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              (client_focused(self) || client_search_focus_tree(self)))
2475         l = OB_STACKING_LAYER_FULLSCREEN;
2476     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2477     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2478     else l = OB_STACKING_LAYER_NORMAL;
2479
2480     g_free(monitor);
2481
2482     return l;
2483 }
2484
2485 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2486                                         ObStackingLayer min)
2487 {
2488     ObStackingLayer old, own;
2489     GSList *it;
2490
2491     old = self->layer;
2492     own = calc_layer(self);
2493     self->layer = MAX(own, min);
2494
2495     if (self->layer != old) {
2496         stacking_remove(CLIENT_AS_WINDOW(self));
2497         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2498     }
2499
2500     for (it = self->transients; it; it = g_slist_next(it))
2501         client_calc_layer_recursive(it->data, orig,
2502                                     self->layer);
2503 }
2504
2505 void client_calc_layer(ObClient *self)
2506 {
2507     ObClient *orig;
2508     GSList *it;
2509
2510     orig = self;
2511
2512     /* transients take on the layer of their parents */
2513     it = client_search_all_top_parents(self);
2514
2515     for (; it; it = g_slist_next(it))
2516         client_calc_layer_recursive(it->data, orig, 0);
2517 }
2518
2519 gboolean client_should_show(ObClient *self)
2520 {
2521     if (self->iconic)
2522         return FALSE;
2523     if (client_normal(self) && screen_showing_desktop)
2524         return FALSE;
2525     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2526         return TRUE;
2527
2528     return FALSE;
2529 }
2530
2531 gboolean client_show(ObClient *self)
2532 {
2533     gboolean show = FALSE;
2534
2535     if (client_should_show(self)) {
2536         frame_show(self->frame);
2537         show = TRUE;
2538
2539         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2540            it needs to be in IconicState. This includes when it is on another
2541            desktop!
2542         */
2543         client_change_wm_state(self);
2544     }
2545     return show;
2546 }
2547
2548 gboolean client_hide(ObClient *self)
2549 {
2550     gboolean hide = FALSE;
2551
2552     if (!client_should_show(self)) {
2553         if (self == focus_client) {
2554             /* if there is a grab going on, then we need to cancel it. if we
2555                move focus during the grab, applications will get
2556                NotifyWhileGrabbed events and ignore them !
2557
2558                actions should not rely on being able to move focus during an
2559                interactive grab.
2560             */
2561             event_cancel_all_key_grabs();
2562         }
2563
2564         /* We don't need to ignore enter events here.
2565            The window can hide/iconify in 3 different ways:
2566            1 - through an x message. in this case we ignore all enter events
2567                caused by responding to the x message (unless underMouse)
2568            2 - by a keyboard action. in this case we ignore all enter events
2569                caused by the action
2570            3 - by a mouse action. in this case they are doing stuff with the
2571                mouse and focus _should_ move.
2572
2573            Also in action_end, we simulate an enter event that can't be ignored
2574            so trying to ignore them is futile in case 3 anyways
2575         */
2576
2577         frame_hide(self->frame);
2578         hide = TRUE;
2579
2580         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2581            it needs to be in IconicState. This includes when it is on another
2582            desktop!
2583         */
2584         client_change_wm_state(self);
2585     }
2586     return hide;
2587 }
2588
2589 void client_showhide(ObClient *self)
2590 {
2591     if (!client_show(self))
2592         client_hide(self);
2593 }
2594
2595 gboolean client_normal(ObClient *self) {
2596     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2597               self->type == OB_CLIENT_TYPE_DOCK ||
2598               self->type == OB_CLIENT_TYPE_SPLASH);
2599 }
2600
2601 gboolean client_helper(ObClient *self)
2602 {
2603     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2604             self->type == OB_CLIENT_TYPE_MENU ||
2605             self->type == OB_CLIENT_TYPE_TOOLBAR);
2606 }
2607
2608 gboolean client_mouse_focusable(ObClient *self)
2609 {
2610     return !(self->type == OB_CLIENT_TYPE_MENU ||
2611              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2612              self->type == OB_CLIENT_TYPE_SPLASH ||
2613              self->type == OB_CLIENT_TYPE_DOCK);
2614 }
2615
2616 gboolean client_enter_focusable(ObClient *self)
2617 {
2618     /* you can focus desktops but it shouldn't on enter */
2619     return (client_mouse_focusable(self) &&
2620             self->type != OB_CLIENT_TYPE_DESKTOP);
2621 }
2622
2623
2624 static void client_apply_startup_state(ObClient *self,
2625                                        gint x, gint y, gint w, gint h)
2626 {
2627     /* save the states that we are going to apply */
2628     gboolean iconic = self->iconic;
2629     gboolean fullscreen = self->fullscreen;
2630     gboolean undecorated = self->undecorated;
2631     gboolean shaded = self->shaded;
2632     gboolean demands_attention = self->demands_attention;
2633     gboolean max_horz = self->max_horz;
2634     gboolean max_vert = self->max_vert;
2635     Rect oldarea;
2636     gint l;
2637
2638     /* turn them all off in the client, so they won't affect the window
2639        being placed */
2640     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2641         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2642
2643     /* move the client to its placed position, or it it's already there,
2644        generate a ConfigureNotify telling the client where it is.
