openbox/client.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    client.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "client.h"
  21 #include "debug.h"
  22 #include "startupnotify.h"
  23 #include "dock.h"
  24 #include "xerror.h"
  25 #include "screen.h"
  26 #include "moveresize.h"
  27 #include "place.h"
  28 #include "prop.h"
  29 #include "extensions.h"
  30 #include "frame.h"
  31 #include "session.h"
  32 #include "event.h"
  33 #include "grab.h"
  34 #include "focus.h"
  35 #include "propwin.h"
  36 #include "stacking.h"
  37 #include "openbox.h"
  38 #include "group.h"
  39 #include "config.h"
  40 #include "menuframe.h"
  41 #include "keyboard.h"
  42 #include "mouse.h"
  43 #include "render/render.h"
  44
  45 #ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 #endif
  48
  49 #include <glib.h>
  50 #include <X11/Xutil.h>
  51
  52 /*! The event mask to grab on client windows */
  53 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  54                           ColormapChangeMask)
  55
  56 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  57                                 ButtonMotionMask)
  58
  59 typedef struct
  60 {
  61     ObClientCallback func;
  62     gpointer data;
  63 } ClientCallback;
  64
  65 GList            *client_list          = NULL;
  66
  67 static GSList *client_destroy_notifies = NULL;
  68
  69 static void client_get_all(ObClient *self, gboolean real);
  70 static void client_get_startup_id(ObClient *self);
  71 static void client_get_session_ids(ObClient *self);
  72 static void client_get_area(ObClient *self);
  73 static void client_get_desktop(ObClient *self);
  74 static void client_get_state(ObClient *self);
  75 static void client_get_shaped(ObClient *self);
  76 static void client_get_mwm_hints(ObClient *self);
  77 static void client_get_colormap(ObClient *self);
  78 static void client_change_allowed_actions(ObClient *self);
  79 static void client_change_state(ObClient *self);
  80 static void client_change_wm_state(ObClient *self);
  81 static void client_apply_startup_state(ObClient *self,
  82                                        gint x, gint y, gint w, gint h);
  83 static void client_restore_session_state(ObClient *self);
  84 static gboolean client_restore_session_stacking(ObClient *self);
  85 static ObAppSettings *client_get_settings_state(ObClient *self);
  86 static void client_update_transient_tree(ObClient *self,
  87                                          ObGroup *oldgroup, ObGroup *newgroup,
  88                                          gboolean oldgtran, gboolean newgtran,
  89                                          ObClient* oldparent,
  90                                          ObClient *newparent);
  91 static void client_present(ObClient *self, gboolean here, gboolean raise);
  92 static GSList *client_search_all_top_parents_internal(ObClient *self,
  93                                                       gboolean bylayer,
  94                                                       ObStackingLayer layer);
  95 static void client_call_notifies(ObClient *self, GSList *list);
  96
  97
  98 void client_startup(gboolean reconfig)
  99 {
 100     if (reconfig) return;
 101
 102     client_set_list();
 103 }
 104
 105 void client_shutdown(gboolean reconfig)
 106 {
 107     if (reconfig) return;
 108 }
 109
 110 static void client_call_notifies(ObClient *self, GSList *list)
 111 {
 112     GSList *it;
 113
 114     for (it = list; it; it = g_slist_next(it)) {
 115         ClientCallback *d = it->data;
 116         d->func(self, d->data);
 117     }
 118 }
 119
 120 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 121 {
 122     ClientCallback *d = g_new(ClientCallback, 1);
 123     d->func = func;
 124     d->data = data;
 125     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 126 }
 127
 128 void client_remove_destroy_notify(ObClientCallback func)
 129 {
 130     GSList *it;
 131
 132     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 133         ClientCallback *d = it->data;
 134         if (d->func == func) {
 135             g_free(d);
 136             client_destroy_notifies =
 137                 g_slist_delete_link(client_destroy_notifies, it);
 138             break;
 139         }
 140     }
 141 }
 142
 143 void client_set_list()
 144 {
 145     Window *windows, *win_it;
 146     GList *it;
 147     guint size = g_list_length(client_list);
 148
 149     /* create an array of the window ids */
 150     if (size > 0) {
 151         windows = g_new(Window, size);
 152         win_it = windows;
 153         for (it = client_list; it; it = g_list_next(it), ++win_it)
 154             *win_it = ((ObClient*)it->data)->window;
 155     } else
 156         windows = NULL;
 157
 158     PROP_SETA32(RootWindow(ob_display, ob_screen),
 159                 net_client_list, window, (gulong*)windows, size);
 160
 161     if (windows)
 162         g_free(windows);
 163
 164     stacking_set_list();
 165 }
 166
 167 void client_manage_all()
 168 {
 169     guint i, j, nchild;
 170     Window w, *children;
 171     XWMHints *wmhints;
 172     XWindowAttributes attrib;
 173
 174     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 175                &w, &w, &children, &nchild);
 176
 177     /* remove all icon windows from the list */
 178     for (i = 0; i < nchild; i++) {
 179         if (children[i] == None) continue;
 180         wmhints = XGetWMHints(ob_display, children[i]);
 181         if (wmhints) {
 182             if ((wmhints->flags & IconWindowHint) &&
 183                 (wmhints->icon_window != children[i]))
 184                 for (j = 0; j < nchild; j++)
 185                     if (children[j] == wmhints->icon_window) {
 186                         children[j] = None;
 187                         break;
 188                     }
 189             XFree(wmhints);
 190         }
 191     }
 192
 193     for (i = 0; i < nchild; ++i) {
 194         if (children[i] == None)
 195             continue;
 196         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 197             if (attrib.override_redirect) continue;
 198
 199             if (attrib.map_state != IsUnmapped)
 200                 client_manage(children[i]);
 201         }
 202     }
 203     XFree(children);
 204 }
 205
 206 void client_manage(Window window)
 207 {
 208     ObClient *self;
 209     XEvent e;
 210     XWindowAttributes attrib;
 211     XSetWindowAttributes attrib_set;
 212     XWMHints *wmhint;
 213     gboolean activate = FALSE;
 214     ObAppSettings *settings;
 215     gint placex, placey, placew, placeh;
 216     gboolean transient = FALSE;
 217
 218     grab_server(TRUE);
 219
 220     /* check if it has already been unmapped by the time we started
 221        mapping. the grab does a sync so we don't have to here */
 222     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 223         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 224     {
 225         XPutBackEvent(ob_display, &e);
 226
 227         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 228         grab_server(FALSE);
 229         return; /* don't manage it */
 230     }
 231
 232     /* make sure it isn't an override-redirect window */
 233     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 234         attrib.override_redirect)
 235     {
 236         grab_server(FALSE);
 237         return; /* don't manage it */
 238     }
 239
 240     /* is the window a docking app */
 241     if ((wmhint = XGetWMHints(ob_display, window))) {
 242         if ((wmhint->flags & StateHint) &&
 243             wmhint->initial_state == WithdrawnState)
 244         {
 245             dock_add(window, wmhint);
 246             grab_server(FALSE);
 247             XFree(wmhint);
 248             return;
 249         }
 250         XFree(wmhint);
 251     }
 252
 253     ob_debug("Managing window: 0x%lx\n", window);
 254
 255     /* choose the events we want to receive on the CLIENT window */
 256     attrib_set.event_mask = CLIENT_EVENTMASK;
 257     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 258     XChangeWindowAttributes(ob_display, window,
 259                             CWEventMask|CWDontPropagate, &attrib_set);
 260
 261     /* create the ObClient struct, and populate it from the hints on the
 262        window */
 263     self = g_new0(ObClient, 1);
 264     self->obwin.type = Window_Client;
 265     self->window = window;
 266
 267     /* non-zero defaults */
 268     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 269     self->gravity = NorthWestGravity;
 270     self->desktop = screen_num_desktops; /* always an invalid value */
 271     self->user_time = focus_client ? focus_client->user_time : CurrentTime;
 272
 273     /* get all the stuff off the window */
 274     client_get_all(self, TRUE);
 275
 276     /* specify that if we exit, the window should not be destroyed and
 277        should be reparented back to root automatically */
 278     XChangeSaveSet(ob_display, window, SetModeInsert);
 279
 280     /* create the decoration frame for the client window */
 281     self->frame = frame_new(self);
 282
 283     frame_grab_client(self->frame);
 284
 285     /* we've grabbed everything and set everything that we need to at mapping
 286        time now */
 287     grab_server(FALSE);
 288
 289     /* per-app settings override stuff from client_get_all, and return the
 290        settings for other uses too. the returned settings is a shallow copy,
 291        that needs to be freed with g_free(). */
 292     settings = client_get_settings_state(self);
 293     /* the session should get the last say though */
 294     client_restore_session_state(self);
 295
 296     /* now we have all of the window's information so we can set this up */
 297     client_setup_decor_and_functions(self, FALSE);
 298
 299     {
 300         Time t = sn_app_started(self->startup_id, self->class);
 301         if (t) self->user_time = t;
 302     }
 303
 304     /* do this after we have a frame.. it uses the frame to help determine the
 305        WM_STATE to apply. */
 306     client_change_state(self);
 307
 308     /* add ourselves to the focus order */
 309     focus_order_add_new(self);
 310
 311     /* do this to add ourselves to the stacking list in a non-intrusive way */
 312     client_calc_layer(self);
 313
 314     /* focus the new window? */
 315     if (ob_state() != OB_STATE_STARTING &&
 316         (!self->session || self->session->focused) &&
 317         /* this means focus=true for window is same as config_focus_new=true */
 318         ((config_focus_new || (settings && settings->focus == 1)) ||
 319          client_search_focus_tree_full(self)) &&
 320         /* this checks for focus=false for the window */
 321         (!settings || settings->focus != 0) &&
 322         focus_valid_target(self, FALSE, TRUE, FALSE, FALSE))
 323     {
 324         activate = TRUE;
 325     }
 326
 327     /* remove the client's border */
 328     XSetWindowBorderWidth(ob_display, self->window, 0);
 329
 330     /* adjust the frame to the client's size before showing or placing
 331        the window */
 332     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 333     frame_adjust_client_area(self->frame);
 334
 335     /* where the frame was placed is where the window was originally */
 336     placex = self->area.x;
 337     placey = self->area.y;
 338     placew = self->area.width;
 339     placeh = self->area.height;
 340
 341     /* figure out placement for the window if the window is new */
 342     if (ob_state() == OB_STATE_RUNNING) {
 343         ob_debug("Positioned: %s @ %d %d\n",
 344                  (!self->positioned ? "no" :
 345                   (self->positioned == PPosition ? "program specified" :
 346                    (self->positioned == USPosition ? "user specified" :
 347                     (self->positioned == (PPosition | USPosition) ?
 348                      "program + user specified" :
 349                      "BADNESS !?")))), placex, placey);
 350
 351         ob_debug("Sized: %s @ %d %d\n",
 352                  (!self->sized ? "no" :
 353                   (self->sized == PSize ? "program specified" :
 354                    (self->sized == USSize ? "user specified" :
 355                     (self->sized == (PSize | USSize) ?
 356                      "program + user specified" :
 357                      "BADNESS !?")))), placew, placeh);
 358
 359         /* splash screens are also returned as TRUE for transient,
 360            and so will be forced on screen below */
 361         transient = place_client(self, &placex, &placey, settings);
 362
 363         /* make sure the window is visible. */
 364         client_find_onscreen(self, &placex, &placey, placew, placeh,
 365                              /* non-normal clients has less rules, and
 366                                 windows that are being restored from a
 367                                 session do also. we can assume you want
 368                                 it back where you saved it. Clients saying
 369                                 they placed themselves are subjected to
 370                                 harder rules, ones that are placed by
 371                                 place.c or by the user are allowed partially
 372                                 off-screen and on xinerama divides (ie,
 373                                 it is up to the placement routines to avoid
 374                                 the xinerama divides)
 375
 376                                 splash screens get "transient" set to TRUE by
 377                                 the place_client call
 378                              */
 379                              ob_state() == OB_STATE_RUNNING &&
 380                              (transient ||
 381                               (!(self->positioned & USPosition) &&
 382                                client_normal(self) &&
 383                                !self->session)));
 384     }
 385
 386     /* if the window isn't user-sized, then make it fit inside
 387        the visible screen area on its monitor. Use basically the same rules
 388        for forcing the window on screen in the client_find_onscreen call.
 389
 390        do this after place_client, it chooses the monitor!
 391
 392        splash screens get "transient" set to TRUE by
 393        the place_client call
 394     */
 395     if (ob_state() == OB_STATE_RUNNING &&
 396         (transient ||
 397          (!(self->sized & USSize) &&
 398           client_normal(self) &&
 399           !self->session)))
 400     {
 401         Rect placer;
 402
 403         RECT_SET(placer, placex, placey, placew, placeh);
 404         frame_rect_to_frame(self->frame, &placer);
 405
 406         Rect *a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &placer);
 407
 408         /* shrink by the frame's area */
 409         a->width -= self->frame->size.left + self->frame->size.right;
 410         a->height -= self->frame->size.top + self->frame->size.bottom;
 411
 412         /* fit the window inside the area */
 413         if (placew > a->width || self->area.height > a->height) {
 414             placew = MIN(self->area.width, a->width);
 415             placeh = MIN(self->area.height, a->height);
 416
 417             ob_debug("setting window size to %dx%d\n",
 418                      self->area.width, self->area.height);
 419         }
 420         g_free(a);
 421     }
 422
 423
 424     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 425              "some restrictions may apply\n",
 426              self->window, placex, placey, placew, placeh);
 427     if (self->session)
 428         ob_debug("  but session requested %d, %d  %d x %d instead, "
 429                  "overriding\n",
 430                  self->session->x, self->session->y,
 431                  self->session->w, self->session->h);
 432
 433     /* do this after the window is placed, so the premax/prefullscreen numbers
 434        won't be all wacko!!
 435
 436        this also places the window
 437     */
 438     client_apply_startup_state(self, placex, placey, placew, placeh);
 439
 440     if (activate) {
 441         guint32 last_time = focus_client ?
 442             focus_client->user_time : CurrentTime;
 443
 444         /* This is focus stealing prevention */
 445         ob_debug_type(OB_DEBUG_FOCUS,
 446                       "Want to focus new window 0x%x with time %u "
 447                       "(last time %u)\n",
 448                       self->window, self->user_time, last_time);
 449
 450         /* if it's on another desktop */
 451         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 452             && /* the timestamp is from before you changed desktops */
 453             self->user_time && screen_desktop_user_time &&
 454             !event_time_after(self->user_time, screen_desktop_user_time))
 455         {
 456             activate = FALSE;
 457             ob_debug_type(OB_DEBUG_FOCUS,
 458                           "Not focusing the window because its on another "
 459                           "desktop\n");
 460         }
 461         /* If something is focused, and it's not our relative... */
 462         else if (focus_client && client_search_focus_tree_full(self) == NULL &&
 463                  client_search_focus_group_full(self) == NULL)
 464         {
 465             /* If time stamp is old, don't steal focus */
 466             if (self->user_time && last_time &&
 467                 !event_time_after(self->user_time, last_time))
 468             {
 469                 activate = FALSE;
 470                 ob_debug_type(OB_DEBUG_FOCUS,
 471                               "Not focusing the window because the time is "
 472                               "too old\n");
 473             }
 474             /* If its a transient (and parents aren't focused) and the time
 475                is ambiguous (either the current focus target doesn't have
 476                a timestamp, or they are the same (we probably inherited it
 477                from them) */
 478             else if (client_has_parent(self) &&
 479                      (!last_time || self->user_time == last_time))
 480             {
 481                 activate = FALSE;
 482                 ob_debug_type(OB_DEBUG_FOCUS,
 483                               "Not focusing the window because it is a "
 484                               "transient, and the time is very ambiguous\n");
 485             }
 486             /* Don't steal focus from globally active clients.
