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             const 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         }
1997         g_free(data);
1998     }
1999
2000     if (!got)
2001         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2002                           0, 0, 0, 0, 0, 0, 0, 0);
2003
2004     if (!STRUT_EQUAL(strut, self->strut)) {
2005         self->strut = strut;
2006
2007         /* updating here is pointless while we're being mapped cuz we're not in
2008            the client list yet */
2009         if (self->frame)
2010             screen_update_areas();
2011     }
2012 }
2013
2014 void client_update_icons(ObClient *self)
2015 {
2016     guint num;
2017     guint32 *data;
2018     guint w, h, i, j;
2019
2020     for (i = 0; i < self->nicons; ++i)
2021         g_free(self->icons[i].data);
2022     if (self->nicons > 0)
2023         g_free(self->icons);
2024     self->nicons = 0;
2025
2026     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2027         /* figure out how many valid icons are in here */
2028         i = 0;
2029         while (num - i > 2) {
2030             w = data[i++];
2031             h = data[i++];
2032             i += w * h;
2033             if (i > num || w*h == 0) break;
2034             ++self->nicons;
2035         }
2036
2037         self->icons = g_new(ObClientIcon, self->nicons);
2038
2039         /* store the icons */
2040         i = 0;
2041         for (j = 0; j < self->nicons; ++j) {
2042             guint x, y, t;
2043
2044             w = self->icons[j].width = data[i++];
2045             h = self->icons[j].height = data[i++];
2046
2047             if (w*h == 0) continue;
2048
2049             self->icons[j].data = g_new(RrPixel32, w * h);
2050             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2051                 if (x >= w) {
2052                     x = 0;
2053                     ++y;
2054                 }
2055                 self->icons[j].data[t] =
2056                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2057                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2058                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2059                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2060             }
2061             g_assert(i <= num);
2062         }
2063
2064         g_free(data);
2065     } else {
2066         XWMHints *hints;
2067
2068         if ((hints = XGetWMHints(ob_display, self->window))) {
2069             if (hints->flags & IconPixmapHint) {
2070                 self->nicons = 1;
2071                 self->icons = g_new(ObClientIcon, self->nicons);
2072                 xerror_set_ignore(TRUE);
2073                 if (!RrPixmapToRGBA(ob_rr_inst,
2074                                     hints->icon_pixmap,
2075                                     (hints->flags & IconMaskHint ?
2076                                      hints->icon_mask : None),
2077                                     &self->icons[0].width,
2078                                     &self->icons[0].height,
2079                                     &self->icons[0].data))
2080                 {
2081                     g_free(self->icons);
2082                     self->nicons = 0;
2083                 }
2084                 xerror_set_ignore(FALSE);
2085             }
2086             XFree(hints);
2087         }
2088     }
2089
2090     /* set the default icon onto the window
2091        in theory, this could be a race, but if a window doesn't set an icon
2092        or removes it entirely, it's not very likely it is going to set one
2093        right away afterwards */
2094     if (self->nicons == 0) {
2095         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2096         gulong *data;
2097
2098         data = g_new(gulong, 48*48+2);
2099         data[0] = data[1] =  48;
2100         for (i = 0; i < 48*48; ++i)
2101             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2102                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2103                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2104                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2105         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2106         g_free(data);
2107     } else if (self->frame)
2108         /* don't draw the icon empty if we're just setting one now anyways,
2109            we'll get the property change any second */
2110         frame_adjust_icon(self->frame);
2111 }
2112
2113 void client_update_user_time(ObClient *self)
2114 {
2115     guint32 time;
2116     gboolean got = FALSE;
2117
2118     if (self->user_time_window)
2119         got = PROP_GET32(self->user_time_window,
2120                          net_wm_user_time, cardinal, &time);
2121     if (!got)
2122         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2123
2124     if (got) {
2125         /* we set this every time, not just when it grows, because in practice
2126            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2127            backward we don't want all windows to stop focusing. we'll just
2128            assume noone is setting times older than the last one, cuz that
2129            would be pretty stupid anyways
2130         */
2131         self->user_time = time;
2132
2133         /*ob_debug("window %s user time %u\n", self->title, time);*/
2134     }
2135 }
2136
2137 void client_update_user_time_window(ObClient *self)
2138 {
2139     guint32 w;
2140
2141     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2142         w = None;
2143
2144     if (w != self->user_time_window) {
2145         /* remove the old window */
2146         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2147         self->user_time_window = None;
2148
2149         if (self->group && self->group->leader == w) {
2150             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2151                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2152             /* do it anyways..? */
2153         }
2154         else if (w == self->window) {
2155             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2156                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2157             w = None; /* don't do it */
2158         }
2159
2160         /* add the new window */
2161         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2162         self->user_time_window = w;
2163
2164         /* and update from it */
2165         client_update_user_time(self);
2166     }
2167 }
2168
2169 void client_update_icon_geometry(ObClient *self)
2170 {
2171     guint num;
2172     guint32 *data;
2173
2174     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2175
2176     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2177         && num == 4)
2178     {
2179         /* don't let them set it with an area < 0 */
2180         RECT_SET(self->icon_geometry, data[0], data[1],
2181                  MAX(data[2],0), MAX(data[3],0));
2182     }
2183 }
2184
2185 static void client_get_session_ids(ObClient *self)
2186 {
2187     guint32 leader;
2188     gboolean got;
2189     gchar *s;
2190     gchar **ss;
2191
2192     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2193         leader = None;
2194
2195     /* get the SM_CLIENT_ID */
2196     got = FALSE;
2197     if (leader)
2198         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2199     if (!got)
2200         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2201
2202     /* get the WM_CLASS (name and class). make them "" if they are not
2203        provided */
2204     got = FALSE;
2205     if (leader)
2206         got = PROP_GETSS(leader, wm_class, locale, &ss);
2207     if (!got)
2208         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2209
2210     if (got) {
2211         if (ss[0]) {
2212             self->name = g_strdup(ss[0]);
2213             if (ss[1])
2214                 self->class = g_strdup(ss[1]);
2215         }
2216         g_strfreev(ss);
2217     }
2218
2219     if (self->name == NULL) self->name = g_strdup("");
2220     if (self->class == NULL) self->class = g_strdup("");
2221
2222     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2223     got = FALSE;
2224     if (leader)
2225         got = PROP_GETS(leader, wm_window_role, locale, &s);
2226     if (!got)
2227         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2228
2229     if (got)
2230         self->role = s;
2231     else
2232         self->role = g_strdup("");
2233
2234     /* get the WM_COMMAND */
2235     got = FALSE;
2236
2237     if (leader)
2238         got = PROP_GETSS(leader, wm_command, locale, &ss);
2239     if (!got)
2240         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2241
2242     if (got) {
2243         /* merge/mash them all together */
2244         gchar *merge = NULL;
2245         gint i;
2246
2247         for (i = 0; ss[i]; ++i) {
2248             gchar *tmp = merge;
2249             if (merge)
2250                 merge = g_strconcat(merge, ss[i], NULL);
2251             else
2252                 merge = g_strconcat(ss[i], NULL);
2253             g_free(tmp);
2254         }
2255         g_strfreev(ss);
2256
2257         self->wm_command = merge;
2258     }
2259
2260     /* get the WM_CLIENT_MACHINE */
2261     got = FALSE;
2262     if (leader)
2263         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2264     if (!got)
2265         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2266
2267     if (got) {
2268         gchar localhost[128];
2269
2270         gethostname(localhost, 127);
2271         localhost[127] = '\0';
2272         if (strcmp(localhost, s) != 0)
2273             self->client_machine = s;
2274         else
2275             g_free(s);
2276     }
2277 }
2278
2279 static void client_change_wm_state(ObClient *self)
2280 {
2281     gulong state[2];
2282     glong old;
2283
2284     old = self->wmstate;
2285
2286     if (self->shaded || self->iconic ||
2287         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2288     {
2289         self->wmstate = IconicState;
2290     } else
