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 "screen.h"
  25 #include "moveresize.h"
  26 #include "ping.h"
  27 #include "place.h"
  28 #include "frame.h"
  29 #include "session.h"
  30 #include "event.h"
  31 #include "grab.h"
  32 #include "prompt.h"
  33 #include "focus.h"
  34 #include "focus_cycle.h"
  35 #include "stacking.h"
  36 #include "openbox.h"
  37 #include "hooks.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 #include "gettext.h"
  45 #include "obt/display.h"
  46 #include "obt/prop.h"
  47
  48 #ifdef HAVE_UNISTD_H
  49 #  include <unistd.h>
  50 #endif
  51
  52 #ifdef HAVE_SIGNAL_H
  53 #  include <signal.h> /* for kill() */
  54 #endif
  55
  56 #include <glib.h>
  57 #include <X11/Xutil.h>
  58
  59 /*! The event mask to grab on client windows */
  60 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  61                           ColormapChangeMask)
  62
  63 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  64                                 ButtonMotionMask)
  65
  66 typedef struct
  67 {
  68     ObClientCallback func;
  69     gpointer data;
  70 } ClientCallback;
  71
  72 GList          *client_list             = NULL;
  73
  74 static GSList  *client_destroy_notifies = NULL;
  75 static RrImage *client_default_icon     = NULL;
  76
  77 static void client_get_all(ObClient *self, gboolean real);
  78 static void client_get_startup_id(ObClient *self);
  79 static void client_get_session_ids(ObClient *self);
  80 static void client_get_area(ObClient *self);
  81 static void client_get_desktop(ObClient *self);
  82 static void client_get_state(ObClient *self);
  83 static void client_get_shaped(ObClient *self);
  84 static void client_get_mwm_hints(ObClient *self);
  85 static void client_get_colormap(ObClient *self);
  86 static void client_set_desktop_recursive(ObClient *self,
  87                                          guint target,
  88                                          gboolean donthide,
  89                                          gboolean dontraise);
  90 static void client_change_allowed_actions(ObClient *self);
  91 static void client_change_state(ObClient *self);
  92 static void client_change_wm_state(ObClient *self);
  93 static void client_apply_startup_state(ObClient *self,
  94                                        gint x, gint y, gint w, gint h);
  95 static void client_restore_session_state(ObClient *self);
  96 static gboolean client_restore_session_stacking(ObClient *self);
  97 static ObAppSettings *client_get_settings_state(ObClient *self);
  98 static void client_update_transient_tree(ObClient *self,
  99                                          ObGroup *oldgroup, ObGroup *newgroup,
 100                                          gboolean oldgtran, gboolean newgtran,
 101                                          ObClient* oldparent,
 102                                          ObClient *newparent);
 103 static void client_present(ObClient *self, gboolean here, gboolean raise,
 104                            gboolean unshade);
 105 static GSList *client_search_all_top_parents_internal(ObClient *self,
 106                                                       gboolean bylayer,
 107                                                       ObStackingLayer layer);
 108 static void client_call_notifies(ObClient *self, GSList *list);
 109 static void client_ping_event(ObClient *self, gboolean dead);
 110 static void client_prompt_kill(ObClient *self);
 111
 112 void client_startup(gboolean reconfig)
 113 {
 114     if ((client_default_icon = RrImageCacheFind(ob_rr_icons,
 115                                                 ob_rr_theme->def_win_icon,
 116                                                 ob_rr_theme->def_win_icon_w,
 117                                                 ob_rr_theme->def_win_icon_h)))
 118         RrImageRef(client_default_icon);
 119     else {
 120         client_default_icon = RrImageNew(ob_rr_icons);
 121         RrImageAddPicture(client_default_icon,
 122                           ob_rr_theme->def_win_icon,
 123                           ob_rr_theme->def_win_icon_w,
 124                           ob_rr_theme->def_win_icon_h);
 125     }
 126
 127     if (reconfig) return;
 128
 129     client_set_list();
 130 }
 131
 132 void client_shutdown(gboolean reconfig)
 133 {
 134     RrImageUnref(client_default_icon);
 135     client_default_icon = NULL;
 136
 137     if (reconfig) return;
 138 }
 139
 140 static void client_call_notifies(ObClient *self, GSList *list)
 141 {
 142     GSList *it;
 143
 144     for (it = list; it; it = g_slist_next(it)) {
 145         ClientCallback *d = it->data;
 146         d->func(self, d->data);
 147     }
 148 }
 149
 150 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 151 {
 152     ClientCallback *d = g_new(ClientCallback, 1);
 153     d->func = func;
 154     d->data = data;
 155     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 156 }
 157
 158 void client_remove_destroy_notify(ObClientCallback func)
 159 {
 160     GSList *it;
 161
 162     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 163         ClientCallback *d = it->data;
 164         if (d->func == func) {
 165             g_free(d);
 166             client_destroy_notifies =
 167                 g_slist_delete_link(client_destroy_notifies, it);
 168             break;
 169         }
 170     }
 171 }
 172
 173 void client_set_list(void)
 174 {
 175     Window *windows, *win_it;
 176     GList *it;
 177     guint size = g_list_length(client_list);
 178
 179     /* create an array of the window ids */
 180     if (size > 0) {
 181         windows = g_new(Window, size);
 182         win_it = windows;
 183         for (it = client_list; it; it = g_list_next(it), ++win_it)
 184             *win_it = ((ObClient*)it->data)->window;
 185     } else
 186         windows = NULL;
 187
 188     OBT_PROP_SETA32(obt_root(ob_screen), NET_CLIENT_LIST, WINDOW,
 189                     (gulong*)windows, size);
 190
 191     if (windows)
 192         g_free(windows);
 193
 194     stacking_set_list();
 195 }
 196
 197 void client_manage(Window window, ObPrompt *prompt)
 198 {
 199     ObClient *self;
 200     XSetWindowAttributes attrib_set;
 201     gboolean activate = FALSE;
 202     ObAppSettings *settings;
 203     gboolean transient = FALSE;
 204     Rect place, *monitor;
 205     Time launch_time, map_time;
 206
 207     ob_debug("Managing window: 0x%lx", window);
 208
 209     map_time = event_get_server_time();
 210
 211     /* choose the events we want to receive on the CLIENT window
 212        (ObPrompt windows can request events too) */
 213     attrib_set.event_mask = CLIENT_EVENTMASK |
 214         (prompt ? prompt->event_mask : 0);
 215     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 216     XChangeWindowAttributes(obt_display, window,
 217                             CWEventMask|CWDontPropagate, &attrib_set);
 218
 219     /* create the ObClient struct, and populate it from the hints on the
 220        window */
 221     self = g_new0(ObClient, 1);
 222     self->obwin.type = OB_WINDOW_CLASS_CLIENT;
 223     self->window = window;
 224     self->prompt = prompt;
 225
 226     /* non-zero defaults */
 227     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 228     self->gravity = NorthWestGravity;
 229     self->desktop = screen_num_desktops; /* always an invalid value */
 230
 231     /* get all the stuff off the window */
 232     client_get_all(self, TRUE);
 233
 234     ob_debug("Window type: %d", self->type);
 235     ob_debug("Window group: 0x%x", self->group?self->group->leader:0);
 236
 237     /* now we have all of the window's information so we can set this up.
 238        do this before creating the frame, so it can tell that we are still
 239        mapping and doesn't go applying things right away */
 240     client_setup_decor_and_functions(self, FALSE);
 241
 242     /* specify that if we exit, the window should not be destroyed and
 243        should be reparented back to root automatically, unless we are managing
 244        an internal ObPrompt window  */
 245     if (!self->prompt)
 246         XChangeSaveSet(obt_display, window, SetModeInsert);
 247
 248     /* create the decoration frame for the client window */
 249     self->frame = frame_new(self);
 250
 251     frame_grab_client(self->frame);
 252
 253     /* we've grabbed everything and set everything that we need to at mapping
 254        time now */
 255     grab_server(FALSE);
 256
 257     /* per-app settings override stuff from client_get_all, and return the
 258        settings for other uses too. the returned settings is a shallow copy,
 259        that needs to be freed with g_free(). */
 260     settings = client_get_settings_state(self);
 261     /* the session should get the last say though */
 262     client_restore_session_state(self);
 263
 264     /* tell startup notification that this app started */
 265     launch_time = sn_app_started(self->startup_id, self->class, self->name);
 266
 267     /* do this after we have a frame.. it uses the frame to help determine the
 268        WM_STATE to apply. */
 269     client_change_state(self);
 270
 271     /* add ourselves to the focus order */
 272     focus_order_add_new(self);
 273
 274     /* do this to add ourselves to the stacking list in a non-intrusive way */
 275     client_calc_layer(self);
 276
 277     /* focus the new window? */
 278     if (ob_state() != OB_STATE_STARTING &&
 279         (!self->session || self->session->focused) &&
 280         /* this means focus=true for window is same as config_focus_new=true */
 281         ((config_focus_new || (settings && settings->focus == 1)) ||
 282          client_search_focus_tree_full(self)) &&
 283         /* this checks for focus=false for the window */
 284         (!settings || settings->focus != 0) &&
 285         focus_valid_target(self, FALSE, FALSE, TRUE, FALSE, FALSE) &&
 286         (!focus_cycle_target || !config_focus_dontstop))
 287     {
 288         activate = TRUE;
 289     }
 290
 291     /* remove the client's border */
 292     XSetWindowBorderWidth(obt_display, self->window, 0);
 293
 294     /* adjust the frame to the client's size before showing or placing
 295        the window */
 296     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 297     frame_adjust_client_area(self->frame);
 298
 299     /* where the frame was placed is where the window was originally */
 300     place = self->area;
 301     monitor = screen_physical_area_monitor(screen_find_monitor(&place));
 302
 303     /* figure out placement for the window if the window is new */
 304     if (ob_state() == OB_STATE_RUNNING) {
 305         ob_debug("Positioned: %s @ %d %d",
 306                  (!self->positioned ? "no" :
 307                   (self->positioned == PPosition ? "program specified" :
 308                    (self->positioned == USPosition ? "user specified" :
 309                     (self->positioned == (PPosition | USPosition) ?
 310                      "program + user specified" :
 311                      "BADNESS !?")))), place.x, place.y);
 312
 313         ob_debug("Sized: %s @ %d %d",
 314                  (!self->sized ? "no" :
 315                   (self->sized == PSize ? "program specified" :
 316                    (self->sized == USSize ? "user specified" :
 317                     (self->sized == (PSize | USSize) ?
 318                      "program + user specified" :
 319                      "BADNESS !?")))), place.width, place.height);
 320
 321         /* splash screens are also returned as TRUE for transient,
 322            and so will be forced on screen below */
 323         transient = place_client(self, &place.x, &place.y, settings);
 324
 325         /* make sure the window is visible. */
 326         client_find_onscreen(self, &place.x, &place.y,
 327                              place.width, place.height,
 328                              /* non-normal clients has less rules, and
 329                                 windows that are being restored from a
 330                                 session do also. we can assume you want
 331                                 it back where you saved it. Clients saying
 332                                 they placed themselves are subjected to
 333                                 harder rules, ones that are placed by
 334                                 place.c or by the user are allowed partially
 335                                 off-screen and on xinerama divides (ie,
 336                                 it is up to the placement routines to avoid
 337                                 the xinerama divides)
 338
 339                                 splash screens get "transient" set to TRUE by
 340                                 the place_client call
 341                              */
 342                              ob_state() == OB_STATE_RUNNING &&
 343                              (transient ||
 344                               (!((self->positioned & USPosition) ||
 345                                  (settings && settings->pos_given)) &&
 346                                client_normal(self) &&
 347                                !self->session &&
 348                                /* don't move oldschool fullscreen windows to
 349                                   fit inside the struts (fixes Acroread, which
 350                                   makes its fullscreen window fit the screen
 351                                   but it is not USSize'd or USPosition'd) */
 352                                !(self->decorations == 0 &&
 353                                  RECT_EQUAL(place, *monitor)))));
 354     }
 355
 356     /* if the window isn't user-sized, then make it fit inside
 357        the visible screen area on its monitor. Use basically the same rules
 358        for forcing the window on screen in the client_find_onscreen call.
 359
 360        do this after place_client, it chooses the monitor!
 361
 362        splash screens get "transient" set to TRUE by
 363        the place_client call
 364     */
 365     if (ob_state() == OB_STATE_RUNNING &&
 366         (transient ||
 367          (!(self->sized & USSize || self->positioned & USPosition) &&
 368           client_normal(self) &&
 369           !self->session &&
 370           /* don't shrink oldschool fullscreen windows to fit inside the
 371              struts (fixes Acroread, which makes its fullscreen window
 372              fit the screen but it is not USSize'd or USPosition'd) */
 373           !(self->decorations == 0 && RECT_EQUAL(place, *monitor)))))
 374     {
 375         Rect *a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &place);
 376
 377         /* get the size of the frame */
 378         place.width += self->frame->size.left + self->frame->size.right;
 379         place.height += self->frame->size.top + self->frame->size.bottom;
 380
 381         /* fit the window inside the area */
 382         place.width = MIN(place.width, a->width);
 383         place.height = MIN(place.height, a->height);
 384
 385         ob_debug("setting window size to %dx%d", place.width, place.height);
 386
 387         /* get the size of the client back */
 388         place.width -= self->frame->size.left + self->frame->size.right;
 389         place.height -= self->frame->size.top + self->frame->size.bottom;
 390
 391         g_free(a);
 392     }
 393
 394     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 395              "some restrictions may apply",
 396              self->window, place.x, place.y, place.width, place.height);
 397     if (self->session)
 398         ob_debug("  but session requested %d, %d  %d x %d instead, "
 399                  "overriding",
 400                  self->session->x, self->session->y,
 401                  self->session->w, self->session->h);
 402
 403     /* do this after the window is placed, so the premax/prefullscreen numbers
 404        won't be all wacko!!
 405
 406        this also places the window
 407     */
 408     client_apply_startup_state(self, place.x, place.y,
 409                                place.width, place.height);
 410
 411     g_free(monitor);
 412     monitor = NULL;
 413
 414     ob_debug_type(OB_DEBUG_FOCUS, "Going to try activate new window? %s",
 415                   activate ? "yes" : "no");
 416     if (activate) {
 417         gboolean raise = FALSE;
 418         gboolean relative_focused = FALSE;
 419
 420         relative_focused = (focus_client != NULL &&
 421                             client_search_focus_tree_full(self) != NULL &&
 422                             client_search_focus_group_full(self) != NULL);
 423
 424         /* This is focus stealing prevention */
 425         ob_debug_type(OB_DEBUG_FOCUS,
 426                       "Want to focus new window 0x%x at time %u "
 427                       "launched at %u (last user interaction time %u)",
 428                       self->window, map_time, launch_time,
 429                       event_last_user_time);
 430
 431         /* if it's on another desktop */
 432         if (!(self->desktop == screen_desktop ||
 433                    self->desktop == DESKTOP_ALL) &&
 434                  /* the timestamp is from before you changed desktops */
 435                  launch_time && screen_desktop_user_time &&
 436                  !event_time_after(launch_time, screen_desktop_user_time))
 437         {
 438             activate = FALSE;
 439             raise = TRUE;
 440             ob_debug_type(OB_DEBUG_FOCUS,
 441                           "Not focusing the window because its on another "
 442                           "desktop");
 443         }
 444         /* If something is focused... */
 445         else if (focus_client) {
 446             /* If the user is working in another window right now, then don't
 447                steal focus */
 448             if (event_last_user_time && launch_time &&
 449                 event_time_after(event_last_user_time, launch_time) &&
 450                 event_last_user_time != launch_time &&
 451                 event_time_after(event_last_user_time,
 452                                  map_time - OB_EVENT_USER_TIME_DELAY))
 453             {
 454                 activate = FALSE;
 455                 ob_debug_type(OB_DEBUG_FOCUS,
 456                               "Not focusing the window because the user is "
 457                               "working in another window");
 458             }
 459             /* If the new window is a transient (and its relatives aren't
 460                focused) */
 461             else if (client_has_parent(self) && !relative_focused) {
 462                 activate = FALSE;
 463                 ob_debug_type(OB_DEBUG_FOCUS,
 464                               "Not focusing the window because it is a "
 465                               "transient, and its relatives aren't focused");
 466             }
 467             /* Don't steal focus from globally active clients.
 468                I stole this idea from KWin. It seems nice.
 469              */
 470             else if (!(focus_client->can_focus ||
 471                        focus_client->focus_notify))
 472             {
 473                 activate = FALSE;
 474                 ob_debug_type(OB_DEBUG_FOCUS,
 475                               "Not focusing the window because a globally "
 476                               "active client has focus");
 477             }
 478             /* Don't move focus if it's not going to go to this window
 479                anyway */
 480             else if (client_focus_target(self) != self) {
 481                 activate = FALSE;
 482                 raise = TRUE;
 483                 ob_debug_type(OB_DEBUG_FOCUS,
 484                               "Not focusing the window because another window "
 485                               "would get the focus anyway");
 486             }
 487             /* Don't move focus if the window is not visible on the current
 488                desktop and none of its relatives are focused */
 489             else if (!(self->desktop == screen_desktop ||
 490                        self->desktop == DESKTOP_ALL) &&
 491                      !relative_focused)
 492             {
 493                 activate = FALSE;
 494                 raise = TRUE;
 495                 ob_debug_type(OB_DEBUG_FOCUS,
 496                               "Not focusing the window because it is on "
 497                               "another desktop and no relatives are focused ");
 498             }
 499         }
 500
 501         if (!activate) {
 502             ob_debug_type(OB_DEBUG_FOCUS,
 503                           "Focus stealing prevention activated for %s at "
 504                           "time %u (last user interaction time %u)",
 505                           self->title, map_time, event_last_user_time);
 506             /* if the client isn't focused, then hilite it so the user
 507                knows it is there */
 508             client_hilite(self, TRUE);
 509             /* we may want to raise it even tho we're not activating it */
 510             if (raise && !client_restore_session_stacking(self))
 511                 stacking_raise(CLIENT_AS_WINDOW(self));
 512         }
 513     }
 514     else {
 515         /* This may look rather odd. Well it's because new windows are added
 516            to the stacking order non-intrusively. If we're not going to focus
 517            the new window or hilite it, then we raise it to the top. This will
 518            take affect for things that don't get focused like splash screens.
