openbox/client.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    client.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "client.h"
  21 #include "debug.h"
  22 #include "startupnotify.h"
  23 #include "dock.h"
  24 #include "xerror.h"
  25 #include "screen.h"
  26 #include "moveresize.h"
  27 #include "place.h"
  28 #include "prop.h"
  29 #include "extensions.h"
  30 #include "frame.h"
  31 #include "session.h"
  32 #include "event.h"
  33 #include "grab.h"
  34 #include "focus.h"
  35 #include "propwin.h"
  36 #include "stacking.h"
  37 #include "openbox.h"
  38 #include "group.h"
  39 #include "config.h"
  40 #include "menuframe.h"
  41 #include "keyboard.h"
  42 #include "mouse.h"
  43 #include "render/render.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 #endif
  48
  49 #include <glib.h>
  50 #include <X11/Xutil.h>
  51
  52 /*! The event mask to grab on client windows */
  53 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  54                           ColormapChangeMask)
  55
  56 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  57                                 ButtonMotionMask)
  58
  59 typedef struct
  60 {
  61     ObClientCallback func;
  62     gpointer data;
  63 } ClientCallback;
  64
  65 GList            *client_list          = NULL;
  66
  67 static GSList *client_destroy_notifies = NULL;
  68
  69 static void client_get_all(ObClient *self, gboolean real);
  70 static void client_get_startup_id(ObClient *self);
  71 static void client_get_session_ids(ObClient *self);
  72 static void client_get_area(ObClient *self);
  73 static void client_get_desktop(ObClient *self);
  74 static void client_get_state(ObClient *self);
  75 static void client_get_shaped(ObClient *self);
  76 static void client_get_mwm_hints(ObClient *self);
  77 static void client_get_colormap(ObClient *self);
  78 static void client_change_allowed_actions(ObClient *self);
  79 static void client_change_state(ObClient *self);
  80 static void client_change_wm_state(ObClient *self);
  81 static void client_apply_startup_state(ObClient *self);
  82 static void client_restore_session_state(ObClient *self);
  83 static gboolean client_restore_session_stacking(ObClient *self);
  84 static ObAppSettings *client_get_settings_state(ObClient *self);
  85 static void client_update_transient_tree(ObClient *self,
  86                                          ObGroup *oldgroup, ObGroup *newgroup,
  87                                          ObClient* oldparent,
  88                                          ObClient *newparent);
  89 static void client_present(ObClient *self, gboolean here, gboolean raise);
  90 static GSList *client_search_all_top_parents_internal(ObClient *self,
  91                                                       gboolean bylayer,
  92                                                       ObStackingLayer layer);
  93 static void client_call_notifies(ObClient *self, GSList *list);
  94
  95 void client_startup(gboolean reconfig)
  96 {
  97     if (reconfig) return;
  98
  99     client_set_list();
 100 }
 101
 102 void client_shutdown(gboolean reconfig)
 103 {
 104     if (reconfig) return;
 105 }
 106
 107 static void client_call_notifies(ObClient *self, GSList *list)
 108 {
 109     GSList *it;
 110
 111     for (it = list; it; it = g_slist_next(it)) {
 112         ClientCallback *d = it->data;
 113         d->func(self, d->data);
 114     }
 115 }
 116
 117 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 118 {
 119     ClientCallback *d = g_new(ClientCallback, 1);
 120     d->func = func;
 121     d->data = data;
 122     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 123 }
 124
 125 void client_remove_destroy_notify(ObClientCallback func)
 126 {
 127     GSList *it;
 128
 129     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 130         ClientCallback *d = it->data;
 131         if (d->func == func) {
 132             g_free(d);
 133             client_destroy_notifies =
 134                 g_slist_delete_link(client_destroy_notifies, it);
 135             break;
 136         }
 137     }
 138 }
 139
 140 void client_set_list()
 141 {
 142     Window *windows, *win_it;
 143     GList *it;
 144     guint size = g_list_length(client_list);
 145
 146     /* create an array of the window ids */
 147     if (size > 0) {
 148         windows = g_new(Window, size);
 149         win_it = windows;
 150         for (it = client_list; it; it = g_list_next(it), ++win_it)
 151             *win_it = ((ObClient*)it->data)->window;
 152     } else
 153         windows = NULL;
 154
 155     PROP_SETA32(RootWindow(ob_display, ob_screen),
 156                 net_client_list, window, (gulong*)windows, size);
 157
 158     if (windows)
 159         g_free(windows);
 160
 161     stacking_set_list();
 162 }
 163
 164 /*
 165   void client_foreach_transient(ObClient *self, ObClientForeachFunc func, gpointer data)
 166   {
 167   GSList *it;
 168
 169   for (it = self->transients; it; it = g_slist_next(it)) {
 170   if (!func(it->data, data)) return;
 171   client_foreach_transient(it->data, func, data);
 172   }
 173   }
 174
 175   void client_foreach_ancestor(ObClient *self, ObClientForeachFunc func, gpointer data)
 176   {
 177   if (self->transient_for) {
 178   if (self->transient_for != OB_TRAN_GROUP) {
 179   if (!func(self->transient_for, data)) return;
 180   client_foreach_ancestor(self->transient_for, func, data);
 181   } else {
 182   GSList *it;
 183
 184   for (it = self->group->members; it; it = g_slist_next(it))
 185   if (it->data != self &&
 186   !((ObClient*)it->data)->transient_for) {
 187   if (!func(it->data, data)) return;
 188   client_foreach_ancestor(it->data, func, data);
 189   }
 190   }
 191   }
 192   }
 193 */
 194
 195 void client_manage_all()
 196 {
 197     guint i, j, nchild;
 198     Window w, *children;
 199     XWMHints *wmhints;
 200     XWindowAttributes attrib;
 201
 202     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 203                &w, &w, &children, &nchild);
 204
 205     /* remove all icon windows from the list */
 206     for (i = 0; i < nchild; i++) {
 207         if (children[i] == None) continue;
 208         wmhints = XGetWMHints(ob_display, children[i]);
 209         if (wmhints) {
 210             if ((wmhints->flags & IconWindowHint) &&
 211                 (wmhints->icon_window != children[i]))
 212                 for (j = 0; j < nchild; j++)
 213                     if (children[j] == wmhints->icon_window) {
 214                         children[j] = None;
 215                         break;
 216                     }
 217             XFree(wmhints);
 218         }
 219     }
 220
 221     for (i = 0; i < nchild; ++i) {
 222         if (children[i] == None)
 223             continue;
 224         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 225             if (attrib.override_redirect) continue;
 226
 227             if (attrib.map_state != IsUnmapped)
 228                 client_manage(children[i]);
 229         }
 230     }
 231     XFree(children);
 232 }
 233
 234 void client_manage(Window window)
 235 {
 236     ObClient *self;
 237     XEvent e;
 238     XWindowAttributes attrib;
 239     XSetWindowAttributes attrib_set;
 240     XWMHints *wmhint;
 241     gboolean activate = FALSE;
 242     ObAppSettings *settings;
 243     gint placex, placey;
 244
 245     grab_server(TRUE);
 246
 247     /* check if it has already been unmapped by the time we started
 248        mapping. the grab does a sync so we don't have to here */
 249     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 250         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 251     {
 252         XPutBackEvent(ob_display, &e);
 253
 254         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 255         grab_server(FALSE);
 256         return; /* don't manage it */
 257     }
 258
 259     /* make sure it isn't an override-redirect window */
 260     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 261         attrib.override_redirect)
 262     {
 263         grab_server(FALSE);
 264         return; /* don't manage it */
 265     }
 266
 267     /* is the window a docking app */
 268     if ((wmhint = XGetWMHints(ob_display, window))) {
 269         if ((wmhint->flags & StateHint) &&
 270             wmhint->initial_state == WithdrawnState)
 271         {
 272             dock_add(window, wmhint);
 273             grab_server(FALSE);
 274             XFree(wmhint);
 275             return;
 276         }
 277         XFree(wmhint);
 278     }
 279
 280     ob_debug("Managing window: 0x%lx\n", window);
 281
 282     /* choose the events we want to receive on the CLIENT window */
 283     attrib_set.event_mask = CLIENT_EVENTMASK;
 284     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 285     XChangeWindowAttributes(ob_display, window,
 286                             CWEventMask|CWDontPropagate, &attrib_set);
 287
 288     /* create the ObClient struct, and populate it from the hints on the
 289        window */
 290     self = g_new0(ObClient, 1);
 291     self->obwin.type = Window_Client;
 292     self->window = window;
 293
 294     /* non-zero defaults */
 295     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 296     self->gravity = NorthWestGravity;
 297     self->desktop = screen_num_desktops; /* always an invalid value */
 298     self->user_time = focus_client ? focus_client->user_time : CurrentTime;
 299
 300     /* get all the stuff off the window */
 301     client_get_all(self, TRUE);
 302
 303     /* specify that if we exit, the window should not be destroyed and
 304        should be reparented back to root automatically */
 305     XChangeSaveSet(ob_display, window, SetModeInsert);
 306
 307     /* create the decoration frame for the client window */
 308     self->frame = frame_new(self);
 309
 310     frame_grab_client(self->frame);
 311
 312     /* we've grabbed everything and set everything that we need to at mapping
 313        time now */
 314     grab_server(FALSE);
 315
 316     /* per-app settings override stuff from client_get_all, and return the
 317        settings for other uses too. the returned settings is a shallow copy,
 318        that needs to be freed with g_free(). */
 319     settings = client_get_settings_state(self);
 320     /* the session should get the last say thought */
 321     client_restore_session_state(self);
 322
 323     /* now we have all of the window's information so we can set this up */
 324     client_setup_decor_and_functions(self);
 325
 326     {
 327         Time t = sn_app_started(self->startup_id, self->class);
 328         if (t) self->user_time = t;
 329     }
 330
 331     /* do this after we have a frame.. it uses the frame to help determine the
 332        WM_STATE to apply. */
 333     client_change_state(self);
 334
 335     /* add ourselves to the focus order */
 336     focus_order_add_new(self);
 337
 338     /* do this to add ourselves to the stacking list in a non-intrusive way */
 339     client_calc_layer(self);
 340
 341     /* focus the new window? */
 342     if (ob_state() != OB_STATE_STARTING &&
 343         (!self->session || self->session->focused) &&
 344         !self->iconic &&
 345         /* this means focus=true for window is same as config_focus_new=true */
 346         ((config_focus_new || (settings && settings->focus == 1)) ||
 347          client_search_focus_tree_full(self)) &&
 348         /* this checks for focus=false for the window */
 349         (!settings || settings->focus != 0) &&
 350         /* note the check against Type_Normal/Dialog, not client_normal(self),
 351            which would also include other types. in this case we want more
 352            strict rules for focus */
 353         (self->type == OB_CLIENT_TYPE_NORMAL ||
 354          self->type == OB_CLIENT_TYPE_DIALOG))
 355     {
 356         activate = TRUE;
 357     }
 358
 359     /* adjust the frame to the client's size before showing or placing
 360        the window */
 361     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 362     frame_adjust_client_area(self->frame);
 363
 364     /* where the frame was placed is where the window was originally */
 365     placex = self->area.x;
 366     placey = self->area.y;
 367
 368     /* figure out placement for the window if the window is new */
 369     if (ob_state() == OB_STATE_RUNNING) {
 370         gboolean transient;
 371
 372         ob_debug("Positioned: %s @ %d %d\n",
 373                  (!self->positioned ? "no" :
 374                   (self->positioned == PPosition ? "program specified" :
 375                    (self->positioned == USPosition ? "user specified" :
 376                     (self->positioned == (PPosition | USPosition) ?
 377                      "program + user specified" :
 378                      "BADNESS !?")))), self->area.x, self->area.y);
 379
 380         ob_debug("Sized: %s @ %d %d\n",
 381                  (!self->sized ? "no" :
 382                   (self->sized == PSize ? "program specified" :
 383                    (self->sized == USSize ? "user specified" :
 384                     (self->sized == (PSize | USSize) ?
 385                      "program + user specified" :
 386                      "BADNESS !?")))), self->area.width, self->area.height);
 387
 388         transient = place_client(self, &placex, &placey, settings);
 389
 390         /* if the window isn't user-positioned, then make it fit inside
 391            the visible screen area on its monitor.
 392
 393            the monitor is chosen by place_client! */
 394         if (!(self->sized & USSize)) {
 395             /* make a copy to modify */
 396             Rect a = *screen_area_monitor(self->desktop, client_monitor(self));
 397
 398             /* shrink by the frame's area */
 399             a.width -= self->frame->size.left + self->frame->size.right;
 400             a.height -= self->frame->size.top + self->frame->size.bottom;
 401
 402             /* fit the window inside the area */
 403             if (self->area.width > a.width || self->area.height > a.height) {
 404                 self->area.width = MIN(self->area.width, a.width);
 405                 self->area.height = MIN(self->area.height, a.height);
 406
 407                 ob_debug("setting window size to %dx%d\n",
 408                          self->area.width, self->area.height);
 409
 410                 /* adjust the frame to the client's new size */
 411                 frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 412                 frame_adjust_client_area(self->frame);
 413             }
 414         }
 415
 416         /* make sure the window is visible. */
 417         client_find_onscreen(self, &placex, &placey,
 418                              self->area.width, self->area.height,
 419                              /* non-normal clients has less rules, and
 420                                 windows that are being restored from a
 421                                 session do also. we can assume you want
 422                                 it back where you saved it. Clients saying
 423                                 they placed themselves are subjected to
 424                                 harder rules, ones that are placed by
 425                                 place.c or by the user are allowed partially
 426                                 off-screen and on xinerama divides (ie,
 427                                 it is up to the placement routines to avoid
 428                                 the xinerama divides) */
 429                              transient ||
 430                              (!(self->positioned & USPosition) &&
 431                               client_normal(self) &&
 432                               !self->session));
 433     }
 434
 435     ob_debug("placing window 0x%x at %d, %d with size %d x %d\n",
 436              self->window, placex, placey,
 437              self->area.width, self->area.height);
 438     if (self->session)
 439         ob_debug("  but session requested %d %d instead, overriding\n",
 440                  self->session->x, self->session->y);
 441
 442     /* do this after the window is placed, so the premax/prefullscreen numbers
 443        won't be all wacko!!
 444     */
 445     client_apply_startup_state(self);
 446
 447     /* move the client to its placed position, or it it's already there,
 448        generate a ConfigureNotify telling the client where it is.
 449
 450        do this after adjusting the frame. otherwise it gets all weird and
 451        clients don't work right
 452
 453        also do this after applying the startup state so maximize and fullscreen
 454        will get the right sizes and positions if the client is starting with
 455        those states
 456     */
 457     client_configure(self, placex, placey,
 458                      self->area.width, self->area.height,
 459                      self->border_width,
 460                      FALSE, TRUE);
 461
 462
 463     if (activate) {
 464         guint32 last_time = focus_client ?
 465             focus_client->user_time : CurrentTime;
 466
 467         /* This is focus stealing prevention */
 468         ob_debug_type(OB_DEBUG_FOCUS,
 469                       "Want to focus new window 0x%x with time %u "
 470                       "(last time %u)\n",
 471                       self->window, self->user_time, last_time);
 472
 473         /* if it's on another desktop */
 474         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 475             && /* the timestamp is from before you changed desktops */
 476             self->user_time && screen_desktop_user_time &&
 477             !event_time_after(self->user_time, screen_desktop_user_time))
 478         {
 479             activate = FALSE;
 480             ob_debug_type(OB_DEBUG_FOCUS,
 481                           "Not focusing the window because its on another "
 482                           "desktop\n");
 483         }
 484         /* If something is focused, and it's not our relative... */
 485         else if (focus_client && client_search_focus_tree_full(self) == NULL)
 486         {
 487             /* If time stamp is old, don't steal focus */
 488             if (self->user_time && last_time &&
 489                 !event_time_after(self->user_time, last_time))
 490             {
 491                 activate = FALSE;
 492                 ob_debug_type(OB_DEBUG_FOCUS,
 493                               "Not focusing the window because the time is "
 494                               "too old\n");
 495             }
 496             /* If its a transient (and parents aren't focused) and the time
 497                is ambiguous (either the current focus target doesn't have
 498                a timestamp, or they are the same (we probably inherited it
 499                from them) */
 500             else if (client_has_parent(self) &&
 501                      (!last_time || self->user_time == last_time))
 502             {
 503                 activate = FALSE;
 504                 ob_debug_type(OB_DEBUG_FOCUS,
 505                               "Not focusing the window because it is a "
 506                               "transient, and the time is very ambiguous\n");
 507             }
 508             /* Don't steal focus from globally active clients.