 487                I stole this idea from KWin. It seems nice.
 488              */
 489             else if (!(focus_client->can_focus ||
 490                        focus_client->focus_notify))
 491             {
 492                 activate = FALSE;
 493                 ob_debug_type(OB_DEBUG_FOCUS,
 494                               "Not focusing the window because a globally "
 495                               "active client has focus\n");
 496             }
 497             /* Don't move focus if it's not going to go to this window
 498                anyway */
 499             else if (client_focus_target(self) != self) {
 500                 activate = FALSE;
 501                 ob_debug_type(OB_DEBUG_FOCUS,
 502                               "Not focusing the window because another window "
 503                               "would get the focus anyway\n");
 504             }
 505         }
 506
 507         if (!activate) {
 508             ob_debug_type(OB_DEBUG_FOCUS,
 509                           "Focus stealing prevention activated for %s with "
 510                           "time %u (last time %u)\n",
 511                           self->title, self->user_time, last_time);
 512             /* if the client isn't focused, then hilite it so the user
 513                knows it is there */
 514             client_hilite(self, TRUE);
 515         }
 516     }
 517     else {
 518         /* This may look rather odd. Well it's because new windows are added
 519            to the stacking order non-intrusively. If we're not going to focus
 520            the new window or hilite it, then we raise it to the top. This will
 521            take affect for things that don't get focused like splash screens.
 522            Also if you don't have focus_new enabled, then it's going to get
 523            raised to the top. Legacy begets legacy I guess?
 524         */
 525         if (!client_restore_session_stacking(self))
 526             stacking_raise(CLIENT_AS_WINDOW(self));
 527     }
 528
 529     mouse_grab_for_client(self, TRUE);
 530
 531     /* this has to happen before we try focus the window, but we want it to
 532        happen after the client's stacking has been determined or it looks bad
 533     */
 534     {
 535         gulong ignore_start;
 536         if (!config_focus_under_mouse)
 537             ignore_start = event_start_ignore_all_enters();
 538
 539         client_show(self);
 540
 541         if (!config_focus_under_mouse)
 542             event_end_ignore_all_enters(ignore_start);
 543     }
 544
 545     if (activate) {
 546         gboolean stacked = client_restore_session_stacking(self);
 547         client_present(self, FALSE, !stacked);
 548     }
 549
 550     /* add to client list/map */
 551     client_list = g_list_append(client_list, self);
 552     g_hash_table_insert(window_map, &self->window, self);
 553
 554     /* this has to happen after we're in the client_list */
 555     if (STRUT_EXISTS(self->strut))
 556         screen_update_areas();
 557
 558     /* update the list hints */
 559     client_set_list();
 560
 561     /* free the ObAppSettings shallow copy */
 562     g_free(settings);
 563
 564     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 565              window, self->frame->window, self->class);
 566
 567     return;
 568 }
 569
 570
 571 ObClient *client_fake_manage(Window window)
 572 {
 573     ObClient *self;
 574     ObAppSettings *settings;
 575
 576     ob_debug("Pretend-managing window: %lx\n", window);
 577
 578     /* do this minimal stuff to figure out the client's decorations */
 579
 580     self = g_new0(ObClient, 1);
 581     self->window = window;
 582
 583     client_get_all(self, FALSE);
 584     /* per-app settings override stuff, and return the settings for other
 585        uses too. this returns a shallow copy that needs to be freed */
 586     settings = client_get_settings_state(self);
 587
 588     client_setup_decor_and_functions(self, FALSE);
 589
 590     /* create the decoration frame for the client window and adjust its size */
 591     self->frame = frame_new(self);
 592     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 593
 594     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 595              self->frame->size.left, self->frame->size.right,
 596              self->frame->size.top, self->frame->size.bottom);
 597
 598     /* free the ObAppSettings shallow copy */
 599     g_free(settings);
 600
 601     return self;
 602 }
 603
 604 void client_unmanage_all()
 605 {
 606     while (client_list != NULL)
 607         client_unmanage(client_list->data);
 608 }
 609
 610 void client_unmanage(ObClient *self)
 611 {
 612     guint j;
 613     GSList *it;
 614     gulong ignore_start;
 615
 616     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 617              self->window, self->frame->window,
 618              self->class, self->title ? self->title : "");
 619
 620     g_assert(self != NULL);
 621
 622     /* we dont want events no more. do this before hiding the frame so we
 623        don't generate more events */
 624     XSelectInput(ob_display, self->window, NoEventMask);
 625
 626     /* ignore enter events from the unmap so it doesnt mess with the focus */
 627     if (!config_focus_under_mouse)
 628         ignore_start = event_start_ignore_all_enters();
 629
 630     frame_hide(self->frame);
 631     /* flush to send the hide to the server quickly */
 632     XFlush(ob_display);
 633
 634     if (!config_focus_under_mouse)
 635         event_end_ignore_all_enters(ignore_start);
 636
 637     mouse_grab_for_client(self, FALSE);
 638
 639     /* remove the window from our save set */
 640     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 641
 642     /* kill the property windows */
 643     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 644
 645     /* update the focus lists */
 646     focus_order_remove(self);
 647     if (client_focused(self)) {
 648         /* don't leave an invalid focus_client */
 649         focus_client = NULL;
 650     }
 651
 652     client_list = g_list_remove(client_list, self);
 653     stacking_remove(self);
 654     g_hash_table_remove(window_map, &self->window);
 655
 656     /* once the client is out of the list, update the struts to remove its
 657        influence */
 658     if (STRUT_EXISTS(self->strut))
 659         screen_update_areas();
 660
 661     client_call_notifies(self, client_destroy_notifies);
 662
 663     /* tell our parent(s) that we're gone */
 664     for (it = self->parents; it; it = g_slist_next(it))
 665         ((ObClient*)it->data)->transients =
 666             g_slist_remove(((ObClient*)it->data)->transients,self);
 667
 668     /* tell our transients that we're gone */
 669     for (it = self->transients; it; it = g_slist_next(it)) {
 670         ((ObClient*)it->data)->parents =
 671             g_slist_remove(((ObClient*)it->data)->parents, self);
 672         /* we could be keeping our children in a higher layer */
 673         client_calc_layer(it->data);
 674     }
 675
 676     /* remove from its group */
 677     if (self->group) {
 678         group_remove(self->group, self);
 679         self->group = NULL;
 680     }
 681
 682     /* restore the window's original geometry so it is not lost */
 683     {
 684         Rect a;
 685
 686         a = self->area;
 687
 688         if (self->fullscreen)
 689             a = self->pre_fullscreen_area;
 690         else if (self->max_horz || self->max_vert) {
 691             if (self->max_horz) {
 692                 a.x = self->pre_max_area.x;
 693                 a.width = self->pre_max_area.width;
 694             }
 695             if (self->max_vert) {
 696                 a.y = self->pre_max_area.y;
 697                 a.height = self->pre_max_area.height;
 698             }
 699         }
 700
 701         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 702         /* let it be moved and resized no matter what */
 703         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 704         self->decorations = 0; /* unmanaged windows have no decor */
 705
 706         /* give the client its border back */
 707         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 708
 709         client_move_resize(self, a.x, a.y, a.width, a.height);
 710     }
 711
 712     /* reparent the window out of the frame, and free the frame */
 713     frame_release_client(self->frame);
 714     frame_free(self->frame);
 715     self->frame = NULL;
 716
 717     if (ob_state() != OB_STATE_EXITING) {
 718         /* these values should not be persisted across a window
 719            unmapping/mapping */
 720         PROP_ERASE(self->window, net_wm_desktop);
 721         PROP_ERASE(self->window, net_wm_state);
 722         PROP_ERASE(self->window, wm_state);
 723     } else {
 724         /* if we're left in an unmapped state, the client wont be mapped.
 725            this is bad, since we will no longer be managing the window on
 726            restart */
 727         XMapWindow(ob_display, self->window);
 728     }
 729
 730     /* update the list hints */
 731     client_set_list();
 732
 733     ob_debug("Unmanaged window 0x%lx\n", self->window);
 734
 735     /* free all data allocated in the client struct */
 736     g_slist_free(self->transients);
 737     for (j = 0; j < self->nicons; ++j)
 738         g_free(self->icons[j].data);
 739     if (self->nicons > 0)
 740         g_free(self->icons);
 741     g_free(self->wm_command);
 742     g_free(self->title);
 743     g_free(self->icon_title);
 744     g_free(self->name);
 745     g_free(self->class);
 746     g_free(self->role);
 747     g_free(self->client_machine);
 748     g_free(self->sm_client_id);
 749     g_free(self);
 750 }
 751
 752 void client_fake_unmanage(ObClient *self)
 753 {
 754     /* this is all that got allocated to get the decorations */
 755
 756     frame_free(self->frame);
 757     g_free(self);
 758 }
 759
 760 /*! Returns a new structure containing the per-app settings for this client.
 761   The returned structure needs to be freed with g_free. */
 762 static ObAppSettings *client_get_settings_state(ObClient *self)
 763 {
 764     ObAppSettings *settings;
 765     GSList *it;
 766
 767     settings = config_create_app_settings();
 768
 769     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 770         ObAppSettings *app = it->data;
 771         gboolean match = TRUE;
 772
 773         g_assert(app->name != NULL || app->class != NULL);
 774
 775         /* we know that either name or class is not NULL so it will have to
 776            match to use the rule */
 777         if (app->name &&
 778             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 779             match = FALSE;
 780         else if (app->class &&
 781                 !g_pattern_match(app->class,
 782                                  strlen(self->class), self->class, NULL))
 783             match = FALSE;
 784         else if (app->role &&
 785                  !g_pattern_match(app->role,
 786                                   strlen(self->role), self->role, NULL))
 787             match = FALSE;
 788
 789         if (match) {
 790             ob_debug("Window matching: %s\n", app->name);
 791
 792             /* copy the settings to our struct, overriding the existing
 793                settings if they are not defaults */
 794             config_app_settings_copy_non_defaults(app, settings);
 795         }
 796     }
 797
 798     if (settings->shade != -1)
 799         self->shaded = !!settings->shade;
 800     if (settings->decor != -1)
 801         self->undecorated = !settings->decor;
 802     if (settings->iconic != -1)
 803         self->iconic = !!settings->iconic;
 804     if (settings->skip_pager != -1)
 805         self->skip_pager = !!settings->skip_pager;
 806     if (settings->skip_taskbar != -1)
 807         self->skip_taskbar = !!settings->skip_taskbar;
 808
 809     if (settings->max_vert != -1)
 810         self->max_vert = !!settings->max_vert;
 811     if (settings->max_horz != -1)
 812         self->max_horz = !!settings->max_horz;
 813
 814     if (settings->fullscreen != -1)
 815         self->fullscreen = !!settings->fullscreen;
 816
 817     if (settings->desktop) {
 818         if (settings->desktop == DESKTOP_ALL)
 819             self->desktop = settings->desktop;
 820         else if (settings->desktop > 0 &&
 821                  settings->desktop <= screen_num_desktops)
 822             self->desktop = settings->desktop - 1;
 823     }
 824
 825     if (settings->layer == -1) {
 826         self->below = TRUE;
 827         self->above = FALSE;
 828     }
 829     else if (settings->layer == 0) {
 830         self->below = FALSE;
 831         self->above = FALSE;
 832     }
 833     else if (settings->layer == 1) {
 834         self->below = FALSE;
 835         self->above = TRUE;
 836     }
 837     return settings;
 838 }
 839
 840 static void client_restore_session_state(ObClient *self)
 841 {
 842     GList *it;
 843
 844     ob_debug_type(OB_DEBUG_SM,
 845                   "Restore session for client %s\n", self->title);
 846
 847     if (!(it = session_state_find(self))) {
 848         ob_debug_type(OB_DEBUG_SM,
 849                       "Session data not found for client %s\n", self->title);
 850         return;
 851     }
 852
 853     self->session = it->data;
 854
 855     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 856                   self->title);
 857
 858     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 859     self->positioned = USPosition;
 860     self->sized = USSize;
 861     if (self->session->w > 0)
 862         self->area.width = self->session->w;
 863     if (self->session->h > 0)
 864         self->area.height = self->session->h;
 865     XResizeWindow(ob_display, self->window,
 866                   self->area.width, self->area.height);
 867
 868     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 869                      self->session->desktop :
 870                      MIN(screen_num_desktops - 1, self->session->desktop));
 871     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 872
 873     self->shaded = self->session->shaded;
 874     self->iconic = self->session->iconic;
 875     self->skip_pager = self->session->skip_pager;
 876     self->skip_taskbar = self->session->skip_taskbar;
 877     self->fullscreen = self->session->fullscreen;
 878     self->above = self->session->above;
 879     self->below = self->session->below;
 880     self->max_horz = self->session->max_horz;
 881     self->max_vert = self->session->max_vert;
 882     self->undecorated = self->session->undecorated;
 883 }
 884
 885 static gboolean client_restore_session_stacking(ObClient *self)
 886 {
 887     GList *it, *mypos;
 888
 889     if (!self->session) return FALSE;
 890
 891     mypos = g_list_find(session_saved_state, self->session);
 892     if (!mypos) return FALSE;
 893
 894     /* start above me and look for the first client */
 895     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 896         GList *cit;
 897
 898         for (cit = client_list; cit; cit = g_list_next(cit)) {
 899             ObClient *c = cit->data;
 900             /* found a client that was in the session, so go below it */
 901             if (c->session == it->data) {
 902                 stacking_below(CLIENT_AS_WINDOW(self),
 903                                CLIENT_AS_WINDOW(cit->data));
 904                 return TRUE;
 905             }
 906         }
 907     }
 908     return FALSE;
 909 }
 910
 911 void client_move_onscreen(ObClient *self, gboolean rude)
 912 {
 913     gint x = self->area.x;
 914     gint y = self->area.y;
 915     if (client_find_onscreen(self, &x, &y,
 916                              self->area.width,
 917                              self->area.height, rude)) {
 918         client_move(self, x, y);
 919     }
 920 }
 921
 922 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 923                               gboolean rude)
 924 {
 925     gint ox = *x, oy = *y;
 926     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 927     gint fw, fh;
 928     Rect desired;
 929     guint i;
 930
 931     RECT_SET(desired, *x, *y, w, h);
 932     frame_rect_to_frame(self->frame, &desired);
 933
 934     /* get where the frame would be */
 935     frame_client_gravity(self->frame, x, y, w, h);
 936
 937     /* get the requested size of the window with decorations */
 938     fw = self->frame->size.left + w + self->frame->size.right;
 939     fh = self->frame->size.top + h + self->frame->size.bottom;
 940
 941     /* If rudeness wasn't requested, then still be rude in a given direction
 942        if the client is not moving, only resizing in that direction */
 943     if (!rude) {
 944         Point oldtl, oldtr, oldbl, oldbr;
 945         Point newtl, newtr, newbl, newbr;
 946         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 947
 948         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 949         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 950                   self->frame->area.y + self->frame->area.height - 1);
 951         POINT_SET(oldtr, oldbr.x, oldtl.y);
 952         POINT_SET(oldbl, oldtl.x, oldbr.y);
 953
 954         POINT_SET(newtl, *x, *y);
 955         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 956         POINT_SET(newtr, newbr.x, newtl.y);
 957         POINT_SET(newbl, newtl.x, newbr.y);
 958
 959         /* is it moving or just resizing from some corner? */
 960         stationary_l = oldtl.x == newtl.x;
 961         stationary_r = oldtr.x == newtr.x;
 962         stationary_t = oldtl.y == newtl.y;
 963         stationary_b = oldbl.y == newbl.y;
 964
 965         /* if left edge is growing and didnt move right edge */
 966         if (stationary_r && newtl.x < oldtl.x)
 967             rudel = TRUE;
 968         /* if right edge is growing and didnt move left edge */
 969         if (stationary_l && newtr.x > oldtr.x)
 970             ruder = TRUE;
 971         /* if top edge is growing and didnt move bottom edge */
 972         if (stationary_b && newtl.y < oldtl.y)
 973             rudet = TRUE;
 974         /* if bottom edge is growing and didnt move top edge */
 975         if (stationary_t && newbl.y > oldbl.y)
 976             rudeb = TRUE;
 977     }
 978
 979     for (i = 0; i < screen_num_monitors; ++i) {
 980         Rect *a;
 981
 982         if (!screen_physical_area_monitor_contains(i, &desired))
 983             continue;
 984
 985         a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &desired);
 986
 987         /* This makes sure windows aren't entirely outside of the screen so you
 988            can't see them at all.