 519            Also if you don't have focus_new enabled, then it's going to get
 520            raised to the top. Legacy begets legacy I guess?
 521         */
 522         if (!client_restore_session_stacking(self))
 523             stacking_raise(CLIENT_AS_WINDOW(self));
 524     }
 525
 526     mouse_grab_for_client(self, TRUE);
 527
 528     /* this has to happen before we try focus the window, but we want it to
 529        happen after the client's stacking has been determined or it looks bad
 530     */
 531     {
 532         gulong ignore_start;
 533         if (!config_focus_under_mouse)
 534             ignore_start = event_start_ignore_all_enters();
 535
 536         client_show(self);
 537
 538         if (!config_focus_under_mouse)
 539             event_end_ignore_all_enters(ignore_start);
 540     }
 541
 542     if (activate) {
 543         gboolean stacked = client_restore_session_stacking(self);
 544         client_present(self, FALSE, !stacked, TRUE);
 545     }
 546
 547     /* add to client list/map */
 548     client_list = g_list_append(client_list, self);
 549     window_add(&self->window, CLIENT_AS_WINDOW(self));
 550
 551     /* this has to happen after we're in the client_list */
 552     if (STRUT_EXISTS(self->strut))
 553         screen_update_areas();
 554
 555     /* update the list hints */
 556     client_set_list();
 557
 558     /* free the ObAppSettings shallow copy */
 559     g_free(settings);
 560
 561     ob_debug("Managed window 0x%lx plate 0x%x (%s)",
 562              window, self->frame->window, self->class);
 563
 564     hooks_queue(OB_HOOK_WIN_NEW, self);
 565 }
 566
 567 ObClient *client_fake_manage(Window window)
 568 {
 569     ObClient *self;
 570     ObAppSettings *settings;
 571
 572     ob_debug("Pretend-managing window: %lx", window);
 573
 574     /* do this minimal stuff to figure out the client's decorations */
 575
 576     self = g_new0(ObClient, 1);
 577     self->window = window;
 578
 579     client_get_all(self, FALSE);
 580     /* per-app settings override stuff, and return the settings for other
 581        uses too. this returns a shallow copy that needs to be freed */
 582     settings = client_get_settings_state(self);
 583
 584     client_setup_decor_and_functions(self, FALSE);
 585
 586     /* create the decoration frame for the client window and adjust its size */
 587     self->frame = frame_new(self);
 588     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 589
 590     ob_debug("gave extents left %d right %d top %d bottom %d",
 591              self->frame->size.left, self->frame->size.right,
 592              self->frame->size.top, self->frame->size.bottom);
 593
 594     /* free the ObAppSettings shallow copy */
 595     g_free(settings);
 596
 597     return self;
 598 }
 599
 600 void client_unmanage_all(void)
 601 {
 602     while (client_list)
 603         client_unmanage(client_list->data);
 604 }
 605
 606 void client_unmanage(ObClient *self)
 607 {
 608     GSList *it;
 609     gulong ignore_start;
 610
 611     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)",
 612              self->window, self->frame->window,
 613              self->class, self->title ? self->title : "");
 614
 615     g_assert(self != NULL);
 616
 617     /* we dont want events no more. do this before hiding the frame so we
 618        don't generate more events */
 619     XSelectInput(obt_display, self->window, NoEventMask);
 620
 621     /* ignore enter events from the unmap so it doesnt mess with the focus */
 622     if (!config_focus_under_mouse)
 623         ignore_start = event_start_ignore_all_enters();
 624
 625     frame_hide(self->frame);
 626     /* flush to send the hide to the server quickly */
 627     XFlush(obt_display);
 628
 629     if (!config_focus_under_mouse)
 630         event_end_ignore_all_enters(ignore_start);
 631
 632     mouse_grab_for_client(self, FALSE);
 633
 634     /* remove the window from our save set, unless we are managing an internal
 635        ObPrompt window */
 636     if (!self->prompt)
 637         XChangeSaveSet(obt_display, self->window, SetModeDelete);
 638
 639     /* this can't be queued to run later */
 640     hooks_run(OB_HOOK_WIN_CLOSE, self);
 641
 642     /* update the focus lists */
 643     focus_order_remove(self);
 644     if (client_focused(self)) {
 645         /* don't leave an invalid focus_client */
 646         focus_client = NULL;
 647     }
 648
 649     /* if we're prompting to kill the client, close that */
 650     prompt_unref(self->kill_prompt);
 651     self->kill_prompt = NULL;
 652
 653     client_list = g_list_remove(client_list, self);
 654     stacking_remove(self);
 655     window_remove(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(obt_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         OBT_PROP_ERASE(self->window, NET_WM_DESKTOP);
 722         OBT_PROP_ERASE(self->window, NET_WM_STATE);
 723         OBT_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(obt_display, self->window);
 729     }
 730
 731     /* these should not be left on the window ever.  other window managers
 732        don't necessarily use them and it will mess them up (like compiz) */
 733     OBT_PROP_ERASE(self->window, NET_WM_VISIBLE_NAME);
 734     OBT_PROP_ERASE(self->window, NET_WM_VISIBLE_ICON_NAME);
 735
 736     /* update the list hints */
 737     client_set_list();
 738
 739     ob_debug("Unmanaged window 0x%lx", self->window);
 740
 741     /* free all data allocated in the client struct */
 742     RrImageUnref(self->icon_set);
 743     g_slist_free(self->transients);
 744     g_free(self->startup_id);
 745     g_free(self->wm_command);
 746     g_free(self->title);
 747     g_free(self->icon_title);
 748     g_free(self->original_title);
 749     g_free(self->name);
 750     g_free(self->class);
 751     g_free(self->role);
 752     g_free(self->client_machine);
 753     g_free(self->sm_client_id);
 754     g_free(self);
 755 }
 756
 757 void client_fake_unmanage(ObClient *self)
 758 {
 759     /* this is all that got allocated to get the decorations */
 760
 761     frame_free(self->frame);
 762     g_free(self);
 763 }
 764
 765 /*! Returns a new structure containing the per-app settings for this client.
 766   The returned structure needs to be freed with g_free. */
 767 static ObAppSettings *client_get_settings_state(ObClient *self)
 768 {
 769     ObAppSettings *settings;
 770     GSList *it;
 771
 772     settings = config_create_app_settings();
 773
 774     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 775         ObAppSettings *app = it->data;
 776         gboolean match = TRUE;
 777
 778         g_assert(app->name != NULL || app->class != NULL);
 779
 780         /* we know that either name or class is not NULL so it will have to
 781            match to use the rule */
 782         if (app->name &&
 783             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 784             match = FALSE;
 785         else if (app->class &&
 786                  !g_pattern_match(app->class,
 787                                   strlen(self->class), self->class, NULL))
 788             match = FALSE;
 789         else if (app->role &&
 790                  !g_pattern_match(app->role,
 791                                   strlen(self->role), self->role, NULL))
 792             match = FALSE;
 793         else if ((signed)app->type >= 0 && app->type != self->type)
 794             match = FALSE;
 795
 796         if (match) {
 797             ob_debug("Window matching: %s", app->name);
 798
 799             /* copy the settings to our struct, overriding the existing
 800                settings if they are not defaults */
 801             config_app_settings_copy_non_defaults(app, settings);
 802         }
 803     }
 804
 805     if (settings->shade != -1)
 806         self->shaded = !!settings->shade;
 807     if (settings->decor != -1)
 808         self->undecorated = !settings->decor;
 809     if (settings->iconic != -1)
 810         self->iconic = !!settings->iconic;
 811     if (settings->skip_pager != -1)
 812         self->skip_pager = !!settings->skip_pager;
 813     if (settings->skip_taskbar != -1)
 814         self->skip_taskbar = !!settings->skip_taskbar;
 815
 816     if (settings->max_vert != -1)
 817         self->max_vert = !!settings->max_vert;
 818     if (settings->max_horz != -1)
 819         self->max_horz = !!settings->max_horz;
 820
 821     if (settings->fullscreen != -1)
 822         self->fullscreen = !!settings->fullscreen;
 823
 824     if (settings->desktop) {
 825         if (settings->desktop == DESKTOP_ALL)
 826             self->desktop = settings->desktop;
 827         else if (settings->desktop > 0 &&
 828                  settings->desktop <= screen_num_desktops)
 829             self->desktop = settings->desktop - 1;
 830     }
 831
 832     if (settings->layer == -1) {
 833         self->below = TRUE;
 834         self->above = FALSE;
 835     }
 836     else if (settings->layer == 0) {
 837         self->below = FALSE;
 838         self->above = FALSE;
 839     }
 840     else if (settings->layer == 1) {
 841         self->below = FALSE;
 842         self->above = TRUE;
 843     }
 844     return settings;
 845 }
 846
 847 static void client_restore_session_state(ObClient *self)
 848 {
 849     GList *it;
 850
 851     ob_debug_type(OB_DEBUG_SM,
 852                   "Restore session for client %s", self->title);
 853
 854     if (!(it = session_state_find(self))) {
 855         ob_debug_type(OB_DEBUG_SM,
 856                       "Session data not found for client %s", self->title);
 857         return;
 858     }
 859
 860     self->session = it->data;
 861
 862     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s",
 863                   self->title);
 864
 865     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 866     self->positioned = USPosition;
 867     self->sized = USSize;
 868     if (self->session->w > 0)
 869         self->area.width = self->session->w;
 870     if (self->session->h > 0)
 871         self->area.height = self->session->h;
 872     XResizeWindow(obt_display, self->window,
 873                   self->area.width, self->area.height);
 874
 875     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 876                      self->session->desktop :
 877                      MIN(screen_num_desktops - 1, self->session->desktop));
 878     OBT_PROP_SET32(self->window, NET_WM_DESKTOP, CARDINAL, self->desktop);
 879
 880     self->shaded = self->session->shaded;
 881     self->iconic = self->session->iconic;
 882     self->skip_pager = self->session->skip_pager;
 883     self->skip_taskbar = self->session->skip_taskbar;
 884     self->fullscreen = self->session->fullscreen;
 885     self->above = self->session->above;
 886     self->below = self->session->below;
 887     self->max_horz = self->session->max_horz;
 888     self->max_vert = self->session->max_vert;
 889     self->undecorated = self->session->undecorated;
 890 }
 891
 892 static gboolean client_restore_session_stacking(ObClient *self)
 893 {
 894     GList *it, *mypos;
 895
 896     if (!self->session) return FALSE;
 897
 898     mypos = g_list_find(session_saved_state, self->session);
 899     if (!mypos) return FALSE;
 900
 901     /* start above me and look for the first client */
 902     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 903         GList *cit;
 904
 905         for (cit = client_list; cit; cit = g_list_next(cit)) {
 906             ObClient *c = cit->data;
 907             /* found a client that was in the session, so go below it */
 908             if (c->session == it->data) {
 909                 stacking_below(CLIENT_AS_WINDOW(self),
 910                                CLIENT_AS_WINDOW(cit->data));
 911                 return TRUE;
 912             }
 913         }
 914     }
 915     return FALSE;
 916 }
 917
 918 void client_move_onscreen(ObClient *self, gboolean rude)
 919 {
 920     gint x = self->area.x;
 921     gint y = self->area.y;
 922     if (client_find_onscreen(self, &x, &y,
 923                              self->area.width,
 924                              self->area.height, rude)) {
 925         client_move(self, x, y);
 926     }
 927 }
 928
 929 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 930                               gboolean rude)
 931 {
 932     gint ox = *x, oy = *y;
 933     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 934     gint fw, fh;
 935     Rect desired;
 936     guint i;
 937     gboolean found_mon;
 938
 939     RECT_SET(desired, *x, *y, w, h);
 940     frame_rect_to_frame(self->frame, &desired);
 941
 942     /* get where the frame would be */
 943     frame_client_gravity(self->frame, x, y);
 944
 945     /* get the requested size of the window with decorations */
 946     fw = self->frame->size.left + w + self->frame->size.right;
 947     fh = self->frame->size.top + h + self->frame->size.bottom;
 948
 949     /* If rudeness wasn't requested, then still be rude in a given direction
 950        if the client is not moving, only resizing in that direction */
 951     if (!rude) {
 952         Point oldtl, oldtr, oldbl, oldbr;
 953         Point newtl, newtr, newbl, newbr;
 954         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 955
 956         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 957         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 958                   self->frame->area.y + self->frame->area.height - 1);
 959         POINT_SET(oldtr, oldbr.x, oldtl.y);
 960         POINT_SET(oldbl, oldtl.x, oldbr.y);
 961
 962         POINT_SET(newtl, *x, *y);
 963         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 964         POINT_SET(newtr, newbr.x, newtl.y);
 965         POINT_SET(newbl, newtl.x, newbr.y);
 966
 967         /* is it moving or just resizing from some corner? */
 968         stationary_l = oldtl.x == newtl.x;
 969         stationary_r = oldtr.x == newtr.x;
 970         stationary_t = oldtl.y == newtl.y;
 971         stationary_b = oldbl.y == newbl.y;
 972
 973         /* if left edge is growing and didnt move right edge */
 974         if (stationary_r && newtl.x < oldtl.x)
 975             rudel = TRUE;
 976         /* if right edge is growing and didnt move left edge */
 977         if (stationary_l && newtr.x > oldtr.x)
 978             ruder = TRUE;
 979         /* if top edge is growing and didnt move bottom edge */
 980         if (stationary_b && newtl.y < oldtl.y)
 981             rudet = TRUE;
 982         /* if bottom edge is growing and didnt move top edge */
 983         if (stationary_t && newbl.y > oldbl.y)
 984             rudeb = TRUE;
 985     }
 986
 987     /* we iterate through every monitor that the window is at least partially
 988        on, to make sure it is obeying the rules on them all
 989
 990        if the window does not appear on any monitors, then use the first one
 991     */
 992     found_mon = FALSE;
 993     for (i = 0; i < screen_num_monitors; ++i) {
 994         Rect *a;
 995
 996         if (!screen_physical_area_monitor_contains(i, &desired)) {
 997             if (i < screen_num_monitors - 1 || found_mon)
 998                 continue;
 999
1000             /* the window is not inside any monitor! so just use the first
1001                one */
1002             a = screen_area(self->desktop, 0, NULL);
1003         } else {
1004             found_mon = TRUE;
1005             a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &desired);
1006         }
1007
1008         /* This makes sure windows aren't entirely outside of the screen so you
1009            can't see them at all.
1010            It makes sure 10% of the window is on the screen at least. And don't
1011            let it move itself off the top of the screen, which would hide the
1012            titlebar on you. (The user can still do this if they want too, it's
1013            only limiting the application.
1014         */
1015         if (client_normal(self)) {
1016             if (!self->strut.right && *x + fw/10 >= a->x + a->width - 1)
1017                 *x = a->x + a->width - fw/10;
1018             if (!self->strut.bottom && *y + fh/10 >= a->y + a->height - 1)
1019                 *y = a->y + a->height - fh/10;
1020             if (!self->strut.left && *x + fw*9/10 - 1 < a->x)
1021                 *x = a->x - fw*9/10;
1022             if (!self->strut.top && *y + fh*9/10 - 1 < a->y)
1023                 *y = a->y - fh*9/10;
1024         }
1025
1026         /* This here doesn't let windows even a pixel outside the
1027            struts/screen. When called from client_manage, programs placing
1028            themselves are forced completely onscreen, while things like
1029            xterm -geometry resolution-width/2 will work fine. Trying to
1030            place it completely offscreen will be handled in the above code.