2291         self->wmstate = NormalState;
2292
2293     if (old != self->wmstate) {
2294         PROP_MSG(self->window, kde_wm_change_state,
2295                  self->wmstate, 1, 0, 0);
2296
2297         state[0] = self->wmstate;
2298         state[1] = None;
2299         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2300     }
2301 }
2302
2303 static void client_change_state(ObClient *self)
2304 {
2305     gulong netstate[12];
2306     guint num;
2307
2308     num = 0;
2309     if (self->modal)
2310         netstate[num++] = prop_atoms.net_wm_state_modal;
2311     if (self->shaded)
2312         netstate[num++] = prop_atoms.net_wm_state_shaded;
2313     if (self->iconic)
2314         netstate[num++] = prop_atoms.net_wm_state_hidden;
2315     if (self->skip_taskbar)
2316         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2317     if (self->skip_pager)
2318         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2319     if (self->fullscreen)
2320         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2321     if (self->max_vert)
2322         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2323     if (self->max_horz)
2324         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2325     if (self->above)
2326         netstate[num++] = prop_atoms.net_wm_state_above;
2327     if (self->below)
2328         netstate[num++] = prop_atoms.net_wm_state_below;
2329     if (self->demands_attention)
2330         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2331     if (self->undecorated)
2332         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2333     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2334
2335     if (self->frame)
2336         frame_adjust_state(self->frame);
2337 }
2338
2339 ObClient *client_search_focus_tree(ObClient *self)
2340 {
2341     GSList *it;
2342     ObClient *ret;
2343
2344     for (it = self->transients; it; it = g_slist_next(it)) {
2345         if (client_focused(it->data)) return it->data;
2346         if ((ret = client_search_focus_tree(it->data))) return ret;
2347     }
2348     return NULL;
2349 }
2350
2351 ObClient *client_search_focus_tree_full(ObClient *self)
2352 {
2353     if (self->parents) {
2354         GSList *it;
2355
2356         for (it = self->parents; it; it = g_slist_next(it)) {
2357             ObClient *c = it->data;
2358             if ((c = client_search_focus_tree_full(it->data))) return c;
2359         }
2360
2361         return NULL;
2362     }
2363     else {
2364         /* this function checks the whole tree, the client_search_focus_tree
2365            does not, so we need to check this window */
2366         if (client_focused(self))
2367             return self;
2368         return client_search_focus_tree(self);
2369     }
2370 }
2371
2372 ObClient *client_search_focus_group_full(ObClient *self)
2373 {
2374     GSList *it;
2375
2376     if (self->group) {
2377         for (it = self->group->members; it; it = g_slist_next(it)) {
2378             ObClient *c = it->data;
2379
2380             if (client_focused(c)) return c;
2381             if ((c = client_search_focus_tree(it->data))) return c;
2382         }
2383     } else
2384         if (client_focused(self)) return self;
2385     return NULL;
2386 }
2387
2388 gboolean client_has_parent(ObClient *self)
2389 {
2390     return self->parents != NULL;
2391 }
2392
2393 static ObStackingLayer calc_layer(ObClient *self)
2394 {
2395     ObStackingLayer l;
2396
2397     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2398         l = OB_STACKING_LAYER_DESKTOP;
2399     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2400         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2401         else l = OB_STACKING_LAYER_ABOVE;
2402     }
2403     else if ((self->fullscreen ||
2404               /* No decorations and fills the monitor = oldskool fullscreen.
2405                  But not for maximized windows.
2406               */
2407               (self->decorations == 0 &&
2408                !(self->max_horz && self->max_vert) &&
2409                RECT_EQUAL(self->area,
2410                           *screen_physical_area_monitor
2411                           (client_monitor(self))))) &&
2412              (client_focused(self) || client_search_focus_tree(self)))
2413         l = OB_STACKING_LAYER_FULLSCREEN;
2414     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2415     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2416     else l = OB_STACKING_LAYER_NORMAL;
2417
2418     return l;
2419 }
2420
2421 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2422                                         ObStackingLayer min)
2423 {
2424     ObStackingLayer old, own;
2425     GSList *it;
2426
2427     old = self->layer;
2428     own = calc_layer(self);
2429     self->layer = MAX(own, min);
2430
2431     if (self->layer != old) {
2432         stacking_remove(CLIENT_AS_WINDOW(self));
2433         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2434     }
2435
2436     for (it = self->transients; it; it = g_slist_next(it))
2437         client_calc_layer_recursive(it->data, orig,
2438                                     self->layer);
2439 }
2440
2441 void client_calc_layer(ObClient *self)
2442 {
2443     ObClient *orig;
2444     GSList *it;
2445
2446     orig = self;
2447
2448     /* transients take on the layer of their parents */
2449     it = client_search_all_top_parents(self);
2450
2451     for (; it; it = g_slist_next(it))
2452         client_calc_layer_recursive(it->data, orig, 0);
2453 }
2454
2455 gboolean client_should_show(ObClient *self)
2456 {
2457     if (self->iconic)
2458         return FALSE;
2459     if (client_normal(self) && screen_showing_desktop)
2460         return FALSE;
2461     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2462         return TRUE;
2463
2464     return FALSE;
2465 }
2466
2467 gboolean client_show(ObClient *self)
2468 {
2469     gboolean show = FALSE;
2470
2471     if (client_should_show(self)) {
2472         frame_show(self->frame);
2473         show = TRUE;
2474
2475         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2476            it needs to be in IconicState. This includes when it is on another
2477            desktop!
2478         */
2479         client_change_wm_state(self);
2480     }
2481     return show;
2482 }
2483
2484 gboolean client_hide(ObClient *self)
2485 {
2486     gboolean hide = FALSE;
2487
2488     if (!client_should_show(self)) {
2489         if (self == focus_client) {
2490             /* if there is a grab going on, then we need to cancel it. if we
2491                move focus during the grab, applications will get
2492                NotifyWhileGrabbed events and ignore them !
2493
2494                actions should not rely on being able to move focus during an
2495                interactive grab.
2496             */
2497             event_cancel_all_key_grabs();
2498         }
2499
2500         /* We don't need to ignore enter events here.
2501            The window can hide/iconify in 3 different ways:
2502            1 - through an x message. in this case we ignore all enter events
2503                caused by responding to the x message (unless underMouse)
2504            2 - by a keyboard action. in this case we ignore all enter events
2505                caused by the action
2506            3 - by a mouse action. in this case they are doing stuff with the
2507                mouse and focus _should_ move.
2508
2509            Also in action_end, we simulate an enter event that can't be ignored
2510            so trying to ignore them is futile in case 3 anyways
2511         */
2512
2513         frame_hide(self->frame);
2514         hide = TRUE;
2515
2516         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2517            it needs to be in IconicState. This includes when it is on another
2518            desktop!
2519         */
2520         client_change_wm_state(self);
2521     }
2522     return hide;
2523 }
2524
2525 void client_showhide(ObClient *self)
2526 {
2527     if (!client_show(self))
2528         client_hide(self);
2529 }
2530
2531 gboolean client_normal(ObClient *self) {
2532     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2533               self->type == OB_CLIENT_TYPE_DOCK ||
2534               self->type == OB_CLIENT_TYPE_SPLASH);
2535 }
2536
2537 gboolean client_helper(ObClient *self)
2538 {
2539     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2540             self->type == OB_CLIENT_TYPE_MENU ||
2541             self->type == OB_CLIENT_TYPE_TOOLBAR);
2542 }
2543
2544 gboolean client_mouse_focusable(ObClient *self)
2545 {
2546     return !(self->type == OB_CLIENT_TYPE_MENU ||
2547              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2548              self->type == OB_CLIENT_TYPE_SPLASH ||
2549              self->type == OB_CLIENT_TYPE_DOCK);
2550 }
2551
2552 gboolean client_enter_focusable(ObClient *self)
2553 {
2554     /* you can focus desktops but it shouldn't on enter */
2555     return (client_mouse_focusable(self) &&
2556             self->type != OB_CLIENT_TYPE_DESKTOP);
2557 }
2558
2559
2560 static void client_apply_startup_state(ObClient *self,
2561                                        gint x, gint y, gint w, gint h)
2562 {
2563     /* save the states that we are going to apply */
2564     gboolean iconic = self->iconic;
2565     gboolean fullscreen = self->fullscreen;
2566     gboolean undecorated = self->undecorated;
2567     gboolean shaded = self->shaded;
2568     gboolean demands_attention = self->demands_attention;
2569     gboolean max_horz = self->max_horz;
2570     gboolean max_vert = self->max_vert;
2571     Rect oldarea;
2572     gint l;
2573
2574     /* turn them all off in the client, so they won't affect the window
2575        being placed */
2576     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2577         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2578
2579     /* move the client to its placed position, or it it's already there,
2580        generate a ConfigureNotify telling the client where it is.
