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                                        gint x, gint y, gint w, gint h);
  83 static void client_restore_session_state(ObClient *self);
  84 static gboolean client_restore_session_stacking(ObClient *self);
  85 static ObAppSettings *client_get_settings_state(ObClient *self);
  86 static void client_update_transient_tree(ObClient *self,
  87                                          ObGroup *oldgroup, ObGroup *newgroup,
  88                                          ObClient* oldparent,
  89                                          ObClient *newparent);
  90 static void client_present(ObClient *self, gboolean here, gboolean raise);
  91 static GSList *client_search_all_top_parents_internal(ObClient *self,
  92                                                       gboolean bylayer,
  93                                                       ObStackingLayer layer);
  94 static void client_call_notifies(ObClient *self, GSList *list);
  95
  96 void client_startup(gboolean reconfig)
  97 {
  98     if (reconfig) return;
  99
 100     client_set_list();
 101 }
 102
 103 void client_shutdown(gboolean reconfig)
 104 {
 105     if (reconfig) return;
 106 }
 107
 108 static void client_call_notifies(ObClient *self, GSList *list)
 109 {
 110     GSList *it;
 111
 112     for (it = list; it; it = g_slist_next(it)) {
 113         ClientCallback *d = it->data;
 114         d->func(self, d->data);
 115     }
 116 }
 117
 118 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 119 {
 120     ClientCallback *d = g_new(ClientCallback, 1);
 121     d->func = func;
 122     d->data = data;
 123     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 124 }
 125
 126 void client_remove_destroy_notify(ObClientCallback func)
 127 {
 128     GSList *it;
 129
 130     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 131         ClientCallback *d = it->data;
 132         if (d->func == func) {
 133             g_free(d);
 134             client_destroy_notifies =
 135                 g_slist_delete_link(client_destroy_notifies, it);
 136             break;
 137         }
 138     }
 139 }
 140
 141 void client_set_list()
 142 {
 143     Window *windows, *win_it;
 144     GList *it;
 145     guint size = g_list_length(client_list);
 146
 147     /* create an array of the window ids */
 148     if (size > 0) {
 149         windows = g_new(Window, size);
 150         win_it = windows;
 151         for (it = client_list; it; it = g_list_next(it), ++win_it)
 152             *win_it = ((ObClient*)it->data)->window;
 153     } else
 154         windows = NULL;
 155
 156     PROP_SETA32(RootWindow(ob_display, ob_screen),
 157                 net_client_list, window, (gulong*)windows, size);
 158
 159     if (windows)
 160         g_free(windows);
 161
 162     stacking_set_list();
 163 }
 164
 165 /*
 166   void client_foreach_transient(ObClient *self, ObClientForeachFunc func, gpointer data)
 167   {
 168   GSList *it;
 169
 170   for (it = self->transients; it; it = g_slist_next(it)) {
 171   if (!func(it->data, data)) return;
 172   client_foreach_transient(it->data, func, data);
 173   }
 174   }
 175
 176   void client_foreach_ancestor(ObClient *self, ObClientForeachFunc func, gpointer data)
 177   {
 178   if (self->transient_for) {
 179   if (self->transient_for != OB_TRAN_GROUP) {
 180   if (!func(self->transient_for, data)) return;
 181   client_foreach_ancestor(self->transient_for, func, data);
 182   } else {
 183   GSList *it;
 184
 185   for (it = self->group->members; it; it = g_slist_next(it))
 186   if (it->data != self &&
 187   !((ObClient*)it->data)->transient_for) {
 188   if (!func(it->data, data)) return;
 189   client_foreach_ancestor(it->data, func, data);
 190   }
 191   }
 192   }
 193   }
 194 */
 195
 196 void client_manage_all()
 197 {
 198     guint i, j, nchild;
 199     Window w, *children;
 200     XWMHints *wmhints;
 201     XWindowAttributes attrib;
 202
 203     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 204                &w, &w, &children, &nchild);
 205
 206     /* remove all icon windows from the list */
 207     for (i = 0; i < nchild; i++) {
 208         if (children[i] == None) continue;
 209         wmhints = XGetWMHints(ob_display, children[i]);
 210         if (wmhints) {
 211             if ((wmhints->flags & IconWindowHint) &&
 212                 (wmhints->icon_window != children[i]))
 213                 for (j = 0; j < nchild; j++)
 214                     if (children[j] == wmhints->icon_window) {
 215                         children[j] = None;
 216                         break;
 217                     }
 218             XFree(wmhints);
 219         }
 220     }
 221
 222     for (i = 0; i < nchild; ++i) {
 223         if (children[i] == None)
 224             continue;
 225         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 226             if (attrib.override_redirect) continue;
 227
 228             if (attrib.map_state != IsUnmapped)
 229                 client_manage(children[i]);
 230         }
 231     }
 232     XFree(children);
 233 }
 234
 235 void client_manage(Window window)
 236 {
 237     ObClient *self;
 238     XEvent e;
 239     XWindowAttributes attrib;
 240     XSetWindowAttributes attrib_set;
 241     XWMHints *wmhint;
 242     gboolean activate = FALSE;
 243     ObAppSettings *settings;
 244     gint placex, placey, placew, placeh;
 245     gboolean transient = FALSE;
 246
 247     grab_server(TRUE);
 248
 249     /* check if it has already been unmapped by the time we started
 250        mapping. the grab does a sync so we don't have to here */
 251     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 252         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 253     {
 254         XPutBackEvent(ob_display, &e);
 255
 256         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 257         grab_server(FALSE);
 258         return; /* don't manage it */
 259     }
 260
 261     /* make sure it isn't an override-redirect window */
 262     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 263         attrib.override_redirect)
 264     {
 265         grab_server(FALSE);
 266         return; /* don't manage it */
 267     }
 268
 269     /* is the window a docking app */
 270     if ((wmhint = XGetWMHints(ob_display, window))) {
 271         if ((wmhint->flags & StateHint) &&
 272             wmhint->initial_state == WithdrawnState)
 273         {
 274             dock_add(window, wmhint);
 275             grab_server(FALSE);
 276             XFree(wmhint);
 277             return;
 278         }
 279         XFree(wmhint);
 280     }
 281
 282     ob_debug("Managing window: 0x%lx\n", window);
 283
 284     /* choose the events we want to receive on the CLIENT window */
 285     attrib_set.event_mask = CLIENT_EVENTMASK;
 286     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 287     XChangeWindowAttributes(ob_display, window,
 288                             CWEventMask|CWDontPropagate, &attrib_set);
 289
 290     /* create the ObClient struct, and populate it from the hints on the
 291        window */
 292     self = g_new0(ObClient, 1);
 293     self->obwin.type = Window_Client;
 294     self->window = window;
 295
 296     /* non-zero defaults */
 297     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 298     self->gravity = NorthWestGravity;
 299     self->desktop = screen_num_desktops; /* always an invalid value */
 300     self->user_time = focus_client ? focus_client->user_time : CurrentTime;
 301
 302     /* get all the stuff off the window */
 303     client_get_all(self, TRUE);
 304
 305     /* specify that if we exit, the window should not be destroyed and
 306        should be reparented back to root automatically */
 307     XChangeSaveSet(ob_display, window, SetModeInsert);
 308
 309     /* create the decoration frame for the client window */
 310     self->frame = frame_new(self);
 311
 312     frame_grab_client(self->frame);
 313
 314     /* we've grabbed everything and set everything that we need to at mapping
 315        time now */
 316     grab_server(FALSE);
 317
 318     /* per-app settings override stuff from client_get_all, and return the
 319        settings for other uses too. the returned settings is a shallow copy,
 320        that needs to be freed with g_free(). */
 321     settings = client_get_settings_state(self);
 322     /* the session should get the last say though */
 323     client_restore_session_state(self);
 324
 325     /* now we have all of the window's information so we can set this up */
 326     client_setup_decor_and_functions(self, FALSE);
 327
 328     {
 329         Time t = sn_app_started(self->startup_id, self->class);
 330         if (t) self->user_time = t;
 331     }
 332
 333     /* do this after we have a frame.. it uses the frame to help determine the
 334        WM_STATE to apply. */
 335     client_change_state(self);
 336
 337     /* add ourselves to the focus order */
 338     focus_order_add_new(self);
 339
 340     /* do this to add ourselves to the stacking list in a non-intrusive way */
 341     client_calc_layer(self);
 342
 343     /* focus the new window? */
 344     if (ob_state() != OB_STATE_STARTING &&
 345         (!self->session || self->session->focused) &&
 346         !self->iconic &&
 347         /* this means focus=true for window is same as config_focus_new=true */
 348         ((config_focus_new || (settings && settings->focus == 1)) ||
 349          client_search_focus_tree_full(self)) &&
 350         /* this checks for focus=false for the window */
 351         (!settings || settings->focus != 0) &&
 352         /* note the check against type Normal/Dialog/Utility,
 353            not client_normal(self), which would also include other types.
 354            in this case we want more strict rules for focus */
 355         (self->type == OB_CLIENT_TYPE_NORMAL ||
 356          self->type == OB_CLIENT_TYPE_UTILITY ||
 357          self->type == OB_CLIENT_TYPE_DIALOG))
 358     {
 359         activate = TRUE;
 360     }
 361
 362     /* remove the client's border */
 363     XSetWindowBorderWidth(ob_display, self->window, 0);
 364
 365     /* adjust the frame to the client's size before showing or placing
 366        the window */
 367     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 368     frame_adjust_client_area(self->frame);
 369
 370     /* where the frame was placed is where the window was originally */
 371     placex = self->area.x;
 372     placey = self->area.y;
 373     placew = self->area.width;
 374     placeh = self->area.height;
 375
 376     /* figure out placement for the window if the window is new */
 377     if (ob_state() == OB_STATE_RUNNING) {
 378         ob_debug("Positioned: %s @ %d %d\n",
 379                  (!self->positioned ? "no" :
 380                   (self->positioned == PPosition ? "program specified" :
 381                    (self->positioned == USPosition ? "user specified" :
 382                     (self->positioned == (PPosition | USPosition) ?
 383                      "program + user specified" :
 384                      "BADNESS !?")))), placex, placey);
 385
 386         ob_debug("Sized: %s @ %d %d\n",
 387                  (!self->sized ? "no" :
 388                   (self->sized == PSize ? "program specified" :
 389                    (self->sized == USSize ? "user specified" :
 390                     (self->sized == (PSize | USSize) ?
 391                      "program + user specified" :
 392                      "BADNESS !?")))), placew, placeh);
 393
 394         /* splash screens are also returned as TRUE for transient,
 395            and so will be forced on screen below */
 396         transient = place_client(self, &placex, &placey, settings);
 397
 398         /* make sure the window is visible. */
 399         client_find_onscreen(self, &placex, &placey, placew, placeh,
 400                              /* non-normal clients has less rules, and
 401                                 windows that are being restored from a
 402                                 session do also. we can assume you want
 403                                 it back where you saved it. Clients saying
 404                                 they placed themselves are subjected to
 405                                 harder rules, ones that are placed by
 406                                 place.c or by the user are allowed partially
 407                                 off-screen and on xinerama divides (ie,
 408                                 it is up to the placement routines to avoid
 409                                 the xinerama divides)
 410
 411                                 splash screens get "transient" set to TRUE by
 412                                 the place_client call
 413                              */
 414                              transient ||
 415                              (!(self->positioned & USPosition) &&
 416                               client_normal(self) &&
 417                               !self->session));
 418     }
 419
 420     /* if the window isn't user-sized, then make it fit inside
 421        the visible screen area on its monitor. Use basically the same rules
 422        for forcing the window on screen in the client_find_onscreen call.
 423
 424        do this after place_client, it chooses the monitor!
 425
 426        splash screens get "transient" set to TRUE by
 427        the place_client call
 428     */
 429     if (transient ||
 430         (!(self->sized & USSize) &&
 431          client_normal(self) &&
 432          !self->session))
 433     {
 434         /* make a copy to modify */
 435         Rect a = *screen_area_monitor(self->desktop, client_monitor(self));
 436
 437         /* shrink by the frame's area */
 438         a.width -= self->frame->size.left + self->frame->size.right;
 439         a.height -= self->frame->size.top + self->frame->size.bottom;
 440
 441         /* fit the window inside the area */
 442         if (placew > a.width || self->area.height > a.height) {
 443             placew = MIN(self->area.width, a.width);
 444             placeh = MIN(self->area.height, a.height);
 445
 446             ob_debug("setting window size to %dx%d\n",
 447                      self->area.width, self->area.height);
 448         }
 449     }
 450
 451
 452     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 453              "some restrictions may apply\n",
 454              self->window, placex, placey, placew, placeh);
 455     if (self->session)
 456         ob_debug("  but session requested %d, %d  %d x %d instead, "
 457                  "overriding\n",
 458                  self->session->x, self->session->y,
 459                  self->session->w, self->session->h);
 460
 461     /* do this after the window is placed, so the premax/prefullscreen numbers
 462        won't be all wacko!!
 463
 464        this also places the window
 465     */
 466     client_apply_startup_state(self, placex, placey, placew, placeh);
 467
 468     if (activate) {
 469         guint32 last_time = focus_client ?
 470             focus_client->user_time : CurrentTime;
 471
 472         /* This is focus stealing prevention */
 473         ob_debug_type(OB_DEBUG_FOCUS,
 474                       "Want to focus new window 0x%x with time %u "
 475                       "(last time %u)\n",
 476                       self->window, self->user_time, last_time);
 477
 478         /* if it's on another desktop */
 479         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 480             && /* the timestamp is from before you changed desktops */
 481             self->user_time && screen_desktop_user_time &&
 482             !event_time_after(self->user_time, screen_desktop_user_time))
 483         {
 484             activate = FALSE;
 485             ob_debug_type(OB_DEBUG_FOCUS,
 486                           "Not focusing the window because its on another "
 487                           "desktop\n");
 488         }
 489         /* If something is focused, and it's not our relative... */
 490         else if (focus_client && client_search_focus_tree_full(self) == NULL)
 491         {
 492             /* If time stamp is old, don't steal focus */
 493             if (self->user_time && last_time &&
 494                 !event_time_after(self->user_time, last_time))
 495             {
 496                 activate = FALSE;
 497                 ob_debug_type(OB_DEBUG_FOCUS,
 498                               "Not focusing the window because the time is "
 499                               "too old\n");
 500             }
 501             /* If its a transient (and parents aren't focused) and the time
 502                is ambiguous (either the current focus target doesn't have
 503                a timestamp, or they are the same (we probably inherited it
 504                from them) */
 505             else if (client_has_parent(self) &&
 506                      (!last_time || self->user_time == last_time))
 507             {
 508                 activate = FALSE;
 509                 ob_debug_type(OB_DEBUG_FOCUS,
 510                               "Not focusing the window because it is a "
 511                               "transient, and the time is very ambiguous\n");
 512             }
 513             /* Don't steal focus from globally active clients.
 514                I stole this idea from KWin. It seems nice.
 515              */
 516             else if (!(focus_client->can_focus ||
 517                        focus_client->focus_notify))
 518             {
 519                 activate = FALSE;
 520                 ob_debug_type(OB_DEBUG_FOCUS,
 521                               "Not focusing the window because a globally "
 522                               "active client has focus\n");
 523             }
 524             /* Don't move focus if it's not going to go to this window
 525                anyway */
 526             else if (client_focus_target(self) != self) {
 527                 activate = FALSE;
 528                 ob_debug_type(OB_DEBUG_FOCUS,
 529                               "Not focusing the window because another window "
 530                               "would get the focus anyway\n");
 531             }
 532         }
 533
 534         if (!activate) {
 535             ob_debug_type(OB_DEBUG_FOCUS,
 536                           "Focus stealing prevention activated for %s with "
 537                           "time %u (last time %u)\n",
 538                           self->title, self->user_time, last_time);
 539             /* if the client isn't focused, then hilite it so the user
 540                knows it is there */
 541             client_hilite(self, TRUE);
 542         }
 543     }
 544     else {
 545         /* This may look rather odd. Well it's because new windows are added
 546            to the stacking order non-intrusively. If we're not going to focus
 547            the new window or hilite it, then we raise it to the top. This will
 548            take affect for things that don't get focused like splash screens.
