openbox/client.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    client.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "client.h"
  21 #include "debug.h"
  22 #include "startupnotify.h"
  23 #include "dock.h"
  24 #include "xerror.h"
  25 #include "screen.h"
  26 #include "moveresize.h"
  27 #include "place.h"
  28 #include "prop.h"
  29 #include "extensions.h"
  30 #include "frame.h"
  31 #include "session.h"
  32 #include "event.h"
  33 #include "grab.h"
  34 #include "focus.h"
  35 #include "propwin.h"
  36 #include "stacking.h"
  37 #include "openbox.h"
  38 #include "group.h"
  39 #include "config.h"
  40 #include "menuframe.h"
  41 #include "keyboard.h"
  42 #include "mouse.h"
  43 #include "render/render.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 #endif
  48
  49 #include <glib.h>
  50 #include <X11/Xutil.h>
  51
  52 /*! The event mask to grab on client windows */
  53 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  54                           ColormapChangeMask)
  55
  56 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  57                                 ButtonMotionMask)
  58
  59 typedef struct
  60 {
  61     ObClientCallback func;
  62     gpointer data;
  63 } ClientCallback;
  64
  65 GList            *client_list          = NULL;
  66
  67 static GSList *client_destroy_notifies = NULL;
  68
  69 static void client_get_all(ObClient *self, gboolean real);
  70 static void client_get_startup_id(ObClient *self);
  71 static void client_get_session_ids(ObClient *self);
  72 static void client_get_area(ObClient *self);
  73 static void client_get_desktop(ObClient *self);
  74 static void client_get_state(ObClient *self);
  75 static void client_get_shaped(ObClient *self);
  76 static void client_get_mwm_hints(ObClient *self);
  77 static void client_get_colormap(ObClient *self);
  78 static void client_change_allowed_actions(ObClient *self);
  79 static void client_change_state(ObClient *self);
  80 static void client_change_wm_state(ObClient *self);
  81 static void client_apply_startup_state(ObClient *self,
  82                                        gint x, gint y, gint w, gint h);
  83 static void client_restore_session_state(ObClient *self);
  84 static gboolean client_restore_session_stacking(ObClient *self);
  85 static ObAppSettings *client_get_settings_state(ObClient *self);
  86 static void client_update_transient_tree(ObClient *self,
  87                                          ObGroup *oldgroup, ObGroup *newgroup,
  88                                          gboolean oldgtran, gboolean newgtran,
  89                                          ObClient* oldparent,
  90                                          ObClient *newparent);
  91 static void client_present(ObClient *self, gboolean here, gboolean raise);
  92 static GSList *client_search_all_top_parents_internal(ObClient *self,
  93                                                       gboolean bylayer,
  94                                                       ObStackingLayer layer);
  95 static void client_call_notifies(ObClient *self, GSList *list);
  96
  97
  98 void client_startup(gboolean reconfig)
  99 {
 100     if (reconfig) return;
 101
 102     client_set_list();
 103 }
 104
 105 void client_shutdown(gboolean reconfig)
 106 {
 107     if (reconfig) return;
 108 }
 109
 110 static void client_call_notifies(ObClient *self, GSList *list)
 111 {
 112     GSList *it;
 113
 114     for (it = list; it; it = g_slist_next(it)) {
 115         ClientCallback *d = it->data;
 116         d->func(self, d->data);
 117     }
 118 }
 119
 120 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 121 {
 122     ClientCallback *d = g_new(ClientCallback, 1);
 123     d->func = func;
 124     d->data = data;
 125     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 126 }
 127
 128 void client_remove_destroy_notify(ObClientCallback func)
 129 {
 130     GSList *it;
 131
 132     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 133         ClientCallback *d = it->data;
 134         if (d->func == func) {
 135             g_free(d);
 136             client_destroy_notifies =
 137                 g_slist_delete_link(client_destroy_notifies, it);
 138             break;
 139         }
 140     }
 141 }
 142
 143 void client_set_list()
 144 {
 145     Window *windows, *win_it;
 146     GList *it;
 147     guint size = g_list_length(client_list);
 148
 149     /* create an array of the window ids */
 150     if (size > 0) {
 151         windows = g_new(Window, size);
 152         win_it = windows;
 153         for (it = client_list; it; it = g_list_next(it), ++win_it)
 154             *win_it = ((ObClient*)it->data)->window;
 155     } else
 156         windows = NULL;
 157
 158     PROP_SETA32(RootWindow(ob_display, ob_screen),
 159                 net_client_list, window, (gulong*)windows, size);
 160
 161     if (windows)
 162         g_free(windows);
 163
 164     stacking_set_list();
 165 }
 166
 167 void client_manage_all()
 168 {
 169     guint i, j, nchild;
 170     Window w, *children;
 171     XWMHints *wmhints;
 172     XWindowAttributes attrib;
 173
 174     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 175                &w, &w, &children, &nchild);
 176
 177     /* remove all icon windows from the list */
 178     for (i = 0; i < nchild; i++) {
 179         if (children[i] == None) continue;
 180         wmhints = XGetWMHints(ob_display, children[i]);
 181         if (wmhints) {
 182             if ((wmhints->flags & IconWindowHint) &&
 183                 (wmhints->icon_window != children[i]))
 184                 for (j = 0; j < nchild; j++)
 185                     if (children[j] == wmhints->icon_window) {
 186                         children[j] = None;
 187                         break;
 188                     }
 189             XFree(wmhints);
 190         }
 191     }
 192
 193     for (i = 0; i < nchild; ++i) {
 194         if (children[i] == None)
 195             continue;
 196         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 197             if (attrib.override_redirect) continue;
 198
 199             if (attrib.map_state != IsUnmapped)
 200                 client_manage(children[i]);
 201         }
 202     }
 203     XFree(children);
 204 }
 205
 206 void client_manage(Window window)
 207 {
 208     ObClient *self;
 209     XEvent e;
 210     XWindowAttributes attrib;
 211     XSetWindowAttributes attrib_set;
 212     XWMHints *wmhint;
 213     gboolean activate = FALSE;
 214     ObAppSettings *settings;
 215     gint placex, placey, placew, placeh;
 216     gboolean transient = FALSE;
 217
 218     grab_server(TRUE);
 219
 220     /* check if it has already been unmapped by the time we started
 221        mapping. the grab does a sync so we don't have to here */
 222     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 223         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 224     {
 225         XPutBackEvent(ob_display, &e);
 226
 227         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 228         grab_server(FALSE);
 229         return; /* don't manage it */
 230     }
 231
 232     /* make sure it isn't an override-redirect window */
 233     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 234         attrib.override_redirect)
 235     {
 236         grab_server(FALSE);
 237         return; /* don't manage it */
 238     }
 239
 240     /* is the window a docking app */
 241     if ((wmhint = XGetWMHints(ob_display, window))) {
 242         if ((wmhint->flags & StateHint) &&
 243             wmhint->initial_state == WithdrawnState)
 244         {
 245             dock_add(window, wmhint);
 246             grab_server(FALSE);
 247             XFree(wmhint);
 248             return;
 249         }
 250         XFree(wmhint);
 251     }
 252
 253     ob_debug("Managing window: 0x%lx\n", window);
 254
 255     /* choose the events we want to receive on the CLIENT window */
 256     attrib_set.event_mask = CLIENT_EVENTMASK;
 257     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 258     XChangeWindowAttributes(ob_display, window,
 259                             CWEventMask|CWDontPropagate, &attrib_set);
 260
 261     /* create the ObClient struct, and populate it from the hints on the
 262        window */
 263     self = g_new0(ObClient, 1);
 264     self->obwin.type = Window_Client;
 265     self->window = window;
 266
 267     /* non-zero defaults */
 268     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 269     self->gravity = NorthWestGravity;
 270     self->desktop = screen_num_desktops; /* always an invalid value */
 271     self->user_time = focus_client ? focus_client->user_time : CurrentTime;
 272
 273     /* get all the stuff off the window */
 274     client_get_all(self, TRUE);
 275
 276     /* specify that if we exit, the window should not be destroyed and
 277        should be reparented back to root automatically */
 278     XChangeSaveSet(ob_display, window, SetModeInsert);
 279
 280     /* create the decoration frame for the client window */
 281     self->frame = frame_new(self);
 282
 283     frame_grab_client(self->frame);
 284
 285     /* we've grabbed everything and set everything that we need to at mapping
 286        time now */
 287     grab_server(FALSE);
 288
 289     /* per-app settings override stuff from client_get_all, and return the
 290        settings for other uses too. the returned settings is a shallow copy,
 291        that needs to be freed with g_free(). */
 292     settings = client_get_settings_state(self);
 293     /* the session should get the last say though */
 294     client_restore_session_state(self);
 295
 296     /* now we have all of the window's information so we can set this up */
 297     client_setup_decor_and_functions(self, FALSE);
 298
 299     {
 300         Time t = sn_app_started(self->startup_id, self->class);
 301         if (t) self->user_time = t;
 302     }
 303
 304     /* do this after we have a frame.. it uses the frame to help determine the
 305        WM_STATE to apply. */
 306     client_change_state(self);
 307
 308     /* add ourselves to the focus order */
 309     focus_order_add_new(self);
 310
 311     /* do this to add ourselves to the stacking list in a non-intrusive way */
 312     client_calc_layer(self);
 313
 314     /* focus the new window? */
 315     if (ob_state() != OB_STATE_STARTING &&
 316         (!self->session || self->session->focused) &&
 317         !self->iconic &&
 318         /* this means focus=true for window is same as config_focus_new=true */
 319         ((config_focus_new || (settings && settings->focus == 1)) ||
 320          client_search_focus_tree_full(self)) &&
 321         /* this checks for focus=false for the window */
 322         (!settings || settings->focus != 0) &&
 323         /* note the check against type Normal/Dialog/Utility,
 324            not client_normal(self), which would also include other types.
 325            in this case we want more strict rules for focus */
 326         (self->type == OB_CLIENT_TYPE_NORMAL ||
 327          self->type == OB_CLIENT_TYPE_UTILITY ||
 328          self->type == OB_CLIENT_TYPE_DIALOG))
 329     {
 330         /* XXX use focus_cycle_valid_target instead... */
 331         activate = TRUE;
 332     }
 333
 334     /* remove the client's border */
 335     XSetWindowBorderWidth(ob_display, self->window, 0);
 336
 337     /* adjust the frame to the client's size before showing or placing
 338        the window */
 339     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 340     frame_adjust_client_area(self->frame);
 341
 342     /* where the frame was placed is where the window was originally */
 343     placex = self->area.x;
 344     placey = self->area.y;
 345     placew = self->area.width;
 346     placeh = self->area.height;
 347
 348     /* figure out placement for the window if the window is new */
 349     if (ob_state() == OB_STATE_RUNNING) {
 350         ob_debug("Positioned: %s @ %d %d\n",
 351                  (!self->positioned ? "no" :
 352                   (self->positioned == PPosition ? "program specified" :
 353                    (self->positioned == USPosition ? "user specified" :
 354                     (self->positioned == (PPosition | USPosition) ?
 355                      "program + user specified" :
 356                      "BADNESS !?")))), placex, placey);
 357
 358         ob_debug("Sized: %s @ %d %d\n",
 359                  (!self->sized ? "no" :
 360                   (self->sized == PSize ? "program specified" :
 361                    (self->sized == USSize ? "user specified" :
 362                     (self->sized == (PSize | USSize) ?
 363                      "program + user specified" :
 364                      "BADNESS !?")))), placew, placeh);
 365
 366         /* splash screens are also returned as TRUE for transient,
 367            and so will be forced on screen below */
 368         transient = place_client(self, &placex, &placey, settings);
 369
 370         /* make sure the window is visible. */
 371         client_find_onscreen(self, &placex, &placey, placew, placeh,
 372                              /* non-normal clients has less rules, and
 373                                 windows that are being restored from a
 374                                 session do also. we can assume you want
 375                                 it back where you saved it. Clients saying
 376                                 they placed themselves are subjected to
 377                                 harder rules, ones that are placed by
 378                                 place.c or by the user are allowed partially
 379                                 off-screen and on xinerama divides (ie,
 380                                 it is up to the placement routines to avoid
 381                                 the xinerama divides)
 382
 383                                 splash screens get "transient" set to TRUE by
 384                                 the place_client call
 385                              */
 386                              ob_state() == OB_STATE_RUNNING &&
 387                              (transient ||
 388                               (!(self->positioned & USPosition) &&
 389                                client_normal(self) &&
 390                                !self->session)));
 391     }
 392
 393     /* if the window isn't user-sized, then make it fit inside
 394        the visible screen area on its monitor. Use basically the same rules
 395        for forcing the window on screen in the client_find_onscreen call.
 396
 397        do this after place_client, it chooses the monitor!
 398
 399        splash screens get "transient" set to TRUE by
 400        the place_client call
 401     */
 402     if (ob_state() == OB_STATE_RUNNING &&
 403         (transient ||
 404          (!(self->sized & USSize) &&
 405           client_normal(self) &&
 406           !self->session)))
 407     {
 408         /* make a copy to modify */
 409         Rect a = *screen_area_monitor(self->desktop, client_monitor(self));
 410
 411         /* shrink by the frame's area */
 412         a.width -= self->frame->size.left + self->frame->size.right;
 413         a.height -= self->frame->size.top + self->frame->size.bottom;
 414
 415         /* fit the window inside the area */
 416         if (placew > a.width || self->area.height > a.height) {
 417             placew = MIN(self->area.width, a.width);
 418             placeh = MIN(self->area.height, a.height);
 419
 420             ob_debug("setting window size to %dx%d\n",
 421                      self->area.width, self->area.height);
 422         }
 423     }
 424
 425
 426     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 427              "some restrictions may apply\n",
 428              self->window, placex, placey, placew, placeh);
 429     if (self->session)
 430         ob_debug("  but session requested %d, %d  %d x %d instead, "
 431                  "overriding\n",
 432                  self->session->x, self->session->y,
 433                  self->session->w, self->session->h);
 434
 435     /* do this after the window is placed, so the premax/prefullscreen numbers
 436        won't be all wacko!!
 437
 438        this also places the window
 439     */
 440     client_apply_startup_state(self, placex, placey, placew, placeh);
 441
 442     if (activate) {
 443         guint32 last_time = focus_client ?
 444             focus_client->user_time : CurrentTime;
 445
 446         /* This is focus stealing prevention */
 447         ob_debug_type(OB_DEBUG_FOCUS,
 448                       "Want to focus new window 0x%x with time %u "
 449                       "(last time %u)\n",
 450                       self->window, self->user_time, last_time);
 451
 452         /* if it's on another desktop */
 453         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 454             && /* the timestamp is from before you changed desktops */
 455             self->user_time && screen_desktop_user_time &&
 456             !event_time_after(self->user_time, screen_desktop_user_time))
 457         {
 458             activate = FALSE;
 459             ob_debug_type(OB_DEBUG_FOCUS,
 460                           "Not focusing the window because its on another "
 461                           "desktop\n");
 462         }
 463         /* If something is focused, and it's not our relative... */
 464         else if (focus_client && client_search_focus_tree_full(self) == NULL &&
 465                  client_search_focus_group_full(self) == NULL)
 466         {
 467             /* If time stamp is old, don't steal focus */
 468             if (self->user_time && last_time &&
 469                 !event_time_after(self->user_time, last_time))
 470             {
 471                 activate = FALSE;
 472                 ob_debug_type(OB_DEBUG_FOCUS,
 473                               "Not focusing the window because the time is "
 474                               "too old\n");
 475             }
 476             /* If its a transient (and parents aren't focused) and the time
 477                is ambiguous (either the current focus target doesn't have
 478                a timestamp, or they are the same (we probably inherited it
 479                from them) */
 480             else if (client_has_parent(self) &&
 481                      (!last_time || self->user_time == last_time))
 482             {
 483                 activate = FALSE;
 484                 ob_debug_type(OB_DEBUG_FOCUS,
 485                               "Not focusing the window because it is a "
 486                               "transient, and the time is very ambiguous\n");
 487             }
 488             /* Don't steal focus from globally active clients.