2581
2582        do this after adjusting the frame. otherwise it gets all weird and
2583        clients don't work right
2584
2585        do this before applying the states so they have the correct
2586        pre-max/pre-fullscreen values
2587     */
2588     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2589     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2590              self->window, x, y, w, h);
2591     /* save the area, and make it where it should be for the premax stuff */
2592     oldarea = self->area;
2593     RECT_SET(self->area, x, y, w, h);
2594
2595     /* apply the states. these are in a carefully crafted order.. */
2596
2597     if (iconic)
2598         client_iconify(self, TRUE, FALSE, TRUE);
2599     if (fullscreen)
2600         client_fullscreen(self, TRUE);
2601     if (undecorated)
2602         client_set_undecorated(self, TRUE);
2603     if (shaded)
2604         client_shade(self, TRUE);
2605     if (demands_attention)
2606         client_hilite(self, TRUE);
2607
2608     if (max_vert && max_horz)
2609         client_maximize(self, TRUE, 0);
2610     else if (max_vert)
2611         client_maximize(self, TRUE, 2);
2612     else if (max_horz)
2613         client_maximize(self, TRUE, 1);
2614
2615     /* if the window hasn't been configured yet, then do so now */
2616     if (!fullscreen && !max_vert && !max_horz) {
2617         self->area = oldarea;
2618         client_configure(self, x, y, w, h, FALSE, TRUE);
2619     }
2620
2621     /* set the desktop hint, to make sure that it always exists */
2622     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2623
2624     /* nothing to do for the other states:
2625        skip_taskbar
2626        skip_pager
2627        modal
2628        above
2629        below
2630     */
2631 }
2632
2633 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2634 {
2635     /* these should be the current values. this is for when you're not moving,
2636        just resizing */
2637     g_assert(*x == self->area.x);
2638     g_assert(oldw == self->area.width);
2639
2640     /* horizontal */
2641     switch (self->gravity) {
2642     default:
2643     case NorthWestGravity:
2644     case WestGravity:
2645     case SouthWestGravity:
2646     case StaticGravity:
2647     case ForgetGravity:
2648         break;
2649     case NorthGravity:
2650     case CenterGravity:
2651     case SouthGravity:
2652         *x -= (neww - oldw) / 2;
2653         break;
2654     case NorthEastGravity:
2655     case EastGravity:
2656     case SouthEastGravity:
2657         *x -= neww - oldw;
2658         break;
2659     }
2660 }
2661
2662 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2663 {
2664     /* these should be the current values. this is for when you're not moving,
2665        just resizing */
2666     g_assert(*y == self->area.y);
2667     g_assert(oldh == self->area.height);
2668
2669     /* vertical */
2670     switch (self->gravity) {
2671     default:
2672     case NorthWestGravity:
2673     case NorthGravity:
2674     case NorthEastGravity:
2675     case StaticGravity:
2676     case ForgetGravity:
2677         break;
2678     case WestGravity:
2679     case CenterGravity:
2680     case EastGravity:
2681         *y -= (newh - oldh) / 2;
2682         break;
2683     case SouthWestGravity:
2684     case SouthGravity:
2685     case SouthEastGravity:
2686         *y -= newh - oldh;
2687         break;
2688     }
2689 }
2690
2691 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2692                           gint *logicalw, gint *logicalh,
2693                           gboolean user)
2694 {
2695     Rect desired = {*x, *y, *w, *h};
2696     frame_rect_to_frame(self->frame, &desired);
2697
2698     /* make the frame recalculate its dimentions n shit without changing
2699        anything visible for real, this way the constraints below can work with
2700        the updated frame dimensions. */
2701     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2702
2703     /* gets the frame's position */
2704     frame_client_gravity(self->frame, x, y, *w, *h);
2705
2706     /* these positions are frame positions, not client positions */
2707
2708     /* set the size and position if fullscreen */
2709     if (self->fullscreen) {
2710         Rect *a;
2711         guint i;
2712
2713         i = screen_find_monitor(&desired);
2714         a = screen_physical_area_monitor(i);
2715
2716         *x = a->x;
2717         *y = a->y;
2718         *w = a->width;
2719         *h = a->height;
2720
2721         user = FALSE; /* ignore if the client can't be moved/resized when it
2722                          is fullscreening */
2723     } else if (self->max_horz || self->max_vert) {
2724         Rect *a;
2725         guint i;
2726
2727         i = screen_find_monitor(&desired);
2728         a = screen_area_monitor(self->desktop, i, &desired);
2729
2730         /* set the size and position if maximized */
2731         if (self->max_horz) {
2732             *x = a->x;
2733             *w = a->width - self->frame->size.left - self->frame->size.right;
2734         }
2735         if (self->max_vert) {
2736             *y = a->y;
2737             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2738         }
2739
2740         user = FALSE; /* ignore if the client can't be moved/resized when it
2741                          is maximizing */
2742
2743         g_free(a);
2744     }
2745
2746     /* gets the client's position */
2747     frame_frame_gravity(self->frame, x, y, *w, *h);
2748
2749     /* work within the prefered sizes given by the window */
2750     if (!(*w == self->area.width && *h == self->area.height)) {
2751         gint basew, baseh, minw, minh;
2752         gint incw, inch;
2753         gfloat minratio, maxratio;
2754
2755         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2756         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2757         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2758             0 : self->min_ratio;
2759         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2760             0 : self->max_ratio;
2761
2762         /* base size is substituted with min size if not specified */
2763         if (self->base_size.width || self->base_size.height) {
2764             basew = self->base_size.width;
2765             baseh = self->base_size.height;
2766         } else {
2767             basew = self->min_size.width;
2768             baseh = self->min_size.height;
2769         }
2770         /* min size is substituted with base size if not specified */
2771         if (self->min_size.width || self->min_size.height) {
2772             minw = self->min_size.width;
2773             minh = self->min_size.height;
2774         } else {
2775             minw = self->base_size.width;
2776             minh = self->base_size.height;
2777         }
2778
2779         /* if this is a user-requested resize, then check against min/max
2780            sizes */
2781
2782         /* smaller than min size or bigger than max size? */
2783         if (*w > self->max_size.width) *w = self->max_size.width;
2784         if (*w < minw) *w = minw;
2785         if (*h > self->max_size.height) *h = self->max_size.height;
2786         if (*h < minh) *h = minh;
2787
2788         *w -= basew;
2789         *h -= baseh;
2790
2791         /* keep to the increments */
2792         *w /= incw;
2793         *h /= inch;
2794
2795         /* you cannot resize to nothing */
2796         if (basew + *w < 1) *w = 1 - basew;
2797         if (baseh + *h < 1) *h = 1 - baseh;
2798
2799         /* save the logical size */
2800         *logicalw = incw > 1 ? *w : *w + basew;
2801         *logicalh = inch > 1 ? *h : *h + baseh;
2802
2803         *w *= incw;
2804         *h *= inch;
2805
2806         *w += basew;
2807         *h += baseh;
2808
2809         /* adjust the height to match the width for the aspect ratios.
