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