openbox/client.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    client.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "client.h"
  21 #include "debug.h"
  22 #include "startupnotify.h"
  23 #include "dock.h"
  24 #include "xerror.h"
  25 #include "screen.h"
  26 #include "moveresize.h"
  27 #include "place.h"
  28 #include "prop.h"
  29 #include "extensions.h"
  30 #include "frame.h"
  31 #include "session.h"
  32 #include "event.h"
  33 #include "grab.h"
  34 #include "focus.h"
  35 #include "propwin.h"
  36 #include "stacking.h"
  37 #include "openbox.h"
  38 #include "group.h"
  39 #include "config.h"
  40 #include "menuframe.h"
  41 #include "keyboard.h"
  42 #include "mouse.h"
  43 #include "render/render.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 #endif
  48
  49 #include <glib.h>
  50 #include <X11/Xutil.h>
  51
  52 /*! The event mask to grab on client windows */
  53 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  54                           ColormapChangeMask)
  55
  56 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  57                                 ButtonMotionMask)
  58
  59 typedef struct
  60 {
  61     ObClientCallback func;
  62     gpointer data;
  63 } ClientCallback;
  64
  65 GList            *client_list          = NULL;
  66
  67 static GSList *client_destroy_notifies = NULL;
  68
  69 static void client_get_all(ObClient *self, gboolean real);
  70 static void client_get_startup_id(ObClient *self);
  71 static void client_get_session_ids(ObClient *self);
  72 static void client_get_area(ObClient *self);
  73 static void client_get_desktop(ObClient *self);
  74 static void client_get_state(ObClient *self);
  75 static void client_get_shaped(ObClient *self);
  76 static void client_get_mwm_hints(ObClient *self);
  77 static void client_get_colormap(ObClient *self);
  78 static void client_change_allowed_actions(ObClient *self);
  79 static void client_change_state(ObClient *self);
  80 static void client_change_wm_state(ObClient *self);
  81 static void client_apply_startup_state(ObClient *self);
  82 static void client_restore_session_state(ObClient *self);
  83 static gboolean client_restore_session_stacking(ObClient *self);
  84 static ObAppSettings *client_get_settings_state(ObClient *self);
  85 static void client_update_transient_tree(ObClient *self,
  86                                          ObGroup *oldgroup, ObGroup *newgroup,
  87                                          ObClient* oldparent,
  88                                          ObClient *newparent);
  89 static void client_present(ObClient *self, gboolean here, gboolean raise);
  90 static GSList *client_search_all_top_parents_internal(ObClient *self,
  91                                                       gboolean bylayer,
  92                                                       ObStackingLayer layer);
  93 static void client_call_notifies(ObClient *self, GSList *list);
  94
  95 void client_startup(gboolean reconfig)
  96 {
  97     if (reconfig) return;
  98
  99     client_set_list();
 100 }
 101
 102 void client_shutdown(gboolean reconfig)
 103 {
 104     if (reconfig) return;
 105 }
 106
 107 static void client_call_notifies(ObClient *self, GSList *list)
 108 {
 109     GSList *it;
 110
 111     for (it = list; it; it = g_slist_next(it)) {
 112         ClientCallback *d = it->data;
 113         d->func(self, d->data);
 114     }
 115 }
 116
 117 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 118 {
 119     ClientCallback *d = g_new(ClientCallback, 1);
 120     d->func = func;
 121     d->data = data;
 122     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 123 }
 124
 125 void client_remove_destroy_notify(ObClientCallback func)
 126 {
 127     GSList *it;
 128
 129     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 130         ClientCallback *d = it->data;
 131         if (d->func == func) {
 132             g_free(d);
 133             client_destroy_notifies =
 134                 g_slist_delete_link(client_destroy_notifies, it);
 135             break;
 136         }
 137     }
 138 }
 139
 140 void client_set_list()
 141 {
 142     Window *windows, *win_it;
 143     GList *it;
 144     guint size = g_list_length(client_list);
 145
 146     /* create an array of the window ids */
 147     if (size > 0) {
 148         windows = g_new(Window, size);
 149         win_it = windows;
 150         for (it = client_list; it; it = g_list_next(it), ++win_it)
 151             *win_it = ((ObClient*)it->data)->window;
 152     } else
 153         windows = NULL;
 154
 155     PROP_SETA32(RootWindow(ob_display, ob_screen),
 156                 net_client_list, window, (gulong*)windows, size);
 157
 158     if (windows)
 159         g_free(windows);
 160
 161     stacking_set_list();
 162 }
 163
 164 /*
 165   void client_foreach_transient(ObClient *self, ObClientForeachFunc func, gpointer data)
 166   {
 167   GSList *it;
 168
 169   for (it = self->transients; it; it = g_slist_next(it)) {
 170   if (!func(it->data, data)) return;
 171   client_foreach_transient(it->data, func, data);
 172   }
 173   }
 174
 175   void client_foreach_ancestor(ObClient *self, ObClientForeachFunc func, gpointer data)
 176   {
 177   if (self->transient_for) {
 178   if (self->transient_for != OB_TRAN_GROUP) {
 179   if (!func(self->transient_for, data)) return;
 180   client_foreach_ancestor(self->transient_for, func, data);
 181   } else {
 182   GSList *it;
 183
 184   for (it = self->group->members; it; it = g_slist_next(it))
 185   if (it->data != self &&
 186   !((ObClient*)it->data)->transient_for) {
 187   if (!func(it->data, data)) return;
 188   client_foreach_ancestor(it->data, func, data);
 189   }
 190   }
 191   }
 192   }
 193 */
 194
 195 void client_manage_all()
 196 {
 197     guint i, j, nchild;
 198     Window w, *children;
 199     XWMHints *wmhints;
 200     XWindowAttributes attrib;
 201
 202     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 203                &w, &w, &children, &nchild);
 204
 205     /* remove all icon windows from the list */
 206     for (i = 0; i < nchild; i++) {
 207         if (children[i] == None) continue;
 208         wmhints = XGetWMHints(ob_display, children[i]);
 209         if (wmhints) {
 210             if ((wmhints->flags & IconWindowHint) &&
 211                 (wmhints->icon_window != children[i]))
 212                 for (j = 0; j < nchild; j++)
 213                     if (children[j] == wmhints->icon_window) {
 214                         children[j] = None;
 215                         break;
 216                     }
 217             XFree(wmhints);
 218         }
 219     }
 220
 221     for (i = 0; i < nchild; ++i) {
 222         if (children[i] == None)
 223             continue;
 224         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 225             if (attrib.override_redirect) continue;
 226
 227             if (attrib.map_state != IsUnmapped)
 228                 client_manage(children[i]);
 229         }
 230     }
 231     XFree(children);
 232 }
 233
 234 void client_manage(Window window)
 235 {
 236     ObClient *self;
 237     XEvent e;
 238     XWindowAttributes attrib;
 239     XSetWindowAttributes attrib_set;
 240     XWMHints *wmhint;
 241     gboolean activate = FALSE;
 242     ObAppSettings *settings;
 243     gint placex, placey;
 244
 245     grab_server(TRUE);
 246
 247     /* check if it has already been unmapped by the time we started
 248        mapping. the grab does a sync so we don't have to here */
 249     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 250         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 251     {
 252         XPutBackEvent(ob_display, &e);
 253
 254         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 255         grab_server(FALSE);
 256         return; /* don't manage it */
 257     }
 258
 259     /* make sure it isn't an override-redirect window */
 260     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 261         attrib.override_redirect)
 262     {
 263         grab_server(FALSE);
 264         return; /* don't manage it */
 265     }
 266
 267     /* is the window a docking app */
 268     if ((wmhint = XGetWMHints(ob_display, window))) {
 269         if ((wmhint->flags & StateHint) &&
 270             wmhint->initial_state == WithdrawnState)
 271         {
 272             dock_add(window, wmhint);
 273             grab_server(FALSE);
 274             XFree(wmhint);
 275             return;
 276         }
 277         XFree(wmhint);
 278     }
 279
 280     ob_debug("Managing window: 0x%lx\n", window);
 281
 282     /* choose the events we want to receive on the CLIENT window */
 283     attrib_set.event_mask = CLIENT_EVENTMASK;
 284     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 285     XChangeWindowAttributes(ob_display, window,
 286                             CWEventMask|CWDontPropagate, &attrib_set);
 287
 288     /* create the ObClient struct, and populate it from the hints on the
 289        window */
 290     self = g_new0(ObClient, 1);
 291     self->obwin.type = Window_Client;
 292     self->window = window;
 293
 294     /* non-zero defaults */
 295     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 296     self->gravity = NorthWestGravity;
 297     self->desktop = screen_num_desktops; /* always an invalid value */
 298     self->user_time = focus_client ? focus_client->user_time : CurrentTime;
 299
 300     /* get all the stuff off the window */
 301     client_get_all(self, TRUE);
 302
 303     /* specify that if we exit, the window should not be destroyed and
 304        should be reparented back to root automatically */
 305     XChangeSaveSet(ob_display, window, SetModeInsert);
 306
 307     /* create the decoration frame for the client window */
 308     self->frame = frame_new(self);
 309
 310     frame_grab_client(self->frame);
 311
 312     /* we've grabbed everything and set everything that we need to at mapping
 313        time now */
 314     grab_server(FALSE);
 315
 316     /* per-app settings override stuff from client_get_all, and return the
 317        settings for other uses too. the returned settings is a shallow copy,
 318        that needs to be freed with g_free(). */
 319     settings = client_get_settings_state(self);
 320     /* the session should get the last say thought */
 321     client_restore_session_state(self);
 322
 323     /* now we have all of the window's information so we can set this up */
 324     client_setup_decor_and_functions(self);
 325
 326     {
 327         Time t = sn_app_started(self->startup_id, self->class);
 328         if (t) self->user_time = t;
 329     }
 330
 331     /* do this after we have a frame.. it uses the frame to help determine the
 332        WM_STATE to apply. */
 333     client_change_state(self);
 334
 335     /* add ourselves to the focus order */
 336     focus_order_add_new(self);
 337
 338     /* do this to add ourselves to the stacking list in a non-intrusive way */
 339     client_calc_layer(self);
 340
 341     /* focus the new window? */
 342     if (ob_state() != OB_STATE_STARTING &&
 343         (!self->session || self->session->focused) &&
 344         !self->iconic &&
 345         /* this means focus=true for window is same as config_focus_new=true */
 346         ((config_focus_new || (settings && settings->focus == 1)) ||
 347          client_search_focus_tree_full(self)) &&
 348         /* this checks for focus=false for the window */
 349         (!settings || settings->focus != 0) &&
 350         /* note the check against Type_Normal/Dialog, not client_normal(self),
 351            which would also include other types. in this case we want more
 352            strict rules for focus */
 353         (self->type == OB_CLIENT_TYPE_NORMAL ||
 354          self->type == OB_CLIENT_TYPE_DIALOG))
 355     {
 356         activate = TRUE;
 357     }
 358
 359     /* adjust the frame to the client's size before showing or placing
 360        the window */
 361     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 362     frame_adjust_client_area(self->frame);
 363
 364     /* where the frame was placed is where the window was originally */
 365     placex = self->area.x;
 366     placey = self->area.y;
 367
 368     /* figure out placement for the window if the window is new */
 369     if (ob_state() == OB_STATE_RUNNING) {
 370         gboolean transient;
 371
 372         ob_debug("Positioned: %s @ %d %d\n",
 373                  (!self->positioned ? "no" :
 374                   (self->positioned == PPosition ? "program specified" :
 375                    (self->positioned == USPosition ? "user specified" :
 376                     (self->positioned == (PPosition | USPosition) ?
 377                      "program + user specified" :
 378                      "BADNESS !?")))), self->area.x, self->area.y);
 379
 380         ob_debug("Sized: %s @ %d %d\n",
 381                  (!self->sized ? "no" :
 382                   (self->sized == PSize ? "program specified" :
 383                    (self->sized == USSize ? "user specified" :
 384                     (self->sized == (PSize | USSize) ?
 385                      "program + user specified" :
 386                      "BADNESS !?")))), self->area.width, self->area.height);
 387
 388         transient = place_client(self, &placex, &placey, settings);
 389
 390         /* if the window isn't user-positioned, then make it fit inside
 391            the visible screen area on its monitor.
 392
 393            the monitor is chosen by place_client! */
 394         if (!(self->sized & USSize)) {
 395             /* make a copy to modify */
 396             Rect a = *screen_area_monitor(self->desktop, client_monitor(self));
 397
 398             /* shrink by the frame's area */
 399             a.width -= self->frame->size.left + self->frame->size.right;
 400             a.height -= self->frame->size.top + self->frame->size.bottom;
 401
 402             /* fit the window inside the area */
 403             if (self->area.width > a.width || self->area.height > a.height) {
 404                 self->area.width = MIN(self->area.width, a.width);
 405                 self->area.height = MIN(self->area.height, a.height);
 406
 407                 ob_debug("setting window size to %dx%d\n",
 408                          self->area.width, self->area.height);
 409
 410                 /* adjust the frame to the client's new size */
 411                 frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 412                 frame_adjust_client_area(self->frame);
 413             }
 414         }
 415
 416         /* make sure the window is visible. */
 417         client_find_onscreen(self, &placex, &placey,
 418                              self->area.width, self->area.height,
 419                              /* non-normal clients has less rules, and
 420                                 windows that are being restored from a
 421                                 session do also. we can assume you want
 422                                 it back where you saved it. Clients saying
 423                                 they placed themselves are subjected to
 424                                 harder rules, ones that are placed by
 425                                 place.c or by the user are allowed partially
 426                                 off-screen and on xinerama divides (ie,
 427                                 it is up to the placement routines to avoid
 428                                 the xinerama divides) */
 429                              transient ||
 430                              (!(self->positioned & USPosition) &&
 431                               client_normal(self) &&
 432                               !self->session));
 433     }
 434
 435     ob_debug("placing window 0x%x at %d, %d with size %d x %d\n",
 436              self->window, placex, placey,
 437              self->area.width, self->area.height);
 438     if (self->session)
 439         ob_debug("  but session requested %d %d instead, overriding\n",
 440                  self->session->x, self->session->y);
 441
 442     /* do this after the window is placed, so the premax/prefullscreen numbers
 443        won't be all wacko!!
 444        also, this moves the window to the position where it has been placed
 445     */
 446     client_apply_startup_state(self);
 447
 448     /* move the client to its placed position, or it it's already there,
 449        generate a ConfigureNotify telling the client where it is.
 450
 451        do this after adjusting the frame. otherwise it gets all weird and
 452        clients don't work right
 453
 454        also do this after applying the startup state so maximize and fullscreen
 455        will get the right sizes and positions if the client is starting with
 456        those states
 457     */
 458     client_configure(self, placex, placey,
 459                      self->area.width, self->area.height,
 460                      self->border_width,
 461                      FALSE, TRUE);
 462
 463
 464     if (activate) {
 465         guint32 last_time = focus_client ?
 466             focus_client->user_time : CurrentTime;
 467
 468         /* This is focus stealing prevention */
 469         ob_debug_type(OB_DEBUG_FOCUS,
 470                       "Want to focus new window 0x%x with time %u "
 471                       "(last time %u)\n",
 472                       self->window, self->user_time, last_time);
 473
 474         /* if it's on another desktop */
 475         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 476             && /* the timestamp is from before you changed desktops */
 477             self->user_time && screen_desktop_user_time &&
 478             !event_time_after(self->user_time, screen_desktop_user_time))
 479         {
 480             activate = FALSE;
 481             ob_debug_type(OB_DEBUG_FOCUS,
 482                           "Not focusing the window because its on another "
 483                           "desktop\n");
 484         }
 485         /* If something is focused, and it's not our relative... */
 486         else if (focus_client && client_search_focus_tree_full(self) == NULL)
 487         {
 488             /* If time stamp is old, don't steal focus */
 489             if (self->user_time && last_time &&
 490                 !event_time_after(self->user_time, last_time))
 491             {
 492                 activate = FALSE;
 493                 ob_debug_type(OB_DEBUG_FOCUS,
 494                               "Not focusing the window because the time is "
 495                               "too old\n");
 496             }
 497             /* If its a transient (and parents aren't focused) and the time
 498                is ambiguous (either the current focus target doesn't have
 499                a timestamp, or they are the same (we probably inherited it
 500                from them) */
 501             else if (self->transient_for != NULL &&
 502                      (!last_time || self->user_time == last_time))
 503             {
 504                 activate = FALSE;
 505                 ob_debug_type(OB_DEBUG_FOCUS,
 506                               "Not focusing the window because it is a "
 507                               "transient, and the time is very ambiguous\n");
 508             }
 509             /* Don't steal focus from globally active clients.