 549            Also if you don't have focus_new enabled, then it's going to get
 550            raised to the top. Legacy begets legacy I guess?
 551         */
 552         if (!client_restore_session_stacking(self))
 553             stacking_raise(CLIENT_AS_WINDOW(self));
 554     }
 555
 556     mouse_grab_for_client(self, TRUE);
 557
 558     /* this has to happen before we try focus the window, but we want it to
 559        happen after the client's stacking has been determined or it looks bad
 560     */
 561     client_show(self);
 562
 563     if (activate) {
 564         gboolean stacked = client_restore_session_stacking(self);
 565         client_present(self, FALSE, !stacked);
 566     }
 567
 568     /* add to client list/map */
 569     client_list = g_list_append(client_list, self);
 570     g_hash_table_insert(window_map, &self->window, self);
 571
 572     /* this has to happen after we're in the client_list */
 573     if (STRUT_EXISTS(self->strut))
 574         screen_update_areas();
 575
 576     /* update the list hints */
 577     client_set_list();
 578
 579     /* free the ObAppSettings shallow copy */
 580     g_free(settings);
 581
 582     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 583              window, self->frame->window, self->class);
 584
 585     return;
 586 }
 587
 588
 589 ObClient *client_fake_manage(Window window)
 590 {
 591     ObClient *self;
 592     ObAppSettings *settings;
 593
 594     ob_debug("Pretend-managing window: %lx\n", window);
 595
 596     /* do this minimal stuff to figure out the client's decorations */
 597
 598     self = g_new0(ObClient, 1);
 599     self->window = window;
 600
 601     client_get_all(self, FALSE);
 602     /* per-app settings override stuff, and return the settings for other
 603        uses too. this returns a shallow copy that needs to be freed */
 604     settings = client_get_settings_state(self);
 605
 606     client_setup_decor_and_functions(self, FALSE);
 607
 608     /* create the decoration frame for the client window and adjust its size */
 609     self->frame = frame_new(self);
 610     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 611
 612     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 613              self->frame->size.left, self->frame->size.right,
 614              self->frame->size.top, self->frame->size.bottom);
 615
 616     /* free the ObAppSettings shallow copy */
 617     g_free(settings);
 618
 619     return self;
 620 }
 621
 622 void client_unmanage_all()
 623 {
 624     while (client_list != NULL)
 625         client_unmanage(client_list->data);
 626 }
 627
 628 void client_unmanage(ObClient *self)
 629 {
 630     guint j;
 631     GSList *it;
 632
 633     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 634              self->window, self->frame->window,
 635              self->class, self->title ? self->title : "");
 636
 637     g_assert(self != NULL);
 638
 639     /* we dont want events no more. do this before hiding the frame so we
 640        don't generate more events */
 641     XSelectInput(ob_display, self->window, NoEventMask);
 642
 643     frame_hide(self->frame);
 644     /* flush to send the hide to the server quickly */
 645     XFlush(ob_display);
 646
 647     /* ignore enter events from the unmap so it doesnt mess with the
 648        focus */
 649     event_ignore_all_queued_enters();
 650
 651     mouse_grab_for_client(self, FALSE);
 652
 653     /* remove the window from our save set */
 654     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 655
 656     /* kill the property windows */
 657     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 658
 659     /* update the focus lists */
 660     focus_order_remove(self);
 661     if (client_focused(self)) {
 662         /* don't leave an invalid focus_client */
 663         focus_client = NULL;
 664     }
 665
 666     client_list = g_list_remove(client_list, self);
 667     stacking_remove(self);
 668     g_hash_table_remove(window_map, &self->window);
 669
 670     /* once the client is out of the list, update the struts to remove its
 671        influence */
 672     if (STRUT_EXISTS(self->strut))
 673         screen_update_areas();
 674
 675     client_call_notifies(self, client_destroy_notifies);
 676
 677     /* tell our parent(s) that we're gone */
 678     if (self->transient_for == OB_TRAN_GROUP) { /* transient of group */
 679         for (it = self->group->members; it; it = g_slist_next(it))
 680             if (it->data != self)
 681                 ((ObClient*)it->data)->transients =
 682                     g_slist_remove(((ObClient*)it->data)->transients,self);
 683     } else if (self->transient_for) {        /* transient of window */
 684         self->transient_for->transients =
 685             g_slist_remove(self->transient_for->transients, self);
 686     }
 687
 688     /* tell our transients that we're gone */
 689     for (it = self->transients; it; it = g_slist_next(it)) {
 690         if (((ObClient*)it->data)->transient_for != OB_TRAN_GROUP) {
 691             ((ObClient*)it->data)->transient_for = NULL;
 692             client_calc_layer(it->data);
 693         }
 694     }
 695
 696     /* remove from its group */
 697     if (self->group) {
 698         group_remove(self->group, self);
 699         self->group = NULL;
 700     }
 701
 702     /* restore the window's original geometry so it is not lost */
 703     {
 704         Rect a;
 705
 706         a = self->area;
 707
 708         if (self->fullscreen)
 709             a = self->pre_fullscreen_area;
 710         else if (self->max_horz || self->max_vert) {
 711             if (self->max_horz) {
 712                 a.x = self->pre_max_area.x;
 713                 a.width = self->pre_max_area.width;
 714             }
 715             if (self->max_vert) {
 716                 a.y = self->pre_max_area.y;
 717                 a.height = self->pre_max_area.height;
 718             }
 719         }
 720
 721         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 722         /* let it be moved and resized no matter what */
 723         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 724         self->decorations = 0; /* unmanaged windows have no decor */
 725
 726         /* give the client its border back */
 727         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 728
 729         client_move_resize(self, a.x, a.y, a.width, a.height);
 730     }
 731
 732     /* reparent the window out of the frame, and free the frame */
 733     frame_release_client(self->frame);
 734     frame_free(self->frame);
 735     self->frame = NULL;
 736
 737     if (ob_state() != OB_STATE_EXITING) {
 738         /* these values should not be persisted across a window
 739            unmapping/mapping */
 740         PROP_ERASE(self->window, net_wm_desktop);
 741         PROP_ERASE(self->window, net_wm_state);
 742         PROP_ERASE(self->window, wm_state);
 743     } else {
 744         /* if we're left in an unmapped state, the client wont be mapped.
 745            this is bad, since we will no longer be managing the window on
 746            restart */
 747         XMapWindow(ob_display, self->window);
 748     }
 749
 750     /* update the list hints */
 751     client_set_list();
 752
 753     ob_debug("Unmanaged window 0x%lx\n", self->window);
 754
 755     /* free all data allocated in the client struct */
 756     g_slist_free(self->transients);
 757     for (j = 0; j < self->nicons; ++j)
 758         g_free(self->icons[j].data);
 759     if (self->nicons > 0)
 760         g_free(self->icons);
 761     g_free(self->wm_command);
 762     g_free(self->title);
 763     g_free(self->icon_title);
 764     g_free(self->name);
 765     g_free(self->class);
 766     g_free(self->role);
 767     g_free(self->client_machine);
 768     g_free(self->sm_client_id);
 769     g_free(self);
 770 }
 771
 772 void client_fake_unmanage(ObClient *self)
 773 {
 774     /* this is all that got allocated to get the decorations */
 775
 776     frame_free(self->frame);
 777     g_free(self);
 778 }
 779
 780 /*! Returns a new structure containing the per-app settings for this client.
 781   The returned structure needs to be freed with g_free. */
 782 static ObAppSettings *client_get_settings_state(ObClient *self)
 783 {
 784     ObAppSettings *settings;
 785     GSList *it;
 786
 787     settings = config_create_app_settings();
 788
 789     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 790         ObAppSettings *app = it->data;
 791         gboolean match = TRUE;
 792
 793         g_assert(app->name != NULL || app->class != NULL);
 794
 795         /* we know that either name or class is not NULL so it will have to
 796            match to use the rule */
 797         if (app->name &&
 798             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 799             match = FALSE;
 800         else if (app->class &&
 801                 !g_pattern_match(app->class,
 802                                  strlen(self->class), self->class, NULL))
 803             match = FALSE;
 804         else if (app->role &&
 805                  !g_pattern_match(app->role,
 806                                   strlen(self->role), self->role, NULL))
 807             match = FALSE;
 808
 809         if (match) {
 810             ob_debug("Window matching: %s\n", app->name);
 811
 812             /* copy the settings to our struct, overriding the existing
 813                settings if they are not defaults */
 814             config_app_settings_copy_non_defaults(app, settings);
 815         }
 816     }
 817
 818     if (settings->shade != -1)
 819         self->shaded = !!settings->shade;
 820     if (settings->decor != -1)
 821         self->undecorated = !settings->decor;
 822     if (settings->iconic != -1)
 823         self->iconic = !!settings->iconic;
 824     if (settings->skip_pager != -1)
 825         self->skip_pager = !!settings->skip_pager;
 826     if (settings->skip_taskbar != -1)
 827         self->skip_taskbar = !!settings->skip_taskbar;
 828
 829     if (settings->max_vert != -1)
 830         self->max_vert = !!settings->max_vert;
 831     if (settings->max_horz != -1)
 832         self->max_horz = !!settings->max_horz;
 833
 834     if (settings->fullscreen != -1)
 835         self->fullscreen = !!settings->fullscreen;
 836
 837     if (settings->desktop) {
 838         if (settings->desktop == DESKTOP_ALL)
 839             self->desktop = settings->desktop;
 840         else if (settings->desktop > 0 &&
 841                  settings->desktop <= screen_num_desktops)
 842             self->desktop = settings->desktop - 1;
 843     }
 844
 845     if (settings->layer == -1) {
 846         self->below = TRUE;
 847         self->above = FALSE;
 848     }
 849     else if (settings->layer == 0) {
 850         self->below = FALSE;
 851         self->above = FALSE;
 852     }
 853     else if (settings->layer == 1) {
 854         self->below = FALSE;
 855         self->above = TRUE;
 856     }
 857     return settings;
 858 }
 859
 860 static void client_restore_session_state(ObClient *self)
 861 {
 862     GList *it;
 863
 864     ob_debug_type(OB_DEBUG_SM,
 865                   "Restore session for client %s\n", self->title);
 866
 867     if (!(it = session_state_find(self))) {
 868         ob_debug_type(OB_DEBUG_SM,
 869                       "Session data not found for client %s\n", self->title);
 870         return;
 871     }
 872
 873     self->session = it->data;
 874
 875     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 876                   self->title);
 877
 878     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 879     self->positioned = USPosition;
 880     self->sized = USSize;
 881     if (self->session->w > 0)
 882         self->area.width = self->session->w;
 883     if (self->session->h > 0)
 884         self->area.height = self->session->h;
 885     XResizeWindow(ob_display, self->window,
 886                   self->area.width, self->area.height);
 887
 888     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 889                      self->session->desktop :
 890                      MIN(screen_num_desktops - 1, self->session->desktop));
 891     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 892
 893     self->shaded = self->session->shaded;
 894     self->iconic = self->session->iconic;
 895     self->skip_pager = self->session->skip_pager;
 896     self->skip_taskbar = self->session->skip_taskbar;
 897     self->fullscreen = self->session->fullscreen;
 898     self->above = self->session->above;
 899     self->below = self->session->below;
 900     self->max_horz = self->session->max_horz;
 901     self->max_vert = self->session->max_vert;
 902     self->undecorated = self->session->undecorated;
 903 }
 904
 905 static gboolean client_restore_session_stacking(ObClient *self)
 906 {
 907     GList *it, *mypos;
 908
 909     if (!self->session) return FALSE;
 910
 911     mypos = g_list_find(session_saved_state, self->session);
 912     if (!mypos) return FALSE;
 913
 914     /* start above me and look for the first client */
 915     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 916         GList *cit;
 917
 918         for (cit = client_list; cit; cit = g_list_next(cit)) {
 919             ObClient *c = cit->data;
 920             /* found a client that was in the session, so go below it */
 921             if (c->session == it->data) {
 922                 stacking_below(CLIENT_AS_WINDOW(self),
 923                                CLIENT_AS_WINDOW(cit->data));
 924                 return TRUE;
 925             }
 926         }
 927     }
 928     return FALSE;
 929 }
 930
 931 void client_move_onscreen(ObClient *self, gboolean rude)
 932 {
 933     gint x = self->area.x;
 934     gint y = self->area.y;
 935     if (client_find_onscreen(self, &x, &y,
 936                              self->area.width,
 937                              self->area.height, rude)) {
 938         client_move(self, x, y);
 939     }
 940 }
 941
 942 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 943                               gboolean rude)
 944 {
 945     Rect *mon_a, *all_a;
 946     gint ox = *x, oy = *y;
 947     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 948     gint fw, fh;
 949     Rect desired;
 950
 951     RECT_SET(desired, *x, *y, w, h);
 952     all_a = screen_area(self->desktop);
 953     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired));
 954
 955     /* get where the frame would be */
 956     frame_client_gravity(self->frame, x, y, w, h);
 957
 958     /* get the requested size of the window with decorations */
 959     fw = self->frame->size.left + w + self->frame->size.right;
 960     fh = self->frame->size.top + h + self->frame->size.bottom;
 961
 962     /* This makes sure windows aren't entirely outside of the screen so you
 963        can't see them at all.
 964        It makes sure 10% of the window is on the screen at least. At don't let
 965        it move itself off the top of the screen, which would hide the titlebar
 966        on you. (The user can still do this if they want too, it's only limiting
 967        the application.
 968
 969        XXX watch for xinerama dead areas...
 970     */
 971     if (client_normal(self)) {
 972         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 973             *x = all_a->x + all_a->width - fw/10;
 974         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 975             *y = all_a->y + all_a->height - fh/10;
 976         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 977             *x = all_a->x - fw*9/10;
 978         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 979             *y = all_a->y - fw*9/10;
 980     }
 981
 982     /* If rudeness wasn't requested, then figure out of the client is currently
 983        entirely on the screen. If it is, and the position isn't changing by
 984        request, and it is enlarging, then be rude even though it wasn't
 985        requested */
 986     if (!rude) {
 987         Point oldtl, oldtr, oldbl, oldbr;
 988         Point newtl, newtr, newbl, newbr;
 989         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 990
 991         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 992         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 993                   self->frame->area.y + self->frame->area.height - 1);
 994         POINT_SET(oldtr, oldbr.x, oldtl.y);
 995         POINT_SET(oldbl, oldtl.x, oldbr.y);
 996
 997         POINT_SET(newtl, *x, *y);
 998         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 999         POINT_SET(newtr, newbr.x, newtl.y);
1000         POINT_SET(newbl, newtl.x, newbr.y);
1001
1002         /* is it moving or just resizing from some corner? */
1003         stationary_l = oldtl.x == newtl.x;
1004         stationary_r = oldtr.x == newtr.x;
1005         stationary_t = oldtl.y == newtl.y;
1006         stationary_b = oldbl.y == newbl.y;
1007
1008         /* if left edge is growing and didnt move right edge */
1009         if (stationary_r && newtl.x < oldtl.x)
1010             rudel = TRUE;
1011         /* if right edge is growing and didnt move left edge */
1012         if (stationary_l && newtr.x > oldtr.x)
1013             ruder = TRUE;
1014         /* if top edge is growing and didnt move bottom edge */
1015         if (stationary_b && newtl.y < oldtl.y)
1016             rudet = TRUE;
1017         /* if bottom edge is growing and didnt move top edge */
1018         if (stationary_t && newbl.y > oldbl.y)
1019             rudeb = TRUE;
1020     }
1021
1022     /* This here doesn't let windows even a pixel outside the struts/screen.
