openbox/event.c

   1 #include "debug.h"
   2 #include "openbox.h"
   3 #include "dock.h"
   4 #include "client.h"
   5 #include "xerror.h"
   6 #include "prop.h"
   7 #include "config.h"
   8 #include "screen.h"
   9 #include "frame.h"
  10 #include "menu.h"
  11 #include "framerender.h"
  12 #include "focus.h"
  13 #include "moveresize.h"
  14 #include "stacking.h"
  15 #include "extensions.h"
  16 #include "timer.h"
  17 #include "dispatch.h"
  18 #include "event.h"
  19
  20 #include <X11/Xlib.h>
  21 #include <X11/keysym.h>
  22 #include <X11/Xatom.h>
  23 #include <glib.h>
  24
  25 #ifdef USE_LIBSN
  26 #  include <libsn/sn.h>
  27 #endif
  28
  29 #ifdef HAVE_SYS_SELECT_H
  30 #  include <sys/select.h>
  31 #endif
  32 #ifdef HAVE_SIGNAL_H
  33 #  include <signal.h>
  34 #endif
  35
  36 #ifdef USE_SM
  37 #include <X11/ICE/ICElib.h>
  38 #endif
  39
  40 static void event_process(XEvent *e);
  41 static void event_handle_root(XEvent *e);
  42 static void event_handle_dock(ObDock *s, XEvent *e);
  43 static void event_handle_dockapp(ObDockApp *app, XEvent *e);
  44 static void event_handle_client(ObClient *c, XEvent *e);
  45 static void event_handle_menu(ObClient *c, XEvent *e);
  46 static void fd_event_handle();
  47 #ifdef USE_SM
  48 static void ice_watch(IceConn conn, IcePointer data, Bool opening,
  49                       IcePointer *watch_data);
  50 #endif
  51 static void find_max_fd();
  52
  53 #define INVALID_FOCUSIN(e) ((e)->xfocus.detail == NotifyInferior || \
  54                             (e)->xfocus.detail == NotifyAncestor || \
  55                             (e)->xfocus.detail > NotifyNonlinearVirtual)
  56 #define INVALID_FOCUSOUT(e) ((e)->xfocus.mode == NotifyGrab || \
  57                              (e)->xfocus.detail == NotifyInferior || \
  58                              (e)->xfocus.detail == NotifyAncestor || \
  59                              (e)->xfocus.detail > NotifyNonlinearVirtual)
  60
  61 Time event_lasttime = 0;
  62
  63 /*! The value of the mask for the NumLock modifier */
  64 unsigned int NumLockMask;
  65 /*! The value of the mask for the ScrollLock modifier */
  66 unsigned int ScrollLockMask;
  67 /*! The key codes for the modifier keys */
  68 static XModifierKeymap *modmap;
  69 /*! Table of the constant modifier masks */
  70 static const int mask_table[] = {
  71     ShiftMask, LockMask, ControlMask, Mod1Mask,
  72     Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
  73 };
  74 static int mask_table_size;
  75
  76 static fd_set selset, allset;
  77 #ifdef USE_SM
  78 static IceConn ice_conn;
  79 static int ice_fd;
  80 #endif
  81 static int max_fd, x_fd;
  82 static GData *fd_handler_list;
  83
  84
  85 #ifdef USE_SM
  86 static void ice_watch(IceConn conn, IcePointer data, Bool opening,
  87                       IcePointer *watch_data)
  88 {
  89     if (opening) {
  90         g_assert (ice_fd < 0);
  91         ice_conn = conn;
  92         ice_fd = IceConnectionNumber(conn);
  93         FD_SET(ice_fd, &allset);
  94     } else {
  95         FD_CLR(ice_fd, &allset);
  96         ice_fd = -1;
  97     }
  98     find_max_fd();
  99 }
 100 #endif
 101
 102 void event_startup()
 103 {
 104     mask_table_size = sizeof(mask_table) / sizeof(mask_table[0]);
 105
 106     /* get lock masks that are defined by the display (not constant) */
 107     modmap = XGetModifierMapping(ob_display);
 108     g_assert(modmap);
 109     if (modmap && modmap->max_keypermod > 0) {
 110         size_t cnt;
 111         const size_t size = mask_table_size * modmap->max_keypermod;
 112         /* get the values of the keyboard lock modifiers
 113            Note: Caps lock is not retrieved the same way as Scroll and Num
 114            lock since it doesn't need to be. */
 115         const KeyCode num_lock = XKeysymToKeycode(ob_display, XK_Num_Lock);
 116         const KeyCode scroll_lock = XKeysymToKeycode(ob_display,
 117                                                      XK_Scroll_Lock);
 118
 119         for (cnt = 0; cnt < size; ++cnt) {
 120             if (! modmap->modifiermap[cnt]) continue;
 121
 122             if (num_lock == modmap->modifiermap[cnt])
 123                 NumLockMask = mask_table[cnt / modmap->max_keypermod];
 124             if (scroll_lock == modmap->modifiermap[cnt])
 125                 ScrollLockMask = mask_table[cnt / modmap->max_keypermod];
 126         }
 127     }
 128
 129     FD_ZERO(&allset);
 130     max_fd = x_fd = ConnectionNumber(ob_display);
 131     FD_SET(x_fd, &allset);
 132
 133 #ifdef USE_SM
 134     ice_fd = -1;
 135     IceAddConnectionWatch(ice_watch, NULL);
 136 #endif
 137
 138     g_datalist_init(&fd_handler_list);
 139 }
 140
 141 void event_shutdown()
 142 {
 143     XFreeModifiermap(modmap);
 144     g_datalist_clear(&fd_handler_list);
 145 }
 146
 147 void event_loop()
 148 {
 149     XEvent e;
 150     struct timeval *wait;
 151     gboolean had_event = FALSE;
 152
 153     while (XPending(ob_display)) {
 154         XNextEvent(ob_display, &e);
 155
 156 #ifdef USE_LIBSN
 157         sn_display_process_event(ob_sn_display, &e);
 158 #endif
