openbox/client.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    client.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "client.h"
  21 #include "debug.h"
  22 #include "startupnotify.h"
  23 #include "dock.h"
  24 #include "xerror.h"
  25 #include "screen.h"
  26 #include "moveresize.h"
  27 #include "ping.h"
  28 #include "place.h"
  29 #include "prop.h"
  30 #include "extensions.h"
  31 #include "frame.h"
  32 #include "session.h"
  33 #include "event.h"
  34 #include "grab.h"
  35 #include "focus.h"
  36 #include "stacking.h"
  37 #include "openbox.h"
  38 #include "group.h"
  39 #include "config.h"
  40 #include "menuframe.h"
  41 #include "keyboard.h"
  42 #include "mouse.h"
  43 #include "render/render.h"
  44 #include "gettext.h"
  45
  46 #ifdef HAVE_UNISTD_H
  47 #  include <unistd.h>
  48 #endif
  49
  50 #ifdef HAVE_SIGNAL_H
  51 #  include <signal.h> /* for kill() */
  52 #endif
  53
  54 #include <glib.h>
  55 #include <X11/Xutil.h>
  56
  57 /*! The event mask to grab on client windows */
  58 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  59                           ColormapChangeMask)
  60
  61 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  62                                 ButtonMotionMask)
  63
  64 typedef struct
  65 {
  66     ObClientCallback func;
  67     gpointer data;
  68 } ClientCallback;
  69
  70 GList            *client_list          = NULL;
  71
  72 static GSList *client_destroy_notifies = NULL;
  73
  74 static void client_get_all(ObClient *self, gboolean real);
  75 static void client_get_startup_id(ObClient *self);
  76 static void client_get_session_ids(ObClient *self);
  77 static void client_get_area(ObClient *self);
  78 static void client_get_desktop(ObClient *self);
  79 static void client_get_state(ObClient *self);
  80 static void client_get_shaped(ObClient *self);
  81 static void client_get_mwm_hints(ObClient *self);
  82 static void client_get_colormap(ObClient *self);
  83 static void client_set_desktop_recursive(ObClient *self,
  84                                          guint target,
  85                                          gboolean donthide,
  86                                          gboolean dontraise);
  87 static void client_change_allowed_actions(ObClient *self);
  88 static void client_change_state(ObClient *self);
  89 static void client_change_wm_state(ObClient *self);
  90 static void client_apply_startup_state(ObClient *self,
  91                                        gint x, gint y, gint w, gint h);
  92 static void client_restore_session_state(ObClient *self);
  93 static gboolean client_restore_session_stacking(ObClient *self);
  94 static ObAppSettings *client_get_settings_state(ObClient *self);
  95 static void client_update_transient_tree(ObClient *self,
  96                                          ObGroup *oldgroup, ObGroup *newgroup,
  97                                          gboolean oldgtran, gboolean newgtran,
  98                                          ObClient* oldparent,
  99                                          ObClient *newparent);
 100 static void client_present(ObClient *self, gboolean here, gboolean raise,
 101                            gboolean unshade);
 102 static GSList *client_search_all_top_parents_internal(ObClient *self,
 103                                                       gboolean bylayer,
 104                                                       ObStackingLayer layer);
 105 static void client_call_notifies(ObClient *self, GSList *list);
 106 static void client_ping_event(ObClient *self, gboolean dead);
 107
 108
 109 void client_startup(gboolean reconfig)
 110 {
 111     if (reconfig) return;
 112
 113     client_set_list();
 114 }
 115
 116 void client_shutdown(gboolean reconfig)
 117 {
 118     if (reconfig) return;
 119 }
 120
 121 static void client_call_notifies(ObClient *self, GSList *list)
 122 {
 123     GSList *it;
 124
 125     for (it = list; it; it = g_slist_next(it)) {
 126         ClientCallback *d = it->data;
 127         d->func(self, d->data);
 128     }
 129 }
 130
 131 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 132 {
 133     ClientCallback *d = g_new(ClientCallback, 1);
 134     d->func = func;
 135     d->data = data;
 136     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 137 }
 138
 139 void client_remove_destroy_notify(ObClientCallback func)
 140 {
 141     GSList *it;
 142
 143     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 144         ClientCallback *d = it->data;
 145         if (d->func == func) {
 146             g_free(d);
 147             client_destroy_notifies =
 148                 g_slist_delete_link(client_destroy_notifies, it);
 149             break;
 150         }
 151     }
 152 }
 153
 154 void client_set_list(void)
 155 {
 156     Window *windows, *win_it;
 157     GList *it;
 158     guint size = g_list_length(client_list);
 159
 160     /* create an array of the window ids */
 161     if (size > 0) {
 162         windows = g_new(Window, size);
 163         win_it = windows;
 164         for (it = client_list; it; it = g_list_next(it), ++win_it)
 165             *win_it = ((ObClient*)it->data)->window;
 166     } else
 167         windows = NULL;
 168
 169     PROP_SETA32(RootWindow(ob_display, ob_screen),
 170                 net_client_list, window, (gulong*)windows, size);
 171
 172     if (windows)
 173         g_free(windows);
 174
 175     stacking_set_list();
 176 }
 177
 178 void client_manage_all(void)
 179 {
 180     guint i, j, nchild;
 181     Window w, *children;
 182     XWMHints *wmhints;
 183     XWindowAttributes attrib;
 184
 185     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 186                &w, &w, &children, &nchild);
 187
 188     /* remove all icon windows from the list */
 189     for (i = 0; i < nchild; i++) {
 190         if (children[i] == None) continue;
 191         wmhints = XGetWMHints(ob_display, children[i]);
 192         if (wmhints) {
 193             if ((wmhints->flags & IconWindowHint) &&
 194                 (wmhints->icon_window != children[i]))
 195                 for (j = 0; j < nchild; j++)
 196                     if (children[j] == wmhints->icon_window) {
 197                         children[j] = None;
 198                         break;
 199                     }
 200             XFree(wmhints);
 201         }
 202     }
 203
 204     for (i = 0; i < nchild; ++i) {
 205         if (children[i] == None)
 206             continue;
 207         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 208             if (attrib.override_redirect) continue;
 209
 210             if (attrib.map_state != IsUnmapped)
 211                 client_manage(children[i]);
 212         }
 213     }
 214     XFree(children);
 215 }
 216
 217 void client_manage(Window window)
 218 {
 219     ObClient *self;
 220     XEvent e;
 221     XWindowAttributes attrib;
 222     XSetWindowAttributes attrib_set;
 223     XWMHints *wmhint;
 224     gboolean activate = FALSE;
 225     ObAppSettings *settings;
 226     gboolean transient = FALSE;
 227     Rect place, *monitor;
 228     Time launch_time, map_time;
 229
 230     grab_server(TRUE);
 231
 232     /* check if it has already been unmapped by the time we started
 233        mapping. the grab does a sync so we don't have to here */
 234     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 235         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 236     {
 237         XPutBackEvent(ob_display, &e);
 238
 239         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 240         grab_server(FALSE);
 241         return; /* don't manage it */
 242     }
 243
 244     /* make sure it isn't an override-redirect window */
 245     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 246         attrib.override_redirect)
 247     {
 248         grab_server(FALSE);
 249         return; /* don't manage it */
 250     }
 251
 252     /* is the window a docking app */
 253     if ((wmhint = XGetWMHints(ob_display, window))) {
 254         if ((wmhint->flags & StateHint) &&
 255             wmhint->initial_state == WithdrawnState)
 256         {
 257             dock_add(window, wmhint);
 258             grab_server(FALSE);
 259             XFree(wmhint);
 260             return;
 261         }
 262         XFree(wmhint);
 263     }
 264
 265     ob_debug("Managing window: 0x%lx\n", window);
 266
 267     map_time = event_get_server_time();
 268
 269     /* choose the events we want to receive on the CLIENT window */
 270     attrib_set.event_mask = CLIENT_EVENTMASK;
 271     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 272     XChangeWindowAttributes(ob_display, window,
 273                             CWEventMask|CWDontPropagate, &attrib_set);
 274
 275     /* create the ObClient struct, and populate it from the hints on the
 276        window */
 277     self = g_new0(ObClient, 1);
 278     self->obwin.type = Window_Client;
 279     self->window = window;
 280
 281     /* non-zero defaults */
 282     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 283     self->gravity = NorthWestGravity;
 284     self->desktop = screen_num_desktops; /* always an invalid value */
 285
 286     /* get all the stuff off the window */
 287     client_get_all(self, TRUE);
 288
 289     ob_debug("Window type: %d\n", self->type);
 290     ob_debug("Window group: 0x%x\n", self->group?self->group->leader:0);
 291
 292     /* specify that if we exit, the window should not be destroyed and
 293        should be reparented back to root automatically */
 294     XChangeSaveSet(ob_display, window, SetModeInsert);
 295
 296     /* create the decoration frame for the client window */
 297     self->frame = frame_new(self);
 298
 299     frame_grab_client(self->frame);
 300
 301     /* we've grabbed everything and set everything that we need to at mapping
 302        time now */
 303     grab_server(FALSE);
 304
 305     /* per-app settings override stuff from client_get_all, and return the
 306        settings for other uses too. the returned settings is a shallow copy,
 307        that needs to be freed with g_free(). */
 308     settings = client_get_settings_state(self);
 309     /* the session should get the last say though */
 310     client_restore_session_state(self);
 311
 312     /* tell startup notification that this app started */
 313     launch_time = sn_app_started(self->startup_id, self->class, self->name);
 314
 315     /* do this after we have a frame.. it uses the frame to help determine the
 316        WM_STATE to apply. */
 317     client_change_state(self);
 318
 319     /* add ourselves to the focus order. do this before
 320        setup_decor_and_functions.  if the window is mapping in a state that is
 321        not allowed, then it will be adjusted, and that can change its position
 322        in the focus order (deiconify for example) */
 323     focus_order_add_new(self);
 324
 325     /* do this to add ourselves to the stacking list in a non-intrusive way */
 326     client_calc_layer(self);
 327
 328     /* now we have all of the window's information so we can set this up */
 329     client_setup_decor_and_functions(self, FALSE);
 330
 331     /* focus the new window? */
 332     if (ob_state() != OB_STATE_STARTING &&
 333         (!self->session || self->session->focused) &&
 334         /* this means focus=true for window is same as config_focus_new=true */
 335         ((config_focus_new || (settings && settings->focus == 1)) ||
 336          client_search_focus_tree_full(self)) &&
 337         /* this checks for focus=false for the window */
 338         (!settings || settings->focus != 0) &&
 339         focus_valid_target(self, FALSE, FALSE, TRUE, FALSE, FALSE))
 340     {
 341         activate = TRUE;
 342     }
 343
 344     /* remove the client's border */
 345     XSetWindowBorderWidth(ob_display, self->window, 0);
 346
 347     /* adjust the frame to the client's size before showing or placing
 348        the window */
 349     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 350     frame_adjust_client_area(self->frame);
 351
 352     /* where the frame was placed is where the window was originally */
 353     place = self->area;
 354     monitor = screen_physical_area_monitor(screen_find_monitor(&place));
 355
 356     /* figure out placement for the window if the window is new */
 357     if (ob_state() == OB_STATE_RUNNING) {
 358         ob_debug("Positioned: %s @ %d %d\n",
 359                  (!self->positioned ? "no" :
 360                   (self->positioned == PPosition ? "program specified" :
 361                    (self->positioned == USPosition ? "user specified" :
 362                     (self->positioned == (PPosition | USPosition) ?
 363                      "program + user specified" :
 364                      "BADNESS !?")))), place.x, place.y);
 365
 366         ob_debug("Sized: %s @ %d %d\n",
 367                  (!self->sized ? "no" :
 368                   (self->sized == PSize ? "program specified" :
 369                    (self->sized == USSize ? "user specified" :
 370                     (self->sized == (PSize | USSize) ?
 371                      "program + user specified" :
 372                      "BADNESS !?")))), place.width, place.height);
 373
 374         /* splash screens are also returned as TRUE for transient,
 375            and so will be forced on screen below */
 376         transient = place_client(self, &place.x, &place.y, settings);
 377
 378         /* make sure the window is visible. */
 379         client_find_onscreen(self, &place.x, &place.y,
 380                              place.width, place.height,
 381                              /* non-normal clients has less rules, and
 382                                 windows that are being restored from a
 383                                 session do also. we can assume you want
 384                                 it back where you saved it. Clients saying
 385                                 they placed themselves are subjected to
 386                                 harder rules, ones that are placed by
 387                                 place.c or by the user are allowed partially
 388                                 off-screen and on xinerama divides (ie,
 389                                 it is up to the placement routines to avoid
 390                                 the xinerama divides)
 391
 392                                 splash screens get "transient" set to TRUE by
 393                                 the place_client call
 394                              */
 395                              ob_state() == OB_STATE_RUNNING &&
 396                              (transient ||
 397                               (!((self->positioned & USPosition) ||
 398                                  (settings && settings->pos_given)) &&
 399                                client_normal(self) &&
 400                                !self->session &&
 401                                /* don't move oldschool fullscreen windows to
 402                                   fit inside the struts (fixes Acroread, which
 403                                   makes its fullscreen window fit the screen
 404                                   but it is not USSize'd or USPosition'd) */
 405                                !(self->decorations == 0 &&
 406                                  RECT_EQUAL(place, *monitor)))));
 407     }
 408
 409     /* if the window isn't user-sized, then make it fit inside
 410        the visible screen area on its monitor. Use basically the same rules
 411        for forcing the window on screen in the client_find_onscreen call.
 412
 413        do this after place_client, it chooses the monitor!
 414
 415        splash screens get "transient" set to TRUE by
 416        the place_client call
 417     */
 418     if (ob_state() == OB_STATE_RUNNING &&
 419         (transient ||
 420          (!(self->sized & USSize || self->positioned & USPosition) &&
 421           client_normal(self) &&
 422           !self->session &&
 423           /* don't shrink oldschool fullscreen windows to fit inside the
 424              struts (fixes Acroread, which makes its fullscreen window
 425              fit the screen but it is not USSize'd or USPosition'd) */
 426           !(self->decorations == 0 && RECT_EQUAL(place, *monitor)))))
 427     {
 428         Rect *a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &place);
 429
 430         /* get the size of the frame */
 431         place.width += self->frame->size.left + self->frame->size.right;
 432         place.height += self->frame->size.top + self->frame->size.bottom;
 433
 434         /* fit the window inside the area */
 435         place.width = MIN(place.width, a->width);
 436         place.height = MIN(place.height, a->height);
 437
 438         ob_debug("setting window size to %dx%d\n", place.width, place.height);
 439
 440         /* get the size of the client back */
 441         place.width -= self->frame->size.left + self->frame->size.right;
 442         place.height -= self->frame->size.top + self->frame->size.bottom;
 443
 444         g_free(a);
 445     }
 446
 447     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 448              "some restrictions may apply\n",
 449              self->window, place.x, place.y, place.width, place.height);
 450     if (self->session)
 451         ob_debug("  but session requested %d, %d  %d x %d instead, "
 452                  "overriding\n",
 453                  self->session->x, self->session->y,
 454                  self->session->w, self->session->h);
 455
 456     /* do this after the window is placed, so the premax/prefullscreen numbers
 457        won't be all wacko!!
 458
 459        this also places the window
 460     */
 461     client_apply_startup_state(self, place.x, place.y,
 462                                place.width, place.height);
 463
 464     g_free(monitor);
 465     monitor = NULL;
 466
 467     ob_debug_type(OB_DEBUG_FOCUS, "Going to try activate new window? %s\n",
 468                   activate ? "yes" : "no");
 469     if (activate) {
 470         gboolean raise = FALSE;
 471
 472         /* This is focus stealing prevention */
 473         ob_debug_type(OB_DEBUG_FOCUS,
 474                       "Want to focus new window 0x%x at time %u "
 475                       "launched at %u (last user interaction time %u)\n",
 476                       self->window, map_time, launch_time,
 477                       event_last_user_time);
 478
 479         if (menu_frame_visible || moveresize_in_progress) {
 480             activate = FALSE;
 481             raise = TRUE;
 482             ob_debug_type(OB_DEBUG_FOCUS,
 483                           "Not focusing the window because the user is inside "
 484                           "an Openbox menu or is move/resizing a window and "
 485                           "we don't want to interrupt them\n");
 486         }
 487
 488         /* if it's on another desktop */
 489         else if (!(self->desktop == screen_desktop ||
 490                    self->desktop == DESKTOP_ALL) &&
 491                  /* the timestamp is from before you changed desktops */
 492                  launch_time && screen_desktop_user_time &&
 493                  !event_time_after(launch_time, screen_desktop_user_time))
 494         {
 495             activate = FALSE;
 496             raise = TRUE;
 497             ob_debug_type(OB_DEBUG_FOCUS,
 498                           "Not focusing the window because its on another "
 499                           "desktop\n");
 500         }
 501         /* If something is focused, and it's not our relative... */
 502         else if (focus_client && client_search_focus_tree_full(self) == NULL &&
 503                  client_search_focus_group_full(self) == NULL)
 504         {
 505             /* If the user is working in another window right now, then don't
 506                steal focus */
 507             if (event_last_user_time && launch_time &&
 508                 event_time_after(event_last_user_time, launch_time) &&
 509                 event_last_user_time != launch_time &&
 510                 event_time_after(event_last_user_time,
 511                                  map_time - OB_EVENT_USER_TIME_DELAY))
 512             {
 513                 activate = FALSE;
 514                 ob_debug_type(OB_DEBUG_FOCUS,
 515                               "Not focusing the window because the user is "
 516                               "working in another window\n");
 517             }
 518             /* If its a transient (and its parents aren't focused) */
 519             else if (client_has_parent(self)) {
 520                 activate = FALSE;
 521                 ob_debug_type(OB_DEBUG_FOCUS,
 522                               "Not focusing the window because it is a "
 523                               "transient, and its relatives aren't focused\n");
 524             }
 525             /* Don't steal focus from globally active clients.
