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_toggle_border(ObClient *self, gboolean show);
  71 static void client_get_startup_id(ObClient *self);
  72 static void client_get_session_ids(ObClient *self);
  73 static void client_get_area(ObClient *self);
  74 static void client_get_desktop(ObClient *self);
  75 static void client_get_state(ObClient *self);
  76 static void client_get_shaped(ObClient *self);
  77 static void client_get_mwm_hints(ObClient *self);
  78 static void client_get_colormap(ObClient *self);
  79 static void client_change_allowed_actions(ObClient *self);
  80 static void client_change_state(ObClient *self);
  81 static void client_change_wm_state(ObClient *self);
  82 static void client_apply_startup_state(ObClient *self);
  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                                          ObClient* oldparent,
  89                                          ObClient *newparent);
  90 static void client_present(ObClient *self, gboolean here, gboolean raise);
  91 static GSList *client_search_all_top_parents_internal(ObClient *self,
  92                                                       gboolean bylayer,
  93                                                       ObStackingLayer layer);
  94 static void client_call_notifies(ObClient *self, GSList *list);
  95
  96 void client_startup(gboolean reconfig)
  97 {
  98     if (reconfig) return;
  99
 100     client_set_list();
 101 }
 102
 103 void client_shutdown(gboolean reconfig)
 104 {
 105     if (reconfig) return;
 106 }
 107
 108 static void client_call_notifies(ObClient *self, GSList *list)
 109 {
 110     GSList *it;
 111
 112     for (it = list; it; it = g_slist_next(it)) {
 113         ClientCallback *d = it->data;
 114         d->func(self, d->data);
 115     }
 116 }
 117
 118 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 119 {
 120     ClientCallback *d = g_new(ClientCallback, 1);
 121     d->func = func;
 122     d->data = data;
 123     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 124 }
 125
 126 void client_remove_destroy_notify(ObClientCallback func)
 127 {
 128     GSList *it;
 129
 130     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 131         ClientCallback *d = it->data;
 132         if (d->func == func) {
 133             g_free(d);
 134             client_destroy_notifies =
 135                 g_slist_delete_link(client_destroy_notifies, it);
 136             break;
 137         }
 138     }
 139 }
 140
 141 void client_set_list()
 142 {
 143     Window *windows, *win_it;
 144     GList *it;
 145     guint size = g_list_length(client_list);
 146
 147     /* create an array of the window ids */
 148     if (size > 0) {
 149         windows = g_new(Window, size);
 150         win_it = windows;
 151         for (it = client_list; it; it = g_list_next(it), ++win_it)
 152             *win_it = ((ObClient*)it->data)->window;
 153     } else
 154         windows = NULL;
 155
 156     PROP_SETA32(RootWindow(ob_display, ob_screen),
 157                 net_client_list, window, (gulong*)windows, size);
 158
 159     if (windows)
 160         g_free(windows);
 161
 162     stacking_set_list();
 163 }
 164
 165 /*
 166   void client_foreach_transient(ObClient *self, ObClientForeachFunc func, gpointer data)
 167   {
 168   GSList *it;
 169
 170   for (it = self->transients; it; it = g_slist_next(it)) {
 171   if (!func(it->data, data)) return;
 172   client_foreach_transient(it->data, func, data);
 173   }
 174   }
 175
 176   void client_foreach_ancestor(ObClient *self, ObClientForeachFunc func, gpointer data)
 177   {
 178   if (self->transient_for) {
 179   if (self->transient_for != OB_TRAN_GROUP) {
 180   if (!func(self->transient_for, data)) return;
 181   client_foreach_ancestor(self->transient_for, func, data);
 182   } else {
 183   GSList *it;
 184
 185   for (it = self->group->members; it; it = g_slist_next(it))
 186   if (it->data != self &&
 187   !((ObClient*)it->data)->transient_for) {
 188   if (!func(it->data, data)) return;
 189   client_foreach_ancestor(it->data, func, data);
 190   }
 191   }
 192   }
 193   }
 194 */
 195
 196 void client_manage_all()
 197 {
 198     guint i, j, nchild;
 199     Window w, *children;
 200     XWMHints *wmhints;
 201     XWindowAttributes attrib;
 202
 203     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 204                &w, &w, &children, &nchild);
 205
 206     /* remove all icon windows from the list */
 207     for (i = 0; i < nchild; i++) {
 208         if (children[i] == None) continue;
 209         wmhints = XGetWMHints(ob_display, children[i]);
 210         if (wmhints) {
 211             if ((wmhints->flags & IconWindowHint) &&
 212                 (wmhints->icon_window != children[i]))
 213                 for (j = 0; j < nchild; j++)
 214                     if (children[j] == wmhints->icon_window) {
 215                         children[j] = None;
 216                         break;
 217                     }
 218             XFree(wmhints);
 219         }
 220     }
 221
 222     for (i = 0; i < nchild; ++i) {
 223         if (children[i] == None)
 224             continue;
 225         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 226             if (attrib.override_redirect) continue;
 227
 228             if (attrib.map_state != IsUnmapped)
 229                 client_manage(children[i]);
 230         }
 231     }
 232     XFree(children);
 233 }
 234
 235 void client_manage(Window window)
 236 {
 237     ObClient *self;
 238     XEvent e;
 239     XWindowAttributes attrib;
 240     XSetWindowAttributes attrib_set;
 241     XWMHints *wmhint;
 242     gboolean activate = FALSE;
 243     ObAppSettings *settings;
 244
 245     grab_server(TRUE);
 246
 247     /* check if it has already been unmapped by the time we started
 248        mapping. the grab does a sync so we don't have to here */
 249     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 250         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 251     {
 252         XPutBackEvent(ob_display, &e);
 253
 254         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 255         grab_server(FALSE);
 256         return; /* don't manage it */
 257     }
 258
 259     /* make sure it isn't an override-redirect window */
 260     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 261         attrib.override_redirect)
 262     {
 263         grab_server(FALSE);
 264         return; /* don't manage it */
 265     }
 266
 267     /* is the window a docking app */
 268     if ((wmhint = XGetWMHints(ob_display, window))) {
 269         if ((wmhint->flags & StateHint) &&
 270             wmhint->initial_state == WithdrawnState)
 271         {
 272             dock_add(window, wmhint);
 273             grab_server(FALSE);
 274             XFree(wmhint);
 275             return;
 276         }
 277         XFree(wmhint);
 278     }
 279
 280     ob_debug("Managing window: %lx\n", window);
 281
 282     /* choose the events we want to receive on the CLIENT window */
 283     attrib_set.event_mask = CLIENT_EVENTMASK;
 284     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 285     XChangeWindowAttributes(ob_display, window,
 286                             CWEventMask|CWDontPropagate, &attrib_set);
 287
 288     /* create the ObClient struct, and populate it from the hints on the
 289        window */
 290     self = g_new0(ObClient, 1);
 291     self->obwin.type = Window_Client;
 292     self->window = window;
 293
 294     /* non-zero defaults */
 295     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 296     self->gravity = NorthWestGravity;
 297     self->desktop = screen_num_desktops; /* always an invalid value */
 298     self->user_time = focus_client ? focus_client->user_time : CurrentTime;
 299
 300     /* get all the stuff off the window */
 301     client_get_all(self, TRUE);
 302
 303     /* specify that if we exit, the window should not be destroyed and
 304        should be reparented back to root automatically */
 305     XChangeSaveSet(ob_display, window, SetModeInsert);
 306
 307     /* create the decoration frame for the client window */
 308     self->frame = frame_new(self);
 309
 310     frame_grab_client(self->frame);
 311
 312     /* we've grabbed everything and set everything that we need to at mapping
 313        time now */
 314     grab_server(FALSE);
 315
 316     /* per-app settings override stuff from client_get_all, and return the
 317        settings for other uses too. the returned settings is a shallow copy,
 318        that needs to be freed with g_free(). */
 319     settings = client_get_settings_state(self);
 320     /* the session should get the last say thought */
 321     client_restore_session_state(self);
 322
 323     /* now we have all of the window's information so we can set this up */
 324     client_setup_decor_and_functions(self);
 325
 326     /* remove the client's border (and adjust re gravity) */
 327     client_toggle_border(self, FALSE);
 328
 329     {
 330         Time t = sn_app_started(self->startup_id, self->class);
 331         if (t) self->user_time = t;
 332     }
 333
 334     /* do this after we have a frame.. it uses the frame to help determine the
 335        WM_STATE to apply. */
 336     client_change_state(self);
 337
 338     /* add ourselves to the focus order */
 339     focus_order_add_new(self);
 340
 341     /* do this to add ourselves to the stacking list in a non-intrusive way */
 342     client_calc_layer(self);
 343
 344     /* focus the new window? */
 345     if (ob_state() != OB_STATE_STARTING &&
 346         (!self->session || self->session->focused) &&
 347         !self->iconic &&
 348         /* this means focus=true for window is same as config_focus_new=true */
 349         ((config_focus_new || (settings && settings->focus == 1)) ||
 350          client_search_focus_parent(self)) &&
 351         /* this checks for focus=false for the window */
 352         (!settings || settings->focus != 0) &&
 353         /* note the check against Type_Normal/Dialog, not client_normal(self),
 354            which would also include other types. in this case we want more
 355            strict rules for focus */
 356         (self->type == OB_CLIENT_TYPE_NORMAL ||
 357          self->type == OB_CLIENT_TYPE_DIALOG))
 358     {
 359         activate = TRUE;
 360     }
 361
 362     /* figure out placement for the window */
 363     if (ob_state() == OB_STATE_RUNNING) {
 364         gboolean transient;
 365
 366         ob_debug("Positioned: %s @ %d %d\n",
 367                  (!self->positioned ? "no" :
 368                   (self->positioned == PPosition ? "program specified" :
 369                    (self->positioned == USPosition ? "user specified" :
 370                     "BADNESS !?"))), self->area.x, self->area.y);
 371
 372         transient = place_client(self, &self->area.x, &self->area.y, settings);
 373
 374         /* make sure the window is visible. */
 375         client_find_onscreen(self, &self->area.x, &self->area.y,
 376                              self->area.width, self->area.height,
 377                              /* non-normal clients has less rules, and
 378                                 windows that are being restored from a
 379                                 session do also. we can assume you want
 380                                 it back where you saved it. Clients saying
 381                                 they placed themselves are subjected to
 382                                 harder rules, ones that are placed by
 383                                 place.c or by the user are allowed partially
 384                                 off-screen and on xinerama divides (ie,
 385                                 it is up to the placement routines to avoid
 386                                 the xinerama divides) */
 387                              transient ||
 388                              (((self->positioned & PPosition) &&
 389                                !(self->positioned & USPosition)) &&
 390                               client_normal(self) &&
 391                               !self->session));
 392     }
 393
 394     ob_debug("placing window 0x%x at %d, %d with size %d x %d\n",
 395              self->window, self->area.x, self->area.y,
 396              self->area.width, self->area.height);
 397     if (self->session)
 398         ob_debug("  but session requested %d %d instead, overriding\n",
 399                  self->session->x, self->session->y);
 400
 401     /* adjust the frame to the client's size before showing the window */
 402     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 403     frame_adjust_client_area(self->frame);
 404
 405
 406     /* move the client to its placed position, or it it's already there,
 407        generate a ConfigureNotify telling the client where it is.
 408
 409        do this after adjusting the frame. otherwise it gets all weird and
 410        clients don't work right */
 411     client_configure(self, self->area.x, self->area.y,
 412                      self->area.width, self->area.height,
 413                      FALSE, TRUE);
 414
 415     /* do this after the window is placed, so the premax/prefullscreen numbers
 416        won't be all wacko!!
 417        also, this moves the window to the position where it has been placed
 418     */
 419     client_apply_startup_state(self);
 420
 421     if (activate) {
 422         guint32 last_time = focus_client ?
 423             focus_client->user_time : CurrentTime;
 424
 425         /* This is focus stealing prevention */
 426         ob_debug_type(OB_DEBUG_FOCUS,
 427                       "Want to focus new window 0x%x with time %u "
 428                       "(last time %u)\n",
 429                       self->window, self->user_time, last_time);
 430
 431         /* if it's on another desktop */
 432         if (!(self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
 433             && /* the timestamp is from before you changed desktops */
 434             self->user_time && screen_desktop_user_time &&
 435             !event_time_after(self->user_time, screen_desktop_user_time))
 436         {
 437             activate = FALSE;
 438             ob_debug_type(OB_DEBUG_FOCUS,
 439                           "Not focusing the window because its on another "
 440                           "desktop\n");
 441         }
 442         /* If something is focused, and it's not our parent... */
 443         else if (focus_client && client_search_focus_parent(self) == NULL)
 444         {
 445             /* If time stamp is old, don't steal focus */
 446             if (self->user_time && last_time &&
 447                 !event_time_after(self->user_time, last_time))
 448             {
 449                 activate = FALSE;
 450                 ob_debug_type(OB_DEBUG_FOCUS,
 451                               "Not focusing the window because the time is "
 452                               "too old\n");
 453             }
 454             /* Don't steal focus from globally active clients.
 455                I stole this idea from KWin. It seems nice.
 456              */
 457             if (!(focus_client->can_focus || focus_client->focus_notify)) {
 458                 activate = FALSE;
 459                 ob_debug_type(OB_DEBUG_FOCUS,
 460                               "Not focusing the window because a globally "
 461                               "active client has focus\n");
 462             }
 463         }
 464
 465         if (!activate) {
 466             ob_debug_type(OB_DEBUG_FOCUS,
 467                           "Focus stealing prevention activated for %s with "
 468                           "time %u (last time %u)\n",
 469                           self->title, self->user_time, last_time);
 470             /* if the client isn't focused, then hilite it so the user
 471                knows it is there */
 472             client_hilite(self, TRUE);
 473         }
 474     }
 475     else {
 476         /* This may look rather odd. Well it's because new windows are added
 477            to the stacking order non-intrusively. If we're not going to focus
 478            the new window or hilite it, then we raise it to the top. This will
 479            take affect for things that don't get focused like splash screens.
 480            Also if you don't have focus_new enabled, then it's going to get
 481            raised to the top. Legacy begets legacy I guess?