 509                I stole this idea from KWin. It seems nice.
 510              */
 511             else if (!(focus_client->can_focus ||
 512                        focus_client->focus_notify))
 513             {
 514                 activate = FALSE;
 515                 ob_debug_type(OB_DEBUG_FOCUS,
 516                               "Not focusing the window because a globally "
 517                               "active client has focus\n");
 518             }
 519             /* Don't move focus if it's not going to go to this window
 520                anyway */
 521             else if (client_focus_target(self) != self) {
 522                 activate = FALSE;
 523                 ob_debug_type(OB_DEBUG_FOCUS,
 524                               "Not focusing the window because another window "
 525                               "would get the focus anyway\n");
 526             }
 527         }
 528
 529         if (!activate) {
 530             ob_debug_type(OB_DEBUG_FOCUS,
 531                           "Focus stealing prevention activated for %s with "
 532                           "time %u (last time %u)\n",
 533                           self->title, self->user_time, last_time);
 534             /* if the client isn't focused, then hilite it so the user
 535                knows it is there */
 536             client_hilite(self, TRUE);
 537         }
 538     }
 539     else {
 540         /* This may look rather odd. Well it's because new windows are added
 541            to the stacking order non-intrusively. If we're not going to focus
 542            the new window or hilite it, then we raise it to the top. This will
 543            take affect for things that don't get focused like splash screens.
 544            Also if you don't have focus_new enabled, then it's going to get
 545            raised to the top. Legacy begets legacy I guess?
 546         */
 547         if (!client_restore_session_stacking(self))
 548             stacking_raise(CLIENT_AS_WINDOW(self));
 549     }
 550
 551     mouse_grab_for_client(self, TRUE);
 552
 553     /* this has to happen before we try focus the window, but we want it to
 554        happen after the client's stacking has been determined or it looks bad
 555     */
 556     client_show(self);
 557
 558     if (activate) {
 559         gboolean stacked = client_restore_session_stacking(self);
 560         client_present(self, FALSE, !stacked);
 561     }
 562
 563     /* add to client list/map */
 564     client_list = g_list_append(client_list, self);
 565     g_hash_table_insert(window_map, &self->window, self);
 566
 567     /* this has to happen after we're in the client_list */
 568     if (STRUT_EXISTS(self->strut))
 569         screen_update_areas();
 570
 571     /* update the list hints */
 572     client_set_list();
 573
 574     /* free the ObAppSettings shallow copy */
 575     g_free(settings);
 576
 577     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 578              window, self->frame->plate, self->class);
 579
 580     return;
 581 }
 582
 583
 584 ObClient *client_fake_manage(Window window)
 585 {
 586     ObClient *self;
 587     ObAppSettings *settings;
 588
 589     ob_debug("Pretend-managing window: %lx\n", window);
 590
 591     /* do this minimal stuff to figure out the client's decorations */
 592
 593     self = g_new0(ObClient, 1);
 594     self->window = window;
 595
 596     client_get_all(self, FALSE);
 597     /* per-app settings override stuff, and return the settings for other
 598        uses too. this returns a shallow copy that needs to be freed */
 599     settings = client_get_settings_state(self);
 600
 601     client_setup_decor_and_functions(self);
 602
 603     /* create the decoration frame for the client window and adjust its size */
 604     self->frame = frame_new(self);
 605     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 606
 607     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 608              self->frame->size.left, self->frame->size.right,
 609              self->frame->size.top, self->frame->size.bottom);
 610
 611     /* free the ObAppSettings shallow copy */
 612     g_free(settings);
 613
 614     return self;
 615 }
 616
 617 void client_unmanage_all()
 618 {
 619     while (client_list != NULL)
 620         client_unmanage(client_list->data);
 621 }
 622
 623 void client_unmanage(ObClient *self)
 624 {
 625     guint j;
 626     GSList *it;
 627
 628     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 629              self->window, self->frame->plate,
 630              self->class, self->title ? self->title : "");
 631
 632     g_assert(self != NULL);
 633
 634     /* we dont want events no more. do this before hiding the frame so we
 635        don't generate more events */
 636     XSelectInput(ob_display, self->window, NoEventMask);
 637
 638     frame_hide(self->frame);
 639     /* flush to send the hide to the server quickly */
 640     XFlush(ob_display);
 641
 642     /* ignore enter events from the unmap so it doesnt mess with the
 643        focus */
 644     event_ignore_all_queued_enters();
 645
 646     mouse_grab_for_client(self, FALSE);
 647
 648     /* remove the window from our save set */
 649     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 650
 651     /* kill the property windows */
 652     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 653
 654     /* update the focus lists */
 655     focus_order_remove(self);
 656     if (client_focused(self)) {
 657         /* don't leave an invalid focus_client */
 658         focus_client = NULL;
 659     }
 660
 661     client_list = g_list_remove(client_list, self);
 662     stacking_remove(self);
 663     g_hash_table_remove(window_map, &self->window);
 664
 665     /* once the client is out of the list, update the struts to remove its
 666        influence */
 667     if (STRUT_EXISTS(self->strut))
 668         screen_update_areas();
 669
 670     client_call_notifies(self, client_destroy_notifies);
 671
 672     /* tell our parent(s) that we're gone */
 673     if (self->transient_for == OB_TRAN_GROUP) { /* transient of group */
 674         for (it = self->group->members; it; it = g_slist_next(it))
 675             if (it->data != self)
 676                 ((ObClient*)it->data)->transients =
 677                     g_slist_remove(((ObClient*)it->data)->transients,self);
 678     } else if (self->transient_for) {        /* transient of window */
 679         self->transient_for->transients =
 680             g_slist_remove(self->transient_for->transients, self);
 681     }
 682
 683     /* tell our transients that we're gone */
 684     for (it = self->transients; it; it = g_slist_next(it)) {
 685         if (((ObClient*)it->data)->transient_for != OB_TRAN_GROUP) {
 686             ((ObClient*)it->data)->transient_for = NULL;
 687             client_calc_layer(it->data);
 688         }
 689     }
 690
 691     /* remove from its group */
 692     if (self->group) {
 693         group_remove(self->group, self);
 694         self->group = NULL;
 695     }
 696
 697     /* restore the window's original geometry so it is not lost */
 698     {
 699         Rect a;
 700
 701         a = self->area;
 702
 703         if (self->fullscreen)
 704             a = self->pre_fullscreen_area;
 705         else if (self->max_horz || self->max_vert) {
 706             if (self->max_horz) {
 707                 a.x = self->pre_max_area.x;
 708                 a.width = self->pre_max_area.width;
 709             }
 710             if (self->max_vert) {
 711                 a.y = self->pre_max_area.y;
 712                 a.height = self->pre_max_area.height;
 713             }
 714         }
 715
 716         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 717         /* let it be moved and resized no matter what */
 718         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 719         self->decorations = 0; /* unmanaged windows have no decor */
 720
 721         client_move_resize(self, a.x, a.y, a.width, a.height);
 722     }
 723
 724     /* reparent the window out of the frame, and free the frame */
 725     frame_release_client(self->frame);
 726     frame_free(self->frame);
 727     self->frame = NULL;
 728
 729     if (ob_state() != OB_STATE_EXITING) {
 730         /* these values should not be persisted across a window
 731            unmapping/mapping */
 732         PROP_ERASE(self->window, net_wm_desktop);
 733         PROP_ERASE(self->window, net_wm_state);
 734         PROP_ERASE(self->window, wm_state);
 735     } else {
 736         /* if we're left in an unmapped state, the client wont be mapped.
 737            this is bad, since we will no longer be managing the window on
 738            restart */
 739         XMapWindow(ob_display, self->window);
 740     }
 741
 742     /* update the list hints */
 743     client_set_list();
 744
 745     ob_debug("Unmanaged window 0x%lx\n", self->window);
 746
 747     /* free all data allocated in the client struct */
 748     g_slist_free(self->transients);
 749     for (j = 0; j < self->nicons; ++j)
 750         g_free(self->icons[j].data);
 751     if (self->nicons > 0)
 752         g_free(self->icons);
 753     g_free(self->wm_command);
 754     g_free(self->title);
 755     g_free(self->icon_title);
 756     g_free(self->name);
 757     g_free(self->class);
 758     g_free(self->role);
 759     g_free(self->client_machine);
 760     g_free(self->sm_client_id);
 761     g_free(self);
 762 }
 763
 764 void client_fake_unmanage(ObClient *self)
 765 {
 766     /* this is all that got allocated to get the decorations */
 767
 768     frame_free(self->frame);
 769     g_free(self);
 770 }
 771
 772 /*! Returns a new structure containing the per-app settings for this client.
 773   The returned structure needs to be freed with g_free. */
 774 static ObAppSettings *client_get_settings_state(ObClient *self)
 775 {
 776     ObAppSettings *settings;
 777     GSList *it;
 778
 779     settings = config_create_app_settings();
 780
 781     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 782         ObAppSettings *app = it->data;
 783         gboolean match = TRUE;
 784
 785         g_assert(app->name != NULL || app->class != NULL);
 786
 787         /* we know that either name or class is not NULL so it will have to
 788            match to use the rule */
 789         if (app->name &&
 790             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 791             match = FALSE;
 792         else if (app->class &&
 793                 !g_pattern_match(app->class,
 794                                  strlen(self->class), self->class, NULL))
 795             match = FALSE;
 796         else if (app->role &&
 797                  !g_pattern_match(app->role,
 798                                   strlen(self->role), self->role, NULL))
 799             match = FALSE;
 800
 801         if (match) {
 802             ob_debug("Window matching: %s\n", app->name);
 803
 804             /* copy the settings to our struct, overriding the existing
 805                settings if they are not defaults */
 806             config_app_settings_copy_non_defaults(app, settings);
 807         }
 808     }
 809
 810     if (settings->shade != -1)
 811         self->shaded = !!settings->shade;
 812     if (settings->decor != -1)
 813         self->undecorated = !settings->decor;
 814     if (settings->iconic != -1)
 815         self->iconic = !!settings->iconic;
 816     if (settings->skip_pager != -1)
 817         self->skip_pager = !!settings->skip_pager;
 818     if (settings->skip_taskbar != -1)
 819         self->skip_taskbar = !!settings->skip_taskbar;
 820
 821     if (settings->max_vert != -1)
 822         self->max_vert = !!settings->max_vert;
 823     if (settings->max_horz != -1)
 824         self->max_horz = !!settings->max_horz;
 825
 826     if (settings->fullscreen != -1)
 827         self->fullscreen = !!settings->fullscreen;
 828
 829     if (settings->desktop) {
 830         if (settings->desktop == DESKTOP_ALL)
 831             self->desktop = settings->desktop;
 832         else if (settings->desktop > 0 &&
 833                  settings->desktop <= screen_num_desktops)
 834             self->desktop = settings->desktop - 1;
 835     }
 836
 837     if (settings->layer == -1) {
 838         self->below = TRUE;
 839         self->above = FALSE;
 840     }
 841     else if (settings->layer == 0) {
 842         self->below = FALSE;
 843         self->above = FALSE;
 844     }
 845     else if (settings->layer == 1) {
 846         self->below = FALSE;
 847         self->above = TRUE;
 848     }
 849     return settings;
 850 }
 851
 852 static void client_restore_session_state(ObClient *self)
 853 {
 854     GList *it;
 855
 856     ob_debug_type(OB_DEBUG_SM,
 857                   "Restore session for client %s\n", self->title);
 858
 859     if (!(it = session_state_find(self))) {
 860         ob_debug_type(OB_DEBUG_SM,
 861                       "Session data not found for client %s\n", self->title);
 862         return;
 863     }
 864
 865     self->session = it->data;
 866
 867     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 868                   self->title);
 869
 870     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 871     self->positioned = USPosition;
 872     self->sized = USSize;
 873     if (self->session->w > 0)
 874         self->area.width = self->session->w;
 875     if (self->session->h > 0)
 876         self->area.height = self->session->h;
 877     XResizeWindow(ob_display, self->window,
 878                   self->area.width, self->area.height);
 879
 880     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 881                      self->session->desktop :
 882                      MIN(screen_num_desktops - 1, self->session->desktop));
 883     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 884
 885     self->shaded = self->session->shaded;
 886     self->iconic = self->session->iconic;
 887     self->skip_pager = self->session->skip_pager;
 888     self->skip_taskbar = self->session->skip_taskbar;
 889     self->fullscreen = self->session->fullscreen;
 890     self->above = self->session->above;
 891     self->below = self->session->below;
 892     self->max_horz = self->session->max_horz;
 893     self->max_vert = self->session->max_vert;
 894     self->undecorated = self->session->undecorated;
 895 }
 896
 897 static gboolean client_restore_session_stacking(ObClient *self)
 898 {
 899     GList *it, *mypos;
 900
 901     if (!self->session) return FALSE;
 902
 903     mypos = g_list_find(session_saved_state, self->session);
 904     if (!mypos) return FALSE;
 905
 906     /* start above me and look for the first client */
 907     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 908         GList *cit;
 909
 910         for (cit = client_list; cit; cit = g_list_next(cit)) {
 911             ObClient *c = cit->data;
 912             /* found a client that was in the session, so go below it */
 913             if (c->session == it->data) {
 914                 stacking_below(CLIENT_AS_WINDOW(self),
 915                                CLIENT_AS_WINDOW(cit->data));
 916                 return TRUE;
 917             }
 918         }
 919     }
 920     return FALSE;
 921 }
 922
 923 void client_move_onscreen(ObClient *self, gboolean rude)
 924 {
 925     gint x = self->area.x;
 926     gint y = self->area.y;
 927     if (client_find_onscreen(self, &x, &y,
 928                              self->area.width,
 929                              self->area.height, rude)) {
 930         client_move(self, x, y);
 931     }
 932 }
 933
 934 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 935                               gboolean rude)
 936 {
 937     Rect *mon_a, *all_a;
 938     gint ox = *x, oy = *y;
 939     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 940     gint fw, fh;
 941     Rect desired;
 942
 943     RECT_SET(desired, *x, *y, w, h);
 944     all_a = screen_area(self->desktop);
 945     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired));
 946
 947     /* get where the frame would be */
 948     frame_client_gravity(self->frame, x, y, w, h);
 949
 950     /* get the requested size of the window with decorations */
 951     fw = self->frame->size.left + w + self->frame->size.right;
 952     fh = self->frame->size.top + h + self->frame->size.bottom;
 953
 954     /* This makes sure windows aren't entirely outside of the screen so you
 955        can't see them at all.
 956        It makes sure 10% of the window is on the screen at least. At don't let
 957        it move itself off the top of the screen, which would hide the titlebar
 958        on you. (The user can still do this if they want too, it's only limiting
 959        the application.
