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, FALSE);
 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     */
 445     client_apply_startup_state(self);
 446
 447     /* move the client to its placed position, or it it's already there,
 448        generate a ConfigureNotify telling the client where it is.
 449
 450        do this after adjusting the frame. otherwise it gets all weird and
 451        clients don't work right
 452
 453        also do this after applying the startup state so maximize and fullscreen
 454        will get the right sizes and positions if the client is starting with
 455        those states
 456     */
 457     client_configure(self, placex, placey,
 458                      self->area.width, self->area.height,
 459                      self->border_width,
 460                      FALSE, TRUE);
 461
 462
 463     if (activate) {
 464         guint32 last_time = focus_client ?
 465             focus_client->user_time : CurrentTime;
 466
 467         /* This is focus stealing prevention */
 468         ob_debug_type(OB_DEBUG_FOCUS,
 469                       "Want to focus new window 0x%x with time %u "
 470                       "(last time %u)\n",
 471                       self->window, self->user_time, last_time);
 472
 473         /* if it's on another desktop */
 474         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 475             && /* the timestamp is from before you changed desktops */
 476             self->user_time && screen_desktop_user_time &&
 477             !event_time_after(self->user_time, screen_desktop_user_time))
 478         {
 479             activate = FALSE;
 480             ob_debug_type(OB_DEBUG_FOCUS,
 481                           "Not focusing the window because its on another "
 482                           "desktop\n");
 483         }
 484         /* If something is focused, and it's not our relative... */
 485         else if (focus_client && client_search_focus_tree_full(self) == NULL)
 486         {
 487             /* If time stamp is old, don't steal focus */
 488             if (self->user_time && last_time &&
 489                 !event_time_after(self->user_time, last_time))
 490             {
 491                 activate = FALSE;
 492                 ob_debug_type(OB_DEBUG_FOCUS,
 493                               "Not focusing the window because the time is "
 494                               "too old\n");
 495             }
 496             /* If its a transient (and parents aren't focused) and the time
 497                is ambiguous (either the current focus target doesn't have
 498                a timestamp, or they are the same (we probably inherited it
 499                from them) */
 500             else if (client_has_parent(self) &&
 501                      (!last_time || self->user_time == last_time))
 502             {
 503                 activate = FALSE;
 504                 ob_debug_type(OB_DEBUG_FOCUS,
 505                               "Not focusing the window because it is a "
 506                               "transient, and the time is very ambiguous\n");
 507             }
 508             /* Don't steal focus from globally active clients.
 509                I stole this idea from KWin. It seems nice.
 510              */
 511             else if (!(focus_client->can_focus ||
 512                        focus_client->focus_notify))
 513             {
 514                 activate = FALSE;
 515                 ob_debug_type(OB_DEBUG_FOCUS,
 516                               "Not focusing the window because a globally "
 517                               "active client has focus\n");
 518             }
 519             /* Don't move focus if it's not going to go to this window
 520                anyway */
 521             else if (client_focus_target(self) != self) {
 522                 activate = FALSE;
 523                 ob_debug_type(OB_DEBUG_FOCUS,
 524                               "Not focusing the window because another window "
 525                               "would get the focus anyway\n");
 526             }
 527         }
 528
 529         if (!activate) {
 530             ob_debug_type(OB_DEBUG_FOCUS,
 531                           "Focus stealing prevention activated for %s with "
 532                           "time %u (last time %u)\n",
 533                           self->title, self->user_time, last_time);
 534             /* if the client isn't focused, then hilite it so the user
 535                knows it is there */
 536             client_hilite(self, TRUE);
 537         }
 538     }
 539     else {
 540         /* This may look rather odd. Well it's because new windows are added
 541            to the stacking order non-intrusively. If we're not going to focus
 542            the new window or hilite it, then we raise it to the top. This will
 543            take affect for things that don't get focused like splash screens.
 544            Also if you don't have focus_new enabled, then it's going to get
 545            raised to the top. Legacy begets legacy I guess?
 546         */
 547         if (!client_restore_session_stacking(self))
 548             stacking_raise(CLIENT_AS_WINDOW(self));
 549     }
 550
 551     mouse_grab_for_client(self, TRUE);
 552
 553     /* this has to happen before we try focus the window, but we want it to
 554        happen after the client's stacking has been determined or it looks bad
 555     */
 556     client_show(self);
 557
 558     if (activate) {
 559         gboolean stacked = client_restore_session_stacking(self);
 560         client_present(self, FALSE, !stacked);
 561     }
 562
 563     /* add to client list/map */
 564     client_list = g_list_append(client_list, self);
 565     g_hash_table_insert(window_map, &self->window, self);
 566
 567     /* this has to happen after we're in the client_list */
 568     if (STRUT_EXISTS(self->strut))
 569         screen_update_areas();
 570
 571     /* update the list hints */
 572     client_set_list();
 573
 574     /* free the ObAppSettings shallow copy */
 575     g_free(settings);
 576
 577     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 578              window, self->frame->plate, self->class);
 579
 580     return;
 581 }
 582
 583
 584 ObClient *client_fake_manage(Window window)
 585 {
 586     ObClient *self;
 587     ObAppSettings *settings;
 588
 589     ob_debug("Pretend-managing window: %lx\n", window);
 590
 591     /* do this minimal stuff to figure out the client's decorations */
 592
 593     self = g_new0(ObClient, 1);
 594     self->window = window;
 595
 596     client_get_all(self, FALSE);
 597     /* per-app settings override stuff, and return the settings for other
 598        uses too. this returns a shallow copy that needs to be freed */
 599     settings = client_get_settings_state(self);
 600
 601     client_setup_decor_and_functions(self, FALSE);
 602
 603     /* create the decoration frame for the client window and adjust its size */
 604     self->frame = frame_new(self);
 605     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 606
 607     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 608              self->frame->size.left, self->frame->size.right,
 609              self->frame->size.top, self->frame->size.bottom);
 610
 611     /* free the ObAppSettings shallow copy */
 612     g_free(settings);
 613
 614     return self;
 615 }
 616
 617 void client_unmanage_all()
 618 {
 619     while (client_list != NULL)
 620         client_unmanage(client_list->data);
 621 }
 622
 623 void client_unmanage(ObClient *self)
 624 {
 625     guint j;
 626     GSList *it;
 627
 628     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 629              self->window, self->frame->plate,
 630              self->class, self->title ? self->title : "");
 631
 632     g_assert(self != NULL);
 633
 634     /* we dont want events no more. do this before hiding the frame so we
 635        don't generate more events */
 636     XSelectInput(ob_display, self->window, NoEventMask);
 637
 638     frame_hide(self->frame);
 639     /* flush to send the hide to the server quickly */
 640     XFlush(ob_display);
 641
 642     /* ignore enter events from the unmap so it doesnt mess with the
 643        focus */
 644     event_ignore_all_queued_enters();
 645
 646     mouse_grab_for_client(self, FALSE);
 647
 648     /* remove the window from our save set */
 649     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 650
 651     /* kill the property windows */
 652     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 653
 654     /* update the focus lists */
 655     focus_order_remove(self);
 656     if (client_focused(self)) {
 657         /* don't leave an invalid focus_client */
 658         focus_client = NULL;
 659     }
 660
 661     client_list = g_list_remove(client_list, self);
 662     stacking_remove(self);
 663     g_hash_table_remove(window_map, &self->window);
 664
 665     /* once the client is out of the list, update the struts to remove its
 666        influence */
 667     if (STRUT_EXISTS(self->strut))
 668         screen_update_areas();
 669
 670     client_call_notifies(self, client_destroy_notifies);
 671
 672     /* tell our parent(s) that we're gone */
 673     if (self->transient_for == OB_TRAN_GROUP) { /* transient of group */
 674         for (it = self->group->members; it; it = g_slist_next(it))
 675             if (it->data != self)
 676                 ((ObClient*)it->data)->transients =
 677                     g_slist_remove(((ObClient*)it->data)->transients,self);
 678     } else if (self->transient_for) {        /* transient of window */
 679         self->transient_for->transients =
 680             g_slist_remove(self->transient_for->transients, self);
 681     }
 682
 683     /* tell our transients that we're gone */
 684     for (it = self->transients; it; it = g_slist_next(it)) {
 685         if (((ObClient*)it->data)->transient_for != OB_TRAN_GROUP) {
 686             ((ObClient*)it->data)->transient_for = NULL;
 687             client_calc_layer(it->data);
 688         }
 689     }
 690
 691     /* remove from its group */
 692     if (self->group) {
 693         group_remove(self->group, self);
 694         self->group = NULL;
 695     }
 696
 697     /* restore the window's original geometry so it is not lost */
 698     {
 699         Rect a;
 700
 701         a = self->area;
 702
 703         if (self->fullscreen)
 704             a = self->pre_fullscreen_area;
 705         else if (self->max_horz || self->max_vert) {
 706             if (self->max_horz) {
 707                 a.x = self->pre_max_area.x;
 708                 a.width = self->pre_max_area.width;
 709             }
 710             if (self->max_vert) {
 711                 a.y = self->pre_max_area.y;
 712                 a.height = self->pre_max_area.height;
 713             }
 714         }
 715
 716         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 717         /* let it be moved and resized no matter what */
 718         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 719         self->decorations = 0; /* unmanaged windows have no decor */
 720
 721         client_move_resize(self, a.x, a.y, a.width, a.height);
 722     }
 723
 724     /* reparent the window out of the frame, and free the frame */
 725     frame_release_client(self->frame);
 726     frame_free(self->frame);
 727     self->frame = NULL;
 728
 729     if (ob_state() != OB_STATE_EXITING) {
 730         /* these values should not be persisted across a window
 731            unmapping/mapping */
 732         PROP_ERASE(self->window, net_wm_desktop);
 733         PROP_ERASE(self->window, net_wm_state);
 734         PROP_ERASE(self->window, wm_state);
 735     } else {
 736         /* if we're left in an unmapped state, the client wont be mapped.
 737            this is bad, since we will no longer be managing the window on
 738            restart */
 739         XMapWindow(ob_display, self->window);
 740     }
 741
 742     /* update the list hints */
 743     client_set_list();
 744
 745     ob_debug("Unmanaged window 0x%lx\n", self->window);
 746
 747     /* free all data allocated in the client struct */
 748     g_slist_free(self->transients);
 749     for (j = 0; j < self->nicons; ++j)
 750         g_free(self->icons[j].data);
 751     if (self->nicons > 0)
 752         g_free(self->icons);
 753     g_free(self->wm_command);
 754     g_free(self->title);
 755     g_free(self->icon_title);
 756     g_free(self->name);
 757     g_free(self->class);
 758     g_free(self->role);
 759     g_free(self->client_machine);
 760     g_free(self->sm_client_id);
 761     g_free(self);
 762 }
 763
 764 void client_fake_unmanage(ObClient *self)
 765 {
 766     /* this is all that got allocated to get the decorations */
 767
 768     frame_free(self->frame);
 769     g_free(self);
 770 }
 771
 772 /*! Returns a new structure containing the per-app settings for this client.
