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_monitor(self->desktop, client_monitor(self),
 407                                       &placer);
 408
 409         /* shrink by the frame's area */
 410         a->width -= self->frame->size.left + self->frame->size.right;
 411         a->height -= self->frame->size.top + self->frame->size.bottom;
 412
 413         /* fit the window inside the area */
 414         if (placew > a->width || self->area.height > a->height) {
 415             placew = MIN(self->area.width, a->width);
 416             placeh = MIN(self->area.height, a->height);
 417
 418             ob_debug("setting window size to %dx%d\n",
 419                      self->area.width, self->area.height);
 420         }
 421         g_free(a);
 422     }
 423
 424
 425     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 426              "some restrictions may apply\n",
 427              self->window, placex, placey, placew, placeh);
 428     if (self->session)
 429         ob_debug("  but session requested %d, %d  %d x %d instead, "
 430                  "overriding\n",
 431                  self->session->x, self->session->y,
 432                  self->session->w, self->session->h);
 433
 434     /* do this after the window is placed, so the premax/prefullscreen numbers
 435        won't be all wacko!!
 436
 437        this also places the window
 438     */
 439     client_apply_startup_state(self, placex, placey, placew, placeh);
 440
 441     if (activate) {
 442         guint32 last_time = focus_client ?
 443             focus_client->user_time : CurrentTime;
 444
 445         /* This is focus stealing prevention */
 446         ob_debug_type(OB_DEBUG_FOCUS,
 447                       "Want to focus new window 0x%x with time %u "
 448                       "(last time %u)\n",
 449                       self->window, self->user_time, last_time);
 450
 451         /* if it's on another desktop */
 452         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 453             && /* the timestamp is from before you changed desktops */
 454             self->user_time && screen_desktop_user_time &&
 455             !event_time_after(self->user_time, screen_desktop_user_time))
 456         {
 457             activate = FALSE;
 458             ob_debug_type(OB_DEBUG_FOCUS,
 459                           "Not focusing the window because its on another "
 460                           "desktop\n");
 461         }
 462         /* If something is focused, and it's not our relative... */
 463         else if (focus_client && client_search_focus_tree_full(self) == NULL &&
 464                  client_search_focus_group_full(self) == NULL)
 465         {
 466             /* If time stamp is old, don't steal focus */
 467             if (self->user_time && last_time &&
 468                 !event_time_after(self->user_time, last_time))
 469             {
 470                 activate = FALSE;
 471                 ob_debug_type(OB_DEBUG_FOCUS,
 472                               "Not focusing the window because the time is "
 473                               "too old\n");
 474             }
 475             /* If its a transient (and parents aren't focused) and the time
 476                is ambiguous (either the current focus target doesn't have
 477                a timestamp, or they are the same (we probably inherited it
 478                from them) */
 479             else if (client_has_parent(self) &&
 480                      (!last_time || self->user_time == last_time))
 481             {
 482                 activate = FALSE;
 483                 ob_debug_type(OB_DEBUG_FOCUS,
 484                               "Not focusing the window because it is a "
 485                               "transient, and the time is very ambiguous\n");
 486             }
 487             /* Don't steal focus from globally active clients.
 488                I stole this idea from KWin. It seems nice.
 489              */
 490             else if (!(focus_client->can_focus ||
 491                        focus_client->focus_notify))
 492             {
 493                 activate = FALSE;
 494                 ob_debug_type(OB_DEBUG_FOCUS,
 495                               "Not focusing the window because a globally "
 496                               "active client has focus\n");
 497             }
 498             /* Don't move focus if it's not going to go to this window
 499                anyway */
 500             else if (client_focus_target(self) != self) {
 501                 activate = FALSE;
 502                 ob_debug_type(OB_DEBUG_FOCUS,
 503                               "Not focusing the window because another window "
 504                               "would get the focus anyway\n");
 505             }
 506         }
 507
 508         if (!activate) {
 509             ob_debug_type(OB_DEBUG_FOCUS,
 510                           "Focus stealing prevention activated for %s with "
 511                           "time %u (last time %u)\n",
 512                           self->title, self->user_time, last_time);
 513             /* if the client isn't focused, then hilite it so the user
 514                knows it is there */
 515             client_hilite(self, TRUE);
 516         }
 517     }
 518     else {
 519         /* This may look rather odd. Well it's because new windows are added
 520            to the stacking order non-intrusively. If we're not going to focus
 521            the new window or hilite it, then we raise it to the top. This will
 522            take affect for things that don't get focused like splash screens.
 523            Also if you don't have focus_new enabled, then it's going to get
 524            raised to the top. Legacy begets legacy I guess?
 525         */
 526         if (!client_restore_session_stacking(self))
 527             stacking_raise(CLIENT_AS_WINDOW(self));
 528     }
 529
 530     mouse_grab_for_client(self, TRUE);
 531
 532     /* this has to happen before we try focus the window, but we want it to
 533        happen after the client's stacking has been determined or it looks bad
 534     */
 535     {
 536         gulong ignore_start;
 537         if (!config_focus_under_mouse)
 538             ignore_start = event_start_ignore_all_enters();
 539
 540         client_show(self);
 541
 542         if (!config_focus_under_mouse)
 543             event_end_ignore_all_enters(ignore_start);
 544     }
 545
 546     if (activate) {
 547         gboolean stacked = client_restore_session_stacking(self);
 548         client_present(self, FALSE, !stacked);
 549     }
 550
 551     /* add to client list/map */
 552     client_list = g_list_append(client_list, self);
 553     g_hash_table_insert(window_map, &self->window, self);
 554
 555     /* this has to happen after we're in the client_list */
 556     if (STRUT_EXISTS(self->strut))
 557         screen_update_areas();
 558
 559     /* update the list hints */
 560     client_set_list();
 561
 562     /* free the ObAppSettings shallow copy */
 563     g_free(settings);
 564
 565     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 566              window, self->frame->window, self->class);
 567
 568     return;
 569 }
 570
 571
 572 ObClient *client_fake_manage(Window window)
 573 {
 574     ObClient *self;
 575     ObAppSettings *settings;
 576
 577     ob_debug("Pretend-managing window: %lx\n", window);
 578
 579     /* do this minimal stuff to figure out the client's decorations */
 580
 581     self = g_new0(ObClient, 1);
 582     self->window = window;
 583
 584     client_get_all(self, FALSE);
 585     /* per-app settings override stuff, and return the settings for other
 586        uses too. this returns a shallow copy that needs to be freed */
 587     settings = client_get_settings_state(self);
 588
 589     client_setup_decor_and_functions(self, FALSE);
 590
 591     /* create the decoration frame for the client window and adjust its size */
 592     self->frame = frame_new(self);
 593     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 594
 595     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 596              self->frame->size.left, self->frame->size.right,
 597              self->frame->size.top, self->frame->size.bottom);
 598
 599     /* free the ObAppSettings shallow copy */
 600     g_free(settings);
 601
 602     return self;
 603 }
 604
 605 void client_unmanage_all()
 606 {
 607     while (client_list != NULL)
 608         client_unmanage(client_list->data);
 609 }
 610
 611 void client_unmanage(ObClient *self)
 612 {
 613     guint j;
 614     GSList *it;
 615     gulong ignore_start;
 616
 617     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 618              self->window, self->frame->window,
 619              self->class, self->title ? self->title : "");
 620
 621     g_assert(self != NULL);
 622
 623     /* we dont want events no more. do this before hiding the frame so we
 624        don't generate more events */
 625     XSelectInput(ob_display, self->window, NoEventMask);
 626
 627     /* ignore enter events from the unmap so it doesnt mess with the focus */
 628     if (!config_focus_under_mouse)
 629         ignore_start = event_start_ignore_all_enters();
 630
 631     frame_hide(self->frame);
 632     /* flush to send the hide to the server quickly */
 633     XFlush(ob_display);
 634
 635     if (!config_focus_under_mouse)
 636         event_end_ignore_all_enters(ignore_start);
 637
 638     mouse_grab_for_client(self, FALSE);
 639
 640     /* remove the window from our save set */
 641     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 642
 643     /* kill the property windows */
 644     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 645
 646     /* update the focus lists */
 647     focus_order_remove(self);
 648     if (client_focused(self)) {
 649         /* don't leave an invalid focus_client */
 650         focus_client = NULL;
 651     }
 652
 653     client_list = g_list_remove(client_list, self);
 654     stacking_remove(self);
 655     g_hash_table_remove(window_map, &self->window);
 656
 657     /* once the client is out of the list, update the struts to remove its
 658        influence */
 659     if (STRUT_EXISTS(self->strut))
 660         screen_update_areas();
 661
 662     client_call_notifies(self, client_destroy_notifies);
 663
 664     /* tell our parent(s) that we're gone */
 665     for (it = self->parents; it; it = g_slist_next(it))
 666         ((ObClient*)it->data)->transients =
 667             g_slist_remove(((ObClient*)it->data)->transients,self);
 668
 669     /* tell our transients that we're gone */
 670     for (it = self->transients; it; it = g_slist_next(it)) {
 671         ((ObClient*)it->data)->parents =
 672             g_slist_remove(((ObClient*)it->data)->parents, self);
 673         /* we could be keeping our children in a higher layer */
 674         client_calc_layer(it->data);
 675     }
 676
 677     /* remove from its group */
 678     if (self->group) {
 679         group_remove(self->group, self);
 680         self->group = NULL;
 681     }
 682
 683     /* restore the window's original geometry so it is not lost */
 684     {
 685         Rect a;
 686
 687         a = self->area;
 688
 689         if (self->fullscreen)
 690             a = self->pre_fullscreen_area;
 691         else if (self->max_horz || self->max_vert) {
 692             if (self->max_horz) {
 693                 a.x = self->pre_max_area.x;
 694                 a.width = self->pre_max_area.width;
 695             }
 696             if (self->max_vert) {
 697                 a.y = self->pre_max_area.y;
 698                 a.height = self->pre_max_area.height;
 699             }
 700         }
 701
 702         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 703         /* let it be moved and resized no matter what */
 704         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 705         self->decorations = 0; /* unmanaged windows have no decor */
 706
 707         /* give the client its border back */
 708         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 709
 710         client_move_resize(self, a.x, a.y, a.width, a.height);
 711     }
 712
 713     /* reparent the window out of the frame, and free the frame */
 714     frame_release_client(self->frame);
 715     frame_free(self->frame);
 716     self->frame = NULL;
 717
 718     if (ob_state() != OB_STATE_EXITING) {
 719         /* these values should not be persisted across a window
 720            unmapping/mapping */
 721         PROP_ERASE(self->window, net_wm_desktop);
 722         PROP_ERASE(self->window, net_wm_state);
 723         PROP_ERASE(self->window, wm_state);
 724     } else {
 725         /* if we're left in an unmapped state, the client wont be mapped.
 726            this is bad, since we will no longer be managing the window on
 727            restart */
 728         XMapWindow(ob_display, self->window);
 729     }
 730
 731     /* update the list hints */
 732     client_set_list();
 733
 734     ob_debug("Unmanaged window 0x%lx\n", self->window);
 735
 736     /* free all data allocated in the client struct */
 737     g_slist_free(self->transients);
 738     for (j = 0; j < self->nicons; ++j)
 739         g_free(self->icons[j].data);
 740     if (self->nicons > 0)
 741         g_free(self->icons);
 742     g_free(self->wm_command);
 743     g_free(self->title);
 744     g_free(self->icon_title);
 745     g_free(self->name);
 746     g_free(self->class);
 747     g_free(self->role);
 748     g_free(self->client_machine);
 749     g_free(self->sm_client_id);
 750     g_free(self);
 751 }
 752
 753 void client_fake_unmanage(ObClient *self)
 754 {
 755     /* this is all that got allocated to get the decorations */
 756
 757     frame_free(self->frame);
 758     g_free(self);
 759 }
 760
 761 /*! Returns a new structure containing the per-app settings for this client.