 510                I stole this idea from KWin. It seems nice.
 511              */
 512             else if (!(focus_client->can_focus ||
 513                        focus_client->focus_notify))
 514             {
 515                 activate = FALSE;
 516                 ob_debug_type(OB_DEBUG_FOCUS,
 517                               "Not focusing the window because a globally "
 518                               "active client has focus\n");
 519             }
 520             /* Don't move focus if it's not going to go to this window
 521                anyway */
 522             else if (client_focus_target(self) != self) {
 523                 activate = FALSE;
 524                 ob_debug_type(OB_DEBUG_FOCUS,
 525                               "Not focusing the window because another window "
 526                               "would get the focus anyway\n");
 527             }
 528         }
 529
 530         if (!activate) {
 531             ob_debug_type(OB_DEBUG_FOCUS,
 532                           "Focus stealing prevention activated for %s with "
 533                           "time %u (last time %u)\n",
 534                           self->title, self->user_time, last_time);
 535             /* if the client isn't focused, then hilite it so the user
 536                knows it is there */
 537             client_hilite(self, TRUE);
 538         }
 539     }
 540     else {
 541         /* This may look rather odd. Well it's because new windows are added
 542            to the stacking order non-intrusively. If we're not going to focus
 543            the new window or hilite it, then we raise it to the top. This will
 544            take affect for things that don't get focused like splash screens.
 545            Also if you don't have focus_new enabled, then it's going to get
 546            raised to the top. Legacy begets legacy I guess?
 547         */
 548         if (!client_restore_session_stacking(self))
 549             stacking_raise(CLIENT_AS_WINDOW(self));
 550     }
 551
 552     mouse_grab_for_client(self, TRUE);
 553
 554     /* this has to happen before we try focus the window, but we want it to
 555        happen after the client's stacking has been determined or it looks bad
 556     */
 557     client_show(self);
 558
 559     if (activate) {
 560         gboolean stacked = client_restore_session_stacking(self);
 561         client_present(self, FALSE, !stacked);
 562     }
 563
 564     /* add to client list/map */
 565     client_list = g_list_append(client_list, self);
 566     g_hash_table_insert(window_map, &self->window, self);
 567
 568     /* this has to happen after we're in the client_list */
 569     if (STRUT_EXISTS(self->strut))
 570         screen_update_areas();
 571
 572     /* update the list hints */
 573     client_set_list();
 574
 575     /* free the ObAppSettings shallow copy */
 576     g_free(settings);
 577
 578     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 579              window, self->frame->plate, self->class);
 580
 581     return;
 582 }
 583
 584
 585 ObClient *client_fake_manage(Window window)
 586 {
 587     ObClient *self;
 588     ObAppSettings *settings;
 589
 590     ob_debug("Pretend-managing window: %lx\n", window);
 591
 592     /* do this minimal stuff to figure out the client's decorations */
 593
 594     self = g_new0(ObClient, 1);
 595     self->window = window;
 596
 597     client_get_all(self, FALSE);
 598     /* per-app settings override stuff, and return the settings for other
 599        uses too. this returns a shallow copy that needs to be freed */
 600     settings = client_get_settings_state(self);
 601
 602     client_setup_decor_and_functions(self);
 603
 604     /* create the decoration frame for the client window and adjust its size */
 605     self->frame = frame_new(self);
 606     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 607
 608     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 609              self->frame->size.left, self->frame->size.right,
 610              self->frame->size.top, self->frame->size.bottom);
 611
 612     /* free the ObAppSettings shallow copy */
 613     g_free(settings);
 614
 615     return self;
 616 }
 617
 618 void client_unmanage_all()
 619 {
 620     while (client_list != NULL)
 621         client_unmanage(client_list->data);
 622 }
 623
 624 void client_unmanage(ObClient *self)
 625 {
 626     guint j;
 627     GSList *it;
 628
 629     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 630              self->window, self->frame->plate,
 631              self->class, self->title ? self->title : "");
 632
 633     g_assert(self != NULL);
 634
 635     /* we dont want events no more. do this before hiding the frame so we
 636        don't generate more events */
 637     XSelectInput(ob_display, self->window, NoEventMask);
 638
 639     frame_hide(self->frame);
 640     /* flush to send the hide to the server quickly */
 641     XFlush(ob_display);
 642
 643     /* ignore enter events from the unmap so it doesnt mess with the
 644        focus */
 645     event_ignore_all_queued_enters();
 646
 647     mouse_grab_for_client(self, FALSE);
 648
 649     /* remove the window from our save set */
 650     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 651
 652     /* kill the property windows */
 653     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 654
 655     /* update the focus lists */
 656     focus_order_remove(self);
 657     if (client_focused(self)) {
 658         /* don't leave an invalid focus_client */
 659         focus_client = NULL;
 660     }
 661
 662     client_list = g_list_remove(client_list, self);
 663     stacking_remove(self);
 664     g_hash_table_remove(window_map, &self->window);
 665
 666     /* once the client is out of the list, update the struts to remove its
 667        influence */
 668     if (STRUT_EXISTS(self->strut))
 669         screen_update_areas();
 670
 671     client_call_notifies(self, client_destroy_notifies);
 672
 673     /* tell our parent(s) that we're gone */
 674     if (self->transient_for == OB_TRAN_GROUP) { /* transient of group */
 675         for (it = self->group->members; it; it = g_slist_next(it))
 676             if (it->data != self)
 677                 ((ObClient*)it->data)->transients =
 678                     g_slist_remove(((ObClient*)it->data)->transients,self);
 679     } else if (self->transient_for) {        /* transient of window */
 680         self->transient_for->transients =
 681             g_slist_remove(self->transient_for->transients, self);
 682     }
 683
 684     /* tell our transients that we're gone */
 685     for (it = self->transients; it; it = g_slist_next(it)) {
 686         if (((ObClient*)it->data)->transient_for != OB_TRAN_GROUP) {
 687             ((ObClient*)it->data)->transient_for = NULL;
 688             client_calc_layer(it->data);
 689         }
 690     }
 691
 692     /* remove from its group */
 693     if (self->group) {
 694         group_remove(self->group, self);
 695         self->group = NULL;
 696     }
 697
 698     /* restore the window's original geometry so it is not lost */
 699     {
 700         Rect a;
 701
 702         a = self->area;
 703
 704         if (self->fullscreen)
 705             a = self->pre_fullscreen_area;
 706         else if (self->max_horz || self->max_vert) {
 707             if (self->max_horz) {
 708                 a.x = self->pre_max_area.x;
 709                 a.width = self->pre_max_area.width;
 710             }
 711             if (self->max_vert) {
 712                 a.y = self->pre_max_area.y;
 713                 a.height = self->pre_max_area.height;
 714             }
 715         }
 716
 717         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 718         /* let it be moved and resized no matter what */
 719         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 720         self->decorations = 0; /* unmanaged windows have no decor */
 721
 722         client_move_resize(self, a.x, a.y, a.width, a.height);
 723     }
 724
 725     /* reparent the window out of the frame, and free the frame */
 726     frame_release_client(self->frame);
 727     frame_free(self->frame);
 728     self->frame = NULL;
 729
 730     if (ob_state() != OB_STATE_EXITING) {
 731         /* these values should not be persisted across a window
 732            unmapping/mapping */
 733         PROP_ERASE(self->window, net_wm_desktop);
 734         PROP_ERASE(self->window, net_wm_state);
 735         PROP_ERASE(self->window, wm_state);
 736     } else {
 737         /* if we're left in an unmapped state, the client wont be mapped.
 738            this is bad, since we will no longer be managing the window on
 739            restart */
 740         XMapWindow(ob_display, self->window);
 741     }
 742
 743     /* update the list hints */
 744     client_set_list();
 745
 746     ob_debug("Unmanaged window 0x%lx\n", self->window);
 747
 748     /* free all data allocated in the client struct */
 749     g_slist_free(self->transients);
 750     for (j = 0; j < self->nicons; ++j)
 751         g_free(self->icons[j].data);
 752     if (self->nicons > 0)
 753         g_free(self->icons);
 754     g_free(self->wm_command);
 755     g_free(self->title);
 756     g_free(self->icon_title);
 757     g_free(self->name);
 758     g_free(self->class);
 759     g_free(self->role);
 760     g_free(self->client_machine);
 761     g_free(self->sm_client_id);
 762     g_free(self);
 763 }
 764
 765 void client_fake_unmanage(ObClient *self)
 766 {
 767     /* this is all that got allocated to get the decorations */
 768
 769     frame_free(self->frame);
 770     g_free(self);
 771 }
 772
 773 /*! Returns a new structure containing the per-app settings for this client.
 774   The returned structure needs to be freed with g_free. */
 775 static ObAppSettings *client_get_settings_state(ObClient *self)
 776 {
 777     ObAppSettings *settings;
 778     GSList *it;
 779
 780     settings = config_create_app_settings();
 781
 782     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 783         ObAppSettings *app = it->data;
 784         gboolean match = TRUE;
 785
 786         g_assert(app->name != NULL || app->class != NULL);
 787
 788         /* we know that either name or class is not NULL so it will have to
 789            match to use the rule */
 790         if (app->name &&
 791             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 792             match = FALSE;
 793         else if (app->class &&
 794                 !g_pattern_match(app->class,
 795                                  strlen(self->class), self->class, NULL))
 796             match = FALSE;
 797         else if (app->role &&
 798                  !g_pattern_match(app->role,
 799                                   strlen(self->role), self->role, NULL))
 800             match = FALSE;
 801
 802         if (match) {
 803             ob_debug("Window matching: %s\n", app->name);
 804
 805             /* copy the settings to our struct, overriding the existing
 806                settings if they are not defaults */
 807             config_app_settings_copy_non_defaults(app, settings);
 808         }
 809     }
 810
 811     if (settings->shade != -1)
 812         self->shaded = !!settings->shade;
 813     if (settings->decor != -1)
 814         self->undecorated = !settings->decor;
 815     if (settings->iconic != -1)
 816         self->iconic = !!settings->iconic;
 817     if (settings->skip_pager != -1)
 818         self->skip_pager = !!settings->skip_pager;
 819     if (settings->skip_taskbar != -1)
 820         self->skip_taskbar = !!settings->skip_taskbar;
 821
 822     if (settings->max_vert != -1)
 823         self->max_vert = !!settings->max_vert;
 824     if (settings->max_horz != -1)
 825         self->max_horz = !!settings->max_horz;
 826
 827     if (settings->fullscreen != -1)
 828         self->fullscreen = !!settings->fullscreen;
 829
 830     if (settings->desktop) {
 831         if (settings->desktop == DESKTOP_ALL)
 832             self->desktop = settings->desktop;
 833         else if (settings->desktop > 0 &&
 834                  settings->desktop <= screen_num_desktops)
 835             self->desktop = settings->desktop - 1;
 836     }
 837
 838     if (settings->layer == -1) {
 839         self->below = TRUE;
 840         self->above = FALSE;
 841     }
 842     else if (settings->layer == 0) {
 843         self->below = FALSE;
 844         self->above = FALSE;
 845     }
 846     else if (settings->layer == 1) {
 847         self->below = FALSE;
 848         self->above = TRUE;
 849     }
 850     return settings;
 851 }
 852
 853 static void client_restore_session_state(ObClient *self)
 854 {
 855     GList *it;
 856
 857     ob_debug_type(OB_DEBUG_SM,
 858                   "Restore session for client %s\n", self->title);
 859
 860     if (!(it = session_state_find(self))) {
 861         ob_debug_type(OB_DEBUG_SM,
 862                       "Session data not found for client %s\n", self->title);
 863         return;
 864     }
 865
 866     self->session = it->data;
 867
 868     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 869                   self->title);
 870
 871     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 872     self->positioned = USPosition;
 873     self->sized = USSize;
 874     if (self->session->w > 0)
 875         self->area.width = self->session->w;
 876     if (self->session->h > 0)
 877         self->area.height = self->session->h;
 878     XResizeWindow(ob_display, self->window,
 879                   self->area.width, self->area.height);
 880
 881     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 882                      self->session->desktop :
 883                      MIN(screen_num_desktops - 1, self->session->desktop));
 884     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 885
 886     self->shaded = self->session->shaded;
 887     self->iconic = self->session->iconic;
 888     self->skip_pager = self->session->skip_pager;
 889     self->skip_taskbar = self->session->skip_taskbar;
 890     self->fullscreen = self->session->fullscreen;
 891     self->above = self->session->above;
 892     self->below = self->session->below;
 893     self->max_horz = self->session->max_horz;
 894     self->max_vert = self->session->max_vert;
 895     self->undecorated = self->session->undecorated;
 896 }
 897
 898 static gboolean client_restore_session_stacking(ObClient *self)
 899 {
 900     GList *it, *mypos;
 901
 902     if (!self->session) return FALSE;
 903
 904     mypos = g_list_find(session_saved_state, self->session);
 905     if (!mypos) return FALSE;
 906
 907     /* start above me and look for the first client */
 908     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 909         GList *cit;
 910
 911         for (cit = client_list; cit; cit = g_list_next(cit)) {
 912             ObClient *c = cit->data;
 913             /* found a client that was in the session, so go below it */
 914             if (c->session == it->data) {
 915                 stacking_below(CLIENT_AS_WINDOW(self),
 916                                CLIENT_AS_WINDOW(cit->data));
 917                 return TRUE;
 918             }
 919         }
 920     }
 921     return FALSE;
 922 }
 923
 924 void client_move_onscreen(ObClient *self, gboolean rude)
 925 {
 926     gint x = self->area.x;
 927     gint y = self->area.y;
 928     if (client_find_onscreen(self, &x, &y,
 929                              self->area.width,
 930                              self->area.height, rude)) {
 931         client_move(self, x, y);
 932     }
 933 }
 934
 935 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 936                               gboolean rude)
 937 {
 938     Rect *mon_a, *all_a;
 939     gint ox = *x, oy = *y;
 940     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 941     gint fw, fh;
 942     Rect desired;
 943
 944     RECT_SET(desired, *x, *y, w, h);
 945     all_a = screen_area(self->desktop);
 946     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired));
 947
 948     /* get where the frame would be */
 949     frame_client_gravity(self->frame, x, y, w, h);
 950
 951     /* get the requested size of the window with decorations */
 952     fw = self->frame->size.left + w + self->frame->size.right;
 953     fh = self->frame->size.top + h + self->frame->size.bottom;
 954
 955     /* This makes sure windows aren't entirely outside of the screen so you
 956        can't see them at all.
 957        It makes sure 10% of the window is on the screen at least. At don't let
 958        it move itself off the top of the screen, which would hide the titlebar
 959        on you. (The user can still do this if they want too, it's only limiting
 960        the application.