 989            It makes sure 10% of the window is on the screen at least. At don't
 990            let it move itself off the top of the screen, which would hide the
 991            titlebar on you. (The user can still do this if they want too, it's
 992            only limiting the application.
 993         */
 994         if (client_normal(self)) {
 995             if (!self->strut.right && *x + fw/10 >= a->x + a->width - 1)
 996                 *x = a->x + a->width - fw/10;
 997             if (!self->strut.bottom && *y + fh/10 >= a->y + a->height - 1)
 998                 *y = a->y + a->height - fh/10;
 999             if (!self->strut.left && *x + fw*9/10 - 1 < a->x)
1000                 *x = a->x - fw*9/10;
1001             if (!self->strut.top && *y + fh*9/10 - 1 < a->y)
1002                 *y = a->y - fw*9/10;
1003         }
1004
1005         /* This here doesn't let windows even a pixel outside the
1006            struts/screen. When called from client_manage, programs placing
1007            themselves are forced completely onscreen, while things like
1008            xterm -geometry resolution-width/2 will work fine. Trying to
1009            place it completely offscreen will be handled in the above code.
1010            Sorry for this confused comment, i am tired. */
1011         if (rudel && !self->strut.left && *x < a->x) *x = a->x;
1012         if (ruder && !self->strut.right && *x + fw > a->x + a->width)
1013             *x = a->x + MAX(0, a->width - fw);
1014
1015         if (rudet && !self->strut.top && *y < a->y) *y = a->y;
1016         if (rudeb && !self->strut.bottom && *y + fh > a->y + a->height)
1017             *y = a->y + MAX(0, a->height - fh);
1018
1019         g_free(a);
1020     }
1021
1022     /* get where the client should be */
1023     frame_frame_gravity(self->frame, x, y, w, h);
1024
1025     return ox != *x || oy != *y;
1026 }
1027
1028 static void client_get_all(ObClient *self, gboolean real)
1029 {
1030     /* this is needed for the frame to set itself up */
1031     client_get_area(self);
1032
1033     /* these things can change the decor and functions of the window */
1034
1035     client_get_mwm_hints(self);
1036     /* this can change the mwmhints for special cases */
1037     client_get_type_and_transientness(self);
1038     client_get_state(self);
1039     client_update_normal_hints(self);
1040
1041     /* get the session related properties, these can change decorations
1042        from per-app settings */
1043     client_get_session_ids(self);
1044
1045     /* now we got everything that can affect the decorations */
1046     if (!real)
1047         return;
1048
1049     /* get this early so we have it for debugging */
1050     client_update_title(self);
1051
1052     client_update_protocols(self);
1053
1054     client_update_wmhints(self);
1055     /* this may have already been called from client_update_wmhints */
1056     if (!self->parents && !self->transient_for_group)
1057         client_update_transient_for(self);
1058
1059     client_get_startup_id(self);
1060     client_get_desktop(self);/* uses transient data/group/startup id if a
1061                                 desktop is not specified */
1062     client_get_shaped(self);
1063
1064     {
1065         /* a couple type-based defaults for new windows */
1066
1067         /* this makes sure that these windows appear on all desktops */
1068         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1069             self->desktop = DESKTOP_ALL;
1070     }
1071
1072 #ifdef SYNC
1073     client_update_sync_request_counter(self);
1074 #endif
1075
1076     client_get_colormap(self);
1077     client_update_strut(self);
1078     client_update_icons(self);
1079     client_update_user_time_window(self);
1080     if (!self->user_time_window) /* check if this would have been called */
1081         client_update_user_time(self);
1082     client_update_icon_geometry(self);
1083 }
1084
1085 static void client_get_startup_id(ObClient *self)
1086 {
1087     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1088         if (self->group)
1089             PROP_GETS(self->group->leader,
1090                       net_startup_id, utf8, &self->startup_id);
1091 }
1092
1093 static void client_get_area(ObClient *self)
1094 {
1095     XWindowAttributes wattrib;
1096     Status ret;
1097
1098     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1099     g_assert(ret != BadWindow);
1100
1101     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1102     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1103     self->border_width = wattrib.border_width;
1104
1105     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1106              wattrib.width, wattrib.height, wattrib.border_width);
1107 }
1108
1109 static void client_get_desktop(ObClient *self)
1110 {
1111     guint32 d = screen_num_desktops; /* an always-invalid value */
1112
1113     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1114         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1115             self->desktop = screen_num_desktops - 1;
1116         else
1117             self->desktop = d;
1118         ob_debug("client requested desktop 0x%x\n", self->desktop);
1119     } else {
1120         GSList *it;
1121         gboolean first = TRUE;
1122         guint all = screen_num_desktops; /* not a valid value */
1123
1124         /* if they are all on one desktop, then open it on the
1125            same desktop */
1126         for (it = self->parents; it; it = g_slist_next(it)) {
1127             ObClient *c = it->data;
1128
1129             if (c->desktop == DESKTOP_ALL) continue;
1130
1131             if (first) {
1132                 all = c->desktop;
1133                 first = FALSE;
1134             }
1135             else if (all != c->desktop)
1136                 all = screen_num_desktops; /* make it invalid */
1137         }
1138         if (all != screen_num_desktops) {
1139             self->desktop = all;
1140
1141             ob_debug("client desktop set from parents: 0x%x\n",
1142                      self->desktop);
1143         }
1144         /* try get from the startup-notification protocol */
1145         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1146             if (self->desktop >= screen_num_desktops &&
1147                 self->desktop != DESKTOP_ALL)
1148                 self->desktop = screen_num_desktops - 1;
1149             ob_debug("client desktop set from startup-notification: 0x%x\n",
1150                      self->desktop);
1151         }
1152         /* defaults to the current desktop */
1153         else {
1154             self->desktop = screen_desktop;
1155             ob_debug("client desktop set to the current desktop: %d\n",
1156                      self->desktop);
1157         }
1158     }
1159 }
1160
1161 static void client_get_state(ObClient *self)
1162 {
1163     guint32 *state;
1164     guint num;
1165
1166     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1167         gulong i;
1168         for (i = 0; i < num; ++i) {
1169             if (state[i] == prop_atoms.net_wm_state_modal)
1170                 self->modal = TRUE;
1171             else if (state[i] == prop_atoms.net_wm_state_shaded)
1172                 self->shaded = TRUE;
1173             else if (state[i] == prop_atoms.net_wm_state_hidden)
1174                 self->iconic = TRUE;
1175             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1176                 self->skip_taskbar = TRUE;
1177             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1178                 self->skip_pager = TRUE;
1179             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1180                 self->fullscreen = TRUE;
1181             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1182                 self->max_vert = TRUE;
1183             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1184                 self->max_horz = TRUE;
1185             else if (state[i] == prop_atoms.net_wm_state_above)
1186                 self->above = TRUE;
1187             else if (state[i] == prop_atoms.net_wm_state_below)
1188                 self->below = TRUE;
1189             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1190                 self->demands_attention = TRUE;
1191             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1192                 self->undecorated = TRUE;
1193         }
1194
1195         g_free(state);
1196     }
1197 }
1198
1199 static void client_get_shaped(ObClient *self)
1200 {
1201     self->shaped = FALSE;
1202 #ifdef   SHAPE
1203     if (extensions_shape) {
1204         gint foo;
1205         guint ufoo;
1206         gint s;
1207
1208         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1209
1210         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1211                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1212                            &ufoo);
1213         self->shaped = (s != 0);
1214     }
1215 #endif
1216 }
1217
1218 void client_update_transient_for(ObClient *self)
1219 {
1220     Window t = None;
1221     ObClient *target = NULL;
1222     gboolean trangroup = FALSE;
1223
1224     if (XGetTransientForHint(ob_display, self->window, &t)) {
1225         if (t != self->window) { /* cant be transient to itself! */
1226             target = g_hash_table_lookup(window_map, &t);
1227             /* if this happens then we need to check for it*/
1228             g_assert(target != self);
1229             if (target && !WINDOW_IS_CLIENT(target)) {
1230                 /* this can happen when a dialog is a child of
1231                    a dockapp, for example */
1232                 target = NULL;
1233             }
1234         }
1235
1236         /* Setting the transient_for to Root is actually illegal, however
1237            applications from time have done this to specify transient for
1238            their group */
1239         if (!target && self->group && t == RootWindow(ob_display, ob_screen))
1240             trangroup = TRUE;
1241     } else if (self->group && self->transient)
1242         trangroup = TRUE;
1243
1244     client_update_transient_tree(self, self->group, self->group,
1245                                  self->transient_for_group, trangroup,
1246                                  client_direct_parent(self), target);
1247     self->transient_for_group = trangroup;
1248
1249 }
1250
1251 static void client_update_transient_tree(ObClient *self,
1252                                          ObGroup *oldgroup, ObGroup *newgroup,
1253                                          gboolean oldgtran, gboolean newgtran,
1254                                          ObClient* oldparent,
1255                                          ObClient *newparent)
1256 {
1257     GSList *it, *next;
1258     ObClient *c;
1259
1260     g_assert(!oldgtran || oldgroup);
1261     g_assert(!newgtran || newgroup);
1262     g_assert((!oldgtran && !oldparent) ||
1263              (oldgtran && !oldparent) ||
1264              (!oldgtran && oldparent));
1265     g_assert((!newgtran && !newparent) ||
1266              (newgtran && !newparent) ||
1267              (!newgtran && newparent));
1268
1269     /* * *
1270       Group transient windows are not allowed to have other group
1271       transient windows as their children.
1272       * * */
1273
1274
1275     /* No change has occured */
1276     if (oldgroup == newgroup &&
1277         oldgtran == newgtran &&
1278         oldparent == newparent) return;
1279
1280     /** Remove the client from the transient tree wherever it has changed **/
1281
1282     /* If the window is becoming a direct transient for a window in its group
1283        then any group transients which were our children and are now becoming
1284        our parents need to stop being our children.
1285
1286        Group transients can't be children of group transients already, but
1287        we could have any number of direct parents above up, any of which could
1288        be transient for the group, and we need to remove it from our children.
1289     */
1290     if (!oldgtran && oldparent != newparent && newparent != NULL &&
1291         newgroup != NULL && newgroup == oldgroup &&
1292         client_normal(newparent))
1293     {
1294         ObClient *look = client_search_top_direct_parent(newparent);
1295         self->transients = g_slist_remove(self->transients, look);
1296         look->parents = g_slist_remove(look->parents, self);
1297     }
1298
1299
1300     /* If the group changed, or if we are just becoming transient for the
1301        group, then we need to remove any old group transient windows
1302        from our children. But if we were already transient for the group, then
1303        other group transients are not our children. */
1304     if ((oldgroup != newgroup || (newgtran && oldgtran != newgtran)) &&
1305         oldgroup != NULL && !oldgtran)
1306     {
1307         for (it = self->transients; it; it = next) {
1308             next = g_slist_next(it);
1309             c = it->data;
1310             if (c->group == oldgroup && client_normal(self)) {
1311                 self->transients = g_slist_delete_link(self->transients, it);
1312                 c->parents = g_slist_remove(c->parents, self);
1313             }
1314         }
1315     }
1316
1317     /* If we used to be transient for a group and now we are not, or we're
1318        transient for a new group, then we need to remove ourselves from all
1319        our ex-parents */
1320     if (oldgtran && (oldgroup != newgroup || oldgtran != newgtran))
1321     {
1322         for (it = self->parents; it; it = next) {
1323             next = g_slist_next(it);
1324             c = it->data;
1325             if (!c->transient_for_group && client_normal(c)) {
1326                 c->transients = g_slist_remove(c->transients, self);
1327                 self->parents = g_slist_delete_link(self->parents, it);
1328             }
1329         }
1330     }
1331     /* If we used to be transient for a single window and we are no longer
1332        transient for it, then we need to remove ourself from its children */
1333     else if (oldparent && oldparent != newparent &&
1334              client_normal(oldparent))
1335     {
1336         oldparent->transients = g_slist_remove(oldparent->transients, self);
1337         self->parents = g_slist_remove(self->parents, oldparent);
1338     }
1339
1340     /** Re-add the client to the transient tree wherever it has changed **/
1341
1342     /* If we're now transient for a group and we weren't transient for it
1343        before then we need to add ourselves to all our new parents */
1344     if (newgtran && (oldgroup != newgroup || oldgtran != newgtran))
1345     {
1346         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1347             c = it->data;
1348             if (c != self && !c->transient_for_group && client_normal(c))
1349             {
1350                 c->transients = g_slist_prepend(c->transients, self);
1351                 self->parents = g_slist_prepend(self->parents, c);
1352             }
1353         }
1354     }
1355     /* If we are now transient for a single window which we weren't before,
1356        we need to add ourselves to its children
1357
1358        WARNING: Cyclical transient ness is possible if two windows are
1359        transient for eachother.
1360     */
1361     else if (newparent && newparent != oldparent &&
1362              /* don't make ourself its child if it is already our child */
1363              !client_is_direct_child(self, newparent) &&
1364              client_normal(newparent))
1365     {
1366         newparent->transients = g_slist_prepend(newparent->transients, self);
1367         self->parents = g_slist_prepend(self->parents, newparent);
1368     }
1369
1370     /* If the group changed then we need to add any new group transient
1371        windows to our children. But if we're transient for the group, then
1372        other group transients are not our children.
