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     Area geometry;
 144
 145     if((c = get_client_bywin(globalconf.clients, ev->window)))
 146     {
 147         geometry = c->geometry;
 148
 149         if(ev->value_mask & CWX)
 150             geometry.x = ev->x;
 151         if(ev->value_mask & CWY)
 152             geometry.y = ev->y;
 153         if(ev->value_mask & CWWidth)
 154             geometry.width = ev->width;
 155         if(ev->value_mask & CWHeight)
 156             geometry.height = ev->height;
 157
 158         if(geometry.x != c->geometry.x || geometry.y != c->geometry.y
 159            || geometry.width != c->geometry.width || geometry.height != c->geometry.height)
 160         {
 161             old_screen = c->screen;
 162
 163             client_resize(c, geometry, False);
 164
 165             tag_client_with_rules(c);
 166
 167             if(old_screen != c->screen)
 168             {
 169                 statusbar_draw_all(old_screen);
 170                 arrange(old_screen);
 171             }
 172             statusbar_draw_all(c->screen);
 173             arrange(c->screen);
 174         }
 175         else
 176             window_configure(c->win, geometry, c->border);
 177     }
 178     else
 179     {
 180         wc.x = ev->x;
 181         wc.y = ev->y;
 182         wc.width = ev->width;
 183         wc.height = ev->height;
 184         wc.border_width = ev->border_width;
 185         wc.sibling = ev->above;
 186         wc.stack_mode = ev->detail;
 187         XConfigureWindow(e->xany.display, ev->window, ev->value_mask, &wc);
 188     }
 189     XSync(e->xany.display, False);
 190 }
 191
 192 void
 193 handle_event_configurenotify(XEvent * e)
 194 {
 195     XConfigureEvent *ev = &e->xconfigure;
 196     int screen;
 197     Area area;
 198
 199     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 200         if(ev->window == RootWindow(e->xany.display, screen)
 201            && (ev->width != DisplayWidth(e->xany.display, screen)
 202                || ev->height != DisplayHeight(e->xany.display, screen)))
 203         {
 204             DisplayWidth(e->xany.display, screen) = ev->width;
 205             DisplayHeight(e->xany.display, screen) = ev->height;
 206
 207             /* update statusbar */
 208             area = get_screen_area(screen, NULL, &globalconf.screens[screen].padding);
 209             globalconf.screens[screen].statusbar->width = area.width;
 210
 211             XResizeWindow(e->xany.display,
 212                           globalconf.screens[screen].statusbar->window,
 213                           globalconf.screens[screen].statusbar->width,
 214                           globalconf.screens[screen].statusbar->height);
 215
 216             statusbar_draw_all(screen);
 217             arrange(screen);
 218         }
 219 }
 220
 221 void
 222 handle_event_destroynotify(XEvent * e)
 223 {
 224     Client *c;
 225     XDestroyWindowEvent *ev = &e->xdestroywindow;
 226
 227     if((c = get_client_bywin(globalconf.clients, ev->window)))
 228         client_unmanage(c);
 229 }
 230
 231 void
 232 handle_event_enternotify(XEvent * e)
 233 {
 234     Client *c;
 235     XCrossingEvent *ev = &e->xcrossing;
 236     int screen;
 237     Tag **curtags;
 238
 239     if(ev->mode != NotifyNormal)
 240         return;
 241     if((c = get_client_bywin(globalconf.clients, ev->window)) && globalconf.screens[c->screen].sloppy_focus)
 242     {
 243         focus(c, ev->same_screen, c->screen);
 244         curtags = get_current_tags(c->screen);
 245         if (c->isfloating || curtags[0]->layout->arrange == layout_floating)
 246             window_grabbuttons(get_phys_screen(c->screen), c->win, True, False);
 247         p_delete(&curtags);
 248     }
 249     else {
 250         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 251             if(ev->window == RootWindow(e->xany.display, screen))
 252                 focus(NULL, True, screen);
 253         if ((c = globalconf.focus->client))
 254             window_grabbuttons(c->screen, c->win, False, False);
 255     }
 256 }
 257
 258 void
 259 handle_event_expose(XEvent *e)
 260 {
 261     XExposeEvent *ev = &e->xexpose;
 262     int screen;
 263     Statusbar *statusbar;
 264
 265     if(!ev->count)
 266         for(screen = 0; screen < get_screen_count(); screen++)
 267             for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
 268                 if(statusbar->window == ev->window)
 269                 {
 270                     statusbar_display(statusbar);
 271                     return;
 272                 }
 273 }
 274
 275 void
 276 handle_event_keypress(XEvent * e)
 277 {
 278     int screen, x, y, d;
 279     unsigned int m;
 280     KeySym keysym;
 281     XKeyEvent *ev = &e->xkey;
 282     Window dummy;
 283     Key *k;
 284
 285     keysym = XKeycodeToKeysym(e->xany.display, (KeyCode) ev->keycode, 0);
 286
 287     /* find the right screen for this event */
 288     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 289         if(XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen), &dummy, &dummy, &x, &y, &d, &d, &m))
 290         {