 961
 962        XXX watch for xinerama dead areas...
 963     */
 964     if (client_normal(self)) {
 965         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 966             *x = all_a->x + all_a->width - fw/10;
 967         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 968             *y = all_a->y + all_a->height - fh/10;
 969         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 970             *x = all_a->x - fw*9/10;
 971         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 972             *y = all_a->y - fw*9/10;
 973     }
 974
 975     /* If rudeness wasn't requested, then figure out of the client is currently
 976        entirely on the screen. If it is, and the position isn't changing by
 977        request, and it is enlarging, then be rude even though it wasn't
 978        requested */
 979     if (!rude) {
 980         Point oldtl, oldtr, oldbl, oldbr;
 981         Point newtl, newtr, newbl, newbr;
 982         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 983
 984         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 985         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 986                   self->frame->area.y + self->frame->area.height - 1);
 987         POINT_SET(oldtr, oldbr.x, oldtl.y);
 988         POINT_SET(oldbl, oldtl.x, oldbr.y);
 989
 990         POINT_SET(newtl, *x, *y);
 991         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 992         POINT_SET(newtr, newbr.x, newtl.y);
 993         POINT_SET(newbl, newtl.x, newbr.y);
 994
 995         /* is it moving or just resizing from some corner? */
 996         stationary_l = oldtl.x == newtl.x;
 997         stationary_r = oldtr.x == newtr.x;
 998         stationary_t = oldtl.y == newtl.y;
 999         stationary_b = oldbl.y == newbl.y;
1000
1001         /* if left edge is growing and didnt move right edge */
1002         if (stationary_r && newtl.x < oldtl.x)
1003             rudel = TRUE;
1004         /* if right edge is growing and didnt move left edge */
1005         if (stationary_l && newtr.x > oldtr.x)
1006             ruder = TRUE;
1007         /* if top edge is growing and didnt move bottom edge */
1008         if (stationary_b && newtl.y < oldtl.y)
1009             rudet = TRUE;
1010         /* if bottom edge is growing and didnt move top edge */
1011         if (stationary_t && newbl.y > oldbl.y)
1012             rudeb = TRUE;
1013     }
1014
1015     /* This here doesn't let windows even a pixel outside the struts/screen.
1016      * When called from client_manage, programs placing themselves are
1017      * forced completely onscreen, while things like
1018      * xterm -geometry resolution-width/2 will work fine. Trying to
1019      * place it completely offscreen will be handled in the above code.
1020      * Sorry for this confused comment, i am tired. */
1021     if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
1022     if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
1023         *x = mon_a->x + MAX(0, mon_a->width - fw);
1024
1025     if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
1026     if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
1027         *y = mon_a->y + MAX(0, mon_a->height - fh);
1028
1029     /* get where the client should be */
1030     frame_frame_gravity(self->frame, x, y, w, h);
1031
1032     return ox != *x || oy != *y;
1033 }
1034
1035 static void client_get_all(ObClient *self, gboolean real)
1036 {
1037     /* this is needed for the frame to set itself up */
1038     client_get_area(self);
1039
1040     /* these things can change the decor and functions of the window */
1041
1042     client_get_mwm_hints(self);
1043     /* this can change the mwmhints for special cases */
1044     client_get_type_and_transientness(self);
1045     client_get_state(self);
1046     client_update_normal_hints(self);
1047
1048     /* get the session related properties, these can change decorations
1049        from per-app settings */
1050     client_get_session_ids(self);
1051
1052     /* now we got everything that can affect the decorations */
1053     if (!real)
1054         return;
1055
1056     /* get this early so we have it for debugging */
1057     client_update_title(self);
1058
1059     client_update_protocols(self);
1060
1061     client_update_wmhints(self);
1062     /* this may have already been called from client_update_wmhints */
1063     if (self->transient_for == NULL)
1064         client_update_transient_for(self);
1065
1066     client_get_startup_id(self);
1067     client_get_desktop(self);/* uses transient data/group/startup id if a
1068                                 desktop is not specified */
1069     client_get_shaped(self);
1070
1071     {
1072         /* a couple type-based defaults for new windows */
1073
1074         /* this makes sure that these windows appear on all desktops */
1075         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1076             self->desktop = DESKTOP_ALL;
1077     }
1078
1079 #ifdef SYNC
1080     client_update_sync_request_counter(self);
1081 #endif
1082
1083     client_get_colormap(self);
1084     client_update_strut(self);
1085     client_update_icons(self);
1086     client_update_user_time_window(self);
1087     if (!self->user_time_window) /* check if this would have been called */
1088         client_update_user_time(self);
1089     client_update_icon_geometry(self);
1090 }
1091
1092 static void client_get_startup_id(ObClient *self)
1093 {
1094     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1095         if (self->group)
1096             PROP_GETS(self->group->leader,
1097                       net_startup_id, utf8, &self->startup_id);
1098 }
1099
1100 static void client_get_area(ObClient *self)
1101 {
1102     XWindowAttributes wattrib;
1103     Status ret;
1104
1105     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1106     g_assert(ret != BadWindow);
1107
1108     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1109     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1110     self->border_width = wattrib.border_width;
1111
1112     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1113              wattrib.width, wattrib.height, wattrib.border_width);
1114 }
1115
1116 static void client_get_desktop(ObClient *self)
1117 {
1118     guint32 d = screen_num_desktops; /* an always-invalid value */
1119
1120     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1121         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1122             self->desktop = screen_num_desktops - 1;
1123         else
1124             self->desktop = d;
1125         ob_debug("client requested desktop 0x%x\n", self->desktop);
1126     } else {
1127         gboolean trdesk = FALSE;
1128
1129         if (self->transient_for) {
1130             if (self->transient_for != OB_TRAN_GROUP) {
1131                 if (self->transient_for->desktop != DESKTOP_ALL) {
1132                     self->desktop = self->transient_for->desktop;
1133                     trdesk = TRUE;
1134                 }
1135             } else {
1136                 /* if all the group is on one desktop, then open it on the
1137                    same desktop */
1138                 GSList *it;
1139                 gboolean first = TRUE;
1140                 guint all = screen_num_desktops; /* not a valid value */
1141
1142                 for (it = self->group->members; it; it = g_slist_next(it)) {
1143                     ObClient *c = it->data;
1144                     if (c != self) {
1145                         if (first) {
1146                             all = c->desktop;
1147                             first = FALSE;
1148                         }
1149                         else if (all != c->desktop)
1150                             all = screen_num_desktops; /* make it invalid */
1151                     }
1152                 }
1153                 if (all != screen_num_desktops) {
1154                     self->desktop = all;
1155                     trdesk = TRUE;
1156                 }
1157             }
1158         }
1159         if (!trdesk) {
1160             /* try get from the startup-notification protocol */
1161             if (sn_get_desktop(self->startup_id, &self->desktop)) {
1162                 if (self->desktop >= screen_num_desktops &&
1163                     self->desktop != DESKTOP_ALL)
1164                     self->desktop = screen_num_desktops - 1;
1165             } else
1166                 /* defaults to the current desktop */
1167                 self->desktop = screen_desktop;
1168         }
1169     }
1170 }
1171
1172 static void client_get_state(ObClient *self)
1173 {
1174     guint32 *state;
1175     guint num;
1176
1177     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1178         gulong i;
1179         for (i = 0; i < num; ++i) {
1180             if (state[i] == prop_atoms.net_wm_state_modal)
1181                 self->modal = TRUE;
1182             else if (state[i] == prop_atoms.net_wm_state_shaded)
1183                 self->shaded = TRUE;
1184             else if (state[i] == prop_atoms.net_wm_state_hidden)
1185                 self->iconic = TRUE;
1186             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1187                 self->skip_taskbar = TRUE;
1188             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1189                 self->skip_pager = TRUE;
1190             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1191                 self->fullscreen = TRUE;
1192             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1193                 self->max_vert = TRUE;
1194             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1195                 self->max_horz = TRUE;
1196             else if (state[i] == prop_atoms.net_wm_state_above)
1197                 self->above = TRUE;
1198             else if (state[i] == prop_atoms.net_wm_state_below)
1199                 self->below = TRUE;
1200             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1201                 self->demands_attention = TRUE;
1202             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1203                 self->undecorated = TRUE;
1204         }
1205
1206         g_free(state);
1207     }
1208 }
1209
1210 static void client_get_shaped(ObClient *self)
1211 {
1212     self->shaped = FALSE;
1213 #ifdef   SHAPE
1214     if (extensions_shape) {
1215         gint foo;
1216         guint ufoo;
1217         gint s;
1218
1219         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1220
1221         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1222                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1223                            &ufoo);
1224         self->shaped = (s != 0);
1225     }
1226 #endif
1227 }
1228
1229 void client_update_transient_for(ObClient *self)
1230 {
1231     Window t = None;
1232     ObClient *target = NULL;
1233
1234     if (XGetTransientForHint(ob_display, self->window, &t)) {
1235         if (t != self->window) { /* cant be transient to itself! */
1236             target = g_hash_table_lookup(window_map, &t);
1237             /* if this happens then we need to check for it*/
1238             g_assert(target != self);
1239             if (target && !WINDOW_IS_CLIENT(target)) {
1240                 /* this can happen when a dialog is a child of
1241                    a dockapp, for example */
1242                 target = NULL;
1243             }
1244
1245             /* THIS IS SO ANNOYING ! ! ! ! Let me explain.... have a seat..
1246
1247                Setting the transient_for to Root is actually illegal, however
1248                applications from time have done this to specify transient for
1249                their group.
1250
1251                Now you can do that by being a TYPE_DIALOG and not setting
1252                the transient_for hint at all on your window. But people still
1253                use Root, and Kwin is very strange in this regard.
1254
1255                KWin 3.0 will not consider windows with transient_for set to
1256                Root as transient for their group *UNLESS* they are also modal.
1257                In that case, it will make them transient for the group. This
1258                leads to all sorts of weird behavior from KDE apps which are
1259                only tested in KWin. I'd like to follow their behavior just to
1260                make this work right with KDE stuff, but that seems wrong.
1261             */
1262             if (!target && self->group) {
1263                 /* not transient to a client, see if it is transient for a
1264                    group */
1265                 if (t == RootWindow(ob_display, ob_screen)) {
1266                     /* window is a transient for its group! */
1267                     target = OB_TRAN_GROUP;
1268                 }
1269             }
1270         }
1271     } else if (self->transient && self->group)
1272         target = OB_TRAN_GROUP;
1273
1274     client_update_transient_tree(self, self->group, self->group,
1275                                  self->transient_for, target);
1276     self->transient_for = target;
1277
1278 }
1279
1280 static void client_update_transient_tree(ObClient *self,
1281                                          ObGroup *oldgroup, ObGroup *newgroup,
1282                                          ObClient* oldparent,
1283                                          ObClient *newparent)
1284 {
1285     GSList *it, *next;
1286     ObClient *c;
1287
1288     /* * *
1289       Group transient windows are not allowed to have other group
1290       transient windows as their children.
1291       * * */
1292
1293
1294     /* No change has occured */
1295     if (oldgroup == newgroup && oldparent == newparent) return;
1296
1297     /** Remove the client from the transient tree wherever it has changed **/
1298
1299     /* If the window is becoming a direct transient for a window in its group
1300        then any group transients which were our children and are now becoming
1301        our parents need to stop being our children.
1302
1303        Group transients can't be children of group transients already, but
1304        we could have any number of direct parents above up, any of which could
1305        be transient for the group, and we need to remove it from our children.
1306     */
1307     if (oldparent != newparent &&
1308         newparent != NULL && newparent != OB_TRAN_GROUP &&
1309         newgroup != NULL && newgroup == oldgroup)
1310     {
1311         ObClient *look = newparent;
1312         do {
1313             self->transients = g_slist_remove(self->transients, look);
1314             look = look->transient_for;
1315         } while (look != NULL && look != OB_TRAN_GROUP);
1316     }
1317
1318
1319     /* If the group changed, or if we are just becoming transient for the
1320        group, then we need to remove any old group transient windows
1321        from our children. But if we were already transient for the group, then
1322        other group transients are not our children. */
1323     if ((oldgroup != newgroup ||
1324          (newparent == OB_TRAN_GROUP && oldparent != newparent)) &&
1325         oldgroup != NULL && oldparent != OB_TRAN_GROUP)
1326     {
1327         for (it = self->transients; it; it = next) {
1328             next = g_slist_next(it);
1329             c = it->data;
1330             if (c->group == oldgroup)
1331                 self->transients = g_slist_delete_link(self->transients, it);
1332         }
1333     }
1334
1335     /* If we used to be transient for a group and now we are not, or we're
1336        transient for a new group, then we need to remove ourselves from all
1337        our ex-parents */
1338     if (oldparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1339                                        oldparent != newparent))
1340     {
1341         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1342             c = it->data;
1343             if (c != self && (!c->transient_for ||
1344                               c->transient_for != OB_TRAN_GROUP))
1345                 c->transients = g_slist_remove(c->transients, self);
1346         }
1347     }
1348     /* If we used to be transient for a single window and we are no longer
1349        transient for it, then we need to remove ourself from its children */
1350     else if (oldparent != NULL && oldparent != OB_TRAN_GROUP &&
1351              oldparent != newparent)
1352         oldparent->transients = g_slist_remove(oldparent->transients, self);
1353
1354
1355     /** Re-add the client to the transient tree wherever it has changed **/
1356
1357     /* If we're now transient for a group and we weren't transient for it
1358        before then we need to add ourselves to all our new parents */
1359     if (newparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1360                                        oldparent != newparent))
1361     {
1362         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1363             c = it->data;
1364             if (c != self && (!c->transient_for ||
1365                               c->transient_for != OB_TRAN_GROUP))
1366                 c->transients = g_slist_prepend(c->transients, self);
1367         }
1368     }
1369     /* If we are now transient for a single window which we weren't before,
1370        we need to add ourselves to its children
1371
1372        WARNING: Cyclical transient ness is possible if two windows are
1373        transient for eachother.
1374     */
1375     else if (newparent != NULL && newparent != OB_TRAN_GROUP &&
1376              newparent != oldparent &&
1377              /* don't make ourself its child if it is already our child */
1378              !client_is_direct_child(self, newparent))
1379         newparent->transients = g_slist_prepend(newparent->transients, self);
1380
1381     /* If the group changed then we need to add any new group transient
1382        windows to our children. But if we're transient for the group, then
1383        other group transients are not our children.