1023      * When called from client_manage, programs placing themselves are
1024      * forced completely onscreen, while things like
1025      * xterm -geometry resolution-width/2 will work fine. Trying to
1026      * place it completely offscreen will be handled in the above code.
1027      * Sorry for this confused comment, i am tired. */
1028     if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
1029     if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
1030         *x = mon_a->x + MAX(0, mon_a->width - fw);
1031
1032     if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
1033     if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
1034         *y = mon_a->y + MAX(0, mon_a->height - fh);
1035
1036     /* get where the client should be */
1037     frame_frame_gravity(self->frame, x, y, w, h);
1038
1039     return ox != *x || oy != *y;
1040 }
1041
1042 static void client_get_all(ObClient *self, gboolean real)
1043 {
1044     /* this is needed for the frame to set itself up */
1045     client_get_area(self);
1046
1047     /* these things can change the decor and functions of the window */
1048
1049     client_get_mwm_hints(self);
1050     /* this can change the mwmhints for special cases */
1051     client_get_type_and_transientness(self);
1052     client_get_state(self);
1053     client_update_normal_hints(self);
1054
1055     /* get the session related properties, these can change decorations
1056        from per-app settings */
1057     client_get_session_ids(self);
1058
1059     /* now we got everything that can affect the decorations */
1060     if (!real)
1061         return;
1062
1063     /* get this early so we have it for debugging */
1064     client_update_title(self);
1065
1066     client_update_protocols(self);
1067
1068     client_update_wmhints(self);
1069     /* this may have already been called from client_update_wmhints */
1070     if (self->transient_for == NULL)
1071         client_update_transient_for(self);
1072
1073     client_get_startup_id(self);
1074     client_get_desktop(self);/* uses transient data/group/startup id if a
1075                                 desktop is not specified */
1076     client_get_shaped(self);
1077
1078     {
1079         /* a couple type-based defaults for new windows */
1080
1081         /* this makes sure that these windows appear on all desktops */
1082         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1083             self->desktop = DESKTOP_ALL;
1084     }
1085
1086 #ifdef SYNC
1087     client_update_sync_request_counter(self);
1088 #endif
1089
1090     client_get_colormap(self);
1091     client_update_strut(self);
1092     client_update_icons(self);
1093     client_update_user_time_window(self);
1094     if (!self->user_time_window) /* check if this would have been called */
1095         client_update_user_time(self);
1096     client_update_icon_geometry(self);
1097 }
1098
1099 static void client_get_startup_id(ObClient *self)
1100 {
1101     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1102         if (self->group)
1103             PROP_GETS(self->group->leader,
1104                       net_startup_id, utf8, &self->startup_id);
1105 }
1106
1107 static void client_get_area(ObClient *self)
1108 {
1109     XWindowAttributes wattrib;
1110     Status ret;
1111
1112     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1113     g_assert(ret != BadWindow);
1114
1115     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1116     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1117     self->border_width = wattrib.border_width;
1118
1119     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1120              wattrib.width, wattrib.height, wattrib.border_width);
1121 }
1122
1123 static void client_get_desktop(ObClient *self)
1124 {
1125     guint32 d = screen_num_desktops; /* an always-invalid value */
1126
1127     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1128         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1129             self->desktop = screen_num_desktops - 1;
1130         else
1131             self->desktop = d;
1132         ob_debug("client requested desktop 0x%x\n", self->desktop);
1133     } else {
1134         gboolean trdesk = FALSE;
1135
1136         if (self->transient_for) {
1137             if (self->transient_for != OB_TRAN_GROUP) {
1138                 if (self->transient_for->desktop != DESKTOP_ALL) {
1139                     self->desktop = self->transient_for->desktop;
1140                     trdesk = TRUE;
1141                 }
1142             } else {
1143                 /* if all the group is on one desktop, then open it on the
1144                    same desktop */
1145                 GSList *it;
1146                 gboolean first = TRUE;
1147                 guint all = screen_num_desktops; /* not a valid value */
1148
1149                 for (it = self->group->members; it; it = g_slist_next(it)) {
1150                     ObClient *c = it->data;
1151                     if (c != self) {
1152                         if (first) {
1153                             all = c->desktop;
1154                             first = FALSE;
1155                         }
1156                         else if (all != c->desktop)
1157                             all = screen_num_desktops; /* make it invalid */
1158                     }
1159                 }
1160                 if (all != screen_num_desktops) {
1161                     self->desktop = all;
1162                     trdesk = TRUE;
1163                 }
1164             }
1165         }
1166         if (!trdesk) {
1167             /* try get from the startup-notification protocol */
1168             if (sn_get_desktop(self->startup_id, &self->desktop)) {
1169                 if (self->desktop >= screen_num_desktops &&
1170                     self->desktop != DESKTOP_ALL)
1171                     self->desktop = screen_num_desktops - 1;
1172             } else
1173                 /* defaults to the current desktop */
1174                 self->desktop = screen_desktop;
1175         }
1176     }
1177 }
1178
1179 static void client_get_state(ObClient *self)
1180 {
1181     guint32 *state;
1182     guint num;
1183
1184     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1185         gulong i;
1186         for (i = 0; i < num; ++i) {
1187             if (state[i] == prop_atoms.net_wm_state_modal)
1188                 self->modal = TRUE;
1189             else if (state[i] == prop_atoms.net_wm_state_shaded)
1190                 self->shaded = TRUE;
1191             else if (state[i] == prop_atoms.net_wm_state_hidden)
1192                 self->iconic = TRUE;
1193             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1194                 self->skip_taskbar = TRUE;
1195             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1196                 self->skip_pager = TRUE;
1197             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1198                 self->fullscreen = TRUE;
1199             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1200                 self->max_vert = TRUE;
1201             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1202                 self->max_horz = TRUE;
1203             else if (state[i] == prop_atoms.net_wm_state_above)
1204                 self->above = TRUE;
1205             else if (state[i] == prop_atoms.net_wm_state_below)
1206                 self->below = TRUE;
1207             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1208                 self->demands_attention = TRUE;
1209             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1210                 self->undecorated = TRUE;
1211         }
1212
1213         g_free(state);
1214     }
1215 }
1216
1217 static void client_get_shaped(ObClient *self)
1218 {
1219     self->shaped = FALSE;
1220 #ifdef   SHAPE
1221     if (extensions_shape) {
1222         gint foo;
1223         guint ufoo;
1224         gint s;
1225
1226         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1227
1228         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1229                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1230                            &ufoo);
1231         self->shaped = (s != 0);
1232     }
1233 #endif
1234 }
1235
1236 void client_update_transient_for(ObClient *self)
1237 {
1238     Window t = None;
1239     ObClient *target = NULL;
1240
1241     if (XGetTransientForHint(ob_display, self->window, &t)) {
1242         if (t != self->window) { /* cant be transient to itself! */
1243             target = g_hash_table_lookup(window_map, &t);
1244             /* if this happens then we need to check for it*/
1245             g_assert(target != self);
1246             if (target && !WINDOW_IS_CLIENT(target)) {
1247                 /* this can happen when a dialog is a child of
1248                    a dockapp, for example */
1249                 target = NULL;
1250             }
1251
1252             /* THIS IS SO ANNOYING ! ! ! ! Let me explain.... have a seat..
1253
1254                Setting the transient_for to Root is actually illegal, however
1255                applications from time have done this to specify transient for
1256                their group.
1257
1258                Now you can do that by being a TYPE_DIALOG and not setting
1259                the transient_for hint at all on your window. But people still
1260                use Root, and Kwin is very strange in this regard.
1261
1262                KWin 3.0 will not consider windows with transient_for set to
1263                Root as transient for their group *UNLESS* they are also modal.
1264                In that case, it will make them transient for the group. This
1265                leads to all sorts of weird behavior from KDE apps which are
1266                only tested in KWin. I'd like to follow their behavior just to
1267                make this work right with KDE stuff, but that seems wrong.
1268             */
1269             if (!target && self->group) {
1270                 /* not transient to a client, see if it is transient for a
1271                    group */
1272                 if (t == RootWindow(ob_display, ob_screen)) {
1273                     /* window is a transient for its group! */
1274                     target = OB_TRAN_GROUP;
1275                 }
1276             }
1277         }
1278     } else if (self->transient && self->group)
1279         target = OB_TRAN_GROUP;
1280
1281     client_update_transient_tree(self, self->group, self->group,
1282                                  self->transient_for, target);
1283     self->transient_for = target;
1284
1285 }
1286
1287 static void client_update_transient_tree(ObClient *self,
1288                                          ObGroup *oldgroup, ObGroup *newgroup,
1289                                          ObClient* oldparent,
1290                                          ObClient *newparent)
1291 {
1292     GSList *it, *next;
1293     ObClient *c;
1294
1295     /* * *
1296       Group transient windows are not allowed to have other group
1297       transient windows as their children.
1298       * * */
1299
1300
1301     /* No change has occured */
1302     if (oldgroup == newgroup && oldparent == newparent) return;
1303
1304     /** Remove the client from the transient tree wherever it has changed **/
1305
1306     /* If the window is becoming a direct transient for a window in its group
1307        then any group transients which were our children and are now becoming
1308        our parents need to stop being our children.
1309
1310        Group transients can't be children of group transients already, but
1311        we could have any number of direct parents above up, any of which could
1312        be transient for the group, and we need to remove it from our children.
1313     */
1314     if (oldparent != newparent &&
1315         newparent != NULL && newparent != OB_TRAN_GROUP &&
1316         newgroup != NULL && newgroup == oldgroup)
1317     {
1318         ObClient *look = newparent;
1319         do {
1320             self->transients = g_slist_remove(self->transients, look);
1321             look = look->transient_for;
1322         } while (look != NULL && look != OB_TRAN_GROUP);
1323     }
1324
1325
1326     /* If the group changed, or if we are just becoming transient for the
1327        group, then we need to remove any old group transient windows
1328        from our children. But if we were already transient for the group, then
1329        other group transients are not our children. */
1330     if ((oldgroup != newgroup ||
1331          (newparent == OB_TRAN_GROUP && oldparent != newparent)) &&
1332         oldgroup != NULL && oldparent != OB_TRAN_GROUP)
1333     {
1334         for (it = self->transients; it; it = next) {
1335             next = g_slist_next(it);
1336             c = it->data;
1337             if (c->group == oldgroup)
1338                 self->transients = g_slist_delete_link(self->transients, it);
1339         }
1340     }
1341
1342     /* If we used to be transient for a group and now we are not, or we're
1343        transient for a new group, then we need to remove ourselves from all
1344        our ex-parents */
1345     if (oldparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1346                                        oldparent != newparent))
1347     {
1348         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1349             c = it->data;
1350             if (c != self && (!c->transient_for ||
1351                               c->transient_for != OB_TRAN_GROUP))
1352                 c->transients = g_slist_remove(c->transients, self);
1353         }
1354     }
1355     /* If we used to be transient for a single window and we are no longer
1356        transient for it, then we need to remove ourself from its children */
1357     else if (oldparent != NULL && oldparent != OB_TRAN_GROUP &&
1358              oldparent != newparent)
1359         oldparent->transients = g_slist_remove(oldparent->transients, self);
1360
1361
1362     /** Re-add the client to the transient tree wherever it has changed **/
1363
1364     /* If we're now transient for a group and we weren't transient for it
1365        before then we need to add ourselves to all our new parents */
1366     if (newparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1367                                        oldparent != newparent))
1368     {
1369         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1370             c = it->data;
1371             if (c != self && (!c->transient_for ||
1372                               c->transient_for != OB_TRAN_GROUP))
1373                 c->transients = g_slist_prepend(c->transients, self);
1374         }
1375     }
1376     /* If we are now transient for a single window which we weren't before,
1377        we need to add ourselves to its children
1378
1379        WARNING: Cyclical transient ness is possible if two windows are
1380        transient for eachother.
1381     */
1382     else if (newparent != NULL && newparent != OB_TRAN_GROUP &&
1383              newparent != oldparent &&
1384              /* don't make ourself its child if it is already our child */
1385              !client_is_direct_child(self, newparent))
1386         newparent->transients = g_slist_prepend(newparent->transients, self);
1387
1388     /* If the group changed then we need to add any new group transient
1389        windows to our children. But if we're transient for the group, then
1390        other group transients are not our children.