1031            Sorry for this confused comment, i am tired. */
1032         if (rudel && !self->strut.left && *x < a->x) *x = a->x;
1033         if (ruder && !self->strut.right && *x + fw > a->x + a->width)
1034             *x = a->x + MAX(0, a->width - fw);
1035
1036         if (rudet && !self->strut.top && *y < a->y) *y = a->y;
1037         if (rudeb && !self->strut.bottom && *y + fh > a->y + a->height)
1038             *y = a->y + MAX(0, a->height - fh);
1039
1040         g_free(a);
1041     }
1042
1043     /* get where the client should be */
1044     frame_frame_gravity(self->frame, x, y);
1045
1046     return ox != *x || oy != *y;
1047 }
1048
1049 static void client_get_all(ObClient *self, gboolean real)
1050 {
1051     /* this is needed for the frame to set itself up */
1052     client_get_area(self);
1053
1054     /* these things can change the decor and functions of the window */
1055
1056     client_get_mwm_hints(self);
1057     /* this can change the mwmhints for special cases */
1058     client_get_type_and_transientness(self);
1059     client_get_state(self);
1060     client_update_normal_hints(self);
1061
1062     /* get the session related properties, these can change decorations
1063        from per-app settings */
1064     client_get_session_ids(self);
1065
1066     /* now we got everything that can affect the decorations */
1067     if (!real)
1068         return;
1069
1070     /* get this early so we have it for debugging */
1071     client_update_title(self);
1072
1073     client_update_protocols(self);
1074
1075     client_update_wmhints(self);
1076     /* this may have already been called from client_update_wmhints */
1077     if (!self->parents && !self->transient_for_group)
1078         client_update_transient_for(self);
1079
1080     client_get_startup_id(self);
1081     client_get_desktop(self);/* uses transient data/group/startup id if a
1082                                 desktop is not specified */
1083     client_get_shaped(self);
1084
1085     {
1086         /* a couple type-based defaults for new windows */
1087
1088         /* this makes sure that these windows appear on all desktops */
1089         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1090             self->desktop = DESKTOP_ALL;
1091     }
1092
1093 #ifdef SYNC
1094     client_update_sync_request_counter(self);
1095 #endif
1096
1097     client_get_colormap(self);
1098     client_update_strut(self);
1099     client_update_icons(self);
1100     client_update_icon_geometry(self);
1101 }
1102
1103 static void client_get_startup_id(ObClient *self)
1104 {
1105     if (!(OBT_PROP_GETS(self->window, NET_STARTUP_ID, utf8,
1106                         &self->startup_id)))
1107         if (self->group)
1108             OBT_PROP_GETS(self->group->leader,
1109                           NET_STARTUP_ID, utf8, &self->startup_id);
1110 }
1111
1112 static void client_get_area(ObClient *self)
1113 {
1114     XWindowAttributes wattrib;
1115     Status ret;
1116
1117     ret = XGetWindowAttributes(obt_display, self->window, &wattrib);
1118     g_assert(ret != BadWindow);
1119
1120     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1121     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1122     self->border_width = wattrib.border_width;
1123
1124     ob_debug("client area: %d %d  %d %d  bw %d", wattrib.x, wattrib.y,
1125              wattrib.width, wattrib.height, wattrib.border_width);
1126 }
1127
1128 static void client_get_desktop(ObClient *self)
1129 {
1130     guint32 d = screen_num_desktops; /* an always-invalid value */
1131
1132     if (OBT_PROP_GET32(self->window, NET_WM_DESKTOP, CARDINAL, &d)) {
1133         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1134             self->desktop = screen_num_desktops - 1;
1135         else
1136             self->desktop = d;
1137         ob_debug("client requested desktop 0x%x", self->desktop);
1138     } else {
1139         GSList *it;
1140         gboolean first = TRUE;
1141         guint all = screen_num_desktops; /* not a valid value */
1142
1143         /* if they are all on one desktop, then open it on the
1144            same desktop */
1145         for (it = self->parents; it; it = g_slist_next(it)) {
1146             ObClient *c = it->data;
1147
1148             if (c->desktop == DESKTOP_ALL) continue;
1149
1150             if (first) {
1151                 all = c->desktop;
1152                 first = FALSE;
1153             }
1154             else if (all != c->desktop)
1155                 all = screen_num_desktops; /* make it invalid */
1156         }
1157         if (all != screen_num_desktops) {
1158             self->desktop = all;
1159
1160             ob_debug("client desktop set from parents: 0x%x",
1161                      self->desktop);
1162         }
1163         /* try get from the startup-notification protocol */
1164         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1165             if (self->desktop >= screen_num_desktops &&
1166                 self->desktop != DESKTOP_ALL)
1167                 self->desktop = screen_num_desktops - 1;
1168             ob_debug("client desktop set from startup-notification: 0x%x",
1169                      self->desktop);
1170         }
1171         /* defaults to the current desktop */
1172         else {
1173             self->desktop = screen_desktop;
1174             ob_debug("client desktop set to the current desktop: %d",
1175                      self->desktop);
1176         }
1177     }
1178 }
1179
1180 static void client_get_state(ObClient *self)
1181 {
1182     guint32 *state;
1183     guint num;
1184
1185     if (OBT_PROP_GETA32(self->window, NET_WM_STATE, ATOM, &state, &num)) {
1186         gulong i;
1187         for (i = 0; i < num; ++i) {
1188             if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_MODAL))
1189                 self->modal = TRUE;
1190             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_SHADED))
1191                 self->shaded = TRUE;
1192             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_HIDDEN))
1193                 self->iconic = TRUE;
1194             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR))
1195                 self->skip_taskbar = TRUE;
1196             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER))
1197                 self->skip_pager = TRUE;
1198             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN))
1199                 self->fullscreen = TRUE;
1200             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT))
1201                 self->max_vert = TRUE;
1202             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ))
1203                 self->max_horz = TRUE;
1204             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_ABOVE))
1205                 self->above = TRUE;
1206             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_BELOW))
1207                 self->below = TRUE;
1208             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION))
1209                 self->demands_attention = TRUE;
1210             else if (state[i] == OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED))
1211                 self->undecorated = TRUE;
1212             else if (state[i] == OBT_PROP_ATOM(OB_WM_STATE_LOCKED))
1213                 self->locked = TRUE;
1214         }
1215
1216         g_free(state);
1217     }
1218 }
1219
1220 static void client_get_shaped(ObClient *self)
1221 {
1222     self->shaped = FALSE;
1223 #ifdef SHAPE
1224     if (obt_display_extension_shape) {
1225         gint foo;
1226         guint ufoo;
1227         gint s;
1228
1229         XShapeSelectInput(obt_display, self->window, ShapeNotifyMask);
1230
1231         XShapeQueryExtents(obt_display, self->window, &s, &foo,
1232                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1233                            &ufoo);
1234         self->shaped = !!s;
1235     }
1236 #endif
1237 }
1238
1239 void client_update_transient_for(ObClient *self)
1240 {
1241     Window t = None;
1242     ObClient *target = NULL;
1243     gboolean trangroup = FALSE;
1244
1245     if (XGetTransientForHint(obt_display, self->window, &t)) {
1246         if (t != self->window) { /* can't be transient to itself! */
1247             ObWindow *tw = window_find(t);
1248             /* if this happens then we need to check for it */
1249             g_assert(tw != CLIENT_AS_WINDOW(self));
1250             if (tw && WINDOW_IS_CLIENT(tw)) {
1251                 /* watch out for windows with a parent that is something
1252                    different, like a dockapp for example */
1253                 target = WINDOW_AS_CLIENT(tw);
1254             }
1255         }
1256
1257         /* Setting the transient_for to Root is actually illegal, however
1258            applications from time have done this to specify transient for
1259            their group */
1260         if (!target && self->group && t == obt_root(ob_screen))
1261             trangroup = TRUE;
1262     } else if (self->group && self->transient)
1263         trangroup = TRUE;
1264
1265     client_update_transient_tree(self, self->group, self->group,
1266                                  self->transient_for_group, trangroup,
1267                                  client_direct_parent(self), target);
1268     self->transient_for_group = trangroup;
1269
1270 }
1271
1272 static void client_update_transient_tree(ObClient *self,
1273                                          ObGroup *oldgroup, ObGroup *newgroup,
1274                                          gboolean oldgtran, gboolean newgtran,
1275                                          ObClient* oldparent,
1276                                          ObClient *newparent)
1277 {
1278     GSList *it, *next;
1279     ObClient *c;
1280
1281     g_assert(!oldgtran || oldgroup);
1282     g_assert(!newgtran || newgroup);
1283     g_assert((!oldgtran && !oldparent) ||
1284              (oldgtran && !oldparent) ||
1285              (!oldgtran && oldparent));
1286     g_assert((!newgtran && !newparent) ||
1287              (newgtran && !newparent) ||
1288              (!newgtran && newparent));
1289
1290     /* * *
1291       Group transient windows are not allowed to have other group
1292       transient windows as their children.
1293       * * */
1294
1295     /* No change has occured */
1296     if (oldgroup == newgroup &&
1297         oldgtran == newgtran &&
1298         oldparent == newparent) return;
1299
1300     /** Remove the client from the transient tree **/
1301
1302     for (it = self->transients; it; it = next) {
1303         next = g_slist_next(it);
1304         c = it->data;
1305         self->transients = g_slist_delete_link(self->transients, it);
1306         c->parents = g_slist_remove(c->parents, self);
1307     }
1308     for (it = self->parents; it; it = next) {
1309         next = g_slist_next(it);
1310         c = it->data;
1311         self->parents = g_slist_delete_link(self->parents, it);
1312         c->transients = g_slist_remove(c->transients, self);
1313     }
1314
1315     /** Re-add the client to the transient tree **/
1316
1317     /* If we're transient for a group then we need to add ourselves to all our
1318        parents */
1319     if (newgtran) {
1320         for (it = newgroup->members; it; it = g_slist_next(it)) {
1321             c = it->data;
1322             if (c != self &&
1323                 !client_search_top_direct_parent(c)->transient_for_group &&
1324                 client_normal(c))
1325             {
1326                 c->transients = g_slist_prepend(c->transients, self);
1327                 self->parents = g_slist_prepend(self->parents, c);
1328             }
1329         }
1330     }
1331
1332     /* If we are now transient for a single window we need to add ourselves to
1333        its children
1334
1335        WARNING: Cyclical transient-ness is possible if two windows are
1336        transient for eachother.
1337     */
1338     else if (newparent &&
1339              /* don't make ourself its child if it is already our child */
1340              !client_is_direct_child(self, newparent) &&
1341              client_normal(newparent))
1342     {
1343         newparent->transients = g_slist_prepend(newparent->transients, self);
1344         self->parents = g_slist_prepend(self->parents, newparent);
1345     }
1346
1347     /* Add any group transient windows to our children. But if we're transient
1348        for the group, then other group transients are not our children.
1349
1350        WARNING: Cyclical transient-ness is possible. For e.g. if:
1351        A is transient for the group
1352        B is transient for A
1353        C is transient for B
1354        A can't be transient for C or we have a cycle
1355     */
1356     if (!newgtran && newgroup &&
1357         (!newparent ||
1358          !client_search_top_direct_parent(newparent)->transient_for_group) &&
1359         client_normal(self))
1360     {
1361         for (it = newgroup->members; it; it = g_slist_next(it)) {
1362             c = it->data;
1363             if (c != self && c->transient_for_group &&
1364                 /* Don't make it our child if it is already our parent */
1365                 !client_is_direct_child(c, self))
1366             {
1367                 self->transients = g_slist_prepend(self->transients, c);
1368                 c->parents = g_slist_prepend(c->parents, self);
1369             }
1370         }
1371     }
1372
1373     /** If we change our group transient-ness, our children change their
1374         effective group transient-ness, which affects how they relate to other
1375         group windows **/
1376
1377     for (it = self->transients; it; it = g_slist_next(it)) {
1378         c = it->data;
1379         if (!c->transient_for_group)
1380             client_update_transient_tree(c, c->group, c->group,
1381                                          c->transient_for_group,
1382                                          c->transient_for_group,
1383                                          client_direct_parent(c),
1384                                          client_direct_parent(c));
1385     }
1386 }
1387
1388 static void client_get_mwm_hints(ObClient *self)
1389 {
1390     guint num;
1391     guint32 *hints;
1392
1393     self->mwmhints.flags = 0; /* default to none */
1394
1395     if (OBT_PROP_GETA32(self->window, MOTIF_WM_HINTS, MOTIF_WM_HINTS,
1396                         &hints, &num)) {
1397         if (num >= OB_MWM_ELEMENTS) {
1398             self->mwmhints.flags = hints[0];
1399             self->mwmhints.functions = hints[1];
1400             self->mwmhints.decorations = hints[2];
1401         }
1402         g_free(hints);
1403     }
1404 }
1405
1406 void client_get_type_and_transientness(ObClient *self)
1407 {
1408     guint num, i;
1409     guint32 *val;
1410     Window t;
1411
1412     self->type = -1;
1413     self->transient = FALSE;
1414
1415     if (OBT_PROP_GETA32(self->window, NET_WM_WINDOW_TYPE, ATOM, &val, &num)) {
1416         /* use the first value that we know about in the array */
1417         for (i = 0; i < num; ++i) {
1418             if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DESKTOP))
1419                 self->type = OB_CLIENT_TYPE_DESKTOP;
1420             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DOCK))
1421                 self->type = OB_CLIENT_TYPE_DOCK;
1422             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_TOOLBAR))
1423                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1424             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_MENU))
1425                 self->type = OB_CLIENT_TYPE_MENU;
1426             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_UTILITY))
1427                 self->type = OB_CLIENT_TYPE_UTILITY;
1428             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_SPLASH))
1429                 self->type = OB_CLIENT_TYPE_SPLASH;
1430             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG))
1431                 self->type = OB_CLIENT_TYPE_DIALOG;
1432             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_NORMAL))
1433                 self->type = OB_CLIENT_TYPE_NORMAL;
1434             else if (val[i] == OBT_PROP_ATOM(KDE_NET_WM_WINDOW_TYPE_OVERRIDE))
1435             {
1436                 /* prevent this window from getting any decor or
1437                    functionality */
1438                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1439                                          OB_MWM_FLAG_DECORATIONS);
1440                 self->mwmhints.decorations = 0;
1441                 self->mwmhints.functions = 0;
1442             }
1443             if (self->type != (ObClientType) -1)
1444                 break; /* grab the first legit type */
1445         }
1446         g_free(val);
1447     }
1448
1449     if (XGetTransientForHint(obt_display, self->window, &t))
1450         self->transient = TRUE;
1451
1452     if (self->type == (ObClientType) -1) {
1453         /*the window type hint was not set, which means we either classify
1454           ourself as a normal window or a dialog, depending on if we are a
1455           transient. */
1456         if (self->transient)
1457             self->type = OB_CLIENT_TYPE_DIALOG;
1458         else
1459             self->type = OB_CLIENT_TYPE_NORMAL;
1460     }
1461
1462     /* then, based on our type, we can update our transientness.. */
1463     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1464         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1465         self->type == OB_CLIENT_TYPE_MENU ||
1466         self->type == OB_CLIENT_TYPE_UTILITY)
1467     {
1468         self->transient = TRUE;
1469     }
1470 }
1471
1472 void client_update_protocols(ObClient *self)
1473 {
1474     guint32 *proto;
1475     guint num_ret, i;
1476
1477     self->focus_notify = FALSE;
1478     self->delete_window = FALSE;
1479
1480     if (OBT_PROP_GETA32(self->window, WM_PROTOCOLS, ATOM, &proto, &num_ret)) {
1481         for (i = 0; i < num_ret; ++i) {
1482             if (proto[i] == OBT_PROP_ATOM(WM_DELETE_WINDOW))
1483                 /* this means we can request the window to close */
1484                 self->delete_window = TRUE;
1485             else if (proto[i] == OBT_PROP_ATOM(WM_TAKE_FOCUS))
1486                 /* if this protocol is requested, then the window will be
1487                    notified whenever we want it to receive focus */
1488                 self->focus_notify = TRUE;
1489             else if (proto[i] == OBT_PROP_ATOM(NET_WM_PING))
1490                 /* if this protocol is requested, then the window will allow
1491                    pings to determine if it is still alive */
1492                 self->ping = TRUE;
1493 #ifdef SYNC
1494             else if (proto[i] == OBT_PROP_ATOM(NET_WM_SYNC_REQUEST))
1495                 /* if this protocol is requested, then resizing the
1496                    window will be synchronized between the frame and the
1497                    client */
1498                 self->sync_request = TRUE;
1499 #endif
1500         }
1501         g_free(proto);
1502     }
1503 }
1504
1505 #ifdef SYNC
1506 void client_update_sync_request_counter(ObClient *self)
1507 {
1508     guint32 i;
1509
1510     if (OBT_PROP_GET32(self->window, NET_WM_SYNC_REQUEST_COUNTER, CARDINAL,&i))
1511     {
1512         self->sync_counter = i;
1513     } else
1514         self->sync_counter = None;
1515 }
1516 #endif
1517
1518 static void client_get_colormap(ObClient *self)
1519 {
1520     XWindowAttributes wa;
1521
1522     if (XGetWindowAttributes(obt_display, self->window, &wa))
1523         client_update_colormap(self, wa.colormap);
1524 }
1525
1526 void client_update_colormap(ObClient *self, Colormap colormap)
1527 {
1528     if (colormap == self->colormap) return;
1529
1530     ob_debug("Setting client %s colormap: 0x%x", self->title, colormap);
1531
1532     if (client_focused(self)) {
1533         screen_install_colormap(self, FALSE); /* uninstall old one */
1534         self->colormap = colormap;
1535         screen_install_colormap(self, TRUE); /* install new one */
1536     } else
1537         self->colormap = colormap;
1538 }
1539
1540 void client_update_normal_hints(ObClient *self)
1541 {
1542     XSizeHints size;
1543     glong ret;
1544
1545     /* defaults */
1546     self->min_ratio = 0.0f;
1547     self->max_ratio = 0.0f;
1548     SIZE_SET(self->size_inc, 1, 1);
1549     SIZE_SET(self->base_size, -1, -1);
1550     SIZE_SET(self->min_size, 0, 0);
1551     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1552
1553     /* get the hints from the window */
1554     if (XGetWMNormalHints(obt_display, self->window, &size, &ret)) {
1555         /* normal windows can't request placement! har har
1556         if (!client_normal(self))
1557         */
1558         self->positioned = (size.flags & (PPosition|USPosition));
1559         self->sized = (size.flags & (PSize|USSize));
1560
1561         if (size.flags & PWinGravity)
1562             self->gravity = size.win_gravity;
1563
1564         if (size.flags & PAspect) {
1565             if (size.min_aspect.y)
1566                 self->min_ratio =
1567                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1568             if (size.max_aspect.y)
1569                 self->max_ratio =
1570                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1571         }
1572
1573         if (size.flags & PMinSize)
1574             SIZE_SET(self->min_size, size.min_width, size.min_height);
1575
1576         if (size.flags & PMaxSize)
1577             SIZE_SET(self->max_size, size.max_width, size.max_height);
1578
1579         if (size.flags & PBaseSize)
1580             SIZE_SET(self->base_size, size.base_width, size.base_height);
1581
1582         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1583             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1584
1585         ob_debug("Normal hints: min size (%d %d) max size (%d %d)",
1586                  self->min_size.width, self->min_size.height,
1587                  self->max_size.width, self->max_size.height);
1588         ob_debug("size inc (%d %d) base size (%d %d)",
1589                  self->size_inc.width, self->size_inc.height,
