openbox/client.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    client.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "client.h"
  21 #include "debug.h"
  22 #include "startupnotify.h"
  23 #include "dock.h"
  24 #include "xerror.h"
  25 #include "screen.h"
  26 #include "moveresize.h"
  27 #include "ping.h"
  28 #include "place.h"
  29 #include "prop.h"
  30 #include "extensions.h"
  31 #include "frame.h"
  32 #include "session.h"
  33 #include "event.h"
  34 #include "grab.h"
  35 #include "focus.h"
  36 #include "stacking.h"
  37 #include "openbox.h"
  38 #include "group.h"
  39 #include "config.h"
  40 #include "menuframe.h"
  41 #include "keyboard.h"
  42 #include "mouse.h"
  43 #include "render/render.h"
  44 #include "gettext.h"
  45
  46 #ifdef HAVE_UNISTD_H
  47 #  include <unistd.h>
  48 #endif
  49
  50 #ifdef HAVE_SIGNAL_H
  51 #  include <signal.h> /* for kill() */
  52 #endif
  53
  54 #include <glib.h>
  55 #include <X11/Xutil.h>
  56
  57 /*! The event mask to grab on client windows */
  58 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
  59                           ColormapChangeMask)
  60
  61 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  62                                 ButtonMotionMask)
  63
  64 typedef struct
  65 {
  66     ObClientCallback func;
  67     gpointer data;
  68 } ClientCallback;
  69
  70 GList            *client_list          = NULL;
  71
  72 static GSList *client_destroy_notifies = NULL;
  73
  74 static void client_get_all(ObClient *self, gboolean real);
  75 static void client_get_startup_id(ObClient *self);
  76 static void client_get_session_ids(ObClient *self);
  77 static void client_get_area(ObClient *self);
  78 static void client_get_desktop(ObClient *self);
  79 static void client_get_state(ObClient *self);
  80 static void client_get_shaped(ObClient *self);
  81 static void client_get_mwm_hints(ObClient *self);
  82 static void client_get_colormap(ObClient *self);
  83 static void client_set_desktop_recursive(ObClient *self,
  84                                          guint target,
  85                                          gboolean donthide,
  86                                          gboolean dontraise);
  87 static void client_change_allowed_actions(ObClient *self);
  88 static void client_change_state(ObClient *self);
  89 static void client_change_wm_state(ObClient *self);
  90 static void client_apply_startup_state(ObClient *self,
  91                                        gint x, gint y, gint w, gint h);
  92 static void client_restore_session_state(ObClient *self);
  93 static gboolean client_restore_session_stacking(ObClient *self);
  94 static ObAppSettings *client_get_settings_state(ObClient *self);
  95 static void client_update_transient_tree(ObClient *self,
  96                                          ObGroup *oldgroup, ObGroup *newgroup,
  97                                          gboolean oldgtran, gboolean newgtran,
  98                                          ObClient* oldparent,
  99                                          ObClient *newparent);
 100 static void client_present(ObClient *self, gboolean here, gboolean raise,
 101                            gboolean unshade);
 102 static GSList *client_search_all_top_parents_internal(ObClient *self,
 103                                                       gboolean bylayer,
 104                                                       ObStackingLayer layer);
 105 static void client_call_notifies(ObClient *self, GSList *list);
 106 static void client_ping_event(ObClient *self, gboolean dead);
 107
 108
 109 void client_startup(gboolean reconfig)
 110 {
 111     if (reconfig) return;
 112
 113     client_set_list();
 114 }
 115
 116 void client_shutdown(gboolean reconfig)
 117 {
 118     if (reconfig) return;
 119 }
 120
 121 static void client_call_notifies(ObClient *self, GSList *list)
 122 {
 123     GSList *it;
 124
 125     for (it = list; it; it = g_slist_next(it)) {
 126         ClientCallback *d = it->data;
 127         d->func(self, d->data);
 128     }
 129 }
 130
 131 void client_add_destroy_notify(ObClientCallback func, gpointer data)
 132 {
 133     ClientCallback *d = g_new(ClientCallback, 1);
 134     d->func = func;
 135     d->data = data;
 136     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
 137 }
 138
 139 void client_remove_destroy_notify(ObClientCallback func)
 140 {
 141     GSList *it;
 142
 143     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
 144         ClientCallback *d = it->data;
 145         if (d->func == func) {
 146             g_free(d);
 147             client_destroy_notifies =
 148                 g_slist_delete_link(client_destroy_notifies, it);
 149             break;
 150         }
 151     }
 152 }
 153
 154 void client_set_list(void)
 155 {
 156     Window *windows, *win_it;
 157     GList *it;
 158     guint size = g_list_length(client_list);
 159
 160     /* create an array of the window ids */
 161     if (size > 0) {
 162         windows = g_new(Window, size);
 163         win_it = windows;
 164         for (it = client_list; it; it = g_list_next(it), ++win_it)
 165             *win_it = ((ObClient*)it->data)->window;
 166     } else
 167         windows = NULL;
 168
 169     PROP_SETA32(RootWindow(ob_display, ob_screen),
 170                 net_client_list, window, (gulong*)windows, size);
 171
 172     if (windows)
 173         g_free(windows);
 174
 175     stacking_set_list();
 176 }
 177
 178 void client_manage_all(void)
 179 {
 180     guint i, j, nchild;
 181     Window w, *children;
 182     XWMHints *wmhints;
 183     XWindowAttributes attrib;
 184
 185     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
 186                &w, &w, &children, &nchild);
 187
 188     /* remove all icon windows from the list */
 189     for (i = 0; i < nchild; i++) {
 190         if (children[i] == None) continue;
 191         wmhints = XGetWMHints(ob_display, children[i]);
 192         if (wmhints) {
 193             if ((wmhints->flags & IconWindowHint) &&
 194                 (wmhints->icon_window != children[i]))
 195                 for (j = 0; j < nchild; j++)
 196                     if (children[j] == wmhints->icon_window) {
 197                         children[j] = None;
 198                         break;
 199                     }
 200             XFree(wmhints);
 201         }
 202     }
 203
 204     /* manage windows in reverse order from how they were originally mapped.
 205        this is an attempt to manage children windows before their parents, so
 206        that when the parent is mapped, it can find the child */
 207     for (i = 0; i < nchild; ++i) {
 208         if (children[i] == None)
 209             continue;
 210         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 211             if (attrib.override_redirect) continue;
 212
 213             if (attrib.map_state != IsUnmapped)
 214                 client_manage(children[i]);
 215         }
 216     }
 217     XFree(children);
 218 }
 219
 220 void client_manage(Window window)
 221 {
 222     ObClient *self;
 223     XEvent e;
 224     XWindowAttributes attrib;
 225     XSetWindowAttributes attrib_set;
 226     XWMHints *wmhint;
 227     gboolean activate = FALSE;
 228     ObAppSettings *settings;
 229     gboolean transient = FALSE;
 230     Rect place, *monitor;
 231     Time launch_time, map_time;
 232
 233     grab_server(TRUE);
 234
 235     /* check if it has already been unmapped by the time we started
 236        mapping. the grab does a sync so we don't have to here */
 237     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 238         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
 239     {
 240         XPutBackEvent(ob_display, &e);
 241
 242         ob_debug("Trying to manage unmapped window. Aborting that.\n");
 243         grab_server(FALSE);
 244         return; /* don't manage it */
 245     }
 246
 247     /* make sure it isn't an override-redirect window */
 248     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 249         attrib.override_redirect)
 250     {
 251         grab_server(FALSE);
 252         return; /* don't manage it */
 253     }
 254
 255     /* is the window a docking app */
 256     if ((wmhint = XGetWMHints(ob_display, window))) {
 257         if ((wmhint->flags & StateHint) &&
 258             wmhint->initial_state == WithdrawnState)
 259         {
 260             dock_add(window, wmhint);
 261             grab_server(FALSE);
 262             XFree(wmhint);
 263             return;
 264         }
 265         XFree(wmhint);
 266     }
 267
 268     ob_debug("Managing window: 0x%lx\n", window);
 269
 270     map_time = event_get_server_time();
 271
 272     /* choose the events we want to receive on the CLIENT window */
 273     attrib_set.event_mask = CLIENT_EVENTMASK;
 274     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 275     XChangeWindowAttributes(ob_display, window,
 276                             CWEventMask|CWDontPropagate, &attrib_set);
 277
 278     /* create the ObClient struct, and populate it from the hints on the
 279        window */
 280     self = g_new0(ObClient, 1);
 281     self->obwin.type = Window_Client;
 282     self->window = window;
 283
 284     /* non-zero defaults */
 285     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
 286     self->gravity = NorthWestGravity;
 287     self->desktop = screen_num_desktops; /* always an invalid value */
 288
 289     /* get all the stuff off the window */
 290     client_get_all(self, TRUE);
 291
 292     ob_debug("Window type: %d\n", self->type);
 293     ob_debug("Window group: 0x%x\n", self->group?self->group->leader:0);
 294
 295     /* now we have all of the window's information so we can set this up.
 296        do this before creating the frame, so it can tell that we are still
 297        mapping and doesn't go applying things right away */
 298     client_setup_decor_and_functions(self, FALSE);
 299
 300     /* specify that if we exit, the window should not be destroyed and
 301        should be reparented back to root automatically */
 302     XChangeSaveSet(ob_display, window, SetModeInsert);
 303
 304     /* create the decoration frame for the client window */
 305     self->frame = frame_new(self);
 306
 307     frame_grab_client(self->frame);
 308
 309     /* we've grabbed everything and set everything that we need to at mapping
 310        time now */
 311     grab_server(FALSE);
 312
 313     /* per-app settings override stuff from client_get_all, and return the
 314        settings for other uses too. the returned settings is a shallow copy,
 315        that needs to be freed with g_free(). */
 316     settings = client_get_settings_state(self);
 317     /* the session should get the last say though */
 318     client_restore_session_state(self);
 319
 320     /* tell startup notification that this app started */
 321     launch_time = sn_app_started(self->startup_id, self->class, self->name);
 322
 323     /* do this after we have a frame.. it uses the frame to help determine the
 324        WM_STATE to apply. */
 325     client_change_state(self);
 326
 327     /* add ourselves to the focus order */
 328     focus_order_add_new(self);
 329
 330     /* do this to add ourselves to the stacking list in a non-intrusive way */
 331     client_calc_layer(self);
 332
 333     /* focus the new window? */
 334     if (ob_state() != OB_STATE_STARTING &&
 335         (!self->session || self->session->focused) &&
 336         /* this means focus=true for window is same as config_focus_new=true */
 337         ((config_focus_new || (settings && settings->focus == 1)) ||
 338          client_search_focus_tree_full(self)) &&
 339         /* this checks for focus=false for the window */
 340         (!settings || settings->focus != 0) &&
 341         focus_valid_target(self, FALSE, FALSE, TRUE, FALSE, FALSE))
 342     {
 343         activate = TRUE;
 344     }
 345
 346     /* remove the client's border */
 347     XSetWindowBorderWidth(ob_display, self->window, 0);
 348
 349     /* adjust the frame to the client's size before showing or placing
 350        the window */
 351     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
 352     frame_adjust_client_area(self->frame);
 353
 354     /* where the frame was placed is where the window was originally */
 355     place = self->area;
 356     monitor = screen_physical_area_monitor(screen_find_monitor(&place));
 357
 358     /* figure out placement for the window if the window is new */
 359     if (ob_state() == OB_STATE_RUNNING) {
 360         ob_debug("Positioned: %s @ %d %d\n",
 361                  (!self->positioned ? "no" :
 362                   (self->positioned == PPosition ? "program specified" :
 363                    (self->positioned == USPosition ? "user specified" :
 364                     (self->positioned == (PPosition | USPosition) ?
 365                      "program + user specified" :
 366                      "BADNESS !?")))), place.x, place.y);
 367
 368         ob_debug("Sized: %s @ %d %d\n",
 369                  (!self->sized ? "no" :
 370                   (self->sized == PSize ? "program specified" :
 371                    (self->sized == USSize ? "user specified" :
 372                     (self->sized == (PSize | USSize) ?
 373                      "program + user specified" :
 374                      "BADNESS !?")))), place.width, place.height);
 375
 376         /* splash screens are also returned as TRUE for transient,
 377            and so will be forced on screen below */
 378         transient = place_client(self, &place.x, &place.y, settings);
 379
 380         /* make sure the window is visible. */
 381         client_find_onscreen(self, &place.x, &place.y,
 382                              place.width, place.height,
 383                              /* non-normal clients has less rules, and
 384                                 windows that are being restored from a
 385                                 session do also. we can assume you want
 386                                 it back where you saved it. Clients saying
 387                                 they placed themselves are subjected to
 388                                 harder rules, ones that are placed by
 389                                 place.c or by the user are allowed partially
 390                                 off-screen and on xinerama divides (ie,
 391                                 it is up to the placement routines to avoid
 392                                 the xinerama divides)
 393
 394                                 splash screens get "transient" set to TRUE by
 395                                 the place_client call
 396                              */
 397                              ob_state() == OB_STATE_RUNNING &&
 398                              (transient ||
 399                               (!((self->positioned & USPosition) ||
 400                                  (settings && settings->pos_given)) &&
 401                                client_normal(self) &&
 402                                !self->session &&
 403                                /* don't move oldschool fullscreen windows to
 404                                   fit inside the struts (fixes Acroread, which
 405                                   makes its fullscreen window fit the screen
 406                                   but it is not USSize'd or USPosition'd) */
 407                                !(self->decorations == 0 &&
 408                                  RECT_EQUAL(place, *monitor)))));
 409     }
 410
 411     /* if the window isn't user-sized, then make it fit inside
 412        the visible screen area on its monitor. Use basically the same rules
 413        for forcing the window on screen in the client_find_onscreen call.
 414
 415        do this after place_client, it chooses the monitor!
 416
 417        splash screens get "transient" set to TRUE by
 418        the place_client call
 419     */
 420     if (ob_state() == OB_STATE_RUNNING &&
 421         (transient ||
 422          (!(self->sized & USSize || self->positioned & USPosition) &&
 423           client_normal(self) &&
 424           !self->session &&
 425           /* don't shrink oldschool fullscreen windows to fit inside the
 426              struts (fixes Acroread, which makes its fullscreen window
 427              fit the screen but it is not USSize'd or USPosition'd) */
 428           !(self->decorations == 0 && RECT_EQUAL(place, *monitor)))))
 429     {
 430         Rect *a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &place);
 431
 432         /* get the size of the frame */
 433         place.width += self->frame->size.left + self->frame->size.right;
 434         place.height += self->frame->size.top + self->frame->size.bottom;
 435
 436         /* fit the window inside the area */
 437         place.width = MIN(place.width, a->width);
 438         place.height = MIN(place.height, a->height);
 439
 440         ob_debug("setting window size to %dx%d\n", place.width, place.height);
 441
 442         /* get the size of the client back */
 443         place.width -= self->frame->size.left + self->frame->size.right;
 444         place.height -= self->frame->size.top + self->frame->size.bottom;
 445
 446         g_free(a);
 447     }
 448
 449     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
 450              "some restrictions may apply\n",
 451              self->window, place.x, place.y, place.width, place.height);
 452     if (self->session)
 453         ob_debug("  but session requested %d, %d  %d x %d instead, "
 454                  "overriding\n",
 455                  self->session->x, self->session->y,
 456                  self->session->w, self->session->h);
 457
 458     /* do this after the window is placed, so the premax/prefullscreen numbers
 459        won't be all wacko!!
 460
 461        this also places the window
 462     */
 463     client_apply_startup_state(self, place.x, place.y,
 464                                place.width, place.height);
 465
 466     g_free(monitor);
 467     monitor = NULL;
 468
 469     ob_debug_type(OB_DEBUG_FOCUS, "Going to try activate new window? %s\n",
 470                   activate ? "yes" : "no");
 471     if (activate) {
 472         gboolean raise = FALSE;
 473
 474         /* This is focus stealing prevention */
 475         ob_debug_type(OB_DEBUG_FOCUS,
 476                       "Want to focus new window 0x%x at time %u "
 477                       "launched at %u (last user interaction time %u)\n",
 478                       self->window, map_time, launch_time,
 479                       event_last_user_time);
 480
 481         if (menu_frame_visible || moveresize_in_progress) {
 482             activate = FALSE;
 483             raise = TRUE;
 484             ob_debug_type(OB_DEBUG_FOCUS,
 485                           "Not focusing the window because the user is inside "
 486                           "an Openbox menu or is move/resizing a window and "
 487                           "we don't want to interrupt them\n");
 488         }
 489
 490         /* if it's on another desktop */
 491         else if (!(self->desktop == screen_desktop ||
 492                    self->desktop == DESKTOP_ALL) &&
 493                  /* the timestamp is from before you changed desktops */
 494                  launch_time && screen_desktop_user_time &&
 495                  !event_time_after(launch_time, screen_desktop_user_time))
 496         {
 497             activate = FALSE;
 498             raise = TRUE;
 499             ob_debug_type(OB_DEBUG_FOCUS,
 500                           "Not focusing the window because its on another "
 501                           "desktop\n");
 502         }
 503         /* If something is focused, and it's not our relative... */
 504         else if (focus_client && client_search_focus_tree_full(self) == NULL &&
 505                  client_search_focus_group_full(self) == NULL)
 506         {
 507             /* If the user is working in another window right now, then don't
 508                steal focus */
 509             if (event_last_user_time && launch_time &&
 510                 event_time_after(event_last_user_time, launch_time) &&
 511                 event_last_user_time != launch_time &&
 512                 event_time_after(event_last_user_time,
 513                                  map_time - OB_EVENT_USER_TIME_DELAY))
 514             {
 515                 activate = FALSE;
 516                 ob_debug_type(OB_DEBUG_FOCUS,
 517                               "Not focusing the window because the user is "
 518                               "working in another window\n");
 519             }
 520             /* If its a transient (and its parents aren't focused) */
 521             else if (client_has_parent(self)) {
 522                 activate = FALSE;
 523                 ob_debug_type(OB_DEBUG_FOCUS,
 524                               "Not focusing the window because it is a "
 525                               "transient, and its relatives aren't focused\n");
 526             }
 527             /* Don't steal focus from globally active clients.