 482         */
 483         if (!client_restore_session_stacking(self))
 484             stacking_raise(CLIENT_AS_WINDOW(self));
 485     }
 486
 487     mouse_grab_for_client(self, TRUE);
 488
 489     /* this has to happen before we try focus the window, but we want it to
 490        happen after the client's stacking has been determined or it looks bad
 491     */
 492     client_show(self);
 493
 494     if (activate) {
 495         gboolean stacked = client_restore_session_stacking(self);
 496         client_present(self, FALSE, !stacked);
 497     }
 498
 499     /* add to client list/map */
 500     client_list = g_list_append(client_list, self);
 501     g_hash_table_insert(window_map, &self->window, self);
 502
 503     /* this has to happen after we're in the client_list */
 504     if (STRUT_EXISTS(self->strut))
 505         screen_update_areas();
 506
 507     /* update the list hints */
 508     client_set_list();
 509
 510     /* free the ObAppSettings shallow copy */
 511     g_free(settings);
 512
 513     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 514              window, self->frame->plate, self->class);
 515
 516     return;
 517 }
 518
 519
 520 ObClient *client_fake_manage(Window window)
 521 {
 522     ObClient *self;
 523     ObAppSettings *settings;
 524
 525     ob_debug("Pretend-managing window: %lx\n", window);
 526
 527     /* do this minimal stuff to figure out the client's decorations */
 528
 529     self = g_new0(ObClient, 1);
 530     self->window = window;
 531
 532     client_get_all(self, FALSE);
 533     /* per-app settings override stuff, and return the settings for other
 534        uses too. this returns a shallow copy that needs to be freed */
 535     settings = client_get_settings_state(self);
 536
 537     client_setup_decor_and_functions(self);
 538
 539     /* create the decoration frame for the client window and adjust its size */
 540     self->frame = frame_new(self);
 541     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 542
 543     /* free the ObAppSettings shallow copy */
 544     g_free(settings);
 545
 546     return self;
 547 }
 548
 549 void client_unmanage_all()
 550 {
 551     while (client_list != NULL)
 552         client_unmanage(client_list->data);
 553 }
 554
 555 void client_unmanage(ObClient *self)
 556 {
 557     guint j;
 558     GSList *it;
 559
 560     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 561              self->window, self->frame->plate,
 562              self->class, self->title ? self->title : "");
 563
 564     g_assert(self != NULL);
 565
 566     /* we dont want events no more. do this before hiding the frame so we
 567        don't generate more events */
 568     XSelectInput(ob_display, self->window, NoEventMask);
 569
 570     frame_hide(self->frame);
 571     /* flush to send the hide to the server quickly */
 572     XFlush(ob_display);
 573
 574     /* ignore enter events from the unmap so it doesnt mess with the
 575        focus */
 576     event_ignore_all_queued_enters();
 577
 578     mouse_grab_for_client(self, FALSE);
 579
 580     /* remove the window from our save set */
 581     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 582
 583     /* kill the property windows */
 584     propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
 585
 586     /* update the focus lists */
 587     focus_order_remove(self);
 588     if (client_focused(self)) {
 589         /* don't leave an invalid focus_client */
 590         focus_client = NULL;
 591     }
 592
 593     client_list = g_list_remove(client_list, self);
 594     stacking_remove(self);
 595     g_hash_table_remove(window_map, &self->window);
 596
 597     /* once the client is out of the list, update the struts to remove its
 598        influence */
 599     if (STRUT_EXISTS(self->strut))
 600         screen_update_areas();
 601
 602     client_call_notifies(self, client_destroy_notifies);
 603
 604     /* tell our parent(s) that we're gone */
 605     if (self->transient_for == OB_TRAN_GROUP) { /* transient of group */
 606         for (it = self->group->members; it; it = g_slist_next(it))
 607             if (it->data != self)
 608                 ((ObClient*)it->data)->transients =
 609                     g_slist_remove(((ObClient*)it->data)->transients,self);
 610     } else if (self->transient_for) {        /* transient of window */
 611         self->transient_for->transients =
 612             g_slist_remove(self->transient_for->transients, self);
 613     }
 614
 615     /* tell our transients that we're gone */
 616     for (it = self->transients; it; it = g_slist_next(it)) {
 617         if (((ObClient*)it->data)->transient_for != OB_TRAN_GROUP) {
 618             ((ObClient*)it->data)->transient_for = NULL;
 619             client_calc_layer(it->data);
 620         }
 621     }
 622
 623     /* remove from its group */
 624     if (self->group) {
 625         group_remove(self->group, self);
 626         self->group = NULL;
 627     }
 628
 629     /* restore the window's original geometry so it is not lost */
 630     {
 631         Rect a;
 632
 633         /* give the client its border back */
 634         client_toggle_border(self, TRUE);
 635
 636         a = self->area;
 637
 638         if (self->fullscreen)
 639             a = self->pre_fullscreen_area;
 640         else if (self->max_horz || self->max_vert) {
 641             if (self->max_horz) {
 642                 a.x = self->pre_max_area.x;
 643                 a.width = self->pre_max_area.width;
 644             }
 645             if (self->max_vert) {
 646                 a.y = self->pre_max_area.y;
 647                 a.height = self->pre_max_area.height;
 648             }
 649         }
 650
 651         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 652         self->decorations = 0; /* unmanaged windows have no decor */
 653
 654         client_move_resize(self, a.x, a.y, a.width, a.height);
 655     }
 656
 657     /* reparent the window out of the frame, and free the frame */
 658     frame_release_client(self->frame);
 659     frame_free(self->frame);
 660     self->frame = NULL;
 661
 662     if (ob_state() != OB_STATE_EXITING) {
 663         /* these values should not be persisted across a window
 664            unmapping/mapping */
 665         PROP_ERASE(self->window, net_wm_desktop);
 666         PROP_ERASE(self->window, net_wm_state);
 667         PROP_ERASE(self->window, wm_state);
 668     } else {
 669         /* if we're left in an unmapped state, the client wont be mapped.
 670            this is bad, since we will no longer be managing the window on
 671            restart */
 672         XMapWindow(ob_display, self->window);
 673     }
 674
 675     /* update the list hints */
 676     client_set_list();
 677
 678     ob_debug("Unmanaged window 0x%lx\n", self->window);
 679
 680     /* free all data allocated in the client struct */
 681     g_slist_free(self->transients);
 682     for (j = 0; j < self->nicons; ++j)
 683         g_free(self->icons[j].data);
 684     if (self->nicons > 0)
 685         g_free(self->icons);
 686     g_free(self->wm_command);
 687     g_free(self->title);
 688     g_free(self->icon_title);
 689     g_free(self->name);
 690     g_free(self->class);
 691     g_free(self->role);
 692     g_free(self->client_machine);
 693     g_free(self->sm_client_id);
 694     g_free(self);
 695 }
 696
 697 void client_fake_unmanage(ObClient *self)
 698 {
 699     /* this is all that got allocated to get the decorations */
 700
 701     frame_free(self->frame);
 702     g_free(self);
 703 }
 704
 705 /*! Returns a new structure containing the per-app settings for this client.
 706   The returned structure needs to be freed with g_free. */
 707 static ObAppSettings *client_get_settings_state(ObClient *self)
 708 {
 709     ObAppSettings *settings;
 710     GSList *it;
 711
 712     settings = config_create_app_settings();
 713
 714     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 715         ObAppSettings *app = it->data;
 716         gboolean match = TRUE;
 717
 718         g_assert(app->name != NULL || app->class != NULL);
 719
 720         /* we know that either name or class is not NULL so it will have to
 721            match to use the rule */
 722         if (app->name &&
 723             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 724             match = FALSE;
 725         if (app->class &&
 726             !g_pattern_match(app->class, strlen(self->class),self->class,NULL))
 727             match = FALSE;
 728         if (app->role &&
 729             !g_pattern_match(app->role, strlen(self->role), self->role, NULL))
 730             match = FALSE;
 731
 732         if (match) {
 733             ob_debug("Window matching: %s\n", app->name);
 734
 735             /* copy the settings to our struct, overriding the existing
 736                settings if they are not defaults */
 737             config_app_settings_copy_non_defaults(app, settings);
 738         }
 739     }
 740
 741     if (settings) {
 742         if (settings->shade != -1)
 743             self->shaded = !!settings->shade;
 744         if (settings->decor != -1)
 745             self->undecorated = !settings->decor;
 746         if (settings->iconic != -1)
 747             self->iconic = !!settings->iconic;
 748         if (settings->skip_pager != -1)
 749             self->skip_pager = !!settings->skip_pager;
 750         if (settings->skip_taskbar != -1)
 751             self->skip_taskbar = !!settings->skip_taskbar;
 752
 753         if (settings->max_vert != -1)
 754             self->max_vert = !!settings->max_vert;
 755         if (settings->max_horz != -1)
 756             self->max_horz = !!settings->max_horz;
 757
 758         if (settings->fullscreen != -1)
 759             self->fullscreen = !!settings->fullscreen;
 760
 761         if (settings->desktop) {
 762             if (settings->desktop == DESKTOP_ALL)
 763                 self->desktop = settings->desktop;
 764             else if (settings->desktop > 0 &&
 765                      settings->desktop <= screen_num_desktops)
 766                 self->desktop = settings->desktop - 1;
 767         }
 768
 769         if (settings->layer == -1) {
 770             self->below = TRUE;
 771             self->above = FALSE;
 772         }
 773         else if (settings->layer == 0) {
 774             self->below = FALSE;
 775             self->above = FALSE;
 776         }
 777         else if (settings->layer == 1) {
 778             self->below = FALSE;
 779             self->above = TRUE;
 780         }
 781     }
 782     return settings;
 783 }
 784
 785 static void client_restore_session_state(ObClient *self)
 786 {
 787     GList *it;
 788
 789     ob_debug_type(OB_DEBUG_SM,
 790                   "Restore session for client %s\n", self->title);
 791
 792     if (!(it = session_state_find(self))) {
 793         ob_debug_type(OB_DEBUG_SM,
 794                       "Session data not found for client %s\n", self->title);
 795         return;
 796     }
 797
 798     self->session = it->data;
 799
 800     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 801                   self->title);
 802
 803     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 804     self->positioned = USPosition;
 805     if (self->session->w > 0)
 806         self->area.width = self->session->w;
 807     if (self->session->h > 0)
 808         self->area.height = self->session->h;
 809     XResizeWindow(ob_display, self->window,
 810                   self->area.width, self->area.height);
 811
 812     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 813                      self->session->desktop :
 814                      MIN(screen_num_desktops - 1, self->session->desktop));
 815     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 816
 817     self->shaded = self->session->shaded;
 818     self->iconic = self->session->iconic;
 819     self->skip_pager = self->session->skip_pager;
 820     self->skip_taskbar = self->session->skip_taskbar;
 821     self->fullscreen = self->session->fullscreen;
 822     self->above = self->session->above;
 823     self->below = self->session->below;
 824     self->max_horz = self->session->max_horz;
 825     self->max_vert = self->session->max_vert;
 826     self->undecorated = self->session->undecorated;
 827 }
 828
 829 static gboolean client_restore_session_stacking(ObClient *self)
 830 {
 831     GList *it, *mypos;
 832
 833     if (!self->session) return FALSE;
 834
 835     mypos = g_list_find(session_saved_state, self->session);
 836     if (!mypos) return FALSE;
 837
 838     /* start above me and look for the first client */
 839     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 840         GList *cit;
 841
 842         for (cit = client_list; cit; cit = g_list_next(cit)) {
 843             ObClient *c = cit->data;
 844             /* found a client that was in the session, so go below it */
 845             if (c->session == it->data) {
 846                 stacking_below(CLIENT_AS_WINDOW(self),
 847                                CLIENT_AS_WINDOW(cit->data));
 848                 return TRUE;
 849             }
 850         }
 851     }
 852     return FALSE;
 853 }
 854
 855 void client_move_onscreen(ObClient *self, gboolean rude)
 856 {
 857     gint x = self->area.x;
 858     gint y = self->area.y;
 859     if (client_find_onscreen(self, &x, &y,
 860                              self->area.width,
 861                              self->area.height, rude)) {
 862         client_move(self, x, y);
 863     }
 864 }
 865
 866 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 867                               gboolean rude)
 868 {
 869     Rect *mon_a, *all_a;
 870     gint ox = *x, oy = *y;
 871     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 872     gint fw, fh;
 873     Rect desired;
 874
 875     RECT_SET(desired, *x, *y, w, h);
 876     all_a = screen_area(self->desktop);
 877     mon_a = screen_area_monitor(self->desktop, screen_find_monitor(&desired));
 878
 879     /* get where the frame would be */
 880     frame_client_gravity(self->frame, x, y, w, h);
 881
 882     /* get the requested size of the window with decorations */
 883     fw = self->frame->size.left + w + self->frame->size.right;
 884     fh = self->frame->size.top + h + self->frame->size.bottom;
 885
 886     /* This makes sure windows aren't entirely outside of the screen so you
 887        can't see them at all.
 888        It makes sure 10% of the window is on the screen at least. At don't let
 889        it move itself off the top of the screen, which would hide the titlebar
 890        on you. (The user can still do this if they want too, it's only limiting
 891        the application.
 892
 893        XXX watch for xinerama dead areas...
 894     */
 895     if (client_normal(self)) {
 896         if (!self->strut.right && *x + fw/10 >= all_a->x + all_a->width - 1)
 897             *x = all_a->x + all_a->width - fw/10;
 898         if (!self->strut.bottom && *y + fh/10 >= all_a->y + all_a->height - 1)
 899             *y = all_a->y + all_a->height - fh/10;
 900         if (!self->strut.left && *x + fw*9/10 - 1 < all_a->x)
 901             *x = all_a->x - fw*9/10;
 902         if (!self->strut.top && *y + fh*9/10 - 1 < all_a->y)
 903             *y = all_a->y - fw*9/10;
 904     }
 905
 906     /* If rudeness wasn't requested, then figure out of the client is currently
 907        entirely on the screen. If it is, and the position isn't changing by
 908        request, and it is enlarging, then be rude even though it wasn't
 909        requested */
 910     if (!rude) {
 911         Point oldtl, oldtr, oldbl, oldbr;
 912         Point newtl, newtr, newbl, newbr;
 913         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
 914
 915         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
 916         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
 917                   self->frame->area.y + self->frame->area.height - 1);
 918         POINT_SET(oldtr, oldbr.x, oldtl.y);
 919         POINT_SET(oldbl, oldtl.x, oldbr.y);
 920
 921         POINT_SET(newtl, *x, *y);
 922         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
 923         POINT_SET(newtr, newbr.x, newtl.y);
 924         POINT_SET(newbl, newtl.x, newbr.y);
 925
 926         /* is it moving or just resizing from some corner? */
 927         stationary_l = oldtl.x == oldtl.x;
 928         stationary_r = oldtr.x == oldtr.x;
 929         stationary_t = oldtl.y == oldtl.y;
 930         stationary_b = oldbl.y == oldbl.y;
 931
 932         /* if left edge is growing and didnt move right edge */
 933         if (stationary_r && newtl.x < oldtl.x)
 934             rudel = TRUE;
 935         /* if right edge is growing and didnt move left edge */
 936         if (stationary_l && newtr.x > oldtr.x)
 937             ruder = TRUE;
 938         /* if top edge is growing and didnt move bottom edge */
 939         if (stationary_b && newtl.y < oldtl.y)
 940             rudet = TRUE;
 941         /* if bottom edge is growing and didnt move top edge */
 942         if (stationary_t && newbl.y > oldbl.y)
 943             rudeb = TRUE;
 944     }
 945
 946     /* This here doesn't let windows even a pixel outside the struts/screen.
 947      * When called from client_manage, programs placing themselves are
 948      * forced completely onscreen, while things like
 949      * xterm -geometry resolution-width/2 will work fine. Trying to
 950      * place it completely offscreen will be handled in the above code.
 951      * Sorry for this confused comment, i am tired. */
 952     if (fw <= mon_a->width) {
 953         if (rudel && !self->strut.left && *x < mon_a->x) *x = mon_a->x;
 954         if (ruder && !self->strut.right && *x + fw > mon_a->x + mon_a->width)
 955             *x = mon_a->x + mon_a->width - fw;
 956     }
 957     if (fh <= mon_a->height) {
 958         if (rudet && !self->strut.top && *y < mon_a->y) *y = mon_a->y;
 959         if (rudeb && !self->strut.bottom && *y + fh > mon_a->y + mon_a->height)
 960             *y = mon_a->y + mon_a->height - fh;
 961     }
 962
 963     /* get where the client should be */
 964     frame_frame_gravity(self->frame, x, y, w, h);
 965
 966     return ox != *x || oy != *y;
 967 }
 968
 969 static void client_toggle_border(ObClient *self, gboolean show)
 970 {
 971     /* adjust our idea of where the client is, based on its border. When the
 972        border is removed, the client should now be considered to be in a
 973        different position.