2645
2646        do this after adjusting the frame. otherwise it gets all weird and
2647        clients don't work right
2648
2649        do this before applying the states so they have the correct
2650        pre-max/pre-fullscreen values
2651     */
2652     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2653     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2654              self->window, x, y, w, h);
2655     /* save the area, and make it where it should be for the premax stuff */
2656     oldarea = self->area;
2657     RECT_SET(self->area, x, y, w, h);
2658
2659     /* apply the states. these are in a carefully crafted order.. */
2660
2661     if (iconic)
2662         client_iconify(self, TRUE, FALSE, TRUE);
2663     if (fullscreen)
2664         client_fullscreen(self, TRUE);
2665     if (undecorated)
2666         client_set_undecorated(self, TRUE);
2667     if (shaded)
2668         client_shade(self, TRUE);
2669     if (demands_attention)
2670         client_hilite(self, TRUE);
2671
2672     if (max_vert && max_horz)
2673         client_maximize(self, TRUE, 0);
2674     else if (max_vert)
2675         client_maximize(self, TRUE, 2);
2676     else if (max_horz)
2677         client_maximize(self, TRUE, 1);
2678
2679     /* if the window hasn't been configured yet, then do so now, in fact the
2680        x,y,w,h may _not_ be the same as the area rect, which can end up
2681        meaning that the client isn't properly moved/resized by the fullscreen
2682        function
2683        pho can cause this because it maps at size of the screen but not 0,0
2684        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2685        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2686        cuz thats where the pre-fullscreen will be. however the actual area is
2687        not, so this needs to be called even if we have fullscreened/maxed
2688     */
2689     self->area = oldarea;
2690     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2691
2692     /* set the desktop hint, to make sure that it always exists */
2693     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2694
2695     /* nothing to do for the other states:
2696        skip_taskbar
2697        skip_pager
2698        modal
2699        above
2700        below
2701     */
2702 }
2703
2704 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2705 {
2706     /* these should be the current values. this is for when you're not moving,
2707        just resizing */
2708     g_assert(*x == self->area.x);
2709     g_assert(oldw == self->area.width);
2710
2711     /* horizontal */
2712     switch (self->gravity) {
2713     default:
2714     case NorthWestGravity:
2715     case WestGravity:
2716     case SouthWestGravity:
2717     case StaticGravity:
2718     case ForgetGravity:
2719         break;
2720     case NorthGravity:
2721     case CenterGravity:
2722     case SouthGravity:
2723         *x -= (neww - oldw) / 2;
2724         break;
2725     case NorthEastGravity:
2726     case EastGravity:
2727     case SouthEastGravity:
2728         *x -= neww - oldw;
2729         break;
2730     }
2731 }
2732
2733 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2734 {
2735     /* these should be the current values. this is for when you're not moving,
2736        just resizing */
2737     g_assert(*y == self->area.y);
2738     g_assert(oldh == self->area.height);
2739
2740     /* vertical */
2741     switch (self->gravity) {
2742     default:
2743     case NorthWestGravity:
2744     case NorthGravity:
2745     case NorthEastGravity:
2746     case StaticGravity:
2747     case ForgetGravity:
2748         break;
2749     case WestGravity:
2750     case CenterGravity:
2751     case EastGravity:
2752         *y -= (newh - oldh) / 2;
2753         break;
2754     case SouthWestGravity:
2755     case SouthGravity:
2756     case SouthEastGravity:
2757         *y -= newh - oldh;
2758         break;
2759     }
2760 }
2761
2762 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2763                           gint *logicalw, gint *logicalh,
2764                           gboolean user)
2765 {
2766     Rect desired = {*x, *y, *w, *h};
2767     frame_rect_to_frame(self->frame, &desired);
2768
2769     /* make the frame recalculate its dimentions n shit without changing