1590                  self->base_size.width, self->base_size.height);
1591     }
1592     else
1593         ob_debug("Normal hints: not set");
1594 }
1595
1596 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1597 {
1598     /* start with everything (cept fullscreen) */
1599     self->decorations =
1600         (OB_FRAME_DECOR_TITLEBAR |
1601          OB_FRAME_DECOR_HANDLE |
1602          OB_FRAME_DECOR_GRIPS |
1603          OB_FRAME_DECOR_BORDER |
1604          OB_FRAME_DECOR_ICON |
1605          OB_FRAME_DECOR_ALLDESKTOPS |
1606          OB_FRAME_DECOR_ICONIFY |
1607          OB_FRAME_DECOR_MAXIMIZE |
1608          OB_FRAME_DECOR_SHADE |
1609          OB_FRAME_DECOR_CLOSE);
1610     self->functions =
1611         (OB_CLIENT_FUNC_RESIZE |
1612          OB_CLIENT_FUNC_MOVE |
1613          OB_CLIENT_FUNC_ICONIFY |
1614          OB_CLIENT_FUNC_MAXIMIZE |
1615          OB_CLIENT_FUNC_SHADE |
1616          OB_CLIENT_FUNC_CLOSE |
1617          OB_CLIENT_FUNC_BELOW |
1618          OB_CLIENT_FUNC_ABOVE |
1619          OB_CLIENT_FUNC_UNDECORATE);
1620
1621     if (!(self->min_size.width < self->max_size.width ||
1622           self->min_size.height < self->max_size.height))
1623         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1624
1625     switch (self->type) {
1626     case OB_CLIENT_TYPE_NORMAL:
1627         /* normal windows retain all of the possible decorations and
1628            functionality, and can be fullscreen */
1629         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1630         break;
1631
1632     case OB_CLIENT_TYPE_DIALOG:
1633         /* sometimes apps make dialog windows fullscreen for some reason (for
1634            e.g. kpdf does this..) */
1635         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1636         break;
1637
1638     case OB_CLIENT_TYPE_UTILITY:
1639         /* these windows don't have anything added or removed by default */
1640         break;
1641
1642     case OB_CLIENT_TYPE_MENU:
1643     case OB_CLIENT_TYPE_TOOLBAR:
1644         /* these windows can't iconify or maximize */
1645         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1646                                OB_FRAME_DECOR_MAXIMIZE);
1647         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1648                              OB_CLIENT_FUNC_MAXIMIZE);
1649         break;
1650
1651     case OB_CLIENT_TYPE_SPLASH:
1652         /* these don't get get any decorations, and the only thing you can
1653            do with them is move them */
1654         self->decorations = 0;
1655         self->functions = OB_CLIENT_FUNC_MOVE;
1656         break;
1657
1658     case OB_CLIENT_TYPE_DESKTOP:
1659         /* these windows are not manipulated by the window manager */
1660         self->decorations = 0;
1661         self->functions = 0;
1662         break;
1663
1664     case OB_CLIENT_TYPE_DOCK:
1665         /* these windows are not manipulated by the window manager, but they
1666            can set below layer which has a special meaning */
1667         self->decorations = 0;
1668         self->functions = OB_CLIENT_FUNC_BELOW;
1669         break;
1670     }
1671
1672     /* Mwm Hints are applied subtractively to what has already been chosen for
1673        decor and functionality */
1674     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1675         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1676             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1677                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1678             {
1679                 /* if the mwm hints request no handle or title, then all
1680                    decorations are disabled, but keep the border if that's
1681                    specified */
1682                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1683                     self->decorations = OB_FRAME_DECOR_BORDER;
1684                 else
1685                     self->decorations = 0;
1686             }
1687         }
1688     }
1689
1690     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1691         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1692             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1693                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1694             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1695                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1696             /* dont let mwm hints kill any buttons
1697                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1698                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1699                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1700                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1701             */
1702             /* dont let mwm hints kill the close button
1703                if (! (self->mwmhints.functions & MwmFunc_Close))
1704                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1705         }
1706     }
1707
1708     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1709         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1710     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1711         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1712     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1713         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1714
1715     /* can't maximize without moving/resizing */
1716     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1717           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1718           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1719         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1720         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1721     }
1722
1723     if (self->max_horz && self->max_vert) {
1724         /* you can't resize fully maximized windows */
1725         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1726         /* kill the handle on fully maxed windows */
1727         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1728     }
1729
1730     /* If there are no decorations to remove, don't allow the user to try
1731        toggle the state */
1732     if (self->decorations == 0)
1733         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1734
1735     /* finally, the user can have requested no decorations, which overrides
1736        everything (but doesnt give it a border if it doesnt have one) */
1737     if (self->undecorated)
1738         self->decorations = 0;
1739
1740     /* if we don't have a titlebar, then we cannot shade! */
1741     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1742         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1743
1744     /* now we need to check against rules for the client's current state */
1745     if (self->fullscreen) {
1746         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1747                             OB_CLIENT_FUNC_FULLSCREEN |
1748                             OB_CLIENT_FUNC_ICONIFY);
1749         self->decorations = 0;
1750     }
1751
1752     client_change_allowed_actions(self);
1753
1754     if (reconfig)
1755         /* force reconfigure to make sure decorations are updated */
1756         client_reconfigure(self, TRUE);
1757 }
1758
1759 static void client_change_allowed_actions(ObClient *self)
1760 {
1761     gulong actions[12];
1762     gint num = 0;
1763
1764     /* desktop windows are kept on all desktops */
1765     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1766         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_CHANGE_DESKTOP);
1767
1768     if (self->functions & OB_CLIENT_FUNC_SHADE)
1769         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_SHADE);
1770     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1771         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_CLOSE);
1772     if (self->functions & OB_CLIENT_FUNC_MOVE)
1773         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MOVE);
1774     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1775         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MINIMIZE);
1776     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1777         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_RESIZE);
1778     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1779         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_FULLSCREEN);
1780     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1781         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_HORZ);
1782         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_VERT);
1783     }
1784     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1785         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_ABOVE);
1786     if (self->functions & OB_CLIENT_FUNC_BELOW)
1787         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_BELOW);
1788     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1789         actions[num++] = OBT_PROP_ATOM(OB_WM_ACTION_UNDECORATE);
1790
1791     OBT_PROP_SETA32(self->window, NET_WM_ALLOWED_ACTIONS, ATOM, actions, num);
1792
1793     /* make sure the window isn't breaking any rules now
1794
1795        don't check ICONIFY here.  just cuz a window can't iconify doesnt mean
1796        it can't be iconified with its parent
1797     */
1798
1799     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1800         if (self->frame) client_shade(self, FALSE);
1801         else self->shaded = FALSE;
1802     }
1803     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1804         if (self->frame) client_fullscreen(self, FALSE);
1805         else self->fullscreen = FALSE;
1806     }
1807     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1808                                                          self->max_vert)) {
1809         if (self->frame) client_maximize(self, FALSE, 0);
1810         else self->max_vert = self->max_horz = FALSE;
1811     }
1812 }
1813
1814 void client_update_wmhints(ObClient *self)
1815 {
1816     XWMHints *hints;
1817
1818     /* assume a window takes input if it doesn't specify */
1819     self->can_focus = TRUE;
1820
1821     if ((hints = XGetWMHints(obt_display, self->window)) != NULL) {
1822         gboolean ur;
1823
1824         if (hints->flags & InputHint)
1825             self->can_focus = hints->input;
1826
1827         /* only do this when first managing the window *AND* when we aren't
1828            starting up! */
1829         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1830             if (hints->flags & StateHint)
1831                 self->iconic = hints->initial_state == IconicState;
1832
1833         ur = self->urgent;
1834         self->urgent = (hints->flags & XUrgencyHint);
1835         if (self->urgent && !ur)
1836             client_hilite(self, TRUE);
1837         else if (!self->urgent && ur && self->demands_attention)
1838             client_hilite(self, FALSE);
1839
1840         if (!(hints->flags & WindowGroupHint))
1841             hints->window_group = None;
1842
1843         /* did the group state change? */
1844         if (hints->window_group !=
1845             (self->group ? self->group->leader : None))
1846         {
1847             ObGroup *oldgroup = self->group;
1848
1849             /* remove from the old group if there was one */
1850             if (self->group) {
1851                 group_remove(self->group, self);
1852                 self->group = NULL;
1853             }
1854
1855             /* add ourself to the group if we have one */
1856             if (hints->window_group != None) {
1857                 self->group = group_add(hints->window_group, self);
1858             }
1859
1860             /* Put ourselves into the new group's transient tree, and remove
1861                ourselves from the old group's */
1862             client_update_transient_tree(self, oldgroup, self->group,
1863                                          self->transient_for_group,
1864                                          self->transient_for_group,
1865                                          client_direct_parent(self),
1866                                          client_direct_parent(self));
1867
1868             /* Lastly, being in a group, or not, can change if the window is
1869                transient for anything.
1870
1871                The logic for this is:
1872                self->transient = TRUE always if the window wants to be
1873                transient for something, even if transient_for was NULL because
1874                it wasn't in a group before.
1875
1876                If parents was NULL and oldgroup was NULL we can assume
1877                that when we add the new group, it will become transient for
1878                something.
1879
1880                If transient_for_group is TRUE, then it must have already
1881                had a group. If it is getting a new group, the above call to
1882                client_update_transient_tree has already taken care of
1883                everything ! If it is losing all group status then it will
1884                no longer be transient for anything and that needs to be
1885                updated.
1886             */
1887             if (self->transient &&
1888                 ((self->parents == NULL && oldgroup == NULL) ||
1889                  (self->transient_for_group && !self->group)))
1890                 client_update_transient_for(self);
1891         }
1892
1893         /* the WM_HINTS can contain an icon */
1894         if (hints->flags & IconPixmapHint)
1895             client_update_icons(self);
1896
1897         XFree(hints);
1898     }
1899 }
1900
1901 void client_update_title(ObClient *self)
1902 {
1903     gchar *data = NULL;
1904     gchar *visible = NULL;
1905
1906     g_free(self->title);
1907     g_free(self->original_title);
1908
1909     /* try netwm */
1910     if (!OBT_PROP_GETS(self->window, NET_WM_NAME, utf8, &data)) {
1911         /* try old x stuff */
1912         if (!(OBT_PROP_GETS(self->window, WM_NAME, locale, &data)
1913               || OBT_PROP_GETS(self->window, WM_NAME, utf8, &data))) {
1914             if (self->transient) {
1915     /*
1916     GNOME alert windows are not given titles:
1917     http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1918     */
1919                 data = g_strdup("");
1920             } else
1921                 data = g_strdup(_("Unnamed Window"));
1922         }
1923     }
1924     self->original_title = g_strdup(data);
1925
1926     if (self->client_machine) {
1927         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1928         g_free(data);
1929     } else
1930         visible = data;
1931
1932     if (self->not_responding) {
1933         data = visible;
1934         if (self->kill_level > 0)
1935             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
1936         else
1937             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
1938         g_free(data);
1939     }
1940
1941     OBT_PROP_SETS(self->window, NET_WM_VISIBLE_NAME, utf8, visible);
1942     self->title = visible;
1943
1944     if (self->frame)
1945         frame_adjust_title(self->frame);
1946
1947     /* update the icon title */
1948     data = NULL;
1949     g_free(self->icon_title);
1950
1951     /* try netwm */
1952     if (!OBT_PROP_GETS(self->window, NET_WM_ICON_NAME, utf8, &data))
1953         /* try old x stuff */
1954         if (!(OBT_PROP_GETS(self->window, WM_ICON_NAME, locale, &data) ||
1955               OBT_PROP_GETS(self->window, WM_ICON_NAME, utf8, &data)))
1956             data = g_strdup(self->title);
1957
1958     if (self->client_machine) {
1959         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1960         g_free(data);
1961     } else
1962         visible = data;
1963
1964     if (self->not_responding) {
1965         data = visible;
1966         if (self->kill_level > 0)
1967             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
1968         else
1969             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
1970         g_free(data);
1971     }
1972
1973     OBT_PROP_SETS(self->window, NET_WM_VISIBLE_ICON_NAME, utf8, visible);
1974     self->icon_title = visible;
1975 }
1976
1977 void client_update_strut(ObClient *self)
1978 {
1979     guint num;
1980     guint32 *data;
1981     gboolean got = FALSE;
1982     StrutPartial strut;
1983
1984     if (OBT_PROP_GETA32(self->window, NET_WM_STRUT_PARTIAL, CARDINAL,
1985                         &data, &num))
1986     {
1987         if (num == 12) {
1988             got = TRUE;
1989             STRUT_PARTIAL_SET(strut,
1990                               data[0], data[2], data[1], data[3],
1991                               data[4], data[5], data[8], data[9],
1992                               data[6], data[7], data[10], data[11]);
1993         }
1994         g_free(data);
1995     }
1996
1997     if (!got &&
1998         OBT_PROP_GETA32(self->window, NET_WM_STRUT, CARDINAL, &data, &num)) {
1999         if (num == 4) {
2000             Rect *a;
2001
2002             got = TRUE;
2003
2004             /* use the screen's width/height */
2005             a = screen_physical_area_all_monitors();
2006
2007             STRUT_PARTIAL_SET(strut,
2008                               data[0], data[2], data[1], data[3],
2009                               a->y, a->y + a->height - 1,
2010                               a->x, a->x + a->width - 1,
2011                               a->y, a->y + a->height - 1,
2012                               a->x, a->x + a->width - 1);
2013             g_free(a);
2014         }
2015         g_free(data);
2016     }
2017
2018     if (!got)
2019         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2020                           0, 0, 0, 0, 0, 0, 0, 0);
2021
2022     if (!STRUT_EQUAL(strut, self->strut)) {
2023         self->strut = strut;
2024
2025         /* updating here is pointless while we're being mapped cuz we're not in
2026            the client list yet */
2027         if (self->frame)
2028             screen_update_areas();
2029     }
2030 }
2031
2032 void client_update_icons(ObClient *self)
2033 {
2034     guint num;
2035     guint32 *data;
2036     guint w, h, i, j;
2037     guint num_seen;  /* number of icons present */
2038     RrImage *img;
2039
2040     img = NULL;
2041
2042     /* grab the server, because we might be setting the window's icon and
2043        we don't want them to set it in between and we overwrite their own
2044        icon */
2045     grab_server(TRUE);
2046
2047     if (OBT_PROP_GETA32(self->window, NET_WM_ICON, CARDINAL, &data, &num)) {
2048         /* figure out how many valid icons are in here */
2049         i = 0;
2050         num_seen = 0;
2051         while (i + 2 < num) { /* +2 is to make sure there is a w and h */
2052             w = data[i++];
2053             h = data[i++];
2054             /* watch for the data being too small for the specified size,
2055                or for zero sized icons. */
2056             if (i + w*h > num || w == 0 || h == 0) break;
2057
2058             /* convert it to the right bit order for ObRender */
2059             for (j = 0; j < w*h; ++j)
2060                 data[i+j] =
2061                     (((data[i+j] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2062                     (((data[i+j] >> 16) & 0xff) << RrDefaultRedOffset)   +
2063                     (((data[i+j] >>  8) & 0xff) << RrDefaultGreenOffset) +
2064                     (((data[i+j] >>  0) & 0xff) << RrDefaultBlueOffset);
2065
2066             /* is it in the cache? */
2067             img = RrImageCacheFind(ob_rr_icons, &data[i], w, h);
2068             if (img) RrImageRef(img); /* own it */
2069
2070             i += w*h;
2071             ++num_seen;
2072
2073             /* don't bother looping anymore if we already found it in the cache
2074                since we'll just use that! */
2075             if (img) break;
2076         }
2077
2078         /* if it's not in the cache yet, then add it to the cache now.
2079            we have already converted it to the correct bit order above */
2080         if (!img && num_seen > 0) {
2081             img = RrImageNew(ob_rr_icons);
2082             i = 0;
2083             for (j = 0; j < num_seen; ++j) {
2084                 w = data[i++];
2085                 h = data[i++];
2086                 RrImageAddPicture(img, &data[i], w, h);
2087                 i += w*h;
2088             }
2089         }
2090
2091         g_free(data);
2092     }
2093
2094     /* if we didn't find an image from the NET_WM_ICON stuff, then try the
2095        legacy X hints */
2096     if (!img) {
2097         XWMHints *hints;
2098
2099         if ((hints = XGetWMHints(obt_display, self->window))) {
2100             if (hints->flags & IconPixmapHint) {
2101                 gboolean xicon;
2102                 obt_display_ignore_errors(TRUE);
2103                 xicon = RrPixmapToRGBA(ob_rr_inst,
2104                                        hints->icon_pixmap,
2105                                        (hints->flags & IconMaskHint ?
2106                                         hints->icon_mask : None),
2107                                        (gint*)&w, (gint*)&h, &data);
2108                 obt_display_ignore_errors(FALSE);
2109
2110                 if (xicon) {
2111                     if (w > 0 && h > 0) {
2112                         /* is this icon in the cache yet? */
2113                         img = RrImageCacheFind(ob_rr_icons, data, w, h);
2114                         if (img) RrImageRef(img); /* own it */
2115
2116                         /* if not, then add it */
2117                         if (!img) {
2118                             img = RrImageNew(ob_rr_icons);
2119                             RrImageAddPicture(img, data, w, h);
2120                         }
2121                     }
2122
2123                     g_free(data);
2124                 }
2125             }
2126             XFree(hints);
2127         }
2128     }
2129
2130     /* set the client's icons to be whatever we found */
2131     RrImageUnref(self->icon_set);
2132     self->icon_set = img;
2133
2134     /* if the client has no icon at all, then we set a default icon onto it.
