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     ObFrameContext con;
 604
 605     switch (e->type) {
 606     case ButtonPress:
 607     case ButtonRelease:
 608         /* Wheel buttons don't draw because they are an instant click, so it
 609            is a waste of resources to go drawing it. */
 610         if (!(e->xbutton.button == 4 || e->xbutton.button == 5)) {
 611             switch (frame_context(client, e->xbutton.window)) {
 612             case OB_FRAME_CONTEXT_MAXIMIZE:
 613                 client->frame->max_press = (e->type == ButtonPress);
 614                 framerender_frame(client->frame);
 615                 break;
 616             case OB_FRAME_CONTEXT_CLOSE:
 617                 client->frame->close_press = (e->type == ButtonPress);
 618                 framerender_frame(client->frame);
 619                 break;
 620             case OB_FRAME_CONTEXT_ICONIFY:
 621                 client->frame->iconify_press = (e->type == ButtonPress);
 622                 framerender_frame(client->frame);
 623                 break;
 624             case OB_FRAME_CONTEXT_ALLDESKTOPS:
 625                 client->frame->desk_press = (e->type == ButtonPress);
 626                 framerender_frame(client->frame);
 627                 break;
 628             case OB_FRAME_CONTEXT_SHADE:
 629                 client->frame->shade_press = (e->type == ButtonPress);
 630                 framerender_frame(client->frame);
 631                 break;
 632             default:
 633                 /* nothing changes with clicks for any other contexts */
 634                 break;
 635             }
 636         }
 637         break;
 638     case FocusIn:
 639 #ifdef DEBUG_FOCUS
 640         ob_debug("FocusIn on client for %lx\n", client->window);
 641 #endif
 642         if (client != focus_client) {
 643             focus_set_client(client);
 644             frame_adjust_focus(client->frame, TRUE);
 645         }
 646         break;
 647     case FocusOut:
 648 #ifdef DEBUG_FOCUS
 649         ob_debug("FocusOut on client for %lx\n", client->window);
 650 #endif
 651         /* are we a fullscreen window or a transient of one? (checks layer)
 652            if we are then we need to be iconified since we are losing focus
 653          */
 654         if (client->layer == OB_STACKING_LAYER_FULLSCREEN && !client->iconic &&
 655             !client_search_focus_tree_full(client))
 656             /* iconify fullscreen windows when they and their transients
 657                aren't focused */
 658             client_iconify(client, TRUE, TRUE);
 659         frame_adjust_focus(client->frame, FALSE);
 660         break;
 661     case EnterNotify:
 662         switch (con) {
 663         case OB_FRAME_CONTEXT_MAXIMIZE:
 664         case OB_FRAME_CONTEXT_ALLDESKTOPS:
 665         case OB_FRAME_CONTEXT_SHADE:
 666         case OB_FRAME_CONTEXT_ICONIFY:
 667         case OB_FRAME_CONTEXT_CLOSE:
 668             g_message("hi");
 669             frame_adjust_state(client->frame);
 670             break;
 671         default:
 672             break;
 673         }
 674         con = frame_context(client, e->xcrossing.subwindow);
 675         if (client_normal(client)) {
 676             if (ob_state() == OB_STATE_STARTING) {
 677                 /* move it to the top of the focus order */
 678                 guint desktop = client->desktop;
 679                 if (desktop == DESKTOP_ALL) desktop = screen_desktop;
 680                 focus_order[desktop] = g_list_remove(focus_order[desktop],
 681                                                      client);
 682                 focus_order[desktop] = g_list_prepend(focus_order[desktop],
 683                                                       client);
 684             } else if (config_focus_follow) {
 685 #ifdef DEBUG_FOCUS
 686                 ob_debug("EnterNotify on %lx, focusing window\n",
 687                          client->window);
 688 #endif
 689                 client_focus(client);
 690             }
 691         }
 692         break;
 693     case ConfigureRequest:
 694         /* compress these */
 695         while (XCheckTypedWindowEvent(ob_display, client->window,
 696                                       ConfigureRequest, &ce)) {
 697             ++i;