1384
1385        WARNING: Cyclical transient-ness is possible. For e.g. if:
1386        A is transient for the group
1387        B is transient for A
1388        C is transient for B
1389        A can't be transient for C or we have a cycle
1390     */
1391     if (oldgroup != newgroup && newgroup != NULL &&
1392         newparent != OB_TRAN_GROUP)
1393     {
1394         for (it = newgroup->members; it; it = g_slist_next(it)) {
1395             c = it->data;
1396             if (c != self && c->transient_for == OB_TRAN_GROUP &&
1397                 /* Don't make it our child if it is already our parent */
1398                 !client_is_direct_child(c, self))
1399             {
1400                 self->transients = g_slist_prepend(self->transients, c);
1401             }
1402         }
1403     }
1404 }
1405
1406 static void client_get_mwm_hints(ObClient *self)
1407 {
1408     guint num;
1409     guint32 *hints;
1410
1411     self->mwmhints.flags = 0; /* default to none */
1412
1413     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1414                     &hints, &num)) {
1415         if (num >= OB_MWM_ELEMENTS) {
1416             self->mwmhints.flags = hints[0];
1417             self->mwmhints.functions = hints[1];
1418             self->mwmhints.decorations = hints[2];
1419         }
1420         g_free(hints);
1421     }
1422 }
1423
1424 void client_get_type_and_transientness(ObClient *self)
1425 {
1426     guint num, i;
1427     guint32 *val;
1428     Window t;
1429
1430     self->type = -1;
1431     self->transient = FALSE;
1432
1433     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1434         /* use the first value that we know about in the array */
1435         for (i = 0; i < num; ++i) {
1436             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1437                 self->type = OB_CLIENT_TYPE_DESKTOP;
1438             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1439                 self->type = OB_CLIENT_TYPE_DOCK;
1440             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1441                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1442             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1443                 self->type = OB_CLIENT_TYPE_MENU;
1444             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1445                 self->type = OB_CLIENT_TYPE_UTILITY;
1446             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1447                 self->type = OB_CLIENT_TYPE_SPLASH;
1448             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1449                 self->type = OB_CLIENT_TYPE_DIALOG;
1450             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1451                 self->type = OB_CLIENT_TYPE_NORMAL;
1452             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1453                 /* prevent this window from getting any decor or
1454                    functionality */
1455                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1456                                          OB_MWM_FLAG_DECORATIONS);
1457                 self->mwmhints.decorations = 0;
1458                 self->mwmhints.functions = 0;
1459             }
1460             if (self->type != (ObClientType) -1)
1461                 break; /* grab the first legit type */
1462         }
1463         g_free(val);
1464     }
1465
1466     if (XGetTransientForHint(ob_display, self->window, &t))
1467         self->transient = TRUE;
1468
1469     if (self->type == (ObClientType) -1) {
1470         /*the window type hint was not set, which means we either classify
1471           ourself as a normal window or a dialog, depending on if we are a
1472           transient. */
1473         if (self->transient)
1474             self->type = OB_CLIENT_TYPE_DIALOG;
1475         else
1476             self->type = OB_CLIENT_TYPE_NORMAL;
1477     }
1478
1479     /* then, based on our type, we can update our transientness.. */
1480     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1481         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1482         self->type == OB_CLIENT_TYPE_MENU ||
1483         self->type == OB_CLIENT_TYPE_UTILITY)
1484     {
1485         self->transient = TRUE;
1486     }
1487 }
1488
1489 void client_update_protocols(ObClient *self)
1490 {
1491     guint32 *proto;
1492     guint num_return, i;
1493
1494     self->focus_notify = FALSE;
1495     self->delete_window = FALSE;
1496
1497     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1498         for (i = 0; i < num_return; ++i) {
1499             if (proto[i] == prop_atoms.wm_delete_window)
1500                 /* this means we can request the window to close */
1501                 self->delete_window = TRUE;
1502             else if (proto[i] == prop_atoms.wm_take_focus)
1503                 /* if this protocol is requested, then the window will be
1504                    notified whenever we want it to receive focus */
1505                 self->focus_notify = TRUE;
1506 #ifdef SYNC
1507             else if (proto[i] == prop_atoms.net_wm_sync_request)
1508                 /* if this protocol is requested, then resizing the
1509                    window will be synchronized between the frame and the
1510                    client */
1511                 self->sync_request = TRUE;
1512 #endif
1513         }
1514         g_free(proto);
1515     }
1516 }
1517
1518 #ifdef SYNC
1519 void client_update_sync_request_counter(ObClient *self)
1520 {
1521     guint32 i;
1522
1523     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1524         self->sync_counter = i;
1525     } else
1526         self->sync_counter = None;
1527 }
1528 #endif
1529
1530 void client_get_colormap(ObClient *self)
1531 {
1532     XWindowAttributes wa;
1533
1534     if (XGetWindowAttributes(ob_display, self->window, &wa))
1535         client_update_colormap(self, wa.colormap);
1536 }
1537
1538 void client_update_colormap(ObClient *self, Colormap colormap)
1539 {
1540     if (colormap == self->colormap) return;
1541
1542     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1543
1544     if (client_focused(self)) {
1545         screen_install_colormap(self, FALSE); /* uninstall old one */
1546         self->colormap = colormap;
1547         screen_install_colormap(self, FALSE); /* install new one */
1548     } else
1549         self->colormap = colormap;
1550 }
1551
1552 void client_update_normal_hints(ObClient *self)
1553 {
1554     XSizeHints size;
1555     glong ret;
1556
1557     /* defaults */
1558     self->min_ratio = 0.0f;
1559     self->max_ratio = 0.0f;
1560     SIZE_SET(self->size_inc, 1, 1);
1561     SIZE_SET(self->base_size, 0, 0);
1562     SIZE_SET(self->min_size, 0, 0);
1563     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1564
1565     /* get the hints from the window */
1566     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1567         /* normal windows can't request placement! har har
1568         if (!client_normal(self))
1569         */
1570         self->positioned = (size.flags & (PPosition|USPosition));
1571         self->sized = (size.flags & (PSize|USSize));
1572
1573         if (size.flags & PWinGravity)
1574             self->gravity = size.win_gravity;
1575
1576         if (size.flags & PAspect) {
1577             if (size.min_aspect.y)
1578                 self->min_ratio =
1579                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1580             if (size.max_aspect.y)
1581                 self->max_ratio =
1582                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1583         }
1584
1585         if (size.flags & PMinSize)
1586             SIZE_SET(self->min_size, size.min_width, size.min_height);
1587
1588         if (size.flags & PMaxSize)
1589             SIZE_SET(self->max_size, size.max_width, size.max_height);
1590
1591         if (size.flags & PBaseSize)
1592             SIZE_SET(self->base_size, size.base_width, size.base_height);
1593
1594         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1595             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1596     }
1597 }
1598
1599 /*! This needs to be followed by a call to client_configure to make
1600   the changes show */
1601 void client_setup_decor_and_functions(ObClient *self)
1602 {
1603     /* start with everything (cept fullscreen) */
1604     self->decorations =
1605         (OB_FRAME_DECOR_TITLEBAR |
1606          OB_FRAME_DECOR_HANDLE |
1607          OB_FRAME_DECOR_GRIPS |
1608          OB_FRAME_DECOR_BORDER |
1609          OB_FRAME_DECOR_ICON |
1610          OB_FRAME_DECOR_ALLDESKTOPS |
1611          OB_FRAME_DECOR_ICONIFY |
1612          OB_FRAME_DECOR_MAXIMIZE |
1613          OB_FRAME_DECOR_SHADE |
1614          OB_FRAME_DECOR_CLOSE);
1615     self->functions =
1616         (OB_CLIENT_FUNC_RESIZE |
1617          OB_CLIENT_FUNC_MOVE |
1618          OB_CLIENT_FUNC_ICONIFY |
1619          OB_CLIENT_FUNC_MAXIMIZE |
1620          OB_CLIENT_FUNC_SHADE |
1621          OB_CLIENT_FUNC_CLOSE |
1622          OB_CLIENT_FUNC_BELOW |
1623          OB_CLIENT_FUNC_ABOVE |
1624          OB_CLIENT_FUNC_UNDECORATE);
1625
1626     if (!(self->min_size.width < self->max_size.width ||
1627           self->min_size.height < self->max_size.height))
1628         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1629
1630     switch (self->type) {
1631     case OB_CLIENT_TYPE_NORMAL:
1632         /* normal windows retain all of the possible decorations and
1633            functionality, and are the only windows that you can fullscreen */
1634         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1635         break;
1636
1637     case OB_CLIENT_TYPE_DIALOG:
1638     case OB_CLIENT_TYPE_UTILITY:
1639         /* these windows don't have anything added or removed by default */
1640         break;
1641
1642     case OB_CLIENT_TYPE_MENU:
1643     case OB_CLIENT_TYPE_TOOLBAR:
1644         /* these windows can't iconify or maximize */
1645         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1646                                OB_FRAME_DECOR_MAXIMIZE);
1647         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1648                              OB_CLIENT_FUNC_MAXIMIZE);
1649         break;
1650
1651     case OB_CLIENT_TYPE_SPLASH:
1652         /* these don't get get any decorations, and the only thing you can
1653            do with them is move them */
1654         self->decorations = 0;
1655         self->functions = OB_CLIENT_FUNC_MOVE;
1656         break;
1657
1658     case OB_CLIENT_TYPE_DESKTOP:
1659         /* these windows are not manipulated by the window manager */
1660         self->decorations = 0;
1661         self->functions = 0;
1662         break;
1663
1664     case OB_CLIENT_TYPE_DOCK:
1665         /* these windows are not manipulated by the window manager, but they
1666            can set below layer which has a special meaning */
1667         self->decorations = 0;
1668         self->functions = OB_CLIENT_FUNC_BELOW;
1669         break;
1670     }
1671
1672     /* Mwm Hints are applied subtractively to what has already been chosen for
1673        decor and functionality */
1674     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1675         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1676             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1677                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1678             {
1679                 /* if the mwm hints request no handle or title, then all
1680                    decorations are disabled, but keep the border if that's
1681                    specified */
1682                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1683                     self->decorations = OB_FRAME_DECOR_BORDER;
1684                 else
1685                     self->decorations = 0;
1686             }
1687         }
1688     }
1689
1690     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1691         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1692             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1693                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1694             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1695                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1696             /* dont let mwm hints kill any buttons
1697                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1698                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1699                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1700                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1701             */
1702             /* dont let mwm hints kill the close button
1703                if (! (self->mwmhints.functions & MwmFunc_Close))
1704                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1705         }
1706     }
1707
1708     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1709         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1710     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1711         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1712     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1713         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1714
1715     /* can't maximize without moving/resizing */
1716     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1717           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1718           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1719         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1720         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1721     }
1722
1723     if (self->max_horz && self->max_vert) {
1724         /* you can't resize fully maximized windows */
1725         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1726         /* kill the handle on fully maxed windows */
1727         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1728     }
1729
1730     /* If there are no decorations to remove, don't allow the user to try
1731        toggle the state */
1732     if (self->decorations == 0)
1733         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1734
1735     /* finally, the user can have requested no decorations, which overrides
1736        everything (but doesnt give it a border if it doesnt have one) */
1737     if (self->undecorated) {
1738         if (config_theme_keepborder)
1739             self->decorations &= OB_FRAME_DECOR_BORDER;
1740         else
1741             self->decorations = 0;
1742     }
1743
1744     /* if we don't have a titlebar, then we cannot shade! */
1745     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1746         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1747
1748     /* now we need to check against rules for the client's current state */
1749     if (self->fullscreen) {
1750         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1751                             OB_CLIENT_FUNC_FULLSCREEN |
1752                             OB_CLIENT_FUNC_ICONIFY);
1753         self->decorations = 0;
1754     }
1755
1756     client_change_allowed_actions(self);
1757 }
1758
1759 static void client_change_allowed_actions(ObClient *self)
1760 {
1761     gulong actions[12];
1762     gint num = 0;
1763
1764     /* desktop windows are kept on all desktops */
1765     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1766         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1767
1768     if (self->functions & OB_CLIENT_FUNC_SHADE)
1769         actions[num++] = prop_atoms.net_wm_action_shade;
1770     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1771         actions[num++] = prop_atoms.net_wm_action_close;
1772     if (self->functions & OB_CLIENT_FUNC_MOVE)
1773         actions[num++] = prop_atoms.net_wm_action_move;
1774     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1775         actions[num++] = prop_atoms.net_wm_action_minimize;
1776     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1777         actions[num++] = prop_atoms.net_wm_action_resize;
1778     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1779         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1780     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1781         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1782         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1783     }
1784     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1785         actions[num++] = prop_atoms.net_wm_action_above;
1786     if (self->functions & OB_CLIENT_FUNC_BELOW)
1787         actions[num++] = prop_atoms.net_wm_action_below;
1788     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1789         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1790
1791     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1792
1793     /* make sure the window isn't breaking any rules now */
1794
1795     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1796         if (self->frame) client_shade(self, FALSE);
1797         else self->shaded = FALSE;
1798     }
1799     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1800         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1801         else self->iconic = FALSE;
1802     }
1803     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1804         if (self->frame) client_fullscreen(self, FALSE);
1805         else self->fullscreen = FALSE;
1806     }
1807     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1808                                                          self->max_vert)) {
1809         if (self->frame) client_maximize(self, FALSE, 0);
1810         else self->max_vert = self->max_horz = FALSE;
1811     }
1812 }
1813
1814 void client_reconfigure(ObClient *self)
1815 {
1816     client_configure(self, self->area.x, self->area.y,
1817                      self->area.width, self->area.height,
1818                      self->border_width, FALSE, TRUE);
1819 }
1820
1821 void client_update_wmhints(ObClient *self)
1822 {
1823     XWMHints *hints;
1824
1825     /* assume a window takes input if it doesnt specify */
1826     self->can_focus = TRUE;
1827
1828     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1829         gboolean ur;
1830
1831         if (hints->flags & InputHint)
1832             self->can_focus = hints->input;
1833
1834         /* only do this when first managing the window *AND* when we aren't
1835            starting up! */
1836         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1837             if (hints->flags & StateHint)
1838                 self->iconic = hints->initial_state == IconicState;
1839
1840         ur = self->urgent;
1841         self->urgent = (hints->flags & XUrgencyHint);
1842         if (self->urgent && !ur)
1843             client_hilite(self, TRUE);
1844         else if (!self->urgent && ur && self->demands_attention)
1845             client_hilite(self, FALSE);
1846
1847         if (!(hints->flags & WindowGroupHint))
1848             hints->window_group = None;
1849
1850         /* did the group state change? */
1851         if (hints->window_group !=
1852             (self->group ? self->group->leader : None))
1853         {
1854             ObGroup *oldgroup = self->group;
1855
1856             /* remove from the old group if there was one */
1857             if (self->group != NULL) {
1858                 group_remove(self->group, self);
1859                 self->group = NULL;
1860             }
1861
1862             /* add ourself to the group if we have one */
1863             if (hints->window_group != None) {
1864                 self->group = group_add(hints->window_group, self);
1865             }
1866
1867             /* Put ourselves into the new group's transient tree, and remove
1868                ourselves from the old group's */
1869             client_update_transient_tree(self, oldgroup, self->group,
1870                                          self->transient_for,
1871                                          self->transient_for);
1872
1873             /* Lastly, being in a group, or not, can change if the window is
1874                transient for anything.
1875
1876                The logic for this is:
1877                self->transient = TRUE always if the window wants to be
1878                transient for something, even if transient_for was NULL because
1879                it wasn't in a group before.
1880
1881                If transient_for was NULL and oldgroup was NULL we can assume
1882                that when we add the new group, it will become transient for
1883                something.
1884
1885                If transient_for was OB_TRAN_GROUP, then it must have already
1886                had a group. If it is getting a new group, the above call to
1887                client_update_transient_tree has already taken care of
1888                everything ! If it is losing all group status then it will
1889                no longer be transient for anything and that needs to be
1890                updated.