 960
 961        XXX watch for xinerama dead areas...
 962     */
 963     if (client_normal(self)) {
 964         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 965             *x = all_a->x + all_a->width - fw/10;
 966         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 967             *y = all_a->y + all_a->height - fh/10;
 968         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 969             *x = all_a->x - fw*9/10;
 970         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 971             *y = all_a->y - fw*9/10;
 972     }
 973
 974     /* If rudeness wasn't requested, then figure out of the client is currently
 975        entirely on the screen. If it is, and the position isn't changing by
 976        request, and it is enlarging, then be rude even though it wasn't
 977        requested */
 978     if (!rude) {
 979         Point oldtl, oldtr, oldbl, oldbr;
 980         Point newtl, newtr, newbl, newbr;
 981         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 982
 983         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 984         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 985                   self->frame->area.y + self->frame->area.height - 1);
 986         POINT_SET(oldtr, oldbr.x, oldtl.y);
 987         POINT_SET(oldbl, oldtl.x, oldbr.y);
 988
 989         POINT_SET(newtl, *x, *y);
 990         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 991         POINT_SET(newtr, newbr.x, newtl.y);
 992         POINT_SET(newbl, newtl.x, newbr.y);
 993
 994         /* is it moving or just resizing from some corner? */
 995         stationary_l = oldtl.x == newtl.x;
 996         stationary_r = oldtr.x == newtr.x;
 997         stationary_t = oldtl.y == newtl.y;
 998         stationary_b = oldbl.y == newbl.y;
 999
1000         /* if left edge is growing and didnt move right edge */
1001         if (stationary_r && newtl.x < oldtl.x)
1002             rudel = TRUE;
1003         /* if right edge is growing and didnt move left edge */
1004         if (stationary_l && newtr.x > oldtr.x)
1005             ruder = TRUE;
1006         /* if top edge is growing and didnt move bottom edge */
1007         if (stationary_b && newtl.y < oldtl.y)
1008             rudet = TRUE;
1009         /* if bottom edge is growing and didnt move top edge */
1010         if (stationary_t && newbl.y > oldbl.y)
1011             rudeb = TRUE;
1012     }
1013
1014     /* This here doesn't let windows even a pixel outside the struts/screen.
1015      * When called from client_manage, programs placing themselves are
1016      * forced completely onscreen, while things like
1017      * xterm -geometry resolution-width/2 will work fine. Trying to
1018      * place it completely offscreen will be handled in the above code.
1019      * Sorry for this confused comment, i am tired. */
1020     if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
1021     if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
1022         *x = mon_a->x + MAX(0, mon_a->width - fw);
1023
1024     if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
1025     if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
1026         *y = mon_a->y + MAX(0, mon_a->height - fh);
1027
1028     /* get where the client should be */
1029     frame_frame_gravity(self->frame, x, y, w, h);
1030
1031     return ox != *x || oy != *y;
1032 }
1033
1034 static void client_get_all(ObClient *self, gboolean real)
1035 {
1036     /* this is needed for the frame to set itself up */
1037     client_get_area(self);
1038
1039     /* these things can change the decor and functions of the window */
1040
1041     client_get_mwm_hints(self);
1042     /* this can change the mwmhints for special cases */
1043     client_get_type_and_transientness(self);
1044     client_get_state(self);
1045     client_update_normal_hints(self);
1046
1047     /* get the session related properties, these can change decorations
1048        from per-app settings */
1049     client_get_session_ids(self);
1050
1051     /* now we got everything that can affect the decorations */
1052     if (!real)
1053         return;
1054
1055     /* get this early so we have it for debugging */
1056     client_update_title(self);
1057
1058     client_update_protocols(self);
1059
1060     client_update_wmhints(self);
1061     /* this may have already been called from client_update_wmhints */
1062     if (self->transient_for == NULL)
1063         client_update_transient_for(self);
1064
1065     client_get_startup_id(self);
1066     client_get_desktop(self);/* uses transient data/group/startup id if a
1067                                 desktop is not specified */
1068     client_get_shaped(self);
1069
1070     {
1071         /* a couple type-based defaults for new windows */
1072
1073         /* this makes sure that these windows appear on all desktops */
1074         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1075             self->desktop = DESKTOP_ALL;
1076     }
1077
1078 #ifdef SYNC
1079     client_update_sync_request_counter(self);
1080 #endif
1081
1082     client_get_colormap(self);
1083     client_update_strut(self);
1084     client_update_icons(self);
1085     client_update_user_time_window(self);
1086     if (!self->user_time_window) /* check if this would have been called */
1087         client_update_user_time(self);
1088     client_update_icon_geometry(self);
1089 }
1090
1091 static void client_get_startup_id(ObClient *self)
1092 {
1093     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1094         if (self->group)
1095             PROP_GETS(self->group->leader,
1096                       net_startup_id, utf8, &self->startup_id);
1097 }
1098
1099 static void client_get_area(ObClient *self)
1100 {
1101     XWindowAttributes wattrib;
1102     Status ret;
1103
1104     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1105     g_assert(ret != BadWindow);
1106
1107     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1108     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1109     self->border_width = wattrib.border_width;
1110
1111     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1112              wattrib.width, wattrib.height, wattrib.border_width);
1113 }
1114
1115 static void client_get_desktop(ObClient *self)
1116 {
1117     guint32 d = screen_num_desktops; /* an always-invalid value */
1118
1119     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1120         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1121             self->desktop = screen_num_desktops - 1;
1122         else
1123             self->desktop = d;
1124         ob_debug("client requested desktop 0x%x\n", self->desktop);
1125     } else {
1126         gboolean trdesk = FALSE;
1127
1128         if (self->transient_for) {
1129             if (self->transient_for != OB_TRAN_GROUP) {
1130                 if (self->transient_for->desktop != DESKTOP_ALL) {
1131                     self->desktop = self->transient_for->desktop;
1132                     trdesk = TRUE;
1133                 }
1134             } else {
1135                 /* if all the group is on one desktop, then open it on the
1136                    same desktop */
1137                 GSList *it;
1138                 gboolean first = TRUE;
1139                 guint all = screen_num_desktops; /* not a valid value */
1140
1141                 for (it = self->group->members; it; it = g_slist_next(it)) {
1142                     ObClient *c = it->data;
1143                     if (c != self) {
1144                         if (first) {
1145                             all = c->desktop;
1146                             first = FALSE;
1147                         }
1148                         else if (all != c->desktop)
1149                             all = screen_num_desktops; /* make it invalid */
1150                     }
1151                 }
1152                 if (all != screen_num_desktops) {
1153                     self->desktop = all;
1154                     trdesk = TRUE;
1155                 }
1156             }
1157         }
1158         if (!trdesk) {
1159             /* try get from the startup-notification protocol */
1160             if (sn_get_desktop(self->startup_id, &self->desktop)) {
1161                 if (self->desktop >= screen_num_desktops &&
1162                     self->desktop != DESKTOP_ALL)
1163                     self->desktop = screen_num_desktops - 1;
1164             } else
1165                 /* defaults to the current desktop */
1166                 self->desktop = screen_desktop;
1167         }
1168     }
1169 }
1170
1171 static void client_get_state(ObClient *self)
1172 {
1173     guint32 *state;
1174     guint num;
1175
1176     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1177         gulong i;
1178         for (i = 0; i < num; ++i) {
1179             if (state[i] == prop_atoms.net_wm_state_modal)
1180                 self->modal = TRUE;
1181             else if (state[i] == prop_atoms.net_wm_state_shaded)
1182                 self->shaded = TRUE;
1183             else if (state[i] == prop_atoms.net_wm_state_hidden)
1184                 self->iconic = TRUE;
1185             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1186                 self->skip_taskbar = TRUE;
1187             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1188                 self->skip_pager = TRUE;
1189             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1190                 self->fullscreen = TRUE;
1191             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1192                 self->max_vert = TRUE;
1193             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1194                 self->max_horz = TRUE;
1195             else if (state[i] == prop_atoms.net_wm_state_above)
1196                 self->above = TRUE;
1197             else if (state[i] == prop_atoms.net_wm_state_below)
1198                 self->below = TRUE;
1199             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1200                 self->demands_attention = TRUE;
1201             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1202                 self->undecorated = TRUE;
1203         }
1204
1205         g_free(state);
1206     }
1207 }
1208
1209 static void client_get_shaped(ObClient *self)
1210 {
1211     self->shaped = FALSE;
1212 #ifdef   SHAPE
1213     if (extensions_shape) {
1214         gint foo;
1215         guint ufoo;
1216         gint s;
1217
1218         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1219
1220         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1221                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1222                            &ufoo);
1223         self->shaped = (s != 0);
1224     }
1225 #endif
1226 }
1227
1228 void client_update_transient_for(ObClient *self)
1229 {
1230     Window t = None;
1231     ObClient *target = NULL;
1232
1233     if (XGetTransientForHint(ob_display, self->window, &t)) {
1234         if (t != self->window) { /* cant be transient to itself! */
1235             target = g_hash_table_lookup(window_map, &t);
1236             /* if this happens then we need to check for it*/
1237             g_assert(target != self);
1238             if (target && !WINDOW_IS_CLIENT(target)) {
1239                 /* this can happen when a dialog is a child of
1240                    a dockapp, for example */
1241                 target = NULL;
1242             }
1243
1244             /* THIS IS SO ANNOYING ! ! ! ! Let me explain.... have a seat..
1245
1246                Setting the transient_for to Root is actually illegal, however
1247                applications from time have done this to specify transient for
1248                their group.
1249
1250                Now you can do that by being a TYPE_DIALOG and not setting
1251                the transient_for hint at all on your window. But people still
1252                use Root, and Kwin is very strange in this regard.
1253
1254                KWin 3.0 will not consider windows with transient_for set to
1255                Root as transient for their group *UNLESS* they are also modal.
1256                In that case, it will make them transient for the group. This
1257                leads to all sorts of weird behavior from KDE apps which are
1258                only tested in KWin. I'd like to follow their behavior just to
1259                make this work right with KDE stuff, but that seems wrong.
1260             */
1261             if (!target && self->group) {
1262                 /* not transient to a client, see if it is transient for a
1263                    group */
1264                 if (t == RootWindow(ob_display, ob_screen)) {
1265                     /* window is a transient for its group! */
1266                     target = OB_TRAN_GROUP;
1267                 }
1268             }
1269         }
1270     } else if (self->transient && self->group)
1271         target = OB_TRAN_GROUP;
1272
1273     client_update_transient_tree(self, self->group, self->group,
1274                                  self->transient_for, target);
1275     self->transient_for = target;
1276
1277 }
1278
1279 static void client_update_transient_tree(ObClient *self,
1280                                          ObGroup *oldgroup, ObGroup *newgroup,
1281                                          ObClient* oldparent,
1282                                          ObClient *newparent)
1283 {
1284     GSList *it, *next;
1285     ObClient *c;
1286
1287     /* * *
1288       Group transient windows are not allowed to have other group
1289       transient windows as their children.
1290       * * */
1291
1292
1293     /* No change has occured */
1294     if (oldgroup == newgroup && oldparent == newparent) return;
1295
1296     /** Remove the client from the transient tree wherever it has changed **/
1297
1298     /* If the window is becoming a direct transient for a window in its group
1299        then any group transients which were our children and are now becoming
1300        our parents need to stop being our children.
1301
1302        Group transients can't be children of group transients already, but
1303        we could have any number of direct parents above up, any of which could
1304        be transient for the group, and we need to remove it from our children.
1305     */
1306     if (oldparent != newparent &&
1307         newparent != NULL && newparent != OB_TRAN_GROUP &&
1308         newgroup != NULL && newgroup == oldgroup)
1309     {
1310         ObClient *look = newparent;
1311         do {
1312             self->transients = g_slist_remove(self->transients, look);
1313             look = look->transient_for;
1314         } while (look != NULL && look != OB_TRAN_GROUP);
1315     }
1316
1317
1318     /* If the group changed, or if we are just becoming transient for the
1319        group, then we need to remove any old group transient windows
1320        from our children. But if we were already transient for the group, then
1321        other group transients are not our children. */
1322     if ((oldgroup != newgroup ||
1323          (newparent == OB_TRAN_GROUP && oldparent != newparent)) &&
1324         oldgroup != NULL && oldparent != OB_TRAN_GROUP)
1325     {
1326         for (it = self->transients; it; it = next) {
1327             next = g_slist_next(it);
1328             c = it->data;
1329             if (c->group == oldgroup)
1330                 self->transients = g_slist_delete_link(self->transients, it);
1331         }
1332     }
1333
1334     /* If we used to be transient for a group and now we are not, or we're
1335        transient for a new group, then we need to remove ourselves from all
1336        our ex-parents */
1337     if (oldparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1338                                        oldparent != newparent))
1339     {
1340         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1341             c = it->data;
1342             if (c != self && (!c->transient_for ||
1343                               c->transient_for != OB_TRAN_GROUP))
1344                 c->transients = g_slist_remove(c->transients, self);
1345         }
1346     }
1347     /* If we used to be transient for a single window and we are no longer
1348        transient for it, then we need to remove ourself from its children */
1349     else if (oldparent != NULL && oldparent != OB_TRAN_GROUP &&
1350              oldparent != newparent)
1351         oldparent->transients = g_slist_remove(oldparent->transients, self);
1352
1353
1354     /** Re-add the client to the transient tree wherever it has changed **/
1355
1356     /* If we're now transient for a group and we weren't transient for it
1357        before then we need to add ourselves to all our new parents */
1358     if (newparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1359                                        oldparent != newparent))
1360     {
1361         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1362             c = it->data;
1363             if (c != self && (!c->transient_for ||
1364                               c->transient_for != OB_TRAN_GROUP))
1365                 c->transients = g_slist_prepend(c->transients, self);
1366         }
1367     }
1368     /* If we are now transient for a single window which we weren't before,
1369        we need to add ourselves to its children
1370
1371        WARNING: Cyclical transient ness is possible if two windows are
1372        transient for eachother.
1373     */
1374     else if (newparent != NULL && newparent != OB_TRAN_GROUP &&
1375              newparent != oldparent &&
1376              /* don't make ourself its child if it is already our child */
1377              !client_is_direct_child(self, newparent))
1378         newparent->transients = g_slist_prepend(newparent->transients, self);
1379
1380     /* If the group changed then we need to add any new group transient
1381        windows to our children. But if we're transient for the group, then
1382        other group transients are not our children.