 698             /* XXX if this causes bad things.. we can compress config req's
 699                with the same mask. */
 700             e->xconfigurerequest.value_mask |=
 701                 ce.xconfigurerequest.value_mask;
 702             if (ce.xconfigurerequest.value_mask & CWX)
 703                 e->xconfigurerequest.x = ce.xconfigurerequest.x;
 704             if (ce.xconfigurerequest.value_mask & CWY)
 705                 e->xconfigurerequest.y = ce.xconfigurerequest.y;
 706             if (ce.xconfigurerequest.value_mask & CWWidth)
 707                 e->xconfigurerequest.width = ce.xconfigurerequest.width;
 708             if (ce.xconfigurerequest.value_mask & CWHeight)
 709                 e->xconfigurerequest.height = ce.xconfigurerequest.height;
 710             if (ce.xconfigurerequest.value_mask & CWBorderWidth)
 711                 e->xconfigurerequest.border_width =
 712                     ce.xconfigurerequest.border_width;
 713             if (ce.xconfigurerequest.value_mask & CWStackMode)
 714                 e->xconfigurerequest.detail = ce.xconfigurerequest.detail;
 715         }
 716
 717         /* if we are iconic (or shaded (fvwm does this)) ignore the event */
 718         if (client->iconic || client->shaded) return;
 719
 720         if (e->xconfigurerequest.value_mask & CWBorderWidth)
 721             client->border_width = e->xconfigurerequest.border_width;
 722
 723         /* resize, then move, as specified in the EWMH section 7.7 */
 724         if (e->xconfigurerequest.value_mask & (CWWidth | CWHeight |
 725                                                CWX | CWY)) {
 726             int x, y, w, h;
 727             ObCorner corner;
 728
 729             x = (e->xconfigurerequest.value_mask & CWX) ?
 730                 e->xconfigurerequest.x : client->area.x;
 731             y = (e->xconfigurerequest.value_mask & CWY) ?
 732                 e->xconfigurerequest.y : client->area.y;
 733             w = (e->xconfigurerequest.value_mask & CWWidth) ?
 734                 e->xconfigurerequest.width : client->area.width;
 735             h = (e->xconfigurerequest.value_mask & CWHeight) ?
 736                 e->xconfigurerequest.height : client->area.height;
 737
 738             {
 739                 int newx = x;
 740                 int newy = y;
 741                 client_find_onscreen(client, &newx, &newy, w, h, TRUE);
 742                 if (e->xconfigurerequest.value_mask & CWX)
 743                     x = newx;
 744                 if (e->xconfigurerequest.value_mask & CWY)
 745                     y = newy;
 746             }
 747
 748             switch (client->gravity) {
 749             case NorthEastGravity:
 750             case EastGravity:
 751                 corner = OB_CORNER_TOPRIGHT;
 752                 break;
 753             case SouthWestGravity:
 754             case SouthGravity:
 755                 corner = OB_CORNER_BOTTOMLEFT;
 756                 break;
 757             case SouthEastGravity:
 758                 corner = OB_CORNER_BOTTOMRIGHT;
 759                 break;
 760             default:     /* NorthWest, Static, etc */
 761                 corner = OB_CORNER_TOPLEFT;
 762             }
 763
 764             client_configure(client, corner, x, y, w, h, FALSE, TRUE);
 765         }
 766
 767         if (e->xconfigurerequest.value_mask & CWStackMode) {
 768             switch (e->xconfigurerequest.detail) {
 769             case Below:
 770             case BottomIf:
 771                 stacking_lower(CLIENT_AS_WINDOW(client));
 772                 break;
 773
 774             case Above:
 775             case TopIf:
 776             default:
 777                 stacking_raise(CLIENT_AS_WINDOW(client));
 778                 break;
 779             }
 780         }
 781         break;
 782     case UnmapNotify:
 783         if (client->ignore_unmaps) {
 784             client->ignore_unmaps--;
 785             break;
 786         }
 787         client_unmanage(client);
 788         break;
 789     case DestroyNotify:
 790         client_unmanage(client);
 791         break;
 792     case ReparentNotify:
 793         /* this is when the client is first taken captive in the frame */
 794         if (e->xreparent.parent == client->frame->plate) break;