 159
 160         event_process(&e);
 161         had_event = TRUE;
 162     }
 163
 164     if (!had_event) {
 165         timer_dispatch((GTimeVal**)&wait);
 166         selset = allset;
 167         select(max_fd + 1, &selset, NULL, NULL, wait);
 168
 169         /* handle the X events as soon as possible? */
 170         if (FD_ISSET(x_fd, &selset))
 171             return;
 172
 173 #ifdef USE_SM
 174         if (ice_fd >= 0 && FD_ISSET(ice_fd, &selset)) {
 175             Bool b;
 176             IceProcessMessages(ice_conn, NULL, &b);
 177         }
 178 #endif
 179
 180         fd_event_handle();
 181     }
 182 }
 183
 184 static Window event_get_window(XEvent *e)
 185 {
 186     Window window;
 187
 188     /* pick a window */
 189     switch (e->type) {
 190     case SelectionClear:
 191         window = RootWindow(ob_display, ob_screen);
 192         break;
 193     case MapRequest:
 194         window = e->xmap.window;
 195         break;
 196     case UnmapNotify:
 197         window = e->xunmap.window;
 198         break;
 199     case DestroyNotify:
 200         window = e->xdestroywindow.window;
 201         break;
 202     case ConfigureRequest:
 203         window = e->xconfigurerequest.window;
 204         break;
 205     case ConfigureNotify:
 206         window = e->xconfigure.window;
 207         break;
 208     default:
 209 #ifdef XKB
 210         if (extensions_xkb && e->type == extensions_xkb_event_basep) {
 211             switch (((XkbAnyEvent*)&e)->xkb_type) {
 212             case XkbBellNotify:
 213                 window = ((XkbBellNotifyEvent*)&e)->window;
 214             default:
 215                 window = None;
 216             }
 217         } else
 218 #endif
 219             window = e->xany.window;
 220     }
 221     return window;
 222 }
 223
 224 static void event_set_lasttime(XEvent *e)
 225 {
 226     /* grab the lasttime and hack up the state */
 227     switch (e->type) {
 228     case ButtonPress:
 229     case ButtonRelease:
 230         event_lasttime = e->xbutton.time;
 231         break;
 232     case KeyPress:
 233         event_lasttime = e->xkey.time;
 234         break;
 235     case KeyRelease:
 236         event_lasttime = e->xkey.time;
 237         break;
 238     case MotionNotify:
 239         event_lasttime = e->xmotion.time;
 240         break;
 241     case PropertyNotify:
 242         event_lasttime = e->xproperty.time;
 243         break;
 244     case EnterNotify:
 245     case LeaveNotify:
 246         event_lasttime = e->xcrossing.time;
 247         break;
 248     default:
 249         event_lasttime = CurrentTime;
 250         break;
 251     }
 252 }
 253
 254 #define STRIP_MODS(s) \
 255         s &= ~(LockMask | NumLockMask | ScrollLockMask), \
 256         /* kill off the Button1Mask etc, only want the modifiers */ \
 257         s &= (ControlMask | ShiftMask | Mod1Mask | \
 258               Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask) \
 259
 260 static void event_hack_mods(XEvent *e)
 261 {
 262     KeyCode *kp;
 263     int i, k;
 264
 265     switch (e->type) {
 266     case ButtonPress:
 267     case ButtonRelease:
 268         STRIP_MODS(e->xbutton.state);
 269         break;
 270     case KeyPress:
 271         STRIP_MODS(e->xkey.state);
 272         break;
 273     case KeyRelease:
 274         STRIP_MODS(e->xkey.state);
 275         /* remove from the state the mask of the modifier being released, if
 276            it is a modifier key being released (this is a little ugly..) */
 277         kp = modmap->modifiermap;
 278         for (i = 0; i < mask_table_size; ++i) {
 279             for (k = 0; k < modmap->max_keypermod; ++k) {
 280                 if (*kp == e->xkey.keycode) { /* found the keycode */
 281                     /* remove the mask for it */
 282                     e->xkey.state &= ~mask_table[i];
 283                     /* cause the first loop to break; */
 284                     i = mask_table_size;
 285                     break; /* get outta here! */
 286                 }
 287                 ++kp;
 288             }
 289         }
 290         break;
 291     case MotionNotify:
 292         STRIP_MODS(e->xmotion.state);
 293         /* compress events */
 294         {
 295             XEvent ce;
 296             while (XCheckTypedWindowEvent(ob_display, e->xmotion.window,
 297                                           e->type, &ce)) {
 298                 e->xmotion.x_root = ce.xmotion.x_root;
 299                 e->xmotion.y_root = ce.xmotion.y_root;
 300             }
 301         }
 302         break;
 303     }
 304 }
 305
 306 static gboolean event_ignore(XEvent *e, ObClient *client)
 307 {
 308     switch(e->type) {
 309     case FocusIn:
 310         /* NotifyAncestor is not ignored in FocusIn like it is in FocusOut
 311            because of RevertToPointerRoot. If the focus ends up reverting to
 312            pointer root on a workspace change, then the FocusIn event that we
 313            want will be of type NotifyAncestor. This situation does not occur
 314            for FocusOut, so it is safely ignored there.