2135        but, if it has parents, then one of them will have an icon already
2136     */
2137     if (!self->icon_set && !self->parents) {
2138         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2139         gulong *ldata; /* use a long here to satisfy OBT_PROP_SETA32 */
2140         gint32 r,g,b;
2141         r = g_random_int_range(0,255);
2142         g = g_random_int_range(0,255);
2143         b = g_random_int_range(0,255);
2144
2145         w = ob_rr_theme->def_win_icon_w;
2146         h = ob_rr_theme->def_win_icon_h;
2147         ldata = g_new(gulong, w*h+2);
2148         ldata[0] = w;
2149         ldata[1] = h;
2150         for (i = 0; i < w*h; ++i)
2151             ldata[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2152                 ((((icon[i] >> RrDefaultRedOffset) & 0xff)*r/255) << 16) +
2153                 ((((icon[i] >> RrDefaultGreenOffset) & 0xff)*g/255) << 8) +
2154                 ((((icon[i] >> RrDefaultBlueOffset) & 0xff)*b/255) << 0);
2155         OBT_PROP_SETA32(self->window, NET_WM_ICON, CARDINAL, ldata, w*h+2);
2156         g_free(ldata);
2157     } else if (self->frame)
2158         /* don't draw the icon empty if we're just setting one now anyways,
2159            we'll get the property change any second */
2160         frame_adjust_icon(self->frame);
2161
2162     grab_server(FALSE);
2163 }
2164
2165 void client_update_icon_geometry(ObClient *self)
2166 {
2167     guint num;
2168     guint32 *data;
2169
2170     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2171
2172     if (OBT_PROP_GETA32(self->window, NET_WM_ICON_GEOMETRY, CARDINAL,
2173                         &data, &num))
2174     {
2175         if (num == 4)
2176             /* don't let them set it with an area < 0 */
2177             RECT_SET(self->icon_geometry, data[0], data[1],
2178                      MAX(data[2],0), MAX(data[3],0));
2179         g_free(data);
2180     }
2181 }
2182
2183 static void client_get_session_ids(ObClient *self)
2184 {
2185     guint32 leader;
2186     gboolean got;
2187     gchar *s;
2188     gchar **ss;
2189
2190     if (!OBT_PROP_GET32(self->window, WM_CLIENT_LEADER, WINDOW, &leader))
2191         leader = None;
2192
2193     /* get the SM_CLIENT_ID */
2194     got = FALSE;
2195     if (leader)
2196         got = OBT_PROP_GETS(leader, SM_CLIENT_ID, locale, &self->sm_client_id);
2197     if (!got)
2198         OBT_PROP_GETS(self->window, SM_CLIENT_ID, locale, &self->sm_client_id);
2199
2200     /* get the WM_CLASS (name and class). make them "" if they are not
2201        provided */
2202     got = FALSE;
2203     if (leader)
2204         got = OBT_PROP_GETSS(leader, WM_CLASS, locale, &ss);
2205     if (!got)
2206         got = OBT_PROP_GETSS(self->window, WM_CLASS, locale, &ss);
2207
2208     if (got) {
2209         if (ss[0]) {
2210             self->name = g_strdup(ss[0]);
2211             if (ss[1])
2212                 self->class = g_strdup(ss[1]);
2213         }
2214         g_strfreev(ss);
2215     }
2216
2217     if (self->name == NULL) self->name = g_strdup("");
2218     if (self->class == NULL) self->class = g_strdup("");
2219
2220     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2221     got = FALSE;
2222     if (leader)
2223         got = OBT_PROP_GETS(leader, WM_WINDOW_ROLE, locale, &s);
2224     if (!got)
2225         got = OBT_PROP_GETS(self->window, WM_WINDOW_ROLE, locale, &s);
2226
2227     if (got)
2228         self->role = s;
2229     else
2230         self->role = g_strdup("");
2231
2232     /* get the WM_COMMAND */
2233     got = FALSE;
2234
2235     if (leader)
2236         got = OBT_PROP_GETSS(leader, WM_COMMAND, locale, &ss);
2237     if (!got)
2238         got = OBT_PROP_GETSS(self->window, WM_COMMAND, locale, &ss);
2239
2240     if (got) {
2241         /* merge/mash them all together */
2242         gchar *merge = NULL;
2243         gint i;
2244
2245         for (i = 0; ss[i]; ++i) {
2246             gchar *tmp = merge;
2247             if (merge)
2248                 merge = g_strconcat(merge, ss[i], NULL);
2249             else
2250                 merge = g_strconcat(ss[i], NULL);
2251             g_free(tmp);
2252         }
2253         g_strfreev(ss);
2254
2255         self->wm_command = merge;
2256     }
2257
2258     /* get the WM_CLIENT_MACHINE */
2259     got = FALSE;
2260     if (leader)
2261         got = OBT_PROP_GETS(leader, WM_CLIENT_MACHINE, locale, &s);
2262     if (!got)
2263         got = OBT_PROP_GETS(self->window, WM_CLIENT_MACHINE, locale, &s);
2264
2265     if (got) {
2266         gchar localhost[128];
2267         guint32 pid;
2268
2269         gethostname(localhost, 127);
2270         localhost[127] = '\0';
2271         if (strcmp(localhost, s) != 0)
2272             self->client_machine = s;
2273         else
2274             g_free(s);
2275
2276         /* see if it has the PID set too (the PID requires that the
2277            WM_CLIENT_MACHINE be set) */
2278         if (OBT_PROP_GET32(self->window, NET_WM_PID, CARDINAL, &pid))
2279             self->pid = pid;
2280     }
2281 }
2282
2283 static void client_change_wm_state(ObClient *self)
2284 {
2285     gulong state[2];
2286     glong old;
2287
2288     old = self->wmstate;
2289
2290     if (self->shaded || self->iconic ||
2291         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2292     {
2293         self->wmstate = IconicState;
2294     } else
2295         self->wmstate = NormalState;
2296
2297     if (old != self->wmstate) {
2298         OBT_PROP_MSG(ob_screen, self->window, KDE_WM_CHANGE_STATE,
2299                      self->wmstate, 1, 0, 0, 0);
2300
2301         state[0] = self->wmstate;
2302         state[1] = None;
2303         OBT_PROP_SETA32(self->window, WM_STATE, WM_STATE, state, 2);
2304     }
2305 }
2306
2307 static void client_change_state(ObClient *self)
2308 {
2309     gulong netstate[13];
2310     guint num;
2311
2312     num = 0;
2313     if (self->modal)
2314         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_MODAL);
2315     if (self->shaded)
2316         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_SHADED);
2317     if (self->iconic)
2318         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_HIDDEN);
2319     if (self->skip_taskbar)
2320         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR);
2321     if (self->skip_pager)
2322         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER);
2323     if (self->fullscreen)
2324         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN);
2325     if (self->max_vert)
2326         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT);
2327     if (self->max_horz)
2328         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ);
2329     if (self->above)
2330         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_ABOVE);
2331     if (self->below)
2332         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_BELOW);
2333     if (self->demands_attention)
2334         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION);
2335     if (self->undecorated)
2336         netstate[num++] = OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED);
2337     if (self->locked)
2338         netstate[num++] = OBT_PROP_ATOM(OB_WM_STATE_LOCKED);
2339     OBT_PROP_SETA32(self->window, NET_WM_STATE, ATOM, netstate, num);
2340
2341     if (self->frame)
2342         frame_adjust_state(self->frame);
2343 }
2344
2345 ObClient *client_search_focus_tree(ObClient *self)
2346 {
2347     GSList *it;
2348     ObClient *ret;
2349
2350     for (it = self->transients; it; it = g_slist_next(it)) {
2351         if (client_focused(it->data)) return it->data;
2352         if ((ret = client_search_focus_tree(it->data))) return ret;
2353     }
2354     return NULL;
2355 }
2356
2357 ObClient *client_search_focus_tree_full(ObClient *self)
2358 {
2359     if (self->parents) {
2360         GSList *it;
2361
2362         for (it = self->parents; it; it = g_slist_next(it)) {
2363             ObClient *c = it->data;
2364             if ((c = client_search_focus_tree_full(it->data))) return c;
2365         }
2366
2367         return NULL;
2368     }
2369     else {
2370         /* this function checks the whole tree, the client_search_focus_tree
2371            does not, so we need to check this window */
2372         if (client_focused(self))
2373             return self;
2374         return client_search_focus_tree(self);
2375     }
2376 }
2377
2378 ObClient *client_search_focus_group_full(ObClient *self)
2379 {
2380     GSList *it;
2381
2382     if (self->group) {
2383         for (it = self->group->members; it; it = g_slist_next(it)) {
2384             ObClient *c = it->data;
2385
2386             if (client_focused(c)) return c;
2387             if ((c = client_search_focus_tree(it->data))) return c;
2388         }
2389     } else
2390         if (client_focused(self)) return self;
2391     return NULL;
2392 }
2393
2394 gboolean client_has_parent(ObClient *self)
2395 {
2396     return self->parents != NULL;
2397 }
2398
2399 static ObStackingLayer calc_layer(ObClient *self)
2400 {
2401     ObStackingLayer l;
2402     Rect *monitor;
2403
2404     monitor = screen_physical_area_monitor(client_monitor(self));
2405
2406     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2407         l = OB_STACKING_LAYER_DESKTOP;
2408     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2409         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2410         else l = OB_STACKING_LAYER_ABOVE;
2411     }
2412     else if ((self->fullscreen ||
2413               /* No decorations and fills the monitor = oldskool fullscreen.
2414                  But not for maximized windows.
2415               */
2416               (self->decorations == 0 &&
2417                !(self->max_horz && self->max_vert) &&
2418                RECT_EQUAL(self->area, *monitor))) &&
2419              /* you are fullscreen while you or your children are focused.. */
2420              (client_focused(self) || client_search_focus_tree(self) ||
2421               /* you can be fullscreen if you're on another desktop */
2422               (self->desktop != screen_desktop &&
2423                self->desktop != DESKTOP_ALL) ||
2424               /* and you can also be fullscreen if the focused client is on
2425                  another monitor, or nothing else is focused */
2426               (!focus_client ||
2427                client_monitor(focus_client) != client_monitor(self))))
2428         l = OB_STACKING_LAYER_FULLSCREEN;
2429     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2430     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2431     else l = OB_STACKING_LAYER_NORMAL;
2432
2433     g_free(monitor);
2434
2435     return l;
2436 }
2437
2438 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2439                                         ObStackingLayer min)
2440 {
2441     ObStackingLayer old, own;
2442     GSList *it;
2443
2444     old = self->layer;
2445     own = calc_layer(self);
2446     self->layer = MAX(own, min);
2447
2448     if (self->layer != old) {
2449         stacking_remove(CLIENT_AS_WINDOW(self));
2450         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2451     }
2452
2453     /* we've been restacked */
2454     self->visited = TRUE;
2455
2456     for (it = self->transients; it; it = g_slist_next(it))
2457         client_calc_layer_recursive(it->data, orig,
2458                                     self->layer);
2459 }
2460
2461 static void client_calc_layer_internal(ObClient *self)
2462 {
2463     GSList *sit;
2464
2465     /* transients take on the layer of their parents */
2466     sit = client_search_all_top_parents(self);
2467
2468     for (; sit; sit = g_slist_next(sit))
2469         client_calc_layer_recursive(sit->data, self, 0);
2470 }
2471
2472 void client_calc_layer(ObClient *self)
2473 {
2474     GList *it;
2475
2476     /* skip over stuff above fullscreen layer */
2477     for (it = stacking_list; it; it = g_list_next(it))
2478         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2479
2480     /* find the windows in the fullscreen layer, and mark them not-visited */
2481     for (; it; it = g_list_next(it)) {
2482         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2483         else if (WINDOW_IS_CLIENT(it->data))
2484             WINDOW_AS_CLIENT(it->data)->visited = FALSE;
2485     }
2486
2487     client_calc_layer_internal(self);
2488
2489     /* skip over stuff above fullscreen layer */
2490     for (it = stacking_list; it; it = g_list_next(it))
2491         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2492
2493     /* now recalc any windows in the fullscreen layer which have not
2494        had their layer recalced already */
2495     for (; it; it = g_list_next(it)) {
2496         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2497         else if (WINDOW_IS_CLIENT(it->data) &&
2498                  !WINDOW_AS_CLIENT(it->data)->visited)
2499             client_calc_layer_internal(it->data);
2500     }
2501 }
2502
2503 gboolean client_should_show(ObClient *self)
2504 {
2505     if (self->iconic)
2506         return FALSE;
2507     if (client_normal(self) && screen_showing_desktop)
2508         return FALSE;
2509     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2510         return TRUE;
2511
2512     return FALSE;
2513 }
2514
2515 gboolean client_show(ObClient *self)
2516 {
2517     gboolean show = FALSE;
2518
2519     if (client_should_show(self)) {
2520         /* replay pending pointer event before showing the window, in case it
2521            should be going to something under the window */
2522         mouse_replay_pointer();
2523
2524         frame_show(self->frame);
2525         show = TRUE;
2526
2527         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2528            it needs to be in IconicState. This includes when it is on another
2529            desktop!
2530         */
2531         client_change_wm_state(self);
2532
2533         hooks_queue(OB_HOOK_WIN_VISIBLE, self);
2534     }
2535     return show;
2536 }
2537
2538 gboolean client_hide(ObClient *self)
2539 {
2540     gboolean hide = FALSE;
2541
2542     if (!client_should_show(self)) {
2543         if (self == focus_client) {
2544             event_cancel_all_key_grabs();
2545         }
2546
2547         /* We don't need to ignore enter events here.
2548            The window can hide/iconify in 3 different ways:
2549            1 - through an x message. in this case we ignore all enter events
2550                caused by responding to the x message (unless underMouse)
2551            2 - by a keyboard action. in this case we ignore all enter events
2552                caused by the action
2553            3 - by a mouse action. in this case they are doing stuff with the
2554                mouse and focus _should_ move.
2555
2556            Also in action_end, we simulate an enter event that can't be ignored
2557            so trying to ignore them is futile in case 3 anyways
2558         */
2559
2560         /* replay pending pointer event before hiding the window, in case it
2561            should be going to the window */
2562         mouse_replay_pointer();
2563
2564         frame_hide(self->frame);
2565         hide = TRUE;
2566
2567         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2568            it needs to be in IconicState. This includes when it is on another
2569            desktop!
2570         */
2571         client_change_wm_state(self);
2572
2573         hooks_queue(OB_HOOK_WIN_INVISIBLE, self);
2574     }
2575     return hide;
2576 }
2577
2578 void client_showhide(ObClient *self)
2579 {
2580     if (!client_show(self))
2581         client_hide(self);
2582 }
2583
2584 gboolean client_normal(ObClient *self) {
2585     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2586               self->type == OB_CLIENT_TYPE_DOCK ||
2587               self->type == OB_CLIENT_TYPE_SPLASH);
2588 }
2589
2590 gboolean client_helper(ObClient *self)
2591 {
2592     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2593             self->type == OB_CLIENT_TYPE_MENU ||
2594             self->type == OB_CLIENT_TYPE_TOOLBAR);
2595 }
2596
2597 gboolean client_mouse_focusable(ObClient *self)
2598 {
2599     return !(self->type == OB_CLIENT_TYPE_MENU ||
2600              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2601              self->type == OB_CLIENT_TYPE_SPLASH ||
2602              self->type == OB_CLIENT_TYPE_DOCK);
2603 }
2604
2605 gboolean client_enter_focusable(ObClient *self)
2606 {
2607     /* you can focus desktops but it shouldn't on enter */
2608     return (client_mouse_focusable(self) &&
2609             self->type != OB_CLIENT_TYPE_DESKTOP);
2610 }
2611
2612 static void client_apply_startup_state(ObClient *self,
2613                                        gint x, gint y, gint w, gint h)
2614 {
2615     /* save the states that we are going to apply */
2616     gboolean iconic = self->iconic;
2617     gboolean fullscreen = self->fullscreen;
2618     gboolean undecorated = self->undecorated;
2619     gboolean shaded = self->shaded;
2620     gboolean demands_attention = self->demands_attention;
2621     gboolean max_horz = self->max_horz;
2622     gboolean max_vert = self->max_vert;
2623     Rect oldarea;
2624     gint l;
2625
2626     /* turn them all off in the client, so they won't affect the window
2627        being placed */
2628     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2629         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2630
2631     /* move the client to its placed position, or it it's already there,
2632        generate a ConfigureNotify telling the client where it is.