1891             */
1892             if (self->transient &&
1893                 ((self->transient_for == NULL && oldgroup == NULL) ||
1894                  (self->transient_for == OB_TRAN_GROUP && !self->group)))
1895                 client_update_transient_for(self);
1896         }
1897
1898         /* the WM_HINTS can contain an icon */
1899         if (hints->flags & IconPixmapHint)
1900             client_update_icons(self);
1901
1902         XFree(hints);
1903     }
1904 }
1905
1906 void client_update_title(ObClient *self)
1907 {
1908     gchar *data = NULL;
1909     gchar *visible = NULL;
1910
1911     g_free(self->title);
1912
1913     /* try netwm */
1914     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1915         /* try old x stuff */
1916         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1917               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1918             if (self->transient) {
1919                 /*
1920                   GNOME alert windows are not given titles:
1921                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1922                 */
1923                 data = g_strdup("");
1924             } else
1925                 data = g_strdup("Unnamed Window");
1926         }
1927     }
1928
1929     if (self->client_machine) {
1930         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1931         g_free(data);
1932     } else
1933         visible = data;
1934
1935     PROP_SETS(self->window, net_wm_visible_name, visible);
1936     self->title = visible;
1937
1938     if (self->frame)
1939         frame_adjust_title(self->frame);
1940
1941     /* update the icon title */
1942     data = NULL;
1943     g_free(self->icon_title);
1944
1945     /* try netwm */
1946     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1947         /* try old x stuff */
1948         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1949               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1950             data = g_strdup(self->title);
1951
1952     if (self->client_machine) {
1953         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1954         g_free(data);
1955     } else
1956         visible = data;
1957
1958     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
1959     self->icon_title = visible;
1960 }
1961
1962 void client_update_strut(ObClient *self)
1963 {
1964     guint num;
1965     guint32 *data;
1966     gboolean got = FALSE;
1967     StrutPartial strut;
1968
1969     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1970                     &data, &num)) {
1971         if (num == 12) {
1972             got = TRUE;
1973             STRUT_PARTIAL_SET(strut,
1974                               data[0], data[2], data[1], data[3],
1975                               data[4], data[5], data[8], data[9],
1976                               data[6], data[7], data[10], data[11]);
1977         }
1978         g_free(data);
1979     }
1980
1981     if (!got &&
1982         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1983         if (num == 4) {
1984             const Rect *a;
1985
1986             got = TRUE;
1987
1988             /* use the screen's width/height */
1989             a = screen_physical_area();
1990
1991             STRUT_PARTIAL_SET(strut,
1992                               data[0], data[2], data[1], data[3],
1993                               a->y, a->y + a->height - 1,
1994                               a->x, a->x + a->width - 1,
1995                               a->y, a->y + a->height - 1,
1996                               a->x, a->x + a->width - 1);
1997         }
1998         g_free(data);
1999     }
2000
2001     if (!got)
2002         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2003                           0, 0, 0, 0, 0, 0, 0, 0);
2004
2005     if (!STRUT_EQUAL(strut, self->strut)) {
2006         self->strut = strut;
2007
2008         /* updating here is pointless while we're being mapped cuz we're not in
2009            the client list yet */
2010         if (self->frame)
2011             screen_update_areas();
2012     }
2013 }
2014
2015 void client_update_icons(ObClient *self)
2016 {
2017     guint num;
2018     guint32 *data;
2019     guint w, h, i, j;
2020
2021     for (i = 0; i < self->nicons; ++i)
2022         g_free(self->icons[i].data);
2023     if (self->nicons > 0)
2024         g_free(self->icons);
2025     self->nicons = 0;
2026
2027     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2028         /* figure out how many valid icons are in here */
2029         i = 0;
2030         while (num - i > 2) {
2031             w = data[i++];
2032             h = data[i++];
2033             i += w * h;
2034             if (i > num || w*h == 0) break;
2035             ++self->nicons;
2036         }
2037
2038         self->icons = g_new(ObClientIcon, self->nicons);
2039
2040         /* store the icons */
2041         i = 0;
2042         for (j = 0; j < self->nicons; ++j) {
2043             guint x, y, t;
2044
2045             w = self->icons[j].width = data[i++];
2046             h = self->icons[j].height = data[i++];
2047
2048             if (w*h == 0) continue;
2049
2050             self->icons[j].data = g_new(RrPixel32, w * h);
2051             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2052                 if (x >= w) {
2053                     x = 0;
2054                     ++y;
2055                 }
2056                 self->icons[j].data[t] =
2057                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2058                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2059                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2060                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2061             }
2062             g_assert(i <= num);
2063         }
2064
2065         g_free(data);
2066     } else {
2067         XWMHints *hints;
2068
2069         if ((hints = XGetWMHints(ob_display, self->window))) {
2070             if (hints->flags & IconPixmapHint) {
2071                 self->nicons++;
2072                 self->icons = g_new(ObClientIcon, self->nicons);
2073                 xerror_set_ignore(TRUE);
2074                 if (!RrPixmapToRGBA(ob_rr_inst,
2075                                     hints->icon_pixmap,
2076                                     (hints->flags & IconMaskHint ?
2077                                      hints->icon_mask : None),
2078                                     &self->icons[self->nicons-1].width,
2079                                     &self->icons[self->nicons-1].height,
2080                                     &self->icons[self->nicons-1].data)){
2081                     g_free(&self->icons[self->nicons-1]);
2082                     self->nicons--;
2083                 }
2084                 xerror_set_ignore(FALSE);
2085             }
2086             XFree(hints);
2087         }
2088     }
2089
2090     /* set the default icon onto the window
2091        in theory, this could be a race, but if a window doesn't set an icon
2092        or removes it entirely, it's not very likely it is going to set one
2093        right away afterwards */
2094     if (self->nicons == 0) {
2095         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2096         gulong *data;
2097
2098         data = g_new(gulong, 48*48+2);
2099         data[0] = data[1] =  48;
2100         for (i = 0; i < 48*48; ++i)
2101             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2102                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2103                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2104                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2105         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2106         g_free(data);
2107     } else if (self->frame)
2108         /* don't draw the icon empty if we're just setting one now anyways,
2109            we'll get the property change any second */
2110         frame_adjust_icon(self->frame);
2111 }
2112
2113 void client_update_user_time(ObClient *self)
2114 {
2115     guint32 time;
2116     gboolean got = FALSE;
2117
2118     if (self->user_time_window)
2119         got = PROP_GET32(self->user_time_window,
2120                          net_wm_user_time, cardinal, &time);
2121     if (!got)
2122         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2123
2124     if (got) {
2125         /* we set this every time, not just when it grows, because in practice
2126            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2127            backward we don't want all windows to stop focusing. we'll just
2128            assume noone is setting times older than the last one, cuz that
2129            would be pretty stupid anyways
2130         */
2131         self->user_time = time;
2132
2133         /*ob_debug("window %s user time %u\n", self->title, time);*/
2134     }
2135 }
2136
2137 void client_update_user_time_window(ObClient *self)
2138 {
2139     guint32 w;
2140
2141     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2142         w = None;
2143
2144     if (w != self->user_time_window) {
2145         /* remove the old window */
2146         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2147         self->user_time_window = None;
2148
2149         if (self->group && self->group->leader == w) {
2150             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2151                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2152             /* do it anyways..? */
2153         }
2154         else if (w == self->window) {
2155             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2156                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2157             w = None; /* don't do it */
2158         }
2159
2160         /* add the new window */
2161         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2162         self->user_time_window = w;
2163
2164         /* and update from it */
2165         client_update_user_time(self);
2166     }
2167 }
2168
2169 void client_update_icon_geometry(ObClient *self)
2170 {
2171     guint num;
2172     guint32 *data;
2173
2174     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2175
2176     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2177         && num == 4)
2178     {
2179         /* don't let them set it with an area < 0 */
2180         RECT_SET(self->icon_geometry, data[0], data[1],
2181                  MAX(data[2],0), MAX(data[3],0));
2182     }
2183 }
2184
2185 static void client_get_session_ids(ObClient *self)
2186 {
2187     guint32 leader;
2188     gboolean got;
2189     gchar *s;
2190     gchar **ss;
2191
2192     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2193         leader = None;
2194
2195     /* get the SM_CLIENT_ID */
2196     got = FALSE;
2197     if (leader)
2198         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2199     if (!got)
2200         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2201
2202     /* get the WM_CLASS (name and class). make them "" if they are not
2203        provided */
2204     got = FALSE;
2205     if (leader)
2206         got = PROP_GETSS(leader, wm_class, locale, &ss);
2207     if (!got)
2208         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2209
2210     if (got) {
2211         if (ss[0]) {
2212             self->name = g_strdup(ss[0]);
2213             if (ss[1])
2214                 self->class = g_strdup(ss[1]);
2215         }
2216         g_strfreev(ss);
2217     }
2218
2219     if (self->name == NULL) self->name = g_strdup("");
2220     if (self->class == NULL) self->class = g_strdup("");
2221
2222     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2223     got = FALSE;
2224     if (leader)
2225         got = PROP_GETS(leader, wm_window_role, locale, &s);
2226     if (!got)
2227         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2228
2229     if (got)
2230         self->role = s;
2231     else
2232         self->role = g_strdup("");
2233
2234     /* get the WM_COMMAND */
2235     got = FALSE;
2236
2237     if (leader)
2238         got = PROP_GETSS(leader, wm_command, locale, &ss);
2239     if (!got)
2240         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2241
2242     if (got) {
2243         /* merge/mash them all together */
2244         gchar *merge = NULL;
2245         gint i;
2246
2247         for (i = 0; ss[i]; ++i) {
2248             gchar *tmp = merge;
2249             if (merge)
2250                 merge = g_strconcat(merge, ss[i], NULL);
2251             else
2252                 merge = g_strconcat(ss[i], NULL);
2253             g_free(tmp);
2254         }
2255         g_strfreev(ss);
2256
2257         self->wm_command = merge;
2258     }
2259
2260     /* get the WM_CLIENT_MACHINE */
2261     got = FALSE;
2262     if (leader)
2263         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2264     if (!got)
2265         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2266
2267     if (got) {
2268         gchar localhost[128];
2269
2270         gethostname(localhost, 127);
2271         localhost[127] = '\0';
2272         if (strcmp(localhost, s) != 0)
2273             self->client_machine = s;
2274         else
2275             g_free(s);
2276     }
2277 }
2278
2279 static void client_change_wm_state(ObClient *self)
2280 {
2281     gulong state[2];
2282     glong old;
2283
2284     old = self->wmstate;
2285
2286     if (self->shaded || self->iconic ||
2287         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2288     {
2289         self->wmstate = IconicState;
2290     } else
2291         self->wmstate = NormalState;
2292
2293     if (old != self->wmstate) {
2294         PROP_MSG(self->window, kde_wm_change_state,
2295                  self->wmstate, 1, 0, 0);
2296
2297         state[0] = self->wmstate;
2298         state[1] = None;
2299         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2300     }
2301 }
2302
2303 static void client_change_state(ObClient *self)
2304 {
2305     gulong netstate[11];
2306     guint num;
2307
2308     num = 0;
2309     if (self->modal)
2310         netstate[num++] = prop_atoms.net_wm_state_modal;
2311     if (self->shaded)
2312         netstate[num++] = prop_atoms.net_wm_state_shaded;
2313     if (self->iconic)
2314         netstate[num++] = prop_atoms.net_wm_state_hidden;
2315     if (self->skip_taskbar)
2316         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2317     if (self->skip_pager)
2318         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2319     if (self->fullscreen)
2320         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2321     if (self->max_vert)
2322         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2323     if (self->max_horz)
2324         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2325     if (self->above)
2326         netstate[num++] = prop_atoms.net_wm_state_above;
2327     if (self->below)
2328         netstate[num++] = prop_atoms.net_wm_state_below;
2329     if (self->demands_attention)
2330         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2331     if (self->undecorated)
2332         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2333     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2334
2335     if (self->frame)
2336         frame_adjust_state(self->frame);
2337 }
2338
2339 ObClient *client_search_focus_tree(ObClient *self)
2340 {
2341     GSList *it;
2342     ObClient *ret;
2343
2344     for (it = self->transients; it; it = g_slist_next(it)) {
2345         if (client_focused(it->data)) return it->data;
2346         if ((ret = client_search_focus_tree(it->data))) return ret;
2347     }
2348     return NULL;
2349 }
2350
2351 ObClient *client_search_focus_tree_full(ObClient *self)
2352 {
2353     if (self->transient_for) {
2354         if (self->transient_for != OB_TRAN_GROUP) {
2355             return client_search_focus_tree_full(self->transient_for);
2356         } else {
2357             GSList *it;
2358
2359             for (it = self->group->members; it; it = g_slist_next(it)) {
2360                 if (it->data != self) {
2361                     ObClient *c = it->data;
2362
2363                     if (client_focused(c)) return c;
2364                     if ((c = client_search_focus_tree(it->data))) return c;
2365                 }
2366             }
2367         }
2368     }
2369
2370     /* this function checks the whole tree, the client_search_focus_tree
2371        does not, so we need to check this window */
2372     if (client_focused(self))
2373         return self;
2374     return client_search_focus_tree(self);
2375 }
2376
2377 static ObStackingLayer calc_layer(ObClient *self)
2378 {
2379     ObStackingLayer l;
2380
2381     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2382         l = OB_STACKING_LAYER_DESKTOP;
2383     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2384         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2385         else l = OB_STACKING_LAYER_ABOVE;
2386     }
2387     else if ((self->fullscreen ||
2388               /* No decorations and fills the monitor = oldskool fullscreen.
2389                  But not for maximized windows.
2390               */
2391               (self->decorations == 0 &&
2392                !(self->max_horz && self->max_vert) &&
2393                RECT_EQUAL(self->area,
2394                           *screen_physical_area_monitor
2395                           (client_monitor(self))))) &&
2396              (client_focused(self) || client_search_focus_tree(self)))
2397         l = OB_STACKING_LAYER_FULLSCREEN;
2398     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2399     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2400     else l = OB_STACKING_LAYER_NORMAL;
2401
2402     return l;
2403 }
2404
2405 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2406                                         ObStackingLayer min)
2407 {
2408     ObStackingLayer old, own;
2409     GSList *it;
2410
2411     old = self->layer;
2412     own = calc_layer(self);
2413     self->layer = MAX(own, min);
2414
2415     if (self->layer != old) {
2416         stacking_remove(CLIENT_AS_WINDOW(self));
2417         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2418     }
2419
2420     for (it = self->transients; it; it = g_slist_next(it))
2421         client_calc_layer_recursive(it->data, orig,
2422                                     self->layer);
2423 }
2424
2425 void client_calc_layer(ObClient *self)
2426 {
2427     ObClient *orig;
2428     GSList *it;
2429
2430     orig = self;
2431
2432     /* transients take on the layer of their parents */
2433     it = client_search_all_top_parents(self);
2434
2435     for (; it; it = g_slist_next(it))
2436         client_calc_layer_recursive(it->data, orig, 0);
2437 }
2438
2439 gboolean client_should_show(ObClient *self)
2440 {
2441     if (self->iconic)
2442         return FALSE;
2443     if (client_normal(self) && screen_showing_desktop)
2444         return FALSE;
2445     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2446         return TRUE;
2447
2448     return FALSE;
2449 }
2450
2451 gboolean client_show(ObClient *self)
2452 {
2453     gboolean show = FALSE;
2454
2455     if (client_should_show(self)) {
2456         frame_show(self->frame);
2457         show = TRUE;
2458
2459         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2460            it needs to be in IconicState. This includes when it is on another
2461            desktop!
2462         */
2463         client_change_wm_state(self);
2464     }
2465     return show;
2466 }
2467
2468 gboolean client_hide(ObClient *self)
2469 {
2470     gboolean hide = FALSE;
2471
2472     if (!client_should_show(self)) {
2473         if (self == focus_client) {
2474             /* if there is a grab going on, then we need to cancel it. if we
2475                move focus during the grab, applications will get
2476                NotifyWhileGrabbed events and ignore them !
2477
2478                actions should not rely on being able to move focus during an
2479                interactive grab.
2480             */
2481             event_cancel_all_key_grabs();
2482         }
2483
2484         frame_hide(self->frame);
2485         hide = TRUE;
2486
2487         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2488            it needs to be in IconicState. This includes when it is on another
2489            desktop!