1391
1392        WARNING: Cyclical transient-ness is possible. For e.g. if:
1393        A is transient for the group
1394        B is transient for A
1395        C is transient for B
1396        A can't be transient for C or we have a cycle
1397     */
1398     if (oldgroup != newgroup && newgroup != NULL &&
1399         newparent != OB_TRAN_GROUP)
1400     {
1401         for (it = newgroup->members; it; it = g_slist_next(it)) {
1402             c = it->data;
1403             if (c != self && c->transient_for == OB_TRAN_GROUP &&
1404                 /* Don't make it our child if it is already our parent */
1405                 !client_is_direct_child(c, self))
1406             {
1407                 self->transients = g_slist_prepend(self->transients, c);
1408             }
1409         }
1410     }
1411 }
1412
1413 static void client_get_mwm_hints(ObClient *self)
1414 {
1415     guint num;
1416     guint32 *hints;
1417
1418     self->mwmhints.flags = 0; /* default to none */
1419
1420     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1421                     &hints, &num)) {
1422         if (num >= OB_MWM_ELEMENTS) {
1423             self->mwmhints.flags = hints[0];
1424             self->mwmhints.functions = hints[1];
1425             self->mwmhints.decorations = hints[2];
1426         }
1427         g_free(hints);
1428     }
1429 }
1430
1431 void client_get_type_and_transientness(ObClient *self)
1432 {
1433     guint num, i;
1434     guint32 *val;
1435     Window t;
1436
1437     self->type = -1;
1438     self->transient = FALSE;
1439
1440     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1441         /* use the first value that we know about in the array */
1442         for (i = 0; i < num; ++i) {
1443             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1444                 self->type = OB_CLIENT_TYPE_DESKTOP;
1445             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1446                 self->type = OB_CLIENT_TYPE_DOCK;
1447             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1448                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1449             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1450                 self->type = OB_CLIENT_TYPE_MENU;
1451             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1452                 self->type = OB_CLIENT_TYPE_UTILITY;
1453             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1454                 self->type = OB_CLIENT_TYPE_SPLASH;
1455             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1456                 self->type = OB_CLIENT_TYPE_DIALOG;
1457             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1458                 self->type = OB_CLIENT_TYPE_NORMAL;
1459             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1460                 /* prevent this window from getting any decor or
1461                    functionality */
1462                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1463                                          OB_MWM_FLAG_DECORATIONS);
1464                 self->mwmhints.decorations = 0;
1465                 self->mwmhints.functions = 0;
1466             }
1467             if (self->type != (ObClientType) -1)
1468                 break; /* grab the first legit type */
1469         }
1470         g_free(val);
1471     }
1472
1473     if (XGetTransientForHint(ob_display, self->window, &t))
1474         self->transient = TRUE;
1475
1476     if (self->type == (ObClientType) -1) {
1477         /*the window type hint was not set, which means we either classify
1478           ourself as a normal window or a dialog, depending on if we are a
1479           transient. */
1480         if (self->transient)
1481             self->type = OB_CLIENT_TYPE_DIALOG;
1482         else
1483             self->type = OB_CLIENT_TYPE_NORMAL;
1484     }
1485
1486     /* then, based on our type, we can update our transientness.. */
1487     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1488         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1489         self->type == OB_CLIENT_TYPE_MENU ||
1490         self->type == OB_CLIENT_TYPE_UTILITY)
1491     {
1492         self->transient = TRUE;
1493     }
1494 }
1495
1496 void client_update_protocols(ObClient *self)
1497 {
1498     guint32 *proto;
1499     guint num_return, i;
1500
1501     self->focus_notify = FALSE;
1502     self->delete_window = FALSE;
1503
1504     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1505         for (i = 0; i < num_return; ++i) {
1506             if (proto[i] == prop_atoms.wm_delete_window)
1507                 /* this means we can request the window to close */
1508                 self->delete_window = TRUE;
1509             else if (proto[i] == prop_atoms.wm_take_focus)
1510                 /* if this protocol is requested, then the window will be
1511                    notified whenever we want it to receive focus */
1512                 self->focus_notify = TRUE;
1513 #ifdef SYNC
1514             else if (proto[i] == prop_atoms.net_wm_sync_request)
1515                 /* if this protocol is requested, then resizing the
1516                    window will be synchronized between the frame and the
1517                    client */
1518                 self->sync_request = TRUE;
1519 #endif
1520         }
1521         g_free(proto);
1522     }
1523 }
1524
1525 #ifdef SYNC
1526 void client_update_sync_request_counter(ObClient *self)
1527 {
1528     guint32 i;
1529
1530     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1531         self->sync_counter = i;
1532     } else
1533         self->sync_counter = None;
1534 }
1535 #endif
1536
1537 void client_get_colormap(ObClient *self)
1538 {
1539     XWindowAttributes wa;
1540
1541     if (XGetWindowAttributes(ob_display, self->window, &wa))
1542         client_update_colormap(self, wa.colormap);
1543 }
1544
1545 void client_update_colormap(ObClient *self, Colormap colormap)
1546 {
1547     if (colormap == self->colormap) return;
1548
1549     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1550
1551     if (client_focused(self)) {
1552         screen_install_colormap(self, FALSE); /* uninstall old one */
1553         self->colormap = colormap;
1554         screen_install_colormap(self, FALSE); /* install new one */
1555     } else
1556         self->colormap = colormap;
1557 }
1558
1559 void client_update_normal_hints(ObClient *self)
1560 {
1561     XSizeHints size;
1562     glong ret;
1563
1564     /* defaults */
1565     self->min_ratio = 0.0f;
1566     self->max_ratio = 0.0f;
1567     SIZE_SET(self->size_inc, 1, 1);
1568     SIZE_SET(self->base_size, 0, 0);
1569     SIZE_SET(self->min_size, 0, 0);
1570     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1571
1572     /* get the hints from the window */
1573     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1574         /* normal windows can't request placement! har har
1575         if (!client_normal(self))
1576         */
1577         self->positioned = (size.flags & (PPosition|USPosition));
1578         self->sized = (size.flags & (PSize|USSize));
1579
1580         if (size.flags & PWinGravity)
1581             self->gravity = size.win_gravity;
1582
1583         if (size.flags & PAspect) {
1584             if (size.min_aspect.y)
1585                 self->min_ratio =
1586                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1587             if (size.max_aspect.y)
1588                 self->max_ratio =
1589                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1590         }
1591
1592         if (size.flags & PMinSize)
1593             SIZE_SET(self->min_size, size.min_width, size.min_height);
1594
1595         if (size.flags & PMaxSize)
1596             SIZE_SET(self->max_size, size.max_width, size.max_height);
1597
1598         if (size.flags & PBaseSize)
1599             SIZE_SET(self->base_size, size.base_width, size.base_height);
1600
1601         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1602             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1603     }
1604 }
1605
1606 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1607 {
1608     /* start with everything (cept fullscreen) */
1609     self->decorations =
1610         (OB_FRAME_DECOR_TITLEBAR |
1611          OB_FRAME_DECOR_HANDLE |
1612          OB_FRAME_DECOR_GRIPS |
1613          OB_FRAME_DECOR_BORDER |
1614          OB_FRAME_DECOR_ICON |
1615          OB_FRAME_DECOR_ALLDESKTOPS |
1616          OB_FRAME_DECOR_ICONIFY |
1617          OB_FRAME_DECOR_MAXIMIZE |
1618          OB_FRAME_DECOR_SHADE |
1619          OB_FRAME_DECOR_CLOSE);
1620     self->functions =
1621         (OB_CLIENT_FUNC_RESIZE |
1622          OB_CLIENT_FUNC_MOVE |
1623          OB_CLIENT_FUNC_ICONIFY |
1624          OB_CLIENT_FUNC_MAXIMIZE |
1625          OB_CLIENT_FUNC_SHADE |
1626          OB_CLIENT_FUNC_CLOSE |
1627          OB_CLIENT_FUNC_BELOW |
1628          OB_CLIENT_FUNC_ABOVE |
1629          OB_CLIENT_FUNC_UNDECORATE);
1630
1631     if (!(self->min_size.width < self->max_size.width ||
1632           self->min_size.height < self->max_size.height))
1633         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1634
1635     switch (self->type) {
1636     case OB_CLIENT_TYPE_NORMAL:
1637         /* normal windows retain all of the possible decorations and
1638            functionality, and are the only windows that you can fullscreen */
1639         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1640         break;
1641
1642     case OB_CLIENT_TYPE_DIALOG:
1643     case OB_CLIENT_TYPE_UTILITY:
1644         /* these windows don't have anything added or removed by default */
1645         break;
1646
1647     case OB_CLIENT_TYPE_MENU:
1648     case OB_CLIENT_TYPE_TOOLBAR:
1649         /* these windows can't iconify or maximize */
1650         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1651                                OB_FRAME_DECOR_MAXIMIZE);
1652         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1653                              OB_CLIENT_FUNC_MAXIMIZE);
1654         break;
1655
1656     case OB_CLIENT_TYPE_SPLASH:
1657         /* these don't get get any decorations, and the only thing you can
1658            do with them is move them */
1659         self->decorations = 0;
1660         self->functions = OB_CLIENT_FUNC_MOVE;
1661         break;
1662
1663     case OB_CLIENT_TYPE_DESKTOP:
1664         /* these windows are not manipulated by the window manager */
1665         self->decorations = 0;
1666         self->functions = 0;
1667         break;
1668
1669     case OB_CLIENT_TYPE_DOCK:
1670         /* these windows are not manipulated by the window manager, but they
1671            can set below layer which has a special meaning */
1672         self->decorations = 0;
1673         self->functions = OB_CLIENT_FUNC_BELOW;
1674         break;
1675     }
1676
1677     /* Mwm Hints are applied subtractively to what has already been chosen for
1678        decor and functionality */
1679     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1680         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1681             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1682                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1683             {
1684                 /* if the mwm hints request no handle or title, then all
1685                    decorations are disabled, but keep the border if that's
1686                    specified */
1687                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1688                     self->decorations = OB_FRAME_DECOR_BORDER;
1689                 else
1690                     self->decorations = 0;
1691             }
1692         }
1693     }
1694
1695     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1696         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1697             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1698                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1699             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1700                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1701             /* dont let mwm hints kill any buttons
1702                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1703                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1704                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1705                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1706             */
1707             /* dont let mwm hints kill the close button
1708                if (! (self->mwmhints.functions & MwmFunc_Close))
1709                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1710         }
1711     }
1712
1713     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1714         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1715     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1716         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1717     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1718         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1719
1720     /* can't maximize without moving/resizing */
1721     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1722           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1723           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1724         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1725         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1726     }
1727
1728     if (self->max_horz && self->max_vert) {
1729         /* you can't resize fully maximized windows */
1730         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1731         /* kill the handle on fully maxed windows */
1732         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1733     }
1734
1735     /* If there are no decorations to remove, don't allow the user to try
1736        toggle the state */
1737     if (self->decorations == 0)
1738         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1739
1740     /* finally, the user can have requested no decorations, which overrides
1741        everything (but doesnt give it a border if it doesnt have one) */
1742     if (self->undecorated) {
1743         if (config_theme_keepborder)
1744             self->decorations &= OB_FRAME_DECOR_BORDER;
1745         else
1746             self->decorations = 0;
1747     }
1748
1749     /* if we don't have a titlebar, then we cannot shade! */
1750     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1751         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1752
1753     /* now we need to check against rules for the client's current state */
1754     if (self->fullscreen) {
1755         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1756                             OB_CLIENT_FUNC_FULLSCREEN |
1757                             OB_CLIENT_FUNC_ICONIFY);
1758         self->decorations = 0;
1759     }
1760
1761     client_change_allowed_actions(self);
1762
1763     if (reconfig)
1764         client_reconfigure(self);
1765 }
1766
1767 static void client_change_allowed_actions(ObClient *self)
1768 {
1769     gulong actions[12];
1770     gint num = 0;
1771
1772     /* desktop windows are kept on all desktops */
1773     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1774         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1775
1776     if (self->functions & OB_CLIENT_FUNC_SHADE)
1777         actions[num++] = prop_atoms.net_wm_action_shade;
1778     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1779         actions[num++] = prop_atoms.net_wm_action_close;
1780     if (self->functions & OB_CLIENT_FUNC_MOVE)
1781         actions[num++] = prop_atoms.net_wm_action_move;
1782     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1783         actions[num++] = prop_atoms.net_wm_action_minimize;
1784     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1785         actions[num++] = prop_atoms.net_wm_action_resize;
1786     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1787         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1788     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1789         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1790         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1791     }
1792     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1793         actions[num++] = prop_atoms.net_wm_action_above;
1794     if (self->functions & OB_CLIENT_FUNC_BELOW)
1795         actions[num++] = prop_atoms.net_wm_action_below;
1796     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1797         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1798
1799     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1800
1801     /* make sure the window isn't breaking any rules now */
1802
1803     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1804         if (self->frame) client_shade(self, FALSE);
1805         else self->shaded = FALSE;
1806     }
1807     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1808         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1809         else self->iconic = FALSE;
1810     }
1811     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1812         if (self->frame) client_fullscreen(self, FALSE);
1813         else self->fullscreen = FALSE;
1814     }
1815     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1816                                                          self->max_vert)) {
1817         if (self->frame) client_maximize(self, FALSE, 0);
1818         else self->max_vert = self->max_horz = FALSE;
1819     }
1820 }
1821
1822 void client_reconfigure(ObClient *self)
1823 {
1824     client_configure(self, self->area.x, self->area.y,
1825                      self->area.width, self->area.height,
1826                      FALSE, TRUE);
1827 }
1828
1829 void client_update_wmhints(ObClient *self)
1830 {
1831     XWMHints *hints;
1832
1833     /* assume a window takes input if it doesnt specify */
1834     self->can_focus = TRUE;
1835
1836     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1837         gboolean ur;
1838
1839         if (hints->flags & InputHint)
1840             self->can_focus = hints->input;
1841
1842         /* only do this when first managing the window *AND* when we aren't
1843            starting up! */
1844         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1845             if (hints->flags & StateHint)
1846                 self->iconic = hints->initial_state == IconicState;
1847
1848         ur = self->urgent;
1849         self->urgent = (hints->flags & XUrgencyHint);
1850         if (self->urgent && !ur)
1851             client_hilite(self, TRUE);
1852         else if (!self->urgent && ur && self->demands_attention)
1853             client_hilite(self, FALSE);
1854
1855         if (!(hints->flags & WindowGroupHint))
1856             hints->window_group = None;
1857
1858         /* did the group state change? */
1859         if (hints->window_group !=
1860             (self->group ? self->group->leader : None))
1861         {
1862             ObGroup *oldgroup = self->group;
1863
1864             /* remove from the old group if there was one */
1865             if (self->group != NULL) {
1866                 group_remove(self->group, self);
1867                 self->group = NULL;
1868             }
1869
1870             /* add ourself to the group if we have one */
1871             if (hints->window_group != None) {
1872                 self->group = group_add(hints->window_group, self);
1873             }
1874
1875             /* Put ourselves into the new group's transient tree, and remove
1876                ourselves from the old group's */
1877             client_update_transient_tree(self, oldgroup, self->group,
1878                                          self->transient_for,
1879                                          self->transient_for);
1880
1881             /* Lastly, being in a group, or not, can change if the window is
1882                transient for anything.
1883
1884                The logic for this is:
1885                self->transient = TRUE always if the window wants to be
1886                transient for something, even if transient_for was NULL because
1887                it wasn't in a group before.
1888
1889                If transient_for was NULL and oldgroup was NULL we can assume
1890                that when we add the new group, it will become transient for
1891                something.
1892
1893                If transient_for was OB_TRAN_GROUP, then it must have already
1894                had a group. If it is getting a new group, the above call to
1895                client_update_transient_tree has already taken care of
1896                everything ! If it is losing all group status then it will
1897                no longer be transient for anything and that needs to be
1898                updated.
1899             */
1900             if (self->transient &&
1901                 ((self->transient_for == NULL && oldgroup == NULL) ||
1902                  (self->transient_for == OB_TRAN_GROUP && !self->group)))
1903                 client_update_transient_for(self);
1904         }
1905
1906         /* the WM_HINTS can contain an icon */
1907         if (hints->flags & IconPixmapHint)
1908             client_update_icons(self);
1909
1910         XFree(hints);
1911     }
1912 }
1913
1914 void client_update_title(ObClient *self)
1915 {
1916     gchar *data = NULL;
1917     gchar *visible = NULL;
1918
1919     g_free(self->title);
1920
1921     /* try netwm */
1922     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1923         /* try old x stuff */
1924         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1925               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1926             if (self->transient) {
1927                 /*
1928                   GNOME alert windows are not given titles:
1929                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1930                 */
1931                 data = g_strdup("");
1932             } else
1933                 data = g_strdup("Unnamed Window");
1934         }
1935     }
1936
1937     if (self->client_machine) {
1938         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1939         g_free(data);
1940     } else
1941         visible = data;
1942
1943     PROP_SETS(self->window, net_wm_visible_name, visible);
1944     self->title = visible;
1945
1946     if (self->frame)
1947         frame_adjust_title(self->frame);
1948
1949     /* update the icon title */
1950     data = NULL;
1951     g_free(self->icon_title);
1952
1953     /* try netwm */
1954     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1955         /* try old x stuff */
1956         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1957               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1958             data = g_strdup(self->title);
1959
1960     if (self->client_machine) {
1961         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1962         g_free(data);
1963     } else
1964         visible = data;
1965
1966     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
1967     self->icon_title = visible;
1968 }
1969
1970 void client_update_strut(ObClient *self)
1971 {
1972     guint num;
1973     guint32 *data;
1974     gboolean got = FALSE;
1975     StrutPartial strut;
1976
1977     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1978                     &data, &num)) {
1979         if (num == 12) {
1980             got = TRUE;
1981             STRUT_PARTIAL_SET(strut,
1982                               data[0], data[2], data[1], data[3],
1983                               data[4], data[5], data[8], data[9],
1984                               data[6], data[7], data[10], data[11]);
1985         }
1986         g_free(data);
1987     }
1988
1989     if (!got &&
1990         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1991         if (num == 4) {
1992             const Rect *a;
1993
1994             got = TRUE;
1995
1996             /* use the screen's width/height */
1997             a = screen_physical_area();
1998
1999             STRUT_PARTIAL_SET(strut,
2000                               data[0], data[2], data[1], data[3],
2001                               a->y, a->y + a->height - 1,
2002                               a->x, a->x + a->width - 1,
2003                               a->y, a->y + a->height - 1,
2004                               a->x, a->x + a->width - 1);
2005         }
2006         g_free(data);
2007     }
2008
2009     if (!got)
2010         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2011                           0, 0, 0, 0, 0, 0, 0, 0);
2012
2013     if (!STRUT_EQUAL(strut, self->strut)) {
2014         self->strut = strut;
2015
2016         /* updating here is pointless while we're being mapped cuz we're not in
2017            the client list yet */
2018         if (self->frame)
2019             screen_update_areas();
2020     }
2021 }
2022
2023 void client_update_icons(ObClient *self)
2024 {
2025     guint num;
2026     guint32 *data;
2027     guint w, h, i, j;
2028
2029     for (i = 0; i < self->nicons; ++i)
2030         g_free(self->icons[i].data);
2031     if (self->nicons > 0)
2032         g_free(self->icons);
2033     self->nicons = 0;
2034
2035     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2036         /* figure out how many valid icons are in here */
2037         i = 0;
2038         while (num - i > 2) {
2039             w = data[i++];
2040             h = data[i++];
2041             i += w * h;
2042             if (i > num || w*h == 0) break;
2043             ++self->nicons;
2044         }
2045
2046         self->icons = g_new(ObClientIcon, self->nicons);
2047
2048         /* store the icons */
2049         i = 0;
2050         for (j = 0; j < self->nicons; ++j) {
2051             guint x, y, t;
2052
2053             w = self->icons[j].width = data[i++];
2054             h = self->icons[j].height = data[i++];
2055
2056             if (w*h == 0) continue;
2057
2058             self->icons[j].data = g_new(RrPixel32, w * h);
2059             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2060                 if (x >= w) {
2061                     x = 0;
2062                     ++y;
2063                 }
2064                 self->icons[j].data[t] =
2065                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2066                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2067                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2068                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2069             }
2070             g_assert(i <= num);
2071         }
2072
2073         g_free(data);
2074     } else {
2075         XWMHints *hints;
2076
2077         if ((hints = XGetWMHints(ob_display, self->window))) {
2078             if (hints->flags & IconPixmapHint) {
2079                 self->nicons++;
2080                 self->icons = g_new(ObClientIcon, self->nicons);
2081                 xerror_set_ignore(TRUE);
2082                 if (!RrPixmapToRGBA(ob_rr_inst,
2083                                     hints->icon_pixmap,
2084                                     (hints->flags & IconMaskHint ?