 526                I stole this idea from KWin. It seems nice.
 527              */
 528             else if (!(focus_client->can_focus ||
 529                        focus_client->focus_notify))
 530             {
 531                 activate = FALSE;
 532                 ob_debug_type(OB_DEBUG_FOCUS,
 533                               "Not focusing the window because a globally "
 534                               "active client has focus\n");
 535             }
 536             /* Don't move focus if it's not going to go to this window
 537                anyway */
 538             else if (client_focus_target(self) != self) {
 539                 activate = FALSE;
 540                 raise = TRUE;
 541                 ob_debug_type(OB_DEBUG_FOCUS,
 542                               "Not focusing the window because another window "
 543                               "would get the focus anyway\n");
 544             }
 545             else if (!(self->desktop == screen_desktop ||
 546                        self->desktop == DESKTOP_ALL))
 547             {
 548                 activate = FALSE;
 549                 raise = TRUE;
 550                 ob_debug_type(OB_DEBUG_FOCUS,
 551                               "Not focusing the window because it is on "
 552                               "another desktop and no relatives are focused ");
 553             }
 554         }
 555
 556         if (!activate) {
 557             ob_debug_type(OB_DEBUG_FOCUS,
 558                           "Focus stealing prevention activated for %s at "
 559                           "time %u (last user interactioon time %u)\n",
 560                           self->title, map_time, event_last_user_time);
 561             /* if the client isn't focused, then hilite it so the user
 562                knows it is there */
 563             client_hilite(self, TRUE);
 564             /* we may want to raise it even tho we're not activating it */
 565             if (raise && !client_restore_session_stacking(self))
 566                 stacking_raise(CLIENT_AS_WINDOW(self));
 567         }
 568     }
 569     else {
 570         /* This may look rather odd. Well it's because new windows are added
 571            to the stacking order non-intrusively. If we're not going to focus
 572            the new window or hilite it, then we raise it to the top. This will
 573            take affect for things that don't get focused like splash screens.
 574            Also if you don't have focus_new enabled, then it's going to get
 575            raised to the top. Legacy begets legacy I guess?
 576         */
 577         if (!client_restore_session_stacking(self))
 578             stacking_raise(CLIENT_AS_WINDOW(self));
 579     }
 580
 581     mouse_grab_for_client(self, TRUE);
 582
 583     /* this has to happen before we try focus the window, but we want it to
 584        happen after the client's stacking has been determined or it looks bad
 585     */
 586     {
 587         gulong ignore_start;
 588         if (!config_focus_under_mouse)
 589             ignore_start = event_start_ignore_all_enters();
 590
 591         client_show(self);
 592
 593         if (!config_focus_under_mouse)
 594             event_end_ignore_all_enters(ignore_start);
 595     }
 596
 597     if (activate) {
 598         gboolean stacked = client_restore_session_stacking(self);
 599         client_present(self, FALSE, !stacked, TRUE);
 600     }
 601
 602     /* add to client list/map */
 603     client_list = g_list_append(client_list, self);
 604     g_hash_table_insert(window_map, &self->window, self);
 605
 606     /* this has to happen after we're in the client_list */
 607     if (STRUT_EXISTS(self->strut))
 608         screen_update_areas();
 609
 610     /* update the list hints */
 611     client_set_list();
 612
 613     /* watch for when the application stops responding.  only do this for
 614        normal windows, i.e. windows which have titlebars and close buttons
 615        and things like that.
 616        we don't need to stop pinging on unmanage, because it will be handled
 617        automatically by the destroy callback!
 618     */
 619     if (self->ping && client_normal(self))
 620         ping_start(self, client_ping_event);
 621
 622     /* free the ObAppSettings shallow copy */
 623     g_free(settings);
 624
 625     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 626              window, self->frame->window, self->class);
 627
 628     return;
 629 }
 630
 631
 632 ObClient *client_fake_manage(Window window)
 633 {
 634     ObClient *self;
 635     ObAppSettings *settings;
 636
 637     ob_debug("Pretend-managing window: %lx\n", window);
 638
 639     /* do this minimal stuff to figure out the client's decorations */
 640
 641     self = g_new0(ObClient, 1);
 642     self->window = window;
 643
 644     client_get_all(self, FALSE);
 645     /* per-app settings override stuff, and return the settings for other
 646        uses too. this returns a shallow copy that needs to be freed */
 647     settings = client_get_settings_state(self);
 648
 649     client_setup_decor_and_functions(self, FALSE);
 650
 651     /* create the decoration frame for the client window and adjust its size */
 652     self->frame = frame_new(self);
 653     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 654
 655     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 656              self->frame->size.left, self->frame->size.right,
 657              self->frame->size.top, self->frame->size.bottom);
 658
 659     /* free the ObAppSettings shallow copy */
 660     g_free(settings);
 661
 662     return self;
 663 }
 664
 665 void client_unmanage_all(void)
 666 {
 667     while (client_list != NULL)
 668         client_unmanage(client_list->data);
 669 }
 670
 671 void client_unmanage(ObClient *self)
 672 {
 673     guint j;
 674     GSList *it;
 675     gulong ignore_start;
 676
 677     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 678              self->window, self->frame->window,
 679              self->class, self->title ? self->title : "");
 680
 681     g_assert(self != NULL);
 682
 683     /* we dont want events no more. do this before hiding the frame so we
 684        don't generate more events */
 685     XSelectInput(ob_display, self->window, NoEventMask);
 686
 687     /* ignore enter events from the unmap so it doesnt mess with the focus */
 688     if (!config_focus_under_mouse)
 689         ignore_start = event_start_ignore_all_enters();
 690
 691     frame_hide(self->frame);
 692     /* flush to send the hide to the server quickly */
 693     XFlush(ob_display);
 694
 695     if (!config_focus_under_mouse)
 696         event_end_ignore_all_enters(ignore_start);
 697
 698     mouse_grab_for_client(self, FALSE);
 699
 700     /* remove the window from our save set */
 701     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 702
 703     /* update the focus lists */
 704     focus_order_remove(self);
 705     if (client_focused(self)) {
 706         /* don't leave an invalid focus_client */
 707         focus_client = NULL;
 708     }
 709
 710     client_list = g_list_remove(client_list, self);
 711     stacking_remove(self);
 712     g_hash_table_remove(window_map, &self->window);
 713
 714     /* once the client is out of the list, update the struts to remove its
 715        influence */
 716     if (STRUT_EXISTS(self->strut))
 717         screen_update_areas();
 718
 719     client_call_notifies(self, client_destroy_notifies);
 720
 721     /* tell our parent(s) that we're gone */
 722     for (it = self->parents; it; it = g_slist_next(it))
 723         ((ObClient*)it->data)->transients =
 724             g_slist_remove(((ObClient*)it->data)->transients,self);
 725
 726     /* tell our transients that we're gone */
 727     for (it = self->transients; it; it = g_slist_next(it)) {
 728         ((ObClient*)it->data)->parents =
 729             g_slist_remove(((ObClient*)it->data)->parents, self);
 730         /* we could be keeping our children in a higher layer */
 731         client_calc_layer(it->data);
 732     }
 733
 734     /* remove from its group */
 735     if (self->group) {
 736         group_remove(self->group, self);
 737         self->group = NULL;
 738     }
 739
 740     /* restore the window's original geometry so it is not lost */
 741     {
 742         Rect a;
 743
 744         a = self->area;
 745
 746         if (self->fullscreen)
 747             a = self->pre_fullscreen_area;
 748         else if (self->max_horz || self->max_vert) {
 749             if (self->max_horz) {
 750                 a.x = self->pre_max_area.x;
 751                 a.width = self->pre_max_area.width;
 752             }
 753             if (self->max_vert) {
 754                 a.y = self->pre_max_area.y;
 755                 a.height = self->pre_max_area.height;
 756             }
 757         }
 758
 759         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 760         /* let it be moved and resized no matter what */
 761         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 762         self->decorations = 0; /* unmanaged windows have no decor */
 763
 764         /* give the client its border back */
 765         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 766
 767         client_move_resize(self, a.x, a.y, a.width, a.height);
 768     }
 769
 770     /* reparent the window out of the frame, and free the frame */
 771     frame_release_client(self->frame);
 772     frame_free(self->frame);
 773     self->frame = NULL;
 774
 775     if (ob_state() != OB_STATE_EXITING) {
 776         /* these values should not be persisted across a window
 777            unmapping/mapping */
 778         PROP_ERASE(self->window, net_wm_desktop);
 779         PROP_ERASE(self->window, net_wm_state);
 780         PROP_ERASE(self->window, wm_state);
 781     } else {
 782         /* if we're left in an unmapped state, the client wont be mapped.
 783            this is bad, since we will no longer be managing the window on
 784            restart */
 785         XMapWindow(ob_display, self->window);
 786     }
 787
 788     /* these should not be left on the window ever.  other window managers
 789        don't necessarily use them and it will mess them up (like compiz) */
 790     PROP_ERASE(self->window, net_wm_visible_name);
 791     PROP_ERASE(self->window, net_wm_visible_icon_name);
 792
 793     /* update the list hints */
 794     client_set_list();
 795
 796     ob_debug("Unmanaged window 0x%lx\n", self->window);
 797
 798     /* free all data allocated in the client struct */
 799     g_slist_free(self->transients);
 800     for (j = 0; j < self->nicons; ++j)
 801         g_free(self->icons[j].data);
 802     if (self->nicons > 0)
 803         g_free(self->icons);
 804     g_free(self->startup_id);
 805     g_free(self->wm_command);
 806     g_free(self->title);
 807     g_free(self->icon_title);
 808     g_free(self->name);
 809     g_free(self->class);
 810     g_free(self->role);
 811     g_free(self->client_machine);
 812     g_free(self->sm_client_id);
 813     g_free(self);
 814 }
 815
 816 void client_fake_unmanage(ObClient *self)
 817 {
 818     /* this is all that got allocated to get the decorations */
 819
 820     frame_free(self->frame);
 821     g_free(self);
 822 }
 823
 824 /*! Returns a new structure containing the per-app settings for this client.
 825   The returned structure needs to be freed with g_free. */
 826 static ObAppSettings *client_get_settings_state(ObClient *self)
 827 {
 828     ObAppSettings *settings;
 829     GSList *it;
 830
 831     settings = config_create_app_settings();
 832
 833     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 834         ObAppSettings *app = it->data;
 835         gboolean match = TRUE;
 836
 837         g_assert(app->name != NULL || app->class != NULL);
 838
 839         /* we know that either name or class is not NULL so it will have to
 840            match to use the rule */
 841         if (app->name &&
 842             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 843             match = FALSE;
 844         else if (app->class &&
 845                 !g_pattern_match(app->class,
 846                                  strlen(self->class), self->class, NULL))
 847             match = FALSE;
 848         else if (app->role &&
 849                  !g_pattern_match(app->role,
 850                                   strlen(self->role), self->role, NULL))
 851             match = FALSE;
 852
 853         if (match) {
 854             ob_debug("Window matching: %s\n", app->name);
 855
 856             /* copy the settings to our struct, overriding the existing
 857                settings if they are not defaults */
 858             config_app_settings_copy_non_defaults(app, settings);
 859         }
 860     }
 861
 862     if (settings->shade != -1)
 863         self->shaded = !!settings->shade;
 864     if (settings->decor != -1)
 865         self->undecorated = !settings->decor;
 866     if (settings->iconic != -1)
 867         self->iconic = !!settings->iconic;
 868     if (settings->skip_pager != -1)
 869         self->skip_pager = !!settings->skip_pager;
 870     if (settings->skip_taskbar != -1)
 871         self->skip_taskbar = !!settings->skip_taskbar;
 872
 873     if (settings->max_vert != -1)
 874         self->max_vert = !!settings->max_vert;
 875     if (settings->max_horz != -1)
 876         self->max_horz = !!settings->max_horz;
 877
 878     if (settings->fullscreen != -1)
 879         self->fullscreen = !!settings->fullscreen;
 880
 881     if (settings->desktop) {
 882         if (settings->desktop == DESKTOP_ALL)
 883             self->desktop = settings->desktop;
 884         else if (settings->desktop > 0 &&
 885                  settings->desktop <= screen_num_desktops)
 886             self->desktop = settings->desktop - 1;
 887     }
 888
 889     if (settings->layer == -1) {
 890         self->below = TRUE;
 891         self->above = FALSE;
 892     }
 893     else if (settings->layer == 0) {
 894         self->below = FALSE;
 895         self->above = FALSE;
 896     }
 897     else if (settings->layer == 1) {
 898         self->below = FALSE;
 899         self->above = TRUE;
 900     }
 901     return settings;
 902 }
 903
 904 static void client_restore_session_state(ObClient *self)
 905 {
 906     GList *it;
 907
 908     ob_debug_type(OB_DEBUG_SM,
 909                   "Restore session for client %s\n", self->title);
 910
 911     if (!(it = session_state_find(self))) {
 912         ob_debug_type(OB_DEBUG_SM,
 913                       "Session data not found for client %s\n", self->title);
 914         return;
 915     }
 916
 917     self->session = it->data;
 918
 919     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 920                   self->title);
 921
 922     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 923     self->positioned = USPosition;
 924     self->sized = USSize;
 925     if (self->session->w > 0)
 926         self->area.width = self->session->w;
 927     if (self->session->h > 0)
 928         self->area.height = self->session->h;
 929     XResizeWindow(ob_display, self->window,
 930                   self->area.width, self->area.height);
 931
 932     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 933                      self->session->desktop :
 934                      MIN(screen_num_desktops - 1, self->session->desktop));
 935     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 936
 937     self->shaded = self->session->shaded;
 938     self->iconic = self->session->iconic;
 939     self->skip_pager = self->session->skip_pager;
 940     self->skip_taskbar = self->session->skip_taskbar;
 941     self->fullscreen = self->session->fullscreen;
 942     self->above = self->session->above;
 943     self->below = self->session->below;
 944     self->max_horz = self->session->max_horz;
 945     self->max_vert = self->session->max_vert;
 946     self->undecorated = self->session->undecorated;
 947 }
 948
 949 static gboolean client_restore_session_stacking(ObClient *self)
 950 {
 951     GList *it, *mypos;
 952
 953     if (!self->session) return FALSE;
 954
 955     mypos = g_list_find(session_saved_state, self->session);
 956     if (!mypos) return FALSE;
 957
 958     /* start above me and look for the first client */
 959     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 960         GList *cit;
 961
 962         for (cit = client_list; cit; cit = g_list_next(cit)) {
 963             ObClient *c = cit->data;
 964             /* found a client that was in the session, so go below it */
 965             if (c->session == it->data) {
 966                 stacking_below(CLIENT_AS_WINDOW(self),
 967                                CLIENT_AS_WINDOW(cit->data));
 968                 return TRUE;
 969             }
 970         }
 971     }
 972     return FALSE;
 973 }
 974
 975 void client_move_onscreen(ObClient *self, gboolean rude)
 976 {
 977     gint x = self->area.x;
 978     gint y = self->area.y;
 979     if (client_find_onscreen(self, &x, &y,
 980                              self->area.width,
 981                              self->area.height, rude)) {
 982         client_move(self, x, y);
 983     }
 984 }
 985
 986 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 987                               gboolean rude)
 988 {
 989     gint ox = *x, oy = *y;
 990     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 991     gint fw, fh;
 992     Rect desired;
 993     guint i;
 994
 995     RECT_SET(desired, *x, *y, w, h);
 996     frame_rect_to_frame(self->frame, &desired);
 997
 998     /* get where the frame would be */
 999     frame_client_gravity(self->frame, x, y);
1000
1001     /* get the requested size of the window with decorations */
1002     fw = self->frame->size.left + w + self->frame->size.right;
1003     fh = self->frame->size.top + h + self->frame->size.bottom;
1004
1005     /* If rudeness wasn't requested, then still be rude in a given direction
1006        if the client is not moving, only resizing in that direction */
1007     if (!rude) {
1008         Point oldtl, oldtr, oldbl, oldbr;
1009         Point newtl, newtr, newbl, newbr;
1010         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
1011
1012         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
1013         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
1014                   self->frame->area.y + self->frame->area.height - 1);
1015         POINT_SET(oldtr, oldbr.x, oldtl.y);
1016         POINT_SET(oldbl, oldtl.x, oldbr.y);
1017
1018         POINT_SET(newtl, *x, *y);
1019         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
1020         POINT_SET(newtr, newbr.x, newtl.y);
1021         POINT_SET(newbl, newtl.x, newbr.y);
1022
1023         /* is it moving or just resizing from some corner? */
1024         stationary_l = oldtl.x == newtl.x;
1025         stationary_r = oldtr.x == newtr.x;
1026         stationary_t = oldtl.y == newtl.y;
1027         stationary_b = oldbl.y == newbl.y;
1028
1029         /* if left edge is growing and didnt move right edge */
1030         if (stationary_r && newtl.x < oldtl.x)
1031             rudel = TRUE;
1032         /* if right edge is growing and didnt move left edge */
1033         if (stationary_l && newtr.x > oldtr.x)
1034             ruder = TRUE;
1035         /* if top edge is growing and didnt move bottom edge */
1036         if (stationary_b && newtl.y < oldtl.y)
1037             rudet = TRUE;
1038         /* if bottom edge is growing and didnt move top edge */
1039         if (stationary_t && newbl.y > oldbl.y)
1040             rudeb = TRUE;
1041     }
1042
1043     for (i = 0; i < screen_num_monitors; ++i) {
1044         Rect *a;
1045
1046         if (!screen_physical_area_monitor_contains(i, &desired)) {
1047             if (i < screen_num_monitors - 1)
1048                 continue;
1049
1050             /* the window is not inside any monitor! so just use the first
1051                one */
1052             a = screen_area(self->desktop, 0, NULL);
1053         } else
1054             a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &desired);
1055
1056         /* This makes sure windows aren't entirely outside of the screen so you
1057            can't see them at all.
