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 "util.h"
  33 #include "window.h"
  34 #include "mouse.h"
  35 #include "ewmh.h"
  36 #include "client.h"
  37 #include "layouts/tile.h"
  38 #include "layouts/floating.h"
  39
  40
  41 extern AwesomeConf globalconf;
  42
  43 static void
  44 handle_mouse_button_press(int screen, unsigned int button, unsigned int state,
  45                           Button *buttons, char *arg)
  46 {
  47     Button *b;
  48
  49     for(b = buttons; b; b = b->next)
  50         if(button == b->button && CLEANMASK(state) == b->mod && b->func)
  51         {
  52             if(arg)
  53                 b->func(screen, arg);
  54             else
  55                 b->func(screen, b->arg);
  56             return;
  57         }
  58 }
  59
  60 void
  61 handle_event_buttonpress(XEvent *e)
  62 {
  63     int i, screen, x = 0, y = 0;
  64     unsigned int udummy;
  65     Client *c;
  66     Window wdummy;
  67     Widget *widget;
  68     Statusbar *statusbar;
  69     XButtonPressedEvent *ev = &e->xbutton;
  70
  71     for(screen = 0; screen < get_screen_count(); screen++)
  72         for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
  73             if(statusbar->window == ev->window)
  74                 switch(statusbar->position)
  75                 {
  76                   case Top:
  77                   case Bottom:
  78                     for(widget = statusbar->widgets; widget; widget = widget->next)
  79                         if(ev->x >= widget->area.x && ev->x < widget->area.x + widget->area.width
  80                            && ev->y >= widget->area.y && ev->y < widget->area.y + widget->area.height)
  81                         {
  82                             widget->button_press(widget, ev);
  83                             return;
  84                         }
  85                     break;
  86                   case Right:
  87                     for(widget = statusbar->widgets; widget; widget = widget->next)
  88                         if(ev->y >= widget->area.x && ev->y < widget->area.x + widget->area.width
  89                            && statusbar->height - ev->x >= widget->area.y
  90                            && statusbar->height - ev->x < widget->area.y + widget->area.height)
  91                         {
  92                             widget->button_press(widget, ev);
  93                             return;
  94                         }
  95                     break;
  96                  default:
  97                     for(widget = statusbar->widgets; widget; widget = widget->next)
  98                         if(statusbar->width - ev->y >= widget->area.x
  99                            && statusbar->width - ev->y < widget->area.x + widget->area.width
 100                            && ev->x >= widget->area.y && ev->x < widget->area.y + widget->area.height)
 101                         {
 102                             widget->button_press(widget, ev);
 103                             return;
 104                         }
 105                     break;
 106                 }
 107
 108     if((c = get_client_bywin(globalconf.clients, ev->window)))
 109     {
 110         focus(c, ev->same_screen, c->screen);
 111         if(CLEANMASK(ev->state) == NoSymbol
 112            && ev->button == Button1)
 113         {
 114             restack(c->screen);
 115             XAllowEvents(globalconf.display, ReplayPointer, CurrentTime);
 116             window_grabbuttons(get_phys_screen(c->screen), c->win, True, True);
 117         }
 118         else
 119             handle_mouse_button_press(c->screen, ev->button, ev->state, globalconf.buttons.client, NULL);
 120     }
 121     else
 122         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 123             if(RootWindow(e->xany.display, screen) == ev->window
 124                && XQueryPointer(e->xany.display,
 125                                 ev->window, &wdummy,
 126                                 &wdummy, &x, &y, &i,
 127                                 &i, &udummy))
 128             {
 129                 screen = get_screen_bycoord(x, y);
 130                 handle_mouse_button_press(screen, ev->button, ev->state,
 131                                           globalconf.buttons.root, NULL);
 132                 return;
 133             }
 134 }
 135
 136 void
 137 handle_event_configurerequest(XEvent * e)
 138 {
 139     Client *c;
 140     XConfigureRequestEvent *ev = &e->xconfigurerequest;
 141     XWindowChanges wc;
 142     int old_screen;
 143
 144     if((c = get_client_bywin(globalconf.clients, ev->window)))
 145     {
 146         if(c->isfixed)
 147         {
 148             if(ev->value_mask & CWX)
 149                 c->rx = c->x = ev->x - c->border;
 150             if(ev->value_mask & CWY)
 151                 c->ry = c->y = ev->y - c->border;
 152             if(ev->value_mask & CWWidth)
 153                 c->rw = c->w = ev->width;
 154             if(ev->value_mask & CWHeight)
 155                 c->rh = c->h = ev->height;
 156             if((ev->value_mask & (CWX | CWY)) && !(ev->value_mask & (CWWidth | CWHeight)))
 157                 window_configure(c->win, c->x, c->y, c->w, c->h, c->border);
 158             /* recompute screen */
 159             old_screen = c->screen;
 160             c->screen = get_screen_bycoord(c->x, c->y);
 161             if(old_screen != c->screen)
 162             {
 163                 move_client_to_screen(c, c->screen, False);
 164                 statusbar_draw_all(old_screen);
 165                 statusbar_draw_all(c->screen);
