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 LeaveNotify:
 662         con = frame_context(client, e->xcrossing.window);
 663         switch (con) {
 664         case OB_FRAME_CONTEXT_MAXIMIZE:
 665             client->frame->max_hover = FALSE;
 666             frame_adjust_state(client->frame);
 667             break;
 668         case OB_FRAME_CONTEXT_ALLDESKTOPS:
 669             client->frame->desk_hover = FALSE;
 670             frame_adjust_state(client->frame);
 671             break;
 672         case OB_FRAME_CONTEXT_SHADE:
 673             client->frame->shade_hover = FALSE;
 674             frame_adjust_state(client->frame);
 675             break;
 676         case OB_FRAME_CONTEXT_ICONIFY:
 677             client->frame->iconify_hover = FALSE;
 678             frame_adjust_state(client->frame);
 679             break;
 680         case OB_FRAME_CONTEXT_CLOSE:
 681             client->frame->close_hover = FALSE;
 682             frame_adjust_state(client->frame);
 683             break;
 684         default:
 685             break;
 686         }
 687         break;
 688     case EnterNotify:
 689         con = frame_context(client, e->xcrossing.window);
 690         switch (con) {
 691         case OB_FRAME_CONTEXT_MAXIMIZE:
 692             client->frame->max_hover = TRUE;
 693             frame_adjust_state(client->frame);
 694             break;
 695         case OB_FRAME_CONTEXT_ALLDESKTOPS:
 696             client->frame->desk_hover = TRUE;
 697             frame_adjust_state(client->frame);
 698             break;
 699         case OB_FRAME_CONTEXT_SHADE:
 700             client->frame->shade_hover = TRUE;
 701             frame_adjust_state(client->frame);
 702             break;
 703         case OB_FRAME_CONTEXT_ICONIFY:
 704             client->frame->iconify_hover = TRUE;
 705             frame_adjust_state(client->frame);
 706             break;
 707         case OB_FRAME_CONTEXT_CLOSE:
 708             client->frame->close_hover = TRUE;
 709             frame_adjust_state(client->frame);
 710             break;
 711         case OB_FRAME_CONTEXT_FRAME:
 712             if (client_normal(client)) {
 713                 if (ob_state() == OB_STATE_STARTING) {
 714                     /* move it to the top of the focus order */
 715                     guint desktop = client->desktop;
 716                     if (desktop == DESKTOP_ALL) desktop = screen_desktop;
 717                     focus_order[desktop] = g_list_remove(focus_order[desktop],
 718                                                          client);
 719                     focus_order[desktop] = g_list_prepend(focus_order[desktop],
 720                                                           client);
 721                 } else if (config_focus_follow) {
 722 #ifdef DEBUG_FOCUS
 723                     ob_debug("EnterNotify on %lx, focusing window\n",
 724                              client->window);
 725 #endif
 726                     client_focus(client);
 727                 }
 728             }
 729             break;
 730         default:
 731             break;
 732         }
 733         break;
 734     case ConfigureRequest:
 735         /* compress these */
 736         while (XCheckTypedWindowEvent(ob_display, client->window,
 737                                       ConfigureRequest, &ce)) {
 738             ++i;
 739             /* XXX if this causes bad things.. we can compress config req's
 740                with the same mask. */
 741             e->xconfigurerequest.value_mask |=
 742                 ce.xconfigurerequest.value_mask;
 743             if (ce.xconfigurerequest.value_mask & CWX)
 744                 e->xconfigurerequest.x = ce.xconfigurerequest.x;
 745             if (ce.xconfigurerequest.value_mask & CWY)
 746                 e->xconfigurerequest.y = ce.xconfigurerequest.y;
 747             if (ce.xconfigurerequest.value_mask & CWWidth)
 748                 e->xconfigurerequest.width = ce.xconfigurerequest.width;
 749             if (ce.xconfigurerequest.value_mask & CWHeight)
 750                 e->xconfigurerequest.height = ce.xconfigurerequest.height;
 751             if (ce.xconfigurerequest.value_mask & CWBorderWidth)
 752                 e->xconfigurerequest.border_width =
 753                     ce.xconfigurerequest.border_width;
 754             if (ce.xconfigurerequest.value_mask & CWStackMode)
 755                 e->xconfigurerequest.detail = ce.xconfigurerequest.detail;
 756         }
 757
 758         /* if we are iconic (or shaded (fvwm does this)) ignore the event */
 759         if (client->iconic || client->shaded) return;
 760
 761         if (e->xconfigurerequest.value_mask & CWBorderWidth)
 762             client->border_width = e->xconfigurerequest.border_width;
 763
 764         /* resize, then move, as specified in the EWMH section 7.7 */
 765         if (e->xconfigurerequest.value_mask & (CWWidth | CWHeight |
 766                                                CWX | CWY)) {
 767             int x, y, w, h;
 768             ObCorner corner;
 769
 770             x = (e->xconfigurerequest.value_mask & CWX) ?