 489                I stole this idea from KWin. It seems nice.
 490              */
 491             else if (!(focus_client->can_focus ||
 492                        focus_client->focus_notify))
 493             {
 494                 activate = FALSE;
 495                 ob_debug_type(OB_DEBUG_FOCUS,
 496                               "Not focusing the window because a globally "
 497                               "active client has focus\n");
 498             }
 499             /* Don't move focus if it's not going to go to this window
 500                anyway */
 501             else if (client_focus_target(self) != self) {
 502                 activate = FALSE;
 503                 ob_debug_type(OB_DEBUG_FOCUS,
 504                               "Not focusing the window because another window "
 505                               "would get the focus anyway\n");
 506             }
 507         }
 508
 509         if (!activate) {
 510             ob_debug_type(OB_DEBUG_FOCUS,
 511                           "Focus stealing prevention activated for %s with "
 512                           "time %u (last time %u)\n",
 513                           self->title, self->user_time, last_time);
 514             /* if the client isn't focused, then hilite it so the user
 515                knows it is there */
 516             client_hilite(self, TRUE);
 517         }
 518     }
 519     else {
 520         /* This may look rather odd. Well it's because new windows are added
 521            to the stacking order non-intrusively. If we're not going to focus
 522            the new window or hilite it, then we raise it to the top. This will
 523            take affect for things that don't get focused like splash screens.
 524            Also if you don't have focus_new enabled, then it's going to get
 525            raised to the top. Legacy begets legacy I guess?
 526         */
 527         if (!client_restore_session_stacking(self))
 528             stacking_raise(CLIENT_AS_WINDOW(self));
 529     }
 530
 531     mouse_grab_for_client(self, TRUE);
 532
 533     /* this has to happen before we try focus the window, but we want it to
 534        happen after the client's stacking has been determined or it looks bad
 535     */
 536     {
 537         gulong ignore_start;
 538         if (!config_focus_under_mouse)
 539             ignore_start = event_start_ignore_all_enters();
 540
 541         client_show(self);
 542
 543         if (!config_focus_under_mouse)
 544             event_end_ignore_all_enters(ignore_start);
 545     }
 546
 547     if (activate) {
 548         gboolean stacked = client_restore_session_stacking(self);
 549         client_present(self, FALSE, !stacked);
 550     }
 551
 552     /* add to client list/map */
 553     client_list = g_list_append(client_list, self);
 554     g_hash_table_insert(window_map, &self->window, self);
 555
 556     /* this has to happen after we're in the client_list */
 557     if (STRUT_EXISTS(self->strut))
 558         screen_update_areas();
 559
 560     /* update the list hints */
 561     client_set_list();
 562
 563     /* free the ObAppSettings shallow copy */
 564     g_free(settings);
 565
 566     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 567              window, self->frame->window, self->class);
 568
 569     return;
 570 }
 571
 572
 573 ObClient *client_fake_manage(Window window)
 574 {
 575     ObClient *self;
 576     ObAppSettings *settings;
 577
 578     ob_debug("Pretend-managing window: %lx\n", window);
 579
 580     /* do this minimal stuff to figure out the client's decorations */
 581
 582     self = g_new0(ObClient, 1);
 583     self->window = window;
 584
 585     client_get_all(self, FALSE);
 586     /* per-app settings override stuff, and return the settings for other
 587        uses too. this returns a shallow copy that needs to be freed */
 588     settings = client_get_settings_state(self);
 589
 590     client_setup_decor_and_functions(self, FALSE);
 591
 592     /* create the decoration frame for the client window and adjust its size */
 593     self->frame = frame_new(self);
 594     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 595
 596     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 597              self->frame->size.left, self->frame->size.right,
 598              self->frame->size.top, self->frame->size.bottom);
 599
 600     /* free the ObAppSettings shallow copy */
 601     g_free(settings);
 602
 603     return self;
 604 }
 605
 606 void client_unmanage_all()
 607 {
 608     while (client_list != NULL)
 609         client_unmanage(client_list->data);
 610 }
 611
 612 void client_unmanage(ObClient *self)
 613 {
 614     guint j;
 615     GSList *it;
 616     gulong ignore_start;
 617
 618     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 619              self->window, self->frame->window,
 620              self->class, self->title ? self->title : "");
 621
 622     g_assert(self != NULL);
 623
 624     /* we dont want events no more. do this before hiding the frame so we
 625        don't generate more events */
 626     XSelectInput(ob_display, self->window, NoEventMask);
 627
 628     /* ignore enter events from the unmap so it doesnt mess with the focus */
 629     if (!config_focus_under_mouse)
 630         ignore_start = event_start_ignore_all_enters();
 631
 632     frame_hide(self->frame);
 633     /* flush to send the hide to the server quickly */
 634     XFlush(ob_display);
 635
 636     if (!config_focus_under_mouse)
 637         event_end_ignore_all_enters(ignore_start);
 638
 639     mouse_grab_for_client(self, FALSE);
 640
 641     /* remove the window from our save set */
 642     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 643
 644     /* kill the property windows */
 645     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 646
 647     /* update the focus lists */
 648     focus_order_remove(self);
 649     if (client_focused(self)) {
 650         /* don't leave an invalid focus_client */
 651         focus_client = NULL;
 652     }
 653
 654     client_list = g_list_remove(client_list, self);
 655     stacking_remove(self);
 656     g_hash_table_remove(window_map, &self->window);
 657
 658     /* once the client is out of the list, update the struts to remove its
 659        influence */
 660     if (STRUT_EXISTS(self->strut))
 661         screen_update_areas();
 662
 663     client_call_notifies(self, client_destroy_notifies);
 664
 665     /* tell our parent(s) that we're gone */
 666     for (it = self->parents; it; it = g_slist_next(it))
 667         ((ObClient*)it->data)->transients =
 668             g_slist_remove(((ObClient*)it->data)->transients,self);
 669
 670     /* tell our transients that we're gone */
 671     for (it = self->transients; it; it = g_slist_next(it)) {
 672         ((ObClient*)it->data)->parents =
 673             g_slist_remove(((ObClient*)it->data)->parents, self);
 674         /* we could be keeping our children in a higher layer */
 675         client_calc_layer(it->data);
 676     }
 677
 678     /* remove from its group */
 679     if (self->group) {
 680         group_remove(self->group, self);
 681         self->group = NULL;
 682     }
 683
 684     /* restore the window's original geometry so it is not lost */
 685     {
 686         Rect a;
 687
 688         a = self->area;
 689
 690         if (self->fullscreen)
 691             a = self->pre_fullscreen_area;
 692         else if (self->max_horz || self->max_vert) {
 693             if (self->max_horz) {
 694                 a.x = self->pre_max_area.x;
 695                 a.width = self->pre_max_area.width;
 696             }
 697             if (self->max_vert) {
 698                 a.y = self->pre_max_area.y;
 699                 a.height = self->pre_max_area.height;
 700             }
 701         }
 702
 703         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 704         /* let it be moved and resized no matter what */
 705         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 706         self->decorations = 0; /* unmanaged windows have no decor */
 707
 708         /* give the client its border back */
 709         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 710
 711         client_move_resize(self, a.x, a.y, a.width, a.height);
 712     }
 713
 714     /* reparent the window out of the frame, and free the frame */
 715     frame_release_client(self->frame);
 716     frame_free(self->frame);
 717     self->frame = NULL;
 718
 719     if (ob_state() != OB_STATE_EXITING) {
 720         /* these values should not be persisted across a window
 721            unmapping/mapping */
 722         PROP_ERASE(self->window, net_wm_desktop);
 723         PROP_ERASE(self->window, net_wm_state);
 724         PROP_ERASE(self->window, wm_state);
 725     } else {
 726         /* if we're left in an unmapped state, the client wont be mapped.
 727            this is bad, since we will no longer be managing the window on
 728            restart */
 729         XMapWindow(ob_display, self->window);
 730     }
 731
 732     /* update the list hints */
 733     client_set_list();
 734
 735     ob_debug("Unmanaged window 0x%lx\n", self->window);
 736
 737     /* free all data allocated in the client struct */
 738     g_slist_free(self->transients);
 739     for (j = 0; j < self->nicons; ++j)
 740         g_free(self->icons[j].data);
 741     if (self->nicons > 0)
 742         g_free(self->icons);
 743     g_free(self->wm_command);
 744     g_free(self->title);
 745     g_free(self->icon_title);
 746     g_free(self->name);
 747     g_free(self->class);
 748     g_free(self->role);
 749     g_free(self->client_machine);
 750     g_free(self->sm_client_id);
 751     g_free(self);
 752 }
 753
 754 void client_fake_unmanage(ObClient *self)
 755 {
 756     /* this is all that got allocated to get the decorations */
 757
 758     frame_free(self->frame);
 759     g_free(self);
 760 }
 761
 762 /*! Returns a new structure containing the per-app settings for this client.
 763   The returned structure needs to be freed with g_free. */
 764 static ObAppSettings *client_get_settings_state(ObClient *self)
 765 {
 766     ObAppSettings *settings;
 767     GSList *it;
 768
 769     settings = config_create_app_settings();
 770
 771     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 772         ObAppSettings *app = it->data;
 773         gboolean match = TRUE;
 774
 775         g_assert(app->name != NULL || app->class != NULL);
 776
 777         /* we know that either name or class is not NULL so it will have to
 778            match to use the rule */
 779         if (app->name &&
 780             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 781             match = FALSE;
 782         else if (app->class &&
 783                 !g_pattern_match(app->class,
 784                                  strlen(self->class), self->class, NULL))
 785             match = FALSE;
 786         else if (app->role &&
 787                  !g_pattern_match(app->role,
 788                                   strlen(self->role), self->role, NULL))
 789             match = FALSE;
 790
 791         if (match) {
 792             ob_debug("Window matching: %s\n", app->name);
 793
 794             /* copy the settings to our struct, overriding the existing
 795                settings if they are not defaults */
 796             config_app_settings_copy_non_defaults(app, settings);
 797         }
 798     }
 799
 800     if (settings->shade != -1)
 801         self->shaded = !!settings->shade;
 802     if (settings->decor != -1)
 803         self->undecorated = !settings->decor;
 804     if (settings->iconic != -1)
 805         self->iconic = !!settings->iconic;
 806     if (settings->skip_pager != -1)
 807         self->skip_pager = !!settings->skip_pager;
 808     if (settings->skip_taskbar != -1)
 809         self->skip_taskbar = !!settings->skip_taskbar;
 810
 811     if (settings->max_vert != -1)
 812         self->max_vert = !!settings->max_vert;
 813     if (settings->max_horz != -1)
 814         self->max_horz = !!settings->max_horz;
 815
 816     if (settings->fullscreen != -1)
 817         self->fullscreen = !!settings->fullscreen;
 818
 819     if (settings->desktop) {
 820         if (settings->desktop == DESKTOP_ALL)
 821             self->desktop = settings->desktop;
 822         else if (settings->desktop > 0 &&
 823                  settings->desktop <= screen_num_desktops)
 824             self->desktop = settings->desktop - 1;
 825     }
 826
 827     if (settings->layer == -1) {
 828         self->below = TRUE;
 829         self->above = FALSE;
 830     }
 831     else if (settings->layer == 0) {
 832         self->below = FALSE;
 833         self->above = FALSE;
 834     }
 835     else if (settings->layer == 1) {
 836         self->below = FALSE;
 837         self->above = TRUE;
 838     }
 839     return settings;
 840 }
 841
 842 static void client_restore_session_state(ObClient *self)
 843 {
 844     GList *it;
 845
 846     ob_debug_type(OB_DEBUG_SM,
 847                   "Restore session for client %s\n", self->title);
 848
 849     if (!(it = session_state_find(self))) {
 850         ob_debug_type(OB_DEBUG_SM,
 851                       "Session data not found for client %s\n", self->title);
 852         return;
 853     }
 854
 855     self->session = it->data;
 856
 857     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 858                   self->title);
 859
 860     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 861     self->positioned = USPosition;
 862     self->sized = USSize;
 863     if (self->session->w > 0)
 864         self->area.width = self->session->w;
 865     if (self->session->h > 0)
 866         self->area.height = self->session->h;
 867     XResizeWindow(ob_display, self->window,
 868                   self->area.width, self->area.height);
 869
 870     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 871                      self->session->desktop :
 872                      MIN(screen_num_desktops - 1, self->session->desktop));
 873     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 874
 875     self->shaded = self->session->shaded;
 876     self->iconic = self->session->iconic;
 877     self->skip_pager = self->session->skip_pager;
 878     self->skip_taskbar = self->session->skip_taskbar;
 879     self->fullscreen = self->session->fullscreen;
 880     self->above = self->session->above;
 881     self->below = self->session->below;
 882     self->max_horz = self->session->max_horz;
 883     self->max_vert = self->session->max_vert;
 884     self->undecorated = self->session->undecorated;
 885 }
 886
 887 static gboolean client_restore_session_stacking(ObClient *self)
 888 {
 889     GList *it, *mypos;
 890
 891     if (!self->session) return FALSE;
 892
 893     mypos = g_list_find(session_saved_state, self->session);
 894     if (!mypos) return FALSE;
 895
 896     /* start above me and look for the first client */
 897     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 898         GList *cit;
 899
 900         for (cit = client_list; cit; cit = g_list_next(cit)) {
 901             ObClient *c = cit->data;
 902             /* found a client that was in the session, so go below it */
 903             if (c->session == it->data) {
 904                 stacking_below(CLIENT_AS_WINDOW(self),
 905                                CLIENT_AS_WINDOW(cit->data));
 906                 return TRUE;
 907             }
 908         }
 909     }
 910     return FALSE;
 911 }
 912
 913 void client_move_onscreen(ObClient *self, gboolean rude)
 914 {
 915     gint x = self->area.x;
 916     gint y = self->area.y;
 917     if (client_find_onscreen(self, &x, &y,
 918                              self->area.width,
 919                              self->area.height, rude)) {
 920         client_move(self, x, y);
 921     }
 922 }
 923
 924 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 925                               gboolean rude)
 926 {
 927     Rect *mon_a, *all_a;
 928     gint ox = *x, oy = *y;
 929     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 930     gint fw, fh;
 931     Rect desired;
 932
 933     RECT_SET(desired, *x, *y, w, h);
 934     all_a = screen_area(self->desktop);
 935     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired));
 936
 937     /* get where the frame would be */
 938     frame_client_gravity(self->frame, x, y, w, h);
 939
 940     /* get the requested size of the window with decorations */
 941     fw = self->frame->size.left + w + self->frame->size.right;
 942     fh = self->frame->size.top + h + self->frame->size.bottom;
 943
 944     /* This makes sure windows aren't entirely outside of the screen so you
 945        can't see them at all.
 946        It makes sure 10% of the window is on the screen at least. At don't let
 947        it move itself off the top of the screen, which would hide the titlebar
 948        on you. (The user can still do this if they want too, it's only limiting
 949        the application.
