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             Rect *a;
 729
 730             x = (e->xconfigurerequest.value_mask & CWX) ?
 731                 e->xconfigurerequest.x : client->area.x;
 732             y = (e->xconfigurerequest.value_mask & CWY) ?
 733                 e->xconfigurerequest.y : client->area.y;
 734             w = (e->xconfigurerequest.value_mask & CWWidth) ?
 735                 e->xconfigurerequest.width : client->area.width;
 736             h = (e->xconfigurerequest.value_mask & CWHeight) ?
 737                 e->xconfigurerequest.height : client->area.height;
 738
 739             /* dont let windows move above/left into the strut unless they are
 740                bigger than the available area */
 741             a = screen_area(client->desktop);
 742             if (e->xconfigurerequest.value_mask & CWX &&
 743                 w <= a->width && x < a->x)
 744                 x = a->x;
 745             if (e->xconfigurerequest.value_mask & CWY &&
 746                 h <= a->height && y < a->y)
 747                 y = a->y;
 748
 749             switch (client->gravity) {
 750             case NorthEastGravity:
 751             case EastGravity:
 752                 corner = OB_CORNER_TOPRIGHT;
 753                 break;
 754             case SouthWestGravity:
 755             case SouthGravity:
 756                 corner = OB_CORNER_BOTTOMLEFT;
 757                 break;
 758             case SouthEastGravity:
 759                 corner = OB_CORNER_BOTTOMRIGHT;
 760                 break;
 761             default:     /* NorthWest, Static, etc */
 762                 corner = OB_CORNER_TOPLEFT;
 763             }
 764
 765             client_configure(client, corner, x, y, w, h, FALSE, TRUE);
 766         }
 767
 768         if (e->xconfigurerequest.value_mask & CWStackMode) {
 769             switch (e->xconfigurerequest.detail) {
 770             case Below:
 771             case BottomIf:
 772                 stacking_lower(CLIENT_AS_WINDOW(client));
 773                 break;
 774
 775             case Above:
 776             case TopIf:
 777             default:
 778                 stacking_raise(CLIENT_AS_WINDOW(client));
 779                 break;
 780             }
 781         }
 782         break;
 783     case UnmapNotify:
 784         if (client->ignore_unmaps) {
 785             client->ignore_unmaps--;
 786             break;
 787         }
 788         client_unmanage(client);
 789         break;
 790     case DestroyNotify:
 791         client_unmanage(client);
 792         break;
 793     case ReparentNotify:
 794         /* this is when the client is first taken captive in the frame */
 795         if (e->xreparent.parent == client->frame->plate) break;
 796
 797         /*
 798           This event is quite rare and is usually handled in unmapHandler.
 799           However, if the window is unmapped when the reparent event occurs,
 800           the window manager never sees it because an unmap event is not sent
 801           to an already unmapped window.
 802         */
 803
 804         /* we don't want the reparent event, put it back on the stack for the
 805            X server to deal with after we unmanage the window */
 806         XPutBackEvent(ob_display, e);
 807
 808         client_unmanage(client);
 809         break;
 810     case MapRequest:
 811         ob_debug("MapRequest for 0x%lx\n", client->window);
 812         if (!client->iconic) break; /* this normally doesn't happen, but if it
 813                                        does, we don't want it! */
 814         if (screen_showing_desktop)
 815             screen_show_desktop(FALSE);
 816         client_iconify(client, FALSE, TRUE);
 817         if (!client->frame->visible)
 818             /* if its not visible still, then don't mess with it */
 819             break;
 820         if (client->shaded)
 821             client_shade(client, FALSE);
 822         client_focus(client);
 823         stacking_raise(CLIENT_AS_WINDOW(client));
 824         break;
 825     case ClientMessage:
 826         /* validate cuz we query stuff off the client here */
 827         if (!client_validate(client)) break;
 828
 829         if (e->xclient.format != 32) return;
 830
 831         msgtype = e->xclient.message_type;
 832         if (msgtype == prop_atoms.wm_change_state) {
 833             /* compress changes into a single change */
 834             while (XCheckTypedWindowEvent(ob_display, e->type,
 835                                           client->window, &ce)) {
