event.c

   1 /*
   2  * event.c - event handlers
   3  *
   4  * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <X11/keysym.h>
  23 #include <X11/Xatom.h>
  24 #include <X11/Xutil.h>
  25 #include <X11/extensions/shape.h>
  26 #include <X11/extensions/Xrandr.h>
  27
  28 #include "screen.h"
  29 #include "event.h"
  30 #include "tag.h"
  31 #include "statusbar.h"
  32 #include "window.h"
  33 #include "mouse.h"
  34 #include "ewmh.h"
  35 #include "client.h"
  36 #include "widget.h"
  37 #include "xutil.h"
  38 #include "rules.h"
  39 #include "layouts/tile.h"
  40 #include "layouts/floating.h"
  41 #include "common/util.h"
  42
  43 extern AwesomeConf globalconf;
  44
  45 static void
  46 handle_mouse_button_press(int screen, unsigned int button, unsigned int state,
  47                           Button *buttons, char *arg)
  48 {
  49     Button *b;
  50
  51     for(b = buttons; b; b = b->next)
  52         if(button == b->button && CLEANMASK(state) == b->mod && b->func)
  53         {
  54             if(arg)
  55                 b->func(screen, arg);
  56             else
  57                 b->func(screen, b->arg);
  58             return;
  59         }
  60 }
  61
  62 void
  63 handle_event_buttonpress(XEvent *e)
  64 {
  65     int i, screen, x = 0, y = 0;
  66     unsigned int udummy;
  67     Client *c;
  68     Window wdummy;
  69     Widget *widget;
  70     Statusbar *statusbar;
  71     XButtonPressedEvent *ev = &e->xbutton;
  72
  73     for(screen = 0; screen < globalconf.nscreens; screen++)
  74         for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
  75             if(statusbar->window == ev->window || statusbar->window == ev->subwindow)
  76                 switch(statusbar->position)
  77                 {
  78                   case Top:
  79                   case Bottom:
  80                     for(widget = statusbar->widgets; widget; widget = widget->next)
  81                         if(ev->x >= widget->area.x && ev->x < widget->area.x + widget->area.width
  82                            && ev->y >= widget->area.y && ev->y < widget->area.y + widget->area.height)
  83                         {
  84                             widget->button_press(widget, ev);
  85                             return;
  86                         }
  87                     break;
  88                   case Right:
  89                     for(widget = statusbar->widgets; widget; widget = widget->next)
  90                         if(ev->y >= widget->area.x && ev->y < widget->area.x + widget->area.width
  91                            && statusbar->height - ev->x >= widget->area.y
  92                            && statusbar->height - ev->x < widget->area.y + widget->area.height)
  93                         {
  94                             widget->button_press(widget, ev);
  95                             return;
  96                         }
  97                     break;
  98                  default:
  99                     for(widget = statusbar->widgets; widget; widget = widget->next)
 100                         if(statusbar->width - ev->y >= widget->area.x
 101                            && statusbar->width - ev->y < widget->area.x + widget->area.width
 102                            && ev->x >= widget->area.y && ev->x < widget->area.y + widget->area.height)
 103                         {
 104                             widget->button_press(widget, ev);
 105                             return;
 106                         }
 107                     break;
 108                 }
 109
 110     if((c = get_client_bywin(globalconf.clients, ev->window)))
 111     {
 112         focus(c, ev->same_screen, c->screen);
 113         if(CLEANMASK(ev->state) == NoSymbol
 114            && ev->button == Button1)
 115         {
 116             XAllowEvents(globalconf.display, ReplayPointer, CurrentTime);
 117             window_grabbuttons(get_phys_screen(c->screen), c->win, True, True);
 118         }
 119         else
 120             handle_mouse_button_press(c->screen, ev->button, ev->state, globalconf.buttons.client, NULL);
 121     }
 122     else
 123         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 124             if(RootWindow(e->xany.display, screen) == ev->window
 125                && XQueryPointer(e->xany.display,
 126                                 ev->window, &wdummy,
 127                                 &wdummy, &x, &y, &i,
 128                                 &i, &udummy))
 129             {
 130                 screen = get_screen_bycoord(x, y);
 131                 handle_mouse_button_press(screen, ev->button, ev->state,
 132                                           globalconf.buttons.root, NULL);
 133                 return;
 134             }
 135 }
 136
 137 void
 138 handle_event_configurerequest(XEvent * e)
 139 {
 140     Client *c;
 141     XConfigureRequestEvent *ev = &e->xconfigurerequest;
 142     XWindowChanges wc;
 143     int old_screen;