1373
1374        WARNING: Cyclical transient-ness is possible. For e.g. if:
1375        A is transient for the group
1376        B is transient for A
1377        C is transient for B
1378        A can't be transient for C or we have a cycle
1379     */
1380     if (oldgroup != newgroup && newgroup != NULL && !newgtran &&
1381         client_normal(self))
1382     {
1383         for (it = newgroup->members; it; it = g_slist_next(it)) {
1384             c = it->data;
1385             if (c != self && c->transient_for_group &&
1386                 /* Don't make it our child if it is already our parent */
1387                 !client_is_direct_child(c, self))
1388             {
1389                 self->transients = g_slist_prepend(self->transients, c);
1390                 c->parents = g_slist_prepend(c->parents, self);
1391             }
1392         }
1393     }
1394 }
1395
1396 static void client_get_mwm_hints(ObClient *self)
1397 {
1398     guint num;
1399     guint32 *hints;
1400
1401     self->mwmhints.flags = 0; /* default to none */
1402
1403     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1404                     &hints, &num)) {
1405         if (num >= OB_MWM_ELEMENTS) {
1406             self->mwmhints.flags = hints[0];
1407             self->mwmhints.functions = hints[1];
1408             self->mwmhints.decorations = hints[2];
1409         }
1410         g_free(hints);
1411     }
1412 }
1413
1414 void client_get_type_and_transientness(ObClient *self)
1415 {
1416     guint num, i;
1417     guint32 *val;
1418     Window t;
1419
1420     self->type = -1;
1421     self->transient = FALSE;
1422
1423     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1424         /* use the first value that we know about in the array */
1425         for (i = 0; i < num; ++i) {
1426             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1427                 self->type = OB_CLIENT_TYPE_DESKTOP;
1428             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1429                 self->type = OB_CLIENT_TYPE_DOCK;
1430             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1431                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1432             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1433                 self->type = OB_CLIENT_TYPE_MENU;
1434             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1435                 self->type = OB_CLIENT_TYPE_UTILITY;
1436             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1437                 self->type = OB_CLIENT_TYPE_SPLASH;
1438             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1439                 self->type = OB_CLIENT_TYPE_DIALOG;
1440             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1441                 self->type = OB_CLIENT_TYPE_NORMAL;
1442             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1443                 /* prevent this window from getting any decor or
1444                    functionality */
1445                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1446                                          OB_MWM_FLAG_DECORATIONS);
1447                 self->mwmhints.decorations = 0;
1448                 self->mwmhints.functions = 0;
1449             }
1450             if (self->type != (ObClientType) -1)
1451                 break; /* grab the first legit type */
1452         }
1453         g_free(val);
1454     }
1455
1456     if (XGetTransientForHint(ob_display, self->window, &t))
1457         self->transient = TRUE;
1458
1459     if (self->type == (ObClientType) -1) {
1460         /*the window type hint was not set, which means we either classify
1461           ourself as a normal window or a dialog, depending on if we are a
1462           transient. */
1463         if (self->transient)
1464             self->type = OB_CLIENT_TYPE_DIALOG;
1465         else
1466             self->type = OB_CLIENT_TYPE_NORMAL;
1467     }
1468
1469     /* then, based on our type, we can update our transientness.. */
1470     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1471         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1472         self->type == OB_CLIENT_TYPE_MENU ||
1473         self->type == OB_CLIENT_TYPE_UTILITY)
1474     {
1475         self->transient = TRUE;
1476     }
1477 }
1478
1479 void client_update_protocols(ObClient *self)
1480 {
1481     guint32 *proto;
1482     guint num_return, i;
1483
1484     self->focus_notify = FALSE;
1485     self->delete_window = FALSE;
1486
1487     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1488         for (i = 0; i < num_return; ++i) {
1489             if (proto[i] == prop_atoms.wm_delete_window)
1490                 /* this means we can request the window to close */
1491                 self->delete_window = TRUE;
1492             else if (proto[i] == prop_atoms.wm_take_focus)
1493                 /* if this protocol is requested, then the window will be
1494                    notified whenever we want it to receive focus */
1495                 self->focus_notify = TRUE;
1496 #ifdef SYNC
1497             else if (proto[i] == prop_atoms.net_wm_sync_request)
1498                 /* if this protocol is requested, then resizing the
1499                    window will be synchronized between the frame and the
1500                    client */
1501                 self->sync_request = TRUE;
1502 #endif
1503         }
1504         g_free(proto);
1505     }
1506 }
1507
1508 #ifdef SYNC
1509 void client_update_sync_request_counter(ObClient *self)
1510 {
1511     guint32 i;
1512
1513     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1514         self->sync_counter = i;
1515     } else
1516         self->sync_counter = None;
1517 }
1518 #endif
1519
1520 void client_get_colormap(ObClient *self)
1521 {
1522     XWindowAttributes wa;
1523
1524     if (XGetWindowAttributes(ob_display, self->window, &wa))
1525         client_update_colormap(self, wa.colormap);
1526 }
1527
1528 void client_update_colormap(ObClient *self, Colormap colormap)
1529 {
1530     if (colormap == self->colormap) return;
1531
1532     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1533
1534     if (client_focused(self)) {
1535         screen_install_colormap(self, FALSE); /* uninstall old one */
1536         self->colormap = colormap;
1537         screen_install_colormap(self, FALSE); /* install new one */
1538     } else
1539         self->colormap = colormap;
1540 }
1541
1542 void client_update_normal_hints(ObClient *self)
1543 {
1544     XSizeHints size;
1545     glong ret;
1546
1547     /* defaults */
1548     self->min_ratio = 0.0f;
1549     self->max_ratio = 0.0f;
1550     SIZE_SET(self->size_inc, 1, 1);
1551     SIZE_SET(self->base_size, 0, 0);
1552     SIZE_SET(self->min_size, 0, 0);
1553     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1554
1555     /* get the hints from the window */
1556     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1557         /* normal windows can't request placement! har har
1558         if (!client_normal(self))
1559         */
1560         self->positioned = (size.flags & (PPosition|USPosition));
1561         self->sized = (size.flags & (PSize|USSize));
1562
1563         if (size.flags & PWinGravity)
1564             self->gravity = size.win_gravity;
1565
1566         if (size.flags & PAspect) {
1567             if (size.min_aspect.y)
1568                 self->min_ratio =
1569                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1570             if (size.max_aspect.y)
1571                 self->max_ratio =
1572                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1573         }
1574
1575         if (size.flags & PMinSize)
1576             SIZE_SET(self->min_size, size.min_width, size.min_height);
1577
1578         if (size.flags & PMaxSize)
1579             SIZE_SET(self->max_size, size.max_width, size.max_height);
1580
1581         if (size.flags & PBaseSize)
1582             SIZE_SET(self->base_size, size.base_width, size.base_height);
1583
1584         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1585             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1586
1587         ob_debug("Normal hints: min size (%d %d) max size (%d %d)\n   "
1588                  "size inc (%d %d) base size (%d %d)\n",
1589                  self->min_size.width, self->min_size.height,
1590                  self->max_size.width, self->max_size.height,
1591                  self->size_inc.width, self->size_inc.height,
1592                  self->base_size.width, self->base_size.height);
1593     }
1594     else
1595         ob_debug("Normal hints: not set\n");
1596 }
1597
1598 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1599 {
1600     /* start with everything (cept fullscreen) */
1601     self->decorations =
1602         (OB_FRAME_DECOR_TITLEBAR |
1603          OB_FRAME_DECOR_HANDLE |
1604          OB_FRAME_DECOR_GRIPS |
1605          OB_FRAME_DECOR_BORDER |
1606          OB_FRAME_DECOR_ICON |
1607          OB_FRAME_DECOR_ALLDESKTOPS |
1608          OB_FRAME_DECOR_ICONIFY |
1609          OB_FRAME_DECOR_MAXIMIZE |
1610          OB_FRAME_DECOR_SHADE |
1611          OB_FRAME_DECOR_CLOSE);
1612     self->functions =
1613         (OB_CLIENT_FUNC_RESIZE |
1614          OB_CLIENT_FUNC_MOVE |
1615          OB_CLIENT_FUNC_ICONIFY |
1616          OB_CLIENT_FUNC_MAXIMIZE |
1617          OB_CLIENT_FUNC_SHADE |
1618          OB_CLIENT_FUNC_CLOSE |
1619          OB_CLIENT_FUNC_BELOW |
1620          OB_CLIENT_FUNC_ABOVE |
1621          OB_CLIENT_FUNC_UNDECORATE);
1622
1623     if (!(self->min_size.width < self->max_size.width ||
1624           self->min_size.height < self->max_size.height))
1625         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1626
1627     switch (self->type) {
1628     case OB_CLIENT_TYPE_NORMAL:
1629         /* normal windows retain all of the possible decorations and
1630            functionality, and are the only windows that you can fullscreen */
1631         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1632         break;
1633
1634     case OB_CLIENT_TYPE_DIALOG:
1635     case OB_CLIENT_TYPE_UTILITY:
1636         /* these windows don't have anything added or removed by default */
1637         break;
1638
1639     case OB_CLIENT_TYPE_MENU:
1640     case OB_CLIENT_TYPE_TOOLBAR:
1641         /* these windows can't iconify or maximize */
1642         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1643                                OB_FRAME_DECOR_MAXIMIZE);
1644         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1645                              OB_CLIENT_FUNC_MAXIMIZE);
1646         break;
1647
1648     case OB_CLIENT_TYPE_SPLASH:
1649         /* these don't get get any decorations, and the only thing you can
1650            do with them is move them */
1651         self->decorations = 0;
1652         self->functions = OB_CLIENT_FUNC_MOVE;
1653         break;
1654
1655     case OB_CLIENT_TYPE_DESKTOP:
1656         /* these windows are not manipulated by the window manager */
1657         self->decorations = 0;
1658         self->functions = 0;
1659         break;
1660
1661     case OB_CLIENT_TYPE_DOCK:
1662         /* these windows are not manipulated by the window manager, but they
1663            can set below layer which has a special meaning */
1664         self->decorations = 0;
1665         self->functions = OB_CLIENT_FUNC_BELOW;
1666         break;
1667     }
1668
1669     /* Mwm Hints are applied subtractively to what has already been chosen for
1670        decor and functionality */
1671     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1672         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1673             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1674                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1675             {
1676                 /* if the mwm hints request no handle or title, then all
1677                    decorations are disabled, but keep the border if that's
1678                    specified */
1679                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1680                     self->decorations = OB_FRAME_DECOR_BORDER;
1681                 else
1682                     self->decorations = 0;
1683             }
1684         }
1685     }
1686
1687     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1688         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1689             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1690                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1691             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1692                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1693             /* dont let mwm hints kill any buttons
1694                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1695                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1696                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1697                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1698             */
1699             /* dont let mwm hints kill the close button
1700                if (! (self->mwmhints.functions & MwmFunc_Close))
1701                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1702         }
1703     }
1704
1705     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1706         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1707     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1708         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1709     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1710         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1711
1712     /* can't maximize without moving/resizing */
1713     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1714           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1715           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1716         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1717         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1718     }
1719
1720     if (self->max_horz && self->max_vert) {
1721         /* you can't resize fully maximized windows */
1722         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1723         /* kill the handle on fully maxed windows */
1724         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1725     }
1726
1727     /* If there are no decorations to remove, don't allow the user to try
1728        toggle the state */
1729     if (self->decorations == 0)
1730         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1731
1732     /* finally, the user can have requested no decorations, which overrides
1733        everything (but doesnt give it a border if it doesnt have one) */
1734     if (self->undecorated)
1735         self->decorations = 0;
1736
1737     /* if we don't have a titlebar, then we cannot shade! */
1738     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1739         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1740
1741     /* now we need to check against rules for the client's current state */
1742     if (self->fullscreen) {
1743         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1744                             OB_CLIENT_FUNC_FULLSCREEN |
1745                             OB_CLIENT_FUNC_ICONIFY);
1746         self->decorations = 0;
1747     }
1748
1749     client_change_allowed_actions(self);
1750
1751     if (reconfig)
1752         client_reconfigure(self);
1753 }
1754
1755 static void client_change_allowed_actions(ObClient *self)
1756 {
1757     gulong actions[12];
1758     gint num = 0;
1759
1760     /* desktop windows are kept on all desktops */
1761     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1762         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1763
1764     if (self->functions & OB_CLIENT_FUNC_SHADE)
1765         actions[num++] = prop_atoms.net_wm_action_shade;
1766     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1767         actions[num++] = prop_atoms.net_wm_action_close;
1768     if (self->functions & OB_CLIENT_FUNC_MOVE)
1769         actions[num++] = prop_atoms.net_wm_action_move;
1770     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1771         actions[num++] = prop_atoms.net_wm_action_minimize;
1772     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1773         actions[num++] = prop_atoms.net_wm_action_resize;
1774     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1775         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1776     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1777         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1778         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1779     }
1780     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1781         actions[num++] = prop_atoms.net_wm_action_above;
1782     if (self->functions & OB_CLIENT_FUNC_BELOW)
1783         actions[num++] = prop_atoms.net_wm_action_below;
1784     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1785         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1786
1787     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1788
1789     /* make sure the window isn't breaking any rules now */
1790
1791     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1792         if (self->frame) client_shade(self, FALSE);
1793         else self->shaded = FALSE;
1794     }
1795     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1796         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1797         else self->iconic = FALSE;
1798     }
1799     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1800         if (self->frame) client_fullscreen(self, FALSE);
1801         else self->fullscreen = FALSE;
1802     }
1803     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1804                                                          self->max_vert)) {
1805         if (self->frame) client_maximize(self, FALSE, 0);
1806         else self->max_vert = self->max_horz = FALSE;
1807     }
1808 }
1809
1810 void client_reconfigure(ObClient *self)
1811 {
1812     client_configure(self, self->area.x, self->area.y,
1813                      self->area.width, self->area.height,
1814                      FALSE, TRUE);
1815 }
1816
1817 void client_update_wmhints(ObClient *self)
1818 {
1819     XWMHints *hints;
1820
1821     /* assume a window takes input if it doesnt specify */
1822     self->can_focus = TRUE;
1823
1824     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1825         gboolean ur;
1826
1827         if (hints->flags & InputHint)
1828             self->can_focus = hints->input;
1829
1830         /* only do this when first managing the window *AND* when we aren't
1831            starting up! */
1832         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1833             if (hints->flags & StateHint)
1834                 self->iconic = hints->initial_state == IconicState;
1835
1836         ur = self->urgent;
1837         self->urgent = (hints->flags & XUrgencyHint);
1838         if (self->urgent && !ur)
1839             client_hilite(self, TRUE);
1840         else if (!self->urgent && ur && self->demands_attention)
1841             client_hilite(self, FALSE);
1842
1843         if (!(hints->flags & WindowGroupHint))
1844             hints->window_group = None;
1845
1846         /* did the group state change? */
1847         if (hints->window_group !=
1848             (self->group ? self->group->leader : None))
1849         {
1850             ObGroup *oldgroup = self->group;
1851
1852             /* remove from the old group if there was one */
1853             if (self->group != NULL) {
1854                 group_remove(self->group, self);
1855                 self->group = NULL;
1856             }
1857
1858             /* add ourself to the group if we have one */
1859             if (hints->window_group != None) {
1860                 self->group = group_add(hints->window_group, self);
1861             }
1862
1863             /* Put ourselves into the new group's transient tree, and remove
1864                ourselves from the old group's */
1865             client_update_transient_tree(self, oldgroup, self->group,
1866                                          self->transient_for_group,
1867                                          self->transient_for_group,
1868                                          client_direct_parent(self),
1869                                          client_direct_parent(self));
1870
1871             /* Lastly, being in a group, or not, can change if the window is
1872                transient for anything.
1873
1874                The logic for this is:
1875                self->transient = TRUE always if the window wants to be
1876                transient for something, even if transient_for was NULL because
1877                it wasn't in a group before.
1878
1879                If parents was NULL and oldgroup was NULL we can assume
1880                that when we add the new group, it will become transient for
1881                something.
1882
1883                If transient_for_group is TRUE, then it must have already
1884                had a group. If it is getting a new group, the above call to
1885                client_update_transient_tree has already taken care of
1886                everything ! If it is losing all group status then it will
1887                no longer be transient for anything and that needs to be
1888                updated.
1889             */
1890             if (self->transient &&
1891                 ((self->parents == NULL && oldgroup == NULL) ||
1892                  (self->transient_for_group && !self->group)))
1893                 client_update_transient_for(self);
1894         }
1895
1896         /* the WM_HINTS can contain an icon */
1897         if (hints->flags & IconPixmapHint)
1898             client_update_icons(self);
1899
1900         XFree(hints);
1901     }
1902 }
1903
1904 void client_update_title(ObClient *self)
1905 {
1906     gchar *data = NULL;
1907     gchar *visible = NULL;
1908
1909     g_free(self->title);
1910
1911     /* try netwm */
1912     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1913         /* try old x stuff */
1914         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1915               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1916             if (self->transient) {
1917                 /*
1918                   GNOME alert windows are not given titles:
1919                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1920                 */
1921                 data = g_strdup("");
1922             } else
1923                 data = g_strdup("Unnamed Window");
1924         }
1925     }
1926
1927     if (self->client_machine) {
1928         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1929         g_free(data);
1930     } else
1931         visible = data;
1932
1933     PROP_SETS(self->window, net_wm_visible_name, visible);
1934     self->title = visible;
1935
1936     if (self->frame)
1937         frame_adjust_title(self->frame);
1938
1939     /* update the icon title */
1940     data = NULL;
1941     g_free(self->icon_title);
1942
1943     /* try netwm */
1944     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1945         /* try old x stuff */
1946         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1947               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1948             data = g_strdup(self->title);
1949
1950     if (self->client_machine) {
1951         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1952         g_free(data);
1953     } else
1954         visible = data;
1955
1956     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
1957     self->icon_title = visible;
1958 }
1959
1960 void client_update_strut(ObClient *self)
1961 {
1962     guint num;
1963     guint32 *data;
1964     gboolean got = FALSE;
1965     StrutPartial strut;
1966
1967     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1968                     &data, &num)) {
1969         if (num == 12) {
1970             got = TRUE;
1971             STRUT_PARTIAL_SET(strut,
1972                               data[0], data[2], data[1], data[3],
1973                               data[4], data[5], data[8], data[9],
1974                               data[6], data[7], data[10], data[11]);
1975         }
1976         g_free(data);
1977     }
1978
1979     if (!got &&
1980         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1981         if (num == 4) {
1982             Rect *a;
1983
1984             got = TRUE;
1985
1986             /* use the screen's width/height */
1987             a = screen_physical_area_all_monitors();
1988
1989             STRUT_PARTIAL_SET(strut,
1990                               data[0], data[2], data[1], data[3],
1991                               a->y, a->y + a->height - 1,
1992                               a->x, a->x + a->width - 1,
1993                               a->y, a->y + a->height - 1,
1994                               a->x, a->x + a->width - 1);
1995             g_free(a);
1996         }
1997         g_free(data);
1998     }
1999
2000     if (!got)
2001         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2002                           0, 0, 0, 0, 0, 0, 0, 0);
2003
2004     if (!STRUT_EQUAL(strut, self->strut)) {
2005         self->strut = strut;
2006
2007         /* updating here is pointless while we're being mapped cuz we're not in
2008            the client list yet */
2009         if (self->frame)
2010             screen_update_areas();
2011     }
2012 }
2013
2014 void client_update_icons(ObClient *self)
2015 {
2016     guint num;
2017     guint32 *data;
2018     guint w, h, i, j;
2019
2020     for (i = 0; i < self->nicons; ++i)
2021         g_free(self->icons[i].data);
2022     if (self->nicons > 0)
2023         g_free(self->icons);
2024     self->nicons = 0;
2025
2026     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2027         /* figure out how many valid icons are in here */
2028         i = 0;
2029         while (num - i > 2) {
2030             w = data[i++];
2031             h = data[i++];
2032             i += w * h;
2033             if (i > num || w*h == 0) break;
2034             ++self->nicons;
2035         }
2036
2037         self->icons = g_new(ObClientIcon, self->nicons);
2038
2039         /* store the icons */
2040         i = 0;
2041         for (j = 0; j < self->nicons; ++j) {
2042             guint x, y, t;
2043
2044             w = self->icons[j].width = data[i++];
2045             h = self->icons[j].height = data[i++];
2046
2047             if (w*h == 0) continue;
2048
2049             self->icons[j].data = g_new(RrPixel32, w * h);
2050             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2051                 if (x >= w) {
2052                     x = 0;
2053                     ++y;
2054                 }
2055                 self->icons[j].data[t] =
2056                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2057                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2058                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2059                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2060             }
2061             g_assert(i <= num);
2062         }
2063
2064         g_free(data);
2065     } else {
2066         XWMHints *hints;
2067
2068         if ((hints = XGetWMHints(ob_display, self->window))) {
2069             if (hints->flags & IconPixmapHint) {
2070                 self->nicons = 1;
2071                 self->icons = g_new(ObClientIcon, self->nicons);
2072                 xerror_set_ignore(TRUE);
2073                 if (!RrPixmapToRGBA(ob_rr_inst,
2074                                     hints->icon_pixmap,
2075                                     (hints->flags & IconMaskHint ?