 836                 /* XXX: it would be nice to compress ALL messages of a
 837                    type, not just messages in a row without other
 838                    message types between. */
 839                 if (ce.xclient.message_type != msgtype) {
 840                     XPutBackEvent(ob_display, &ce);
 841                     break;
 842                 }
 843                 e->xclient = ce.xclient;
 844             }
 845             client_set_wm_state(client, e->xclient.data.l[0]);
 846         } else if (msgtype == prop_atoms.net_wm_desktop) {
 847             /* compress changes into a single change */
 848             while (XCheckTypedWindowEvent(ob_display, e->type,
 849                                           client->window, &ce)) {
 850                 /* XXX: it would be nice to compress ALL messages of a
 851                    type, not just messages in a row without other
 852                    message types between. */
 853                 if (ce.xclient.message_type != msgtype) {
 854                     XPutBackEvent(ob_display, &ce);
 855                     break;
 856                 }
 857                 e->xclient = ce.xclient;
 858             }
 859             if ((unsigned)e->xclient.data.l[0] < screen_num_desktops ||
 860                 (unsigned)e->xclient.data.l[0] == DESKTOP_ALL)
 861                 client_set_desktop(client, (unsigned)e->xclient.data.l[0],
 862                                    FALSE);
 863         } else if (msgtype == prop_atoms.net_wm_state) {
 864             /* can't compress these */
 865             ob_debug("net_wm_state %s %ld %ld for 0x%lx\n",
 866                      (e->xclient.data.l[0] == 0 ? "Remove" :
 867                       e->xclient.data.l[0] == 1 ? "Add" :
 868                       e->xclient.data.l[0] == 2 ? "Toggle" : "INVALID"),
 869                      e->xclient.data.l[1], e->xclient.data.l[2],
 870                      client->window);
 871             client_set_state(client, e->xclient.data.l[0],
 872                              e->xclient.data.l[1], e->xclient.data.l[2]);
 873         } else if (msgtype == prop_atoms.net_close_window) {
 874             ob_debug("net_close_window for 0x%lx\n", client->window);
 875             client_close(client);
 876         } else if (msgtype == prop_atoms.net_active_window) {
 877             ob_debug("net_active_window for 0x%lx\n", client->window);
 878             client_activate(client);
 879         } else if (msgtype == prop_atoms.net_wm_moveresize) {
 880             ob_debug("net_wm_moveresize for 0x%lx\n", client->window);
 881             if ((Atom)e->xclient.data.l[2] ==
 882                 prop_atoms.net_wm_moveresize_size_topleft ||
 883                 (Atom)e->xclient.data.l[2] ==
 884                 prop_atoms.net_wm_moveresize_size_top ||
 885                 (Atom)e->xclient.data.l[2] ==
 886                 prop_atoms.net_wm_moveresize_size_topright ||
 887                 (Atom)e->xclient.data.l[2] ==
 888                 prop_atoms.net_wm_moveresize_size_right ||
 889                 (Atom)e->xclient.data.l[2] ==
 890                 prop_atoms.net_wm_moveresize_size_right ||
 891                 (Atom)e->xclient.data.l[2] ==
 892                 prop_atoms.net_wm_moveresize_size_bottomright ||
 893                 (Atom)e->xclient.data.l[2] ==
 894                 prop_atoms.net_wm_moveresize_size_bottom ||
 895                 (Atom)e->xclient.data.l[2] ==
 896                 prop_atoms.net_wm_moveresize_size_bottomleft ||
 897                 (Atom)e->xclient.data.l[2] ==
 898                 prop_atoms.net_wm_moveresize_size_left ||
 899                 (Atom)e->xclient.data.l[2] ==
 900                 prop_atoms.net_wm_moveresize_move ||
 901                 (Atom)e->xclient.data.l[2] ==
 902                 prop_atoms.net_wm_moveresize_size_keyboard ||
 903                 (Atom)e->xclient.data.l[2] ==
 904                 prop_atoms.net_wm_moveresize_move_keyboard) {
 905
 906                 moveresize_start(client, e->xclient.data.l[0],
 907                                  e->xclient.data.l[1], e->xclient.data.l[3],
 908                                  e->xclient.data.l[2]);
 909             }
 910         } else if (msgtype == prop_atoms.net_moveresize_window) {
 911             int oldg = client->gravity;
 912             int tmpg, x, y, w, h;
 913             Rect *a;
 914
 915             if (e->xclient.data.l[0] & 0xff)
 916                 tmpg = e->xclient.data.l[0] & 0xff;
 917             else
 918                 tmpg = oldg;
