getproto(c->win);
 328                         return;
 329                 }
 330                 switch (ev->atom) {
 331                         default: break;
 332                         case XA_WM_TRANSIENT_FOR:
 333                                 XGetTransientForHint(dpy, c->win, &trans);
 334                                 if(!c->isfloat && (c->isfloat = (trans != 0)))
 335                                         arrange(NULL);
 336                                 break;
 337                         case XA_WM_NORMAL_HINTS:
 338                                 setsize(c);
 339                                 break;
 340                 }
 341                 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
 342                         settitle(c);
 343                         drawtitle(c);
 344                 }
 345         }
 346 }
 347
 348 static void
 349 unmapnotify(XEvent *e)
 350 {
 351         Client *c;
 352         XUnmapEvent *ev = &e->xunmap;
 353
 354         if((c = getclient(ev->window)))
 355                 unmanage(c);
 356 }
 357
 358 /* extern */
 359
 360 void (*handler[LASTEvent]) (XEvent *) = {
 361         [ButtonPress] = buttonpress,
 362         [ConfigureRequest] = configurerequest,
 363         [DestroyNotify] = destroynotify,
 364         [EnterNotify] = enternotify,
 365         [LeaveNotify] = leavenotify,
 366         [Expose] = expose,
 367         [KeyPress] = keypress,
 368         [MapRequest] = maprequest,
 369         [PropertyNotify] = propertynotify,
 370         [UnmapNotify] = unmapnotify
 371 };
 372
 373 void
 374 grabkeys()
 375 {
 376         static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
 377         unsigned int i;
 378         KeyCode code;
 379
 380         for(i = 0; i < len; i++) {
 381                 code = XKeysymToKeycode(dpy, key[i].keysym);
 382                 XUngrabKey(dpy, code, key[i].mod, root);
 383                 XGrabKey(dpy, code, key[i].mod, root, True,
 384                                 GrabModeAsync, GrabModeAsync);
 385         }
 386 }