 795
 796         /*
 797           This event is quite rare and is usually handled in unmapHandler.
 798           However, if the window is unmapped when the reparent event occurs,
 799           the window manager never sees it because an unmap event is not sent
 800           to an already unmapped window.
 801         */
 802
 803         /* we don't want the reparent event, put it back on the stack for the
 804            X server to deal with after we unmanage the window */
 805         XPutBackEvent(ob_display, e);
 806
 807         client_unmanage(client);
 808         break;
 809     case MapRequest:
 810         ob_debug("MapRequest for 0x%lx\n", client->window);
 811         if (!client->iconic) break; /* this normally doesn't happen, but if it
 812                                        does, we don't want it! */
 813         if (screen_showing_desktop)
 814             screen_show_desktop(FALSE);
 815         client_iconify(client, FALSE, TRUE);
 816         if (!client->frame->visible)
 817             /* if its not visible still, then don't mess with it */
 818             break;
 819         if (client->shaded)
 820             client_shade(client, FALSE);
 821         client_focus(client);
 822         stacking_raise(CLIENT_AS_WINDOW(client));
 823         break;
 824     case ClientMessage:
 825         /* validate cuz we query stuff off the client here */
 826         if (!client_validate(client)) break;
 827
 828         if (e->xclient.format != 32) return;
 829
 830         msgtype = e->xclient.message_type;
 831         if (msgtype == prop_atoms.wm_change_state) {
 832             /* compress changes into a single change */
 833             while (XCheckTypedWindowEvent(ob_display, e->type,
 834                                           client->window, &ce)) {
 835                 /* XXX: it would be nice to compress ALL messages of a
 836                    type, not just messages in a row without other
 837                    message types between. */
 838                 if (ce.xclient.message_type != msgtype) {
 839                     XPutBackEvent(ob_display, &ce);
 840                     break;
 841                 }
 842                 e->xclient = ce.xclient;
 843             }
 844             client_set_wm_state(client, e->xclient.data.l[0]);
 845         } else if (msgtype == prop_atoms.net_wm_desktop) {
 846             /* compress changes into a single change */
 847             while (XCheckTypedWindowEvent(ob_display, e->type,
 848                                           client->window, &ce)) {
 849                 /* XXX: it would be nice to compress ALL messages of a
 850                    type, not just messages in a row without other
 851                    message types between. */
 852                 if (ce.xclient.message_type != msgtype) {
 853                     XPutBackEvent(ob_display, &ce);
 854                     break;
 855                 }
 856                 e->xclient = ce.xclient;
 857             }
 858             if ((unsigned)e->xclient.data.l[0] < screen_num_desktops ||
 859                 (unsigned)e->xclient.data.l[0] == DESKTOP_ALL)
 860                 client_set_desktop(client, (unsigned)e->xclient.data.l[0],
 861                                    FALSE);
 862         } else if (msgtype == prop_atoms.net_wm_state) {
 863             /* can't compress these */
 864             ob_debug("net_wm_state %s %ld %ld for 0x%lx\n",
 865                      (e->xclient.data.l[0] == 0 ? "Remove" :
 866                       e->xclient.data.l[0] == 1 ? "Add" :
 867                       e->xclient.data.l[0] == 2 ? "Toggle" : "INVALID"),
 868                      e->xclient.data.l[1], e->xclient.data.l[2],
 869                      client->window);