 773   The returned structure needs to be freed with g_free. */
 774 static ObAppSettings *client_get_settings_state(ObClient *self)
 775 {
 776     ObAppSettings *settings;
 777     GSList *it;
 778
 779     settings = config_create_app_settings();
 780
 781     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 782         ObAppSettings *app = it->data;
 783         gboolean match = TRUE;
 784
 785         g_assert(app->name != NULL || app->class != NULL);
 786
 787         /* we know that either name or class is not NULL so it will have to
 788            match to use the rule */
 789         if (app->name &&
 790             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 791             match = FALSE;
 792         else if (app->class &&
 793                 !g_pattern_match(app->class,
 794                                  strlen(self->class), self->class, NULL))
 795             match = FALSE;
 796         else if (app->role &&
 797                  !g_pattern_match(app->role,
 798                                   strlen(self->role), self->role, NULL))
 799             match = FALSE;
 800
 801         if (match) {
 802             ob_debug("Window matching: %s\n", app->name);
 803
 804             /* copy the settings to our struct, overriding the existing
 805                settings if they are not defaults */
 806             config_app_settings_copy_non_defaults(app, settings);
 807         }
 808     }
 809
 810     if (settings->shade != -1)
 811         self->shaded = !!settings->shade;
 812     if (settings->decor != -1)
 813         self->undecorated = !settings->decor;
 814     if (settings->iconic != -1)
 815         self->iconic = !!settings->iconic;
 816     if (settings->skip_pager != -1)
 817         self->skip_pager = !!settings->skip_pager;
 818     if (settings->skip_taskbar != -1)
 819         self->skip_taskbar = !!settings->skip_taskbar;
 820
 821     if (settings->max_vert != -1)
 822         self->max_vert = !!settings->max_vert;
 823     if (settings->max_horz != -1)
 824         self->max_horz = !!settings->max_horz;
 825
 826     if (settings->fullscreen != -1)
 827         self->fullscreen = !!settings->fullscreen;
 828
 829     if (settings->desktop) {
 830         if (settings->desktop == DESKTOP_ALL)
 831             self->desktop = settings->desktop;
 832         else if (settings->desktop > 0 &&
 833                  settings->desktop <= screen_num_desktops)
 834             self->desktop = settings->desktop - 1;
 835     }
 836
 837     if (settings->layer == -1) {
 838         self->below = TRUE;
 839         self->above = FALSE;
 840     }
 841     else if (settings->layer == 0) {
 842         self->below = FALSE;
 843         self->above = FALSE;
 844     }
 845     else if (settings->layer == 1) {
 846         self->below = FALSE;
 847         self->above = TRUE;
 848     }
 849     return settings;
 850 }
 851
 852 static void client_restore_session_state(ObClient *self)
 853 {
 854     GList *it;
 855
 856     ob_debug_type(OB_DEBUG_SM,
 857                   "Restore session for client %s\n", self->title);
 858
 859     if (!(it = session_state_find(self))) {
 860         ob_debug_type(OB_DEBUG_SM,
 861                       "Session data not found for client %s\n", self->title);
 862         return;
 863     }
 864
 865     self->session = it->data;
 866
 867     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 868                   self->title);
 869
 870     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 871     self->positioned = USPosition;
 872     self->sized = USSize;
 873     if (self->session->w > 0)
 874         self->area.width = self->session->w;
 875     if (self->session->h > 0)
 876         self->area.height = self->session->h;
 877     XResizeWindow(ob_display, self->window,
 878                   self->area.width, self->area.height);
 879
 880     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 881                      self->session->desktop :
 882                      MIN(screen_num_desktops - 1, self->session->desktop));
 883     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 884
 885     self->shaded = self->session->shaded;
 886     self->iconic = self->session->iconic;
 887     self->skip_pager = self->session->skip_pager;
 888     self->skip_taskbar = self->session->skip_taskbar;
 889     self->fullscreen = self->session->fullscreen;
 890     self->above = self->session->above;
 891     self->below = self->session->below;
 892     self->max_horz = self->session->max_horz;
 893     self->max_vert = self->session->max_vert;
 894     self->undecorated = self->session->undecorated;
 895 }
 896
 897 static gboolean client_restore_session_stacking(ObClient *self)
 898 {
 899     GList *it, *mypos;
 900
 901     if (!self->session) return FALSE;
 902
 903     mypos = g_list_find(session_saved_state, self->session);
 904     if (!mypos) return FALSE;
 905
 906     /* start above me and look for the first client */
 907     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 908         GList *cit;
 909
 910         for (cit = client_list; cit; cit = g_list_next(cit)) {
 911             ObClient *c = cit->data;
 912             /* found a client that was in the session, so go below it */
 913             if (c->session == it->data) {
 914                 stacking_below(CLIENT_AS_WINDOW(self),
 915                                CLIENT_AS_WINDOW(cit->data));
 916                 return TRUE;
 917             }
 918         }
 919     }
 920     return FALSE;
 921 }
 922
 923 void client_move_onscreen(ObClient *self, gboolean rude)
 924 {
 925     gint x = self->area.x;
 926     gint y = self->area.y;
 927     if (client_find_onscreen(self, &x, &y,
 928                              self->area.width,
 929                              self->area.height, rude)) {
 930         client_move(self, x, y);
 931     }
 932 }
 933
 934 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 935                               gboolean rude)
 936 {
 937     Rect *mon_a, *all_a;
 938     gint ox = *x, oy = *y;
 939     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 940     gint fw, fh;
 941     Rect desired;
 942
 943     RECT_SET(desired, *x, *y, w, h);
 944     all_a = screen_area(self->desktop);
 945     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired));
 946
 947     /* get where the frame would be */
 948     frame_client_gravity(self->frame, x, y, w, h);
 949
 950     /* get the requested size of the window with decorations */
 951     fw = self->frame->size.left + w + self->frame->size.right;
 952     fh = self->frame->size.top + h + self->frame->size.bottom;
 953
 954     /* This makes sure windows aren't entirely outside of the screen so you
 955        can't see them at all.
 956        It makes sure 10% of the window is on the screen at least. At don't let
 957        it move itself off the top of the screen, which would hide the titlebar
 958        on you. (The user can still do this if they want too, it's only limiting
 959        the application.
 960
 961        XXX watch for xinerama dead areas...
 962     */
 963     if (client_normal(self)) {
 964         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 965             *x = all_a->x + all_a->width - fw/10;
 966         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 967             *y = all_a->y + all_a->height - fh/10;
 968         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 969             *x = all_a->x - fw*9/10;
 970         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 971             *y = all_a->y - fw*9/10;
 972     }
 973
 974     /* If rudeness wasn't requested, then figure out of the client is currently
 975        entirely on the screen. If it is, and the position isn't changing by
 976        request, and it is enlarging, then be rude even though it wasn't
 977        requested */
 978     if (!rude) {
 979         Point oldtl, oldtr, oldbl, oldbr;
 980         Point newtl, newtr, newbl, newbr;
 981         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 982
 983         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 984         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 985                   self->frame->area.y + self->frame->area.height - 1);
 986         POINT_SET(oldtr, oldbr.x, oldtl.y);
 987         POINT_SET(oldbl, oldtl.x, oldbr.y);
 988
 989         POINT_SET(newtl, *x, *y);
 990         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 991         POINT_SET(newtr, newbr.x, newtl.y);
 992         POINT_SET(newbl, newtl.x, newbr.y);
 993
 994         /* is it moving or just resizing from some corner? */
 995         stationary_l = oldtl.x == newtl.x;
 996         stationary_r = oldtr.x == newtr.x;
 997         stationary_t = oldtl.y == newtl.y;
 998         stationary_b = oldbl.y == newbl.y;
 999
1000         /* if left edge is growing and didnt move right edge */
1001         if (stationary_r && newtl.x < oldtl.x)
1002             rudel = TRUE;
1003         /* if right edge is growing and didnt move left edge */
1004         if (stationary_l && newtr.x > oldtr.x)
1005             ruder = TRUE;
1006         /* if top edge is growing and didnt move bottom edge */
1007         if (stationary_b && newtl.y < oldtl.y)
1008             rudet = TRUE;
1009         /* if bottom edge is growing and didnt move top edge */
1010         if (stationary_t && newbl.y > oldbl.y)
1011             rudeb = TRUE;
1012     }
1013
1014     /* This here doesn't let windows even a pixel outside the struts/screen.
1015      * When called from client_manage, programs placing themselves are
1016      * forced completely onscreen, while things like
1017      * xterm -geometry resolution-width/2 will work fine. Trying to
1018      * place it completely offscreen will be handled in the above code.
1019      * Sorry for this confused comment, i am tired. */
1020     if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
1021     if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
1022         *x = mon_a->x + MAX(0, mon_a->width - fw);
1023
1024     if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
1025     if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
1026         *y = mon_a->y + MAX(0, mon_a->height - fh);
1027
1028     /* get where the client should be */
1029     frame_frame_gravity(self->frame, x, y, w, h);
1030
1031     return ox != *x || oy != *y;
1032 }
1033
1034 static void client_get_all(ObClient *self, gboolean real)
1035 {
1036     /* this is needed for the frame to set itself up */
1037     client_get_area(self);
1038
1039     /* these things can change the decor and functions of the window */
1040
1041     client_get_mwm_hints(self);
1042     /* this can change the mwmhints for special cases */
1043     client_get_type_and_transientness(self);
1044     client_get_state(self);
1045     client_update_normal_hints(self);
1046
1047     /* get the session related properties, these can change decorations
1048        from per-app settings */
1049     client_get_session_ids(self);
1050
1051     /* now we got everything that can affect the decorations */
1052     if (!real)
1053         return;
1054
1055     /* get this early so we have it for debugging */
1056     client_update_title(self);
1057
1058     client_update_protocols(self);
1059
1060     client_update_wmhints(self);
1061     /* this may have already been called from client_update_wmhints */
1062     if (self->transient_for == NULL)
1063         client_update_transient_for(self);
1064
1065     client_get_startup_id(self);
1066     client_get_desktop(self);/* uses transient data/group/startup id if a
1067                                 desktop is not specified */
1068     client_get_shaped(self);
1069
1070     {
1071         /* a couple type-based defaults for new windows */
1072
1073         /* this makes sure that these windows appear on all desktops */
1074         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1075             self->desktop = DESKTOP_ALL;
1076     }
1077
1078 #ifdef SYNC
1079     client_update_sync_request_counter(self);
1080 #endif
1081
1082     client_get_colormap(self);
1083     client_update_strut(self);
1084     client_update_icons(self);
1085     client_update_user_time_window(self);
1086     if (!self->user_time_window) /* check if this would have been called */
1087         client_update_user_time(self);
1088     client_update_icon_geometry(self);
1089 }
1090
1091 static void client_get_startup_id(ObClient *self)
1092 {
1093     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1094         if (self->group)
1095             PROP_GETS(self->group->leader,
1096                       net_startup_id, utf8, &self->startup_id);
1097 }
1098
1099 static void client_get_area(ObClient *self)
1100 {
1101     XWindowAttributes wattrib;
1102     Status ret;
1103
1104     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1105     g_assert(ret != BadWindow);
1106
1107     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1108     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1109     self->border_width = wattrib.border_width;
1110
1111     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1112              wattrib.width, wattrib.height, wattrib.border_width);
1113 }
1114
1115 static void client_get_desktop(ObClient *self)
1116 {
1117     guint32 d = screen_num_desktops; /* an always-invalid value */
1118
1119     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1120         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1121             self->desktop = screen_num_desktops - 1;
1122         else
1123             self->desktop = d;
1124         ob_debug("client requested desktop 0x%x\n", self->desktop);
1125     } else {
1126         gboolean trdesk = FALSE;
1127
1128         if (self->transient_for) {
1129             if (self->transient_for != OB_TRAN_GROUP) {
1130                 if (self->transient_for->desktop != DESKTOP_ALL) {
1131                     self->desktop = self->transient_for->desktop;
1132                     trdesk = TRUE;
1133                 }
1134             } else {
1135                 /* if all the group is on one desktop, then open it on the
1136                    same desktop */
1137                 GSList *it;
1138                 gboolean first = TRUE;
1139                 guint all = screen_num_desktops; /* not a valid value */
1140
1141                 for (it = self->group->members; it; it = g_slist_next(it)) {
1142                     ObClient *c = it->data;
1143                     if (c != self) {
1144                         if (first) {
1145                             all = c->desktop;
1146                             first = FALSE;
1147                         }
1148                         else if (all != c->desktop)
1149                             all = screen_num_desktops; /* make it invalid */
1150                     }
1151                 }
1152                 if (all != screen_num_desktops) {
1153                     self->desktop = all;
1154                     trdesk = TRUE;
1155                 }
1156             }
1157         }
1158         if (!trdesk) {
1159             /* try get from the startup-notification protocol */
1160             if (sn_get_desktop(self->startup_id, &self->desktop)) {
1161                 if (self->desktop >= screen_num_desktops &&
1162                     self->desktop != DESKTOP_ALL)
1163                     self->desktop = screen_num_desktops - 1;
1164             } else
1165                 /* defaults to the current desktop */
1166                 self->desktop = screen_desktop;
1167         }
1168     }
1169 }
1170
1171 static void client_get_state(ObClient *self)
1172 {
1173     guint32 *state;
1174     guint num;
1175
1176     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1177         gulong i;
1178         for (i = 0; i < num; ++i) {
1179             if (state[i] == prop_atoms.net_wm_state_modal)
1180                 self->modal = TRUE;
1181             else if (state[i] == prop_atoms.net_wm_state_shaded)
1182                 self->shaded = TRUE;
1183             else if (state[i] == prop_atoms.net_wm_state_hidden)
1184                 self->iconic = TRUE;
1185             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1186                 self->skip_taskbar = TRUE;
1187             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1188                 self->skip_pager = TRUE;
1189             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1190                 self->fullscreen = TRUE;
1191             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1192                 self->max_vert = TRUE;
1193             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1194                 self->max_horz = TRUE;
1195             else if (state[i] == prop_atoms.net_wm_state_above)
1196                 self->above = TRUE;
1197             else if (state[i] == prop_atoms.net_wm_state_below)
1198                 self->below = TRUE;
1199             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1200                 self->demands_attention = TRUE;
1201             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1202                 self->undecorated = TRUE;
1203         }
1204
1205         g_free(state);
1206     }
1207 }
1208
1209 static void client_get_shaped(ObClient *self)
1210 {
1211     self->shaped = FALSE;
1212 #ifdef   SHAPE
1213     if (extensions_shape) {
1214         gint foo;
1215         guint ufoo;
1216         gint s;
1217
1218         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1219
1220         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1221                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1222                            &ufoo);
1223         self->shaped = (s != 0);
1224     }
1225 #endif
1226 }
1227
1228 void client_update_transient_for(ObClient *self)
1229 {
1230     Window t = None;
1231     ObClient *target = NULL;
1232
1233     if (XGetTransientForHint(ob_display, self->window, &t)) {
1234         if (t != self->window) { /* cant be transient to itself! */
1235             target = g_hash_table_lookup(window_map, &t);
1236             /* if this happens then we need to check for it*/
1237             g_assert(target != self);
1238             if (target && !WINDOW_IS_CLIENT(target)) {
1239                 /* this can happen when a dialog is a child of
1240                    a dockapp, for example */
1241                 target = NULL;
1242             }
1243
1244             /* THIS IS SO ANNOYING ! ! ! ! Let me explain.... have a seat..