 950
 951        XXX watch for xinerama dead areas...
 952     */
 953     if (client_normal(self)) {
 954         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 955             *x = all_a->x + all_a->width - fw/10;
 956         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 957             *y = all_a->y + all_a->height - fh/10;
 958         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 959             *x = all_a->x - fw*9/10;
 960         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 961             *y = all_a->y - fw*9/10;
 962     }
 963
 964     /* If rudeness wasn't requested, then figure out of the client is currently
 965        entirely on the screen. If it is, and the position isn't changing by
 966        request, and it is enlarging, then be rude even though it wasn't
 967        requested */
 968     if (!rude) {
 969         Point oldtl, oldtr, oldbl, oldbr;
 970         Point newtl, newtr, newbl, newbr;
 971         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 972
 973         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 974         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 975                   self->frame->area.y + self->frame->area.height - 1);
 976         POINT_SET(oldtr, oldbr.x, oldtl.y);
 977         POINT_SET(oldbl, oldtl.x, oldbr.y);
 978
 979         POINT_SET(newtl, *x, *y);
 980         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 981         POINT_SET(newtr, newbr.x, newtl.y);
 982         POINT_SET(newbl, newtl.x, newbr.y);
 983
 984         /* is it moving or just resizing from some corner? */
 985         stationary_l = oldtl.x == newtl.x;
 986         stationary_r = oldtr.x == newtr.x;
 987         stationary_t = oldtl.y == newtl.y;
 988         stationary_b = oldbl.y == newbl.y;
 989
 990         /* if left edge is growing and didnt move right edge */
 991         if (stationary_r && newtl.x < oldtl.x)
 992             rudel = TRUE;
 993         /* if right edge is growing and didnt move left edge */
 994         if (stationary_l && newtr.x > oldtr.x)
 995             ruder = TRUE;
 996         /* if top edge is growing and didnt move bottom edge */
 997         if (stationary_b && newtl.y < oldtl.y)
 998             rudet = TRUE;
 999         /* if bottom edge is growing and didnt move top edge */
1000         if (stationary_t && newbl.y > oldbl.y)
1001             rudeb = TRUE;
1002     }
1003
1004     /* This here doesn't let windows even a pixel outside the struts/screen.
1005      * When called from client_manage, programs placing themselves are
1006      * forced completely onscreen, while things like
1007      * xterm -geometry resolution-width/2 will work fine. Trying to
1008      * place it completely offscreen will be handled in the above code.
1009      * Sorry for this confused comment, i am tired. */
1010     if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
1011     if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
1012         *x = mon_a->x + MAX(0, mon_a->width - fw);
1013
1014     if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
1015     if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
1016         *y = mon_a->y + MAX(0, mon_a->height - fh);
1017
1018     /* get where the client should be */
1019     frame_frame_gravity(self->frame, x, y, w, h);
1020
1021     return ox != *x || oy != *y;
1022 }
1023
1024 static void client_get_all(ObClient *self, gboolean real)
1025 {
1026     /* this is needed for the frame to set itself up */
1027     client_get_area(self);
1028
1029     /* these things can change the decor and functions of the window */
1030
1031     client_get_mwm_hints(self);
1032     /* this can change the mwmhints for special cases */
1033     client_get_type_and_transientness(self);
1034     client_get_state(self);
1035     client_update_normal_hints(self);
1036
1037     /* get the session related properties, these can change decorations
1038        from per-app settings */
1039     client_get_session_ids(self);
1040
1041     /* now we got everything that can affect the decorations */
1042     if (!real)
1043         return;
1044
1045     /* get this early so we have it for debugging */
1046     client_update_title(self);
1047
1048     client_update_protocols(self);
1049
1050     client_update_wmhints(self);
1051     /* this may have already been called from client_update_wmhints */
1052     if (!self->parents && !self->transient_for_group)
1053         client_update_transient_for(self);
1054
1055     client_get_startup_id(self);
1056     client_get_desktop(self);/* uses transient data/group/startup id if a
1057                                 desktop is not specified */
1058     client_get_shaped(self);
1059
1060     {
1061         /* a couple type-based defaults for new windows */
1062
1063         /* this makes sure that these windows appear on all desktops */
1064         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1065             self->desktop = DESKTOP_ALL;
1066     }
1067
1068 #ifdef SYNC
1069     client_update_sync_request_counter(self);
1070 #endif
1071
1072     client_get_colormap(self);
1073     client_update_strut(self);
1074     client_update_icons(self);
1075     client_update_user_time_window(self);
1076     if (!self->user_time_window) /* check if this would have been called */
1077         client_update_user_time(self);
1078     client_update_icon_geometry(self);
1079 }
1080
1081 static void client_get_startup_id(ObClient *self)
1082 {
1083     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1084         if (self->group)
1085             PROP_GETS(self->group->leader,
1086                       net_startup_id, utf8, &self->startup_id);
1087 }
1088
1089 static void client_get_area(ObClient *self)
1090 {
1091     XWindowAttributes wattrib;
1092     Status ret;
1093
1094     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1095     g_assert(ret != BadWindow);
1096
1097     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1098     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1099     self->border_width = wattrib.border_width;
1100
1101     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1102              wattrib.width, wattrib.height, wattrib.border_width);
1103 }
1104
1105 static void client_get_desktop(ObClient *self)
1106 {
1107     guint32 d = screen_num_desktops; /* an always-invalid value */
1108
1109     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1110         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1111             self->desktop = screen_num_desktops - 1;
1112         else
1113             self->desktop = d;
1114         ob_debug("client requested desktop 0x%x\n", self->desktop);
1115     } else {
1116         GSList *it;
1117         gboolean first = TRUE;
1118         guint all = screen_num_desktops; /* not a valid value */
1119
1120         /* if they are all on one desktop, then open it on the
1121            same desktop */
1122         for (it = self->parents; it; it = g_slist_next(it)) {
1123             ObClient *c = it->data;
1124
1125             if (c->desktop == DESKTOP_ALL) continue;
1126
1127             if (first) {
1128                 all = c->desktop;
1129                 first = FALSE;
1130             }
1131             else if (all != c->desktop)
1132                 all = screen_num_desktops; /* make it invalid */
1133         }
1134         if (all != screen_num_desktops) {
1135             self->desktop = all;
1136
1137             ob_debug("client desktop set from parents: 0x%x\n",
1138                      self->desktop);
1139         }
1140         /* try get from the startup-notification protocol */
1141         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1142             if (self->desktop >= screen_num_desktops &&
1143                 self->desktop != DESKTOP_ALL)
1144                 self->desktop = screen_num_desktops - 1;
1145             ob_debug("client desktop set from startup-notification: 0x%x\n",
1146                      self->desktop);
1147         }
1148         /* defaults to the current desktop */
1149         else {
1150             self->desktop = screen_desktop;
1151             ob_debug("client desktop set to the current desktop: %d\n",
1152                      self->desktop);
1153         }
1154     }
1155 }
1156
1157 static void client_get_state(ObClient *self)
1158 {
1159     guint32 *state;
1160     guint num;
1161
1162     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1163         gulong i;
1164         for (i = 0; i < num; ++i) {
1165             if (state[i] == prop_atoms.net_wm_state_modal)
1166                 self->modal = TRUE;
1167             else if (state[i] == prop_atoms.net_wm_state_shaded)
1168                 self->shaded = TRUE;
1169             else if (state[i] == prop_atoms.net_wm_state_hidden)
1170                 self->iconic = TRUE;
1171             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1172                 self->skip_taskbar = TRUE;
1173             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1174                 self->skip_pager = TRUE;
1175             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1176                 self->fullscreen = TRUE;
1177             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1178                 self->max_vert = TRUE;
1179             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1180                 self->max_horz = TRUE;
1181             else if (state[i] == prop_atoms.net_wm_state_above)
1182                 self->above = TRUE;
1183             else if (state[i] == prop_atoms.net_wm_state_below)
1184                 self->below = TRUE;
1185             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1186                 self->demands_attention = TRUE;
1187             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1188                 self->undecorated = TRUE;
1189         }
1190
1191         g_free(state);
1192     }
1193 }
1194
1195 static void client_get_shaped(ObClient *self)
1196 {
1197     self->shaped = FALSE;
1198 #ifdef   SHAPE
1199     if (extensions_shape) {
1200         gint foo;
1201         guint ufoo;
1202         gint s;
1203
1204         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1205
1206         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1207                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1208                            &ufoo);
1209         self->shaped = (s != 0);
1210     }
1211 #endif
1212 }
1213
1214 void client_update_transient_for(ObClient *self)
1215 {
1216     Window t = None;
1217     ObClient *target = NULL;
1218     gboolean trangroup = FALSE;
1219
1220     if (XGetTransientForHint(ob_display, self->window, &t)) {
1221         if (t != self->window) { /* cant be transient to itself! */
1222             target = g_hash_table_lookup(window_map, &t);
1223             /* if this happens then we need to check for it*/
1224             g_assert(target != self);
1225             if (target && !WINDOW_IS_CLIENT(target)) {
1226                 /* this can happen when a dialog is a child of
1227                    a dockapp, for example */
1228                 target = NULL;
1229             }
1230         }
1231
1232         /* Setting the transient_for to Root is actually illegal, however
1233            applications from time have done this to specify transient for
1234            their group */
1235         if (!target && self->group && t == RootWindow(ob_display, ob_screen))
1236             trangroup = TRUE;
1237     } else if (self->group && self->transient)
1238         trangroup = TRUE;
1239
1240     client_update_transient_tree(self, self->group, self->group,
1241                                  self->transient_for_group, trangroup,
1242                                  client_direct_parent(self), target);
1243     self->transient_for_group = trangroup;
1244
1245 }
1246
1247 static void client_update_transient_tree(ObClient *self,
1248                                          ObGroup *oldgroup, ObGroup *newgroup,
1249                                          gboolean oldgtran, gboolean newgtran,
1250                                          ObClient* oldparent,
1251                                          ObClient *newparent)
1252 {
1253     GSList *it, *next;
1254     ObClient *c;
1255
1256     g_assert(!oldgtran || oldgroup);
1257     g_assert(!newgtran || newgroup);
1258     g_assert((!oldgtran && !oldparent) ||
1259              (oldgtran && !oldparent) ||
1260              (!oldgtran && oldparent));
1261     g_assert((!newgtran && !newparent) ||
1262              (newgtran && !newparent) ||
1263              (!newgtran && newparent));
1264
1265     /* * *
1266       Group transient windows are not allowed to have other group
1267       transient windows as their children.
1268       * * */
1269
1270
1271     /* No change has occured */
1272     if (oldgroup == newgroup &&
1273         oldgtran == newgtran &&
1274         oldparent == newparent) return;
1275
1276     /** Remove the client from the transient tree wherever it has changed **/
1277
1278     /* If the window is becoming a direct transient for a window in its group
1279        then any group transients which were our children and are now becoming
1280        our parents need to stop being our children.
1281
1282        Group transients can't be children of group transients already, but
1283        we could have any number of direct parents above up, any of which could
1284        be transient for the group, and we need to remove it from our children.
1285     */
1286     if (!oldgtran && oldparent != newparent && newparent != NULL &&
1287         newgroup != NULL && newgroup == oldgroup &&
1288         client_normal(newparent))
1289     {
1290         ObClient *look = client_search_top_direct_parent(newparent);
1291         self->transients = g_slist_remove(self->transients, look);
1292         look->parents = g_slist_remove(look->parents, self);
1293     }
1294
1295
1296     /* If the group changed, or if we are just becoming transient for the
1297        group, then we need to remove any old group transient windows
1298        from our children. But if we were already transient for the group, then
1299        other group transients are not our children. */
1300     if ((oldgroup != newgroup || (newgtran && oldgtran != newgtran)) &&
1301         oldgroup != NULL && !oldgtran)
1302     {
1303         for (it = self->transients; it; it = next) {
1304             next = g_slist_next(it);
1305             c = it->data;
1306             if (c->group == oldgroup && client_normal(self)) {
1307                 self->transients = g_slist_delete_link(self->transients, it);
1308                 c->parents = g_slist_remove(c->parents, self);
1309             }
1310         }
1311     }
1312
1313     /* If we used to be transient for a group and now we are not, or we're
1314        transient for a new group, then we need to remove ourselves from all
1315        our ex-parents */
1316     if (oldgtran && (oldgroup != newgroup || oldgtran != newgtran))
1317     {
1318         for (it = self->parents; it; it = next) {
1319             next = g_slist_next(it);
1320             c = it->data;
1321             if (!c->transient_for_group && client_normal(c)) {
1322                 c->transients = g_slist_remove(c->transients, self);
1323                 self->parents = g_slist_delete_link(self->parents, it);
1324             }
1325         }
1326     }
1327     /* If we used to be transient for a single window and we are no longer
1328        transient for it, then we need to remove ourself from its children */
1329     else if (oldparent && oldparent != newparent &&
1330              client_normal(oldparent))
1331     {
1332         oldparent->transients = g_slist_remove(oldparent->transients, self);
1333         self->parents = g_slist_remove(self->parents, oldparent);
1334     }
1335
1336     /** Re-add the client to the transient tree wherever it has changed **/
1337
1338     /* If we're now transient for a group and we weren't transient for it
1339        before then we need to add ourselves to all our new parents */
1340     if (newgtran && (oldgroup != newgroup || oldgtran != newgtran))
1341     {
1342         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1343             c = it->data;
1344             if (c != self && !c->transient_for_group && client_normal(c))
1345             {
1346                 c->transients = g_slist_prepend(c->transients, self);
1347                 self->parents = g_slist_prepend(self->parents, c);
1348             }
1349         }
1350     }
1351     /* If we are now transient for a single window which we weren't before,
1352        we need to add ourselves to its children
1353
1354        WARNING: Cyclical transient ness is possible if two windows are
1355        transient for eachother.
1356     */
1357     else if (newparent && newparent != oldparent &&
1358              /* don't make ourself its child if it is already our child */
1359              !client_is_direct_child(self, newparent) &&
1360              client_normal(newparent))
1361     {
1362         newparent->transients = g_slist_prepend(newparent->transients, self);
1363         self->parents = g_slist_prepend(self->parents, newparent);
1364     }
1365
1366     /* If the group changed then we need to add any new group transient
1367        windows to our children. But if we're transient for the group, then
1368        other group transients are not our children.