 870             client_set_state(client, e->xclient.data.l[0],
 871                              e->xclient.data.l[1], e->xclient.data.l[2]);
 872         } else if (msgtype == prop_atoms.net_close_window) {
 873             ob_debug("net_close_window for 0x%lx\n", client->window);
 874             client_close(client);
 875         } else if (msgtype == prop_atoms.net_active_window) {
 876             ob_debug("net_active_window for 0x%lx\n", client->window);
 877             client_activate(client);
 878         } else if (msgtype == prop_atoms.net_wm_moveresize) {
 879             ob_debug("net_wm_moveresize for 0x%lx\n", client->window);
 880             if ((Atom)e->xclient.data.l[2] ==
 881                 prop_atoms.net_wm_moveresize_size_topleft ||
 882                 (Atom)e->xclient.data.l[2] ==
 883                 prop_atoms.net_wm_moveresize_size_top ||
 884                 (Atom)e->xclient.data.l[2] ==
 885                 prop_atoms.net_wm_moveresize_size_topright ||
 886                 (Atom)e->xclient.data.l[2] ==
 887                 prop_atoms.net_wm_moveresize_size_right ||
 888                 (Atom)e->xclient.data.l[2] ==
 889                 prop_atoms.net_wm_moveresize_size_right ||
 890                 (Atom)e->xclient.data.l[2] ==
 891                 prop_atoms.net_wm_moveresize_size_bottomright ||
 892                 (Atom)e->xclient.data.l[2] ==
 893                 prop_atoms.net_wm_moveresize_size_bottom ||
 894                 (Atom)e->xclient.data.l[2] ==
 895                 prop_atoms.net_wm_moveresize_size_bottomleft ||
 896                 (Atom)e->xclient.data.l[2] ==
 897                 prop_atoms.net_wm_moveresize_size_left ||
 898                 (Atom)e->xclient.data.l[2] ==
 899                 prop_atoms.net_wm_moveresize_move ||
 900                 (Atom)e->xclient.data.l[2] ==
 901                 prop_atoms.net_wm_moveresize_size_keyboard ||
 902                 (Atom)e->xclient.data.l[2] ==
 903                 prop_atoms.net_wm_moveresize_move_keyboard) {
 904
 905                 moveresize_start(client, e->xclient.data.l[0],
 906                                  e->xclient.data.l[1], e->xclient.data.l[3],
 907                                  e->xclient.data.l[2]);
 908             }
 909         } else if (msgtype == prop_atoms.net_moveresize_window) {
 910             int oldg = client->gravity;
 911             int tmpg, x, y, w, h;
 912
 913             if (e->xclient.data.l[0] & 0xff)
 914                 tmpg = e->xclient.data.l[0] & 0xff;
 915             else
 916                 tmpg = oldg;
 917
 918             if (e->xclient.data.l[0] & 1 << 8)
 919                 x = e->xclient.data.l[1];
 920             else
 921                 x = client->area.x;
 922             if (e->xclient.data.l[0] & 1 << 9)
 923                 y = e->xclient.data.l[2];
 924             else
 925                 y = client->area.y;
 926             if (e->xclient.data.l[0] & 1 << 10)
 927                 w = e->xclient.data.l[3];
 928             else
 929                 w = client->area.y;
 930             if (e->xclient.data.l[0] & 1 << 11)
 931                 h = e->xclient.data.l[4];
 932             else
 933                 h = client->area.y;
 934             client->gravity = tmpg;
 935
 936             {
 937                 int newx = x;
 938                 int newy = y;
 939                 client_find_onscreen(client, &newx, &newy, w, h, TRUE);
 940                 if (e->xclient.data.l[0] & 1 << 8)
 941                     x = newx;
 942                 if (e->xclient.data.l[0] & 1 << 9)
 943                     y = newy;
 944             }
 945
 946             client_configure(client, OB_CORNER_TOPLEFT,
 947                              x, y, w, h, FALSE, TRUE);
 948
 949             client->gravity = oldg;