2810            for this, min size is not substituted for base size ever. */
2811         *w -= self->base_size.width;
2812         *h -= self->base_size.height;
2813
2814         if (minratio)
2815             if (*h * minratio > *w) {
2816                 *h = (gint)(*w / minratio);
2817
2818                 /* you cannot resize to nothing */
2819                 if (*h < 1) {
2820                     *h = 1;
2821                     *w = (gint)(*h * minratio);
2822                 }
2823             }
2824         if (maxratio)
2825             if (*h * maxratio < *w) {
2826                 *h = (gint)(*w / maxratio);
2827
2828                 /* you cannot resize to nothing */
2829                 if (*h < 1) {
2830                     *h = 1;
2831                     *w = (gint)(*h * minratio);
2832                 }
2833             }
2834
2835         *w += self->base_size.width;
2836         *h += self->base_size.height;
2837     }
2838
2839     /* these override the above states! if you cant move you can't move! */
2840     if (user) {
2841         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2842             *x = self->area.x;
2843             *y = self->area.y;
2844         }
2845         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2846             *w = self->area.width;
2847             *h = self->area.height;
2848         }
2849     }
2850
2851     g_assert(*w > 0);
2852     g_assert(*h > 0);
2853 }
2854
2855
2856 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2857                       gboolean user, gboolean final)
2858 {
2859     gint oldw, oldh;
2860     gboolean send_resize_client;
2861     gboolean moved = FALSE, resized = FALSE;
2862     gboolean fmoved, fresized;
2863     guint fdecor = self->frame->decorations;
2864     gboolean fhorz = self->frame->max_horz;
2865     gboolean fvert = self->frame->max_vert;
2866     gint logicalw, logicalh;
2867
2868     /* find the new x, y, width, and height (and logical size) */
2869     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2870
2871     /* set the logical size if things changed */
2872     if (!(w == self->area.width && h == self->area.height))
2873         SIZE_SET(self->logical_size, logicalw, logicalh);
2874
2875     /* figure out if we moved or resized or what */
2876     moved = (x != self->area.x || y != self->area.y);
2877     resized = (w != self->area.width || h != self->area.height);
2878
2879     oldw = self->area.width;
2880     oldh = self->area.height;
2881     RECT_SET(self->area, x, y, w, h);
2882
2883     /* for app-requested resizes, always resize if 'resized' is true.
2884        for user-requested ones, only resize if final is true, or when
2885        resizing in redraw mode */
2886     send_resize_client = ((!user && resized) ||
2887                           (user && (final ||
2888                                     (resized && config_resize_redraw))));
2889
2890     /* if the client is enlarging, then resize the client before the frame */
2891     if (send_resize_client && (w > oldw || h > oldh)) {
2892         XMoveResizeWindow(ob_display, self->window,
2893                           self->frame->size.left, self->frame->size.top,
2894                           MAX(w, oldw), MAX(h, oldh));
2895         frame_adjust_client_area(self->frame);
2896     }
2897
2898     /* find the frame's dimensions and move/resize it */
2899     fmoved = moved;
2900     fresized = resized;
2901
2902     /* if decorations changed, then readjust everything for the frame */
2903     if (self->decorations != fdecor ||
2904         self->max_horz != fhorz || self->max_vert != fvert)
2905     {
2906         fmoved = fresized = TRUE;
2907     }
2908
2909     /* adjust the frame */
2910     if (fmoved || fresized)
2911         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2912
2913     /* This is kinda tricky and should not be changed.. let me explain!
2914
2915        When user = FALSE, then the request is coming from the application
2916        itself, and we are more strict about when to send a synthetic
2917        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
2918        in this case.
2919
2920        When user = TRUE, then the request is coming from "us", like when we
2921        maximize a window or sometihng.  In this case we are more lenient.  We
2922        used to follow the same rules as above, but _Java_ Swing can't handle
2923        this. So just to appease Swing, when user = TRUE, we always send
2924        a synthetic ConfigureNotify to give the window its root coordinates.
2925     */
2926     if ((!user && !resized) || (user && final))
2927     {
2928         XEvent event;
2929
2930         /* we have reset the client to 0 border width, so don't include
2931            it in these coords */
2932         POINT_SET(self->root_pos,
2933                   self->frame->area.x + self->frame->size.left -
2934                   self->border_width,
2935                   self->frame->area.y + self->frame->size.top -
2936                   self->border_width);
2937
2938         event.type = ConfigureNotify;
2939         event.xconfigure.display = ob_display;
2940         event.xconfigure.event = self->window;
2941         event.xconfigure.window = self->window;
2942
2943         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2944                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2945
2946         /* root window real coords */
2947         event.xconfigure.x = self->root_pos.x;
2948         event.xconfigure.y = self->root_pos.y;
2949         event.xconfigure.width = w;
2950         event.xconfigure.height = h;
2951         event.xconfigure.border_width = self->border_width;
2952         event.xconfigure.above = None;
2953         event.xconfigure.override_redirect = FALSE;
2954         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2955                    FALSE, StructureNotifyMask, &event);
2956     }
2957
2958     /* if the client is shrinking, then resize the frame before the client.
2959
2960        both of these resize sections may run, because the top one only resizes
2961        in the direction that is growing
2962      */
2963     if (send_resize_client && (w <= oldw || h <= oldh)) {
2964         frame_adjust_client_area(self->frame);
2965         XMoveResizeWindow(ob_display, self->window,
2966                           self->frame->size.left, self->frame->size.top, w, h);
2967     }
2968
2969     XFlush(ob_display);
2970 }
2971
2972 void client_fullscreen(ObClient *self, gboolean fs)
2973 {
2974     gint x, y, w, h;
2975
2976     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2977         self->fullscreen == fs) return;                   /* already done */
2978
2979     self->fullscreen = fs;
2980     client_change_state(self); /* change the state hints on the client */
2981
2982     if (fs) {
2983         self->pre_fullscreen_area = self->area;
2984         /* if the window is maximized, its area isn't all that meaningful.
2985            save it's premax area instead. */
2986         if (self->max_horz) {
2987             self->pre_fullscreen_area.x = self->pre_max_area.x;
2988             self->pre_fullscreen_area.width = self->pre_max_area.width;
2989         }
2990         if (self->max_vert) {
2991             self->pre_fullscreen_area.y = self->pre_max_area.y;
2992             self->pre_fullscreen_area.height = self->pre_max_area.height;
2993         }
2994
2995         /* these will help configure_full figure out where to fullscreen
2996            the window */
2997         x = self->area.x;
2998         y = self->area.y;
2999         w = self->area.width;
3000         h = self->area.height;
3001     } else {
3002         g_assert(self->pre_fullscreen_area.width > 0 &&
3003                  self->pre_fullscreen_area.height > 0);
3004
3005         x = self->pre_fullscreen_area.x;
3006         y = self->pre_fullscreen_area.y;
3007         w = self->pre_fullscreen_area.width;
3008         h = self->pre_fullscreen_area.height;
3009         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3010     }
3011
3012     client_setup_decor_and_functions(self, FALSE);
3013     client_move_resize(self, x, y, w, h);
3014
3015     /* and adjust our layer/stacking. do this after resizing the window,
3016        and applying decorations, because windows which fill the screen are
3017        considered "fullscreen" and it affects their layer */
3018     client_calc_layer(self);
3019
3020     if (fs) {
3021         /* try focus us when we go into fullscreen mode */
3022         client_focus(self);
3023     }
3024 }
3025
3026 static void client_iconify_recursive(ObClient *self,
3027                                      gboolean iconic, gboolean curdesk,
3028                                      gboolean hide_animation)
3029 {
3030     GSList *it;
3031     gboolean changed = FALSE;
3032
3033
3034     if (self->iconic != iconic) {
3035         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3036                  self->window);
3037
3038         if (iconic) {
3039             /* don't let non-normal windows iconify along with their parents
3040                or whatever */
3041             if (client_normal(self)) {
3042                 self->iconic = iconic;
3043
3044                 /* update the focus lists.. iconic windows go to the bottom of
3045                    the list */
3046                 focus_order_to_bottom(self);
3047
3048                 changed = TRUE;
3049             }
3050         } else {
3051             self->iconic = iconic;
3052
3053             if (curdesk && self->desktop != screen_desktop &&
3054                 self->desktop != DESKTOP_ALL)
3055                 client_set_desktop(self, screen_desktop, FALSE);
3056
3057             /* this puts it after the current focused window */
3058             focus_order_remove(self);
3059             focus_order_add_new(self);
3060
3061             changed = TRUE;
3062         }
3063     }
3064
3065     if (changed) {
3066         client_change_state(self);
3067         if (config_animate_iconify && !hide_animation)
3068             frame_begin_iconify_animation(self->frame, iconic);
3069         /* do this after starting the animation so it doesn't flash */
3070         client_showhide(self);
3071     }
3072
3073     /* iconify all direct transients, and deiconify all transients
3074        (non-direct too) */
3075     for (it = self->transients; it; it = g_slist_next(it))
3076         if (it->data != self)
3077             if (client_is_direct_child(self, it->data) || !iconic)
