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