1245
1246                Setting the transient_for to Root is actually illegal, however
1247                applications from time have done this to specify transient for
1248                their group.
1249
1250                Now you can do that by being a TYPE_DIALOG and not setting
1251                the transient_for hint at all on your window. But people still
1252                use Root, and Kwin is very strange in this regard.
1253
1254                KWin 3.0 will not consider windows with transient_for set to
1255                Root as transient for their group *UNLESS* they are also modal.
1256                In that case, it will make them transient for the group. This
1257                leads to all sorts of weird behavior from KDE apps which are
1258                only tested in KWin. I'd like to follow their behavior just to
1259                make this work right with KDE stuff, but that seems wrong.
1260             */
1261             if (!target && self->group) {
1262                 /* not transient to a client, see if it is transient for a
1263                    group */
1264                 if (t == RootWindow(ob_display, ob_screen)) {
1265                     /* window is a transient for its group! */
1266                     target = OB_TRAN_GROUP;
1267                 }
1268             }
1269         }
1270     } else if (self->transient && self->group)
1271         target = OB_TRAN_GROUP;
1272
1273     client_update_transient_tree(self, self->group, self->group,
1274                                  self->transient_for, target);
1275     self->transient_for = target;
1276
1277 }
1278
1279 static void client_update_transient_tree(ObClient *self,
1280                                          ObGroup *oldgroup, ObGroup *newgroup,
1281                                          ObClient* oldparent,
1282                                          ObClient *newparent)
1283 {
1284     GSList *it, *next;
1285     ObClient *c;
1286
1287     /* * *
1288       Group transient windows are not allowed to have other group
1289       transient windows as their children.
1290       * * */
1291
1292
1293     /* No change has occured */
1294     if (oldgroup == newgroup && oldparent == newparent) return;
1295
1296     /** Remove the client from the transient tree wherever it has changed **/
1297
1298     /* If the window is becoming a direct transient for a window in its group
1299        then any group transients which were our children and are now becoming
1300        our parents need to stop being our children.
1301
1302        Group transients can't be children of group transients already, but
1303        we could have any number of direct parents above up, any of which could
1304        be transient for the group, and we need to remove it from our children.
1305     */
1306     if (oldparent != newparent &&
1307         newparent != NULL && newparent != OB_TRAN_GROUP &&
1308         newgroup != NULL && newgroup == oldgroup)
1309     {
1310         ObClient *look = newparent;
1311         do {
1312             self->transients = g_slist_remove(self->transients, look);
1313             look = look->transient_for;
1314         } while (look != NULL && look != OB_TRAN_GROUP);
1315     }
1316
1317
1318     /* If the group changed, or if we are just becoming transient for the
1319        group, then we need to remove any old group transient windows
1320        from our children. But if we were already transient for the group, then
1321        other group transients are not our children. */
1322     if ((oldgroup != newgroup ||
1323          (newparent == OB_TRAN_GROUP && oldparent != newparent)) &&
1324         oldgroup != NULL && oldparent != OB_TRAN_GROUP)
1325     {
1326         for (it = self->transients; it; it = next) {
1327             next = g_slist_next(it);
1328             c = it->data;
1329             if (c->group == oldgroup)
1330                 self->transients = g_slist_delete_link(self->transients, it);
1331         }
1332     }
1333
1334     /* If we used to be transient for a group and now we are not, or we're
1335        transient for a new group, then we need to remove ourselves from all
1336        our ex-parents */
1337     if (oldparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1338                                        oldparent != newparent))
1339     {
1340         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1341             c = it->data;
1342             if (c != self && (!c->transient_for ||
1343                               c->transient_for != OB_TRAN_GROUP))
1344                 c->transients = g_slist_remove(c->transients, self);
1345         }
1346     }
1347     /* If we used to be transient for a single window and we are no longer
1348        transient for it, then we need to remove ourself from its children */
1349     else if (oldparent != NULL && oldparent != OB_TRAN_GROUP &&
1350              oldparent != newparent)
1351         oldparent->transients = g_slist_remove(oldparent->transients, self);
1352
1353
1354     /** Re-add the client to the transient tree wherever it has changed **/
1355
1356     /* If we're now transient for a group and we weren't transient for it
1357        before then we need to add ourselves to all our new parents */
1358     if (newparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1359                                        oldparent != newparent))
1360     {
1361         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1362             c = it->data;
1363             if (c != self && (!c->transient_for ||
1364                               c->transient_for != OB_TRAN_GROUP))
1365                 c->transients = g_slist_prepend(c->transients, self);
1366         }
1367     }
1368     /* If we are now transient for a single window which we weren't before,
1369        we need to add ourselves to its children
1370
1371        WARNING: Cyclical transient ness is possible if two windows are
1372        transient for eachother.
1373     */
1374     else if (newparent != NULL && newparent != OB_TRAN_GROUP &&
1375              newparent != oldparent &&
1376              /* don't make ourself its child if it is already our child */
1377              !client_is_direct_child(self, newparent))
1378         newparent->transients = g_slist_prepend(newparent->transients, self);
1379
1380     /* If the group changed then we need to add any new group transient
1381        windows to our children. But if we're transient for the group, then
1382        other group transients are not our children.
1383
1384        WARNING: Cyclical transient-ness is possible. For e.g. if:
1385        A is transient for the group
1386        B is transient for A
1387        C is transient for B
1388        A can't be transient for C or we have a cycle
1389     */
1390     if (oldgroup != newgroup && newgroup != NULL &&
1391         newparent != OB_TRAN_GROUP)
1392     {
1393         for (it = newgroup->members; it; it = g_slist_next(it)) {
1394             c = it->data;
1395             if (c != self && c->transient_for == OB_TRAN_GROUP &&
1396                 /* Don't make it our child if it is already our parent */
1397                 !client_is_direct_child(c, self))
1398             {
1399                 self->transients = g_slist_prepend(self->transients, c);
1400             }
1401         }
1402     }
1403 }
1404
1405 static void client_get_mwm_hints(ObClient *self)
1406 {
1407     guint num;
1408     guint32 *hints;
1409
1410     self->mwmhints.flags = 0; /* default to none */
1411
1412     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1413                     &hints, &num)) {
1414         if (num >= OB_MWM_ELEMENTS) {
1415             self->mwmhints.flags = hints[0];
1416             self->mwmhints.functions = hints[1];
1417             self->mwmhints.decorations = hints[2];
1418         }
1419         g_free(hints);
1420     }
1421 }
1422
1423 void client_get_type_and_transientness(ObClient *self)
1424 {
1425     guint num, i;
1426     guint32 *val;
1427     Window t;
1428
1429     self->type = -1;
1430     self->transient = FALSE;
1431
1432     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1433         /* use the first value that we know about in the array */
1434         for (i = 0; i < num; ++i) {
1435             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1436                 self->type = OB_CLIENT_TYPE_DESKTOP;
1437             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1438                 self->type = OB_CLIENT_TYPE_DOCK;
1439             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1440                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1441             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1442                 self->type = OB_CLIENT_TYPE_MENU;
1443             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1444                 self->type = OB_CLIENT_TYPE_UTILITY;
1445             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1446                 self->type = OB_CLIENT_TYPE_SPLASH;
1447             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1448                 self->type = OB_CLIENT_TYPE_DIALOG;
1449             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1450                 self->type = OB_CLIENT_TYPE_NORMAL;
1451             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1452                 /* prevent this window from getting any decor or
1453                    functionality */
1454                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1455                                          OB_MWM_FLAG_DECORATIONS);
1456                 self->mwmhints.decorations = 0;
1457                 self->mwmhints.functions = 0;
1458             }
1459             if (self->type != (ObClientType) -1)
1460                 break; /* grab the first legit type */
1461         }
1462         g_free(val);
1463     }
1464
1465     if (XGetTransientForHint(ob_display, self->window, &t))
1466         self->transient = TRUE;
1467
1468     if (self->type == (ObClientType) -1) {
1469         /*the window type hint was not set, which means we either classify
1470           ourself as a normal window or a dialog, depending on if we are a
1471           transient. */
1472         if (self->transient)
1473             self->type = OB_CLIENT_TYPE_DIALOG;
1474         else
1475             self->type = OB_CLIENT_TYPE_NORMAL;
1476     }
1477
1478     /* then, based on our type, we can update our transientness.. */
1479     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1480         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1481         self->type == OB_CLIENT_TYPE_MENU ||
1482         self->type == OB_CLIENT_TYPE_UTILITY)
1483     {
1484         self->transient = TRUE;
1485     }
1486 }
1487
1488 void client_update_protocols(ObClient *self)
1489 {
1490     guint32 *proto;
1491     guint num_return, i;
1492
1493     self->focus_notify = FALSE;
1494     self->delete_window = FALSE;
1495
1496     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1497         for (i = 0; i < num_return; ++i) {
1498             if (proto[i] == prop_atoms.wm_delete_window)
1499                 /* this means we can request the window to close */
1500                 self->delete_window = TRUE;
1501             else if (proto[i] == prop_atoms.wm_take_focus)
1502                 /* if this protocol is requested, then the window will be
1503                    notified whenever we want it to receive focus */
1504                 self->focus_notify = TRUE;
1505 #ifdef SYNC
1506             else if (proto[i] == prop_atoms.net_wm_sync_request)
1507                 /* if this protocol is requested, then resizing the
1508                    window will be synchronized between the frame and the
1509                    client */
1510                 self->sync_request = TRUE;
1511 #endif
1512         }
1513         g_free(proto);
1514     }
1515 }
1516
1517 #ifdef SYNC
1518 void client_update_sync_request_counter(ObClient *self)
1519 {
1520     guint32 i;
1521
1522     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1523         self->sync_counter = i;
1524     } else
1525         self->sync_counter = None;
1526 }
1527 #endif
1528
1529 void client_get_colormap(ObClient *self)
1530 {
1531     XWindowAttributes wa;
1532
1533     if (XGetWindowAttributes(ob_display, self->window, &wa))
1534         client_update_colormap(self, wa.colormap);
1535 }
1536
1537 void client_update_colormap(ObClient *self, Colormap colormap)
1538 {
1539     if (colormap == self->colormap) return;
1540
1541     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1542
1543     if (client_focused(self)) {
1544         screen_install_colormap(self, FALSE); /* uninstall old one */
1545         self->colormap = colormap;
1546         screen_install_colormap(self, FALSE); /* install new one */
1547     } else
1548         self->colormap = colormap;
1549 }
1550
1551 void client_update_normal_hints(ObClient *self)
1552 {
1553     XSizeHints size;
1554     glong ret;