 771                 e->xconfigurerequest.x : client->area.x;
 772             y = (e->xconfigurerequest.value_mask & CWY) ?
 773                 e->xconfigurerequest.y : client->area.y;
 774             w = (e->xconfigurerequest.value_mask & CWWidth) ?
 775                 e->xconfigurerequest.width : client->area.width;
 776             h = (e->xconfigurerequest.value_mask & CWHeight) ?
 777                 e->xconfigurerequest.height : client->area.height;
 778
 779             {
 780                 int newx = x;
 781                 int newy = y;
 782                 client_find_onscreen(client, &newx, &newy, w, h, TRUE);
 783                 if (e->xconfigurerequest.value_mask & CWX)
 784                     x = newx;
 785                 if (e->xconfigurerequest.value_mask & CWY)
 786                     y = newy;
 787             }
 788
 789             switch (client->gravity) {
 790             case NorthEastGravity:
 791             case EastGravity:
 792                 corner = OB_CORNER_TOPRIGHT;
 793                 break;
 794             case SouthWestGravity:
 795             case SouthGravity:
 796                 corner = OB_CORNER_BOTTOMLEFT;
 797                 break;
 798             case SouthEastGravity:
 799                 corner = OB_CORNER_BOTTOMRIGHT;
 800                 break;
 801             default:     /* NorthWest, Static, etc */
 802                 corner = OB_CORNER_TOPLEFT;
 803             }
 804
 805             client_configure(client, corner, x, y, w, h, FALSE, TRUE);
 806         }
 807
 808         if (e->xconfigurerequest.value_mask & CWStackMode) {
 809             switch (e->xconfigurerequest.detail) {
 810             case Below:
 811             case BottomIf:
 812                 stacking_lower(CLIENT_AS_WINDOW(client));
 813                 break;
 814
 815             case Above:
 816             case TopIf:
 817             default:
 818                 stacking_raise(CLIENT_AS_WINDOW(client));
 819                 break;
 820             }
 821         }
 822         break;
 823     case UnmapNotify:
 824         if (client->ignore_unmaps) {
 825             client->ignore_unmaps--;
 826             break;
 827         }
 828         client_unmanage(client);
 829         break;
 830     case DestroyNotify:
 831         client_unmanage(client);
 832         break;
 833     case ReparentNotify:
 834         /* this is when the client is first taken captive in the frame */
 835         if (e->xreparent.parent == client->frame->plate) break;
 836
 837         /*
 838           This event is quite rare and is usually handled in unmapHandler.
 839           However, if the window is unmapped when the reparent event occurs,
 840           the window manager never sees it because an unmap event is not sent
 841           to an already unmapped window.
 842         */
 843
 844         /* we don't want the reparent event, put it back on the stack for the
 845            X server to deal with after we unmanage the window */
 846         XPutBackEvent(ob_display, e);
 847
 848         client_unmanage(client);
 849         break;
 850     case MapRequest:
 851         ob_debug("MapRequest for 0x%lx\n", client->window);
 852         if (!client->iconic) break; /* this normally doesn't happen, but if it
 853                                        does, we don't want it! */
 854         if (screen_showing_desktop)
 855             screen_show_desktop(FALSE);
 856         client_iconify(client, FALSE, TRUE);
 857         if (!client->frame->visible)
 858             /* if its not visible still, then don't mess with it */
 859             break;
 860         if (client->shaded)
 861             client_shade(client, FALSE);
 862         client_focus(client);
 863         stacking_raise(CLIENT_AS_WINDOW(client));
 864         break;
 865     case ClientMessage:
 866         /* validate cuz we query stuff off the client here */
 867         if (!client_validate(client)) break;
 868
 869         if (e->xclient.format != 32) return;
 870
 871         msgtype = e->xclient.message_type;
 872         if (msgtype == prop_atoms.wm_change_state) {
 873             /* compress changes into a single change */
 874             while (XCheckTypedWindowEvent(ob_display, e->type,
 875                                           client->window, &ce)) {
 876                 /* XXX: it would be nice to compress ALL messages of a