1383
1384        WARNING: Cyclical transient-ness is possible. For e.g. if:
1385        A is transient for the group
1386        B is transient for A
1387        C is transient for B
1388        A can't be transient for C or we have a cycle
1389     */
1390     if (oldgroup != newgroup && newgroup != NULL &&
1391         newparent != OB_TRAN_GROUP)
1392     {
1393         for (it = newgroup->members; it; it = g_slist_next(it)) {
1394             c = it->data;
1395             if (c != self && c->transient_for == OB_TRAN_GROUP &&
1396                 /* Don't make it our child if it is already our parent */
1397                 !client_is_direct_child(c, self))
1398             {
1399                 self->transients = g_slist_prepend(self->transients, c);
1400             }
1401         }
1402     }
1403 }
1404
1405 static void client_get_mwm_hints(ObClient *self)
1406 {
1407     guint num;
1408     guint32 *hints;
1409
1410     self->mwmhints.flags = 0; /* default to none */
1411
1412     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1413                     &hints, &num)) {
1414         if (num >= OB_MWM_ELEMENTS) {
1415             self->mwmhints.flags = hints[0];
1416             self->mwmhints.functions = hints[1];
1417             self->mwmhints.decorations = hints[2];
1418         }
1419         g_free(hints);
1420     }
1421 }
1422
1423 void client_get_type_and_transientness(ObClient *self)
1424 {
1425     guint num, i;
1426     guint32 *val;
1427     Window t;
1428
1429     self->type = -1;
1430     self->transient = FALSE;
1431
1432     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1433         /* use the first value that we know about in the array */
1434         for (i = 0; i < num; ++i) {
1435             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1436                 self->type = OB_CLIENT_TYPE_DESKTOP;
1437             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1438                 self->type = OB_CLIENT_TYPE_DOCK;
1439             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1440                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1441             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1442                 self->type = OB_CLIENT_TYPE_MENU;
1443             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1444                 self->type = OB_CLIENT_TYPE_UTILITY;
1445             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1446                 self->type = OB_CLIENT_TYPE_SPLASH;
1447             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1448                 self->type = OB_CLIENT_TYPE_DIALOG;
1449             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1450                 self->type = OB_CLIENT_TYPE_NORMAL;
1451             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1452                 /* prevent this window from getting any decor or
1453                    functionality */
1454                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1455                                          OB_MWM_FLAG_DECORATIONS);
1456                 self->mwmhints.decorations = 0;
1457                 self->mwmhints.functions = 0;
1458             }
1459             if (self->type != (ObClientType) -1)
1460                 break; /* grab the first legit type */
1461         }
1462         g_free(val);
1463     }
1464
1465     if (XGetTransientForHint(ob_display, self->window, &t))
1466         self->transient = TRUE;
1467
1468     if (self->type == (ObClientType) -1) {
1469         /*the window type hint was not set, which means we either classify
1470           ourself as a normal window or a dialog, depending on if we are a
1471           transient. */
1472         if (self->transient)
1473             self->type = OB_CLIENT_TYPE_DIALOG;
1474         else
1475             self->type = OB_CLIENT_TYPE_NORMAL;
1476     }
1477
1478     /* then, based on our type, we can update our transientness.. */
1479     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1480         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1481         self->type == OB_CLIENT_TYPE_MENU ||
1482         self->type == OB_CLIENT_TYPE_UTILITY)
1483     {
1484         self->transient = TRUE;
1485     }
1486 }
1487
1488 void client_update_protocols(ObClient *self)
1489 {
1490     guint32 *proto;
1491     guint num_return, i;
1492
1493     self->focus_notify = FALSE;
1494     self->delete_window = FALSE;
1495
1496     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1497         for (i = 0; i < num_return; ++i) {
1498             if (proto[i] == prop_atoms.wm_delete_window)
1499                 /* this means we can request the window to close */
1500                 self->delete_window = TRUE;
1501             else if (proto[i] == prop_atoms.wm_take_focus)
1502                 /* if this protocol is requested, then the window will be
1503                    notified whenever we want it to receive focus */
1504                 self->focus_notify = TRUE;
1505 #ifdef SYNC
1506             else if (proto[i] == prop_atoms.net_wm_sync_request)
1507                 /* if this protocol is requested, then resizing the
1508                    window will be synchronized between the frame and the
1509                    client */
1510                 self->sync_request = TRUE;
1511 #endif
1512         }
1513         g_free(proto);
1514     }
1515 }
1516
1517 #ifdef SYNC
1518 void client_update_sync_request_counter(ObClient *self)
1519 {
1520     guint32 i;
1521
1522     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1523         self->sync_counter = i;
1524     } else
1525         self->sync_counter = None;
1526 }
1527 #endif
1528
1529 void client_get_colormap(ObClient *self)
1530 {
1531     XWindowAttributes wa;
1532
1533     if (XGetWindowAttributes(ob_display, self->window, &wa))
1534         client_update_colormap(self, wa.colormap);
1535 }
1536
1537 void client_update_colormap(ObClient *self, Colormap colormap)
1538 {
1539     if (colormap == self->colormap) return;
1540
1541     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1542
1543     if (client_focused(self)) {
1544         screen_install_colormap(self, FALSE); /* uninstall old one */
1545         self->colormap = colormap;
1546         screen_install_colormap(self, FALSE); /* install new one */
1547     } else
1548         self->colormap = colormap;
1549 }
1550
1551 void client_update_normal_hints(ObClient *self)
1552 {
1553     XSizeHints size;
1554     glong ret;
1555
1556     /* defaults */
1557     self->min_ratio = 0.0f;
1558     self->max_ratio = 0.0f;
1559     SIZE_SET(self->size_inc, 1, 1);
1560     SIZE_SET(self->base_size, 0, 0);
1561     SIZE_SET(self->min_size, 0, 0);
1562     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1563
1564     /* get the hints from the window */
1565     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1566         /* normal windows can't request placement! har har
1567         if (!client_normal(self))
1568         */
1569         self->positioned = (size.flags & (PPosition|USPosition));
1570         self->sized = (size.flags & (PSize|USSize));
1571
1572         if (size.flags & PWinGravity)
1573             self->gravity = size.win_gravity;
1574
1575         if (size.flags & PAspect) {
1576             if (size.min_aspect.y)
1577                 self->min_ratio =
1578                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1579             if (size.max_aspect.y)
1580                 self->max_ratio =
1581                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1582         }
1583
1584         if (size.flags & PMinSize)
1585             SIZE_SET(self->min_size, size.min_width, size.min_height);
1586
1587         if (size.flags & PMaxSize)
1588             SIZE_SET(self->max_size, size.max_width, size.max_height);
1589
1590         if (size.flags & PBaseSize)
1591             SIZE_SET(self->base_size, size.base_width, size.base_height);
1592
1593         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1594             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1595     }
1596 }
1597
1598 /*! This needs to be followed by a call to client_configure to make
1599   the changes show */
1600 void client_setup_decor_and_functions(ObClient *self)
1601 {
1602     /* start with everything (cept fullscreen) */
1603     self->decorations =
1604         (OB_FRAME_DECOR_TITLEBAR |
1605          OB_FRAME_DECOR_HANDLE |
1606          OB_FRAME_DECOR_GRIPS |
1607          OB_FRAME_DECOR_BORDER |
1608          OB_FRAME_DECOR_ICON |
1609          OB_FRAME_DECOR_ALLDESKTOPS |
1610          OB_FRAME_DECOR_ICONIFY |
1611          OB_FRAME_DECOR_MAXIMIZE |
1612          OB_FRAME_DECOR_SHADE |
1613          OB_FRAME_DECOR_CLOSE);
1614     self->functions =
1615         (OB_CLIENT_FUNC_RESIZE |
1616          OB_CLIENT_FUNC_MOVE |
1617          OB_CLIENT_FUNC_ICONIFY |
1618          OB_CLIENT_FUNC_MAXIMIZE |
1619          OB_CLIENT_FUNC_SHADE |
1620          OB_CLIENT_FUNC_CLOSE |
1621          OB_CLIENT_FUNC_BELOW |
1622          OB_CLIENT_FUNC_ABOVE |
1623          OB_CLIENT_FUNC_UNDECORATE);
1624
1625     if (!(self->min_size.width < self->max_size.width ||
1626           self->min_size.height < self->max_size.height))
1627         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1628
1629     switch (self->type) {
1630     case OB_CLIENT_TYPE_NORMAL:
1631         /* normal windows retain all of the possible decorations and
1632            functionality, and are the only windows that you can fullscreen */
1633         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1634         break;
1635
1636     case OB_CLIENT_TYPE_DIALOG:
1637     case OB_CLIENT_TYPE_UTILITY:
1638         /* these windows don't have anything added or removed by default */
1639         break;
1640
1641     case OB_CLIENT_TYPE_MENU:
1642     case OB_CLIENT_TYPE_TOOLBAR:
1643         /* these windows can't iconify or maximize */
1644         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1645                                OB_FRAME_DECOR_MAXIMIZE);
1646         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1647                              OB_CLIENT_FUNC_MAXIMIZE);
1648         break;
1649
1650     case OB_CLIENT_TYPE_SPLASH:
1651         /* these don't get get any decorations, and the only thing you can
1652            do with them is move them */
1653         self->decorations = 0;
1654         self->functions = OB_CLIENT_FUNC_MOVE;
1655         break;
1656
1657     case OB_CLIENT_TYPE_DESKTOP:
1658         /* these windows are not manipulated by the window manager */
1659         self->decorations = 0;
1660         self->functions = 0;
1661         break;
1662
1663     case OB_CLIENT_TYPE_DOCK:
1664         /* these windows are not manipulated by the window manager, but they
1665            can set below layer which has a special meaning */
1666         self->decorations = 0;
1667         self->functions = OB_CLIENT_FUNC_BELOW;
1668         break;
1669     }
1670
1671     /* Mwm Hints are applied subtractively to what has already been chosen for
1672        decor and functionality */
1673     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1674         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1675             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1676                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1677             {
1678                 /* if the mwm hints request no handle or title, then all
1679                    decorations are disabled, but keep the border if that's
1680                    specified */
1681                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1682                     self->decorations = OB_FRAME_DECOR_BORDER;
1683                 else
1684                     self->decorations = 0;
1685             }
1686         }
1687     }
1688
1689     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1690         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1691             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1692                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1693             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1694                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1695             /* dont let mwm hints kill any buttons
1696                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1697                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1698                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1699                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1700             */
1701             /* dont let mwm hints kill the close button
1702                if (! (self->mwmhints.functions & MwmFunc_Close))
1703                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1704         }
1705     }
1706
1707     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1708         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1709     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1710         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1711     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1712         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1713
1714     /* can't maximize without moving/resizing */
1715     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1716           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1717           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1718         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1719         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1720     }
1721
1722     if (self->max_horz && self->max_vert) {
1723         /* you can't resize fully maximized windows */
1724         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1725         /* kill the handle on fully maxed windows */
1726         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1727     }
1728
1729     /* If there are no decorations to remove, don't allow the user to try
1730        toggle the state */
1731     if (self->decorations == 0)
1732         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1733
1734     /* finally, the user can have requested no decorations, which overrides
1735        everything (but doesnt give it a border if it doesnt have one) */
1736     if (self->undecorated) {
1737         if (config_theme_keepborder)
1738             self->decorations &= OB_FRAME_DECOR_BORDER;
1739         else
1740             self->decorations = 0;
1741     }
1742
1743     /* if we don't have a titlebar, then we cannot shade! */
1744     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1745         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1746
1747     /* now we need to check against rules for the client's current state */
1748     if (self->fullscreen) {
1749         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1750                             OB_CLIENT_FUNC_FULLSCREEN |
1751                             OB_CLIENT_FUNC_ICONIFY);
1752         self->decorations = 0;
1753     }
1754
1755     client_change_allowed_actions(self);
1756 }
1757
1758 static void client_change_allowed_actions(ObClient *self)
1759 {
1760     gulong actions[12];
1761     gint num = 0;
1762
1763     /* desktop windows are kept on all desktops */
1764     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1765         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1766
1767     if (self->functions & OB_CLIENT_FUNC_SHADE)
1768         actions[num++] = prop_atoms.net_wm_action_shade;
1769     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1770         actions[num++] = prop_atoms.net_wm_action_close;
1771     if (self->functions & OB_CLIENT_FUNC_MOVE)
1772         actions[num++] = prop_atoms.net_wm_action_move;
1773     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1774         actions[num++] = prop_atoms.net_wm_action_minimize;
1775     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1776         actions[num++] = prop_atoms.net_wm_action_resize;
1777     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1778         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1779     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1780         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1781         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1782     }
1783     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1784         actions[num++] = prop_atoms.net_wm_action_above;
1785     if (self->functions & OB_CLIENT_FUNC_BELOW)
1786         actions[num++] = prop_atoms.net_wm_action_below;
1787     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1788         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1789
1790     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1791
1792     /* make sure the window isn't breaking any rules now */
1793
1794     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1795         if (self->frame) client_shade(self, FALSE);
1796         else self->shaded = FALSE;
1797     }
1798     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1799         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1800         else self->iconic = FALSE;
1801     }
1802     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1803         if (self->frame) client_fullscreen(self, FALSE);
1804         else self->fullscreen = FALSE;
1805     }
1806     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1807                                                          self->max_vert)) {
1808         if (self->frame) client_maximize(self, FALSE, 0);
1809         else self->max_vert = self->max_horz = FALSE;
1810     }
1811 }
1812
1813 void client_reconfigure(ObClient *self)
1814 {
1815     client_configure(self, self->area.x, self->area.y,
1816                      self->area.width, self->area.height,
1817                      self->border_width, FALSE, TRUE);
1818 }
1819
1820 void client_update_wmhints(ObClient *self)
1821 {
1822     XWMHints *hints;
1823
1824     /* assume a window takes input if it doesnt specify */
1825     self->can_focus = TRUE;
1826
1827     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1828         gboolean ur;
1829
1830         if (hints->flags & InputHint)
1831             self->can_focus = hints->input;
1832
1833         /* only do this when first managing the window *AND* when we aren't
1834            starting up! */
1835         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1836             if (hints->flags & StateHint)
1837                 self->iconic = hints->initial_state == IconicState;
1838
1839         ur = self->urgent;
1840         self->urgent = (hints->flags & XUrgencyHint);
1841         if (self->urgent && !ur)
1842             client_hilite(self, TRUE);
1843         else if (!self->urgent && ur && self->demands_attention)
1844             client_hilite(self, FALSE);
1845
1846         if (!(hints->flags & WindowGroupHint))
1847             hints->window_group = None;
1848
1849         /* did the group state change? */
1850         if (hints->window_group !=
1851             (self->group ? self->group->leader : None))
1852         {
1853             ObGroup *oldgroup = self->group;
1854
1855             /* remove from the old group if there was one */
1856             if (self->group != NULL) {
1857                 group_remove(self->group, self);
1858                 self->group = NULL;
1859             }
1860
1861             /* add ourself to the group if we have one */
1862             if (hints->window_group != None) {
1863                 self->group = group_add(hints->window_group, self);
1864             }
1865
1866             /* Put ourselves into the new group's transient tree, and remove
1867                ourselves from the old group's */
1868             client_update_transient_tree(self, oldgroup, self->group,
1869                                          self->transient_for,
1870                                          self->transient_for);
1871
1872             /* Lastly, being in a group, or not, can change if the window is
1873                transient for anything.
1874
1875                The logic for this is:
1876                self->transient = TRUE always if the window wants to be
1877                transient for something, even if transient_for was NULL because
1878                it wasn't in a group before.
1879
1880                If transient_for was NULL and oldgroup was NULL we can assume
1881                that when we add the new group, it will become transient for
1882                something.
1883
1884                If transient_for was OB_TRAN_GROUP, then it must have already
1885                had a group. If it is getting a new group, the above call to
1886                client_update_transient_tree has already taken care of
1887                everything ! If it is losing all group status then it will
1888                no longer be transient for anything and that needs to be
1889                updated.