 974        when re-adding the border to the client, the same operation needs to be
 975        reversed. */
 976     gint oldx = self->area.x, oldy = self->area.y;
 977     gint x = oldx, y = oldy;
 978     switch(self->gravity) {
 979     default:
 980     case NorthWestGravity:
 981     case WestGravity:
 982     case SouthWestGravity:
 983         break;
 984     case NorthEastGravity:
 985     case EastGravity:
 986     case SouthEastGravity:
 987         if (show) x -= self->border_width * 2;
 988         else      x += self->border_width * 2;
 989         break;
 990     case NorthGravity:
 991     case SouthGravity:
 992     case CenterGravity:
 993     case ForgetGravity:
 994     case StaticGravity:
 995         if (show) x -= self->border_width;
 996         else      x += self->border_width;
 997         break;
 998     }
 999     switch(self->gravity) {
1000     default:
1001     case NorthWestGravity:
1002     case NorthGravity:
1003     case NorthEastGravity:
1004         break;
1005     case SouthWestGravity:
1006     case SouthGravity:
1007     case SouthEastGravity:
1008         if (show) y -= self->border_width * 2;
1009         else      y += self->border_width * 2;
1010         break;
1011     case WestGravity:
1012     case EastGravity:
1013     case CenterGravity:
1014     case ForgetGravity:
1015     case StaticGravity:
1016         if (show) y -= self->border_width;
1017         else      y += self->border_width;
1018         break;
1019     }
1020     self->area.x = x;
1021     self->area.y = y;
1022
1023     if (show) {
1024         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
1025
1026         /* set border_width to 0 because there is no border to add into
1027            calculations anymore */
1028         self->border_width = 0;
1029     } else
1030         XSetWindowBorderWidth(ob_display, self->window, 0);
1031 }
1032
1033
1034 static void client_get_all(ObClient *self, gboolean real)
1035 {
1036     /* this is needed for the frame to set itself up */
1037     client_get_area(self);
1038
1039     /* these things can change the decor and functions of the window */
1040
1041     client_get_mwm_hints(self);
1042     /* this can change the mwmhints for special cases */
1043     client_get_type_and_transientness(self);
1044     client_get_state(self);
1045     client_update_normal_hints(self);
1046
1047     /* get the session related properties, these can change decorations
1048        from per-app settings */
1049     client_get_session_ids(self);
1050
1051     /* now we got everything that can affect the decorations */
1052     if (!real)
1053         return;
1054
1055     /* get this early so we have it for debugging */
1056     client_update_title(self);
1057
1058     client_update_protocols(self);
1059
1060     client_update_wmhints(self);
1061     /* this may have already been called from client_update_wmhints */
1062     if (self->transient_for == NULL)
1063         client_update_transient_for(self);
1064
1065     client_get_startup_id(self);
1066     client_get_desktop(self);/* uses transient data/group/startup id if a
1067                                 desktop is not specified */
1068     client_get_shaped(self);
1069
1070     {
1071         /* a couple type-based defaults for new windows */
1072
1073         /* this makes sure that these windows appear on all desktops */
1074         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1075             self->desktop = DESKTOP_ALL;
1076     }
1077
1078 #ifdef SYNC
1079     client_update_sync_request_counter(self);
1080 #endif
1081
1082     client_get_colormap(self);
1083     client_update_strut(self);
1084     client_update_icons(self);
1085     client_update_user_time_window(self);
1086     if (!self->user_time_window) /* check if this would have been called */
1087         client_update_user_time(self);
1088     client_update_icon_geometry(self);
1089 }
1090
1091 static void client_get_startup_id(ObClient *self)
1092 {
1093     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1094         if (self->group)
1095             PROP_GETS(self->group->leader,
1096                       net_startup_id, utf8, &self->startup_id);
1097 }
1098
1099 static void client_get_area(ObClient *self)
1100 {
1101     XWindowAttributes wattrib;
1102     Status ret;
1103
1104     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1105     g_assert(ret != BadWindow);
1106
1107     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1108     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1109     self->border_width = wattrib.border_width;
1110
1111     ob_debug("client area: %d %d  %d %d\n", wattrib.x, wattrib.y,
1112              wattrib.width, wattrib.height);
1113 }
1114
1115 static void client_get_desktop(ObClient *self)
1116 {
1117     guint32 d = screen_num_desktops; /* an always-invalid value */
1118
1119     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1120         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1121             self->desktop = screen_num_desktops - 1;
1122         else
1123             self->desktop = d;
1124     } else {
1125         gboolean trdesk = FALSE;
1126
1127         if (self->transient_for) {
1128             if (self->transient_for != OB_TRAN_GROUP) {
1129                 self->desktop = self->transient_for->desktop;
1130                 trdesk = TRUE;
1131             } else {
1132                 GSList *it;
1133
1134                 for (it = self->group->members; it; it = g_slist_next(it))
1135                     if (it->data != self &&
1136                         !((ObClient*)it->data)->transient_for) {
1137                         self->desktop = ((ObClient*)it->data)->desktop;
1138                         trdesk = TRUE;
1139                         break;
1140                     }
1141             }
1142         }
1143         if (!trdesk) {
1144             /* try get from the startup-notification protocol */
1145             if (sn_get_desktop(self->startup_id, &self->desktop)) {
1146                 if (self->desktop >= screen_num_desktops &&
1147                     self->desktop != DESKTOP_ALL)
1148                     self->desktop = screen_num_desktops - 1;
1149             } else
1150                 /* defaults to the current desktop */
1151                 self->desktop = screen_desktop;
1152         }
1153     }
1154 }
1155
1156 static void client_get_state(ObClient *self)
1157 {
1158     guint32 *state;
1159     guint num;
1160
1161     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1162         gulong i;
1163         for (i = 0; i < num; ++i) {
1164             if (state[i] == prop_atoms.net_wm_state_modal)
1165                 self->modal = TRUE;
1166             else if (state[i] == prop_atoms.net_wm_state_shaded)
1167                 self->shaded = TRUE;
1168             else if (state[i] == prop_atoms.net_wm_state_hidden)
1169                 self->iconic = TRUE;
1170             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1171                 self->skip_taskbar = TRUE;
1172             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1173                 self->skip_pager = TRUE;
1174             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1175                 self->fullscreen = TRUE;
1176             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1177                 self->max_vert = TRUE;
1178             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1179                 self->max_horz = TRUE;
1180             else if (state[i] == prop_atoms.net_wm_state_above)
1181                 self->above = TRUE;
1182             else if (state[i] == prop_atoms.net_wm_state_below)
1183                 self->below = TRUE;
1184             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1185                 self->demands_attention = TRUE;
1186             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1187                 self->undecorated = TRUE;
1188         }
1189
1190         g_free(state);
1191     }
1192 }
1193
1194 static void client_get_shaped(ObClient *self)
1195 {
1196     self->shaped = FALSE;
1197 #ifdef   SHAPE
1198     if (extensions_shape) {
1199         gint foo;
1200         guint ufoo;
1201         gint s;
1202
1203         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1204
1205         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1206                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1207                            &ufoo);
1208         self->shaped = (s != 0);
1209     }
1210 #endif
1211 }
1212
1213 void client_update_transient_for(ObClient *self)
1214 {
1215     Window t = None;
1216     ObClient *target = NULL;
1217
1218     if (XGetTransientForHint(ob_display, self->window, &t)) {
1219         if (t != self->window) { /* cant be transient to itself! */
1220             target = g_hash_table_lookup(window_map, &t);
1221             /* if this happens then we need to check for it*/
1222             g_assert(target != self);
1223             if (target && !WINDOW_IS_CLIENT(target)) {
1224                 /* this can happen when a dialog is a child of
1225                    a dockapp, for example */
1226                 target = NULL;
1227             }
1228
1229             /* THIS IS SO ANNOYING ! ! ! ! Let me explain.... have a seat..
1230
1231                Setting the transient_for to Root is actually illegal, however
1232                applications from time have done this to specify transient for
1233                their group.
1234
1235                Now you can do that by being a TYPE_DIALOG and not setting
1236                the transient_for hint at all on your window. But people still
1237                use Root, and Kwin is very strange in this regard.
1238
1239                KWin 3.0 will not consider windows with transient_for set to
1240                Root as transient for their group *UNLESS* they are also modal.
1241                In that case, it will make them transient for the group. This
1242                leads to all sorts of weird behavior from KDE apps which are
1243                only tested in KWin. I'd like to follow their behavior just to
1244                make this work right with KDE stuff, but that seems wrong.
1245             */
1246             if (!target && self->group) {
1247                 /* not transient to a client, see if it is transient for a
1248                    group */
1249                 if (t == RootWindow(ob_display, ob_screen)) {
1250                     /* window is a transient for its group! */
1251                     target = OB_TRAN_GROUP;
1252                 }
1253             }
1254         }
1255     } else if (self->transient && self->group)
1256         target = OB_TRAN_GROUP;
1257
1258     client_update_transient_tree(self, self->group, self->group,
1259                                  self->transient_for, target);
1260     self->transient_for = target;
1261
1262 }
1263
1264 static void client_update_transient_tree(ObClient *self,
1265                                          ObGroup *oldgroup, ObGroup *newgroup,
1266                                          ObClient* oldparent,
1267                                          ObClient *newparent)
1268 {
1269     GSList *it, *next;
1270     ObClient *c;
1271
1272     /* * *
1273       Group transient windows are not allowed to have other group
1274       transient windows as their children.
1275       * * */
1276
1277
1278     /* No change has occured */
1279     if (oldgroup == newgroup && 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 (oldparent != newparent &&
1292         newparent != NULL && newparent != OB_TRAN_GROUP &&
1293         newgroup != NULL && newgroup == oldgroup)
1294     {
1295         ObClient *look = newparent;
1296         do {
1297             self->transients = g_slist_remove(self->transients, look);
1298             look = look->transient_for;
1299         } while (look != NULL && look != OB_TRAN_GROUP);
1300     }
1301
1302
1303     /* If the group changed, or if we are just becoming transient for the
1304        group, then we need to remove any old group transient windows
1305        from our children. But if we were already transient for the group, then
1306        other group transients are not our children. */
1307     if ((oldgroup != newgroup ||
1308          (newparent == OB_TRAN_GROUP && oldparent != newparent)) &&
1309         oldgroup != NULL && oldparent != OB_TRAN_GROUP)
1310     {
1311         for (it = self->transients; it; it = next) {
1312             next = g_slist_next(it);
1313             c = it->data;
1314             if (c->group == oldgroup)
1315                 self->transients = g_slist_delete_link(self->transients, it);
1316         }
1317     }
1318
1319     /* If we used to be transient for a group and now we are not, or we're
1320        transient for a new group, then we need to remove ourselves from all
1321        our ex-parents */
1322     if (oldparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1323                                        oldparent != newparent))
1324     {
1325         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1326             c = it->data;
1327             if (c != self && (!c->transient_for ||
1328                               c->transient_for != OB_TRAN_GROUP))
1329                 c->transients = g_slist_remove(c->transients, self);
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 != NULL && oldparent != OB_TRAN_GROUP &&
1335              oldparent != newparent)
1336         oldparent->transients = g_slist_remove(oldparent->transients, self);
1337
1338
1339     /** Re-add the client to the transient tree wherever it has changed **/
1340
1341     /* If we're now transient for a group and we weren't transient for it
1342        before then we need to add ourselves to all our new parents */
1343     if (newparent == OB_TRAN_GROUP && (oldgroup != newgroup ||
1344                                        oldparent != newparent))
1345     {
1346         for (it = oldgroup->members; it; it = g_slist_next(it)) {
1347             c = it->data;
1348             if (c != self && (!c->transient_for ||
1349                               c->transient_for != OB_TRAN_GROUP))
1350                 c->transients = g_slist_prepend(c->transients, self);
1351         }
1352     }
1353     /* If we are now transient for a single window which we weren't before,
1354        we need to add ourselves to its children
1355
1356        WARNING: Cyclical transient ness is possible if two windows are
1357        transient for eachother.
1358     */
1359     else if (newparent != NULL && newparent != OB_TRAN_GROUP &&
1360              newparent != oldparent &&
1361              /* don't make ourself its child if it is already our child */
1362              !client_is_direct_child(self, newparent))
1363         newparent->transients = g_slist_prepend(newparent->transients, self);
1364
1365     /* If the group changed then we need to add any new group transient
1366        windows to our children. But if we're transient for the group, then
1367        other group transients are not our children.