1555
1556     /* defaults */
1557     self->min_ratio = 0.0f;
1558     self->max_ratio = 0.0f;
1559     SIZE_SET(self->size_inc, 1, 1);
1560     SIZE_SET(self->base_size, 0, 0);
1561     SIZE_SET(self->min_size, 0, 0);
1562     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1563
1564     /* get the hints from the window */
1565     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1566         /* normal windows can't request placement! har har
1567         if (!client_normal(self))
1568         */
1569         self->positioned = (size.flags & (PPosition|USPosition));
1570         self->sized = (size.flags & (PSize|USSize));
1571
1572         if (size.flags & PWinGravity)
1573             self->gravity = size.win_gravity;
1574
1575         if (size.flags & PAspect) {
1576             if (size.min_aspect.y)
1577                 self->min_ratio =
1578                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1579             if (size.max_aspect.y)
1580                 self->max_ratio =
1581                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1582         }
1583
1584         if (size.flags & PMinSize)
1585             SIZE_SET(self->min_size, size.min_width, size.min_height);
1586
1587         if (size.flags & PMaxSize)
1588             SIZE_SET(self->max_size, size.max_width, size.max_height);
1589
1590         if (size.flags & PBaseSize)
1591             SIZE_SET(self->base_size, size.base_width, size.base_height);
1592
1593         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1594             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1595     }
1596 }
1597
1598 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1599 {
1600     /* start with everything (cept fullscreen) */
1601     self->decorations =
1602         (OB_FRAME_DECOR_TITLEBAR |
1603          OB_FRAME_DECOR_HANDLE |
1604          OB_FRAME_DECOR_GRIPS |
1605          OB_FRAME_DECOR_BORDER |
1606          OB_FRAME_DECOR_ICON |
1607          OB_FRAME_DECOR_ALLDESKTOPS |
1608          OB_FRAME_DECOR_ICONIFY |
1609          OB_FRAME_DECOR_MAXIMIZE |
1610          OB_FRAME_DECOR_SHADE |
1611          OB_FRAME_DECOR_CLOSE);
1612     self->functions =
1613         (OB_CLIENT_FUNC_RESIZE |
1614          OB_CLIENT_FUNC_MOVE |
1615          OB_CLIENT_FUNC_ICONIFY |
1616          OB_CLIENT_FUNC_MAXIMIZE |
1617          OB_CLIENT_FUNC_SHADE |
1618          OB_CLIENT_FUNC_CLOSE |
1619          OB_CLIENT_FUNC_BELOW |
1620          OB_CLIENT_FUNC_ABOVE |
1621          OB_CLIENT_FUNC_UNDECORATE);
1622
1623     if (!(self->min_size.width < self->max_size.width ||
1624           self->min_size.height < self->max_size.height))
1625         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1626
1627     switch (self->type) {
1628     case OB_CLIENT_TYPE_NORMAL:
1629         /* normal windows retain all of the possible decorations and
1630            functionality, and are the only windows that you can fullscreen */
1631         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1632         break;
1633
1634     case OB_CLIENT_TYPE_DIALOG:
1635     case OB_CLIENT_TYPE_UTILITY:
1636         /* these windows don't have anything added or removed by default */
1637         break;
1638
1639     case OB_CLIENT_TYPE_MENU:
1640     case OB_CLIENT_TYPE_TOOLBAR:
1641         /* these windows can't iconify or maximize */
1642         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1643                                OB_FRAME_DECOR_MAXIMIZE);
1644         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1645                              OB_CLIENT_FUNC_MAXIMIZE);
1646         break;
1647
1648     case OB_CLIENT_TYPE_SPLASH:
1649         /* these don't get get any decorations, and the only thing you can
1650            do with them is move them */
1651         self->decorations = 0;
1652         self->functions = OB_CLIENT_FUNC_MOVE;
1653         break;
1654
1655     case OB_CLIENT_TYPE_DESKTOP:
1656         /* these windows are not manipulated by the window manager */
1657         self->decorations = 0;
1658         self->functions = 0;
1659         break;
1660
1661     case OB_CLIENT_TYPE_DOCK:
1662         /* these windows are not manipulated by the window manager, but they
1663            can set below layer which has a special meaning */
1664         self->decorations = 0;
1665         self->functions = OB_CLIENT_FUNC_BELOW;
1666         break;
1667     }
1668
1669     /* Mwm Hints are applied subtractively to what has already been chosen for
1670        decor and functionality */
1671     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1672         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1673             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1674                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1675             {
1676                 /* if the mwm hints request no handle or title, then all
1677                    decorations are disabled, but keep the border if that's
1678                    specified */
1679                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1680                     self->decorations = OB_FRAME_DECOR_BORDER;
1681                 else
1682                     self->decorations = 0;
1683             }
1684         }
1685     }
1686
1687     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1688         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1689             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1690                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1691             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1692                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1693             /* dont let mwm hints kill any buttons
1694                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1695                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1696                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1697                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1698             */
1699             /* dont let mwm hints kill the close button
1700                if (! (self->mwmhints.functions & MwmFunc_Close))
1701                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1702         }
1703     }
1704
1705     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1706         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1707     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1708         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1709     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1710         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1711
1712     /* can't maximize without moving/resizing */
1713     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1714           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1715           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1716         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1717         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1718     }
1719
1720     if (self->max_horz && self->max_vert) {
1721         /* you can't resize fully maximized windows */
1722         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1723         /* kill the handle on fully maxed windows */
1724         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1725     }
1726
1727     /* If there are no decorations to remove, don't allow the user to try
1728        toggle the state */
1729     if (self->decorations == 0)
1730         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1731
1732     /* finally, the user can have requested no decorations, which overrides
1733        everything (but doesnt give it a border if it doesnt have one) */
1734     if (self->undecorated) {
1735         if (config_theme_keepborder)
1736             self->decorations &= OB_FRAME_DECOR_BORDER;
1737         else
1738             self->decorations = 0;
1739     }
1740
1741     /* if we don't have a titlebar, then we cannot shade! */
1742     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1743         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1744
1745     /* now we need to check against rules for the client's current state */
1746     if (self->fullscreen) {
1747         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1748                             OB_CLIENT_FUNC_FULLSCREEN |
1749                             OB_CLIENT_FUNC_ICONIFY);
1750         self->decorations = 0;
1751     }
1752
1753     client_change_allowed_actions(self);
1754
1755     if (reconfig)
1756         client_reconfigure(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 gboolean client_has_parent(ObClient *self)
2378 {
2379     if (self->transient_for) {
2380         if (self->transient_for != OB_TRAN_GROUP) {
2381             if (client_normal(self->transient_for))
2382                 return TRUE;
2383         }
2384         else if (self->group) {
2385             GSList *it;
2386
2387             for (it = self->group->members; it; it = g_slist_next(it)) {
2388                 if (it->data != self && client_normal(it->data))
2389                     return TRUE;
2390             }
2391         }
2392     }
2393     return FALSE;
2394 }
2395
2396 static ObStackingLayer calc_layer(ObClient *self)
2397 {
2398     ObStackingLayer l;
2399
2400     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2401         l = OB_STACKING_LAYER_DESKTOP;
2402     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2403         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2404         else l = OB_STACKING_LAYER_ABOVE;
2405     }
2406     else if ((self->fullscreen ||
2407               /* No decorations and fills the monitor = oldskool fullscreen.
2408                  But not for maximized windows.
2409               */
2410               (self->decorations == 0 &&
2411                !(self->max_horz && self->max_vert) &&
2412                RECT_EQUAL(self->area,
2413                           *screen_physical_area_monitor
2414                           (client_monitor(self))))) &&
2415              (client_focused(self) || client_search_focus_tree(self)))
2416         l = OB_STACKING_LAYER_FULLSCREEN;
2417     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2418     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2419     else l = OB_STACKING_LAYER_NORMAL;
2420
2421     return l;
2422 }
2423
2424 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2425                                         ObStackingLayer min)
2426 {
2427     ObStackingLayer old, own;
2428     GSList *it;
2429
2430     old = self->layer;
2431     own = calc_layer(self);
2432     self->layer = MAX(own, min);
2433
2434     if (self->layer != old) {
2435         stacking_remove(CLIENT_AS_WINDOW(self));
2436         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2437     }
2438
2439     for (it = self->transients; it; it = g_slist_next(it))
2440         client_calc_layer_recursive(it->data, orig,
2441                                     self->layer);
2442 }
2443
2444 void client_calc_layer(ObClient *self)
2445 {
2446     ObClient *orig;
2447     GSList *it;
2448
2449     orig = self;
2450
2451     /* transients take on the layer of their parents */
2452     it = client_search_all_top_parents(self);
2453
2454     for (; it; it = g_slist_next(it))
2455         client_calc_layer_recursive(it->data, orig, 0);
2456 }
2457
2458 gboolean client_should_show(ObClient *self)
2459 {
2460     if (self->iconic)
2461         return FALSE;
2462     if (client_normal(self) && screen_showing_desktop)
2463         return FALSE;
2464     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2465         return TRUE;
2466
2467     return FALSE;
2468 }
2469
2470 gboolean client_show(ObClient *self)
2471 {
2472     gboolean show = FALSE;
2473
2474     if (client_should_show(self)) {
2475         frame_show(self->frame);
2476         show = TRUE;
2477
2478         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2479            it needs to be in IconicState. This includes when it is on another
2480            desktop!
2481         */
2482         client_change_wm_state(self);
2483     }
2484     return show;
2485 }
2486
2487 gboolean client_hide(ObClient *self)
2488 {
2489     gboolean hide = FALSE;
2490
2491     if (!client_should_show(self)) {
2492         if (self == focus_client) {
2493             /* if there is a grab going on, then we need to cancel it. if we
2494                move focus during the grab, applications will get
2495                NotifyWhileGrabbed events and ignore them !
2496
2497                actions should not rely on being able to move focus during an
2498                interactive grab.
2499             */
2500             event_cancel_all_key_grabs();
2501         }
2502
2503         frame_hide(self->frame);
2504         hide = TRUE;
2505
2506         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2507            it needs to be in IconicState. This includes when it is on another
2508            desktop!