2076                                      hints->icon_mask : None),
2077                                     &self->icons[0].width,
2078                                     &self->icons[0].height,
2079                                     &self->icons[0].data))
2080                 {
2081                     g_free(self->icons);
2082                     self->nicons = 0;
2083                 }
2084                 xerror_set_ignore(FALSE);
2085             }
2086             XFree(hints);
2087         }
2088     }
2089
2090     /* set the default icon onto the window
2091        in theory, this could be a race, but if a window doesn't set an icon
2092        or removes it entirely, it's not very likely it is going to set one
2093        right away afterwards */
2094     if (self->nicons == 0) {
2095         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2096         gulong *data;
2097
2098         data = g_new(gulong, 48*48+2);
2099         data[0] = data[1] =  48;
2100         for (i = 0; i < 48*48; ++i)
2101             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2102                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2103                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2104                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2105         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2106         g_free(data);
2107     } else if (self->frame)
2108         /* don't draw the icon empty if we're just setting one now anyways,
2109            we'll get the property change any second */
2110         frame_adjust_icon(self->frame);
2111 }
2112
2113 void client_update_user_time(ObClient *self)
2114 {
2115     guint32 time;
2116     gboolean got = FALSE;
2117
2118     if (self->user_time_window)
2119         got = PROP_GET32(self->user_time_window,
2120                          net_wm_user_time, cardinal, &time);
2121     if (!got)
2122         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2123
2124     if (got) {
2125         /* we set this every time, not just when it grows, because in practice
2126            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2127            backward we don't want all windows to stop focusing. we'll just
2128            assume noone is setting times older than the last one, cuz that
2129            would be pretty stupid anyways
2130         */
2131         self->user_time = time;
2132
2133         /*ob_debug("window %s user time %u\n", self->title, time);*/
2134     }
2135 }
2136
2137 void client_update_user_time_window(ObClient *self)
2138 {
2139     guint32 w;
2140
2141     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2142         w = None;
2143
2144     if (w != self->user_time_window) {
2145         /* remove the old window */
2146         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2147         self->user_time_window = None;
2148
2149         if (self->group && self->group->leader == w) {
2150             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2151                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2152             /* do it anyways..? */
2153         }
2154         else if (w == self->window) {
2155             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2156                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2157             w = None; /* don't do it */
2158         }
2159
2160         /* add the new window */
2161         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2162         self->user_time_window = w;
2163
2164         /* and update from it */
2165         client_update_user_time(self);
2166     }
2167 }
2168
2169 void client_update_icon_geometry(ObClient *self)
2170 {
2171     guint num;
2172     guint32 *data;
2173
2174     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2175
2176     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2177         && num == 4)
2178     {
2179         /* don't let them set it with an area < 0 */
2180         RECT_SET(self->icon_geometry, data[0], data[1],
2181                  MAX(data[2],0), MAX(data[3],0));
2182     }
2183 }
2184
2185 static void client_get_session_ids(ObClient *self)
2186 {
2187     guint32 leader;
2188     gboolean got;
2189     gchar *s;
2190     gchar **ss;
2191
2192     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2193         leader = None;
2194
2195     /* get the SM_CLIENT_ID */
2196     got = FALSE;
2197     if (leader)
2198         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2199     if (!got)
2200         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2201
2202     /* get the WM_CLASS (name and class). make them "" if they are not
2203        provided */
2204     got = FALSE;
2205     if (leader)
2206         got = PROP_GETSS(leader, wm_class, locale, &ss);
2207     if (!got)
2208         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2209
2210     if (got) {
2211         if (ss[0]) {
2212             self->name = g_strdup(ss[0]);
2213             if (ss[1])
2214                 self->class = g_strdup(ss[1]);
2215         }
2216         g_strfreev(ss);
2217     }
2218
2219     if (self->name == NULL) self->name = g_strdup("");
2220     if (self->class == NULL) self->class = g_strdup("");
2221
2222     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2223     got = FALSE;
2224     if (leader)
2225         got = PROP_GETS(leader, wm_window_role, locale, &s);
2226     if (!got)
2227         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2228
2229     if (got)
2230         self->role = s;
2231     else
2232         self->role = g_strdup("");
2233
2234     /* get the WM_COMMAND */
2235     got = FALSE;
2236
2237     if (leader)
2238         got = PROP_GETSS(leader, wm_command, locale, &ss);
2239     if (!got)
2240         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2241
2242     if (got) {
2243         /* merge/mash them all together */
2244         gchar *merge = NULL;
2245         gint i;
2246
2247         for (i = 0; ss[i]; ++i) {
2248             gchar *tmp = merge;
2249             if (merge)
2250                 merge = g_strconcat(merge, ss[i], NULL);
2251             else
2252                 merge = g_strconcat(ss[i], NULL);
2253             g_free(tmp);
2254         }
2255         g_strfreev(ss);
2256
2257         self->wm_command = merge;
2258     }
2259
2260     /* get the WM_CLIENT_MACHINE */
2261     got = FALSE;
2262     if (leader)
2263         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2264     if (!got)
2265         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2266
2267     if (got) {
2268         gchar localhost[128];
2269
2270         gethostname(localhost, 127);
2271         localhost[127] = '\0';
2272         if (strcmp(localhost, s) != 0)
2273             self->client_machine = s;
2274         else
2275             g_free(s);
2276     }
2277 }
2278
2279 static void client_change_wm_state(ObClient *self)
2280 {
2281     gulong state[2];
2282     glong old;
2283
2284     old = self->wmstate;
2285
2286     if (self->shaded || self->iconic ||
2287         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2288     {
2289         self->wmstate = IconicState;
2290     } else
2291         self->wmstate = NormalState;
2292
2293     if (old != self->wmstate) {
2294         PROP_MSG(self->window, kde_wm_change_state,
2295                  self->wmstate, 1, 0, 0);
2296
2297         state[0] = self->wmstate;
2298         state[1] = None;
2299         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2300     }
2301 }
2302
2303 static void client_change_state(ObClient *self)
2304 {
2305     gulong netstate[12];
2306     guint num;
2307
2308     num = 0;
2309     if (self->modal)
2310         netstate[num++] = prop_atoms.net_wm_state_modal;
2311     if (self->shaded)
2312         netstate[num++] = prop_atoms.net_wm_state_shaded;
2313     if (self->iconic)
2314         netstate[num++] = prop_atoms.net_wm_state_hidden;
2315     if (self->skip_taskbar)
2316         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2317     if (self->skip_pager)
2318         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2319     if (self->fullscreen)
2320         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2321     if (self->max_vert)
2322         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2323     if (self->max_horz)
2324         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2325     if (self->above)
2326         netstate[num++] = prop_atoms.net_wm_state_above;
2327     if (self->below)
2328         netstate[num++] = prop_atoms.net_wm_state_below;
2329     if (self->demands_attention)
2330         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2331     if (self->undecorated)
2332         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2333     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2334
2335     if (self->frame)
2336         frame_adjust_state(self->frame);
2337 }
2338
2339 ObClient *client_search_focus_tree(ObClient *self)
2340 {
2341     GSList *it;
2342     ObClient *ret;
2343
2344     for (it = self->transients; it; it = g_slist_next(it)) {
2345         if (client_focused(it->data)) return it->data;
2346         if ((ret = client_search_focus_tree(it->data))) return ret;
2347     }
2348     return NULL;
2349 }
2350
2351 ObClient *client_search_focus_tree_full(ObClient *self)
2352 {
2353     if (self->parents) {
2354         GSList *it;
2355
2356         for (it = self->parents; it; it = g_slist_next(it)) {
2357             ObClient *c = it->data;
2358             if ((c = client_search_focus_tree_full(it->data))) return c;
2359         }
2360
2361         return NULL;
2362     }
2363     else {
2364         /* this function checks the whole tree, the client_search_focus_tree
2365            does not, so we need to check this window */
2366         if (client_focused(self))
2367             return self;
2368         return client_search_focus_tree(self);
2369     }
2370 }
2371
2372 ObClient *client_search_focus_group_full(ObClient *self)
2373 {
2374     GSList *it;
2375
2376     if (self->group) {
2377         for (it = self->group->members; it; it = g_slist_next(it)) {
2378             ObClient *c = it->data;
2379
2380             if (client_focused(c)) return c;
2381             if ((c = client_search_focus_tree(it->data))) return c;
2382         }
2383     } else
2384         if (client_focused(self)) return self;
2385     return NULL;
2386 }
2387
2388 gboolean client_has_parent(ObClient *self)
2389 {
2390     return self->parents != NULL;
2391 }
2392
2393 static ObStackingLayer calc_layer(ObClient *self)
2394 {
2395     ObStackingLayer l;
2396     Rect *monitor;
2397
2398     monitor = screen_physical_area_monitor(client_monitor(self));
2399
2400     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2401         l = OB_STACKING_LAYER_DESKTOP;
2402     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2403         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2404         else l = OB_STACKING_LAYER_ABOVE;
2405     }
2406     else if ((self->fullscreen ||
2407               /* No decorations and fills the monitor = oldskool fullscreen.
2408                  But not for maximized windows.
2409               */
2410               (self->decorations == 0 &&
2411                !(self->max_horz && self->max_vert) &&
2412                RECT_EQUAL(self->area, *monitor))) &&
2413              (client_focused(self) || client_search_focus_tree(self)))
2414         l = OB_STACKING_LAYER_FULLSCREEN;
2415     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2416     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2417     else l = OB_STACKING_LAYER_NORMAL;
2418
2419     g_free(monitor);
2420
2421     return l;
2422 }
2423
2424 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2425                                         ObStackingLayer min)
2426 {
2427     ObStackingLayer old, own;
2428     GSList *it;
2429
2430     old = self->layer;
2431     own = calc_layer(self);
2432     self->layer = MAX(own, min);
2433
2434     if (self->layer != old) {
2435         stacking_remove(CLIENT_AS_WINDOW(self));
2436         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2437     }
2438
2439     for (it = self->transients; it; it = g_slist_next(it))
2440         client_calc_layer_recursive(it->data, orig,
2441                                     self->layer);
2442 }
2443
2444 void client_calc_layer(ObClient *self)
2445 {
2446     ObClient *orig;
2447     GSList *it;
2448
2449     orig = self;
2450
2451     /* transients take on the layer of their parents */
2452     it = client_search_all_top_parents(self);
2453
2454     for (; it; it = g_slist_next(it))
2455         client_calc_layer_recursive(it->data, orig, 0);
2456 }
2457
2458 gboolean client_should_show(ObClient *self)
2459 {
2460     if (self->iconic)
2461         return FALSE;
2462     if (client_normal(self) && screen_showing_desktop)
2463         return FALSE;
2464     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2465         return TRUE;
2466
2467     return FALSE;
2468 }
2469
2470 gboolean client_show(ObClient *self)
2471 {
2472     gboolean show = FALSE;
2473
2474     if (client_should_show(self)) {
2475         frame_show(self->frame);
2476         show = TRUE;
2477
2478         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2479            it needs to be in IconicState. This includes when it is on another
2480            desktop!
2481         */
2482         client_change_wm_state(self);
2483     }
2484     return show;
2485 }
2486
2487 gboolean client_hide(ObClient *self)
2488 {
2489     gboolean hide = FALSE;
2490
2491     if (!client_should_show(self)) {
2492         if (self == focus_client) {
2493             /* if there is a grab going on, then we need to cancel it. if we
2494                move focus during the grab, applications will get
2495                NotifyWhileGrabbed events and ignore them !
2496
2497                actions should not rely on being able to move focus during an
2498                interactive grab.
2499             */
2500             event_cancel_all_key_grabs();
2501         }
2502
2503         /* We don't need to ignore enter events here.
2504            The window can hide/iconify in 3 different ways:
2505            1 - through an x message. in this case we ignore all enter events
2506                caused by responding to the x message (unless underMouse)
2507            2 - by a keyboard action. in this case we ignore all enter events
2508                caused by the action
2509            3 - by a mouse action. in this case they are doing stuff with the
2510                mouse and focus _should_ move.
2511
2512            Also in action_end, we simulate an enter event that can't be ignored
2513            so trying to ignore them is futile in case 3 anyways
2514         */
2515
2516         frame_hide(self->frame);
2517         hide = TRUE;
2518
2519         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2520            it needs to be in IconicState. This includes when it is on another
2521            desktop!
2522         */
2523         client_change_wm_state(self);
2524     }
2525     return hide;
2526 }
2527
2528 void client_showhide(ObClient *self)
2529 {
2530     if (!client_show(self))
2531         client_hide(self);
2532 }
2533
2534 gboolean client_normal(ObClient *self) {
2535     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2536               self->type == OB_CLIENT_TYPE_DOCK ||
2537               self->type == OB_CLIENT_TYPE_SPLASH);
2538 }
2539
2540 gboolean client_helper(ObClient *self)
2541 {
2542     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2543             self->type == OB_CLIENT_TYPE_MENU ||
2544             self->type == OB_CLIENT_TYPE_TOOLBAR);
2545 }
2546
2547 gboolean client_mouse_focusable(ObClient *self)
2548 {
2549     return !(self->type == OB_CLIENT_TYPE_MENU ||
2550              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2551              self->type == OB_CLIENT_TYPE_SPLASH ||
2552              self->type == OB_CLIENT_TYPE_DOCK);
2553 }
2554
2555 gboolean client_enter_focusable(ObClient *self)
2556 {
2557     /* you can focus desktops but it shouldn't on enter */
2558     return (client_mouse_focusable(self) &&
2559             self->type != OB_CLIENT_TYPE_DESKTOP);
2560 }
2561
2562
2563 static void client_apply_startup_state(ObClient *self,
2564                                        gint x, gint y, gint w, gint h)
2565 {
2566     /* save the states that we are going to apply */
2567     gboolean iconic = self->iconic;
2568     gboolean fullscreen = self->fullscreen;
2569     gboolean undecorated = self->undecorated;
2570     gboolean shaded = self->shaded;
2571     gboolean demands_attention = self->demands_attention;
2572     gboolean max_horz = self->max_horz;
2573     gboolean max_vert = self->max_vert;
2574     Rect oldarea;
2575     gint l;
2576
2577     /* turn them all off in the client, so they won't affect the window
2578        being placed */
2579     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2580         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2581
2582     /* move the client to its placed position, or it it's already there,
2583        generate a ConfigureNotify telling the client where it is.