2770        anything visible for real, this way the constraints below can work with
2771        the updated frame dimensions. */
2772     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2773
2774     /* gets the frame's position */
2775     frame_client_gravity(self->frame, x, y);
2776
2777     /* these positions are frame positions, not client positions */
2778
2779     /* set the size and position if fullscreen */
2780     if (self->fullscreen) {
2781         Rect *a;
2782         guint i;
2783
2784         i = screen_find_monitor(&desired);
2785         a = screen_physical_area_monitor(i);
2786
2787         *x = a->x;
2788         *y = a->y;
2789         *w = a->width;
2790         *h = a->height;
2791
2792         user = FALSE; /* ignore if the client can't be moved/resized when it
2793                          is fullscreening */
2794
2795         g_free(a);
2796     } else if (self->max_horz || self->max_vert) {
2797         Rect *a;
2798         guint i;
2799
2800         /* use all possible struts when maximizing to the full screen */
2801         i = screen_find_monitor(&desired);
2802         a = screen_area(self->desktop, i,
2803                         (self->max_horz && self->max_vert ? NULL : &desired));
2804
2805         /* set the size and position if maximized */
2806         if (self->max_horz) {
2807             *x = a->x;
2808             *w = a->width - self->frame->size.left - self->frame->size.right;
2809         }
2810         if (self->max_vert) {
2811             *y = a->y;
2812             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2813         }
2814
2815         user = FALSE; /* ignore if the client can't be moved/resized when it
2816                          is maximizing */
2817
2818         g_free(a);
2819     }
2820
2821     /* gets the client's position */
2822     frame_frame_gravity(self->frame, x, y);
2823
2824     /* work within the prefered sizes given by the window */
2825     if (!(*w == self->area.width && *h == self->area.height)) {
2826         gint basew, baseh, minw, minh;
2827         gint incw, inch;
2828         gfloat minratio, maxratio;
2829
2830         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2831         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2832         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2833             0 : self->min_ratio;
2834         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2835             0 : self->max_ratio;
2836
2837         /* base size is substituted with min size if not specified */
2838         if (self->base_size.width || self->base_size.height) {
2839             basew = self->base_size.width;
2840             baseh = self->base_size.height;
2841         } else {
2842             basew = self->min_size.width;
2843             baseh = self->min_size.height;
2844         }
2845         /* min size is substituted with base size if not specified */
2846         if (self->min_size.width || self->min_size.height) {
2847             minw = self->min_size.width;
2848             minh = self->min_size.height;
2849         } else {
2850             minw = self->base_size.width;
2851             minh = self->base_size.height;
2852         }
2853
2854         /* if this is a user-requested resize, then check against min/max
2855            sizes */
2856
2857         /* smaller than min size or bigger than max size? */
2858         if (*w > self->max_size.width) *w = self->max_size.width;
2859         if (*w < minw) *w = minw;
2860         if (*h > self->max_size.height) *h = self->max_size.height;
2861         if (*h < minh) *h = minh;
2862
2863         *w -= basew;
2864         *h -= baseh;
2865
2866         /* keep to the increments */
2867         *w /= incw;
2868         *h /= inch;
2869
2870         /* you cannot resize to nothing */
2871         if (basew + *w < 1) *w = 1 - basew;
2872         if (baseh + *h < 1) *h = 1 - baseh;
2873
2874         /* save the logical size */
2875         *logicalw = incw > 1 ? *w : *w + basew;
2876         *logicalh = inch > 1 ? *h : *h + baseh;
2877
2878         *w *= incw;
2879         *h *= inch;
2880
2881         *w += basew;
2882         *h += baseh;
2883
2884         /* adjust the height to match the width for the aspect ratios.