1058            It makes sure 10% of the window is on the screen at least. At don't
1059            let it move itself off the top of the screen, which would hide the
1060            titlebar on you. (The user can still do this if they want too, it's
1061            only limiting the application.
1062         */
1063         if (client_normal(self)) {
1064             if (!self->strut.right && *x + fw/10 >= a->x + a->width - 1)
1065                 *x = a->x + a->width - fw/10;
1066             if (!self->strut.bottom && *y + fh/10 >= a->y + a->height - 1)
1067                 *y = a->y + a->height - fh/10;
1068             if (!self->strut.left && *x + fw*9/10 - 1 < a->x)
1069                 *x = a->x - fw*9/10;
1070             if (!self->strut.top && *y + fh*9/10 - 1 < a->y)
1071                 *y = a->y - fh*9/10;
1072         }
1073
1074         /* This here doesn't let windows even a pixel outside the
1075            struts/screen. When called from client_manage, programs placing
1076            themselves are forced completely onscreen, while things like
1077            xterm -geometry resolution-width/2 will work fine. Trying to
1078            place it completely offscreen will be handled in the above code.
1079            Sorry for this confused comment, i am tired. */
1080         if (rudel && !self->strut.left && *x < a->x) *x = a->x;
1081         if (ruder && !self->strut.right && *x + fw > a->x + a->width)
1082             *x = a->x + MAX(0, a->width - fw);
1083
1084         if (rudet && !self->strut.top && *y < a->y) *y = a->y;
1085         if (rudeb && !self->strut.bottom && *y + fh > a->y + a->height)
1086             *y = a->y + MAX(0, a->height - fh);
1087
1088         g_free(a);
1089     }
1090
1091     /* get where the client should be */
1092     frame_frame_gravity(self->frame, x, y);
1093
1094     return ox != *x || oy != *y;
1095 }
1096
1097 static void client_get_all(ObClient *self, gboolean real)
1098 {
1099     /* this is needed for the frame to set itself up */
1100     client_get_area(self);
1101
1102     /* these things can change the decor and functions of the window */
1103
1104     client_get_mwm_hints(self);
1105     /* this can change the mwmhints for special cases */
1106     client_get_type_and_transientness(self);
1107     client_get_state(self);
1108     client_update_normal_hints(self);
1109
1110     /* get the session related properties, these can change decorations
1111        from per-app settings */
1112     client_get_session_ids(self);
1113
1114     /* now we got everything that can affect the decorations */
1115     if (!real)
1116         return;
1117
1118     /* get this early so we have it for debugging */
1119     client_update_title(self);
1120
1121     client_update_protocols(self);
1122
1123     client_update_wmhints(self);
1124     /* this may have already been called from client_update_wmhints */
1125     if (!self->parents && !self->transient_for_group)
1126         client_update_transient_for(self);
1127
1128     client_get_startup_id(self);
1129     client_get_desktop(self);/* uses transient data/group/startup id if a
1130                                 desktop is not specified */
1131     client_get_shaped(self);
1132
1133     {
1134         /* a couple type-based defaults for new windows */
1135
1136         /* this makes sure that these windows appear on all desktops */
1137         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1138             self->desktop = DESKTOP_ALL;
1139     }
1140
1141 #ifdef SYNC
1142     client_update_sync_request_counter(self);
1143 #endif
1144
1145     client_get_colormap(self);
1146     client_update_strut(self);
1147     client_update_icons(self);
1148     client_update_icon_geometry(self);
1149 }
1150
1151 static void client_get_startup_id(ObClient *self)
1152 {
1153     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1154         if (self->group)
1155             PROP_GETS(self->group->leader,
1156                       net_startup_id, utf8, &self->startup_id);
1157 }
1158
1159 static void client_get_area(ObClient *self)
1160 {
1161     XWindowAttributes wattrib;
1162     Status ret;
1163
1164     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1165     g_assert(ret != BadWindow);
1166
1167     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1168     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1169     self->border_width = wattrib.border_width;
1170
1171     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1172              wattrib.width, wattrib.height, wattrib.border_width);
1173 }
1174
1175 static void client_get_desktop(ObClient *self)
1176 {
1177     guint32 d = screen_num_desktops; /* an always-invalid value */
1178
1179     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1180         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1181             self->desktop = screen_num_desktops - 1;
1182         else
1183             self->desktop = d;
1184         ob_debug("client requested desktop 0x%x\n", self->desktop);
1185     } else {
1186         GSList *it;
1187         gboolean first = TRUE;
1188         guint all = screen_num_desktops; /* not a valid value */
1189
1190         /* if they are all on one desktop, then open it on the
1191            same desktop */
1192         for (it = self->parents; it; it = g_slist_next(it)) {
1193             ObClient *c = it->data;
1194
1195             if (c->desktop == DESKTOP_ALL) continue;
1196
1197             if (first) {
1198                 all = c->desktop;
1199                 first = FALSE;
1200             }
1201             else if (all != c->desktop)
1202                 all = screen_num_desktops; /* make it invalid */
1203         }
1204         if (all != screen_num_desktops) {
1205             self->desktop = all;
1206
1207             ob_debug("client desktop set from parents: 0x%x\n",
1208                      self->desktop);
1209         }
1210         /* try get from the startup-notification protocol */
1211         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1212             if (self->desktop >= screen_num_desktops &&
1213                 self->desktop != DESKTOP_ALL)
1214                 self->desktop = screen_num_desktops - 1;
1215             ob_debug("client desktop set from startup-notification: 0x%x\n",
1216                      self->desktop);
1217         }
1218         /* defaults to the current desktop */
1219         else {
1220             self->desktop = screen_desktop;
1221             ob_debug("client desktop set to the current desktop: %d\n",
1222                      self->desktop);
1223         }
1224     }
1225 }
1226
1227 static void client_get_state(ObClient *self)
1228 {
1229     guint32 *state;
1230     guint num;
1231
1232     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1233         gulong i;
1234         for (i = 0; i < num; ++i) {
1235             if (state[i] == prop_atoms.net_wm_state_modal)
1236                 self->modal = TRUE;
1237             else if (state[i] == prop_atoms.net_wm_state_shaded)
1238                 self->shaded = TRUE;
1239             else if (state[i] == prop_atoms.net_wm_state_hidden)
1240                 self->iconic = TRUE;
1241             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1242                 self->skip_taskbar = TRUE;
1243             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1244                 self->skip_pager = TRUE;
1245             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1246                 self->fullscreen = TRUE;
1247             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1248                 self->max_vert = TRUE;
1249             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1250                 self->max_horz = TRUE;
1251             else if (state[i] == prop_atoms.net_wm_state_above)
1252                 self->above = TRUE;
1253             else if (state[i] == prop_atoms.net_wm_state_below)
1254                 self->below = TRUE;
1255             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1256                 self->demands_attention = TRUE;
1257             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1258                 self->undecorated = TRUE;
1259         }
1260
1261         g_free(state);
1262     }
1263 }
1264
1265 static void client_get_shaped(ObClient *self)
1266 {
1267     self->shaped = FALSE;
1268 #ifdef   SHAPE
1269     if (extensions_shape) {
1270         gint foo;
1271         guint ufoo;
1272         gint s;
1273
1274         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1275
1276         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1277                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1278                            &ufoo);
1279         self->shaped = (s != 0);
1280     }
1281 #endif
1282 }
1283
1284 void client_update_transient_for(ObClient *self)
1285 {
1286     Window t = None;
1287     ObClient *target = NULL;
1288     gboolean trangroup = FALSE;
1289
1290     if (XGetTransientForHint(ob_display, self->window, &t)) {
1291         if (t != self->window) { /* cant be transient to itself! */
1292             target = g_hash_table_lookup(window_map, &t);
1293             /* if this happens then we need to check for it*/
1294             g_assert(target != self);
1295             if (target && !WINDOW_IS_CLIENT(target)) {
1296                 /* this can happen when a dialog is a child of
1297                    a dockapp, for example */
1298                 target = NULL;
1299             }
1300         }
1301
1302         /* Setting the transient_for to Root is actually illegal, however
1303            applications from time have done this to specify transient for
1304            their group */
1305         if (!target && self->group && t == RootWindow(ob_display, ob_screen))
1306             trangroup = TRUE;
1307     } else if (self->group && self->transient)
1308         trangroup = TRUE;
1309
1310     client_update_transient_tree(self, self->group, self->group,
1311                                  self->transient_for_group, trangroup,
1312                                  client_direct_parent(self), target);
1313     self->transient_for_group = trangroup;
1314
1315 }
1316
1317 static void client_update_transient_tree(ObClient *self,
1318                                          ObGroup *oldgroup, ObGroup *newgroup,
1319                                          gboolean oldgtran, gboolean newgtran,
1320                                          ObClient* oldparent,
1321                                          ObClient *newparent)
1322 {
1323     GSList *it, *next;
1324     ObClient *c;
1325
1326     g_assert(!oldgtran || oldgroup);
1327     g_assert(!newgtran || newgroup);
1328     g_assert((!oldgtran && !oldparent) ||
1329              (oldgtran && !oldparent) ||
1330              (!oldgtran && oldparent));
1331     g_assert((!newgtran && !newparent) ||
1332              (newgtran && !newparent) ||
1333              (!newgtran && newparent));
1334
1335     /* * *
1336       Group transient windows are not allowed to have other group
1337       transient windows as their children.
1338       * * */
1339
1340
1341     /* No change has occured */
1342     if (oldgroup == newgroup &&
1343         oldgtran == newgtran &&
1344         oldparent == newparent) return;
1345
1346     /** Remove the client from the transient tree **/
1347
1348     for (it = self->transients; it; it = next) {
1349         next = g_slist_next(it);
1350         c = it->data;
1351         self->transients = g_slist_delete_link(self->transients, it);
1352         c->parents = g_slist_remove(c->parents, self);
1353     }
1354     for (it = self->parents; it; it = next) {
1355         next = g_slist_next(it);
1356         c = it->data;
1357         self->parents = g_slist_delete_link(self->parents, it);
1358         c->transients = g_slist_remove(c->transients, self);
1359     }
1360
1361     /** Re-add the client to the transient tree **/
1362
1363     /* If we're transient for a group then we need to add ourselves to all our
1364        parents */
1365     if (newgtran) {
1366         for (it = newgroup->members; it; it = g_slist_next(it)) {
1367             c = it->data;
1368             if (c != self &&
1369                 !client_search_top_direct_parent(c)->transient_for_group &&
1370                 client_normal(c))
1371             {
1372                 c->transients = g_slist_prepend(c->transients, self);
1373                 self->parents = g_slist_prepend(self->parents, c);
1374             }
1375         }
1376     }
1377
1378     /* If we are now transient for a single window we need to add ourselves to
1379        its children
1380
1381        WARNING: Cyclical transient ness is possible if two windows are
1382        transient for eachother.
1383     */
1384     else if (newparent &&
1385              /* don't make ourself its child if it is already our child */
1386              !client_is_direct_child(self, newparent) &&
1387              client_normal(newparent))
1388     {
1389         newparent->transients = g_slist_prepend(newparent->transients, self);
1390         self->parents = g_slist_prepend(self->parents, newparent);
1391     }
1392
1393     /* Add any group transient windows to our children. But if we're transient
1394        for the group, then other group transients are not our children.