2085                                      hints->icon_mask : None),
2086                                     &self->icons[self->nicons-1].width,
2087                                     &self->icons[self->nicons-1].height,
2088                                     &self->icons[self->nicons-1].data)){
2089                     g_free(&self->icons[self->nicons-1]);
2090                     self->nicons--;
2091                 }
2092                 xerror_set_ignore(FALSE);
2093             }
2094             XFree(hints);
2095         }
2096     }
2097
2098     /* set the default icon onto the window
2099        in theory, this could be a race, but if a window doesn't set an icon
2100        or removes it entirely, it's not very likely it is going to set one
2101        right away afterwards */
2102     if (self->nicons == 0) {
2103         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2104         gulong *data;
2105
2106         data = g_new(gulong, 48*48+2);
2107         data[0] = data[1] =  48;
2108         for (i = 0; i < 48*48; ++i)
2109             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2110                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2111                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2112                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2113         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2114         g_free(data);
2115     } else if (self->frame)
2116         /* don't draw the icon empty if we're just setting one now anyways,
2117            we'll get the property change any second */
2118         frame_adjust_icon(self->frame);
2119 }
2120
2121 void client_update_user_time(ObClient *self)
2122 {
2123     guint32 time;
2124     gboolean got = FALSE;
2125
2126     if (self->user_time_window)
2127         got = PROP_GET32(self->user_time_window,
2128                          net_wm_user_time, cardinal, &time);
2129     if (!got)
2130         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2131
2132     if (got) {
2133         /* we set this every time, not just when it grows, because in practice
2134            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2135            backward we don't want all windows to stop focusing. we'll just
2136            assume noone is setting times older than the last one, cuz that
2137            would be pretty stupid anyways
2138         */
2139         self->user_time = time;
2140
2141         /*ob_debug("window %s user time %u\n", self->title, time);*/
2142     }
2143 }
2144
2145 void client_update_user_time_window(ObClient *self)
2146 {
2147     guint32 w;
2148
2149     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2150         w = None;
2151
2152     if (w != self->user_time_window) {
2153         /* remove the old window */
2154         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2155         self->user_time_window = None;
2156
2157         if (self->group && self->group->leader == w) {
2158             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2159                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2160             /* do it anyways..? */
2161         }
2162         else if (w == self->window) {
2163             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2164                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2165             w = None; /* don't do it */
2166         }
2167
2168         /* add the new window */
2169         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2170         self->user_time_window = w;
2171
2172         /* and update from it */
2173         client_update_user_time(self);
2174     }
2175 }
2176
2177 void client_update_icon_geometry(ObClient *self)
2178 {
2179     guint num;
2180     guint32 *data;
2181
2182     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2183
2184     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2185         && num == 4)
2186     {
2187         /* don't let them set it with an area < 0 */
2188         RECT_SET(self->icon_geometry, data[0], data[1],
2189                  MAX(data[2],0), MAX(data[3],0));
2190     }
2191 }
2192
2193 static void client_get_session_ids(ObClient *self)
2194 {
2195     guint32 leader;
2196     gboolean got;
2197     gchar *s;
2198     gchar **ss;
2199
2200     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2201         leader = None;
2202
2203     /* get the SM_CLIENT_ID */
2204     got = FALSE;
2205     if (leader)
2206         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2207     if (!got)
2208         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2209
2210     /* get the WM_CLASS (name and class). make them "" if they are not
2211        provided */
2212     got = FALSE;
2213     if (leader)
2214         got = PROP_GETSS(leader, wm_class, locale, &ss);
2215     if (!got)
2216         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2217
2218     if (got) {
2219         if (ss[0]) {
2220             self->name = g_strdup(ss[0]);
2221             if (ss[1])
2222                 self->class = g_strdup(ss[1]);
2223         }
2224         g_strfreev(ss);
2225     }
2226
2227     if (self->name == NULL) self->name = g_strdup("");
2228     if (self->class == NULL) self->class = g_strdup("");
2229
2230     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2231     got = FALSE;
2232     if (leader)
2233         got = PROP_GETS(leader, wm_window_role, locale, &s);
2234     if (!got)
2235         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2236
2237     if (got)
2238         self->role = s;
2239     else
2240         self->role = g_strdup("");
2241
2242     /* get the WM_COMMAND */
2243     got = FALSE;
2244
2245     if (leader)
2246         got = PROP_GETSS(leader, wm_command, locale, &ss);
2247     if (!got)
2248         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2249
2250     if (got) {
2251         /* merge/mash them all together */
2252         gchar *merge = NULL;
2253         gint i;
2254
2255         for (i = 0; ss[i]; ++i) {
2256             gchar *tmp = merge;
2257             if (merge)
2258                 merge = g_strconcat(merge, ss[i], NULL);
2259             else
2260                 merge = g_strconcat(ss[i], NULL);
2261             g_free(tmp);
2262         }
2263         g_strfreev(ss);
2264
2265         self->wm_command = merge;
2266     }
2267
2268     /* get the WM_CLIENT_MACHINE */
2269     got = FALSE;
2270     if (leader)
2271         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2272     if (!got)
2273         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2274
2275     if (got) {
2276         gchar localhost[128];
2277
2278         gethostname(localhost, 127);
2279         localhost[127] = '\0';
2280         if (strcmp(localhost, s) != 0)
2281             self->client_machine = s;
2282         else
2283             g_free(s);
2284     }
2285 }
2286
2287 static void client_change_wm_state(ObClient *self)
2288 {
2289     gulong state[2];
2290     glong old;
2291
2292     old = self->wmstate;
2293
2294     if (self->shaded || self->iconic ||
2295         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2296     {
2297         self->wmstate = IconicState;
2298     } else
2299         self->wmstate = NormalState;
2300
2301     if (old != self->wmstate) {
2302         PROP_MSG(self->window, kde_wm_change_state,
2303                  self->wmstate, 1, 0, 0);
2304
2305         state[0] = self->wmstate;
2306         state[1] = None;
2307         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2308     }
2309 }
2310
2311 static void client_change_state(ObClient *self)
2312 {
2313     gulong netstate[11];
2314     guint num;
2315
2316     num = 0;
2317     if (self->modal)
2318         netstate[num++] = prop_atoms.net_wm_state_modal;
2319     if (self->shaded)
2320         netstate[num++] = prop_atoms.net_wm_state_shaded;
2321     if (self->iconic)
2322         netstate[num++] = prop_atoms.net_wm_state_hidden;
2323     if (self->skip_taskbar)
2324         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2325     if (self->skip_pager)
2326         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2327     if (self->fullscreen)
2328         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2329     if (self->max_vert)
2330         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2331     if (self->max_horz)
2332         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2333     if (self->above)
2334         netstate[num++] = prop_atoms.net_wm_state_above;
2335     if (self->below)
2336         netstate[num++] = prop_atoms.net_wm_state_below;
2337     if (self->demands_attention)
2338         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2339     if (self->undecorated)
2340         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2341     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2342
2343     if (self->frame)
2344         frame_adjust_state(self->frame);
2345 }
2346
2347 ObClient *client_search_focus_tree(ObClient *self)
2348 {
2349     GSList *it;
2350     ObClient *ret;
2351
2352     for (it = self->transients; it; it = g_slist_next(it)) {
2353         if (client_focused(it->data)) return it->data;
2354         if ((ret = client_search_focus_tree(it->data))) return ret;
2355     }
2356     return NULL;
2357 }
2358
2359 ObClient *client_search_focus_tree_full(ObClient *self)
2360 {
2361     if (self->transient_for) {
2362         if (self->transient_for != OB_TRAN_GROUP) {
2363             return client_search_focus_tree_full(self->transient_for);
2364         } else {
2365             GSList *it;
2366
2367             for (it = self->group->members; it; it = g_slist_next(it)) {
2368                 if (it->data != self) {
2369                     ObClient *c = it->data;
2370
2371                     if (client_focused(c)) return c;
2372                     if ((c = client_search_focus_tree(it->data))) return c;
2373                 }
2374             }
2375         }
2376     }
2377
2378     /* this function checks the whole tree, the client_search_focus_tree
2379        does not, so we need to check this window */
2380     if (client_focused(self))
2381         return self;
2382     return client_search_focus_tree(self);
2383 }
2384
2385 gboolean client_has_parent(ObClient *self)
2386 {
2387     if (self->transient_for) {
2388         if (self->transient_for != OB_TRAN_GROUP) {
2389             if (client_normal(self->transient_for))
2390                 return TRUE;
2391         }
2392         else if (self->group) {
2393             GSList *it;
2394
2395             for (it = self->group->members; it; it = g_slist_next(it)) {
2396                 if (it->data != self && client_normal(it->data))
2397                     return TRUE;
2398             }
2399         }
2400     }
2401     return FALSE;
2402 }
2403
2404 static ObStackingLayer calc_layer(ObClient *self)
2405 {
2406     ObStackingLayer l;
2407
2408     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2409         l = OB_STACKING_LAYER_DESKTOP;
2410     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2411         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2412         else l = OB_STACKING_LAYER_ABOVE;
2413     }
2414     else if ((self->fullscreen ||
2415               /* No decorations and fills the monitor = oldskool fullscreen.
2416                  But not for maximized windows.
2417               */
2418               (self->decorations == 0 &&
2419                !(self->max_horz && self->max_vert) &&
2420                RECT_EQUAL(self->area,
2421                           *screen_physical_area_monitor
2422                           (client_monitor(self))))) &&
2423              (client_focused(self) || client_search_focus_tree(self)))
2424         l = OB_STACKING_LAYER_FULLSCREEN;
2425     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2426     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2427     else l = OB_STACKING_LAYER_NORMAL;
2428
2429     return l;
2430 }
2431
2432 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2433                                         ObStackingLayer min)
2434 {
2435     ObStackingLayer old, own;
2436     GSList *it;
2437
2438     old = self->layer;
2439     own = calc_layer(self);
2440     self->layer = MAX(own, min);
2441
2442     if (self->layer != old) {
2443         stacking_remove(CLIENT_AS_WINDOW(self));
2444         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2445     }
2446
2447     for (it = self->transients; it; it = g_slist_next(it))
2448         client_calc_layer_recursive(it->data, orig,
2449                                     self->layer);
2450 }
2451
2452 void client_calc_layer(ObClient *self)
2453 {
2454     ObClient *orig;
2455     GSList *it;
2456
2457     orig = self;
2458
2459     /* transients take on the layer of their parents */
2460     it = client_search_all_top_parents(self);
2461
2462     for (; it; it = g_slist_next(it))
2463         client_calc_layer_recursive(it->data, orig, 0);
2464 }
2465
2466 gboolean client_should_show(ObClient *self)
2467 {
2468     if (self->iconic)
2469         return FALSE;
2470     if (client_normal(self) && screen_showing_desktop)
2471         return FALSE;
2472     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2473         return TRUE;
2474
2475     return FALSE;
2476 }
2477
2478 gboolean client_show(ObClient *self)
2479 {
2480     gboolean show = FALSE;
2481
2482     if (client_should_show(self)) {
2483         frame_show(self->frame);
2484         show = TRUE;
2485
2486         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2487            it needs to be in IconicState. This includes when it is on another
2488            desktop!
2489         */
2490         client_change_wm_state(self);
2491     }
2492     return show;
2493 }
2494
2495 gboolean client_hide(ObClient *self)
2496 {
2497     gboolean hide = FALSE;
2498
2499     if (!client_should_show(self)) {
2500         if (self == focus_client) {
2501             /* if there is a grab going on, then we need to cancel it. if we
2502                move focus during the grab, applications will get
2503                NotifyWhileGrabbed events and ignore them !
2504
2505                actions should not rely on being able to move focus during an
2506                interactive grab.
2507             */
2508             event_cancel_all_key_grabs();
2509         }
2510
2511         frame_hide(self->frame);
2512         hide = TRUE;
2513
2514         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2515            it needs to be in IconicState. This includes when it is on another
2516            desktop!
2517         */
2518         client_change_wm_state(self);
2519     }
2520     return hide;
2521 }
2522
2523 void client_showhide(ObClient *self)
2524 {
2525     if (!client_show(self))
2526         client_hide(self);
2527 }
2528
2529 gboolean client_normal(ObClient *self) {
2530     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2531               self->type == OB_CLIENT_TYPE_DOCK ||
2532               self->type == OB_CLIENT_TYPE_SPLASH);
2533 }
2534
2535 gboolean client_helper(ObClient *self)
2536 {
2537     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2538             self->type == OB_CLIENT_TYPE_MENU ||
2539             self->type == OB_CLIENT_TYPE_TOOLBAR);
2540 }
2541
2542 gboolean client_mouse_focusable(ObClient *self)
2543 {
2544     return !(self->type == OB_CLIENT_TYPE_MENU ||
2545              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2546              self->type == OB_CLIENT_TYPE_SPLASH ||
2547              self->type == OB_CLIENT_TYPE_DOCK);
2548 }
2549
2550 gboolean client_enter_focusable(ObClient *self)
2551 {
2552     /* you can focus desktops but it shouldn't on enter */
2553     return (client_mouse_focusable(self) &&
2554             self->type != OB_CLIENT_TYPE_DESKTOP);
2555 }
2556
2557
2558 static void client_apply_startup_state(ObClient *self,
2559                                        gint x, gint y, gint w, gint h)
2560 {
2561     /* save the states that we are going to apply */
2562     gboolean iconic = self->iconic;
2563     gboolean fullscreen = self->fullscreen;
2564     gboolean undecorated = self->undecorated;
2565     gboolean shaded = self->shaded;
2566     gboolean demands_attention = self->demands_attention;
2567     gboolean max_horz = self->max_horz;
2568     gboolean max_vert = self->max_vert;
2569
2570     /* turn them all off in the client, so they won't affect the window
2571        being placed */
2572     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2573         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2574
2575     /* move the client to its placed position, or it it's already there,
2576        generate a ConfigureNotify telling the client where it is.