1369
1370        WARNING: Cyclical transient-ness is possible. For e.g. if:
1371        A is transient for the group
1372        B is transient for A
1373        C is transient for B
1374        A can't be transient for C or we have a cycle
1375     */
1376     if (oldgroup != newgroup && newgroup != NULL && !newgtran &&
1377         client_normal(self))
1378     {
1379         for (it = newgroup->members; it; it = g_slist_next(it)) {
1380             c = it->data;
1381             if (c != self && c->transient_for_group &&
1382                 /* Don't make it our child if it is already our parent */
1383                 !client_is_direct_child(c, self))
1384             {
1385                 self->transients = g_slist_prepend(self->transients, c);
1386                 c->parents = g_slist_prepend(c->parents, self);
1387             }
1388         }
1389     }
1390 }
1391
1392 static void client_get_mwm_hints(ObClient *self)
1393 {
1394     guint num;
1395     guint32 *hints;
1396
1397     self->mwmhints.flags = 0; /* default to none */
1398
1399     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1400                     &hints, &num)) {
1401         if (num >= OB_MWM_ELEMENTS) {
1402             self->mwmhints.flags = hints[0];
1403             self->mwmhints.functions = hints[1];
1404             self->mwmhints.decorations = hints[2];
1405         }
1406         g_free(hints);
1407     }
1408 }
1409
1410 void client_get_type_and_transientness(ObClient *self)
1411 {
1412     guint num, i;
1413     guint32 *val;
1414     Window t;
1415
1416     self->type = -1;
1417     self->transient = FALSE;
1418
1419     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1420         /* use the first value that we know about in the array */
1421         for (i = 0; i < num; ++i) {
1422             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1423                 self->type = OB_CLIENT_TYPE_DESKTOP;
1424             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1425                 self->type = OB_CLIENT_TYPE_DOCK;
1426             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1427                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1428             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1429                 self->type = OB_CLIENT_TYPE_MENU;
1430             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1431                 self->type = OB_CLIENT_TYPE_UTILITY;
1432             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1433                 self->type = OB_CLIENT_TYPE_SPLASH;
1434             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1435                 self->type = OB_CLIENT_TYPE_DIALOG;
1436             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1437                 self->type = OB_CLIENT_TYPE_NORMAL;
1438             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1439                 /* prevent this window from getting any decor or
1440                    functionality */
1441                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1442                                          OB_MWM_FLAG_DECORATIONS);
1443                 self->mwmhints.decorations = 0;
1444                 self->mwmhints.functions = 0;
1445             }
1446             if (self->type != (ObClientType) -1)
1447                 break; /* grab the first legit type */
1448         }
1449         g_free(val);
1450     }
1451
1452     if (XGetTransientForHint(ob_display, self->window, &t))
1453         self->transient = TRUE;
1454
1455     if (self->type == (ObClientType) -1) {
1456         /*the window type hint was not set, which means we either classify
1457           ourself as a normal window or a dialog, depending on if we are a
1458           transient. */
1459         if (self->transient)
1460             self->type = OB_CLIENT_TYPE_DIALOG;
1461         else
1462             self->type = OB_CLIENT_TYPE_NORMAL;
1463     }
1464
1465     /* then, based on our type, we can update our transientness.. */
1466     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1467         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1468         self->type == OB_CLIENT_TYPE_MENU ||
1469         self->type == OB_CLIENT_TYPE_UTILITY)
1470     {
1471         self->transient = TRUE;
1472     }
1473 }
1474
1475 void client_update_protocols(ObClient *self)
1476 {
1477     guint32 *proto;
1478     guint num_return, i;
1479
1480     self->focus_notify = FALSE;
1481     self->delete_window = FALSE;
1482
1483     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1484         for (i = 0; i < num_return; ++i) {
1485             if (proto[i] == prop_atoms.wm_delete_window)
1486                 /* this means we can request the window to close */
1487                 self->delete_window = TRUE;
1488             else if (proto[i] == prop_atoms.wm_take_focus)
1489                 /* if this protocol is requested, then the window will be
1490                    notified whenever we want it to receive focus */
1491                 self->focus_notify = TRUE;
1492 #ifdef SYNC
1493             else if (proto[i] == prop_atoms.net_wm_sync_request)
1494                 /* if this protocol is requested, then resizing the
1495                    window will be synchronized between the frame and the
1496                    client */
1497                 self->sync_request = TRUE;
1498 #endif
1499         }
1500         g_free(proto);
1501     }
1502 }
1503
1504 #ifdef SYNC
1505 void client_update_sync_request_counter(ObClient *self)
1506 {
1507     guint32 i;
1508
1509     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1510         self->sync_counter = i;
1511     } else
1512         self->sync_counter = None;
1513 }
1514 #endif
1515
1516 void client_get_colormap(ObClient *self)
1517 {
1518     XWindowAttributes wa;
1519
1520     if (XGetWindowAttributes(ob_display, self->window, &wa))
1521         client_update_colormap(self, wa.colormap);
1522 }
1523
1524 void client_update_colormap(ObClient *self, Colormap colormap)
1525 {
1526     if (colormap == self->colormap) return;
1527
1528     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1529
1530     if (client_focused(self)) {
1531         screen_install_colormap(self, FALSE); /* uninstall old one */
1532         self->colormap = colormap;
1533         screen_install_colormap(self, FALSE); /* install new one */
1534     } else
1535         self->colormap = colormap;
1536 }
1537
1538 void client_update_normal_hints(ObClient *self)
1539 {
1540     XSizeHints size;
1541     glong ret;
1542
1543     /* defaults */
1544     self->min_ratio = 0.0f;
1545     self->max_ratio = 0.0f;
1546     SIZE_SET(self->size_inc, 1, 1);
1547     SIZE_SET(self->base_size, 0, 0);
1548     SIZE_SET(self->min_size, 0, 0);
1549     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1550
1551     /* get the hints from the window */
1552     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1553         /* normal windows can't request placement! har har
1554         if (!client_normal(self))
1555         */
1556         self->positioned = (size.flags & (PPosition|USPosition));
1557         self->sized = (size.flags & (PSize|USSize));
1558
1559         if (size.flags & PWinGravity)
1560             self->gravity = size.win_gravity;
1561
1562         if (size.flags & PAspect) {
1563             if (size.min_aspect.y)
1564                 self->min_ratio =
1565                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1566             if (size.max_aspect.y)
1567                 self->max_ratio =
1568                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1569         }
1570
1571         if (size.flags & PMinSize)
1572             SIZE_SET(self->min_size, size.min_width, size.min_height);
1573
1574         if (size.flags & PMaxSize)
1575             SIZE_SET(self->max_size, size.max_width, size.max_height);
1576
1577         if (size.flags & PBaseSize)
1578             SIZE_SET(self->base_size, size.base_width, size.base_height);
1579
1580         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1581             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1582
1583         ob_debug("Normal hints: min size (%d %d) max size (%d %d)\n   "
1584                  "size inc (%d %d) base size (%d %d)\n",
1585                  self->min_size.width, self->min_size.height,
1586                  self->max_size.width, self->max_size.height,
1587                  self->size_inc.width, self->size_inc.height,
1588                  self->base_size.width, self->base_size.height);
1589     }
1590     else
1591         ob_debug("Normal hints: not set\n");
1592 }
1593
1594 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1595 {
1596     /* start with everything (cept fullscreen) */
1597     self->decorations =
1598         (OB_FRAME_DECOR_TITLEBAR |
1599          OB_FRAME_DECOR_HANDLE |
1600          OB_FRAME_DECOR_GRIPS |
1601          OB_FRAME_DECOR_BORDER |
1602          OB_FRAME_DECOR_ICON |
1603          OB_FRAME_DECOR_ALLDESKTOPS |
1604          OB_FRAME_DECOR_ICONIFY |
1605          OB_FRAME_DECOR_MAXIMIZE |
1606          OB_FRAME_DECOR_SHADE |
1607          OB_FRAME_DECOR_CLOSE);
1608     self->functions =
1609         (OB_CLIENT_FUNC_RESIZE |
1610          OB_CLIENT_FUNC_MOVE |
1611          OB_CLIENT_FUNC_ICONIFY |
1612          OB_CLIENT_FUNC_MAXIMIZE |
1613          OB_CLIENT_FUNC_SHADE |
1614          OB_CLIENT_FUNC_CLOSE |
1615          OB_CLIENT_FUNC_BELOW |
1616          OB_CLIENT_FUNC_ABOVE |
1617          OB_CLIENT_FUNC_UNDECORATE);
1618
1619     if (!(self->min_size.width < self->max_size.width ||
1620           self->min_size.height < self->max_size.height))
1621         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1622
1623     switch (self->type) {
1624     case OB_CLIENT_TYPE_NORMAL:
1625         /* normal windows retain all of the possible decorations and
1626            functionality, and are the only windows that you can fullscreen */
1627         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1628         break;
1629
1630     case OB_CLIENT_TYPE_DIALOG:
1631     case OB_CLIENT_TYPE_UTILITY:
1632         /* these windows don't have anything added or removed by default */
1633         break;
1634
1635     case OB_CLIENT_TYPE_MENU:
1636     case OB_CLIENT_TYPE_TOOLBAR:
1637         /* these windows can't iconify or maximize */
1638         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1639                                OB_FRAME_DECOR_MAXIMIZE);
1640         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1641                              OB_CLIENT_FUNC_MAXIMIZE);
1642         break;
1643
1644     case OB_CLIENT_TYPE_SPLASH:
1645         /* these don't get get any decorations, and the only thing you can
1646            do with them is move them */
1647         self->decorations = 0;
1648         self->functions = OB_CLIENT_FUNC_MOVE;
1649         break;
1650
1651     case OB_CLIENT_TYPE_DESKTOP:
1652         /* these windows are not manipulated by the window manager */
1653         self->decorations = 0;
1654         self->functions = 0;
1655         break;
1656
1657     case OB_CLIENT_TYPE_DOCK:
1658         /* these windows are not manipulated by the window manager, but they
1659            can set below layer which has a special meaning */
1660         self->decorations = 0;
1661         self->functions = OB_CLIENT_FUNC_BELOW;
1662         break;
1663     }
1664
1665     /* Mwm Hints are applied subtractively to what has already been chosen for
1666        decor and functionality */
1667     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1668         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1669             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1670                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1671             {
1672                 /* if the mwm hints request no handle or title, then all
1673                    decorations are disabled, but keep the border if that's
1674                    specified */
1675                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1676                     self->decorations = OB_FRAME_DECOR_BORDER;
1677                 else
1678                     self->decorations = 0;
1679             }
1680         }
1681     }
1682
1683     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1684         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1685             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1686                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1687             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1688                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1689             /* dont let mwm hints kill any buttons
1690                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1691                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1692                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1693                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1694             */
1695             /* dont let mwm hints kill the close button
1696                if (! (self->mwmhints.functions & MwmFunc_Close))
1697                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1698         }
1699     }
1700
1701     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1702         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1703     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1704         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1705     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1706         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1707
1708     /* can't maximize without moving/resizing */
1709     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1710           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1711           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1712         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1713         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1714     }
1715
1716     if (self->max_horz && self->max_vert) {
1717         /* you can't resize fully maximized windows */
1718         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1719         /* kill the handle on fully maxed windows */
1720         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1721     }
1722
1723     /* If there are no decorations to remove, don't allow the user to try
1724        toggle the state */
1725     if (self->decorations == 0)
1726         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1727
1728     /* finally, the user can have requested no decorations, which overrides
1729        everything (but doesnt give it a border if it doesnt have one) */
1730     if (self->undecorated)
1731         self->decorations = 0;
1732
1733     /* if we don't have a titlebar, then we cannot shade! */
1734     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1735         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1736
1737     /* now we need to check against rules for the client's current state */
1738     if (self->fullscreen) {
1739         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1740                             OB_CLIENT_FUNC_FULLSCREEN |
1741                             OB_CLIENT_FUNC_ICONIFY);
1742         self->decorations = 0;
1743     }
1744
1745     client_change_allowed_actions(self);
1746
1747     if (reconfig)
1748         client_reconfigure(self);
1749 }
1750
1751 static void client_change_allowed_actions(ObClient *self)
1752 {
1753     gulong actions[12];
1754     gint num = 0;
1755
1756     /* desktop windows are kept on all desktops */
1757     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1758         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1759
1760     if (self->functions & OB_CLIENT_FUNC_SHADE)
1761         actions[num++] = prop_atoms.net_wm_action_shade;
1762     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1763         actions[num++] = prop_atoms.net_wm_action_close;
1764     if (self->functions & OB_CLIENT_FUNC_MOVE)
1765         actions[num++] = prop_atoms.net_wm_action_move;
1766     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1767         actions[num++] = prop_atoms.net_wm_action_minimize;
1768     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1769         actions[num++] = prop_atoms.net_wm_action_resize;
1770     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1771         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1772     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1773         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1774         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1775     }
1776     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1777         actions[num++] = prop_atoms.net_wm_action_above;
1778     if (self->functions & OB_CLIENT_FUNC_BELOW)
1779         actions[num++] = prop_atoms.net_wm_action_below;
1780     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1781         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1782
1783     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1784
1785     /* make sure the window isn't breaking any rules now */
1786
1787     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1788         if (self->frame) client_shade(self, FALSE);
1789         else self->shaded = FALSE;
1790     }
1791     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1792         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1793         else self->iconic = FALSE;
1794     }
1795     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1796         if (self->frame) client_fullscreen(self, FALSE);
1797         else self->fullscreen = FALSE;
1798     }
1799     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1800                                                          self->max_vert)) {
1801         if (self->frame) client_maximize(self, FALSE, 0);
1802         else self->max_vert = self->max_horz = FALSE;
1803     }
1804 }
1805
1806 void client_reconfigure(ObClient *self)
1807 {
1808     client_configure(self, self->area.x, self->area.y,
1809                      self->area.width, self->area.height,
1810                      FALSE, TRUE);
1811 }
1812
1813 void client_update_wmhints(ObClient *self)
1814 {
1815     XWMHints *hints;
1816
1817     /* assume a window takes input if it doesnt specify */
1818     self->can_focus = TRUE;
1819
1820     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1821         gboolean ur;
1822
1823         if (hints->flags & InputHint)
1824             self->can_focus = hints->input;
1825
1826         /* only do this when first managing the window *AND* when we aren't
1827            starting up! */
1828         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1829             if (hints->flags & StateHint)
1830                 self->iconic = hints->initial_state == IconicState;
1831
1832         ur = self->urgent;
1833         self->urgent = (hints->flags & XUrgencyHint);
1834         if (self->urgent && !ur)
1835             client_hilite(self, TRUE);
1836         else if (!self->urgent && ur && self->demands_attention)
1837             client_hilite(self, FALSE);
1838
1839         if (!(hints->flags & WindowGroupHint))
1840             hints->window_group = None;
1841
1842         /* did the group state change? */
1843         if (hints->window_group !=
1844             (self->group ? self->group->leader : None))
1845         {
1846             ObGroup *oldgroup = self->group;
1847
1848             /* remove from the old group if there was one */
1849             if (self->group != NULL) {
1850                 group_remove(self->group, self);
1851                 self->group = NULL;
1852             }
1853
1854             /* add ourself to the group if we have one */
1855             if (hints->window_group != None) {
1856                 self->group = group_add(hints->window_group, self);
1857             }
1858
1859             /* Put ourselves into the new group's transient tree, and remove
1860                ourselves from the old group's */
1861             client_update_transient_tree(self, oldgroup, self->group,
1862                                          self->transient_for_group,
1863                                          self->transient_for_group,
1864                                          client_direct_parent(self),
1865                                          client_direct_parent(self));
1866
1867             /* Lastly, being in a group, or not, can change if the window is
1868                transient for anything.
1869
1870                The logic for this is:
1871                self->transient = TRUE always if the window wants to be
1872                transient for something, even if transient_for was NULL because
1873                it wasn't in a group before.
1874
1875                If parents was NULL and oldgroup was NULL we can assume
1876                that when we add the new group, it will become transient for
1877                something.
1878
1879                If transient_for_group is TRUE, then it must have already
1880                had a group. If it is getting a new group, the above call to
1881                client_update_transient_tree has already taken care of
1882                everything ! If it is losing all group status then it will
1883                no longer be transient for anything and that needs to be
1884                updated.