1395
1396        WARNING: Cyclical transient-ness is possible. For e.g. if:
1397        A is transient for the group
1398        B is transient for A
1399        C is transient for B
1400        A can't be transient for C or we have a cycle
1401     */
1402     if (!newgtran && newgroup &&
1403         (!newparent ||
1404          !client_search_top_direct_parent(newparent)->transient_for_group) &&
1405         client_normal(self))
1406     {
1407         for (it = newgroup->members; it; it = g_slist_next(it)) {
1408             c = it->data;
1409             if (c != self && c->transient_for_group &&
1410                 /* Don't make it our child if it is already our parent */
1411                 !client_is_direct_child(c, self))
1412             {
1413                 self->transients = g_slist_prepend(self->transients, c);
1414                 c->parents = g_slist_prepend(c->parents, self);
1415             }
1416         }
1417     }
1418
1419     /** If we change our group transient-ness, our children change their
1420         effect group transient-ness, which affects how they relate to other
1421         group windows **/
1422
1423     for (it = self->transients; it; it = g_slist_next(it)) {
1424         c = it->data;
1425         if (!c->transient_for_group)
1426             client_update_transient_tree(c, c->group, c->group,
1427                                          c->transient_for_group,
1428                                          c->transient_for_group,
1429                                          client_direct_parent(c),
1430                                          client_direct_parent(c));
1431     }
1432 }
1433
1434 static void client_get_mwm_hints(ObClient *self)
1435 {
1436     guint num;
1437     guint32 *hints;
1438
1439     self->mwmhints.flags = 0; /* default to none */
1440
1441     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1442                     &hints, &num)) {
1443         if (num >= OB_MWM_ELEMENTS) {
1444             self->mwmhints.flags = hints[0];
1445             self->mwmhints.functions = hints[1];
1446             self->mwmhints.decorations = hints[2];
1447         }
1448         g_free(hints);
1449     }
1450 }
1451
1452 void client_get_type_and_transientness(ObClient *self)
1453 {
1454     guint num, i;
1455     guint32 *val;
1456     Window t;
1457
1458     self->type = -1;
1459     self->transient = FALSE;
1460
1461     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1462         /* use the first value that we know about in the array */
1463         for (i = 0; i < num; ++i) {
1464             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1465                 self->type = OB_CLIENT_TYPE_DESKTOP;
1466             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1467                 self->type = OB_CLIENT_TYPE_DOCK;
1468             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1469                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1470             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1471                 self->type = OB_CLIENT_TYPE_MENU;
1472             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1473                 self->type = OB_CLIENT_TYPE_UTILITY;
1474             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1475                 self->type = OB_CLIENT_TYPE_SPLASH;
1476             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1477                 self->type = OB_CLIENT_TYPE_DIALOG;
1478             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1479                 self->type = OB_CLIENT_TYPE_NORMAL;
1480             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1481                 /* prevent this window from getting any decor or
1482                    functionality */
1483                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1484                                          OB_MWM_FLAG_DECORATIONS);
1485                 self->mwmhints.decorations = 0;
1486                 self->mwmhints.functions = 0;
1487             }
1488             if (self->type != (ObClientType) -1)
1489                 break; /* grab the first legit type */
1490         }
1491         g_free(val);
1492     }
1493
1494     if (XGetTransientForHint(ob_display, self->window, &t))
1495         self->transient = TRUE;
1496
1497     if (self->type == (ObClientType) -1) {
1498         /*the window type hint was not set, which means we either classify
1499           ourself as a normal window or a dialog, depending on if we are a
1500           transient. */
1501         if (self->transient)
1502             self->type = OB_CLIENT_TYPE_DIALOG;
1503         else
1504             self->type = OB_CLIENT_TYPE_NORMAL;
1505     }
1506
1507     /* then, based on our type, we can update our transientness.. */
1508     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1509         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1510         self->type == OB_CLIENT_TYPE_MENU ||
1511         self->type == OB_CLIENT_TYPE_UTILITY)
1512     {
1513         self->transient = TRUE;
1514     }
1515 }
1516
1517 void client_update_protocols(ObClient *self)
1518 {
1519     guint32 *proto;
1520     guint num_return, i;
1521
1522     self->focus_notify = FALSE;
1523     self->delete_window = FALSE;
1524
1525     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1526         for (i = 0; i < num_return; ++i) {
1527             if (proto[i] == prop_atoms.wm_delete_window)
1528                 /* this means we can request the window to close */
1529                 self->delete_window = TRUE;
1530             else if (proto[i] == prop_atoms.wm_take_focus)
1531                 /* if this protocol is requested, then the window will be
1532                    notified whenever we want it to receive focus */
1533                 self->focus_notify = TRUE;
1534             else if (proto[i] == prop_atoms.net_wm_ping)
1535                 /* if this protocol is requested, then the window will allow
1536                    pings to determine if it is still alive */
1537                 self->ping = TRUE;
1538 #ifdef SYNC
1539             else if (proto[i] == prop_atoms.net_wm_sync_request)
1540                 /* if this protocol is requested, then resizing the
1541                    window will be synchronized between the frame and the
1542                    client */
1543                 self->sync_request = TRUE;
1544 #endif
1545         }
1546         g_free(proto);
1547     }
1548 }
1549
1550 #ifdef SYNC
1551 void client_update_sync_request_counter(ObClient *self)
1552 {
1553     guint32 i;
1554
1555     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1556         self->sync_counter = i;
1557     } else
1558         self->sync_counter = None;
1559 }
1560 #endif
1561
1562 static void client_get_colormap(ObClient *self)
1563 {
1564     XWindowAttributes wa;
1565
1566     if (XGetWindowAttributes(ob_display, self->window, &wa))
1567         client_update_colormap(self, wa.colormap);
1568 }
1569
1570 void client_update_colormap(ObClient *self, Colormap colormap)
1571 {
1572     if (colormap == self->colormap) return;
1573
1574     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1575
1576     if (client_focused(self)) {
1577         screen_install_colormap(self, FALSE); /* uninstall old one */
1578         self->colormap = colormap;
1579         screen_install_colormap(self, FALSE); /* install new one */
1580     } else
1581         self->colormap = colormap;
1582 }
1583
1584 void client_update_normal_hints(ObClient *self)
1585 {
1586     XSizeHints size;
1587     glong ret;
1588
1589     /* defaults */
1590     self->min_ratio = 0.0f;
1591     self->max_ratio = 0.0f;
1592     SIZE_SET(self->size_inc, 1, 1);
1593     SIZE_SET(self->base_size, 0, 0);
1594     SIZE_SET(self->min_size, 0, 0);
1595     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1596
1597     /* get the hints from the window */
1598     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1599         /* normal windows can't request placement! har har
1600         if (!client_normal(self))
1601         */
1602         self->positioned = (size.flags & (PPosition|USPosition));
1603         self->sized = (size.flags & (PSize|USSize));
1604
1605         if (size.flags & PWinGravity)
1606             self->gravity = size.win_gravity;
1607
1608         if (size.flags & PAspect) {
1609             if (size.min_aspect.y)
1610                 self->min_ratio =
1611                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1612             if (size.max_aspect.y)
1613                 self->max_ratio =
1614                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1615         }
1616
1617         if (size.flags & PMinSize)
1618             SIZE_SET(self->min_size, size.min_width, size.min_height);
1619
1620         if (size.flags & PMaxSize)
1621             SIZE_SET(self->max_size, size.max_width, size.max_height);
1622
1623         if (size.flags & PBaseSize)
1624             SIZE_SET(self->base_size, size.base_width, size.base_height);
1625
1626         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1627             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1628
1629         ob_debug("Normal hints: min size (%d %d) max size (%d %d)\n   "
1630                  "size inc (%d %d) base size (%d %d)\n",
1631                  self->min_size.width, self->min_size.height,
1632                  self->max_size.width, self->max_size.height,
1633                  self->size_inc.width, self->size_inc.height,
1634                  self->base_size.width, self->base_size.height);
1635     }
1636     else
1637         ob_debug("Normal hints: not set\n");
1638 }
1639
1640 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1641 {
1642     /* start with everything (cept fullscreen) */
1643     self->decorations =
1644         (OB_FRAME_DECOR_TITLEBAR |
1645          OB_FRAME_DECOR_HANDLE |
1646          OB_FRAME_DECOR_GRIPS |
1647          OB_FRAME_DECOR_BORDER |
1648          OB_FRAME_DECOR_ICON |
1649          OB_FRAME_DECOR_ALLDESKTOPS |
1650          OB_FRAME_DECOR_ICONIFY |
1651          OB_FRAME_DECOR_MAXIMIZE |
1652          OB_FRAME_DECOR_SHADE |
1653          OB_FRAME_DECOR_CLOSE);
1654     self->functions =
1655         (OB_CLIENT_FUNC_RESIZE |
1656          OB_CLIENT_FUNC_MOVE |
1657          OB_CLIENT_FUNC_ICONIFY |
1658          OB_CLIENT_FUNC_MAXIMIZE |
1659          OB_CLIENT_FUNC_SHADE |
1660          OB_CLIENT_FUNC_CLOSE |
1661          OB_CLIENT_FUNC_BELOW |
1662          OB_CLIENT_FUNC_ABOVE |
1663          OB_CLIENT_FUNC_UNDECORATE);
1664
1665     if (!(self->min_size.width < self->max_size.width ||
1666           self->min_size.height < self->max_size.height))
1667         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1668
1669     switch (self->type) {
1670     case OB_CLIENT_TYPE_NORMAL:
1671         /* normal windows retain all of the possible decorations and
1672            functionality, and can be fullscreen */
1673         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1674         break;
1675
1676     case OB_CLIENT_TYPE_DIALOG:
1677         /* sometimes apps make dialog windows fullscreen for some reason (for
1678            e.g. kpdf does this..) */
1679         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1680         break;
1681
1682     case OB_CLIENT_TYPE_UTILITY:
1683         /* these windows don't have anything added or removed by default */
1684         break;
1685
1686     case OB_CLIENT_TYPE_MENU:
1687     case OB_CLIENT_TYPE_TOOLBAR:
1688         /* these windows can't iconify or maximize */
1689         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1690                                OB_FRAME_DECOR_MAXIMIZE);
1691         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1692                              OB_CLIENT_FUNC_MAXIMIZE);
1693         break;
1694
1695     case OB_CLIENT_TYPE_SPLASH:
1696         /* these don't get get any decorations, and the only thing you can
1697            do with them is move them */
1698         self->decorations = 0;
1699         self->functions = OB_CLIENT_FUNC_MOVE;
1700         break;
1701
1702     case OB_CLIENT_TYPE_DESKTOP:
1703         /* these windows are not manipulated by the window manager */
1704         self->decorations = 0;
1705         self->functions = 0;
1706         break;
1707
1708     case OB_CLIENT_TYPE_DOCK:
1709         /* these windows are not manipulated by the window manager, but they
1710            can set below layer which has a special meaning */
1711         self->decorations = 0;
1712         self->functions = OB_CLIENT_FUNC_BELOW;
1713         break;
1714     }
1715
1716     /* Mwm Hints are applied subtractively to what has already been chosen for
1717        decor and functionality */
1718     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1719         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1720             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1721                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1722             {
1723                 /* if the mwm hints request no handle or title, then all
1724                    decorations are disabled, but keep the border if that's
1725                    specified */
1726                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1727                     self->decorations = OB_FRAME_DECOR_BORDER;
1728                 else
1729                     self->decorations = 0;
1730             }
1731         }
1732     }
1733
1734     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1735         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1736             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1737                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1738             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1739                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1740             /* dont let mwm hints kill any buttons
1741                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1742                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1743                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1744                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1745             */
1746             /* dont let mwm hints kill the close button
1747                if (! (self->mwmhints.functions & MwmFunc_Close))
1748                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1749         }
1750     }
1751
1752     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1753         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1754     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1755         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1756     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1757         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1758
1759     /* can't maximize without moving/resizing */
1760     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1761           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1762           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1763         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1764         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1765     }
1766
1767     if (self->max_horz && self->max_vert) {
1768         /* you can't resize fully maximized windows */
1769         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1770         /* kill the handle on fully maxed windows */
1771         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1772     }
1773
1774     /* If there are no decorations to remove, don't allow the user to try
1775        toggle the state */
1776     if (self->decorations == 0)
1777         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1778
1779     /* finally, the user can have requested no decorations, which overrides
1780        everything (but doesnt give it a border if it doesnt have one) */
1781     if (self->undecorated)
1782         self->decorations = 0;
1783
1784     /* if we don't have a titlebar, then we cannot shade! */
1785     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1786         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1787
1788     /* now we need to check against rules for the client's current state */
1789     if (self->fullscreen) {
1790         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1791                             OB_CLIENT_FUNC_FULLSCREEN |
1792                             OB_CLIENT_FUNC_ICONIFY);
1793         self->decorations = 0;
1794     }
1795
1796     client_change_allowed_actions(self);
1797
1798     if (reconfig)
1799         /* force reconfigure to make sure decorations are updated */
1800         client_reconfigure(self, TRUE);
1801 }
1802
1803 static void client_change_allowed_actions(ObClient *self)
1804 {
1805     gulong actions[12];
1806     gint num = 0;
1807
1808     /* desktop windows are kept on all desktops */
1809     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1810         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1811
1812     if (self->functions & OB_CLIENT_FUNC_SHADE)
1813         actions[num++] = prop_atoms.net_wm_action_shade;
1814     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1815         actions[num++] = prop_atoms.net_wm_action_close;
1816     if (self->functions & OB_CLIENT_FUNC_MOVE)
1817         actions[num++] = prop_atoms.net_wm_action_move;
1818     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1819         actions[num++] = prop_atoms.net_wm_action_minimize;
1820     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1821         actions[num++] = prop_atoms.net_wm_action_resize;
1822     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1823         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1824     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1825         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1826         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1827     }
1828     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1829         actions[num++] = prop_atoms.net_wm_action_above;
1830     if (self->functions & OB_CLIENT_FUNC_BELOW)
1831         actions[num++] = prop_atoms.net_wm_action_below;
1832     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1833         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1834
1835     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1836
1837     /* make sure the window isn't breaking any rules now */
1838
1839     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1840         if (self->frame) client_shade(self, FALSE);
1841         else self->shaded = FALSE;
1842     }
1843     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1844         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1845         else self->iconic = FALSE;
1846     }
1847     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1848         if (self->frame) client_fullscreen(self, FALSE);
1849         else self->fullscreen = FALSE;
1850     }
1851     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1852                                                          self->max_vert)) {
1853         if (self->frame) client_maximize(self, FALSE, 0);
1854         else self->max_vert = self->max_horz = FALSE;
1855     }
1856 }
1857
1858 void client_update_wmhints(ObClient *self)
1859 {
1860     XWMHints *hints;
1861
1862     /* assume a window takes input if it doesnt specify */
1863     self->can_focus = TRUE;
1864
1865     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1866         gboolean ur;
1867
1868         if (hints->flags & InputHint)
1869             self->can_focus = hints->input;
1870
1871         /* only do this when first managing the window *AND* when we aren't
1872            starting up! */
1873         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1874             if (hints->flags & StateHint)
1875                 self->iconic = hints->initial_state == IconicState;
1876
1877         ur = self->urgent;
1878         self->urgent = (hints->flags & XUrgencyHint);
1879         if (self->urgent && !ur)
1880             client_hilite(self, TRUE);
1881         else if (!self->urgent && ur && self->demands_attention)
1882             client_hilite(self, FALSE);
1883
1884         if (!(hints->flags & WindowGroupHint))
1885             hints->window_group = None;
1886
1887         /* did the group state change? */
1888         if (hints->window_group !=
1889             (self->group ? self->group->leader : None))
1890         {
1891             ObGroup *oldgroup = self->group;
1892
1893             /* remove from the old group if there was one */
1894             if (self->group != NULL) {
1895                 group_remove(self->group, self);
1896                 self->group = NULL;
1897             }
1898
1899             /* add ourself to the group if we have one */
1900             if (hints->window_group != None) {
1901                 self->group = group_add(hints->window_group, self);
1902             }
1903
1904             /* Put ourselves into the new group's transient tree, and remove
1905                ourselves from the old group's */
1906             client_update_transient_tree(self, oldgroup, self->group,
1907                                          self->transient_for_group,
1908                                          self->transient_for_group,
1909                                          client_direct_parent(self),
1910                                          client_direct_parent(self));
1911
1912             /* Lastly, being in a group, or not, can change if the window is
1913                transient for anything.
1914
1915                The logic for this is:
1916                self->transient = TRUE always if the window wants to be
1917                transient for something, even if transient_for was NULL because
1918                it wasn't in a group before.
1919
1920                If parents was NULL and oldgroup was NULL we can assume
1921                that when we add the new group, it will become transient for
1922                something.
1923
1924                If transient_for_group is TRUE, then it must have already
1925                had a group. If it is getting a new group, the above call to
1926                client_update_transient_tree has already taken care of
1927                everything ! If it is losing all group status then it will
1928                no longer be transient for anything and that needs to be
1929                updated.
1930             */
1931             if (self->transient &&
1932                 ((self->parents == NULL && oldgroup == NULL) ||
1933                  (self->transient_for_group && !self->group)))
1934                 client_update_transient_for(self);
1935         }
1936
1937         /* the WM_HINTS can contain an icon */
1938         if (hints->flags & IconPixmapHint)
1939             client_update_icons(self);
1940
1941         XFree(hints);
1942     }
1943 }
1944
1945 void client_update_title(ObClient *self)
1946 {
1947     gchar *data = NULL;
1948     gchar *visible = NULL;
1949
1950     g_free(self->title);
1951
1952     /* try netwm */
1953     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1954         /* try old x stuff */
1955         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1956               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1957             if (self->transient) {
1958     /*
1959     GNOME alert windows are not given titles:
1960     http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1961     */
1962                 data = g_strdup("");
1963             } else
1964                 data = g_strdup("Unnamed Window");
1965         }
1966     }
1967
1968     if (self->client_machine) {
1969         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1970         g_free(data);
1971     } else
1972         visible = data;
1973
1974     if (self->not_responding) {
1975         data = visible;
1976         if (self->close_tried_term)
1977             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
1978         else
1979             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
1980         g_free(data);
1981     }
1982
1983     PROP_SETS(self->window, net_wm_visible_name, visible);
1984     self->title = visible;
1985
1986     if (self->frame)
1987         frame_adjust_title(self->frame);
1988
1989     /* update the icon title */
1990     data = NULL;
1991     g_free(self->icon_title);
1992
1993     /* try netwm */
1994     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1995         /* try old x stuff */
1996         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1997               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1998             data = g_strdup(self->title);
1999
2000     if (self->client_machine) {
2001         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
2002         g_free(data);
2003     } else
2004         visible = data;
2005
2006     if (self->not_responding) {
2007         data = visible;
2008         if (self->close_tried_term)
2009             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
2010         else
2011             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
2012         g_free(data);
2013     }
2014
2015     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
2016     self->icon_title = visible;
2017 }
2018
2019 void client_update_strut(ObClient *self)
2020 {
2021     guint num;
2022     guint32 *data;
2023     gboolean got = FALSE;
2024     StrutPartial strut;
2025
2026     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
2027                     &data, &num)) {
2028         if (num == 12) {
2029             got = TRUE;
2030             STRUT_PARTIAL_SET(strut,
2031                               data[0], data[2], data[1], data[3],
2032                               data[4], data[5], data[8], data[9],
2033                               data[6], data[7], data[10], data[11]);
2034         }
2035         g_free(data);
2036     }
2037
2038     if (!got &&
2039         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
2040         if (num == 4) {
2041             Rect *a;
2042
2043             got = TRUE;
2044
2045             /* use the screen's width/height */
2046             a = screen_physical_area_all_monitors();
2047
2048             STRUT_PARTIAL_SET(strut,
2049                               data[0], data[2], data[1], data[3],
2050                               a->y, a->y + a->height - 1,
2051                               a->x, a->x + a->width - 1,
2052                               a->y, a->y + a->height - 1,
2053                               a->x, a->x + a->width - 1);
2054             g_free(a);
2055         }
2056         g_free(data);
2057     }
2058
2059     if (!got)
2060         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2061                           0, 0, 0, 0, 0, 0, 0, 0);
2062
2063     if (!STRUT_EQUAL(strut, self->strut)) {
2064         self->strut = strut;
2065
2066         /* updating here is pointless while we're being mapped cuz we're not in
2067            the client list yet */
2068         if (self->frame)
2069             screen_update_areas();
2070     }
2071 }
2072
2073 /* Avoid storing icons above this size if possible */
2074 #define AVOID_ABOVE 64
2075
2076 void client_update_icons(ObClient *self)
2077 {
2078     guint num;
2079     guint32 *data;
2080     guint w, h, i, j;
2081     guint num_seen;  /* number of icons present */
2082     guint num_small_seen;  /* number of icons small enough present */
2083     guint smallest, smallest_area;
2084
2085     for (i = 0; i < self->nicons; ++i)
2086         g_free(self->icons[i].data);
2087     if (self->nicons > 0)
2088         g_free(self->icons);
2089     self->nicons = 0;
2090
2091     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2092         /* figure out how many valid icons are in here */
2093         i = 0;
2094         num_seen = num_small_seen = 0;
2095         smallest = smallest_area = 0;
2096         if (num > 2)
2097             while (i < num) {
2098                 w = data[i++];
2099                 h = data[i++];
2100                 i += w * h;
2101                 /* watch for it being too small for the specified size, or for
2102                    zero sized icons. */
2103                 if (i > num || w == 0 || h == 0) break;
2104
2105                 if (!smallest_area || w*h < smallest_area) {
2106                     smallest = num_seen;
2107                     smallest_area = w*h;
2108                 }
2109                 ++num_seen;
2110                 if (w <= AVOID_ABOVE && h <= AVOID_ABOVE)
2111                     ++num_small_seen;
2112             }
2113         if (num_small_seen > 0)
2114             self->nicons = num_small_seen;
2115         else if (num_seen)
2116             self->nicons = 1;
2117
2118         self->icons = g_new(ObClientIcon, self->nicons);
2119
2120         /* store the icons */
2121         i = 0;
2122         for (j = 0; j < self->nicons;) {
2123             guint x, y, t;
2124
2125             w = self->icons[j].width = data[i++];
2126             h = self->icons[j].height = data[i++];
2127
2128             /* if there are some icons smaller than the threshold, we're
2129                skipping all the ones above */
2130             if (num_small_seen > 0) {
2131                 if (w > AVOID_ABOVE || h > AVOID_ABOVE) {
2132                     i += w*h;
2133                     continue;
2134                 }
2135             }
2136             /* if there were no icons smaller than the threshold, then we are
2137                only taking the smallest available one we saw */
2138             else if (j != smallest) {
2139                 i += w*h;
2140                 continue;
2141             }
2142
2143             self->icons[j].data = g_new(RrPixel32, w * h);
2144             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2145                 if (x >= w) {
2146                     x = 0;
2147                     ++y;
2148                 }
2149                 self->icons[j].data[t] =
2150                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2151                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2152                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2153                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2154             }
2155             g_assert(i <= num);
2156
2157             ++j;
2158         }
2159
2160         g_free(data);
2161     } else {
2162         XWMHints *hints;
2163
2164         if ((hints = XGetWMHints(ob_display, self->window))) {
2165             if (hints->flags & IconPixmapHint) {
2166                 self->nicons = 1;
2167                 self->icons = g_new(ObClientIcon, self->nicons);
2168                 xerror_set_ignore(TRUE);
2169                 if (!RrPixmapToRGBA(ob_rr_inst,
2170                                     hints->icon_pixmap,
2171                                     (hints->flags & IconMaskHint ?