 877                    type, not just messages in a row without other
 878                    message types between. */
 879                 if (ce.xclient.message_type != msgtype) {
 880                     XPutBackEvent(ob_display, &ce);
 881                     break;
 882                 }
 883                 e->xclient = ce.xclient;
 884             }
 885             client_set_wm_state(client, e->xclient.data.l[0]);
 886         } else if (msgtype == prop_atoms.net_wm_desktop) {
 887             /* compress changes into a single change */
 888             while (XCheckTypedWindowEvent(ob_display, e->type,
 889                                           client->window, &ce)) {
 890                 /* XXX: it would be nice to compress ALL messages of a
 891                    type, not just messages in a row without other
 892                    message types between. */
 893                 if (ce.xclient.message_type != msgtype) {
 894                     XPutBackEvent(ob_display, &ce);
 895                     break;
 896                 }
 897                 e->xclient = ce.xclient;
 898             }
 899             if ((unsigned)e->xclient.data.l[0] < screen_num_desktops ||
 900                 (unsigned)e->xclient.data.l[0] == DESKTOP_ALL)
 901                 client_set_desktop(client, (unsigned)e->xclient.data.l[0],
 902                                    FALSE);
 903         } else if (msgtype == prop_atoms.net_wm_state) {
 904             /* can't compress these */
 905             ob_debug("net_wm_state %s %ld %ld for 0x%lx\n",
 906                      (e->xclient.data.l[0] == 0 ? "Remove" :
 907                       e->xclient.data.l[0] == 1 ? "Add" :
 908                       e->xclient.data.l[0] == 2 ? "Toggle" : "INVALID"),
 909                      e->xclient.data.l[1], e->xclient.data.l[2],
 910                      client->window);
 911             client_set_state(client, e->xclient.data.l[0],
 912                              e->xclient.data.l[1], e->xclient.data.l[2]);
 913         } else if (msgtype == prop_atoms.net_close_window) {
 914             ob_debug("net_close_window for 0x%lx\n", client->window);
 915             client_close(client);
 916         } else if (msgtype == prop_atoms.net_active_window) {
 917             ob_debug("net_active_window for 0x%lx\n", client->window);
 918             client_activate(client);
 919         } else if (msgtype == prop_atoms.net_wm_moveresize) {
 920             ob_debug("net_wm_moveresize for 0x%lx\n", client->window);
 921             if ((Atom)e->xclient.data.l[2] ==
 922                 prop_atoms.net_wm_moveresize_size_topleft ||
 923                 (Atom)e->xclient.data.l[2] ==
 924                 prop_atoms.net_wm_moveresize_size_top ||
 925                 (Atom)e->xclient.data.l[2] ==
 926                 prop_atoms.net_wm_moveresize_size_topright ||
 927                 (Atom)e->xclient.data.l[2] ==
 928                 prop_atoms.net_wm_moveresize_size_right ||
 929                 (Atom)e->xclient.data.l[2] ==
 930                 prop_atoms.net_wm_moveresize_size_right ||
 931                 (Atom)e->xclient.data.l[2] ==
 932                 prop_atoms.net_wm_moveresize_size_bottomright ||
 933                 (Atom)e->xclient.data.l[2] ==
 934                 prop_atoms.net_wm_moveresize_size_bottom ||
 935                 (Atom)e->xclient.data.l[2] ==
 936                 prop_atoms.net_wm_moveresize_size_bottomleft ||
 937                 (Atom)e->xclient.data.l[2] ==
 938                 prop_atoms.net_wm_moveresize_size_left ||
 939                 (Atom)e->xclient.data.l[2] ==
 940                 prop_atoms.net_wm_moveresize_move ||
 941                 (Atom)e->xclient.data.l[2] ==
 942                 prop_atoms.net_wm_moveresize_size_keyboard ||
 943                 (Atom)e->xclient.data.l[2] ==
 944                 prop_atoms.net_wm_moveresize_move_keyboard) {
 945
 946                 moveresize_start(client, e->xclient.data.l[0],
 947                                  e->xclient.data.l[1], e->xclient.data.l[3],
 948                                  e->xclient.data.l[2]);
 949             }
 950         } else if (msgtype == prop_atoms.net_moveresize_window) {
 951             int oldg = client->gravity;
 952             int tmpg, x, y, w, h;
 953
 954             if (e->xclient.data.l[0] & 0xff)
 955                 tmpg = e->xclient.data.l[0] & 0xff;
 956             else