 528                I stole this idea from KWin. It seems nice.
 529              */
 530             else if (!(focus_client->can_focus ||
 531                        focus_client->focus_notify))
 532             {
 533                 activate = FALSE;
 534                 ob_debug_type(OB_DEBUG_FOCUS,
 535                               "Not focusing the window because a globally "
 536                               "active client has focus\n");
 537             }
 538             /* Don't move focus if it's not going to go to this window
 539                anyway */
 540             else if (client_focus_target(self) != self) {
 541                 activate = FALSE;
 542                 raise = TRUE;
 543                 ob_debug_type(OB_DEBUG_FOCUS,
 544                               "Not focusing the window because another window "
 545                               "would get the focus anyway\n");
 546             }
 547             else if (!(self->desktop == screen_desktop ||
 548                        self->desktop == DESKTOP_ALL))
 549             {
 550                 activate = FALSE;
 551                 raise = TRUE;
 552                 ob_debug_type(OB_DEBUG_FOCUS,
 553                               "Not focusing the window because it is on "
 554                               "another desktop and no relatives are focused ");
 555             }
 556         }
 557
 558         if (!activate) {
 559             ob_debug_type(OB_DEBUG_FOCUS,
 560                           "Focus stealing prevention activated for %s at "
 561                           "time %u (last user interactioon time %u)\n",
 562                           self->title, map_time, event_last_user_time);
 563             /* if the client isn't focused, then hilite it so the user
 564                knows it is there */
 565             client_hilite(self, TRUE);
 566             /* we may want to raise it even tho we're not activating it */
 567             if (raise && !client_restore_session_stacking(self))
 568                 stacking_raise(CLIENT_AS_WINDOW(self));
 569         }
 570     }
 571     else {
 572         /* This may look rather odd. Well it's because new windows are added
 573            to the stacking order non-intrusively. If we're not going to focus
 574            the new window or hilite it, then we raise it to the top. This will
 575            take affect for things that don't get focused like splash screens.
 576            Also if you don't have focus_new enabled, then it's going to get
 577            raised to the top. Legacy begets legacy I guess?
 578         */
 579         if (!client_restore_session_stacking(self))
 580             stacking_raise(CLIENT_AS_WINDOW(self));
 581     }
 582
 583     mouse_grab_for_client(self, TRUE);
 584
 585     /* this has to happen before we try focus the window, but we want it to
 586        happen after the client's stacking has been determined or it looks bad
 587     */
 588     {
 589         gulong ignore_start;
 590         if (!config_focus_under_mouse)
 591             ignore_start = event_start_ignore_all_enters();
 592
 593         client_show(self);
 594
 595         if (!config_focus_under_mouse)
 596             event_end_ignore_all_enters(ignore_start);
 597     }
 598
 599     if (activate) {
 600         gboolean stacked = client_restore_session_stacking(self);
 601         client_present(self, FALSE, !stacked, TRUE);
 602     }
 603
 604     /* add to client list/map */
 605     client_list = g_list_append(client_list, self);
 606     g_hash_table_insert(window_map, &self->window, self);
 607
 608     /* this has to happen after we're in the client_list */
 609     if (STRUT_EXISTS(self->strut))
 610         screen_update_areas();
 611
 612     /* update the list hints */
 613     client_set_list();
 614
 615     /* watch for when the application stops responding.  only do this for
 616        normal windows, i.e. windows which have titlebars and close buttons
 617        and things like that.
 618        we don't need to stop pinging on unmanage, because it will be handled
 619        automatically by the destroy callback!
 620     */
 621     if (self->ping && client_normal(self))
 622         ping_start(self, client_ping_event);
 623
 624     /* free the ObAppSettings shallow copy */
 625     g_free(settings);
 626
 627     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
 628              window, self->frame->window, self->class);
 629
 630     return;
 631 }
 632
 633
 634 ObClient *client_fake_manage(Window window)
 635 {
 636     ObClient *self;
 637     ObAppSettings *settings;
 638
 639     ob_debug("Pretend-managing window: %lx\n", window);
 640
 641     /* do this minimal stuff to figure out the client's decorations */
 642
 643     self = g_new0(ObClient, 1);
 644     self->window = window;
 645
 646     client_get_all(self, FALSE);
 647     /* per-app settings override stuff, and return the settings for other
 648        uses too. this returns a shallow copy that needs to be freed */
 649     settings = client_get_settings_state(self);
 650
 651     client_setup_decor_and_functions(self, FALSE);
 652
 653     /* create the decoration frame for the client window and adjust its size */
 654     self->frame = frame_new(self);
 655     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
 656
 657     ob_debug("gave extents left %d right %d top %d bottom %d\n",
 658              self->frame->size.left, self->frame->size.right,
 659              self->frame->size.top, self->frame->size.bottom);
 660
 661     /* free the ObAppSettings shallow copy */
 662     g_free(settings);
 663
 664     return self;
 665 }
 666
 667 void client_unmanage_all(void)
 668 {
 669     while (client_list != NULL)
 670         client_unmanage(client_list->data);
 671 }
 672
 673 void client_unmanage(ObClient *self)
 674 {
 675     guint j;
 676     GSList *it;
 677     gulong ignore_start;
 678
 679     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
 680              self->window, self->frame->window,
 681              self->class, self->title ? self->title : "");
 682
 683     g_assert(self != NULL);
 684
 685     /* we dont want events no more. do this before hiding the frame so we
 686        don't generate more events */
 687     XSelectInput(ob_display, self->window, NoEventMask);
 688
 689     /* ignore enter events from the unmap so it doesnt mess with the focus */
 690     if (!config_focus_under_mouse)
 691         ignore_start = event_start_ignore_all_enters();
 692
 693     frame_hide(self->frame);
 694     /* flush to send the hide to the server quickly */
 695     XFlush(ob_display);
 696
 697     if (!config_focus_under_mouse)
 698         event_end_ignore_all_enters(ignore_start);
 699
 700     mouse_grab_for_client(self, FALSE);
 701
 702     /* remove the window from our save set */
 703     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 704
 705     /* update the focus lists */
 706     focus_order_remove(self);
 707     if (client_focused(self)) {
 708         /* don't leave an invalid focus_client */
 709         focus_client = NULL;
 710     }
 711
 712     client_list = g_list_remove(client_list, self);
 713     stacking_remove(self);
 714     g_hash_table_remove(window_map, &self->window);
 715
 716     /* once the client is out of the list, update the struts to remove its
 717        influence */
 718     if (STRUT_EXISTS(self->strut))
 719         screen_update_areas();
 720
 721     client_call_notifies(self, client_destroy_notifies);
 722
 723     /* tell our parent(s) that we're gone */
 724     for (it = self->parents; it; it = g_slist_next(it))
 725         ((ObClient*)it->data)->transients =
 726             g_slist_remove(((ObClient*)it->data)->transients,self);
 727
 728     /* tell our transients that we're gone */
 729     for (it = self->transients; it; it = g_slist_next(it)) {
 730         ((ObClient*)it->data)->parents =
 731             g_slist_remove(((ObClient*)it->data)->parents, self);
 732         /* we could be keeping our children in a higher layer */
 733         client_calc_layer(it->data);
 734     }
 735
 736     /* remove from its group */
 737     if (self->group) {
 738         group_remove(self->group, self);
 739         self->group = NULL;
 740     }
 741
 742     /* restore the window's original geometry so it is not lost */
 743     {
 744         Rect a;
 745
 746         a = self->area;
 747
 748         if (self->fullscreen)
 749             a = self->pre_fullscreen_area;
 750         else if (self->max_horz || self->max_vert) {
 751             if (self->max_horz) {
 752                 a.x = self->pre_max_area.x;
 753                 a.width = self->pre_max_area.width;
 754             }
 755             if (self->max_vert) {
 756                 a.y = self->pre_max_area.y;
 757                 a.height = self->pre_max_area.height;
 758             }
 759         }
 760
 761         self->fullscreen = self->max_horz = self->max_vert = FALSE;
 762         /* let it be moved and resized no matter what */
 763         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
 764         self->decorations = 0; /* unmanaged windows have no decor */
 765
 766         /* give the client its border back */
 767         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 768
 769         client_move_resize(self, a.x, a.y, a.width, a.height);
 770     }
 771
 772     /* reparent the window out of the frame, and free the frame */
 773     frame_release_client(self->frame);
 774     frame_free(self->frame);
 775     self->frame = NULL;
 776
 777     if (ob_state() != OB_STATE_EXITING) {
 778         /* these values should not be persisted across a window
 779            unmapping/mapping */
 780         PROP_ERASE(self->window, net_wm_desktop);
 781         PROP_ERASE(self->window, net_wm_state);
 782         PROP_ERASE(self->window, wm_state);
 783     } else {
 784         /* if we're left in an unmapped state, the client wont be mapped.
 785            this is bad, since we will no longer be managing the window on
 786            restart */
 787         XMapWindow(ob_display, self->window);
 788     }
 789
 790     /* these should not be left on the window ever.  other window managers
 791        don't necessarily use them and it will mess them up (like compiz) */
 792     PROP_ERASE(self->window, net_wm_visible_name);
 793     PROP_ERASE(self->window, net_wm_visible_icon_name);
 794
 795     /* update the list hints */
 796     client_set_list();
 797
 798     ob_debug("Unmanaged window 0x%lx\n", self->window);
 799
 800     /* free all data allocated in the client struct */
 801     g_slist_free(self->transients);
 802     for (j = 0; j < self->nicons; ++j)
 803         g_free(self->icons[j].data);
 804     if (self->nicons > 0)
 805         g_free(self->icons);
 806     g_free(self->startup_id);
 807     g_free(self->wm_command);
 808     g_free(self->title);
 809     g_free(self->icon_title);
 810     g_free(self->name);
 811     g_free(self->class);
 812     g_free(self->role);
 813     g_free(self->client_machine);
 814     g_free(self->sm_client_id);
 815     g_free(self);
 816 }
 817
 818 void client_fake_unmanage(ObClient *self)
 819 {
 820     /* this is all that got allocated to get the decorations */
 821
 822     frame_free(self->frame);
 823     g_free(self);
 824 }
 825
 826 /*! Returns a new structure containing the per-app settings for this client.
 827   The returned structure needs to be freed with g_free. */
 828 static ObAppSettings *client_get_settings_state(ObClient *self)
 829 {
 830     ObAppSettings *settings;
 831     GSList *it;
 832
 833     settings = config_create_app_settings();
 834
 835     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
 836         ObAppSettings *app = it->data;
 837         gboolean match = TRUE;
 838
 839         g_assert(app->name != NULL || app->class != NULL);
 840
 841         /* we know that either name or class is not NULL so it will have to
 842            match to use the rule */
 843         if (app->name &&
 844             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
 845             match = FALSE;
 846         else if (app->class &&
 847                 !g_pattern_match(app->class,
 848                                  strlen(self->class), self->class, NULL))
 849             match = FALSE;
 850         else if (app->role &&
 851                  !g_pattern_match(app->role,
 852                                   strlen(self->role), self->role, NULL))
 853             match = FALSE;
 854
 855         if (match) {
 856             ob_debug("Window matching: %s\n", app->name);
 857
 858             /* copy the settings to our struct, overriding the existing
 859                settings if they are not defaults */
 860             config_app_settings_copy_non_defaults(app, settings);
 861         }
 862     }
 863
 864     if (settings->shade != -1)
 865         self->shaded = !!settings->shade;
 866     if (settings->decor != -1)
 867         self->undecorated = !settings->decor;
 868     if (settings->iconic != -1)
 869         self->iconic = !!settings->iconic;
 870     if (settings->skip_pager != -1)
 871         self->skip_pager = !!settings->skip_pager;
 872     if (settings->skip_taskbar != -1)
 873         self->skip_taskbar = !!settings->skip_taskbar;
 874
 875     if (settings->max_vert != -1)
 876         self->max_vert = !!settings->max_vert;
 877     if (settings->max_horz != -1)
 878         self->max_horz = !!settings->max_horz;
 879
 880     if (settings->fullscreen != -1)
 881         self->fullscreen = !!settings->fullscreen;
 882
 883     if (settings->desktop) {
 884         if (settings->desktop == DESKTOP_ALL)
 885             self->desktop = settings->desktop;
 886         else if (settings->desktop > 0 &&
 887                  settings->desktop <= screen_num_desktops)
 888             self->desktop = settings->desktop - 1;
 889     }
 890
 891     if (settings->layer == -1) {
 892         self->below = TRUE;
 893         self->above = FALSE;
 894     }
 895     else if (settings->layer == 0) {
 896         self->below = FALSE;
 897         self->above = FALSE;
 898     }
 899     else if (settings->layer == 1) {
 900         self->below = FALSE;
 901         self->above = TRUE;
 902     }
 903     return settings;
 904 }
 905
 906 static void client_restore_session_state(ObClient *self)
 907 {
 908     GList *it;
 909
 910     ob_debug_type(OB_DEBUG_SM,
 911                   "Restore session for client %s\n", self->title);
 912
 913     if (!(it = session_state_find(self))) {
 914         ob_debug_type(OB_DEBUG_SM,
 915                       "Session data not found for client %s\n", self->title);
 916         return;
 917     }
 918
 919     self->session = it->data;
 920
 921     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
 922                   self->title);
 923
 924     RECT_SET_POINT(self->area, self->session->x, self->session->y);
 925     self->positioned = USPosition;
 926     self->sized = USSize;
 927     if (self->session->w > 0)
 928         self->area.width = self->session->w;
 929     if (self->session->h > 0)
 930         self->area.height = self->session->h;
 931     XResizeWindow(ob_display, self->window,
 932                   self->area.width, self->area.height);
 933
 934     self->desktop = (self->session->desktop == DESKTOP_ALL ?
 935                      self->session->desktop :
 936                      MIN(screen_num_desktops - 1, self->session->desktop));
 937     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 938
 939     self->shaded = self->session->shaded;
 940     self->iconic = self->session->iconic;
 941     self->skip_pager = self->session->skip_pager;
 942     self->skip_taskbar = self->session->skip_taskbar;
 943     self->fullscreen = self->session->fullscreen;
 944     self->above = self->session->above;
 945     self->below = self->session->below;
 946     self->max_horz = self->session->max_horz;
 947     self->max_vert = self->session->max_vert;
 948     self->undecorated = self->session->undecorated;
 949 }
 950
 951 static gboolean client_restore_session_stacking(ObClient *self)
 952 {
 953     GList *it, *mypos;
 954
 955     if (!self->session) return FALSE;
 956
 957     mypos = g_list_find(session_saved_state, self->session);
 958     if (!mypos) return FALSE;
 959
 960     /* start above me and look for the first client */
 961     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
 962         GList *cit;
 963
 964         for (cit = client_list; cit; cit = g_list_next(cit)) {
 965             ObClient *c = cit->data;
 966             /* found a client that was in the session, so go below it */
 967             if (c->session == it->data) {
 968                 stacking_below(CLIENT_AS_WINDOW(self),
 969                                CLIENT_AS_WINDOW(cit->data));
 970                 return TRUE;
 971             }
 972         }
 973     }
 974     return FALSE;
 975 }
 976
 977 void client_move_onscreen(ObClient *self, gboolean rude)
 978 {
 979     gint x = self->area.x;
 980     gint y = self->area.y;
 981     if (client_find_onscreen(self, &x, &y,
 982                              self->area.width,
 983                              self->area.height, rude)) {
 984         client_move(self, x, y);
 985     }
 986 }
 987
 988 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
 989                               gboolean rude)
 990 {
 991     gint ox = *x, oy = *y;
 992     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
 993     gint fw, fh;
 994     Rect desired;
 995     guint i;
 996     gboolean found_mon;
 997
 998     RECT_SET(desired, *x, *y, w, h);
 999     frame_rect_to_frame(self->frame, &desired);
1000
1001     /* get where the frame would be */
1002     frame_client_gravity(self->frame, x, y);
1003
1004     /* get the requested size of the window with decorations */
1005     fw = self->frame->size.left + w + self->frame->size.right;
1006     fh = self->frame->size.top + h + self->frame->size.bottom;
1007
1008     /* If rudeness wasn't requested, then still be rude in a given direction
1009        if the client is not moving, only resizing in that direction */
1010     if (!rude) {
1011         Point oldtl, oldtr, oldbl, oldbr;
1012         Point newtl, newtr, newbl, newbr;
1013         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
1014
1015         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
1016         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
1017                   self->frame->area.y + self->frame->area.height - 1);
1018         POINT_SET(oldtr, oldbr.x, oldtl.y);
1019         POINT_SET(oldbl, oldtl.x, oldbr.y);
1020
1021         POINT_SET(newtl, *x, *y);
1022         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
1023         POINT_SET(newtr, newbr.x, newtl.y);
1024         POINT_SET(newbl, newtl.x, newbr.y);
1025
1026         /* is it moving or just resizing from some corner? */
1027         stationary_l = oldtl.x == newtl.x;
1028         stationary_r = oldtr.x == newtr.x;
1029         stationary_t = oldtl.y == newtl.y;
1030         stationary_b = oldbl.y == newbl.y;
1031
1032         /* if left edge is growing and didnt move right edge */
1033         if (stationary_r && newtl.x < oldtl.x)
1034             rudel = TRUE;
1035         /* if right edge is growing and didnt move left edge */
1036         if (stationary_l && newtr.x > oldtr.x)
1037             ruder = TRUE;
1038         /* if top edge is growing and didnt move bottom edge */
1039         if (stationary_b && newtl.y < oldtl.y)
1040             rudet = TRUE;
1041         /* if bottom edge is growing and didnt move top edge */
1042         if (stationary_t && newbl.y > oldbl.y)
1043             rudeb = TRUE;
1044     }
1045
1046     /* we iterate through every monitor that the window is at least partially
1047        on, to make sure it is obeying the rules on them all
1048
1049        if the window does not appear on any monitors, then use the first one
1050     */
1051     found_mon = FALSE;
1052     for (i = 0; i < screen_num_monitors; ++i) {
1053         Rect *a;
1054
1055         if (!screen_physical_area_monitor_contains(i, &desired)) {
1056             if (i < screen_num_monitors - 1 || found_mon)
1057                 continue;
1058
1059             /* the window is not inside any monitor! so just use the first
1060                one */
1061             a = screen_area(self->desktop, 0, NULL);
1062         } else {
1063             found_mon = TRUE;
1064             a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &desired);
1065         }
1066
1067         /* This makes sure windows aren't entirely outside of the screen so you
1068            can't see them at all.