 762   The returned structure needs to be freed with g_free. */
 763 static ObAppSettings *client_get_settings_state(ObClient *self)
 764 {
 765     ObAppSettings *settings;
 766     GSList *it;
 767
 768     settings = config_create_app_settings();
 769
 770     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 771         ObAppSettings *app = it->data;
 772         gboolean match = TRUE;
 773
 774         g_assert(app->name != NULL || app->class != NULL);
 775
 776         /* we know that either name or class is not NULL so it will have to
 777            match to use the rule */
 778         if (app->name &&
 779             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 780             match = FALSE;
 781         else if (app->class &&
 782                 !g_pattern_match(app->class,
 783                                  strlen(self->class), self->class, NULL))
 784             match = FALSE;
 785         else if (app->role &&
 786                  !g_pattern_match(app->role,
 787                                   strlen(self->role), self->role, NULL))
 788             match = FALSE;
 789
 790         if (match) {
 791             ob_debug("Window matching: %s\n", app->name);
 792
 793             /* copy the settings to our struct, overriding the existing
 794                settings if they are not defaults */
 795             config_app_settings_copy_non_defaults(app, settings);
 796         }
 797     }
 798
 799     if (settings->shade != -1)
 800         self->shaded = !!settings->shade;
 801     if (settings->decor != -1)
 802         self->undecorated = !settings->decor;
 803     if (settings->iconic != -1)
 804         self->iconic = !!settings->iconic;
 805     if (settings->skip_pager != -1)
 806         self->skip_pager = !!settings->skip_pager;
 807     if (settings->skip_taskbar != -1)
 808         self->skip_taskbar = !!settings->skip_taskbar;
 809
 810     if (settings->max_vert != -1)
 811         self->max_vert = !!settings->max_vert;
 812     if (settings->max_horz != -1)
 813         self->max_horz = !!settings->max_horz;
 814
 815     if (settings->fullscreen != -1)
 816         self->fullscreen = !!settings->fullscreen;
 817
 818     if (settings->desktop) {
 819         if (settings->desktop == DESKTOP_ALL)
 820             self->desktop = settings->desktop;
 821         else if (settings->desktop > 0 &&
 822                  settings->desktop <= screen_num_desktops)
 823             self->desktop = settings->desktop - 1;
 824     }
 825
 826     if (settings->layer == -1) {
 827         self->below = TRUE;
 828         self->above = FALSE;
 829     }
 830     else if (settings->layer == 0) {
 831         self->below = FALSE;
 832         self->above = FALSE;
 833     }
 834     else if (settings->layer == 1) {
 835         self->below = FALSE;
 836         self->above = TRUE;
 837     }
 838     return settings;
 839 }
 840
 841 static void client_restore_session_state(ObClient *self)
 842 {
 843     GList *it;
 844
 845     ob_debug_type(OB_DEBUG_SM,
 846                   "Restore session for client %s\n", self->title);
 847
 848     if (!(it = session_state_find(self))) {
 849         ob_debug_type(OB_DEBUG_SM,
 850                       "Session data not found for client %s\n", self->title);
 851         return;
 852     }
 853
 854     self->session = it->data;
 855
 856     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 857                   self->title);
 858
 859     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 860     self->positioned = USPosition;
 861     self->sized = USSize;
 862     if (self->session->w > 0)
 863         self->area.width = self->session->w;
 864     if (self->session->h > 0)
 865         self->area.height = self->session->h;
 866     XResizeWindow(ob_display, self->window,
 867                   self->area.width, self->area.height);
 868
 869     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 870                      self->session->desktop :
 871                      MIN(screen_num_desktops - 1, self->session->desktop));
 872     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 873
 874     self->shaded = self->session->shaded;
 875     self->iconic = self->session->iconic;
 876     self->skip_pager = self->session->skip_pager;
 877     self->skip_taskbar = self->session->skip_taskbar;
 878     self->fullscreen = self->session->fullscreen;
 879     self->above = self->session->above;
 880     self->below = self->session->below;
 881     self->max_horz = self->session->max_horz;
 882     self->max_vert = self->session->max_vert;
 883     self->undecorated = self->session->undecorated;
 884 }
 885
 886 static gboolean client_restore_session_stacking(ObClient *self)
 887 {
 888     GList *it, *mypos;
 889
 890     if (!self->session) return FALSE;
 891
 892     mypos = g_list_find(session_saved_state, self->session);
 893     if (!mypos) return FALSE;
 894
 895     /* start above me and look for the first client */
 896     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 897         GList *cit;
 898
 899         for (cit = client_list; cit; cit = g_list_next(cit)) {
 900             ObClient *c = cit->data;
 901             /* found a client that was in the session, so go below it */
 902             if (c->session == it->data) {
 903                 stacking_below(CLIENT_AS_WINDOW(self),
 904                                CLIENT_AS_WINDOW(cit->data));
 905                 return TRUE;
 906             }
 907         }
 908     }
 909     return FALSE;
 910 }
 911
 912 void client_move_onscreen(ObClient *self, gboolean rude)
 913 {
 914     gint x = self->area.x;
 915     gint y = self->area.y;
 916     if (client_find_onscreen(self, &x, &y,
 917                              self->area.width,
 918                              self->area.height, rude)) {
 919         client_move(self, x, y);
 920     }
 921 }
 922
 923 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 924                               gboolean rude)
 925 {
 926     Rect *mon_a, *all_a;
 927     gint ox = *x, oy = *y;
 928     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 929     gint fw, fh;
 930     Rect desired;
 931
 932     RECT_SET(desired, *x, *y, w, h);
 933     frame_rect_to_frame(self->frame, &desired);
 934
 935     all_a = screen_area(self->desktop, &desired);
 936     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired),
 937                                 &desired);
 938
 939     /* get where the frame would be */
 940     frame_client_gravity(self->frame, x, y, w, h);
 941
 942     /* get the requested size of the window with decorations */
 943     fw = self->frame->size.left + w + self->frame->size.right;
 944     fh = self->frame->size.top + h + self->frame->size.bottom;
 945
 946     /* This makes sure windows aren't entirely outside of the screen so you
 947        can't see them at all.
 948        It makes sure 10% of the window is on the screen at least. At don't let
 949        it move itself off the top of the screen, which would hide the titlebar
 950        on you. (The user can still do this if they want too, it's only limiting
 951        the application.
 952
 953        XXX watch for xinerama dead areas...
 954     */
 955     if (client_normal(self)) {
 956         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 957             *x = all_a->x + all_a->width - fw/10;
 958         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 959             *y = all_a->y + all_a->height - fh/10;
 960         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 961             *x = all_a->x - fw*9/10;
 962         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 963             *y = all_a->y - fw*9/10;
 964     }
 965
 966     /* If rudeness wasn't requested, then figure out of the client is currently
 967        entirely on the screen. If it is, and the position isn't changing by
 968        request, and it is enlarging, then be rude even though it wasn't
 969        requested */
 970     if (!rude) {
 971         Point oldtl, oldtr, oldbl, oldbr;
 972         Point newtl, newtr, newbl, newbr;
 973         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 974
 975         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 976         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 977                   self->frame->area.y + self->frame->area.height - 1);
 978         POINT_SET(oldtr, oldbr.x, oldtl.y);
 979         POINT_SET(oldbl, oldtl.x, oldbr.y);
 980
 981         POINT_SET(newtl, *x, *y);
 982         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 983         POINT_SET(newtr, newbr.x, newtl.y);
 984         POINT_SET(newbl, newtl.x, newbr.y);
 985
 986         /* is it moving or just resizing from some corner? */
 987         stationary_l = oldtl.x == newtl.x;
 988         stationary_r = oldtr.x == newtr.x;
 989         stationary_t = oldtl.y == newtl.y;
 990         stationary_b = oldbl.y == newbl.y;
 991
 992         /* if left edge is growing and didnt move right edge */
 993         if (stationary_r && newtl.x < oldtl.x)
 994             rudel = TRUE;
 995         /* if right edge is growing and didnt move left edge */
 996         if (stationary_l && newtr.x > oldtr.x)
 997             ruder = TRUE;
 998         /* if top edge is growing and didnt move bottom edge */
 999         if (stationary_b && newtl.y < oldtl.y)
1000             rudet = TRUE;
1001         /* if bottom edge is growing and didnt move top edge */
1002         if (stationary_t && newbl.y > oldbl.y)
1003             rudeb = TRUE;
1004     }
1005
1006     /* This here doesn't let windows even a pixel outside the struts/screen.
1007      * When called from client_manage, programs placing themselves are
1008      * forced completely onscreen, while things like
1009      * xterm -geometry resolution-width/2 will work fine. Trying to
1010      * place it completely offscreen will be handled in the above code.
1011      * Sorry for this confused comment, i am tired. */
1012     if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
1013     if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
1014         *x = mon_a->x + MAX(0, mon_a->width - fw);
1015
1016     if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
1017     if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
1018         *y = mon_a->y + MAX(0, mon_a->height - fh);
1019
1020     /* get where the client should be */
1021     frame_frame_gravity(self->frame, x, y, w, h);
1022
1023     g_free(all_a);
1024     g_free(mon_a);
1025
1026     return ox != *x || oy != *y;
1027 }
1028
1029 static void client_get_all(ObClient *self, gboolean real)
1030 {
1031     /* this is needed for the frame to set itself up */
1032     client_get_area(self);
1033
1034     /* these things can change the decor and functions of the window */
1035
1036     client_get_mwm_hints(self);
1037     /* this can change the mwmhints for special cases */
1038     client_get_type_and_transientness(self);
1039     client_get_state(self);
1040     client_update_normal_hints(self);
1041
1042     /* get the session related properties, these can change decorations
1043        from per-app settings */
1044     client_get_session_ids(self);
1045
1046     /* now we got everything that can affect the decorations */
1047     if (!real)
1048         return;
1049
1050     /* get this early so we have it for debugging */
1051     client_update_title(self);
1052
1053     client_update_protocols(self);
1054
1055     client_update_wmhints(self);
1056     /* this may have already been called from client_update_wmhints */
1057     if (!self->parents && !self->transient_for_group)
1058         client_update_transient_for(self);
1059
1060     client_get_startup_id(self);
1061     client_get_desktop(self);/* uses transient data/group/startup id if a
1062                                 desktop is not specified */
1063     client_get_shaped(self);
1064
1065     {
1066         /* a couple type-based defaults for new windows */
1067
1068         /* this makes sure that these windows appear on all desktops */
1069         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1070             self->desktop = DESKTOP_ALL;
1071     }
1072
1073 #ifdef SYNC
1074     client_update_sync_request_counter(self);
1075 #endif
1076
1077     client_get_colormap(self);
1078     client_update_strut(self);
1079     client_update_icons(self);
1080     client_update_user_time_window(self);
1081     if (!self->user_time_window) /* check if this would have been called */
1082         client_update_user_time(self);
1083     client_update_icon_geometry(self);
1084 }
1085
1086 static void client_get_startup_id(ObClient *self)
1087 {
1088     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1089         if (self->group)
1090             PROP_GETS(self->group->leader,
1091                       net_startup_id, utf8, &self->startup_id);
1092 }
1093
1094 static void client_get_area(ObClient *self)
1095 {
1096     XWindowAttributes wattrib;
1097     Status ret;
1098
1099     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1100     g_assert(ret != BadWindow);
1101
1102     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1103     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1104     self->border_width = wattrib.border_width;
1105
1106     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1107              wattrib.width, wattrib.height, wattrib.border_width);
1108 }
1109
1110 static void client_get_desktop(ObClient *self)
1111 {
1112     guint32 d = screen_num_desktops; /* an always-invalid value */
1113
1114     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1115         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1116             self->desktop = screen_num_desktops - 1;
1117         else
1118             self->desktop = d;
1119         ob_debug("client requested desktop 0x%x\n", self->desktop);
1120     } else {
1121         GSList *it;
1122         gboolean first = TRUE;
1123         guint all = screen_num_desktops; /* not a valid value */
1124
1125         /* if they are all on one desktop, then open it on the
1126            same desktop */
1127         for (it = self->parents; it; it = g_slist_next(it)) {
1128             ObClient *c = it->data;
1129
1130             if (c->desktop == DESKTOP_ALL) continue;
1131
1132             if (first) {
1133                 all = c->desktop;
1134                 first = FALSE;
1135             }
1136             else if (all != c->desktop)
1137                 all = screen_num_desktops; /* make it invalid */
1138         }
1139         if (all != screen_num_desktops) {
1140             self->desktop = all;
1141
1142             ob_debug("client desktop set from parents: 0x%x\n",
1143                      self->desktop);
1144         }
1145         /* try get from the startup-notification protocol */
1146         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1147             if (self->desktop >= screen_num_desktops &&
1148                 self->desktop != DESKTOP_ALL)
1149                 self->desktop = screen_num_desktops - 1;
1150             ob_debug("client desktop set from startup-notification: 0x%x\n",
1151                      self->desktop);
1152         }
1153         /* defaults to the current desktop */
1154         else {
1155             self->desktop = screen_desktop;
1156             ob_debug("client desktop set to the current desktop: %d\n",
1157                      self->desktop);
1158         }
1159     }
1160 }
1161
1162 static void client_get_state(ObClient *self)
1163 {
1164     guint32 *state;
1165     guint num;
1166
1167     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1168         gulong i;
1169         for (i = 0; i < num; ++i) {
1170             if (state[i] == prop_atoms.net_wm_state_modal)
1171                 self->modal = TRUE;
1172             else if (state[i] == prop_atoms.net_wm_state_shaded)
1173                 self->shaded = TRUE;
1174             else if (state[i] == prop_atoms.net_wm_state_hidden)
1175                 self->iconic = TRUE;
1176             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1177                 self->skip_taskbar = TRUE;
1178             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1179                 self->skip_pager = TRUE;
1180             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1181                 self->fullscreen = TRUE;
1182             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1183                 self->max_vert = TRUE;
1184             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1185                 self->max_horz = TRUE;
1186             else if (state[i] == prop_atoms.net_wm_state_above)
1187                 self->above = TRUE;
1188             else if (state[i] == prop_atoms.net_wm_state_below)
1189                 self->below = TRUE;
1190             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1191                 self->demands_attention = TRUE;
1192             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1193                 self->undecorated = TRUE;
1194         }
1195
1196         g_free(state);
1197     }
1198 }
1199
1200 static void client_get_shaped(ObClient *self)
1201 {
1202     self->shaped = FALSE;
1203 #ifdef   SHAPE
1204     if (extensions_shape) {
1205         gint foo;
1206         guint ufoo;
1207         gint s;
1208
1209         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1210
1211         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1212                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1213                            &ufoo);
1214         self->shaped = (s != 0);
1215     }
1216 #endif
1217 }
1218
1219 void client_update_transient_for(ObClient *self)
1220 {
1221     Window t = None;
1222     ObClient *target = NULL;
1223     gboolean trangroup = FALSE;
1224
1225     if (XGetTransientForHint(ob_display, self->window, &t)) {
1226         if (t != self->window) { /* cant be transient to itself! */
1227             target = g_hash_table_lookup(window_map, &t);
1228             /* if this happens then we need to check for it*/
1229             g_assert(target != self);
1230             if (target && !WINDOW_IS_CLIENT(target)) {
1231                 /* this can happen when a dialog is a child of
1232                    a dockapp, for example */
1233                 target = NULL;
1234             }
1235         }
1236
1237         /* Setting the transient_for to Root is actually illegal, however
1238            applications from time have done this to specify transient for
1239            their group */
1240         if (!target && self->group && t == RootWindow(ob_display, ob_screen))
1241             trangroup = TRUE;
1242     } else if (self->group && self->transient)
1243         trangroup = TRUE;
1244
1245     client_update_transient_tree(self, self->group, self->group,
1246                                  self->transient_for_group, trangroup,
1247                                  client_direct_parent(self), target);
1248     self->transient_for_group = trangroup;
1249
1250 }
1251
1252 static void client_update_transient_tree(ObClient *self,
1253                                          ObGroup *oldgroup, ObGroup *newgroup,
1254                                          gboolean oldgtran, gboolean newgtran,
1255                                          ObClient* oldparent,
1256                                          ObClient *newparent)
1257 {
1258     GSList *it, *next;
1259     ObClient *c;
1260
1261     g_assert(!oldgtran || oldgroup);
1262     g_assert(!newgtran || newgroup);
1263     g_assert((!oldgtran && !oldparent) ||
1264              (oldgtran && !oldparent) ||
1265              (!oldgtran && oldparent));
1266     g_assert((!newgtran && !newparent) ||
1267              (newgtran && !newparent) ||
1268              (!newgtran && newparent));
1269
1270     /* * *
1271       Group transient windows are not allowed to have other group
1272       transient windows as their children.
1273       * * */
1274
1275
1276     /* No change has occured */
1277     if (oldgroup == newgroup &&
1278         oldgtran == newgtran &&
1279         oldparent == newparent) return;
1280
1281     /** Remove the client from the transient tree wherever it has changed **/
1282
1283     /* If the window is becoming a direct transient for a window in its group
1284        then any group transients which were our children and are now becoming
1285        our parents need to stop being our children.