 957                 tmpg = oldg;
 958
 959             if (e->xclient.data.l[0] & 1 << 8)
 960                 x = e->xclient.data.l[1];
 961             else
 962                 x = client->area.x;
 963             if (e->xclient.data.l[0] & 1 << 9)
 964                 y = e->xclient.data.l[2];
 965             else
 966                 y = client->area.y;
 967             if (e->xclient.data.l[0] & 1 << 10)
 968                 w = e->xclient.data.l[3];
 969             else
 970                 w = client->area.y;
 971             if (e->xclient.data.l[0] & 1 << 11)
 972                 h = e->xclient.data.l[4];
 973             else
 974                 h = client->area.y;
 975             client->gravity = tmpg;
 976
 977             {
 978                 int newx = x;
 979                 int newy = y;
 980                 client_find_onscreen(client, &newx, &newy, w, h, TRUE);
 981                 if (e->xclient.data.l[0] & 1 << 8)
 982                     x = newx;
 983                 if (e->xclient.data.l[0] & 1 << 9)
 984                     y = newy;
 985             }
 986
 987             client_configure(client, OB_CORNER_TOPLEFT,
 988                              x, y, w, h, FALSE, TRUE);
 989
 990             client->gravity = oldg;
 991         }
 992         break;
 993     case PropertyNotify:
 994         /* validate cuz we query stuff off the client here */
 995         if (!client_validate(client)) break;
 996
 997         /* compress changes to a single property into a single change */
 998         while (XCheckTypedWindowEvent(ob_display, e->type,
 999                                       client->window, &ce)) {
1000             /* XXX: it would be nice to compress ALL changes to a property,
1001                not just changes in a row without other props between. */
1002             if (ce.xproperty.atom != e->xproperty.atom) {
1003                 XPutBackEvent(ob_display, &ce);
1004                 break;
1005             }
1006         }
1007
1008         msgtype = e->xproperty.atom;
1009         if (msgtype == XA_WM_NORMAL_HINTS) {
1010             client_update_normal_hints(client);
1011             /* normal hints can make a window non-resizable */
1012             client_setup_decor_and_functions(client);
1013         }
1014         else if (msgtype == XA_WM_HINTS)
1015             client_update_wmhints(client);
1016         else if (msgtype == XA_WM_TRANSIENT_FOR) {
1017             client_update_transient_for(client);
1018             client_get_type(client);
1019             /* type may have changed, so update the layer */
1020             client_calc_layer(client);
1021             client_setup_decor_and_functions(client);
1022         }
1023         else if (msgtype == prop_atoms.net_wm_name ||
1024                  msgtype == prop_atoms.wm_name ||
1025                  msgtype == prop_atoms.net_wm_icon_name ||
1026                  msgtype == prop_atoms.wm_icon_name)
1027             client_update_title(client);
1028         else if (msgtype == prop_atoms.wm_class)
1029             client_update_class(client);
1030         else if (msgtype == prop_atoms.wm_protocols) {
1031             client_update_protocols(client);
1032             client_setup_decor_and_functions(client);
1033         }
1034         else if (msgtype == prop_atoms.net_wm_strut)
1035             client_update_strut(client);
1036         else if (msgtype == prop_atoms.net_wm_icon ||
1037                  msgtype == prop_atoms.kwm_win_icon)
1038             client_update_icons(client);
1039     default:
1040         ;
1041 #ifdef SHAPE
1042         if (extensions_shape && e->type == extensions_shape_event_basep) {
1043             client->shaped = ((XShapeEvent*)e)->shaped;
1044             frame_adjust_shape(client->frame);
1045         }
1046 #endif
1047     }
1048 }
1049
1050 static void event_handle_menu(ObClient *client, XEvent *e)
1051 {
1052     ObMenuEntry *entry;
1053     ObMenu *top;
1054     GList *it = NULL;
1055
1056     top = g_list_nth_data(menu_visible, 0);
1057
1058     ob_debug("EVENT %d\n", e->type);
1059     switch (e->type) {
1060     case KeyPress:
1061         menu_control_keyboard_nav(e->xkey.keycode);
1062         break;
1063     case ButtonPress:
1064         ob_debug("BUTTON PRESS\n");
1065
1066         break;
1067     case ButtonRelease:
1068         ob_debug("BUTTON RELEASED\n");
1069
1070         for (it = menu_visible; it; it = g_list_next(it)) {