2584
2585        do this after adjusting the frame. otherwise it gets all weird and
2586        clients don't work right
2587
2588        do this before applying the states so they have the correct
2589        pre-max/pre-fullscreen values
2590     */
2591     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2592     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2593              self->window, x, y, w, h);
2594     /* save the area, and make it where it should be for the premax stuff */
2595     oldarea = self->area;
2596     RECT_SET(self->area, x, y, w, h);
2597
2598     /* apply the states. these are in a carefully crafted order.. */
2599
2600     if (iconic)
2601         client_iconify(self, TRUE, FALSE, TRUE);
2602     if (fullscreen)
2603         client_fullscreen(self, TRUE);
2604     if (undecorated)
2605         client_set_undecorated(self, TRUE);
2606     if (shaded)
2607         client_shade(self, TRUE);
2608     if (demands_attention)
2609         client_hilite(self, TRUE);
2610
2611     if (max_vert && max_horz)
2612         client_maximize(self, TRUE, 0);
2613     else if (max_vert)
2614         client_maximize(self, TRUE, 2);
2615     else if (max_horz)
2616         client_maximize(self, TRUE, 1);
2617
2618     /* if the window hasn't been configured yet, then do so now */
2619     if (!fullscreen && !max_vert && !max_horz) {
2620         self->area = oldarea;
2621         client_configure(self, x, y, w, h, FALSE, TRUE);
2622     }
2623
2624     /* set the desktop hint, to make sure that it always exists */
2625     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2626
2627     /* nothing to do for the other states:
2628        skip_taskbar
2629        skip_pager
2630        modal
2631        above
2632        below
2633     */
2634 }
2635
2636 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2637 {
2638     /* these should be the current values. this is for when you're not moving,
2639        just resizing */
2640     g_assert(*x == self->area.x);
2641     g_assert(oldw == self->area.width);
2642
2643     /* horizontal */
2644     switch (self->gravity) {
2645     default:
2646     case NorthWestGravity:
2647     case WestGravity:
2648     case SouthWestGravity:
2649     case StaticGravity:
2650     case ForgetGravity:
2651         break;
2652     case NorthGravity:
2653     case CenterGravity:
2654     case SouthGravity:
2655         *x -= (neww - oldw) / 2;
2656         break;
2657     case NorthEastGravity:
2658     case EastGravity:
2659     case SouthEastGravity:
2660         *x -= neww - oldw;
2661         break;
2662     }
2663 }
2664
2665 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2666 {
2667     /* these should be the current values. this is for when you're not moving,
2668        just resizing */
2669     g_assert(*y == self->area.y);
2670     g_assert(oldh == self->area.height);
2671
2672     /* vertical */
2673     switch (self->gravity) {
2674     default:
2675     case NorthWestGravity:
2676     case NorthGravity:
2677     case NorthEastGravity:
2678     case StaticGravity:
2679     case ForgetGravity:
2680         break;
2681     case WestGravity:
2682     case CenterGravity:
2683     case EastGravity:
2684         *y -= (newh - oldh) / 2;
2685         break;
2686     case SouthWestGravity:
2687     case SouthGravity:
2688     case SouthEastGravity:
2689         *y -= newh - oldh;
2690         break;
2691     }
2692 }
2693
2694 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2695                           gint *logicalw, gint *logicalh,
2696                           gboolean user)
2697 {
2698     Rect desired = {*x, *y, *w, *h};
2699     frame_rect_to_frame(self->frame, &desired);
2700
2701     /* make the frame recalculate its dimentions n shit without changing
2702        anything visible for real, this way the constraints below can work with
2703        the updated frame dimensions. */
2704     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2705
2706     /* gets the frame's position */
2707     frame_client_gravity(self->frame, x, y, *w, *h);
2708
2709     /* these positions are frame positions, not client positions */
2710
2711     /* set the size and position if fullscreen */
2712     if (self->fullscreen) {
2713         Rect *a;
2714         guint i;
2715
2716         i = screen_find_monitor(&desired);
2717         a = screen_physical_area_monitor(i);
2718
2719         *x = a->x;
2720         *y = a->y;
2721         *w = a->width;
2722         *h = a->height;
2723
2724         user = FALSE; /* ignore if the client can't be moved/resized when it
2725                          is fullscreening */
2726
2727         g_free(a);
2728     } else if (self->max_horz || self->max_vert) {
2729         Rect *a;
2730         guint i;
2731
2732         /* use all possible struts when maximizing to the full screen */
2733         i = screen_find_monitor(&desired);
2734         a = screen_area(self->desktop, i,
2735                         (self->max_horz && self->max_vert ? NULL : &desired));
2736
2737         /* set the size and position if maximized */
2738         if (self->max_horz) {
2739             *x = a->x;
2740             *w = a->width - self->frame->size.left - self->frame->size.right;
2741         }
2742         if (self->max_vert) {
2743             *y = a->y;
2744             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2745         }
2746
2747         user = FALSE; /* ignore if the client can't be moved/resized when it
2748                          is maximizing */
2749
2750         g_free(a);
2751     }
2752
2753     /* gets the client's position */
2754     frame_frame_gravity(self->frame, x, y, *w, *h);
2755
2756     /* work within the prefered sizes given by the window */
2757     if (!(*w == self->area.width && *h == self->area.height)) {
2758         gint basew, baseh, minw, minh;
2759         gint incw, inch;
2760         gfloat minratio, maxratio;
2761
2762         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2763         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2764         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2765             0 : self->min_ratio;
2766         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2767             0 : self->max_ratio;
2768
2769         /* base size is substituted with min size if not specified */
2770         if (self->base_size.width || self->base_size.height) {
2771             basew = self->base_size.width;
2772             baseh = self->base_size.height;
2773         } else {
2774             basew = self->min_size.width;
2775             baseh = self->min_size.height;
2776         }
2777         /* min size is substituted with base size if not specified */
2778         if (self->min_size.width || self->min_size.height) {
2779             minw = self->min_size.width;
2780             minh = self->min_size.height;
2781         } else {
2782             minw = self->base_size.width;
2783             minh = self->base_size.height;
2784         }
2785
2786         /* if this is a user-requested resize, then check against min/max
2787            sizes */
2788
2789         /* smaller than min size or bigger than max size? */
2790         if (*w > self->max_size.width) *w = self->max_size.width;
2791         if (*w < minw) *w = minw;
2792         if (*h > self->max_size.height) *h = self->max_size.height;
2793         if (*h < minh) *h = minh;
2794
2795         *w -= basew;
2796         *h -= baseh;
2797
2798         /* keep to the increments */
2799         *w /= incw;
2800         *h /= inch;
2801
2802         /* you cannot resize to nothing */
2803         if (basew + *w < 1) *w = 1 - basew;
2804         if (baseh + *h < 1) *h = 1 - baseh;
2805
2806         /* save the logical size */
2807         *logicalw = incw > 1 ? *w : *w + basew;
2808         *logicalh = inch > 1 ? *h : *h + baseh;
2809
2810         *w *= incw;
2811         *h *= inch;
2812
2813         *w += basew;
2814         *h += baseh;
2815
2816         /* adjust the height to match the width for the aspect ratios.
2817            for this, min size is not substituted for base size ever. */
2818         *w -= self->base_size.width;
2819         *h -= self->base_size.height;
2820
2821         if (minratio)
2822             if (*h * minratio > *w) {
2823                 *h = (gint)(*w / minratio);
2824
2825                 /* you cannot resize to nothing */
2826                 if (*h < 1) {
2827                     *h = 1;
2828                     *w = (gint)(*h * minratio);
2829                 }
2830             }
2831         if (maxratio)
2832             if (*h * maxratio < *w) {
2833                 *h = (gint)(*w / maxratio);
2834
2835                 /* you cannot resize to nothing */
2836                 if (*h < 1) {
2837                     *h = 1;
2838                     *w = (gint)(*h * minratio);
2839                 }
2840             }
2841
2842         *w += self->base_size.width;
2843         *h += self->base_size.height;
2844     }
2845
2846     /* these override the above states! if you cant move you can't move! */
2847     if (user) {
2848         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2849             *x = self->area.x;
2850             *y = self->area.y;
2851         }
2852         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2853             *w = self->area.width;
2854             *h = self->area.height;
2855         }
2856     }
2857
2858     g_assert(*w > 0);
2859     g_assert(*h > 0);
2860 }
2861
2862
2863 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2864                       gboolean user, gboolean final)
2865 {
2866     gint oldw, oldh;
2867     gboolean send_resize_client;
2868     gboolean moved = FALSE, resized = FALSE;
2869     gboolean fmoved, fresized;
2870     guint fdecor = self->frame->decorations;
2871     gboolean fhorz = self->frame->max_horz;
2872     gboolean fvert = self->frame->max_vert;
2873     gint logicalw, logicalh;
2874
2875     /* find the new x, y, width, and height (and logical size) */
2876     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2877
2878     /* set the logical size if things changed */
2879     if (!(w == self->area.width && h == self->area.height))
2880         SIZE_SET(self->logical_size, logicalw, logicalh);
2881
2882     /* figure out if we moved or resized or what */
2883     moved = (x != self->area.x || y != self->area.y);
2884     resized = (w != self->area.width || h != self->area.height);
2885
2886     oldw = self->area.width;
2887     oldh = self->area.height;
2888     RECT_SET(self->area, x, y, w, h);
2889
2890     /* for app-requested resizes, always resize if 'resized' is true.
2891        for user-requested ones, only resize if final is true, or when
2892        resizing in redraw mode */
2893     send_resize_client = ((!user && resized) ||
2894                           (user && (final ||
2895                                     (resized && config_resize_redraw))));
2896
2897     /* if the client is enlarging, then resize the client before the frame */
2898     if (send_resize_client && (w > oldw || h > oldh)) {
2899         XMoveResizeWindow(ob_display, self->window,
2900                           self->frame->size.left, self->frame->size.top,
2901                           MAX(w, oldw), MAX(h, oldh));
2902         frame_adjust_client_area(self->frame);
2903     }
2904
2905     /* find the frame's dimensions and move/resize it */
2906     fmoved = moved;
2907     fresized = resized;
2908
2909     /* if decorations changed, then readjust everything for the frame */
2910     if (self->decorations != fdecor ||
2911         self->max_horz != fhorz || self->max_vert != fvert)
2912     {
2913         fmoved = fresized = TRUE;
2914     }
2915
2916     /* adjust the frame */
2917     if (fmoved || fresized)
2918         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2919
2920     /* This is kinda tricky and should not be changed.. let me explain!
2921
2922        When user = FALSE, then the request is coming from the application
2923        itself, and we are more strict about when to send a synthetic
2924        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
2925        in this case.
2926
2927        When user = TRUE, then the request is coming from "us", like when we
2928        maximize a window or sometihng.  In this case we are more lenient.  We
2929        used to follow the same rules as above, but _Java_ Swing can't handle
2930        this. So just to appease Swing, when user = TRUE, we always send
2931        a synthetic ConfigureNotify to give the window its root coordinates.
2932     */
2933     if ((!user && !resized) || (user && final))
2934     {
2935         XEvent event;
2936
2937         /* we have reset the client to 0 border width, so don't include
2938            it in these coords */
2939         POINT_SET(self->root_pos,
2940                   self->frame->area.x + self->frame->size.left -
2941                   self->border_width,
2942                   self->frame->area.y + self->frame->size.top -
2943                   self->border_width);
2944
2945         event.type = ConfigureNotify;
2946         event.xconfigure.display = ob_display;
2947         event.xconfigure.event = self->window;
2948         event.xconfigure.window = self->window;
2949
2950         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2951                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2952
2953         /* root window real coords */
2954         event.xconfigure.x = self->root_pos.x;
2955         event.xconfigure.y = self->root_pos.y;
2956         event.xconfigure.width = w;
2957         event.xconfigure.height = h;
2958         event.xconfigure.border_width = self->border_width;
2959         event.xconfigure.above = None;
2960         event.xconfigure.override_redirect = FALSE;
2961         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2962                    FALSE, StructureNotifyMask, &event);
2963     }
2964
2965     /* if the client is shrinking, then resize the frame before the client.
2966
2967        both of these resize sections may run, because the top one only resizes
2968        in the direction that is growing
2969      */
2970     if (send_resize_client && (w <= oldw || h <= oldh)) {
2971         frame_adjust_client_area(self->frame);
2972         XMoveResizeWindow(ob_display, self->window,
2973                           self->frame->size.left, self->frame->size.top, w, h);
2974     }
2975
2976     XFlush(ob_display);
2977 }
2978
2979 void client_fullscreen(ObClient *self, gboolean fs)
2980 {
2981     gint x, y, w, h;
2982
2983     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2984         self->fullscreen == fs) return;                   /* already done */
2985
2986     self->fullscreen = fs;
2987     client_change_state(self); /* change the state hints on the client */
2988
2989     if (fs) {
2990         self->pre_fullscreen_area = self->area;
2991         /* if the window is maximized, its area isn't all that meaningful.
