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