2633
2634        do this after adjusting the frame. otherwise it gets all weird and
2635        clients don't work right
2636
2637        do this before applying the states so they have the correct
2638        pre-max/pre-fullscreen values
2639     */
2640     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2641     ob_debug("placed window 0x%x at %d, %d with size %d x %d",
2642              self->window, x, y, w, h);
2643     /* save the area, and make it where it should be for the premax stuff */
2644     oldarea = self->area;
2645     RECT_SET(self->area, x, y, w, h);
2646
2647     /* apply the states. these are in a carefully crafted order.. */
2648
2649     if (iconic)
2650         client_iconify(self, TRUE, FALSE, TRUE);
2651     if (fullscreen)
2652         client_fullscreen(self, TRUE);
2653     if (undecorated)
2654         client_set_undecorated(self, TRUE);
2655     if (shaded)
2656         client_shade(self, TRUE);
2657     if (demands_attention)
2658         client_hilite(self, TRUE);
2659
2660     if (max_vert && max_horz)
2661         client_maximize(self, TRUE, 0);
2662     else if (max_vert)
2663         client_maximize(self, TRUE, 2);
2664     else if (max_horz)
2665         client_maximize(self, TRUE, 1);
2666
2667     /* if the window hasn't been configured yet, then do so now, in fact the
2668        x,y,w,h may _not_ be the same as the area rect, which can end up
2669        meaning that the client isn't properly moved/resized by the fullscreen
2670        function
2671        pho can cause this because it maps at size of the screen but not 0,0
2672        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2673        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2674        cuz thats where the pre-fullscreen will be. however the actual area is
2675        not, so this needs to be called even if we have fullscreened/maxed
2676     */
2677     self->area = oldarea;
2678     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2679
2680     /* set the desktop hint, to make sure that it always exists */
2681     OBT_PROP_SET32(self->window, NET_WM_DESKTOP, CARDINAL, self->desktop);
2682
2683     /* nothing to do for the other states:
2684        skip_taskbar
2685        skip_pager
2686        modal
2687        above
2688        below
2689     */
2690 }
2691
2692 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2693 {
2694     /* these should be the current values. this is for when you're not moving,
2695        just resizing */
2696     g_assert(*x == self->area.x);
2697     g_assert(oldw == self->area.width);
2698
2699     /* horizontal */
2700     switch (self->gravity) {
2701     default:
2702     case NorthWestGravity:
2703     case WestGravity:
2704     case SouthWestGravity:
2705     case StaticGravity:
2706     case ForgetGravity:
2707         break;
2708     case NorthGravity:
2709     case CenterGravity:
2710     case SouthGravity:
2711         *x -= (neww - oldw) / 2;
2712         break;
2713     case NorthEastGravity:
2714     case EastGravity:
2715     case SouthEastGravity:
2716         *x -= neww - oldw;
2717         break;
2718     }
2719 }
2720
2721 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2722 {
2723     /* these should be the current values. this is for when you're not moving,
2724        just resizing */
2725     g_assert(*y == self->area.y);
2726     g_assert(oldh == self->area.height);
2727
2728     /* vertical */
2729     switch (self->gravity) {
2730     default:
2731     case NorthWestGravity:
2732     case NorthGravity:
2733     case NorthEastGravity:
2734     case StaticGravity:
2735     case ForgetGravity:
2736         break;
2737     case WestGravity:
2738     case CenterGravity:
2739     case EastGravity:
2740         *y -= (newh - oldh) / 2;
2741         break;
2742     case SouthWestGravity:
2743     case SouthGravity:
2744     case SouthEastGravity:
2745         *y -= newh - oldh;
2746         break;
2747     }
2748 }
2749
2750 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2751                           gint *logicalw, gint *logicalh,
2752                           gboolean user)
2753 {
2754     Rect desired = {*x, *y, *w, *h};
2755     frame_rect_to_frame(self->frame, &desired);
2756
2757     /* make the frame recalculate its dimensions n shit without changing
2758        anything visible for real, this way the constraints below can work with
2759        the updated frame dimensions. */
2760     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2761
2762     /* gets the frame's position */
2763     frame_client_gravity(self->frame, x, y);
2764
2765     /* these positions are frame positions, not client positions */
2766
2767     /* set the size and position if fullscreen */
2768     if (self->fullscreen) {
2769         Rect *a;
2770         guint i;
2771
2772         i = screen_find_monitor(&desired);
2773         a = screen_physical_area_monitor(i);
2774
2775         *x = a->x;
2776         *y = a->y;
2777         *w = a->width;
2778         *h = a->height;
2779
2780         user = FALSE; /* ignore if the client can't be moved/resized when it
2781                          is fullscreening */
2782
2783         g_free(a);
2784     } else if (self->max_horz || self->max_vert) {
2785         Rect *a;
2786         guint i;
2787
2788         /* use all possible struts when maximizing to the full screen */
2789         i = screen_find_monitor(&desired);
2790         a = screen_area(self->desktop, i,
2791                         (self->max_horz && self->max_vert ? NULL : &desired));
2792
2793         /* set the size and position if maximized */
2794         if (self->max_horz) {
2795             *x = a->x;
2796             *w = a->width - self->frame->size.left - self->frame->size.right;
2797         }
2798         if (self->max_vert) {
2799             *y = a->y;
2800             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2801         }
2802
2803         user = FALSE; /* ignore if the client can't be moved/resized when it
2804                          is maximizing */
2805
2806         g_free(a);
2807     }
2808
2809     /* gets the client's position */
2810     frame_frame_gravity(self->frame, x, y);
2811
2812     /* work within the preferred sizes given by the window, these may have
2813        changed rather than it's requested width and height, so always run
2814        through this code */
2815     {
2816         gint basew, baseh, minw, minh;
2817         gint incw, inch;
2818         gfloat minratio, maxratio;
2819
2820         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2821         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2822         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2823             0 : self->min_ratio;
2824         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2825             0 : self->max_ratio;
2826
2827         /* base size is substituted with min size if not specified */
2828         if (self->base_size.width >= 0 || self->base_size.height >= 0) {
2829             basew = self->base_size.width;
2830             baseh = self->base_size.height;
2831         } else {
2832             basew = self->min_size.width;
2833             baseh = self->min_size.height;
2834         }
2835         /* min size is substituted with base size if not specified */
2836         if (self->min_size.width || self->min_size.height) {
2837             minw = self->min_size.width;
2838             minh = self->min_size.height;
2839         } else {
2840             minw = self->base_size.width;
2841             minh = self->base_size.height;
2842         }
2843
2844         /* This comment is no longer true */
2845         /* if this is a user-requested resize, then check against min/max
2846            sizes */
2847
2848         /* smaller than min size or bigger than max size? */
2849         if (*w > self->max_size.width) *w = self->max_size.width;
2850         if (*w < minw) *w = minw;
2851         if (*h > self->max_size.height) *h = self->max_size.height;
2852         if (*h < minh) *h = minh;
2853
2854         *w -= basew;
2855         *h -= baseh;
2856
2857         /* keep to the increments */
2858         *w /= incw;
2859         *h /= inch;
2860
2861         /* you cannot resize to nothing */
2862         if (basew + *w < 1) *w = 1 - basew;
2863         if (baseh + *h < 1) *h = 1 - baseh;
2864
2865         /* save the logical size */
2866         *logicalw = incw > 1 ? *w : *w + basew;
2867         *logicalh = inch > 1 ? *h : *h + baseh;
2868
2869         *w *= incw;
2870         *h *= inch;
2871
2872         *w += basew;
2873         *h += baseh;
2874
2875         /* adjust the height to match the width for the aspect ratios.
2876            for this, min size is not substituted for base size ever. */
2877         *w -= self->base_size.width;
2878         *h -= self->base_size.height;
2879
2880         if (minratio)
2881             if (*h * minratio > *w) {
2882                 *h = (gint)(*w / minratio);
2883
2884                 /* you cannot resize to nothing */
2885                 if (*h < 1) {
2886                     *h = 1;
2887                     *w = (gint)(*h * minratio);
2888                 }
2889             }
2890         if (maxratio)
2891             if (*h * maxratio < *w) {
2892                 *h = (gint)(*w / maxratio);
2893
2894                 /* you cannot resize to nothing */
2895                 if (*h < 1) {
2896                     *h = 1;
2897                     *w = (gint)(*h * minratio);
2898                 }
2899             }
2900
2901         *w += self->base_size.width;
2902         *h += self->base_size.height;
2903     }
2904
2905     /* these override the above states! if you cant move you can't move! */
2906     if (user) {
2907         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2908             *x = self->area.x;
2909             *y = self->area.y;
2910         }
2911         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2912             *w = self->area.width;
2913             *h = self->area.height;
2914         }
2915     }
2916
2917     g_assert(*w > 0);
2918     g_assert(*h > 0);
2919 }
2920
2921 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2922                       gboolean user, gboolean final, gboolean force_reply)
2923 {
2924     Rect oldframe;
2925     gint oldw, oldh;
2926     gboolean send_resize_client;
2927     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
2928     gboolean fmoved, fresized;
2929     guint fdecor = self->frame->decorations;
2930     gboolean fhorz = self->frame->max_horz;
2931     gboolean fvert = self->frame->max_vert;
2932     gint logicalw, logicalh;
2933
2934     /* find the new x, y, width, and height (and logical size) */
2935     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2936
2937     /* set the logical size if things changed */
2938     if (!(w == self->area.width && h == self->area.height))
2939         SIZE_SET(self->logical_size, logicalw, logicalh);
2940
2941     /* figure out if we moved or resized or what */
2942     moved = (x != self->area.x || y != self->area.y);
2943     resized = (w != self->area.width || h != self->area.height);
2944
2945     oldw = self->area.width;
2946     oldh = self->area.height;
2947     oldframe = self->frame->area;
2948     RECT_SET(self->area, x, y, w, h);
2949
2950     /* for app-requested resizes, always resize if 'resized' is true.
2951        for user-requested ones, only resize if final is true, or when
2952        resizing in redraw mode */
2953     send_resize_client = ((!user && resized) ||
2954                           (user && (final ||
2955                                     (resized && config_resize_redraw))));
2956
2957     /* if the client is enlarging, then resize the client before the frame */
2958     if (send_resize_client && (w > oldw || h > oldh)) {
2959         XMoveResizeWindow(obt_display, self->window,
2960                           self->frame->size.left, self->frame->size.top,
2961                           MAX(w, oldw), MAX(h, oldh));
2962         frame_adjust_client_area(self->frame);
2963     }
2964
2965     /* find the frame's dimensions and move/resize it */
2966     fmoved = moved;
2967     fresized = resized;
2968
2969     /* if decorations changed, then readjust everything for the frame */
2970     if (self->decorations != fdecor ||
2971         self->max_horz != fhorz || self->max_vert != fvert)
2972     {
2973         fmoved = fresized = TRUE;
2974     }
2975
2976     /* adjust the frame */
2977     if (fmoved || fresized) {
2978         gulong ignore_start;
2979         if (!user)
2980             ignore_start = event_start_ignore_all_enters();
2981
2982         /* replay pending pointer event before move the window, in case it
2983            would change what window gets the event */
2984         mouse_replay_pointer();
2985
2986         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2987
2988         if (!user)
2989             event_end_ignore_all_enters(ignore_start);
2990     }
2991
2992     if (!user || final) {
2993         gint oldrx = self->root_pos.x;
2994         gint oldry = self->root_pos.y;
2995         /* we have reset the client to 0 border width, so don't include
2996            it in these coords */
2997         POINT_SET(self->root_pos,
2998                   self->frame->area.x + self->frame->size.left -
2999                   self->border_width,
3000                   self->frame->area.y + self->frame->size.top -
3001                   self->border_width);
3002         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
3003             rootmoved = TRUE;
3004     }
3005
3006     /* This is kinda tricky and should not be changed.. let me explain!
3007
3008        When user = FALSE, then the request is coming from the application
3009        itself, and we are more strict about when to send a synthetic
3010        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3011        in this case (if force_reply is true)
3012
3013        When user = TRUE, then the request is coming from "us", like when we
3014        maximize a window or something.  In this case we are more lenient.  We
3015        used to follow the same rules as above, but _Java_ Swing can't handle
3016        this. So just to appease Swing, when user = TRUE, we always send
3017        a synthetic ConfigureNotify to give the window its root coordinates.
3018     */
3019     if ((!user && !resized && (rootmoved || force_reply)) ||
3020         (user && final && rootmoved))
3021     {
3022         XEvent event;
3023
3024         event.type = ConfigureNotify;
3025         event.xconfigure.display = obt_display;
3026         event.xconfigure.event = self->window;
3027         event.xconfigure.window = self->window;
3028
3029         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d",
3030                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3031
3032         /* root window real coords */
3033         event.xconfigure.x = self->root_pos.x;
3034         event.xconfigure.y = self->root_pos.y;
3035         event.xconfigure.width = w;
3036         event.xconfigure.height = h;
3037         event.xconfigure.border_width = self->border_width;
3038         event.xconfigure.above = None;
3039         event.xconfigure.override_redirect = FALSE;
3040         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3041                    FALSE, StructureNotifyMask, &event);
3042     }
3043
3044     /* if the client is shrinking, then resize the frame before the client.
3045
3046        both of these resize sections may run, because the top one only resizes
3047        in the direction that is growing
3048      */
3049     if (send_resize_client && (w <= oldw || h <= oldh)) {
3050         frame_adjust_client_area(self->frame);
3051         XMoveResizeWindow(obt_display, self->window,
3052                           self->frame->size.left, self->frame->size.top, w, h);
3053     }
3054
3055     XFlush(obt_display);
3056
3057     /* if it moved between monitors, then this can affect the stacking
3058        layer of this window or others - for fullscreen windows */
3059     if (screen_find_monitor(&self->frame->area) !=
3060         screen_find_monitor(&oldframe))
3061     {
3062         client_calc_layer(self);
3063     }
3064 }
3065
3066 void client_fullscreen(ObClient *self, gboolean fs)
3067 {
3068     gint x, y, w, h;
3069
3070     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3071         self->fullscreen == fs) return;                   /* already done */
3072
3073     self->fullscreen = fs;
3074     client_change_state(self); /* change the state hints on the client */
3075
3076     if (fs) {
3077         self->pre_fullscreen_area = self->area;
3078         /* if the window is maximized, its area isn't all that meaningful.
3079            save its premax area instead. */
3080         if (self->max_horz) {
3081             self->pre_fullscreen_area.x = self->pre_max_area.x;
3082             self->pre_fullscreen_area.width = self->pre_max_area.width;
3083         }
3084         if (self->max_vert) {
3085             self->pre_fullscreen_area.y = self->pre_max_area.y;
3086             self->pre_fullscreen_area.height = self->pre_max_area.height;
3087         }
3088
3089         /* these will help configure_full figure out where to fullscreen
3090            the window */
3091         x = self->area.x;
3092         y = self->area.y;
3093         w = self->area.width;
3094         h = self->area.height;
3095     } else {
3096         g_assert(self->pre_fullscreen_area.width > 0 &&
3097                  self->pre_fullscreen_area.height > 0);
3098
3099         x = self->pre_fullscreen_area.x;
3100         y = self->pre_fullscreen_area.y;
3101         w = self->pre_fullscreen_area.width;
3102         h = self->pre_fullscreen_area.height;
3103         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3104     }
3105
3106     ob_debug("Window %s going fullscreen (%d)",
3107              self->title, self->fullscreen);
3108
3109     client_setup_decor_and_functions(self, FALSE);
3110     client_move_resize(self, x, y, w, h);
3111
3112     /* and adjust our layer/stacking. do this after resizing the window,
3113        and applying decorations, because windows which fill the screen are
3114        considered "fullscreen" and it affects their layer */
3115     client_calc_layer(self);
3116
3117     if (fs) {
3118         /* try focus us when we go into fullscreen mode */
3119         client_focus(self);
3120     }
3121 }
3122
3123 static void client_iconify_recursive(ObClient *self,
3124                                      gboolean iconic, gboolean curdesk,
3125                                      gboolean hide_animation)
3126 {
3127     GSList *it;
3128     gboolean changed = FALSE;
3129
3130     if (self->iconic != iconic) {
3131         ob_debug("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
3132                  self->window);
3133
3134         if (iconic) {
3135             /* don't let non-normal windows iconify along with their parents
3136                or whatever */
3137             if (client_normal(self)) {
3138                 self->iconic = iconic;
3139
3140                 /* update the focus lists.. iconic windows go to the bottom of
3141                    the list */
3142                 focus_order_to_bottom(self);
3143
3144                 changed = TRUE;
3145             }
3146         } else {
3147             self->iconic = iconic;
3148
3149             if (curdesk && self->desktop != screen_desktop &&
3150                 self->desktop != DESKTOP_ALL)
3151                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3152
3153             /* this puts it after the current focused window */
3154             focus_order_remove(self);
3155             focus_order_add_new(self);
3156
3157             changed = TRUE;
3158         }
3159     }
3160
3161     if (changed) {
3162         client_change_state(self);
3163         if (config_animate_iconify && !hide_animation)
3164             frame_begin_iconify_animation(self->frame, iconic);
3165         /* do this after starting the animation so it doesn't flash */
3166         client_showhide(self);
3167
3168         hooks_queue((iconic ? OB_HOOK_WIN_ICONIC : OB_HOOK_WIN_UNICONIC),
3169                     self);
3170     }
3171
3172     /* iconify all direct transients, and deiconify all transients
3173        (non-direct too) */
3174     for (it = self->transients; it; it = g_slist_next(it))
3175         if (it->data != self)
3176             if (client_is_direct_child(self, it->data) || !iconic)
3177                 client_iconify_recursive(it->data, iconic, curdesk,
3178                                          hide_animation);
3179 }
3180
3181 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3182                     gboolean hide_animation)
3183 {
3184     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3185         /* move up the transient chain as far as possible first */
3186         self = client_search_top_direct_parent(self);
3187         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3188     }
3189 }
3190
3191 void client_maximize(ObClient *self, gboolean max, gint dir)
3192 {
3193     gint x, y, w, h;
3194
3195     g_assert(dir == 0 || dir == 1 || dir == 2);
3196     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && max) return;/* can't */
3197
3198     /* check if already done */
3199     if (max) {
3200         if (dir == 0 && self->max_horz && self->max_vert) return;
3201         if (dir == 1 && self->max_horz) return;
3202         if (dir == 2 && self->max_vert) return;
3203     } else {
3204         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3205         if (dir == 1 && !self->max_horz) return;
3206         if (dir == 2 && !self->max_vert) return;
3207     }
3208
3209     /* these will help configure_full figure out which screen to fill with
3210        the window */
3211     x = self->area.x;
3212     y = self->area.y;
3213     w = self->area.width;
3214     h = self->area.height;
3215
3216     if (max) {
3217         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3218             RECT_SET(self->pre_max_area,
3219                      self->area.x, self->pre_max_area.y,
3220                      self->area.width, self->pre_max_area.height);
3221         }
3222         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3223             RECT_SET(self->pre_max_area,
3224                      self->pre_max_area.x, self->area.y,
3225                      self->pre_max_area.width, self->area.height);
3226         }
3227     } else {
3228         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3229             g_assert(self->pre_max_area.width > 0);
3230
3231             x = self->pre_max_area.x;
3232             w = self->pre_max_area.width;
3233
3234             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3235                      0, self->pre_max_area.height);
3236         }
3237         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3238             g_assert(self->pre_max_area.height > 0);
3239
3240             y = self->pre_max_area.y;
3241             h = self->pre_max_area.height;
3242
3243             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3244                      self->pre_max_area.width, 0);
3245         }
3246     }
3247
3248     if (dir == 0 || dir == 1) /* horz */
3249         self->max_horz = max;
3250     if (dir == 0 || dir == 2) /* vert */
3251         self->max_vert = max;
3252
3253     client_change_state(self); /* change the state hints on the client */
3254
3255     client_setup_decor_and_functions(self, FALSE);
3256     client_move_resize(self, x, y, w, h);
3257
3258     hooks_queue((max ? OB_HOOK_WIN_MAX : OB_HOOK_WIN_UNMAX), self);
3259 }
3260
3261 void client_shade(ObClient *self, gboolean shade)
3262 {
3263     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3264          shade) ||                         /* can't shade */
3265         self->shaded == shade) return;     /* already done */
3266
3267     self->shaded = shade;
3268     client_change_state(self);