1890             */
1891             if (self->transient &&
1892                 ((self->transient_for == NULL && oldgroup == NULL) ||
1893                  (self->transient_for == OB_TRAN_GROUP && !self->group)))
1894                 client_update_transient_for(self);
1895         }
1896
1897         /* the WM_HINTS can contain an icon */
1898         if (hints->flags & IconPixmapHint)
1899             client_update_icons(self);
1900
1901         XFree(hints);
1902     }
1903 }
1904
1905 void client_update_title(ObClient *self)
1906 {
1907     gchar *data = NULL;
1908     gchar *visible = NULL;
1909
1910     g_free(self->title);
1911
1912     /* try netwm */
1913     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1914         /* try old x stuff */
1915         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1916               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1917             if (self->transient) {
1918                 /*
1919                   GNOME alert windows are not given titles:
1920                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1921                 */
1922                 data = g_strdup("");
1923             } else
1924                 data = g_strdup("Unnamed Window");
1925         }
1926     }
1927
1928     if (self->client_machine) {
1929         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1930         g_free(data);
1931     } else
1932         visible = data;
1933
1934     PROP_SETS(self->window, net_wm_visible_name, visible);
1935     self->title = visible;
1936
1937     if (self->frame)
1938         frame_adjust_title(self->frame);
1939
1940     /* update the icon title */
1941     data = NULL;
1942     g_free(self->icon_title);
1943
1944     /* try netwm */
1945     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1946         /* try old x stuff */
1947         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1948               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1949             data = g_strdup(self->title);
1950
1951     if (self->client_machine) {
1952         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1953         g_free(data);
1954     } else
1955         visible = data;
1956
1957     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
1958     self->icon_title = visible;
1959 }
1960
1961 void client_update_strut(ObClient *self)
1962 {
1963     guint num;
1964     guint32 *data;
1965     gboolean got = FALSE;
1966     StrutPartial strut;
1967
1968     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1969                     &data, &num)) {
1970         if (num == 12) {
1971             got = TRUE;
1972             STRUT_PARTIAL_SET(strut,
1973                               data[0], data[2], data[1], data[3],
1974                               data[4], data[5], data[8], data[9],
1975                               data[6], data[7], data[10], data[11]);
1976         }
1977         g_free(data);
1978     }
1979
1980     if (!got &&
1981         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1982         if (num == 4) {
1983             const Rect *a;
1984
1985             got = TRUE;
1986
1987             /* use the screen's width/height */
1988             a = screen_physical_area();
1989
1990             STRUT_PARTIAL_SET(strut,
1991                               data[0], data[2], data[1], data[3],
1992                               a->y, a->y + a->height - 1,
1993                               a->x, a->x + a->width - 1,
1994                               a->y, a->y + a->height - 1,
1995                               a->x, a->x + a->width - 1);
1996         }
1997         g_free(data);
1998     }
1999
2000     if (!got)
2001         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2002                           0, 0, 0, 0, 0, 0, 0, 0);
2003
2004     if (!STRUT_EQUAL(strut, self->strut)) {
2005         self->strut = strut;
2006
2007         /* updating here is pointless while we're being mapped cuz we're not in
2008            the client list yet */
2009         if (self->frame)
2010             screen_update_areas();
2011     }
2012 }
2013
2014 void client_update_icons(ObClient *self)
2015 {
2016     guint num;
2017     guint32 *data;
2018     guint w, h, i, j;
2019
2020     for (i = 0; i < self->nicons; ++i)
2021         g_free(self->icons[i].data);
2022     if (self->nicons > 0)
2023         g_free(self->icons);
2024     self->nicons = 0;
2025
2026     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2027         /* figure out how many valid icons are in here */
2028         i = 0;
2029         while (num - i > 2) {
2030             w = data[i++];
2031             h = data[i++];
2032             i += w * h;
2033             if (i > num || w*h == 0) break;
2034             ++self->nicons;
2035         }
2036
2037         self->icons = g_new(ObClientIcon, self->nicons);
2038
2039         /* store the icons */
2040         i = 0;
2041         for (j = 0; j < self->nicons; ++j) {
2042             guint x, y, t;
2043
2044             w = self->icons[j].width = data[i++];
2045             h = self->icons[j].height = data[i++];
2046
2047             if (w*h == 0) continue;
2048
2049             self->icons[j].data = g_new(RrPixel32, w * h);
2050             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2051                 if (x >= w) {
2052                     x = 0;
2053                     ++y;
2054                 }
2055                 self->icons[j].data[t] =
2056                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2057                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2058                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2059                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2060             }
2061             g_assert(i <= num);
2062         }
2063
2064         g_free(data);
2065     } else {
2066         XWMHints *hints;
2067
2068         if ((hints = XGetWMHints(ob_display, self->window))) {
2069             if (hints->flags & IconPixmapHint) {
2070                 self->nicons++;
2071                 self->icons = g_new(ObClientIcon, self->nicons);
2072                 xerror_set_ignore(TRUE);
2073                 if (!RrPixmapToRGBA(ob_rr_inst,
2074                                     hints->icon_pixmap,
2075                                     (hints->flags & IconMaskHint ?
2076                                      hints->icon_mask : None),
2077                                     &self->icons[self->nicons-1].width,
2078                                     &self->icons[self->nicons-1].height,
2079                                     &self->icons[self->nicons-1].data)){
2080                     g_free(&self->icons[self->nicons-1]);
2081                     self->nicons--;
2082                 }
2083                 xerror_set_ignore(FALSE);
2084             }
2085             XFree(hints);
2086         }
2087     }
2088
2089     /* set the default icon onto the window
2090        in theory, this could be a race, but if a window doesn't set an icon
2091        or removes it entirely, it's not very likely it is going to set one
2092        right away afterwards */
2093     if (self->nicons == 0) {
2094         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2095         gulong *data;
2096
2097         data = g_new(gulong, 48*48+2);
2098         data[0] = data[1] =  48;
2099         for (i = 0; i < 48*48; ++i)
2100             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2101                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2102                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2103                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2104         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2105         g_free(data);
2106     } else if (self->frame)
2107         /* don't draw the icon empty if we're just setting one now anyways,
2108            we'll get the property change any second */
2109         frame_adjust_icon(self->frame);
2110 }
2111
2112 void client_update_user_time(ObClient *self)
2113 {
2114     guint32 time;
2115     gboolean got = FALSE;
2116
2117     if (self->user_time_window)
2118         got = PROP_GET32(self->user_time_window,
2119                          net_wm_user_time, cardinal, &time);
2120     if (!got)
2121         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2122
2123     if (got) {
2124         /* we set this every time, not just when it grows, because in practice
2125            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2126            backward we don't want all windows to stop focusing. we'll just
2127            assume noone is setting times older than the last one, cuz that
2128            would be pretty stupid anyways
2129         */
2130         self->user_time = time;
2131
2132         /*ob_debug("window %s user time %u\n", self->title, time);*/
2133     }
2134 }
2135
2136 void client_update_user_time_window(ObClient *self)
2137 {
2138     guint32 w;
2139
2140     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2141         w = None;
2142
2143     if (w != self->user_time_window) {
2144         /* remove the old window */
2145         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2146         self->user_time_window = None;
2147
2148         if (self->group && self->group->leader == w) {
2149             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2150                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2151             /* do it anyways..? */
2152         }
2153         else if (w == self->window) {
2154             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2155                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2156             w = None; /* don't do it */
2157         }
2158
2159         /* add the new window */
2160         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2161         self->user_time_window = w;
2162
2163         /* and update from it */
2164         client_update_user_time(self);
2165     }
2166 }
2167
2168 void client_update_icon_geometry(ObClient *self)
2169 {
2170     guint num;
2171     guint32 *data;
2172
2173     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2174
2175     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2176         && num == 4)
2177     {
2178         /* don't let them set it with an area < 0 */
2179         RECT_SET(self->icon_geometry, data[0], data[1],
2180                  MAX(data[2],0), MAX(data[3],0));
2181     }
2182 }
2183
2184 static void client_get_session_ids(ObClient *self)
2185 {
2186     guint32 leader;
2187     gboolean got;
2188     gchar *s;
2189     gchar **ss;
2190
2191     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2192         leader = None;
2193
2194     /* get the SM_CLIENT_ID */
2195     got = FALSE;
2196     if (leader)
2197         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2198     if (!got)
2199         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2200
2201     /* get the WM_CLASS (name and class). make them "" if they are not
2202        provided */
2203     got = FALSE;
2204     if (leader)
2205         got = PROP_GETSS(leader, wm_class, locale, &ss);
2206     if (!got)
2207         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2208
2209     if (got) {
2210         if (ss[0]) {
2211             self->name = g_strdup(ss[0]);
2212             if (ss[1])
2213                 self->class = g_strdup(ss[1]);
2214         }
2215         g_strfreev(ss);
2216     }
2217
2218     if (self->name == NULL) self->name = g_strdup("");
2219     if (self->class == NULL) self->class = g_strdup("");
2220
2221     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2222     got = FALSE;
2223     if (leader)
2224         got = PROP_GETS(leader, wm_window_role, locale, &s);
2225     if (!got)
2226         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2227
2228     if (got)
2229         self->role = s;
2230     else
2231         self->role = g_strdup("");
2232
2233     /* get the WM_COMMAND */
2234     got = FALSE;
2235
2236     if (leader)
2237         got = PROP_GETSS(leader, wm_command, locale, &ss);
2238     if (!got)
2239         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2240
2241     if (got) {
2242         /* merge/mash them all together */
2243         gchar *merge = NULL;
2244         gint i;
2245
2246         for (i = 0; ss[i]; ++i) {
2247             gchar *tmp = merge;
2248             if (merge)
2249                 merge = g_strconcat(merge, ss[i], NULL);
2250             else
2251                 merge = g_strconcat(ss[i], NULL);
2252             g_free(tmp);
2253         }
2254         g_strfreev(ss);
2255
2256         self->wm_command = merge;
2257     }
2258
2259     /* get the WM_CLIENT_MACHINE */
2260     got = FALSE;
2261     if (leader)
2262         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2263     if (!got)
2264         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2265
2266     if (got) {
2267         gchar localhost[128];
2268
2269         gethostname(localhost, 127);
2270         localhost[127] = '\0';
2271         if (strcmp(localhost, s) != 0)
2272             self->client_machine = s;
2273         else
2274             g_free(s);
2275     }
2276 }
2277
2278 static void client_change_wm_state(ObClient *self)
2279 {
2280     gulong state[2];
2281     glong old;
2282
2283     old = self->wmstate;
2284
2285     if (self->shaded || self->iconic ||
2286         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2287     {
2288         self->wmstate = IconicState;
2289     } else
2290         self->wmstate = NormalState;
2291
2292     if (old != self->wmstate) {
2293         PROP_MSG(self->window, kde_wm_change_state,
2294                  self->wmstate, 1, 0, 0);
2295
2296         state[0] = self->wmstate;
2297         state[1] = None;
2298         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2299     }
2300 }
2301
2302 static void client_change_state(ObClient *self)
2303 {
2304     gulong netstate[11];
2305     guint num;
2306
2307     num = 0;
2308     if (self->modal)
2309         netstate[num++] = prop_atoms.net_wm_state_modal;
2310     if (self->shaded)
2311         netstate[num++] = prop_atoms.net_wm_state_shaded;
2312     if (self->iconic)
2313         netstate[num++] = prop_atoms.net_wm_state_hidden;
2314     if (self->skip_taskbar)
2315         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2316     if (self->skip_pager)
2317         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2318     if (self->fullscreen)
2319         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2320     if (self->max_vert)
2321         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2322     if (self->max_horz)
2323         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2324     if (self->above)
2325         netstate[num++] = prop_atoms.net_wm_state_above;
2326     if (self->below)
2327         netstate[num++] = prop_atoms.net_wm_state_below;
2328     if (self->demands_attention)
2329         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2330     if (self->undecorated)
2331         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2332     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2333
2334     if (self->frame)
2335         frame_adjust_state(self->frame);
2336 }
2337
2338 ObClient *client_search_focus_tree(ObClient *self)
2339 {
2340     GSList *it;
2341     ObClient *ret;
2342
2343     for (it = self->transients; it; it = g_slist_next(it)) {
2344         if (client_focused(it->data)) return it->data;
2345         if ((ret = client_search_focus_tree(it->data))) return ret;
2346     }
2347     return NULL;
2348 }
2349
2350 ObClient *client_search_focus_tree_full(ObClient *self)
2351 {
2352     if (self->transient_for) {
2353         if (self->transient_for != OB_TRAN_GROUP) {
2354             return client_search_focus_tree_full(self->transient_for);
2355         } else {
2356             GSList *it;
2357
2358             for (it = self->group->members; it; it = g_slist_next(it)) {
2359                 if (it->data != self) {
2360                     ObClient *c = it->data;
2361
2362                     if (client_focused(c)) return c;
2363                     if ((c = client_search_focus_tree(it->data))) return c;
2364                 }
2365             }
2366         }
2367     }
2368
2369     /* this function checks the whole tree, the client_search_focus_tree
2370        does not, so we need to check this window */
2371     if (client_focused(self))
2372         return self;
2373     return client_search_focus_tree(self);
2374 }
2375
2376 gboolean client_has_parent(ObClient *self)
2377 {
2378     if (self->transient_for) {
2379         if (self->transient_for != OB_TRAN_GROUP) {
2380             if (client_normal(self->transient_for))
2381                 return TRUE;
2382         }
2383         else if (self->group) {
2384             GSList *it;
2385
2386             for (it = self->group->members; it; it = g_slist_next(it)) {
2387                 if (it->data != self && client_normal(it->data))
2388                     return TRUE;
2389             }
2390         }
2391     }
2392     return FALSE;
2393 }
2394
2395 static ObStackingLayer calc_layer(ObClient *self)
2396 {
2397     ObStackingLayer l;
2398
2399     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2400         l = OB_STACKING_LAYER_DESKTOP;
2401     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2402         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2403         else l = OB_STACKING_LAYER_ABOVE;
2404     }
2405     else if ((self->fullscreen ||
2406               /* No decorations and fills the monitor = oldskool fullscreen.
2407                  But not for maximized windows.
2408               */
2409               (self->decorations == 0 &&
2410                !(self->max_horz && self->max_vert) &&
2411                RECT_EQUAL(self->area,
2412                           *screen_physical_area_monitor
2413                           (client_monitor(self))))) &&
2414              (client_focused(self) || client_search_focus_tree(self)))
2415         l = OB_STACKING_LAYER_FULLSCREEN;
2416     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2417     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2418     else l = OB_STACKING_LAYER_NORMAL;
2419
2420     return l;
2421 }
2422
2423 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2424                                         ObStackingLayer min)
2425 {
2426     ObStackingLayer old, own;
2427     GSList *it;
2428
2429     old = self->layer;
2430     own = calc_layer(self);
2431     self->layer = MAX(own, min);
2432
2433     if (self->layer != old) {
2434         stacking_remove(CLIENT_AS_WINDOW(self));
2435         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2436     }
2437
2438     for (it = self->transients; it; it = g_slist_next(it))
2439         client_calc_layer_recursive(it->data, orig,
2440                                     self->layer);
2441 }
2442
2443 void client_calc_layer(ObClient *self)
2444 {
2445     ObClient *orig;
2446     GSList *it;
2447
2448     orig = self;
2449
2450     /* transients take on the layer of their parents */
2451     it = client_search_all_top_parents(self);
2452
2453     for (; it; it = g_slist_next(it))
2454         client_calc_layer_recursive(it->data, orig, 0);
2455 }
2456
2457 gboolean client_should_show(ObClient *self)
2458 {
2459     if (self->iconic)
2460         return FALSE;
2461     if (client_normal(self) && screen_showing_desktop)
2462         return FALSE;
2463     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2464         return TRUE;
2465
2466     return FALSE;
2467 }
2468
2469 gboolean client_show(ObClient *self)
2470 {
2471     gboolean show = FALSE;
2472
2473     if (client_should_show(self)) {
2474         frame_show(self->frame);
2475         show = TRUE;
2476
2477         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2478            it needs to be in IconicState. This includes when it is on another
2479            desktop!
2480         */
2481         client_change_wm_state(self);
2482     }
2483     return show;
2484 }
2485
2486 gboolean client_hide(ObClient *self)
2487 {
2488     gboolean hide = FALSE;
2489
2490     if (!client_should_show(self)) {
2491         if (self == focus_client) {
2492             /* if there is a grab going on, then we need to cancel it. if we
2493                move focus during the grab, applications will get
2494                NotifyWhileGrabbed events and ignore them !
2495
2496                actions should not rely on being able to move focus during an
2497                interactive grab.
2498             */
2499             event_cancel_all_key_grabs();
2500         }
2501
2502         frame_hide(self->frame);
2503         hide = TRUE;
2504
2505         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2506            it needs to be in IconicState. This includes when it is on another
2507            desktop!