2490         */
2491         client_change_wm_state(self);
2492     }
2493     return hide;
2494 }
2495
2496 void client_showhide(ObClient *self)
2497 {
2498     if (!client_show(self))
2499         client_hide(self);
2500 }
2501
2502 gboolean client_normal(ObClient *self) {
2503     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2504               self->type == OB_CLIENT_TYPE_DOCK ||
2505               self->type == OB_CLIENT_TYPE_SPLASH);
2506 }
2507
2508 gboolean client_helper(ObClient *self)
2509 {
2510     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2511             self->type == OB_CLIENT_TYPE_MENU ||
2512             self->type == OB_CLIENT_TYPE_TOOLBAR);
2513 }
2514
2515 gboolean client_mouse_focusable(ObClient *self)
2516 {
2517     return !(self->type == OB_CLIENT_TYPE_MENU ||
2518              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2519              self->type == OB_CLIENT_TYPE_SPLASH ||
2520              self->type == OB_CLIENT_TYPE_DOCK);
2521 }
2522
2523 gboolean client_enter_focusable(ObClient *self)
2524 {
2525     /* you can focus desktops but it shouldn't on enter */
2526     return (client_mouse_focusable(self) &&
2527             self->type != OB_CLIENT_TYPE_DESKTOP);
2528 }
2529
2530
2531 static void client_apply_startup_state(ObClient *self)
2532 {
2533     /* set the desktop hint, to make sure that it always exists */
2534     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2535
2536     /* these are in a carefully crafted order.. */
2537
2538     if (self->iconic) {
2539         self->iconic = FALSE;
2540         client_iconify(self, TRUE, FALSE, TRUE);
2541     }
2542     if (self->fullscreen) {
2543         self->fullscreen = FALSE;
2544         client_fullscreen(self, TRUE);
2545     }
2546     if (self->undecorated) {
2547         self->undecorated = FALSE;
2548         client_set_undecorated(self, TRUE);
2549     }
2550     if (self->shaded) {
2551         self->shaded = FALSE;
2552         client_shade(self, TRUE);
2553     }
2554     if (self->demands_attention) {
2555         self->demands_attention = FALSE;
2556         client_hilite(self, TRUE);
2557     }
2558
2559     if (self->max_vert && self->max_horz) {
2560         self->max_vert = self->max_horz = FALSE;
2561         client_maximize(self, TRUE, 0);
2562     } else if (self->max_vert) {
2563         self->max_vert = FALSE;
2564         client_maximize(self, TRUE, 2);
2565     } else if (self->max_horz) {
2566         self->max_horz = FALSE;
2567         client_maximize(self, TRUE, 1);
2568     }
2569
2570     /* nothing to do for the other states:
2571        skip_taskbar
2572        skip_pager
2573        modal
2574        above
2575        below
2576     */
2577 }
2578
2579 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2580 {
2581     /* these should be the current values. this is for when you're not moving,
2582        just resizing */
2583     g_assert(*x == self->area.x);
2584     g_assert(oldw == self->area.width);
2585
2586     /* horizontal */
2587     switch (self->gravity) {
2588     default:
2589     case NorthWestGravity:
2590     case WestGravity:
2591     case SouthWestGravity:
2592     case StaticGravity:
2593     case ForgetGravity:
2594         break;
2595     case NorthGravity:
2596     case CenterGravity:
2597     case SouthGravity:
2598         *x -= (neww - oldw) / 2;
2599         break;
2600     case NorthEastGravity:
2601     case EastGravity:
2602     case SouthEastGravity:
2603         *x -= neww - oldw;
2604         break;
2605     }
2606 }
2607
2608 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2609 {
2610     /* these should be the current values. this is for when you're not moving,
2611        just resizing */
2612     g_assert(*y == self->area.y);
2613     g_assert(oldh == self->area.height);
2614
2615     /* vertical */
2616     switch (self->gravity) {
2617     default:
2618     case NorthWestGravity:
2619     case NorthGravity:
2620     case NorthEastGravity:
2621     case StaticGravity:
2622     case ForgetGravity:
2623         break;
2624     case WestGravity:
2625     case CenterGravity:
2626     case EastGravity:
2627         *y -= (newh - oldh) / 2;
2628         break;
2629     case SouthWestGravity:
2630     case SouthGravity:
2631     case SouthEastGravity:
2632         *y -= newh - oldh;
2633         break;
2634     }
2635 }
2636
2637 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2638                           gint *logicalw, gint *logicalh,
2639                           gboolean user)
2640 {
2641     Rect desired_area = {*x, *y, *w, *h};
2642
2643     /* make the frame recalculate its dimentions n shit without changing
2644        anything visible for real, this way the constraints below can work with
2645        the updated frame dimensions. */
2646     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2647
2648     /* work within the prefered sizes given by the window */
2649     if (!(*w == self->area.width && *h == self->area.height)) {
2650         gint basew, baseh, minw, minh;
2651
2652         /* base size is substituted with min size if not specified */
2653         if (self->base_size.width || self->base_size.height) {
2654             basew = self->base_size.width;
2655             baseh = self->base_size.height;
2656         } else {
2657             basew = self->min_size.width;
2658             baseh = self->min_size.height;
2659         }
2660         /* min size is substituted with base size if not specified */
2661         if (self->min_size.width || self->min_size.height) {
2662             minw = self->min_size.width;
2663             minh = self->min_size.height;
2664         } else {
2665             minw = self->base_size.width;
2666             minh = self->base_size.height;
2667         }
2668
2669         /* if this is a user-requested resize, then check against min/max
2670            sizes */
2671
2672         /* smaller than min size or bigger than max size? */
2673         if (*w > self->max_size.width) *w = self->max_size.width;
2674         if (*w < minw) *w = minw;
2675         if (*h > self->max_size.height) *h = self->max_size.height;
2676         if (*h < minh) *h = minh;
2677
2678         *w -= basew;
2679         *h -= baseh;
2680
2681         /* keep to the increments */
2682         *w /= self->size_inc.width;
2683         *h /= self->size_inc.height;
2684
2685         /* you cannot resize to nothing */
2686         if (basew + *w < 1) *w = 1 - basew;
2687         if (baseh + *h < 1) *h = 1 - baseh;
2688
2689         /* save the logical size */
2690         *logicalw = self->size_inc.width > 1 ? *w : *w + basew;
2691         *logicalh = self->size_inc.height > 1 ? *h : *h + baseh;
2692
2693         *w *= self->size_inc.width;
2694         *h *= self->size_inc.height;
2695
2696         *w += basew;
2697         *h += baseh;
2698
2699         /* adjust the height to match the width for the aspect ratios.
2700            for this, min size is not substituted for base size ever. */
2701         *w -= self->base_size.width;
2702         *h -= self->base_size.height;
2703
2704         if (!self->fullscreen) {
2705             if (self->min_ratio)
2706                 if (*h * self->min_ratio > *w) {
2707                     *h = (gint)(*w / self->min_ratio);
2708
2709                     /* you cannot resize to nothing */
2710                     if (*h < 1) {
2711                         *h = 1;
2712                         *w = (gint)(*h * self->min_ratio);
2713                     }
2714                 }
2715             if (self->max_ratio)
2716                 if (*h * self->max_ratio < *w) {
2717                     *h = (gint)(*w / self->max_ratio);
2718
2719                     /* you cannot resize to nothing */
2720                     if (*h < 1) {
2721                         *h = 1;
2722                         *w = (gint)(*h * self->min_ratio);
2723                     }
2724                 }
2725         }
2726
2727         *w += self->base_size.width;
2728         *h += self->base_size.height;
2729     }
2730
2731     /* gets the frame's position */
2732     frame_client_gravity(self->frame, x, y, *w, *h);
2733
2734     /* these positions are frame positions, not client positions */
2735
2736     /* set the size and position if fullscreen */
2737     if (self->fullscreen) {
2738         Rect *a;
2739         guint i;
2740
2741         i = screen_find_monitor(&desired_area);
2742         a = screen_physical_area_monitor(i);
2743
2744         *x = a->x;
2745         *y = a->y;
2746         *w = a->width;
2747         *h = a->height;
2748
2749         user = FALSE; /* ignore if the client can't be moved/resized when it
2750                          is fullscreening */
2751     } else if (self->max_horz || self->max_vert) {
2752         Rect *a;
2753         guint i;
2754
2755         i = screen_find_monitor(&desired_area);
2756         a = screen_area_monitor(self->desktop, i);
2757
2758         /* set the size and position if maximized */
2759         if (self->max_horz) {
2760             *x = a->x;
2761             *w = a->width - self->frame->size.left - self->frame->size.right;
2762         }
2763         if (self->max_vert) {
2764             *y = a->y;
2765             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2766         }
2767
2768         user = FALSE; /* ignore if the client can't be moved/resized when it
2769                          is maximizing */
2770     }
2771
2772     /* gets the client's position */
2773     frame_frame_gravity(self->frame, x, y, *w, *h);
2774
2775     /* these override the above states! if you cant move you can't move! */
2776     if (user) {
2777         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2778             *x = self->area.x;
2779             *y = self->area.y;
2780         }
2781         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2782             *w = self->area.width;
2783             *h = self->area.height;
2784         }
2785     }
2786
2787     g_assert(*w > 0);
2788     g_assert(*h > 0);
2789 }
2790
2791
2792 void client_configure(ObClient *self, gint x, gint y, gint w, gint h, gint b,
2793                       gboolean user, gboolean final)
2794 {
2795     gint oldw, oldh;
2796     gboolean send_resize_client;
2797     gboolean moved = FALSE, resized = FALSE;
2798     gboolean fmoved, fresized;
2799     guint fdecor = self->frame->decorations;
2800     gboolean fhorz = self->frame->max_horz;
2801     gboolean fvert = self->frame->max_vert;
2802     gint logicalw, logicalh;
2803
2804     /* find the new x, y, width, and height (and logical size) */
2805     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2806
2807     /* set the logical size if things changed */
2808     if (!(w == self->area.width && h == self->area.height))
2809         SIZE_SET(self->logical_size, logicalw, logicalh);
2810
2811     /* figure out if we moved or resized or what */
2812     moved = x != self->area.x || y != self->area.y;
2813     resized = w != self->area.width || h != self->area.height ||
2814         b != self->border_width;
2815
2816     oldw = self->area.width;
2817     oldh = self->area.height;
2818     RECT_SET(self->area, x, y, w, h);
2819     self->border_width = b;
2820
2821     /* for app-requested resizes, always resize if 'resized' is true.
2822        for user-requested ones, only resize if final is true, or when
2823        resizing in redraw mode */
2824     send_resize_client = ((!user && resized) ||
2825                           (user && (final ||
2826                                     (resized && config_resize_redraw))));
2827
2828     /* if the client is enlarging, then resize the client before the frame */
2829     if (send_resize_client && (w > oldw || h > oldh)) {
2830         XWindowChanges changes;
2831         changes.x = -self->border_width;
2832         changes.y = -self->border_width;
2833         changes.width = MAX(w, oldw);
2834         changes.height = MAX(h, oldh);
2835         changes.border_width = self->border_width;
2836         XConfigureWindow(ob_display, self->window,
2837                          CWX|CWY|CWWidth|CWHeight|CWBorderWidth,
2838                          &changes);
2839         /* resize the plate to show the client padding color underneath */
2840         frame_adjust_client_area(self->frame);
2841     }
2842
2843     /* find the frame's dimensions and move/resize it */
2844     fmoved = moved;
2845     fresized = resized;
2846
2847     /* if decorations changed, then readjust everything for the frame */
2848     if (self->decorations != fdecor ||
2849         self->max_horz != fhorz || self->max_vert != fvert)
2850     {
2851         fmoved = fresized = TRUE;
2852     }
2853
2854     /* adjust the frame */
2855     if (fmoved || fresized)
2856         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2857
2858     if ((!user || (user && final)) && !resized)
2859     {
2860         XEvent event;
2861
2862         /* we have reset the client to 0 border width, so don't include
2863            it in these coords */
2864         POINT_SET(self->root_pos,
2865                   self->frame->area.x + self->frame->size.left -
2866                   self->border_width,
2867                   self->frame->area.y + self->frame->size.top -
2868                   self->border_width);
2869
2870         event.type = ConfigureNotify;
2871         event.xconfigure.display = ob_display;
2872         event.xconfigure.event = self->window;
2873         event.xconfigure.window = self->window;
2874
2875         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2876                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2877
2878         /* root window real coords */
2879         event.xconfigure.x = self->root_pos.x;
2880         event.xconfigure.y = self->root_pos.y;
2881         event.xconfigure.width = w;
2882         event.xconfigure.height = h;
2883         event.xconfigure.border_width = self->border_width;
2884         event.xconfigure.above = None;
2885         event.xconfigure.override_redirect = FALSE;
2886         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2887                    FALSE, StructureNotifyMask, &event);
2888     }
2889
2890     /* if the client is shrinking, then resize the frame before the client */
2891     if (send_resize_client && (w <= oldw && h <= oldh)) {
2892         /* resize the plate to show the client padding color underneath */
2893         frame_adjust_client_area(self->frame);
2894
2895         if (send_resize_client) {
2896             XWindowChanges changes;
2897             changes.x = -self->border_width;
2898             changes.y = -self->border_width;
2899             changes.width = w;
2900             changes.height = h;
2901             changes.border_width = self->border_width;
2902             XConfigureWindow(ob_display, self->window,
2903                              CWX|CWY|CWWidth|CWHeight|CWBorderWidth,
2904                              &changes);
2905         }
2906     }
2907
2908     XFlush(ob_display);
2909 }
2910
2911 void client_fullscreen(ObClient *self, gboolean fs)
2912 {
2913     gint x, y, w, h;
2914
2915     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2916         self->fullscreen == fs) return;                   /* already done */
2917
2918     self->fullscreen = fs;
2919     client_change_state(self); /* change the state hints on the client */
2920
2921     if (fs) {
2922         self->pre_fullscreen_area = self->area;
2923         /* if the window is maximized, its area isn't all that meaningful.
2924            save it's premax area instead. */
2925         if (self->max_horz) {
2926             self->pre_fullscreen_area.x = self->pre_max_area.x;
2927             self->pre_fullscreen_area.width = self->pre_max_area.width;
2928         }
2929         if (self->max_vert) {
2930             self->pre_fullscreen_area.y = self->pre_max_area.y;
2931             self->pre_fullscreen_area.height = self->pre_max_area.height;
2932         }
2933
2934         /* these will help configure_full figure out where to fullscreen
2935            the window */
2936         x = self->area.x;
2937         y = self->area.y;
2938         w = self->area.width;
2939         h = self->area.height;
2940     } else {
2941         g_assert(self->pre_fullscreen_area.width > 0 &&
2942                  self->pre_fullscreen_area.height > 0);
2943
2944         x = self->pre_fullscreen_area.x;
2945         y = self->pre_fullscreen_area.y;
2946         w = self->pre_fullscreen_area.width;
2947         h = self->pre_fullscreen_area.height;
2948         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
2949     }
2950
2951     client_setup_decor_and_functions(self);
2952
2953     client_move_resize(self, x, y, w, h);
2954
2955     /* and adjust our layer/stacking. do this after resizing the window,
2956        and applying decorations, because windows which fill the screen are
2957        considered "fullscreen" and it affects their layer */
2958     client_calc_layer(self);
2959
2960     if (fs) {
2961         /* try focus us when we go into fullscreen mode */
2962         client_focus(self);
2963     }
2964 }
2965
2966 static void client_iconify_recursive(ObClient *self,
2967                                      gboolean iconic, gboolean curdesk,
2968                                      gboolean hide_animation)
2969 {
2970     GSList *it;
2971     gboolean changed = FALSE;
2972
2973
2974     if (self->iconic != iconic) {
2975         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
2976                  self->window);
2977
2978         if (iconic) {
2979             /* don't let non-normal windows iconify along with their parents
2980                or whatever */
2981             if (client_normal(self)) {
2982                 self->iconic = iconic;
2983
2984                 /* update the focus lists.. iconic windows go to the bottom of
2985                    the list */
2986                 focus_order_to_bottom(self);
2987
2988                 changed = TRUE;
2989             }
2990         } else {
2991             self->iconic = iconic;
2992
2993             if (curdesk && self->desktop != screen_desktop &&
2994                 self->desktop != DESKTOP_ALL)
2995                 client_set_desktop(self, screen_desktop, FALSE);
2996
2997             /* this puts it after the current focused window */
2998             focus_order_remove(self);
2999             focus_order_add_new(self);
3000
3001             changed = TRUE;
3002         }
3003     }
3004
3005     if (changed) {
3006         client_change_state(self);
3007         if (config_animate_iconify && !hide_animation)
3008             frame_begin_iconify_animation(self->frame, iconic);
3009         /* do this after starting the animation so it doesn't flash */
3010         client_showhide(self);
3011     }
3012
3013     /* iconify all direct transients, and deiconify all transients
3014        (non-direct too) */
3015     for (it = self->transients; it; it = g_slist_next(it))
3016         if (it->data != self)
3017             if (client_is_direct_child(self, it->data) || !iconic)
3018                 client_iconify_recursive(it->data, iconic, curdesk,
3019                                          hide_animation);
3020 }
3021
3022 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3023                     gboolean hide_animation)
3024 {
3025     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3026         /* move up the transient chain as far as possible first */
3027         self = client_search_top_normal_parent(self);
3028         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3029     }
3030 }
3031
3032 void client_maximize(ObClient *self, gboolean max, gint dir)
3033 {
3034     gint x, y, w, h;
3035
3036     g_assert(dir == 0 || dir == 1 || dir == 2);
3037     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3038
3039     /* check if already done */
3040     if (max) {
3041         if (dir == 0 && self->max_horz && self->max_vert) return;
3042         if (dir == 1 && self->max_horz) return;
3043         if (dir == 2 && self->max_vert) return;
3044     } else {
3045         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3046         if (dir == 1 && !self->max_horz) return;
3047         if (dir == 2 && !self->max_vert) return;
3048     }
3049
3050     /* these will help configure_full figure out which screen to fill with
3051        the window */
3052     x = self->area.x;
3053     y = self->area.y;
3054     w = self->area.width;
3055     h = self->area.height;
3056
3057     if (max) {
3058         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3059             RECT_SET(self->pre_max_area,
3060                      self->area.x, self->pre_max_area.y,
3061                      self->area.width, self->pre_max_area.height);
3062         }
3063         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3064             RECT_SET(self->pre_max_area,
3065                      self->pre_max_area.x, self->area.y,
3066                      self->pre_max_area.width, self->area.height);
3067         }
3068     } else {
3069         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3070             g_assert(self->pre_max_area.width > 0);
3071
3072             x = self->pre_max_area.x;
3073             w = self->pre_max_area.width;
3074
3075             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3076                      0, self->pre_max_area.height);
3077         }
3078         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3079             g_assert(self->pre_max_area.height > 0);
3080
3081             y = self->pre_max_area.y;
3082             h = self->pre_max_area.height;
3083
3084             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3085                      self->pre_max_area.width, 0);
3086         }
3087     }
3088
3089     if (dir == 0 || dir == 1) /* horz */
3090         self->max_horz = max;
3091     if (dir == 0 || dir == 2) /* vert */
3092         self->max_vert = max;
3093
3094     client_change_state(self); /* change the state hints on the client */
3095
3096     client_setup_decor_and_functions(self);
3097
3098     client_move_resize(self, x, y, w, h);
3099 }
3100
3101 void client_shade(ObClient *self, gboolean shade)
3102 {
3103     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3104          shade) ||                         /* can't shade */
3105         self->shaded == shade) return;     /* already done */
3106
3107     self->shaded = shade;
3108     client_change_state(self);
3109     client_change_wm_state(self); /* the window is being hidden/shown */
3110     /* resize the frame to just the titlebar */
3111     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3112 }
3113
3114 void client_close(ObClient *self)
3115 {
3116     XEvent ce;
3117
3118     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3119
3120     /* in the case that the client provides no means to requesting that it
3121        close, we just kill it */
3122     if (!self->delete_window)
3123         client_kill(self);
3124
3125     /*
3126       XXX: itd be cool to do timeouts and shit here for killing the client's
3127       process off
3128       like... if the window is around after 5 seconds, then the close button
3129       turns a nice red, and if this function is called again, the client is
3130       explicitly killed.