 919
 920             if (e->xclient.data.l[0] & 1 << 8)
 921                 x = e->xclient.data.l[1];
 922             else
 923                 x = client->area.x;
 924             if (e->xclient.data.l[0] & 1 << 9)
 925                 y = e->xclient.data.l[2];
 926             else
 927                 y = client->area.y;
 928             if (e->xclient.data.l[0] & 1 << 10)
 929                 w = e->xclient.data.l[3];
 930             else
 931                 w = client->area.y;
 932             if (e->xclient.data.l[0] & 1 << 11)
 933                 h = e->xclient.data.l[4];
 934             else
 935                 h = client->area.y;
 936             client->gravity = tmpg;
 937
 938             /* get the frame position */
 939             frame_client_gravity(client->frame, &x, &y);
 940
 941             /* dont let windows move above/left into the strut unless they are
 942                bigger than the available area */
 943             a = screen_area(client->desktop);
 944             if (e->xconfigurerequest.value_mask & CWX &&
 945                 w <= a->width && x < a->x)
 946                 x = a->x;
 947             if (e->xconfigurerequest.value_mask & CWY &&
 948                 h <= a->height && y < a->y)
 949                 y = a->y;
 950
 951             /* go back to the client position */
 952             frame_frame_gravity(client->frame, &x, &y);
 953
 954             client_configure(client, OB_CORNER_TOPLEFT,
 955                              x, y, w, h, FALSE, TRUE);
 956
 957             client->gravity = oldg;
 958         }
 959         break;
 960     case PropertyNotify:
 961         /* validate cuz we query stuff off the client here */
 962         if (!client_validate(client)) break;
 963
 964         /* compress changes to a single property into a single change */
 965         while (XCheckTypedWindowEvent(ob_display, e->type,
 966                                       client->window, &ce)) {
 967             /* XXX: it would be nice to compress ALL changes to a property,
 968                not just changes in a row without other props between. */
 969             if (ce.xproperty.atom != e->xproperty.atom) {
 970                 XPutBackEvent(ob_display, &ce);
 971                 break;
 972             }
 973         }
 974
 975         msgtype = e->xproperty.atom;
 976         if (msgtype == XA_WM_NORMAL_HINTS) {
 977             client_update_normal_hints(client);
 978             /* normal hints can make a window non-resizable */
 979             client_setup_decor_and_functions(client);
 980         }
 981         else if (msgtype == XA_WM_HINTS)
 982             client_update_wmhints(client);
 983         else if (msgtype == XA_WM_TRANSIENT_FOR) {
 984             client_update_transient_for(client);
 985             client_get_type(client);
 986             /* type may have changed, so update the layer */
 987             client_calc_layer(client);
 988             client_setup_decor_and_functions(client);
 989         }
 990         else if (msgtype == prop_atoms.net_wm_name ||
 991                  msgtype == prop_atoms.wm_name ||
 992                  msgtype == prop_atoms.net_wm_icon_name ||
 993                  msgtype == prop_atoms.wm_icon_name)
 994             client_update_title(client);
 995         else if (msgtype == prop_atoms.wm_class)
 996             client_update_class(client);
 997         else if (msgtype == prop_atoms.wm_protocols) {
 998             client_update_protocols(client);
 999             client_setup_decor_and_functions(client);
1000         }
1001         else if (msgtype == prop_atoms.net_wm_strut)
1002             client_update_strut(client);
1003         else if (msgtype == prop_atoms.net_wm_icon ||
1004                  msgtype == prop_atoms.kwm_win_icon)
1005             client_update_icons(client);
1006     default:
1007         ;
1008 #ifdef SHAPE
1009         if (extensions_shape && e->type == extensions_shape_event_basep) {
1010             client->shaped = ((XShapeEvent*)e)->shaped;
1011             frame_adjust_shape(client->frame);
1012         }
1013 #endif
1014     }
1015 }
1016
1017 static void event_handle_menu(ObClient *client, XEvent *e)
1018 {
1019     ObMenuEntry *entry;
1020     ObMenu *top;
1021     GList *it = NULL;
1022
1023     top = g_list_nth_data(menu_visible, 0);
1024
1025     ob_debug("EVENT %d\n", e->type);
1026     switch (e->type) {
1027     case KeyPress:
1028         menu_control_keyboard_nav(e->xkey.keycode);
1029         break;
1030     case ButtonPress:
1031         ob_debug("BUTTON PRESS\n");