 950         }
 951         break;
 952     case PropertyNotify:
 953         /* validate cuz we query stuff off the client here */
 954         if (!client_validate(client)) break;
 955
 956         /* compress changes to a single property into a single change */
 957         while (XCheckTypedWindowEvent(ob_display, e->type,
 958                                       client->window, &ce)) {
 959             /* XXX: it would be nice to compress ALL changes to a property,
 960                not just changes in a row without other props between. */
 961             if (ce.xproperty.atom != e->xproperty.atom) {
 962                 XPutBackEvent(ob_display, &ce);
 963                 break;
 964             }
 965         }
 966
 967         msgtype = e->xproperty.atom;
 968         if (msgtype == XA_WM_NORMAL_HINTS) {
 969             client_update_normal_hints(client);
 970             /* normal hints can make a window non-resizable */
 971             client_setup_decor_and_functions(client);
 972         }
 973         else if (msgtype == XA_WM_HINTS)
 974             client_update_wmhints(client);
 975         else if (msgtype == XA_WM_TRANSIENT_FOR) {
 976             client_update_transient_for(client);
 977             client_get_type(client);
 978             /* type may have changed, so update the layer */
 979             client_calc_layer(client);
 980             client_setup_decor_and_functions(client);
 981         }
 982         else if (msgtype == prop_atoms.net_wm_name ||
 983                  msgtype == prop_atoms.wm_name ||
 984                  msgtype == prop_atoms.net_wm_icon_name ||
 985                  msgtype == prop_atoms.wm_icon_name)
 986             client_update_title(client);
 987         else if (msgtype == prop_atoms.wm_class)
 988             client_update_class(client);
 989         else if (msgtype == prop_atoms.wm_protocols) {
 990             client_update_protocols(client);
 991             client_setup_decor_and_functions(client);
 992         }
 993         else if (msgtype == prop_atoms.net_wm_strut)
 994             client_update_strut(client);
 995         else if (msgtype == prop_atoms.net_wm_icon ||
 996                  msgtype == prop_atoms.kwm_win_icon)
 997             client_update_icons(client);
 998     default:
 999         ;
1000 #ifdef SHAPE
1001         if (extensions_shape && e->type == extensions_shape_event_basep) {
1002             client->shaped = ((XShapeEvent*)e)->shaped;
1003             frame_adjust_shape(client->frame);
1004         }
1005 #endif
1006     }
1007 }
1008
1009 static void event_handle_menu(ObClient *client, XEvent *e)
1010 {
1011     ObMenuEntry *entry;
1012     ObMenu *top;
1013     GList *it = NULL;
1014
1015     top = g_list_nth_data(menu_visible, 0);
1016
1017     ob_debug("EVENT %d\n", e->type);
1018     switch (e->type) {
1019     case KeyPress:
1020         menu_control_keyboard_nav(e->xkey.keycode);
1021         break;
1022     case ButtonPress:
1023         ob_debug("BUTTON PRESS\n");
1024
1025         break;
1026     case ButtonRelease:
1027         ob_debug("BUTTON RELEASED\n");
1028
1029         for (it = menu_visible; it; it = g_list_next(it)) {
1030             ObMenu *m = it->data;
1031             if (e->xbutton.x_root >= m->location.x - ob_rr_theme->bwidth &&
1032                 e->xbutton.y_root >= m->location.y - ob_rr_theme->bwidth &&
1033                 e->xbutton.x_root < m->location.x + m->size.width +
1034                 ob_rr_theme->bwidth &&
1035                 e->xbutton.y_root < m->location.y + m->size.height +
1036                 ob_rr_theme->bwidth) {
1037                 if ((entry = menu_find_entry_by_pos(it->data,
1038                                                     e->xbutton.x_root -