1286
1287        Group transients can't be children of group transients already, but
1288        we could have any number of direct parents above up, any of which could
1289        be transient for the group, and we need to remove it from our children.
1290     */
1291     if (!oldgtran && oldparent != newparent && newparent != NULL &&
1292         newgroup != NULL && newgroup == oldgroup &&
1293         client_normal(newparent))
1294     {
1295         ObClient *look = client_search_top_direct_parent(newparent);
1296         self->transients = g_slist_remove(self->transients, look);
1297         look->parents = g_slist_remove(look->parents, self);
1298     }
1299
1300
1301     /* If the group changed, or if we are just becoming transient for the
1302        group, then we need to remove any old group transient windows
1303        from our children. But if we were already transient for the group, then
1304        other group transients are not our children. */
1305     if ((oldgroup != newgroup || (newgtran && oldgtran != newgtran)) &&
1306         oldgroup != NULL && !oldgtran)
1307     {
1308         for (it = self->transients; it; it = next) {
1309             next = g_slist_next(it);
1310             c = it->data;
1311             if (c->group == oldgroup && client_normal(self)) {
1312                 self->transients = g_slist_delete_link(self->transients, it);
1313                 c->parents = g_slist_remove(c->parents, self);
1314             }
1315         }
1316     }
1317
1318     /* If we used to be transient for a group and now we are not, or we're
1319        transient for a new group, then we need to remove ourselves from all
1320        our ex-parents */
1321     if (oldgtran && (oldgroup != newgroup || oldgtran != newgtran))
1322     {
1323         for (it = self->parents; it; it = next) {
1324             next = g_slist_next(it);
1325             c = it->data;
1326             if (!c->transient_for_group && client_normal(c)) {
1327                 c->transients = g_slist_remove(c->transients, self);
1328                 self->parents = g_slist_delete_link(self->parents, it);
1329             }
1330         }
1331     }
1332     /* If we used to be transient for a single window and we are no longer
1333        transient for it, then we need to remove ourself from its children */
1334     else if (oldparent && oldparent != newparent &&
1335              client_normal(oldparent))
1336     {
1337         oldparent->transients = g_slist_remove(oldparent->transients, self);
1338         self->parents = g_slist_remove(self->parents, oldparent);
1339     }
1340
1341     /** Re-add the client to the transient tree wherever it has changed **/
1342
1343     /* If we're now transient for a group and we weren't transient for it
1344        before then we need to add ourselves to all our new parents */
1345     if (newgtran && (oldgroup != newgroup || oldgtran != newgtran))
1346     {
1347         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1348             c = it->data;
1349             if (c != self && !c->transient_for_group && client_normal(c))
1350             {
1351                 c->transients = g_slist_prepend(c->transients, self);
1352                 self->parents = g_slist_prepend(self->parents, c);
1353             }
1354         }
1355     }
1356     /* If we are now transient for a single window which we weren't before,
1357        we need to add ourselves to its children
1358
1359        WARNING: Cyclical transient ness is possible if two windows are
1360        transient for eachother.
1361     */
1362     else if (newparent && newparent != oldparent &&
1363              /* don't make ourself its child if it is already our child */
1364              !client_is_direct_child(self, newparent) &&
1365              client_normal(newparent))
1366     {
1367         newparent->transients = g_slist_prepend(newparent->transients, self);
1368         self->parents = g_slist_prepend(self->parents, newparent);
1369     }
1370
1371     /* If the group changed then we need to add any new group transient
1372        windows to our children. But if we're transient for the group, then
1373        other group transients are not our children.
1374
1375        WARNING: Cyclical transient-ness is possible. For e.g. if:
1376        A is transient for the group
1377        B is transient for A
1378        C is transient for B
1379        A can't be transient for C or we have a cycle
1380     */
1381     if (oldgroup != newgroup && newgroup != NULL && !newgtran &&
1382         client_normal(self))
1383     {
1384         for (it = newgroup->members; it; it = g_slist_next(it)) {
1385             c = it->data;
1386             if (c != self && c->transient_for_group &&
1387                 /* Don't make it our child if it is already our parent */
1388                 !client_is_direct_child(c, self))
1389             {
1390                 self->transients = g_slist_prepend(self->transients, c);
1391                 c->parents = g_slist_prepend(c->parents, self);
1392             }
1393         }
1394     }
1395 }
1396
1397 static void client_get_mwm_hints(ObClient *self)
1398 {
1399     guint num;
1400     guint32 *hints;
1401
1402     self->mwmhints.flags = 0; /* default to none */
1403
1404     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1405                     &hints, &num)) {
1406         if (num >= OB_MWM_ELEMENTS) {
1407             self->mwmhints.flags = hints[0];
1408             self->mwmhints.functions = hints[1];
1409             self->mwmhints.decorations = hints[2];
1410         }
1411         g_free(hints);
1412     }
1413 }
1414
1415 void client_get_type_and_transientness(ObClient *self)
1416 {
1417     guint num, i;
1418     guint32 *val;
1419     Window t;
1420
1421     self->type = -1;
1422     self->transient = FALSE;
1423
1424     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1425         /* use the first value that we know about in the array */
1426         for (i = 0; i < num; ++i) {
1427             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1428                 self->type = OB_CLIENT_TYPE_DESKTOP;
1429             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1430                 self->type = OB_CLIENT_TYPE_DOCK;
1431             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1432                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1433             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1434                 self->type = OB_CLIENT_TYPE_MENU;
1435             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1436                 self->type = OB_CLIENT_TYPE_UTILITY;
1437             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1438                 self->type = OB_CLIENT_TYPE_SPLASH;
1439             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1440                 self->type = OB_CLIENT_TYPE_DIALOG;
1441             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1442                 self->type = OB_CLIENT_TYPE_NORMAL;
1443             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1444                 /* prevent this window from getting any decor or
1445                    functionality */
1446                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1447                                          OB_MWM_FLAG_DECORATIONS);
1448                 self->mwmhints.decorations = 0;
1449                 self->mwmhints.functions = 0;
1450             }
1451             if (self->type != (ObClientType) -1)
1452                 break; /* grab the first legit type */
1453         }
1454         g_free(val);
1455     }
1456
1457     if (XGetTransientForHint(ob_display, self->window, &t))
1458         self->transient = TRUE;
1459
1460     if (self->type == (ObClientType) -1) {
1461         /*the window type hint was not set, which means we either classify
1462           ourself as a normal window or a dialog, depending on if we are a
1463           transient. */
1464         if (self->transient)
1465             self->type = OB_CLIENT_TYPE_DIALOG;
1466         else
1467             self->type = OB_CLIENT_TYPE_NORMAL;
1468     }
1469
1470     /* then, based on our type, we can update our transientness.. */
1471     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1472         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1473         self->type == OB_CLIENT_TYPE_MENU ||
1474         self->type == OB_CLIENT_TYPE_UTILITY)
1475     {
1476         self->transient = TRUE;
1477     }
1478 }
1479
1480 void client_update_protocols(ObClient *self)
1481 {
1482     guint32 *proto;
1483     guint num_return, i;
1484
1485     self->focus_notify = FALSE;
1486     self->delete_window = FALSE;
1487
1488     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1489         for (i = 0; i < num_return; ++i) {
1490             if (proto[i] == prop_atoms.wm_delete_window)
1491                 /* this means we can request the window to close */
1492                 self->delete_window = TRUE;
1493             else if (proto[i] == prop_atoms.wm_take_focus)
1494                 /* if this protocol is requested, then the window will be
1495                    notified whenever we want it to receive focus */
1496                 self->focus_notify = TRUE;
1497 #ifdef SYNC
1498             else if (proto[i] == prop_atoms.net_wm_sync_request)
1499                 /* if this protocol is requested, then resizing the
1500                    window will be synchronized between the frame and the
1501                    client */
1502                 self->sync_request = TRUE;
1503 #endif
1504         }
1505         g_free(proto);
1506     }
1507 }
1508
1509 #ifdef SYNC
1510 void client_update_sync_request_counter(ObClient *self)
1511 {
1512     guint32 i;
1513
1514     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1515         self->sync_counter = i;
1516     } else
1517         self->sync_counter = None;
1518 }
1519 #endif
1520
1521 void client_get_colormap(ObClient *self)
1522 {
1523     XWindowAttributes wa;
1524
1525     if (XGetWindowAttributes(ob_display, self->window, &wa))
1526         client_update_colormap(self, wa.colormap);
1527 }
1528
1529 void client_update_colormap(ObClient *self, Colormap colormap)
1530 {
1531     if (colormap == self->colormap) return;
1532
1533     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1534
1535     if (client_focused(self)) {
1536         screen_install_colormap(self, FALSE); /* uninstall old one */
1537         self->colormap = colormap;
1538         screen_install_colormap(self, FALSE); /* install new one */
1539     } else
1540         self->colormap = colormap;
1541 }
1542
1543 void client_update_normal_hints(ObClient *self)
1544 {
1545     XSizeHints size;
1546     glong ret;
1547
1548     /* defaults */
1549     self->min_ratio = 0.0f;
1550     self->max_ratio = 0.0f;
1551     SIZE_SET(self->size_inc, 1, 1);
1552     SIZE_SET(self->base_size, 0, 0);
1553     SIZE_SET(self->min_size, 0, 0);
1554     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1555
1556     /* get the hints from the window */
1557     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1558         /* normal windows can't request placement! har har
1559         if (!client_normal(self))
1560         */
1561         self->positioned = (size.flags & (PPosition|USPosition));
1562         self->sized = (size.flags & (PSize|USSize));
1563
1564         if (size.flags & PWinGravity)
1565             self->gravity = size.win_gravity;
1566
1567         if (size.flags & PAspect) {
1568             if (size.min_aspect.y)
1569                 self->min_ratio =
1570                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1571             if (size.max_aspect.y)
1572                 self->max_ratio =
1573                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1574         }
1575
1576         if (size.flags & PMinSize)
1577             SIZE_SET(self->min_size, size.min_width, size.min_height);
1578
1579         if (size.flags & PMaxSize)
1580             SIZE_SET(self->max_size, size.max_width, size.max_height);
1581
1582         if (size.flags & PBaseSize)
1583             SIZE_SET(self->base_size, size.base_width, size.base_height);
1584
1585         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1586             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1587
1588         ob_debug("Normal hints: min size (%d %d) max size (%d %d)\n   "
1589                  "size inc (%d %d) base size (%d %d)\n",
1590                  self->min_size.width, self->min_size.height,
1591                  self->max_size.width, self->max_size.height,
1592                  self->size_inc.width, self->size_inc.height,
1593                  self->base_size.width, self->base_size.height);
1594     }
1595     else
1596         ob_debug("Normal hints: not set\n");
1597 }
1598
1599 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1600 {
1601     /* start with everything (cept fullscreen) */
1602     self->decorations =
1603         (OB_FRAME_DECOR_TITLEBAR |
1604          OB_FRAME_DECOR_HANDLE |
1605          OB_FRAME_DECOR_GRIPS |
1606          OB_FRAME_DECOR_BORDER |
1607          OB_FRAME_DECOR_ICON |
1608          OB_FRAME_DECOR_ALLDESKTOPS |
1609          OB_FRAME_DECOR_ICONIFY |
1610          OB_FRAME_DECOR_MAXIMIZE |
1611          OB_FRAME_DECOR_SHADE |
1612          OB_FRAME_DECOR_CLOSE);
1613     self->functions =
1614         (OB_CLIENT_FUNC_RESIZE |
1615          OB_CLIENT_FUNC_MOVE |
1616          OB_CLIENT_FUNC_ICONIFY |
1617          OB_CLIENT_FUNC_MAXIMIZE |
1618          OB_CLIENT_FUNC_SHADE |
1619          OB_CLIENT_FUNC_CLOSE |
1620          OB_CLIENT_FUNC_BELOW |
1621          OB_CLIENT_FUNC_ABOVE |
1622          OB_CLIENT_FUNC_UNDECORATE);
1623
1624     if (!(self->min_size.width < self->max_size.width ||
1625           self->min_size.height < self->max_size.height))
1626         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1627
1628     switch (self->type) {
1629     case OB_CLIENT_TYPE_NORMAL:
1630         /* normal windows retain all of the possible decorations and
1631            functionality, and are the only windows that you can fullscreen */
1632         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1633         break;
1634
1635     case OB_CLIENT_TYPE_DIALOG:
1636     case OB_CLIENT_TYPE_UTILITY:
1637         /* these windows don't have anything added or removed by default */
1638         break;
1639
1640     case OB_CLIENT_TYPE_MENU:
1641     case OB_CLIENT_TYPE_TOOLBAR:
1642         /* these windows can't iconify or maximize */
1643         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1644                                OB_FRAME_DECOR_MAXIMIZE);
1645         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1646                              OB_CLIENT_FUNC_MAXIMIZE);
1647         break;
1648
1649     case OB_CLIENT_TYPE_SPLASH:
1650         /* these don't get get any decorations, and the only thing you can
1651            do with them is move them */
1652         self->decorations = 0;
1653         self->functions = OB_CLIENT_FUNC_MOVE;
1654         break;
1655
1656     case OB_CLIENT_TYPE_DESKTOP:
1657         /* these windows are not manipulated by the window manager */
1658         self->decorations = 0;
1659         self->functions = 0;
1660         break;
1661
1662     case OB_CLIENT_TYPE_DOCK:
1663         /* these windows are not manipulated by the window manager, but they
1664            can set below layer which has a special meaning */
1665         self->decorations = 0;
1666         self->functions = OB_CLIENT_FUNC_BELOW;
1667         break;
1668     }
1669
1670     /* Mwm Hints are applied subtractively to what has already been chosen for
1671        decor and functionality */
1672     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1673         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1674             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1675                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1676             {