1368
1369        WARNING: Cyclical transient-ness is possible. For e.g. if:
1370        A is transient for the group
1371        B is transient for A
1372        C is transient for B
1373        A can't be transient for C or we have a cycle
1374     */
1375     if (oldgroup != newgroup && newgroup != NULL &&
1376         newparent != OB_TRAN_GROUP)
1377     {
1378         for (it = newgroup->members; it; it = g_slist_next(it)) {
1379             c = it->data;
1380             if (c != self && c->transient_for == OB_TRAN_GROUP &&
1381                 /* Don't make it our child if it is already our parent */
1382                 !client_is_direct_child(c, self))
1383             {
1384                 self->transients = g_slist_prepend(self->transients, c);
1385             }
1386         }
1387     }
1388 }
1389
1390 static void client_get_mwm_hints(ObClient *self)
1391 {
1392     guint num;
1393     guint32 *hints;
1394
1395     self->mwmhints.flags = 0; /* default to none */
1396
1397     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1398                     &hints, &num)) {
1399         if (num >= OB_MWM_ELEMENTS) {
1400             self->mwmhints.flags = hints[0];
1401             self->mwmhints.functions = hints[1];
1402             self->mwmhints.decorations = hints[2];
1403         }
1404         g_free(hints);
1405     }
1406 }
1407
1408 void client_get_type_and_transientness(ObClient *self)
1409 {
1410     guint num, i;
1411     guint32 *val;
1412     Window t;
1413
1414     self->type = -1;
1415     self->transient = FALSE;
1416
1417     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1418         /* use the first value that we know about in the array */
1419         for (i = 0; i < num; ++i) {
1420             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1421                 self->type = OB_CLIENT_TYPE_DESKTOP;
1422             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1423                 self->type = OB_CLIENT_TYPE_DOCK;
1424             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1425                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1426             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1427                 self->type = OB_CLIENT_TYPE_MENU;
1428             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1429                 self->type = OB_CLIENT_TYPE_UTILITY;
1430             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1431                 self->type = OB_CLIENT_TYPE_SPLASH;
1432             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1433                 self->type = OB_CLIENT_TYPE_DIALOG;
1434             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1435                 self->type = OB_CLIENT_TYPE_NORMAL;
1436             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1437                 /* prevent this window from getting any decor or
1438                    functionality */
1439                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1440                                          OB_MWM_FLAG_DECORATIONS);
1441                 self->mwmhints.decorations = 0;
1442                 self->mwmhints.functions = 0;
1443             }
1444             if (self->type != (ObClientType) -1)
1445                 break; /* grab the first legit type */
1446         }
1447         g_free(val);
1448     }
1449
1450     if (XGetTransientForHint(ob_display, self->window, &t))
1451         self->transient = TRUE;
1452
1453     if (self->type == (ObClientType) -1) {
1454         /*the window type hint was not set, which means we either classify
1455           ourself as a normal window or a dialog, depending on if we are a
1456           transient. */
1457         if (self->transient)
1458             self->type = OB_CLIENT_TYPE_DIALOG;
1459         else
1460             self->type = OB_CLIENT_TYPE_NORMAL;
1461     }
1462
1463     /* then, based on our type, we can update our transientness.. */
1464     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1465         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1466         self->type == OB_CLIENT_TYPE_MENU ||
1467         self->type == OB_CLIENT_TYPE_UTILITY)
1468     {
1469         self->transient = TRUE;
1470     }
1471 }
1472
1473 void client_update_protocols(ObClient *self)
1474 {
1475     guint32 *proto;
1476     guint num_return, i;
1477
1478     self->focus_notify = FALSE;
1479     self->delete_window = FALSE;
1480
1481     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1482         for (i = 0; i < num_return; ++i) {
1483             if (proto[i] == prop_atoms.wm_delete_window)
1484                 /* this means we can request the window to close */
1485                 self->delete_window = TRUE;
1486             else if (proto[i] == prop_atoms.wm_take_focus)
1487                 /* if this protocol is requested, then the window will be
1488                    notified whenever we want it to receive focus */
1489                 self->focus_notify = TRUE;
1490 #ifdef SYNC
1491             else if (proto[i] == prop_atoms.net_wm_sync_request)
1492                 /* if this protocol is requested, then resizing the
1493                    window will be synchronized between the frame and the
1494                    client */
1495                 self->sync_request = TRUE;
1496 #endif
1497         }
1498         g_free(proto);
1499     }
1500 }
1501
1502 #ifdef SYNC
1503 void client_update_sync_request_counter(ObClient *self)
1504 {
1505     guint32 i;
1506
1507     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1508         self->sync_counter = i;
1509     } else
1510         self->sync_counter = None;
1511 }
1512 #endif
1513
1514 void client_get_colormap(ObClient *self)
1515 {
1516     XWindowAttributes wa;
1517
1518     if (XGetWindowAttributes(ob_display, self->window, &wa))
1519         client_update_colormap(self, wa.colormap);
1520 }
1521
1522 void client_update_colormap(ObClient *self, Colormap colormap)
1523 {
1524     self->colormap = colormap;
1525 }
1526
1527 void client_update_normal_hints(ObClient *self)
1528 {
1529     XSizeHints size;
1530     glong ret;
1531     gint oldgravity = self->gravity;
1532
1533     /* defaults */
1534     self->min_ratio = 0.0f;
1535     self->max_ratio = 0.0f;
1536     SIZE_SET(self->size_inc, 1, 1);
1537     SIZE_SET(self->base_size, 0, 0);
1538     SIZE_SET(self->min_size, 0, 0);
1539     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1540
1541     /* get the hints from the window */
1542     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1543         /* normal windows can't request placement! har har
1544         if (!client_normal(self))
1545         */
1546         self->positioned = (size.flags & (PPosition|USPosition));
1547
1548         if (size.flags & PWinGravity) {
1549             self->gravity = size.win_gravity;
1550
1551             /* if the client has a frame, i.e. has already been mapped and
1552                is changing its gravity */
1553             if (self->frame && self->gravity != oldgravity) {
1554                 /* move our idea of the client's position based on its new
1555                    gravity */
1556                 client_convert_gravity(self, oldgravity,
1557                                        &self->area.x, &self->area.y,
1558                                        self->area.width, self->area.height);
1559             }
1560         }
1561
1562         if (size.flags & PAspect) {
1563             if (size.min_aspect.y)
1564                 self->min_ratio =
1565                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1566             if (size.max_aspect.y)
1567                 self->max_ratio =
1568                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1569         }
1570
1571         if (size.flags & PMinSize)
1572             SIZE_SET(self->min_size, size.min_width, size.min_height);
1573
1574         if (size.flags & PMaxSize)
1575             SIZE_SET(self->max_size, size.max_width, size.max_height);
1576
1577         if (size.flags & PBaseSize)
1578             SIZE_SET(self->base_size, size.base_width, size.base_height);
1579
1580         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1581             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1582     }
1583 }
1584
1585 void client_setup_decor_and_functions(ObClient *self)
1586 {
1587     /* start with everything (cept fullscreen) */
1588     self->decorations =
1589         (OB_FRAME_DECOR_TITLEBAR |
1590          OB_FRAME_DECOR_HANDLE |
1591          OB_FRAME_DECOR_GRIPS |
1592          OB_FRAME_DECOR_BORDER |
1593          OB_FRAME_DECOR_ICON |
1594          OB_FRAME_DECOR_ALLDESKTOPS |
1595          OB_FRAME_DECOR_ICONIFY |
1596          OB_FRAME_DECOR_MAXIMIZE |
1597          OB_FRAME_DECOR_SHADE |
1598          OB_FRAME_DECOR_CLOSE);
1599     self->functions =
1600         (OB_CLIENT_FUNC_RESIZE |
1601          OB_CLIENT_FUNC_MOVE |
1602          OB_CLIENT_FUNC_ICONIFY |
1603          OB_CLIENT_FUNC_MAXIMIZE |
1604          OB_CLIENT_FUNC_SHADE |
1605          OB_CLIENT_FUNC_CLOSE |
1606          OB_CLIENT_FUNC_BELOW |
1607          OB_CLIENT_FUNC_ABOVE |
1608          OB_CLIENT_FUNC_UNDECORATE);
1609
1610     if (!(self->min_size.width < self->max_size.width ||
1611           self->min_size.height < self->max_size.height))
1612         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1613
1614     switch (self->type) {
1615     case OB_CLIENT_TYPE_NORMAL:
1616         /* normal windows retain all of the possible decorations and
1617            functionality, and are the only windows that you can fullscreen */
1618         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1619         break;
1620
1621     case OB_CLIENT_TYPE_DIALOG:
1622     case OB_CLIENT_TYPE_UTILITY:
1623         /* these windows cannot be maximized */
1624         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1625         break;
1626
1627     case OB_CLIENT_TYPE_MENU:
1628     case OB_CLIENT_TYPE_TOOLBAR:
1629         /* these windows get less functionality */
1630         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY | OB_CLIENT_FUNC_RESIZE);
1631         break;
1632
1633     case OB_CLIENT_TYPE_SPLASH:
1634         /* these don't get get any decorations, and the only thing you can
1635            do with them is move them */
1636         self->decorations = 0;
1637         self->functions = OB_CLIENT_FUNC_MOVE;
1638
1639     case OB_CLIENT_TYPE_DESKTOP:
1640         /* these windows are not manipulated by the window manager */
1641         self->decorations = 0;
1642         self->functions = 0;
1643
1644     case OB_CLIENT_TYPE_DOCK:
1645         /* these windows are not manipulated by the window manager, but they
1646            can set below layer which has a special meaning */
1647         self->decorations = 0;
1648         self->functions = OB_CLIENT_FUNC_BELOW;
1649         break;
1650     }
1651
1652     /* Mwm Hints are applied subtractively to what has already been chosen for
1653        decor and functionality */
1654     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1655         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1656             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1657                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1658             {
1659                 /* if the mwm hints request no handle or title, then all
1660                    decorations are disabled, but keep the border if that's
1661                    specified */
1662                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1663                     self->decorations = OB_FRAME_DECOR_BORDER;
1664                 else
1665                     self->decorations = 0;
1666             }
1667         }
1668     }
1669
1670     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1671         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1672             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1673                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1674             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1675                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1676             /* dont let mwm hints kill any buttons
1677                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1678                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1679                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1680                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1681             */
1682             /* dont let mwm hints kill the close button
1683                if (! (self->mwmhints.functions & MwmFunc_Close))
1684                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1685         }
1686     }
1687
1688     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1689         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1690     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1691         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1692     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1693         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1694
1695     /* can't maximize without moving/resizing */
1696     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1697           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1698           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1699         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1700         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1701     }
1702
1703     /* kill the handle on fully maxed windows */
1704     if (self->max_vert && self->max_horz)
1705         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1706
1707     /* If there are no decorations to remove, don't allow the user to try
1708        toggle the state */
1709     if (self->decorations == 0)
1710         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1711
1712     /* finally, the user can have requested no decorations, which overrides
1713        everything (but doesnt give it a border if it doesnt have one) */
1714     if (self->undecorated) {
1715         if (config_theme_keepborder)
1716             self->decorations &= OB_FRAME_DECOR_BORDER;
1717         else
1718             self->decorations = 0;
1719     }
1720
1721     /* if we don't have a titlebar, then we cannot shade! */
1722     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1723         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1724
1725     /* now we need to check against rules for the client's current state */
1726     if (self->fullscreen) {
1727         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1728                             OB_CLIENT_FUNC_FULLSCREEN |
1729                             OB_CLIENT_FUNC_ICONIFY);
1730         self->decorations = 0;
1731     }
1732
1733     client_change_allowed_actions(self);
1734
1735     if (self->frame) {
1736         /* adjust the client's decorations, etc. */
1737         client_reconfigure(self);
1738     }
1739 }
1740
1741 static void client_change_allowed_actions(ObClient *self)
1742 {
1743     gulong actions[12];
1744     gint num = 0;
1745
1746     /* desktop windows are kept on all desktops */
1747     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1748         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1749
1750     if (self->functions & OB_CLIENT_FUNC_SHADE)
1751         actions[num++] = prop_atoms.net_wm_action_shade;
1752     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1753         actions[num++] = prop_atoms.net_wm_action_close;
1754     if (self->functions & OB_CLIENT_FUNC_MOVE)
1755         actions[num++] = prop_atoms.net_wm_action_move;
1756     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1757         actions[num++] = prop_atoms.net_wm_action_minimize;
1758     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1759         actions[num++] = prop_atoms.net_wm_action_resize;
1760     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1761         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1762     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1763         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1764         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1765     }
1766     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1767         actions[num++] = prop_atoms.net_wm_action_above;
1768     if (self->functions & OB_CLIENT_FUNC_BELOW)
1769         actions[num++] = prop_atoms.net_wm_action_below;
1770     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1771         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1772
1773     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1774
1775     /* make sure the window isn't breaking any rules now */
1776
1777     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1778         if (self->frame) client_shade(self, FALSE);
1779         else self->shaded = FALSE;
1780     }
1781     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY) && self->iconic) {
1782         if (self->frame) client_iconify(self, FALSE, TRUE, FALSE);
1783         else self->iconic = FALSE;
1784     }
1785     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1786         if (self->frame) client_fullscreen(self, FALSE);
1787         else self->fullscreen = FALSE;
1788     }
1789     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1790                                                          self->max_vert)) {
1791         if (self->frame) client_maximize(self, FALSE, 0);
1792         else self->max_vert = self->max_horz = FALSE;
1793     }
1794 }
1795
1796 void client_reconfigure(ObClient *self)
1797 {
1798     /* by making this pass FALSE for user, we avoid the emacs event storm where
1799        every configurenotify causes an update in its normal hints, i think this
1800        is generally what we want anyways... */
1801     client_configure(self, self->area.x, self->area.y,
1802                      self->area.width, self->area.height, FALSE, TRUE);
1803 }
1804
1805 void client_update_wmhints(ObClient *self)
1806 {
1807     XWMHints *hints;
1808
1809     /* assume a window takes input if it doesnt specify */
1810     self->can_focus = TRUE;
1811
1812     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1813         gboolean ur;
1814
1815         if (hints->flags & InputHint)
1816             self->can_focus = hints->input;
1817
1818         /* only do this when first managing the window *AND* when we aren't
1819            starting up! */
1820         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1821             if (hints->flags & StateHint)
1822                 self->iconic = hints->initial_state == IconicState;
1823
1824         ur = self->urgent;
1825         self->urgent = (hints->flags & XUrgencyHint);
1826         if (self->urgent && !ur)
1827             client_hilite(self, TRUE);
1828         else if (!self->urgent && ur && self->demands_attention)
1829             client_hilite(self, FALSE);
1830
1831         if (!(hints->flags & WindowGroupHint))
1832             hints->window_group = None;
1833
1834         /* did the group state change? */
1835         if (hints->window_group !=
1836             (self->group ? self->group->leader : None))
1837         {
1838             ObGroup *oldgroup = self->group;
1839
1840             /* remove from the old group if there was one */
1841             if (self->group != NULL) {
1842                 group_remove(self->group, self);
1843                 self->group = NULL;
1844             }
1845
1846             /* add ourself to the group if we have one */
1847             if (hints->window_group != None) {
1848                 self->group = group_add(hints->window_group, self);
1849             }
1850
1851             /* Put ourselves into the new group's transient tree, and remove
1852                ourselves from the old group's */
1853             client_update_transient_tree(self, oldgroup, self->group,
1854                                          self->transient_for,
1855                                          self->transient_for);
1856
1857             /* Lastly, being in a group, or not, can change if the window is
1858                transient for anything.
1859
1860                The logic for this is:
1861                self->transient = TRUE always if the window wants to be
1862                transient for something, even if transient_for was NULL because
1863                it wasn't in a group before.
1864
1865                If transient_for was NULL and oldgroup was NULL we can assume
1866                that when we add the new group, it will become transient for
1867                something.
1868
1869                If transient_for was OB_TRAN_GROUP, then it must have already
1870                had a group. If it is getting a new group, the above call to
1871                client_update_transient_tree has already taken care of
1872                everything ! If it is losing all group status then it will
1873                no longer be transient for anything and that needs to be
1874                updated.
1875             */
1876             if (self->transient &&
1877                 ((self->transient_for == NULL && oldgroup == NULL) ||
1878                  (self->transient_for == OB_TRAN_GROUP && !self->group)))
1879                 client_update_transient_for(self);
1880         }
1881
1882         /* the WM_HINTS can contain an icon */
1883         client_update_icons(self);
1884
1885         XFree(hints);
1886     }
1887 }
1888
1889 void client_update_title(ObClient *self)
1890 {
1891     gchar *data = NULL;
1892     gchar *visible = NULL;
1893
1894     g_free(self->title);
1895
1896     /* try netwm */
1897     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1898         /* try old x stuff */
1899         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1900               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1901             if (self->transient) {
1902                 /*
1903                   GNOME alert windows are not given titles:
1904                   http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1905                 */
1906                 data = g_strdup("");
1907             } else
1908                 data = g_strdup("Unnamed Window");
1909         }
1910     }
1911
1912     if (self->client_machine) {
1913         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1914         g_free(data);
1915     } else
1916         visible = data;
1917
1918     PROP_SETS(self->window, net_wm_visible_name, visible);
1919     self->title = visible;
1920
1921     if (self->frame)
1922         frame_adjust_title(self->frame);
1923
1924     /* update the icon title */
1925     data = NULL;
1926     g_free(self->icon_title);
1927
1928     /* try netwm */
1929     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1930         /* try old x stuff */
1931         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
1932               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
1933             data = g_strdup(self->title);
1934
1935     PROP_SETS(self->window, net_wm_visible_icon_name, data);
1936     self->icon_title = data;
1937 }
1938
1939 void client_update_strut(ObClient *self)
1940 {
1941     guint num;
1942     guint32 *data;
1943     gboolean got = FALSE;
1944     StrutPartial strut;
1945
1946     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
1947                     &data, &num)) {
1948         if (num == 12) {
1949             got = TRUE;
1950             STRUT_PARTIAL_SET(strut,
1951                               data[0], data[2], data[1], data[3],
1952                               data[4], data[5], data[8], data[9],
1953                               data[6], data[7], data[10], data[11]);
1954         }
1955         g_free(data);
1956     }
1957
1958     if (!got &&
1959         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1960         if (num == 4) {
1961             const Rect *a;
1962
1963             got = TRUE;
1964
1965             /* use the screen's width/height */
1966             a = screen_physical_area();
1967
1968             STRUT_PARTIAL_SET(strut,
1969                               data[0], data[2], data[1], data[3],
1970                               a->y, a->y + a->height - 1,
1971                               a->x, a->x + a->width - 1,
1972                               a->y, a->y + a->height - 1,
1973                               a->x, a->x + a->width - 1);
1974         }
1975         g_free(data);
1976     }
1977
1978     if (!got)
1979         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
1980                           0, 0, 0, 0, 0, 0, 0, 0);
1981
1982     if (!STRUT_EQUAL(strut, self->strut)) {
1983         self->strut = strut;
1984
1985         /* updating here is pointless while we're being mapped cuz we're not in
1986            the client list yet */
1987         if (self->frame)
1988             screen_update_areas();
1989     }
1990 }
1991
1992 void client_update_icons(ObClient *self)
1993 {
1994     guint num;
1995     guint32 *data;
1996     guint w, h, i, j;
1997
1998     for (i = 0; i < self->nicons; ++i)
1999         g_free(self->icons[i].data);
2000     if (self->nicons > 0)
2001         g_free(self->icons);
2002     self->nicons = 0;
2003
2004     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2005         /* figure out how many valid icons are in here */
2006         i = 0;
2007         while (num - i > 2) {
2008             w = data[i++];
2009             h = data[i++];
2010             i += w * h;
2011             if (i > num || w*h == 0) break;
2012             ++self->nicons;
2013         }
2014
2015         self->icons = g_new(ObClientIcon, self->nicons);
2016
2017         /* store the icons */
2018         i = 0;
2019         for (j = 0; j < self->nicons; ++j) {
2020             guint x, y, t;
2021
2022             w = self->icons[j].width = data[i++];
2023             h = self->icons[j].height = data[i++];
2024
2025             if (w*h == 0) continue;
2026
2027             self->icons[j].data = g_new(RrPixel32, w * h);
2028             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2029                 if (x >= w) {
2030                     x = 0;
2031                     ++y;
2032                 }
2033                 self->icons[j].data[t] =
2034                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2035                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2036                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2037                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2038             }
2039             g_assert(i <= num);
2040         }
2041
2042         g_free(data);
2043     } else {
2044         XWMHints *hints;
2045
2046         if ((hints = XGetWMHints(ob_display, self->window))) {
2047             if (hints->flags & IconPixmapHint) {
2048                 self->nicons++;
2049                 self->icons = g_new(ObClientIcon, self->nicons);
2050                 xerror_set_ignore(TRUE);
2051                 if (!RrPixmapToRGBA(ob_rr_inst,
2052                                     hints->icon_pixmap,
2053                                     (hints->flags & IconMaskHint ?