2992            save it's premax area instead. */
2993         if (self->max_horz) {
2994             self->pre_fullscreen_area.x = self->pre_max_area.x;
2995             self->pre_fullscreen_area.width = self->pre_max_area.width;
2996         }
2997         if (self->max_vert) {
2998             self->pre_fullscreen_area.y = self->pre_max_area.y;
2999             self->pre_fullscreen_area.height = self->pre_max_area.height;
3000         }
3001
3002         /* these will help configure_full figure out where to fullscreen
3003            the window */
3004         x = self->area.x;
3005         y = self->area.y;
3006         w = self->area.width;
3007         h = self->area.height;
3008     } else {
3009         g_assert(self->pre_fullscreen_area.width > 0 &&
3010                  self->pre_fullscreen_area.height > 0);
3011
3012         x = self->pre_fullscreen_area.x;
3013         y = self->pre_fullscreen_area.y;
3014         w = self->pre_fullscreen_area.width;
3015         h = self->pre_fullscreen_area.height;
3016         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3017     }
3018
3019     client_setup_decor_and_functions(self, FALSE);
3020     client_move_resize(self, x, y, w, h);
3021
3022     /* and adjust our layer/stacking. do this after resizing the window,
3023        and applying decorations, because windows which fill the screen are
3024        considered "fullscreen" and it affects their layer */
3025     client_calc_layer(self);
3026
3027     if (fs) {
3028         /* try focus us when we go into fullscreen mode */
3029         client_focus(self);
3030     }
3031 }
3032
3033 static void client_iconify_recursive(ObClient *self,
3034                                      gboolean iconic, gboolean curdesk,
3035                                      gboolean hide_animation)
3036 {
3037     GSList *it;
3038     gboolean changed = FALSE;
3039
3040
3041     if (self->iconic != iconic) {
3042         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3043                  self->window);
3044
3045         if (iconic) {
3046             /* don't let non-normal windows iconify along with their parents
3047                or whatever */
3048             if (client_normal(self)) {
3049                 self->iconic = iconic;
3050
3051                 /* update the focus lists.. iconic windows go to the bottom of
3052                    the list */
3053                 focus_order_to_bottom(self);
3054
3055                 changed = TRUE;
3056             }
3057         } else {
3058             self->iconic = iconic;
3059
3060             if (curdesk && self->desktop != screen_desktop &&
3061                 self->desktop != DESKTOP_ALL)
3062                 client_set_desktop(self, screen_desktop, FALSE);
3063
3064             /* this puts it after the current focused window */
3065             focus_order_remove(self);
3066             focus_order_add_new(self);
3067
3068             changed = TRUE;
3069         }
3070     }
3071
3072     if (changed) {
3073         client_change_state(self);
3074         if (config_animate_iconify && !hide_animation)
3075             frame_begin_iconify_animation(self->frame, iconic);
3076         /* do this after starting the animation so it doesn't flash */
3077         client_showhide(self);
3078     }
3079
3080     /* iconify all direct transients, and deiconify all transients
3081        (non-direct too) */
3082     for (it = self->transients; it; it = g_slist_next(it))
3083         if (it->data != self)
3084             if (client_is_direct_child(self, it->data) || !iconic)
3085                 client_iconify_recursive(it->data, iconic, curdesk,
3086                                          hide_animation);
3087 }
3088
3089 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3090                     gboolean hide_animation)
3091 {
3092     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3093         /* move up the transient chain as far as possible first */
3094         self = client_search_top_direct_parent(self);
3095         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3096     }
3097 }
3098
3099 void client_maximize(ObClient *self, gboolean max, gint dir)
3100 {
3101     gint x, y, w, h;
3102
3103     g_assert(dir == 0 || dir == 1 || dir == 2);
3104     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3105
3106     /* check if already done */
3107     if (max) {
3108         if (dir == 0 && self->max_horz && self->max_vert) return;
3109         if (dir == 1 && self->max_horz) return;
3110         if (dir == 2 && self->max_vert) return;
3111     } else {
3112         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3113         if (dir == 1 && !self->max_horz) return;
3114         if (dir == 2 && !self->max_vert) return;
3115     }
3116
3117     /* these will help configure_full figure out which screen to fill with
3118        the window */
3119     x = self->area.x;
3120     y = self->area.y;
3121     w = self->area.width;
3122     h = self->area.height;
3123
3124     if (max) {
3125         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3126             RECT_SET(self->pre_max_area,
3127                      self->area.x, self->pre_max_area.y,
3128                      self->area.width, self->pre_max_area.height);
3129         }
3130         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3131             RECT_SET(self->pre_max_area,
3132                      self->pre_max_area.x, self->area.y,
3133                      self->pre_max_area.width, self->area.height);
3134         }
3135     } else {
3136         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3137             g_assert(self->pre_max_area.width > 0);
3138
3139             x = self->pre_max_area.x;
3140             w = self->pre_max_area.width;
3141
3142             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3143                      0, self->pre_max_area.height);
3144         }
3145         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3146             g_assert(self->pre_max_area.height > 0);
3147
3148             y = self->pre_max_area.y;
3149             h = self->pre_max_area.height;
3150
3151             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3152                      self->pre_max_area.width, 0);
3153         }
3154     }
3155
3156     if (dir == 0 || dir == 1) /* horz */
3157         self->max_horz = max;
3158     if (dir == 0 || dir == 2) /* vert */
3159         self->max_vert = max;
3160
3161     client_change_state(self); /* change the state hints on the client */
3162
3163     client_setup_decor_and_functions(self, FALSE);
3164     client_move_resize(self, x, y, w, h);
3165 }
3166
3167 void client_shade(ObClient *self, gboolean shade)
3168 {
3169     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3170          shade) ||                         /* can't shade */
3171         self->shaded == shade) return;     /* already done */
3172
3173     self->shaded = shade;
3174     client_change_state(self);
3175     client_change_wm_state(self); /* the window is being hidden/shown */
3176     /* resize the frame to just the titlebar */
3177     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3178 }
3179
3180 void client_close(ObClient *self)
3181 {
3182     XEvent ce;
3183
3184     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3185
3186     /* in the case that the client provides no means to requesting that it
3187        close, we just kill it */
3188     if (!self->delete_window)
3189         client_kill(self);
3190
3191     /*
3192       XXX: itd be cool to do timeouts and shit here for killing the client's
3193       process off
3194       like... if the window is around after 5 seconds, then the close button
3195       turns a nice red, and if this function is called again, the client is
3196       explicitly killed.
3197     */
3198
3199     ce.xclient.type = ClientMessage;
3200     ce.xclient.message_type =  prop_atoms.wm_protocols;
3201     ce.xclient.display = ob_display;
3202     ce.xclient.window = self->window;
3203     ce.xclient.format = 32;
3204     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3205     ce.xclient.data.l[1] = event_curtime;
3206     ce.xclient.data.l[2] = 0l;
3207     ce.xclient.data.l[3] = 0l;
3208     ce.xclient.data.l[4] = 0l;
3209     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3210 }
3211
3212 void client_kill(ObClient *self)
3213 {
3214     XKillClient(ob_display, self->window);
3215 }
3216
3217 void client_hilite(ObClient *self, gboolean hilite)
3218 {
3219     if (self->demands_attention == hilite)
3220         return; /* no change */
3221
3222     /* don't allow focused windows to hilite */
3223     self->demands_attention = hilite && !client_focused(self);
3224     if (self->frame != NULL) { /* if we're mapping, just set the state */
3225         if (self->demands_attention)
3226             frame_flash_start(self->frame);
3227         else
3228             frame_flash_stop(self->frame);
3229         client_change_state(self);
3230     }
3231 }
3232
3233 void client_set_desktop_recursive(ObClient *self,
3234                                   guint target,
3235                                   gboolean donthide)
3236 {
3237     guint old;
3238     GSList *it;
3239
3240     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3241
3242         ob_debug("Setting desktop %u\n", target+1);
3243
3244         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3245
3246         old = self->desktop;
3247         self->desktop = target;
3248         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3249         /* the frame can display the current desktop state */
3250         frame_adjust_state(self->frame);
3251         /* 'move' the window to the new desktop */
3252         if (!donthide)
3253             client_showhide(self);
3254         /* raise if it was not already on the desktop */
3255         if (old != DESKTOP_ALL)
3256             stacking_raise(CLIENT_AS_WINDOW(self));
3257         /* the new desktop's geometry may be different, so we may need to
3258            resize, for example if we are maximized */
3259         client_reconfigure(self);
3260         if (STRUT_EXISTS(self->strut))
3261             screen_update_areas();
3262     }
3263
3264     /* move all transients */
3265     for (it = self->transients; it; it = g_slist_next(it))
3266         if (it->data != self)
3267             if (client_is_direct_child(self, it->data))
3268                 client_set_desktop_recursive(it->data, target, donthide);
3269 }
3270
3271 void client_set_desktop(ObClient *self, guint target, gboolean donthide)
3272 {
3273     self = client_search_top_direct_parent(self);
3274     client_set_desktop_recursive(self, target, donthide);
3275 }
3276
3277 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3278 {
3279     while (child != parent && (child = client_direct_parent(child)));
3280     return child == parent;
3281 }
3282
3283 ObClient *client_search_modal_child(ObClient *self)
3284 {
3285     GSList *it;
3286     ObClient *ret;
3287
3288     for (it = self->transients; it; it = g_slist_next(it)) {
3289         ObClient *c = it->data;
3290         if ((ret = client_search_modal_child(c))) return ret;
3291         if (c->modal) return c;
3292     }
3293     return NULL;
3294 }
3295
3296 gboolean client_validate(ObClient *self)
3297 {
3298     XEvent e;
3299
3300     XSync(ob_display, FALSE); /* get all events on the server */
3301
3302     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3303         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3304         XPutBackEvent(ob_display, &e);
3305         return FALSE;
3306     }
3307
3308     return TRUE;
3309 }
3310
3311 void client_set_wm_state(ObClient *self, glong state)
3312 {
3313     if (state == self->wmstate) return; /* no change */
3314
3315     switch (state) {
3316     case IconicState:
3317         client_iconify(self, TRUE, TRUE, FALSE);
3318         break;
3319     case NormalState:
3320         client_iconify(self, FALSE, TRUE, FALSE);
3321         break;
3322     }
3323 }
3324
3325 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3326 {
3327     gboolean shaded = self->shaded;
3328     gboolean fullscreen = self->fullscreen;
3329     gboolean undecorated = self->undecorated;
3330     gboolean max_horz = self->max_horz;
3331     gboolean max_vert = self->max_vert;
3332     gboolean modal = self->modal;
3333     gboolean iconic = self->iconic;
3334     gboolean demands_attention = self->demands_attention;
3335     gboolean above = self->above;
3336     gboolean below = self->below;
3337     gint i;
3338
3339     if (!(action == prop_atoms.net_wm_state_add ||
3340           action == prop_atoms.net_wm_state_remove ||
3341           action == prop_atoms.net_wm_state_toggle))
3342         /* an invalid action was passed to the client message, ignore it */
3343         return;
3344
3345     for (i = 0; i < 2; ++i) {
3346         Atom state = i == 0 ? data1 : data2;
3347
3348         if (!state) continue;
3349
3350         /* if toggling, then pick whether we're adding or removing */
3351         if (action == prop_atoms.net_wm_state_toggle) {
3352             if (state == prop_atoms.net_wm_state_modal)
3353                 action = modal ? prop_atoms.net_wm_state_remove :
3354                     prop_atoms.net_wm_state_add;
3355             else if (state == prop_atoms.net_wm_state_maximized_vert)
3356                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3357                     prop_atoms.net_wm_state_add;
3358             else if (state == prop_atoms.net_wm_state_maximized_horz)
3359                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3360                     prop_atoms.net_wm_state_add;
3361             else if (state == prop_atoms.net_wm_state_shaded)
3362                 action = shaded ? prop_atoms.net_wm_state_remove :
3363                     prop_atoms.net_wm_state_add;
3364             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3365                 action = self->skip_taskbar ?
3366                     prop_atoms.net_wm_state_remove :
3367                     prop_atoms.net_wm_state_add;
3368             else if (state == prop_atoms.net_wm_state_skip_pager)
3369                 action = self->skip_pager ?
3370                     prop_atoms.net_wm_state_remove :
3371                     prop_atoms.net_wm_state_add;
3372             else if (state == prop_atoms.net_wm_state_hidden)
3373                 action = self->iconic ?
3374                     prop_atoms.net_wm_state_remove :
3375                     prop_atoms.net_wm_state_add;
3376             else if (state == prop_atoms.net_wm_state_fullscreen)
3377                 action = fullscreen ?
3378                     prop_atoms.net_wm_state_remove :
3379                     prop_atoms.net_wm_state_add;
3380             else if (state == prop_atoms.net_wm_state_above)
3381                 action = self->above ? prop_atoms.net_wm_state_remove :
3382                     prop_atoms.net_wm_state_add;
3383             else if (state == prop_atoms.net_wm_state_below)
3384                 action = self->below ? prop_atoms.net_wm_state_remove :
3385                     prop_atoms.net_wm_state_add;
3386             else if (state == prop_atoms.net_wm_state_demands_attention)
3387                 action = self->demands_attention ?
3388                     prop_atoms.net_wm_state_remove :
3389                     prop_atoms.net_wm_state_add;
3390             else if (state == prop_atoms.ob_wm_state_undecorated)
3391                 action = undecorated ? prop_atoms.net_wm_state_remove :
3392                     prop_atoms.net_wm_state_add;
3393         }
3394
3395         if (action == prop_atoms.net_wm_state_add) {
3396             if (state == prop_atoms.net_wm_state_modal) {
3397                 modal = TRUE;
3398             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3399                 max_vert = TRUE;
3400             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3401                 max_horz = TRUE;
3402             } else if (state == prop_atoms.net_wm_state_shaded) {
3403                 shaded = TRUE;
3404             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3405                 self->skip_taskbar = TRUE;
3406             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3407                 self->skip_pager = TRUE;
3408             } else if (state == prop_atoms.net_wm_state_hidden) {
3409                 iconic = TRUE;
3410             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3411                 fullscreen = TRUE;
3412             } else if (state == prop_atoms.net_wm_state_above) {
3413                 above = TRUE;
3414                 below = FALSE;
3415             } else if (state == prop_atoms.net_wm_state_below) {
3416                 above = FALSE;
3417                 below = TRUE;
3418             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3419                 demands_attention = TRUE;
3420             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3421                 undecorated = TRUE;
3422             }
3423
3424         } else { /* action == prop_atoms.net_wm_state_remove */
3425             if (state == prop_atoms.net_wm_state_modal) {
3426                 modal = FALSE;
3427             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3428                 max_vert = FALSE;
3429             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3430                 max_horz = FALSE;
3431             } else if (state == prop_atoms.net_wm_state_shaded) {
3432                 shaded = FALSE;
3433             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3434                 self->skip_taskbar = FALSE;
3435             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3436                 self->skip_pager = FALSE;
3437             } else if (state == prop_atoms.net_wm_state_hidden) {
3438                 iconic = FALSE;
3439             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3440                 fullscreen = FALSE;
3441             } else if (state == prop_atoms.net_wm_state_above) {
3442                 above = FALSE;
3443             } else if (state == prop_atoms.net_wm_state_below) {
3444                 below = FALSE;
3445             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3446                 demands_attention = FALSE;
3447             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3448                 undecorated = FALSE;
3449             }
3450         }
3451     }
3452
3453     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3454         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3455             /* toggling both */
3456             if (max_horz == max_vert) { /* both going the same way */
3457                 client_maximize(self, max_horz, 0);
3458             } else {
3459                 client_maximize(self, max_horz, 1);
3460                 client_maximize(self, max_vert, 2);
3461             }
3462         } else {
3463             /* toggling one */
3464             if (max_horz != self->max_horz)
3465                 client_maximize(self, max_horz, 1);
3466             else
3467                 client_maximize(self, max_vert, 2);
3468         }
3469     }
3470     /* change fullscreen state before shading, as it will affect if the window
3471        can shade or not */
3472     if (fullscreen != self->fullscreen)
3473         client_fullscreen(self, fullscreen);
3474     if (shaded != self->shaded)
3475         client_shade(self, shaded);
3476     if (undecorated != self->undecorated)
3477         client_set_undecorated(self, undecorated);
3478     if (above != self->above || below != self->below) {
3479         self->above = above;
3480         self->below = below;
3481         client_calc_layer(self);
3482     }
3483
3484     if (modal != self->modal) {
3485         self->modal = modal;
3486         /* when a window changes modality, then its stacking order with its
3487            transients needs to change */
3488         stacking_raise(CLIENT_AS_WINDOW(self));
3489
3490         /* it also may get focused. if something is focused that shouldn't
3491            be focused anymore, then move the focus */
3492         if (focus_client && client_focus_target(focus_client) != focus_client)
3493             client_focus(focus_client);
3494     }
3495
3496     if (iconic != self->iconic)
3497         client_iconify(self, iconic, FALSE, FALSE);
3498
3499     if (demands_attention != self->demands_attention)
3500         client_hilite(self, demands_attention);
3501
3502     client_change_state(self); /* change the hint to reflect these changes */
3503 }
3504
3505 ObClient *client_focus_target(ObClient *self)
3506 {
3507     ObClient *child = NULL;
3508
3509     child = client_search_modal_child(self);
3510     if (child) return child;
3511     return self;
3512 }
3513
3514 gboolean client_can_focus(ObClient *self)
3515 {
3516     /* choose the correct target */
3517     self = client_focus_target(self);
3518
3519     if (!self->frame->visible)
3520         return FALSE;
3521
3522     if (!(self->can_focus || self->focus_notify))
3523         return FALSE;
3524
3525     return TRUE;
3526 }
3527
3528 gboolean client_focus(ObClient *self)
3529 {
3530     /* we might not focus this window, so if we have modal children which would
3531        be focused instead, bring them to this desktop */
3532     client_bring_modal_windows(self);
3533
3534     /* choose the correct target */
3535     self = client_focus_target(self);
3536
3537     if (!client_can_focus(self)) {
3538         ob_debug_type(OB_DEBUG_FOCUS,
3539                       "Client %s can't be focused\n", self->title);
3540         return FALSE;
3541     }
3542
3543     ob_debug_type(OB_DEBUG_FOCUS,
3544                   "Focusing client \"%s\" (0x%x) at time %u\n",
3545                   self->title, self->window, event_curtime);
3546
3547     /* if there is a grab going on, then we need to cancel it. if we move
3548        focus during the grab, applications will get NotifyWhileGrabbed events
3549        and ignore them !
3550
3551        actions should not rely on being able to move focus during an
3552        interactive grab.