1677                 /* if the mwm hints request no handle or title, then all
1678                    decorations are disabled, but keep the border if that's
1679                    specified */
1680                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1681                     self->decorations = OB_FRAME_DECOR_BORDER;
1682                 else
1683                     self->decorations = 0;
1684             }
1685         }
1686     }
1687
1688     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1689         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1690             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1691                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1692             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1693                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1694             /* dont let mwm hints kill any buttons
1695                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1696                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1697                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1698                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1699             */
1700             /* dont let mwm hints kill the close button
1701                if (! (self->mwmhints.functions & MwmFunc_Close))
1702                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1703         }
1704     }
1705
1706     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1707         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1708     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1709         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1710     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1711         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1712
1713     /* can't maximize without moving/resizing */
1714     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1715           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1716           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1717         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1718         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1719     }
1720
1721     if (self->max_horz && self->max_vert) {
1722         /* you can't resize fully maximized windows */
1723         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1724         /* kill the handle on fully maxed windows */
1725         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1726     }
1727
1728     /* If there are no decorations to remove, don't allow the user to try
1729        toggle the state */
1730     if (self->decorations == 0)
1731         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1732
1733     /* finally, the user can have requested no decorations, which overrides
1734        everything (but doesnt give it a border if it doesnt have one) */
1735     if (self->undecorated)
1736         self->decorations = 0;
1737
1738     /* if we don't have a titlebar, then we cannot shade! */
1739     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1740         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1741
1742     /* now we need to check against rules for the client's current state */
1743     if (self->fullscreen) {
1744         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1745                             OB_CLIENT_FUNC_FULLSCREEN |
1746                             OB_CLIENT_FUNC_ICONIFY);
1747         self->decorations = 0;
1748     }
1749
1750     client_change_allowed_actions(self);
1751
1752     if (reconfig)
1753         client_reconfigure(self);
1754 }
1755
1756 static void client_change_allowed_actions(ObClient *self)
1757 {
1758     gulong actions[12];
1759     gint num = 0;
1760
1761     /* desktop windows are kept on all desktops */
1762     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1763         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1764
1765     if (self->functions & OB_CLIENT_FUNC_SHADE)
1766         actions[num++] = prop_atoms.net_wm_action_shade;
1767     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1768         actions[num++] = prop_atoms.net_wm_action_close;
1769     if (self->functions & OB_CLIENT_FUNC_MOVE)
1770         actions[num++] = prop_atoms.net_wm_action_move;
1771     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1772         actions[num++] = prop_atoms.net_wm_action_minimize;
1773     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1774         actions[num++] = prop_atoms.net_wm_action_resize;
1775     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1776         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1777     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1778         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1779         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1780     }
1781     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1782         actions[num++] = prop_atoms.net_wm_action_above;
1783     if (self->functions & OB_CLIENT_FUNC_BELOW)
1784         actions[num++] = prop_atoms.net_wm_action_below;
1785     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1786         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1787
1788     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1789
1790     /* make sure the window isn't breaking any rules now */
1791
1792     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1793         if (self->frame) client_shade(self, FALSE);
1794         else self->shaded = FALSE;
1795     }
1796     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1797         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1798         else self->iconic = FALSE;
1799     }
1800     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1801         if (self->frame) client_fullscreen(self, FALSE);
1802         else self->fullscreen = FALSE;
1803     }
1804     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1805                                                          self->max_vert)) {
1806         if (self->frame) client_maximize(self, FALSE, 0);
1807         else self->max_vert = self->max_horz = FALSE;
1808     }
1809 }
1810
1811 void client_reconfigure(ObClient *self)
1812 {
1813     client_configure(self, self->area.x, self->area.y,
1814                      self->area.width, self->area.height,
1815                      FALSE, TRUE);
1816 }
1817
1818 void client_update_wmhints(ObClient *self)
1819 {
1820     XWMHints *hints;
1821
1822     /* assume a window takes input if it doesnt specify */
1823     self->can_focus = TRUE;
1824
1825     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1826         gboolean ur;
1827
1828         if (hints->flags & InputHint)
1829             self->can_focus = hints->input;
1830
1831         /* only do this when first managing the window *AND* when we aren't
1832            starting up! */
1833         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1834             if (hints->flags & StateHint)
1835                 self->iconic = hints->initial_state == IconicState;
1836
1837         ur = self->urgent;
1838         self->urgent = (hints->flags & XUrgencyHint);
1839         if (self->urgent && !ur)
1840             client_hilite(self, TRUE);
1841         else if (!self->urgent && ur && self->demands_attention)
1842             client_hilite(self, FALSE);
1843
1844         if (!(hints->flags & WindowGroupHint))
1845             hints->window_group = None;
1846
1847         /* did the group state change? */
1848         if (hints->window_group !=
1849             (self->group ? self->group->leader : None))
1850         {
1851             ObGroup *oldgroup = self->group;
1852
1853             /* remove from the old group if there was one */
1854             if (self->group != NULL) {
1855                 group_remove(self->group, self);
1856                 self->group = NULL;
1857             }
1858
1859             /* add ourself to the group if we have one */
1860             if (hints->window_group != None) {
1861                 self->group = group_add(hints->window_group, self);
1862             }
1863
1864             /* Put ourselves into the new group's transient tree, and remove
1865                ourselves from the old group's */
1866             client_update_transient_tree(self, oldgroup, self->group,
1867                                          self->transient_for_group,
1868                                          self->transient_for_group,
1869                                          client_direct_parent(self),
1870                                          client_direct_parent(self));
1871
1872             /* Lastly, being in a group, or not, can change if the window is
1873                transient for anything.
1874
1875                The logic for this is:
1876                self->transient = TRUE always if the window wants to be
1877                transient for something, even if transient_for was NULL because
1878                it wasn't in a group before.
1879
1880                If parents was NULL and oldgroup was NULL we can assume
1881                that when we add the new group, it will become transient for
1882                something.
1883
1884                If transient_for_group is TRUE, then it must have already
1885                had a group. If it is getting a new group, the above call to
1886                client_update_transient_tree has already taken care of
1887                everything ! If it is losing all group status then it will
1888                no longer be transient for anything and that needs to be
1889                updated.
1890             */
1891             if (self->transient &&
1892                 ((self->parents == NULL && oldgroup == NULL) ||
1893                  (self->transient_for_group && !self->group)))
1894                 client_update_transient_for(self);
1895         }
1896
1897         /* the WM_HINTS can contain an icon */
1898         if (hints->flags & IconPixmapHint)
1899             client_update_icons(self);
1900
1901         XFree(hints);
1902     }
1903 }
1904
1905 void client_update_title(ObClient *self)
1906 {
1907     gchar *data = NULL;
1908     gchar *visible = NULL;
1909
1910     g_free(self->title);
1911
1912     /* try netwm */
1913     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1914         /* try old x stuff */
1915         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1916               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1917             if (self->transient) {
1918                 /*
1919                   GNOME alert windows are not given titles:
1920                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1921                 */
1922                 data = g_strdup("");
1923             } else
1924                 data = g_strdup("Unnamed Window");
1925         }
1926     }
1927
1928     if (self->client_machine) {
1929         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1930         g_free(data);
1931     } else
1932         visible = data;
1933
1934     PROP_SETS(self->window, net_wm_visible_name, visible);
1935     self->title = visible;
1936
1937     if (self->frame)
1938         frame_adjust_title(self->frame);
1939
1940     /* update the icon title */
1941     data = NULL;
1942     g_free(self->icon_title);
1943
1944     /* try netwm */
1945     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1946         /* try old x stuff */
1947         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1948               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1949             data = g_strdup(self->title);
1950
1951     if (self->client_machine) {
1952         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1953         g_free(data);
1954     } else
1955         visible = data;
1956
1957     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
1958     self->icon_title = visible;
1959 }
1960
1961 void client_update_strut(ObClient *self)
1962 {
1963     guint num;
1964     guint32 *data;
1965     gboolean got = FALSE;
1966     StrutPartial strut;
1967
1968     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1969                     &data, &num)) {
1970         if (num == 12) {
1971             got = TRUE;
1972             STRUT_PARTIAL_SET(strut,
1973                               data[0], data[2], data[1], data[3],
1974                               data[4], data[5], data[8], data[9],
1975                               data[6], data[7], data[10], data[11]);
1976         }
1977         g_free(data);
1978     }
1979
1980     if (!got &&
1981         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1982         if (num == 4) {
1983             Rect *a;
1984
1985             got = TRUE;
1986
1987             /* use the screen's width/height */
1988             a = screen_physical_area();
1989
1990             STRUT_PARTIAL_SET(strut,
1991                               data[0], data[2], data[1], data[3],
1992                               a->y, a->y + a->height - 1,
1993                               a->x, a->x + a->width - 1,
1994                               a->y, a->y + a->height - 1,
1995                               a->x, a->x + a->width - 1);
1996             g_free(a);
1997         }
1998         g_free(data);
1999     }
2000
2001     if (!got)
2002         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2003                           0, 0, 0, 0, 0, 0, 0, 0);
2004
2005     if (!STRUT_EQUAL(strut, self->strut)) {
2006         self->strut = strut;
2007
2008         /* updating here is pointless while we're being mapped cuz we're not in
2009            the client list yet */
2010         if (self->frame)
2011             screen_update_areas();
2012     }
2013 }
2014
2015 void client_update_icons(ObClient *self)
2016 {
2017     guint num;
2018     guint32 *data;
2019     guint w, h, i, j;
2020
2021     for (i = 0; i < self->nicons; ++i)
2022         g_free(self->icons[i].data);
2023     if (self->nicons > 0)
2024         g_free(self->icons);
2025     self->nicons = 0;
2026
2027     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2028         /* figure out how many valid icons are in here */
2029         i = 0;
2030         while (num - i > 2) {
2031             w = data[i++];
2032             h = data[i++];
2033             i += w * h;
2034             if (i > num || w*h == 0) break;
2035             ++self->nicons;
2036         }
2037
2038         self->icons = g_new(ObClientIcon, self->nicons);
2039
2040         /* store the icons */
2041         i = 0;
2042         for (j = 0; j < self->nicons; ++j) {
2043             guint x, y, t;
2044
2045             w = self->icons[j].width = data[i++];
2046             h = self->icons[j].height = data[i++];
2047
2048             if (w*h == 0) continue;
2049
2050             self->icons[j].data = g_new(RrPixel32, w * h);
2051             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2052                 if (x >= w) {
2053                     x = 0;
2054                     ++y;
2055                 }
2056                 self->icons[j].data[t] =
2057                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2058                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2059                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2060                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2061             }
2062             g_assert(i <= num);
2063         }
2064
2065         g_free(data);
2066     } else {
2067         XWMHints *hints;
2068
2069         if ((hints = XGetWMHints(ob_display, self->window))) {
2070             if (hints->flags & IconPixmapHint) {
2071                 self->nicons = 1;
2072                 self->icons = g_new(ObClientIcon, self->nicons);
2073                 xerror_set_ignore(TRUE);
2074                 if (!RrPixmapToRGBA(ob_rr_inst,
2075                                     hints->icon_pixmap,
2076                                     (hints->flags & IconMaskHint ?