2172                                      hints->icon_mask : None),
2173                                     &self->icons[0].width,
2174                                     &self->icons[0].height,
2175                                     &self->icons[0].data))
2176                 {
2177                     g_free(self->icons);
2178                     self->nicons = 0;
2179                 }
2180                 xerror_set_ignore(FALSE);
2181             }
2182             XFree(hints);
2183         }
2184     }
2185
2186     /* set the default icon onto the window
2187        in theory, this could be a race, but if a window doesn't set an icon
2188        or removes it entirely, it's not very likely it is going to set one
2189        right away afterwards
2190
2191        if it has parents, then one of them will have an icon already
2192     */
2193     if (self->nicons == 0 && !self->parents) {
2194         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2195         gulong *data;
2196
2197         data = g_new(gulong, 48*48+2);
2198         data[0] = data[1] =  48;
2199         for (i = 0; i < 48*48; ++i)
2200             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2201                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2202                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2203                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2204         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2205         g_free(data);
2206     } else if (self->frame)
2207         /* don't draw the icon empty if we're just setting one now anyways,
2208            we'll get the property change any second */
2209         frame_adjust_icon(self->frame);
2210 }
2211
2212 void client_update_icon_geometry(ObClient *self)
2213 {
2214     guint num;
2215     guint32 *data;
2216
2217     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2218
2219     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num))
2220     {
2221         if (num == 4)
2222             /* don't let them set it with an area < 0 */
2223             RECT_SET(self->icon_geometry, data[0], data[1],
2224                      MAX(data[2],0), MAX(data[3],0));
2225         g_free(data);
2226     }
2227 }
2228
2229 static void client_get_session_ids(ObClient *self)
2230 {
2231     guint32 leader;
2232     gboolean got;
2233     gchar *s;
2234     gchar **ss;
2235
2236     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2237         leader = None;
2238
2239     /* get the SM_CLIENT_ID */
2240     got = FALSE;
2241     if (leader)
2242         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2243     if (!got)
2244         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2245
2246     /* get the WM_CLASS (name and class). make them "" if they are not
2247        provided */
2248     got = FALSE;
2249     if (leader)
2250         got = PROP_GETSS(leader, wm_class, locale, &ss);
2251     if (!got)
2252         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2253
2254     if (got) {
2255         if (ss[0]) {
2256             self->name = g_strdup(ss[0]);
2257             if (ss[1])
2258                 self->class = g_strdup(ss[1]);
2259         }
2260         g_strfreev(ss);
2261     }
2262
2263     if (self->name == NULL) self->name = g_strdup("");
2264     if (self->class == NULL) self->class = g_strdup("");
2265
2266     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2267     got = FALSE;
2268     if (leader)
2269         got = PROP_GETS(leader, wm_window_role, locale, &s);
2270     if (!got)
2271         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2272
2273     if (got)
2274         self->role = s;
2275     else
2276         self->role = g_strdup("");
2277
2278     /* get the WM_COMMAND */
2279     got = FALSE;
2280
2281     if (leader)
2282         got = PROP_GETSS(leader, wm_command, locale, &ss);
2283     if (!got)
2284         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2285
2286     if (got) {
2287         /* merge/mash them all together */
2288         gchar *merge = NULL;
2289         gint i;
2290
2291         for (i = 0; ss[i]; ++i) {
2292             gchar *tmp = merge;
2293             if (merge)
2294                 merge = g_strconcat(merge, ss[i], NULL);
2295             else
2296                 merge = g_strconcat(ss[i], NULL);
2297             g_free(tmp);
2298         }
2299         g_strfreev(ss);
2300
2301         self->wm_command = merge;
2302     }
2303
2304     /* get the WM_CLIENT_MACHINE */
2305     got = FALSE;
2306     if (leader)
2307         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2308     if (!got)
2309         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2310
2311     if (got) {
2312         gchar localhost[128];
2313         guint32 pid;
2314
2315         gethostname(localhost, 127);
2316         localhost[127] = '\0';
2317         if (strcmp(localhost, s) != 0)
2318             self->client_machine = s;
2319         else
2320             g_free(s);
2321
2322         /* see if it has the PID set too (the PID requires that the
2323            WM_CLIENT_MACHINE be set) */
2324         if (PROP_GET32(self->window, net_wm_pid, cardinal, &pid))
2325             self->pid = pid;
2326     }
2327 }
2328
2329 static void client_change_wm_state(ObClient *self)
2330 {
2331     gulong state[2];
2332     glong old;
2333
2334     old = self->wmstate;
2335
2336     if (self->shaded || self->iconic ||
2337         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2338     {
2339         self->wmstate = IconicState;
2340     } else
2341         self->wmstate = NormalState;
2342
2343     if (old != self->wmstate) {
2344         PROP_MSG(self->window, kde_wm_change_state,
2345                  self->wmstate, 1, 0, 0);
2346
2347         state[0] = self->wmstate;
2348         state[1] = None;
2349         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2350     }
2351 }
2352
2353 static void client_change_state(ObClient *self)
2354 {
2355     gulong netstate[12];
2356     guint num;
2357
2358     num = 0;
2359     if (self->modal)
2360         netstate[num++] = prop_atoms.net_wm_state_modal;
2361     if (self->shaded)
2362         netstate[num++] = prop_atoms.net_wm_state_shaded;
2363     if (self->iconic)
2364         netstate[num++] = prop_atoms.net_wm_state_hidden;
2365     if (self->skip_taskbar)
2366         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2367     if (self->skip_pager)
2368         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2369     if (self->fullscreen)
2370         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2371     if (self->max_vert)
2372         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2373     if (self->max_horz)
2374         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2375     if (self->above)
2376         netstate[num++] = prop_atoms.net_wm_state_above;
2377     if (self->below)
2378         netstate[num++] = prop_atoms.net_wm_state_below;
2379     if (self->demands_attention)
2380         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2381     if (self->undecorated)
2382         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2383     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2384
2385     if (self->frame)
2386         frame_adjust_state(self->frame);
2387 }
2388
2389 ObClient *client_search_focus_tree(ObClient *self)
2390 {
2391     GSList *it;
2392     ObClient *ret;
2393
2394     for (it = self->transients; it; it = g_slist_next(it)) {
2395         if (client_focused(it->data)) return it->data;
2396         if ((ret = client_search_focus_tree(it->data))) return ret;
2397     }
2398     return NULL;
2399 }
2400
2401 ObClient *client_search_focus_tree_full(ObClient *self)
2402 {
2403     if (self->parents) {
2404         GSList *it;
2405
2406         for (it = self->parents; it; it = g_slist_next(it)) {
2407             ObClient *c = it->data;
2408             if ((c = client_search_focus_tree_full(it->data))) return c;
2409         }
2410
2411         return NULL;
2412     }
2413     else {
2414         /* this function checks the whole tree, the client_search_focus_tree
2415            does not, so we need to check this window */
2416         if (client_focused(self))
2417             return self;
2418         return client_search_focus_tree(self);
2419     }
2420 }
2421
2422 ObClient *client_search_focus_group_full(ObClient *self)
2423 {
2424     GSList *it;
2425
2426     if (self->group) {
2427         for (it = self->group->members; it; it = g_slist_next(it)) {
2428             ObClient *c = it->data;
2429
2430             if (client_focused(c)) return c;
2431             if ((c = client_search_focus_tree(it->data))) return c;
2432         }
2433     } else
2434         if (client_focused(self)) return self;
2435     return NULL;
2436 }
2437
2438 gboolean client_has_parent(ObClient *self)
2439 {
2440     return self->parents != NULL;
2441 }
2442
2443 static ObStackingLayer calc_layer(ObClient *self)
2444 {
2445     ObStackingLayer l;
2446     Rect *monitor;
2447
2448     monitor = screen_physical_area_monitor(client_monitor(self));
2449
2450     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2451         l = OB_STACKING_LAYER_DESKTOP;
2452     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2453         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2454         else l = OB_STACKING_LAYER_ABOVE;
2455     }
2456     else if ((self->fullscreen ||
2457               /* No decorations and fills the monitor = oldskool fullscreen.
2458                  But not for maximized windows.
2459               */
2460               (self->decorations == 0 &&
2461                !(self->max_horz && self->max_vert) &&
2462                RECT_EQUAL(self->area, *monitor))) &&
2463              (client_focused(self) || client_search_focus_tree(self)))
2464         l = OB_STACKING_LAYER_FULLSCREEN;
2465     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2466     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2467     else l = OB_STACKING_LAYER_NORMAL;
2468
2469     g_free(monitor);
2470
2471     return l;
2472 }
2473
2474 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2475                                         ObStackingLayer min)
2476 {
2477     ObStackingLayer old, own;
2478     GSList *it;
2479
2480     old = self->layer;
2481     own = calc_layer(self);
2482     self->layer = MAX(own, min);
2483
2484     if (self->layer != old) {
2485         stacking_remove(CLIENT_AS_WINDOW(self));
2486         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2487     }
2488
2489     for (it = self->transients; it; it = g_slist_next(it))
2490         client_calc_layer_recursive(it->data, orig,
2491                                     self->layer);
2492 }
2493
2494 void client_calc_layer(ObClient *self)
2495 {
2496     ObClient *orig;
2497     GSList *it;
2498
2499     orig = self;
2500
2501     /* transients take on the layer of their parents */
2502     it = client_search_all_top_parents(self);
2503
2504     for (; it; it = g_slist_next(it))
2505         client_calc_layer_recursive(it->data, orig, 0);
2506 }
2507
2508 gboolean client_should_show(ObClient *self)
2509 {
2510     if (self->iconic)
2511         return FALSE;
2512     if (client_normal(self) && screen_showing_desktop)
2513         return FALSE;
2514     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2515         return TRUE;
2516
2517     return FALSE;
2518 }
2519
2520 gboolean client_show(ObClient *self)
2521 {
2522     gboolean show = FALSE;
2523
2524     if (client_should_show(self)) {
2525         frame_show(self->frame);
2526         show = TRUE;
2527
2528         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2529            it needs to be in IconicState. This includes when it is on another
2530            desktop!
2531         */
2532         client_change_wm_state(self);
2533     }
2534     return show;
2535 }
2536
2537 gboolean client_hide(ObClient *self)
2538 {
2539     gboolean hide = FALSE;
2540
2541     if (!client_should_show(self)) {
2542         if (self == focus_client) {
2543             /* if there is a grab going on, then we need to cancel it. if we
2544                move focus during the grab, applications will get
2545                NotifyWhileGrabbed events and ignore them !
2546
2547                actions should not rely on being able to move focus during an
2548                interactive grab.
2549             */
2550             event_cancel_all_key_grabs();
2551         }
2552
2553         /* We don't need to ignore enter events here.
2554            The window can hide/iconify in 3 different ways:
2555            1 - through an x message. in this case we ignore all enter events
2556                caused by responding to the x message (unless underMouse)
2557            2 - by a keyboard action. in this case we ignore all enter events
2558                caused by the action
2559            3 - by a mouse action. in this case they are doing stuff with the
2560                mouse and focus _should_ move.
2561
2562            Also in action_end, we simulate an enter event that can't be ignored
2563            so trying to ignore them is futile in case 3 anyways
2564         */
2565
2566         frame_hide(self->frame);
2567         hide = TRUE;
2568
2569         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2570            it needs to be in IconicState. This includes when it is on another
2571            desktop!
2572         */
2573         client_change_wm_state(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
2613 static void client_apply_startup_state(ObClient *self,
2614                                        gint x, gint y, gint w, gint h)
2615 {
2616     /* save the states that we are going to apply */
2617     gboolean iconic = self->iconic;
2618     gboolean fullscreen = self->fullscreen;
2619     gboolean undecorated = self->undecorated;
2620     gboolean shaded = self->shaded;
2621     gboolean demands_attention = self->demands_attention;
2622     gboolean max_horz = self->max_horz;
2623     gboolean max_vert = self->max_vert;
2624     Rect oldarea;
2625     gint l;
2626
2627     /* turn them all off in the client, so they won't affect the window
2628        being placed */
2629     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2630         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2631
2632     /* move the client to its placed position, or it it's already there,
2633        generate a ConfigureNotify telling the client where it is.