2577
2578        do this after adjusting the frame. otherwise it gets all weird and
2579        clients don't work right
2580
2581        do this before applying the states so they have the correct
2582        pre-max/pre-fullscreen values
2583     */
2584     client_configure(self, x, y, w, h, FALSE, TRUE);
2585     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2586              self->window, self->area.x, self->area.y,
2587              self->area.width, self->area.height);
2588
2589     /* apply the states. these are in a carefully crafted order.. */
2590
2591     if (iconic)
2592         client_iconify(self, TRUE, FALSE, TRUE);
2593     if (fullscreen)
2594         client_fullscreen(self, TRUE);
2595     if (undecorated)
2596         client_set_undecorated(self, TRUE);
2597     if (shaded)
2598         client_shade(self, TRUE);
2599     if (demands_attention)
2600         client_hilite(self, TRUE);
2601
2602     if (max_vert && max_horz)
2603         client_maximize(self, TRUE, 0);
2604     else if (max_vert)
2605         client_maximize(self, TRUE, 2);
2606     else if (max_horz)
2607         client_maximize(self, TRUE, 1);
2608
2609     /* set the desktop hint, to make sure that it always exists */
2610     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2611
2612     /* nothing to do for the other states:
2613        skip_taskbar
2614        skip_pager
2615        modal
2616        above
2617        below
2618     */
2619 }
2620
2621 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2622 {
2623     /* these should be the current values. this is for when you're not moving,
2624        just resizing */
2625     g_assert(*x == self->area.x);
2626     g_assert(oldw == self->area.width);
2627
2628     /* horizontal */
2629     switch (self->gravity) {
2630     default:
2631     case NorthWestGravity:
2632     case WestGravity:
2633     case SouthWestGravity:
2634     case StaticGravity:
2635     case ForgetGravity:
2636         break;
2637     case NorthGravity:
2638     case CenterGravity:
2639     case SouthGravity:
2640         *x -= (neww - oldw) / 2;
2641         break;
2642     case NorthEastGravity:
2643     case EastGravity:
2644     case SouthEastGravity:
2645         *x -= neww - oldw;
2646         break;
2647     }
2648 }
2649
2650 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2651 {
2652     /* these should be the current values. this is for when you're not moving,
2653        just resizing */
2654     g_assert(*y == self->area.y);
2655     g_assert(oldh == self->area.height);
2656
2657     /* vertical */
2658     switch (self->gravity) {
2659     default:
2660     case NorthWestGravity:
2661     case NorthGravity:
2662     case NorthEastGravity:
2663     case StaticGravity:
2664     case ForgetGravity:
2665         break;
2666     case WestGravity:
2667     case CenterGravity:
2668     case EastGravity:
2669         *y -= (newh - oldh) / 2;
2670         break;
2671     case SouthWestGravity:
2672     case SouthGravity:
2673     case SouthEastGravity:
2674         *y -= newh - oldh;
2675         break;
2676     }
2677 }
2678
2679 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2680                           gint *logicalw, gint *logicalh,
2681                           gboolean user)
2682 {
2683     Rect desired_area = {*x, *y, *w, *h};
2684
2685     /* make the frame recalculate its dimentions n shit without changing
2686        anything visible for real, this way the constraints below can work with
2687        the updated frame dimensions. */
2688     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2689
2690     /* work within the prefered sizes given by the window */
2691     if (!(*w == self->area.width && *h == self->area.height)) {
2692         gint basew, baseh, minw, minh;
2693
2694         /* base size is substituted with min size if not specified */
2695         if (self->base_size.width || self->base_size.height) {
2696             basew = self->base_size.width;
2697             baseh = self->base_size.height;
2698         } else {
2699             basew = self->min_size.width;
2700             baseh = self->min_size.height;
2701         }
2702         /* min size is substituted with base size if not specified */
2703         if (self->min_size.width || self->min_size.height) {
2704             minw = self->min_size.width;
2705             minh = self->min_size.height;
2706         } else {
2707             minw = self->base_size.width;
2708             minh = self->base_size.height;
2709         }
2710
2711         /* if this is a user-requested resize, then check against min/max
2712            sizes */
2713
2714         /* smaller than min size or bigger than max size? */
2715         if (*w > self->max_size.width) *w = self->max_size.width;
2716         if (*w < minw) *w = minw;
2717         if (*h > self->max_size.height) *h = self->max_size.height;
2718         if (*h < minh) *h = minh;
2719
2720         *w -= basew;
2721         *h -= baseh;
2722
2723         /* keep to the increments */
2724         *w /= self->size_inc.width;
2725         *h /= self->size_inc.height;
2726
2727         /* you cannot resize to nothing */
2728         if (basew + *w < 1) *w = 1 - basew;
2729         if (baseh + *h < 1) *h = 1 - baseh;
2730
2731         /* save the logical size */
2732         *logicalw = self->size_inc.width > 1 ? *w : *w + basew;
2733         *logicalh = self->size_inc.height > 1 ? *h : *h + baseh;
2734
2735         *w *= self->size_inc.width;
2736         *h *= self->size_inc.height;
2737
2738         *w += basew;
2739         *h += baseh;
2740
2741         /* adjust the height to match the width for the aspect ratios.
2742            for this, min size is not substituted for base size ever. */
2743         *w -= self->base_size.width;
2744         *h -= self->base_size.height;
2745
2746         if (!self->fullscreen) {
2747             if (self->min_ratio)
2748                 if (*h * self->min_ratio > *w) {
2749                     *h = (gint)(*w / self->min_ratio);
2750
2751                     /* you cannot resize to nothing */
2752                     if (*h < 1) {
2753                         *h = 1;
2754                         *w = (gint)(*h * self->min_ratio);
2755                     }
2756                 }
2757             if (self->max_ratio)
2758                 if (*h * self->max_ratio < *w) {
2759                     *h = (gint)(*w / self->max_ratio);
2760
2761                     /* you cannot resize to nothing */
2762                     if (*h < 1) {
2763                         *h = 1;
2764                         *w = (gint)(*h * self->min_ratio);
2765                     }
2766                 }
2767         }
2768
2769         *w += self->base_size.width;
2770         *h += self->base_size.height;
2771     }
2772
2773     /* gets the frame's position */
2774     frame_client_gravity(self->frame, x, y, *w, *h);
2775
2776     /* these positions are frame positions, not client positions */
2777
2778     /* set the size and position if fullscreen */
2779     if (self->fullscreen) {
2780         Rect *a;
2781         guint i;
2782
2783         i = screen_find_monitor(&desired_area);
2784         a = screen_physical_area_monitor(i);
2785
2786         *x = a->x;
2787         *y = a->y;
2788         *w = a->width;
2789         *h = a->height;
2790
2791         user = FALSE; /* ignore if the client can't be moved/resized when it
2792                          is fullscreening */
2793     } else if (self->max_horz || self->max_vert) {
2794         Rect *a;
2795         guint i;
2796
2797         i = screen_find_monitor(&desired_area);
2798         a = screen_area_monitor(self->desktop, i);
2799
2800         /* set the size and position if maximized */
2801         if (self->max_horz) {
2802             *x = a->x;
2803             *w = a->width - self->frame->size.left - self->frame->size.right;
2804         }
2805         if (self->max_vert) {
2806             *y = a->y;
2807             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2808         }
2809
2810         user = FALSE; /* ignore if the client can't be moved/resized when it
2811                          is maximizing */
2812     }
2813
2814     /* gets the client's position */
2815     frame_frame_gravity(self->frame, x, y, *w, *h);
2816
2817     /* these override the above states! if you cant move you can't move! */
2818     if (user) {
2819         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2820             *x = self->area.x;
2821             *y = self->area.y;
2822         }
2823         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2824             *w = self->area.width;
2825             *h = self->area.height;
2826         }
2827     }
2828
2829     g_assert(*w > 0);
2830     g_assert(*h > 0);
2831 }
2832
2833
2834 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2835                       gboolean user, gboolean final)
2836 {
2837     gint oldw, oldh;
2838     gboolean send_resize_client;
2839     gboolean moved = FALSE, resized = FALSE;
2840     gboolean fmoved, fresized;
2841     guint fdecor = self->frame->decorations;
2842     gboolean fhorz = self->frame->max_horz;
2843     gboolean fvert = self->frame->max_vert;
2844     gint logicalw, logicalh;
2845
2846     /* find the new x, y, width, and height (and logical size) */
2847     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2848
2849     /* set the logical size if things changed */
2850     if (!(w == self->area.width && h == self->area.height))
2851         SIZE_SET(self->logical_size, logicalw, logicalh);
2852
2853     /* figure out if we moved or resized or what */
2854     moved = (x != self->area.x || y != self->area.y);
2855     resized = (w != self->area.width || h != self->area.height);
2856
2857     oldw = self->area.width;
2858     oldh = self->area.height;
2859     RECT_SET(self->area, x, y, w, h);
2860
2861     /* for app-requested resizes, always resize if 'resized' is true.
2862        for user-requested ones, only resize if final is true, or when
2863        resizing in redraw mode */
2864     send_resize_client = ((!user && resized) ||
2865                           (user && (final ||
2866                                     (resized && config_resize_redraw))));
2867
2868     /* if the client is enlarging, then resize the client before the frame */
2869     if (send_resize_client && (w > oldw || h > oldh)) {
2870         XMoveResizeWindow(ob_display, self->window,
2871                           self->frame->size.left, self->frame->size.top,
2872                           MAX(w, oldw), MAX(h, oldh));
2873         frame_adjust_client_area(self->frame);
2874     }
2875
2876     /* find the frame's dimensions and move/resize it */
2877     fmoved = moved;
2878     fresized = resized;
2879
2880     /* if decorations changed, then readjust everything for the frame */
2881     if (self->decorations != fdecor ||
2882         self->max_horz != fhorz || self->max_vert != fvert)
2883     {
2884         fmoved = fresized = TRUE;
2885     }
2886
2887     /* adjust the frame */
2888     if (fmoved || fresized)
2889         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2890
2891     if ((!user || (user && final)) && !resized)
2892     {
2893         XEvent event;
2894
2895         /* we have reset the client to 0 border width, so don't include
2896            it in these coords */
2897         POINT_SET(self->root_pos,
2898                   self->frame->area.x + self->frame->size.left -
2899                   self->border_width,
2900                   self->frame->area.y + self->frame->size.top -
2901                   self->border_width);
2902
2903         event.type = ConfigureNotify;
2904         event.xconfigure.display = ob_display;
2905         event.xconfigure.event = self->window;
2906         event.xconfigure.window = self->window;
2907
2908         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2909                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2910
2911         /* root window real coords */
2912         event.xconfigure.x = self->root_pos.x;
2913         event.xconfigure.y = self->root_pos.y;
2914         event.xconfigure.width = w;
2915         event.xconfigure.height = h;
2916         event.xconfigure.border_width = self->border_width;
2917         event.xconfigure.above = None;
2918         event.xconfigure.override_redirect = FALSE;
2919         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2920                    FALSE, StructureNotifyMask, &event);
2921     }
2922
2923     /* if the client is shrinking, then resize the frame before the client.
2924
2925        both of these resize sections may run, because the top one only resizes
2926        in the direction that is growing
2927      */
2928     if (send_resize_client && (w <= oldw || h <= oldh)) {
2929         frame_adjust_client_area(self->frame);
2930         XMoveResizeWindow(ob_display, self->window,
2931                           self->frame->size.left, self->frame->size.top, w, h);
2932     }
2933
2934     if (!resized) {
2935         /* when the client has StaticGravity, it likes to move around.
2936            also this correctly positions the client when it maps */
2937         XMoveWindow(ob_display, self->window,
2938                     self->frame->size.left, self->frame->size.top);
2939     }
2940
2941     XFlush(ob_display);
2942 }
2943
2944 void client_fullscreen(ObClient *self, gboolean fs)
2945 {
2946     gint x, y, w, h;
2947
2948     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2949         self->fullscreen == fs) return;                   /* already done */
2950
2951     self->fullscreen = fs;
2952     client_change_state(self); /* change the state hints on the client */
2953
2954     if (fs) {
2955         self->pre_fullscreen_area = self->area;
2956         /* if the window is maximized, its area isn't all that meaningful.
2957            save it's premax area instead. */
2958         if (self->max_horz) {
2959             self->pre_fullscreen_area.x = self->pre_max_area.x;
2960             self->pre_fullscreen_area.width = self->pre_max_area.width;
2961         }
2962         if (self->max_vert) {
2963             self->pre_fullscreen_area.y = self->pre_max_area.y;
2964             self->pre_fullscreen_area.height = self->pre_max_area.height;
2965         }
2966
2967         /* these will help configure_full figure out where to fullscreen
2968            the window */
2969         x = self->area.x;
2970         y = self->area.y;
2971         w = self->area.width;
2972         h = self->area.height;
2973     } else {
2974         g_assert(self->pre_fullscreen_area.width > 0 &&
2975                  self->pre_fullscreen_area.height > 0);
2976
2977         x = self->pre_fullscreen_area.x;
2978         y = self->pre_fullscreen_area.y;
2979         w = self->pre_fullscreen_area.width;
2980         h = self->pre_fullscreen_area.height;
2981         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
2982     }
2983
2984     client_setup_decor_and_functions(self, FALSE);
2985     client_move_resize(self, x, y, w, h);
2986
2987     /* and adjust our layer/stacking. do this after resizing the window,
2988        and applying decorations, because windows which fill the screen are
2989        considered "fullscreen" and it affects their layer */
2990     client_calc_layer(self);
2991
2992     if (fs) {
2993         /* try focus us when we go into fullscreen mode */
2994         client_focus(self);
2995     }
2996 }
2997
2998 static void client_iconify_recursive(ObClient *self,
2999                                      gboolean iconic, gboolean curdesk,
3000                                      gboolean hide_animation)
3001 {
3002     GSList *it;
3003     gboolean changed = FALSE;
3004
3005
3006     if (self->iconic != iconic) {
3007         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3008                  self->window);
3009
3010         if (iconic) {
3011             /* don't let non-normal windows iconify along with their parents
3012                or whatever */
3013             if (client_normal(self)) {
3014                 self->iconic = iconic;
3015
3016                 /* update the focus lists.. iconic windows go to the bottom of
3017                    the list */
3018                 focus_order_to_bottom(self);
3019
3020                 changed = TRUE;
3021             }
3022         } else {
3023             self->iconic = iconic;
3024
3025             if (curdesk && self->desktop != screen_desktop &&
3026                 self->desktop != DESKTOP_ALL)
3027                 client_set_desktop(self, screen_desktop, FALSE);
3028
3029             /* this puts it after the current focused window */
3030             focus_order_remove(self);
3031             focus_order_add_new(self);
3032
3033             changed = TRUE;
3034         }
3035     }
3036
3037     if (changed) {
3038         client_change_state(self);
3039         if (config_animate_iconify && !hide_animation)
3040             frame_begin_iconify_animation(self->frame, iconic);
3041         /* do this after starting the animation so it doesn't flash */
3042         client_showhide(self);
3043     }
3044
3045     /* iconify all direct transients, and deiconify all transients
3046        (non-direct too) */
3047     for (it = self->transients; it; it = g_slist_next(it))
3048         if (it->data != self)
3049             if (client_is_direct_child(self, it->data) || !iconic)
3050                 client_iconify_recursive(it->data, iconic, curdesk,
3051                                          hide_animation);
3052 }
3053
3054 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3055                     gboolean hide_animation)
3056 {
3057     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3058         /* move up the transient chain as far as possible first */
3059         self = client_search_top_normal_parent(self);
3060         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3061     }
3062 }
3063
3064 void client_maximize(ObClient *self, gboolean max, gint dir)
3065 {
3066     gint x, y, w, h;
3067
3068     g_assert(dir == 0 || dir == 1 || dir == 2);
3069     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3070
3071     /* check if already done */
3072     if (max) {
3073         if (dir == 0 && self->max_horz && self->max_vert) return;
3074         if (dir == 1 && self->max_horz) return;
3075         if (dir == 2 && self->max_vert) return;
3076     } else {
3077         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3078         if (dir == 1 && !self->max_horz) return;
3079         if (dir == 2 && !self->max_vert) return;
3080     }
3081
3082     /* these will help configure_full figure out which screen to fill with
3083        the window */
3084     x = self->area.x;
3085     y = self->area.y;
3086     w = self->area.width;
3087     h = self->area.height;
3088
3089     if (max) {
3090         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3091             RECT_SET(self->pre_max_area,
3092                      self->area.x, self->pre_max_area.y,
3093                      self->area.width, self->pre_max_area.height);
3094         }
3095         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3096             RECT_SET(self->pre_max_area,
3097                      self->pre_max_area.x, self->area.y,
3098                      self->pre_max_area.width, self->area.height);
3099         }
3100     } else {
3101         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3102             g_assert(self->pre_max_area.width > 0);
3103
3104             x = self->pre_max_area.x;
3105             w = self->pre_max_area.width;
3106
3107             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3108                      0, self->pre_max_area.height);
3109         }
3110         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3111             g_assert(self->pre_max_area.height > 0);
3112
3113             y = self->pre_max_area.y;
3114             h = self->pre_max_area.height;
3115
3116             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3117                      self->pre_max_area.width, 0);
3118         }
3119     }
3120
3121     if (dir == 0 || dir == 1) /* horz */
3122         self->max_horz = max;
3123     if (dir == 0 || dir == 2) /* vert */
3124         self->max_vert = max;
3125
3126     client_change_state(self); /* change the state hints on the client */
3127
3128     client_setup_decor_and_functions(self, FALSE);
3129     client_move_resize(self, x, y, w, h);
3130 }
3131
3132 void client_shade(ObClient *self, gboolean shade)
3133 {
3134     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3135          shade) ||                         /* can't shade */
3136         self->shaded == shade) return;     /* already done */
3137
3138     self->shaded = shade;
3139     client_change_state(self);
3140     client_change_wm_state(self); /* the window is being hidden/shown */
3141     /* resize the frame to just the titlebar */
3142     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3143 }
3144
3145 void client_close(ObClient *self)
3146 {
3147     XEvent ce;
3148
3149     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3150
3151     /* in the case that the client provides no means to requesting that it
3152        close, we just kill it */
3153     if (!self->delete_window)
3154         client_kill(self);
3155
3156     /*
3157       XXX: itd be cool to do timeouts and shit here for killing the client's
3158       process off
3159       like... if the window is around after 5 seconds, then the close button
3160       turns a nice red, and if this function is called again, the client is
3161       explicitly killed.