2077                                      hints->icon_mask : None),
2078                                     &self->icons[0].width,
2079                                     &self->icons[0].height,
2080                                     &self->icons[0].data))
2081                 {
2082                     g_free(self->icons);
2083                     self->nicons = 0;
2084                 }
2085                 xerror_set_ignore(FALSE);
2086             }
2087             XFree(hints);
2088         }
2089     }
2090
2091     /* set the default icon onto the window
2092        in theory, this could be a race, but if a window doesn't set an icon
2093        or removes it entirely, it's not very likely it is going to set one
2094        right away afterwards */
2095     if (self->nicons == 0) {
2096         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2097         gulong *data;
2098
2099         data = g_new(gulong, 48*48+2);
2100         data[0] = data[1] =  48;
2101         for (i = 0; i < 48*48; ++i)
2102             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2103                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2104                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2105                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2106         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2107         g_free(data);
2108     } else if (self->frame)
2109         /* don't draw the icon empty if we're just setting one now anyways,
2110            we'll get the property change any second */
2111         frame_adjust_icon(self->frame);
2112 }
2113
2114 void client_update_user_time(ObClient *self)
2115 {
2116     guint32 time;
2117     gboolean got = FALSE;
2118
2119     if (self->user_time_window)
2120         got = PROP_GET32(self->user_time_window,
2121                          net_wm_user_time, cardinal, &time);
2122     if (!got)
2123         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2124
2125     if (got) {
2126         /* we set this every time, not just when it grows, because in practice
2127            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2128            backward we don't want all windows to stop focusing. we'll just
2129            assume noone is setting times older than the last one, cuz that
2130            would be pretty stupid anyways
2131         */
2132         self->user_time = time;
2133
2134         /*ob_debug("window %s user time %u\n", self->title, time);*/
2135     }
2136 }
2137
2138 void client_update_user_time_window(ObClient *self)
2139 {
2140     guint32 w;
2141
2142     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2143         w = None;
2144
2145     if (w != self->user_time_window) {
2146         /* remove the old window */
2147         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2148         self->user_time_window = None;
2149
2150         if (self->group && self->group->leader == w) {
2151             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2152                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2153             /* do it anyways..? */
2154         }
2155         else if (w == self->window) {
2156             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2157                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2158             w = None; /* don't do it */
2159         }
2160
2161         /* add the new window */
2162         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2163         self->user_time_window = w;
2164
2165         /* and update from it */
2166         client_update_user_time(self);
2167     }
2168 }
2169
2170 void client_update_icon_geometry(ObClient *self)
2171 {
2172     guint num;
2173     guint32 *data;
2174
2175     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2176
2177     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2178         && num == 4)
2179     {
2180         /* don't let them set it with an area < 0 */
2181         RECT_SET(self->icon_geometry, data[0], data[1],
2182                  MAX(data[2],0), MAX(data[3],0));
2183     }
2184 }
2185
2186 static void client_get_session_ids(ObClient *self)
2187 {
2188     guint32 leader;
2189     gboolean got;
2190     gchar *s;
2191     gchar **ss;
2192
2193     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2194         leader = None;
2195
2196     /* get the SM_CLIENT_ID */
2197     got = FALSE;
2198     if (leader)
2199         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2200     if (!got)
2201         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2202
2203     /* get the WM_CLASS (name and class). make them "" if they are not
2204        provided */
2205     got = FALSE;
2206     if (leader)
2207         got = PROP_GETSS(leader, wm_class, locale, &ss);
2208     if (!got)
2209         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2210
2211     if (got) {
2212         if (ss[0]) {
2213             self->name = g_strdup(ss[0]);
2214             if (ss[1])
2215                 self->class = g_strdup(ss[1]);
2216         }
2217         g_strfreev(ss);
2218     }
2219
2220     if (self->name == NULL) self->name = g_strdup("");
2221     if (self->class == NULL) self->class = g_strdup("");
2222
2223     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2224     got = FALSE;
2225     if (leader)
2226         got = PROP_GETS(leader, wm_window_role, locale, &s);
2227     if (!got)
2228         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2229
2230     if (got)
2231         self->role = s;
2232     else
2233         self->role = g_strdup("");
2234
2235     /* get the WM_COMMAND */
2236     got = FALSE;
2237
2238     if (leader)
2239         got = PROP_GETSS(leader, wm_command, locale, &ss);
2240     if (!got)
2241         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2242
2243     if (got) {
2244         /* merge/mash them all together */
2245         gchar *merge = NULL;
2246         gint i;
2247
2248         for (i = 0; ss[i]; ++i) {
2249             gchar *tmp = merge;
2250             if (merge)
2251                 merge = g_strconcat(merge, ss[i], NULL);
2252             else
2253                 merge = g_strconcat(ss[i], NULL);
2254             g_free(tmp);
2255         }
2256         g_strfreev(ss);
2257
2258         self->wm_command = merge;
2259     }
2260
2261     /* get the WM_CLIENT_MACHINE */
2262     got = FALSE;
2263     if (leader)
2264         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2265     if (!got)
2266         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2267
2268     if (got) {
2269         gchar localhost[128];
2270
2271         gethostname(localhost, 127);
2272         localhost[127] = '\0';
2273         if (strcmp(localhost, s) != 0)
2274             self->client_machine = s;
2275         else
2276             g_free(s);
2277     }
2278 }
2279
2280 static void client_change_wm_state(ObClient *self)
2281 {
2282     gulong state[2];
2283     glong old;
2284
2285     old = self->wmstate;
2286
2287     if (self->shaded || self->iconic ||
2288         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2289     {
2290         self->wmstate = IconicState;
2291     } else
2292         self->wmstate = NormalState;
2293
2294     if (old != self->wmstate) {
2295         PROP_MSG(self->window, kde_wm_change_state,
2296                  self->wmstate, 1, 0, 0);
2297
2298         state[0] = self->wmstate;
2299         state[1] = None;
2300         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2301     }
2302 }
2303
2304 static void client_change_state(ObClient *self)
2305 {
2306     gulong netstate[12];
2307     guint num;
2308
2309     num = 0;
2310     if (self->modal)
2311         netstate[num++] = prop_atoms.net_wm_state_modal;
2312     if (self->shaded)
2313         netstate[num++] = prop_atoms.net_wm_state_shaded;
2314     if (self->iconic)
2315         netstate[num++] = prop_atoms.net_wm_state_hidden;
2316     if (self->skip_taskbar)
2317         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2318     if (self->skip_pager)
2319         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2320     if (self->fullscreen)
2321         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2322     if (self->max_vert)
2323         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2324     if (self->max_horz)
2325         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2326     if (self->above)
2327         netstate[num++] = prop_atoms.net_wm_state_above;
2328     if (self->below)
2329         netstate[num++] = prop_atoms.net_wm_state_below;
2330     if (self->demands_attention)
2331         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2332     if (self->undecorated)
2333         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2334     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2335
2336     if (self->frame)
2337         frame_adjust_state(self->frame);
2338 }
2339
2340 ObClient *client_search_focus_tree(ObClient *self)
2341 {
2342     GSList *it;
2343     ObClient *ret;
2344
2345     for (it = self->transients; it; it = g_slist_next(it)) {
2346         if (client_focused(it->data)) return it->data;
2347         if ((ret = client_search_focus_tree(it->data))) return ret;
2348     }
2349     return NULL;
2350 }
2351
2352 ObClient *client_search_focus_tree_full(ObClient *self)
2353 {
2354     if (self->parents) {
2355         GSList *it;
2356
2357         for (it = self->parents; it; it = g_slist_next(it)) {
2358             ObClient *c = it->data;
2359             if ((c = client_search_focus_tree_full(it->data))) return c;
2360         }
2361
2362         return NULL;
2363     }
2364     else {
2365         /* this function checks the whole tree, the client_search_focus_tree
2366            does not, so we need to check this window */
2367         if (client_focused(self))
2368             return self;
2369         return client_search_focus_tree(self);
2370     }
2371 }
2372
2373 ObClient *client_search_focus_group_full(ObClient *self)
2374 {
2375     GSList *it;
2376
2377     if (self->group) {
2378         for (it = self->group->members; it; it = g_slist_next(it)) {
2379             ObClient *c = it->data;
2380
2381             if (client_focused(c)) return c;
2382             if ((c = client_search_focus_tree(it->data))) return c;
2383         }
2384     } else
2385         if (client_focused(self)) return self;
2386     return NULL;
2387 }
2388
2389 gboolean client_has_parent(ObClient *self)
2390 {
2391     return self->parents != NULL;
2392 }
2393
2394 static ObStackingLayer calc_layer(ObClient *self)
2395 {
2396     ObStackingLayer l;
2397     Rect *monitor;
2398
2399     monitor = screen_physical_area_monitor(client_monitor(self));
2400
2401     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2402         l = OB_STACKING_LAYER_DESKTOP;
2403     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2404         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2405         else l = OB_STACKING_LAYER_ABOVE;
2406     }
2407     else if ((self->fullscreen ||
2408               /* No decorations and fills the monitor = oldskool fullscreen.
2409                  But not for maximized windows.
2410               */
2411               (self->decorations == 0 &&
2412                !(self->max_horz && self->max_vert) &&
2413                RECT_EQUAL(self->area, *monitor))) &&
2414              (client_focused(self) || client_search_focus_tree(self)))
2415         l = OB_STACKING_LAYER_FULLSCREEN;
2416     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2417     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2418     else l = OB_STACKING_LAYER_NORMAL;
2419
2420     g_free(monitor);
2421
2422     return l;
2423 }
2424
2425 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2426                                         ObStackingLayer min)
2427 {
2428     ObStackingLayer old, own;
2429     GSList *it;
2430
2431     old = self->layer;
2432     own = calc_layer(self);
2433     self->layer = MAX(own, min);
2434
2435     if (self->layer != old) {
2436         stacking_remove(CLIENT_AS_WINDOW(self));
2437         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2438     }
2439
2440     for (it = self->transients; it; it = g_slist_next(it))
2441         client_calc_layer_recursive(it->data, orig,
2442                                     self->layer);
2443 }
2444
2445 void client_calc_layer(ObClient *self)
2446 {
2447     ObClient *orig;
2448     GSList *it;
2449
2450     orig = self;
2451
2452     /* transients take on the layer of their parents */
2453     it = client_search_all_top_parents(self);
2454
2455     for (; it; it = g_slist_next(it))
2456         client_calc_layer_recursive(it->data, orig, 0);
2457 }
2458
2459 gboolean client_should_show(ObClient *self)
2460 {
2461     if (self->iconic)
2462         return FALSE;
2463     if (client_normal(self) && screen_showing_desktop)
2464         return FALSE;
2465     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2466         return TRUE;
2467
2468     return FALSE;
2469 }
2470
2471 gboolean client_show(ObClient *self)
2472 {
2473     gboolean show = FALSE;
2474
2475     if (client_should_show(self)) {
2476         frame_show(self->frame);
2477         show = TRUE;
2478
2479         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2480            it needs to be in IconicState. This includes when it is on another
2481            desktop!
2482         */
2483         client_change_wm_state(self);
2484     }
2485     return show;
2486 }
2487
2488 gboolean client_hide(ObClient *self)
2489 {
2490     gboolean hide = FALSE;
2491
2492     if (!client_should_show(self)) {
2493         if (self == focus_client) {
2494             /* if there is a grab going on, then we need to cancel it. if we
2495                move focus during the grab, applications will get
2496                NotifyWhileGrabbed events and ignore them !
2497
2498                actions should not rely on being able to move focus during an
2499                interactive grab.
2500             */
2501             event_cancel_all_key_grabs();
2502         }
2503
2504         /* We don't need to ignore enter events here.
2505            The window can hide/iconify in 3 different ways:
2506            1 - through an x message. in this case we ignore all enter events
2507                caused by responding to the x message (unless underMouse)
2508            2 - by a keyboard action. in this case we ignore all enter events
2509                caused by the action
2510            3 - by a mouse action. in this case they are doing stuff with the
2511                mouse and focus _should_ move.
2512
2513            Also in action_end, we simulate an enter event that can't be ignored
2514            so trying to ignore them is futile in case 3 anyways
2515         */
2516
2517         frame_hide(self->frame);
2518         hide = TRUE;
2519
2520         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2521            it needs to be in IconicState. This includes when it is on another
2522            desktop!
2523         */
2524         client_change_wm_state(self);
2525     }
2526     return hide;
2527 }
2528
2529 void client_showhide(ObClient *self)
2530 {
2531     if (!client_show(self))
2532         client_hide(self);
2533 }
2534
2535 gboolean client_normal(ObClient *self) {
2536     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2537               self->type == OB_CLIENT_TYPE_DOCK ||
2538               self->type == OB_CLIENT_TYPE_SPLASH);
2539 }
2540
2541 gboolean client_helper(ObClient *self)
2542 {
2543     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2544             self->type == OB_CLIENT_TYPE_MENU ||
2545             self->type == OB_CLIENT_TYPE_TOOLBAR);
2546 }
2547
2548 gboolean client_mouse_focusable(ObClient *self)
2549 {
2550     return !(self->type == OB_CLIENT_TYPE_MENU ||
2551              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2552              self->type == OB_CLIENT_TYPE_SPLASH ||
2553              self->type == OB_CLIENT_TYPE_DOCK);
2554 }
2555
2556 gboolean client_enter_focusable(ObClient *self)
2557 {
2558     /* you can focus desktops but it shouldn't on enter */
2559     return (client_mouse_focusable(self) &&
2560             self->type != OB_CLIENT_TYPE_DESKTOP);
2561 }
2562
2563
2564 static void client_apply_startup_state(ObClient *self,
2565                                        gint x, gint y, gint w, gint h)
2566 {
2567     /* save the states that we are going to apply */
2568     gboolean iconic = self->iconic;
2569     gboolean fullscreen = self->fullscreen;
2570     gboolean undecorated = self->undecorated;
2571     gboolean shaded = self->shaded;
2572     gboolean demands_attention = self->demands_attention;
2573     gboolean max_horz = self->max_horz;
2574     gboolean max_vert = self->max_vert;
2575     Rect oldarea;
2576     gint l;
2577
2578     /* turn them all off in the client, so they won't affect the window
2579        being placed */
2580     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2581         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2582
2583     /* move the client to its placed position, or it it's already there,
2584        generate a ConfigureNotify telling the client where it is.
2585
2586        do this after adjusting the frame. otherwise it gets all weird and
2587        clients don't work right
2588
2589        do this before applying the states so they have the correct
2590        pre-max/pre-fullscreen values
2591     */
2592     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2593     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2594              self->window, x, y, w, h);
2595     /* save the area, and make it where it should be for the premax stuff */
2596     oldarea = self->area;
2597     RECT_SET(self->area, x, y, w, h);
2598
2599     /* apply the states. these are in a carefully crafted order.. */
2600
2601     if (iconic)
2602         client_iconify(self, TRUE, FALSE, TRUE);
2603     if (fullscreen)
2604         client_fullscreen(self, TRUE);
2605     if (undecorated)
2606         client_set_undecorated(self, TRUE);
2607     if (shaded)
2608         client_shade(self, TRUE);
2609     if (demands_attention)
2610         client_hilite(self, TRUE);
2611
2612     if (max_vert && max_horz)
2613         client_maximize(self, TRUE, 0);
2614     else if (max_vert)
2615         client_maximize(self, TRUE, 2);
2616     else if (max_horz)
2617         client_maximize(self, TRUE, 1);
2618
2619     /* if the window hasn't been configured yet, then do so now */
2620     if (!fullscreen && !max_vert && !max_horz) {
2621         self->area = oldarea;
2622         client_configure(self, x, y, w, h, FALSE, TRUE);
2623     }
2624
2625     /* set the desktop hint, to make sure that it always exists */
2626     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2627
2628     /* nothing to do for the other states:
2629        skip_taskbar
2630        skip_pager
2631        modal
2632        above
2633        below
2634     */
2635 }
2636
2637 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2638 {
2639     /* these should be the current values. this is for when you're not moving,
2640        just resizing */
2641     g_assert(*x == self->area.x);
2642     g_assert(oldw == self->area.width);
2643
2644     /* horizontal */
2645     switch (self->gravity) {
2646     default:
2647     case NorthWestGravity:
2648     case WestGravity:
2649     case SouthWestGravity:
2650     case StaticGravity:
2651     case ForgetGravity:
2652         break;
2653     case NorthGravity:
2654     case CenterGravity:
2655     case SouthGravity:
2656         *x -= (neww - oldw) / 2;
2657         break;
2658     case NorthEastGravity:
2659     case EastGravity:
2660     case SouthEastGravity:
2661         *x -= neww - oldw;
2662         break;
2663     }
2664 }
2665
2666 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2667 {
2668     /* these should be the current values. this is for when you're not moving,
2669        just resizing */
2670     g_assert(*y == self->area.y);
2671     g_assert(oldh == self->area.height);
2672
2673     /* vertical */
2674     switch (self->gravity) {
2675     default:
2676     case NorthWestGravity:
2677     case NorthGravity:
2678     case NorthEastGravity:
2679     case StaticGravity:
2680     case ForgetGravity:
2681         break;
2682     case WestGravity:
2683     case CenterGravity:
2684     case EastGravity:
2685         *y -= (newh - oldh) / 2;
2686         break;
2687     case SouthWestGravity:
2688     case SouthGravity:
2689     case SouthEastGravity:
2690         *y -= newh - oldh;
2691         break;
2692     }
2693 }
2694
2695 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2696                           gint *logicalw, gint *logicalh,
2697                           gboolean user)
2698 {
2699     Rect desired = {*x, *y, *w, *h};
2700     frame_rect_to_frame(self->frame, &desired);
2701
2702     /* make the frame recalculate its dimentions n shit without changing
2703        anything visible for real, this way the constraints below can work with
2704        the updated frame dimensions. */
2705     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2706
2707     /* gets the frame's position */
2708     frame_client_gravity(self->frame, x, y, *w, *h);
2709
2710     /* these positions are frame positions, not client positions */
2711
2712     /* set the size and position if fullscreen */
2713     if (self->fullscreen) {
2714         Rect *a;
2715         guint i;
2716
2717         i = screen_find_monitor(&desired);
2718         a = screen_physical_area_monitor(i);
2719
2720         *x = a->x;
2721         *y = a->y;
2722         *w = a->width;
2723         *h = a->height;
2724
2725         user = FALSE; /* ignore if the client can't be moved/resized when it
2726                          is fullscreening */
2727
2728         g_free(a);
2729     } else if (self->max_horz || self->max_vert) {
2730         Rect *a;
2731         guint i;
2732
2733         i = screen_find_monitor(&desired);
2734         /* use all possible struts when maximizing to the full screen */
2735         a = screen_area_monitor(self->desktop, i,
2736                                 (self->max_horz && self->max_vert ?