2509         */
2510         client_change_wm_state(self);
2511     }
2512     return hide;
2513 }
2514
2515 void client_showhide(ObClient *self)
2516 {
2517     if (!client_show(self))
2518         client_hide(self);
2519 }
2520
2521 gboolean client_normal(ObClient *self) {
2522     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2523               self->type == OB_CLIENT_TYPE_DOCK ||
2524               self->type == OB_CLIENT_TYPE_SPLASH);
2525 }
2526
2527 gboolean client_helper(ObClient *self)
2528 {
2529     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2530             self->type == OB_CLIENT_TYPE_MENU ||
2531             self->type == OB_CLIENT_TYPE_TOOLBAR);
2532 }
2533
2534 gboolean client_mouse_focusable(ObClient *self)
2535 {
2536     return !(self->type == OB_CLIENT_TYPE_MENU ||
2537              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2538              self->type == OB_CLIENT_TYPE_SPLASH ||
2539              self->type == OB_CLIENT_TYPE_DOCK);
2540 }
2541
2542 gboolean client_enter_focusable(ObClient *self)
2543 {
2544     /* you can focus desktops but it shouldn't on enter */
2545     return (client_mouse_focusable(self) &&
2546             self->type != OB_CLIENT_TYPE_DESKTOP);
2547 }
2548
2549
2550 static void client_apply_startup_state(ObClient *self)
2551 {
2552     /* set the desktop hint, to make sure that it always exists */
2553     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2554
2555     /* these are in a carefully crafted order.. */
2556
2557     if (self->iconic) {
2558         self->iconic = FALSE;
2559         client_iconify(self, TRUE, FALSE, TRUE);
2560     }
2561     if (self->fullscreen) {
2562         self->fullscreen = FALSE;
2563         client_fullscreen(self, TRUE);
2564     }
2565     if (self->undecorated) {
2566         self->undecorated = FALSE;
2567         client_set_undecorated(self, TRUE);
2568     }
2569     if (self->shaded) {
2570         self->shaded = FALSE;
2571         client_shade(self, TRUE);
2572     }
2573     if (self->demands_attention) {
2574         self->demands_attention = FALSE;
2575         client_hilite(self, TRUE);
2576     }
2577
2578     if (self->max_vert && self->max_horz) {
2579         self->max_vert = self->max_horz = FALSE;
2580         client_maximize(self, TRUE, 0);
2581     } else if (self->max_vert) {
2582         self->max_vert = FALSE;
2583         client_maximize(self, TRUE, 2);
2584     } else if (self->max_horz) {
2585         self->max_horz = FALSE;
2586         client_maximize(self, TRUE, 1);
2587     }
2588
2589     /* nothing to do for the other states:
2590        skip_taskbar
2591        skip_pager
2592        modal
2593        above
2594        below
2595     */
2596 }
2597
2598 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2599 {
2600     /* these should be the current values. this is for when you're not moving,
2601        just resizing */
2602     g_assert(*x == self->area.x);
2603     g_assert(oldw == self->area.width);
2604
2605     /* horizontal */
2606     switch (self->gravity) {
2607     default:
2608     case NorthWestGravity:
2609     case WestGravity:
2610     case SouthWestGravity:
2611     case StaticGravity:
2612     case ForgetGravity:
2613         break;
2614     case NorthGravity:
2615     case CenterGravity:
2616     case SouthGravity:
2617         *x -= (neww - oldw) / 2;
2618         break;
2619     case NorthEastGravity:
2620     case EastGravity:
2621     case SouthEastGravity:
2622         *x -= neww - oldw;
2623         break;
2624     }
2625 }
2626
2627 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2628 {
2629     /* these should be the current values. this is for when you're not moving,
2630        just resizing */
2631     g_assert(*y == self->area.y);
2632     g_assert(oldh == self->area.height);
2633
2634     /* vertical */
2635     switch (self->gravity) {
2636     default:
2637     case NorthWestGravity:
2638     case NorthGravity:
2639     case NorthEastGravity:
2640     case StaticGravity:
2641     case ForgetGravity:
2642         break;
2643     case WestGravity:
2644     case CenterGravity:
2645     case EastGravity:
2646         *y -= (newh - oldh) / 2;
2647         break;
2648     case SouthWestGravity:
2649     case SouthGravity:
2650     case SouthEastGravity:
2651         *y -= newh - oldh;
2652         break;
2653     }
2654 }
2655
2656 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2657                           gint *logicalw, gint *logicalh,
2658                           gboolean user)
2659 {
2660     Rect desired_area = {*x, *y, *w, *h};
2661
2662     /* make the frame recalculate its dimentions n shit without changing
2663        anything visible for real, this way the constraints below can work with
2664        the updated frame dimensions. */
2665     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2666
2667     /* work within the prefered sizes given by the window */
2668     if (!(*w == self->area.width && *h == self->area.height)) {
2669         gint basew, baseh, minw, minh;
2670
2671         /* base size is substituted with min size if not specified */
2672         if (self->base_size.width || self->base_size.height) {
2673             basew = self->base_size.width;
2674             baseh = self->base_size.height;
2675         } else {
2676             basew = self->min_size.width;
2677             baseh = self->min_size.height;
2678         }
2679         /* min size is substituted with base size if not specified */
2680         if (self->min_size.width || self->min_size.height) {
2681             minw = self->min_size.width;
2682             minh = self->min_size.height;
2683         } else {
2684             minw = self->base_size.width;
2685             minh = self->base_size.height;
2686         }
2687
2688         /* if this is a user-requested resize, then check against min/max
2689            sizes */
2690
2691         /* smaller than min size or bigger than max size? */
2692         if (*w > self->max_size.width) *w = self->max_size.width;
2693         if (*w < minw) *w = minw;
2694         if (*h > self->max_size.height) *h = self->max_size.height;
2695         if (*h < minh) *h = minh;
2696
2697         *w -= basew;
2698         *h -= baseh;
2699
2700         /* keep to the increments */
2701         *w /= self->size_inc.width;
2702         *h /= self->size_inc.height;
2703
2704         /* you cannot resize to nothing */
2705         if (basew + *w < 1) *w = 1 - basew;
2706         if (baseh + *h < 1) *h = 1 - baseh;
2707
2708         /* save the logical size */
2709         *logicalw = self->size_inc.width > 1 ? *w : *w + basew;
2710         *logicalh = self->size_inc.height > 1 ? *h : *h + baseh;
2711
2712         *w *= self->size_inc.width;
2713         *h *= self->size_inc.height;
2714
2715         *w += basew;
2716         *h += baseh;
2717
2718         /* adjust the height to match the width for the aspect ratios.
2719            for this, min size is not substituted for base size ever. */
2720         *w -= self->base_size.width;
2721         *h -= self->base_size.height;
2722
2723         if (!self->fullscreen) {
2724             if (self->min_ratio)
2725                 if (*h * self->min_ratio > *w) {
2726                     *h = (gint)(*w / self->min_ratio);
2727
2728                     /* you cannot resize to nothing */
2729                     if (*h < 1) {
2730                         *h = 1;
2731                         *w = (gint)(*h * self->min_ratio);
2732                     }
2733                 }
2734             if (self->max_ratio)
2735                 if (*h * self->max_ratio < *w) {
2736                     *h = (gint)(*w / self->max_ratio);
2737
2738                     /* you cannot resize to nothing */
2739                     if (*h < 1) {
2740                         *h = 1;
2741                         *w = (gint)(*h * self->min_ratio);
2742                     }
2743                 }
2744         }
2745
2746         *w += self->base_size.width;
2747         *h += self->base_size.height;
2748     }
2749
2750     /* gets the frame's position */
2751     frame_client_gravity(self->frame, x, y, *w, *h);
2752
2753     /* these positions are frame positions, not client positions */
2754
2755     /* set the size and position if fullscreen */
2756     if (self->fullscreen) {
2757         Rect *a;
2758         guint i;
2759
2760         i = screen_find_monitor(&desired_area);
2761         a = screen_physical_area_monitor(i);
2762
2763         *x = a->x;
2764         *y = a->y;
2765         *w = a->width;
2766         *h = a->height;
2767
2768         user = FALSE; /* ignore if the client can't be moved/resized when it
2769                          is fullscreening */
2770     } else if (self->max_horz || self->max_vert) {
2771         Rect *a;
2772         guint i;
2773
2774         i = screen_find_monitor(&desired_area);
2775         a = screen_area_monitor(self->desktop, i);
2776
2777         /* set the size and position if maximized */
2778         if (self->max_horz) {
2779             *x = a->x;
2780             *w = a->width - self->frame->size.left - self->frame->size.right;
2781         }
2782         if (self->max_vert) {
2783             *y = a->y;
2784             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2785         }
2786
2787         user = FALSE; /* ignore if the client can't be moved/resized when it
2788                          is maximizing */
2789     }
2790
2791     /* gets the client's position */
2792     frame_frame_gravity(self->frame, x, y, *w, *h);
2793
2794     /* these override the above states! if you cant move you can't move! */
2795     if (user) {
2796         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2797             *x = self->area.x;
2798             *y = self->area.y;
2799         }
2800         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2801             *w = self->area.width;
2802             *h = self->area.height;
2803         }
2804     }
2805
2806     g_assert(*w > 0);
2807     g_assert(*h > 0);
2808 }
2809
2810
2811 void client_configure(ObClient *self, gint x, gint y, gint w, gint h, gint b,
2812                       gboolean user, gboolean final)
2813 {
2814     gint oldw, oldh;
2815     gboolean send_resize_client;
2816     gboolean moved = FALSE, resized = FALSE;
2817     gboolean fmoved, fresized;
2818     guint fdecor = self->frame->decorations;
2819     gboolean fhorz = self->frame->max_horz;
2820     gboolean fvert = self->frame->max_vert;
2821     gint logicalw, logicalh;
2822
2823     /* find the new x, y, width, and height (and logical size) */
2824     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2825
2826     /* set the logical size if things changed */
2827     if (!(w == self->area.width && h == self->area.height))
2828         SIZE_SET(self->logical_size, logicalw, logicalh);
2829
2830     /* figure out if we moved or resized or what */
2831     moved = x != self->area.x || y != self->area.y;
2832     resized = w != self->area.width || h != self->area.height ||
2833         b != self->border_width;
2834
2835     oldw = self->area.width;
2836     oldh = self->area.height;
2837     RECT_SET(self->area, x, y, w, h);
2838     self->border_width = b;
2839
2840     /* for app-requested resizes, always resize if 'resized' is true.
2841        for user-requested ones, only resize if final is true, or when
2842        resizing in redraw mode */
2843     send_resize_client = ((!user && resized) ||
2844                           (user && (final ||
2845                                     (resized && config_resize_redraw))));
2846
2847     /* if the client is enlarging, then resize the client before the frame */
2848     if (send_resize_client && (w > oldw || h > oldh)) {
2849         XWindowChanges changes;
2850         changes.x = -self->border_width;
2851         changes.y = -self->border_width;
2852         changes.width = MAX(w, oldw);
2853         changes.height = MAX(h, oldh);
2854         changes.border_width = self->border_width;
2855         XConfigureWindow(ob_display, self->window,
2856                          CWX|CWY|CWWidth|CWHeight|CWBorderWidth,
2857                          &changes);
2858         /* resize the plate to show the client padding color underneath */
2859         frame_adjust_client_area(self->frame);
2860     }
2861
2862     /* find the frame's dimensions and move/resize it */
2863     fmoved = moved;
2864     fresized = resized;
2865
2866     /* if decorations changed, then readjust everything for the frame */
2867     if (self->decorations != fdecor ||
2868         self->max_horz != fhorz || self->max_vert != fvert)
2869     {
2870         fmoved = fresized = TRUE;
2871     }
2872
2873     /* adjust the frame */
2874     if (fmoved || fresized)
2875         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2876
2877     if ((!user || (user && final)) && !resized)
2878     {
2879         XEvent event;
2880
2881         /* we have reset the client to 0 border width, so don't include
2882            it in these coords */
2883         POINT_SET(self->root_pos,
2884                   self->frame->area.x + self->frame->size.left -
2885                   self->border_width,
2886                   self->frame->area.y + self->frame->size.top -
2887                   self->border_width);
2888
2889         event.type = ConfigureNotify;
2890         event.xconfigure.display = ob_display;
2891         event.xconfigure.event = self->window;
2892         event.xconfigure.window = self->window;
2893
2894         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2895                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2896
2897         /* root window real coords */
2898         event.xconfigure.x = self->root_pos.x;
2899         event.xconfigure.y = self->root_pos.y;
2900         event.xconfigure.width = w;
2901         event.xconfigure.height = h;
2902         event.xconfigure.border_width = self->border_width;
2903         event.xconfigure.above = None;
2904         event.xconfigure.override_redirect = FALSE;
2905         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2906                    FALSE, StructureNotifyMask, &event);
2907     }
2908
2909     /* if the client is shrinking, then resize the frame before the client */
2910     if (send_resize_client && (w <= oldw && h <= oldh)) {
2911         /* resize the plate to show the client padding color underneath */
2912         frame_adjust_client_area(self->frame);
2913
2914         if (send_resize_client) {
2915             XWindowChanges changes;
2916             changes.x = -self->border_width;
2917             changes.y = -self->border_width;
2918             changes.width = w;
2919             changes.height = h;
2920             changes.border_width = self->border_width;
2921             XConfigureWindow(ob_display, self->window,
2922                              CWX|CWY|CWWidth|CWHeight|CWBorderWidth,
2923                              &changes);
2924         }
2925     }
2926
2927     XFlush(ob_display);
2928 }
2929
2930 void client_fullscreen(ObClient *self, gboolean fs)
2931 {
2932     gint x, y, w, h;
2933
2934     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2935         self->fullscreen == fs) return;                   /* already done */
2936
2937     self->fullscreen = fs;
2938     client_change_state(self); /* change the state hints on the client */
2939
2940     if (fs) {
2941         self->pre_fullscreen_area = self->area;
2942         /* if the window is maximized, its area isn't all that meaningful.