3131     */
3132
3133     ce.xclient.type = ClientMessage;
3134     ce.xclient.message_type =  prop_atoms.wm_protocols;
3135     ce.xclient.display = ob_display;
3136     ce.xclient.window = self->window;
3137     ce.xclient.format = 32;
3138     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3139     ce.xclient.data.l[1] = event_curtime;
3140     ce.xclient.data.l[2] = 0l;
3141     ce.xclient.data.l[3] = 0l;
3142     ce.xclient.data.l[4] = 0l;
3143     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3144 }
3145
3146 void client_kill(ObClient *self)
3147 {
3148     XKillClient(ob_display, self->window);
3149 }
3150
3151 void client_hilite(ObClient *self, gboolean hilite)
3152 {
3153     if (self->demands_attention == hilite)
3154         return; /* no change */
3155
3156     /* don't allow focused windows to hilite */
3157     self->demands_attention = hilite && !client_focused(self);
3158     if (self->frame != NULL) { /* if we're mapping, just set the state */
3159         if (self->demands_attention)
3160             frame_flash_start(self->frame);
3161         else
3162             frame_flash_stop(self->frame);
3163         client_change_state(self);
3164     }
3165 }
3166
3167 void client_set_desktop_recursive(ObClient *self,
3168                                   guint target,
3169                                   gboolean donthide)
3170 {
3171     guint old;
3172     GSList *it;
3173
3174     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3175
3176         ob_debug("Setting desktop %u\n", target+1);
3177
3178         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3179
3180         old = self->desktop;
3181         self->desktop = target;
3182         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3183         /* the frame can display the current desktop state */
3184         frame_adjust_state(self->frame);
3185         /* 'move' the window to the new desktop */
3186         if (!donthide)
3187             client_showhide(self);
3188         /* raise if it was not already on the desktop */
3189         if (old != DESKTOP_ALL)
3190             stacking_raise(CLIENT_AS_WINDOW(self));
3191         if (STRUT_EXISTS(self->strut))
3192             screen_update_areas();
3193     }
3194
3195     /* move all transients */
3196     for (it = self->transients; it; it = g_slist_next(it))
3197         if (it->data != self)
3198             if (client_is_direct_child(self, it->data))
3199                 client_set_desktop_recursive(it->data, target, donthide);
3200 }
3201
3202 void client_set_desktop(ObClient *self, guint target,
3203                         gboolean donthide)
3204 {
3205     self = client_search_top_normal_parent(self);
3206     client_set_desktop_recursive(self, target, donthide);
3207 }
3208
3209 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3210 {
3211     while (child != parent &&
3212            child->transient_for && child->transient_for != OB_TRAN_GROUP)
3213         child = child->transient_for;
3214     return child == parent;
3215 }
3216
3217 ObClient *client_search_modal_child(ObClient *self)
3218 {
3219     GSList *it;
3220     ObClient *ret;
3221
3222     for (it = self->transients; it; it = g_slist_next(it)) {
3223         ObClient *c = it->data;
3224         if ((ret = client_search_modal_child(c))) return ret;
3225         if (c->modal) return c;
3226     }
3227     return NULL;
3228 }
3229
3230 gboolean client_validate(ObClient *self)
3231 {
3232     XEvent e;
3233
3234     XSync(ob_display, FALSE); /* get all events on the server */
3235
3236     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3237         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3238         XPutBackEvent(ob_display, &e);
3239         return FALSE;
3240     }
3241
3242     return TRUE;
3243 }
3244
3245 void client_set_wm_state(ObClient *self, glong state)
3246 {
3247     if (state == self->wmstate) return; /* no change */
3248
3249     switch (state) {
3250     case IconicState:
3251         client_iconify(self, TRUE, TRUE, FALSE);
3252         break;
3253     case NormalState:
3254         client_iconify(self, FALSE, TRUE, FALSE);
3255         break;
3256     }
3257 }
3258
3259 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3260 {
3261     gboolean shaded = self->shaded;
3262     gboolean fullscreen = self->fullscreen;
3263     gboolean undecorated = self->undecorated;
3264     gboolean max_horz = self->max_horz;
3265     gboolean max_vert = self->max_vert;
3266     gboolean modal = self->modal;
3267     gboolean iconic = self->iconic;
3268     gboolean demands_attention = self->demands_attention;
3269     gboolean above = self->above;
3270     gboolean below = self->below;
3271     gint i;
3272
3273     if (!(action == prop_atoms.net_wm_state_add ||
3274           action == prop_atoms.net_wm_state_remove ||
3275           action == prop_atoms.net_wm_state_toggle))
3276         /* an invalid action was passed to the client message, ignore it */
3277         return;
3278
3279     for (i = 0; i < 2; ++i) {
3280         Atom state = i == 0 ? data1 : data2;
3281
3282         if (!state) continue;
3283
3284         /* if toggling, then pick whether we're adding or removing */
3285         if (action == prop_atoms.net_wm_state_toggle) {
3286             if (state == prop_atoms.net_wm_state_modal)
3287                 action = modal ? prop_atoms.net_wm_state_remove :
3288                     prop_atoms.net_wm_state_add;
3289             else if (state == prop_atoms.net_wm_state_maximized_vert)
3290                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3291                     prop_atoms.net_wm_state_add;
3292             else if (state == prop_atoms.net_wm_state_maximized_horz)
3293                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3294                     prop_atoms.net_wm_state_add;
3295             else if (state == prop_atoms.net_wm_state_shaded)
3296                 action = shaded ? prop_atoms.net_wm_state_remove :
3297                     prop_atoms.net_wm_state_add;
3298             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3299                 action = self->skip_taskbar ?
3300                     prop_atoms.net_wm_state_remove :
3301                     prop_atoms.net_wm_state_add;
3302             else if (state == prop_atoms.net_wm_state_skip_pager)
3303                 action = self->skip_pager ?
3304                     prop_atoms.net_wm_state_remove :
3305                     prop_atoms.net_wm_state_add;
3306             else if (state == prop_atoms.net_wm_state_hidden)
3307                 action = self->iconic ?
3308                     prop_atoms.net_wm_state_remove :
3309                     prop_atoms.net_wm_state_add;
3310             else if (state == prop_atoms.net_wm_state_fullscreen)
3311                 action = fullscreen ?
3312                     prop_atoms.net_wm_state_remove :
3313                     prop_atoms.net_wm_state_add;
3314             else if (state == prop_atoms.net_wm_state_above)
3315                 action = self->above ? prop_atoms.net_wm_state_remove :
3316                     prop_atoms.net_wm_state_add;
3317             else if (state == prop_atoms.net_wm_state_below)
3318                 action = self->below ? prop_atoms.net_wm_state_remove :
3319                     prop_atoms.net_wm_state_add;
3320             else if (state == prop_atoms.net_wm_state_demands_attention)
3321                 action = self->demands_attention ?
3322                     prop_atoms.net_wm_state_remove :
3323                     prop_atoms.net_wm_state_add;
3324             else if (state == prop_atoms.ob_wm_state_undecorated)
3325                 action = undecorated ? prop_atoms.net_wm_state_remove :
3326                     prop_atoms.net_wm_state_add;
3327         }
3328
3329         if (action == prop_atoms.net_wm_state_add) {
3330             if (state == prop_atoms.net_wm_state_modal) {
3331                 modal = TRUE;
3332             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3333                 max_vert = TRUE;
3334             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3335                 max_horz = TRUE;
3336             } else if (state == prop_atoms.net_wm_state_shaded) {
3337                 shaded = TRUE;
3338             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3339                 self->skip_taskbar = TRUE;
3340             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3341                 self->skip_pager = TRUE;
3342             } else if (state == prop_atoms.net_wm_state_hidden) {
3343                 iconic = TRUE;
3344             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3345                 fullscreen = TRUE;
3346             } else if (state == prop_atoms.net_wm_state_above) {
3347                 above = TRUE;
3348                 below = FALSE;
3349             } else if (state == prop_atoms.net_wm_state_below) {
3350                 above = FALSE;
3351                 below = TRUE;
3352             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3353                 demands_attention = TRUE;
3354             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3355                 undecorated = TRUE;
3356             }
3357
3358         } else { /* action == prop_atoms.net_wm_state_remove */
3359             if (state == prop_atoms.net_wm_state_modal) {
3360                 modal = FALSE;
3361             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3362                 max_vert = FALSE;
3363             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3364                 max_horz = FALSE;
3365             } else if (state == prop_atoms.net_wm_state_shaded) {
3366                 shaded = FALSE;
3367             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3368                 self->skip_taskbar = FALSE;
3369             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3370                 self->skip_pager = FALSE;
3371             } else if (state == prop_atoms.net_wm_state_hidden) {
3372                 iconic = FALSE;
3373             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3374                 fullscreen = FALSE;
3375             } else if (state == prop_atoms.net_wm_state_above) {
3376                 above = FALSE;
3377             } else if (state == prop_atoms.net_wm_state_below) {
3378                 below = FALSE;
3379             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3380                 demands_attention = FALSE;
3381             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3382                 undecorated = FALSE;
3383             }
3384         }
3385     }
3386
3387     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3388         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3389             /* toggling both */
3390             if (max_horz == max_vert) { /* both going the same way */
3391                 client_maximize(self, max_horz, 0);
3392             } else {
3393                 client_maximize(self, max_horz, 1);
3394                 client_maximize(self, max_vert, 2);
3395             }
3396         } else {
3397             /* toggling one */
3398             if (max_horz != self->max_horz)
3399                 client_maximize(self, max_horz, 1);
3400             else
3401                 client_maximize(self, max_vert, 2);
3402         }
3403     }
3404     /* change fullscreen state before shading, as it will affect if the window
3405        can shade or not */
3406     if (fullscreen != self->fullscreen)
3407         client_fullscreen(self, fullscreen);
3408     if (shaded != self->shaded)
3409         client_shade(self, shaded);
3410     if (undecorated != self->undecorated)
3411         client_set_undecorated(self, undecorated);
3412     if (above != self->above || below != self->below) {
3413         self->above = above;
3414         self->below = below;
3415         client_calc_layer(self);
3416     }
3417
3418     if (modal != self->modal) {
3419         self->modal = modal;
3420         /* when a window changes modality, then its stacking order with its
3421            transients needs to change */
3422         stacking_raise(CLIENT_AS_WINDOW(self));
3423
3424         /* it also may get focused. if something is focused that shouldn't
3425            be focused anymore, then move the focus */
3426         if (focus_client && client_focus_target(focus_client) != focus_client)
3427             client_focus(focus_client);
3428     }
3429
3430     if (iconic != self->iconic)
3431         client_iconify(self, iconic, FALSE, FALSE);
3432
3433     if (demands_attention != self->demands_attention)
3434         client_hilite(self, demands_attention);
3435
3436     client_change_state(self); /* change the hint to reflect these changes */
3437 }
3438
3439 ObClient *client_focus_target(ObClient *self)
3440 {
3441     ObClient *child = NULL;
3442
3443     child = client_search_modal_child(self);
3444     if (child) return child;
3445     return self;
3446 }
3447
3448 gboolean client_can_focus(ObClient *self)
3449 {
3450     /* choose the correct target */
3451     self = client_focus_target(self);
3452
3453     if (!self->frame->visible)
3454         return FALSE;
3455
3456     if (!(self->can_focus || self->focus_notify))
3457         return FALSE;
3458
3459     return TRUE;
3460 }
3461
3462 gboolean client_focus(ObClient *self)
3463 {
3464     /* we might not focus this window, so if we have modal children which would
3465        be focused instead, bring them to this desktop */
3466     client_bring_modal_windows(self);
3467
3468     /* choose the correct target */
3469     self = client_focus_target(self);
3470
3471     if (!client_can_focus(self)) {
3472         if (!self->frame->visible) {
3473             /* update the focus lists */
3474             focus_order_to_top(self);
3475         }
3476         return FALSE;
3477     }
3478
3479     ob_debug_type(OB_DEBUG_FOCUS,
3480                   "Focusing client \"%s\" (0x%x) at time %u\n",
3481                   self->title, self->window, event_curtime);
3482
3483     /* if there is a grab going on, then we need to cancel it. if we move
3484        focus during the grab, applications will get NotifyWhileGrabbed events
3485        and ignore them !
3486
3487        actions should not rely on being able to move focus during an
3488        interactive grab.
3489     */
3490     event_cancel_all_key_grabs();
3491
3492     xerror_set_ignore(TRUE);
3493     xerror_occured = FALSE;
3494
3495     if (self->can_focus) {
3496         /* This can cause a BadMatch error with CurrentTime, or if an app
3497            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3498         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3499                        event_curtime);
3500     }
3501
3502     if (self->focus_notify) {
3503         XEvent ce;
3504         ce.xclient.type = ClientMessage;
3505         ce.xclient.message_type = prop_atoms.wm_protocols;
3506         ce.xclient.display = ob_display;
3507         ce.xclient.window = self->window;
3508         ce.xclient.format = 32;
3509         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3510         ce.xclient.data.l[1] = event_curtime;
3511         ce.xclient.data.l[2] = 0l;
3512         ce.xclient.data.l[3] = 0l;
3513         ce.xclient.data.l[4] = 0l;
3514         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3515     }
3516
3517     xerror_set_ignore(FALSE);
3518
3519     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3520     return !xerror_occured;
3521 }
3522
3523 /*! Present the client to the user.