3162     */
3163
3164     ce.xclient.type = ClientMessage;
3165     ce.xclient.message_type =  prop_atoms.wm_protocols;
3166     ce.xclient.display = ob_display;
3167     ce.xclient.window = self->window;
3168     ce.xclient.format = 32;
3169     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3170     ce.xclient.data.l[1] = event_curtime;
3171     ce.xclient.data.l[2] = 0l;
3172     ce.xclient.data.l[3] = 0l;
3173     ce.xclient.data.l[4] = 0l;
3174     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3175 }
3176
3177 void client_kill(ObClient *self)
3178 {
3179     XKillClient(ob_display, self->window);
3180 }
3181
3182 void client_hilite(ObClient *self, gboolean hilite)
3183 {
3184     if (self->demands_attention == hilite)
3185         return; /* no change */
3186
3187     /* don't allow focused windows to hilite */
3188     self->demands_attention = hilite && !client_focused(self);
3189     if (self->frame != NULL) { /* if we're mapping, just set the state */
3190         if (self->demands_attention)
3191             frame_flash_start(self->frame);
3192         else
3193             frame_flash_stop(self->frame);
3194         client_change_state(self);
3195     }
3196 }
3197
3198 void client_set_desktop_recursive(ObClient *self,
3199                                   guint target,
3200                                   gboolean donthide)
3201 {
3202     guint old;
3203     GSList *it;
3204
3205     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3206
3207         ob_debug("Setting desktop %u\n", target+1);
3208
3209         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3210
3211         old = self->desktop;
3212         self->desktop = target;
3213         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3214         /* the frame can display the current desktop state */
3215         frame_adjust_state(self->frame);
3216         /* 'move' the window to the new desktop */
3217         if (!donthide)
3218             client_showhide(self);
3219         /* raise if it was not already on the desktop */
3220         if (old != DESKTOP_ALL)
3221             stacking_raise(CLIENT_AS_WINDOW(self));
3222         if (STRUT_EXISTS(self->strut))
3223             screen_update_areas();
3224     }
3225
3226     /* move all transients */
3227     for (it = self->transients; it; it = g_slist_next(it))
3228         if (it->data != self)
3229             if (client_is_direct_child(self, it->data))
3230                 client_set_desktop_recursive(it->data, target, donthide);
3231 }
3232
3233 void client_set_desktop(ObClient *self, guint target,
3234                         gboolean donthide)
3235 {
3236     self = client_search_top_normal_parent(self);
3237     client_set_desktop_recursive(self, target, donthide);
3238 }
3239
3240 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3241 {
3242     while (child != parent &&
3243            child->transient_for && child->transient_for != OB_TRAN_GROUP)
3244         child = child->transient_for;
3245     return child == parent;
3246 }
3247
3248 ObClient *client_search_modal_child(ObClient *self)
3249 {
3250     GSList *it;
3251     ObClient *ret;
3252
3253     for (it = self->transients; it; it = g_slist_next(it)) {
3254         ObClient *c = it->data;
3255         if ((ret = client_search_modal_child(c))) return ret;
3256         if (c->modal) return c;
3257     }
3258     return NULL;
3259 }
3260
3261 gboolean client_validate(ObClient *self)
3262 {
3263     XEvent e;
3264
3265     XSync(ob_display, FALSE); /* get all events on the server */
3266
3267     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3268         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3269         XPutBackEvent(ob_display, &e);
3270         return FALSE;
3271     }
3272
3273     return TRUE;
3274 }
3275
3276 void client_set_wm_state(ObClient *self, glong state)
3277 {
3278     if (state == self->wmstate) return; /* no change */
3279
3280     switch (state) {
3281     case IconicState:
3282         client_iconify(self, TRUE, TRUE, FALSE);
3283         break;
3284     case NormalState:
3285         client_iconify(self, FALSE, TRUE, FALSE);
3286         break;
3287     }
3288 }
3289
3290 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3291 {
3292     gboolean shaded = self->shaded;
3293     gboolean fullscreen = self->fullscreen;
3294     gboolean undecorated = self->undecorated;
3295     gboolean max_horz = self->max_horz;
3296     gboolean max_vert = self->max_vert;
3297     gboolean modal = self->modal;
3298     gboolean iconic = self->iconic;
3299     gboolean demands_attention = self->demands_attention;
3300     gboolean above = self->above;
3301     gboolean below = self->below;
3302     gint i;
3303
3304     if (!(action == prop_atoms.net_wm_state_add ||
3305           action == prop_atoms.net_wm_state_remove ||
3306           action == prop_atoms.net_wm_state_toggle))
3307         /* an invalid action was passed to the client message, ignore it */
3308         return;
3309
3310     for (i = 0; i < 2; ++i) {
3311         Atom state = i == 0 ? data1 : data2;
3312
3313         if (!state) continue;
3314
3315         /* if toggling, then pick whether we're adding or removing */
3316         if (action == prop_atoms.net_wm_state_toggle) {
3317             if (state == prop_atoms.net_wm_state_modal)
3318                 action = modal ? prop_atoms.net_wm_state_remove :
3319                     prop_atoms.net_wm_state_add;
3320             else if (state == prop_atoms.net_wm_state_maximized_vert)
3321                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3322                     prop_atoms.net_wm_state_add;
3323             else if (state == prop_atoms.net_wm_state_maximized_horz)
3324                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3325                     prop_atoms.net_wm_state_add;
3326             else if (state == prop_atoms.net_wm_state_shaded)
3327                 action = shaded ? prop_atoms.net_wm_state_remove :
3328                     prop_atoms.net_wm_state_add;
3329             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3330                 action = self->skip_taskbar ?
3331                     prop_atoms.net_wm_state_remove :
3332                     prop_atoms.net_wm_state_add;
3333             else if (state == prop_atoms.net_wm_state_skip_pager)
3334                 action = self->skip_pager ?
3335                     prop_atoms.net_wm_state_remove :
3336                     prop_atoms.net_wm_state_add;
3337             else if (state == prop_atoms.net_wm_state_hidden)
3338                 action = self->iconic ?
3339                     prop_atoms.net_wm_state_remove :
3340                     prop_atoms.net_wm_state_add;
3341             else if (state == prop_atoms.net_wm_state_fullscreen)
3342                 action = fullscreen ?
3343                     prop_atoms.net_wm_state_remove :
3344                     prop_atoms.net_wm_state_add;
3345             else if (state == prop_atoms.net_wm_state_above)
3346                 action = self->above ? prop_atoms.net_wm_state_remove :
3347                     prop_atoms.net_wm_state_add;
3348             else if (state == prop_atoms.net_wm_state_below)
3349                 action = self->below ? prop_atoms.net_wm_state_remove :
3350                     prop_atoms.net_wm_state_add;
3351             else if (state == prop_atoms.net_wm_state_demands_attention)
3352                 action = self->demands_attention ?
3353                     prop_atoms.net_wm_state_remove :
3354                     prop_atoms.net_wm_state_add;
3355             else if (state == prop_atoms.ob_wm_state_undecorated)
3356                 action = undecorated ? prop_atoms.net_wm_state_remove :
3357                     prop_atoms.net_wm_state_add;
3358         }
3359
3360         if (action == prop_atoms.net_wm_state_add) {
3361             if (state == prop_atoms.net_wm_state_modal) {
3362                 modal = TRUE;
3363             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3364                 max_vert = TRUE;
3365             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3366                 max_horz = TRUE;
3367             } else if (state == prop_atoms.net_wm_state_shaded) {
3368                 shaded = TRUE;
3369             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3370                 self->skip_taskbar = TRUE;
3371             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3372                 self->skip_pager = TRUE;
3373             } else if (state == prop_atoms.net_wm_state_hidden) {
3374                 iconic = TRUE;
3375             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3376                 fullscreen = TRUE;
3377             } else if (state == prop_atoms.net_wm_state_above) {
3378                 above = TRUE;
3379                 below = FALSE;
3380             } else if (state == prop_atoms.net_wm_state_below) {
3381                 above = FALSE;
3382                 below = TRUE;
3383             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3384                 demands_attention = TRUE;
3385             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3386                 undecorated = TRUE;
3387             }
3388
3389         } else { /* action == prop_atoms.net_wm_state_remove */
3390             if (state == prop_atoms.net_wm_state_modal) {
3391                 modal = FALSE;
3392             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3393                 max_vert = FALSE;
3394             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3395                 max_horz = FALSE;
3396             } else if (state == prop_atoms.net_wm_state_shaded) {
3397                 shaded = FALSE;
3398             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3399                 self->skip_taskbar = FALSE;
3400             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3401                 self->skip_pager = FALSE;
3402             } else if (state == prop_atoms.net_wm_state_hidden) {
3403                 iconic = FALSE;
3404             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3405                 fullscreen = FALSE;
3406             } else if (state == prop_atoms.net_wm_state_above) {
3407                 above = FALSE;
3408             } else if (state == prop_atoms.net_wm_state_below) {
3409                 below = FALSE;
3410             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3411                 demands_attention = FALSE;
3412             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3413                 undecorated = FALSE;
3414             }
3415         }
3416     }
3417
3418     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3419         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3420             /* toggling both */
3421             if (max_horz == max_vert) { /* both going the same way */
3422                 client_maximize(self, max_horz, 0);
3423             } else {
3424                 client_maximize(self, max_horz, 1);
3425                 client_maximize(self, max_vert, 2);
3426             }
3427         } else {
3428             /* toggling one */
3429             if (max_horz != self->max_horz)
3430                 client_maximize(self, max_horz, 1);
3431             else
3432                 client_maximize(self, max_vert, 2);
3433         }
3434     }
3435     /* change fullscreen state before shading, as it will affect if the window
3436        can shade or not */
3437     if (fullscreen != self->fullscreen)
3438         client_fullscreen(self, fullscreen);
3439     if (shaded != self->shaded)
3440         client_shade(self, shaded);
3441     if (undecorated != self->undecorated)
3442         client_set_undecorated(self, undecorated);
3443     if (above != self->above || below != self->below) {
3444         self->above = above;
3445         self->below = below;
3446         client_calc_layer(self);
3447     }
3448
3449     if (modal != self->modal) {
3450         self->modal = modal;
3451         /* when a window changes modality, then its stacking order with its
3452            transients needs to change */
3453         stacking_raise(CLIENT_AS_WINDOW(self));
3454
3455         /* it also may get focused. if something is focused that shouldn't
3456            be focused anymore, then move the focus */
3457         if (focus_client && client_focus_target(focus_client) != focus_client)
3458             client_focus(focus_client);
3459     }
3460
3461     if (iconic != self->iconic)
3462         client_iconify(self, iconic, FALSE, FALSE);
3463
3464     if (demands_attention != self->demands_attention)
3465         client_hilite(self, demands_attention);
3466
3467     client_change_state(self); /* change the hint to reflect these changes */
3468 }
3469
3470 ObClient *client_focus_target(ObClient *self)
3471 {
3472     ObClient *child = NULL;
3473
3474     child = client_search_modal_child(self);
3475     if (child) return child;
3476     return self;
3477 }
3478
3479 gboolean client_can_focus(ObClient *self)
3480 {
3481     /* choose the correct target */
3482     self = client_focus_target(self);
3483
3484     if (!self->frame->visible)
3485         return FALSE;
3486
3487     if (!(self->can_focus || self->focus_notify))
3488         return FALSE;
3489
3490     return TRUE;
3491 }
3492
3493 gboolean client_focus(ObClient *self)
3494 {
3495     /* we might not focus this window, so if we have modal children which would
3496        be focused instead, bring them to this desktop */
3497     client_bring_modal_windows(self);
3498
3499     /* choose the correct target */
3500     self = client_focus_target(self);
3501
3502     if (!client_can_focus(self)) {
3503         if (!self->frame->visible) {
3504             /* update the focus lists */
3505             focus_order_to_top(self);
3506         }
3507         ob_debug_type(OB_DEBUG_FOCUS,
3508                       "Client %s can't be focused\n", self->title);
3509         return FALSE;
3510     }
3511
3512     ob_debug_type(OB_DEBUG_FOCUS,
3513                   "Focusing client \"%s\" (0x%x) at time %u\n",
3514                   self->title, self->window, event_curtime);
3515
3516     /* if there is a grab going on, then we need to cancel it. if we move
3517        focus during the grab, applications will get NotifyWhileGrabbed events
3518        and ignore them !
3519
3520        actions should not rely on being able to move focus during an
3521        interactive grab.
3522     */
3523     event_cancel_all_key_grabs();
3524
3525     xerror_set_ignore(TRUE);
3526     xerror_occured = FALSE;
3527
3528     if (self->can_focus) {
3529         /* This can cause a BadMatch error with CurrentTime, or if an app
3530            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3531         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3532                        event_curtime);
3533     }
3534
3535     if (self->focus_notify) {
3536         XEvent ce;
3537         ce.xclient.type = ClientMessage;
3538         ce.xclient.message_type = prop_atoms.wm_protocols;
3539         ce.xclient.display = ob_display;
3540         ce.xclient.window = self->window;
3541         ce.xclient.format = 32;
3542         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3543         ce.xclient.data.l[1] = event_curtime;
3544         ce.xclient.data.l[2] = 0l;
3545         ce.xclient.data.l[3] = 0l;
3546         ce.xclient.data.l[4] = 0l;
3547         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3548     }
3549
3550     xerror_set_ignore(FALSE);
3551
3552     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3553     return !xerror_occured;
3554 }
3555
3556 /*! Present the client to the user.