2737                                  NULL : &desired));
2738
2739         /* set the size and position if maximized */
2740         if (self->max_horz) {
2741             *x = a->x;
2742             *w = a->width - self->frame->size.left - self->frame->size.right;
2743         }
2744         if (self->max_vert) {
2745             *y = a->y;
2746             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2747         }
2748
2749         user = FALSE; /* ignore if the client can't be moved/resized when it
2750                          is maximizing */
2751
2752         g_free(a);
2753     }
2754
2755     /* gets the client's position */
2756     frame_frame_gravity(self->frame, x, y, *w, *h);
2757
2758     /* work within the prefered sizes given by the window */
2759     if (!(*w == self->area.width && *h == self->area.height)) {
2760         gint basew, baseh, minw, minh;
2761         gint incw, inch;
2762         gfloat minratio, maxratio;
2763
2764         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2765         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2766         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2767             0 : self->min_ratio;
2768         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2769             0 : self->max_ratio;
2770
2771         /* base size is substituted with min size if not specified */
2772         if (self->base_size.width || self->base_size.height) {
2773             basew = self->base_size.width;
2774             baseh = self->base_size.height;
2775         } else {
2776             basew = self->min_size.width;
2777             baseh = self->min_size.height;
2778         }
2779         /* min size is substituted with base size if not specified */
2780         if (self->min_size.width || self->min_size.height) {
2781             minw = self->min_size.width;
2782             minh = self->min_size.height;
2783         } else {
2784             minw = self->base_size.width;
2785             minh = self->base_size.height;
2786         }
2787
2788         /* if this is a user-requested resize, then check against min/max
2789            sizes */
2790
2791         /* smaller than min size or bigger than max size? */
2792         if (*w > self->max_size.width) *w = self->max_size.width;
2793         if (*w < minw) *w = minw;
2794         if (*h > self->max_size.height) *h = self->max_size.height;
2795         if (*h < minh) *h = minh;
2796
2797         *w -= basew;
2798         *h -= baseh;
2799
2800         /* keep to the increments */
2801         *w /= incw;
2802         *h /= inch;
2803
2804         /* you cannot resize to nothing */
2805         if (basew + *w < 1) *w = 1 - basew;
2806         if (baseh + *h < 1) *h = 1 - baseh;
2807
2808         /* save the logical size */
2809         *logicalw = incw > 1 ? *w : *w + basew;
2810         *logicalh = inch > 1 ? *h : *h + baseh;
2811
2812         *w *= incw;
2813         *h *= inch;
2814
2815         *w += basew;
2816         *h += baseh;
2817
2818         /* adjust the height to match the width for the aspect ratios.
2819            for this, min size is not substituted for base size ever. */
2820         *w -= self->base_size.width;
2821         *h -= self->base_size.height;
2822
2823         if (minratio)
2824             if (*h * minratio > *w) {
2825                 *h = (gint)(*w / minratio);
2826
2827                 /* you cannot resize to nothing */
2828                 if (*h < 1) {
2829                     *h = 1;
2830                     *w = (gint)(*h * minratio);
2831                 }
2832             }
2833         if (maxratio)
2834             if (*h * maxratio < *w) {
2835                 *h = (gint)(*w / maxratio);
2836
2837                 /* you cannot resize to nothing */
2838                 if (*h < 1) {
2839                     *h = 1;
2840                     *w = (gint)(*h * minratio);
2841                 }
2842             }
2843
2844         *w += self->base_size.width;
2845         *h += self->base_size.height;
2846     }
2847
2848     /* these override the above states! if you cant move you can't move! */
2849     if (user) {
2850         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2851             *x = self->area.x;
2852             *y = self->area.y;
2853         }
2854         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2855             *w = self->area.width;
2856             *h = self->area.height;
2857         }
2858     }
2859
2860     g_assert(*w > 0);
2861     g_assert(*h > 0);
2862 }
2863
2864
2865 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2866                       gboolean user, gboolean final)
2867 {
2868     gint oldw, oldh;
2869     gboolean send_resize_client;
2870     gboolean moved = FALSE, resized = FALSE;
2871     gboolean fmoved, fresized;
2872     guint fdecor = self->frame->decorations;
2873     gboolean fhorz = self->frame->max_horz;
2874     gboolean fvert = self->frame->max_vert;
2875     gint logicalw, logicalh;
2876
2877     /* find the new x, y, width, and height (and logical size) */
2878     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2879
2880     /* set the logical size if things changed */
2881     if (!(w == self->area.width && h == self->area.height))
2882         SIZE_SET(self->logical_size, logicalw, logicalh);
2883
2884     /* figure out if we moved or resized or what */
2885     moved = (x != self->area.x || y != self->area.y);
2886     resized = (w != self->area.width || h != self->area.height);
2887
2888     oldw = self->area.width;
2889     oldh = self->area.height;
2890     RECT_SET(self->area, x, y, w, h);
2891
2892     /* for app-requested resizes, always resize if 'resized' is true.
2893        for user-requested ones, only resize if final is true, or when
2894        resizing in redraw mode */
2895     send_resize_client = ((!user && resized) ||
2896                           (user && (final ||
2897                                     (resized && config_resize_redraw))));
2898
2899     /* if the client is enlarging, then resize the client before the frame */
2900     if (send_resize_client && (w > oldw || h > oldh)) {
2901         XMoveResizeWindow(ob_display, self->window,
2902                           self->frame->size.left, self->frame->size.top,
2903                           MAX(w, oldw), MAX(h, oldh));
2904         frame_adjust_client_area(self->frame);
2905     }
2906
2907     /* find the frame's dimensions and move/resize it */
2908     fmoved = moved;
2909     fresized = resized;
2910
2911     /* if decorations changed, then readjust everything for the frame */
2912     if (self->decorations != fdecor ||
2913         self->max_horz != fhorz || self->max_vert != fvert)
2914     {
2915         fmoved = fresized = TRUE;
2916     }
2917
2918     /* adjust the frame */
2919     if (fmoved || fresized)
2920         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2921
2922     /* This is kinda tricky and should not be changed.. let me explain!
2923
2924        When user = FALSE, then the request is coming from the application
2925        itself, and we are more strict about when to send a synthetic
2926        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
2927        in this case.
2928
2929        When user = TRUE, then the request is coming from "us", like when we
2930        maximize a window or sometihng.  In this case we are more lenient.  We
2931        used to follow the same rules as above, but _Java_ Swing can't handle
2932        this. So just to appease Swing, when user = TRUE, we always send
2933        a synthetic ConfigureNotify to give the window its root coordinates.
2934     */
2935     if ((!user && !resized) || (user && final))
2936     {
2937         XEvent event;
2938
2939         /* we have reset the client to 0 border width, so don't include
2940            it in these coords */
2941         POINT_SET(self->root_pos,
2942                   self->frame->area.x + self->frame->size.left -
2943                   self->border_width,
2944                   self->frame->area.y + self->frame->size.top -
2945                   self->border_width);
2946
2947         event.type = ConfigureNotify;
2948         event.xconfigure.display = ob_display;
2949         event.xconfigure.event = self->window;
2950         event.xconfigure.window = self->window;
2951
2952         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2953                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2954
2955         /* root window real coords */
2956         event.xconfigure.x = self->root_pos.x;
2957         event.xconfigure.y = self->root_pos.y;
2958         event.xconfigure.width = w;
2959         event.xconfigure.height = h;
2960         event.xconfigure.border_width = self->border_width;
2961         event.xconfigure.above = None;
2962         event.xconfigure.override_redirect = FALSE;
2963         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2964                    FALSE, StructureNotifyMask, &event);
2965     }
2966
2967     /* if the client is shrinking, then resize the frame before the client.
2968
2969        both of these resize sections may run, because the top one only resizes
2970        in the direction that is growing
2971      */
2972     if (send_resize_client && (w <= oldw || h <= oldh)) {
2973         frame_adjust_client_area(self->frame);
2974         XMoveResizeWindow(ob_display, self->window,
2975                           self->frame->size.left, self->frame->size.top, w, h);
2976     }
2977
2978     XFlush(ob_display);
2979 }
2980
2981 void client_fullscreen(ObClient *self, gboolean fs)
2982 {
2983     gint x, y, w, h;
2984
2985     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2986         self->fullscreen == fs) return;                   /* already done */
2987
2988     self->fullscreen = fs;
2989     client_change_state(self); /* change the state hints on the client */
2990
2991     if (fs) {
2992         self->pre_fullscreen_area = self->area;
2993         /* if the window is maximized, its area isn't all that meaningful.
2994            save it's premax area instead. */
2995         if (self->max_horz) {
2996             self->pre_fullscreen_area.x = self->pre_max_area.x;
2997             self->pre_fullscreen_area.width = self->pre_max_area.width;
2998         }
2999         if (self->max_vert) {
3000             self->pre_fullscreen_area.y = self->pre_max_area.y;
3001             self->pre_fullscreen_area.height = self->pre_max_area.height;
3002         }
3003
3004         /* these will help configure_full figure out where to fullscreen
3005            the window */
3006         x = self->area.x;
3007         y = self->area.y;
3008         w = self->area.width;
3009         h = self->area.height;
3010     } else {
3011         g_assert(self->pre_fullscreen_area.width > 0 &&
3012                  self->pre_fullscreen_area.height > 0);
3013
3014         x = self->pre_fullscreen_area.x;
3015         y = self->pre_fullscreen_area.y;
3016         w = self->pre_fullscreen_area.width;
3017         h = self->pre_fullscreen_area.height;
3018         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3019     }
3020
3021     client_setup_decor_and_functions(self, FALSE);
3022     client_move_resize(self, x, y, w, h);
3023
3024     /* and adjust our layer/stacking. do this after resizing the window,
3025        and applying decorations, because windows which fill the screen are
3026        considered "fullscreen" and it affects their layer */
3027     client_calc_layer(self);
3028
3029     if (fs) {
3030         /* try focus us when we go into fullscreen mode */
3031         client_focus(self);
3032     }
3033 }
3034
3035 static void client_iconify_recursive(ObClient *self,
3036                                      gboolean iconic, gboolean curdesk,
3037                                      gboolean hide_animation)
3038 {
3039     GSList *it;
3040     gboolean changed = FALSE;
3041
3042
3043     if (self->iconic != iconic) {
3044         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3045                  self->window);
3046
3047         if (iconic) {
3048             /* don't let non-normal windows iconify along with their parents
3049                or whatever */
3050             if (client_normal(self)) {
3051                 self->iconic = iconic;
3052
3053                 /* update the focus lists.. iconic windows go to the bottom of
3054                    the list */
3055                 focus_order_to_bottom(self);
3056
3057                 changed = TRUE;
3058             }
3059         } else {
3060             self->iconic = iconic;
3061
3062             if (curdesk && self->desktop != screen_desktop &&
3063                 self->desktop != DESKTOP_ALL)
3064                 client_set_desktop(self, screen_desktop, FALSE);
3065
3066             /* this puts it after the current focused window */
3067             focus_order_remove(self);
3068             focus_order_add_new(self);
3069
3070             changed = TRUE;
3071         }
3072     }
3073
3074     if (changed) {
3075         client_change_state(self);
3076         if (config_animate_iconify && !hide_animation)
3077             frame_begin_iconify_animation(self->frame, iconic);
3078         /* do this after starting the animation so it doesn't flash */
3079         client_showhide(self);
3080     }
3081
3082     /* iconify all direct transients, and deiconify all transients
3083        (non-direct too) */
3084     for (it = self->transients; it; it = g_slist_next(it))
3085         if (it->data != self)
3086             if (client_is_direct_child(self, it->data) || !iconic)
3087                 client_iconify_recursive(it->data, iconic, curdesk,
3088                                          hide_animation);
3089 }
3090
3091 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3092                     gboolean hide_animation)
3093 {
3094     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3095         /* move up the transient chain as far as possible first */
3096         self = client_search_top_direct_parent(self);
3097         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3098     }
3099 }
3100
3101 void client_maximize(ObClient *self, gboolean max, gint dir)
3102 {
3103     gint x, y, w, h;
3104
3105     g_assert(dir == 0 || dir == 1 || dir == 2);
3106     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3107
3108     /* check if already done */
3109     if (max) {
3110         if (dir == 0 && self->max_horz && self->max_vert) return;
3111         if (dir == 1 && self->max_horz) return;
3112         if (dir == 2 && self->max_vert) return;
3113     } else {
3114         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3115         if (dir == 1 && !self->max_horz) return;
3116         if (dir == 2 && !self->max_vert) return;
3117     }
3118
3119     /* these will help configure_full figure out which screen to fill with
3120        the window */
3121     x = self->area.x;
3122     y = self->area.y;
3123     w = self->area.width;
3124     h = self->area.height;
3125
3126     if (max) {
3127         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3128             RECT_SET(self->pre_max_area,
3129                      self->area.x, self->pre_max_area.y,
3130                      self->area.width, self->pre_max_area.height);
3131         }
3132         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3133             RECT_SET(self->pre_max_area,
3134                      self->pre_max_area.x, self->area.y,
3135                      self->pre_max_area.width, self->area.height);
3136         }
3137     } else {
3138         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3139             g_assert(self->pre_max_area.width > 0);
3140
3141             x = self->pre_max_area.x;
3142             w = self->pre_max_area.width;
3143
3144             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3145                      0, self->pre_max_area.height);
3146         }
3147         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3148             g_assert(self->pre_max_area.height > 0);
3149
3150             y = self->pre_max_area.y;
3151             h = self->pre_max_area.height;
3152
3153             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3154                      self->pre_max_area.width, 0);
3155         }
3156     }
3157
3158     if (dir == 0 || dir == 1) /* horz */
3159         self->max_horz = max;
3160     if (dir == 0 || dir == 2) /* vert */
3161         self->max_vert = max;
3162
3163     client_change_state(self); /* change the state hints on the client */
3164
3165     client_setup_decor_and_functions(self, FALSE);
3166     client_move_resize(self, x, y, w, h);
3167 }
3168
3169 void client_shade(ObClient *self, gboolean shade)
3170 {
3171     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3172          shade) ||                         /* can't shade */
3173         self->shaded == shade) return;     /* already done */
3174
3175     self->shaded = shade;
3176     client_change_state(self);
3177     client_change_wm_state(self); /* the window is being hidden/shown */
3178     /* resize the frame to just the titlebar */
3179     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3180 }
3181
3182 void client_close(ObClient *self)
3183 {
3184     XEvent ce;
3185
3186     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3187
3188     /* in the case that the client provides no means to requesting that it
3189        close, we just kill it */
3190     if (!self->delete_window)
3191         client_kill(self);
3192
3193     /*
3194       XXX: itd be cool to do timeouts and shit here for killing the client's
3195       process off
3196       like... if the window is around after 5 seconds, then the close button
3197       turns a nice red, and if this function is called again, the client is
3198       explicitly killed.
