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 "widget.h"
  38 #include "xutil.h"
  39 #include "rules.h"
  40 #include "layouts/tile.h"
  41 #include "layouts/floating.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             restack(c->screen);
 117             XAllowEvents(globalconf.display, ReplayPointer, CurrentTime);
 118             window_grabbuttons(get_phys_screen(c->screen), c->win, True, True);
 119         }
 120         else
 121             handle_mouse_button_press(c->screen, ev->button, ev->state, globalconf.buttons.client, NULL);
 122     }
 123     else
 124         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 125             if(RootWindow(e->xany.display, screen) == ev->window
 126                && XQueryPointer(e->xany.display,
 127                                 ev->window, &wdummy,
 128                                 &wdummy, &x, &y, &i,
 129                                 &i, &udummy))
 130             {
 131                 screen = get_screen_bycoord(x, y);
 132                 handle_mouse_button_press(screen, ev->button, ev->state,
 133                                           globalconf.buttons.root, NULL);
 134                 return;
 135             }
 136 }
 137
 138 void
 139 handle_event_configurerequest(XEvent * e)
 140 {
 141     Client *c;
 142     XConfigureRequestEvent *ev = &e->xconfigurerequest;
 143     XWindowChanges wc;
 144     int old_screen;
 145     Area geometry;
 146
 147     if((c = get_client_bywin(globalconf.clients, ev->window)))
 148     {
 149         geometry = c->geometry;
 150
 151         if(ev->value_mask & CWX)
 152             geometry.x = ev->x;
 153         if(ev->value_mask & CWY)
 154             geometry.y = ev->y;
 155         if(ev->value_mask & CWWidth)
 156             geometry.width = ev->width;
 157         if(ev->value_mask & CWHeight)
 158             geometry.height = ev->height;
 159
 160         if(geometry.x != c->geometry.x || geometry.y != c->geometry.y
 161            || geometry.width != c->geometry.width || geometry.height != c->geometry.height)
 162         {
 163             old_screen = c->screen;
 164
 165             client_resize(c, geometry, False);
 166
 167             tag_client_with_rule(c, rule_matching_client(c));
 168
 169             if(old_screen != c->screen)
 170             {
 171                 widget_invalidate_cache(old_screen, WIDGET_CACHE_CLIENTS);
 172                 arrange(old_screen);
 173             }
 174             widget_invalidate_cache(c->screen, WIDGET_CACHE_CLIENTS);
 175             arrange(c->screen);
 176         }
 177         else
 178             window_configure(c->win, geometry, c->border);
 179     }
 180     else
 181     {
 182         wc.x = ev->x;
 183         wc.y = ev->y;
 184         wc.width = ev->width;
 185         wc.height = ev->height;
 186         wc.border_width = ev->border_width;
 187         wc.sibling = ev->above;
 188         wc.stack_mode = ev->detail;
 189         XConfigureWindow(e->xany.display, ev->window, ev->value_mask, &wc);
 190     }
 191 }
 192
 193 void
 194 handle_event_configurenotify(XEvent * e)
 195 {
 196     XConfigureEvent *ev = &e->xconfigure;
 197     int screen;
 198     Area area;
 199
 200     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 201         if(ev->window == RootWindow(e->xany.display, screen)
 202            && (ev->width != DisplayWidth(e->xany.display, screen)
 203                || ev->height != DisplayHeight(e->xany.display, screen)))
 204         {
 205             DisplayWidth(e->xany.display, screen) = ev->width;
 206             DisplayHeight(e->xany.display, screen) = ev->height;
 207
 208             /* update statusbar */
 209             area = get_screen_area(screen, NULL, &globalconf.screens[screen].padding);
 210             globalconf.screens[screen].statusbar->width = area.width;
 211
 212             XResizeWindow(e->xany.display,
 213                           globalconf.screens[screen].statusbar->window,
 214                           globalconf.screens[screen].statusbar->width,