2943            save it's premax area instead. */
2944         if (self->max_horz) {
2945             self->pre_fullscreen_area.x = self->pre_max_area.x;
2946             self->pre_fullscreen_area.width = self->pre_max_area.width;
2947         }
2948         if (self->max_vert) {
2949             self->pre_fullscreen_area.y = self->pre_max_area.y;
2950             self->pre_fullscreen_area.height = self->pre_max_area.height;
2951         }
2952
2953         /* these will help configure_full figure out where to fullscreen
2954            the window */
2955         x = self->area.x;
2956         y = self->area.y;
2957         w = self->area.width;
2958         h = self->area.height;
2959     } else {
2960         g_assert(self->pre_fullscreen_area.width > 0 &&
2961                  self->pre_fullscreen_area.height > 0);
2962
2963         x = self->pre_fullscreen_area.x;
2964         y = self->pre_fullscreen_area.y;
2965         w = self->pre_fullscreen_area.width;
2966         h = self->pre_fullscreen_area.height;
2967         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
2968     }
2969
2970     client_setup_decor_and_functions(self, FALSE);
2971     client_move_resize(self, x, y, w, h);
2972
2973     /* and adjust our layer/stacking. do this after resizing the window,
2974        and applying decorations, because windows which fill the screen are
2975        considered "fullscreen" and it affects their layer */
2976     client_calc_layer(self);
2977
2978     if (fs) {
2979         /* try focus us when we go into fullscreen mode */
2980         client_focus(self);
2981     }
2982 }
2983
2984 static void client_iconify_recursive(ObClient *self,
2985                                      gboolean iconic, gboolean curdesk,
2986                                      gboolean hide_animation)
2987 {
2988     GSList *it;
2989     gboolean changed = FALSE;
2990
2991
2992     if (self->iconic != iconic) {
2993         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
2994                  self->window);
2995
2996         if (iconic) {
2997             /* don't let non-normal windows iconify along with their parents
2998                or whatever */
2999             if (client_normal(self)) {
3000                 self->iconic = iconic;
3001
3002                 /* update the focus lists.. iconic windows go to the bottom of
3003                    the list */
3004                 focus_order_to_bottom(self);
3005
3006                 changed = TRUE;
3007             }
3008         } else {
3009             self->iconic = iconic;
3010
3011             if (curdesk && self->desktop != screen_desktop &&
3012                 self->desktop != DESKTOP_ALL)
3013                 client_set_desktop(self, screen_desktop, FALSE);
3014
3015             /* this puts it after the current focused window */
3016             focus_order_remove(self);
3017             focus_order_add_new(self);
3018
3019             changed = TRUE;
3020         }
3021     }
3022
3023     if (changed) {
3024         client_change_state(self);
3025         if (config_animate_iconify && !hide_animation)
3026             frame_begin_iconify_animation(self->frame, iconic);
3027         /* do this after starting the animation so it doesn't flash */
3028         client_showhide(self);
3029     }
3030
3031     /* iconify all direct transients, and deiconify all transients
3032        (non-direct too) */
3033     for (it = self->transients; it; it = g_slist_next(it))
3034         if (it->data != self)
3035             if (client_is_direct_child(self, it->data) || !iconic)
3036                 client_iconify_recursive(it->data, iconic, curdesk,
3037                                          hide_animation);
3038 }
3039
3040 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3041                     gboolean hide_animation)
3042 {
3043     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3044         /* move up the transient chain as far as possible first */
3045         self = client_search_top_normal_parent(self);
3046         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3047     }
3048 }
3049
3050 void client_maximize(ObClient *self, gboolean max, gint dir)
3051 {
3052     gint x, y, w, h;
3053
3054     g_assert(dir == 0 || dir == 1 || dir == 2);
3055     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3056
3057     /* check if already done */
3058     if (max) {
3059         if (dir == 0 && self->max_horz && self->max_vert) return;
3060         if (dir == 1 && self->max_horz) return;
3061         if (dir == 2 && self->max_vert) return;
3062     } else {
3063         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3064         if (dir == 1 && !self->max_horz) return;
3065         if (dir == 2 && !self->max_vert) return;
3066     }
3067
3068     /* these will help configure_full figure out which screen to fill with
3069        the window */
3070     x = self->area.x;
3071     y = self->area.y;
3072     w = self->area.width;
3073     h = self->area.height;
3074
3075     if (max) {
3076         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3077             RECT_SET(self->pre_max_area,
3078                      self->area.x, self->pre_max_area.y,
3079                      self->area.width, self->pre_max_area.height);
3080         }
3081         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3082             RECT_SET(self->pre_max_area,
3083                      self->pre_max_area.x, self->area.y,
3084                      self->pre_max_area.width, self->area.height);
3085         }
3086     } else {
3087         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3088             g_assert(self->pre_max_area.width > 0);
3089
3090             x = self->pre_max_area.x;
3091             w = self->pre_max_area.width;
3092
3093             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3094                      0, self->pre_max_area.height);
3095         }
3096         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3097             g_assert(self->pre_max_area.height > 0);
3098
3099             y = self->pre_max_area.y;
3100             h = self->pre_max_area.height;
3101
3102             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3103                      self->pre_max_area.width, 0);
3104         }
3105     }
3106
3107     if (dir == 0 || dir == 1) /* horz */
3108         self->max_horz = max;
3109     if (dir == 0 || dir == 2) /* vert */
3110         self->max_vert = max;
3111
3112     client_change_state(self); /* change the state hints on the client */
3113
3114     client_setup_decor_and_functions(self, FALSE);
3115     client_move_resize(self, x, y, w, h);
3116 }
3117
3118 void client_shade(ObClient *self, gboolean shade)
3119 {
3120     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3121          shade) ||                         /* can't shade */
3122         self->shaded == shade) return;     /* already done */
3123
3124     self->shaded = shade;
3125     client_change_state(self);
3126     client_change_wm_state(self); /* the window is being hidden/shown */
3127     /* resize the frame to just the titlebar */
3128     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3129 }
3130
3131 void client_close(ObClient *self)
3132 {
3133     XEvent ce;
3134
3135     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3136
3137     /* in the case that the client provides no means to requesting that it
3138        close, we just kill it */
3139     if (!self->delete_window)
3140         client_kill(self);
3141
3142     /*
3143       XXX: itd be cool to do timeouts and shit here for killing the client's
3144       process off
3145       like... if the window is around after 5 seconds, then the close button
3146       turns a nice red, and if this function is called again, the client is
3147       explicitly killed.
3148     */
3149
3150     ce.xclient.type = ClientMessage;
3151     ce.xclient.message_type =  prop_atoms.wm_protocols;
3152     ce.xclient.display = ob_display;
3153     ce.xclient.window = self->window;
3154     ce.xclient.format = 32;
3155     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3156     ce.xclient.data.l[1] = event_curtime;
3157     ce.xclient.data.l[2] = 0l;
3158     ce.xclient.data.l[3] = 0l;
3159     ce.xclient.data.l[4] = 0l;
3160     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3161 }
3162
3163 void client_kill(ObClient *self)
3164 {
3165     XKillClient(ob_display, self->window);
3166 }
3167
3168 void client_hilite(ObClient *self, gboolean hilite)
3169 {
3170     if (self->demands_attention == hilite)
3171         return; /* no change */
3172
3173     /* don't allow focused windows to hilite */
3174     self->demands_attention = hilite && !client_focused(self);
3175     if (self->frame != NULL) { /* if we're mapping, just set the state */
3176         if (self->demands_attention)
3177             frame_flash_start(self->frame);
3178         else
3179             frame_flash_stop(self->frame);
3180         client_change_state(self);
3181     }
3182 }
3183
3184 void client_set_desktop_recursive(ObClient *self,
3185                                   guint target,
3186                                   gboolean donthide)
3187 {
3188     guint old;
3189     GSList *it;
3190
3191     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3192
3193         ob_debug("Setting desktop %u\n", target+1);
3194
3195         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3196
3197         old = self->desktop;
3198         self->desktop = target;
3199         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3200         /* the frame can display the current desktop state */
3201         frame_adjust_state(self->frame);
3202         /* 'move' the window to the new desktop */
3203         if (!donthide)
3204             client_showhide(self);
3205         /* raise if it was not already on the desktop */
3206         if (old != DESKTOP_ALL)
3207             stacking_raise(CLIENT_AS_WINDOW(self));
3208         if (STRUT_EXISTS(self->strut))
3209             screen_update_areas();
3210     }
3211
3212     /* move all transients */
3213     for (it = self->transients; it; it = g_slist_next(it))
3214         if (it->data != self)
3215             if (client_is_direct_child(self, it->data))
3216                 client_set_desktop_recursive(it->data, target, donthide);
3217 }
3218
3219 void client_set_desktop(ObClient *self, guint target,
3220                         gboolean donthide)
3221 {
3222     self = client_search_top_normal_parent(self);
3223     client_set_desktop_recursive(self, target, donthide);
3224 }
3225
3226 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3227 {
3228     while (child != parent &&
3229            child->transient_for && child->transient_for != OB_TRAN_GROUP)
3230         child = child->transient_for;
3231     return child == parent;
3232 }
3233
3234 ObClient *client_search_modal_child(ObClient *self)
3235 {
3236     GSList *it;
3237     ObClient *ret;
3238
3239     for (it = self->transients; it; it = g_slist_next(it)) {
3240         ObClient *c = it->data;
3241         if ((ret = client_search_modal_child(c))) return ret;
3242         if (c->modal) return c;
3243     }
3244     return NULL;
3245 }
3246
3247 gboolean client_validate(ObClient *self)
3248 {
3249     XEvent e;
3250
3251     XSync(ob_display, FALSE); /* get all events on the server */
3252
3253     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3254         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3255         XPutBackEvent(ob_display, &e);
3256         return FALSE;
3257     }
3258
3259     return TRUE;
3260 }
3261
3262 void client_set_wm_state(ObClient *self, glong state)
3263 {
3264     if (state == self->wmstate) return; /* no change */
3265
3266     switch (state) {
3267     case IconicState:
3268         client_iconify(self, TRUE, TRUE, FALSE);
3269         break;
3270     case NormalState:
3271         client_iconify(self, FALSE, TRUE, FALSE);
3272         break;
3273     }
3274 }
3275
3276 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3277 {
3278     gboolean shaded = self->shaded;
3279     gboolean fullscreen = self->fullscreen;
3280     gboolean undecorated = self->undecorated;
3281     gboolean max_horz = self->max_horz;
3282     gboolean max_vert = self->max_vert;
3283     gboolean modal = self->modal;
3284     gboolean iconic = self->iconic;
3285     gboolean demands_attention = self->demands_attention;
3286     gboolean above = self->above;
3287     gboolean below = self->below;
3288     gint i;
3289
3290     if (!(action == prop_atoms.net_wm_state_add ||
3291           action == prop_atoms.net_wm_state_remove ||
3292           action == prop_atoms.net_wm_state_toggle))
3293         /* an invalid action was passed to the client message, ignore it */
3294         return;
3295
3296     for (i = 0; i < 2; ++i) {
3297         Atom state = i == 0 ? data1 : data2;
3298
3299         if (!state) continue;
3300
3301         /* if toggling, then pick whether we're adding or removing */
3302         if (action == prop_atoms.net_wm_state_toggle) {
3303             if (state == prop_atoms.net_wm_state_modal)
3304                 action = modal ? prop_atoms.net_wm_state_remove :
3305                     prop_atoms.net_wm_state_add;
3306             else if (state == prop_atoms.net_wm_state_maximized_vert)
3307                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3308                     prop_atoms.net_wm_state_add;
3309             else if (state == prop_atoms.net_wm_state_maximized_horz)
3310                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3311                     prop_atoms.net_wm_state_add;
3312             else if (state == prop_atoms.net_wm_state_shaded)
3313                 action = shaded ? prop_atoms.net_wm_state_remove :
3314                     prop_atoms.net_wm_state_add;
3315             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3316                 action = self->skip_taskbar ?