2054                                      hints->icon_mask : None),
2055                                     &self->icons[self->nicons-1].width,
2056                                     &self->icons[self->nicons-1].height,
2057                                     &self->icons[self->nicons-1].data)){
2058                     g_free(&self->icons[self->nicons-1]);
2059                     self->nicons--;
2060                 }
2061                 xerror_set_ignore(FALSE);
2062             }
2063             XFree(hints);
2064         }
2065     }
2066
2067     /* set the default icon onto the window
2068        in theory, this could be a race, but if a window doesn't set an icon
2069        or removes it entirely, it's not very likely it is going to set one
2070        right away afterwards */
2071     if (self->nicons == 0) {
2072         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2073         gulong *data;
2074
2075         data = g_new(gulong, 48*48+2);
2076         data[0] = data[1] =  48;
2077         for (i = 0; i < 48*48; ++i)
2078             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2079                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2080                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2081                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2082         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2083         g_free(data);
2084     } else if (self->frame)
2085         /* don't draw the icon empty if we're just setting one now anyways,
2086            we'll get the property change any second */
2087         frame_adjust_icon(self->frame);
2088 }
2089
2090 void client_update_user_time(ObClient *self)
2091 {
2092     guint32 time;
2093     gboolean got = FALSE;
2094
2095     if (self->user_time_window)
2096         got = PROP_GET32(self->user_time_window,
2097                          net_wm_user_time, cardinal, &time);
2098     if (!got)
2099         got = PROP_GET32(self->window, net_wm_user_time, cardinal, &time);
2100
2101     if (got) {
2102         /* we set this every time, not just when it grows, because in practice
2103            sometimes time goes backwards! (ntpdate.. yay....) so.. if it goes
2104            backward we don't want all windows to stop focusing. we'll just
2105            assume noone is setting times older than the last one, cuz that
2106            would be pretty stupid anyways
2107         */
2108         self->user_time = time;
2109
2110         /*ob_debug("window %s user time %u\n", self->title, time);*/
2111     }
2112 }
2113
2114 void client_update_user_time_window(ObClient *self)
2115 {
2116     guint32 w;
2117
2118     if (!PROP_GET32(self->window, net_wm_user_time_window, window, &w))
2119         w = None;
2120
2121     if (w != self->user_time_window) {
2122         /* remove the old window */
2123         propwin_remove(self->user_time_window, OB_PROPWIN_USER_TIME, self);
2124         self->user_time_window = None;
2125
2126         if (self->group && self->group->leader == w) {
2127             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2128                           "_NET_WM_USER_TYPE_WINDOW to its group leader\n");
2129             /* do it anyways..? */
2130         }
2131         else if (w == self->window) {
2132             ob_debug_type(OB_DEBUG_APP_BUGS, "Window is setting its "
2133                           "_NET_WM_USER_TIME_WINDOW to itself\n");
2134             w = None; /* don't do it */
2135         }
2136
2137         /* add the new window */
2138         propwin_add(w, OB_PROPWIN_USER_TIME, self);
2139         self->user_time_window = w;
2140
2141         /* and update from it */
2142         client_update_user_time(self);
2143     }
2144 }
2145
2146 void client_update_icon_geometry(ObClient *self)
2147 {
2148     guint num;
2149     guint32 *data;
2150
2151     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2152
2153     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num)
2154         && num == 4)
2155     {
2156         /* don't let them set it with an area < 0 */
2157         RECT_SET(self->icon_geometry, data[0], data[1],
2158                  MAX(data[2],0), MAX(data[3],0));
2159     }
2160 }
2161
2162 static void client_get_session_ids(ObClient *self)
2163 {
2164     guint32 leader;
2165     gboolean got;
2166     gchar *s;
2167     gchar **ss;
2168
2169     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2170         leader = None;
2171
2172     /* get the SM_CLIENT_ID */
2173     got = FALSE;
2174     if (leader)
2175         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2176     if (!got)
2177         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2178
2179     /* get the WM_CLASS (name and class). make them "" if they are not
2180        provided */
2181     got = FALSE;
2182     if (leader)
2183         got = PROP_GETSS(leader, wm_class, locale, &ss);
2184     if (!got)
2185         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2186
2187     if (got) {
2188         if (ss[0]) {
2189             self->name = g_strdup(ss[0]);
2190             if (ss[1])
2191                 self->class = g_strdup(ss[1]);
2192         }
2193         g_strfreev(ss);
2194     }
2195
2196     if (self->name == NULL) self->name = g_strdup("");
2197     if (self->class == NULL) self->class = g_strdup("");
2198
2199     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2200     got = FALSE;
2201     if (leader)
2202         got = PROP_GETS(leader, wm_window_role, locale, &s);
2203     if (!got)
2204         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2205
2206     if (got)
2207         self->role = s;
2208     else
2209         self->role = g_strdup("");
2210
2211     /* get the WM_COMMAND */
2212     got = FALSE;
2213
2214     if (leader)
2215         got = PROP_GETSS(leader, wm_command, locale, &ss);
2216     if (!got)
2217         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2218
2219     if (got) {
2220         /* merge/mash them all together */
2221         gchar *merge = NULL;
2222         gint i;
2223
2224         for (i = 0; ss[i]; ++i) {
2225             gchar *tmp = merge;
2226             if (merge)
2227                 merge = g_strconcat(merge, ss[i], NULL);
2228             else
2229                 merge = g_strconcat(ss[i], NULL);
2230             g_free(tmp);
2231         }
2232         g_strfreev(ss);
2233
2234         self->wm_command = merge;
2235     }
2236
2237     /* get the WM_CLIENT_MACHINE */
2238     got = FALSE;
2239     if (leader)
2240         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2241     if (!got)
2242         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2243
2244     if (got) {
2245         gchar localhost[128];
2246
2247         gethostname(localhost, 127);
2248         localhost[127] = '\0';
2249         if (strcmp(localhost, s) != 0)
2250             self->client_machine = s;
2251         else
2252             g_free(s);
2253     }
2254 }
2255
2256 static void client_change_wm_state(ObClient *self)
2257 {
2258     gulong state[2];
2259     glong old;
2260
2261     old = self->wmstate;
2262
2263     if (self->shaded || self->iconic ||
2264         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2265     {
2266         self->wmstate = IconicState;
2267     } else
2268         self->wmstate = NormalState;
2269
2270     if (old != self->wmstate) {
2271         PROP_MSG(self->window, kde_wm_change_state,
2272                  self->wmstate, 1, 0, 0);
2273
2274         state[0] = self->wmstate;
2275         state[1] = None;
2276         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2277     }
2278 }
2279
2280 static void client_change_state(ObClient *self)
2281 {
2282     gulong netstate[11];
2283     guint num;
2284
2285     num = 0;
2286     if (self->modal)
2287         netstate[num++] = prop_atoms.net_wm_state_modal;
2288     if (self->shaded)
2289         netstate[num++] = prop_atoms.net_wm_state_shaded;
2290     if (self->iconic)
2291         netstate[num++] = prop_atoms.net_wm_state_hidden;
2292     if (self->skip_taskbar)
2293         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2294     if (self->skip_pager)
2295         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2296     if (self->fullscreen)
2297         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2298     if (self->max_vert)
2299         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2300     if (self->max_horz)
2301         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2302     if (self->above)
2303         netstate[num++] = prop_atoms.net_wm_state_above;
2304     if (self->below)
2305         netstate[num++] = prop_atoms.net_wm_state_below;
2306     if (self->demands_attention)
2307         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2308     if (self->undecorated)
2309         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2310     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2311
2312     if (self->frame)
2313         frame_adjust_state(self->frame);
2314 }
2315
2316 ObClient *client_search_focus_tree(ObClient *self)
2317 {
2318     GSList *it;
2319     ObClient *ret;
2320
2321     for (it = self->transients; it; it = g_slist_next(it)) {
2322         if (client_focused(it->data)) return it->data;
2323         if ((ret = client_search_focus_tree(it->data))) return ret;
2324     }
2325     return NULL;
2326 }
2327
2328 ObClient *client_search_focus_tree_full(ObClient *self)
2329 {
2330     if (self->transient_for) {
2331         if (self->transient_for != OB_TRAN_GROUP) {
2332             return client_search_focus_tree_full(self->transient_for);
2333         } else {
2334             GSList *it;
2335             gboolean recursed = FALSE;
2336
2337             for (it = self->group->members; it; it = g_slist_next(it))
2338                 if (!((ObClient*)it->data)->transient_for) {
2339                     ObClient *c;
2340                     if ((c = client_search_focus_tree_full(it->data)))
2341                         return c;
2342                     recursed = TRUE;
2343                 }
2344             if (recursed)
2345                 return NULL;
2346         }
2347     }
2348
2349     /* this function checks the whole tree, the client_search_focus_tree~
2350        does not, so we need to check this window */
2351     if (client_focused(self))
2352         return self;
2353     return client_search_focus_tree(self);
2354 }
2355
2356 static ObStackingLayer calc_layer(ObClient *self)
2357 {
2358     ObStackingLayer l;
2359
2360     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2361         l = OB_STACKING_LAYER_DESKTOP;
2362     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2363         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2364         else l = OB_STACKING_LAYER_ABOVE;
2365     }
2366     else if ((self->fullscreen ||
2367               /* No decorations and fills the monitor = oldskool fullscreen.
2368                  But not for undecorated windows, because the user can do that
2369               */
2370               (self->decorations == 0 &&
2371                !self->undecorated &&
2372                RECT_EQUAL(self->area,
2373                           *screen_physical_area_monitor
2374                           (client_monitor(self))))) &&
2375              (client_focused(self) || client_search_focus_tree(self)))
2376         l = OB_STACKING_LAYER_FULLSCREEN;
2377     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2378     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2379     else l = OB_STACKING_LAYER_NORMAL;
2380
2381     return l;
2382 }
2383
2384 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2385                                         ObStackingLayer min)
2386 {
2387     ObStackingLayer old, own;
2388     GSList *it;
2389
2390     old = self->layer;
2391     own = calc_layer(self);
2392     self->layer = MAX(own, min);
2393
2394     if (self->layer != old) {
2395         stacking_remove(CLIENT_AS_WINDOW(self));
2396         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2397     }
2398
2399     for (it = self->transients; it; it = g_slist_next(it))
2400         client_calc_layer_recursive(it->data, orig,
2401                                     self->layer);
2402 }
2403
2404 void client_calc_layer(ObClient *self)
2405 {
2406     ObClient *orig;
2407     GSList *it;
2408
2409     orig = self;
2410
2411     /* transients take on the layer of their parents */
2412     it = client_search_all_top_parents(self);
2413
2414     for (; it; it = g_slist_next(it))
2415         client_calc_layer_recursive(it->data, orig, 0);
2416 }
2417
2418 gboolean client_should_show(ObClient *self)
2419 {
2420     if (self->iconic)
2421         return FALSE;
2422     if (client_normal(self) && screen_showing_desktop)
2423         return FALSE;
2424     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2425         return TRUE;
2426
2427     return FALSE;
2428 }
2429
2430 gboolean client_show(ObClient *self)
2431 {
2432     gboolean show = FALSE;
2433
2434     if (client_should_show(self)) {
2435         frame_show(self->frame);
2436         show = TRUE;
2437     }
2438
2439     /* According to the ICCCM (sec 4.1.3.1) when a window is not visible, it
2440        needs to be in IconicState. This includes when it is on another
2441        desktop!
2442     */
2443     client_change_wm_state(self);
2444     return show;
2445 }
2446
2447 gboolean client_hide(ObClient *self)
2448 {
2449     gboolean hide = FALSE;
2450
2451     if (!client_should_show(self)) {
2452         if (self == focus_client) {
2453             /* if there is a grab going on, then we need to cancel it. if we
2454                move focus during the grab, applications will get
2455                NotifyWhileGrabbed events and ignore them !
2456
2457                actions should not rely on being able to move focus during an
2458                interactive grab.
2459             */
2460             if (keyboard_interactively_grabbed())
2461                 keyboard_interactive_cancel();
2462         }
2463
2464         frame_hide(self->frame);
2465         hide = TRUE;
2466     }
2467
2468     /* According to the ICCCM (sec 4.1.3.1) when a window is not visible, it
2469        needs to be in IconicState. This includes when it is on another
2470        desktop!
2471     */
2472     client_change_wm_state(self);
2473     return hide;
2474 }
2475
2476 void client_showhide(ObClient *self)
2477 {
2478     if (!client_show(self))
2479         client_hide(self);
2480
2481     /* According to the ICCCM (sec 4.1.3.1) when a window is not visible, it
2482        needs to be in IconicState. This includes when it is on another
2483        desktop!