3078                 client_iconify_recursive(it->data, iconic, curdesk,
3079                                          hide_animation);
3080 }
3081
3082 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3083                     gboolean hide_animation)
3084 {
3085     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3086         /* move up the transient chain as far as possible first */
3087         self = client_search_top_direct_parent(self);
3088         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3089     }
3090 }
3091
3092 void client_maximize(ObClient *self, gboolean max, gint dir)
3093 {
3094     gint x, y, w, h;
3095
3096     g_assert(dir == 0 || dir == 1 || dir == 2);
3097     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3098
3099     /* check if already done */
3100     if (max) {
3101         if (dir == 0 && self->max_horz && self->max_vert) return;
3102         if (dir == 1 && self->max_horz) return;
3103         if (dir == 2 && self->max_vert) return;
3104     } else {
3105         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3106         if (dir == 1 && !self->max_horz) return;
3107         if (dir == 2 && !self->max_vert) return;
3108     }
3109
3110     /* these will help configure_full figure out which screen to fill with
3111        the window */
3112     x = self->area.x;
3113     y = self->area.y;
3114     w = self->area.width;
3115     h = self->area.height;
3116
3117     if (max) {
3118         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3119             RECT_SET(self->pre_max_area,
3120                      self->area.x, self->pre_max_area.y,
3121                      self->area.width, self->pre_max_area.height);
3122         }
3123         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3124             RECT_SET(self->pre_max_area,
3125                      self->pre_max_area.x, self->area.y,
3126                      self->pre_max_area.width, self->area.height);
3127         }
3128     } else {
3129         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3130             g_assert(self->pre_max_area.width > 0);
3131
3132             x = self->pre_max_area.x;
3133             w = self->pre_max_area.width;
3134
3135             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3136                      0, self->pre_max_area.height);
3137         }
3138         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3139             g_assert(self->pre_max_area.height > 0);
3140
3141             y = self->pre_max_area.y;
3142             h = self->pre_max_area.height;
3143
3144             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3145                      self->pre_max_area.width, 0);
3146         }
3147     }
3148
3149     if (dir == 0 || dir == 1) /* horz */
3150         self->max_horz = max;
3151     if (dir == 0 || dir == 2) /* vert */
3152         self->max_vert = max;
3153
3154     client_change_state(self); /* change the state hints on the client */
3155
3156     client_setup_decor_and_functions(self, FALSE);
3157     client_move_resize(self, x, y, w, h);
3158 }
3159
3160 void client_shade(ObClient *self, gboolean shade)
3161 {
3162     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3163          shade) ||                         /* can't shade */
3164         self->shaded == shade) return;     /* already done */
3165
3166     self->shaded = shade;
3167     client_change_state(self);
3168     client_change_wm_state(self); /* the window is being hidden/shown */
3169     /* resize the frame to just the titlebar */
3170     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3171 }
3172
3173 void client_close(ObClient *self)
3174 {
3175     XEvent ce;
3176
3177     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3178
3179     /* in the case that the client provides no means to requesting that it
3180        close, we just kill it */
3181     if (!self->delete_window)
3182         client_kill(self);
3183
3184     /*
3185       XXX: itd be cool to do timeouts and shit here for killing the client's
3186       process off
3187       like... if the window is around after 5 seconds, then the close button
3188       turns a nice red, and if this function is called again, the client is
3189       explicitly killed.
3190     */
3191
3192     ce.xclient.type = ClientMessage;
3193     ce.xclient.message_type =  prop_atoms.wm_protocols;
3194     ce.xclient.display = ob_display;
3195     ce.xclient.window = self->window;
3196     ce.xclient.format = 32;
3197     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3198     ce.xclient.data.l[1] = event_curtime;
3199     ce.xclient.data.l[2] = 0l;
3200     ce.xclient.data.l[3] = 0l;
3201     ce.xclient.data.l[4] = 0l;
3202     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3203 }
3204
3205 void client_kill(ObClient *self)
3206 {
3207     XKillClient(ob_display, self->window);
3208 }
3209
3210 void client_hilite(ObClient *self, gboolean hilite)
3211 {
3212     if (self->demands_attention == hilite)
3213         return; /* no change */
3214
3215     /* don't allow focused windows to hilite */
3216     self->demands_attention = hilite && !client_focused(self);
3217     if (self->frame != NULL) { /* if we're mapping, just set the state */
3218         if (self->demands_attention)
3219             frame_flash_start(self->frame);
3220         else
3221             frame_flash_stop(self->frame);
3222         client_change_state(self);
3223     }
3224 }
3225
3226 void client_set_desktop_recursive(ObClient *self,
3227                                   guint target,
3228                                   gboolean donthide)
3229 {
3230     guint old;
3231     GSList *it;
3232
3233     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3234
3235         ob_debug("Setting desktop %u\n", target+1);
3236
3237         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3238
3239         old = self->desktop;
3240         self->desktop = target;
3241         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3242         /* the frame can display the current desktop state */
3243         frame_adjust_state(self->frame);
3244         /* 'move' the window to the new desktop */
3245         if (!donthide)
3246             client_showhide(self);
3247         /* raise if it was not already on the desktop */
3248         if (old != DESKTOP_ALL)
3249             stacking_raise(CLIENT_AS_WINDOW(self));
3250         /* the new desktop's geometry may be different, so we may need to
3251            resize, for example if we are maximized */
3252         client_reconfigure(self);
3253         if (STRUT_EXISTS(self->strut))
3254             screen_update_areas();
3255     }
3256
3257     /* move all transients */
3258     for (it = self->transients; it; it = g_slist_next(it))
3259         if (it->data != self)
3260             if (client_is_direct_child(self, it->data))
3261                 client_set_desktop_recursive(it->data, target, donthide);
3262 }
3263
3264 void client_set_desktop(ObClient *self, guint target, gboolean donthide)
3265 {
3266     self = client_search_top_direct_parent(self);
3267     client_set_desktop_recursive(self, target, donthide);
3268 }
3269
3270 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3271 {
3272     while (child != parent && (child = client_direct_parent(child)));
3273     return child == parent;
3274 }
3275
3276 ObClient *client_search_modal_child(ObClient *self)
3277 {
3278     GSList *it;
3279     ObClient *ret;
3280
3281     for (it = self->transients; it; it = g_slist_next(it)) {
3282         ObClient *c = it->data;
3283         if ((ret = client_search_modal_child(c))) return ret;
3284         if (c->modal) return c;
3285     }
3286     return NULL;
3287 }
3288
3289 gboolean client_validate(ObClient *self)
3290 {
3291     XEvent e;
3292
3293     XSync(ob_display, FALSE); /* get all events on the server */
3294
3295     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3296         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3297         XPutBackEvent(ob_display, &e);
3298         return FALSE;
3299     }
3300
3301     return TRUE;
3302 }
3303
3304 void client_set_wm_state(ObClient *self, glong state)
3305 {
3306     if (state == self->wmstate) return; /* no change */
3307
3308     switch (state) {
3309     case IconicState:
3310         client_iconify(self, TRUE, TRUE, FALSE);
3311         break;
3312     case NormalState:
3313         client_iconify(self, FALSE, TRUE, FALSE);
3314         break;
3315     }
3316 }
3317
3318 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3319 {
3320     gboolean shaded = self->shaded;
3321     gboolean fullscreen = self->fullscreen;
3322     gboolean undecorated = self->undecorated;
3323     gboolean max_horz = self->max_horz;
3324     gboolean max_vert = self->max_vert;
3325     gboolean modal = self->modal;
3326     gboolean iconic = self->iconic;
3327     gboolean demands_attention = self->demands_attention;
3328     gboolean above = self->above;
3329     gboolean below = self->below;
3330     gint i;
3331
3332     if (!(action == prop_atoms.net_wm_state_add ||
3333           action == prop_atoms.net_wm_state_remove ||
3334           action == prop_atoms.net_wm_state_toggle))
3335         /* an invalid action was passed to the client message, ignore it */
3336         return;
3337
3338     for (i = 0; i < 2; ++i) {
3339         Atom state = i == 0 ? data1 : data2;
3340
3341         if (!state) continue;
3342
3343         /* if toggling, then pick whether we're adding or removing */
3344         if (action == prop_atoms.net_wm_state_toggle) {
3345             if (state == prop_atoms.net_wm_state_modal)
3346                 action = modal ? prop_atoms.net_wm_state_remove :
3347                     prop_atoms.net_wm_state_add;
3348             else if (state == prop_atoms.net_wm_state_maximized_vert)
3349                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3350                     prop_atoms.net_wm_state_add;
3351             else if (state == prop_atoms.net_wm_state_maximized_horz)
3352                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3353                     prop_atoms.net_wm_state_add;
3354             else if (state == prop_atoms.net_wm_state_shaded)
3355                 action = shaded ? prop_atoms.net_wm_state_remove :
3356                     prop_atoms.net_wm_state_add;
3357             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3358                 action = self->skip_taskbar ?