3524   @param raise If the client should be raised or not. You should only set
3525                raise to false if you don't care if the window is completely
3526                hidden.
3527 */
3528 static void client_present(ObClient *self, gboolean here, gboolean raise)
3529 {
3530     /* if using focus_delay, stop the timer now so that focus doesn't
3531        go moving on us */
3532     event_halt_focus_delay();
3533
3534     if (client_normal(self) && screen_showing_desktop)
3535         screen_show_desktop(FALSE, self);
3536     if (self->iconic)
3537         client_iconify(self, FALSE, here, FALSE);
3538     if (self->desktop != DESKTOP_ALL &&
3539         self->desktop != screen_desktop)
3540     {
3541         if (here)
3542             client_set_desktop(self, screen_desktop, FALSE);
3543         else
3544             screen_set_desktop(self->desktop, FALSE);
3545     } else if (!self->frame->visible)
3546         /* if its not visible for other reasons, then don't mess
3547            with it */
3548         return;
3549     if (self->shaded)
3550         client_shade(self, FALSE);
3551     if (raise)
3552         stacking_raise(CLIENT_AS_WINDOW(self));
3553
3554     client_focus(self);
3555 }
3556
3557 void client_activate(ObClient *self, gboolean here, gboolean user)
3558 {
3559     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3560     gboolean allow = FALSE;
3561
3562     /* if the request came from the user, or if nothing is focused, then grant
3563        the request.
3564        if the currently focused app doesn't set a user_time, then it can't
3565        benefit from any focus stealing prevention.
3566     */
3567     if (user || !focus_client || !last_time)
3568         allow = TRUE;
3569     /* otherwise, if they didn't give a time stamp or if it is too old, they
3570        don't get focus */
3571     else
3572         allow = event_curtime && event_time_after(event_curtime, last_time);
3573
3574     ob_debug_type(OB_DEBUG_FOCUS,
3575                   "Want to activate window 0x%x with time %u (last time %u), "
3576                   "source=%s allowing? %d\n",
3577                   self->window, event_curtime, last_time,
3578                   (user ? "user" : "application"), allow);
3579
3580     if (allow)
3581         client_present(self, here, TRUE);
3582     else
3583         /* don't focus it but tell the user it wants attention */
3584         client_hilite(self, TRUE);
3585 }
3586
3587 static void client_bring_windows_recursive(ObClient *self,
3588                                            guint desktop,
3589                                            gboolean helpers,
3590                                            gboolean modals)
3591 {
3592     GSList *it;
3593
3594     for (it = self->transients; it; it = g_slist_next(it))
3595         client_bring_windows_recursive(it->data, desktop, helpers, modals);
3596
3597     if (((helpers && client_helper(self)) ||
3598          (modals && self->modal))&&
3599         self->desktop != desktop && self->desktop != DESKTOP_ALL)
3600     {
3601         client_set_desktop(self, desktop, FALSE);
3602     }
3603 }
3604
3605 void client_bring_helper_windows(ObClient *self)
3606 {
3607     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE);
3608 }
3609
3610 void client_bring_modal_windows(ObClient *self)
3611 {
3612     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE);
3613 }
3614
3615 gboolean client_focused(ObClient *self)
3616 {
3617     return self == focus_client;
3618 }
3619
3620 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3621 {
3622     guint i;
3623     gulong min_diff, min_i;
3624
3625     if (!self->nicons) {
3626         ObClientIcon *parent = NULL;
3627
3628         if (self->transient_for) {
3629             if (self->transient_for != OB_TRAN_GROUP)
3630                 parent = client_icon_recursive(self->transient_for, w, h);
3631             else {
3632                 GSList *it;
3633                 for (it = self->group->members; it; it = g_slist_next(it)) {
3634                     ObClient *c = it->data;
3635                     if (c != self && !c->transient_for) {
3636                         if ((parent = client_icon_recursive(c, w, h)))
3637                             break;
3638                     }
3639                 }
3640             }
3641         }
3642
3643         return parent;
3644     }
3645
3646     /* some kind of crappy approximation to find the icon closest in size to
3647        what we requested, but icons are generally all the same ratio as
3648        eachother so it's good enough. */
3649
3650     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3651     min_i = 0;
3652
3653     for (i = 1; i < self->nicons; ++i) {
3654         gulong diff;
3655
3656         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3657         if (diff < min_diff) {
3658             min_diff = diff;
3659             min_i = i;
3660         }
3661     }
3662     return &self->icons[min_i];
3663 }
3664
3665 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3666 {
3667     ObClientIcon *ret;
3668     static ObClientIcon deficon;
3669
3670     if (!(ret = client_icon_recursive(self, w, h))) {
3671         deficon.width = deficon.height = 48;
3672         deficon.data = ob_rr_theme->def_win_icon;
3673         ret = &deficon;
3674     }
3675     return ret;
3676 }
3677
3678 void client_set_layer(ObClient *self, gint layer)
3679 {
3680     if (layer < 0) {
3681         self->below = TRUE;
3682         self->above = FALSE;
3683     } else if (layer == 0) {
3684         self->below = self->above = FALSE;
3685     } else {
3686         self->below = FALSE;
3687         self->above = TRUE;
3688     }
3689     client_calc_layer(self);
3690     client_change_state(self); /* reflect this in the state hints */
3691 }
3692
3693 void client_set_undecorated(ObClient *self, gboolean undecorated)
3694 {
3695     if (self->undecorated != undecorated &&
3696         /* don't let it undecorate if the function is missing, but let
3697            it redecorate */
3698         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3699     {
3700         self->undecorated = undecorated;
3701         client_setup_decor_and_functions(self);
3702         client_reconfigure(self); /* show the lack of decorations */
3703         client_change_state(self); /* reflect this in the state hints */
3704     }
3705 }
3706
3707 guint client_monitor(ObClient *self)
3708 {
3709     return screen_find_monitor(&self->frame->area);
3710 }
3711
3712 ObClient *client_search_top_normal_parent(ObClient *self)
3713 {
3714     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3715            client_normal(self->transient_for))
3716         self = self->transient_for;
3717     return self;
3718 }
3719
3720 static GSList *client_search_all_top_parents_internal(ObClient *self,
3721                                                       gboolean bylayer,
3722                                                       ObStackingLayer layer)
3723 {
3724     GSList *ret = NULL;
3725
3726     /* move up the direct transient chain as far as possible */
3727     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3728            (!bylayer || self->transient_for->layer == layer) &&
3729            client_normal(self->transient_for))
3730         self = self->transient_for;
3731
3732     if (!self->transient_for)
3733         ret = g_slist_prepend(ret, self);
3734     else {
3735             GSList *it;
3736
3737             g_assert(self->group);
3738
3739             for (it = self->group->members; it; it = g_slist_next(it)) {
3740                 ObClient *c = it->data;
3741
3742                 if (!c->transient_for && client_normal(c) &&
3743                     (!bylayer || c->layer == layer))
3744                 {
3745                     ret = g_slist_prepend(ret, c);
3746                 }
3747             }
3748
3749             if (ret == NULL) /* no group parents */
3750                 ret = g_slist_prepend(ret, self);
3751     }
3752
3753     return ret;
3754 }
3755
3756 GSList *client_search_all_top_parents(ObClient *self)
3757 {
3758     return client_search_all_top_parents_internal(self, FALSE, 0);
3759 }
3760
3761 GSList *client_search_all_top_parents_layer(ObClient *self)
3762 {
3763     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3764 }
3765
3766 ObClient *client_search_focus_parent(ObClient *self)
3767 {
3768     if (self->transient_for) {
3769         if (self->transient_for != OB_TRAN_GROUP) {
3770             if (client_focused(self->transient_for))
3771                 return self->transient_for;
3772         } else {
3773             GSList *it;
3774
3775             for (it = self->group->members; it; it = g_slist_next(it)) {
3776                 ObClient *c = it->data;
3777
3778                 /* checking transient_for prevents infinate loops! */
3779                 if (c != self && !c->transient_for)
3780                     if (client_focused(c))
3781                         return c;
3782             }
3783         }
3784     }
3785
3786     return NULL;
3787 }
3788
3789 ObClient *client_search_parent(ObClient *self, ObClient *search)
3790 {
3791     if (self->transient_for) {
3792         if (self->transient_for != OB_TRAN_GROUP) {
3793             if (self->transient_for == search)
3794                 return search;
3795         } else {
3796             GSList *it;
3797
3798             for (it = self->group->members; it; it = g_slist_next(it)) {
3799                 ObClient *c = it->data;
3800
3801                 /* checking transient_for prevents infinate loops! */
3802                 if (c != self && !c->transient_for)
3803                     if (c == search)
3804                         return search;
3805             }
3806         }
3807     }
3808
3809     return NULL;
3810 }
3811
3812 ObClient *client_search_transient(ObClient *self, ObClient *search)
3813 {
3814     GSList *sit;
3815
3816     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3817         if (sit->data == search)
3818             return search;
3819         if (client_search_transient(sit->data, search))
3820             return search;
3821     }
3822     return NULL;
3823 }
3824
3825 #define WANT_EDGE(cur, c) \
3826             if(cur == c)                                                      \
3827                 continue;                                                     \
3828             if(!client_normal(cur))                                           \
3829                 continue;                                                     \
3830             if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL) \
3831                 continue;                                                     \
3832             if(cur->iconic)                                                   \
3833                 continue;
3834
3835 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3836             if ((his_edge_start >= my_edge_start && \
3837                  his_edge_start <= my_edge_end) ||  \
3838                 (my_edge_start >= his_edge_start && \
3839                  my_edge_start <= his_edge_end))    \
3840                 dest = his_offset;
3841
3842 /* finds the nearest edge in the given direction from the current client
3843  * note to self: the edge is the -frame- edge (the actual one), not the
3844  * client edge.
3845  */
3846 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3847 {
3848     gint dest, monitor_dest;
3849     gint my_edge_start, my_edge_end, my_offset;
3850     GList *it;
3851     Rect *a, *monitor;
3852
3853     if(!client_list)
3854         return -1;
3855
3856     a = screen_area(c->desktop);
3857     monitor = screen_area_monitor(c->desktop, client_monitor(c));
3858
3859     switch(dir) {
3860     case OB_DIRECTION_NORTH:
3861         my_edge_start = c->frame->area.x;
3862         my_edge_end = c->frame->area.x + c->frame->area.width;
3863         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3864
3865         /* default: top of screen */
3866         dest = a->y + (hang ? c->frame->area.height : 0);
3867         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3868         /* if the monitor edge comes before the screen edge, */
3869         /* use that as the destination instead. (For xinerama) */
3870         if (monitor_dest != dest && my_offset > monitor_dest)
3871             dest = monitor_dest;
3872
3873         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3874             gint his_edge_start, his_edge_end, his_offset;
3875             ObClient *cur = it->data;
3876
3877             WANT_EDGE(cur, c)
3878
3879             his_edge_start = cur->frame->area.x;
3880             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3881             his_offset = cur->frame->area.y +
3882                          (hang ? 0 : cur->frame->area.height);
3883
3884             if(his_offset + 1 > my_offset)
3885                 continue;
3886
3887             if(his_offset < dest)
3888                 continue;
3889
3890             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3891         }
3892         break;
3893     case OB_DIRECTION_SOUTH:
3894         my_edge_start = c->frame->area.x;
3895         my_edge_end = c->frame->area.x + c->frame->area.width;
3896         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3897
3898         /* default: bottom of screen */
3899         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3900         monitor_dest = monitor->y + monitor->height -
3901                        (hang ? c->frame->area.height : 0);
3902         /* if the monitor edge comes before the screen edge, */
3903         /* use that as the destination instead. (For xinerama) */
3904         if (monitor_dest != dest && my_offset < monitor_dest)
3905             dest = monitor_dest;
3906
3907         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3908             gint his_edge_start, his_edge_end, his_offset;
3909             ObClient *cur = it->data;
3910
3911             WANT_EDGE(cur, c)
3912
3913             his_edge_start = cur->frame->area.x;
3914             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3915             his_offset = cur->frame->area.y +
3916                          (hang ? cur->frame->area.height : 0);
3917
3918
3919             if(his_offset - 1 < my_offset)
3920                 continue;
3921
3922             if(his_offset > dest)
3923                 continue;
3924
3925             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3926         }
3927         break;
3928     case OB_DIRECTION_WEST:
3929         my_edge_start = c->frame->area.y;
3930         my_edge_end = c->frame->area.y + c->frame->area.height;
3931         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3932
3933         /* default: leftmost egde of screen */
3934         dest = a->x + (hang ? c->frame->area.width : 0);
3935         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3936         /* if the monitor edge comes before the screen edge, */
3937         /* use that as the destination instead. (For xinerama) */
3938         if (monitor_dest != dest && my_offset > monitor_dest)
3939             dest = monitor_dest;
3940
3941         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3942             gint his_edge_start, his_edge_end, his_offset;
3943             ObClient *cur = it->data;
3944
3945             WANT_EDGE(cur, c)
3946
3947             his_edge_start = cur->frame->area.y;
3948             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3949             his_offset = cur->frame->area.x +
3950                          (hang ? 0 : cur->frame->area.width);
3951
3952             if(his_offset + 1 > my_offset)
3953                 continue;
3954
3955             if(his_offset < dest)
3956                 continue;
3957
3958             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3959         }
3960        break;
3961     case OB_DIRECTION_EAST:
3962         my_edge_start = c->frame->area.y;
3963         my_edge_end = c->frame->area.y + c->frame->area.height;
3964         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3965
3966         /* default: rightmost edge of screen */
3967         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3968         monitor_dest = monitor->x + monitor->width -
3969                        (hang ? c->frame->area.width : 0);
3970         /* if the monitor edge comes before the screen edge, */
3971         /* use that as the destination instead. (For xinerama) */
3972         if (monitor_dest != dest && my_offset < monitor_dest)
3973             dest = monitor_dest;
3974
3975         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3976             gint his_edge_start, his_edge_end, his_offset;
3977             ObClient *cur = it->data;
3978
3979             WANT_EDGE(cur, c)
3980
3981             his_edge_start = cur->frame->area.y;
3982             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3983             his_offset = cur->frame->area.x +
3984                          (hang ? cur->frame->area.width : 0);
3985
3986             if(his_offset - 1 < my_offset)
3987                 continue;
3988
3989             if(his_offset > dest)
3990                 continue;
3991
3992             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3993         }
3994         break;
3995     case OB_DIRECTION_NORTHEAST:
3996     case OB_DIRECTION_SOUTHEAST:
3997     case OB_DIRECTION_NORTHWEST:
3998     case OB_DIRECTION_SOUTHWEST:
3999         /* not implemented */
4000     default:
4001         g_assert_not_reached();
4002         dest = 0; /* suppress warning */
4003     }
4004     return dest;
4005 }
4006
4007 ObClient* client_under_pointer()
4008 {
4009     gint x, y;
4010     GList *it;
4011     ObClient *ret = NULL;
4012
4013     if (screen_pointer_pos(&x, &y)) {
4014         for (it = stacking_list; it; it = g_list_next(it)) {
4015             if (WINDOW_IS_CLIENT(it->data)) {
4016                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4017                 if (c->frame->visible &&
4018                     /* ignore all animating windows */
4019                     !frame_iconify_animating(c->frame) &&
4020                     RECT_CONTAINS(c->frame->area, x, y))
4021                 {
4022                     ret = c;
4023                     break;
4024                 }
4025             }
4026         }
4027     }
4028     return ret;
4029 }
4030
4031 gboolean client_has_group_siblings(ObClient *self)
4032 {
4033     return self->group && self->group->members->next;
4034 }