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         { Mod1Mask|ShiftMask,   XK_0,           replacetag,             { .i = Tscratch } },
  39         { Mod1Mask|ShiftMask,   XK_1,           replacetag,             { .i = Tdev } },
  40         { Mod1Mask|ShiftMask,   XK_2,           replacetag,             { .i = Twww } },
  41         { Mod1Mask|ShiftMask,   XK_3,           replacetag,             { .i = Twork } },
  42         { Mod1Mask|ShiftMask,   XK_c,           killclient,             { 0 } },
  43         { Mod1Mask|ShiftMask,   XK_g,           spawn,          { .argv = gimp } },
  44         { Mod1Mask|ShiftMask,   XK_l,           spawn,          { .argv = xlock } },
  45         { Mod1Mask|ShiftMask,   XK_q,           quit,           { 0 } },
  46         { Mod1Mask|ShiftMask,   XK_space,       dofloat,        { 0 } },
  47         { Mod1Mask|ShiftMask,   XK_w,           spawn,          { .argv = browse } },
  48         { Mod1Mask|ShiftMask,   XK_Return,      spawn,          { .argv = term } },
  49 };
  50
  51 /* static */
  52
  53 static void
  54 movemouse(Client *c)
  55 {
  56         XEvent ev;
  57         int x1, y1, ocx, ocy, di;
  58         unsigned int dui;
  59         Window dummy;
  60
  61         ocx = c->x;
  62         ocy = c->y;
  63         if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
  64                                 None, cursor[CurMove], CurrentTime) != GrabSuccess)
  65                 return;
  66         XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
  67         for(;;) {
  68                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
  69                 switch (ev.type) {
  70                 default: break;
  71                 case Expose:
  72                         handler[Expose](&ev);
  73                         break;
  74                 case MotionNotify:
  75                         XSync(dpy, False);
  76                         c->x = ocx + (ev.xmotion.x - x1);
  77                         c->y = ocy + (ev.xmotion.y - y1);
  78                         resize(c, False);
  79                         break;
  80                 case ButtonRelease:
  81                         XUngrabPointer(dpy, CurrentTime);
  82                         return;
  83                 }
  84         }
  85 }
  86
  87 static void
  88 resizemouse(Client *c)
  89 {
  90         XEvent ev;
  91         int ocx, ocy;
  92
  93         ocx = c->x;
  94         ocy = c->y;
  95         if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
  96                                 None, cursor[CurResize], CurrentTime) != GrabSuccess)
  97                 return;
  98         XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
  99         for(;;) {
 100                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
 101                 switch(ev.type) {
 102                 default: break;
 103                 case Expose:
 104                         handler[Expose](&ev);
 105                         break;
 106                 case MotionNotify:
 107                         XSync(dpy, False);
 108                         c->w = abs(ocx - ev.xmotion.x);
 109                         c->h = abs(ocy - ev.xmotion.y);
 110                         c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
 111                         c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
 112                         resize(c, True);
 113                         break;
 114                 case ButtonRelease:
 115                         XUngrabPointer(dpy, CurrentTime);
 116                         return;
 117                 }
 118         }
 119 }
 120
 121 static void
 122 buttonpress(XEvent *e)
 123 {
 124         int x;
 125         Arg a;
 126         XButtonPressedEvent *ev = &e->xbutton;
 127         Client *c;
 128
 129         if(barwin == ev->window) {
 130                 switch(ev->button) {
 131                 default:
 132                         x = 0;
 133                         for(a.i = 0; a.i < TLast; a.i++) {
 134                                 x += textw(tags[a.i]);
 135                                 if(ev->x < x) {
 136                                         view(&a);
 137                                         break;
 138                                 }
 139                         }
 140                         break;
 141                 case Button4:
 142                         a.i = (tsel + 1 < TLast) ? tsel + 1 : 0;
 143                         view(&a);
 144                         break;
 145                 case Button5:
 146                         a.i = (tsel - 1 >= 0) ? tsel - 1 : TLast - 1;
 147                         view(&a);
 148                         break;
 149                 }
 150         }
 151         else if((c = getclient(ev->window))) {
 152                 if(arrange == dotile && !c->isfloat) {
 153                         if((ev->state & ControlMask) && (ev->button == Button1))
 154                                 zoom(NULL);
 155                         return;
 156                 }
 157                 /* floating windows */
 158                 higher(c);
 159                 switch(ev->button) {
 160                 default:
 161                         break;
 162                 case Button1:
 163                         movemouse(c);
 164                         break;
 165                 case Button2:
 166                         lower(c);
 167                         break;
 168                 case Button3:
 169                         resizemouse(c);
 170                         break;
 171                 }
 172         }
 173 }
 174
 175 static void
 176 configurerequest(XEvent *e)
 177 {
 178         XConfigureRequestEvent *ev = &e->xconfigurerequest;
 179         XWindowChanges wc;
 180         Client *c;
 181
 182         ev->value_mask &= ~CWSibling;