2885            for this, min size is not substituted for base size ever. */
2886         *w -= self->base_size.width;
2887         *h -= self->base_size.height;
2888
2889         if (minratio)
2890             if (*h * minratio > *w) {
2891                 *h = (gint)(*w / minratio);
2892
2893                 /* you cannot resize to nothing */
2894                 if (*h < 1) {
2895                     *h = 1;
2896                     *w = (gint)(*h * minratio);
2897                 }
2898             }
2899         if (maxratio)
2900             if (*h * maxratio < *w) {
2901                 *h = (gint)(*w / maxratio);
2902
2903                 /* you cannot resize to nothing */
2904                 if (*h < 1) {
2905                     *h = 1;
2906                     *w = (gint)(*h * minratio);
2907                 }
2908             }
2909
2910         *w += self->base_size.width;
2911         *h += self->base_size.height;
2912     }
2913
2914     /* these override the above states! if you cant move you can't move! */
2915     if (user) {
2916         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2917             *x = self->area.x;
2918             *y = self->area.y;
2919         }
2920         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2921             *w = self->area.width;
2922             *h = self->area.height;
2923         }
2924     }
2925
2926     g_assert(*w > 0);
2927     g_assert(*h > 0);
2928 }
2929
2930
2931 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2932                       gboolean user, gboolean final, gboolean force_reply)
2933 {
2934     gint oldw, oldh;
2935     gboolean send_resize_client;
2936     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
2937     gboolean fmoved, fresized;
2938     guint fdecor = self->frame->decorations;
2939     gboolean fhorz = self->frame->max_horz;
2940     gboolean fvert = self->frame->max_vert;
2941     gint logicalw, logicalh;
2942
2943     /* find the new x, y, width, and height (and logical size) */
2944     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2945
2946     /* set the logical size if things changed */
2947     if (!(w == self->area.width && h == self->area.height))
2948         SIZE_SET(self->logical_size, logicalw, logicalh);
2949
2950     /* figure out if we moved or resized or what */
2951     moved = (x != self->area.x || y != self->area.y);
2952     resized = (w != self->area.width || h != self->area.height);
2953
2954     oldw = self->area.width;
2955     oldh = self->area.height;
2956     RECT_SET(self->area, x, y, w, h);
2957
2958     /* for app-requested resizes, always resize if 'resized' is true.
2959        for user-requested ones, only resize if final is true, or when
2960        resizing in redraw mode */
2961     send_resize_client = ((!user && resized) ||
2962                           (user && (final ||
2963                                     (resized && config_resize_redraw))));
2964
2965     /* if the client is enlarging, then resize the client before the frame */
2966     if (send_resize_client && (w > oldw || h > oldh)) {
2967         XMoveResizeWindow(ob_display, self->window,
2968                           self->frame->size.left, self->frame->size.top,
2969                           MAX(w, oldw), MAX(h, oldh));
2970         frame_adjust_client_area(self->frame);
2971     }
2972
2973     /* find the frame's dimensions and move/resize it */
2974     fmoved = moved;
2975     fresized = resized;
2976
2977     /* if decorations changed, then readjust everything for the frame */
2978     if (self->decorations != fdecor ||
2979         self->max_horz != fhorz || self->max_vert != fvert)
2980     {
2981         fmoved = fresized = TRUE;
2982     }
2983
2984     /* adjust the frame */
2985     if (fmoved || fresized) {
2986         gulong ignore_start;
2987         if (!user)
2988             ignore_start = event_start_ignore_all_enters();
2989
2990         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2991
2992         if (!user)
2993             event_end_ignore_all_enters(ignore_start);
2994     }
2995
2996     if (!user || final) {
2997         gint oldrx = self->root_pos.x;
2998         gint oldry = self->root_pos.y;
2999         /* we have reset the client to 0 border width, so don't include
3000            it in these coords */
3001         POINT_SET(self->root_pos,
3002                   self->frame->area.x + self->frame->size.left -
3003                   self->border_width,
3004                   self->frame->area.y + self->frame->size.top -
3005                   self->border_width);
3006         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
3007             rootmoved = TRUE;
3008     }
3009
3010     /* This is kinda tricky and should not be changed.. let me explain!
3011
3012        When user = FALSE, then the request is coming from the application
3013        itself, and we are more strict about when to send a synthetic
3014        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3015        in this case (if force_reply is true)
3016
3017        When user = TRUE, then the request is coming from "us", like when we
3018        maximize a window or something.  In this case we are more lenient.  We
3019        used to follow the same rules as above, but _Java_ Swing can't handle
3020        this. So just to appease Swing, when user = TRUE, we always send
3021        a synthetic ConfigureNotify to give the window its root coordinates.