 291             /* if screen is 0, we are on first Zaphod screen or on the
 292              * only screen in Xinerama, so we can ask for a better screen
 293              * number with get_screen_bycoord: we'll get 0 in Zaphod mode
 294              * so it's the same, or maybe the real Xinerama screen */
 295             if(screen == 0)
 296                 screen = get_screen_bycoord(x, y);
 297             break;
 298         }
 299
 300     for(k = globalconf.keys; k; k = k->next)
 301         if(keysym == k->keysym && k->func
 302            && CLEANMASK(k->mod) == CLEANMASK(ev->state))
 303         {
 304             k->func(screen, k->arg);
 305             break;
 306         }
 307 }
 308
 309 void
 310 handle_event_leavenotify(XEvent * e)
 311 {
 312     XCrossingEvent *ev = &e->xcrossing;
 313     int screen;
 314
 315     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 316         if((ev->window == RootWindow(e->xany.display, screen)) && !ev->same_screen)
 317             focus(NULL, ev->same_screen, screen);
 318 }
 319
 320 void
 321 handle_event_mappingnotify(XEvent * e)
 322 {
 323     XMappingEvent *ev = &e->xmapping;
 324     int screen;
 325
 326     XRefreshKeyboardMapping(ev);
 327     if(ev->request == MappingKeyboard)
 328         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 329             grabkeys(get_phys_screen(screen));
 330 }
 331
 332 void
 333 handle_event_maprequest(XEvent * e)
 334 {
 335     static XWindowAttributes wa;
 336     XMapRequestEvent *ev = &e->xmaprequest;
 337     int screen, x, y, d;
 338     unsigned int m;
 339     Window dummy;
 340
 341     if(!XGetWindowAttributes(e->xany.display, ev->window, &wa))
 342         return;
 343     if(wa.override_redirect)
 344         return;
 345     if(!get_client_bywin(globalconf.clients, ev->window))
 346     {
 347         for(screen = 0; wa.screen != ScreenOfDisplay(e->xany.display, screen); screen++);
 348         if(screen == 0 && XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen),
 349                                         &dummy, &dummy, &x, &y, &d, &d, &m))
 350             screen = get_screen_bycoord(x, y);
 351         client_manage(ev->window, &wa, screen);
 352     }
 353 }
 354
 355 void
 356 handle_event_propertynotify(XEvent * e)
 357 {
 358     Client *c;
 359     Window trans;
 360     XPropertyEvent *ev = &e->xproperty;
 361
 362     if(ev->state == PropertyDelete)
 363         return;                 /* ignore */
 364     if((c = get_client_bywin(globalconf.clients, ev->window)))
 365     {
 366         switch (ev->atom)
 367         {
 368           case XA_WM_TRANSIENT_FOR:
 369             XGetTransientForHint(e->xany.display, c->win, &trans);
 370             if(!c->isfloating && (c->isfloating = (get_client_bywin(globalconf.clients, trans) != NULL)))
 371                 arrange(c->screen);
 372             break;
 373           case XA_WM_NORMAL_HINTS:
 374             client_updatesizehints(c);
 375             break;
 376           case XA_WM_HINTS:
 377             client_updatewmhints(c);
 378             statusbar_draw_all(c->screen);
 379             break;
 380         }
 381         if(ev->atom == XA_WM_NAME || ev->atom == XInternAtom(globalconf.display, "_NET_WM_NAME", False))
 382         {
 383             client_updatetitle(c);
 384             if(c == globalconf.focus->client)
 385                 statusbar_draw_all(c->screen);
 386         }
 387     }
 388 }
 389
 390 void
 391 handle_event_unmapnotify(XEvent * e)
 392 {
 393     Client *c;
 394     XUnmapEvent *ev = &e->xunmap;
 395
 396     if((c = get_client_bywin(globalconf.clients, ev->window))
 397        && ev->event == RootWindow(e->xany.display, get_phys_screen(c->screen))
 398        && ev->send_event && window_getstate(c->win) == NormalState)
 399         client_unmanage(c);
 400 }
 401
 402 void
 403 handle_event_shape(XEvent * e)
 404 {
 405     XShapeEvent *ev = (XShapeEvent *) e;
 406     Client *c = get_client_bywin(globalconf.clients, ev->window);
 407
 408     if(c)
 409         window_setshape(get_phys_screen(c->screen), c->win);
 410 }
 411
 412 void
 413 handle_event_randr_screen_change_notify(XEvent *e)
 414 {
 415     XRRUpdateConfiguration(e);
 416 }
 417
 418 void
 419 handle_event_clientmessage(XEvent *e)
 420 {
 421     ewmh_process_client_message(&e->xclient);
 422 }
 423
 424 void
 425 grabkeys(int phys_screen)
 426 {
 427     Key *k;
 428     KeyCode code;
 429
 430     XUngrabKey(globalconf.display, AnyKey, AnyModifier, RootWindow(globalconf.display, phys_screen));
 431     for(k = globalconf.keys; k; k = k->next)
 432     {
 433         if((code = XKeysymToKeycode(globalconf.display, k->keysym)) == NoSymbol)
 434             continue;
 435         XGrabKey(globalconf.display, code, k->mod, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 436         XGrabKey(globalconf.display, code, k->mod | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 437         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 438         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 439     }
 440 }
 441 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80