3199     */
3200
3201     ce.xclient.type = ClientMessage;
3202     ce.xclient.message_type =  prop_atoms.wm_protocols;
3203     ce.xclient.display = ob_display;
3204     ce.xclient.window = self->window;
3205     ce.xclient.format = 32;
3206     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3207     ce.xclient.data.l[1] = event_curtime;
3208     ce.xclient.data.l[2] = 0l;
3209     ce.xclient.data.l[3] = 0l;
3210     ce.xclient.data.l[4] = 0l;
3211     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3212 }
3213
3214 void client_kill(ObClient *self)
3215 {
3216     XKillClient(ob_display, self->window);
3217 }
3218
3219 void client_hilite(ObClient *self, gboolean hilite)
3220 {
3221     if (self->demands_attention == hilite)
3222         return; /* no change */
3223
3224     /* don't allow focused windows to hilite */
3225     self->demands_attention = hilite && !client_focused(self);
3226     if (self->frame != NULL) { /* if we're mapping, just set the state */
3227         if (self->demands_attention)
3228             frame_flash_start(self->frame);
3229         else
3230             frame_flash_stop(self->frame);
3231         client_change_state(self);
3232     }
3233 }
3234
3235 void client_set_desktop_recursive(ObClient *self,
3236                                   guint target,
3237                                   gboolean donthide)
3238 {
3239     guint old;
3240     GSList *it;
3241
3242     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3243
3244         ob_debug("Setting desktop %u\n", target+1);
3245
3246         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3247
3248         old = self->desktop;
3249         self->desktop = target;
3250         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3251         /* the frame can display the current desktop state */
3252         frame_adjust_state(self->frame);
3253         /* 'move' the window to the new desktop */
3254         if (!donthide)
3255             client_showhide(self);
3256         /* raise if it was not already on the desktop */
3257         if (old != DESKTOP_ALL)
3258             stacking_raise(CLIENT_AS_WINDOW(self));
3259         /* the new desktop's geometry may be different, so we may need to
3260            resize, for example if we are maximized */
3261         client_reconfigure(self);
3262         if (STRUT_EXISTS(self->strut))
3263             screen_update_areas();
3264     }
3265
3266     /* move all transients */
3267     for (it = self->transients; it; it = g_slist_next(it))
3268         if (it->data != self)
3269             if (client_is_direct_child(self, it->data))
3270                 client_set_desktop_recursive(it->data, target, donthide);
3271 }
3272
3273 void client_set_desktop(ObClient *self, guint target, gboolean donthide)
3274 {
3275     self = client_search_top_direct_parent(self);
3276     client_set_desktop_recursive(self, target, donthide);
3277 }
3278
3279 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3280 {
3281     while (child != parent && (child = client_direct_parent(child)));
3282     return child == parent;
3283 }
3284
3285 ObClient *client_search_modal_child(ObClient *self)
3286 {
3287     GSList *it;
3288     ObClient *ret;
3289
3290     for (it = self->transients; it; it = g_slist_next(it)) {
3291         ObClient *c = it->data;
3292         if ((ret = client_search_modal_child(c))) return ret;
3293         if (c->modal) return c;
3294     }
3295     return NULL;
3296 }
3297
3298 gboolean client_validate(ObClient *self)
3299 {
3300     XEvent e;
3301
3302     XSync(ob_display, FALSE); /* get all events on the server */
3303
3304     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3305         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3306         XPutBackEvent(ob_display, &e);
3307         return FALSE;
3308     }
3309
3310     return TRUE;
3311 }
3312
3313 void client_set_wm_state(ObClient *self, glong state)
3314 {
3315     if (state == self->wmstate) return; /* no change */
3316
3317     switch (state) {
3318     case IconicState:
3319         client_iconify(self, TRUE, TRUE, FALSE);
3320         break;
3321     case NormalState:
3322         client_iconify(self, FALSE, TRUE, FALSE);
3323         break;
3324     }
3325 }
3326
3327 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3328 {
3329     gboolean shaded = self->shaded;
3330     gboolean fullscreen = self->fullscreen;
3331     gboolean undecorated = self->undecorated;
3332     gboolean max_horz = self->max_horz;
3333     gboolean max_vert = self->max_vert;
3334     gboolean modal = self->modal;
3335     gboolean iconic = self->iconic;
3336     gboolean demands_attention = self->demands_attention;
3337     gboolean above = self->above;
3338     gboolean below = self->below;
3339     gint i;
3340
3341     if (!(action == prop_atoms.net_wm_state_add ||
3342           action == prop_atoms.net_wm_state_remove ||
3343           action == prop_atoms.net_wm_state_toggle))
3344         /* an invalid action was passed to the client message, ignore it */
3345         return;
3346
3347     for (i = 0; i < 2; ++i) {
3348         Atom state = i == 0 ? data1 : data2;
3349
3350         if (!state) continue;
3351
3352         /* if toggling, then pick whether we're adding or removing */
3353         if (action == prop_atoms.net_wm_state_toggle) {
3354             if (state == prop_atoms.net_wm_state_modal)
3355                 action = modal ? prop_atoms.net_wm_state_remove :
3356                     prop_atoms.net_wm_state_add;
3357             else if (state == prop_atoms.net_wm_state_maximized_vert)
3358                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3359                     prop_atoms.net_wm_state_add;
3360             else if (state == prop_atoms.net_wm_state_maximized_horz)
3361                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3362                     prop_atoms.net_wm_state_add;
3363             else if (state == prop_atoms.net_wm_state_shaded)
3364                 action = shaded ? prop_atoms.net_wm_state_remove :
3365                     prop_atoms.net_wm_state_add;
3366             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3367                 action = self->skip_taskbar ?
3368                     prop_atoms.net_wm_state_remove :
3369                     prop_atoms.net_wm_state_add;
3370             else if (state == prop_atoms.net_wm_state_skip_pager)
3371                 action = self->skip_pager ?
3372                     prop_atoms.net_wm_state_remove :
3373                     prop_atoms.net_wm_state_add;
3374             else if (state == prop_atoms.net_wm_state_hidden)
3375                 action = self->iconic ?
3376                     prop_atoms.net_wm_state_remove :
3377                     prop_atoms.net_wm_state_add;
3378             else if (state == prop_atoms.net_wm_state_fullscreen)
3379                 action = fullscreen ?
3380                     prop_atoms.net_wm_state_remove :
3381                     prop_atoms.net_wm_state_add;
3382             else if (state == prop_atoms.net_wm_state_above)
3383                 action = self->above ? prop_atoms.net_wm_state_remove :
3384                     prop_atoms.net_wm_state_add;
3385             else if (state == prop_atoms.net_wm_state_below)
3386                 action = self->below ? prop_atoms.net_wm_state_remove :
3387                     prop_atoms.net_wm_state_add;
3388             else if (state == prop_atoms.net_wm_state_demands_attention)
3389                 action = self->demands_attention ?
3390                     prop_atoms.net_wm_state_remove :
3391                     prop_atoms.net_wm_state_add;
3392             else if (state == prop_atoms.ob_wm_state_undecorated)
3393                 action = undecorated ? prop_atoms.net_wm_state_remove :
3394                     prop_atoms.net_wm_state_add;
3395         }
3396
3397         if (action == prop_atoms.net_wm_state_add) {
3398             if (state == prop_atoms.net_wm_state_modal) {
3399                 modal = TRUE;
3400             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3401                 max_vert = TRUE;
3402             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3403                 max_horz = TRUE;
3404             } else if (state == prop_atoms.net_wm_state_shaded) {
3405                 shaded = TRUE;
3406             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3407                 self->skip_taskbar = TRUE;
3408             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3409                 self->skip_pager = TRUE;
3410             } else if (state == prop_atoms.net_wm_state_hidden) {
3411                 iconic = TRUE;
3412             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3413                 fullscreen = TRUE;
3414             } else if (state == prop_atoms.net_wm_state_above) {
3415                 above = TRUE;
3416                 below = FALSE;
3417             } else if (state == prop_atoms.net_wm_state_below) {
3418                 above = FALSE;
3419                 below = TRUE;
3420             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3421                 demands_attention = TRUE;
3422             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3423                 undecorated = TRUE;
3424             }
3425
3426         } else { /* action == prop_atoms.net_wm_state_remove */
3427             if (state == prop_atoms.net_wm_state_modal) {
3428                 modal = FALSE;
3429             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3430                 max_vert = FALSE;
3431             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3432                 max_horz = FALSE;
3433             } else if (state == prop_atoms.net_wm_state_shaded) {
3434                 shaded = FALSE;
3435             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3436                 self->skip_taskbar = FALSE;
3437             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3438                 self->skip_pager = FALSE;
3439             } else if (state == prop_atoms.net_wm_state_hidden) {
3440                 iconic = FALSE;
3441             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3442                 fullscreen = FALSE;
3443             } else if (state == prop_atoms.net_wm_state_above) {
3444                 above = FALSE;
3445             } else if (state == prop_atoms.net_wm_state_below) {
3446                 below = FALSE;
3447             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3448                 demands_attention = FALSE;
3449             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3450                 undecorated = FALSE;
3451             }
3452         }
3453     }
3454
3455     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3456         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3457             /* toggling both */
3458             if (max_horz == max_vert) { /* both going the same way */
3459                 client_maximize(self, max_horz, 0);
3460             } else {
3461                 client_maximize(self, max_horz, 1);
3462                 client_maximize(self, max_vert, 2);
3463             }
3464         } else {
3465             /* toggling one */
3466             if (max_horz != self->max_horz)
3467                 client_maximize(self, max_horz, 1);
3468             else
3469                 client_maximize(self, max_vert, 2);
3470         }
3471     }
3472     /* change fullscreen state before shading, as it will affect if the window
3473        can shade or not */
3474     if (fullscreen != self->fullscreen)
3475         client_fullscreen(self, fullscreen);
3476     if (shaded != self->shaded)
3477         client_shade(self, shaded);
3478     if (undecorated != self->undecorated)
3479         client_set_undecorated(self, undecorated);
3480     if (above != self->above || below != self->below) {
3481         self->above = above;
3482         self->below = below;
3483         client_calc_layer(self);
3484     }
3485
3486     if (modal != self->modal) {
3487         self->modal = modal;
3488         /* when a window changes modality, then its stacking order with its
3489            transients needs to change */
3490         stacking_raise(CLIENT_AS_WINDOW(self));
3491
3492         /* it also may get focused. if something is focused that shouldn't
3493            be focused anymore, then move the focus */
3494         if (focus_client && client_focus_target(focus_client) != focus_client)
3495             client_focus(focus_client);
3496     }
3497
3498     if (iconic != self->iconic)
3499         client_iconify(self, iconic, FALSE, FALSE);
3500
3501     if (demands_attention != self->demands_attention)
3502         client_hilite(self, demands_attention);
3503
3504     client_change_state(self); /* change the hint to reflect these changes */
3505 }
3506
3507 ObClient *client_focus_target(ObClient *self)
3508 {
3509     ObClient *child = NULL;
3510
3511     child = client_search_modal_child(self);
3512     if (child) return child;
3513     return self;
3514 }
3515
3516 gboolean client_can_focus(ObClient *self)
3517 {
3518     /* choose the correct target */
3519     self = client_focus_target(self);
3520
3521     if (!self->frame->visible)
3522         return FALSE;
3523
3524     if (!(self->can_focus || self->focus_notify))
3525         return FALSE;
3526
3527     return TRUE;
3528 }
3529
3530 gboolean client_focus(ObClient *self)
3531 {
3532     /* we might not focus this window, so if we have modal children which would
3533        be focused instead, bring them to this desktop */
3534     client_bring_modal_windows(self);
3535
3536     /* choose the correct target */
3537     self = client_focus_target(self);
3538
3539     if (!client_can_focus(self)) {
3540         ob_debug_type(OB_DEBUG_FOCUS,
3541                       "Client %s can't be focused\n", self->title);
3542         return FALSE;
3543     }
3544
3545     ob_debug_type(OB_DEBUG_FOCUS,
3546                   "Focusing client \"%s\" (0x%x) at time %u\n",
3547                   self->title, self->window, event_curtime);
3548
3549     /* if there is a grab going on, then we need to cancel it. if we move
3550        focus during the grab, applications will get NotifyWhileGrabbed events
3551        and ignore them !
3552
3553        actions should not rely on being able to move focus during an
3554        interactive grab.
3555     */
3556     event_cancel_all_key_grabs();
3557
3558     xerror_set_ignore(TRUE);
3559     xerror_occured = FALSE;
3560
3561     if (self->can_focus) {
3562         /* This can cause a BadMatch error with CurrentTime, or if an app
3563            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3564         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3565                        event_curtime);
3566     }
3567
3568     if (self->focus_notify) {
3569         XEvent ce;
3570         ce.xclient.type = ClientMessage;
3571         ce.xclient.message_type = prop_atoms.wm_protocols;
3572         ce.xclient.display = ob_display;
3573         ce.xclient.window = self->window;
3574         ce.xclient.format = 32;
3575         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3576         ce.xclient.data.l[1] = event_curtime;
3577         ce.xclient.data.l[2] = 0l;
3578         ce.xclient.data.l[3] = 0l;
3579         ce.xclient.data.l[4] = 0l;
3580         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3581     }
3582
3583     xerror_set_ignore(FALSE);
3584
3585     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3586     return !xerror_occured;
3587 }
3588
3589 /*! Present the client to the user.
3590   @param raise If the client should be raised or not. You should only set
3591                raise to false if you don't care if the window is completely
3592                hidden.