2508         */
2509         client_change_wm_state(self);
2510     }
2511     return hide;
2512 }
2513
2514 void client_showhide(ObClient *self)
2515 {
2516     if (!client_show(self))
2517         client_hide(self);
2518 }
2519
2520 gboolean client_normal(ObClient *self) {
2521     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2522               self->type == OB_CLIENT_TYPE_DOCK ||
2523               self->type == OB_CLIENT_TYPE_SPLASH);
2524 }
2525
2526 gboolean client_helper(ObClient *self)
2527 {
2528     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2529             self->type == OB_CLIENT_TYPE_MENU ||
2530             self->type == OB_CLIENT_TYPE_TOOLBAR);
2531 }
2532
2533 gboolean client_mouse_focusable(ObClient *self)
2534 {
2535     return !(self->type == OB_CLIENT_TYPE_MENU ||
2536              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2537              self->type == OB_CLIENT_TYPE_SPLASH ||
2538              self->type == OB_CLIENT_TYPE_DOCK);
2539 }
2540
2541 gboolean client_enter_focusable(ObClient *self)
2542 {
2543     /* you can focus desktops but it shouldn't on enter */
2544     return (client_mouse_focusable(self) &&
2545             self->type != OB_CLIENT_TYPE_DESKTOP);
2546 }
2547
2548
2549 static void client_apply_startup_state(ObClient *self)
2550 {
2551     /* set the desktop hint, to make sure that it always exists */
2552     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2553
2554     /* these are in a carefully crafted order.. */
2555
2556     if (self->iconic) {
2557         self->iconic = FALSE;
2558         client_iconify(self, TRUE, FALSE, TRUE);
2559     }
2560     if (self->fullscreen) {
2561         self->fullscreen = FALSE;
2562         client_fullscreen(self, TRUE);
2563     }
2564     if (self->undecorated) {
2565         self->undecorated = FALSE;
2566         client_set_undecorated(self, TRUE);
2567     }
2568     if (self->shaded) {
2569         self->shaded = FALSE;
2570         client_shade(self, TRUE);
2571     }
2572     if (self->demands_attention) {
2573         self->demands_attention = FALSE;
2574         client_hilite(self, TRUE);
2575     }
2576
2577     if (self->max_vert && self->max_horz) {
2578         self->max_vert = self->max_horz = FALSE;
2579         client_maximize(self, TRUE, 0);
2580     } else if (self->max_vert) {
2581         self->max_vert = FALSE;
2582         client_maximize(self, TRUE, 2);
2583     } else if (self->max_horz) {
2584         self->max_horz = FALSE;
2585         client_maximize(self, TRUE, 1);
2586     }
2587
2588     /* nothing to do for the other states:
2589        skip_taskbar
2590        skip_pager
2591        modal
2592        above
2593        below
2594     */
2595 }
2596
2597 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2598 {
2599     /* these should be the current values. this is for when you're not moving,
2600        just resizing */
2601     g_assert(*x == self->area.x);
2602     g_assert(oldw == self->area.width);
2603
2604     /* horizontal */
2605     switch (self->gravity) {
2606     default:
2607     case NorthWestGravity:
2608     case WestGravity:
2609     case SouthWestGravity:
2610     case StaticGravity:
2611     case ForgetGravity:
2612         break;
2613     case NorthGravity:
2614     case CenterGravity:
2615     case SouthGravity:
2616         *x -= (neww - oldw) / 2;
2617         break;
2618     case NorthEastGravity:
2619     case EastGravity:
2620     case SouthEastGravity:
2621         *x -= neww - oldw;
2622         break;
2623     }
2624 }
2625
2626 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2627 {
2628     /* these should be the current values. this is for when you're not moving,
2629        just resizing */
2630     g_assert(*y == self->area.y);
2631     g_assert(oldh == self->area.height);
2632
2633     /* vertical */
2634     switch (self->gravity) {
2635     default:
2636     case NorthWestGravity:
2637     case NorthGravity:
2638     case NorthEastGravity:
2639     case StaticGravity:
2640     case ForgetGravity:
2641         break;
2642     case WestGravity:
2643     case CenterGravity:
2644     case EastGravity:
2645         *y -= (newh - oldh) / 2;
2646         break;
2647     case SouthWestGravity:
2648     case SouthGravity:
2649     case SouthEastGravity:
2650         *y -= newh - oldh;
2651         break;
2652     }
2653 }
2654
2655 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2656                           gint *logicalw, gint *logicalh,
2657                           gboolean user)
2658 {
2659     Rect desired_area = {*x, *y, *w, *h};
2660
2661     /* make the frame recalculate its dimentions n shit without changing
2662        anything visible for real, this way the constraints below can work with
2663        the updated frame dimensions. */
2664     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2665
2666     /* work within the prefered sizes given by the window */
2667     if (!(*w == self->area.width && *h == self->area.height)) {
2668         gint basew, baseh, minw, minh;
2669
2670         /* base size is substituted with min size if not specified */
2671         if (self->base_size.width || self->base_size.height) {
2672             basew = self->base_size.width;
2673             baseh = self->base_size.height;
2674         } else {
2675             basew = self->min_size.width;
2676             baseh = self->min_size.height;
2677         }
2678         /* min size is substituted with base size if not specified */
2679         if (self->min_size.width || self->min_size.height) {
2680             minw = self->min_size.width;
2681             minh = self->min_size.height;
2682         } else {
2683             minw = self->base_size.width;
2684             minh = self->base_size.height;
2685         }
2686
2687         /* if this is a user-requested resize, then check against min/max
2688            sizes */
2689
2690         /* smaller than min size or bigger than max size? */
2691         if (*w > self->max_size.width) *w = self->max_size.width;
2692         if (*w < minw) *w = minw;
2693         if (*h > self->max_size.height) *h = self->max_size.height;
2694         if (*h < minh) *h = minh;
2695
2696         *w -= basew;
2697         *h -= baseh;
2698
2699         /* keep to the increments */
2700         *w /= self->size_inc.width;
2701         *h /= self->size_inc.height;
2702
2703         /* you cannot resize to nothing */
2704         if (basew + *w < 1) *w = 1 - basew;
2705         if (baseh + *h < 1) *h = 1 - baseh;
2706
2707         /* save the logical size */
2708         *logicalw = self->size_inc.width > 1 ? *w : *w + basew;
2709         *logicalh = self->size_inc.height > 1 ? *h : *h + baseh;
2710
2711         *w *= self->size_inc.width;
2712         *h *= self->size_inc.height;
2713
2714         *w += basew;
2715         *h += baseh;
2716
2717         /* adjust the height to match the width for the aspect ratios.
2718            for this, min size is not substituted for base size ever. */
2719         *w -= self->base_size.width;
2720         *h -= self->base_size.height;
2721
2722         if (!self->fullscreen) {
2723             if (self->min_ratio)
2724                 if (*h * self->min_ratio > *w) {
2725                     *h = (gint)(*w / self->min_ratio);
2726
2727                     /* you cannot resize to nothing */
2728                     if (*h < 1) {
2729                         *h = 1;
2730                         *w = (gint)(*h * self->min_ratio);
2731                     }
2732                 }
2733             if (self->max_ratio)
2734                 if (*h * self->max_ratio < *w) {
2735                     *h = (gint)(*w / self->max_ratio);
2736
2737                     /* you cannot resize to nothing */
2738                     if (*h < 1) {
2739                         *h = 1;
2740                         *w = (gint)(*h * self->min_ratio);
2741                     }
2742                 }
2743         }
2744
2745         *w += self->base_size.width;
2746         *h += self->base_size.height;
2747     }
2748
2749     /* gets the frame's position */
2750     frame_client_gravity(self->frame, x, y, *w, *h);
2751
2752     /* these positions are frame positions, not client positions */
2753
2754     /* set the size and position if fullscreen */
2755     if (self->fullscreen) {
2756         Rect *a;
2757         guint i;
2758
2759         i = screen_find_monitor(&desired_area);
2760         a = screen_physical_area_monitor(i);
2761
2762         *x = a->x;
2763         *y = a->y;
2764         *w = a->width;
2765         *h = a->height;
2766
2767         user = FALSE; /* ignore if the client can't be moved/resized when it
2768                          is fullscreening */
2769     } else if (self->max_horz || self->max_vert) {
2770         Rect *a;
2771         guint i;
2772
2773         i = screen_find_monitor(&desired_area);
2774         a = screen_area_monitor(self->desktop, i);
2775
2776         /* set the size and position if maximized */
2777         if (self->max_horz) {
2778             *x = a->x;
2779             *w = a->width - self->frame->size.left - self->frame->size.right;
2780         }
2781         if (self->max_vert) {
2782             *y = a->y;
2783             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2784         }
2785
2786         user = FALSE; /* ignore if the client can't be moved/resized when it
2787                          is maximizing */
2788     }
2789
2790     /* gets the client's position */
2791     frame_frame_gravity(self->frame, x, y, *w, *h);
2792
2793     /* these override the above states! if you cant move you can't move! */
2794     if (user) {
2795         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2796             *x = self->area.x;
2797             *y = self->area.y;
2798         }
2799         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2800             *w = self->area.width;
2801             *h = self->area.height;
2802         }
2803     }
2804
2805     g_assert(*w > 0);
2806     g_assert(*h > 0);
2807 }
2808
2809
2810 void client_configure(ObClient *self, gint x, gint y, gint w, gint h, gint b,
2811                       gboolean user, gboolean final)
2812 {
2813     gint oldw, oldh;
2814     gboolean send_resize_client;
2815     gboolean moved = FALSE, resized = FALSE;
2816     gboolean fmoved, fresized;
2817     guint fdecor = self->frame->decorations;
2818     gboolean fhorz = self->frame->max_horz;
2819     gboolean fvert = self->frame->max_vert;
2820     gint logicalw, logicalh;
2821
2822     /* find the new x, y, width, and height (and logical size) */
2823     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2824
2825     /* set the logical size if things changed */
2826     if (!(w == self->area.width && h == self->area.height))
2827         SIZE_SET(self->logical_size, logicalw, logicalh);
2828
2829     /* figure out if we moved or resized or what */
2830     moved = x != self->area.x || y != self->area.y;
2831     resized = w != self->area.width || h != self->area.height ||
2832         b != self->border_width;
2833
2834     oldw = self->area.width;
2835     oldh = self->area.height;
2836     RECT_SET(self->area, x, y, w, h);
2837     self->border_width = b;
2838
2839     /* for app-requested resizes, always resize if 'resized' is true.
2840        for user-requested ones, only resize if final is true, or when
2841        resizing in redraw mode */
2842     send_resize_client = ((!user && resized) ||
2843                           (user && (final ||
2844                                     (resized && config_resize_redraw))));
2845
2846     /* if the client is enlarging, then resize the client before the frame */
2847     if (send_resize_client && (w > oldw || h > oldh)) {
2848         XWindowChanges changes;
2849         changes.x = -self->border_width;
2850         changes.y = -self->border_width;
2851         changes.width = MAX(w, oldw);
2852         changes.height = MAX(h, oldh);
2853         changes.border_width = self->border_width;
2854         XConfigureWindow(ob_display, self->window,
2855                          CWX|CWY|CWWidth|CWHeight|CWBorderWidth,
2856                          &changes);
2857         /* resize the plate to show the client padding color underneath */
2858         frame_adjust_client_area(self->frame);
2859     }
2860
2861     /* find the frame's dimensions and move/resize it */
2862     fmoved = moved;
2863     fresized = resized;
2864
2865     /* if decorations changed, then readjust everything for the frame */
2866     if (self->decorations != fdecor ||
2867         self->max_horz != fhorz || self->max_vert != fvert)
2868     {
2869         fmoved = fresized = TRUE;
2870     }
2871
2872     /* adjust the frame */
2873     if (fmoved || fresized)
2874         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2875
2876     if ((!user || (user && final)) && !resized)
2877     {
2878         XEvent event;
2879
2880         /* we have reset the client to 0 border width, so don't include
2881            it in these coords */
2882         POINT_SET(self->root_pos,
2883                   self->frame->area.x + self->frame->size.left -
2884                   self->border_width,
2885                   self->frame->area.y + self->frame->size.top -
2886                   self->border_width);
2887
2888         event.type = ConfigureNotify;
2889         event.xconfigure.display = ob_display;
2890         event.xconfigure.event = self->window;
2891         event.xconfigure.window = self->window;
2892
2893         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2894                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2895
2896         /* root window real coords */
2897         event.xconfigure.x = self->root_pos.x;
2898         event.xconfigure.y = self->root_pos.y;
2899         event.xconfigure.width = w;
2900         event.xconfigure.height = h;
2901         event.xconfigure.border_width = self->border_width;
2902         event.xconfigure.above = None;
2903         event.xconfigure.override_redirect = FALSE;
2904         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2905                    FALSE, StructureNotifyMask, &event);
2906     }
2907
2908     /* if the client is shrinking, then resize the frame before the client */
2909     if (send_resize_client && (w <= oldw && h <= oldh)) {
2910         /* resize the plate to show the client padding color underneath */
2911         frame_adjust_client_area(self->frame);
2912
2913         if (send_resize_client) {
2914             XWindowChanges changes;
2915             changes.x = -self->border_width;
2916             changes.y = -self->border_width;
2917             changes.width = w;
2918             changes.height = h;
2919             changes.border_width = self->border_width;
2920             XConfigureWindow(ob_display, self->window,
2921                              CWX|CWY|CWWidth|CWHeight|CWBorderWidth,
2922                              &changes);
2923         }
2924     }
2925
2926     XFlush(ob_display);
2927 }
2928
2929 void client_fullscreen(ObClient *self, gboolean fs)
2930 {
2931     gint x, y, w, h;
2932
2933     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2934         self->fullscreen == fs) return;                   /* already done */
2935
2936     self->fullscreen = fs;
2937     client_change_state(self); /* change the state hints on the client */
2938
2939     if (fs) {
2940         self->pre_fullscreen_area = self->area;
2941         /* if the window is maximized, its area isn't all that meaningful.
2942            save it's premax area instead. */
2943         if (self->max_horz) {
2944             self->pre_fullscreen_area.x = self->pre_max_area.x;
2945             self->pre_fullscreen_area.width = self->pre_max_area.width;
2946         }
2947         if (self->max_vert) {
2948             self->pre_fullscreen_area.y = self->pre_max_area.y;
2949             self->pre_fullscreen_area.height = self->pre_max_area.height;
2950         }
2951
2952         /* these will help configure_full figure out where to fullscreen
2953            the window */
2954         x = self->area.x;
2955         y = self->area.y;
2956         w = self->area.width;
2957         h = self->area.height;
2958     } else {
2959         g_assert(self->pre_fullscreen_area.width > 0 &&
2960                  self->pre_fullscreen_area.height > 0);
2961
2962         x = self->pre_fullscreen_area.x;
2963         y = self->pre_fullscreen_area.y;
2964         w = self->pre_fullscreen_area.width;
2965         h = self->pre_fullscreen_area.height;
2966         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
2967     }
2968
2969     client_setup_decor_and_functions(self);
2970
2971     client_move_resize(self, x, y, w, h);
2972
2973     /* and adjust our layer/stacking. do this after resizing the window,
2974        and applying decorations, because windows which fill the screen are
2975        considered "fullscreen" and it affects their layer */
2976     client_calc_layer(self);
2977
2978     if (fs) {
2979         /* try focus us when we go into fullscreen mode */
2980         client_focus(self);
2981     }
2982 }
2983
2984 static void client_iconify_recursive(ObClient *self,
2985                                      gboolean iconic, gboolean curdesk,
2986                                      gboolean hide_animation)
2987 {
2988     GSList *it;
2989     gboolean changed = FALSE;
2990
2991
2992     if (self->iconic != iconic) {
2993         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
2994                  self->window);
2995
2996         if (iconic) {
2997             /* don't let non-normal windows iconify along with their parents
2998                or whatever */
2999             if (client_normal(self)) {
3000                 self->iconic = iconic;
3001
3002                 /* update the focus lists.. iconic windows go to the bottom of
3003                    the list */
3004                 focus_order_to_bottom(self);
3005
3006                 changed = TRUE;
3007             }
3008         } else {
3009             self->iconic = iconic;
3010
3011             if (curdesk && self->desktop != screen_desktop &&
3012                 self->desktop != DESKTOP_ALL)
3013                 client_set_desktop(self, screen_desktop, FALSE);
3014
3015             /* this puts it after the current focused window */
3016             focus_order_remove(self);
3017             focus_order_add_new(self);
3018
3019             changed = TRUE;
3020         }
3021     }
3022
3023     if (changed) {
3024         client_change_state(self);
3025         if (config_animate_iconify && !hide_animation)
3026             frame_begin_iconify_animation(self->frame, iconic);
3027         /* do this after starting the animation so it doesn't flash */
3028         client_showhide(self);
3029     }
3030
3031     /* iconify all direct transients, and deiconify all transients
3032        (non-direct too) */
3033     for (it = self->transients; it; it = g_slist_next(it))
3034         if (it->data != self)
3035             if (client_is_direct_child(self, it->data) || !iconic)
3036                 client_iconify_recursive(it->data, iconic, curdesk,
3037                                          hide_animation);
3038 }
3039
3040 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3041                     gboolean hide_animation)
3042 {
3043     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3044         /* move up the transient chain as far as possible first */
3045         self = client_search_top_normal_parent(self);
3046         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3047     }
3048 }
3049
3050 void client_maximize(ObClient *self, gboolean max, gint dir)
3051 {
3052     gint x, y, w, h;
3053
3054     g_assert(dir == 0 || dir == 1 || dir == 2);
3055     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3056
3057     /* check if already done */
3058     if (max) {
3059         if (dir == 0 && self->max_horz && self->max_vert) return;
3060         if (dir == 1 && self->max_horz) return;
3061         if (dir == 2 && self->max_vert) return;
3062     } else {
3063         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3064         if (dir == 1 && !self->max_horz) return;
3065         if (dir == 2 && !self->max_vert) return;
3066     }
3067
3068     /* these will help configure_full figure out which screen to fill with
3069        the window */
3070     x = self->area.x;
3071     y = self->area.y;
3072     w = self->area.width;
3073     h = self->area.height;
3074
3075     if (max) {
3076         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3077             RECT_SET(self->pre_max_area,
3078                      self->area.x, self->pre_max_area.y,
3079                      self->area.width, self->pre_max_area.height);
3080         }
3081         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3082             RECT_SET(self->pre_max_area,
3083                      self->pre_max_area.x, self->area.y,
3084                      self->pre_max_area.width, self->area.height);
3085         }
3086     } else {
3087         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3088             g_assert(self->pre_max_area.width > 0);
3089
3090             x = self->pre_max_area.x;
3091             w = self->pre_max_area.width;
3092
3093             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3094                      0, self->pre_max_area.height);
3095         }
3096         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3097             g_assert(self->pre_max_area.height > 0);
3098
3099             y = self->pre_max_area.y;
3100             h = self->pre_max_area.height;
3101
3102             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3103                      self->pre_max_area.width, 0);
3104         }
3105     }
3106
3107     if (dir == 0 || dir == 1) /* horz */
3108         self->max_horz = max;
3109     if (dir == 0 || dir == 2) /* vert */
3110         self->max_vert = max;
3111
3112     client_change_state(self); /* change the state hints on the client */
3113
3114     client_setup_decor_and_functions(self);
3115
3116     client_move_resize(self, x, y, w, h);
3117 }
3118
3119 void client_shade(ObClient *self, gboolean shade)
3120 {
3121     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3122          shade) ||                         /* can't shade */
3123         self->shaded == shade) return;     /* already done */
3124
3125     self->shaded = shade;
3126     client_change_state(self);
3127     client_change_wm_state(self); /* the window is being hidden/shown */
3128     /* resize the frame to just the titlebar */
3129     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3130 }
3131
3132 void client_close(ObClient *self)
3133 {
3134     XEvent ce;
3135
3136     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3137
3138     /* in the case that the client provides no means to requesting that it
3139        close, we just kill it */
3140     if (!self->delete_window)
3141         client_kill(self);
3142
3143     /*
3144       XXX: itd be cool to do timeouts and shit here for killing the client's
3145       process off
3146       like... if the window is around after 5 seconds, then the close button
3147       turns a nice red, and if this function is called again, the client is
3148       explicitly killed.