2484     */
2485     client_change_wm_state(self);
2486 }
2487
2488 gboolean client_normal(ObClient *self) {
2489     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2490               self->type == OB_CLIENT_TYPE_DOCK ||
2491               self->type == OB_CLIENT_TYPE_SPLASH);
2492 }
2493
2494 gboolean client_helper(ObClient *self)
2495 {
2496     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2497             self->type == OB_CLIENT_TYPE_MENU ||
2498             self->type == OB_CLIENT_TYPE_TOOLBAR);
2499 }
2500
2501 gboolean client_mouse_focusable(ObClient *self)
2502 {
2503     return !(self->type == OB_CLIENT_TYPE_MENU ||
2504              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2505              self->type == OB_CLIENT_TYPE_SPLASH ||
2506              self->type == OB_CLIENT_TYPE_DOCK);
2507 }
2508
2509 gboolean client_enter_focusable(ObClient *self)
2510 {
2511     /* you can focus desktops but it shouldn't on enter */
2512     return (client_mouse_focusable(self) &&
2513             self->type != OB_CLIENT_TYPE_DESKTOP);
2514 }
2515
2516
2517 static void client_apply_startup_state(ObClient *self)
2518 {
2519     /* set the desktop hint, to make sure that it always exists */
2520     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2521
2522     /* these are in a carefully crafted order.. */
2523
2524     if (self->iconic) {
2525         self->iconic = FALSE;
2526         client_iconify(self, TRUE, FALSE, TRUE);
2527     }
2528     if (self->fullscreen) {
2529         self->fullscreen = FALSE;
2530         client_fullscreen(self, TRUE);
2531     }
2532     if (self->undecorated) {
2533         self->undecorated = FALSE;
2534         client_set_undecorated(self, TRUE);
2535     }
2536     if (self->shaded) {
2537         self->shaded = FALSE;
2538         client_shade(self, TRUE);
2539     }
2540     if (self->demands_attention) {
2541         self->demands_attention = FALSE;
2542         client_hilite(self, TRUE);
2543     }
2544
2545     if (self->max_vert && self->max_horz) {
2546         self->max_vert = self->max_horz = FALSE;
2547         client_maximize(self, TRUE, 0);
2548     } else if (self->max_vert) {
2549         self->max_vert = FALSE;
2550         client_maximize(self, TRUE, 2);
2551     } else if (self->max_horz) {
2552         self->max_horz = FALSE;
2553         client_maximize(self, TRUE, 1);
2554     }
2555
2556     /* nothing to do for the other states:
2557        skip_taskbar
2558        skip_pager
2559        modal
2560        above
2561        below
2562     */
2563 }
2564
2565 void client_convert_gravity(ObClient *self, gint gravity, gint *x, gint *y,
2566                             gint w, gint h)
2567 {
2568     gint oldg = self->gravity;
2569
2570     /* get the frame's position from the requested stuff */
2571     self->gravity = gravity;
2572     frame_client_gravity(self->frame, x, y, w, h);
2573     self->gravity = oldg;
2574
2575     /* get the client's position in its true gravity from that */
2576     frame_frame_gravity(self->frame, x, y, w, h);
2577 }
2578
2579 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2580                           gint *logicalw, gint *logicalh,
2581                           gboolean user)
2582 {
2583     Rect desired_area = {*x, *y, *w, *h};
2584
2585     /* make the frame recalculate its dimentions n shit without changing
2586        anything visible for real, this way the constraints below can work with
2587        the updated frame dimensions. */
2588     frame_adjust_area(self->frame, TRUE, TRUE, TRUE);
2589
2590     /* work within the prefered sizes given by the window */
2591     if (!(*w == self->area.width && *h == self->area.height)) {
2592         gint basew, baseh, minw, minh;
2593
2594         /* base size is substituted with min size if not specified */
2595         if (self->base_size.width || self->base_size.height) {
2596             basew = self->base_size.width;
2597             baseh = self->base_size.height;
2598         } else {
2599             basew = self->min_size.width;
2600             baseh = self->min_size.height;
2601         }
2602         /* min size is substituted with base size if not specified */
2603         if (self->min_size.width || self->min_size.height) {
2604             minw = self->min_size.width;
2605             minh = self->min_size.height;
2606         } else {
2607             minw = self->base_size.width;
2608             minh = self->base_size.height;
2609         }
2610
2611         /* if this is a user-requested resize, then check against min/max
2612            sizes */
2613
2614         /* smaller than min size or bigger than max size? */
2615         if (*w > self->max_size.width) *w = self->max_size.width;
2616         if (*w < minw) *w = minw;
2617         if (*h > self->max_size.height) *h = self->max_size.height;
2618         if (*h < minh) *h = minh;
2619
2620         *w -= basew;
2621         *h -= baseh;
2622
2623         /* keep to the increments */
2624         *w /= self->size_inc.width;
2625         *h /= self->size_inc.height;
2626
2627         /* you cannot resize to nothing */
2628         if (basew + *w < 1) *w = 1 - basew;
2629         if (baseh + *h < 1) *h = 1 - baseh;
2630
2631         /* save the logical size */
2632         *logicalw = self->size_inc.width > 1 ? *w : *w + basew;
2633         *logicalh = self->size_inc.height > 1 ? *h : *h + baseh;
2634
2635         *w *= self->size_inc.width;
2636         *h *= self->size_inc.height;
2637
2638         *w += basew;
2639         *h += baseh;
2640
2641         /* adjust the height to match the width for the aspect ratios.
2642            for this, min size is not substituted for base size ever. */
2643         *w -= self->base_size.width;
2644         *h -= self->base_size.height;
2645
2646         if (!self->fullscreen) {
2647             if (self->min_ratio)
2648                 if (*h * self->min_ratio > *w) {
2649                     *h = (gint)(*w / self->min_ratio);
2650
2651                     /* you cannot resize to nothing */
2652                     if (*h < 1) {
2653                         *h = 1;
2654                         *w = (gint)(*h * self->min_ratio);
2655                     }
2656                 }
2657             if (self->max_ratio)
2658                 if (*h * self->max_ratio < *w) {
2659                     *h = (gint)(*w / self->max_ratio);
2660
2661                     /* you cannot resize to nothing */
2662                     if (*h < 1) {
2663                         *h = 1;
2664                         *w = (gint)(*h * self->min_ratio);
2665                     }
2666                 }
2667         }
2668
2669         *w += self->base_size.width;
2670         *h += self->base_size.height;
2671     }
2672
2673     /* gets the frame's position */
2674     frame_client_gravity(self->frame, x, y, *w, *h);
2675
2676     /* these positions are frame positions, not client positions */
2677
2678     /* set the size and position if fullscreen */
2679     if (self->fullscreen) {
2680         Rect *a;
2681         guint i;
2682
2683         i = screen_find_monitor(&desired_area);
2684         a = screen_physical_area_monitor(i);
2685
2686         *x = a->x;
2687         *y = a->y;
2688         *w = a->width;
2689         *h = a->height;
2690
2691         user = FALSE; /* ignore if the client can't be moved/resized when it
2692                          is entering fullscreen */
2693     } else if (self->max_horz || self->max_vert) {
2694         Rect *a;
2695         guint i;
2696
2697         i = screen_find_monitor(&desired_area);
2698         a = screen_area_monitor(self->desktop, i);
2699
2700         /* set the size and position if maximized */
2701         if (self->max_horz) {
2702             *x = a->x;
2703             *w = a->width - self->frame->size.left - self->frame->size.right;
2704         }
2705         if (self->max_vert) {
2706             *y = a->y;
2707             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2708         }
2709
2710         /* maximizing is not allowed if the user can't move+resize the window
2711          */
2712     }
2713
2714     /* gets the client's position */
2715     frame_frame_gravity(self->frame, x, y, *w, *h);
2716
2717     /* these override the above states! if you cant move you can't move! */
2718     if (user) {
2719         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2720             *x = self->area.x;
2721             *y = self->area.y;
2722         }
2723         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2724             *w = self->area.width;
2725             *h = self->area.height;
2726         }
2727     }
2728
2729     g_assert(*w > 0);
2730     g_assert(*h > 0);
2731 }
2732
2733
2734 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2735                       gboolean user, gboolean final)
2736 {
2737     gint oldw, oldh;
2738     gboolean send_resize_client;
2739     gboolean moved = FALSE, resized = FALSE;
2740     gboolean fmoved, fresized;
2741     guint fdecor = self->frame->decorations;
2742     gboolean fhorz = self->frame->max_horz;
2743     gint logicalw, logicalh;
2744
2745     /* find the new x, y, width, and height (and logical size) */
2746     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2747
2748     /* set the logical size if things changed */
2749     if (!(w == self->area.width && h == self->area.height))
2750         SIZE_SET(self->logical_size, logicalw, logicalh);
2751
2752     /* figure out if we moved or resized or what */
2753     moved = x != self->area.x || y != self->area.y;
2754     resized = w != self->area.width || h != self->area.height;
2755
2756     oldw = self->area.width;
2757     oldh = self->area.height;
2758     RECT_SET(self->area, x, y, w, h);
2759
2760     /* for app-requested resizes, always resize if 'resized' is true.
2761        for user-requested ones, only resize if final is true, or when
2762        resizing in redraw mode */
2763     send_resize_client = ((!user && resized) ||
2764                           (user && (final ||
2765                                     (resized && config_resize_redraw))));
2766
2767     /* if the client is enlarging, then resize the client before the frame */
2768     if (send_resize_client && (w > oldw || h > oldh)) {
2769         XResizeWindow(ob_display, self->window,
2770                       MAX(w, oldw), MAX(h, oldh));
2771         /* resize the plate to show the client padding color underneath */
2772         frame_adjust_client_area(self->frame);
2773     }
2774
2775     /* find the frame's dimensions and move/resize it */
2776     fmoved = moved;
2777     fresized = resized;
2778     if (self->decorations != fdecor || self->max_horz != fhorz)
2779         fmoved = fresized = TRUE;
2780     if (fmoved || fresized)
2781         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2782
2783     if ((!user || (user && final)) && !resized)
2784     {
2785         XEvent event;
2786
2787         POINT_SET(self->root_pos,
2788                   self->frame->area.x + self->frame->size.left -
2789                   self->border_width,
2790                   self->frame->area.y + self->frame->size.top -
2791                   self->border_width);
2792
2793         event.type = ConfigureNotify;
2794         event.xconfigure.display = ob_display;
2795         event.xconfigure.event = self->window;
2796         event.xconfigure.window = self->window;
2797
2798         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
2799                  self->title, self->root_pos.x, self->root_pos.y, w, h);
2800
2801         /* root window real coords */
2802         event.xconfigure.x = self->root_pos.x;
2803         event.xconfigure.y = self->root_pos.y;
2804         event.xconfigure.width = w;
2805         event.xconfigure.height = h;
2806         event.xconfigure.border_width = 0;
2807         event.xconfigure.above = self->frame->plate;
2808         event.xconfigure.override_redirect = FALSE;
2809         XSendEvent(event.xconfigure.display, event.xconfigure.window,
2810                    FALSE, StructureNotifyMask, &event);
2811     }
2812
2813     /* if the client is shrinking, then resize the frame before the client */
2814     if (send_resize_client && (w <= oldw || h <= oldh)) {
2815         /* resize the plate to show the client padding color underneath */
2816         frame_adjust_client_area(self->frame);
2817
2818         if (send_resize_client)
2819             XResizeWindow(ob_display, self->window, w, h);
2820     }
2821
2822     XFlush(ob_display);
2823 }
2824
2825 void client_fullscreen(ObClient *self, gboolean fs)
2826 {
2827     gint x, y, w, h;
2828
2829     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
2830         self->fullscreen == fs) return;                   /* already done */
2831
2832     self->fullscreen = fs;
2833     client_change_state(self); /* change the state hints on the client */
2834
2835     if (fs) {
2836         self->pre_fullscreen_area = self->area;
2837         /* if the window is maximized, its area isn't all that meaningful.
2838            save it's premax area instead. */
2839         if (self->max_horz) {
2840             self->pre_fullscreen_area.x = self->pre_max_area.x;
2841             self->pre_fullscreen_area.width = self->pre_max_area.width;
2842         }
2843         if (self->max_vert) {
2844             self->pre_fullscreen_area.y = self->pre_max_area.y;
2845             self->pre_fullscreen_area.height = self->pre_max_area.height;
2846         }
2847
2848         /* these will help configure_full figure out where to fullscreen
2849            the window */
2850         x = self->area.x;
2851         y = self->area.y;
2852         w = self->area.width;
2853         h = self->area.height;
2854     } else {
2855         g_assert(self->pre_fullscreen_area.width > 0 &&
2856                  self->pre_fullscreen_area.height > 0);
2857
2858         x = self->pre_fullscreen_area.x;
2859         y = self->pre_fullscreen_area.y;
2860         w = self->pre_fullscreen_area.width;
2861         h = self->pre_fullscreen_area.height;
2862         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
2863     }
2864
2865     client_setup_decor_and_functions(self);
2866
2867     client_move_resize(self, x, y, w, h);
2868
2869     /* and adjust our layer/stacking. do this after resizing the window,
2870        and applying decorations, because windows which fill the screen are
2871        considered "fullscreen" and it affects their layer */
2872     client_calc_layer(self);
2873
2874     if (fs) {
2875         /* try focus us when we go into fullscreen mode */
2876         client_focus(self);
2877     }
2878 }
2879
2880 static void client_iconify_recursive(ObClient *self,
2881                                      gboolean iconic, gboolean curdesk,
2882                                      gboolean hide_animation)
2883 {
2884     GSList *it;
2885     gboolean changed = FALSE;
2886
2887
2888     if (self->iconic != iconic) {
2889         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
2890                  self->window);
2891
2892         if (iconic) {
2893             /* don't let non-normal windows iconify along with their parents
2894                or whatever */
2895             if (client_normal(self)) {
2896                 self->iconic = iconic;
2897
2898                 /* update the focus lists.. iconic windows go to the bottom of
2899                    the list, put the new iconic window at the 'top of the
2900                    bottom'. */
2901                 focus_order_to_top(self);
2902
2903                 changed = TRUE;
2904             }
2905         } else {
2906             self->iconic = iconic;
2907
2908             if (curdesk && self->desktop != screen_desktop &&
2909                 self->desktop != DESKTOP_ALL)
2910                 client_set_desktop(self, screen_desktop, FALSE);
2911
2912             /* this puts it after the current focused window */
2913             focus_order_remove(self);
2914             focus_order_add_new(self);
2915
2916             changed = TRUE;
2917         }
2918     }
2919
2920     if (changed) {
2921         client_change_state(self);
2922         if (config_animate_iconify && !hide_animation)
2923             frame_begin_iconify_animation(self->frame, iconic);
2924         /* do this after starting the animation so it doesn't flash */
2925         client_showhide(self);
2926     }
2927
2928     /* iconify all direct transients, and deiconify all transients
2929        (non-direct too) */
2930     for (it = self->transients; it; it = g_slist_next(it))
2931         if (it->data != self)
2932             if (client_is_direct_child(self, it->data) || !iconic)
2933                 client_iconify_recursive(it->data, iconic, curdesk,
2934                                          hide_animation);
2935 }
2936
2937 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
2938                     gboolean hide_animation)
2939 {
2940     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
2941         /* move up the transient chain as far as possible first */
2942         self = client_search_top_normal_parent(self);
2943         client_iconify_recursive(self, iconic, curdesk, hide_animation);
2944     }
2945 }
2946
2947 void client_maximize(ObClient *self, gboolean max, gint dir)
2948 {
2949     gint x, y, w, h;
2950
2951     g_assert(dir == 0 || dir == 1 || dir == 2);
2952     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
2953
2954     /* check if already done */
2955     if (max) {
2956         if (dir == 0 && self->max_horz && self->max_vert) return;
2957         if (dir == 1 && self->max_horz) return;
2958         if (dir == 2 && self->max_vert) return;
2959     } else {
2960         if (dir == 0 && !self->max_horz && !self->max_vert) return;
2961         if (dir == 1 && !self->max_horz) return;
2962         if (dir == 2 && !self->max_vert) return;
2963     }
2964
2965     /* these will help configure_full figure out which screen to fill with
2966        the window */
2967     x = self->area.x;
2968     y = self->area.y;
2969     w = self->area.width;
2970     h = self->area.height;
2971
2972     if (max) {
2973         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
2974             RECT_SET(self->pre_max_area,
2975                      self->area.x, self->pre_max_area.y,
2976                      self->area.width, self->pre_max_area.height);
2977         }
2978         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
2979             RECT_SET(self->pre_max_area,
2980                      self->pre_max_area.x, self->area.y,
2981                      self->pre_max_area.width, self->area.height);
2982         }
2983     } else {
2984         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
2985             g_assert(self->pre_max_area.width > 0);
2986
2987             x = self->pre_max_area.x;
2988             w = self->pre_max_area.width;
2989
2990             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
2991                      0, self->pre_max_area.height);
2992         }
2993         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
2994             g_assert(self->pre_max_area.height > 0);
2995
2996             y = self->pre_max_area.y;
2997             h = self->pre_max_area.height;
2998
2999             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3000                      self->pre_max_area.width, 0);
3001         }
3002     }
3003
3004     if (dir == 0 || dir == 1) /* horz */
3005         self->max_horz = max;
3006     if (dir == 0 || dir == 2) /* vert */
3007         self->max_vert = max;
3008
3009     client_change_state(self); /* change the state hints on the client */
3010
3011     client_setup_decor_and_functions(self);
3012
3013     client_move_resize(self, x, y, w, h);
3014 }
3015
3016 void client_shade(ObClient *self, gboolean shade)
3017 {
3018     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3019          shade) ||                         /* can't shade */
3020         self->shaded == shade) return;     /* already done */
3021
3022     self->shaded = shade;
3023     client_change_state(self);
3024     client_change_wm_state(self); /* the window is being hidden/shown */
3025     /* resize the frame to just the titlebar */
3026     frame_adjust_area(self->frame, FALSE, FALSE, FALSE);
3027 }
3028
3029 void client_close(ObClient *self)
3030 {
3031     XEvent ce;
3032
3033     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3034
3035     /* in the case that the client provides no means to requesting that it
3036        close, we just kill it */
3037     if (!self->delete_window)
3038         client_kill(self);
3039
3040     /*
3041       XXX: itd be cool to do timeouts and shit here for killing the client's
3042       process off
3043       like... if the window is around after 5 seconds, then the close button
3044       turns a nice red, and if this function is called again, the client is
3045       explicitly killed.