 315         */
 316         if (INVALID_FOCUSIN(e) ||
 317             client == NULL) {
 318 #ifdef DEBUG_FOCUS
 319         ob_debug("FocusIn on %lx mode %d detail %d IGNORED\n",
 320                  e->xfocus.window, e->xfocus.mode, e->xfocus.detail);
 321 #endif
 322             /* says a client was not found for the event (or a valid FocusIn
 323                event was not found.
 324             */
 325             e->xfocus.window = None;
 326             return TRUE;
 327         }
 328
 329 #ifdef DEBUG_FOCUS
 330         ob_debug("FocusIn on %lx mode %d detail %d\n", e->xfocus.window,
 331                  e->xfocus.mode, e->xfocus.detail);
 332 #endif
 333         break;
 334     case FocusOut:
 335         if (INVALID_FOCUSOUT(e)) {
 336 #ifdef DEBUG_FOCUS
 337         ob_debug("FocusOut on %lx mode %d detail %d IGNORED\n",
 338                  e->xfocus.window, e->xfocus.mode, e->xfocus.detail);
 339 #endif
 340             return TRUE;
 341         }
 342
 343 #ifdef DEBUG_FOCUS
 344         ob_debug("FocusOut on %lx mode %d detail %d\n",
 345                  e->xfocus.window, e->xfocus.mode, e->xfocus.detail);
 346 #endif
 347
 348         {
 349             XEvent fe;
 350             gboolean fallback = TRUE;
 351
 352             while (TRUE) {
 353                 if (!XCheckTypedWindowEvent(ob_display, FocusOut,
 354                                             e->xfocus.window,&fe))
 355                     if (!XCheckTypedEvent(ob_display, FocusIn, &fe))
 356                         break;
 357                 if (fe.type == FocusOut) {
 358 #ifdef DEBUG_FOCUS
 359                     ob_debug("found pending FocusOut");
 360 #endif
 361                     if (!INVALID_FOCUSOUT(&fe)) {
 362                         /* if there is a VALID FocusOut still coming, don't
 363                            fallback focus yet, we'll deal with it then */
 364                         XPutBackEvent(ob_display, &fe);
 365                         fallback = FALSE;
 366                         break;
 367                     }
 368                 } else {
 369 #ifdef DEBUG_FOCUS
 370                     ob_debug("found pending FocusIn");
 371 #endif
 372                     /* is the focused window getting a FocusOut/In back to
 373                        itself?
 374                     */
 375                     if (fe.xfocus.window == e->xfocus.window &&
 376                         !event_ignore(&fe, client)) {
 377                         /*
 378                           if focus_client is not set, then we can't do
 379                           this. we need the FocusIn. This happens in the
 380                           case when the set_focus_client(NULL) in the
 381                           focus_fallback function fires and then
 382                           focus_fallback picks the currently focused
 383                           window (such as on a SendToDesktop-esque action.
 384                         */
 385                         if (focus_client) {
 386 #ifdef DEBUG_FOCUS
 387                             ob_debug("focused window got an Out/In back to "
 388                                      "itself IGNORED both");
 389 #endif
 390                             return TRUE;
 391                         } else {
 392                             event_process(&fe);
 393 #ifdef DEBUG_FOCUS
 394                             ob_debug("focused window got an Out/In back to "
 395                                      "itself but focus_client was null "
 396                                      "IGNORED just the Out");
 397 #endif
 398                             return TRUE;
 399                         }
 400                     }
 401
 402                     /* once all the FocusOut's have been dealt with, if there
 403                        is a FocusIn still left and it is valid, then use it */
 404                     event_process(&fe);
 405                     /* secret magic way of event_process telling us that no
 406                        client was found for the FocusIn event. ^_^ */
 407                     if (fe.xfocus.window != None) {
 408                         fallback = FALSE;
 409                         break;
 410                     }
 411                 }
 412             }
 413             if (fallback) {
 414 #ifdef DEBUG_FOCUS
 415                 ob_debug("no valid FocusIn and no FocusOut events found, "
 416                          "falling back");
 417 #endif
 418                 focus_fallback(OB_FOCUS_FALLBACK_NOFOCUS);
 419             }
 420         }
 421         break;
 422     case EnterNotify:
 423     case LeaveNotify:
 424         /* NotifyUngrab occurs when a mouse button is released and the event is
 425            caused, like when lowering a window */
 426         /* NotifyVirtual occurs when ungrabbing the pointer */
 427         if (e->xcrossing.mode == NotifyGrab ||
 428             e->xcrossing.detail == NotifyInferior ||
 429             (e->xcrossing.mode == NotifyUngrab &&
 430              e->xcrossing.detail == NotifyVirtual)) {
 431 #ifdef DEBUG_FOCUS
 432             ob_debug("%sNotify mode %d detail %d on %lx IGNORED",
 433                      (e->type == EnterNotify ? "Enter" : "Leave"),
 434                      e->xcrossing.mode,
 435                      e->xcrossing.detail, client?client->window:0);
 436 #endif
 437             return TRUE;
 438         }
 439 #ifdef DEBUG_FOCUS
 440         ob_debug("%sNotify mode %d detail %d on %lx",
 441                  (e->type == EnterNotify ? "Enter" : "Leave"),
 442                  e->xcrossing.mode,
 443                  e->xcrossing.detail, client?client->window:0);