2634
2635        do this after adjusting the frame. otherwise it gets all weird and
2636        clients don't work right
2637
2638        do this before applying the states so they have the correct
2639        pre-max/pre-fullscreen values
2640     */
2641     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2642     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2643              self->window, x, y, w, h);
2644     /* save the area, and make it where it should be for the premax stuff */
2645     oldarea = self->area;
2646     RECT_SET(self->area, x, y, w, h);
2647
2648     /* apply the states. these are in a carefully crafted order.. */
2649
2650     if (iconic)
2651         client_iconify(self, TRUE, FALSE, TRUE);
2652     if (fullscreen)
2653         client_fullscreen(self, TRUE);
2654     if (undecorated)
2655         client_set_undecorated(self, TRUE);
2656     if (shaded)
2657         client_shade(self, TRUE);
2658     if (demands_attention)
2659         client_hilite(self, TRUE);
2660
2661     if (max_vert && max_horz)
2662         client_maximize(self, TRUE, 0);
2663     else if (max_vert)
2664         client_maximize(self, TRUE, 2);
2665     else if (max_horz)
2666         client_maximize(self, TRUE, 1);
2667
2668     /* if the window hasn't been configured yet, then do so now, in fact the
2669        x,y,w,h may _not_ be the same as the area rect, which can end up
2670        meaning that the client isn't properly moved/resized by the fullscreen
2671        function
2672        pho can cause this because it maps at size of the screen but not 0,0
2673        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2674        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2675        cuz thats where the pre-fullscreen will be. however the actual area is
2676        not, so this needs to be called even if we have fullscreened/maxed
2677     */
2678     self->area = oldarea;
2679     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2680
2681     /* set the desktop hint, to make sure that it always exists */
2682     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2683
2684     /* nothing to do for the other states:
2685        skip_taskbar
2686        skip_pager
2687        modal
2688        above
2689        below
2690     */
2691 }
2692
2693 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2694 {
2695     /* these should be the current values. this is for when you're not moving,
2696        just resizing */
2697     g_assert(*x == self->area.x);
2698     g_assert(oldw == self->area.width);
2699
2700     /* horizontal */
2701     switch (self->gravity) {
2702     default:
2703     case NorthWestGravity:
2704     case WestGravity:
2705     case SouthWestGravity:
2706     case StaticGravity:
2707     case ForgetGravity:
2708         break;
2709     case NorthGravity:
2710     case CenterGravity:
2711     case SouthGravity:
2712         *x -= (neww - oldw) / 2;
2713         break;
2714     case NorthEastGravity:
2715     case EastGravity:
2716     case SouthEastGravity:
2717         *x -= neww - oldw;
2718         break;
2719     }
2720 }
2721
2722 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2723 {
2724     /* these should be the current values. this is for when you're not moving,
2725        just resizing */
2726     g_assert(*y == self->area.y);
2727     g_assert(oldh == self->area.height);
2728
2729     /* vertical */
2730     switch (self->gravity) {
2731     default:
2732     case NorthWestGravity:
2733     case NorthGravity:
2734     case NorthEastGravity:
2735     case StaticGravity:
2736     case ForgetGravity:
2737         break;
2738     case WestGravity:
2739     case CenterGravity:
2740     case EastGravity:
2741         *y -= (newh - oldh) / 2;
2742         break;
2743     case SouthWestGravity:
2744     case SouthGravity:
2745     case SouthEastGravity:
2746         *y -= newh - oldh;
2747         break;
2748     }
2749 }
2750
2751 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2752                           gint *logicalw, gint *logicalh,
2753                           gboolean user)
2754 {
2755     Rect desired = {*x, *y, *w, *h};
2756     frame_rect_to_frame(self->frame, &desired);
2757
2758     /* make the frame recalculate its dimentions n shit without changing
2759        anything visible for real, this way the constraints below can work with
2760        the updated frame dimensions. */
2761     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2762
2763     /* gets the frame's position */
2764     frame_client_gravity(self->frame, x, y);
2765
2766     /* these positions are frame positions, not client positions */
2767
2768     /* set the size and position if fullscreen */
2769     if (self->fullscreen) {
2770         Rect *a;
2771         guint i;
2772
2773         i = screen_find_monitor(&desired);
2774         a = screen_physical_area_monitor(i);
2775
2776         *x = a->x;
2777         *y = a->y;
2778         *w = a->width;
2779         *h = a->height;
2780
2781         user = FALSE; /* ignore if the client can't be moved/resized when it
2782                          is fullscreening */
2783
2784         g_free(a);
2785     } else if (self->max_horz || self->max_vert) {
2786         Rect *a;
2787         guint i;
2788
2789         /* use all possible struts when maximizing to the full screen */
2790         i = screen_find_monitor(&desired);
2791         a = screen_area(self->desktop, i,
2792                         (self->max_horz && self->max_vert ? NULL : &desired));
2793
2794         /* set the size and position if maximized */
2795         if (self->max_horz) {
2796             *x = a->x;
2797             *w = a->width - self->frame->size.left - self->frame->size.right;
2798         }
2799         if (self->max_vert) {
2800             *y = a->y;
2801             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2802         }
2803
2804         user = FALSE; /* ignore if the client can't be moved/resized when it
2805                          is maximizing */
2806
2807         g_free(a);
2808     }
2809
2810     /* gets the client's position */
2811     frame_frame_gravity(self->frame, x, y);
2812
2813     /* work within the prefered sizes given by the window */
2814     if (!(*w == self->area.width && *h == self->area.height)) {
2815         gint basew, baseh, minw, minh;
2816         gint incw, inch;
2817         gfloat minratio, maxratio;
2818
2819         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2820         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2821         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2822             0 : self->min_ratio;
2823         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2824             0 : self->max_ratio;
2825
2826         /* base size is substituted with min size if not specified */
2827         if (self->base_size.width || self->base_size.height) {
2828             basew = self->base_size.width;
2829             baseh = self->base_size.height;
2830         } else {
2831             basew = self->min_size.width;
2832             baseh = self->min_size.height;
2833         }
2834         /* min size is substituted with base size if not specified */
2835         if (self->min_size.width || self->min_size.height) {
2836             minw = self->min_size.width;
2837             minh = self->min_size.height;
2838         } else {
2839             minw = self->base_size.width;
2840             minh = self->base_size.height;
2841         }
2842
2843         /* if this is a user-requested resize, then check against min/max
2844            sizes */
2845
2846         /* smaller than min size or bigger than max size? */
2847         if (*w > self->max_size.width) *w = self->max_size.width;
2848         if (*w < minw) *w = minw;
2849         if (*h > self->max_size.height) *h = self->max_size.height;
2850         if (*h < minh) *h = minh;
2851
2852         *w -= basew;
2853         *h -= baseh;
2854
2855         /* keep to the increments */
2856         *w /= incw;
2857         *h /= inch;
2858
2859         /* you cannot resize to nothing */
2860         if (basew + *w < 1) *w = 1 - basew;
2861         if (baseh + *h < 1) *h = 1 - baseh;
2862
2863         /* save the logical size */
2864         *logicalw = incw > 1 ? *w : *w + basew;
2865         *logicalh = inch > 1 ? *h : *h + baseh;
2866
2867         *w *= incw;
2868         *h *= inch;
2869
2870         *w += basew;
2871         *h += baseh;
2872
2873         /* adjust the height to match the width for the aspect ratios.
2874            for this, min size is not substituted for base size ever. */
2875         *w -= self->base_size.width;
2876         *h -= self->base_size.height;
2877
2878         if (minratio)
2879             if (*h * minratio > *w) {
2880                 *h = (gint)(*w / minratio);
2881
2882                 /* you cannot resize to nothing */
2883                 if (*h < 1) {
2884                     *h = 1;
2885                     *w = (gint)(*h * minratio);
2886                 }
2887             }
2888         if (maxratio)
2889             if (*h * maxratio < *w) {
2890                 *h = (gint)(*w / maxratio);
2891
2892                 /* you cannot resize to nothing */
2893                 if (*h < 1) {
2894                     *h = 1;
2895                     *w = (gint)(*h * minratio);
2896                 }
2897             }
2898
2899         *w += self->base_size.width;
2900         *h += self->base_size.height;
2901     }
2902
2903     /* these override the above states! if you cant move you can't move! */
2904     if (user) {
2905         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2906             *x = self->area.x;
2907             *y = self->area.y;
2908         }
2909         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2910             *w = self->area.width;
2911             *h = self->area.height;
2912         }
2913     }
2914
2915     g_assert(*w > 0);
2916     g_assert(*h > 0);
2917 }
2918
2919
2920 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2921                       gboolean user, gboolean final, gboolean force_reply)
2922 {
2923     gint oldw, oldh;
2924     gboolean send_resize_client;
2925     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
2926     gboolean fmoved, fresized;
2927     guint fdecor = self->frame->decorations;
2928     gboolean fhorz = self->frame->max_horz;
2929     gboolean fvert = self->frame->max_vert;
2930     gint logicalw, logicalh;
2931
2932     /* find the new x, y, width, and height (and logical size) */
2933     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2934
2935     /* set the logical size if things changed */
2936     if (!(w == self->area.width && h == self->area.height))
2937         SIZE_SET(self->logical_size, logicalw, logicalh);
2938
2939     /* figure out if we moved or resized or what */
2940     moved = (x != self->area.x || y != self->area.y);
2941     resized = (w != self->area.width || h != self->area.height);
2942
2943     oldw = self->area.width;
2944     oldh = self->area.height;
2945     RECT_SET(self->area, x, y, w, h);
2946
2947     /* for app-requested resizes, always resize if 'resized' is true.
2948        for user-requested ones, only resize if final is true, or when
2949        resizing in redraw mode */
2950     send_resize_client = ((!user && resized) ||
2951                           (user && (final ||
2952                                     (resized && config_resize_redraw))));
2953
2954     /* if the client is enlarging, then resize the client before the frame */
2955     if (send_resize_client && (w > oldw || h > oldh)) {
2956         XMoveResizeWindow(ob_display, self->window,
2957                           self->frame->size.left, self->frame->size.top,
2958                           MAX(w, oldw), MAX(h, oldh));
2959         frame_adjust_client_area(self->frame);
2960     }
2961
2962     /* find the frame's dimensions and move/resize it */
2963     fmoved = moved;
2964     fresized = resized;
2965
2966     /* if decorations changed, then readjust everything for the frame */
2967     if (self->decorations != fdecor ||
2968         self->max_horz != fhorz || self->max_vert != fvert)
2969     {
2970         fmoved = fresized = TRUE;
2971     }
2972
2973     /* adjust the frame */
2974     if (fmoved || fresized) {
2975         gulong ignore_start;
2976         if (!user)
2977             ignore_start = event_start_ignore_all_enters();
2978
2979         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2980
2981         if (!user)
2982             event_end_ignore_all_enters(ignore_start);
2983     }
2984
2985     if (!user || final) {
2986         gint oldrx = self->root_pos.x;
2987         gint oldry = self->root_pos.y;
2988         /* we have reset the client to 0 border width, so don't include
2989            it in these coords */
2990         POINT_SET(self->root_pos,
2991                   self->frame->area.x + self->frame->size.left -
2992                   self->border_width,
2993                   self->frame->area.y + self->frame->size.top -
2994                   self->border_width);
2995         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
2996             rootmoved = TRUE;
2997     }
2998
2999     /* This is kinda tricky and should not be changed.. let me explain!
3000
3001        When user = FALSE, then the request is coming from the application
3002        itself, and we are more strict about when to send a synthetic
3003        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3004        in this case (if force_reply is true)
3005
3006        When user = TRUE, then the request is coming from "us", like when we
3007        maximize a window or something.  In this case we are more lenient.  We
3008        used to follow the same rules as above, but _Java_ Swing can't handle
3009        this. So just to appease Swing, when user = TRUE, we always send
3010        a synthetic ConfigureNotify to give the window its root coordinates.
3011     */
3012     if ((!user && !resized && (rootmoved || force_reply)) ||
3013         (user && final && rootmoved))
3014     {
3015         XEvent event;
3016
3017         event.type = ConfigureNotify;
3018         event.xconfigure.display = ob_display;
3019         event.xconfigure.event = self->window;
3020         event.xconfigure.window = self->window;
3021
3022         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
3023                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3024
3025         /* root window real coords */
3026         event.xconfigure.x = self->root_pos.x;
3027         event.xconfigure.y = self->root_pos.y;
3028         event.xconfigure.width = w;
3029         event.xconfigure.height = h;
3030         event.xconfigure.border_width = self->border_width;
3031         event.xconfigure.above = None;
3032         event.xconfigure.override_redirect = FALSE;
3033         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3034                    FALSE, StructureNotifyMask, &event);
3035     }
3036
3037     /* if the client is shrinking, then resize the frame before the client.
3038
3039        both of these resize sections may run, because the top one only resizes
3040        in the direction that is growing
3041      */
3042     if (send_resize_client && (w <= oldw || h <= oldh)) {
3043         frame_adjust_client_area(self->frame);
3044         XMoveResizeWindow(ob_display, self->window,
3045                           self->frame->size.left, self->frame->size.top, w, h);
3046     }
3047
3048     XFlush(ob_display);
3049 }
3050
3051 void client_fullscreen(ObClient *self, gboolean fs)
3052 {
3053     gint x, y, w, h;
3054
3055     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3056         self->fullscreen == fs) return;                   /* already done */
3057
3058     self->fullscreen = fs;
3059     client_change_state(self); /* change the state hints on the client */
3060
3061     if (fs) {
3062         self->pre_fullscreen_area = self->area;
3063         /* if the window is maximized, its area isn't all that meaningful.
3064            save it's premax area instead. */
3065         if (self->max_horz) {
3066             self->pre_fullscreen_area.x = self->pre_max_area.x;
3067             self->pre_fullscreen_area.width = self->pre_max_area.width;
3068         }
3069         if (self->max_vert) {
3070             self->pre_fullscreen_area.y = self->pre_max_area.y;
3071             self->pre_fullscreen_area.height = self->pre_max_area.height;
3072         }
3073
3074         /* these will help configure_full figure out where to fullscreen
3075            the window */
3076         x = self->area.x;
3077         y = self->area.y;
3078         w = self->area.width;
3079         h = self->area.height;
3080     } else {
3081         g_assert(self->pre_fullscreen_area.width > 0 &&
3082                  self->pre_fullscreen_area.height > 0);
3083
3084         x = self->pre_fullscreen_area.x;
3085         y = self->pre_fullscreen_area.y;
3086         w = self->pre_fullscreen_area.width;
3087         h = self->pre_fullscreen_area.height;
3088         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3089     }
3090
3091     ob_debug("Window %s going fullscreen (%d)\n",
3092              self->title, self->fullscreen);
3093
3094     client_setup_decor_and_functions(self, FALSE);
3095     client_move_resize(self, x, y, w, h);
3096
3097     /* and adjust our layer/stacking. do this after resizing the window,
3098        and applying decorations, because windows which fill the screen are
3099        considered "fullscreen" and it affects their layer */
3100     client_calc_layer(self);
3101
3102     if (fs) {
3103         /* try focus us when we go into fullscreen mode */
3104         client_focus(self);
3105     }
3106 }
3107
3108 static void client_iconify_recursive(ObClient *self,
3109                                      gboolean iconic, gboolean curdesk,
3110                                      gboolean hide_animation)
3111 {
3112     GSList *it;
3113     gboolean changed = FALSE;
3114
3115
3116     if (self->iconic != iconic) {
3117         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3118                  self->window);
3119
3120         if (iconic) {
3121             /* don't let non-normal windows iconify along with their parents
3122                or whatever */
3123             if (client_normal(self)) {
3124                 self->iconic = iconic;
3125
3126                 /* update the focus lists.. iconic windows go to the bottom of
3127                    the list */
3128                 focus_order_to_bottom(self);
3129
3130                 changed = TRUE;
3131             }
3132         } else {
3133             self->iconic = iconic;
3134
3135             if (curdesk && self->desktop != screen_desktop &&
3136                 self->desktop != DESKTOP_ALL)
3137                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3138
3139             /* this puts it after the current focused window */
3140             focus_order_remove(self);
3141             focus_order_add_new(self);
3142
3143             changed = TRUE;
3144         }
3145     }
3146
3147     if (changed) {
3148         client_change_state(self);
3149         if (config_animate_iconify && !hide_animation)
3150             frame_begin_iconify_animation(self->frame, iconic);
3151         /* do this after starting the animation so it doesn't flash */
3152         client_showhide(self);
3153     }
3154
3155     /* iconify all direct transients, and deiconify all transients
3156        (non-direct too) */
3157     for (it = self->transients; it; it = g_slist_next(it))
3158         if (it->data != self)
3159             if (client_is_direct_child(self, it->data) || !iconic)
3160                 client_iconify_recursive(it->data, iconic, curdesk,