3593 */
3594 static void client_present(ObClient *self, gboolean here, gboolean raise)
3595 {
3596     /* if using focus_delay, stop the timer now so that focus doesn't
3597        go moving on us */
3598     event_halt_focus_delay();
3599
3600     if (client_normal(self) && screen_showing_desktop)
3601         screen_show_desktop(FALSE, self);
3602     if (self->iconic)
3603         client_iconify(self, FALSE, here, FALSE);
3604     if (self->desktop != DESKTOP_ALL &&
3605         self->desktop != screen_desktop)
3606     {
3607         if (here)
3608             client_set_desktop(self, screen_desktop, FALSE);
3609         else
3610             screen_set_desktop(self->desktop, FALSE);
3611     } else if (!self->frame->visible)
3612         /* if its not visible for other reasons, then don't mess
3613            with it */
3614         return;
3615     if (self->shaded)
3616         client_shade(self, FALSE);
3617     if (raise)
3618         stacking_raise(CLIENT_AS_WINDOW(self));
3619
3620     client_focus(self);
3621 }
3622
3623 void client_activate(ObClient *self, gboolean here, gboolean user)
3624 {
3625     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3626     gboolean allow = FALSE;
3627
3628     /* if the currently focused app doesn't set a user_time, then it can't
3629        benefit from any focus stealing prevention.
3630
3631        if the timestamp is missing in the request then let it go through
3632        even if it is source=app, because EVERY APPLICATION DOES THIS because
3633        GTK IS VERY BUGGY AND HARDCODES source=application... WHY!?
3634     */
3635     if (!last_time || !event_curtime)
3636         allow = TRUE;
3637     /* otherwise, if they didn't give a time stamp or if it is too old, they
3638        don't get focus */
3639     else
3640         allow = event_time_after(event_curtime, last_time);
3641
3642     ob_debug_type(OB_DEBUG_FOCUS,
3643                   "Want to activate window 0x%x with time %u (last time %u), "
3644                   "source=%s allowing? %d\n",
3645                   self->window, event_curtime, last_time,
3646                   (user ? "user" : "application"), allow);
3647
3648     if (allow)
3649         client_present(self, here, TRUE);
3650     else
3651         /* don't focus it but tell the user it wants attention */
3652         client_hilite(self, TRUE);
3653 }
3654
3655 static void client_bring_windows_recursive(ObClient *self,
3656                                            guint desktop,
3657                                            gboolean helpers,
3658                                            gboolean modals,
3659                                            gboolean iconic)
3660 {
3661     GSList *it;
3662
3663     for (it = self->transients; it; it = g_slist_next(it))
3664         client_bring_windows_recursive(it->data, desktop,
3665                                        helpers, modals, iconic);
3666
3667     if (((helpers && client_helper(self)) ||
3668          (modals && self->modal)) &&
3669         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3670          (iconic && self->iconic)))
3671     {
3672         if (iconic && self->iconic)
3673             client_iconify(self, FALSE, TRUE, FALSE);
3674         else
3675             client_set_desktop(self, desktop, FALSE);
3676     }
3677 }
3678
3679 void client_bring_helper_windows(ObClient *self)
3680 {
3681     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3682 }
3683
3684 void client_bring_modal_windows(ObClient *self)
3685 {
3686     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3687 }
3688
3689 gboolean client_focused(ObClient *self)
3690 {
3691     return self == focus_client;
3692 }
3693
3694 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3695 {
3696     guint i;
3697     gulong min_diff, min_i;
3698
3699     if (!self->nicons) {
3700         ObClientIcon *parent = NULL;
3701         GSList *it;
3702
3703         for (it = self->parents; it; it = g_slist_next(it)) {
3704             ObClient *c = it->data;
3705             if ((parent = client_icon_recursive(c, w, h)))
3706                 break;
3707         }
3708
3709         return parent;
3710     }
3711
3712     /* some kind of crappy approximation to find the icon closest in size to
3713        what we requested, but icons are generally all the same ratio as
3714        eachother so it's good enough. */
3715
3716     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3717     min_i = 0;
3718
3719     for (i = 1; i < self->nicons; ++i) {
3720         gulong diff;
3721
3722         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3723         if (diff < min_diff) {
3724             min_diff = diff;
3725             min_i = i;
3726         }
3727     }
3728     return &self->icons[min_i];
3729 }
3730
3731 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3732 {
3733     ObClientIcon *ret;
3734     static ObClientIcon deficon;
3735
3736     if (!(ret = client_icon_recursive(self, w, h))) {
3737         deficon.width = deficon.height = 48;
3738         deficon.data = ob_rr_theme->def_win_icon;
3739         ret = &deficon;
3740     }
3741     return ret;
3742 }
3743
3744 void client_set_layer(ObClient *self, gint layer)
3745 {
3746     if (layer < 0) {
3747         self->below = TRUE;
3748         self->above = FALSE;
3749     } else if (layer == 0) {
3750         self->below = self->above = FALSE;
3751     } else {
3752         self->below = FALSE;
3753         self->above = TRUE;
3754     }
3755     client_calc_layer(self);
3756     client_change_state(self); /* reflect this in the state hints */
3757 }
3758
3759 void client_set_undecorated(ObClient *self, gboolean undecorated)
3760 {
3761     if (self->undecorated != undecorated &&
3762         /* don't let it undecorate if the function is missing, but let
3763            it redecorate */
3764         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3765     {
3766         self->undecorated = undecorated;
3767         client_setup_decor_and_functions(self, TRUE);
3768         client_change_state(self); /* reflect this in the state hints */
3769     }
3770 }
3771
3772 guint client_monitor(ObClient *self)
3773 {
3774     return screen_find_monitor(&self->frame->area);
3775 }
3776
3777 ObClient *client_direct_parent(ObClient *self)
3778 {
3779     if (!self->parents) return NULL;
3780     if (self->transient_for_group) return NULL;
3781     return self->parents->data;
3782 }
3783
3784 ObClient *client_search_top_direct_parent(ObClient *self)
3785 {
3786     ObClient *p;
3787     while ((p = client_direct_parent(self))) self = p;
3788     return self;
3789 }
3790
3791 static GSList *client_search_all_top_parents_internal(ObClient *self,
3792                                                       gboolean bylayer,
3793                                                       ObStackingLayer layer)
3794 {
3795     GSList *ret;
3796     ObClient *p;
3797
3798     /* move up the direct transient chain as far as possible */
3799     while ((p = client_direct_parent(self)) &&
3800            (!bylayer || p->layer == layer))
3801         self = p;
3802
3803     if (!self->parents)
3804         ret = g_slist_prepend(NULL, self);
3805     else
3806         ret = g_slist_copy(self->parents);
3807
3808     return ret;
3809 }
3810
3811 GSList *client_search_all_top_parents(ObClient *self)
3812 {
3813     return client_search_all_top_parents_internal(self, FALSE, 0);
3814 }
3815
3816 GSList *client_search_all_top_parents_layer(ObClient *self)
3817 {
3818     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3819 }
3820
3821 ObClient *client_search_focus_parent(ObClient *self)
3822 {
3823     GSList *it;
3824
3825     for (it = self->parents; it; it = g_slist_next(it))
3826         if (client_focused(it->data)) return it->data;
3827
3828     return NULL;
3829 }
3830
3831 ObClient *client_search_parent(ObClient *self, ObClient *search)
3832 {
3833     GSList *it;
3834
3835     for (it = self->parents; it; it = g_slist_next(it))
3836         if (it->data == search) return search;
3837
3838     return NULL;
3839 }
3840
3841 ObClient *client_search_transient(ObClient *self, ObClient *search)
3842 {
3843     GSList *sit;
3844
3845     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3846         if (sit->data == search)
3847             return search;
3848         if (client_search_transient(sit->data, search))
3849             return search;
3850     }
3851     return NULL;
3852 }
3853
3854 #define WANT_EDGE(cur, c) \
3855             if (cur == c)                                                     \
3856                 continue;                                                     \
3857             if (c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&  \
3858                 cur->desktop != screen_desktop)                               \
3859                 continue;                                                     \
3860             if (cur->iconic)                                                  \
3861                 continue;
3862
3863 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3864             if ((his_edge_start >= my_edge_start && \
3865                  his_edge_start <= my_edge_end) ||  \
3866                 (my_edge_start >= his_edge_start && \
3867                  my_edge_start <= his_edge_end))    \
3868                 dest = his_offset;
3869
3870 /* finds the nearest edge in the given direction from the current client
3871  * note to self: the edge is the -frame- edge (the actual one), not the
3872  * client edge.
3873  */
3874 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3875 {
3876     gint dest, monitor_dest;
3877     gint my_edge_start, my_edge_end, my_offset;
3878     GList *it;
3879     Rect *a, *monitor;
3880
3881     if(!client_list)
3882         return -1;
3883
3884     a = screen_area(c->desktop, &c->frame->area);
3885     monitor = screen_area_monitor(c->desktop, client_monitor(c),
3886                                   &c->frame->area);
3887
3888     switch(dir) {
3889     case OB_DIRECTION_NORTH:
3890         my_edge_start = c->frame->area.x;
3891         my_edge_end = c->frame->area.x + c->frame->area.width;
3892         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3893
3894         /* default: top of screen */
3895         dest = a->y + (hang ? c->frame->area.height : 0);
3896         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3897         /* if the monitor edge comes before the screen edge, */
3898         /* use that as the destination instead. (For xinerama) */
3899         if (monitor_dest != dest && my_offset > monitor_dest)
3900             dest = monitor_dest;
3901
3902         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3903             gint his_edge_start, his_edge_end, his_offset;
3904             ObClient *cur = it->data;
3905
3906             WANT_EDGE(cur, c)
3907
3908             his_edge_start = cur->frame->area.x;
3909             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3910             his_offset = cur->frame->area.y +
3911                          (hang ? 0 : cur->frame->area.height);
3912
3913             if(his_offset + 1 > my_offset)
3914                 continue;
3915
3916             if(his_offset < dest)
3917                 continue;
3918
3919             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3920         }
3921         break;
3922     case OB_DIRECTION_SOUTH:
3923         my_edge_start = c->frame->area.x;
3924         my_edge_end = c->frame->area.x + c->frame->area.width;
3925         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3926
3927         /* default: bottom of screen */
3928         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3929         monitor_dest = monitor->y + monitor->height -
3930                        (hang ? c->frame->area.height : 0);
3931         /* if the monitor edge comes before the screen edge, */
3932         /* use that as the destination instead. (For xinerama) */
3933         if (monitor_dest != dest && my_offset < monitor_dest)
3934             dest = monitor_dest;
3935
3936         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3937             gint his_edge_start, his_edge_end, his_offset;
3938             ObClient *cur = it->data;
3939
3940             WANT_EDGE(cur, c)
3941
3942             his_edge_start = cur->frame->area.x;
3943             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3944             his_offset = cur->frame->area.y +
3945                          (hang ? cur->frame->area.height : 0);
3946
3947
3948             if(his_offset - 1 < my_offset)
3949                 continue;
3950
3951             if(his_offset > dest)
3952                 continue;
3953
3954             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3955         }
3956         break;
3957     case OB_DIRECTION_WEST:
3958         my_edge_start = c->frame->area.y;
3959         my_edge_end = c->frame->area.y + c->frame->area.height;
3960         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3961
3962         /* default: leftmost egde of screen */
3963         dest = a->x + (hang ? c->frame->area.width : 0);
3964         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3965         /* if the monitor edge comes before the screen edge, */
3966         /* use that as the destination instead. (For xinerama) */
3967         if (monitor_dest != dest && my_offset > monitor_dest)
3968             dest = monitor_dest;
3969
3970         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3971             gint his_edge_start, his_edge_end, his_offset;
3972             ObClient *cur = it->data;
3973
3974             WANT_EDGE(cur, c)
3975
3976             his_edge_start = cur->frame->area.y;
3977             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3978             his_offset = cur->frame->area.x +
3979                          (hang ? 0 : cur->frame->area.width);
3980
3981             if(his_offset + 1 > my_offset)
3982                 continue;
3983
3984             if(his_offset < dest)
3985                 continue;
3986
3987             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3988         }
3989        break;
3990     case OB_DIRECTION_EAST:
3991         my_edge_start = c->frame->area.y;
3992         my_edge_end = c->frame->area.y + c->frame->area.height;
3993         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3994
3995         /* default: rightmost edge of screen */
3996         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3997         monitor_dest = monitor->x + monitor->width -
3998                        (hang ? c->frame->area.width : 0);
3999         /* if the monitor edge comes before the screen edge, */
4000         /* use that as the destination instead. (For xinerama) */
4001         if (monitor_dest != dest && my_offset < monitor_dest)
4002             dest = monitor_dest;
4003
4004         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
4005             gint his_edge_start, his_edge_end, his_offset;
4006             ObClient *cur = it->data;
4007
4008             WANT_EDGE(cur, c)
4009
4010             his_edge_start = cur->frame->area.y;
4011             his_edge_end = cur->frame->area.y + cur->frame->area.height;
4012             his_offset = cur->frame->area.x +
4013                          (hang ? cur->frame->area.width : 0);
4014
4015             if(his_offset - 1 < my_offset)
4016                 continue;
4017
4018             if(his_offset > dest)
4019                 continue;
4020
4021             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4022         }
4023         break;
4024     case OB_DIRECTION_NORTHEAST:
4025     case OB_DIRECTION_SOUTHEAST:
4026     case OB_DIRECTION_NORTHWEST:
4027     case OB_DIRECTION_SOUTHWEST:
4028         /* not implemented */
4029     default:
4030         g_assert_not_reached();
4031         dest = 0; /* suppress warning */
4032     }
4033
4034     g_free(a);
4035     g_free(monitor);
4036     return dest;
4037 }
4038
4039 ObClient* client_under_pointer()
4040 {
4041     gint x, y;
4042     GList *it;
4043     ObClient *ret = NULL;
4044
4045     if (screen_pointer_pos(&x, &y)) {
4046         for (it = stacking_list; it; it = g_list_next(it)) {
4047             if (WINDOW_IS_CLIENT(it->data)) {
4048                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4049                 if (c->frame->visible &&
4050                     /* check the desktop, this is done during desktop
4051                        switching and windows are shown/hidden status is not
4052                        reliable */
4053                     (c->desktop == screen_desktop ||
4054                      c->desktop == DESKTOP_ALL) &&
4055                     /* ignore all animating windows */
4056                     !frame_iconify_animating(c->frame) &&
4057                     RECT_CONTAINS(c->frame->area, x, y))
4058                 {
4059                     ret = c;
4060                     break;
4061                 }
4062             }
4063         }
4064     }
4065     return ret;
4066 }
4067
4068 gboolean client_has_group_siblings(ObClient *self)
4069 {
4070     return self->group && self->group->members->next;
4071 }