3269     client_change_wm_state(self); /* the window is being hidden/shown */
3270     /* resize the frame to just the titlebar */
3271     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3272
3273     hooks_queue((shade ? OB_HOOK_WIN_SHADE : OB_HOOK_WIN_UNSHADE), self);
3274 }
3275
3276 static void client_ping_event(ObClient *self, gboolean dead)
3277 {
3278     if (self->not_responding != dead) {
3279         self->not_responding = dead;
3280         client_update_title(self);
3281
3282         if (dead)
3283             /* the client isn't responding, so ask to kill it */
3284             client_prompt_kill(self);
3285         else {
3286             /* it came back to life ! */
3287
3288             if (self->kill_prompt) {
3289                 prompt_unref(self->kill_prompt);
3290                 self->kill_prompt = NULL;
3291             }
3292
3293             self->kill_level = 0;
3294         }
3295     }
3296 }
3297
3298 void client_close(ObClient *self)
3299 {
3300     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3301
3302     /* if closing an internal obprompt, that is just cancelling it */
3303     if (self->prompt) {
3304         prompt_cancel(self->prompt);
3305         return;
3306     }
3307
3308     /* in the case that the client provides no means to requesting that it
3309        close, we just kill it */
3310     if (!self->delete_window)
3311         /* don't use client_kill(), we should only kill based on PID in
3312            response to a lack of PING replies */
3313         XKillClient(obt_display, self->window);
3314     else {
3315         /* request the client to close with WM_DELETE_WINDOW */
3316         OBT_PROP_MSG_TO(self->window, self->window, WM_PROTOCOLS,
3317                         OBT_PROP_ATOM(WM_DELETE_WINDOW), event_curtime,
3318                         0, 0, 0, NoEventMask);
3319
3320         /* we're trying to close the window, so see if it is responding. if it
3321            is not, then we will let them kill the window */
3322         if (self->ping)
3323             ping_start(self, client_ping_event);
3324
3325         /* if we already know the window isn't responding (maybe they clicked
3326            no in the kill dialog but it hasn't come back to life), then show
3327            the kill dialog */
3328         if (self->not_responding)
3329             client_prompt_kill(self);
3330     }
3331 }
3332
3333 #define OB_KILL_RESULT_NO 0
3334 #define OB_KILL_RESULT_YES 1
3335
3336 static gboolean client_kill_requested(ObPrompt *p, gint result, gpointer data)
3337 {
3338     ObClient *self = data;
3339
3340     if (result == OB_KILL_RESULT_YES)
3341         client_kill(self);
3342     return TRUE; /* call the cleanup func */
3343 }
3344
3345 static void client_kill_cleanup(ObPrompt *p, gpointer data)
3346 {
3347     ObClient *self = data;
3348
3349     g_assert(p == self->kill_prompt);
3350
3351     prompt_unref(self->kill_prompt);
3352     self->kill_prompt = NULL;
3353 }
3354
3355 static void client_prompt_kill(ObClient *self)
3356 {
3357     /* check if we're already prompting */
3358     if (!self->kill_prompt) {
3359         ObPromptAnswer answers[] = {
3360             { 0, OB_KILL_RESULT_NO },
3361             { 0, OB_KILL_RESULT_YES }
3362         };
3363         gchar *m;
3364         const gchar *y, *title;
3365
3366         title = self->original_title;
3367         if (title[0] == '\0') {
3368             /* empty string, so use its parent */
3369             ObClient *p = client_search_top_direct_parent(self);
3370             if (p) title = p->original_title;
3371         }
3372
3373         if (client_on_localhost(self)) {
3374             const gchar *sig;
3375
3376             if (self->kill_level == 0)
3377                 sig = "terminate";
3378             else
3379                 sig = "kill";
3380
3381             m = g_strdup_printf
3382                 (_("The window \"%s\" does not seem to be responding.  Do you want to force it to exit by sending the %s signal?"),
3383                  title, sig);
3384             y = _("End Process");
3385         }
3386         else {
3387             m = g_strdup_printf
3388                 (_("The window \"%s\" does not seem to be responding.  Do you want to disconnect it from the X server?"),
3389                  title);
3390             y = _("Disconnect");
3391         }
3392         /* set the dialog buttons' text */
3393         answers[0].text = _("Cancel");  /* "no" */
3394         answers[1].text = y;            /* "yes" */
3395
3396         self->kill_prompt = prompt_new(m, NULL, answers,
3397                                        sizeof(answers)/sizeof(answers[0]),
3398                                        OB_KILL_RESULT_NO, /* default = no */
3399                                        OB_KILL_RESULT_NO, /* cancel = no */
3400                                        client_kill_requested,
3401                                        client_kill_cleanup,
3402                                        self);
3403         g_free(m);
3404     }
3405
3406     prompt_show(self->kill_prompt, self, TRUE);
3407 }
3408
3409 void client_kill(ObClient *self)
3410 {
3411     /* don't kill our own windows */
3412     if (self->prompt) return;
3413
3414     if (client_on_localhost(self) && self->pid) {
3415         /* running on the local host */
3416         if (self->kill_level == 0) {
3417             ob_debug("killing window 0x%x with pid %lu, with SIGTERM",
3418                      self->window, self->pid);
3419             kill(self->pid, SIGTERM);
3420             ++self->kill_level;
3421
3422             /* show that we're trying to kill it */
3423             client_update_title(self);
3424         }
3425         else {
3426             ob_debug("killing window 0x%x with pid %lu, with SIGKILL",
3427                      self->window, self->pid);
3428             kill(self->pid, SIGKILL); /* kill -9 */
3429         }
3430     }
3431     else {
3432         /* running on a remote host */
3433         XKillClient(obt_display, self->window);
3434     }
3435 }
3436
3437 void client_hilite(ObClient *self, gboolean hilite)
3438 {
3439     if (self->demands_attention == hilite)
3440         return; /* no change */
3441
3442     /* don't allow focused windows to hilite */
3443     self->demands_attention = hilite && !client_focused(self);
3444     if (self->frame != NULL) { /* if we're mapping, just set the state */
3445         if (self->demands_attention)
3446             frame_flash_start(self->frame);
3447         else
3448             frame_flash_stop(self->frame);
3449         client_change_state(self);
3450     }
3451 }
3452
3453 static void client_set_desktop_recursive(ObClient *self,
3454                                          guint target,
3455                                          gboolean donthide,
3456                                          gboolean dontraise)
3457 {
3458     guint old;
3459     GSList *it;
3460
3461     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3462
3463         ob_debug("Setting desktop %u", target+1);
3464
3465         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3466
3467         old = self->desktop;
3468         self->desktop = target;
3469         OBT_PROP_SET32(self->window, NET_WM_DESKTOP, CARDINAL, target);
3470         /* the frame can display the current desktop state */
3471         frame_adjust_state(self->frame);
3472         /* 'move' the window to the new desktop */
3473         if (!donthide)
3474             client_hide(self);
3475         client_show(self);
3476         /* raise if it was not already on the desktop */
3477         if (old != DESKTOP_ALL && !dontraise)
3478             stacking_raise(CLIENT_AS_WINDOW(self));
3479         if (STRUT_EXISTS(self->strut))
3480             screen_update_areas();
3481         else
3482             /* the new desktop's geometry may be different, so we may need to
3483                resize, for example if we are maximized */
3484             client_reconfigure(self, FALSE);
3485
3486         if (old != self->desktop)
3487             hooks_queue(OB_HOOK_WIN_DESK_CHANGE, self);
3488     }
3489
3490     /* move all transients */
3491     for (it = self->transients; it; it = g_slist_next(it))
3492         if (it->data != self)
3493             if (client_is_direct_child(self, it->data))
3494                 client_set_desktop_recursive(it->data, target,
3495                                              donthide, dontraise);
3496 }
3497
3498 void client_set_desktop(ObClient *self, guint target,
3499                         gboolean donthide, gboolean dontraise)
3500 {
3501     self = client_search_top_direct_parent(self);
3502     client_set_desktop_recursive(self, target, donthide, dontraise);
3503 }
3504
3505 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3506 {
3507     while (child != parent && (child = client_direct_parent(child)));
3508     return child == parent;
3509 }
3510
3511 ObClient *client_search_modal_child(ObClient *self)
3512 {
3513     GSList *it;
3514     ObClient *ret;
3515
3516     for (it = self->transients; it; it = g_slist_next(it)) {
3517         ObClient *c = it->data;
3518         if ((ret = client_search_modal_child(c))) return ret;
3519         if (c->modal) return c;
3520     }
3521     return NULL;
3522 }
3523
3524 gboolean client_validate(ObClient *self)
3525 {
3526     XEvent e;
3527
3528     XSync(obt_display, FALSE); /* get all events on the server */
3529
3530     if (XCheckTypedWindowEvent(obt_display, self->window, DestroyNotify, &e) ||
3531         XCheckTypedWindowEvent(obt_display, self->window, UnmapNotify, &e))
3532     {
3533         XPutBackEvent(obt_display, &e);
3534         return FALSE;
3535     }
3536
3537     return TRUE;
3538 }
3539
3540 void client_set_wm_state(ObClient *self, glong state)
3541 {
3542     if (state == self->wmstate) return; /* no change */
3543
3544     switch (state) {
3545     case IconicState:
3546         client_iconify(self, TRUE, TRUE, FALSE);
3547         break;
3548     case NormalState:
3549         client_iconify(self, FALSE, TRUE, FALSE);
3550         break;
3551     }
3552 }
3553
3554 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3555 {
3556     gboolean shaded = self->shaded;
3557     gboolean fullscreen = self->fullscreen;
3558     gboolean undecorated = self->undecorated;
3559     gboolean locked = self->locked;
3560     gboolean max_horz = self->max_horz;
3561     gboolean max_vert = self->max_vert;
3562     gboolean modal = self->modal;
3563     gboolean iconic = self->iconic;
3564     gboolean demands_attention = self->demands_attention;
3565     gboolean above = self->above;
3566     gboolean below = self->below;
3567     gint i;
3568     gboolean value;
3569
3570     if (!(action == OBT_PROP_ATOM(NET_WM_STATE_ADD) ||
3571           action == OBT_PROP_ATOM(NET_WM_STATE_REMOVE) ||
3572           action == OBT_PROP_ATOM(NET_WM_STATE_TOGGLE)))
3573         /* an invalid action was passed to the client message, ignore it */
3574         return;
3575
3576     for (i = 0; i < 2; ++i) {
3577         Atom state = i == 0 ? data1 : data2;
3578
3579         if (!state) continue;
3580
3581         /* if toggling, then pick whether we're adding or removing */
3582         if (action == OBT_PROP_ATOM(NET_WM_STATE_TOGGLE)) {
3583             if (state == OBT_PROP_ATOM(NET_WM_STATE_MODAL))
3584                 value = modal;
3585             else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT))
3586                 value = self->max_vert;
3587             else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ))
3588                 value = self->max_horz;
3589             else if (state == OBT_PROP_ATOM(NET_WM_STATE_SHADED))
3590                 value = shaded;
3591             else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR))
3592                 value = self->skip_taskbar;
3593             else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER))
3594                 value = self->skip_pager;
3595             else if (state == OBT_PROP_ATOM(NET_WM_STATE_HIDDEN))
3596                 value = self->iconic;
3597             else if (state == OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN))
3598                 value = fullscreen;
3599             else if (state == OBT_PROP_ATOM(NET_WM_STATE_ABOVE))
3600                 value = self->above;
3601             else if (state == OBT_PROP_ATOM(NET_WM_STATE_BELOW))
3602                 value = self->below;
3603             else if (state == OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION))
3604                 value = self->demands_attention;
3605             else if (state == OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED))
3606                 value = undecorated;
3607             else if (state == OBT_PROP_ATOM(OB_WM_STATE_LOCKED))
3608                 value = locked;
3609             action = value ? OBT_PROP_ATOM(NET_WM_STATE_REMOVE) :
3610                              OBT_PROP_ATOM(NET_WM_STATE_ADD);
3611         }
3612
3613         value = action == OBT_PROP_ATOM(NET_WM_STATE_ADD);
3614         if (state == OBT_PROP_ATOM(NET_WM_STATE_MODAL)) {
3615             modal = value;
3616         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT)) {
3617             max_vert = value;
3618         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ)) {
3619             max_horz = value;
3620         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_SHADED)) {
3621             shaded = value;
3622         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR)) {
3623             self->skip_taskbar = value;
3624         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER)) {
3625             self->skip_pager = value;
3626         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_HIDDEN)) {
3627             iconic = value;
3628         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN)) {
3629             fullscreen = value;
3630         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_ABOVE)) {
3631             above = value;
3632             /* only unset below when setting above, otherwise you can't get to
3633                the normal layer */
3634             if (value)
3635                 below = FALSE;
3636         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_BELOW)) {
3637             /* and vice versa */
3638             if (value)
3639                 above = FALSE;
3640             below = value;
3641         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION)){
3642             demands_attention = value;
3643         } else if (state == OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED)) {
3644             undecorated = value;
3645         } else if (state == OBT_PROP_ATOM(OB_WM_STATE_LOCKED)) {
3646             locked = value;
3647         }
3648     }
3649
3650     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3651         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3652             /* toggling both */
3653             if (max_horz == max_vert) { /* both going the same way */
3654                 client_maximize(self, max_horz, 0);
3655             } else {
3656                 client_maximize(self, max_horz, 1);
3657                 client_maximize(self, max_vert, 2);
3658             }
3659         } else {
3660             /* toggling one */
3661             if (max_horz != self->max_horz)
3662                 client_maximize(self, max_horz, 1);
3663             else
3664                 client_maximize(self, max_vert, 2);
3665         }
3666     }
3667     /* change fullscreen state before shading, as it will affect if the window
3668        can shade or not */
3669     if (fullscreen != self->fullscreen)
3670         client_fullscreen(self, fullscreen);
3671     if (shaded != self->shaded)
3672         client_shade(self, shaded);
3673     if (undecorated != self->undecorated)
3674         client_set_undecorated(self, undecorated);
3675     if (locked != self->locked)
3676         client_set_locked(self, locked);
3677     if (above != self->above || below != self->below) {
3678         self->above = above;
3679         self->below = below;
3680         client_calc_layer(self);
3681     }
3682
3683     if (modal != self->modal) {
3684         self->modal = modal;
3685         /* when a window changes modality, then its stacking order with its
3686            transients needs to change */
3687         stacking_raise(CLIENT_AS_WINDOW(self));
3688
3689         /* it also may get focused. if something is focused that shouldn't
3690            be focused anymore, then move the focus */
3691         if (focus_client && client_focus_target(focus_client) != focus_client)
3692             client_focus(focus_client);
3693     }
3694
3695     if (iconic != self->iconic)
3696         client_iconify(self, iconic, FALSE, FALSE);
3697
3698     if (demands_attention != self->demands_attention)
3699         client_hilite(self, demands_attention);
3700
3701     client_change_state(self); /* change the hint to reflect these changes */
3702 }
3703
3704 ObClient *client_focus_target(ObClient *self)
3705 {
3706     ObClient *child = NULL;
3707
3708     child = client_search_modal_child(self);
3709     if (child) return child;
3710     return self;
3711 }
3712
3713 gboolean client_can_focus(ObClient *self)
3714 {
3715     /* choose the correct target */
3716     self = client_focus_target(self);
3717
3718     if (!self->frame->visible)
3719         return FALSE;
3720
3721     if (!(self->can_focus || self->focus_notify))
3722         return FALSE;
3723
3724     return TRUE;
3725 }
3726
3727 gboolean client_focus(ObClient *self)
3728 {
3729     {
3730         XkbStateRec state;
3731         XkbGetState(obt_display, XkbUseCoreKbd, &state);
3732         if (state.locked_mods & 128)
3733             return FALSE;
3734     }
3735
3736     /* we might not focus this window, so if we have modal children which would
3737        be focused instead, bring them to this desktop */
3738     client_bring_modal_windows(self);
3739
3740     /* choose the correct target */
3741     self = client_focus_target(self);
3742
3743     if (!client_can_focus(self)) {
3744         ob_debug_type(OB_DEBUG_FOCUS,
3745                       "Client %s can't be focused", self->title);
3746         return FALSE;
3747     }
3748
3749     ob_debug_type(OB_DEBUG_FOCUS,
3750                   "Focusing client \"%s\" (0x%x) at time %u",
3751                   self->title, self->window, event_curtime);
3752
3753     /* if using focus_delay, stop the timer now so that focus doesn't
3754        go moving on us */
3755     event_halt_focus_delay();
3756
3757     event_cancel_all_key_grabs();
3758
3759     obt_display_ignore_errors(TRUE);
3760
3761     if (self->can_focus) {
3762         /* This can cause a BadMatch error with CurrentTime, or if an app
3763            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3764         XSetInputFocus(obt_display, self->window, RevertToPointerRoot,
3765                        event_curtime);
3766     }
3767
3768     if (self->focus_notify) {
3769         XEvent ce;
3770         ce.xclient.type = ClientMessage;
3771         ce.xclient.message_type = OBT_PROP_ATOM(WM_PROTOCOLS);
3772         ce.xclient.display = obt_display;
3773         ce.xclient.window = self->window;
3774         ce.xclient.format = 32;
3775         ce.xclient.data.l[0] = OBT_PROP_ATOM(WM_TAKE_FOCUS);
3776         ce.xclient.data.l[1] = event_curtime;
3777         ce.xclient.data.l[2] = 0l;
3778         ce.xclient.data.l[3] = 0l;
3779         ce.xclient.data.l[4] = 0l;
3780         XSendEvent(obt_display, self->window, FALSE, NoEventMask, &ce);
3781     }
3782
3783     obt_display_ignore_errors(FALSE);
3784
3785     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d",
3786                   obt_display_error_occured);
3787     return !obt_display_error_occured;
3788 }
3789
3790 static void client_present(ObClient *self, gboolean here, gboolean raise,
3791                            gboolean unshade)
3792 {
3793     if (client_normal(self) && screen_showing_desktop)
3794         screen_show_desktop(FALSE, self);
3795     if (self->iconic)
3796         client_iconify(self, FALSE, here, FALSE);
3797     if (self->desktop != DESKTOP_ALL &&
3798         self->desktop != screen_desktop)
3799     {
3800         if (here)
3801             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3802         else
3803             screen_set_desktop(self->desktop, FALSE);
3804     } else if (!self->frame->visible)
3805         /* if its not visible for other reasons, then don't mess
3806            with it */
3807         return;
3808     if (self->shaded && unshade)
3809         client_shade(self, FALSE);
3810     if (raise)
3811         stacking_raise(CLIENT_AS_WINDOW(self));
3812
3813     client_focus(self);
3814 }
3815
3816 /* this function exists to map to the client_activate message in the ewmh,
3817    the user arg is unused because nobody uses it correctly anyway. */
3818 void client_activate(ObClient *self, gboolean here, gboolean raise,
3819                      gboolean unshade, gboolean user)
3820 {
3821     client_present(self, here, raise, unshade);
3822 }
3823
3824 static void client_bring_windows_recursive(ObClient *self,
3825                                            guint desktop,
3826                                            gboolean helpers,
3827                                            gboolean modals,
3828                                            gboolean iconic)
3829 {
3830     GSList *it;
3831
3832     for (it = self->transients; it; it = g_slist_next(it))
3833         client_bring_windows_recursive(it->data, desktop,
3834                                        helpers, modals, iconic);
3835
3836     if (((helpers && client_helper(self)) ||
3837          (modals && self->modal)) &&
3838         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3839          (iconic && self->iconic)))
3840     {
3841         if (iconic && self->iconic)
3842             client_iconify(self, FALSE, TRUE, FALSE);
3843         else
3844             client_set_desktop(self, desktop, FALSE, FALSE);
3845     }
3846 }
3847
3848 void client_bring_helper_windows(ObClient *self)
3849 {
3850     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3851 }
3852
3853 void client_bring_modal_windows(ObClient *self)
3854 {
3855     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3856 }
3857
3858 gboolean client_focused(ObClient *self)
3859 {
3860     return self == focus_client;
3861 }
3862
3863 RrImage* client_icon(ObClient *self)
3864 {
3865     RrImage *ret = NULL;
3866
3867     if (self->icon_set)
3868         ret = self->icon_set;
3869     else if (self->parents) {
3870         GSList *it;
3871         for (it = self->parents; it && !ret; it = g_slist_next(it))
3872             ret = client_icon(it->data);
3873     }
3874     if (!ret)
3875         ret = client_default_icon;
3876     return ret;
3877 }
3878
3879 void client_set_layer(ObClient *self, gint layer)
3880 {
3881     if (layer < 0) {
3882         self->below = TRUE;
3883         self->above = FALSE;
3884     } else if (layer == 0) {
3885         self->below = self->above = FALSE;
3886     } else {
3887         self->below = FALSE;
3888         self->above = TRUE;
3889     }
3890     client_calc_layer(self);
3891     client_change_state(self); /* reflect this in the state hints */
3892 }
3893
3894 void client_set_locked(ObClient *self, gboolean locked)
3895 {
3896     if (self->locked != locked) {
3897         self->locked = locked;
3898         client_change_state(self);
3899     }
3900 }
3901
3902 void client_set_undecorated(ObClient *self, gboolean undecorated)
3903 {
3904     if (self->undecorated != undecorated &&
3905         /* don't let it undecorate if the function is missing, but let
3906            it redecorate */
3907         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3908     {
3909         self->undecorated = undecorated;
3910         client_setup_decor_and_functions(self, TRUE);
3911         client_change_state(self); /* reflect this in the state hints */
3912
3913         hooks_queue((undecorated ?