3553     */
3554     event_cancel_all_key_grabs();
3555
3556     xerror_set_ignore(TRUE);
3557     xerror_occured = FALSE;
3558
3559     if (self->can_focus) {
3560         /* This can cause a BadMatch error with CurrentTime, or if an app
3561            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3562         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3563                        event_curtime);
3564     }
3565
3566     if (self->focus_notify) {
3567         XEvent ce;
3568         ce.xclient.type = ClientMessage;
3569         ce.xclient.message_type = prop_atoms.wm_protocols;
3570         ce.xclient.display = ob_display;
3571         ce.xclient.window = self->window;
3572         ce.xclient.format = 32;
3573         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3574         ce.xclient.data.l[1] = event_curtime;
3575         ce.xclient.data.l[2] = 0l;
3576         ce.xclient.data.l[3] = 0l;
3577         ce.xclient.data.l[4] = 0l;
3578         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3579     }
3580
3581     xerror_set_ignore(FALSE);
3582
3583     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3584     return !xerror_occured;
3585 }
3586
3587 /*! Present the client to the user.
3588   @param raise If the client should be raised or not. You should only set
3589                raise to false if you don't care if the window is completely
3590                hidden.
3591 */
3592 static void client_present(ObClient *self, gboolean here, gboolean raise)
3593 {
3594     /* if using focus_delay, stop the timer now so that focus doesn't
3595        go moving on us */
3596     event_halt_focus_delay();
3597
3598     if (client_normal(self) && screen_showing_desktop)
3599         screen_show_desktop(FALSE, self);
3600     if (self->iconic)
3601         client_iconify(self, FALSE, here, FALSE);
3602     if (self->desktop != DESKTOP_ALL &&
3603         self->desktop != screen_desktop)
3604     {
3605         if (here)
3606             client_set_desktop(self, screen_desktop, FALSE);
3607         else
3608             screen_set_desktop(self->desktop, FALSE);
3609     } else if (!self->frame->visible)
3610         /* if its not visible for other reasons, then don't mess
3611            with it */
3612         return;
3613     if (self->shaded)
3614         client_shade(self, FALSE);
3615     if (raise)
3616         stacking_raise(CLIENT_AS_WINDOW(self));
3617
3618     client_focus(self);
3619 }
3620
3621 void client_activate(ObClient *self, gboolean here, gboolean user)
3622 {
3623     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3624     gboolean allow = FALSE;
3625
3626     /* if the currently focused app doesn't set a user_time, then it can't
3627        benefit from any focus stealing prevention.
3628
3629        if the timestamp is missing in the request then let it go through
3630        even if it is source=app, because EVERY APPLICATION DOES THIS because
3631        GTK IS VERY BUGGY AND HARDCODES source=application... WHY!?
3632     */
3633     if (!last_time || !event_curtime)
3634         allow = TRUE;
3635     /* otherwise, if they didn't give a time stamp or if it is too old, they
3636        don't get focus */
3637     else
3638         allow = event_time_after(event_curtime, last_time);
3639
3640     ob_debug_type(OB_DEBUG_FOCUS,
3641                   "Want to activate window 0x%x with time %u (last time %u), "
3642                   "source=%s allowing? %d\n",
3643                   self->window, event_curtime, last_time,
3644                   (user ? "user" : "application"), allow);
3645
3646     if (allow)
3647         client_present(self, here, TRUE);
3648     else
3649         /* don't focus it but tell the user it wants attention */
3650         client_hilite(self, TRUE);
3651 }
3652
3653 static void client_bring_windows_recursive(ObClient *self,
3654                                            guint desktop,
3655                                            gboolean helpers,
3656                                            gboolean modals,
3657                                            gboolean iconic)
3658 {
3659     GSList *it;
3660
3661     for (it = self->transients; it; it = g_slist_next(it))
3662         client_bring_windows_recursive(it->data, desktop,
3663                                        helpers, modals, iconic);
3664
3665     if (((helpers && client_helper(self)) ||
3666          (modals && self->modal)) &&
3667         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3668          (iconic && self->iconic)))
3669     {
3670         if (iconic && self->iconic)
3671             client_iconify(self, FALSE, TRUE, FALSE);
3672         else
3673             client_set_desktop(self, desktop, FALSE);
3674     }
3675 }
3676
3677 void client_bring_helper_windows(ObClient *self)
3678 {
3679     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3680 }
3681
3682 void client_bring_modal_windows(ObClient *self)
3683 {
3684     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3685 }
3686
3687 gboolean client_focused(ObClient *self)
3688 {
3689     return self == focus_client;
3690 }
3691
3692 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3693 {
3694     guint i;
3695     gulong min_diff, min_i;
3696
3697     if (!self->nicons) {
3698         ObClientIcon *parent = NULL;
3699         GSList *it;
3700
3701         for (it = self->parents; it; it = g_slist_next(it)) {
3702             ObClient *c = it->data;
3703             if ((parent = client_icon_recursive(c, w, h)))
3704                 break;
3705         }
3706
3707         return parent;
3708     }
3709
3710     /* some kind of crappy approximation to find the icon closest in size to
3711        what we requested, but icons are generally all the same ratio as
3712        eachother so it's good enough. */
3713
3714     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3715     min_i = 0;
3716
3717     for (i = 1; i < self->nicons; ++i) {
3718         gulong diff;
3719
3720         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3721         if (diff < min_diff) {
3722             min_diff = diff;
3723             min_i = i;
3724         }
3725     }
3726     return &self->icons[min_i];
3727 }
3728
3729 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3730 {
3731     ObClientIcon *ret;
3732     static ObClientIcon deficon;
3733
3734     if (!(ret = client_icon_recursive(self, w, h))) {
3735         deficon.width = deficon.height = 48;
3736         deficon.data = ob_rr_theme->def_win_icon;
3737         ret = &deficon;
3738     }
3739     return ret;
3740 }
3741
3742 void client_set_layer(ObClient *self, gint layer)
3743 {
3744     if (layer < 0) {
3745         self->below = TRUE;
3746         self->above = FALSE;
3747     } else if (layer == 0) {
3748         self->below = self->above = FALSE;
3749     } else {
3750         self->below = FALSE;
3751         self->above = TRUE;
3752     }
3753     client_calc_layer(self);
3754     client_change_state(self); /* reflect this in the state hints */
3755 }
3756
3757 void client_set_undecorated(ObClient *self, gboolean undecorated)
3758 {
3759     if (self->undecorated != undecorated &&
3760         /* don't let it undecorate if the function is missing, but let
3761            it redecorate */
3762         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3763     {
3764         self->undecorated = undecorated;
3765         client_setup_decor_and_functions(self, TRUE);
3766         client_change_state(self); /* reflect this in the state hints */
3767     }
3768 }
3769
3770 guint client_monitor(ObClient *self)
3771 {
3772     return screen_find_monitor(&self->frame->area);
3773 }
3774
3775 ObClient *client_direct_parent(ObClient *self)
3776 {
3777     if (!self->parents) return NULL;
3778     if (self->transient_for_group) return NULL;
3779     return self->parents->data;
3780 }
3781
3782 ObClient *client_search_top_direct_parent(ObClient *self)
3783 {
3784     ObClient *p;
3785     while ((p = client_direct_parent(self))) self = p;
3786     return self;
3787 }
3788
3789 static GSList *client_search_all_top_parents_internal(ObClient *self,
3790                                                       gboolean bylayer,
3791                                                       ObStackingLayer layer)
3792 {
3793     GSList *ret;
3794     ObClient *p;
3795
3796     /* move up the direct transient chain as far as possible */
3797     while ((p = client_direct_parent(self)) &&
3798            (!bylayer || p->layer == layer))
3799         self = p;
3800
3801     if (!self->parents)
3802         ret = g_slist_prepend(NULL, self);
3803     else
3804         ret = g_slist_copy(self->parents);
3805
3806     return ret;
3807 }
3808
3809 GSList *client_search_all_top_parents(ObClient *self)
3810 {
3811     return client_search_all_top_parents_internal(self, FALSE, 0);
3812 }
3813
3814 GSList *client_search_all_top_parents_layer(ObClient *self)
3815 {
3816     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3817 }
3818
3819 ObClient *client_search_focus_parent(ObClient *self)
3820 {
3821     GSList *it;
3822
3823     for (it = self->parents; it; it = g_slist_next(it))
3824         if (client_focused(it->data)) return it->data;
3825
3826     return NULL;
3827 }
3828
3829 ObClient *client_search_parent(ObClient *self, ObClient *search)
3830 {
3831     GSList *it;
3832
3833     for (it = self->parents; it; it = g_slist_next(it))
3834         if (it->data == search) return search;
3835
3836     return NULL;
3837 }
3838
3839 ObClient *client_search_transient(ObClient *self, ObClient *search)
3840 {
3841     GSList *sit;
3842
3843     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3844         if (sit->data == search)
3845             return search;
3846         if (client_search_transient(sit->data, search))
3847             return search;
3848     }
3849     return NULL;
3850 }
3851
3852 #define WANT_EDGE(cur, c) \
3853             if (cur == c)                                                     \
3854                 continue;                                                     \
3855             if (c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&  \
3856                 cur->desktop != screen_desktop)                               \
3857                 continue;                                                     \
3858             if (cur->iconic)                                                  \
3859                 continue;
3860
3861 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3862             if ((his_edge_start >= my_edge_start && \
3863                  his_edge_start <= my_edge_end) ||  \
3864                 (my_edge_start >= his_edge_start && \
3865                  my_edge_start <= his_edge_end))    \
3866                 dest = his_offset;
3867
3868 /* finds the nearest edge in the given direction from the current client
3869  * note to self: the edge is the -frame- edge (the actual one), not the
3870  * client edge.
3871  */
3872 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3873 {
3874     gint dest, monitor_dest;
3875     gint my_edge_start, my_edge_end, my_offset;
3876     GList *it;
3877     Rect *a, *mon;
3878
3879     if(!client_list)
3880         return -1;
3881
3882     a = screen_area(c->desktop, SCREEN_AREA_ALL_MONITORS, &c->frame->area);
3883     mon = screen_area(c->desktop, SCREEN_AREA_ONE_MONITOR, &c->frame->area);
3884
3885     switch(dir) {
3886     case OB_DIRECTION_NORTH:
3887         my_edge_start = c->frame->area.x;
3888         my_edge_end = c->frame->area.x + c->frame->area.width;
3889         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3890
3891         /* default: top of screen */
3892         dest = a->y + (hang ? c->frame->area.height : 0);
3893         monitor_dest = mon->y + (hang ? c->frame->area.height : 0);
3894         /* if the monitor edge comes before the screen edge, */
3895         /* use that as the destination instead. (For xinerama) */
3896         if (monitor_dest != dest && my_offset > monitor_dest)
3897             dest = monitor_dest;
3898
3899         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3900             gint his_edge_start, his_edge_end, his_offset;
3901             ObClient *cur = it->data;
3902
3903             WANT_EDGE(cur, c)
3904
3905             his_edge_start = cur->frame->area.x;
3906             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3907             his_offset = cur->frame->area.y +
3908                          (hang ? 0 : cur->frame->area.height);
3909
3910             if(his_offset + 1 > my_offset)
3911                 continue;
3912
3913             if(his_offset < dest)
3914                 continue;
3915
3916             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3917         }
3918         break;
3919     case OB_DIRECTION_SOUTH:
3920         my_edge_start = c->frame->area.x;
3921         my_edge_end = c->frame->area.x + c->frame->area.width;
3922         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3923
3924         /* default: bottom of screen */
3925         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3926         monitor_dest = mon->y + mon->height -
3927                        (hang ? c->frame->area.height : 0);
3928         /* if the monitor edge comes before the screen edge, */
3929         /* use that as the destination instead. (For xinerama) */
3930         if (monitor_dest != dest && my_offset < monitor_dest)
3931             dest = monitor_dest;
3932
3933         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3934             gint his_edge_start, his_edge_end, his_offset;
3935             ObClient *cur = it->data;
3936
3937             WANT_EDGE(cur, c)
3938
3939             his_edge_start = cur->frame->area.x;
3940             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3941             his_offset = cur->frame->area.y +
3942                          (hang ? cur->frame->area.height : 0);
3943
3944
3945             if(his_offset - 1 < my_offset)
3946                 continue;
3947
3948             if(his_offset > dest)
3949                 continue;
3950
3951             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3952         }
3953         break;
3954     case OB_DIRECTION_WEST:
3955         my_edge_start = c->frame->area.y;
3956         my_edge_end = c->frame->area.y + c->frame->area.height;
3957         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3958
3959         /* default: leftmost egde of screen */
3960         dest = a->x + (hang ? c->frame->area.width : 0);
3961         monitor_dest = mon->x + (hang ? c->frame->area.width : 0);
3962         /* if the monitor edge comes before the screen edge, */
3963         /* use that as the destination instead. (For xinerama) */
3964         if (monitor_dest != dest && my_offset > monitor_dest)
3965             dest = monitor_dest;
3966
3967         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3968             gint his_edge_start, his_edge_end, his_offset;
3969             ObClient *cur = it->data;
3970
3971             WANT_EDGE(cur, c)
3972
3973             his_edge_start = cur->frame->area.y;
3974             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3975             his_offset = cur->frame->area.x +
3976                          (hang ? 0 : cur->frame->area.width);
3977
3978             if(his_offset + 1 > my_offset)
3979                 continue;
3980
3981             if(his_offset < dest)
3982                 continue;
3983
3984             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3985         }
3986        break;
3987     case OB_DIRECTION_EAST:
3988         my_edge_start = c->frame->area.y;
3989         my_edge_end = c->frame->area.y + c->frame->area.height;
3990         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3991
3992         /* default: rightmost edge of screen */
3993         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3994         monitor_dest = mon->x + mon->width -
3995                        (hang ? c->frame->area.width : 0);
3996         /* if the monitor edge comes before the screen edge, */
3997         /* use that as the destination instead. (For xinerama) */
3998         if (monitor_dest != dest && my_offset < monitor_dest)
3999             dest = monitor_dest;
4000
4001         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
4002             gint his_edge_start, his_edge_end, his_offset;
4003             ObClient *cur = it->data;
4004
4005             WANT_EDGE(cur, c)
4006
4007             his_edge_start = cur->frame->area.y;
4008             his_edge_end = cur->frame->area.y + cur->frame->area.height;
4009             his_offset = cur->frame->area.x +
4010                          (hang ? cur->frame->area.width : 0);
4011
4012             if(his_offset - 1 < my_offset)
4013                 continue;
4014
4015             if(his_offset > dest)
4016                 continue;
4017
4018             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4019         }
4020         break;
4021     case OB_DIRECTION_NORTHEAST:
4022     case OB_DIRECTION_SOUTHEAST:
4023     case OB_DIRECTION_NORTHWEST:
4024     case OB_DIRECTION_SOUTHWEST:
4025         /* not implemented */
4026     default:
4027         g_assert_not_reached();
4028         dest = 0; /* suppress warning */
4029     }
4030
4031     g_free(a);
4032     g_free(mon);
4033     return dest;
4034 }
4035
4036 ObClient* client_under_pointer()
4037 {
4038     gint x, y;
4039     GList *it;
4040     ObClient *ret = NULL;
4041
4042     if (screen_pointer_pos(&x, &y)) {
4043         for (it = stacking_list; it; it = g_list_next(it)) {
4044             if (WINDOW_IS_CLIENT(it->data)) {
4045                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4046                 if (c->frame->visible &&
4047                     /* check the desktop, this is done during desktop
4048                        switching and windows are shown/hidden status is not
4049                        reliable */
4050                     (c->desktop == screen_desktop ||
4051                      c->desktop == DESKTOP_ALL) &&
4052                     /* ignore all animating windows */
4053                     !frame_iconify_animating(c->frame) &&
4054                     RECT_CONTAINS(c->frame->area, x, y))
4055                 {
4056                     ret = c;
4057                     break;
4058                 }
4059             }
4060         }
4061     }
4062     return ret;
4063 }
4064
4065 gboolean client_has_group_siblings(ObClient *self)
4066 {
4067     return self->group && self->group->members->next;
4068 }