1885             */
1886             if (self->transient &&
1887                 ((self->parents == NULL && oldgroup == NULL) ||
1888                  (self->transient_for_group && !self->group)))
1889                 client_update_transient_for(self);
1890         }
1891
1892         /* the WM_HINTS can contain an icon */
1893         if (hints->flags & IconPixmapHint)
1894             client_update_icons(self);
1895
1896         XFree(hints);
1897     }
1898 }
1899
1900 void client_update_title(ObClient *self)
1901 {
1902     gchar *data = NULL;
1903     gchar *visible = NULL;
1904
1905     g_free(self->title);
1906
1907     /* try netwm */
1908     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1909         /* try old x stuff */
1910         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1911               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1912             if (self->transient) {
1913                 /*
1914                   GNOME alert windows are not given titles:
1915                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1916                 */
1917                 data = g_strdup("");
1918             } else
1919                 data = g_strdup("Unnamed Window");
1920         }
1921     }
1922
1923     if (self->client_machine) {
1924         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1925         g_free(data);
1926     } else
1927         visible = data;
1928
1929     PROP_SETS(self->window, net_wm_visible_name, visible);
1930     self->title = visible;
1931
1932     if (self->frame)
1933         frame_adjust_title(self->frame);
1934
1935     /* update the icon title */
1936     data = NULL;
1937     g_free(self->icon_title);
1938
1939     /* try netwm */
1940     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1941         /* try old x stuff */
1942         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1943               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1944             data = g_strdup(self->title);
1945
1946     if (self->client_machine) {
1947         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1948         g_free(data);
1949     } else
1950         visible = data;
1951
1952     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
1953     self->icon_title = visible;
1954 }
1955
1956 void client_update_strut(ObClient *self)
1957 {
1958     guint num;
1959     guint32 *data;
1960     gboolean got = FALSE;
1961     StrutPartial strut;
1962
1963     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1964                     &data, &num)) {
1965         if (num == 12) {
1966             got = TRUE;
1967             STRUT_PARTIAL_SET(strut,
1968                               data[0], data[2], data[1], data[3],
1969                               data[4], data[5], data[8], data[9],
1970                               data[6], data[7], data[10], data[11]);
1971         }
1972         g_free(data);
1973     }
1974
1975     if (!got &&
1976         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1977         if (num == 4) {
1978             const Rect *a;
1979
1980             got = TRUE;
1981
1982             /* use the screen's width/height */
1983             a = screen_physical_area();
1984
1985             STRUT_PARTIAL_SET(strut,
1986                               data[0], data[2], data[1], data[3],
1987                               a->y, a->y + a->height - 1,
1988                               a->x, a->x + a->width - 1,
1989                               a->y, a->y + a->height - 1,
1990                               a->x, a->x + a->width - 1);
1991         }
1992         g_free(data);
1993     }
1994
1995     if (!got)
1996         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
1997                           0, 0, 0, 0, 0, 0, 0, 0);
1998
1999     if (!STRUT_EQUAL(strut, self->strut)) {
2000         self->strut = strut;
2001
2002         /* updating here is pointless while we're being mapped cuz we're not in
2003            the client list yet */
2004         if (self->frame)
2005             screen_update_areas();
2006     }
2007 }
2008
2009 void client_update_icons(ObClient *self)
2010 {
2011     guint num;
2012     guint32 *data;
2013     guint w, h, i, j;
2014
2015     for (i = 0; i < self->nicons; ++i)
2016         g_free(self->icons[i].data);
2017     if (self->nicons > 0)
2018         g_free(self->icons);
2019     self->nicons = 0;
2020
2021     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2022         /* figure out how many valid icons are in here */
2023         i = 0;
2024         while (num - i > 2) {
2025             w = data[i++];
2026             h = data[i++];
2027             i += w * h;
2028             if (i > num || w*h == 0) break;
2029             ++self->nicons;
2030         }
2031
2032         self->icons = g_new(ObClientIcon, self->nicons);
2033
2034         /* store the icons */
2035         i = 0;
2036         for (j = 0; j < self->nicons; ++j) {
2037             guint x, y, t;
2038
2039             w = self->icons[j].width = data[i++];
2040             h = self->icons[j].height = data[i++];
2041
2042             if (w*h == 0) continue;
2043
2044             self->icons[j].data = g_new(RrPixel32, w * h);
2045             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2046                 if (x >= w) {
2047                     x = 0;
2048                     ++y;
2049                 }
2050                 self->icons[j].data[t] =
2051                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2052                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2053                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2054                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2055             }
2056             g_assert(i <= num);
2057         }
2058
2059         g_free(data);
2060     } else {
2061         XWMHints *hints;
2062
2063         if ((hints = XGetWMHints(ob_display, self->window))) {
2064             if (hints->flags & IconPixmapHint) {
2065                 self->nicons = 1;
2066                 self->icons = g_new(ObClientIcon, self->nicons);
2067                 xerror_set_ignore(TRUE);
2068                 if (!RrPixmapToRGBA(ob_rr_inst,
2069                                     hints->icon_pixmap,
2070                                     (hints->flags & IconMaskHint ?
2071                                      hints->icon_mask : None),
2072                                     &self->icons[0].width,
2073                                     &self->icons[0].height,
2074                                     &self->icons[0].data))
2075                 {
2076                     g_free(self->icons);
2077                     self->nicons = 0;
2078                 }
2079                 xerror_set_ignore(FALSE);
2080             }
2081             XFree(hints);
2082         }
2083     }
2084
2085     /* set the default icon onto the window
2086        in theory, this could be a race, but if a window doesn't set an icon
2087        or removes it entirely, it's not very likely it is going to set one
2088        right away afterwards */
2089     if (self->nicons == 0) {
2090         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2091         gulong *data;
2092
2093         data = g_new(gulong, 48*48+2);
2094         data[0] = data[1] =  48;
2095         for (i = 0; i < 48*48; ++i)
2096             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2097                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2098                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2099                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2100         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2101         g_free(data);
2102     } else if (self->frame)
2103         /* don't draw the icon empty if we're just setting one now anyways,
2104            we'll get the property change any second */
2105         frame_adjust_icon(self->frame);
2106 }
2107
2108 void client_update_user_time(ObClient *self)
2109 {
2110     guint32 time;
2111     gboolean got = FALSE;
2112
2113     if (self->user_time_window)
2114         got = PROP_GET32(self->user_time_window,
2115                          net_wm_user_time, cardinal, &time);
2116     if (!got)
2117         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2118
2119     if (got) {
2120         /* we set this every time, not just when it grows, because in practice
2121            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2122            backward we don't want all windows to stop focusing. we'll just
2123            assume noone is setting times older than the last one, cuz that
2124            would be pretty stupid anyways
2125         */
2126         self->user_time = time;
2127
2128         /*ob_debug("window %s user time %u\n", self->title, time);*/
2129     }
2130 }
2131
2132 void client_update_user_time_window(ObClient *self)
2133 {
2134     guint32 w;
2135
2136     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2137         w = None;
2138
2139     if (w != self->user_time_window) {
2140         /* remove the old window */
2141         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2142         self->user_time_window = None;
2143
2144         if (self->group && self->group->leader == w) {
2145             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2146                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2147             /* do it anyways..? */
2148         }
2149         else if (w == self->window) {
2150             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2151                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2152             w = None; /* don't do it */
2153         }
2154
2155         /* add the new window */
2156         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2157         self->user_time_window = w;
2158
2159         /* and update from it */
2160         client_update_user_time(self);
2161     }
2162 }
2163
2164 void client_update_icon_geometry(ObClient *self)
2165 {
2166     guint num;
2167     guint32 *data;
2168
2169     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2170
2171     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2172         && num == 4)
2173     {
2174         /* don't let them set it with an area < 0 */
2175         RECT_SET(self->icon_geometry, data[0], data[1],
2176                  MAX(data[2],0), MAX(data[3],0));
2177     }
2178 }
2179
2180 static void client_get_session_ids(ObClient *self)
2181 {
2182     guint32 leader;
2183     gboolean got;
2184     gchar *s;
2185     gchar **ss;
2186
2187     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2188         leader = None;
2189
2190     /* get the SM_CLIENT_ID */
2191     got = FALSE;
2192     if (leader)
2193         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2194     if (!got)
2195         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2196
2197     /* get the WM_CLASS (name and class). make them "" if they are not
2198        provided */
2199     got = FALSE;
2200     if (leader)
2201         got = PROP_GETSS(leader, wm_class, locale, &ss);
2202     if (!got)
2203         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2204
2205     if (got) {
2206         if (ss[0]) {
2207             self->name = g_strdup(ss[0]);
2208             if (ss[1])
2209                 self->class = g_strdup(ss[1]);
2210         }
2211         g_strfreev(ss);
2212     }
2213
2214     if (self->name == NULL) self->name = g_strdup("");
2215     if (self->class == NULL) self->class = g_strdup("");
2216
2217     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2218     got = FALSE;
2219     if (leader)
2220         got = PROP_GETS(leader, wm_window_role, locale, &s);
2221     if (!got)
2222         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2223
2224     if (got)
2225         self->role = s;
2226     else
2227         self->role = g_strdup("");
2228
2229     /* get the WM_COMMAND */
2230     got = FALSE;
2231
2232     if (leader)
2233         got = PROP_GETSS(leader, wm_command, locale, &ss);
2234     if (!got)
2235         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2236
2237     if (got) {
2238         /* merge/mash them all together */
2239         gchar *merge = NULL;
2240         gint i;
2241
2242         for (i = 0; ss[i]; ++i) {
2243             gchar *tmp = merge;
2244             if (merge)
2245                 merge = g_strconcat(merge, ss[i], NULL);
2246             else
2247                 merge = g_strconcat(ss[i], NULL);
2248             g_free(tmp);
2249         }
2250         g_strfreev(ss);
2251
2252         self->wm_command = merge;
2253     }
2254
2255     /* get the WM_CLIENT_MACHINE */
2256     got = FALSE;
2257     if (leader)
2258         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2259     if (!got)
2260         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2261
2262     if (got) {
2263         gchar localhost[128];
2264
2265         gethostname(localhost, 127);
2266         localhost[127] = '\0';
2267         if (strcmp(localhost, s) != 0)
2268             self->client_machine = s;
2269         else
2270             g_free(s);
2271     }
2272 }
2273
2274 static void client_change_wm_state(ObClient *self)
2275 {
2276     gulong state[2];
2277     glong old;
2278
2279     old = self->wmstate;
2280
2281     if (self->shaded || self->iconic ||
2282         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2283     {
2284         self->wmstate = IconicState;
2285     } else
2286         self->wmstate = NormalState;
2287
2288     if (old != self->wmstate) {
2289         PROP_MSG(self->window, kde_wm_change_state,
2290                  self->wmstate, 1, 0, 0);
2291
2292         state[0] = self->wmstate;
2293         state[1] = None;
2294         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2295     }
2296 }
2297
2298 static void client_change_state(ObClient *self)
2299 {
2300     gulong netstate[12];
2301     guint num;
2302
2303     num = 0;
2304     if (self->modal)
2305         netstate[num++] = prop_atoms.net_wm_state_modal;
2306     if (self->shaded)
2307         netstate[num++] = prop_atoms.net_wm_state_shaded;
2308     if (self->iconic)
2309         netstate[num++] = prop_atoms.net_wm_state_hidden;
2310     if (self->skip_taskbar)
2311         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2312     if (self->skip_pager)
2313         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2314     if (self->fullscreen)
2315         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2316     if (self->max_vert)
2317         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2318     if (self->max_horz)
2319         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2320     if (self->above)
2321         netstate[num++] = prop_atoms.net_wm_state_above;
2322     if (self->below)
2323         netstate[num++] = prop_atoms.net_wm_state_below;
2324     if (self->demands_attention)
2325         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2326     if (self->undecorated)
2327         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2328     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2329
2330     if (self->frame)
2331         frame_adjust_state(self->frame);
2332 }
2333
2334 ObClient *client_search_focus_tree(ObClient *self)
2335 {
2336     GSList *it;
2337     ObClient *ret;
2338
2339     for (it = self->transients; it; it = g_slist_next(it)) {
2340         if (client_focused(it->data)) return it->data;
2341         if ((ret = client_search_focus_tree(it->data))) return ret;
2342     }
2343     return NULL;
2344 }
2345
2346 ObClient *client_search_focus_tree_full(ObClient *self)
2347 {
2348     if (self->parents) {
2349         GSList *it;
2350
2351         for (it = self->parents; it; it = g_slist_next(it)) {
2352             ObClient *c = it->data;
2353             if ((c = client_search_focus_tree_full(it->data))) return c;
2354         }
2355
2356         return NULL;
2357     }
2358     else {
2359         /* this function checks the whole tree, the client_search_focus_tree
2360            does not, so we need to check this window */
2361         if (client_focused(self))
2362             return self;
2363         return client_search_focus_tree(self);
2364     }
2365 }
2366
2367 ObClient *client_search_focus_group_full(ObClient *self)
2368 {
2369     GSList *it;
2370
2371     if (self->group) {
2372         for (it = self->group->members; it; it = g_slist_next(it)) {
2373             ObClient *c = it->data;
2374
2375             if (client_focused(c)) return c;
2376             if ((c = client_search_focus_tree(it->data))) return c;
2377         }
2378     } else
2379         if (client_focused(self)) return self;
2380     return NULL;
2381 }
2382
2383 gboolean client_has_parent(ObClient *self)
2384 {
2385     return self->parents != NULL;
2386 }
2387
2388 static ObStackingLayer calc_layer(ObClient *self)
2389 {
2390     ObStackingLayer l;
2391
2392     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2393         l = OB_STACKING_LAYER_DESKTOP;
2394     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2395         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2396         else l = OB_STACKING_LAYER_ABOVE;
2397     }
2398     else if ((self->fullscreen ||
2399               /* No decorations and fills the monitor = oldskool fullscreen.
2400                  But not for maximized windows.
2401               */
2402               (self->decorations == 0 &&
2403                !(self->max_horz && self->max_vert) &&
2404                RECT_EQUAL(self->area,
2405                           *screen_physical_area_monitor
2406                           (client_monitor(self))))) &&
2407              (client_focused(self) || client_search_focus_tree(self)))
2408         l = OB_STACKING_LAYER_FULLSCREEN;
2409     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2410     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2411     else l = OB_STACKING_LAYER_NORMAL;
2412
2413     return l;
2414 }
2415
2416 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2417                                         ObStackingLayer min)
2418 {
2419     ObStackingLayer old, own;
2420     GSList *it;
2421
2422     old = self->layer;
2423     own = calc_layer(self);
2424     self->layer = MAX(own, min);
2425
2426     if (self->layer != old) {
2427         stacking_remove(CLIENT_AS_WINDOW(self));
2428         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2429     }
2430
2431     for (it = self->transients; it; it = g_slist_next(it))
2432         client_calc_layer_recursive(it->data, orig,
2433                                     self->layer);
2434 }
2435
2436 void client_calc_layer(ObClient *self)
2437 {
2438     ObClient *orig;
2439     GSList *it;
2440
2441     orig = self;
2442
2443     /* transients take on the layer of their parents */
2444     it = client_search_all_top_parents(self);
2445
2446     for (; it; it = g_slist_next(it))
2447         client_calc_layer_recursive(it->data, orig, 0);
2448 }
2449
2450 gboolean client_should_show(ObClient *self)
2451 {
2452     if (self->iconic)
2453         return FALSE;
2454     if (client_normal(self) && screen_showing_desktop)
2455         return FALSE;
2456     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2457         return TRUE;
2458
2459     return FALSE;
2460 }
2461
2462 gboolean client_show(ObClient *self)
2463 {
2464     gboolean show = FALSE;
2465
2466     if (client_should_show(self)) {
2467         frame_show(self->frame);
2468         show = TRUE;
2469
2470         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2471            it needs to be in IconicState. This includes when it is on another
2472            desktop!
2473         */
2474         client_change_wm_state(self);
2475     }
2476     return show;
2477 }
2478
2479 gboolean client_hide(ObClient *self)
2480 {
2481     gboolean hide = FALSE;
2482
2483     if (!client_should_show(self)) {
2484         if (self == focus_client) {
2485             /* if there is a grab going on, then we need to cancel it. if we
2486                move focus during the grab, applications will get
2487                NotifyWhileGrabbed events and ignore them !
2488
2489                actions should not rely on being able to move focus during an
2490                interactive grab.
2491             */
2492             event_cancel_all_key_grabs();
2493         }
2494
2495         /* We don't need to ignore enter events here.
2496            The window can hide/iconify in 3 different ways:
2497            1 - through an x message. in this case we ignore all enter events
2498                caused by responding to the x message (unless underMouse)
2499            2 - by a keyboard action. in this case we ignore all enter events
2500                caused by the action
2501            3 - by a mouse action. in this case they are doing stuff with the
2502                mouse and focus _should_ move.
2503
2504            Also in action_end, we simulate an enter event that can't be ignored
2505            so trying to ignore them is futile in case 3 anyways
2506         */
2507
2508         frame_hide(self->frame);
2509         hide = TRUE;
2510
2511         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2512            it needs to be in IconicState. This includes when it is on another
2513            desktop!
2514         */
2515         client_change_wm_state(self);
2516     }
2517     return hide;
2518 }
2519
2520 void client_showhide(ObClient *self)
2521 {
2522     if (!client_show(self))
2523         client_hide(self);
2524 }
2525
2526 gboolean client_normal(ObClient *self) {
2527     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2528               self->type == OB_CLIENT_TYPE_DOCK ||
2529               self->type == OB_CLIENT_TYPE_SPLASH);
2530 }
2531
2532 gboolean client_helper(ObClient *self)
2533 {
2534     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2535             self->type == OB_CLIENT_TYPE_MENU ||
2536             self->type == OB_CLIENT_TYPE_TOOLBAR);
2537 }
2538
2539 gboolean client_mouse_focusable(ObClient *self)
2540 {
2541     return !(self->type == OB_CLIENT_TYPE_MENU ||
2542              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2543              self->type == OB_CLIENT_TYPE_SPLASH ||
2544              self->type == OB_CLIENT_TYPE_DOCK);
2545 }
2546
2547 gboolean client_enter_focusable(ObClient *self)
2548 {
2549     /* you can focus desktops but it shouldn't on enter */
2550     return (client_mouse_focusable(self) &&
2551             self->type != OB_CLIENT_TYPE_DESKTOP);
2552 }
2553
2554
2555 static void client_apply_startup_state(ObClient *self,
2556                                        gint x, gint y, gint w, gint h)
2557 {
2558     /* save the states that we are going to apply */
2559     gboolean iconic = self->iconic;
2560     gboolean fullscreen = self->fullscreen;
2561     gboolean undecorated = self->undecorated;
2562     gboolean shaded = self->shaded;
2563     gboolean demands_attention = self->demands_attention;
2564     gboolean max_horz = self->max_horz;
2565     gboolean max_vert = self->max_vert;
2566     Rect oldarea;
2567     gint l;
2568
2569     /* turn them all off in the client, so they won't affect the window
2570        being placed */
2571     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2572         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2573
2574     /* move the client to its placed position, or it it's already there,
2575        generate a ConfigureNotify telling the client where it is.