1069            It makes sure 10% of the window is on the screen at least. At don't
1070            let it move itself off the top of the screen, which would hide the
1071            titlebar on you. (The user can still do this if they want too, it's
1072            only limiting the application.
1073         */
1074         if (client_normal(self)) {
1075             if (!self->strut.right && *x + fw/10 >= a->x + a->width - 1)
1076                 *x = a->x + a->width - fw/10;
1077             if (!self->strut.bottom && *y + fh/10 >= a->y + a->height - 1)
1078                 *y = a->y + a->height - fh/10;
1079             if (!self->strut.left && *x + fw*9/10 - 1 < a->x)
1080                 *x = a->x - fw*9/10;
1081             if (!self->strut.top && *y + fh*9/10 - 1 < a->y)
1082                 *y = a->y - fh*9/10;
1083         }
1084
1085         /* This here doesn't let windows even a pixel outside the
1086            struts/screen. When called from client_manage, programs placing
1087            themselves are forced completely onscreen, while things like
1088            xterm -geometry resolution-width/2 will work fine. Trying to
1089            place it completely offscreen will be handled in the above code.
1090            Sorry for this confused comment, i am tired. */
1091         if (rudel && !self->strut.left && *x < a->x) *x = a->x;
1092         if (ruder && !self->strut.right && *x + fw > a->x + a->width)
1093             *x = a->x + MAX(0, a->width - fw);
1094
1095         if (rudet && !self->strut.top && *y < a->y) *y = a->y;
1096         if (rudeb && !self->strut.bottom && *y + fh > a->y + a->height)
1097             *y = a->y + MAX(0, a->height - fh);
1098
1099         g_free(a);
1100     }
1101
1102     /* get where the client should be */
1103     frame_frame_gravity(self->frame, x, y);
1104
1105     return ox != *x || oy != *y;
1106 }
1107
1108 static void client_get_all(ObClient *self, gboolean real)
1109 {
1110     /* this is needed for the frame to set itself up */
1111     client_get_area(self);
1112
1113     /* these things can change the decor and functions of the window */
1114
1115     client_get_mwm_hints(self);
1116     /* this can change the mwmhints for special cases */
1117     client_get_type_and_transientness(self);
1118     client_get_state(self);
1119     client_update_normal_hints(self);
1120
1121     /* get the session related properties, these can change decorations
1122        from per-app settings */
1123     client_get_session_ids(self);
1124
1125     /* now we got everything that can affect the decorations */
1126     if (!real)
1127         return;
1128
1129     /* get this early so we have it for debugging */
1130     client_update_title(self);
1131
1132     client_update_protocols(self);
1133
1134     client_update_wmhints(self);
1135     /* this may have already been called from client_update_wmhints */
1136     if (!self->parents && !self->transient_for_group)
1137         client_update_transient_for(self);
1138
1139     client_get_startup_id(self);
1140     client_get_desktop(self);/* uses transient data/group/startup id if a
1141                                 desktop is not specified */
1142     client_get_shaped(self);
1143
1144     {
1145         /* a couple type-based defaults for new windows */
1146
1147         /* this makes sure that these windows appear on all desktops */
1148         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1149             self->desktop = DESKTOP_ALL;
1150     }
1151
1152 #ifdef SYNC
1153     client_update_sync_request_counter(self);
1154 #endif
1155
1156     client_get_colormap(self);
1157     client_update_strut(self);
1158     client_update_icons(self);
1159     client_update_icon_geometry(self);
1160 }
1161
1162 static void client_get_startup_id(ObClient *self)
1163 {
1164     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1165         if (self->group)
1166             PROP_GETS(self->group->leader,
1167                       net_startup_id, utf8, &self->startup_id);
1168 }
1169
1170 static void client_get_area(ObClient *self)
1171 {
1172     XWindowAttributes wattrib;
1173     Status ret;
1174
1175     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1176     g_assert(ret != BadWindow);
1177
1178     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1179     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1180     self->border_width = wattrib.border_width;
1181
1182     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1183              wattrib.width, wattrib.height, wattrib.border_width);
1184 }
1185
1186 static void client_get_desktop(ObClient *self)
1187 {
1188     guint32 d = screen_num_desktops; /* an always-invalid value */
1189
1190     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1191         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1192             self->desktop = screen_num_desktops - 1;
1193         else
1194             self->desktop = d;
1195         ob_debug("client requested desktop 0x%x\n", self->desktop);
1196     } else {
1197         GSList *it;
1198         gboolean first = TRUE;
1199         guint all = screen_num_desktops; /* not a valid value */
1200
1201         /* if they are all on one desktop, then open it on the
1202            same desktop */
1203         for (it = self->parents; it; it = g_slist_next(it)) {
1204             ObClient *c = it->data;
1205
1206             if (c->desktop == DESKTOP_ALL) continue;
1207
1208             if (first) {
1209                 all = c->desktop;
1210                 first = FALSE;
1211             }
1212             else if (all != c->desktop)
1213                 all = screen_num_desktops; /* make it invalid */
1214         }
1215         if (all != screen_num_desktops) {
1216             self->desktop = all;
1217
1218             ob_debug("client desktop set from parents: 0x%x\n",
1219                      self->desktop);
1220         }
1221         /* try get from the startup-notification protocol */
1222         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1223             if (self->desktop >= screen_num_desktops &&
1224                 self->desktop != DESKTOP_ALL)
1225                 self->desktop = screen_num_desktops - 1;
1226             ob_debug("client desktop set from startup-notification: 0x%x\n",
1227                      self->desktop);
1228         }
1229         /* defaults to the current desktop */
1230         else {
1231             self->desktop = screen_desktop;
1232             ob_debug("client desktop set to the current desktop: %d\n",
1233                      self->desktop);
1234         }
1235     }
1236 }
1237
1238 static void client_get_state(ObClient *self)
1239 {
1240     guint32 *state;
1241     guint num;
1242
1243     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1244         gulong i;
1245         for (i = 0; i < num; ++i) {
1246             if (state[i] == prop_atoms.net_wm_state_modal)
1247                 self->modal = TRUE;
1248             else if (state[i] == prop_atoms.net_wm_state_shaded)
1249                 self->shaded = TRUE;
1250             else if (state[i] == prop_atoms.net_wm_state_hidden)
1251                 self->iconic = TRUE;
1252             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1253                 self->skip_taskbar = TRUE;
1254             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1255                 self->skip_pager = TRUE;
1256             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1257                 self->fullscreen = TRUE;
1258             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1259                 self->max_vert = TRUE;
1260             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1261                 self->max_horz = TRUE;
1262             else if (state[i] == prop_atoms.net_wm_state_above)
1263                 self->above = TRUE;
1264             else if (state[i] == prop_atoms.net_wm_state_below)
1265                 self->below = TRUE;
1266             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1267                 self->demands_attention = TRUE;
1268             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1269                 self->undecorated = TRUE;
1270         }
1271
1272         g_free(state);
1273     }
1274 }
1275
1276 static void client_get_shaped(ObClient *self)
1277 {
1278     self->shaped = FALSE;
1279 #ifdef   SHAPE
1280     if (extensions_shape) {
1281         gint foo;
1282         guint ufoo;
1283         gint s;
1284
1285         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1286
1287         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1288                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1289                            &ufoo);
1290         self->shaped = (s != 0);
1291     }
1292 #endif
1293 }
1294
1295 void client_update_transient_for(ObClient *self)
1296 {
1297     Window t = None;
1298     ObClient *target = NULL;
1299     gboolean trangroup = FALSE;
1300
1301     if (XGetTransientForHint(ob_display, self->window, &t)) {
1302         if (t != self->window) { /* cant be transient to itself! */
1303             target = g_hash_table_lookup(window_map, &t);
1304             /* if this happens then we need to check for it*/
1305             g_assert(target != self);
1306             if (target && !WINDOW_IS_CLIENT(target)) {
1307                 /* this can happen when a dialog is a child of
1308                    a dockapp, for example */
1309                 target = NULL;
1310             }
1311         }
1312
1313         /* Setting the transient_for to Root is actually illegal, however
1314            applications from time have done this to specify transient for
1315            their group */
1316         if (!target && self->group && t == RootWindow(ob_display, ob_screen))
1317             trangroup = TRUE;
1318     } else if (self->group && self->transient)
1319         trangroup = TRUE;
1320
1321     client_update_transient_tree(self, self->group, self->group,
1322                                  self->transient_for_group, trangroup,
1323                                  client_direct_parent(self), target);
1324     self->transient_for_group = trangroup;
1325
1326 }
1327
1328 static void client_update_transient_tree(ObClient *self,
1329                                          ObGroup *oldgroup, ObGroup *newgroup,
1330                                          gboolean oldgtran, gboolean newgtran,
1331                                          ObClient* oldparent,
1332                                          ObClient *newparent)
1333 {
1334     GSList *it, *next;
1335     ObClient *c;
1336
1337     g_assert(!oldgtran || oldgroup);
1338     g_assert(!newgtran || newgroup);
1339     g_assert((!oldgtran && !oldparent) ||
1340              (oldgtran && !oldparent) ||
1341              (!oldgtran && oldparent));
1342     g_assert((!newgtran && !newparent) ||
1343              (newgtran && !newparent) ||
1344              (!newgtran && newparent));
1345
1346     /* * *
1347       Group transient windows are not allowed to have other group
1348       transient windows as their children.
1349       * * */
1350
1351
1352     /* No change has occured */
1353     if (oldgroup == newgroup &&
1354         oldgtran == newgtran &&
1355         oldparent == newparent) return;
1356
1357     /** Remove the client from the transient tree **/
1358
1359     for (it = self->transients; it; it = next) {
1360         next = g_slist_next(it);
1361         c = it->data;
1362         self->transients = g_slist_delete_link(self->transients, it);
1363         c->parents = g_slist_remove(c->parents, self);
1364     }
1365     for (it = self->parents; it; it = next) {
1366         next = g_slist_next(it);
1367         c = it->data;
1368         self->parents = g_slist_delete_link(self->parents, it);
1369         c->transients = g_slist_remove(c->transients, self);
1370     }
1371
1372     /** Re-add the client to the transient tree **/
1373
1374     /* If we're transient for a group then we need to add ourselves to all our
1375        parents */
1376     if (newgtran) {
1377         for (it = newgroup->members; it; it = g_slist_next(it)) {
1378             c = it->data;
1379             if (c != self &&
1380                 !client_search_top_direct_parent(c)->transient_for_group &&
1381                 client_normal(c))
1382             {
1383                 c->transients = g_slist_prepend(c->transients, self);
1384                 self->parents = g_slist_prepend(self->parents, c);
1385             }
1386         }
1387     }
1388
1389     /* If we are now transient for a single window we need to add ourselves to
1390        its children
1391
1392        WARNING: Cyclical transient ness is possible if two windows are
1393        transient for eachother.
1394     */
1395     else if (newparent &&
1396              /* don't make ourself its child if it is already our child */
1397              !client_is_direct_child(self, newparent) &&
1398              client_normal(newparent))
1399     {
1400         newparent->transients = g_slist_prepend(newparent->transients, self);
1401         self->parents = g_slist_prepend(self->parents, newparent);
1402     }
1403
1404     /* Add any group transient windows to our children. But if we're transient
1405        for the group, then other group transients are not our children.