 144     Area geometry;
 145
 146     if((c = get_client_bywin(globalconf.clients, ev->window)))
 147     {
 148         geometry = c->geometry;
 149
 150         if(ev->value_mask & CWX)
 151             geometry.x = ev->x;
 152         if(ev->value_mask & CWY)
 153             geometry.y = ev->y;
 154         if(ev->value_mask & CWWidth)
 155             geometry.width = ev->width;
 156         if(ev->value_mask & CWHeight)
 157             geometry.height = ev->height;
 158
 159         if(geometry.x != c->geometry.x || geometry.y != c->geometry.y
 160            || geometry.width != c->geometry.width || geometry.height != c->geometry.height)
 161         {
 162             old_screen = c->screen;
 163
 164             client_resize(c, geometry, False);
 165
 166             tag_client_with_rule(c, rule_matching_client(c));
 167         }
 168         else
 169             window_configure(c->win, geometry, c->border);
 170     }
 171     else
 172     {
 173         wc.x = ev->x;
 174         wc.y = ev->y;
 175         wc.width = ev->width;
 176         wc.height = ev->height;
 177         wc.border_width = ev->border_width;
 178         wc.sibling = ev->above;
 179         wc.stack_mode = ev->detail;
 180         XConfigureWindow(e->xany.display, ev->window, ev->value_mask, &wc);
 181     }
 182 }
 183
 184 void
 185 handle_event_configurenotify(XEvent * e)
 186 {
 187     XConfigureEvent *ev = &e->xconfigure;
 188     int screen;
 189     Area area;
 190
 191     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 192         if(ev->window == RootWindow(e->xany.display, screen)
 193            && (ev->width != DisplayWidth(e->xany.display, screen)
 194                || ev->height != DisplayHeight(e->xany.display, screen)))
 195         {
 196             DisplayWidth(e->xany.display, screen) = ev->width;
 197             DisplayHeight(e->xany.display, screen) = ev->height;
 198
 199             /* update statusbar */
 200             area = get_screen_area(screen, NULL, &globalconf.screens[screen].padding);
 201             globalconf.screens[screen].statusbar->width = area.width;
 202
 203             XResizeWindow(e->xany.display,
 204                           globalconf.screens[screen].statusbar->window,
 205                           globalconf.screens[screen].statusbar->width,
 206                           globalconf.screens[screen].statusbar->height);
 207
 208             widget_invalidate_cache(screen, WIDGET_CACHE_ALL);
 209             globalconf.screens[screen].need_arrange = True;
 210         }
 211 }
 212
 213 void
 214 handle_event_destroynotify(XEvent * e)
 215 {
 216     Client *c;
 217     XDestroyWindowEvent *ev = &e->xdestroywindow;
 218
 219     if((c = get_client_bywin(globalconf.clients, ev->window)))
 220         client_unmanage(c);
 221 }
 222
 223 void
 224 handle_event_enternotify(XEvent * e)
 225 {
 226     Client *c;
 227     XCrossingEvent *ev = &e->xcrossing;
 228     int screen;
 229     Tag **curtags;
 230
 231     if(ev->mode != NotifyNormal)
 232         return;
 233     if((c = get_client_bywin(globalconf.clients, ev->window)) && globalconf.screens[c->screen].sloppy_focus)
 234     {
 235         focus(c, ev->same_screen, c->screen);
 236         curtags = get_current_tags(c->screen);
 237         if (c->isfloating || curtags[0]->layout->arrange == layout_floating)
 238             window_grabbuttons(get_phys_screen(c->screen), c->win, True, False);
 239         p_delete(&curtags);
 240     }
 241     else
 242     {
 243         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 244             if(ev->window == RootWindow(e->xany.display, screen))
 245                 focus(NULL, ev->same_screen, screen);
 246         if((c = globalconf.focus->client))
 247             window_grabbuttons(c->screen, c->win, False, False);
 248     }
 249 }
 250
 251 void
 252 handle_event_expose(XEvent *e)
 253 {
 254     XExposeEvent *ev = &e->xexpose;
 255     int screen;
 256     Statusbar *statusbar;
 257
 258     if(!ev->count)
 259         for(screen = 0; screen < globalconf.nscreens; screen++)
 260             for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
 261                 if(statusbar->window == ev->window)
 262                 {
 263                     statusbar_display(statusbar);
 264                     return;
 265                 }
 266 }
 267
 268 void
 269 handle_event_keypress(XEvent * e)
 270 {
 271     int screen, x, y, d;
 272     unsigned int m;
 273     KeySym keysym;
 274     XKeyEvent *ev = &e->xkey;
 275     Window dummy;
 276     Key *k;
 277
 278     keysym = XKeycodeToKeysym(e->xany.display, (KeyCode) ev->keycode, 0);
 279
 280     /* find the right screen for this event */
 281     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 282         if(XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen), &dummy, &dummy, &x, &y, &d, &d, &m))
 283         {
 284             /* if screen is 0, we are on first Zaphod screen or on the