3149     */
3150
3151     ce.xclient.type = ClientMessage;
3152     ce.xclient.message_type =  prop_atoms.wm_protocols;
3153     ce.xclient.display = ob_display;
3154     ce.xclient.window = self->window;
3155     ce.xclient.format = 32;
3156     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3157     ce.xclient.data.l[1] = event_curtime;
3158     ce.xclient.data.l[2] = 0l;
3159     ce.xclient.data.l[3] = 0l;
3160     ce.xclient.data.l[4] = 0l;
3161     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3162 }
3163
3164 void client_kill(ObClient *self)
3165 {
3166     XKillClient(ob_display, self->window);
3167 }
3168
3169 void client_hilite(ObClient *self, gboolean hilite)
3170 {
3171     if (self->demands_attention == hilite)
3172         return; /* no change */
3173
3174     /* don't allow focused windows to hilite */
3175     self->demands_attention = hilite && !client_focused(self);
3176     if (self->frame != NULL) { /* if we're mapping, just set the state */
3177         if (self->demands_attention)
3178             frame_flash_start(self->frame);
3179         else
3180             frame_flash_stop(self->frame);
3181         client_change_state(self);
3182     }
3183 }
3184
3185 void client_set_desktop_recursive(ObClient *self,
3186                                   guint target,
3187                                   gboolean donthide)
3188 {
3189     guint old;
3190     GSList *it;
3191
3192     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3193
3194         ob_debug("Setting desktop %u\n", target+1);
3195
3196         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3197
3198         old = self->desktop;
3199         self->desktop = target;
3200         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3201         /* the frame can display the current desktop state */
3202         frame_adjust_state(self->frame);
3203         /* 'move' the window to the new desktop */
3204         if (!donthide)
3205             client_showhide(self);
3206         /* raise if it was not already on the desktop */
3207         if (old != DESKTOP_ALL)
3208             stacking_raise(CLIENT_AS_WINDOW(self));
3209         if (STRUT_EXISTS(self->strut))
3210             screen_update_areas();
3211     }
3212
3213     /* move all transients */
3214     for (it = self->transients; it; it = g_slist_next(it))
3215         if (it->data != self)
3216             if (client_is_direct_child(self, it->data))
3217                 client_set_desktop_recursive(it->data, target, donthide);
3218 }
3219
3220 void client_set_desktop(ObClient *self, guint target,
3221                         gboolean donthide)
3222 {
3223     self = client_search_top_normal_parent(self);
3224     client_set_desktop_recursive(self, target, donthide);
3225 }
3226
3227 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3228 {
3229     while (child != parent &&
3230            child->transient_for && child->transient_for != OB_TRAN_GROUP)
3231         child = child->transient_for;
3232     return child == parent;
3233 }
3234
3235 ObClient *client_search_modal_child(ObClient *self)
3236 {
3237     GSList *it;
3238     ObClient *ret;
3239
3240     for (it = self->transients; it; it = g_slist_next(it)) {
3241         ObClient *c = it->data;
3242         if ((ret = client_search_modal_child(c))) return ret;
3243         if (c->modal) return c;
3244     }
3245     return NULL;
3246 }
3247
3248 gboolean client_validate(ObClient *self)
3249 {
3250     XEvent e;
3251
3252     XSync(ob_display, FALSE); /* get all events on the server */
3253
3254     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3255         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3256         XPutBackEvent(ob_display, &e);
3257         return FALSE;
3258     }
3259
3260     return TRUE;
3261 }
3262
3263 void client_set_wm_state(ObClient *self, glong state)
3264 {
3265     if (state == self->wmstate) return; /* no change */
3266
3267     switch (state) {
3268     case IconicState:
3269         client_iconify(self, TRUE, TRUE, FALSE);
3270         break;
3271     case NormalState:
3272         client_iconify(self, FALSE, TRUE, FALSE);
3273         break;
3274     }
3275 }
3276
3277 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3278 {
3279     gboolean shaded = self->shaded;
3280     gboolean fullscreen = self->fullscreen;
3281     gboolean undecorated = self->undecorated;
3282     gboolean max_horz = self->max_horz;
3283     gboolean max_vert = self->max_vert;
3284     gboolean modal = self->modal;
3285     gboolean iconic = self->iconic;
3286     gboolean demands_attention = self->demands_attention;
3287     gboolean above = self->above;
3288     gboolean below = self->below;
3289     gint i;
3290
3291     if (!(action == prop_atoms.net_wm_state_add ||
3292           action == prop_atoms.net_wm_state_remove ||
3293           action == prop_atoms.net_wm_state_toggle))
3294         /* an invalid action was passed to the client message, ignore it */
3295         return;
3296
3297     for (i = 0; i < 2; ++i) {
3298         Atom state = i == 0 ? data1 : data2;
3299
3300         if (!state) continue;
3301
3302         /* if toggling, then pick whether we're adding or removing */
3303         if (action == prop_atoms.net_wm_state_toggle) {
3304             if (state == prop_atoms.net_wm_state_modal)
3305                 action = modal ? prop_atoms.net_wm_state_remove :
3306                     prop_atoms.net_wm_state_add;
3307             else if (state == prop_atoms.net_wm_state_maximized_vert)
3308                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3309                     prop_atoms.net_wm_state_add;
3310             else if (state == prop_atoms.net_wm_state_maximized_horz)
3311                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3312                     prop_atoms.net_wm_state_add;
3313             else if (state == prop_atoms.net_wm_state_shaded)
3314                 action = shaded ? prop_atoms.net_wm_state_remove :
3315                     prop_atoms.net_wm_state_add;
3316             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3317                 action = self->skip_taskbar ?
3318                     prop_atoms.net_wm_state_remove :
3319                     prop_atoms.net_wm_state_add;
3320             else if (state == prop_atoms.net_wm_state_skip_pager)
3321                 action = self->skip_pager ?
3322                     prop_atoms.net_wm_state_remove :
3323                     prop_atoms.net_wm_state_add;
3324             else if (state == prop_atoms.net_wm_state_hidden)
3325                 action = self->iconic ?
3326                     prop_atoms.net_wm_state_remove :
3327                     prop_atoms.net_wm_state_add;
3328             else if (state == prop_atoms.net_wm_state_fullscreen)
3329                 action = fullscreen ?
3330                     prop_atoms.net_wm_state_remove :
3331                     prop_atoms.net_wm_state_add;
3332             else if (state == prop_atoms.net_wm_state_above)
3333                 action = self->above ? prop_atoms.net_wm_state_remove :
3334                     prop_atoms.net_wm_state_add;
3335             else if (state == prop_atoms.net_wm_state_below)
3336                 action = self->below ? prop_atoms.net_wm_state_remove :
3337                     prop_atoms.net_wm_state_add;
3338             else if (state == prop_atoms.net_wm_state_demands_attention)
3339                 action = self->demands_attention ?
3340                     prop_atoms.net_wm_state_remove :
3341                     prop_atoms.net_wm_state_add;
3342             else if (state == prop_atoms.ob_wm_state_undecorated)
3343                 action = undecorated ? prop_atoms.net_wm_state_remove :
3344                     prop_atoms.net_wm_state_add;
3345         }
3346
3347         if (action == prop_atoms.net_wm_state_add) {
3348             if (state == prop_atoms.net_wm_state_modal) {
3349                 modal = TRUE;
3350             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3351                 max_vert = TRUE;
3352             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3353                 max_horz = TRUE;
3354             } else if (state == prop_atoms.net_wm_state_shaded) {
3355                 shaded = TRUE;
3356             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3357                 self->skip_taskbar = TRUE;
3358             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3359                 self->skip_pager = TRUE;
3360             } else if (state == prop_atoms.net_wm_state_hidden) {
3361                 iconic = TRUE;
3362             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3363                 fullscreen = TRUE;
3364             } else if (state == prop_atoms.net_wm_state_above) {
3365                 above = TRUE;
3366                 below = FALSE;
3367             } else if (state == prop_atoms.net_wm_state_below) {
3368                 above = FALSE;
3369                 below = TRUE;
3370             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3371                 demands_attention = TRUE;
3372             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3373                 undecorated = TRUE;
3374             }
3375
3376         } else { /* action == prop_atoms.net_wm_state_remove */
3377             if (state == prop_atoms.net_wm_state_modal) {
3378                 modal = FALSE;
3379             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3380                 max_vert = FALSE;
3381             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3382                 max_horz = FALSE;
3383             } else if (state == prop_atoms.net_wm_state_shaded) {
3384                 shaded = FALSE;
3385             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3386                 self->skip_taskbar = FALSE;
3387             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3388                 self->skip_pager = FALSE;
3389             } else if (state == prop_atoms.net_wm_state_hidden) {
3390                 iconic = FALSE;
3391             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3392                 fullscreen = FALSE;
3393             } else if (state == prop_atoms.net_wm_state_above) {
3394                 above = FALSE;
3395             } else if (state == prop_atoms.net_wm_state_below) {
3396                 below = FALSE;
3397             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3398                 demands_attention = FALSE;
3399             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3400                 undecorated = FALSE;
3401             }
3402         }
3403     }
3404
3405     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3406         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3407             /* toggling both */
3408             if (max_horz == max_vert) { /* both going the same way */
3409                 client_maximize(self, max_horz, 0);
3410             } else {
3411                 client_maximize(self, max_horz, 1);
3412                 client_maximize(self, max_vert, 2);
3413             }
3414         } else {
3415             /* toggling one */
3416             if (max_horz != self->max_horz)
3417                 client_maximize(self, max_horz, 1);
3418             else
3419                 client_maximize(self, max_vert, 2);
3420         }
3421     }
3422     /* change fullscreen state before shading, as it will affect if the window
3423        can shade or not */
3424     if (fullscreen != self->fullscreen)
3425         client_fullscreen(self, fullscreen);
3426     if (shaded != self->shaded)
3427         client_shade(self, shaded);
3428     if (undecorated != self->undecorated)
3429         client_set_undecorated(self, undecorated);
3430     if (above != self->above || below != self->below) {
3431         self->above = above;
3432         self->below = below;
3433         client_calc_layer(self);
3434     }
3435
3436     if (modal != self->modal) {
3437         self->modal = modal;
3438         /* when a window changes modality, then its stacking order with its
3439            transients needs to change */
3440         stacking_raise(CLIENT_AS_WINDOW(self));
3441
3442         /* it also may get focused. if something is focused that shouldn't
3443            be focused anymore, then move the focus */
3444         if (focus_client && client_focus_target(focus_client) != focus_client)
3445             client_focus(focus_client);
3446     }
3447
3448     if (iconic != self->iconic)
3449         client_iconify(self, iconic, FALSE, FALSE);
3450
3451     if (demands_attention != self->demands_attention)
3452         client_hilite(self, demands_attention);
3453
3454     client_change_state(self); /* change the hint to reflect these changes */
3455 }
3456
3457 ObClient *client_focus_target(ObClient *self)
3458 {
3459     ObClient *child = NULL;
3460
3461     child = client_search_modal_child(self);
3462     if (child) return child;
3463     return self;
3464 }
3465
3466 gboolean client_can_focus(ObClient *self)
3467 {
3468     /* choose the correct target */
3469     self = client_focus_target(self);
3470
3471     if (!self->frame->visible)
3472         return FALSE;
3473
3474     if (!(self->can_focus || self->focus_notify))
3475         return FALSE;
3476
3477     return TRUE;
3478 }
3479
3480 gboolean client_focus(ObClient *self)
3481 {
3482     /* we might not focus this window, so if we have modal children which would
3483        be focused instead, bring them to this desktop */
3484     client_bring_modal_windows(self);
3485
3486     /* choose the correct target */
3487     self = client_focus_target(self);
3488
3489     if (!client_can_focus(self)) {
3490         if (!self->frame->visible) {
3491             /* update the focus lists */
3492             focus_order_to_top(self);
3493         }
3494         return FALSE;
3495     }
3496
3497     ob_debug_type(OB_DEBUG_FOCUS,
3498                   "Focusing client \"%s\" (0x%x) at time %u\n",
3499                   self->title, self->window, event_curtime);
3500
3501     /* if there is a grab going on, then we need to cancel it. if we move
3502        focus during the grab, applications will get NotifyWhileGrabbed events
3503        and ignore them !
3504
3505        actions should not rely on being able to move focus during an
3506        interactive grab.
3507     */
3508     event_cancel_all_key_grabs();
3509
3510     xerror_set_ignore(TRUE);
3511     xerror_occured = FALSE;
3512
3513     if (self->can_focus) {
3514         /* This can cause a BadMatch error with CurrentTime, or if an app
3515            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3516         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3517                        event_curtime);
3518     }
3519
3520     if (self->focus_notify) {
3521         XEvent ce;
3522         ce.xclient.type = ClientMessage;
3523         ce.xclient.message_type = prop_atoms.wm_protocols;
3524         ce.xclient.display = ob_display;
3525         ce.xclient.window = self->window;
3526         ce.xclient.format = 32;
3527         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3528         ce.xclient.data.l[1] = event_curtime;
3529         ce.xclient.data.l[2] = 0l;
3530         ce.xclient.data.l[3] = 0l;
3531         ce.xclient.data.l[4] = 0l;
3532         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3533     }
3534
3535     xerror_set_ignore(FALSE);
3536
3537     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3538     return !xerror_occured;
3539 }
3540
3541 /*! Present the client to the user.