1406
1407        WARNING: Cyclical transient-ness is possible. For e.g. if:
1408        A is transient for the group
1409        B is transient for A
1410        C is transient for B
1411        A can't be transient for C or we have a cycle
1412     */
1413     if (!newgtran && newgroup &&
1414         (!newparent ||
1415          !client_search_top_direct_parent(newparent)->transient_for_group) &&
1416         client_normal(self))
1417     {
1418         for (it = newgroup->members; it; it = g_slist_next(it)) {
1419             c = it->data;
1420             if (c != self && c->transient_for_group &&
1421                 /* Don't make it our child if it is already our parent */
1422                 !client_is_direct_child(c, self))
1423             {
1424                 self->transients = g_slist_prepend(self->transients, c);
1425                 c->parents = g_slist_prepend(c->parents, self);
1426             }
1427         }
1428     }
1429
1430     /** If we change our group transient-ness, our children change their
1431         effect group transient-ness, which affects how they relate to other
1432         group windows **/
1433
1434     for (it = self->transients; it; it = g_slist_next(it)) {
1435         c = it->data;
1436         if (!c->transient_for_group)
1437             client_update_transient_tree(c, c->group, c->group,
1438                                          c->transient_for_group,
1439                                          c->transient_for_group,
1440                                          client_direct_parent(c),
1441                                          client_direct_parent(c));
1442     }
1443 }
1444
1445 static void client_get_mwm_hints(ObClient *self)
1446 {
1447     guint num;
1448     guint32 *hints;
1449
1450     self->mwmhints.flags = 0; /* default to none */
1451
1452     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1453                     &hints, &num)) {
1454         if (num >= OB_MWM_ELEMENTS) {
1455             self->mwmhints.flags = hints[0];
1456             self->mwmhints.functions = hints[1];
1457             self->mwmhints.decorations = hints[2];
1458         }
1459         g_free(hints);
1460     }
1461 }
1462
1463 void client_get_type_and_transientness(ObClient *self)
1464 {
1465     guint num, i;
1466     guint32 *val;
1467     Window t;
1468
1469     self->type = -1;
1470     self->transient = FALSE;
1471
1472     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1473         /* use the first value that we know about in the array */
1474         for (i = 0; i < num; ++i) {
1475             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1476                 self->type = OB_CLIENT_TYPE_DESKTOP;
1477             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1478                 self->type = OB_CLIENT_TYPE_DOCK;
1479             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1480                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1481             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1482                 self->type = OB_CLIENT_TYPE_MENU;
1483             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1484                 self->type = OB_CLIENT_TYPE_UTILITY;
1485             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1486                 self->type = OB_CLIENT_TYPE_SPLASH;
1487             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1488                 self->type = OB_CLIENT_TYPE_DIALOG;
1489             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1490                 self->type = OB_CLIENT_TYPE_NORMAL;
1491             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1492                 /* prevent this window from getting any decor or
1493                    functionality */
1494                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1495                                          OB_MWM_FLAG_DECORATIONS);
1496                 self->mwmhints.decorations = 0;
1497                 self->mwmhints.functions = 0;
1498             }
1499             if (self->type != (ObClientType) -1)
1500                 break; /* grab the first legit type */
1501         }
1502         g_free(val);
1503     }
1504
1505     if (XGetTransientForHint(ob_display, self->window, &t))
1506         self->transient = TRUE;
1507
1508     if (self->type == (ObClientType) -1) {
1509         /*the window type hint was not set, which means we either classify
1510           ourself as a normal window or a dialog, depending on if we are a
1511           transient. */
1512         if (self->transient)
1513             self->type = OB_CLIENT_TYPE_DIALOG;
1514         else
1515             self->type = OB_CLIENT_TYPE_NORMAL;
1516     }
1517
1518     /* then, based on our type, we can update our transientness.. */
1519     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1520         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1521         self->type == OB_CLIENT_TYPE_MENU ||
1522         self->type == OB_CLIENT_TYPE_UTILITY)
1523     {
1524         self->transient = TRUE;
1525     }
1526 }
1527
1528 void client_update_protocols(ObClient *self)
1529 {
1530     guint32 *proto;
1531     guint num_return, i;
1532
1533     self->focus_notify = FALSE;
1534     self->delete_window = FALSE;
1535
1536     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1537         for (i = 0; i < num_return; ++i) {
1538             if (proto[i] == prop_atoms.wm_delete_window)
1539                 /* this means we can request the window to close */
1540                 self->delete_window = TRUE;
1541             else if (proto[i] == prop_atoms.wm_take_focus)
1542                 /* if this protocol is requested, then the window will be
1543                    notified whenever we want it to receive focus */
1544                 self->focus_notify = TRUE;
1545             else if (proto[i] == prop_atoms.net_wm_ping)
1546                 /* if this protocol is requested, then the window will allow
1547                    pings to determine if it is still alive */
1548                 self->ping = TRUE;
1549 #ifdef SYNC
1550             else if (proto[i] == prop_atoms.net_wm_sync_request)
1551                 /* if this protocol is requested, then resizing the
1552                    window will be synchronized between the frame and the
1553                    client */
1554                 self->sync_request = TRUE;
1555 #endif
1556         }
1557         g_free(proto);
1558     }
1559 }
1560
1561 #ifdef SYNC
1562 void client_update_sync_request_counter(ObClient *self)
1563 {
1564     guint32 i;
1565
1566     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1567         self->sync_counter = i;
1568     } else
1569         self->sync_counter = None;
1570 }
1571 #endif
1572
1573 static void client_get_colormap(ObClient *self)
1574 {
1575     XWindowAttributes wa;
1576
1577     if (XGetWindowAttributes(ob_display, self->window, &wa))
1578         client_update_colormap(self, wa.colormap);
1579 }
1580
1581 void client_update_colormap(ObClient *self, Colormap colormap)
1582 {
1583     if (colormap == self->colormap) return;
1584
1585     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1586
1587     if (client_focused(self)) {
1588         screen_install_colormap(self, FALSE); /* uninstall old one */
1589         self->colormap = colormap;
1590         screen_install_colormap(self, FALSE); /* install new one */
1591     } else
1592         self->colormap = colormap;
1593 }
1594
1595 void client_update_normal_hints(ObClient *self)
1596 {
1597     XSizeHints size;
1598     glong ret;
1599
1600     /* defaults */
1601     self->min_ratio = 0.0f;
1602     self->max_ratio = 0.0f;
1603     SIZE_SET(self->size_inc, 1, 1);
1604     SIZE_SET(self->base_size, 0, 0);
1605     SIZE_SET(self->min_size, 0, 0);
1606     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1607
1608     /* get the hints from the window */
1609     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1610         /* normal windows can't request placement! har har
1611         if (!client_normal(self))
1612         */
1613         self->positioned = (size.flags & (PPosition|USPosition));
1614         self->sized = (size.flags & (PSize|USSize));
1615
1616         if (size.flags & PWinGravity)
1617             self->gravity = size.win_gravity;
1618
1619         if (size.flags & PAspect) {
1620             if (size.min_aspect.y)
1621                 self->min_ratio =
1622                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1623             if (size.max_aspect.y)
1624                 self->max_ratio =
1625                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1626         }
1627
1628         if (size.flags & PMinSize)
1629             SIZE_SET(self->min_size, size.min_width, size.min_height);
1630
1631         if (size.flags & PMaxSize)
1632             SIZE_SET(self->max_size, size.max_width, size.max_height);
1633
1634         if (size.flags & PBaseSize)
1635             SIZE_SET(self->base_size, size.base_width, size.base_height);
1636
1637         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1638             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1639
1640         ob_debug("Normal hints: min size (%d %d) max size (%d %d)\n   "
1641                  "size inc (%d %d) base size (%d %d)\n",
1642                  self->min_size.width, self->min_size.height,
1643                  self->max_size.width, self->max_size.height,
1644                  self->size_inc.width, self->size_inc.height,
1645                  self->base_size.width, self->base_size.height);
1646     }
1647     else
1648         ob_debug("Normal hints: not set\n");
1649 }
1650
1651 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1652 {
1653     /* start with everything (cept fullscreen) */
1654     self->decorations =
1655         (OB_FRAME_DECOR_TITLEBAR |
1656          OB_FRAME_DECOR_HANDLE |
1657          OB_FRAME_DECOR_GRIPS |
1658          OB_FRAME_DECOR_BORDER |
1659          OB_FRAME_DECOR_ICON |
1660          OB_FRAME_DECOR_ALLDESKTOPS |
1661          OB_FRAME_DECOR_ICONIFY |
1662          OB_FRAME_DECOR_MAXIMIZE |
1663          OB_FRAME_DECOR_SHADE |
1664          OB_FRAME_DECOR_CLOSE);
1665     self->functions =
1666         (OB_CLIENT_FUNC_RESIZE |
1667          OB_CLIENT_FUNC_MOVE |
1668          OB_CLIENT_FUNC_ICONIFY |
1669          OB_CLIENT_FUNC_MAXIMIZE |
1670          OB_CLIENT_FUNC_SHADE |
1671          OB_CLIENT_FUNC_CLOSE |
1672          OB_CLIENT_FUNC_BELOW |
1673          OB_CLIENT_FUNC_ABOVE |
1674          OB_CLIENT_FUNC_UNDECORATE);
1675
1676     if (!(self->min_size.width < self->max_size.width ||
1677           self->min_size.height < self->max_size.height))
1678         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1679
1680     switch (self->type) {
1681     case OB_CLIENT_TYPE_NORMAL:
1682         /* normal windows retain all of the possible decorations and
1683            functionality, and can be fullscreen */
1684         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1685         break;
1686
1687     case OB_CLIENT_TYPE_DIALOG:
1688         /* sometimes apps make dialog windows fullscreen for some reason (for
1689            e.g. kpdf does this..) */
1690         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1691         break;
1692
1693     case OB_CLIENT_TYPE_UTILITY:
1694         /* these windows don't have anything added or removed by default */
1695         break;
1696
1697     case OB_CLIENT_TYPE_MENU:
1698     case OB_CLIENT_TYPE_TOOLBAR:
1699         /* these windows can't iconify or maximize */
1700         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1701                                OB_FRAME_DECOR_MAXIMIZE);
1702         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1703                              OB_CLIENT_FUNC_MAXIMIZE);
1704         break;
1705
1706     case OB_CLIENT_TYPE_SPLASH:
1707         /* these don't get get any decorations, and the only thing you can
1708            do with them is move them */
1709         self->decorations = 0;
1710         self->functions = OB_CLIENT_FUNC_MOVE;
1711         break;
1712
1713     case OB_CLIENT_TYPE_DESKTOP:
1714         /* these windows are not manipulated by the window manager */
1715         self->decorations = 0;
1716         self->functions = 0;
1717         break;
1718
1719     case OB_CLIENT_TYPE_DOCK:
1720         /* these windows are not manipulated by the window manager, but they
1721            can set below layer which has a special meaning */
1722         self->decorations = 0;
1723         self->functions = OB_CLIENT_FUNC_BELOW;
1724         break;
1725     }
1726
1727     /* Mwm Hints are applied subtractively to what has already been chosen for
1728        decor and functionality */
1729     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1730         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1731             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1732                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1733             {
1734                 /* if the mwm hints request no handle or title, then all
1735                    decorations are disabled, but keep the border if that's
1736                    specified */
1737                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1738                     self->decorations = OB_FRAME_DECOR_BORDER;
1739                 else
1740                     self->decorations = 0;
1741             }
1742         }
1743     }
1744
1745     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1746         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1747             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1748                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1749             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1750                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1751             /* dont let mwm hints kill any buttons
1752                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1753                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1754                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1755                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1756             */
1757             /* dont let mwm hints kill the close button
1758                if (! (self->mwmhints.functions & MwmFunc_Close))
1759                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1760         }
1761     }
1762
1763     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1764         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1765     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1766         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1767     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1768         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1769
1770     /* can't maximize without moving/resizing */
1771     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1772           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1773           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1774         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1775         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1776     }
1777
1778     if (self->max_horz && self->max_vert) {
1779         /* you can't resize fully maximized windows */
1780         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1781         /* kill the handle on fully maxed windows */
1782         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1783     }
1784
1785     /* If there are no decorations to remove, don't allow the user to try
1786        toggle the state */
1787     if (self->decorations == 0)
1788         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1789
1790     /* finally, the user can have requested no decorations, which overrides
1791        everything (but doesnt give it a border if it doesnt have one) */
1792     if (self->undecorated)
1793         self->decorations = 0;
1794
1795     /* if we don't have a titlebar, then we cannot shade! */
1796     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1797         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1798
1799     /* now we need to check against rules for the client's current state */
1800     if (self->fullscreen) {
1801         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1802                             OB_CLIENT_FUNC_FULLSCREEN |
1803                             OB_CLIENT_FUNC_ICONIFY);
1804         self->decorations = 0;
1805     }
1806
1807     client_change_allowed_actions(self);
1808
1809     if (reconfig)
1810         /* force reconfigure to make sure decorations are updated */
1811         client_reconfigure(self, TRUE);
1812 }
1813
1814 static void client_change_allowed_actions(ObClient *self)
1815 {
1816     gulong actions[12];
1817     gint num = 0;
1818
1819     /* desktop windows are kept on all desktops */
1820     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1821         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1822
1823     if (self->functions & OB_CLIENT_FUNC_SHADE)
1824         actions[num++] = prop_atoms.net_wm_action_shade;
1825     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1826         actions[num++] = prop_atoms.net_wm_action_close;
1827     if (self->functions & OB_CLIENT_FUNC_MOVE)
1828         actions[num++] = prop_atoms.net_wm_action_move;
1829     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1830         actions[num++] = prop_atoms.net_wm_action_minimize;
1831     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1832         actions[num++] = prop_atoms.net_wm_action_resize;
1833     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1834         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1835     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1836         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1837         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1838     }
1839     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1840         actions[num++] = prop_atoms.net_wm_action_above;
1841     if (self->functions & OB_CLIENT_FUNC_BELOW)
1842         actions[num++] = prop_atoms.net_wm_action_below;
1843     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1844         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1845
1846     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1847
1848    /* make sure the window isn't breaking any rules now
1849
1850    don't check ICONIFY here.  just cuz a window can't iconify doesnt mean
1851    it can't be iconified with its parent
1852    */
1853
1854     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1855         if (self->frame) client_shade(self, FALSE);
1856         else self->shaded = FALSE;
1857     }
1858     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1859         if (self->frame) client_fullscreen(self, FALSE);
1860         else self->fullscreen = FALSE;
1861     }
1862     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1863                                                          self->max_vert)) {
1864         if (self->frame) client_maximize(self, FALSE, 0);
1865         else self->max_vert = self->max_horz = FALSE;
1866     }
1867 }
1868
1869 void client_update_wmhints(ObClient *self)
1870 {
1871     XWMHints *hints;
1872
1873     /* assume a window takes input if it doesnt specify */
1874     self->can_focus = TRUE;
1875
1876     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1877         gboolean ur;
1878
1879         if (hints->flags & InputHint)
1880             self->can_focus = hints->input;
1881
1882         /* only do this when first managing the window *AND* when we aren't
1883            starting up! */
1884         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1885             if (hints->flags & StateHint)
1886                 self->iconic = hints->initial_state == IconicState;
1887
1888         ur = self->urgent;
1889         self->urgent = (hints->flags & XUrgencyHint);
1890         if (self->urgent && !ur)
1891             client_hilite(self, TRUE);
1892         else if (!self->urgent && ur && self->demands_attention)
1893             client_hilite(self, FALSE);
1894
1895         if (!(hints->flags & WindowGroupHint))
1896             hints->window_group = None;
1897
1898         /* did the group state change? */
1899         if (hints->window_group !=
1900             (self->group ? self->group->leader : None))
1901         {
1902             ObGroup *oldgroup = self->group;
1903
1904             /* remove from the old group if there was one */
1905             if (self->group != NULL) {
1906                 group_remove(self->group, self);
1907                 self->group = NULL;
1908             }
1909
1910             /* add ourself to the group if we have one */
1911             if (hints->window_group != None) {
1912                 self->group = group_add(hints->window_group, self);
1913             }
1914
1915             /* Put ourselves into the new group's transient tree, and remove
1916                ourselves from the old group's */
1917             client_update_transient_tree(self, oldgroup, self->group,
1918                                          self->transient_for_group,
1919                                          self->transient_for_group,
1920                                          client_direct_parent(self),
1921                                          client_direct_parent(self));
1922
1923             /* Lastly, being in a group, or not, can change if the window is
1924                transient for anything.
1925
1926                The logic for this is:
1927                self->transient = TRUE always if the window wants to be
1928                transient for something, even if transient_for was NULL because
1929                it wasn't in a group before.
1930
1931                If parents was NULL and oldgroup was NULL we can assume
1932                that when we add the new group, it will become transient for
1933                something.
1934
1935                If transient_for_group is TRUE, then it must have already
1936                had a group. If it is getting a new group, the above call to
1937                client_update_transient_tree has already taken care of
1938                everything ! If it is losing all group status then it will
1939                no longer be transient for anything and that needs to be
1940                updated.
1941             */
1942             if (self->transient &&
1943                 ((self->parents == NULL && oldgroup == NULL) ||
1944                  (self->transient_for_group && !self->group)))
1945                 client_update_transient_for(self);
1946         }
1947
1948         /* the WM_HINTS can contain an icon */
1949         if (hints->flags & IconPixmapHint)
1950             client_update_icons(self);
1951
1952         XFree(hints);
1953     }
1954 }
1955
1956 void client_update_title(ObClient *self)
1957 {
1958     gchar *data = NULL;
1959     gchar *visible = NULL;
1960
1961     g_free(self->title);
1962
1963     /* try netwm */
1964     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1965         /* try old x stuff */
1966         if (!(PROP_GETS(self->window, wm_name, locale, &data)
1967               || PROP_GETS(self->window, wm_name, utf8, &data))) {
1968             if (self->transient) {
1969     /*
1970     GNOME alert windows are not given titles:
1971     http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1972     */
1973                 data = g_strdup("");
1974             } else
1975                 data = g_strdup("Unnamed Window");
1976         }
1977     }
1978
1979     if (self->client_machine) {
1980         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1981         g_free(data);
1982     } else
1983         visible = data;
1984
1985     if (self->not_responding) {
1986         data = visible;
1987         if (self->close_tried_term)
1988             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
1989         else
1990             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
1991         g_free(data);
1992     }
1993
1994     PROP_SETS(self->window, net_wm_visible_name, visible);
1995     self->title = visible;
1996
1997     if (self->frame)
1998         frame_adjust_title(self->frame);
1999
2000     /* update the icon title */
2001     data = NULL;
2002     g_free(self->icon_title);
2003
2004     /* try netwm */
2005     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
2006         /* try old x stuff */
2007         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
2008               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
2009             data = g_strdup(self->title);
2010
2011     if (self->client_machine) {
2012         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
2013         g_free(data);
2014     } else
2015         visible = data;
2016
2017     if (self->not_responding) {
2018         data = visible;
2019         if (self->close_tried_term)
2020             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
2021         else
2022             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
2023         g_free(data);
2024     }
2025
2026     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
2027     self->icon_title = visible;
2028 }
2029
2030 void client_update_strut(ObClient *self)
2031 {
2032     guint num;
2033     guint32 *data;
2034     gboolean got = FALSE;
2035     StrutPartial strut;
2036
2037     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
2038                     &data, &num)) {
2039         if (num == 12) {
2040             got = TRUE;
2041             STRUT_PARTIAL_SET(strut,
2042                               data[0], data[2], data[1], data[3],
2043                               data[4], data[5], data[8], data[9],
2044                               data[6], data[7], data[10], data[11]);
2045         }
2046         g_free(data);
2047     }
2048
2049     if (!got &&
2050         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
2051         if (num == 4) {
2052             Rect *a;
2053
2054             got = TRUE;
2055
2056             /* use the screen's width/height */
2057             a = screen_physical_area_all_monitors();
2058
2059             STRUT_PARTIAL_SET(strut,
2060                               data[0], data[2], data[1], data[3],
2061                               a->y, a->y + a->height - 1,
2062                               a->x, a->x + a->width - 1,
2063                               a->y, a->y + a->height - 1,
2064                               a->x, a->x + a->width - 1);
2065             g_free(a);
2066         }
2067         g_free(data);
2068     }
2069
2070     if (!got)
2071         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2072                           0, 0, 0, 0, 0, 0, 0, 0);
2073
2074     if (!STRUT_EQUAL(strut, self->strut)) {
2075         self->strut = strut;
2076
2077         /* updating here is pointless while we're being mapped cuz we're not in
2078            the client list yet */
2079         if (self->frame)
2080             screen_update_areas();
2081     }
2082 }
2083
2084 /* Avoid storing icons above this size if possible */
2085 #define AVOID_ABOVE 64
2086
2087 void client_update_icons(ObClient *self)
2088 {
2089     guint num;
2090     guint32 *data;
2091     guint w, h, i, j;
2092     guint num_seen;  /* number of icons present */
2093     guint num_small_seen;  /* number of icons small enough present */
2094     guint smallest, smallest_area;
2095
2096     for (i = 0; i < self->nicons; ++i)
2097         g_free(self->icons[i].data);
2098     if (self->nicons > 0)
2099         g_free(self->icons);
2100     self->nicons = 0;
2101
2102     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2103         /* figure out how many valid icons are in here */
2104         i = 0;
2105         num_seen = num_small_seen = 0;
2106         smallest = smallest_area = 0;
2107         if (num > 2)
2108             while (i < num) {
2109                 w = data[i++];
2110                 h = data[i++];
2111                 i += w * h;
2112                 /* watch for it being too small for the specified size, or for
2113                    zero sized icons. */
2114                 if (i > num || w == 0 || h == 0) break;
2115
2116                 if (!smallest_area || w*h < smallest_area) {
2117                     smallest = num_seen;
2118                     smallest_area = w*h;
2119                 }
2120                 ++num_seen;
2121                 if (w <= AVOID_ABOVE && h <= AVOID_ABOVE)
2122                     ++num_small_seen;
2123             }
2124         if (num_small_seen > 0)
2125             self->nicons = num_small_seen;
2126         else if (num_seen)
2127             self->nicons = 1;
2128
2129         self->icons = g_new(ObClientIcon, self->nicons);
2130
2131         /* store the icons */
2132         i = 0;
2133         for (j = 0; j < self->nicons;) {
2134             guint x, y, t;
2135
2136             w = self->icons[j].width = data[i++];
2137             h = self->icons[j].height = data[i++];
2138
2139             /* if there are some icons smaller than the threshold, we're
2140                skipping all the ones above */
2141             if (num_small_seen > 0) {
2142                 if (w > AVOID_ABOVE || h > AVOID_ABOVE) {
2143                     i += w*h;
2144                     continue;
2145                 }
2146             }
2147             /* if there were no icons smaller than the threshold, then we are
2148                only taking the smallest available one we saw */
2149             else if (j != smallest) {
2150                 i += w*h;
2151                 continue;
2152             }
2153
2154             self->icons[j].data = g_new(RrPixel32, w * h);
2155             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2156                 if (x >= w) {
2157                     x = 0;
2158                     ++y;
2159                 }
2160                 self->icons[j].data[t] =
2161                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2162                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2163                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2164                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2165             }
2166             g_assert(i <= num);
2167
2168             ++j;
2169         }
2170
2171         g_free(data);
2172     } else {
2173         XWMHints *hints;
2174
2175         if ((hints = XGetWMHints(ob_display, self->window))) {
2176             if (hints->flags & IconPixmapHint) {
2177                 self->nicons = 1;
2178                 self->icons = g_new(ObClientIcon, self->nicons);
2179                 xerror_set_ignore(TRUE);
2180                 if (!RrPixmapToRGBA(ob_rr_inst,
2181                                     hints->icon_pixmap,
2182                                     (hints->flags & IconMaskHint ?