1071             ObMenu *m = it->data;
1072             if (e->xbutton.x_root >= m->location.x - ob_rr_theme->bwidth &&
1073                 e->xbutton.y_root >= m->location.y - ob_rr_theme->bwidth &&
1074                 e->xbutton.x_root < m->location.x + m->size.width +
1075                 ob_rr_theme->bwidth &&
1076                 e->xbutton.y_root < m->location.y + m->size.height +
1077                 ob_rr_theme->bwidth) {
1078                 if ((entry = menu_find_entry_by_pos(it->data,
1079                                                     e->xbutton.x_root -
1080                                                     m->location.x,
1081                                                     e->xbutton.y_root -
1082                                                     m->location.y))) {
1083                     m->selected(entry, e->xbutton.button,
1084                                 e->xbutton.x_root,
1085                                 e->xbutton.y_root);
1086                     break;
1087                 }
1088                 break;
1089             }
1090         }
1091
1092         /* will call the menu_hide() for each submenu as well */
1093         if (!it)
1094             menu_hide(menu_visible->data);
1095
1096         break;
1097     case MotionNotify:
1098         ob_debug("motion\n");
1099         for (it = menu_visible; it; it = g_list_next(it)) {
1100             ObMenu *m = it->data;
1101             if ((entry = menu_find_entry_by_pos(it->data,
1102                                                 e->xmotion.x_root -
1103                                                 m->location.x,
1104                                                 e->xmotion.y_root -
1105                                                 m->location.y))) {
1106                 if (m->over && m->over->data != entry)
1107                     m->mouseover(m->over->data, FALSE);
1108
1109                 m->mouseover(entry, TRUE);
1110                 break;
1111             }
1112         }
1113
1114         break;
1115     }
1116 }
1117
1118 void event_add_fd_handler(event_fd_handler *h) {
1119     g_datalist_id_set_data(&fd_handler_list, h->fd, h);
1120     FD_SET(h->fd, &allset);
1121     max_fd = MAX(max_fd, h->fd);
1122 }
1123
1124 static void find_max_fd_foreach(GQuark n, gpointer data, gpointer max)
1125 {
1126     *((unsigned int *)max) = MAX(*((unsigned int *)max), n);
1127 }
1128
1129 static void find_max_fd()
1130 {
1131     int tmpmax = -1;
1132     g_datalist_foreach(&fd_handler_list, find_max_fd_foreach,
1133                        (gpointer)&tmpmax);
1134     max_fd = MAX(x_fd, tmpmax);
1135 #ifdef USE_SM
1136     max_fd = MAX(ice_fd, tmpmax);
1137 #endif
1138 }
1139
1140 void event_remove_fd(int n)
1141 {
1142     FD_CLR(n, &allset);
1143     g_datalist_id_remove_data(&fd_handler_list, (GQuark)n);
1144     find_max_fd();
1145 }
1146
1147 static void fd_event_handle_foreach(GQuark n, gpointer data, gpointer user_data)
1148 {
1149     if (FD_ISSET( (int)n, &selset)) {
1150         event_fd_handler *h = (event_fd_handler *)data;
1151         g_assert(h->fd == (int)n);
1152         h->handler(h->fd, h->data);
1153     }
1154 }
1155
1156 static void fd_event_handle()
1157 {
1158     g_datalist_foreach(&fd_handler_list, fd_event_handle_foreach, NULL);
1159 }
1160
1161 static void event_handle_dock(ObDock *s, XEvent *e)
1162 {
1163     switch (e->type) {
1164     case ButtonPress:
1165         stacking_raise(DOCK_AS_WINDOW(s));
1166         break;
1167     case EnterNotify:
1168         dock_hide(FALSE);
1169         break;
1170     case LeaveNotify:
1171         dock_hide(TRUE);
1172         break;
1173     }
1174 }
1175
1176 static void event_handle_dockapp(ObDockApp *app, XEvent *e)
1177 {
1178     switch (e->type) {
1179     case MotionNotify:
1180         dock_app_drag(app, &e->xmotion);
1181         break;
1182     case UnmapNotify:
1183         if (app->ignore_unmaps) {
1184             app->ignore_unmaps--;
1185             break;
1186         }
1187         dock_remove(app, TRUE);
1188         break;
1189     case DestroyNotify:
1190         dock_remove(app, FALSE);
1191         break;
1192     case ReparentNotify:
1193         dock_remove(app, FALSE);
1194         break;
1195     case ConfigureNotify:
1196         dock_app_configure(app, e->xconfigure.width, e->xconfigure.height);
1197         break;
1198     }
1199 }