3359                     prop_atoms.net_wm_state_remove :
3360                     prop_atoms.net_wm_state_add;
3361             else if (state == prop_atoms.net_wm_state_skip_pager)
3362                 action = self->skip_pager ?
3363                     prop_atoms.net_wm_state_remove :
3364                     prop_atoms.net_wm_state_add;
3365             else if (state == prop_atoms.net_wm_state_hidden)
3366                 action = self->iconic ?
3367                     prop_atoms.net_wm_state_remove :
3368                     prop_atoms.net_wm_state_add;
3369             else if (state == prop_atoms.net_wm_state_fullscreen)
3370                 action = fullscreen ?
3371                     prop_atoms.net_wm_state_remove :
3372                     prop_atoms.net_wm_state_add;
3373             else if (state == prop_atoms.net_wm_state_above)
3374                 action = self->above ? prop_atoms.net_wm_state_remove :
3375                     prop_atoms.net_wm_state_add;
3376             else if (state == prop_atoms.net_wm_state_below)
3377                 action = self->below ? prop_atoms.net_wm_state_remove :
3378                     prop_atoms.net_wm_state_add;
3379             else if (state == prop_atoms.net_wm_state_demands_attention)
3380                 action = self->demands_attention ?
3381                     prop_atoms.net_wm_state_remove :
3382                     prop_atoms.net_wm_state_add;
3383             else if (state == prop_atoms.ob_wm_state_undecorated)
3384                 action = undecorated ? prop_atoms.net_wm_state_remove :
3385                     prop_atoms.net_wm_state_add;
3386         }
3387
3388         if (action == prop_atoms.net_wm_state_add) {
3389             if (state == prop_atoms.net_wm_state_modal) {
3390                 modal = TRUE;
3391             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3392                 max_vert = TRUE;
3393             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3394                 max_horz = TRUE;
3395             } else if (state == prop_atoms.net_wm_state_shaded) {
3396                 shaded = TRUE;
3397             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3398                 self->skip_taskbar = TRUE;
3399             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3400                 self->skip_pager = TRUE;
3401             } else if (state == prop_atoms.net_wm_state_hidden) {
3402                 iconic = TRUE;
3403             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3404                 fullscreen = TRUE;
3405             } else if (state == prop_atoms.net_wm_state_above) {
3406                 above = TRUE;
3407                 below = FALSE;
3408             } else if (state == prop_atoms.net_wm_state_below) {
3409                 above = FALSE;
3410                 below = TRUE;
3411             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3412                 demands_attention = TRUE;
3413             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3414                 undecorated = TRUE;
3415             }
3416
3417         } else { /* action == prop_atoms.net_wm_state_remove */
3418             if (state == prop_atoms.net_wm_state_modal) {
3419                 modal = FALSE;
3420             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3421                 max_vert = FALSE;
3422             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3423                 max_horz = FALSE;
3424             } else if (state == prop_atoms.net_wm_state_shaded) {
3425                 shaded = FALSE;
3426             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3427                 self->skip_taskbar = FALSE;
3428             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3429                 self->skip_pager = FALSE;
3430             } else if (state == prop_atoms.net_wm_state_hidden) {
3431                 iconic = FALSE;
3432             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3433                 fullscreen = FALSE;
3434             } else if (state == prop_atoms.net_wm_state_above) {
3435                 above = FALSE;
3436             } else if (state == prop_atoms.net_wm_state_below) {
3437                 below = FALSE;
3438             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3439                 demands_attention = FALSE;
3440             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3441                 undecorated = FALSE;
3442             }
3443         }
3444     }
3445
3446     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3447         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3448             /* toggling both */
3449             if (max_horz == max_vert) { /* both going the same way */
3450                 client_maximize(self, max_horz, 0);
3451             } else {
3452                 client_maximize(self, max_horz, 1);
3453                 client_maximize(self, max_vert, 2);
3454             }
3455         } else {
3456             /* toggling one */
3457             if (max_horz != self->max_horz)
3458                 client_maximize(self, max_horz, 1);
3459             else
3460                 client_maximize(self, max_vert, 2);
3461         }
3462     }
3463     /* change fullscreen state before shading, as it will affect if the window
3464        can shade or not */
3465     if (fullscreen != self->fullscreen)
3466         client_fullscreen(self, fullscreen);
3467     if (shaded != self->shaded)
3468         client_shade(self, shaded);
3469     if (undecorated != self->undecorated)
3470         client_set_undecorated(self, undecorated);
3471     if (above != self->above || below != self->below) {
3472         self->above = above;
3473         self->below = below;
3474         client_calc_layer(self);
3475     }
3476
3477     if (modal != self->modal) {
3478         self->modal = modal;
3479         /* when a window changes modality, then its stacking order with its
3480            transients needs to change */
3481         stacking_raise(CLIENT_AS_WINDOW(self));
3482
3483         /* it also may get focused. if something is focused that shouldn't
3484            be focused anymore, then move the focus */
3485         if (focus_client && client_focus_target(focus_client) != focus_client)
3486             client_focus(focus_client);
3487     }
3488
3489     if (iconic != self->iconic)
3490         client_iconify(self, iconic, FALSE, FALSE);
3491
3492     if (demands_attention != self->demands_attention)
3493         client_hilite(self, demands_attention);
3494
3495     client_change_state(self); /* change the hint to reflect these changes */
3496 }
3497
3498 ObClient *client_focus_target(ObClient *self)
3499 {
3500     ObClient *child = NULL;
3501
3502     child = client_search_modal_child(self);
3503     if (child) return child;
3504     return self;
3505 }
3506
3507 gboolean client_can_focus(ObClient *self)
3508 {
3509     /* choose the correct target */
3510     self = client_focus_target(self);
3511
3512     if (!self->frame->visible)
3513         return FALSE;
3514
3515     if (!(self->can_focus || self->focus_notify))
3516         return FALSE;
3517
3518     return TRUE;
3519 }
3520
3521 gboolean client_focus(ObClient *self)
3522 {
3523     /* we might not focus this window, so if we have modal children which would
3524        be focused instead, bring them to this desktop */
3525     client_bring_modal_windows(self);
3526
3527     /* choose the correct target */
3528     self = client_focus_target(self);
3529
3530     if (!client_can_focus(self)) {
3531         ob_debug_type(OB_DEBUG_FOCUS,
3532                       "Client %s can't be focused\n", self->title);
3533         return FALSE;
3534     }
3535
3536     ob_debug_type(OB_DEBUG_FOCUS,
3537                   "Focusing client \"%s\" (0x%x) at time %u\n",
3538                   self->title, self->window, event_curtime);
3539
3540     /* if there is a grab going on, then we need to cancel it. if we move
3541        focus during the grab, applications will get NotifyWhileGrabbed events
3542        and ignore them !