2183                                      hints->icon_mask : None),
2184                                     &self->icons[0].width,
2185                                     &self->icons[0].height,
2186                                     &self->icons[0].data))
2187                 {
2188                     g_free(self->icons);
2189                     self->nicons = 0;
2190                 }
2191                 xerror_set_ignore(FALSE);
2192             }
2193             XFree(hints);
2194         }
2195     }
2196
2197     /* set the default icon onto the window
2198        in theory, this could be a race, but if a window doesn't set an icon
2199        or removes it entirely, it's not very likely it is going to set one
2200        right away afterwards
2201
2202        if it has parents, then one of them will have an icon already
2203     */
2204     if (self->nicons == 0 && !self->parents) {
2205         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2206         gulong *data;
2207
2208         data = g_new(gulong, 48*48+2);
2209         data[0] = data[1] =  48;
2210         for (i = 0; i < 48*48; ++i)
2211             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2212                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2213                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2214                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2215         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2216         g_free(data);
2217     } else if (self->frame)
2218         /* don't draw the icon empty if we're just setting one now anyways,
2219            we'll get the property change any second */
2220         frame_adjust_icon(self->frame);
2221 }
2222
2223 void client_update_icon_geometry(ObClient *self)
2224 {
2225     guint num;
2226     guint32 *data;
2227
2228     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2229
2230     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num))
2231     {
2232         if (num == 4)
2233             /* don't let them set it with an area < 0 */
2234             RECT_SET(self->icon_geometry, data[0], data[1],
2235                      MAX(data[2],0), MAX(data[3],0));
2236         g_free(data);
2237     }
2238 }
2239
2240 static void client_get_session_ids(ObClient *self)
2241 {
2242     guint32 leader;
2243     gboolean got;
2244     gchar *s;
2245     gchar **ss;
2246
2247     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2248         leader = None;
2249
2250     /* get the SM_CLIENT_ID */
2251     got = FALSE;
2252     if (leader)
2253         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2254     if (!got)
2255         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2256
2257     /* get the WM_CLASS (name and class). make them "" if they are not
2258        provided */
2259     got = FALSE;
2260     if (leader)
2261         got = PROP_GETSS(leader, wm_class, locale, &ss);
2262     if (!got)
2263         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2264
2265     if (got) {
2266         if (ss[0]) {
2267             self->name = g_strdup(ss[0]);
2268             if (ss[1])
2269                 self->class = g_strdup(ss[1]);
2270         }
2271         g_strfreev(ss);
2272     }
2273
2274     if (self->name == NULL) self->name = g_strdup("");
2275     if (self->class == NULL) self->class = g_strdup("");
2276
2277     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2278     got = FALSE;
2279     if (leader)
2280         got = PROP_GETS(leader, wm_window_role, locale, &s);
2281     if (!got)
2282         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2283
2284     if (got)
2285         self->role = s;
2286     else
2287         self->role = g_strdup("");
2288
2289     /* get the WM_COMMAND */
2290     got = FALSE;
2291
2292     if (leader)
2293         got = PROP_GETSS(leader, wm_command, locale, &ss);
2294     if (!got)
2295         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2296
2297     if (got) {
2298         /* merge/mash them all together */
2299         gchar *merge = NULL;
2300         gint i;
2301
2302         for (i = 0; ss[i]; ++i) {
2303             gchar *tmp = merge;
2304             if (merge)
2305                 merge = g_strconcat(merge, ss[i], NULL);
2306             else
2307                 merge = g_strconcat(ss[i], NULL);
2308             g_free(tmp);
2309         }
2310         g_strfreev(ss);
2311
2312         self->wm_command = merge;
2313     }
2314
2315     /* get the WM_CLIENT_MACHINE */
2316     got = FALSE;
2317     if (leader)
2318         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2319     if (!got)
2320         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2321
2322     if (got) {
2323         gchar localhost[128];
2324         guint32 pid;
2325
2326         gethostname(localhost, 127);
2327         localhost[127] = '\0';
2328         if (strcmp(localhost, s) != 0)
2329             self->client_machine = s;
2330         else
2331             g_free(s);
2332
2333         /* see if it has the PID set too (the PID requires that the
2334            WM_CLIENT_MACHINE be set) */
2335         if (PROP_GET32(self->window, net_wm_pid, cardinal, &pid))
2336             self->pid = pid;
2337     }
2338 }
2339
2340 static void client_change_wm_state(ObClient *self)
2341 {
2342     gulong state[2];
2343     glong old;
2344
2345     old = self->wmstate;
2346
2347     if (self->shaded || self->iconic ||
2348         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2349     {
2350         self->wmstate = IconicState;
2351     } else
2352         self->wmstate = NormalState;
2353
2354     if (old != self->wmstate) {
2355         PROP_MSG(self->window, kde_wm_change_state,
2356                  self->wmstate, 1, 0, 0);
2357
2358         state[0] = self->wmstate;
2359         state[1] = None;
2360         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2361     }
2362 }
2363
2364 static void client_change_state(ObClient *self)
2365 {
2366     gulong netstate[12];
2367     guint num;
2368
2369     num = 0;
2370     if (self->modal)
2371         netstate[num++] = prop_atoms.net_wm_state_modal;
2372     if (self->shaded)
2373         netstate[num++] = prop_atoms.net_wm_state_shaded;
2374     if (self->iconic)
2375         netstate[num++] = prop_atoms.net_wm_state_hidden;
2376     if (self->skip_taskbar)
2377         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2378     if (self->skip_pager)
2379         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2380     if (self->fullscreen)
2381         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2382     if (self->max_vert)
2383         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2384     if (self->max_horz)
2385         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2386     if (self->above)
2387         netstate[num++] = prop_atoms.net_wm_state_above;
2388     if (self->below)
2389         netstate[num++] = prop_atoms.net_wm_state_below;
2390     if (self->demands_attention)
2391         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2392     if (self->undecorated)
2393         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2394     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2395
2396     if (self->frame)
2397         frame_adjust_state(self->frame);
2398 }
2399
2400 ObClient *client_search_focus_tree(ObClient *self)
2401 {
2402     GSList *it;
2403     ObClient *ret;
2404
2405     for (it = self->transients; it; it = g_slist_next(it)) {
2406         if (client_focused(it->data)) return it->data;
2407         if ((ret = client_search_focus_tree(it->data))) return ret;
2408     }
2409     return NULL;
2410 }
2411
2412 ObClient *client_search_focus_tree_full(ObClient *self)
2413 {
2414     if (self->parents) {
2415         GSList *it;
2416
2417         for (it = self->parents; it; it = g_slist_next(it)) {
2418             ObClient *c = it->data;
2419             if ((c = client_search_focus_tree_full(it->data))) return c;
2420         }
2421
2422         return NULL;
2423     }
2424     else {
2425         /* this function checks the whole tree, the client_search_focus_tree
2426            does not, so we need to check this window */
2427         if (client_focused(self))
2428             return self;
2429         return client_search_focus_tree(self);
2430     }
2431 }
2432
2433 ObClient *client_search_focus_group_full(ObClient *self)
2434 {
2435     GSList *it;
2436
2437     if (self->group) {
2438         for (it = self->group->members; it; it = g_slist_next(it)) {
2439             ObClient *c = it->data;
2440
2441             if (client_focused(c)) return c;
2442             if ((c = client_search_focus_tree(it->data))) return c;
2443         }
2444     } else
2445         if (client_focused(self)) return self;
2446     return NULL;
2447 }
2448
2449 gboolean client_has_parent(ObClient *self)
2450 {
2451     return self->parents != NULL;
2452 }
2453
2454 static ObStackingLayer calc_layer(ObClient *self)
2455 {
2456     ObStackingLayer l;
2457     Rect *monitor;
2458
2459     monitor = screen_physical_area_monitor(client_monitor(self));
2460
2461     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2462         l = OB_STACKING_LAYER_DESKTOP;
2463     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2464         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2465         else l = OB_STACKING_LAYER_ABOVE;
2466     }
2467     else if ((self->fullscreen ||
2468               /* No decorations and fills the monitor = oldskool fullscreen.
2469                  But not for maximized windows.
2470               */
2471               (self->decorations == 0 &&
2472                !(self->max_horz && self->max_vert) &&
2473                RECT_EQUAL(self->area, *monitor))) &&
2474              /* you are fullscreen while you or your children are focused.. */
2475              (client_focused(self) || client_search_focus_tree(self) ||
2476               /* you can be fullscreen if you're on another desktop */
2477               (self->desktop != screen_desktop &&
2478                self->desktop != DESKTOP_ALL) ||
2479               /* and you can also be fullscreen if the focused client is on
2480                  another monitor, or nothing else is focused */
2481               (!focus_client ||
2482                client_monitor(focus_client) != client_monitor(self))))
2483         l = OB_STACKING_LAYER_FULLSCREEN;
2484     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2485     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2486     else l = OB_STACKING_LAYER_NORMAL;
2487
2488     g_free(monitor);
2489
2490     return l;
2491 }
2492
2493 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2494                                         ObStackingLayer min)
2495 {
2496     ObStackingLayer old, own;
2497     GSList *it;
2498
2499     old = self->layer;
2500     own = calc_layer(self);
2501     self->layer = MAX(own, min);
2502
2503     if (self->layer != old) {
2504         stacking_remove(CLIENT_AS_WINDOW(self));
2505         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2506     }
2507
2508     /* we've been restacked */
2509     self->visited = TRUE;
2510
2511     for (it = self->transients; it; it = g_slist_next(it))
2512         client_calc_layer_recursive(it->data, orig,
2513                                     self->layer);
2514 }
2515
2516 static void client_calc_layer_internal(ObClient *self)
2517 {
2518     GSList *sit;
2519
2520     /* transients take on the layer of their parents */
2521     sit = client_search_all_top_parents(self);
2522
2523     for (; sit; sit = g_slist_next(sit))
2524         client_calc_layer_recursive(sit->data, self, 0);
2525 }
2526
2527 void client_calc_layer(ObClient *self)
2528 {
2529     GList *it;
2530
2531     /* skip over stuff above fullscreen layer */
2532     for (it = stacking_list; it; it = g_list_next(it))
2533         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2534
2535     /* find the windows in the fullscreen layer, and mark them not-visited */
2536     for (; it; it = g_list_next(it)) {
2537         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2538         else if (WINDOW_IS_CLIENT(it->data))
2539             WINDOW_AS_CLIENT(it->data)->visited = FALSE;
2540     }
2541
2542     client_calc_layer_internal(self);
2543
2544     /* skip over stuff above fullscreen layer */
2545     for (it = stacking_list; it; it = g_list_next(it))
2546         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2547
2548     /* now recalc any windows in the fullscreen layer which have not
2549        had their layer recalced already */
2550     for (; it; it = g_list_next(it)) {
2551         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2552         else if (WINDOW_IS_CLIENT(it->data) &&
2553                  !WINDOW_AS_CLIENT(it->data)->visited)
2554             client_calc_layer_internal(it->data);
2555     }
2556 }
2557
2558 gboolean client_should_show(ObClient *self)
2559 {
2560     if (self->iconic)
2561         return FALSE;
2562     if (client_normal(self) && screen_showing_desktop)
2563         return FALSE;
2564     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2565         return TRUE;
2566
2567     return FALSE;
2568 }
2569
2570 gboolean client_show(ObClient *self)
2571 {
2572     gboolean show = FALSE;
2573
2574     if (client_should_show(self)) {
2575         frame_show(self->frame);
2576         show = TRUE;
2577
2578         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2579            it needs to be in IconicState. This includes when it is on another
2580            desktop!
2581         */
2582         client_change_wm_state(self);
2583     }
2584     return show;
2585 }
2586
2587 gboolean client_hide(ObClient *self)
2588 {
2589     gboolean hide = FALSE;
2590
2591     if (!client_should_show(self)) {
2592         if (self == focus_client) {
2593             /* if there is a grab going on, then we need to cancel it. if we
2594                move focus during the grab, applications will get
2595                NotifyWhileGrabbed events and ignore them !
2596
2597                actions should not rely on being able to move focus during an
2598                interactive grab.
2599             */
2600             event_cancel_all_key_grabs();
2601         }
2602
2603         /* We don't need to ignore enter events here.
2604            The window can hide/iconify in 3 different ways:
2605            1 - through an x message. in this case we ignore all enter events
2606                caused by responding to the x message (unless underMouse)
2607            2 - by a keyboard action. in this case we ignore all enter events
2608                caused by the action
2609            3 - by a mouse action. in this case they are doing stuff with the
2610                mouse and focus _should_ move.
2611
2612            Also in action_end, we simulate an enter event that can't be ignored
2613            so trying to ignore them is futile in case 3 anyways
2614         */
2615
2616         frame_hide(self->frame);
2617         hide = TRUE;
2618
2619         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2620            it needs to be in IconicState. This includes when it is on another
2621            desktop!
2622         */
2623         client_change_wm_state(self);
2624     }
2625     return hide;
2626 }
2627
2628 void client_showhide(ObClient *self)
2629 {
2630     if (!client_show(self))
2631         client_hide(self);
2632 }
2633
2634 gboolean client_normal(ObClient *self) {
2635     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2636               self->type == OB_CLIENT_TYPE_DOCK ||
2637               self->type == OB_CLIENT_TYPE_SPLASH);
2638 }
2639
2640 gboolean client_helper(ObClient *self)
2641 {
2642     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2643             self->type == OB_CLIENT_TYPE_MENU ||
2644             self->type == OB_CLIENT_TYPE_TOOLBAR);
2645 }
2646
2647 gboolean client_mouse_focusable(ObClient *self)
2648 {
2649     return !(self->type == OB_CLIENT_TYPE_MENU ||
2650              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2651              self->type == OB_CLIENT_TYPE_SPLASH ||
2652              self->type == OB_CLIENT_TYPE_DOCK);
2653 }
2654
2655 gboolean client_enter_focusable(ObClient *self)
2656 {
2657     /* you can focus desktops but it shouldn't on enter */
2658     return (client_mouse_focusable(self) &&
2659             self->type != OB_CLIENT_TYPE_DESKTOP);
2660 }
2661
2662
2663 static void client_apply_startup_state(ObClient *self,
2664                                        gint x, gint y, gint w, gint h)
2665 {
2666     /* save the states that we are going to apply */
2667     gboolean iconic = self->iconic;
2668     gboolean fullscreen = self->fullscreen;
2669     gboolean undecorated = self->undecorated;
2670     gboolean shaded = self->shaded;
2671     gboolean demands_attention = self->demands_attention;
2672     gboolean max_horz = self->max_horz;
2673     gboolean max_vert = self->max_vert;
2674     Rect oldarea;
2675     gint l;
2676
2677     /* turn them all off in the client, so they won't affect the window
2678        being placed */
2679     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2680         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2681
2682     /* move the client to its placed position, or it it's already there,
2683        generate a ConfigureNotify telling the client where it is.