3914                      OB_HOOK_WIN_UNDECORATED : OB_HOOK_WIN_DECORATED), self);
3915     }
3916 }
3917
3918 guint client_monitor(ObClient *self)
3919 {
3920     return screen_find_monitor(&self->frame->area);
3921 }
3922
3923 ObClient *client_direct_parent(ObClient *self)
3924 {
3925     if (!self->parents) return NULL;
3926     if (self->transient_for_group) return NULL;
3927     return self->parents->data;
3928 }
3929
3930 ObClient *client_search_top_direct_parent(ObClient *self)
3931 {
3932     ObClient *p;
3933     while ((p = client_direct_parent(self))) self = p;
3934     return self;
3935 }
3936
3937 static GSList *client_search_all_top_parents_internal(ObClient *self,
3938                                                       gboolean bylayer,
3939                                                       ObStackingLayer layer)
3940 {
3941     GSList *ret;
3942     ObClient *p;
3943
3944     /* move up the direct transient chain as far as possible */
3945     while ((p = client_direct_parent(self)) &&
3946            (!bylayer || p->layer == layer))
3947         self = p;
3948
3949     if (!self->parents)
3950         ret = g_slist_prepend(NULL, self);
3951     else
3952         ret = g_slist_copy(self->parents);
3953
3954     return ret;
3955 }
3956
3957 GSList *client_search_all_top_parents(ObClient *self)
3958 {
3959     return client_search_all_top_parents_internal(self, FALSE, 0);
3960 }
3961
3962 GSList *client_search_all_top_parents_layer(ObClient *self)
3963 {
3964     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3965 }
3966
3967 ObClient *client_search_focus_parent(ObClient *self)
3968 {
3969     GSList *it;
3970
3971     for (it = self->parents; it; it = g_slist_next(it))
3972         if (client_focused(it->data)) return it->data;
3973
3974     return NULL;
3975 }
3976
3977 ObClient *client_search_parent(ObClient *self, ObClient *search)
3978 {
3979     GSList *it;
3980
3981     for (it = self->parents; it; it = g_slist_next(it))
3982         if (it->data == search) return search;
3983
3984     return NULL;
3985 }
3986
3987 ObClient *client_search_transient(ObClient *self, ObClient *search)
3988 {
3989     GSList *sit;
3990
3991     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3992         if (sit->data == search)
3993             return search;
3994         if (client_search_transient(sit->data, search))
3995             return search;
3996     }
3997     return NULL;
3998 }
3999
4000 static void detect_edge(Rect area, ObDirection dir,
4001                         gint my_head, gint my_size,
4002                         gint my_edge_start, gint my_edge_size,
4003                         gint *dest, gboolean *near_edge)
4004 {
4005     gint edge_start, edge_size, head, tail;
4006     gboolean skip_head = FALSE, skip_tail = FALSE;
4007
4008     switch (dir) {
4009         case OB_DIRECTION_NORTH:
4010         case OB_DIRECTION_SOUTH:
4011             edge_start = area.x;
4012             edge_size = area.width;
4013             break;
4014         case OB_DIRECTION_EAST:
4015         case OB_DIRECTION_WEST:
4016             edge_start = area.y;
4017             edge_size = area.height;
4018             break;
4019         default:
4020             g_assert_not_reached();
4021     }
4022
4023     /* do we collide with this window? */
4024     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
4025                 edge_start, edge_size))
4026         return;
4027
4028     switch (dir) {
4029         case OB_DIRECTION_NORTH:
4030             head = RECT_BOTTOM(area);
4031             tail = RECT_TOP(area);
4032             break;
4033         case OB_DIRECTION_SOUTH:
4034             head = RECT_TOP(area);
4035             tail = RECT_BOTTOM(area);
4036             break;
4037         case OB_DIRECTION_WEST:
4038             head = RECT_RIGHT(area);
4039             tail = RECT_LEFT(area);
4040             break;
4041         case OB_DIRECTION_EAST:
4042             head = RECT_LEFT(area);
4043             tail = RECT_RIGHT(area);
4044             break;
4045         default:
4046             g_assert_not_reached();
4047     }
4048     switch (dir) {
4049         case OB_DIRECTION_NORTH:
4050         case OB_DIRECTION_WEST:
4051             /* check if our window is past the head of this window */
4052             if (my_head <= head + 1)
4053                 skip_head = TRUE;
4054             /* check if our window's tail is past the tail of this window */
4055             if (my_head + my_size - 1 <= tail)
4056                 skip_tail = TRUE;
4057             /* check if the head of this window is closer than the previously
4058                chosen edge (take into account that the previously chosen
4059                edge might have been a tail, not a head) */
4060             if (head + (*near_edge ? 0 : my_size) <= *dest)
4061                 skip_head = TRUE;
4062             /* check if the tail of this window is closer than the previously
4063                chosen edge (take into account that the previously chosen
4064                edge might have been a head, not a tail) */
4065             if (tail - (!*near_edge ? 0 : my_size) <= *dest)
4066                 skip_tail = TRUE;
4067             break;
4068         case OB_DIRECTION_SOUTH:
4069         case OB_DIRECTION_EAST:
4070             /* check if our window is past the head of this window */
4071             if (my_head >= head - 1)
4072                 skip_head = TRUE;
4073             /* check if our window's tail is past the tail of this window */
4074             if (my_head - my_size + 1 >= tail)
4075                 skip_tail = TRUE;
4076             /* check if the head of this window is closer than the previously
4077                chosen edge (take into account that the previously chosen
4078                edge might have been a tail, not a head) */
4079             if (head - (*near_edge ? 0 : my_size) >= *dest)
4080                 skip_head = TRUE;
4081             /* check if the tail of this window is closer than the previously
4082                chosen edge (take into account that the previously chosen
4083                edge might have been a head, not a tail) */
4084             if (tail + (!*near_edge ? 0 : my_size) >= *dest)
4085                 skip_tail = TRUE;
4086             break;
4087         default:
4088             g_assert_not_reached();
4089     }
4090
4091     ob_debug("my head %d size %d", my_head, my_size);
4092     ob_debug("head %d tail %d dest %d", head, tail, *dest);
4093     if (!skip_head) {
4094         ob_debug("using near edge %d", head);
4095         *dest = head;
4096         *near_edge = TRUE;
4097     }
4098     else if (!skip_tail) {
4099         ob_debug("using far edge %d", tail);
4100         *dest = tail;
4101         *near_edge = FALSE;
4102     }
4103 }
4104
4105 void client_find_edge_directional(ObClient *self, ObDirection dir,
4106                                   gint my_head, gint my_size,
4107                                   gint my_edge_start, gint my_edge_size,
4108                                   gint *dest, gboolean *near_edge)
4109 {
4110     GList *it;
4111     Rect *a, *mon;
4112     Rect dock_area;
4113     gint edge;
4114
4115     a = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS,
4116                     &self->frame->area);
4117     mon = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR,
4118                       &self->frame->area);
4119
4120     switch (dir) {
4121     case OB_DIRECTION_NORTH:
4122         if (my_head >= RECT_TOP(*mon) + 1)
4123             edge = RECT_TOP(*mon) - 1;
4124         else
4125             edge = RECT_TOP(*a) - 1;
4126         break;
4127     case OB_DIRECTION_SOUTH:
4128         if (my_head <= RECT_BOTTOM(*mon) - 1)
4129             edge = RECT_BOTTOM(*mon) + 1;
4130         else
4131             edge = RECT_BOTTOM(*a) + 1;
4132         break;
4133     case OB_DIRECTION_EAST:
4134         if (my_head <= RECT_RIGHT(*mon) - 1)
4135             edge = RECT_RIGHT(*mon) + 1;
4136         else
4137             edge = RECT_RIGHT(*a) + 1;
4138         break;
4139     case OB_DIRECTION_WEST:
4140         if (my_head >= RECT_LEFT(*mon) + 1)
4141             edge = RECT_LEFT(*mon) - 1;
4142         else
4143             edge = RECT_LEFT(*a) - 1;
4144         break;
4145     default:
4146         g_assert_not_reached();
4147     }
4148     /* default to the far edge, then narrow it down */
4149     *dest = edge;
4150     *near_edge = TRUE;
4151
4152     for (it = client_list; it; it = g_list_next(it)) {
4153         ObClient *cur = it->data;
4154
4155         /* skip windows to not bump into */
4156         if (cur == self)
4157             continue;
4158         if (cur->iconic)
4159             continue;
4160         if (self->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&
4161             cur->desktop != screen_desktop)
4162             continue;
4163
4164         ob_debug("trying window %s", cur->title);
4165
4166         detect_edge(cur->frame->area, dir, my_head, my_size, my_edge_start,
4167                     my_edge_size, dest, near_edge);
4168     }
4169     dock_get_area(&dock_area);
4170     detect_edge(dock_area, dir, my_head, my_size, my_edge_start,
4171                 my_edge_size, dest, near_edge);
4172     g_free(a);
4173     g_free(mon);
4174 }
4175
4176 void client_find_move_directional(ObClient *self, ObDirection dir,
4177                                   gint *x, gint *y)
4178 {
4179     gint head, size;
4180     gint e, e_start, e_size;
4181     gboolean near;
4182
4183     switch (dir) {
4184     case OB_DIRECTION_EAST:
4185         head = RECT_RIGHT(self->frame->area);
4186         size = self->frame->area.width;
4187         e_start = RECT_TOP(self->frame->area);
4188         e_size = self->frame->area.height;
4189         break;
4190     case OB_DIRECTION_WEST:
4191         head = RECT_LEFT(self->frame->area);
4192         size = self->frame->area.width;
4193         e_start = RECT_TOP(self->frame->area);
4194         e_size = self->frame->area.height;
4195         break;
4196     case OB_DIRECTION_NORTH:
4197         head = RECT_TOP(self->frame->area);
4198         size = self->frame->area.height;
4199         e_start = RECT_LEFT(self->frame->area);
4200         e_size = self->frame->area.width;
4201         break;
4202     case OB_DIRECTION_SOUTH:
4203         head = RECT_BOTTOM(self->frame->area);
4204         size = self->frame->area.height;
4205         e_start = RECT_LEFT(self->frame->area);
4206         e_size = self->frame->area.width;
4207         break;
4208     default:
4209         g_assert_not_reached();
4210     }
4211
4212     client_find_edge_directional(self, dir, head, size,
4213                                  e_start, e_size, &e, &near);
4214     *x = self->frame->area.x;
4215     *y = self->frame->area.y;
4216     switch (dir) {
4217     case OB_DIRECTION_EAST:
4218         if (near) e -= self->frame->area.width;
4219         else      e++;
4220         *x = e;
4221         break;
4222     case OB_DIRECTION_WEST:
4223         if (near) e++;
4224         else      e -= self->frame->area.width;
4225         *x = e;
4226         break;
4227     case OB_DIRECTION_NORTH:
4228         if (near) e++;
4229         else      e -= self->frame->area.height;
4230         *y = e;
4231         break;
4232     case OB_DIRECTION_SOUTH:
4233         if (near) e -= self->frame->area.height;
4234         else      e++;
4235         *y = e;
4236         break;
4237     default:
4238         g_assert_not_reached();
4239     }
4240     frame_frame_gravity(self->frame, x, y);
4241 }
4242
4243 void client_find_resize_directional(ObClient *self, ObDirection side,
4244                                     gboolean grow,
4245                                     gint *x, gint *y, gint *w, gint *h)
4246 {
4247     gint head;
4248     gint e, e_start, e_size, delta;
4249     gboolean near;
4250     ObDirection dir;
4251
4252     switch (side) {
4253     case OB_DIRECTION_EAST:
4254         head = RECT_RIGHT(self->frame->area) +
4255             (self->size_inc.width - 1) * (grow ? 1 : 0);
4256         e_start = RECT_TOP(self->frame->area);
4257         e_size = self->frame->area.height;
4258         dir = grow ? OB_DIRECTION_EAST : OB_DIRECTION_WEST;
4259         break;
4260     case OB_DIRECTION_WEST:
4261         head = RECT_LEFT(self->frame->area) -
4262             (self->size_inc.width - 1) * (grow ? 1 : 0);
4263         e_start = RECT_TOP(self->frame->area);
4264         e_size = self->frame->area.height;
4265         dir = grow ? OB_DIRECTION_WEST : OB_DIRECTION_EAST;
4266         break;
4267     case OB_DIRECTION_NORTH:
4268         head = RECT_TOP(self->frame->area) -
4269             (self->size_inc.height - 1) * (grow ? 1 : 0);
4270         e_start = RECT_LEFT(self->frame->area);
4271         e_size = self->frame->area.width;
4272         dir = grow ? OB_DIRECTION_NORTH : OB_DIRECTION_SOUTH;
4273         break;
4274     case OB_DIRECTION_SOUTH:
4275         head = RECT_BOTTOM(self->frame->area) +
4276             (self->size_inc.height - 1) * (grow ? 1 : 0);
4277         e_start = RECT_LEFT(self->frame->area);
4278         e_size = self->frame->area.width;
4279         dir = grow ? OB_DIRECTION_SOUTH : OB_DIRECTION_NORTH;
4280         break;
4281     default:
4282         g_assert_not_reached();
4283     }
4284
4285     ob_debug("head %d dir %d", head, dir);
4286     client_find_edge_directional(self, dir, head, 1,
4287                                  e_start, e_size, &e, &near);
4288     ob_debug("edge %d", e);
4289     *x = self->frame->area.x;
4290     *y = self->frame->area.y;
4291     *w = self->frame->area.width;
4292     *h = self->frame->area.height;
4293     switch (side) {
4294     case OB_DIRECTION_EAST:
4295         if (grow == near) --e;
4296         delta = e - RECT_RIGHT(self->frame->area);
4297         *w += delta;
4298         break;
4299     case OB_DIRECTION_WEST:
4300         if (grow == near) ++e;
4301         delta = RECT_LEFT(self->frame->area) - e;
4302         *x -= delta;
4303         *w += delta;
4304         break;
4305     case OB_DIRECTION_NORTH:
4306         if (grow == near) ++e;
4307         delta = RECT_TOP(self->frame->area) - e;
4308         *y -= delta;
4309         *h += delta;
4310         break;
4311     case OB_DIRECTION_SOUTH:
4312         if (grow == near) --e;
4313         delta = e - RECT_BOTTOM(self->frame->area);
4314         *h += delta;
4315         break;
4316     default:
4317         g_assert_not_reached();
4318     }
4319     frame_frame_gravity(self->frame, x, y);
4320     *w -= self->frame->size.left + self->frame->size.right;
4321     *h -= self->frame->size.top + self->frame->size.bottom;
4322 }
4323
4324 ObClient* client_under_pointer(void)
4325 {
4326     gint x, y;
4327     GList *it;
4328     ObClient *ret = NULL;
4329
4330     if (screen_pointer_pos(&x, &y)) {
4331         for (it = stacking_list; it; it = g_list_next(it)) {
4332             if (WINDOW_IS_CLIENT(it->data)) {
4333                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4334                 if (c->frame->visible &&
4335                     /* check the desktop, this is done during desktop
4336                        switching and windows are shown/hidden status is not
4337                        reliable */
4338                     (c->desktop == screen_desktop ||
4339                      c->desktop == DESKTOP_ALL) &&
4340                     /* ignore all animating windows */
4341                     !frame_iconify_animating(c->frame) &&
4342                     RECT_CONTAINS(c->frame->area, x, y))
4343                 {
4344                     ret = c;
4345                     break;
4346                 }
4347             }
4348         }
4349     }
4350     return ret;
4351 }
4352
4353 gboolean client_has_group_siblings(ObClient *self)
4354 {
4355     return self->group && self->group->members->next;
4356 }
4357
4358 /*! Returns TRUE if the client is running on the same machine as Openbox */
4359 gboolean client_on_localhost(ObClient *self)
4360 {
4361     return self->client_machine == NULL;
4362 }