 444 #endif
 445         break;
 446     }
 447     return FALSE;
 448 }
 449
 450 static void event_process(XEvent *e)
 451 {
 452     Window window;
 453     ObClient *client = NULL;
 454     ObDock *dock = NULL;
 455     ObDockApp *dockapp = NULL;
 456     ObMenu *menu = NULL;
 457     ObWindow *obwin = NULL;
 458
 459     window = event_get_window(e);
 460     if ((obwin = g_hash_table_lookup(window_map, &window))) {
 461         switch (obwin->type) {
 462         case Window_Dock:
 463             dock = WINDOW_AS_DOCK(obwin);
 464             break;
 465         case Window_DockApp:
 466             dockapp = WINDOW_AS_DOCKAPP(obwin);
 467             break;
 468         case Window_Menu:
 469             menu = WINDOW_AS_MENU(obwin);
 470             break;
 471         case Window_Client:
 472             client = WINDOW_AS_CLIENT(obwin);
 473             break;
 474         case Window_Internal:
 475             /* not to be used for events */
 476             g_assert_not_reached();
 477             break;
 478         }
 479     }
 480
 481     event_set_lasttime(e);
 482     event_hack_mods(e);
 483     if (event_ignore(e, client))
 484         return;
 485
 486     /* deal with it in the kernel */
 487     if (client)
 488         event_handle_client(client, e);
 489     else if (dockapp)
 490         event_handle_dockapp(dockapp, e);
 491     else if (dock)
 492         event_handle_dock(dock, e);
 493     else if (window == RootWindow(ob_display, ob_screen))
 494         event_handle_root(e);
 495     else if (e->type == MapRequest)
 496         client_manage(window);
 497     else if (e->type == ConfigureRequest) {
 498         /* unhandled configure requests must be used to configure the
 499            window directly */
 500         XWindowChanges xwc;
 501
 502         xwc.x = e->xconfigurerequest.x;
 503         xwc.y = e->xconfigurerequest.y;
 504         xwc.width = e->xconfigurerequest.width;
 505         xwc.height = e->xconfigurerequest.height;
 506         xwc.border_width = e->xconfigurerequest.border_width;
 507         xwc.sibling = e->xconfigurerequest.above;
 508         xwc.stack_mode = e->xconfigurerequest.detail;
 509
 510         /* we are not to be held responsible if someone sends us an
 511            invalid request! */
 512         xerror_set_ignore(TRUE);
 513         XConfigureWindow(ob_display, window,
 514                          e->xconfigurerequest.value_mask, &xwc);
 515         xerror_set_ignore(FALSE);
 516     }
 517
 518     if (menu_visible)
 519         if (e->type == MotionNotify || e->type == ButtonRelease ||
 520             e->type == ButtonPress ||
 521             e->type == KeyPress || e->type == KeyRelease) {
 522             event_handle_menu(client, e);
 523
 524             return; /* no dispatch! */
 525         }
 526
 527     if (moveresize_in_progress)
 528         if (e->type == MotionNotify || e->type == ButtonRelease ||
 529             e->type == ButtonPress ||
 530             e->type == KeyPress || e->type == KeyRelease) {
 531             moveresize_event(e);
 532
 533             return; /* no dispatch! */
 534
 535         }
 536
 537     /* user input (action-bound) events */
 538     /*
 539     if (e->type == ButtonPress || e->type == ButtonRelease ||
 540         e->type == MotionNotify)
 541         mouse_event(e, client);
 542     else if (e->type == KeyPress || e->type == KeyRelease)
 543         ;
 544     */
 545
 546     /* dispatch the event to registered handlers */
 547     dispatch_x(e, client);
 548 }
 549
 550 static void event_handle_root(XEvent *e)
 551 {
 552     Atom msgtype;
 553
 554     switch(e->type) {
 555     case SelectionClear:
 556         ob_debug("Another WM has requested to replace us. Exiting.\n");
 557         ob_exit();
 558         break;
 559
 560     case ClientMessage:
 561         if (e->xclient.format != 32) break;
 562
 563         msgtype = e->xclient.message_type;
 564         if (msgtype == prop_atoms.net_current_desktop) {
 565             unsigned int d = e->xclient.data.l[0];
 566             if (d < screen_num_desktops)
 567                 screen_set_desktop(d);
 568         } else if (msgtype == prop_atoms.net_number_of_desktops) {
 569             unsigned int d = e->xclient.data.l[0];
 570             if (d > 0)
 571                 screen_set_num_desktops(d);
 572         } else if (msgtype == prop_atoms.net_showing_desktop) {
 573             screen_show_desktop(e->xclient.data.l[0] != 0);
 574         }
 575         break;
 576     case PropertyNotify:
 577         if (e->xproperty.atom == prop_atoms.net_desktop_names)
 578             screen_update_desktop_names();
 579         else if (e->xproperty.atom == prop_atoms.net_desktop_layout)
 580             screen_update_layout();
 581         break;
 582     case ConfigureNotify:
 583 #ifdef XRANDR
 584         XRRUpdateConfiguration(e);
 585 #endif
 586         screen_resize();
 587         break;
 588     default:
 589         ;
 590 #ifdef VIDMODE
 591         if (extensions_vidmode && e->type == extensions_vidmode_event_basep) {
 592             ob_debug("VIDMODE EVENT\n");
 593         }
 594 #endif
 595     }
 596 }
 597
 598 static void event_handle_client(ObClient *client, XEvent *e)
 599 {
 600     XEvent ce;
 601     Atom msgtype;
 602     int i=0;
 603
 604     switch (e->type) {
 605     case ButtonPress:
 606     case ButtonRelease:
 607         /* Wheel buttons don't draw because they are an instant click, so it
 608            is a waste of resources to go drawing it. */
 609         if (!(e->xbutton.button == 4 || e->xbutton.button == 5)) {