2684
2685        do this after adjusting the frame. otherwise it gets all weird and
2686        clients don't work right
2687
2688        do this before applying the states so they have the correct
2689        pre-max/pre-fullscreen values
2690     */
2691     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2692     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2693              self->window, x, y, w, h);
2694     /* save the area, and make it where it should be for the premax stuff */
2695     oldarea = self->area;
2696     RECT_SET(self->area, x, y, w, h);
2697
2698     /* apply the states. these are in a carefully crafted order.. */
2699
2700     if (iconic)
2701         client_iconify(self, TRUE, FALSE, TRUE);
2702     if (fullscreen)
2703         client_fullscreen(self, TRUE);
2704     if (undecorated)
2705         client_set_undecorated(self, TRUE);
2706     if (shaded)
2707         client_shade(self, TRUE);
2708     if (demands_attention)
2709         client_hilite(self, TRUE);
2710
2711     if (max_vert && max_horz)
2712         client_maximize(self, TRUE, 0);
2713     else if (max_vert)
2714         client_maximize(self, TRUE, 2);
2715     else if (max_horz)
2716         client_maximize(self, TRUE, 1);
2717
2718     /* if the window hasn't been configured yet, then do so now, in fact the
2719        x,y,w,h may _not_ be the same as the area rect, which can end up
2720        meaning that the client isn't properly moved/resized by the fullscreen
2721        function
2722        pho can cause this because it maps at size of the screen but not 0,0
2723        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2724        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2725        cuz thats where the pre-fullscreen will be. however the actual area is
2726        not, so this needs to be called even if we have fullscreened/maxed
2727     */
2728     self->area = oldarea;
2729     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2730
2731     /* set the desktop hint, to make sure that it always exists */
2732     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2733
2734     /* nothing to do for the other states:
2735        skip_taskbar
2736        skip_pager
2737        modal
2738        above
2739        below
2740     */
2741 }
2742
2743 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2744 {
2745     /* these should be the current values. this is for when you're not moving,
2746        just resizing */
2747     g_assert(*x == self->area.x);
2748     g_assert(oldw == self->area.width);
2749
2750     /* horizontal */
2751     switch (self->gravity) {
2752     default:
2753     case NorthWestGravity:
2754     case WestGravity:
2755     case SouthWestGravity:
2756     case StaticGravity:
2757     case ForgetGravity:
2758         break;
2759     case NorthGravity:
2760     case CenterGravity:
2761     case SouthGravity:
2762         *x -= (neww - oldw) / 2;
2763         break;
2764     case NorthEastGravity:
2765     case EastGravity:
2766     case SouthEastGravity:
2767         *x -= neww - oldw;
2768         break;
2769     }
2770 }
2771
2772 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2773 {
2774     /* these should be the current values. this is for when you're not moving,
2775        just resizing */
2776     g_assert(*y == self->area.y);
2777     g_assert(oldh == self->area.height);
2778
2779     /* vertical */
2780     switch (self->gravity) {
2781     default:
2782     case NorthWestGravity:
2783     case NorthGravity:
2784     case NorthEastGravity:
2785     case StaticGravity:
2786     case ForgetGravity:
2787         break;
2788     case WestGravity:
2789     case CenterGravity:
2790     case EastGravity:
2791         *y -= (newh - oldh) / 2;
2792         break;
2793     case SouthWestGravity:
2794     case SouthGravity:
2795     case SouthEastGravity:
2796         *y -= newh - oldh;
2797         break;
2798     }
2799 }
2800
2801 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2802                           gint *logicalw, gint *logicalh,
2803                           gboolean user)
2804 {
2805     Rect desired = {*x, *y, *w, *h};
2806     frame_rect_to_frame(self->frame, &desired);
2807
2808     /* make the frame recalculate its dimentions n shit without changing
2809        anything visible for real, this way the constraints below can work with
2810        the updated frame dimensions. */
2811     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2812
2813     /* gets the frame's position */
2814     frame_client_gravity(self->frame, x, y);
2815
2816     /* these positions are frame positions, not client positions */
2817
2818     /* set the size and position if fullscreen */
2819     if (self->fullscreen) {
2820         Rect *a;
2821         guint i;
2822
2823         i = screen_find_monitor(&desired);
2824         a = screen_physical_area_monitor(i);
2825
2826         *x = a->x;
2827         *y = a->y;
2828         *w = a->width;
2829         *h = a->height;
2830
2831         user = FALSE; /* ignore if the client can't be moved/resized when it
2832                          is fullscreening */
2833
2834         g_free(a);
2835     } else if (self->max_horz || self->max_vert) {
2836         Rect *a;
2837         guint i;
2838
2839         /* use all possible struts when maximizing to the full screen */
2840         i = screen_find_monitor(&desired);
2841         a = screen_area(self->desktop, i,
2842                         (self->max_horz && self->max_vert ? NULL : &desired));
2843
2844         /* set the size and position if maximized */
2845         if (self->max_horz) {
2846             *x = a->x;
2847             *w = a->width - self->frame->size.left - self->frame->size.right;
2848         }
2849         if (self->max_vert) {
2850             *y = a->y;
2851             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2852         }
2853
2854         user = FALSE; /* ignore if the client can't be moved/resized when it
2855                          is maximizing */
2856
2857         g_free(a);
2858     }
2859
2860     /* gets the client's position */
2861     frame_frame_gravity(self->frame, x, y);
2862
2863     /* work within the prefered sizes given by the window */
2864     if (!(*w == self->area.width && *h == self->area.height)) {
2865         gint basew, baseh, minw, minh;
2866         gint incw, inch;
2867         gfloat minratio, maxratio;
2868
2869         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2870         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2871         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2872             0 : self->min_ratio;
2873         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2874             0 : self->max_ratio;
2875
2876         /* base size is substituted with min size if not specified */
2877         if (self->base_size.width || self->base_size.height) {
2878             basew = self->base_size.width;
2879             baseh = self->base_size.height;
2880         } else {
2881             basew = self->min_size.width;
2882             baseh = self->min_size.height;
2883         }
2884         /* min size is substituted with base size if not specified */
2885         if (self->min_size.width || self->min_size.height) {
2886             minw = self->min_size.width;
2887             minh = self->min_size.height;
2888         } else {
2889             minw = self->base_size.width;
2890             minh = self->base_size.height;
2891         }
2892
2893         /* if this is a user-requested resize, then check against min/max
2894            sizes */
2895
2896         /* smaller than min size or bigger than max size? */
2897         if (*w > self->max_size.width) *w = self->max_size.width;
2898         if (*w < minw) *w = minw;
2899         if (*h > self->max_size.height) *h = self->max_size.height;
2900         if (*h < minh) *h = minh;
2901
2902         *w -= basew;
2903         *h -= baseh;
2904
2905         /* keep to the increments */
2906         *w /= incw;
2907         *h /= inch;
2908
2909         /* you cannot resize to nothing */
2910         if (basew + *w < 1) *w = 1 - basew;
2911         if (baseh + *h < 1) *h = 1 - baseh;
2912
2913         /* save the logical size */
2914         *logicalw = incw > 1 ? *w : *w + basew;
2915         *logicalh = inch > 1 ? *h : *h + baseh;
2916
2917         *w *= incw;
2918         *h *= inch;
2919
2920         *w += basew;
2921         *h += baseh;
2922
2923         /* adjust the height to match the width for the aspect ratios.
2924            for this, min size is not substituted for base size ever. */
2925         *w -= self->base_size.width;
2926         *h -= self->base_size.height;
2927
2928         if (minratio)
2929             if (*h * minratio > *w) {
2930                 *h = (gint)(*w / minratio);
2931
2932                 /* you cannot resize to nothing */
2933                 if (*h < 1) {
2934                     *h = 1;
2935                     *w = (gint)(*h * minratio);
2936                 }
2937             }
2938         if (maxratio)
2939             if (*h * maxratio < *w) {
2940                 *h = (gint)(*w / maxratio);
2941
2942                 /* you cannot resize to nothing */
2943                 if (*h < 1) {
2944                     *h = 1;
2945                     *w = (gint)(*h * minratio);
2946                 }
2947             }
2948
2949         *w += self->base_size.width;
2950         *h += self->base_size.height;
2951     }
2952
2953     /* these override the above states! if you cant move you can't move! */
2954     if (user) {
2955         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2956             *x = self->area.x;
2957             *y = self->area.y;
2958         }
2959         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2960             *w = self->area.width;
2961             *h = self->area.height;
2962         }
2963     }
2964
2965     g_assert(*w > 0);
2966     g_assert(*h > 0);
2967 }
2968
2969
2970 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2971                       gboolean user, gboolean final, gboolean force_reply)
2972 {
2973     Rect oldframe;
2974     gint oldw, oldh;
2975     gboolean send_resize_client;
2976     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
2977     gboolean fmoved, fresized;
2978     guint fdecor = self->frame->decorations;
2979     gboolean fhorz = self->frame->max_horz;
2980     gboolean fvert = self->frame->max_vert;
2981     gint logicalw, logicalh;
2982
2983     /* find the new x, y, width, and height (and logical size) */
2984     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2985
2986     /* set the logical size if things changed */
2987     if (!(w == self->area.width && h == self->area.height))
2988         SIZE_SET(self->logical_size, logicalw, logicalh);
2989
2990     /* figure out if we moved or resized or what */
2991     moved = (x != self->area.x || y != self->area.y);
2992     resized = (w != self->area.width || h != self->area.height);
2993
2994     oldw = self->area.width;
2995     oldh = self->area.height;
2996     oldframe = self->frame->area;
2997     RECT_SET(self->area, x, y, w, h);
2998
2999     /* for app-requested resizes, always resize if 'resized' is true.
3000        for user-requested ones, only resize if final is true, or when
3001        resizing in redraw mode */
3002     send_resize_client = ((!user && resized) ||
3003                           (user && (final ||
3004                                     (resized && config_resize_redraw))));
3005
3006     /* if the client is enlarging, then resize the client before the frame */
3007     if (send_resize_client && (w > oldw || h > oldh)) {
3008         XMoveResizeWindow(ob_display, self->window,
3009                           self->frame->size.left, self->frame->size.top,
3010                           MAX(w, oldw), MAX(h, oldh));
3011         frame_adjust_client_area(self->frame);
3012     }
3013
3014     /* find the frame's dimensions and move/resize it */
3015     fmoved = moved;
3016     fresized = resized;
3017
3018     /* if decorations changed, then readjust everything for the frame */
3019     if (self->decorations != fdecor ||
3020         self->max_horz != fhorz || self->max_vert != fvert)
3021     {
3022         fmoved = fresized = TRUE;
3023     }
3024
3025     /* adjust the frame */
3026     if (fmoved || fresized) {
3027         gulong ignore_start;
3028         if (!user)
3029             ignore_start = event_start_ignore_all_enters();
3030
3031         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
3032
3033         if (!user)
3034             event_end_ignore_all_enters(ignore_start);
3035     }
3036
3037     if (!user || final) {
3038         gint oldrx = self->root_pos.x;
3039         gint oldry = self->root_pos.y;
3040         /* we have reset the client to 0 border width, so don't include
3041            it in these coords */
3042         POINT_SET(self->root_pos,
3043                   self->frame->area.x + self->frame->size.left -
3044                   self->border_width,
3045                   self->frame->area.y + self->frame->size.top -
3046                   self->border_width);
3047         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
3048             rootmoved = TRUE;
3049     }
3050
3051     /* This is kinda tricky and should not be changed.. let me explain!
3052
3053        When user = FALSE, then the request is coming from the application
3054        itself, and we are more strict about when to send a synthetic
3055        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3056        in this case (if force_reply is true)
3057
3058        When user = TRUE, then the request is coming from "us", like when we
3059        maximize a window or something.  In this case we are more lenient.  We
3060        used to follow the same rules as above, but _Java_ Swing can't handle
3061        this. So just to appease Swing, when user = TRUE, we always send
3062        a synthetic ConfigureNotify to give the window its root coordinates.
3063     */
3064     if ((!user && !resized && (rootmoved || force_reply)) ||
3065         (user && final && rootmoved))
3066     {
3067         XEvent event;
3068
3069         event.type = ConfigureNotify;
3070         event.xconfigure.display = ob_display;
3071         event.xconfigure.event = self->window;
3072         event.xconfigure.window = self->window;
3073
3074         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
3075                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3076
3077         /* root window real coords */
3078         event.xconfigure.x = self->root_pos.x;
3079         event.xconfigure.y = self->root_pos.y;
3080         event.xconfigure.width = w;
3081         event.xconfigure.height = h;
3082         event.xconfigure.border_width = self->border_width;
3083         event.xconfigure.above = None;
3084         event.xconfigure.override_redirect = FALSE;
3085         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3086                    FALSE, StructureNotifyMask, &event);
3087     }
3088
3089     /* if the client is shrinking, then resize the frame before the client.
3090
3091        both of these resize sections may run, because the top one only resizes
3092        in the direction that is growing
3093      */
3094     if (send_resize_client && (w <= oldw || h <= oldh)) {
3095         frame_adjust_client_area(self->frame);
3096         XMoveResizeWindow(ob_display, self->window,
3097                           self->frame->size.left, self->frame->size.top, w, h);
3098     }
3099
3100     XFlush(ob_display);
3101
3102     /* if it moved between monitors, then this can affect the stacking
3103        layer of this window or others - for fullscreen windows */
3104     if (screen_find_monitor(&self->frame->area) !=
3105         screen_find_monitor(&oldframe))
3106     {
3107         client_calc_layer(self);
3108     }
3109 }
3110
3111 void client_fullscreen(ObClient *self, gboolean fs)
3112 {
3113     gint x, y, w, h;
3114
3115     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3116         self->fullscreen == fs) return;                   /* already done */
3117
3118     self->fullscreen = fs;
3119     client_change_state(self); /* change the state hints on the client */
3120
3121     if (fs) {
3122         self->pre_fullscreen_area = self->area;
3123         /* if the window is maximized, its area isn't all that meaningful.