 215                           globalconf.screens[screen].statusbar->height);
 216
 217             widget_invalidate_cache(screen, WIDGET_CACHE_ALL);
 218             arrange(screen);
 219         }
 220 }
 221
 222 void
 223 handle_event_destroynotify(XEvent * e)
 224 {
 225     Client *c;
 226     XDestroyWindowEvent *ev = &e->xdestroywindow;
 227
 228     if((c = get_client_bywin(globalconf.clients, ev->window)))
 229         client_unmanage(c);
 230 }
 231
 232 void
 233 handle_event_enternotify(XEvent * e)
 234 {
 235     Client *c;
 236     XCrossingEvent *ev = &e->xcrossing;
 237     int screen;
 238     Tag **curtags;
 239
 240     if(ev->mode != NotifyNormal)
 241         return;
 242     if((c = get_client_bywin(globalconf.clients, ev->window)) && globalconf.screens[c->screen].sloppy_focus)
 243     {
 244         focus(c, ev->same_screen, c->screen);
 245         curtags = get_current_tags(c->screen);
 246         if (c->isfloating || curtags[0]->layout->arrange == layout_floating)
 247             window_grabbuttons(get_phys_screen(c->screen), c->win, True, False);
 248         p_delete(&curtags);
 249     }
 250     else
 251     {
 252         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 253             if(ev->window == RootWindow(e->xany.display, screen))
 254                 focus(NULL, ev->same_screen, screen);
 255         if((c = globalconf.focus->client))
 256             window_grabbuttons(c->screen, c->win, False, False);
 257     }
 258 }
 259
 260 void
 261 handle_event_expose(XEvent *e)
 262 {
 263     XExposeEvent *ev = &e->xexpose;
 264     int screen;
 265     Statusbar *statusbar;
 266
 267     if(!ev->count)
 268         for(screen = 0; screen < globalconf.nscreens; screen++)
 269             for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
 270                 if(statusbar->window == ev->window)
 271                 {
 272                     statusbar_display(statusbar);
 273                     return;
 274                 }
 275 }
 276
 277 void
 278 handle_event_keypress(XEvent * e)
 279 {
 280     int screen, x, y, d;
 281     unsigned int m;
 282     KeySym keysym;
 283     XKeyEvent *ev = &e->xkey;
 284     Window dummy;
 285     Key *k;
 286     XEvent event;
 287
 288     keysym = XKeycodeToKeysym(e->xany.display, (KeyCode) ev->keycode, 0);
 289
 290     /* find the right screen for this event */
 291     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 292         if(XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen), &dummy, &dummy, &x, &y, &d, &d, &m))
 293         {
 294             /* if screen is 0, we are on first Zaphod screen or on the
 295              * only screen in Xinerama, so we can ask for a better screen
 296              * number with get_screen_bycoord: we'll get 0 in Zaphod mode
 297              * so it's the same, or maybe the real Xinerama screen */
 298             if(screen == 0)
 299                 screen = get_screen_bycoord(x, y);
 300             break;
 301         }
 302
 303     for(k = globalconf.keys; k; k = k->next)
 304         if(keysym == k->keysym && k->func
 305            && CLEANMASK(k->mod) == CLEANMASK(ev->state))
 306         {
 307             k->func(screen, k->arg);
 308             break;
 309         }
 310     while(XCheckMaskEvent(globalconf.display, EnterWindowMask, &event));
 311 }
 312
 313 void
 314 handle_event_leavenotify(XEvent * e)
 315 {
 316     XCrossingEvent *ev = &e->xcrossing;
 317     int screen;
 318
 319     for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 320         if((ev->window == RootWindow(e->xany.display, screen)) && !ev->same_screen)
 321             focus(NULL, ev->same_screen, screen);
 322 }
 323
 324 void
 325 handle_event_mappingnotify(XEvent *e)
 326 {
 327     XMappingEvent *ev = &e->xmapping;
 328     int screen;
 329
 330     XRefreshKeyboardMapping(ev);
 331     if(ev->request == MappingKeyboard)
 332         for(screen = 0; screen < ScreenCount(e->xany.display); screen++)
 333             grabkeys(get_phys_screen(screen));