3317                     prop_atoms.net_wm_state_remove :
3318                     prop_atoms.net_wm_state_add;
3319             else if (state == prop_atoms.net_wm_state_skip_pager)
3320                 action = self->skip_pager ?
3321                     prop_atoms.net_wm_state_remove :
3322                     prop_atoms.net_wm_state_add;
3323             else if (state == prop_atoms.net_wm_state_hidden)
3324                 action = self->iconic ?
3325                     prop_atoms.net_wm_state_remove :
3326                     prop_atoms.net_wm_state_add;
3327             else if (state == prop_atoms.net_wm_state_fullscreen)
3328                 action = fullscreen ?
3329                     prop_atoms.net_wm_state_remove :
3330                     prop_atoms.net_wm_state_add;
3331             else if (state == prop_atoms.net_wm_state_above)
3332                 action = self->above ? prop_atoms.net_wm_state_remove :
3333                     prop_atoms.net_wm_state_add;
3334             else if (state == prop_atoms.net_wm_state_below)
3335                 action = self->below ? prop_atoms.net_wm_state_remove :
3336                     prop_atoms.net_wm_state_add;
3337             else if (state == prop_atoms.net_wm_state_demands_attention)
3338                 action = self->demands_attention ?
3339                     prop_atoms.net_wm_state_remove :
3340                     prop_atoms.net_wm_state_add;
3341             else if (state == prop_atoms.ob_wm_state_undecorated)
3342                 action = undecorated ? prop_atoms.net_wm_state_remove :
3343                     prop_atoms.net_wm_state_add;
3344         }
3345
3346         if (action == prop_atoms.net_wm_state_add) {
3347             if (state == prop_atoms.net_wm_state_modal) {
3348                 modal = TRUE;
3349             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3350                 max_vert = TRUE;
3351             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3352                 max_horz = TRUE;
3353             } else if (state == prop_atoms.net_wm_state_shaded) {
3354                 shaded = TRUE;
3355             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3356                 self->skip_taskbar = TRUE;
3357             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3358                 self->skip_pager = TRUE;
3359             } else if (state == prop_atoms.net_wm_state_hidden) {
3360                 iconic = TRUE;
3361             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3362                 fullscreen = TRUE;
3363             } else if (state == prop_atoms.net_wm_state_above) {
3364                 above = TRUE;
3365                 below = FALSE;
3366             } else if (state == prop_atoms.net_wm_state_below) {
3367                 above = FALSE;
3368                 below = TRUE;
3369             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3370                 demands_attention = TRUE;
3371             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3372                 undecorated = TRUE;
3373             }
3374
3375         } else { /* action == prop_atoms.net_wm_state_remove */
3376             if (state == prop_atoms.net_wm_state_modal) {
3377                 modal = FALSE;
3378             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3379                 max_vert = FALSE;
3380             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3381                 max_horz = FALSE;
3382             } else if (state == prop_atoms.net_wm_state_shaded) {
3383                 shaded = FALSE;
3384             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3385                 self->skip_taskbar = FALSE;
3386             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3387                 self->skip_pager = FALSE;
3388             } else if (state == prop_atoms.net_wm_state_hidden) {
3389                 iconic = FALSE;
3390             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3391                 fullscreen = FALSE;
3392             } else if (state == prop_atoms.net_wm_state_above) {
3393                 above = FALSE;
3394             } else if (state == prop_atoms.net_wm_state_below) {
3395                 below = FALSE;
3396             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3397                 demands_attention = FALSE;
3398             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3399                 undecorated = FALSE;
3400             }
3401         }
3402     }
3403
3404     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3405         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3406             /* toggling both */
3407             if (max_horz == max_vert) { /* both going the same way */
3408                 client_maximize(self, max_horz, 0);
3409             } else {
3410                 client_maximize(self, max_horz, 1);
3411                 client_maximize(self, max_vert, 2);
3412             }
3413         } else {
3414             /* toggling one */
3415             if (max_horz != self->max_horz)
3416                 client_maximize(self, max_horz, 1);
3417             else
3418                 client_maximize(self, max_vert, 2);
3419         }
3420     }
3421     /* change fullscreen state before shading, as it will affect if the window
3422        can shade or not */
3423     if (fullscreen != self->fullscreen)
3424         client_fullscreen(self, fullscreen);
3425     if (shaded != self->shaded)
3426         client_shade(self, shaded);
3427     if (undecorated != self->undecorated)
3428         client_set_undecorated(self, undecorated);
3429     if (above != self->above || below != self->below) {
3430         self->above = above;
3431         self->below = below;
3432         client_calc_layer(self);
3433     }
3434
3435     if (modal != self->modal) {
3436         self->modal = modal;
3437         /* when a window changes modality, then its stacking order with its
3438            transients needs to change */
3439         stacking_raise(CLIENT_AS_WINDOW(self));
3440
3441         /* it also may get focused. if something is focused that shouldn't
3442            be focused anymore, then move the focus */
3443         if (focus_client && client_focus_target(focus_client) != focus_client)
3444             client_focus(focus_client);
3445     }
3446
3447     if (iconic != self->iconic)
3448         client_iconify(self, iconic, FALSE, FALSE);
3449
3450     if (demands_attention != self->demands_attention)
3451         client_hilite(self, demands_attention);
3452
3453     client_change_state(self); /* change the hint to reflect these changes */
3454 }
3455
3456 ObClient *client_focus_target(ObClient *self)
3457 {
3458     ObClient *child = NULL;
3459
3460     child = client_search_modal_child(self);
3461     if (child) return child;
3462     return self;
3463 }
3464
3465 gboolean client_can_focus(ObClient *self)
3466 {
3467     /* choose the correct target */
3468     self = client_focus_target(self);
3469
3470     if (!self->frame->visible)
3471         return FALSE;
3472
3473     if (!(self->can_focus || self->focus_notify))
3474         return FALSE;
3475
3476     return TRUE;
3477 }
3478
3479 gboolean client_focus(ObClient *self)
3480 {
3481     /* we might not focus this window, so if we have modal children which would
3482        be focused instead, bring them to this desktop */
3483     client_bring_modal_windows(self);
3484
3485     /* choose the correct target */
3486     self = client_focus_target(self);
3487
3488     if (!client_can_focus(self)) {
3489         if (!self->frame->visible) {
3490             /* update the focus lists */
3491             focus_order_to_top(self);
3492         }
3493         return FALSE;
3494     }
3495
3496     ob_debug_type(OB_DEBUG_FOCUS,
3497                   "Focusing client \"%s\" (0x%x) at time %u\n",
3498                   self->title, self->window, event_curtime);
3499
3500     /* if there is a grab going on, then we need to cancel it. if we move
3501        focus during the grab, applications will get NotifyWhileGrabbed events
3502        and ignore them !
3503
3504        actions should not rely on being able to move focus during an
3505        interactive grab.
3506     */
3507     event_cancel_all_key_grabs();
3508
3509     xerror_set_ignore(TRUE);
3510     xerror_occured = FALSE;
3511
3512     if (self->can_focus) {
3513         /* This can cause a BadMatch error with CurrentTime, or if an app
3514            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3515         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3516                        event_curtime);
3517     }
3518
3519     if (self->focus_notify) {
3520         XEvent ce;
3521         ce.xclient.type = ClientMessage;
3522         ce.xclient.message_type = prop_atoms.wm_protocols;
3523         ce.xclient.display = ob_display;
3524         ce.xclient.window = self->window;
3525         ce.xclient.format = 32;
3526         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3527         ce.xclient.data.l[1] = event_curtime;
3528         ce.xclient.data.l[2] = 0l;
3529         ce.xclient.data.l[3] = 0l;
3530         ce.xclient.data.l[4] = 0l;
3531         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3532     }
3533
3534     xerror_set_ignore(FALSE);
3535
3536     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3537     return !xerror_occured;
3538 }
3539
3540 /*! Present the client to the user.
3541   @param raise If the client should be raised or not. You should only set
3542                raise to false if you don't care if the window is completely
3543                hidden.
3544 */
3545 static void client_present(ObClient *self, gboolean here, gboolean raise)
3546 {
3547     /* if using focus_delay, stop the timer now so that focus doesn't
3548        go moving on us */
3549     event_halt_focus_delay();
3550
3551     if (client_normal(self) && screen_showing_desktop)
3552         screen_show_desktop(FALSE, self);
3553     if (self->iconic)
3554         client_iconify(self, FALSE, here, FALSE);
3555     if (self->desktop != DESKTOP_ALL &&
3556         self->desktop != screen_desktop)
3557     {
3558         if (here)
3559             client_set_desktop(self, screen_desktop, FALSE);
3560         else
3561             screen_set_desktop(self->desktop, FALSE);
3562     } else if (!self->frame->visible)
3563         /* if its not visible for other reasons, then don't mess
3564            with it */
3565         return;
3566     if (self->shaded)
3567         client_shade(self, FALSE);
3568     if (raise)
3569         stacking_raise(CLIENT_AS_WINDOW(self));
3570
3571     client_focus(self);
3572 }
3573
3574 void client_activate(ObClient *self, gboolean here, gboolean user)
3575 {
3576     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3577     gboolean allow = FALSE;
3578
3579     /* if the request came from the user, or if nothing is focused, then grant
3580        the request.
3581        if the currently focused app doesn't set a user_time, then it can't
3582        benefit from any focus stealing prevention.