3124            save it's premax area instead. */
3125         if (self->max_horz) {
3126             self->pre_fullscreen_area.x = self->pre_max_area.x;
3127             self->pre_fullscreen_area.width = self->pre_max_area.width;
3128         }
3129         if (self->max_vert) {
3130             self->pre_fullscreen_area.y = self->pre_max_area.y;
3131             self->pre_fullscreen_area.height = self->pre_max_area.height;
3132         }
3133
3134         /* these will help configure_full figure out where to fullscreen
3135            the window */
3136         x = self->area.x;
3137         y = self->area.y;
3138         w = self->area.width;
3139         h = self->area.height;
3140     } else {
3141         g_assert(self->pre_fullscreen_area.width > 0 &&
3142                  self->pre_fullscreen_area.height > 0);
3143
3144         x = self->pre_fullscreen_area.x;
3145         y = self->pre_fullscreen_area.y;
3146         w = self->pre_fullscreen_area.width;
3147         h = self->pre_fullscreen_area.height;
3148         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3149     }
3150
3151     ob_debug("Window %s going fullscreen (%d)\n",
3152              self->title, self->fullscreen);
3153
3154     client_setup_decor_and_functions(self, FALSE);
3155     client_move_resize(self, x, y, w, h);
3156
3157     /* and adjust our layer/stacking. do this after resizing the window,
3158        and applying decorations, because windows which fill the screen are
3159        considered "fullscreen" and it affects their layer */
3160     client_calc_layer(self);
3161
3162     if (fs) {
3163         /* try focus us when we go into fullscreen mode */
3164         client_focus(self);
3165     }
3166 }
3167
3168 static void client_iconify_recursive(ObClient *self,
3169                                      gboolean iconic, gboolean curdesk,
3170                                      gboolean hide_animation)
3171 {
3172     GSList *it;
3173     gboolean changed = FALSE;
3174
3175
3176     if (self->iconic != iconic) {
3177         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3178                  self->window);
3179
3180         if (iconic) {
3181             /* don't let non-normal windows iconify along with their parents
3182                or whatever */
3183             if (client_normal(self)) {
3184                 self->iconic = iconic;
3185
3186                 /* update the focus lists.. iconic windows go to the bottom of
3187                    the list */
3188                 focus_order_to_bottom(self);
3189
3190                 changed = TRUE;
3191             }
3192         } else {
3193             self->iconic = iconic;
3194
3195             if (curdesk && self->desktop != screen_desktop &&
3196                 self->desktop != DESKTOP_ALL)
3197                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3198
3199             /* this puts it after the current focused window */
3200             focus_order_remove(self);
3201             focus_order_add_new(self);
3202
3203             changed = TRUE;
3204         }
3205     }
3206
3207     if (changed) {
3208         client_change_state(self);
3209         if (config_animate_iconify && !hide_animation)
3210             frame_begin_iconify_animation(self->frame, iconic);
3211         /* do this after starting the animation so it doesn't flash */
3212         client_showhide(self);
3213     }
3214
3215     /* iconify all direct transients, and deiconify all transients
3216        (non-direct too) */
3217     for (it = self->transients; it; it = g_slist_next(it))
3218         if (it->data != self)
3219             if (client_is_direct_child(self, it->data) || !iconic)
3220                 client_iconify_recursive(it->data, iconic, curdesk,
3221                                          hide_animation);
3222 }
3223
3224 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3225                     gboolean hide_animation)
3226 {
3227     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3228         /* move up the transient chain as far as possible first */
3229         self = client_search_top_direct_parent(self);
3230         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3231     }
3232 }
3233
3234 void client_maximize(ObClient *self, gboolean max, gint dir)
3235 {
3236     gint x, y, w, h;
3237
3238     g_assert(dir == 0 || dir == 1 || dir == 2);
3239     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3240
3241     /* check if already done */
3242     if (max) {
3243         if (dir == 0 && self->max_horz && self->max_vert) return;
3244         if (dir == 1 && self->max_horz) return;
3245         if (dir == 2 && self->max_vert) return;
3246     } else {
3247         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3248         if (dir == 1 && !self->max_horz) return;
3249         if (dir == 2 && !self->max_vert) return;
3250     }
3251
3252     /* these will help configure_full figure out which screen to fill with
3253        the window */
3254     x = self->area.x;
3255     y = self->area.y;
3256     w = self->area.width;
3257     h = self->area.height;
3258
3259     if (max) {
3260         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3261             RECT_SET(self->pre_max_area,
3262                      self->area.x, self->pre_max_area.y,
3263                      self->area.width, self->pre_max_area.height);
3264         }
3265         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3266             RECT_SET(self->pre_max_area,
3267                      self->pre_max_area.x, self->area.y,
3268                      self->pre_max_area.width, self->area.height);
3269         }
3270     } else {
3271         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3272             g_assert(self->pre_max_area.width > 0);
3273
3274             x = self->pre_max_area.x;
3275             w = self->pre_max_area.width;
3276
3277             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3278                      0, self->pre_max_area.height);
3279         }
3280         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3281             g_assert(self->pre_max_area.height > 0);
3282
3283             y = self->pre_max_area.y;
3284             h = self->pre_max_area.height;
3285
3286             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3287                      self->pre_max_area.width, 0);
3288         }
3289     }
3290
3291     if (dir == 0 || dir == 1) /* horz */
3292         self->max_horz = max;
3293     if (dir == 0 || dir == 2) /* vert */
3294         self->max_vert = max;
3295
3296     client_change_state(self); /* change the state hints on the client */
3297
3298     client_setup_decor_and_functions(self, FALSE);
3299     client_move_resize(self, x, y, w, h);
3300 }
3301
3302 void client_shade(ObClient *self, gboolean shade)
3303 {
3304     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3305          shade) ||                         /* can't shade */
3306         self->shaded == shade) return;     /* already done */
3307
3308     self->shaded = shade;
3309     client_change_state(self);
3310     client_change_wm_state(self); /* the window is being hidden/shown */
3311     /* resize the frame to just the titlebar */
3312     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3313 }
3314
3315 static void client_ping_event(ObClient *self, gboolean dead)
3316 {
3317     self->not_responding = dead;
3318     client_update_title(self);
3319
3320     if (!dead) {
3321         /* try kill it nicely the first time again, if it started responding
3322            at some point */
3323         self->close_tried_term = FALSE;
3324     }
3325 }
3326
3327 void client_close(ObClient *self)
3328 {
3329     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3330
3331     /* in the case that the client provides no means to requesting that it
3332        close, we just kill it */
3333     if (!self->delete_window)
3334         /* don't use client_kill(), we should only kill based on PID in
3335            response to a lack of PING replies */
3336         XKillClient(ob_display, self->window);
3337     else if (self->not_responding)
3338         client_kill(self);
3339     else
3340         /* request the client to close with WM_DELETE_WINDOW */
3341         PROP_MSG_TO(self->window, self->window, wm_protocols,
3342                     prop_atoms.wm_delete_window, event_curtime, 0, 0, 0,
3343                     NoEventMask);
3344 }
3345
3346 void client_kill(ObClient *self)
3347 {
3348     if (!self->client_machine && self->pid) {
3349         /* running on the local host */
3350         if (!self->close_tried_term) {
3351             ob_debug("killing window 0x%x with pid %lu, with SIGTERM\n",
3352                      self->window, self->pid);
3353             kill(self->pid, SIGTERM);
3354             self->close_tried_term = TRUE;
3355
3356             /* show that we're trying to kill it */
3357             client_update_title(self);
3358         }
3359         else {
3360             ob_debug("killing window 0x%x with pid %lu, with SIGKILL\n",
3361                      self->window, self->pid);
3362             kill(self->pid, SIGKILL); /* kill -9 */
3363         }
3364     }
3365     else
3366         XKillClient(ob_display, self->window);
3367 }
3368
3369 void client_hilite(ObClient *self, gboolean hilite)
3370 {
3371     if (self->demands_attention == hilite)
3372         return; /* no change */
3373
3374     /* don't allow focused windows to hilite */
3375     self->demands_attention = hilite && !client_focused(self);
3376     if (self->frame != NULL) { /* if we're mapping, just set the state */
3377         if (self->demands_attention)
3378             frame_flash_start(self->frame);
3379         else
3380             frame_flash_stop(self->frame);
3381         client_change_state(self);
3382     }
3383 }
3384
3385 static void client_set_desktop_recursive(ObClient *self,
3386                                          guint target,
3387                                          gboolean donthide,
3388                                          gboolean dontraise)
3389 {
3390     guint old;
3391     GSList *it;
3392
3393     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3394
3395         ob_debug("Setting desktop %u\n", target+1);
3396
3397         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3398
3399         old = self->desktop;
3400         self->desktop = target;
3401         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3402         /* the frame can display the current desktop state */
3403         frame_adjust_state(self->frame);
3404         /* 'move' the window to the new desktop */
3405         if (!donthide)
3406             client_hide(self);
3407         client_show(self);
3408         /* raise if it was not already on the desktop */
3409         if (old != DESKTOP_ALL && !dontraise)
3410             stacking_raise(CLIENT_AS_WINDOW(self));
3411         if (STRUT_EXISTS(self->strut))
3412             screen_update_areas();
3413         else
3414             /* the new desktop's geometry may be different, so we may need to
3415                resize, for example if we are maximized */
3416             client_reconfigure(self, FALSE);
3417     }
3418
3419     /* move all transients */
3420     for (it = self->transients; it; it = g_slist_next(it))
3421         if (it->data != self)
3422             if (client_is_direct_child(self, it->data))
3423                 client_set_desktop_recursive(it->data, target,
3424                                              donthide, dontraise);
3425 }
3426
3427 void client_set_desktop(ObClient *self, guint target,
3428                         gboolean donthide, gboolean dontraise)
3429 {
3430     self = client_search_top_direct_parent(self);
3431     client_set_desktop_recursive(self, target, donthide, dontraise);
3432 }
3433
3434 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3435 {
3436     while (child != parent && (child = client_direct_parent(child)));
3437     return child == parent;
3438 }
3439
3440 ObClient *client_search_modal_child(ObClient *self)
3441 {
3442     GSList *it;
3443     ObClient *ret;
3444
3445     for (it = self->transients; it; it = g_slist_next(it)) {
3446         ObClient *c = it->data;
3447         if ((ret = client_search_modal_child(c))) return ret;
3448         if (c->modal) return c;
3449     }
3450     return NULL;
3451 }
3452
3453 gboolean client_validate(ObClient *self)
3454 {
3455     XEvent e;
3456
3457     XSync(ob_display, FALSE); /* get all events on the server */
3458
3459     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3460         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3461         XPutBackEvent(ob_display, &e);
3462         return FALSE;
3463     }
3464
3465     return TRUE;
3466 }
3467
3468 void client_set_wm_state(ObClient *self, glong state)
3469 {
3470     if (state == self->wmstate) return; /* no change */
3471
3472     switch (state) {
3473     case IconicState:
3474         client_iconify(self, TRUE, TRUE, FALSE);
3475         break;
3476     case NormalState:
3477         client_iconify(self, FALSE, TRUE, FALSE);
3478         break;
3479     }
3480 }
3481
3482 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3483 {
3484     gboolean shaded = self->shaded;
3485     gboolean fullscreen = self->fullscreen;
3486     gboolean undecorated = self->undecorated;
3487     gboolean max_horz = self->max_horz;
3488     gboolean max_vert = self->max_vert;
3489     gboolean modal = self->modal;
3490     gboolean iconic = self->iconic;
3491     gboolean demands_attention = self->demands_attention;
3492     gboolean above = self->above;
3493     gboolean below = self->below;
3494     gint i;
3495
3496     if (!(action == prop_atoms.net_wm_state_add ||
3497           action == prop_atoms.net_wm_state_remove ||
3498           action == prop_atoms.net_wm_state_toggle))
3499         /* an invalid action was passed to the client message, ignore it */
3500         return;
3501
3502     for (i = 0; i < 2; ++i) {
3503         Atom state = i == 0 ? data1 : data2;
3504
3505         if (!state) continue;
3506
3507         /* if toggling, then pick whether we're adding or removing */
3508         if (action == prop_atoms.net_wm_state_toggle) {
3509             if (state == prop_atoms.net_wm_state_modal)
3510                 action = modal ? prop_atoms.net_wm_state_remove :
3511                     prop_atoms.net_wm_state_add;
3512             else if (state == prop_atoms.net_wm_state_maximized_vert)
3513                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3514                     prop_atoms.net_wm_state_add;
3515             else if (state == prop_atoms.net_wm_state_maximized_horz)
3516                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3517                     prop_atoms.net_wm_state_add;
3518             else if (state == prop_atoms.net_wm_state_shaded)
3519                 action = shaded ? prop_atoms.net_wm_state_remove :
3520                     prop_atoms.net_wm_state_add;
3521             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3522                 action = self->skip_taskbar ?
3523                     prop_atoms.net_wm_state_remove :
3524                     prop_atoms.net_wm_state_add;
3525             else if (state == prop_atoms.net_wm_state_skip_pager)
3526                 action = self->skip_pager ?
3527                     prop_atoms.net_wm_state_remove :
3528                     prop_atoms.net_wm_state_add;
3529             else if (state == prop_atoms.net_wm_state_hidden)
3530                 action = self->iconic ?
3531                     prop_atoms.net_wm_state_remove :
3532                     prop_atoms.net_wm_state_add;
3533             else if (state == prop_atoms.net_wm_state_fullscreen)
3534                 action = fullscreen ?
3535                     prop_atoms.net_wm_state_remove :
3536                     prop_atoms.net_wm_state_add;
3537             else if (state == prop_atoms.net_wm_state_above)
3538                 action = self->above ? prop_atoms.net_wm_state_remove :
3539                     prop_atoms.net_wm_state_add;
3540             else if (state == prop_atoms.net_wm_state_below)
3541                 action = self->below ? prop_atoms.net_wm_state_remove :
3542                     prop_atoms.net_wm_state_add;
3543             else if (state == prop_atoms.net_wm_state_demands_attention)
3544                 action = self->demands_attention ?
3545                     prop_atoms.net_wm_state_remove :
3546                     prop_atoms.net_wm_state_add;
3547             else if (state == prop_atoms.ob_wm_state_undecorated)
3548                 action = undecorated ? prop_atoms.net_wm_state_remove :
3549                     prop_atoms.net_wm_state_add;
3550         }
3551
3552         if (action == prop_atoms.net_wm_state_add) {
3553             if (state == prop_atoms.net_wm_state_modal) {
3554                 modal = TRUE;
3555             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3556                 max_vert = TRUE;
3557             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3558                 max_horz = TRUE;
3559             } else if (state == prop_atoms.net_wm_state_shaded) {
3560                 shaded = TRUE;
3561             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3562                 self->skip_taskbar = TRUE;
3563             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3564                 self->skip_pager = TRUE;
3565             } else if (state == prop_atoms.net_wm_state_hidden) {
3566                 iconic = TRUE;
3567             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3568                 fullscreen = TRUE;
3569             } else if (state == prop_atoms.net_wm_state_above) {
3570                 above = TRUE;
3571                 below = FALSE;
3572             } else if (state == prop_atoms.net_wm_state_below) {
3573                 above = FALSE;
3574                 below = TRUE;
3575             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3576                 demands_attention = TRUE;
3577             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3578                 undecorated = TRUE;
3579             }
3580
3581         } else { /* action == prop_atoms.net_wm_state_remove */
3582             if (state == prop_atoms.net_wm_state_modal) {
3583                 modal = FALSE;
3584             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3585                 max_vert = FALSE;
3586             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3587                 max_horz = FALSE;
3588             } else if (state == prop_atoms.net_wm_state_shaded) {
3589                 shaded = FALSE;
3590             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3591                 self->skip_taskbar = FALSE;
3592             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3593                 self->skip_pager = FALSE;
3594             } else if (state == prop_atoms.net_wm_state_hidden) {
3595                 iconic = FALSE;
3596             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3597                 fullscreen = FALSE;
3598             } else if (state == prop_atoms.net_wm_state_above) {
3599                 above = FALSE;
3600             } else if (state == prop_atoms.net_wm_state_below) {
3601                 below = FALSE;
3602             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3603                 demands_attention = FALSE;
3604             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3605                 undecorated = FALSE;
3606             }
3607         }
3608     }
3609
3610     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3611         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3612             /* toggling both */
3613             if (max_horz == max_vert) { /* both going the same way */
3614                 client_maximize(self, max_horz, 0);
3615             } else {
3616                 client_maximize(self, max_horz, 1);
3617                 client_maximize(self, max_vert, 2);
3618             }
3619         } else {
3620             /* toggling one */
3621             if (max_horz != self->max_horz)
3622                 client_maximize(self, max_horz, 1);
3623             else
3624                 client_maximize(self, max_vert, 2);
3625         }
3626     }
3627     /* change fullscreen state before shading, as it will affect if the window
3628        can shade or not */
3629     if (fullscreen != self->fullscreen)
3630         client_fullscreen(self, fullscreen);
3631     if (shaded != self->shaded)
3632         client_shade(self, shaded);
3633     if (undecorated != self->undecorated)
3634         client_set_undecorated(self, undecorated);
3635     if (above != self->above || below != self->below) {
3636         self->above = above;
3637         self->below = below;
3638         client_calc_layer(self);
3639     }
3640
3641     if (modal != self->modal) {
3642         self->modal = modal;
3643         /* when a window changes modality, then its stacking order with its
3644            transients needs to change */
3645         stacking_raise(CLIENT_AS_WINDOW(self));
3646
3647         /* it also may get focused. if something is focused that shouldn't
3648            be focused anymore, then move the focus */
3649         if (focus_client && client_focus_target(focus_client) != focus_client)
3650             client_focus(focus_client);
3651     }
3652
3653     if (iconic != self->iconic)
3654         client_iconify(self, iconic, FALSE, FALSE);
3655
3656     if (demands_attention != self->demands_attention)
3657         client_hilite(self, demands_attention);
3658
3659     client_change_state(self); /* change the hint to reflect these changes */
3660 }
3661
3662 ObClient *client_focus_target(ObClient *self)
3663 {
3664     ObClient *child = NULL;
3665
3666     child = client_search_modal_child(self);
3667     if (child) return child;
3668     return self;
3669 }
3670
3671 gboolean client_can_focus(ObClient *self)
3672 {
3673     /* choose the correct target */
3674     self = client_focus_target(self);
3675
3676     if (!self->frame->visible)
3677         return FALSE;
3678
3679     if (!(self->can_focus || self->focus_notify))
3680         return FALSE;
3681
3682     return TRUE;
3683 }
3684
3685 gboolean client_focus(ObClient *self)
3686 {
3687     /* we might not focus this window, so if we have modal children which would
3688        be focused instead, bring them to this desktop */
3689     client_bring_modal_windows(self);
3690
3691     /* choose the correct target */
3692     self = client_focus_target(self);
3693
3694     if (!client_can_focus(self)) {
3695         ob_debug_type(OB_DEBUG_FOCUS,
3696                       "Client %s can't be focused\n", self->title);
3697         return FALSE;
3698     }
3699
3700     ob_debug_type(OB_DEBUG_FOCUS,
3701                   "Focusing client \"%s\" (0x%x) at time %u\n",
3702                   self->title, self->window, event_curtime);
3703
3704     /* if using focus_delay, stop the timer now so that focus doesn't
3705        go moving on us */
3706     event_halt_focus_delay();
3707
3708     /* if there is a grab going on, then we need to cancel it. if we move
3709        focus during the grab, applications will get NotifyWhileGrabbed events
3710        and ignore them !
3711
3712        actions should not rely on being able to move focus during an
3713        interactive grab.