3022     */
3023     if ((!user && !resized && (rootmoved || force_reply)) ||
3024         (user && final && rootmoved))
3025     {
3026         XEvent event;
3027
3028         event.type = ConfigureNotify;
3029         event.xconfigure.display = ob_display;
3030         event.xconfigure.event = self->window;
3031         event.xconfigure.window = self->window;
3032
3033         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
3034                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3035
3036         /* root window real coords */
3037         event.xconfigure.x = self->root_pos.x;
3038         event.xconfigure.y = self->root_pos.y;
3039         event.xconfigure.width = w;
3040         event.xconfigure.height = h;
3041         event.xconfigure.border_width = self->border_width;
3042         event.xconfigure.above = None;
3043         event.xconfigure.override_redirect = FALSE;
3044         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3045                    FALSE, StructureNotifyMask, &event);
3046     }
3047
3048     /* if the client is shrinking, then resize the frame before the client.
3049
3050        both of these resize sections may run, because the top one only resizes
3051        in the direction that is growing
3052      */
3053     if (send_resize_client && (w <= oldw || h <= oldh)) {
3054         frame_adjust_client_area(self->frame);
3055         XMoveResizeWindow(ob_display, self->window,
3056                           self->frame->size.left, self->frame->size.top, w, h);
3057     }
3058
3059     XFlush(ob_display);
3060 }
3061
3062 void client_fullscreen(ObClient *self, gboolean fs)
3063 {
3064     gint x, y, w, h;
3065
3066     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3067         self->fullscreen == fs) return;                   /* already done */
3068
3069     self->fullscreen = fs;
3070     client_change_state(self); /* change the state hints on the client */
3071
3072     if (fs) {
3073         self->pre_fullscreen_area = self->area;
3074         /* if the window is maximized, its area isn't all that meaningful.
3075            save it's premax area instead. */
3076         if (self->max_horz) {
3077             self->pre_fullscreen_area.x = self->pre_max_area.x;
3078             self->pre_fullscreen_area.width = self->pre_max_area.width;
3079         }
3080         if (self->max_vert) {
3081             self->pre_fullscreen_area.y = self->pre_max_area.y;
3082             self->pre_fullscreen_area.height = self->pre_max_area.height;
3083         }
3084
3085         /* these will help configure_full figure out where to fullscreen
3086            the window */
3087         x = self->area.x;
3088         y = self->area.y;
3089         w = self->area.width;
3090         h = self->area.height;
3091     } else {
3092         g_assert(self->pre_fullscreen_area.width > 0 &&
3093                  self->pre_fullscreen_area.height > 0);
3094
3095         x = self->pre_fullscreen_area.x;
3096         y = self->pre_fullscreen_area.y;
3097         w = self->pre_fullscreen_area.width;
3098         h = self->pre_fullscreen_area.height;
3099         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3100     }
3101
3102     ob_debug("Window %s going fullscreen (%d)\n",
3103              self->title, self->fullscreen);
3104
3105     client_setup_decor_and_functions(self, FALSE);
3106     client_move_resize(self, x, y, w, h);
3107
3108     /* and adjust our layer/stacking. do this after resizing the window,
3109        and applying decorations, because windows which fill the screen are
3110        considered "fullscreen" and it affects their layer */
3111     client_calc_layer(self);
3112
3113     if (fs) {
3114         /* try focus us when we go into fullscreen mode */
3115         client_focus(self);
3116     }
3117 }
3118
3119 static void client_iconify_recursive(ObClient *self,
3120                                      gboolean iconic, gboolean curdesk,
3121                                      gboolean hide_animation)
3122 {
3123     GSList *it;
3124     gboolean changed = FALSE;
3125
3126
3127     if (self->iconic != iconic) {
3128         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3129                  self->window);
3130
3131         if (iconic) {
3132             /* don't let non-normal windows iconify along with their parents
3133                or whatever */
3134             if (client_normal(self)) {
3135                 self->iconic = iconic;
3136
3137                 /* update the focus lists.. iconic windows go to the bottom of
3138                    the list */
3139                 focus_order_to_bottom(self);
3140
3141                 changed = TRUE;
3142             }
3143         } else {
3144             self->iconic = iconic;
3145
3146             if (curdesk && self->desktop != screen_desktop &&
3147                 self->desktop != DESKTOP_ALL)
3148                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3149
3150             /* this puts it after the current focused window */
3151             focus_order_remove(self);
3152             focus_order_add_new(self);
3153
3154             changed = TRUE;
3155         }
3156     }
3157
3158     if (changed) {
3159         client_change_state(self);
3160         if (config_animate_iconify && !hide_animation)
3161             frame_begin_iconify_animation(self->frame, iconic);
3162         /* do this after starting the animation so it doesn't flash */