3543
3544        actions should not rely on being able to move focus during an
3545        interactive grab.
3546     */
3547     event_cancel_all_key_grabs();
3548
3549     xerror_set_ignore(TRUE);
3550     xerror_occured = FALSE;
3551
3552     if (self->can_focus) {
3553         /* This can cause a BadMatch error with CurrentTime, or if an app
3554            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3555         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3556                        event_curtime);
3557     }
3558
3559     if (self->focus_notify) {
3560         XEvent ce;
3561         ce.xclient.type = ClientMessage;
3562         ce.xclient.message_type = prop_atoms.wm_protocols;
3563         ce.xclient.display = ob_display;
3564         ce.xclient.window = self->window;
3565         ce.xclient.format = 32;
3566         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3567         ce.xclient.data.l[1] = event_curtime;
3568         ce.xclient.data.l[2] = 0l;
3569         ce.xclient.data.l[3] = 0l;
3570         ce.xclient.data.l[4] = 0l;
3571         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3572     }
3573
3574     xerror_set_ignore(FALSE);
3575
3576     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3577     return !xerror_occured;
3578 }
3579
3580 /*! Present the client to the user.
3581   @param raise If the client should be raised or not. You should only set
3582                raise to false if you don't care if the window is completely
3583                hidden.
3584 */
3585 static void client_present(ObClient *self, gboolean here, gboolean raise)
3586 {
3587     /* if using focus_delay, stop the timer now so that focus doesn't
3588        go moving on us */
3589     event_halt_focus_delay();
3590
3591     if (client_normal(self) && screen_showing_desktop)
3592         screen_show_desktop(FALSE, self);
3593     if (self->iconic)
3594         client_iconify(self, FALSE, here, FALSE);
3595     if (self->desktop != DESKTOP_ALL &&
3596         self->desktop != screen_desktop)
3597     {
3598         if (here)
3599             client_set_desktop(self, screen_desktop, FALSE);
3600         else
3601             screen_set_desktop(self->desktop, FALSE);
3602     } else if (!self->frame->visible)
3603         /* if its not visible for other reasons, then don't mess
3604            with it */
3605         return;
3606     if (self->shaded)
3607         client_shade(self, FALSE);
3608     if (raise)
3609         stacking_raise(CLIENT_AS_WINDOW(self));
3610
3611     client_focus(self);
3612 }
3613
3614 void client_activate(ObClient *self, gboolean here, gboolean user)
3615 {
3616     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3617     gboolean allow = FALSE;
3618
3619     /* if the currently focused app doesn't set a user_time, then it can't
3620        benefit from any focus stealing prevention.
3621
3622        if the timestamp is missing in the request then let it go through
3623        even if it is source=app, because EVERY APPLICATION DOES THIS because
3624        GTK IS VERY BUGGY AND HARDCODES source=application... WHY!?
3625     */
3626     if (!last_time || !event_curtime)
3627         allow = TRUE;
3628     /* otherwise, if they didn't give a time stamp or if it is too old, they
3629        don't get focus */
3630     else
3631         allow = event_time_after(event_curtime, last_time);
3632
3633     ob_debug_type(OB_DEBUG_FOCUS,
3634                   "Want to activate window 0x%x with time %u (last time %u), "
3635                   "source=%s allowing? %d\n",
3636                   self->window, event_curtime, last_time,
3637                   (user ? "user" : "application"), allow);
3638
3639     if (allow)
3640         client_present(self, here, TRUE);
3641     else
3642         /* don't focus it but tell the user it wants attention */
3643         client_hilite(self, TRUE);
3644 }
3645
3646 static void client_bring_windows_recursive(ObClient *self,
3647                                            guint desktop,
3648                                            gboolean helpers,
3649                                            gboolean modals,
3650                                            gboolean iconic)
3651 {
3652     GSList *it;
3653
3654     for (it = self->transients; it; it = g_slist_next(it))
3655         client_bring_windows_recursive(it->data, desktop,
3656                                        helpers, modals, iconic);
3657
3658     if (((helpers && client_helper(self)) ||
3659          (modals && self->modal)) &&
3660         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3661          (iconic && self->iconic)))
3662     {
3663         if (iconic && self->iconic)
3664             client_iconify(self, FALSE, TRUE, FALSE);
3665         else
3666             client_set_desktop(self, desktop, FALSE);
3667     }
3668 }
3669
3670 void client_bring_helper_windows(ObClient *self)
3671 {
3672     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3673 }
3674
3675 void client_bring_modal_windows(ObClient *self)
3676 {
3677     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3678 }
3679
3680 gboolean client_focused(ObClient *self)
3681 {
3682     return self == focus_client;
3683 }
3684
3685 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3686 {
3687     guint i;
3688     gulong min_diff, min_i;
3689
3690     if (!self->nicons) {
3691         ObClientIcon *parent = NULL;
3692         GSList *it;
3693
3694         for (it = self->parents; it; it = g_slist_next(it)) {
3695             ObClient *c = it->data;
3696             if ((parent = client_icon_recursive(c, w, h)))
3697                 break;
3698         }
3699
3700         return parent;
3701     }
3702
3703     /* some kind of crappy approximation to find the icon closest in size to
3704        what we requested, but icons are generally all the same ratio as
3705        eachother so it's good enough. */
3706
3707     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3708     min_i = 0;
3709
3710     for (i = 1; i < self->nicons; ++i) {
3711         gulong diff;
3712
3713         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3714         if (diff < min_diff) {
3715             min_diff = diff;
3716             min_i = i;
3717         }
3718     }
3719     return &self->icons[min_i];
3720 }
3721
3722 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3723 {
3724     ObClientIcon *ret;
3725     static ObClientIcon deficon;
3726
3727     if (!(ret = client_icon_recursive(self, w, h))) {
3728         deficon.width = deficon.height = 48;
3729         deficon.data = ob_rr_theme->def_win_icon;
3730         ret = &deficon;
3731     }
3732     return ret;
3733 }
3734
3735 void client_set_layer(ObClient *self, gint layer)
3736 {
3737     if (layer < 0) {
3738         self->below = TRUE;
3739         self->above = FALSE;
3740     } else if (layer == 0) {
3741         self->below = self->above = FALSE;
3742     } else {
3743         self->below = FALSE;
3744         self->above = TRUE;
3745     }
3746     client_calc_layer(self);
3747     client_change_state(self); /* reflect this in the state hints */
3748 }
3749
3750 void client_set_undecorated(ObClient *self, gboolean undecorated)
3751 {
3752     if (self->undecorated != undecorated &&
3753         /* don't let it undecorate if the function is missing, but let
3754            it redecorate */
3755         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3756     {
3757         self->undecorated = undecorated;
3758         client_setup_decor_and_functions(self, TRUE);
3759         client_change_state(self); /* reflect this in the state hints */
3760     }
3761 }
3762
3763 guint client_monitor(ObClient *self)
3764 {
3765     return screen_find_monitor(&self->frame->area);
3766 }
3767
3768 ObClient *client_direct_parent(ObClient *self)
3769 {
3770     if (!self->parents) return NULL;
3771     if (self->transient_for_group) return NULL;
3772     return self->parents->data;
3773 }
3774
3775 ObClient *client_search_top_direct_parent(ObClient *self)
3776 {
3777     ObClient *p;
3778     while ((p = client_direct_parent(self))) self = p;
3779     return self;
3780 }
3781
3782 static GSList *client_search_all_top_parents_internal(ObClient *self,
3783                                                       gboolean bylayer,
3784                                                       ObStackingLayer layer)
3785 {
3786     GSList *ret;
3787     ObClient *p;
3788
3789     /* move up the direct transient chain as far as possible */
3790     while ((p = client_direct_parent(self)) &&
3791            (!bylayer || p->layer == layer))
3792         self = p;
3793
3794     if (!self->parents)
3795         ret = g_slist_prepend(NULL, self);
3796     else
3797         ret = g_slist_copy(self->parents);
3798
3799     return ret;
3800 }
3801
3802 GSList *client_search_all_top_parents(ObClient *self)
3803 {
3804     return client_search_all_top_parents_internal(self, FALSE, 0);
3805 }
3806
3807 GSList *client_search_all_top_parents_layer(ObClient *self)
3808 {
3809     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3810 }
3811
3812 ObClient *client_search_focus_parent(ObClient *self)
3813 {
3814     GSList *it;
3815
3816     for (it = self->parents; it; it = g_slist_next(it))
3817         if (client_focused(it->data)) return it->data;
3818
3819     return NULL;
3820 }
3821
3822 ObClient *client_search_parent(ObClient *self, ObClient *search)
3823 {
3824     GSList *it;
3825
3826     for (it = self->parents; it; it = g_slist_next(it))
3827         if (it->data == search) return search;
3828
3829     return NULL;
3830 }
3831
3832 ObClient *client_search_transient(ObClient *self, ObClient *search)
3833 {
3834     GSList *sit;
3835
3836     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3837         if (sit->data == search)
3838             return search;
3839         if (client_search_transient(sit->data, search))
3840             return search;
3841     }
3842     return NULL;
3843 }
3844
3845 #define WANT_EDGE(cur, c) \
3846             if (cur == c)                                                     \
3847                 continue;                                                     \
3848             if (c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&  \
3849                 cur->desktop != screen_desktop)                               \
3850                 continue;                                                     \
3851             if (cur->iconic)                                                  \
3852                 continue;
3853
3854 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3855             if ((his_edge_start >= my_edge_start && \
3856                  his_edge_start <= my_edge_end) ||  \
3857                 (my_edge_start >= his_edge_start && \
3858                  my_edge_start <= his_edge_end))    \
3859                 dest = his_offset;
3860
3861 /* finds the nearest edge in the given direction from the current client
3862  * note to self: the edge is the -frame- edge (the actual one), not the
3863  * client edge.