 610             switch (frame_context(client, e->xbutton.window)) {
 611             case OB_FRAME_CONTEXT_MAXIMIZE:
 612                 client->frame->max_press = (e->type == ButtonPress);
 613                 framerender_frame(client->frame);
 614                 break;
 615             case OB_FRAME_CONTEXT_CLOSE:
 616                 client->frame->close_press = (e->type == ButtonPress);
 617                 framerender_frame(client->frame);
 618                 break;
 619             case OB_FRAME_CONTEXT_ICONIFY:
 620                 client->frame->iconify_press = (e->type == ButtonPress);
 621                 framerender_frame(client->frame);
 622                 break;
 623             case OB_FRAME_CONTEXT_ALLDESKTOPS:
 624                 client->frame->desk_press = (e->type == ButtonPress);
 625                 framerender_frame(client->frame);
 626                 break;
 627             case OB_FRAME_CONTEXT_SHADE:
 628                 client->frame->shade_press = (e->type == ButtonPress);
 629                 framerender_frame(client->frame);
 630                 break;
 631             default:
 632                 /* nothing changes with clicks for any other contexts */
 633                 break;
 634             }
 635         }
 636         break;
 637     case FocusIn:
 638 #ifdef DEBUG_FOCUS
 639         ob_debug("FocusIn on client for %lx\n", client->window);
 640 #endif
 641         if (client != focus_client) {
 642             focus_set_client(client);
 643             frame_adjust_focus(client->frame, TRUE);
 644         }
 645         break;
 646     case FocusOut:
 647 #ifdef DEBUG_FOCUS
 648         ob_debug("FocusOut on client for %lx\n", client->window);
 649 #endif
 650         /* are we a fullscreen window or a transient of one? (checks layer)
 651            if we are then we need to be iconified since we are losing focus
 652          */
 653         if (client->layer == OB_STACKING_LAYER_FULLSCREEN && !client->iconic &&
 654             !client_search_focus_tree_full(client))
 655             /* iconify fullscreen windows when they and their transients
 656                aren't focused */
 657             client_iconify(client, TRUE, TRUE);
 658         frame_adjust_focus(client->frame, FALSE);
 659         break;
 660     case EnterNotify:
 661         con = frame_context(client, e->xcrossing.subwindow);
 662         if (client_normal(client)) {
 663             if (ob_state() == OB_STATE_STARTING) {
 664                 /* move it to the top of the focus order */
 665                 guint desktop = client->desktop;
 666                 if (desktop == DESKTOP_ALL) desktop = screen_desktop;
 667                 focus_order[desktop] = g_list_remove(focus_order[desktop],
 668                                                      client);
 669                 focus_order[desktop] = g_list_prepend(focus_order[desktop],
 670                                                       client);
 671             } else if (config_focus_follow) {
 672 #ifdef DEBUG_FOCUS
 673                 ob_debug("EnterNotify on %lx, focusing window\n",
 674                          client->window);
 675 #endif
 676                 client_focus(client);
 677             }
 678         }
 679         break;
 680     case ConfigureRequest:
 681         /* compress these */
 682         while (XCheckTypedWindowEvent(ob_display, client->window,
 683                                       ConfigureRequest, &ce)) {
 684             ++i;
 685             /* XXX if this causes bad things.. we can compress config req's
 686                with the same mask. */
 687             e->xconfigurerequest.value_mask |=
 688                 ce.xconfigurerequest.value_mask;
 689             if (ce.xconfigurerequest.value_mask & CWX)
 690                 e->xconfigurerequest.x = ce.xconfigurerequest.x;
 691             if (ce.xconfigurerequest.value_mask & CWY)
 692                 e->xconfigurerequest.y = ce.xconfigurerequest.y;
 693             if (ce.xconfigurerequest.value_mask & CWWidth)
 694                 e->xconfigurerequest.width = ce.xconfigurerequest.width;
 695             if (ce.xconfigurerequest.value_mask & CWHeight)
 696                 e->xconfigurerequest.height = ce.xconfigurerequest.height;
 697             if (ce.xconfigurerequest.value_mask & CWBorderWidth)
 698                 e->xconfigurerequest.border_width =
 699                     ce.xconfigurerequest.border_width;
 700             if (ce.xconfigurerequest.value_mask & CWStackMode)
 701                 e->xconfigurerequest.detail = ce.xconfigurerequest.detail;
 702         }
 703
 704         /* if we are iconic (or shaded (fvwm does this)) ignore the event */
 705         if (client->iconic || client->shaded) return;
 706
 707         if (e->xconfigurerequest.value_mask & CWBorderWidth)
 708             client->border_width = e->xconfigurerequest.border_width;
 709
 710         /* resize, then move, as specified in the EWMH section 7.7 */
 711         if (e->xconfigurerequest.value_mask & (CWWidth | CWHeight |
 712                                                CWX | CWY)) {
 713             int x, y, w, h;
 714             ObCorner corner;
 715             Rect *a;
 716
 717             x = (e->xconfigurerequest.value_mask & CWX) ?
 718                 e->xconfigurerequest.x : client->area.x;
 719             y = (e->xconfigurerequest.value_mask & CWY) ?
 720                 e->xconfigurerequest.y : client->area.y;
 721             w = (e->xconfigurerequest.value_mask & CWWidth) ?
 722                 e->xconfigurerequest.width : client->area.width;
 723             h = (e->xconfigurerequest.value_mask & CWHeight) ?