3046     */
3047
3048     ce.xclient.type = ClientMessage;
3049     ce.xclient.message_type =  prop_atoms.wm_protocols;
3050     ce.xclient.display = ob_display;
3051     ce.xclient.window = self->window;
3052     ce.xclient.format = 32;
3053     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
3054     ce.xclient.data.l[1] = event_curtime;
3055     ce.xclient.data.l[2] = 0l;
3056     ce.xclient.data.l[3] = 0l;
3057     ce.xclient.data.l[4] = 0l;
3058     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3059 }
3060
3061 void client_kill(ObClient *self)
3062 {
3063     XKillClient(ob_display, self->window);
3064 }
3065
3066 void client_hilite(ObClient *self, gboolean hilite)
3067 {
3068     if (self->demands_attention == hilite)
3069         return; /* no change */
3070
3071     /* don't allow focused windows to hilite */
3072     self->demands_attention = hilite && !client_focused(self);
3073     if (self->frame != NULL) { /* if we're mapping, just set the state */
3074         if (self->demands_attention)
3075             frame_flash_start(self->frame);
3076         else
3077             frame_flash_stop(self->frame);
3078         client_change_state(self);
3079     }
3080 }
3081
3082 void client_set_desktop_recursive(ObClient *self,
3083                                   guint target,
3084                                   gboolean donthide)
3085 {
3086     guint old;
3087     GSList *it;
3088
3089     if (target != self->desktop) {
3090
3091         ob_debug("Setting desktop %u\n", target+1);
3092
3093         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3094
3095         old = self->desktop;
3096         self->desktop = target;
3097         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3098         /* the frame can display the current desktop state */
3099         frame_adjust_state(self->frame);
3100         /* 'move' the window to the new desktop */
3101         if (!donthide)
3102             client_showhide(self);
3103         /* raise if it was not already on the desktop */
3104         if (old != DESKTOP_ALL)
3105             stacking_raise(CLIENT_AS_WINDOW(self));
3106         if (STRUT_EXISTS(self->strut))
3107             screen_update_areas();
3108     }
3109
3110     /* move all transients */
3111     for (it = self->transients; it; it = g_slist_next(it))
3112         if (it->data != self)
3113             if (client_is_direct_child(self, it->data))
3114                 client_set_desktop_recursive(it->data, target, donthide);
3115 }
3116
3117 void client_set_desktop(ObClient *self, guint target,
3118                         gboolean donthide)
3119 {
3120     self = client_search_top_normal_parent(self);
3121     client_set_desktop_recursive(self, target, donthide);
3122 }
3123
3124 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3125 {
3126     while (child != parent &&
3127            child->transient_for && child->transient_for != OB_TRAN_GROUP)
3128         child = child->transient_for;
3129     return child == parent;
3130 }
3131
3132 ObClient *client_search_modal_child(ObClient *self)
3133 {
3134     GSList *it;
3135     ObClient *ret;
3136
3137     for (it = self->transients; it; it = g_slist_next(it)) {
3138         ObClient *c = it->data;
3139         if ((ret = client_search_modal_child(c))) return ret;
3140         if (c->modal) return c;
3141     }
3142     return NULL;
3143 }
3144
3145 gboolean client_validate(ObClient *self)
3146 {
3147     XEvent e;
3148
3149     XSync(ob_display, FALSE); /* get all events on the server */
3150
3151     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3152         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3153         XPutBackEvent(ob_display, &e);
3154         return FALSE;
3155     }
3156
3157     return TRUE;
3158 }
3159
3160 void client_set_wm_state(ObClient *self, glong state)
3161 {
3162     if (state == self->wmstate) return; /* no change */
3163
3164     switch (state) {
3165     case IconicState:
3166         client_iconify(self, TRUE, TRUE, FALSE);
3167         break;
3168     case NormalState:
3169         client_iconify(self, FALSE, TRUE, FALSE);
3170         break;
3171     }
3172 }
3173
3174 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3175 {
3176     gboolean shaded = self->shaded;
3177     gboolean fullscreen = self->fullscreen;
3178     gboolean undecorated = self->undecorated;
3179     gboolean max_horz = self->max_horz;
3180     gboolean max_vert = self->max_vert;
3181     gboolean modal = self->modal;
3182     gboolean iconic = self->iconic;
3183     gboolean demands_attention = self->demands_attention;
3184     gboolean above = self->above;
3185     gboolean below = self->below;
3186     gint i;
3187
3188     if (!(action == prop_atoms.net_wm_state_add ||
3189           action == prop_atoms.net_wm_state_remove ||
3190           action == prop_atoms.net_wm_state_toggle))
3191         /* an invalid action was passed to the client message, ignore it */
3192         return;
3193
3194     for (i = 0; i < 2; ++i) {
3195         Atom state = i == 0 ? data1 : data2;
3196
3197         if (!state) continue;
3198
3199         /* if toggling, then pick whether we're adding or removing */
3200         if (action == prop_atoms.net_wm_state_toggle) {
3201             if (state == prop_atoms.net_wm_state_modal)
3202                 action = modal ? prop_atoms.net_wm_state_remove :
3203                     prop_atoms.net_wm_state_add;
3204             else if (state == prop_atoms.net_wm_state_maximized_vert)
3205                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3206                     prop_atoms.net_wm_state_add;
3207             else if (state == prop_atoms.net_wm_state_maximized_horz)
3208                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3209                     prop_atoms.net_wm_state_add;
3210             else if (state == prop_atoms.net_wm_state_shaded)
3211                 action = shaded ? prop_atoms.net_wm_state_remove :
3212                     prop_atoms.net_wm_state_add;
3213             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3214                 action = self->skip_taskbar ?
3215                     prop_atoms.net_wm_state_remove :
3216                     prop_atoms.net_wm_state_add;
3217             else if (state == prop_atoms.net_wm_state_skip_pager)
3218                 action = self->skip_pager ?
3219                     prop_atoms.net_wm_state_remove :
3220                     prop_atoms.net_wm_state_add;
3221             else if (state == prop_atoms.net_wm_state_hidden)
3222                 action = self->iconic ?
3223                     prop_atoms.net_wm_state_remove :
3224                     prop_atoms.net_wm_state_add;
3225             else if (state == prop_atoms.net_wm_state_fullscreen)
3226                 action = fullscreen ?
3227                     prop_atoms.net_wm_state_remove :
3228                     prop_atoms.net_wm_state_add;
3229             else if (state == prop_atoms.net_wm_state_above)
3230                 action = self->above ? prop_atoms.net_wm_state_remove :
3231                     prop_atoms.net_wm_state_add;
3232             else if (state == prop_atoms.net_wm_state_below)
3233                 action = self->below ? prop_atoms.net_wm_state_remove :
3234                     prop_atoms.net_wm_state_add;
3235             else if (state == prop_atoms.net_wm_state_demands_attention)
3236                 action = self->demands_attention ?
3237                     prop_atoms.net_wm_state_remove :
3238                     prop_atoms.net_wm_state_add;
3239             else if (state == prop_atoms.ob_wm_state_undecorated)
3240                 action = undecorated ? prop_atoms.net_wm_state_remove :
3241                     prop_atoms.net_wm_state_add;
3242         }
3243
3244         if (action == prop_atoms.net_wm_state_add) {
3245             if (state == prop_atoms.net_wm_state_modal) {
3246                 modal = TRUE;
3247             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3248                 max_vert = TRUE;
3249             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3250                 max_horz = TRUE;
3251             } else if (state == prop_atoms.net_wm_state_shaded) {
3252                 shaded = TRUE;
3253             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3254                 self->skip_taskbar = TRUE;
3255             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3256                 self->skip_pager = TRUE;
3257             } else if (state == prop_atoms.net_wm_state_hidden) {
3258                 iconic = TRUE;
3259             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3260                 fullscreen = TRUE;
3261             } else if (state == prop_atoms.net_wm_state_above) {
3262                 above = TRUE;
3263                 below = FALSE;
3264             } else if (state == prop_atoms.net_wm_state_below) {
3265                 above = FALSE;
3266                 below = TRUE;
3267             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3268                 demands_attention = TRUE;
3269             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3270                 undecorated = TRUE;
3271             }
3272
3273         } else { /* action == prop_atoms.net_wm_state_remove */
3274             if (state == prop_atoms.net_wm_state_modal) {
3275                 modal = FALSE;
3276             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3277                 max_vert = FALSE;
3278             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3279                 max_horz = FALSE;
3280             } else if (state == prop_atoms.net_wm_state_shaded) {
3281                 shaded = FALSE;
3282             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3283                 self->skip_taskbar = FALSE;
3284             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3285                 self->skip_pager = FALSE;
3286             } else if (state == prop_atoms.net_wm_state_hidden) {
3287                 iconic = FALSE;
3288             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3289                 fullscreen = FALSE;
3290             } else if (state == prop_atoms.net_wm_state_above) {
3291                 above = FALSE;
3292             } else if (state == prop_atoms.net_wm_state_below) {
3293                 below = FALSE;
3294             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3295                 demands_attention = FALSE;
3296             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3297                 undecorated = FALSE;
3298             }
3299         }
3300     }
3301
3302     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3303         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3304             /* toggling both */
3305             if (max_horz == max_vert) { /* both going the same way */
3306                 client_maximize(self, max_horz, 0);
3307             } else {
3308                 client_maximize(self, max_horz, 1);
3309                 client_maximize(self, max_vert, 2);
3310             }
3311         } else {
3312             /* toggling one */
3313             if (max_horz != self->max_horz)
3314                 client_maximize(self, max_horz, 1);
3315             else
3316                 client_maximize(self, max_vert, 2);
3317         }
3318     }
3319     /* change fullscreen state before shading, as it will affect if the window
3320        can shade or not */
3321     if (fullscreen != self->fullscreen)
3322         client_fullscreen(self, fullscreen);
3323     if (shaded != self->shaded)
3324         client_shade(self, shaded);
3325     if (undecorated != self->undecorated)
3326         client_set_undecorated(self, undecorated);
3327     if (above != self->above || below != self->below) {
3328         self->above = above;
3329         self->below = below;
3330         client_calc_layer(self);
3331     }
3332
3333     if (modal != self->modal) {
3334         self->modal = modal;
3335         /* when a window changes modality, then its stacking order with its
3336            transients needs to change */
3337         stacking_raise(CLIENT_AS_WINDOW(self));
3338
3339         /* it also may get focused. if something is focused that shouldn't
3340            be focused anymore, then move the focus */
3341         if (focus_client && client_focus_target(focus_client) != focus_client)
3342             client_focus(focus_client);
3343     }
3344
3345     if (iconic != self->iconic)
3346         client_iconify(self, iconic, FALSE, FALSE);
3347
3348     if (demands_attention != self->demands_attention)
3349         client_hilite(self, demands_attention);
3350
3351     client_change_state(self); /* change the hint to reflect these changes */
3352 }
3353
3354 ObClient *client_focus_target(ObClient *self)
3355 {
3356     ObClient *child = NULL;
3357
3358     child = client_search_modal_child(self);
3359     if (child) return child;
3360     return self;
3361 }
3362
3363 gboolean client_can_focus(ObClient *self)
3364 {
3365     /* choose the correct target */
3366     self = client_focus_target(self);
3367
3368     if (!self->frame->visible)
3369         return FALSE;
3370
3371     if (!(self->can_focus || self->focus_notify))
3372         return FALSE;
3373
3374     return TRUE;
3375 }
3376
3377 gboolean client_focus(ObClient *self)
3378 {
3379     /* choose the correct target */
3380     self = client_focus_target(self);
3381
3382     if (!client_can_focus(self)) {
3383         if (!self->frame->visible) {
3384             /* update the focus lists */
3385             focus_order_to_top(self);
3386         }
3387         return FALSE;
3388     }
3389
3390     ob_debug_type(OB_DEBUG_FOCUS,
3391                   "Focusing client \"%s\" at time %u\n",
3392                   self->title, event_curtime);
3393
3394     /* if there is a grab going on, then we need to cancel it. if we move
3395        focus during the grab, applications will get NotifyWhileGrabbed events
3396        and ignore them !
3397
3398        actions should not rely on being able to move focus during an
3399        interactive grab.
3400     */
3401     if (keyboard_interactively_grabbed())
3402         keyboard_interactive_cancel();
3403
3404     xerror_set_ignore(TRUE);
3405     xerror_occured = FALSE;
3406
3407     if (self->can_focus) {
3408         /* This can cause a BadMatch error with CurrentTime, or if an app
3409            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3410         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3411                        event_curtime);
3412     }
3413
3414     if (self->focus_notify) {
3415         XEvent ce;
3416         ce.xclient.type = ClientMessage;
3417         ce.xclient.message_type = prop_atoms.wm_protocols;
3418         ce.xclient.display = ob_display;
3419         ce.xclient.window = self->window;
3420         ce.xclient.format = 32;
3421         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3422         ce.xclient.data.l[1] = event_curtime;
3423         ce.xclient.data.l[2] = 0l;
3424         ce.xclient.data.l[3] = 0l;
3425         ce.xclient.data.l[4] = 0l;
3426         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3427     }
3428
3429     xerror_set_ignore(FALSE);
3430
3431     return !xerror_occured;
3432 }
3433
3434 /*! Present the client to the user.
3435   @param raise If the client should be raised or not. You should only set
3436                raise to false if you don't care if the window is completely
3437                hidden.
3438 */
3439 static void client_present(ObClient *self, gboolean here, gboolean raise)
3440 {
3441     /* if using focus_delay, stop the timer now so that focus doesn't
3442        go moving on us */
3443     event_halt_focus_delay();
3444
3445     if (client_normal(self) && screen_showing_desktop)
3446         screen_show_desktop(FALSE, self);
3447     if (self->iconic)
3448         client_iconify(self, FALSE, here, FALSE);
3449     if (self->desktop != DESKTOP_ALL &&
3450         self->desktop != screen_desktop)
3451     {
3452         if (here)
3453             client_set_desktop(self, screen_desktop, FALSE);
3454         else
3455             screen_set_desktop(self->desktop, FALSE);
3456     } else if (!self->frame->visible)
3457         /* if its not visible for other reasons, then don't mess
3458            with it */
3459         return;
3460     if (self->shaded)
3461         client_shade(self, FALSE);
3462     if (raise)
3463         stacking_raise(CLIENT_AS_WINDOW(self));
3464
3465     client_focus(self);
3466 }
3467
3468 void client_activate(ObClient *self, gboolean here, gboolean user)
3469 {
3470     guint32 last_time = focus_client ? focus_client->user_time : CurrentTime;
3471     gboolean allow = FALSE;
3472
3473     /* if the request came from the user, or if nothing is focused, then grant
3474        the request.