1032
1033         break;
1034     case ButtonRelease:
1035         ob_debug("BUTTON RELEASED\n");
1036
1037         for (it = menu_visible; it; it = g_list_next(it)) {
1038             ObMenu *m = it->data;
1039             if (e->xbutton.x_root >= m->location.x - ob_rr_theme->bwidth &&
1040                 e->xbutton.y_root >= m->location.y - ob_rr_theme->bwidth &&
1041                 e->xbutton.x_root < m->location.x + m->size.width +
1042                 ob_rr_theme->bwidth &&
1043                 e->xbutton.y_root < m->location.y + m->size.height +
1044                 ob_rr_theme->bwidth) {
1045                 if ((entry = menu_find_entry_by_pos(it->data,
1046                                                     e->xbutton.x_root -
1047                                                     m->location.x,
1048                                                     e->xbutton.y_root -
1049                                                     m->location.y))) {
1050                     m->selected(entry, e->xbutton.button,
1051                                 e->xbutton.x_root,
1052                                 e->xbutton.y_root);
1053                     break;
1054                 }
1055                 break;
1056             }
1057         }
1058
1059         /* will call the menu_hide() for each submenu as well */
1060         if (!it)
1061             menu_hide(menu_visible->data);
1062
1063         break;
1064     case MotionNotify:
1065         ob_debug("motion\n");
1066         for (it = menu_visible; it; it = g_list_next(it)) {
1067             ObMenu *m = it->data;
1068             if ((entry = menu_find_entry_by_pos(it->data,
1069                                                 e->xmotion.x_root -
1070                                                 m->location.x,
1071                                                 e->xmotion.y_root -
1072                                                 m->location.y))) {
1073                 if (m->over && m->over->data != entry)
1074                     m->mouseover(m->over->data, FALSE);
1075
1076                 m->mouseover(entry, TRUE);
1077                 break;
1078             }
1079         }
1080
1081         break;
1082     }
1083 }
1084
1085 void event_add_fd_handler(event_fd_handler *h) {
1086     g_datalist_id_set_data(&fd_handler_list, h->fd, h);
1087     FD_SET(h->fd, &allset);
1088     max_fd = MAX(max_fd, h->fd);
1089 }
1090
1091 static void find_max_fd_foreach(GQuark n, gpointer data, gpointer max)
1092 {
1093     *((unsigned int *)max) = MAX(*((unsigned int *)max), n);
1094 }
1095
1096 static void find_max_fd()
1097 {
1098     int tmpmax = -1;
1099     g_datalist_foreach(&fd_handler_list, find_max_fd_foreach,
1100                        (gpointer)&tmpmax);
1101     max_fd = MAX(x_fd, tmpmax);
1102 #ifdef USE_SM
1103     max_fd = MAX(ice_fd, tmpmax);
1104 #endif
1105 }
1106
1107 void event_remove_fd(int n)
1108 {
1109     FD_CLR(n, &allset);
1110     g_datalist_id_remove_data(&fd_handler_list, (GQuark)n);
1111     find_max_fd();
1112 }
1113
1114 static void fd_event_handle_foreach(GQuark n, gpointer data, gpointer user_data)
1115 {
1116     if (FD_ISSET( (int)n, &selset)) {
1117         event_fd_handler *h = (event_fd_handler *)data;
1118         g_assert(h->fd == (int)n);
1119         h->handler(h->fd, h->data);
1120     }
1121 }
1122
1123 static void fd_event_handle()
1124 {
1125     g_datalist_foreach(&fd_handler_list, fd_event_handle_foreach, NULL);
1126 }
1127
1128 static void event_handle_dock(ObDock *s, XEvent *e)
1129 {
1130     switch (e->type) {
1131     case ButtonPress:
1132         stacking_raise(DOCK_AS_WINDOW(s));
1133         break;
1134     case EnterNotify:
1135         dock_hide(FALSE);
1136         break;
1137     case LeaveNotify:
1138         dock_hide(TRUE);
1139         break;
1140     }
1141 }
1142
1143 static void event_handle_dockapp(ObDockApp *app, XEvent *e)
1144 {
1145     switch (e->type) {
1146     case MotionNotify:
1147         dock_app_drag(app, &e->xmotion);
1148         break;
1149     case UnmapNotify:
1150         if (app->ignore_unmaps) {
1151             app->ignore_unmaps--;
1152             break;
1153         }
1154         dock_remove(app, TRUE);
1155         break;
1156     case DestroyNotify:
1157         dock_remove(app, FALSE);
1158         break;
1159     case ReparentNotify:
1160         dock_remove(app, FALSE);
1161         break;
1162     case ConfigureNotify:
1163         dock_app_configure(app, e->xconfigure.width, e->xconfigure.height);
1164         break;
1165     }
1166 }