 166             }
 167             tag_client_with_rules(c);
 168             XMoveResizeWindow(e->xany.display, c->win, c->rx, c->ry, c->rw, c->rh);
 169             arrange(c->screen);
 170         }
 171         else
 172             window_configure(c->win, c->x, c->y, c->w, c->h, c->border);
 173     }
 174     else
 175     {
 176         wc.x = ev->x;
 177         wc.y = ev->y;
 178         wc.width = ev->width;
 179         wc.height = ev->height;
 180         wc.border_width = ev->border_width;
 181         wc.sibling = ev->above;
 182         wc.stack_mode = ev->detail;
 183         XConfigureWindow(e->xany.display, ev->window, ev->value_mask, &wc);
 184     }
 185     XSync(e->xany.display, False);
 186 }
 187
 188 void
 189 handle_event_configurenotify(XEvent * e)
 190 {
 191     XConfigureEvent *ev = &e->xconfigure;
 192     int screen;
 193     Area area;
 194
 195     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 196         if(ev->window == RootWindow(e->xany.display, screen)
 197            && (ev->width != DisplayWidth(e->xany.display, screen)
 198                || ev->height != DisplayHeight(e->xany.display, screen)))
 199         {
 200             DisplayWidth(e->xany.display, screen) = ev->width;
 201             DisplayHeight(e->xany.display, screen) = ev->height;
 202
 203             /* update statusbar */
 204             area = get_screen_area(screen, NULL, &globalconf.screens[screen].padding);
 205             globalconf.screens[screen].statusbar->width = area.width;
 206
 207             XResizeWindow(e->xany.display,
 208                           globalconf.screens[screen].statusbar->window,
 209                           globalconf.screens[screen].statusbar->width,
 210                           globalconf.screens[screen].statusbar->height);
 211
 212             statusbar_draw_all(screen);
 213             arrange(screen);
 214         }
 215 }
 216
 217 void
 218 handle_event_destroynotify(XEvent * e)
 219 {
 220     Client *c;
 221     XDestroyWindowEvent *ev = &e->xdestroywindow;
 222
 223     if((c = get_client_bywin(globalconf.clients, ev->window)))
 224         client_unmanage(c, WithdrawnState);
 225 }
 226
 227 void
 228 handle_event_enternotify(XEvent * e)
 229 {
 230     Client *c;
 231     XCrossingEvent *ev = &e->xcrossing;
 232     int screen;
 233     Tag **curtags;
 234
 235     if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
 236         return;
 237     if((c = get_client_bywin(globalconf.clients, ev->window)) && globalconf.screens[c->screen].sloppy_focus)
 238     {
 239         focus(c, ev->same_screen, c->screen);
 240         curtags = get_current_tags(c->screen);
 241         if (c->isfloating || curtags[0]->layout->arrange == layout_floating)
 242             window_grabbuttons(get_phys_screen(c->screen), c->win, True, False);
 243         p_delete(&curtags);
 244     }
 245     else
 246         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 247             if(ev->window == RootWindow(e->xany.display, screen))
 248                 focus(NULL, True, screen);
 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 < get_screen_count(); 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 && (c->isfloating = (get_client_bywin(globalconf.clients, trans) != NULL)))
 364                 arrange(c->screen);
 365             break;
 366           case XA_WM_NORMAL_HINTS:
 367             client_updatesizehints(c);
 368             break;
 369           case XA_WM_HINTS:
 370             client_updatewmhints(c);
 371             statusbar_draw_all(c->screen);
 372             break;
 373         }
 374         if(ev->atom == XA_WM_NAME || ev->atom == XInternAtom(globalconf.display, "_NET_WM_NAME", False))
 375         {
 376             client_updatetitle(c);
 377             if(c == globalconf.focus->client)
 378                 statusbar_draw_all(c->screen);
 379         }
 380     }
 381 }
 382
 383 void
 384 handle_event_unmapnotify(XEvent * e)
 385 {
 386     Client *c;
 387     XUnmapEvent *ev = &e->xunmap;
 388
 389     if((c = get_client_bywin(globalconf.clients, ev->window))
 390        && ev->event == RootWindow(e->xany.display, get_phys_screen(c->screen))
 391        && ev->send_event && window_getstate(c->win) == NormalState)
 392         client_unmanage(c, WithdrawnState);
 393 }
 394
 395 void
 396 handle_event_shape(XEvent * e)
 397 {
 398     XShapeEvent *ev = (XShapeEvent *) e;
 399     Client *c = get_client_bywin(globalconf.clients, ev->window);
 400
 401     if(c)
 402         window_setshape(get_phys_screen(c->screen), c->win);
 403 }
 404
 405 void
 406 handle_event_randr_screen_change_notify(XEvent *e)
 407 {
 408     XRRUpdateConfiguration(e);
 409 }
 410
 411 void
 412 handle_event_clientmessage(XEvent *e)
 413 {
 414     ewmh_process_client_message(&e->xclient);
 415 }
 416
 417 void
 418 grabkeys(int phys_screen)
 419 {
 420     Key *k;
 421     KeyCode code;
 422
 423     XUngrabKey(globalconf.display, AnyKey, AnyModifier, RootWindow(globalconf.display, phys_screen));
 424     for(k = globalconf.keys; k; k = k->next)
 425     {
 426         if((code = XKeysymToKeycode(globalconf.display, k->keysym)) == NoSymbol)
 427             continue;
 428         XGrabKey(globalconf.display, code, k->mod, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 429         XGrabKey(globalconf.display, code, k->mod | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 430         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 431         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 432     }
 433 }
 434 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80