3864  */
3865 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3866 {
3867     gint dest, monitor_dest;
3868     gint my_edge_start, my_edge_end, my_offset;
3869     GList *it;
3870     Rect *a, *monitor;
3871
3872     if(!client_list)
3873         return -1;
3874
3875     a = screen_area(c->desktop, &c->frame->area);
3876     monitor = screen_area_monitor(c->desktop, client_monitor(c),
3877                                   &c->frame->area);
3878
3879     switch(dir) {
3880     case OB_DIRECTION_NORTH:
3881         my_edge_start = c->frame->area.x;
3882         my_edge_end = c->frame->area.x + c->frame->area.width;
3883         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3884
3885         /* default: top of screen */
3886         dest = a->y + (hang ? c->frame->area.height : 0);
3887         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3888         /* if the monitor edge comes before the screen edge, */
3889         /* use that as the destination instead. (For xinerama) */
3890         if (monitor_dest != dest && my_offset > monitor_dest)
3891             dest = monitor_dest;
3892
3893         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3894             gint his_edge_start, his_edge_end, his_offset;
3895             ObClient *cur = it->data;
3896
3897             WANT_EDGE(cur, c)
3898
3899             his_edge_start = cur->frame->area.x;
3900             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3901             his_offset = cur->frame->area.y +
3902                          (hang ? 0 : cur->frame->area.height);
3903
3904             if(his_offset + 1 > my_offset)
3905                 continue;
3906
3907             if(his_offset < dest)
3908                 continue;
3909
3910             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3911         }
3912         break;
3913     case OB_DIRECTION_SOUTH:
3914         my_edge_start = c->frame->area.x;
3915         my_edge_end = c->frame->area.x + c->frame->area.width;
3916         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3917
3918         /* default: bottom of screen */
3919         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3920         monitor_dest = monitor->y + monitor->height -
3921                        (hang ? c->frame->area.height : 0);
3922         /* if the monitor edge comes before the screen edge, */
3923         /* use that as the destination instead. (For xinerama) */
3924         if (monitor_dest != dest && my_offset < monitor_dest)
3925             dest = monitor_dest;
3926
3927         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3928             gint his_edge_start, his_edge_end, his_offset;
3929             ObClient *cur = it->data;
3930
3931             WANT_EDGE(cur, c)
3932
3933             his_edge_start = cur->frame->area.x;
3934             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3935             his_offset = cur->frame->area.y +
3936                          (hang ? cur->frame->area.height : 0);
3937
3938
3939             if(his_offset - 1 < my_offset)
3940                 continue;
3941
3942             if(his_offset > dest)
3943                 continue;
3944
3945             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3946         }
3947         break;
3948     case OB_DIRECTION_WEST:
3949         my_edge_start = c->frame->area.y;
3950         my_edge_end = c->frame->area.y + c->frame->area.height;
3951         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3952
3953         /* default: leftmost egde of screen */
3954         dest = a->x + (hang ? c->frame->area.width : 0);
3955         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3956         /* if the monitor edge comes before the screen edge, */
3957         /* use that as the destination instead. (For xinerama) */
3958         if (monitor_dest != dest && my_offset > monitor_dest)
3959             dest = monitor_dest;
3960
3961         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3962             gint his_edge_start, his_edge_end, his_offset;
3963             ObClient *cur = it->data;
3964
3965             WANT_EDGE(cur, c)
3966
3967             his_edge_start = cur->frame->area.y;
3968             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3969             his_offset = cur->frame->area.x +
3970                          (hang ? 0 : cur->frame->area.width);
3971
3972             if(his_offset + 1 > my_offset)
3973                 continue;
3974
3975             if(his_offset < dest)
3976                 continue;
3977
3978             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3979         }
3980        break;
3981     case OB_DIRECTION_EAST:
3982         my_edge_start = c->frame->area.y;
3983         my_edge_end = c->frame->area.y + c->frame->area.height;
3984         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3985
3986         /* default: rightmost edge of screen */
3987         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3988         monitor_dest = monitor->x + monitor->width -
3989                        (hang ? c->frame->area.width : 0);
3990         /* if the monitor edge comes before the screen edge, */
3991         /* use that as the destination instead. (For xinerama) */
3992         if (monitor_dest != dest && my_offset < monitor_dest)
3993             dest = monitor_dest;
3994
3995         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3996             gint his_edge_start, his_edge_end, his_offset;
3997             ObClient *cur = it->data;
3998
3999             WANT_EDGE(cur, c)
4000
4001             his_edge_start = cur->frame->area.y;
4002             his_edge_end = cur->frame->area.y + cur->frame->area.height;
4003             his_offset = cur->frame->area.x +
4004                          (hang ? cur->frame->area.width : 0);
4005
4006             if(his_offset - 1 < my_offset)
4007                 continue;
4008
4009             if(his_offset > dest)
4010                 continue;
4011
4012             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
4013         }
4014         break;
4015     case OB_DIRECTION_NORTHEAST:
4016     case OB_DIRECTION_SOUTHEAST:
4017     case OB_DIRECTION_NORTHWEST:
4018     case OB_DIRECTION_SOUTHWEST:
4019         /* not implemented */
4020     default:
4021         g_assert_not_reached();
4022         dest = 0; /* suppress warning */
4023     }
4024
4025     g_free(a);
4026     g_free(monitor);
4027     return dest;
4028 }
4029
4030 ObClient* client_under_pointer()
4031 {
4032     gint x, y;
4033     GList *it;
4034     ObClient *ret = NULL;
4035
4036     if (screen_pointer_pos(&x, &y)) {
4037         for (it = stacking_list; it; it = g_list_next(it)) {
4038             if (WINDOW_IS_CLIENT(it->data)) {
4039                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4040                 if (c->frame->visible &&
4041                     /* check the desktop, this is done during desktop
4042                        switching and windows are shown/hidden status is not
4043                        reliable */
4044                     (c->desktop == screen_desktop ||
4045                      c->desktop == DESKTOP_ALL) &&
4046                     /* ignore all animating windows */
4047                     !frame_iconify_animating(c->frame) &&
4048                     RECT_CONTAINS(c->frame->area, x, y))
4049                 {
4050                     ret = c;
4051                     break;
4052                 }
4053             }
4054         }
4055     }
4056     return ret;
4057 }
4058
4059 gboolean client_has_group_siblings(ObClient *self)
4060 {
4061     return self->group && self->group->members->next;
4062 }