 724                 e->xconfigurerequest.height : client->area.height;
 725
 726             /* dont let windows move above/left into the strut unless they are
 727                bigger than the available area */
 728             a = screen_area(client->desktop);
 729             if (e->xconfigurerequest.value_mask & CWX &&
 730                 w <= a->width && x < a->x)
 731                 x = a->x;
 732             if (e->xconfigurerequest.value_mask & CWY &&
 733                 h <= a->height && y < a->y)
 734                 y = a->y;
 735
 736             switch (client->gravity) {
 737             case NorthEastGravity:
 738             case EastGravity:
 739                 corner = OB_CORNER_TOPRIGHT;
 740                 break;
 741             case SouthWestGravity:
 742             case SouthGravity:
 743                 corner = OB_CORNER_BOTTOMLEFT;
 744                 break;
 745             case SouthEastGravity:
 746                 corner = OB_CORNER_BOTTOMRIGHT;
 747                 break;
 748             default:     /* NorthWest, Static, etc */
 749                 corner = OB_CORNER_TOPLEFT;
 750             }
 751
 752             client_configure(client, corner, x, y, w, h, FALSE, TRUE);
 753         }
 754
 755         if (e->xconfigurerequest.value_mask & CWStackMode) {
 756             switch (e->xconfigurerequest.detail) {
 757             case Below:
 758             case BottomIf:
 759                 stacking_lower(CLIENT_AS_WINDOW(client));
 760                 break;
 761
 762             case Above:
 763             case TopIf:
 764             default:
 765                 stacking_raise(CLIENT_AS_WINDOW(client));
 766                 break;
 767             }
 768         }
 769         break;
 770     case UnmapNotify:
 771         if (client->ignore_unmaps) {
 772             client->ignore_unmaps--;
 773             break;
 774         }
 775         client_unmanage(client);
 776         break;
 777     case DestroyNotify:
 778         client_unmanage(client);
 779         break;
 780     case ReparentNotify:
 781         /* this is when the client is first taken captive in the frame */
 782         if (e->xreparent.parent == client->frame->plate) break;
 783
 784         /*
 785           This event is quite rare and is usually handled in unmapHandler.
 786           However, if the window is unmapped when the reparent event occurs,
 787           the window manager never sees it because an unmap event is not sent
 788           to an already unmapped window.
 789         */
 790
 791         /* we don't want the reparent event, put it back on the stack for the
 792            X server to deal with after we unmanage the window */
 793         XPutBackEvent(ob_display, e);
 794
 795         client_unmanage(client);
 796         break;
 797     case MapRequest:
 798         ob_debug("MapRequest for 0x%lx\n", client->window);
 799         if (!client->iconic) break; /* this normally doesn't happen, but if it
 800                                        does, we don't want it! */
 801         if (screen_showing_desktop)
 802             screen_show_desktop(FALSE);
 803         client_iconify(client, FALSE, TRUE);
 804         if (!client->frame->visible)
 805             /* if its not visible still, then don't mess with it */
 806             break;
 807         if (client->shaded)
 808             client_shade(client, FALSE);
 809         client_focus(client);
 810         stacking_raise(CLIENT_AS_WINDOW(client));
 811         break;
 812     case ClientMessage:
 813         /* validate cuz we query stuff off the client here */
 814         if (!client_validate(client)) break;
 815
 816         if (e->xclient.format != 32) return;
 817
 818         msgtype = e->xclient.message_type;
 819         if (msgtype == prop_atoms.wm_change_state) {
 820             /* compress changes into a single change */
 821             while (XCheckTypedWindowEvent(ob_display, e->type,
 822                                           client->window, &ce)) {
 823                 /* XXX: it would be nice to compress ALL messages of a
 824                    type, not just messages in a row without other
 825                    message types between. */
 826                 if (ce.xclient.message_type != msgtype) {
 827                     XPutBackEvent(ob_display, &ce);
 828                     break;
 829                 }
 830                 e->xclient = ce.xclient;
 831             }
 832             client_set_wm_state(client, e->xclient.data.l[0]);
 833         } else if (msgtype == prop_atoms.net_wm_desktop) {
 834             /* compress changes into a single change */
 835             while (XCheckTypedWindowEvent(ob_display, e->type,
 836                                           client->window, &ce)) {
 837                 /* XXX: it would be nice to compress ALL messages of a
 838                    type, not just messages in a row without other
 839                    message types between. */
 840                 if (ce.xclient.message_type != msgtype) {
 841                     XPutBackEvent(ob_display, &ce);
 842                     break;
 843                 }
 844                 e->xclient = ce.xclient;
 845             }
 846             if ((unsigned)e->xclient.data.l[0] < screen_num_desktops ||
 847                 (unsigned)e->xclient.data.l[0] == DESKTOP_ALL)
 848                 client_set_desktop(client, (unsigned)e->xclient.data.l[0],
 849                                    FALSE);
 850         } else if (msgtype == prop_atoms.net_wm_state) {
 851             /* can't compress these */
 852             ob_debug("net_wm_state %s %ld %ld for 0x%lx\n",
 853                      (e->xclient.data.l[0] == 0 ? "Remove" :
 854                       e->xclient.data.l[0] == 1 ? "Add" :
 855                       e->xclient.data.l[0] == 2 ? "Toggle" : "INVALID"),
 856                      e->xclient.data.l[1], e->xclient.data.l[2],