3161                                          hide_animation);
3162 }
3163
3164 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3165                     gboolean hide_animation)
3166 {
3167     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3168         /* move up the transient chain as far as possible first */
3169         self = client_search_top_direct_parent(self);
3170         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3171     }
3172 }
3173
3174 void client_maximize(ObClient *self, gboolean max, gint dir)
3175 {
3176     gint x, y, w, h;
3177
3178     g_assert(dir == 0 || dir == 1 || dir == 2);
3179     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3180
3181     /* check if already done */
3182     if (max) {
3183         if (dir == 0 && self->max_horz && self->max_vert) return;
3184         if (dir == 1 && self->max_horz) return;
3185         if (dir == 2 && self->max_vert) return;
3186     } else {
3187         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3188         if (dir == 1 && !self->max_horz) return;
3189         if (dir == 2 && !self->max_vert) return;
3190     }
3191
3192     /* these will help configure_full figure out which screen to fill with
3193        the window */
3194     x = self->area.x;
3195     y = self->area.y;
3196     w = self->area.width;
3197     h = self->area.height;
3198
3199     if (max) {
3200         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3201             RECT_SET(self->pre_max_area,
3202                      self->area.x, self->pre_max_area.y,
3203                      self->area.width, self->pre_max_area.height);
3204         }
3205         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3206             RECT_SET(self->pre_max_area,
3207                      self->pre_max_area.x, self->area.y,
3208                      self->pre_max_area.width, self->area.height);
3209         }
3210     } else {
3211         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3212             g_assert(self->pre_max_area.width > 0);
3213
3214             x = self->pre_max_area.x;
3215             w = self->pre_max_area.width;
3216
3217             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3218                      0, self->pre_max_area.height);
3219         }
3220         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3221             g_assert(self->pre_max_area.height > 0);
3222
3223             y = self->pre_max_area.y;
3224             h = self->pre_max_area.height;
3225
3226             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3227                      self->pre_max_area.width, 0);
3228         }
3229     }
3230
3231     if (dir == 0 || dir == 1) /* horz */
3232         self->max_horz = max;
3233     if (dir == 0 || dir == 2) /* vert */
3234         self->max_vert = max;
3235
3236     client_change_state(self); /* change the state hints on the client */
3237
3238     client_setup_decor_and_functions(self, FALSE);
3239     client_move_resize(self, x, y, w, h);
3240 }
3241
3242 void client_shade(ObClient *self, gboolean shade)
3243 {
3244     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3245          shade) ||                         /* can't shade */
3246         self->shaded == shade) return;     /* already done */
3247
3248     self->shaded = shade;
3249     client_change_state(self);
3250     client_change_wm_state(self); /* the window is being hidden/shown */
3251     /* resize the frame to just the titlebar */
3252     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3253 }
3254
3255 static void client_ping_event(ObClient *self, gboolean dead)
3256 {
3257     self->not_responding = dead;
3258     client_update_title(self);
3259
3260     if (!dead) {
3261         /* try kill it nicely the first time again, if it started responding
3262            at some point */
3263         self->close_tried_term = FALSE;
3264     }
3265 }
3266
3267 void client_close(ObClient *self)
3268 {
3269     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3270
3271     /* in the case that the client provides no means to requesting that it
3272        close, we just kill it */
3273     if (!self->delete_window)
3274         /* don't use client_kill(), we should only kill based on PID in
3275            response to a lack of PING replies */
3276         XKillClient(ob_display, self->window);
3277     else if (self->not_responding)
3278         client_kill(self);
3279     else
3280         /* request the client to close with WM_DELETE_WINDOW */
3281         PROP_MSG_TO(self->window, self->window, wm_protocols,
3282                     prop_atoms.wm_delete_window, event_curtime, 0, 0, 0,
3283                     NoEventMask);
3284 }
3285
3286 void client_kill(ObClient *self)
3287 {
3288     if (!self->client_machine && self->pid) {
3289         /* running on the local host */
3290         if (!self->close_tried_term) {
3291             ob_debug("killing window 0x%x with pid %lu, with SIGTERM\n",
3292                      self->window, self->pid);
3293             kill(self->pid, SIGTERM);
3294             self->close_tried_term = TRUE;
3295
3296             /* show that we're trying to kill it */
3297             client_update_title(self);
3298         }
3299         else {
3300             ob_debug("killing window 0x%x with pid %lu, with SIGKILL\n",
3301                      self->window, self->pid);
3302             kill(self->pid, SIGKILL); /* kill -9 */
3303         }
3304     }
3305     else
3306         XKillClient(ob_display, self->window);
3307 }
3308
3309 void client_hilite(ObClient *self, gboolean hilite)
3310 {
3311     if (self->demands_attention == hilite)
3312         return; /* no change */
3313
3314     /* don't allow focused windows to hilite */
3315     self->demands_attention = hilite && !client_focused(self);
3316     if (self->frame != NULL) { /* if we're mapping, just set the state */
3317         if (self->demands_attention)
3318             frame_flash_start(self->frame);
3319         else
3320             frame_flash_stop(self->frame);
3321         client_change_state(self);
3322     }
3323 }
3324
3325 static void client_set_desktop_recursive(ObClient *self,
3326                                          guint target,
3327                                          gboolean donthide,
3328                                          gboolean dontraise)
3329 {
3330     guint old;
3331     GSList *it;
3332
3333     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3334
3335         ob_debug("Setting desktop %u\n", target+1);
3336
3337         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3338
3339         old = self->desktop;
3340         self->desktop = target;
3341         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3342         /* the frame can display the current desktop state */
3343         frame_adjust_state(self->frame);
3344         /* 'move' the window to the new desktop */
3345         if (!donthide)
3346             client_hide(self);
3347         client_show(self);
3348         /* raise if it was not already on the desktop */
3349         if (old != DESKTOP_ALL && !dontraise)
3350             stacking_raise(CLIENT_AS_WINDOW(self));
3351         if (STRUT_EXISTS(self->strut))
3352             screen_update_areas();
3353         else
3354             /* the new desktop's geometry may be different, so we may need to
3355                resize, for example if we are maximized */
3356             client_reconfigure(self, FALSE);
3357     }
3358
3359     /* move all transients */
3360     for (it = self->transients; it; it = g_slist_next(it))
3361         if (it->data != self)
3362             if (client_is_direct_child(self, it->data))
3363                 client_set_desktop_recursive(it->data, target,
3364                                              donthide, dontraise);
3365 }
3366
3367 void client_set_desktop(ObClient *self, guint target,
3368                         gboolean donthide, gboolean dontraise)
3369 {
3370     self = client_search_top_direct_parent(self);
3371     client_set_desktop_recursive(self, target, donthide, dontraise);
3372 }
3373
3374 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3375 {
3376     while (child != parent && (child = client_direct_parent(child)));
3377     return child == parent;
3378 }
3379
3380 ObClient *client_search_modal_child(ObClient *self)
3381 {
3382     GSList *it;
3383     ObClient *ret;
3384
3385     for (it = self->transients; it; it = g_slist_next(it)) {
3386         ObClient *c = it->data;
3387         if ((ret = client_search_modal_child(c))) return ret;
3388         if (c->modal) return c;
3389     }
3390     return NULL;
3391 }
3392
3393 gboolean client_validate(ObClient *self)
3394 {
3395     XEvent e;
3396
3397     XSync(ob_display, FALSE); /* get all events on the server */
3398
3399     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3400         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3401         XPutBackEvent(ob_display, &e);
3402         return FALSE;
3403     }
3404
3405     return TRUE;
3406 }
3407
3408 void client_set_wm_state(ObClient *self, glong state)
3409 {
3410     if (state == self->wmstate) return; /* no change */
3411
3412     switch (state) {
3413     case IconicState:
3414         client_iconify(self, TRUE, TRUE, FALSE);
3415         break;
3416     case NormalState:
3417         client_iconify(self, FALSE, TRUE, FALSE);
3418         break;
3419     }
3420 }
3421
3422 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3423 {
3424     gboolean shaded = self->shaded;
3425     gboolean fullscreen = self->fullscreen;
3426     gboolean undecorated = self->undecorated;
3427     gboolean max_horz = self->max_horz;
3428     gboolean max_vert = self->max_vert;
3429     gboolean modal = self->modal;
3430     gboolean iconic = self->iconic;
3431     gboolean demands_attention = self->demands_attention;
3432     gboolean above = self->above;
3433     gboolean below = self->below;
3434     gint i;
3435
3436     if (!(action == prop_atoms.net_wm_state_add ||
3437           action == prop_atoms.net_wm_state_remove ||
3438           action == prop_atoms.net_wm_state_toggle))
3439         /* an invalid action was passed to the client message, ignore it */
3440         return;
3441
3442     for (i = 0; i < 2; ++i) {
3443         Atom state = i == 0 ? data1 : data2;
3444
3445         if (!state) continue;
3446
3447         /* if toggling, then pick whether we're adding or removing */
3448         if (action == prop_atoms.net_wm_state_toggle) {
3449             if (state == prop_atoms.net_wm_state_modal)
3450                 action = modal ? prop_atoms.net_wm_state_remove :
3451                     prop_atoms.net_wm_state_add;
3452             else if (state == prop_atoms.net_wm_state_maximized_vert)
3453                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3454                     prop_atoms.net_wm_state_add;
3455             else if (state == prop_atoms.net_wm_state_maximized_horz)
3456                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3457                     prop_atoms.net_wm_state_add;
3458             else if (state == prop_atoms.net_wm_state_shaded)
3459                 action = shaded ? prop_atoms.net_wm_state_remove :
3460                     prop_atoms.net_wm_state_add;
3461             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3462                 action = self->skip_taskbar ?
3463                     prop_atoms.net_wm_state_remove :
3464                     prop_atoms.net_wm_state_add;
3465             else if (state == prop_atoms.net_wm_state_skip_pager)
3466                 action = self->skip_pager ?
3467                     prop_atoms.net_wm_state_remove :
3468                     prop_atoms.net_wm_state_add;
3469             else if (state == prop_atoms.net_wm_state_hidden)
3470                 action = self->iconic ?
3471                     prop_atoms.net_wm_state_remove :
3472                     prop_atoms.net_wm_state_add;
3473             else if (state == prop_atoms.net_wm_state_fullscreen)
3474                 action = fullscreen ?
3475                     prop_atoms.net_wm_state_remove :
3476                     prop_atoms.net_wm_state_add;
3477             else if (state == prop_atoms.net_wm_state_above)
3478                 action = self->above ? prop_atoms.net_wm_state_remove :
3479                     prop_atoms.net_wm_state_add;
3480             else if (state == prop_atoms.net_wm_state_below)
3481                 action = self->below ? prop_atoms.net_wm_state_remove :
3482                     prop_atoms.net_wm_state_add;
3483             else if (state == prop_atoms.net_wm_state_demands_attention)
3484                 action = self->demands_attention ?
3485                     prop_atoms.net_wm_state_remove :
3486                     prop_atoms.net_wm_state_add;
3487             else if (state == prop_atoms.ob_wm_state_undecorated)
3488                 action = undecorated ? prop_atoms.net_wm_state_remove :
3489                     prop_atoms.net_wm_state_add;
3490         }
3491
3492         if (action == prop_atoms.net_wm_state_add) {
3493             if (state == prop_atoms.net_wm_state_modal) {
3494                 modal = TRUE;
3495             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3496                 max_vert = TRUE;
3497             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3498                 max_horz = TRUE;
3499             } else if (state == prop_atoms.net_wm_state_shaded) {
3500                 shaded = TRUE;
3501             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3502                 self->skip_taskbar = TRUE;
3503             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3504                 self->skip_pager = TRUE;
3505             } else if (state == prop_atoms.net_wm_state_hidden) {
3506                 iconic = TRUE;
3507             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3508                 fullscreen = TRUE;
3509             } else if (state == prop_atoms.net_wm_state_above) {
3510                 above = TRUE;
3511                 below = FALSE;
3512             } else if (state == prop_atoms.net_wm_state_below) {
3513                 above = FALSE;
3514                 below = TRUE;
3515             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3516                 demands_attention = TRUE;
3517             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3518                 undecorated = TRUE;
3519             }
3520
3521         } else { /* action == prop_atoms.net_wm_state_remove */
3522             if (state == prop_atoms.net_wm_state_modal) {
3523                 modal = FALSE;
3524             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3525                 max_vert = FALSE;
3526             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3527                 max_horz = FALSE;
3528             } else if (state == prop_atoms.net_wm_state_shaded) {
3529                 shaded = FALSE;
3530             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3531                 self->skip_taskbar = FALSE;
3532             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3533                 self->skip_pager = FALSE;
3534             } else if (state == prop_atoms.net_wm_state_hidden) {
3535                 iconic = FALSE;
3536             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3537                 fullscreen = FALSE;
3538             } else if (state == prop_atoms.net_wm_state_above) {
3539                 above = FALSE;
3540             } else if (state == prop_atoms.net_wm_state_below) {
3541                 below = FALSE;
3542             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3543                 demands_attention = FALSE;
3544             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3545                 undecorated = FALSE;
3546             }
3547         }
3548     }
3549
3550     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3551         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3552             /* toggling both */
3553             if (max_horz == max_vert) { /* both going the same way */
3554                 client_maximize(self, max_horz, 0);
3555             } else {
3556                 client_maximize(self, max_horz, 1);
3557                 client_maximize(self, max_vert, 2);
3558             }
3559         } else {
3560             /* toggling one */
3561             if (max_horz != self->max_horz)
3562                 client_maximize(self, max_horz, 1);
3563             else
3564                 client_maximize(self, max_vert, 2);
3565         }
3566     }
3567     /* change fullscreen state before shading, as it will affect if the window
3568        can shade or not */
3569     if (fullscreen != self->fullscreen)
3570         client_fullscreen(self, fullscreen);
3571     if (shaded != self->shaded)
3572         client_shade(self, shaded);
3573     if (undecorated != self->undecorated)
3574         client_set_undecorated(self, undecorated);
3575     if (above != self->above || below != self->below) {
3576         self->above = above;
3577         self->below = below;
3578         client_calc_layer(self);
3579     }
3580
3581     if (modal != self->modal) {
3582         self->modal = modal;
3583         /* when a window changes modality, then its stacking order with its
3584            transients needs to change */
3585         stacking_raise(CLIENT_AS_WINDOW(self));
3586
3587         /* it also may get focused. if something is focused that shouldn't
3588            be focused anymore, then move the focus */
3589         if (focus_client && client_focus_target(focus_client) != focus_client)
3590             client_focus(focus_client);
3591     }
3592
3593     if (iconic != self->iconic)
3594         client_iconify(self, iconic, FALSE, FALSE);
3595
3596     if (demands_attention != self->demands_attention)
3597         client_hilite(self, demands_attention);
3598
3599     client_change_state(self); /* change the hint to reflect these changes */
3600 }
3601
3602 ObClient *client_focus_target(ObClient *self)
3603 {
3604     ObClient *child = NULL;
3605
3606     child = client_search_modal_child(self);
3607     if (child) return child;
3608     return self;
3609 }
3610
3611 gboolean client_can_focus(ObClient *self)
3612 {
3613     /* choose the correct target */
3614     self = client_focus_target(self);
3615
3616     if (!self->frame->visible)
3617         return FALSE;
3618
3619     if (!(self->can_focus || self->focus_notify))
3620         return FALSE;
3621
3622     return TRUE;
3623 }
3624
3625 gboolean client_focus(ObClient *self)
3626 {
3627     /* we might not focus this window, so if we have modal children which would
3628        be focused instead, bring them to this desktop */
3629     client_bring_modal_windows(self);
3630
3631     /* choose the correct target */
3632     self = client_focus_target(self);
3633
3634     if (!client_can_focus(self)) {
3635         ob_debug_type(OB_DEBUG_FOCUS,
3636                       "Client %s can't be focused\n", self->title);
3637         return FALSE;
3638     }
3639
3640     ob_debug_type(OB_DEBUG_FOCUS,
3641                   "Focusing client \"%s\" (0x%x) at time %u\n",
3642                   self->title, self->window, event_curtime);
3643
3644     /* if using focus_delay, stop the timer now so that focus doesn't
3645        go moving on us */
3646     event_halt_focus_delay();
3647
3648     /* if there is a grab going on, then we need to cancel it. if we move
3649        focus during the grab, applications will get NotifyWhileGrabbed events
3650        and ignore them !
3651
3652        actions should not rely on being able to move focus during an
3653        interactive grab.