 285              * only screen in Xinerama, so we can ask for a better screen
 286              * number with get_screen_bycoord: we'll get 0 in Zaphod mode
 287              * so it's the same, or maybe the real Xinerama screen */
 288             if(screen == 0)
 289                 screen = get_screen_bycoord(x, y);
 290             break;
 291         }
 292
 293     for(k = globalconf.keys; k; k = k->next)
 294         if(keysym == k->keysym && k->func
 295            && CLEANMASK(k->mod) == CLEANMASK(ev->state))
 296         {
 297             k->func(screen, k->arg);
 298             break;
 299         }
 300 }
 301
 302 void
 303 handle_event_leavenotify(XEvent * e)
 304 {
 305     XCrossingEvent *ev = &e->xcrossing;
 306     int screen;
 307
 308     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 309         if((ev->window == RootWindow(e->xany.display, screen)) && !ev->same_screen)
 310             focus(NULL, ev->same_screen, screen);
 311 }
 312
 313 void
 314 handle_event_mappingnotify(XEvent *e)
 315 {
 316     XMappingEvent *ev = &e->xmapping;
 317     int screen;
 318
 319     XRefreshKeyboardMapping(ev);
 320     if(ev->request == MappingKeyboard)
 321         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 322             grabkeys(get_phys_screen(screen));
 323 }
 324
 325 void
 326 handle_event_maprequest(XEvent *e)
 327 {
 328     static XWindowAttributes wa;
 329     XMapRequestEvent *ev = &e->xmaprequest;
 330     int screen, x, y, d;
 331     unsigned int m;
 332     Window dummy;
 333
 334     if(!XGetWindowAttributes(e->xany.display, ev->window, &wa))
 335         return;
 336     if(wa.override_redirect)
 337         return;
 338     if(!get_client_bywin(globalconf.clients, ev->window))
 339     {
 340         for(screen = 0; wa.screen != ScreenOfDisplay(e->xany.display, screen); screen++);
 341         if(screen == 0 && XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen),
 342                                         &dummy, &dummy, &x, &y, &d, &d, &m))
 343             screen = get_screen_bycoord(x, y);
 344         client_manage(ev->window, &wa, screen);
 345     }
 346 }
 347
 348 void
 349 handle_event_propertynotify(XEvent * e)
 350 {
 351     Client *c;
 352     Window trans;
 353     XPropertyEvent *ev = &e->xproperty;
 354
 355     if(ev->state == PropertyDelete)
 356         return;                 /* ignore */
 357     if((c = get_client_bywin(globalconf.clients, ev->window)))
 358     {
 359         switch (ev->atom)
 360         {
 361           case XA_WM_TRANSIENT_FOR:
 362             XGetTransientForHint(e->xany.display, c->win, &trans);
 363             if(!c->isfloating
 364                && (c->isfloating = (get_client_bywin(globalconf.clients, trans) != NULL)))
 365                 globalconf.screens[c->screen].need_arrange = True;
 366             break;
 367           case XA_WM_NORMAL_HINTS:
 368             client_updatesizehints(c);
 369             break;
 370           case XA_WM_HINTS:
 371             client_updatewmhints(c);
 372             break;
 373         }
 374         if(ev->atom == XA_WM_NAME || ev->atom == XInternAtom(globalconf.display, "_NET_WM_NAME", False))
 375             client_updatetitle(c);
 376     }
 377 }
 378
 379 void
 380 handle_event_unmapnotify(XEvent * e)
 381 {
 382     Client *c;
 383     XUnmapEvent *ev = &e->xunmap;
 384
 385     if((c = get_client_bywin(globalconf.clients, ev->window))
 386        && ev->event == RootWindow(e->xany.display, get_phys_screen(c->screen))
 387        && ev->send_event && window_getstate(c->win) == NormalState)
 388         client_unmanage(c);
 389 }
 390
 391 void
 392 handle_event_shape(XEvent * e)
 393 {
 394     XShapeEvent *ev = (XShapeEvent *) e;
 395     Client *c = get_client_bywin(globalconf.clients, ev->window);
 396
 397     if(c)
 398         window_setshape(get_phys_screen(c->screen), c->win);
 399 }
 400
 401 void
 402 handle_event_randr_screen_change_notify(XEvent *e)
 403 {
 404     XRRUpdateConfiguration(e);
 405     uicb_exec(0, globalconf.argv);
 406 }
 407
 408 void
 409 handle_event_clientmessage(XEvent *e)
 410 {
 411     ewmh_process_client_message(&e->xclient);
 412 }
 413
 414 void
 415 grabkeys(int phys_screen)
 416 {
 417     Key *k;
 418     KeyCode code;
 419
 420     XUngrabKey(globalconf.display, AnyKey, AnyModifier, RootWindow(globalconf.display, phys_screen));
 421     for(k = globalconf.keys; k; k = k->next)
 422     {
 423         if((code = XKeysymToKeycode(globalconf.display, k->keysym)) == NoSymbol)
 424             continue;
 425         XGrabKey(globalconf.display, code, k->mod, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 426         XGrabKey(globalconf.display, code, k->mod | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 427         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 428         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 429     }
 430 }
 431 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80