 857                      client->window);
 858             client_set_state(client, e->xclient.data.l[0],
 859                              e->xclient.data.l[1], e->xclient.data.l[2]);
 860         } else if (msgtype == prop_atoms.net_close_window) {
 861             ob_debug("net_close_window for 0x%lx\n", client->window);
 862             client_close(client);
 863         } else if (msgtype == prop_atoms.net_active_window) {
 864             ob_debug("net_active_window for 0x%lx\n", client->window);
 865             client_activate(client);
 866         } else if (msgtype == prop_atoms.net_wm_moveresize) {
 867             ob_debug("net_wm_moveresize for 0x%lx\n", client->window);
 868             if ((Atom)e->xclient.data.l[2] ==
 869                 prop_atoms.net_wm_moveresize_size_topleft ||
 870                 (Atom)e->xclient.data.l[2] ==
 871                 prop_atoms.net_wm_moveresize_size_top ||
 872                 (Atom)e->xclient.data.l[2] ==
 873                 prop_atoms.net_wm_moveresize_size_topright ||
 874                 (Atom)e->xclient.data.l[2] ==
 875                 prop_atoms.net_wm_moveresize_size_right ||
 876                 (Atom)e->xclient.data.l[2] ==
 877                 prop_atoms.net_wm_moveresize_size_right ||
 878                 (Atom)e->xclient.data.l[2] ==
 879                 prop_atoms.net_wm_moveresize_size_bottomright ||
 880                 (Atom)e->xclient.data.l[2] ==
 881                 prop_atoms.net_wm_moveresize_size_bottom ||
 882                 (Atom)e->xclient.data.l[2] ==
 883                 prop_atoms.net_wm_moveresize_size_bottomleft ||
 884                 (Atom)e->xclient.data.l[2] ==
 885                 prop_atoms.net_wm_moveresize_size_left ||
 886                 (Atom)e->xclient.data.l[2] ==
 887                 prop_atoms.net_wm_moveresize_move ||
 888                 (Atom)e->xclient.data.l[2] ==
 889                 prop_atoms.net_wm_moveresize_size_keyboard ||
 890                 (Atom)e->xclient.data.l[2] ==
 891                 prop_atoms.net_wm_moveresize_move_keyboard) {
 892
 893                 moveresize_start(client, e->xclient.data.l[0],
 894                                  e->xclient.data.l[1], e->xclient.data.l[3],
 895                                  e->xclient.data.l[2]);
 896             }
 897         } else if (msgtype == prop_atoms.net_moveresize_window) {
 898             int oldg = client->gravity;
 899             int tmpg, x, y, w, h;
 900             Rect *a;
 901
 902             if (e->xclient.data.l[0] & 0xff)
 903                 tmpg = e->xclient.data.l[0] & 0xff;
 904             else
 905                 tmpg = oldg;
 906
 907             if (e->xclient.data.l[0] & 1 << 8)
 908                 x = e->xclient.data.l[1];
 909             else
 910                 x = client->area.x;
 911             if (e->xclient.data.l[0] & 1 << 9)
 912                 y = e->xclient.data.l[2];
 913             else
 914                 y = client->area.y;
 915             if (e->xclient.data.l[0] & 1 << 10)
 916                 w = e->xclient.data.l[3];
 917             else
 918                 w = client->area.y;
 919             if (e->xclient.data.l[0] & 1 << 11)
 920                 h = e->xclient.data.l[4];
 921             else
 922                 h = client->area.y;
 923             client->gravity = tmpg;
 924
 925             /* get the frame position */
 926             frame_client_gravity(client->frame, &x, &y);
 927
 928             /* dont let windows move above/left into the strut unless they are
 929                bigger than the available area */
 930             a = screen_area(client->desktop);
 931             if (e->xconfigurerequest.value_mask & CWX &&
 932                 w <= a->width && x < a->x)
 933                 x = a->x;
 934             if (e->xconfigurerequest.value_mask & CWY &&
 935                 h <= a->height && y < a->y)
 936                 y = a->y;
 937
 938             /* go back to the client position */
 939             frame_frame_gravity(client->frame, &x, &y);
 940
 941             client_configure(client, OB_CORNER_TOPLEFT,
 942                              x, y, w, h, FALSE, TRUE);
 943
 944             client->gravity = oldg;
 945         }
 946         break;
 947     case PropertyNotify:
 948         /* validate cuz we query stuff off the client here */
 949         if (!client_validate(client)) break;
 950
 951         /* compress changes to a single property into a single change */
 952         while (XCheckTypedWindowEvent(ob_display, e->type,
 953                                       client->window, &ce)) {
 954             /* XXX: it would be nice to compress ALL changes to a property,
 955                not just changes in a row without other props between. */
 956             if (ce.xproperty.atom != e->xproperty.atom) {
 957                 XPutBackEvent(ob_display, &ce);
 958                 break;
 959             }
 960         }
 961
 962         msgtype = e->xproperty.atom;
 963         if (msgtype == XA_WM_NORMAL_HINTS) {
 964             client_update_normal_hints(client);
 965             /* normal hints can make a window non-resizable */
 966             client_setup_decor_and_functions(client);
 967         }
 968         else if (msgtype == XA_WM_HINTS)
 969             client_update_wmhints(client);
 970         else if (msgtype == XA_WM_TRANSIENT_FOR) {
 971             client_update_transient_for(client);
 972             client_get_type(client);
 973             /* type may have changed, so update the layer */
 974             client_calc_layer(client);
 975             client_setup_decor_and_functions(client);
 976         }
 977         else if (msgtype == prop_atoms.net_wm_name ||
 978                  msgtype == prop_atoms.wm_name ||
 979                  msgtype == prop_atoms.net_wm_icon_name ||
 980                  msgtype == prop_atoms.wm_icon_name)
