openbox/client.c

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