3542   @param raise If the client should be raised or not. You should only set
3543                raise to false if you don't care if the window is completely
3544                hidden.
3545 */
3546 static void client_present(ObClient *self, gboolean here, gboolean raise)
3547 {
3548     /* if using focus_delay, stop the timer now so that focus doesn't
3549        go moving on us */
3550     event_halt_focus_delay();
3551
3552     if (client_normal(self) && screen_showing_desktop)
3553         screen_show_desktop(FALSE, self);
3554     if (self->iconic)
3555         client_iconify(self, FALSE, here, FALSE);
3556     if (self->desktop != DESKTOP_ALL &&
3557         self->desktop != screen_desktop)
3558     {
3559         if (here)
3560             client_set_desktop(self, screen_desktop, FALSE);
3561         else
3562             screen_set_desktop(self->desktop, FALSE);
3563     } else if (!self->frame->visible)
3564         /* if its not visible for other reasons, then don't mess
3565            with it */
3566         return;
3567     if (self->shaded)
3568         client_shade(self, FALSE);
3569     if (raise)
3570         stacking_raise(CLIENT_AS_WINDOW(self));
3571
3572     client_focus(self);
3573 }
3574
3575 void client_activate(ObClient *self, gboolean here, gboolean user)
3576 {
3577     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3578     gboolean allow = FALSE;
3579
3580     /* if the request came from the user, or if nothing is focused, then grant
3581        the request.
3582        if the currently focused app doesn't set a user_time, then it can't
3583        benefit from any focus stealing prevention.
3584     */
3585     if (user || !focus_client || !last_time)
3586         allow = TRUE;
3587     /* otherwise, if they didn't give a time stamp or if it is too old, they
3588        don't get focus */
3589     else
3590         allow = event_curtime && event_time_after(event_curtime, last_time);
3591
3592     ob_debug_type(OB_DEBUG_FOCUS,
3593                   "Want to activate window 0x%x with time %u (last time %u), "
3594                   "source=%s allowing? %d\n",
3595                   self->window, event_curtime, last_time,
3596                   (user ? "user" : "application"), allow);
3597
3598     if (allow)
3599         client_present(self, here, TRUE);
3600     else
3601         /* don't focus it but tell the user it wants attention */
3602         client_hilite(self, TRUE);
3603 }
3604
3605 static void client_bring_windows_recursive(ObClient *self,
3606                                            guint desktop,
3607                                            gboolean helpers,
3608                                            gboolean modals)
3609 {
3610     GSList *it;
3611
3612     for (it = self->transients; it; it = g_slist_next(it))
3613         client_bring_windows_recursive(it->data, desktop, helpers, modals);
3614
3615     if (((helpers && client_helper(self)) ||
3616          (modals && self->modal))&&
3617         self->desktop != desktop && self->desktop != DESKTOP_ALL)
3618     {
3619         client_set_desktop(self, desktop, FALSE);
3620     }
3621 }
3622
3623 void client_bring_helper_windows(ObClient *self)
3624 {
3625     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE);
3626 }
3627
3628 void client_bring_modal_windows(ObClient *self)
3629 {
3630     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE);
3631 }
3632
3633 gboolean client_focused(ObClient *self)
3634 {
3635     return self == focus_client;
3636 }
3637
3638 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3639 {
3640     guint i;
3641     gulong min_diff, min_i;
3642
3643     if (!self->nicons) {
3644         ObClientIcon *parent = NULL;
3645
3646         if (self->transient_for) {
3647             if (self->transient_for != OB_TRAN_GROUP)
3648                 parent = client_icon_recursive(self->transient_for, w, h);
3649             else {
3650                 GSList *it;
3651                 for (it = self->group->members; it; it = g_slist_next(it)) {
3652                     ObClient *c = it->data;
3653                     if (c != self && !c->transient_for) {
3654                         if ((parent = client_icon_recursive(c, w, h)))
3655                             break;
3656                     }
3657                 }
3658             }
3659         }
3660
3661         return parent;
3662     }
3663
3664     /* some kind of crappy approximation to find the icon closest in size to
3665        what we requested, but icons are generally all the same ratio as
3666        eachother so it's good enough. */
3667
3668     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3669     min_i = 0;
3670
3671     for (i = 1; i < self->nicons; ++i) {
3672         gulong diff;
3673
3674         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3675         if (diff < min_diff) {
3676             min_diff = diff;
3677             min_i = i;
3678         }
3679     }
3680     return &self->icons[min_i];
3681 }
3682
3683 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3684 {
3685     ObClientIcon *ret;
3686     static ObClientIcon deficon;
3687
3688     if (!(ret = client_icon_recursive(self, w, h))) {
3689         deficon.width = deficon.height = 48;
3690         deficon.data = ob_rr_theme->def_win_icon;
3691         ret = &deficon;
3692     }
3693     return ret;
3694 }
3695
3696 void client_set_layer(ObClient *self, gint layer)
3697 {
3698     if (layer < 0) {
3699         self->below = TRUE;
3700         self->above = FALSE;
3701     } else if (layer == 0) {
3702         self->below = self->above = FALSE;
3703     } else {
3704         self->below = FALSE;
3705         self->above = TRUE;
3706     }
3707     client_calc_layer(self);
3708     client_change_state(self); /* reflect this in the state hints */
3709 }
3710
3711 void client_set_undecorated(ObClient *self, gboolean undecorated)
3712 {
3713     if (self->undecorated != undecorated &&
3714         /* don't let it undecorate if the function is missing, but let
3715            it redecorate */
3716         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3717     {
3718         self->undecorated = undecorated;
3719         client_setup_decor_and_functions(self);
3720         client_reconfigure(self); /* show the lack of decorations */
3721         client_change_state(self); /* reflect this in the state hints */
3722     }
3723 }
3724
3725 guint client_monitor(ObClient *self)
3726 {
3727     return screen_find_monitor(&self->frame->area);
3728 }
3729
3730 ObClient *client_search_top_normal_parent(ObClient *self)
3731 {
3732     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3733            client_normal(self->transient_for))
3734         self = self->transient_for;
3735     return self;
3736 }
3737
3738 static GSList *client_search_all_top_parents_internal(ObClient *self,
3739                                                       gboolean bylayer,
3740                                                       ObStackingLayer layer)
3741 {
3742     GSList *ret = NULL;
3743
3744     /* move up the direct transient chain as far as possible */
3745     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3746            (!bylayer || self->transient_for->layer == layer) &&
3747            client_normal(self->transient_for))
3748         self = self->transient_for;
3749
3750     if (!self->transient_for)
3751         ret = g_slist_prepend(ret, self);
3752     else {
3753             GSList *it;
3754
3755             g_assert(self->group);
3756
3757             for (it = self->group->members; it; it = g_slist_next(it)) {
3758                 ObClient *c = it->data;
3759
3760                 if (!c->transient_for && client_normal(c) &&
3761                     (!bylayer || c->layer == layer))
3762                 {
3763                     ret = g_slist_prepend(ret, c);
3764                 }
3765             }
3766
3767             if (ret == NULL) /* no group parents */
3768                 ret = g_slist_prepend(ret, self);
3769     }
3770
3771     return ret;
3772 }
3773
3774 GSList *client_search_all_top_parents(ObClient *self)
3775 {
3776     return client_search_all_top_parents_internal(self, FALSE, 0);
3777 }
3778
3779 GSList *client_search_all_top_parents_layer(ObClient *self)
3780 {
3781     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3782 }
3783
3784 ObClient *client_search_focus_parent(ObClient *self)
3785 {
3786     if (self->transient_for) {
3787         if (self->transient_for != OB_TRAN_GROUP) {
3788             if (client_focused(self->transient_for))
3789                 return self->transient_for;
3790         } else {
3791             GSList *it;
3792
3793             for (it = self->group->members; it; it = g_slist_next(it)) {
3794                 ObClient *c = it->data;
3795
3796                 /* checking transient_for prevents infinate loops! */
3797                 if (c != self && !c->transient_for)
3798                     if (client_focused(c))
3799                         return c;
3800             }
3801         }
3802     }
3803
3804     return NULL;
3805 }
3806
3807 ObClient *client_search_parent(ObClient *self, ObClient *search)
3808 {
3809     if (self->transient_for) {
3810         if (self->transient_for != OB_TRAN_GROUP) {
3811             if (self->transient_for == search)
3812                 return search;
3813         } else {
3814             GSList *it;
3815
3816             for (it = self->group->members; it; it = g_slist_next(it)) {
3817                 ObClient *c = it->data;
3818
3819                 /* checking transient_for prevents infinate loops! */
3820                 if (c != self && !c->transient_for)
3821                     if (c == search)
3822                         return search;
3823             }
3824         }
3825     }
3826
3827     return NULL;
3828 }
3829
3830 ObClient *client_search_transient(ObClient *self, ObClient *search)
3831 {
3832     GSList *sit;
3833
3834     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3835         if (sit->data == search)
3836             return search;
3837         if (client_search_transient(sit->data, search))
3838             return search;
3839     }
3840     return NULL;
3841 }
3842
3843 #define WANT_EDGE(cur, c) \
3844             if(cur == c)                                                      \
3845                 continue;                                                     \
3846             if(!client_normal(cur))                                           \
3847                 continue;                                                     \
3848             if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL) \
3849                 continue;                                                     \
3850             if(cur->iconic)                                                   \
3851                 continue;
3852
3853 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3854             if ((his_edge_start >= my_edge_start && \
3855                  his_edge_start <= my_edge_end) ||  \
3856                 (my_edge_start >= his_edge_start && \
3857                  my_edge_start <= his_edge_end))    \
3858                 dest = his_offset;
3859
3860 /* finds the nearest edge in the given direction from the current client
3861  * note to self: the edge is the -frame- edge (the actual one), not the
3862  * client edge.
3863  */
3864 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3865 {
3866     gint dest, monitor_dest;
3867     gint my_edge_start, my_edge_end, my_offset;
3868     GList *it;
3869     Rect *a, *monitor;
3870
3871     if(!client_list)
3872         return -1;
3873
3874     a = screen_area(c->desktop);
3875     monitor = screen_area_monitor(c->desktop, client_monitor(c));
3876
3877     switch(dir) {
3878     case OB_DIRECTION_NORTH:
3879         my_edge_start = c->frame->area.x;
3880         my_edge_end = c->frame->area.x + c->frame->area.width;
3881         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3882
3883         /* default: top of screen */
3884         dest = a->y + (hang ? c->frame->area.height : 0);
3885         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3886         /* if the monitor edge comes before the screen edge, */
3887         /* use that as the destination instead. (For xinerama) */
3888         if (monitor_dest != dest && my_offset > monitor_dest)
3889             dest = monitor_dest;
3890
3891         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3892             gint his_edge_start, his_edge_end, his_offset;
3893             ObClient *cur = it->data;
3894
3895             WANT_EDGE(cur, c)
3896
3897             his_edge_start = cur->frame->area.x;
3898             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3899             his_offset = cur->frame->area.y +
3900                          (hang ? 0 : cur->frame->area.height);
3901
3902             if(his_offset + 1 > my_offset)
3903                 continue;
3904
3905             if(his_offset < dest)
3906                 continue;
3907
3908             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3909         }
3910         break;
3911     case OB_DIRECTION_SOUTH:
3912         my_edge_start = c->frame->area.x;
3913         my_edge_end = c->frame->area.x + c->frame->area.width;
3914         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3915
3916         /* default: bottom of screen */
3917         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3918         monitor_dest = monitor->y + monitor->height -
3919                        (hang ? c->frame->area.height : 0);
3920         /* if the monitor edge comes before the screen edge, */
3921         /* use that as the destination instead. (For xinerama) */
3922         if (monitor_dest != dest && my_offset < monitor_dest)
3923             dest = monitor_dest;
3924
3925         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3926             gint his_edge_start, his_edge_end, his_offset;
3927             ObClient *cur = it->data;
3928
3929             WANT_EDGE(cur, c)
3930
3931             his_edge_start = cur->frame->area.x;
3932             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3933             his_offset = cur->frame->area.y +
3934                          (hang ? cur->frame->area.height : 0);
3935
3936
3937             if(his_offset - 1 < my_offset)
3938                 continue;
3939
3940             if(his_offset > dest)
3941                 continue;
3942
3943             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3944         }
3945         break;
3946     case OB_DIRECTION_WEST:
3947         my_edge_start = c->frame->area.y;
3948         my_edge_end = c->frame->area.y + c->frame->area.height;
3949         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3950
3951         /* default: leftmost egde of screen */
3952         dest = a->x + (hang ? c->frame->area.width : 0);
3953         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3954         /* if the monitor edge comes before the screen edge, */
3955         /* use that as the destination instead. (For xinerama) */
3956         if (monitor_dest != dest && my_offset > monitor_dest)
3957             dest = monitor_dest;
3958
3959         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3960             gint his_edge_start, his_edge_end, his_offset;
3961             ObClient *cur = it->data;
3962
3963             WANT_EDGE(cur, c)
3964
3965             his_edge_start = cur->frame->area.y;
3966             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3967             his_offset = cur->frame->area.x +
3968                          (hang ? 0 : cur->frame->area.width);
3969
3970             if(his_offset + 1 > my_offset)
3971                 continue;
3972
3973             if(his_offset < dest)
3974                 continue;
3975
3976             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3977         }
3978        break;
3979     case OB_DIRECTION_EAST:
3980         my_edge_start = c->frame->area.y;
3981         my_edge_end = c->frame->area.y + c->frame->area.height;
3982         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3983
3984         /* default: rightmost edge of screen */
3985         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3986         monitor_dest = monitor->x + monitor->width -
3987                        (hang ? c->frame->area.width : 0);
3988         /* if the monitor edge comes before the screen edge, */
3989         /* use that as the destination instead. (For xinerama) */
3990         if (monitor_dest != dest && my_offset < monitor_dest)
3991             dest = monitor_dest;
3992
3993         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3994             gint his_edge_start, his_edge_end, his_offset;
3995             ObClient *cur = it->data;
3996
3997             WANT_EDGE(cur, c)
3998
3999             his_edge_start = cur->frame->area.y;
4000             his_edge_end = cur->frame->area.y + cur->frame->area.height;
4001             his_offset = cur->frame->area.x +
4002                          (hang ? cur->frame->area.width : 0);
4003
4004             if(his_offset - 1 < my_offset)
4005                 continue;
4006
4007             if(his_offset > dest)
4008                 continue;
4009
4010             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4011         }
4012         break;
4013     case OB_DIRECTION_NORTHEAST:
4014     case OB_DIRECTION_SOUTHEAST:
4015     case OB_DIRECTION_NORTHWEST:
4016     case OB_DIRECTION_SOUTHWEST:
4017         /* not implemented */
4018     default:
4019         g_assert_not_reached();
4020         dest = 0; /* suppress warning */
4021     }
4022     return dest;
4023 }
4024
4025 ObClient* client_under_pointer()
4026 {
4027     gint x, y;
4028     GList *it;
4029     ObClient *ret = NULL;
4030
4031     if (screen_pointer_pos(&x, &y)) {
4032         for (it = stacking_list; it; it = g_list_next(it)) {
4033             if (WINDOW_IS_CLIENT(it->data)) {
4034                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4035                 if (c->frame->visible &&
4036                     /* ignore all animating windows */
4037                     !frame_iconify_animating(c->frame) &&
4038                     RECT_CONTAINS(c->frame->area, x, y))
4039                 {
4040                     ret = c;
4041                     break;
4042                 }
4043             }
4044         }
4045     }
4046     return ret;
4047 }
4048
4049 gboolean client_has_group_siblings(ObClient *self)
4050 {
4051     return self->group && self->group->members->next;
4052 }