2576
2577        do this after adjusting the frame. otherwise it gets all weird and
2578        clients don't work right
2579
2580        do this before applying the states so they have the correct
2581        pre-max/pre-fullscreen values
2582     */
2583     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2584     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2585              self->window, x, y, w, h);
2586     /* save the area, and make it where it should be for the premax stuff */
2587     oldarea = self->area;
2588     RECT_SET(self->area, x, y, w, h);
2589
2590     /* apply the states. these are in a carefully crafted order.. */
2591
2592     if (iconic)
2593         client_iconify(self, TRUE, FALSE, TRUE);
2594     if (fullscreen)
2595         client_fullscreen(self, TRUE);
2596     if (undecorated)
2597         client_set_undecorated(self, TRUE);
2598     if (shaded)
2599         client_shade(self, TRUE);
2600     if (demands_attention)
2601         client_hilite(self, TRUE);
2602
2603     if (max_vert && max_horz)
2604         client_maximize(self, TRUE, 0);
2605     else if (max_vert)
2606         client_maximize(self, TRUE, 2);
2607     else if (max_horz)
2608         client_maximize(self, TRUE, 1);
2609
2610     /* if the window hasn't been configured yet, then do so now */
2611     if (!fullscreen && !max_vert && !max_horz) {
2612         self->area = oldarea;
2613         client_configure(self, x, y, w, h, FALSE, TRUE);
2614     }
2615
2616     /* set the desktop hint, to make sure that it always exists */
2617     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2618
2619     /* nothing to do for the other states:
2620        skip_taskbar
2621        skip_pager
2622        modal
2623        above
2624        below
2625     */
2626 }
2627
2628 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2629 {
2630     /* these should be the current values. this is for when you're not moving,
2631        just resizing */
2632     g_assert(*x == self->area.x);
2633     g_assert(oldw == self->area.width);
2634
2635     /* horizontal */
2636     switch (self->gravity) {
2637     default:
2638     case NorthWestGravity:
2639     case WestGravity:
2640     case SouthWestGravity:
2641     case StaticGravity:
2642     case ForgetGravity:
2643         break;
2644     case NorthGravity:
2645     case CenterGravity:
2646     case SouthGravity:
2647         *x -= (neww - oldw) / 2;
2648         break;
2649     case NorthEastGravity:
2650     case EastGravity:
2651     case SouthEastGravity:
2652         *x -= neww - oldw;
2653         break;
2654     }
2655 }
2656
2657 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2658 {
2659     /* these should be the current values. this is for when you're not moving,
2660        just resizing */
2661     g_assert(*y == self->area.y);
2662     g_assert(oldh == self->area.height);
2663
2664     /* vertical */
2665     switch (self->gravity) {
2666     default:
2667     case NorthWestGravity:
2668     case NorthGravity:
2669     case NorthEastGravity:
2670     case StaticGravity:
2671     case ForgetGravity:
2672         break;
2673     case WestGravity:
2674     case CenterGravity:
2675     case EastGravity:
2676         *y -= (newh - oldh) / 2;
2677         break;
2678     case SouthWestGravity:
2679     case SouthGravity:
2680     case SouthEastGravity:
2681         *y -= newh - oldh;
2682         break;
2683     }
2684 }
2685
2686 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2687                           gint *logicalw, gint *logicalh,
2688                           gboolean user)
2689 {
2690     Rect desired_area = {*x, *y, *w, *h};
2691
2692     /* make the frame recalculate its dimentions n shit without changing
2693        anything visible for real, this way the constraints below can work with
2694        the updated frame dimensions. */
2695     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2696
2697     /* gets the frame's position */
2698     frame_client_gravity(self->frame, x, y, *w, *h);
2699
2700     /* these positions are frame positions, not client positions */
2701
2702     /* set the size and position if fullscreen */
2703     if (self->fullscreen) {
2704         Rect *a;
2705         guint i;
2706
2707         i = screen_find_monitor(&desired_area);
2708         a = screen_physical_area_monitor(i);
2709
2710         *x = a->x;
2711         *y = a->y;
2712         *w = a->width;
2713         *h = a->height;
2714
2715         user = FALSE; /* ignore if the client can't be moved/resized when it
2716                          is fullscreening */
2717     } else if (self->max_horz || self->max_vert) {
2718         Rect *a;
2719         guint i;
2720
2721         i = screen_find_monitor(&desired_area);
2722         a = screen_area_monitor(self->desktop, i);
2723
2724         /* set the size and position if maximized */
2725         if (self->max_horz) {
2726             *x = a->x;
2727             *w = a->width - self->frame->size.left - self->frame->size.right;
2728         }
2729         if (self->max_vert) {
2730             *y = a->y;
2731             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2732         }
2733
2734         user = FALSE; /* ignore if the client can't be moved/resized when it
2735                          is maximizing */
2736     }
2737
2738     /* gets the client's position */
2739     frame_frame_gravity(self->frame, x, y, *w, *h);
2740
2741     /* work within the prefered sizes given by the window */
2742     if (!(*w == self->area.width && *h == self->area.height)) {
2743         gint basew, baseh, minw, minh;
2744         gint incw, inch, minratio, maxratio;
2745
2746         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2747         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2748         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2749             0 : self->min_ratio;
2750         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2751             0 : self->max_ratio;
2752
2753         /* base size is substituted with min size if not specified */
2754         if (self->base_size.width || self->base_size.height) {
2755             basew = self->base_size.width;
2756             baseh = self->base_size.height;
2757         } else {
2758             basew = self->min_size.width;
2759             baseh = self->min_size.height;
2760         }
2761         /* min size is substituted with base size if not specified */
2762         if (self->min_size.width || self->min_size.height) {
2763             minw = self->min_size.width;
2764             minh = self->min_size.height;
2765         } else {
2766             minw = self->base_size.width;
2767             minh = self->base_size.height;
2768         }
2769
2770         /* if this is a user-requested resize, then check against min/max
2771            sizes */
2772
2773         /* smaller than min size or bigger than max size? */
2774         if (*w > self->max_size.width) *w = self->max_size.width;
2775         if (*w < minw) *w = minw;
2776         if (*h > self->max_size.height) *h = self->max_size.height;
2777         if (*h < minh) *h = minh;
2778
2779         *w -= basew;
2780         *h -= baseh;
2781
2782         /* keep to the increments */
2783         *w /= incw;
2784         *h /= inch;
2785
2786         /* you cannot resize to nothing */
2787         if (basew + *w < 1) *w = 1 - basew;
2788         if (baseh + *h < 1) *h = 1 - baseh;
2789
2790         /* save the logical size */
2791         *logicalw = incw > 1 ? *w : *w + basew;
2792         *logicalh = inch > 1 ? *h : *h + baseh;
2793
2794         *w *= incw;
2795         *h *= inch;
2796
2797         *w += basew;
2798         *h += baseh;
2799
2800         /* adjust the height to match the width for the aspect ratios.
2801            for this, min size is not substituted for base size ever. */
2802         *w -= self->base_size.width;
2803         *h -= self->base_size.height;
2804
2805         if (minratio)
2806             if (*h * minratio > *w) {
2807                 *h = (gint)(*w / minratio);
2808
2809                 /* you cannot resize to nothing */
2810                 if (*h < 1) {
2811                     *h = 1;
2812                     *w = (gint)(*h * minratio);
2813                 }
2814             }
2815         if (maxratio)
2816             if (*h * maxratio < *w) {
2817                 *h = (gint)(*w / maxratio);
2818
2819                 /* you cannot resize to nothing */
2820                 if (*h < 1) {
2821                     *h = 1;
2822                     *w = (gint)(*h * minratio);
2823                 }
2824             }
2825
2826         *w += self->base_size.width;
2827         *h += self->base_size.height;
2828     }
2829
2830     /* these override the above states! if you cant move you can't move! */
2831     if (user) {
2832         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2833             *x = self->area.x;
2834             *y = self->area.y;
2835         }
2836         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2837             *w = self->area.width;
2838             *h = self->area.height;
2839         }
2840     }
2841
2842     g_assert(*w > 0);
2843     g_assert(*h > 0);
2844 }
2845
2846
2847 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2848                       gboolean user, gboolean final)
2849 {
2850     gint oldw, oldh;
2851     gboolean send_resize_client;
2852     gboolean moved = FALSE, resized = FALSE;
2853     gboolean fmoved, fresized;
2854     guint fdecor = self->frame->decorations;
2855     gboolean fhorz = self->frame->max_horz;
2856     gboolean fvert = self->frame->max_vert;
2857     gint logicalw, logicalh;
2858
2859     /* find the new x, y, width, and height (and logical size) */
2860     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2861
2862     /* set the logical size if things changed */
2863     if (!(w == self->area.width && h == self->area.height))
2864         SIZE_SET(self->logical_size, logicalw, logicalh);
2865
2866     /* figure out if we moved or resized or what */
2867     moved = (x != self->area.x || y != self->area.y);
2868     resized = (w != self->area.width || h != self->area.height);
2869
2870     oldw = self->area.width;
2871     oldh = self->area.height;
2872     RECT_SET(self->area, x, y, w, h);
2873
2874     /* for app-requested resizes, always resize if 'resized' is true.
2875        for user-requested ones, only resize if final is true, or when
2876        resizing in redraw mode */
2877     send_resize_client = ((!user && resized) ||
2878                           (user && (final ||
2879                                     (resized && config_resize_redraw))));
2880
2881     /* if the client is enlarging, then resize the client before the frame */
2882     if (send_resize_client && (w > oldw || h > oldh)) {
2883         XMoveResizeWindow(ob_display, self->window,
2884                           self->frame->size.left, self->frame->size.top,
2885                           MAX(w, oldw), MAX(h, oldh));
2886         frame_adjust_client_area(self->frame);
2887     }
2888
2889     /* find the frame's dimensions and move/resize it */
2890     fmoved = moved;
2891     fresized = resized;
2892
2893     /* if decorations changed, then readjust everything for the frame */
2894     if (self->decorations != fdecor ||
2895         self->max_horz != fhorz || self->max_vert != fvert)
2896     {
2897         fmoved = fresized = TRUE;
2898     }
2899
2900     /* adjust the frame */
2901     if (fmoved || fresized)
2902         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2903
2904     /* This is kinda tricky and should not be changed.. let me explain!
2905
2906        When user = FALSE, then the request is coming from the application
2907        itself, and we are more strict about when to send a synthetic
2908        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
2909        in this case.
2910
2911        When user = TRUE, then the request is coming from "us", like when we
2912        maximize a window or sometihng.  In this case we are more lenient.  We
2913        used to follow the same rules as above, but _Java_ Swing can't handle
2914        this. So just to appease Swing, when user = TRUE, we always send
2915        a synthetic ConfigureNotify to give the window its root coordinates.
2916     */
2917     if ((!user && !resized) || (user && final))
2918     {
2919         XEvent event;
2920
2921         /* we have reset the client to 0 border width, so don't include
2922            it in these coords */
2923         POINT_SET(self->root_pos,
2924                   self->frame->area.x + self->frame->size.left -
2925                   self->border_width,
2926                   self->frame->area.y + self->frame->size.top -
2927                   self->border_width);
2928
2929         event.type = ConfigureNotify;
2930         event.xconfigure.display = ob_display;
2931         event.xconfigure.event = self->window;
2932         event.xconfigure.window = self->window;
2933
2934         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2935                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2936
2937         /* root window real coords */
2938         event.xconfigure.x = self->root_pos.x;
2939         event.xconfigure.y = self->root_pos.y;
2940         event.xconfigure.width = w;
2941         event.xconfigure.height = h;
2942         event.xconfigure.border_width = self->border_width;
2943         event.xconfigure.above = None;
2944         event.xconfigure.override_redirect = FALSE;
2945         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2946                    FALSE, StructureNotifyMask, &event);
2947     }
2948
2949     /* if the client is shrinking, then resize the frame before the client.
2950
2951        both of these resize sections may run, because the top one only resizes
2952        in the direction that is growing
2953      */
2954     if (send_resize_client && (w <= oldw || h <= oldh)) {
2955         frame_adjust_client_area(self->frame);
2956         XMoveResizeWindow(ob_display, self->window,
2957                           self->frame->size.left, self->frame->size.top, w, h);
2958     }
2959
2960     XFlush(ob_display);
2961 }
2962
2963 void client_fullscreen(ObClient *self, gboolean fs)
2964 {
2965     gint x, y, w, h;
2966
2967     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2968         self->fullscreen == fs) return;                   /* already done */
2969
2970     self->fullscreen = fs;
2971     client_change_state(self); /* change the state hints on the client */
2972
2973     if (fs) {
2974         self->pre_fullscreen_area = self->area;
2975         /* if the window is maximized, its area isn't all that meaningful.