1039                                                     m->location.x,
1040                                                     e->xbutton.y_root -
1041                                                     m->location.y))) {
1042                     m->selected(entry, e->xbutton.button,
1043                                 e->xbutton.x_root,
1044                                 e->xbutton.y_root);
1045                     break;
1046                 }
1047                 break;
1048             }
1049         }
1050
1051         /* will call the menu_hide() for each submenu as well */
1052         if (!it)
1053             menu_hide(menu_visible->data);
1054
1055         break;
1056     case MotionNotify:
1057         ob_debug("motion\n");
1058         for (it = menu_visible; it; it = g_list_next(it)) {
1059             ObMenu *m = it->data;
1060             if ((entry = menu_find_entry_by_pos(it->data,
1061                                                 e->xmotion.x_root -
1062                                                 m->location.x,
1063                                                 e->xmotion.y_root -
1064                                                 m->location.y))) {
1065                 if (m->over && m->over->data != entry)
1066                     m->mouseover(m->over->data, FALSE);
1067
1068                 m->mouseover(entry, TRUE);
1069                 break;
1070             }
1071         }
1072
1073         break;
1074     }
1075 }
1076
1077 void event_add_fd_handler(event_fd_handler *h) {
1078     g_datalist_id_set_data(&fd_handler_list, h->fd, h);
1079     FD_SET(h->fd, &allset);
1080     max_fd = MAX(max_fd, h->fd);
1081 }
1082
1083 static void find_max_fd_foreach(GQuark n, gpointer data, gpointer max)
1084 {
1085     *((unsigned int *)max) = MAX(*((unsigned int *)max), n);
1086 }
1087
1088 static void find_max_fd()
1089 {
1090     int tmpmax = -1;
1091     g_datalist_foreach(&fd_handler_list, find_max_fd_foreach,
1092                        (gpointer)&tmpmax);
1093     max_fd = MAX(x_fd, tmpmax);
1094 #ifdef USE_SM
1095     max_fd = MAX(ice_fd, tmpmax);
1096 #endif
1097 }
1098
1099 void event_remove_fd(int n)
1100 {
1101     FD_CLR(n, &allset);
1102     g_datalist_id_remove_data(&fd_handler_list, (GQuark)n);
1103     find_max_fd();
1104 }
1105
1106 static void fd_event_handle_foreach(GQuark n, gpointer data, gpointer user_data)
1107 {
1108     if (FD_ISSET( (int)n, &selset)) {
1109         event_fd_handler *h = (event_fd_handler *)data;
1110         g_assert(h->fd == (int)n);
1111         h->handler(h->fd, h->data);
1112     }
1113 }
1114
1115 static void fd_event_handle()
1116 {
1117     g_datalist_foreach(&fd_handler_list, fd_event_handle_foreach, NULL);
1118 }
1119
1120 static void event_handle_dock(ObDock *s, XEvent *e)
1121 {
1122     switch (e->type) {
1123     case ButtonPress:
1124         stacking_raise(DOCK_AS_WINDOW(s));
1125         break;
1126     case EnterNotify:
1127         dock_hide(FALSE);
1128         break;
1129     case LeaveNotify:
1130         dock_hide(TRUE);
1131         break;
1132     }
1133 }
1134
1135 static void event_handle_dockapp(ObDockApp *app, XEvent *e)
1136 {
1137     switch (e->type) {
1138     case MotionNotify:
1139         dock_app_drag(app, &e->xmotion);
1140         break;
1141     case UnmapNotify:
1142         if (app->ignore_unmaps) {
1143             app->ignore_unmaps--;
1144             break;
1145         }
1146         dock_remove(app, TRUE);
1147         break;
1148     case DestroyNotify:
1149         dock_remove(app, FALSE);
1150         break;
1151     case ReparentNotify:
1152         dock_remove(app, FALSE);
1153         break;
1154     case ConfigureNotify:
1155         dock_app_configure(app, e->xconfigure.width, e->xconfigure.height);
1156         break;
1157     }
1158 }