 334 }
 335
 336 void
 337 handle_event_maprequest(XEvent *e)
 338 {
 339     static XWindowAttributes wa;
 340     XMapRequestEvent *ev = &e->xmaprequest;
 341     int screen, x, y, d;
 342     unsigned int m;
 343     Window dummy;
 344     XEvent event;
 345
 346     if(!XGetWindowAttributes(e->xany.display, ev->window, &wa))
 347         return;
 348     if(wa.override_redirect)
 349         return;
 350     if(!get_client_bywin(globalconf.clients, ev->window))
 351     {
 352         for(screen = 0; wa.screen != ScreenOfDisplay(e->xany.display, screen); screen++);
 353         if(screen == 0 && XQueryPointer(e->xany.display, RootWindow(e->xany.display, screen),
 354                                         &dummy, &dummy, &x, &y, &d, &d, &m))
 355             screen = get_screen_bycoord(x, y);
 356         client_manage(ev->window, &wa, screen);
 357         /* do this to keep focused client */
 358         while(XCheckMaskEvent(globalconf.display, EnterWindowMask, &event));
 359     }
 360 }
 361
 362 void
 363 handle_event_propertynotify(XEvent * e)
 364 {
 365     Client *c;
 366     Window trans;
 367     XPropertyEvent *ev = &e->xproperty;
 368
 369     if(ev->state == PropertyDelete)
 370         return;                 /* ignore */
 371     if((c = get_client_bywin(globalconf.clients, ev->window)))
 372     {
 373         switch (ev->atom)
 374         {
 375           case XA_WM_TRANSIENT_FOR:
 376             XGetTransientForHint(e->xany.display, c->win, &trans);
 377             if(!c->isfloating && (c->isfloating = (get_client_bywin(globalconf.clients, trans) != NULL)))
 378                 arrange(c->screen);
 379             break;
 380           case XA_WM_NORMAL_HINTS:
 381             client_updatesizehints(c);
 382             break;
 383           case XA_WM_HINTS:
 384             client_updatewmhints(c);
 385             break;
 386         }
 387         if(ev->atom == XA_WM_NAME || ev->atom == XInternAtom(globalconf.display, "_NET_WM_NAME", False))
 388             client_updatetitle(c);
 389     }
 390 }
 391
 392 void
 393 handle_event_unmapnotify(XEvent * e)
 394 {
 395     Client *c;
 396     XUnmapEvent *ev = &e->xunmap;
 397     XEvent event;
 398
 399     if((c = get_client_bywin(globalconf.clients, ev->window))
 400        && ev->event == RootWindow(e->xany.display, get_phys_screen(c->screen))
 401        && ev->send_event && window_getstate(c->win) == NormalState)
 402         client_unmanage(c);
 403     /* do this to keep focused client */
 404     while(XCheckMaskEvent(globalconf.display, EnterWindowMask, &event));
 405 }
 406
 407 void
 408 handle_event_shape(XEvent * e)
 409 {
 410     XShapeEvent *ev = (XShapeEvent *) e;
 411     Client *c = get_client_bywin(globalconf.clients, ev->window);
 412
 413     if(c)
 414         window_setshape(get_phys_screen(c->screen), c->win);
 415 }
 416
 417 void
 418 handle_event_randr_screen_change_notify(XEvent *e)
 419 {
 420     XRRUpdateConfiguration(e);
 421     uicb_exec(0, globalconf.argv);
 422 }
 423
 424 void
 425 handle_event_clientmessage(XEvent *e)
 426 {
 427     ewmh_process_client_message(&e->xclient);
 428 }
 429
 430 void
 431 grabkeys(int phys_screen)
 432 {
 433     Key *k;
 434     KeyCode code;
 435
 436     XUngrabKey(globalconf.display, AnyKey, AnyModifier, RootWindow(globalconf.display, phys_screen));
 437     for(k = globalconf.keys; k; k = k->next)
 438     {
 439         if((code = XKeysymToKeycode(globalconf.display, k->keysym)) == NoSymbol)
 440             continue;
 441         XGrabKey(globalconf.display, code, k->mod, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 442         XGrabKey(globalconf.display, code, k->mod | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 443         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 444         XGrabKey(globalconf.display, code, k->mod | globalconf.numlockmask | LockMask, RootWindow(globalconf.display, phys_screen), True, GrabModeAsync, GrabModeAsync);
 445     }
 446 }
 447 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80