2976            save it's premax area instead. */
2977         if (self->max_horz) {
2978             self->pre_fullscreen_area.x = self->pre_max_area.x;
2979             self->pre_fullscreen_area.width = self->pre_max_area.width;
2980         }
2981         if (self->max_vert) {
2982             self->pre_fullscreen_area.y = self->pre_max_area.y;
2983             self->pre_fullscreen_area.height = self->pre_max_area.height;
2984         }
2985
2986         /* these will help configure_full figure out where to fullscreen
2987            the window */
2988         x = self->area.x;
2989         y = self->area.y;
2990         w = self->area.width;
2991         h = self->area.height;
2992     } else {
2993         g_assert(self->pre_fullscreen_area.width > 0 &&
2994                  self->pre_fullscreen_area.height > 0);
2995
2996         x = self->pre_fullscreen_area.x;
2997         y = self->pre_fullscreen_area.y;
2998         w = self->pre_fullscreen_area.width;
2999         h = self->pre_fullscreen_area.height;
3000         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3001     }
3002
3003     client_setup_decor_and_functions(self, FALSE);
3004     client_move_resize(self, x, y, w, h);
3005
3006     /* and adjust our layer/stacking. do this after resizing the window,
3007        and applying decorations, because windows which fill the screen are
3008        considered "fullscreen" and it affects their layer */
3009     client_calc_layer(self);
3010
3011     if (fs) {
3012         /* try focus us when we go into fullscreen mode */
3013         client_focus(self);
3014     }
3015 }
3016
3017 static void client_iconify_recursive(ObClient *self,
3018                                      gboolean iconic, gboolean curdesk,
3019                                      gboolean hide_animation)
3020 {
3021     GSList *it;
3022     gboolean changed = FALSE;
3023
3024
3025     if (self->iconic != iconic) {
3026         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3027                  self->window);
3028
3029         if (iconic) {
3030             /* don't let non-normal windows iconify along with their parents
3031                or whatever */
3032             if (client_normal(self)) {
3033                 self->iconic = iconic;
3034
3035                 /* update the focus lists.. iconic windows go to the bottom of
3036                    the list */
3037                 focus_order_to_bottom(self);
3038
3039                 changed = TRUE;
3040             }
3041         } else {
3042             self->iconic = iconic;
3043
3044             if (curdesk && self->desktop != screen_desktop &&
3045                 self->desktop != DESKTOP_ALL)
3046                 client_set_desktop(self, screen_desktop, FALSE);
3047
3048             /* this puts it after the current focused window */
3049             focus_order_remove(self);
3050             focus_order_add_new(self);
3051
3052             changed = TRUE;
3053         }
3054     }
3055
3056     if (changed) {
3057         client_change_state(self);
3058         if (config_animate_iconify && !hide_animation)
3059             frame_begin_iconify_animation(self->frame, iconic);
3060         /* do this after starting the animation so it doesn't flash */
3061         client_showhide(self);
3062     }
3063
3064     /* iconify all direct transients, and deiconify all transients
3065        (non-direct too) */
3066     for (it = self->transients; it; it = g_slist_next(it))
3067         if (it->data != self)
3068             if (client_is_direct_child(self, it->data) || !iconic)
3069                 client_iconify_recursive(it->data, iconic, curdesk,
3070                                          hide_animation);
3071 }
3072
3073 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3074                     gboolean hide_animation)
3075 {
3076     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3077         /* move up the transient chain as far as possible first */
3078         self = client_search_top_direct_parent(self);
3079         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3080     }
3081 }
3082
3083 void client_maximize(ObClient *self, gboolean max, gint dir)
3084 {
3085     gint x, y, w, h;
3086
3087     g_assert(dir == 0 || dir == 1 || dir == 2);
3088     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3089
3090     /* check if already done */
3091     if (max) {
3092         if (dir == 0 && self->max_horz && self->max_vert) return;
3093         if (dir == 1 && self->max_horz) return;
3094         if (dir == 2 && self->max_vert) return;
3095     } else {
3096         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3097         if (dir == 1 && !self->max_horz) return;
3098         if (dir == 2 && !self->max_vert) return;
3099     }
3100
3101     /* these will help configure_full figure out which screen to fill with
3102        the window */
3103     x = self->area.x;
3104     y = self->area.y;
3105     w = self->area.width;
3106     h = self->area.height;
3107
3108     if (max) {
3109         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3110             RECT_SET(self->pre_max_area,
3111                      self->area.x, self->pre_max_area.y,
3112                      self->area.width, self->pre_max_area.height);
3113         }
3114         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3115             RECT_SET(self->pre_max_area,
3116                      self->pre_max_area.x, self->area.y,
3117                      self->pre_max_area.width, self->area.height);
3118         }
3119     } else {
3120         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3121             g_assert(self->pre_max_area.width > 0);
3122
3123             x = self->pre_max_area.x;
3124             w = self->pre_max_area.width;
3125
3126             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3127                      0, self->pre_max_area.height);
3128         }
3129         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3130             g_assert(self->pre_max_area.height > 0);
3131
3132             y = self->pre_max_area.y;
3133             h = self->pre_max_area.height;
3134
3135             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3136                      self->pre_max_area.width, 0);
3137         }
3138     }
3139
3140     if (dir == 0 || dir == 1) /* horz */
3141         self->max_horz = max;
3142     if (dir == 0 || dir == 2) /* vert */
3143         self->max_vert = max;
3144
3145     client_change_state(self); /* change the state hints on the client */
3146
3147     client_setup_decor_and_functions(self, FALSE);
3148     client_move_resize(self, x, y, w, h);
3149 }
3150
3151 void client_shade(ObClient *self, gboolean shade)
3152 {
3153     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3154          shade) ||                         /* can't shade */
3155         self->shaded == shade) return;     /* already done */
3156
3157     self->shaded = shade;
3158     client_change_state(self);
3159     client_change_wm_state(self); /* the window is being hidden/shown */
3160     /* resize the frame to just the titlebar */
3161     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3162 }
3163
3164 void client_close(ObClient *self)
3165 {
3166     XEvent ce;
3167
3168     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3169
3170     /* in the case that the client provides no means to requesting that it
3171        close, we just kill it */
3172     if (!self->delete_window)
3173         client_kill(self);
3174
3175     /*
3176       XXX: itd be cool to do timeouts and shit here for killing the client's
3177       process off
3178       like... if the window is around after 5 seconds, then the close button
3179       turns a nice red, and if this function is called again, the client is
3180       explicitly killed.
3181     */
3182
3183     ce.xclient.type = ClientMessage;
3184     ce.xclient.message_type =  prop_atoms.wm_protocols;
3185     ce.xclient.display = ob_display;
3186     ce.xclient.window = self->window;
3187     ce.xclient.format = 32;
3188     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3189     ce.xclient.data.l[1] = event_curtime;
3190     ce.xclient.data.l[2] = 0l;
3191     ce.xclient.data.l[3] = 0l;
3192     ce.xclient.data.l[4] = 0l;
3193     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3194 }
3195
3196 void client_kill(ObClient *self)
3197 {
3198     XKillClient(ob_display, self->window);
3199 }
3200
3201 void client_hilite(ObClient *self, gboolean hilite)
3202 {
3203     if (self->demands_attention == hilite)
3204         return; /* no change */
3205
3206     /* don't allow focused windows to hilite */
3207     self->demands_attention = hilite && !client_focused(self);
3208     if (self->frame != NULL) { /* if we're mapping, just set the state */
3209         if (self->demands_attention)
3210             frame_flash_start(self->frame);
3211         else
3212             frame_flash_stop(self->frame);
3213         client_change_state(self);
3214     }
3215 }
3216
3217 void client_set_desktop_recursive(ObClient *self,
3218                                   guint target,
3219                                   gboolean donthide)
3220 {
3221     guint old;
3222     GSList *it;
3223
3224     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3225
3226         ob_debug("Setting desktop %u\n", target+1);
3227
3228         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3229
3230         old = self->desktop;
3231         self->desktop = target;
3232         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3233         /* the frame can display the current desktop state */
3234         frame_adjust_state(self->frame);
3235         /* 'move' the window to the new desktop */
3236         if (!donthide)
3237             client_showhide(self);
3238         /* raise if it was not already on the desktop */
3239         if (old != DESKTOP_ALL)
3240             stacking_raise(CLIENT_AS_WINDOW(self));
3241         /* the new desktop's geometry may be different, so we may need to
3242            resize, for example if we are maximized */
3243         client_reconfigure(self);
3244         if (STRUT_EXISTS(self->strut))
3245             screen_update_areas();
3246     }
3247
3248     /* move all transients */
3249     for (it = self->transients; it; it = g_slist_next(it))
3250         if (it->data != self)
3251             if (client_is_direct_child(self, it->data))
3252                 client_set_desktop_recursive(it->data, target, donthide);
3253 }
3254
3255 void client_set_desktop(ObClient *self, guint target, gboolean donthide)
3256 {
3257     self = client_search_top_direct_parent(self);
3258     client_set_desktop_recursive(self, target, donthide);
3259 }
3260
3261 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3262 {
3263     while (child != parent && (child = client_direct_parent(child)));
3264     return child == parent;
3265 }
3266
3267 ObClient *client_search_modal_child(ObClient *self)
3268 {
3269     GSList *it;
3270     ObClient *ret;
3271
3272     for (it = self->transients; it; it = g_slist_next(it)) {
3273         ObClient *c = it->data;
3274         if ((ret = client_search_modal_child(c))) return ret;
3275         if (c->modal) return c;
3276     }
3277     return NULL;
3278 }
3279
3280 gboolean client_validate(ObClient *self)
3281 {
3282     XEvent e;
3283
3284     XSync(ob_display, FALSE); /* get all events on the server */
3285
3286     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3287         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3288         XPutBackEvent(ob_display, &e);
3289         return FALSE;
3290     }
3291
3292     return TRUE;
3293 }
3294
3295 void client_set_wm_state(ObClient *self, glong state)
3296 {
3297     if (state == self->wmstate) return; /* no change */
3298
3299     switch (state) {
3300     case IconicState:
3301         client_iconify(self, TRUE, TRUE, FALSE);
3302         break;
3303     case NormalState:
3304         client_iconify(self, FALSE, TRUE, FALSE);
3305         break;
3306     }
3307 }
3308
3309 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3310 {
3311     gboolean shaded = self->shaded;
3312     gboolean fullscreen = self->fullscreen;
3313     gboolean undecorated = self->undecorated;
3314     gboolean max_horz = self->max_horz;
3315     gboolean max_vert = self->max_vert;
3316     gboolean modal = self->modal;
3317     gboolean iconic = self->iconic;
3318     gboolean demands_attention = self->demands_attention;
3319     gboolean above = self->above;
3320     gboolean below = self->below;
3321     gint i;
3322
3323     if (!(action == prop_atoms.net_wm_state_add ||
3324           action == prop_atoms.net_wm_state_remove ||
3325           action == prop_atoms.net_wm_state_toggle))
3326         /* an invalid action was passed to the client message, ignore it */
3327         return;
3328
3329     for (i = 0; i < 2; ++i) {
3330         Atom state = i == 0 ? data1 : data2;
3331
3332         if (!state) continue;
3333
3334         /* if toggling, then pick whether we're adding or removing */
3335         if (action == prop_atoms.net_wm_state_toggle) {
3336             if (state == prop_atoms.net_wm_state_modal)
3337                 action = modal ? prop_atoms.net_wm_state_remove :
3338                     prop_atoms.net_wm_state_add;
3339             else if (state == prop_atoms.net_wm_state_maximized_vert)
3340                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3341                     prop_atoms.net_wm_state_add;
3342             else if (state == prop_atoms.net_wm_state_maximized_horz)
3343                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3344                     prop_atoms.net_wm_state_add;
3345             else if (state == prop_atoms.net_wm_state_shaded)
3346                 action = shaded ? prop_atoms.net_wm_state_remove :
3347                     prop_atoms.net_wm_state_add;
3348             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3349                 action = self->skip_taskbar ?
3350                     prop_atoms.net_wm_state_remove :
3351                     prop_atoms.net_wm_state_add;
3352             else if (state == prop_atoms.net_wm_state_skip_pager)
3353                 action = self->skip_pager ?
3354                     prop_atoms.net_wm_state_remove :
3355                     prop_atoms.net_wm_state_add;
3356             else if (state == prop_atoms.net_wm_state_hidden)
3357                 action = self->iconic ?
3358                     prop_atoms.net_wm_state_remove :
3359                     prop_atoms.net_wm_state_add;
3360             else if (state == prop_atoms.net_wm_state_fullscreen)
3361                 action = fullscreen ?
3362                     prop_atoms.net_wm_state_remove :
3363                     prop_atoms.net_wm_state_add;
3364             else if (state == prop_atoms.net_wm_state_above)
3365                 action = self->above ? prop_atoms.net_wm_state_remove :
3366                     prop_atoms.net_wm_state_add;
3367             else if (state == prop_atoms.net_wm_state_below)
3368                 action = self->below ? prop_atoms.net_wm_state_remove :
3369                     prop_atoms.net_wm_state_add;
3370             else if (state == prop_atoms.net_wm_state_demands_attention)
3371                 action = self->demands_attention ?
3372                     prop_atoms.net_wm_state_remove :
3373                     prop_atoms.net_wm_state_add;
3374             else if (state == prop_atoms.ob_wm_state_undecorated)
3375                 action = undecorated ? prop_atoms.net_wm_state_remove :
3376                     prop_atoms.net_wm_state_add;
3377         }
3378
3379         if (action == prop_atoms.net_wm_state_add) {
3380             if (state == prop_atoms.net_wm_state_modal) {
3381                 modal = TRUE;
3382             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3383                 max_vert = TRUE;
3384             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3385                 max_horz = TRUE;
3386             } else if (state == prop_atoms.net_wm_state_shaded) {
3387                 shaded = TRUE;
3388             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3389                 self->skip_taskbar = TRUE;
3390             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3391                 self->skip_pager = TRUE;
3392             } else if (state == prop_atoms.net_wm_state_hidden) {
3393                 iconic = TRUE;
3394             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3395                 fullscreen = TRUE;
3396             } else if (state == prop_atoms.net_wm_state_above) {
3397                 above = TRUE;
3398                 below = FALSE;
3399             } else if (state == prop_atoms.net_wm_state_below) {
3400                 above = FALSE;
3401                 below = TRUE;
3402             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3403                 demands_attention = TRUE;
3404             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3405                 undecorated = TRUE;
3406             }
3407
3408         } else { /* action == prop_atoms.net_wm_state_remove */
3409             if (state == prop_atoms.net_wm_state_modal) {
3410                 modal = FALSE;
3411             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3412                 max_vert = FALSE;
3413             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3414                 max_horz = FALSE;
3415             } else if (state == prop_atoms.net_wm_state_shaded) {
3416                 shaded = FALSE;
3417             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3418                 self->skip_taskbar = FALSE;
3419             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3420                 self->skip_pager = FALSE;
3421             } else if (state == prop_atoms.net_wm_state_hidden) {
3422                 iconic = FALSE;
3423             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3424                 fullscreen = FALSE;
3425             } else if (state == prop_atoms.net_wm_state_above) {
3426                 above = FALSE;
3427             } else if (state == prop_atoms.net_wm_state_below) {
3428                 below = FALSE;
3429             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3430                 demands_attention = FALSE;
3431             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3432                 undecorated = FALSE;
3433             }
3434         }
3435     }
3436
3437     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3438         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3439             /* toggling both */
3440             if (max_horz == max_vert) { /* both going the same way */
3441                 client_maximize(self, max_horz, 0);
3442             } else {
3443                 client_maximize(self, max_horz, 1);
3444                 client_maximize(self, max_vert, 2);
3445             }
3446         } else {
3447             /* toggling one */
3448             if (max_horz != self->max_horz)
3449                 client_maximize(self, max_horz, 1);
3450             else
3451                 client_maximize(self, max_vert, 2);
3452         }
3453     }
3454     /* change fullscreen state before shading, as it will affect if the window
3455        can shade or not */
3456     if (fullscreen != self->fullscreen)
3457         client_fullscreen(self, fullscreen);
3458     if (shaded != self->shaded)
3459         client_shade(self, shaded);
3460     if (undecorated != self->undecorated)
3461         client_set_undecorated(self, undecorated);
3462     if (above != self->above || below != self->below) {
3463         self->above = above;
3464         self->below = below;
3465         client_calc_layer(self);
3466     }
3467
3468     if (modal != self->modal) {
3469         self->modal = modal;
3470         /* when a window changes modality, then its stacking order with its
3471            transients needs to change */
3472         stacking_raise(CLIENT_AS_WINDOW(self));
3473
3474         /* it also may get focused. if something is focused that shouldn't
3475            be focused anymore, then move the focus */
3476         if (focus_client && client_focus_target(focus_client) != focus_client)
3477             client_focus(focus_client);
3478     }
3479
3480     if (iconic != self->iconic)
3481         client_iconify(self, iconic, FALSE, FALSE);
3482
3483     if (demands_attention != self->demands_attention)
3484         client_hilite(self, demands_attention);
3485
3486     client_change_state(self); /* change the hint to reflect these changes */
3487 }
3488
3489 ObClient *client_focus_target(ObClient *self)
3490 {
3491     ObClient *child = NULL;
3492
3493     child = client_search_modal_child(self);
3494     if (child) return child;
3495     return self;
3496 }
3497
3498 gboolean client_can_focus(ObClient *self)
3499 {
3500     /* choose the correct target */
3501     self = client_focus_target(self);
3502
3503     if (!self->frame->visible)
3504         return FALSE;
3505
3506     if (!(self->can_focus || self->focus_notify))
3507         return FALSE;
3508
3509     return TRUE;
3510 }
3511
3512 gboolean client_focus(ObClient *self)
3513 {
3514     /* we might not focus this window, so if we have modal children which would
3515        be focused instead, bring them to this desktop */
3516     client_bring_modal_windows(self);
3517
3518     /* choose the correct target */
3519     self = client_focus_target(self);
3520
3521     if (!client_can_focus(self)) {
3522         ob_debug_type(OB_DEBUG_FOCUS,
3523                       "Client %s can't be focused\n", self->title);
3524         return FALSE;
3525     }
3526
3527     ob_debug_type(OB_DEBUG_FOCUS,
3528                   "Focusing client \"%s\" (0x%x) at time %u\n",
3529                   self->title, self->window, event_curtime);
3530
3531     /* if there is a grab going on, then we need to cancel it. if we move
3532        focus during the grab, applications will get NotifyWhileGrabbed events
3533        and ignore them !
