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