 981             client_update_title(client);
 982         else if (msgtype == prop_atoms.wm_class)
 983             client_update_class(client);
 984         else if (msgtype == prop_atoms.wm_protocols) {
 985             client_update_protocols(client);
 986             client_setup_decor_and_functions(client);
 987         }
 988         else if (msgtype == prop_atoms.net_wm_strut)
 989             client_update_strut(client);
 990         else if (msgtype == prop_atoms.net_wm_icon ||
 991                  msgtype == prop_atoms.kwm_win_icon)
 992             client_update_icons(client);
 993     default:
 994         ;
 995 #ifdef SHAPE
 996         if (extensions_shape && e->type == extensions_shape_event_basep) {
 997             client->shaped = ((XShapeEvent*)e)->shaped;
 998             frame_adjust_shape(client->frame);
 999         }
1000 #endif
1001     }
1002 }
1003
1004 static void event_handle_menu(ObClient *client, XEvent *e)
1005 {
1006     ObMenuEntry *entry;
1007     ObMenu *top;
1008     GList *it = NULL;
1009
1010     top = g_list_nth_data(menu_visible, 0);
1011
1012     ob_debug("EVENT %d\n", e->type);
1013     switch (e->type) {
1014     case KeyPress:
1015         menu_control_keyboard_nav(e->xkey.keycode);
1016         break;
1017     case ButtonPress:
1018         ob_debug("BUTTON PRESS\n");
1019
1020         break;
1021     case ButtonRelease:
1022         ob_debug("BUTTON RELEASED\n");
1023
1024         for (it = menu_visible; it; it = g_list_next(it)) {
1025             ObMenu *m = it->data;
1026             if (e->xbutton.x_root >= m->location.x - ob_rr_theme->bwidth &&
1027                 e->xbutton.y_root >= m->location.y - ob_rr_theme->bwidth &&
1028                 e->xbutton.x_root < m->location.x + m->size.width +
1029                 ob_rr_theme->bwidth &&
1030                 e->xbutton.y_root < m->location.y + m->size.height +
1031                 ob_rr_theme->bwidth) {
1032                 if ((entry = menu_find_entry_by_pos(it->data,
1033                                                     e->xbutton.x_root -
1034                                                     m->location.x,
1035                                                     e->xbutton.y_root -
1036                                                     m->location.y))) {
1037                     m->selected(entry, e->xbutton.button,
1038                                 e->xbutton.x_root,
1039                                 e->xbutton.y_root);
1040                     break;
1041                 }
1042                 break;
1043             }
1044         }
1045
1046         /* will call the menu_hide() for each submenu as well */
1047         if (!it)
1048             menu_hide(menu_visible->data);
1049
1050         break;
1051     case MotionNotify:
1052         ob_debug("motion\n");
1053         for (it = menu_visible; it; it = g_list_next(it)) {
1054             ObMenu *m = it->data;
1055             if ((entry = menu_find_entry_by_pos(it->data,
1056                                                 e->xmotion.x_root -
1057                                                 m->location.x,
1058                                                 e->xmotion.y_root -
1059                                                 m->location.y))) {
1060                 if (m->over && m->over->data != entry)
1061                     m->mouseover(m->over->data, FALSE);
1062
1063                 m->mouseover(entry, TRUE);
1064                 break;
1065             }
1066         }
1067
1068         break;
1069     }
1070 }
1071
1072 void event_add_fd_handler(event_fd_handler *h) {
1073     g_datalist_id_set_data(&fd_handler_list, h->fd, h);
1074     FD_SET(h->fd, &allset);
1075     max_fd = MAX(max_fd, h->fd);
1076 }
1077
1078 static void find_max_fd_foreach(GQuark n, gpointer data, gpointer max)
1079 {
1080     *((unsigned int *)max) = MAX(*((unsigned int *)max), n);
1081 }
1082
1083 static void find_max_fd()
1084 {
1085     int tmpmax = -1;
1086     g_datalist_foreach(&fd_handler_list, find_max_fd_foreach,
1087                        (gpointer)&tmpmax);
1088     max_fd = MAX(x_fd, tmpmax);
1089 #ifdef USE_SM
1090     max_fd = MAX(ice_fd, tmpmax);
1091 #endif
1092 }
1093
1094 void event_remove_fd(int n)
1095 {
1096     FD_CLR(n, &allset);
1097     g_datalist_id_remove_data(&fd_handler_list, (GQuark)n);
1098     find_max_fd();
1099 }
1100
1101 static void fd_event_handle_foreach(GQuark n, gpointer data, gpointer user_data)
1102 {
1103     if (FD_ISSET( (int)n, &selset)) {
1104         event_fd_handler *h = (event_fd_handler *)data;
1105         g_assert(h->fd == (int)n);
1106         h->handler(h->fd, h->data);
1107     }
1108 }
1109
1110 static void fd_event_handle()
1111 {
1112     g_datalist_foreach(&fd_handler_list, fd_event_handle_foreach, NULL);
1113 }
1114
1115 static void event_handle_dock(ObDock *s, XEvent *e)
1116 {
1117     switch (e->type) {
1118     case ButtonPress:
1119         stacking_raise(DOCK_AS_WINDOW(s));
1120         break;
1121     case EnterNotify:
1122         dock_hide(FALSE);
1123         break;
1124     case LeaveNotify:
1125         dock_hide(TRUE);
1126         break;
1127     }
1128 }
1129
1130 static void event_handle_dockapp(ObDockApp *app, XEvent *e)
1131 {
1132     switch (e->type) {
1133     case MotionNotify:
1134         dock_app_drag(app, &e->xmotion);
1135         break;
1136     case UnmapNotify:
1137         if (app->ignore_unmaps) {
1138             app->ignore_unmaps--;
1139             break;
1140         }
1141         dock_remove(app, TRUE);
1142         break;
1143     case DestroyNotify:
1144         dock_remove(app, FALSE);
1145         break;
1146     case ReparentNotify:
1147         dock_remove(app, FALSE);
1148         break;
1149     case ConfigureNotify:
1150         dock_app_configure(app, e->xconfigure.width, e->xconfigure.height);
1151         break;
1152     }
1153 }