3583     */
3584     if (user || !focus_client || !last_time)
3585         allow = TRUE;
3586     /* otherwise, if they didn't give a time stamp or if it is too old, they
3587        don't get focus */
3588     else
3589         allow = event_curtime && event_time_after(event_curtime, last_time);
3590
3591     ob_debug_type(OB_DEBUG_FOCUS,
3592                   "Want to activate window 0x%x with time %u (last time %u), "
3593                   "source=%s allowing? %d\n",
3594                   self->window, event_curtime, last_time,
3595                   (user ? "user" : "application"), allow);
3596
3597     if (allow)
3598         client_present(self, here, TRUE);
3599     else
3600         /* don't focus it but tell the user it wants attention */
3601         client_hilite(self, TRUE);
3602 }
3603
3604 static void client_bring_windows_recursive(ObClient *self,
3605                                            guint desktop,
3606                                            gboolean helpers,
3607                                            gboolean modals)
3608 {
3609     GSList *it;
3610
3611     for (it = self->transients; it; it = g_slist_next(it))
3612         client_bring_windows_recursive(it->data, desktop, helpers, modals);
3613
3614     if (((helpers && client_helper(self)) ||
3615          (modals && self->modal))&&
3616         self->desktop != desktop && self->desktop != DESKTOP_ALL)
3617     {
3618         client_set_desktop(self, desktop, FALSE);
3619     }
3620 }
3621
3622 void client_bring_helper_windows(ObClient *self)
3623 {
3624     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE);
3625 }
3626
3627 void client_bring_modal_windows(ObClient *self)
3628 {
3629     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE);
3630 }
3631
3632 gboolean client_focused(ObClient *self)
3633 {
3634     return self == focus_client;
3635 }
3636
3637 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3638 {
3639     guint i;
3640     gulong min_diff, min_i;
3641
3642     if (!self->nicons) {
3643         ObClientIcon *parent = NULL;
3644
3645         if (self->transient_for) {
3646             if (self->transient_for != OB_TRAN_GROUP)
3647                 parent = client_icon_recursive(self->transient_for, w, h);
3648             else {
3649                 GSList *it;
3650                 for (it = self->group->members; it; it = g_slist_next(it)) {
3651                     ObClient *c = it->data;
3652                     if (c != self && !c->transient_for) {
3653                         if ((parent = client_icon_recursive(c, w, h)))
3654                             break;
3655                     }
3656                 }
3657             }
3658         }
3659
3660         return parent;
3661     }
3662
3663     /* some kind of crappy approximation to find the icon closest in size to
3664        what we requested, but icons are generally all the same ratio as
3665        eachother so it's good enough. */
3666
3667     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3668     min_i = 0;
3669
3670     for (i = 1; i < self->nicons; ++i) {
3671         gulong diff;
3672
3673         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3674         if (diff < min_diff) {
3675             min_diff = diff;
3676             min_i = i;
3677         }
3678     }
3679     return &self->icons[min_i];
3680 }
3681
3682 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3683 {
3684     ObClientIcon *ret;
3685     static ObClientIcon deficon;
3686
3687     if (!(ret = client_icon_recursive(self, w, h))) {
3688         deficon.width = deficon.height = 48;
3689         deficon.data = ob_rr_theme->def_win_icon;
3690         ret = &deficon;
3691     }
3692     return ret;
3693 }
3694
3695 void client_set_layer(ObClient *self, gint layer)
3696 {
3697     if (layer < 0) {
3698         self->below = TRUE;
3699         self->above = FALSE;
3700     } else if (layer == 0) {
3701         self->below = self->above = FALSE;
3702     } else {
3703         self->below = FALSE;
3704         self->above = TRUE;
3705     }
3706     client_calc_layer(self);
3707     client_change_state(self); /* reflect this in the state hints */
3708 }
3709
3710 void client_set_undecorated(ObClient *self, gboolean undecorated)
3711 {
3712     if (self->undecorated != undecorated &&
3713         /* don't let it undecorate if the function is missing, but let
3714            it redecorate */
3715         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3716     {
3717         self->undecorated = undecorated;
3718         client_setup_decor_and_functions(self, TRUE);
3719         client_change_state(self); /* reflect this in the state hints */
3720     }
3721 }
3722
3723 guint client_monitor(ObClient *self)
3724 {
3725     return screen_find_monitor(&self->frame->area);
3726 }
3727
3728 ObClient *client_search_top_normal_parent(ObClient *self)
3729 {
3730     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3731            client_normal(self->transient_for))
3732         self = self->transient_for;
3733     return self;
3734 }
3735
3736 static GSList *client_search_all_top_parents_internal(ObClient *self,
3737                                                       gboolean bylayer,
3738                                                       ObStackingLayer layer)
3739 {
3740     GSList *ret = NULL;
3741
3742     /* move up the direct transient chain as far as possible */
3743     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3744            (!bylayer || self->transient_for->layer == layer) &&
3745            client_normal(self->transient_for))
3746         self = self->transient_for;
3747
3748     if (!self->transient_for)
3749         ret = g_slist_prepend(ret, self);
3750     else {
3751             GSList *it;
3752
3753             g_assert(self->group);
3754
3755             for (it = self->group->members; it; it = g_slist_next(it)) {
3756                 ObClient *c = it->data;
3757
3758                 if (!c->transient_for && client_normal(c) &&
3759                     (!bylayer || c->layer == layer))
3760                 {
3761                     ret = g_slist_prepend(ret, c);
3762                 }
3763             }
3764
3765             if (ret == NULL) /* no group parents */
3766                 ret = g_slist_prepend(ret, self);
3767     }
3768
3769     return ret;
3770 }
3771
3772 GSList *client_search_all_top_parents(ObClient *self)
3773 {
3774     return client_search_all_top_parents_internal(self, FALSE, 0);
3775 }
3776
3777 GSList *client_search_all_top_parents_layer(ObClient *self)
3778 {
3779     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3780 }
3781
3782 ObClient *client_search_focus_parent(ObClient *self)
3783 {
3784     if (self->transient_for) {
3785         if (self->transient_for != OB_TRAN_GROUP) {
3786             if (client_focused(self->transient_for))
3787                 return self->transient_for;
3788         } else {
3789             GSList *it;
3790
3791             for (it = self->group->members; it; it = g_slist_next(it)) {
3792                 ObClient *c = it->data;
3793
3794                 /* checking transient_for prevents infinate loops! */
3795                 if (c != self && !c->transient_for)
3796                     if (client_focused(c))
3797                         return c;
3798             }
3799         }
3800     }
3801
3802     return NULL;
3803 }
3804
3805 ObClient *client_search_parent(ObClient *self, ObClient *search)
3806 {
3807     if (self->transient_for) {
3808         if (self->transient_for != OB_TRAN_GROUP) {
3809             if (self->transient_for == search)
3810                 return search;
3811         } else {
3812             GSList *it;
3813
3814             for (it = self->group->members; it; it = g_slist_next(it)) {
3815                 ObClient *c = it->data;
3816
3817                 /* checking transient_for prevents infinate loops! */
3818                 if (c != self && !c->transient_for)
3819                     if (c == search)
3820                         return search;
3821             }
3822         }
3823     }
3824
3825     return NULL;
3826 }
3827
3828 ObClient *client_search_transient(ObClient *self, ObClient *search)
3829 {
3830     GSList *sit;
3831
3832     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3833         if (sit->data == search)
3834             return search;
3835         if (client_search_transient(sit->data, search))
3836             return search;
3837     }
3838     return NULL;
3839 }
3840
3841 #define WANT_EDGE(cur, c) \
3842             if(cur == c)                                                      \
3843                 continue;                                                     \
3844             if(!client_normal(cur))                                           \
3845                 continue;                                                     \
3846             if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL) \
3847                 continue;                                                     \
3848             if(cur->iconic)                                                   \
3849                 continue;
3850
3851 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3852             if ((his_edge_start >= my_edge_start && \
3853                  his_edge_start <= my_edge_end) ||  \
3854                 (my_edge_start >= his_edge_start && \
3855                  my_edge_start <= his_edge_end))    \
3856                 dest = his_offset;
3857
3858 /* finds the nearest edge in the given direction from the current client
3859  * note to self: the edge is the -frame- edge (the actual one), not the
3860  * client edge.
3861  */
3862 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3863 {
3864     gint dest, monitor_dest;
3865     gint my_edge_start, my_edge_end, my_offset;
3866     GList *it;
3867     Rect *a, *monitor;
3868
3869     if(!client_list)
3870         return -1;
3871
3872     a = screen_area(c->desktop);
3873     monitor = screen_area_monitor(c->desktop, client_monitor(c));
3874
3875     switch(dir) {
3876     case OB_DIRECTION_NORTH:
3877         my_edge_start = c->frame->area.x;
3878         my_edge_end = c->frame->area.x + c->frame->area.width;
3879         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3880
3881         /* default: top of screen */
3882         dest = a->y + (hang ? c->frame->area.height : 0);
3883         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3884         /* if the monitor edge comes before the screen edge, */
3885         /* use that as the destination instead. (For xinerama) */
3886         if (monitor_dest != dest && my_offset > monitor_dest)
3887             dest = monitor_dest;
3888
3889         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3890             gint his_edge_start, his_edge_end, his_offset;
3891             ObClient *cur = it->data;
3892
3893             WANT_EDGE(cur, c)
3894
3895             his_edge_start = cur->frame->area.x;
3896             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3897             his_offset = cur->frame->area.y +
3898                          (hang ? 0 : cur->frame->area.height);
3899
3900             if(his_offset + 1 > my_offset)
3901                 continue;
3902
3903             if(his_offset < dest)
3904                 continue;
3905
3906             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3907         }
3908         break;
3909     case OB_DIRECTION_SOUTH:
3910         my_edge_start = c->frame->area.x;
3911         my_edge_end = c->frame->area.x + c->frame->area.width;
3912         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3913
3914         /* default: bottom of screen */
3915         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3916         monitor_dest = monitor->y + monitor->height -
3917                        (hang ? c->frame->area.height : 0);
3918         /* if the monitor edge comes before the screen edge, */
3919         /* use that as the destination instead. (For xinerama) */
3920         if (monitor_dest != dest && my_offset < monitor_dest)
3921             dest = monitor_dest;
3922
3923         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3924             gint his_edge_start, his_edge_end, his_offset;
3925             ObClient *cur = it->data;
3926
3927             WANT_EDGE(cur, c)
3928
3929             his_edge_start = cur->frame->area.x;
3930             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3931             his_offset = cur->frame->area.y +
3932                          (hang ? cur->frame->area.height : 0);
3933
3934
3935             if(his_offset - 1 < my_offset)
3936                 continue;
3937
3938             if(his_offset > dest)
3939                 continue;
3940
3941             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3942         }
3943         break;
3944     case OB_DIRECTION_WEST:
3945         my_edge_start = c->frame->area.y;
3946         my_edge_end = c->frame->area.y + c->frame->area.height;
3947         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3948
3949         /* default: leftmost egde of screen */
3950         dest = a->x + (hang ? c->frame->area.width : 0);
3951         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3952         /* if the monitor edge comes before the screen edge, */
3953         /* use that as the destination instead. (For xinerama) */
3954         if (monitor_dest != dest && my_offset > monitor_dest)
3955             dest = monitor_dest;
3956
3957         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3958             gint his_edge_start, his_edge_end, his_offset;
3959             ObClient *cur = it->data;
3960
3961             WANT_EDGE(cur, c)
3962
3963             his_edge_start = cur->frame->area.y;
3964             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3965             his_offset = cur->frame->area.x +
3966                          (hang ? 0 : cur->frame->area.width);
3967
3968             if(his_offset + 1 > my_offset)
3969                 continue;
3970
3971             if(his_offset < dest)
3972                 continue;
3973
3974             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3975         }
3976        break;
3977     case OB_DIRECTION_EAST:
3978         my_edge_start = c->frame->area.y;
3979         my_edge_end = c->frame->area.y + c->frame->area.height;
3980         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3981
3982         /* default: rightmost edge of screen */
3983         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3984         monitor_dest = monitor->x + monitor->width -
3985                        (hang ? c->frame->area.width : 0);
3986         /* if the monitor edge comes before the screen edge, */
3987         /* use that as the destination instead. (For xinerama) */
3988         if (monitor_dest != dest && my_offset < monitor_dest)
3989             dest = monitor_dest;
3990
3991         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3992             gint his_edge_start, his_edge_end, his_offset;
3993             ObClient *cur = it->data;
3994
3995             WANT_EDGE(cur, c)
3996
3997             his_edge_start = cur->frame->area.y;
3998             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3999             his_offset = cur->frame->area.x +
4000                          (hang ? cur->frame->area.width : 0);
4001
4002             if(his_offset - 1 < my_offset)
4003                 continue;
4004
4005             if(his_offset > dest)
4006                 continue;
4007
4008             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4009         }
4010         break;
4011     case OB_DIRECTION_NORTHEAST:
4012     case OB_DIRECTION_SOUTHEAST:
4013     case OB_DIRECTION_NORTHWEST:
4014     case OB_DIRECTION_SOUTHWEST:
4015         /* not implemented */
4016     default:
4017         g_assert_not_reached();
4018         dest = 0; /* suppress warning */
4019     }
4020     return dest;
4021 }
4022
4023 ObClient* client_under_pointer()
4024 {
4025     gint x, y;
4026     GList *it;
4027     ObClient *ret = NULL;
4028
4029     if (screen_pointer_pos(&x, &y)) {
4030         for (it = stacking_list; it; it = g_list_next(it)) {
4031             if (WINDOW_IS_CLIENT(it->data)) {
4032                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4033                 if (c->frame->visible &&
4034                     /* ignore all animating windows */
4035                     !frame_iconify_animating(c->frame) &&
4036                     RECT_CONTAINS(c->frame->area, x, y))
4037                 {
4038                     ret = c;
4039                     break;
4040                 }
4041             }
4042         }
4043     }
4044     return ret;
4045 }
4046
4047 gboolean client_has_group_siblings(ObClient *self)
4048 {
4049     return self->group && self->group->members->next;
4050 }