3714     */
3715     event_cancel_all_key_grabs();
3716
3717     xerror_set_ignore(TRUE);
3718     xerror_occured = FALSE;
3719
3720     if (self->can_focus) {
3721         /* This can cause a BadMatch error with CurrentTime, or if an app
3722            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3723         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3724                        event_curtime);
3725     }
3726
3727     if (self->focus_notify) {
3728         XEvent ce;
3729         ce.xclient.type = ClientMessage;
3730         ce.xclient.message_type = prop_atoms.wm_protocols;
3731         ce.xclient.display = ob_display;
3732         ce.xclient.window = self->window;
3733         ce.xclient.format = 32;
3734         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3735         ce.xclient.data.l[1] = event_curtime;
3736         ce.xclient.data.l[2] = 0l;
3737         ce.xclient.data.l[3] = 0l;
3738         ce.xclient.data.l[4] = 0l;
3739         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3740     }
3741
3742     xerror_set_ignore(FALSE);
3743
3744     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3745     return !xerror_occured;
3746 }
3747
3748 static void client_present(ObClient *self, gboolean here, gboolean raise,
3749                            gboolean unshade)
3750 {
3751     if (client_normal(self) && screen_showing_desktop)
3752         screen_show_desktop(FALSE, self);
3753     if (self->iconic)
3754         client_iconify(self, FALSE, here, FALSE);
3755     if (self->desktop != DESKTOP_ALL &&
3756         self->desktop != screen_desktop)
3757     {
3758         if (here)
3759             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3760         else
3761             screen_set_desktop(self->desktop, FALSE);
3762     } else if (!self->frame->visible)
3763         /* if its not visible for other reasons, then don't mess
3764            with it */
3765         return;
3766     if (self->shaded && unshade)
3767         client_shade(self, FALSE);
3768     if (raise)
3769         stacking_raise(CLIENT_AS_WINDOW(self));
3770
3771     client_focus(self);
3772 }
3773
3774 void client_activate(ObClient *self, gboolean here, gboolean raise,
3775                      gboolean unshade, gboolean user)
3776 {
3777     client_present(self, here, raise, unshade);
3778 }
3779
3780 static void client_bring_windows_recursive(ObClient *self,
3781                                            guint desktop,
3782                                            gboolean helpers,
3783                                            gboolean modals,
3784                                            gboolean iconic)
3785 {
3786     GSList *it;
3787
3788     for (it = self->transients; it; it = g_slist_next(it))
3789         client_bring_windows_recursive(it->data, desktop,
3790                                        helpers, modals, iconic);
3791
3792     if (((helpers && client_helper(self)) ||
3793          (modals && self->modal)) &&
3794         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3795          (iconic && self->iconic)))
3796     {
3797         if (iconic && self->iconic)
3798             client_iconify(self, FALSE, TRUE, FALSE);
3799         else
3800             client_set_desktop(self, desktop, FALSE, FALSE);
3801     }
3802 }
3803
3804 void client_bring_helper_windows(ObClient *self)
3805 {
3806     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3807 }
3808
3809 void client_bring_modal_windows(ObClient *self)
3810 {
3811     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3812 }
3813
3814 gboolean client_focused(ObClient *self)
3815 {
3816     return self == focus_client;
3817 }
3818
3819 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3820 {
3821     guint i;
3822     gulong min_diff, min_i;
3823
3824     if (!self->nicons) {
3825         ObClientIcon *parent = NULL;
3826         GSList *it;
3827
3828         for (it = self->parents; it; it = g_slist_next(it)) {
3829             ObClient *c = it->data;
3830             if ((parent = client_icon_recursive(c, w, h)))
3831                 break;
3832         }
3833
3834         return parent;
3835     }
3836
3837     /* some kind of crappy approximation to find the icon closest in size to
3838        what we requested, but icons are generally all the same ratio as
3839        eachother so it's good enough. */
3840
3841     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3842     min_i = 0;
3843
3844     for (i = 1; i < self->nicons; ++i) {
3845         gulong diff;
3846
3847         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3848         if (diff < min_diff) {
3849             min_diff = diff;
3850             min_i = i;
3851         }
3852     }
3853     return &self->icons[min_i];
3854 }
3855
3856 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3857 {
3858     ObClientIcon *ret;
3859     static ObClientIcon deficon;
3860
3861     if (!(ret = client_icon_recursive(self, w, h))) {
3862         deficon.width = deficon.height = 48;
3863         deficon.data = ob_rr_theme->def_win_icon;
3864         ret = &deficon;
3865     }
3866     return ret;
3867 }
3868
3869 void client_set_layer(ObClient *self, gint layer)
3870 {
3871     if (layer < 0) {
3872         self->below = TRUE;
3873         self->above = FALSE;
3874     } else if (layer == 0) {
3875         self->below = self->above = FALSE;
3876     } else {
3877         self->below = FALSE;
3878         self->above = TRUE;
3879     }
3880     client_calc_layer(self);
3881     client_change_state(self); /* reflect this in the state hints */
3882 }
3883
3884 void client_set_undecorated(ObClient *self, gboolean undecorated)
3885 {
3886     if (self->undecorated != undecorated &&
3887         /* don't let it undecorate if the function is missing, but let
3888            it redecorate */
3889         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3890     {
3891         self->undecorated = undecorated;
3892         client_setup_decor_and_functions(self, TRUE);
3893         client_change_state(self); /* reflect this in the state hints */
3894     }
3895 }
3896
3897 guint client_monitor(ObClient *self)
3898 {
3899     return screen_find_monitor(&self->frame->area);
3900 }
3901
3902 ObClient *client_direct_parent(ObClient *self)
3903 {
3904     if (!self->parents) return NULL;
3905     if (self->transient_for_group) return NULL;
3906     return self->parents->data;
3907 }
3908
3909 ObClient *client_search_top_direct_parent(ObClient *self)
3910 {
3911     ObClient *p;
3912     while ((p = client_direct_parent(self))) self = p;
3913     return self;
3914 }
3915
3916 static GSList *client_search_all_top_parents_internal(ObClient *self,
3917                                                       gboolean bylayer,
3918                                                       ObStackingLayer layer)
3919 {
3920     GSList *ret;
3921     ObClient *p;
3922
3923     /* move up the direct transient chain as far as possible */
3924     while ((p = client_direct_parent(self)) &&
3925            (!bylayer || p->layer == layer))
3926         self = p;
3927
3928     if (!self->parents)
3929         ret = g_slist_prepend(NULL, self);
3930     else
3931         ret = g_slist_copy(self->parents);
3932
3933     return ret;
3934 }
3935
3936 GSList *client_search_all_top_parents(ObClient *self)
3937 {
3938     return client_search_all_top_parents_internal(self, FALSE, 0);
3939 }
3940
3941 GSList *client_search_all_top_parents_layer(ObClient *self)
3942 {
3943     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3944 }
3945
3946 ObClient *client_search_focus_parent(ObClient *self)
3947 {
3948     GSList *it;
3949
3950     for (it = self->parents; it; it = g_slist_next(it))
3951         if (client_focused(it->data)) return it->data;
3952
3953     return NULL;
3954 }
3955
3956 ObClient *client_search_parent(ObClient *self, ObClient *search)
3957 {
3958     GSList *it;
3959
3960     for (it = self->parents; it; it = g_slist_next(it))
3961         if (it->data == search) return search;
3962
3963     return NULL;
3964 }
3965
3966 ObClient *client_search_transient(ObClient *self, ObClient *search)
3967 {
3968     GSList *sit;
3969
3970     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3971         if (sit->data == search)
3972             return search;
3973         if (client_search_transient(sit->data, search))
3974             return search;
3975     }
3976     return NULL;
3977 }
3978
3979 static void detect_edge(Rect area, ObDirection dir,
3980                         gint my_head, gint my_size,
3981                         gint my_edge_start, gint my_edge_size,
3982                         gint *dest, gboolean *near_edge)
3983 {
3984     gint edge_start, edge_size, head, tail;
3985     gboolean skip_head = FALSE, skip_tail = FALSE;
3986
3987     switch (dir) {
3988         case OB_DIRECTION_NORTH:
3989         case OB_DIRECTION_SOUTH:
3990             edge_start = area.x;
3991             edge_size = area.width;
3992             break;
3993         case OB_DIRECTION_EAST:
3994         case OB_DIRECTION_WEST:
3995             edge_start = area.y;
3996             edge_size = area.height;
3997             break;
3998         default:
3999             g_assert_not_reached();
4000     }
4001
4002     /* do we collide with this window? */
4003     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
4004                 edge_start, edge_size))
4005         return;
4006
4007     switch (dir) {
4008         case OB_DIRECTION_NORTH:
4009             head = RECT_BOTTOM(area);
4010             tail = RECT_TOP(area);
4011             break;
4012         case OB_DIRECTION_SOUTH:
4013             head = RECT_TOP(area);
4014             tail = RECT_BOTTOM(area);
4015             break;
4016         case OB_DIRECTION_WEST:
4017             head = RECT_RIGHT(area);
4018             tail = RECT_LEFT(area);
4019             break;
4020         case OB_DIRECTION_EAST:
4021             head = RECT_LEFT(area);
4022             tail = RECT_RIGHT(area);
4023             break;
4024         default:
4025             g_assert_not_reached();
4026     }
4027     switch (dir) {
4028         case OB_DIRECTION_NORTH:
4029         case OB_DIRECTION_WEST:
4030             /* check if our window is past the head of this window */
4031             if (my_head <= head + 1)
4032                 skip_head = TRUE;
4033             /* check if our window's tail is past the tail of this window */
4034             if (my_head + my_size - 1 <= tail)
4035                 skip_tail = TRUE;
4036             /* check if the head of this window is closer than the previously
4037                chosen edge (take into account that the previously chosen
4038                edge might have been a tail, not a head) */
4039             if (head + (*near_edge ? 0 : my_size) < *dest)
4040                 skip_head = TRUE;
4041             /* check if the tail of this window is closer than the previously
4042                chosen edge (take into account that the previously chosen
4043                edge might have been a head, not a tail) */
4044             if (tail - (!*near_edge ? 0 : my_size) < *dest)
4045                 skip_tail = TRUE;
4046             break;
4047         case OB_DIRECTION_SOUTH:
4048         case OB_DIRECTION_EAST:
4049             /* check if our window is past the head of this window */
4050             if (my_head >= head - 1)
4051                 skip_head = TRUE;
4052             /* check if our window's tail is past the tail of this window */
4053             if (my_head - my_size + 1 >= tail)
4054                 skip_tail = TRUE;
4055             /* check if the head of this window is closer than the previously
4056                chosen edge (take into account that the previously chosen
4057                edge might have been a tail, not a head) */
4058             if (head - (*near_edge ? 0 : my_size) > *dest)
4059                 skip_head = TRUE;
4060             /* check if the tail of this window is closer than the previously
4061                chosen edge (take into account that the previously chosen
4062                edge might have been a head, not a tail) */
4063             if (tail + (!*near_edge ? 0 : my_size) > *dest)
4064                 skip_tail = TRUE;
4065             break;
4066         default:
4067             g_assert_not_reached();
4068     }
4069
4070     ob_debug("my head %d size %d\n", my_head, my_size);
4071     ob_debug("head %d tail %d deest %d\n", head, tail, *dest);
4072     if (!skip_head) {
4073         ob_debug("using near edge %d\n", head);
4074         *dest = head;
4075         *near_edge = TRUE;
4076     }
4077     else if (!skip_tail) {
4078         ob_debug("using far edge %d\n", tail);
4079         *dest = tail;
4080         *near_edge = FALSE;
4081     }
4082 }
4083
4084 void client_find_edge_directional(ObClient *self, ObDirection dir,
4085                                   gint my_head, gint my_size,
4086                                   gint my_edge_start, gint my_edge_size,
4087                                   gint *dest, gboolean *near_edge)
4088 {
4089     GList *it;
4090     Rect *a, *mon;
4091     Rect dock_area;
4092     gint edge;
4093
4094     a = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS,
4095                     &self->frame->area);
4096     mon = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR,
4097                       &self->frame->area);
4098
4099     switch (dir) {
4100     case OB_DIRECTION_NORTH:
4101         if (my_head >= RECT_TOP(*mon) + 1)
4102             edge = RECT_TOP(*mon) - 1;
4103         else
4104             edge = RECT_TOP(*a) - 1;
4105         break;
4106     case OB_DIRECTION_SOUTH:
4107         if (my_head <= RECT_BOTTOM(*mon) - 1)
4108             edge = RECT_BOTTOM(*mon) + 1;
4109         else
4110             edge = RECT_BOTTOM(*a) + 1;
4111         break;
4112     case OB_DIRECTION_EAST:
4113         if (my_head <= RECT_RIGHT(*mon) - 1)
4114             edge = RECT_RIGHT(*mon) + 1;
4115         else
4116             edge = RECT_RIGHT(*a) + 1;
4117         break;
4118     case OB_DIRECTION_WEST:
4119         if (my_head >= RECT_LEFT(*mon) + 1)
4120             edge = RECT_LEFT(*mon) - 1;
4121         else
4122             edge = RECT_LEFT(*a) - 1;
4123         break;
4124     default:
4125         g_assert_not_reached();
4126     }
4127     /* default to the far edge, then narrow it down */
4128     *dest = edge;
4129     *near_edge = TRUE;
4130
4131     for (it = client_list; it; it = g_list_next(it)) {
4132         ObClient *cur = it->data;
4133
4134         /* skip windows to not bump into */
4135         if (cur == self)
4136             continue;
4137         if (cur->iconic)
4138             continue;
4139         if (self->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&
4140             cur->desktop != screen_desktop)
4141             continue;
4142
4143         ob_debug("trying window %s\n", cur->title);
4144
4145         detect_edge(cur->frame->area, dir, my_head, my_size, my_edge_start,
4146                     my_edge_size, dest, near_edge);
4147     }
4148     dock_get_area(&dock_area);
4149     detect_edge(dock_area, dir, my_head, my_size, my_edge_start,
4150                 my_edge_size, dest, near_edge);
4151     g_free(a);
4152     g_free(mon);
4153 }
4154
4155 void client_find_move_directional(ObClient *self, ObDirection dir,
4156                                   gint *x, gint *y)
4157 {
4158     gint head, size;
4159     gint e, e_start, e_size;
4160     gboolean near;
4161
4162     switch (dir) {
4163     case OB_DIRECTION_EAST:
4164         head = RECT_RIGHT(self->frame->area);
4165         size = self->frame->area.width;
4166         e_start = RECT_TOP(self->frame->area);
4167         e_size = self->frame->area.height;
4168         break;
4169     case OB_DIRECTION_WEST:
4170         head = RECT_LEFT(self->frame->area);
4171         size = self->frame->area.width;
4172         e_start = RECT_TOP(self->frame->area);
4173         e_size = self->frame->area.height;
4174         break;
4175     case OB_DIRECTION_NORTH:
4176         head = RECT_TOP(self->frame->area);
4177         size = self->frame->area.height;
4178         e_start = RECT_LEFT(self->frame->area);
4179         e_size = self->frame->area.width;
4180         break;
4181     case OB_DIRECTION_SOUTH:
4182         head = RECT_BOTTOM(self->frame->area);
4183         size = self->frame->area.height;
4184         e_start = RECT_LEFT(self->frame->area);
4185         e_size = self->frame->area.width;
4186         break;
4187     default:
4188         g_assert_not_reached();
4189     }
4190
4191     client_find_edge_directional(self, dir, head, size,
4192                                  e_start, e_size, &e, &near);
4193     *x = self->frame->area.x;
4194     *y = self->frame->area.y;
4195     switch (dir) {
4196     case OB_DIRECTION_EAST:
4197         if (near) e -= self->frame->area.width;
4198         else      e++;
4199         *x = e;
4200         break;
4201     case OB_DIRECTION_WEST:
4202         if (near) e++;
4203         else      e -= self->frame->area.width;
4204         *x = e;
4205         break;
4206     case OB_DIRECTION_NORTH:
4207         if (near) e++;
4208         else      e -= self->frame->area.height;
4209         *y = e;
4210         break;
4211     case OB_DIRECTION_SOUTH:
4212         if (near) e -= self->frame->area.height;
4213         else      e++;
4214         *y = e;
4215         break;
4216     default:
4217         g_assert_not_reached();
4218     }
4219     frame_frame_gravity(self->frame, x, y);
4220 }
4221
4222 void client_find_resize_directional(ObClient *self, ObDirection side,
4223                                     gboolean grow,
4224                                     gint *x, gint *y, gint *w, gint *h)
4225 {
4226     gint head;
4227     gint e, e_start, e_size, delta;
4228     gboolean near;
4229     ObDirection dir;
4230
4231     switch (side) {
4232     case OB_DIRECTION_EAST:
4233         head = RECT_RIGHT(self->frame->area) +
4234             (self->size_inc.width - 1) * (grow ? 1 : -1);
4235         e_start = RECT_TOP(self->frame->area);
4236         e_size = self->frame->area.height;
4237         dir = grow ? OB_DIRECTION_EAST : OB_DIRECTION_WEST;
4238         break;
4239     case OB_DIRECTION_WEST:
4240         head = RECT_LEFT(self->frame->area) -
4241             (self->size_inc.width - 1) * (grow ? 1 : -1);
4242         e_start = RECT_TOP(self->frame->area);
4243         e_size = self->frame->area.height;
4244         dir = grow ? OB_DIRECTION_WEST : OB_DIRECTION_EAST;
4245         break;
4246     case OB_DIRECTION_NORTH:
4247         head = RECT_TOP(self->frame->area) -
4248             (self->size_inc.height - 1) * (grow ? 1 : -1);
4249         e_start = RECT_LEFT(self->frame->area);
4250         e_size = self->frame->area.width;
4251         dir = grow ? OB_DIRECTION_NORTH : OB_DIRECTION_SOUTH;
4252         break;
4253     case OB_DIRECTION_SOUTH:
4254         head = RECT_BOTTOM(self->frame->area) +
4255             (self->size_inc.height - 1) * (grow ? 1 : -1);
4256         e_start = RECT_LEFT(self->frame->area);
4257         e_size = self->frame->area.width;
4258         dir = grow ? OB_DIRECTION_SOUTH : OB_DIRECTION_NORTH;
4259         break;
4260     default:
4261         g_assert_not_reached();
4262     }
4263
4264     ob_debug("head %d dir %d\n", head, dir);
4265     client_find_edge_directional(self, dir, head, 1,
4266                                  e_start, e_size, &e, &near);
4267     ob_debug("edge %d\n", e);
4268     *x = self->frame->area.x;
4269     *y = self->frame->area.y;
4270     *w = self->frame->area.width;
4271     *h = self->frame->area.height;
4272     switch (side) {
4273     case OB_DIRECTION_EAST:
4274         if (grow == near) --e;
4275         delta = e - RECT_RIGHT(self->frame->area);
4276         *w += delta;
4277         break;
4278     case OB_DIRECTION_WEST:
4279         if (grow == near) ++e;
4280         delta = RECT_LEFT(self->frame->area) - e;
4281         *x -= delta;
4282         *w += delta;
4283         break;
4284     case OB_DIRECTION_NORTH:
4285         if (grow == near) ++e;
4286         delta = RECT_TOP(self->frame->area) - e;
4287         *y -= delta;
4288         *h += delta;
4289         break;
4290     case OB_DIRECTION_SOUTH:
4291         if (grow == near) --e;
4292         delta = e - RECT_BOTTOM(self->frame->area);
4293         *h += delta;
4294         break;
4295     default:
4296         g_assert_not_reached();
4297     }
4298     frame_frame_gravity(self->frame, x, y);
4299     *w -= self->frame->size.left + self->frame->size.right;
4300     *h -= self->frame->size.top + self->frame->size.bottom;
4301 }
4302
4303 ObClient* client_under_pointer(void)
4304 {
4305     gint x, y;
4306     GList *it;
4307     ObClient *ret = NULL;
4308
4309     if (screen_pointer_pos(&x, &y)) {
4310         for (it = stacking_list; it; it = g_list_next(it)) {
4311             if (WINDOW_IS_CLIENT(it->data)) {
4312                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4313                 if (c->frame->visible &&
4314                     /* check the desktop, this is done during desktop
4315                        switching and windows are shown/hidden status is not
4316                        reliable */
4317                     (c->desktop == screen_desktop ||
4318                      c->desktop == DESKTOP_ALL) &&
4319                     /* ignore all animating windows */
4320                     !frame_iconify_animating(c->frame) &&
4321                     RECT_CONTAINS(c->frame->area, x, y))
4322                 {
4323                     ret = c;
4324                     break;
4325                 }
4326             }
4327         }
4328     }
4329     return ret;
4330 }
4331
4332 gboolean client_has_group_siblings(ObClient *self)
4333 {
4334     return self->group && self->group->members->next;
4335 }