3534
3535        actions should not rely on being able to move focus during an
3536        interactive grab.
3537     */
3538     event_cancel_all_key_grabs();
3539
3540     xerror_set_ignore(TRUE);
3541     xerror_occured = FALSE;
3542
3543     if (self->can_focus) {
3544         /* This can cause a BadMatch error with CurrentTime, or if an app
3545            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3546         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3547                        event_curtime);
3548     }
3549
3550     if (self->focus_notify) {
3551         XEvent ce;
3552         ce.xclient.type = ClientMessage;
3553         ce.xclient.message_type = prop_atoms.wm_protocols;
3554         ce.xclient.display = ob_display;
3555         ce.xclient.window = self->window;
3556         ce.xclient.format = 32;
3557         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3558         ce.xclient.data.l[1] = event_curtime;
3559         ce.xclient.data.l[2] = 0l;
3560         ce.xclient.data.l[3] = 0l;
3561         ce.xclient.data.l[4] = 0l;
3562         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3563     }
3564
3565     xerror_set_ignore(FALSE);
3566
3567     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3568     return !xerror_occured;
3569 }
3570
3571 /*! Present the client to the user.
3572   @param raise If the client should be raised or not. You should only set
3573                raise to false if you don't care if the window is completely
3574                hidden.
3575 */
3576 static void client_present(ObClient *self, gboolean here, gboolean raise)
3577 {
3578     /* if using focus_delay, stop the timer now so that focus doesn't
3579        go moving on us */
3580     event_halt_focus_delay();
3581
3582     if (client_normal(self) && screen_showing_desktop)
3583         screen_show_desktop(FALSE, self);
3584     if (self->iconic)
3585         client_iconify(self, FALSE, here, FALSE);
3586     if (self->desktop != DESKTOP_ALL &&
3587         self->desktop != screen_desktop)
3588     {
3589         if (here)
3590             client_set_desktop(self, screen_desktop, FALSE);
3591         else
3592             screen_set_desktop(self->desktop, FALSE);
3593     } else if (!self->frame->visible)
3594         /* if its not visible for other reasons, then don't mess
3595            with it */
3596         return;
3597     if (self->shaded)
3598         client_shade(self, FALSE);
3599     if (raise)
3600         stacking_raise(CLIENT_AS_WINDOW(self));
3601
3602     client_focus(self);
3603 }
3604
3605 void client_activate(ObClient *self, gboolean here, gboolean user)
3606 {
3607     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3608     gboolean allow = FALSE;
3609
3610     /* if the currently focused app doesn't set a user_time, then it can't
3611        benefit from any focus stealing prevention.
3612
3613        if the timestamp is missing in the request then let it go through
3614        even if it is source=app, because EVERY APPLICATION DOES THIS because
3615        GTK IS VERY BUGGY AND HARDCODES source=application... WHY!?
3616     */
3617     if (!last_time || !event_curtime)
3618         allow = TRUE;
3619     /* otherwise, if they didn't give a time stamp or if it is too old, they
3620        don't get focus */
3621     else
3622         allow = event_time_after(event_curtime, last_time);
3623
3624     ob_debug_type(OB_DEBUG_FOCUS,
3625                   "Want to activate window 0x%x with time %u (last time %u), "
3626                   "source=%s allowing? %d\n",
3627                   self->window, event_curtime, last_time,
3628                   (user ? "user" : "application"), allow);
3629
3630     if (allow)
3631         client_present(self, here, TRUE);
3632     else
3633         /* don't focus it but tell the user it wants attention */
3634         client_hilite(self, TRUE);
3635 }
3636
3637 static void client_bring_windows_recursive(ObClient *self,
3638                                            guint desktop,
3639                                            gboolean helpers,
3640                                            gboolean modals,
3641                                            gboolean iconic)
3642 {
3643     GSList *it;
3644
3645     for (it = self->transients; it; it = g_slist_next(it))
3646         client_bring_windows_recursive(it->data, desktop,
3647                                        helpers, modals, iconic);
3648
3649     if (((helpers && client_helper(self)) ||
3650          (modals && self->modal)) &&
3651         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3652          (iconic && self->iconic)))
3653     {
3654         if (iconic && self->iconic)
3655             client_iconify(self, FALSE, TRUE, FALSE);
3656         else
3657             client_set_desktop(self, desktop, FALSE);
3658     }
3659 }
3660
3661 void client_bring_helper_windows(ObClient *self)
3662 {
3663     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3664 }
3665
3666 void client_bring_modal_windows(ObClient *self)
3667 {
3668     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3669 }
3670
3671 gboolean client_focused(ObClient *self)
3672 {
3673     return self == focus_client;
3674 }
3675
3676 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3677 {
3678     guint i;
3679     gulong min_diff, min_i;
3680
3681     if (!self->nicons) {
3682         ObClientIcon *parent = NULL;
3683         GSList *it;
3684
3685         for (it = self->parents; it; it = g_slist_next(it)) {
3686             ObClient *c = it->data;
3687             if ((parent = client_icon_recursive(c, w, h)))
3688                 break;
3689         }
3690
3691         return parent;
3692     }
3693
3694     /* some kind of crappy approximation to find the icon closest in size to
3695        what we requested, but icons are generally all the same ratio as
3696        eachother so it's good enough. */
3697
3698     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3699     min_i = 0;
3700
3701     for (i = 1; i < self->nicons; ++i) {
3702         gulong diff;
3703
3704         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3705         if (diff < min_diff) {
3706             min_diff = diff;
3707             min_i = i;
3708         }
3709     }
3710     return &self->icons[min_i];
3711 }
3712
3713 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3714 {
3715     ObClientIcon *ret;
3716     static ObClientIcon deficon;
3717
3718     if (!(ret = client_icon_recursive(self, w, h))) {
3719         deficon.width = deficon.height = 48;
3720         deficon.data = ob_rr_theme->def_win_icon;
3721         ret = &deficon;
3722     }
3723     return ret;
3724 }
3725
3726 void client_set_layer(ObClient *self, gint layer)
3727 {
3728     if (layer < 0) {
3729         self->below = TRUE;
3730         self->above = FALSE;
3731     } else if (layer == 0) {
3732         self->below = self->above = FALSE;
3733     } else {
3734         self->below = FALSE;
3735         self->above = TRUE;
3736     }
3737     client_calc_layer(self);
3738     client_change_state(self); /* reflect this in the state hints */
3739 }
3740
3741 void client_set_undecorated(ObClient *self, gboolean undecorated)
3742 {
3743     if (self->undecorated != undecorated &&
3744         /* don't let it undecorate if the function is missing, but let
3745            it redecorate */
3746         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3747     {
3748         self->undecorated = undecorated;
3749         client_setup_decor_and_functions(self, TRUE);
3750         client_change_state(self); /* reflect this in the state hints */
3751     }
3752 }
3753
3754 guint client_monitor(ObClient *self)
3755 {
3756     return screen_find_monitor(&self->frame->area);
3757 }
3758
3759 ObClient *client_direct_parent(ObClient *self)
3760 {
3761     if (!self->parents) return NULL;
3762     if (self->transient_for_group) return NULL;
3763     return self->parents->data;
3764 }
3765
3766 ObClient *client_search_top_direct_parent(ObClient *self)
3767 {
3768     ObClient *p;
3769     while ((p = client_direct_parent(self))) self = p;
3770     return self;
3771 }
3772
3773 static GSList *client_search_all_top_parents_internal(ObClient *self,
3774                                                       gboolean bylayer,
3775                                                       ObStackingLayer layer)
3776 {
3777     GSList *ret;
3778     ObClient *p;
3779
3780     /* move up the direct transient chain as far as possible */
3781     while ((p = client_direct_parent(self)) &&
3782            (!bylayer || p->layer == layer))
3783         self = p;
3784
3785     if (!self->parents)
3786         ret = g_slist_prepend(NULL, self);
3787     else
3788         ret = g_slist_copy(self->parents);
3789
3790     return ret;
3791 }
3792
3793 GSList *client_search_all_top_parents(ObClient *self)
3794 {
3795     return client_search_all_top_parents_internal(self, FALSE, 0);
3796 }
3797
3798 GSList *client_search_all_top_parents_layer(ObClient *self)
3799 {
3800     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3801 }
3802
3803 ObClient *client_search_focus_parent(ObClient *self)
3804 {
3805     GSList *it;
3806
3807     for (it = self->parents; it; it = g_slist_next(it))
3808         if (client_focused(it->data)) return it->data;
3809
3810     return NULL;
3811 }
3812
3813 ObClient *client_search_parent(ObClient *self, ObClient *search)
3814 {
3815     GSList *it;
3816
3817     for (it = self->parents; it; it = g_slist_next(it))
3818         if (it->data == search) return search;
3819
3820     return NULL;
3821 }
3822
3823 ObClient *client_search_transient(ObClient *self, ObClient *search)
3824 {
3825     GSList *sit;
3826
3827     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3828         if (sit->data == search)
3829             return search;
3830         if (client_search_transient(sit->data, search))
3831             return search;
3832     }
3833     return NULL;
3834 }
3835
3836 #define WANT_EDGE(cur, c) \
3837             if (cur == c)                                                     \
3838                 continue;                                                     \
3839             if (c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&  \
3840                 cur->desktop != screen_desktop)                               \
3841                 continue;                                                     \
3842             if (cur->iconic)                                                  \
3843                 continue;
3844
3845 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3846             if ((his_edge_start >= my_edge_start && \
3847                  his_edge_start <= my_edge_end) ||  \
3848                 (my_edge_start >= his_edge_start && \
3849                  my_edge_start <= his_edge_end))    \
3850                 dest = his_offset;
3851
3852 /* finds the nearest edge in the given direction from the current client
3853  * note to self: the edge is the -frame- edge (the actual one), not the
3854  * client edge.
3855  */
3856 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3857 {
3858     gint dest, monitor_dest;
3859     gint my_edge_start, my_edge_end, my_offset;
3860     GList *it;
3861     Rect *a, *monitor;
3862
3863     if(!client_list)
3864         return -1;
3865
3866     a = screen_area(c->desktop);
3867     monitor = screen_area_monitor(c->desktop, client_monitor(c));
3868
3869     switch(dir) {
3870     case OB_DIRECTION_NORTH:
3871         my_edge_start = c->frame->area.x;
3872         my_edge_end = c->frame->area.x + c->frame->area.width;
3873         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3874
3875         /* default: top of screen */
3876         dest = a->y + (hang ? c->frame->area.height : 0);
3877         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3878         /* if the monitor edge comes before the screen edge, */
3879         /* use that as the destination instead. (For xinerama) */
3880         if (monitor_dest != dest && my_offset > monitor_dest)
3881             dest = monitor_dest;
3882
3883         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3884             gint his_edge_start, his_edge_end, his_offset;
3885             ObClient *cur = it->data;
3886
3887             WANT_EDGE(cur, c)
3888
3889             his_edge_start = cur->frame->area.x;
3890             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3891             his_offset = cur->frame->area.y +
3892                          (hang ? 0 : cur->frame->area.height);
3893
3894             if(his_offset + 1 > my_offset)
3895                 continue;
3896
3897             if(his_offset < dest)
3898                 continue;
3899
3900             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3901         }
3902         break;
3903     case OB_DIRECTION_SOUTH:
3904         my_edge_start = c->frame->area.x;
3905         my_edge_end = c->frame->area.x + c->frame->area.width;
3906         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3907
3908         /* default: bottom of screen */
3909         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3910         monitor_dest = monitor->y + monitor->height -
3911                        (hang ? c->frame->area.height : 0);
3912         /* if the monitor edge comes before the screen edge, */
3913         /* use that as the destination instead. (For xinerama) */
3914         if (monitor_dest != dest && my_offset < monitor_dest)
3915             dest = monitor_dest;
3916
3917         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3918             gint his_edge_start, his_edge_end, his_offset;
3919             ObClient *cur = it->data;
3920
3921             WANT_EDGE(cur, c)
3922
3923             his_edge_start = cur->frame->area.x;
3924             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3925             his_offset = cur->frame->area.y +
3926                          (hang ? cur->frame->area.height : 0);
3927
3928
3929             if(his_offset - 1 < my_offset)
3930                 continue;
3931
3932             if(his_offset > dest)
3933                 continue;
3934
3935             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3936         }
3937         break;
3938     case OB_DIRECTION_WEST:
3939         my_edge_start = c->frame->area.y;
3940         my_edge_end = c->frame->area.y + c->frame->area.height;
3941         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3942
3943         /* default: leftmost egde of screen */
3944         dest = a->x + (hang ? c->frame->area.width : 0);
3945         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3946         /* if the monitor edge comes before the screen edge, */
3947         /* use that as the destination instead. (For xinerama) */
3948         if (monitor_dest != dest && my_offset > monitor_dest)
3949             dest = monitor_dest;
3950
3951         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3952             gint his_edge_start, his_edge_end, his_offset;
3953             ObClient *cur = it->data;
3954
3955             WANT_EDGE(cur, c)
3956
3957             his_edge_start = cur->frame->area.y;
3958             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3959             his_offset = cur->frame->area.x +
3960                          (hang ? 0 : cur->frame->area.width);
3961
3962             if(his_offset + 1 > my_offset)
3963                 continue;
3964
3965             if(his_offset < dest)
3966                 continue;
3967
3968             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3969         }
3970        break;
3971     case OB_DIRECTION_EAST:
3972         my_edge_start = c->frame->area.y;
3973         my_edge_end = c->frame->area.y + c->frame->area.height;
3974         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3975
3976         /* default: rightmost edge of screen */
3977         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3978         monitor_dest = monitor->x + monitor->width -
3979                        (hang ? c->frame->area.width : 0);
3980         /* if the monitor edge comes before the screen edge, */
3981         /* use that as the destination instead. (For xinerama) */
3982         if (monitor_dest != dest && my_offset < monitor_dest)
3983             dest = monitor_dest;
3984
3985         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3986             gint his_edge_start, his_edge_end, his_offset;
3987             ObClient *cur = it->data;
3988
3989             WANT_EDGE(cur, c)
3990
3991             his_edge_start = cur->frame->area.y;
3992             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3993             his_offset = cur->frame->area.x +
3994                          (hang ? cur->frame->area.width : 0);
3995
3996             if(his_offset - 1 < my_offset)
3997                 continue;
3998
3999             if(his_offset > dest)
4000                 continue;
4001
4002             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4003         }
4004         break;
4005     case OB_DIRECTION_NORTHEAST:
4006     case OB_DIRECTION_SOUTHEAST:
4007     case OB_DIRECTION_NORTHWEST:
4008     case OB_DIRECTION_SOUTHWEST:
4009         /* not implemented */
4010     default:
4011         g_assert_not_reached();
4012         dest = 0; /* suppress warning */
4013     }
4014     return dest;
4015 }
4016
4017 ObClient* client_under_pointer()
4018 {
4019     gint x, y;
4020     GList *it;
4021     ObClient *ret = NULL;
4022
4023     if (screen_pointer_pos(&x, &y)) {
4024         for (it = stacking_list; it; it = g_list_next(it)) {
4025             if (WINDOW_IS_CLIENT(it->data)) {
4026                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4027                 if (c->frame->visible &&
4028                     /* check the desktop, this is done during desktop
4029                        switching and windows are shown/hidden status is not
4030                        reliable */
4031                     (c->desktop == screen_desktop ||
4032                      c->desktop == DESKTOP_ALL) &&
4033                     /* ignore all animating windows */
4034                     !frame_iconify_animating(c->frame) &&
4035                     RECT_CONTAINS(c->frame->area, x, y))
4036                 {
4037                     ret = c;
4038                     break;
4039                 }
4040             }
4041         }
4042     }
4043     return ret;
4044 }
4045
4046 gboolean client_has_group_siblings(ObClient *self)
4047 {
4048     return self->group && self->group->members->next;
4049 }