3557   @param raise If the client should be raised or not. You should only set
3558                raise to false if you don't care if the window is completely
3559                hidden.
3560 */
3561 static void client_present(ObClient *self, gboolean here, gboolean raise)
3562 {
3563     /* if using focus_delay, stop the timer now so that focus doesn't
3564        go moving on us */
3565     event_halt_focus_delay();
3566
3567     if (client_normal(self) && screen_showing_desktop)
3568         screen_show_desktop(FALSE, self);
3569     if (self->iconic)
3570         client_iconify(self, FALSE, here, FALSE);
3571     if (self->desktop != DESKTOP_ALL &&
3572         self->desktop != screen_desktop)
3573     {
3574         if (here)
3575             client_set_desktop(self, screen_desktop, FALSE);
3576         else
3577             screen_set_desktop(self->desktop, FALSE);
3578     } else if (!self->frame->visible)
3579         /* if its not visible for other reasons, then don't mess
3580            with it */
3581         return;
3582     if (self->shaded)
3583         client_shade(self, FALSE);
3584     if (raise)
3585         stacking_raise(CLIENT_AS_WINDOW(self));
3586
3587     client_focus(self);
3588 }
3589
3590 void client_activate(ObClient *self, gboolean here, gboolean user)
3591 {
3592     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3593     gboolean allow = FALSE;
3594
3595     /* if the request came from the user, or if nothing is focused, then grant
3596        the request.
3597        if the currently focused app doesn't set a user_time, then it can't
3598        benefit from any focus stealing prevention.
3599     */
3600     if (user || !focus_client || !last_time)
3601         allow = TRUE;
3602     /* otherwise, if they didn't give a time stamp or if it is too old, they
3603        don't get focus */
3604     else
3605         allow = event_curtime && event_time_after(event_curtime, last_time);
3606
3607     ob_debug_type(OB_DEBUG_FOCUS,
3608                   "Want to activate window 0x%x with time %u (last time %u), "
3609                   "source=%s allowing? %d\n",
3610                   self->window, event_curtime, last_time,
3611                   (user ? "user" : "application"), allow);
3612
3613     if (allow)
3614         client_present(self, here, TRUE);
3615     else
3616         /* don't focus it but tell the user it wants attention */
3617         client_hilite(self, TRUE);
3618 }
3619
3620 static void client_bring_windows_recursive(ObClient *self,
3621                                            guint desktop,
3622                                            gboolean helpers,
3623                                            gboolean modals,
3624                                            gboolean iconic)
3625 {
3626     GSList *it;
3627
3628     for (it = self->transients; it; it = g_slist_next(it))
3629         client_bring_windows_recursive(it->data, desktop,
3630                                        helpers, modals, iconic);
3631
3632     if (((helpers && client_helper(self)) ||
3633          (modals && self->modal)) &&
3634         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3635          (iconic && self->iconic)))
3636     {
3637         if (iconic && self->iconic)
3638             client_iconify(self, FALSE, TRUE, FALSE);
3639         else
3640             client_set_desktop(self, desktop, FALSE);
3641     }
3642 }
3643
3644 void client_bring_helper_windows(ObClient *self)
3645 {
3646     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3647 }
3648
3649 void client_bring_modal_windows(ObClient *self)
3650 {
3651     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3652 }
3653
3654 gboolean client_focused(ObClient *self)
3655 {
3656     return self == focus_client;
3657 }
3658
3659 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3660 {
3661     guint i;
3662     gulong min_diff, min_i;
3663
3664     if (!self->nicons) {
3665         ObClientIcon *parent = NULL;
3666
3667         if (self->transient_for) {
3668             if (self->transient_for != OB_TRAN_GROUP)
3669                 parent = client_icon_recursive(self->transient_for, w, h);
3670             else {
3671                 GSList *it;
3672                 for (it = self->group->members; it; it = g_slist_next(it)) {
3673                     ObClient *c = it->data;
3674                     if (c != self && !c->transient_for) {
3675                         if ((parent = client_icon_recursive(c, w, h)))
3676                             break;
3677                     }
3678                 }
3679             }
3680         }
3681
3682         return parent;
3683     }
3684
3685     /* some kind of crappy approximation to find the icon closest in size to
3686        what we requested, but icons are generally all the same ratio as
3687        eachother so it's good enough. */
3688
3689     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3690     min_i = 0;
3691
3692     for (i = 1; i < self->nicons; ++i) {
3693         gulong diff;
3694
3695         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3696         if (diff < min_diff) {
3697             min_diff = diff;
3698             min_i = i;
3699         }
3700     }
3701     return &self->icons[min_i];
3702 }
3703
3704 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3705 {
3706     ObClientIcon *ret;
3707     static ObClientIcon deficon;
3708
3709     if (!(ret = client_icon_recursive(self, w, h))) {
3710         deficon.width = deficon.height = 48;
3711         deficon.data = ob_rr_theme->def_win_icon;
3712         ret = &deficon;
3713     }
3714     return ret;
3715 }
3716
3717 void client_set_layer(ObClient *self, gint layer)
3718 {
3719     if (layer < 0) {
3720         self->below = TRUE;
3721         self->above = FALSE;
3722     } else if (layer == 0) {
3723         self->below = self->above = FALSE;
3724     } else {
3725         self->below = FALSE;
3726         self->above = TRUE;
3727     }
3728     client_calc_layer(self);
3729     client_change_state(self); /* reflect this in the state hints */
3730 }
3731
3732 void client_set_undecorated(ObClient *self, gboolean undecorated)
3733 {
3734     if (self->undecorated != undecorated &&
3735         /* don't let it undecorate if the function is missing, but let
3736            it redecorate */
3737         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3738     {
3739         self->undecorated = undecorated;
3740         client_setup_decor_and_functions(self, TRUE);
3741         client_change_state(self); /* reflect this in the state hints */
3742     }
3743 }
3744
3745 guint client_monitor(ObClient *self)
3746 {
3747     return screen_find_monitor(&self->frame->area);
3748 }
3749
3750 ObClient *client_search_top_normal_parent(ObClient *self)
3751 {
3752     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3753            client_normal(self->transient_for))
3754         self = self->transient_for;
3755     return self;
3756 }
3757
3758 static GSList *client_search_all_top_parents_internal(ObClient *self,
3759                                                       gboolean bylayer,
3760                                                       ObStackingLayer layer)
3761 {
3762     GSList *ret = NULL;
3763
3764     /* move up the direct transient chain as far as possible */
3765     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3766            (!bylayer || self->transient_for->layer == layer) &&
3767            client_normal(self->transient_for))
3768         self = self->transient_for;
3769
3770     if (!self->transient_for)
3771         ret = g_slist_prepend(ret, self);
3772     else {
3773             GSList *it;
3774
3775             g_assert(self->group);
3776
3777             for (it = self->group->members; it; it = g_slist_next(it)) {
3778                 ObClient *c = it->data;
3779
3780                 if (!c->transient_for && client_normal(c) &&
3781                     (!bylayer || c->layer == layer))
3782                 {
3783                     ret = g_slist_prepend(ret, c);
3784                 }
3785             }
3786
3787             if (ret == NULL) /* no group parents */
3788                 ret = g_slist_prepend(ret, self);
3789     }
3790
3791     return ret;
3792 }
3793
3794 GSList *client_search_all_top_parents(ObClient *self)
3795 {
3796     return client_search_all_top_parents_internal(self, FALSE, 0);
3797 }
3798
3799 GSList *client_search_all_top_parents_layer(ObClient *self)
3800 {
3801     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3802 }
3803
3804 ObClient *client_search_focus_parent(ObClient *self)
3805 {
3806     if (self->transient_for) {
3807         if (self->transient_for != OB_TRAN_GROUP) {
3808             if (client_focused(self->transient_for))
3809                 return self->transient_for;
3810         } else {
3811             GSList *it;
3812
3813             for (it = self->group->members; it; it = g_slist_next(it)) {
3814                 ObClient *c = it->data;
3815
3816                 /* checking transient_for prevents infinate loops! */
3817                 if (c != self && !c->transient_for)
3818                     if (client_focused(c))
3819                         return c;
3820             }
3821         }
3822     }
3823
3824     return NULL;
3825 }
3826
3827 ObClient *client_search_parent(ObClient *self, ObClient *search)
3828 {
3829     if (self->transient_for) {
3830         if (self->transient_for != OB_TRAN_GROUP) {
3831             if (self->transient_for == search)
3832                 return search;
3833         } else {
3834             GSList *it;
3835
3836             for (it = self->group->members; it; it = g_slist_next(it)) {
3837                 ObClient *c = it->data;
3838
3839                 /* checking transient_for prevents infinate loops! */
3840                 if (c != self && !c->transient_for)
3841                     if (c == search)
3842                         return search;
3843             }
3844         }
3845     }
3846
3847     return NULL;
3848 }
3849
3850 ObClient *client_search_transient(ObClient *self, ObClient *search)
3851 {
3852     GSList *sit;
3853
3854     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3855         if (sit->data == search)
3856             return search;
3857         if (client_search_transient(sit->data, search))
3858             return search;
3859     }
3860     return NULL;
3861 }
3862
3863 #define WANT_EDGE(cur, c) \
3864             if(cur == c)                                                      \
3865                 continue;                                                     \
3866             if(!client_normal(cur))                                           \
3867                 continue;                                                     \
3868             if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL) \
3869                 continue;                                                     \
3870             if(cur->iconic)                                                   \
3871                 continue;
3872
3873 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3874             if ((his_edge_start >= my_edge_start && \
3875                  his_edge_start <= my_edge_end) ||  \
3876                 (my_edge_start >= his_edge_start && \
3877                  my_edge_start <= his_edge_end))    \
3878                 dest = his_offset;
3879
3880 /* finds the nearest edge in the given direction from the current client
3881  * note to self: the edge is the -frame- edge (the actual one), not the
3882  * client edge.
3883  */
3884 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3885 {
3886     gint dest, monitor_dest;
3887     gint my_edge_start, my_edge_end, my_offset;
3888     GList *it;
3889     Rect *a, *monitor;
3890
3891     if(!client_list)
3892         return -1;
3893
3894     a = screen_area(c->desktop);
3895     monitor = screen_area_monitor(c->desktop, client_monitor(c));
3896
3897     switch(dir) {
3898     case OB_DIRECTION_NORTH:
3899         my_edge_start = c->frame->area.x;
3900         my_edge_end = c->frame->area.x + c->frame->area.width;
3901         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3902
3903         /* default: top of screen */
3904         dest = a->y + (hang ? c->frame->area.height : 0);
3905         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3906         /* if the monitor edge comes before the screen edge, */
3907         /* use that as the destination instead. (For xinerama) */
3908         if (monitor_dest != dest && my_offset > monitor_dest)
3909             dest = monitor_dest;
3910
3911         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3912             gint his_edge_start, his_edge_end, his_offset;
3913             ObClient *cur = it->data;
3914
3915             WANT_EDGE(cur, c)
3916
3917             his_edge_start = cur->frame->area.x;
3918             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3919             his_offset = cur->frame->area.y +
3920                          (hang ? 0 : cur->frame->area.height);
3921
3922             if(his_offset + 1 > my_offset)
3923                 continue;
3924
3925             if(his_offset < dest)
3926                 continue;
3927
3928             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3929         }
3930         break;
3931     case OB_DIRECTION_SOUTH:
3932         my_edge_start = c->frame->area.x;
3933         my_edge_end = c->frame->area.x + c->frame->area.width;
3934         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3935
3936         /* default: bottom of screen */
3937         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3938         monitor_dest = monitor->y + monitor->height -
3939                        (hang ? c->frame->area.height : 0);
3940         /* if the monitor edge comes before the screen edge, */
3941         /* use that as the destination instead. (For xinerama) */
3942         if (monitor_dest != dest && my_offset < monitor_dest)
3943             dest = monitor_dest;
3944
3945         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3946             gint his_edge_start, his_edge_end, his_offset;
3947             ObClient *cur = it->data;
3948
3949             WANT_EDGE(cur, c)
3950
3951             his_edge_start = cur->frame->area.x;
3952             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3953             his_offset = cur->frame->area.y +
3954                          (hang ? cur->frame->area.height : 0);
3955
3956
3957             if(his_offset - 1 < my_offset)
3958                 continue;
3959
3960             if(his_offset > dest)
3961                 continue;
3962
3963             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3964         }
3965         break;
3966     case OB_DIRECTION_WEST:
3967         my_edge_start = c->frame->area.y;
3968         my_edge_end = c->frame->area.y + c->frame->area.height;
3969         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3970
3971         /* default: leftmost egde of screen */
3972         dest = a->x + (hang ? c->frame->area.width : 0);
3973         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3974         /* if the monitor edge comes before the screen edge, */
3975         /* use that as the destination instead. (For xinerama) */
3976         if (monitor_dest != dest && my_offset > monitor_dest)
3977             dest = monitor_dest;
3978
3979         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3980             gint his_edge_start, his_edge_end, his_offset;
3981             ObClient *cur = it->data;
3982
3983             WANT_EDGE(cur, c)
3984
3985             his_edge_start = cur->frame->area.y;
3986             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3987             his_offset = cur->frame->area.x +
3988                          (hang ? 0 : cur->frame->area.width);
3989
3990             if(his_offset + 1 > my_offset)
3991                 continue;
3992
3993             if(his_offset < dest)
3994                 continue;
3995
3996             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3997         }
3998        break;
3999     case OB_DIRECTION_EAST:
4000         my_edge_start = c->frame->area.y;
4001         my_edge_end = c->frame->area.y + c->frame->area.height;
4002         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
4003
4004         /* default: rightmost edge of screen */
4005         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
4006         monitor_dest = monitor->x + monitor->width -
4007                        (hang ? c->frame->area.width : 0);
4008         /* if the monitor edge comes before the screen edge, */
4009         /* use that as the destination instead. (For xinerama) */
4010         if (monitor_dest != dest && my_offset < monitor_dest)
4011             dest = monitor_dest;
4012
4013         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
4014             gint his_edge_start, his_edge_end, his_offset;
4015             ObClient *cur = it->data;
4016
4017             WANT_EDGE(cur, c)
4018
4019             his_edge_start = cur->frame->area.y;
4020             his_edge_end = cur->frame->area.y + cur->frame->area.height;
4021             his_offset = cur->frame->area.x +
4022                          (hang ? cur->frame->area.width : 0);
4023
4024             if(his_offset - 1 < my_offset)
4025                 continue;
4026
4027             if(his_offset > dest)
4028                 continue;
4029
4030             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4031         }
4032         break;
4033     case OB_DIRECTION_NORTHEAST:
4034     case OB_DIRECTION_SOUTHEAST:
4035     case OB_DIRECTION_NORTHWEST:
4036     case OB_DIRECTION_SOUTHWEST:
4037         /* not implemented */
4038     default:
4039         g_assert_not_reached();
4040         dest = 0; /* suppress warning */
4041     }
4042     return dest;
4043 }
4044
4045 ObClient* client_under_pointer()
4046 {
4047     gint x, y;
4048     GList *it;
4049     ObClient *ret = NULL;
4050
4051     if (screen_pointer_pos(&x, &y)) {
4052         for (it = stacking_list; it; it = g_list_next(it)) {
4053             if (WINDOW_IS_CLIENT(it->data)) {
4054                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4055                 if (c->frame->visible &&
4056                     /* ignore all animating windows */
4057                     !frame_iconify_animating(c->frame) &&
4058                     RECT_CONTAINS(c->frame->area, x, y))
4059                 {
4060                     ret = c;
4061                     break;
4062                 }
4063             }
4064         }
4065     }
4066     return ret;
4067 }
4068
4069 gboolean client_has_group_siblings(ObClient *self)
4070 {
4071     return self->group && self->group->members->next;
4072 }