 183         if((c = getclient(ev->window))) {
 184                 gravitate(c, True);
 185                 if(ev->value_mask & CWX)
 186                         c->x = ev->x;
 187                 if(ev->value_mask & CWY)
 188                         c->y = ev->y;
 189                 if(ev->value_mask & CWWidth)
 190                         c->w = ev->width;
 191                 if(ev->value_mask & CWHeight)
 192                         c->h = ev->height;
 193                 if(ev->value_mask & CWBorderWidth)
 194                         c->border = 1;
 195                 gravitate(c, False);
 196                 resize(c, True);
 197         }
 198
 199         wc.x = ev->x;
 200         wc.y = ev->y;
 201         wc.width = ev->width;
 202         wc.height = ev->height;
 203         wc.border_width = 1;
 204         wc.sibling = None;
 205         wc.stack_mode = Above;
 206         ev->value_mask &= ~CWStackMode;
 207         ev->value_mask |= CWBorderWidth;
 208         XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
 209         XSync(dpy, False);
 210 }
 211
 212 static void
 213 destroynotify(XEvent *e)
 214 {
 215         Client *c;
 216         XDestroyWindowEvent *ev = &e->xdestroywindow;
 217
 218         if((c = getclient(ev->window)))
 219                 unmanage(c);
 220 }
 221
 222 static void
 223 enternotify(XEvent *e)
 224 {
 225         XCrossingEvent *ev = &e->xcrossing;
 226         Client *c;
 227
 228         if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
 229                 return;
 230
 231         if((c = getclient(ev->window)))
 232                 focus(c);
 233         else if(ev->window == root)
 234                 issel = True;
 235 }
 236
 237 static void
 238 expose(XEvent *e)
 239 {
 240         XExposeEvent *ev = &e->xexpose;
 241         Client *c;
 242
 243         if(ev->count == 0) {
 244                 if(barwin == ev->window)
 245                         drawstatus();
 246                 else if((c = getctitle(ev->window)))
 247                         drawtitle(c);
 248         }
 249 }
 250
 251 static void
 252 keypress(XEvent *e)
 253 {
 254         XKeyEvent *ev = &e->xkey;
 255         static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
 256         unsigned int i;
 257         KeySym keysym;
 258
 259         keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
 260         for(i = 0; i < len; i++)
 261                 if((keysym == key[i].keysym) && (key[i].mod == ev->state)) {
 262                         if(key[i].func)
 263                                 key[i].func(&key[i].arg);
 264                         return;
 265                 }
 266 }
 267
 268 static void
 269 leavenotify(XEvent *e)
 270 {
 271         XCrossingEvent *ev = &e->xcrossing;
 272
 273         if((ev->window == root) && !ev->same_screen)
 274                 issel = True;
 275 }
 276
 277 static void
 278 maprequest(XEvent *e)
 279 {
 280         XMapRequestEvent *ev = &e->xmaprequest;
 281         static XWindowAttributes wa;
 282
 283         if(!XGetWindowAttributes(dpy, ev->window, &wa))
 284                 return;
 285
 286         if(wa.override_redirect) {
 287                 XSelectInput(dpy, ev->window,
 288                                 (StructureNotifyMask | PropertyChangeMask));
 289                 return;
 290         }
 291
 292         if(!getclient(ev->window))
 293                 manage(ev->window, &wa);
 294 }
 295
 296 static void
 297 propertynotify(XEvent *e)
 298 {
 299         XPropertyEvent *ev = &e->xproperty;
 300         Window trans;
 301         Client *c;
 302
 303         if(ev->state == PropertyDelete)
 304                 return; /* ignore */
 305
 306         if((c = getclient(ev->window))) {
 307                 if(ev->atom == wmatom[WMProtocols]) {
 308                         c->proto = getproto(c->win);
 309                         return;
 310                 }
 311                 switch (ev->atom) {
 312                         default: break;
 313                         case XA_WM_TRANSIENT_FOR:
 314                                 XGetTransientForHint(dpy, c->win, &trans);
 315                                 if(!c->isfloat && (c->isfloat = (trans != 0)))
 316                                         arrange(NULL);
 317                                 break;
 318                         case XA_WM_NORMAL_HINTS:
 319                                 setsize(c);
 320                                 break;
 321                 }
 322                 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
 323                         settitle(c);
 324                         drawtitle(c);
 325                 }
 326         }
 327 }
 328
 329 static void
 330 unmapnotify(XEvent *e)
 331 {
 332         Client *c;
 333         XUnmapEvent *ev = &e->xunmap;
 334
 335         if((c = getclient(ev->window)))
 336                 unmanage(c);
 337 }
 338
 339 /* extern */
 340
 341 void (*handler[LASTEvent]) (XEvent *) = {
 342         [ButtonPress] = buttonpress,
 343         [ConfigureRequest] = configurerequest,
 344         [DestroyNotify] = destroynotify,
 345         [EnterNotify] = enternotify,
 346         [LeaveNotify] = leavenotify,
 347         [Expose] = expose,
 348         [KeyPress] = keypress,
 349         [MapRequest] = maprequest,
 350         [PropertyNotify] = propertynotify,
 351         [UnmapNotify] = unmapnotify
 352 };
 353
 354 void
 355 grabkeys()
 356 {
 357         static unsigned int len = key ? sizeof(key) / sizeof(key[0]) : 0;
 358         unsigned int i;
 359         KeyCode code;
 360
 361         for(i = 0; i < len; i++) {
 362                 code = XKeysymToKeycode(dpy, key[i].keysym);
 363                 XUngrabKey(dpy, code, key[i].mod, root);
 364                 XGrabKey(dpy, code, key[i].mod, root, True,
 365                                 GrabModeAsync, GrabModeAsync);
 366         }
 367 }