3475        if the currently focused app doesn't set a user_time, then it can't
3476        benefit from any focus stealing prevention.
3477     */
3478     if (user || !focus_client || !last_time)
3479         allow = TRUE;
3480     /* otherwise, if they didn't give a time stamp or if it is too old, they
3481        don't get focus */
3482     else
3483         allow = event_curtime && event_time_after(event_curtime, last_time);
3484
3485     ob_debug_type(OB_DEBUG_FOCUS,
3486                   "Want to activate window 0x%x with time %u (last time %u), "
3487                   "source=%s allowing? %d\n",
3488                   self->window, event_curtime, last_time,
3489                   (user ? "user" : "application"), allow);
3490
3491     if (allow)
3492         client_present(self, here, TRUE);
3493     else
3494         /* don't focus it but tell the user it wants attention */
3495         client_hilite(self, TRUE);
3496 }
3497
3498 static void client_bring_helper_windows_recursive(ObClient *self,
3499                                                   guint desktop)
3500 {
3501     GSList *it;
3502
3503     for (it = self->transients; it; it = g_slist_next(it))
3504         client_bring_helper_windows_recursive(it->data, desktop);
3505
3506     if (client_helper(self) &&
3507         self->desktop != desktop && self->desktop != DESKTOP_ALL)
3508     {
3509         client_set_desktop(self, desktop, FALSE);
3510     }
3511 }
3512
3513 void client_bring_helper_windows(ObClient *self)
3514 {
3515     client_bring_helper_windows_recursive(self, self->desktop);
3516 }
3517
3518 gboolean client_focused(ObClient *self)
3519 {
3520     return self == focus_client;
3521 }
3522
3523 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3524 {
3525     guint i;
3526     gulong min_diff, min_i;
3527
3528     if (!self->nicons) {
3529         ObClientIcon *parent = NULL;
3530
3531         if (self->transient_for) {
3532             if (self->transient_for != OB_TRAN_GROUP)
3533                 parent = client_icon_recursive(self->transient_for, w, h);
3534             else {
3535                 GSList *it;
3536                 for (it = self->group->members; it; it = g_slist_next(it)) {
3537                     ObClient *c = it->data;
3538                     if (c != self && !c->transient_for) {
3539                         if ((parent = client_icon_recursive(c, w, h)))
3540                             break;
3541                     }
3542                 }
3543             }
3544         }
3545
3546         return parent;
3547     }
3548
3549     /* some kind of crappy approximation to find the icon closest in size to
3550        what we requested, but icons are generally all the same ratio as
3551        eachother so it's good enough. */
3552
3553     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3554     min_i = 0;
3555
3556     for (i = 1; i < self->nicons; ++i) {
3557         gulong diff;
3558
3559         diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3560         if (diff < min_diff) {
3561             min_diff = diff;
3562             min_i = i;
3563         }
3564     }
3565     return &self->icons[min_i];
3566 }
3567
3568 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3569 {
3570     ObClientIcon *ret;
3571     static ObClientIcon deficon;
3572
3573     if (!(ret = client_icon_recursive(self, w, h))) {
3574         deficon.width = deficon.height = 48;
3575         deficon.data = ob_rr_theme->def_win_icon;
3576         ret = &deficon;
3577     }
3578     return ret;
3579 }
3580
3581 void client_set_layer(ObClient *self, gint layer)
3582 {
3583     if (layer < 0) {
3584         self->below = TRUE;
3585         self->above = FALSE;
3586     } else if (layer == 0) {
3587         self->below = self->above = FALSE;
3588     } else {
3589         self->below = FALSE;
3590         self->above = TRUE;
3591     }
3592     client_calc_layer(self);
3593     client_change_state(self); /* reflect this in the state hints */
3594 }
3595
3596 void client_set_undecorated(ObClient *self, gboolean undecorated)
3597 {
3598     if (self->undecorated != undecorated &&
3599         /* don't let it undecorate if the function is missing, but let
3600            it redecorate */
3601         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3602     {
3603         self->undecorated = undecorated;
3604         client_setup_decor_and_functions(self);
3605         client_change_state(self); /* reflect this in the state hints */
3606     }
3607 }
3608
3609 guint client_monitor(ObClient *self)
3610 {
3611     return screen_find_monitor(&self->frame->area);
3612 }
3613
3614 ObClient *client_search_top_normal_parent(ObClient *self)
3615 {
3616     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3617            client_normal(self->transient_for))
3618         self = self->transient_for;
3619     return self;
3620 }
3621
3622 static GSList *client_search_all_top_parents_internal(ObClient *self,
3623                                                       gboolean bylayer,
3624                                                       ObStackingLayer layer)
3625 {
3626     GSList *ret = NULL;
3627
3628     /* move up the direct transient chain as far as possible */
3629     while (self->transient_for && self->transient_for != OB_TRAN_GROUP &&
3630            (!bylayer || self->transient_for->layer == layer) &&
3631            client_normal(self->transient_for))
3632         self = self->transient_for;
3633
3634     if (!self->transient_for)
3635         ret = g_slist_prepend(ret, self);
3636     else {
3637             GSList *it;
3638
3639             g_assert(self->group);
3640
3641             for (it = self->group->members; it; it = g_slist_next(it)) {
3642                 ObClient *c = it->data;
3643
3644                 if (!c->transient_for && client_normal(c) &&
3645                     (!bylayer || c->layer == layer))
3646                 {
3647                     ret = g_slist_prepend(ret, c);
3648                 }
3649             }
3650
3651             if (ret == NULL) /* no group parents */
3652                 ret = g_slist_prepend(ret, self);
3653     }
3654
3655     return ret;
3656 }
3657
3658 GSList *client_search_all_top_parents(ObClient *self)
3659 {
3660     return client_search_all_top_parents_internal(self, FALSE, 0);
3661 }
3662
3663 GSList *client_search_all_top_parents_layer(ObClient *self)
3664 {
3665     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3666 }
3667
3668 ObClient *client_search_focus_parent(ObClient *self)
3669 {
3670     if (self->transient_for) {
3671         if (self->transient_for != OB_TRAN_GROUP) {
3672             if (client_focused(self->transient_for))
3673                 return self->transient_for;
3674         } else {
3675             GSList *it;
3676
3677             for (it = self->group->members; it; it = g_slist_next(it)) {
3678                 ObClient *c = it->data;
3679
3680                 /* checking transient_for prevents infinate loops! */
3681                 if (c != self && !c->transient_for)
3682                     if (client_focused(c))
3683                         return c;
3684             }
3685         }
3686     }
3687
3688     return NULL;
3689 }
3690
3691 ObClient *client_search_parent(ObClient *self, ObClient *search)
3692 {
3693     if (self->transient_for) {
3694         if (self->transient_for != OB_TRAN_GROUP) {
3695             if (self->transient_for == search)
3696                 return search;
3697         } else {
3698             GSList *it;
3699
3700             for (it = self->group->members; it; it = g_slist_next(it)) {
3701                 ObClient *c = it->data;
3702
3703                 /* checking transient_for prevents infinate loops! */
3704                 if (c != self && !c->transient_for)
3705                     if (c == search)
3706                         return search;
3707             }
3708         }
3709     }
3710
3711     return NULL;
3712 }
3713
3714 ObClient *client_search_transient(ObClient *self, ObClient *search)
3715 {
3716     GSList *sit;
3717
3718     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3719         if (sit->data == search)
3720             return search;
3721         if (client_search_transient(sit->data, search))
3722             return search;
3723     }
3724     return NULL;
3725 }
3726
3727 #define WANT_EDGE(cur, c) \
3728             if(cur == c)                                                      \
3729                 continue;                                                     \
3730             if(!client_normal(cur))                                           \
3731                 continue;                                                     \
3732             if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL) \
3733                 continue;                                                     \
3734             if(cur->iconic)                                                   \
3735                 continue;
3736
3737 #define HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end) \
3738             if ((his_edge_start >= my_edge_start && \
3739                  his_edge_start <= my_edge_end) ||  \
3740                 (my_edge_start >= his_edge_start && \
3741                  my_edge_start <= his_edge_end))    \
3742                 dest = his_offset;
3743
3744 /* finds the nearest edge in the given direction from the current client
3745  * note to self: the edge is the -frame- edge (the actual one), not the
3746  * client edge.
3747  */
3748 gint client_directional_edge_search(ObClient *c, ObDirection dir, gboolean hang)
3749 {
3750     gint dest, monitor_dest;
3751     gint my_edge_start, my_edge_end, my_offset;
3752     GList *it;
3753     Rect *a, *monitor;
3754
3755     if(!client_list)
3756         return -1;
3757
3758     a = screen_area(c->desktop);
3759     monitor = screen_area_monitor(c->desktop, client_monitor(c));
3760
3761     switch(dir) {
3762     case OB_DIRECTION_NORTH:
3763         my_edge_start = c->frame->area.x;
3764         my_edge_end = c->frame->area.x + c->frame->area.width;
3765         my_offset = c->frame->area.y + (hang ? c->frame->area.height : 0);
3766
3767         /* default: top of screen */
3768         dest = a->y + (hang ? c->frame->area.height : 0);
3769         monitor_dest = monitor->y + (hang ? c->frame->area.height : 0);
3770         /* if the monitor edge comes before the screen edge, */
3771         /* use that as the destination instead. (For xinerama) */
3772         if (monitor_dest != dest && my_offset > monitor_dest)
3773             dest = monitor_dest;
3774
3775         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3776             gint his_edge_start, his_edge_end, his_offset;
3777             ObClient *cur = it->data;
3778
3779             WANT_EDGE(cur, c)
3780
3781             his_edge_start = cur->frame->area.x;
3782             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3783             his_offset = cur->frame->area.y +
3784                          (hang ? 0 : cur->frame->area.height);
3785
3786             if(his_offset + 1 > my_offset)
3787                 continue;
3788
3789             if(his_offset < dest)
3790                 continue;
3791
3792             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3793         }
3794         break;
3795     case OB_DIRECTION_SOUTH:
3796         my_edge_start = c->frame->area.x;
3797         my_edge_end = c->frame->area.x + c->frame->area.width;
3798         my_offset = c->frame->area.y + (hang ? 0 : c->frame->area.height);
3799
3800         /* default: bottom of screen */
3801         dest = a->y + a->height - (hang ? c->frame->area.height : 0);
3802         monitor_dest = monitor->y + monitor->height -
3803                        (hang ? c->frame->area.height : 0);
3804         /* if the monitor edge comes before the screen edge, */
3805         /* use that as the destination instead. (For xinerama) */
3806         if (monitor_dest != dest && my_offset < monitor_dest)
3807             dest = monitor_dest;
3808
3809         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3810             gint his_edge_start, his_edge_end, his_offset;
3811             ObClient *cur = it->data;
3812
3813             WANT_EDGE(cur, c)
3814
3815             his_edge_start = cur->frame->area.x;
3816             his_edge_end = cur->frame->area.x + cur->frame->area.width;
3817             his_offset = cur->frame->area.y +
3818                          (hang ? cur->frame->area.height : 0);
3819
3820
3821             if(his_offset - 1 < my_offset)
3822                 continue;
3823
3824             if(his_offset > dest)
3825                 continue;
3826
3827             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3828         }
3829         break;
3830     case OB_DIRECTION_WEST:
3831         my_edge_start = c->frame->area.y;
3832         my_edge_end = c->frame->area.y + c->frame->area.height;
3833         my_offset = c->frame->area.x + (hang ? c->frame->area.width : 0);
3834
3835         /* default: leftmost egde of screen */
3836         dest = a->x + (hang ? c->frame->area.width : 0);
3837         monitor_dest = monitor->x + (hang ? c->frame->area.width : 0);
3838         /* if the monitor edge comes before the screen edge, */
3839         /* use that as the destination instead. (For xinerama) */
3840         if (monitor_dest != dest && my_offset > monitor_dest)
3841             dest = monitor_dest;
3842
3843         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3844             gint his_edge_start, his_edge_end, his_offset;
3845             ObClient *cur = it->data;
3846
3847             WANT_EDGE(cur, c)
3848
3849             his_edge_start = cur->frame->area.y;
3850             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3851             his_offset = cur->frame->area.x +
3852                          (hang ? 0 : cur->frame->area.width);
3853
3854             if(his_offset + 1 > my_offset)
3855                 continue;
3856
3857             if(his_offset < dest)
3858                 continue;
3859
3860             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3861         }
3862        break;
3863     case OB_DIRECTION_EAST:
3864         my_edge_start = c->frame->area.y;
3865         my_edge_end = c->frame->area.y + c->frame->area.height;
3866         my_offset = c->frame->area.x + (hang ? 0 : c->frame->area.width);
3867
3868         /* default: rightmost edge of screen */
3869         dest = a->x + a->width - (hang ? c->frame->area.width : 0);
3870         monitor_dest = monitor->x + monitor->width -
3871                        (hang ? c->frame->area.width : 0);
3872         /* if the monitor edge comes before the screen edge, */
3873         /* use that as the destination instead. (For xinerama) */
3874         if (monitor_dest != dest && my_offset < monitor_dest)
3875             dest = monitor_dest;
3876
3877         for(it = client_list; it && my_offset != dest; it = g_list_next(it)) {
3878             gint his_edge_start, his_edge_end, his_offset;
3879             ObClient *cur = it->data;
3880
3881             WANT_EDGE(cur, c)
3882
3883             his_edge_start = cur->frame->area.y;
3884             his_edge_end = cur->frame->area.y + cur->frame->area.height;
3885             his_offset = cur->frame->area.x +
3886                          (hang ? cur->frame->area.width : 0);
3887
3888             if(his_offset - 1 < my_offset)
3889                 continue;
3890
3891             if(his_offset > dest)
3892                 continue;
3893
3894             HIT_EDGE(my_edge_start, my_edge_end, his_edge_start, his_edge_end)
3895         }
3896         break;
3897     case OB_DIRECTION_NORTHEAST:
3898     case OB_DIRECTION_SOUTHEAST:
3899     case OB_DIRECTION_NORTHWEST:
3900     case OB_DIRECTION_SOUTHWEST:
3901         /* not implemented */
3902     default:
3903         g_assert_not_reached();
3904         dest = 0; /* suppress warning */
3905     }
3906     return dest;
3907 }
3908
3909 ObClient* client_under_pointer()
3910 {
3911     gint x, y;
3912     GList *it;
3913     ObClient *ret = NULL;
3914
3915     if (screen_pointer_pos(&x, &y)) {
3916         for (it = stacking_list; it; it = g_list_next(it)) {
3917             if (WINDOW_IS_CLIENT(it->data)) {
3918                 ObClient *c = WINDOW_AS_CLIENT(it->data);
3919                 if (c->frame->visible &&
3920                     /* ignore all animating windows */
3921                     !frame_iconify_animating(c->frame) &&
3922                     RECT_CONTAINS(c->frame->area, x, y))
3923                 {
3924                     ret = c;
3925                     break;
3926                 }
3927             }
3928         }
3929     }
3930     return ret;
3931 }
3932
3933 gboolean client_has_group_siblings(ObClient *self)
3934 {
3935     return self->group && self->group->members->next;
3936 }