3654     */
3655     event_cancel_all_key_grabs();
3656
3657     xerror_set_ignore(TRUE);
3658     xerror_occured = FALSE;
3659
3660     if (self->can_focus) {
3661         /* This can cause a BadMatch error with CurrentTime, or if an app
3662            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3663         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3664                        event_curtime);
3665     }
3666
3667     if (self->focus_notify) {
3668         XEvent ce;
3669         ce.xclient.type = ClientMessage;
3670         ce.xclient.message_type = prop_atoms.wm_protocols;
3671         ce.xclient.display = ob_display;
3672         ce.xclient.window = self->window;
3673         ce.xclient.format = 32;
3674         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3675         ce.xclient.data.l[1] = event_curtime;
3676         ce.xclient.data.l[2] = 0l;
3677         ce.xclient.data.l[3] = 0l;
3678         ce.xclient.data.l[4] = 0l;
3679         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3680     }
3681
3682     xerror_set_ignore(FALSE);
3683
3684     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3685     return !xerror_occured;
3686 }
3687
3688 static void client_present(ObClient *self, gboolean here, gboolean raise,
3689                            gboolean unshade)
3690 {
3691     if (client_normal(self) && screen_showing_desktop)
3692         screen_show_desktop(FALSE, self);
3693     if (self->iconic)
3694         client_iconify(self, FALSE, here, FALSE);
3695     if (self->desktop != DESKTOP_ALL &&
3696         self->desktop != screen_desktop)
3697     {
3698         if (here)
3699             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3700         else
3701             screen_set_desktop(self->desktop, FALSE);
3702     } else if (!self->frame->visible)
3703         /* if its not visible for other reasons, then don't mess
3704            with it */
3705         return;
3706     if (self->shaded && unshade)
3707         client_shade(self, FALSE);
3708     if (raise)
3709         stacking_raise(CLIENT_AS_WINDOW(self));
3710
3711     client_focus(self);
3712 }
3713
3714 void client_activate(ObClient *self, gboolean here, gboolean raise,
3715                      gboolean unshade, gboolean user)
3716 {
3717     client_present(self, here, raise, unshade);
3718 }
3719
3720 static void client_bring_windows_recursive(ObClient *self,
3721                                            guint desktop,
3722                                            gboolean helpers,
3723                                            gboolean modals,
3724                                            gboolean iconic)
3725 {
3726     GSList *it;
3727
3728     for (it = self->transients; it; it = g_slist_next(it))
3729         client_bring_windows_recursive(it->data, desktop,
3730                                        helpers, modals, iconic);
3731
3732     if (((helpers && client_helper(self)) ||
3733          (modals && self->modal)) &&
3734         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3735          (iconic && self->iconic)))
3736     {
3737         if (iconic && self->iconic)
3738             client_iconify(self, FALSE, TRUE, FALSE);
3739         else
3740             client_set_desktop(self, desktop, FALSE, FALSE);
3741     }
3742 }
3743
3744 void client_bring_helper_windows(ObClient *self)
3745 {
3746     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3747 }
3748
3749 void client_bring_modal_windows(ObClient *self)
3750 {
3751     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3752 }
3753
3754 gboolean client_focused(ObClient *self)
3755 {
3756     return self == focus_client;
3757 }
3758
3759 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3760 {
3761     guint i;
3762     gulong min_diff, min_i;
3763
3764     if (!self->nicons) {
3765         ObClientIcon *parent = NULL;
3766         GSList *it;
3767
3768         for (it = self->parents; it; it = g_slist_next(it)) {
3769             ObClient *c = it->data;
3770             if ((parent = client_icon_recursive(c, w, h)))
3771                 break;
3772         }
3773
3774         return parent;
3775     }
3776
3777     /* some kind of crappy approximation to find the icon closest in size to
3778        what we requested, but icons are generally all the same ratio as
3779        eachother so it's good enough. */
3780
3781     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3782     min_i = 0;
3783
3784     for (i = 1; i < self->nicons; ++i) {
3785         gulong diff;
3786
3787         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3788         if (diff < min_diff) {
3789             min_diff = diff;
3790             min_i = i;
3791         }
3792     }
3793     return &self->icons[min_i];
3794 }
3795
3796 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3797 {
3798     ObClientIcon *ret;
3799     static ObClientIcon deficon;
3800
3801     if (!(ret = client_icon_recursive(self, w, h))) {
3802         deficon.width = deficon.height = 48;
3803         deficon.data = ob_rr_theme->def_win_icon;
3804         ret = &deficon;
3805     }
3806     return ret;
3807 }
3808
3809 void client_set_layer(ObClient *self, gint layer)
3810 {
3811     if (layer < 0) {
3812         self->below = TRUE;
3813         self->above = FALSE;
3814     } else if (layer == 0) {
3815         self->below = self->above = FALSE;
3816     } else {
3817         self->below = FALSE;
3818         self->above = TRUE;
3819     }
3820     client_calc_layer(self);
3821     client_change_state(self); /* reflect this in the state hints */
3822 }
3823
3824 void client_set_undecorated(ObClient *self, gboolean undecorated)
3825 {
3826     if (self->undecorated != undecorated &&
3827         /* don't let it undecorate if the function is missing, but let
3828            it redecorate */
3829         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3830     {
3831         self->undecorated = undecorated;
3832         client_setup_decor_and_functions(self, TRUE);
3833         client_change_state(self); /* reflect this in the state hints */
3834     }
3835 }
3836
3837 guint client_monitor(ObClient *self)
3838 {
3839     return screen_find_monitor(&self->frame->area);
3840 }
3841
3842 ObClient *client_direct_parent(ObClient *self)
3843 {
3844     if (!self->parents) return NULL;
3845     if (self->transient_for_group) return NULL;
3846     return self->parents->data;
3847 }
3848
3849 ObClient *client_search_top_direct_parent(ObClient *self)
3850 {
3851     ObClient *p;
3852     while ((p = client_direct_parent(self))) self = p;
3853     return self;
3854 }
3855
3856 static GSList *client_search_all_top_parents_internal(ObClient *self,
3857                                                       gboolean bylayer,
3858                                                       ObStackingLayer layer)
3859 {
3860     GSList *ret;
3861     ObClient *p;
3862
3863     /* move up the direct transient chain as far as possible */
3864     while ((p = client_direct_parent(self)) &&
3865            (!bylayer || p->layer == layer))
3866         self = p;
3867
3868     if (!self->parents)
3869         ret = g_slist_prepend(NULL, self);
3870     else
3871         ret = g_slist_copy(self->parents);
3872
3873     return ret;
3874 }
3875
3876 GSList *client_search_all_top_parents(ObClient *self)
3877 {
3878     return client_search_all_top_parents_internal(self, FALSE, 0);
3879 }
3880
3881 GSList *client_search_all_top_parents_layer(ObClient *self)
3882 {
3883     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3884 }
3885
3886 ObClient *client_search_focus_parent(ObClient *self)
3887 {
3888     GSList *it;
3889
3890     for (it = self->parents; it; it = g_slist_next(it))
3891         if (client_focused(it->data)) return it->data;
3892
3893     return NULL;
3894 }
3895
3896 ObClient *client_search_parent(ObClient *self, ObClient *search)
3897 {
3898     GSList *it;
3899
3900     for (it = self->parents; it; it = g_slist_next(it))
3901         if (it->data == search) return search;
3902
3903     return NULL;
3904 }
3905
3906 ObClient *client_search_transient(ObClient *self, ObClient *search)
3907 {
3908     GSList *sit;
3909
3910     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3911         if (sit->data == search)
3912             return search;
3913         if (client_search_transient(sit->data, search))
3914             return search;
3915     }
3916     return NULL;
3917 }
3918
3919 static void detect_edge(Rect area, ObDirection dir,
3920                         gint my_head, gint my_size,
3921                         gint my_edge_start, gint my_edge_size,
3922                         gint *dest, gboolean *near_edge)
3923 {
3924     gint edge_start, edge_size, head, tail;
3925     gboolean skip_head = FALSE, skip_tail = FALSE;
3926
3927     switch (dir) {
3928         case OB_DIRECTION_NORTH:
3929         case OB_DIRECTION_SOUTH:
3930             edge_start = area.x;
3931             edge_size = area.width;
3932             break;
3933         case OB_DIRECTION_EAST:
3934         case OB_DIRECTION_WEST:
3935             edge_start = area.y;
3936             edge_size = area.height;
3937             break;
3938         default:
3939             g_assert_not_reached();
3940     }
3941
3942     /* do we collide with this window? */
3943     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
3944                 edge_start, edge_size))
3945         return;
3946
3947     switch (dir) {
3948         case OB_DIRECTION_NORTH:
3949             head = RECT_BOTTOM(area);
3950             tail = RECT_TOP(area);
3951             break;
3952         case OB_DIRECTION_SOUTH:
3953             head = RECT_TOP(area);
3954             tail = RECT_BOTTOM(area);
3955             break;
3956         case OB_DIRECTION_WEST:
3957             head = RECT_RIGHT(area);
3958             tail = RECT_LEFT(area);
3959             break;
3960         case OB_DIRECTION_EAST:
3961             head = RECT_LEFT(area);
3962             tail = RECT_RIGHT(area);
3963             break;
3964         default:
3965             g_assert_not_reached();
3966     }
3967     switch (dir) {
3968         case OB_DIRECTION_NORTH:
3969         case OB_DIRECTION_WEST:
3970             /* check if our window is past the head of this window */
3971             if (my_head <= head + 1)
3972                 skip_head = TRUE;
3973             /* check if our window's tail is past the tail of this window */
3974             if (my_head + my_size - 1 <= tail)
3975                 skip_tail = TRUE;
3976             /* check if the head of this window is closer than the previously
3977                chosen edge (take into account that the previously chosen
3978                edge might have been a tail, not a head) */
3979             if (head + (*near_edge ? 0 : my_size) < *dest)
3980                 skip_head = TRUE;
3981             /* check if the tail of this window is closer than the previously
3982                chosen edge (take into account that the previously chosen
3983                edge might have been a head, not a tail) */
3984             if (tail - (!*near_edge ? 0 : my_size) < *dest)
3985                 skip_tail = TRUE;
3986             break;
3987         case OB_DIRECTION_SOUTH:
3988         case OB_DIRECTION_EAST:
3989             /* check if our window is past the head of this window */
3990             if (my_head >= head - 1)
3991                 skip_head = TRUE;
3992             /* check if our window's tail is past the tail of this window */
3993             if (my_head - my_size + 1 >= tail)
3994                 skip_tail = TRUE;
3995             /* check if the head of this window is closer than the previously
3996                chosen edge (take into account that the previously chosen
3997                edge might have been a tail, not a head) */
3998             if (head - (*near_edge ? 0 : my_size) > *dest)
3999                 skip_head = TRUE;
4000             /* check if the tail of this window is closer than the previously
4001                chosen edge (take into account that the previously chosen
4002                edge might have been a head, not a tail) */
4003             if (tail + (!*near_edge ? 0 : my_size) > *dest)
4004                 skip_tail = TRUE;
4005             break;
4006         default:
4007             g_assert_not_reached();
4008     }
4009
4010     ob_debug("my head %d size %d\n", my_head, my_size);
4011     ob_debug("head %d tail %d deest %d\n", head, tail, *dest);
4012     if (!skip_head) {
4013         ob_debug("using near edge %d\n", head);
4014         *dest = head;
4015         *near_edge = TRUE;
4016     }
4017     else if (!skip_tail) {
4018         ob_debug("using far edge %d\n", tail);
4019         *dest = tail;
4020         *near_edge = FALSE;
4021     }
4022 }
4023
4024 void client_find_edge_directional(ObClient *self, ObDirection dir,
4025                                   gint my_head, gint my_size,
4026                                   gint my_edge_start, gint my_edge_size,
4027                                   gint *dest, gboolean *near_edge)
4028 {
4029     GList *it;
4030     Rect *a, *mon;
4031     Rect dock_area;
4032     gint edge;
4033
4034     a = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS,
4035                     &self->frame->area);
4036     mon = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR,
4037                       &self->frame->area);
4038
4039     switch (dir) {
4040     case OB_DIRECTION_NORTH:
4041         if (my_head >= RECT_TOP(*mon) + 1)
4042             edge = RECT_TOP(*mon) - 1;
4043         else
4044             edge = RECT_TOP(*a) - 1;
4045         break;
4046     case OB_DIRECTION_SOUTH:
4047         if (my_head <= RECT_BOTTOM(*mon) - 1)
4048             edge = RECT_BOTTOM(*mon) + 1;
4049         else
4050             edge = RECT_BOTTOM(*a) + 1;
4051         break;
4052     case OB_DIRECTION_EAST:
4053         if (my_head <= RECT_RIGHT(*mon) - 1)
4054             edge = RECT_RIGHT(*mon) + 1;
4055         else
4056             edge = RECT_RIGHT(*a) + 1;
4057         break;
4058     case OB_DIRECTION_WEST:
4059         if (my_head >= RECT_LEFT(*mon) + 1)
4060             edge = RECT_LEFT(*mon) - 1;
4061         else
4062             edge = RECT_LEFT(*a) - 1;
4063         break;
4064     default:
4065         g_assert_not_reached();
4066     }
4067     /* default to the far edge, then narrow it down */
4068     *dest = edge;
4069     *near_edge = TRUE;
4070
4071     for (it = client_list; it; it = g_list_next(it)) {
4072         ObClient *cur = it->data;
4073
4074         /* skip windows to not bump into */
4075         if (cur == self)
4076             continue;
4077         if (cur->iconic)
4078             continue;
4079         if (self->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&
4080             cur->desktop != screen_desktop)
4081             continue;
4082
4083         ob_debug("trying window %s\n", cur->title);
4084
4085         detect_edge(cur->frame->area, dir, my_head, my_size, my_edge_start,
4086                     my_edge_size, dest, near_edge);
4087     }
4088     dock_get_area(&dock_area);
4089     detect_edge(dock_area, dir, my_head, my_size, my_edge_start,
4090                 my_edge_size, dest, near_edge);
4091     g_free(a);
4092     g_free(mon);
4093 }
4094
4095 void client_find_move_directional(ObClient *self, ObDirection dir,
4096                                   gint *x, gint *y)
4097 {
4098     gint head, size;
4099     gint e, e_start, e_size;
4100     gboolean near;
4101
4102     switch (dir) {
4103     case OB_DIRECTION_EAST:
4104         head = RECT_RIGHT(self->frame->area);
4105         size = self->frame->area.width;
4106         e_start = RECT_TOP(self->frame->area);
4107         e_size = self->frame->area.height;
4108         break;
4109     case OB_DIRECTION_WEST:
4110         head = RECT_LEFT(self->frame->area);
4111         size = self->frame->area.width;
4112         e_start = RECT_TOP(self->frame->area);
4113         e_size = self->frame->area.height;
4114         break;
4115     case OB_DIRECTION_NORTH:
4116         head = RECT_TOP(self->frame->area);
4117         size = self->frame->area.height;
4118         e_start = RECT_LEFT(self->frame->area);
4119         e_size = self->frame->area.width;
4120         break;
4121     case OB_DIRECTION_SOUTH:
4122         head = RECT_BOTTOM(self->frame->area);
4123         size = self->frame->area.height;
4124         e_start = RECT_LEFT(self->frame->area);
4125         e_size = self->frame->area.width;
4126         break;
4127     default:
4128         g_assert_not_reached();
4129     }
4130
4131     client_find_edge_directional(self, dir, head, size,
4132                                  e_start, e_size, &e, &near);
4133     *x = self->frame->area.x;
4134     *y = self->frame->area.y;
4135     switch (dir) {
4136     case OB_DIRECTION_EAST:
4137         if (near) e -= self->frame->area.width;
4138         else      e++;
4139         *x = e;
4140         break;
4141     case OB_DIRECTION_WEST:
4142         if (near) e++;
4143         else      e -= self->frame->area.width;
4144         *x = e;
4145         break;
4146     case OB_DIRECTION_NORTH:
4147         if (near) e++;
4148         else      e -= self->frame->area.height;
4149         *y = e;
4150         break;
4151     case OB_DIRECTION_SOUTH:
4152         if (near) e -= self->frame->area.height;
4153         else      e++;
4154         *y = e;
4155         break;
4156     default:
4157         g_assert_not_reached();
4158     }
4159     frame_frame_gravity(self->frame, x, y);
4160 }
4161
4162 void client_find_resize_directional(ObClient *self, ObDirection side,
4163                                     gboolean grow,
4164                                     gint *x, gint *y, gint *w, gint *h)
4165 {
4166     gint head;
4167     gint e, e_start, e_size, delta;
4168     gboolean near;
4169     ObDirection dir;
4170
4171     switch (side) {
4172     case OB_DIRECTION_EAST:
4173         head = RECT_RIGHT(self->frame->area) +
4174             (self->size_inc.width - 1) * (grow ? 1 : -1);
4175         e_start = RECT_TOP(self->frame->area);
4176         e_size = self->frame->area.height;
4177         dir = grow ? OB_DIRECTION_EAST : OB_DIRECTION_WEST;
4178         break;
4179     case OB_DIRECTION_WEST:
4180         head = RECT_LEFT(self->frame->area) -
4181             (self->size_inc.width - 1) * (grow ? 1 : -1);
4182         e_start = RECT_TOP(self->frame->area);
4183         e_size = self->frame->area.height;
4184         dir = grow ? OB_DIRECTION_WEST : OB_DIRECTION_EAST;
4185         break;
4186     case OB_DIRECTION_NORTH:
4187         head = RECT_TOP(self->frame->area) -
4188             (self->size_inc.height - 1) * (grow ? 1 : -1);
4189         e_start = RECT_LEFT(self->frame->area);
4190         e_size = self->frame->area.width;
4191         dir = grow ? OB_DIRECTION_NORTH : OB_DIRECTION_SOUTH;
4192         break;
4193     case OB_DIRECTION_SOUTH:
4194         head = RECT_BOTTOM(self->frame->area) +
4195             (self->size_inc.height - 1) * (grow ? 1 : -1);
4196         e_start = RECT_LEFT(self->frame->area);
4197         e_size = self->frame->area.width;
4198         dir = grow ? OB_DIRECTION_SOUTH : OB_DIRECTION_NORTH;
4199         break;
4200     default:
4201         g_assert_not_reached();
4202     }
4203
4204     ob_debug("head %d dir %d\n", head, dir);
4205     client_find_edge_directional(self, dir, head, 1,
4206                                  e_start, e_size, &e, &near);
4207     ob_debug("edge %d\n", e);
4208     *x = self->frame->area.x;
4209     *y = self->frame->area.y;
4210     *w = self->frame->area.width;
4211     *h = self->frame->area.height;
4212     switch (side) {
4213     case OB_DIRECTION_EAST:
4214         if (grow == near) --e;
4215         delta = e - RECT_RIGHT(self->frame->area);
4216         *w += delta;
4217         break;
4218     case OB_DIRECTION_WEST:
4219         if (grow == near) ++e;
4220         delta = RECT_LEFT(self->frame->area) - e;
4221         *x -= delta;
4222         *w += delta;
4223         break;
4224     case OB_DIRECTION_NORTH:
4225         if (grow == near) ++e;
4226         delta = RECT_TOP(self->frame->area) - e;
4227         *y -= delta;
4228         *h += delta;
4229         break;
4230     case OB_DIRECTION_SOUTH:
4231         if (grow == near) --e;
4232         delta = e - RECT_BOTTOM(self->frame->area);
4233         *h += delta;
4234         break;
4235     default:
4236         g_assert_not_reached();
4237     }
4238     frame_frame_gravity(self->frame, x, y);
4239     *w -= self->frame->size.left + self->frame->size.right;
4240     *h -= self->frame->size.top + self->frame->size.bottom;
4241 }
4242
4243 ObClient* client_under_pointer(void)
4244 {
4245     gint x, y;
4246     GList *it;
4247     ObClient *ret = NULL;
4248
4249     if (screen_pointer_pos(&x, &y)) {
4250         for (it = stacking_list; it; it = g_list_next(it)) {
4251             if (WINDOW_IS_CLIENT(it->data)) {
4252                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4253                 if (c->frame->visible &&
4254                     /* check the desktop, this is done during desktop
4255                        switching and windows are shown/hidden status is not
4256                        reliable */
4257                     (c->desktop == screen_desktop ||
4258                      c->desktop == DESKTOP_ALL) &&
4259                     /* ignore all animating windows */
4260                     !frame_iconify_animating(c->frame) &&
4261                     RECT_CONTAINS(c->frame->area, x, y))
4262                 {
4263                     ret = c;
4264                     break;
4265                 }
4266             }
4267         }
4268     }
4269     return ret;
4270 }
4271
4272 gboolean client_has_group_siblings(ObClient *self)
4273 {
4274     return self->group && self->group->members->next;
4275 }