3163         client_showhide(self);
3164     }
3165
3166     /* iconify all direct transients, and deiconify all transients
3167        (non-direct too) */
3168     for (it = self->transients; it; it = g_slist_next(it))
3169         if (it->data != self)
3170             if (client_is_direct_child(self, it->data) || !iconic)
3171                 client_iconify_recursive(it->data, iconic, curdesk,
3172                                          hide_animation);
3173 }
3174
3175 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3176                     gboolean hide_animation)
3177 {
3178     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3179         /* move up the transient chain as far as possible first */
3180         self = client_search_top_direct_parent(self);
3181         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3182     }
3183 }
3184
3185 void client_maximize(ObClient *self, gboolean max, gint dir)
3186 {
3187     gint x, y, w, h;
3188
3189     g_assert(dir == 0 || dir == 1 || dir == 2);
3190     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3191
3192     /* check if already done */
3193     if (max) {
3194         if (dir == 0 && self->max_horz && self->max_vert) return;
3195         if (dir == 1 && self->max_horz) return;
3196         if (dir == 2 && self->max_vert) return;
3197     } else {
3198         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3199         if (dir == 1 && !self->max_horz) return;
3200         if (dir == 2 && !self->max_vert) return;
3201     }
3202
3203     /* these will help configure_full figure out which screen to fill with
3204        the window */
3205     x = self->area.x;
3206     y = self->area.y;
3207     w = self->area.width;
3208     h = self->area.height;
3209
3210     if (max) {
3211         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3212             RECT_SET(self->pre_max_area,
3213                      self->area.x, self->pre_max_area.y,
3214                      self->area.width, self->pre_max_area.height);
3215         }
3216         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3217             RECT_SET(self->pre_max_area,
3218                      self->pre_max_area.x, self->area.y,
3219                      self->pre_max_area.width, self->area.height);
3220         }
3221     } else {
3222         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3223             g_assert(self->pre_max_area.width > 0);
3224
3225             x = self->pre_max_area.x;
3226             w = self->pre_max_area.width;
3227
3228             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3229                      0, self->pre_max_area.height);
3230         }
3231         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3232             g_assert(self->pre_max_area.height > 0);
3233
3234             y = self->pre_max_area.y;
3235             h = self->pre_max_area.height;
3236
3237             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3238                      self->pre_max_area.width, 0);
3239         }
3240     }
3241
3242     if (dir == 0 || dir == 1) /* horz */
3243         self->max_horz = max;
3244     if (dir == 0 || dir == 2) /* vert */
3245         self->max_vert = max;
3246
3247     client_change_state(self); /* change the state hints on the client */
3248
3249     client_setup_decor_and_functions(self, FALSE);
3250     client_move_resize(self, x, y, w, h);
3251 }
3252
3253 void client_shade(ObClient *self, gboolean shade)
3254 {
3255     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3256          shade) ||                         /* can't shade */
3257         self->shaded == shade) return;     /* already done */
3258
3259     self->shaded = shade;
3260     client_change_state(self);
3261     client_change_wm_state(self); /* the window is being hidden/shown */
3262     /* resize the frame to just the titlebar */
3263     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3264 }
3265
3266 static void client_ping_event(ObClient *self, gboolean dead)
3267 {
3268     self->not_responding = dead;
3269     client_update_title(self);
3270
3271     if (!dead) {
3272         /* try kill it nicely the first time again, if it started responding
3273            at some point */
3274         self->close_tried_term = FALSE;
3275     }
3276 }
3277
3278 void client_close(ObClient *self)
3279 {
3280     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3281
3282     /* in the case that the client provides no means to requesting that it
3283        close, we just kill it */
3284     if (!self->delete_window)
3285         /* don't use client_kill(), we should only kill based on PID in
3286            response to a lack of PING replies */
3287         XKillClient(ob_display, self->window);
3288     else if (self->not_responding)
3289         client_kill(self);
3290     else
3291         /* request the client to close with WM_DELETE_WINDOW */
3292         PROP_MSG_TO(self->window, self->window, wm_protocols,
3293                     prop_atoms.wm_delete_window, event_curtime, 0, 0, 0,
3294                     NoEventMask);
3295 }
3296
3297 void client_kill(ObClient *self)
3298 {
3299     if (!self->client_machine && self->pid) {
3300         /* running on the local host */
3301         if (!self->close_tried_term) {
3302             ob_debug("killing window 0x%x with pid %lu, with SIGTERM\n",
3303                      self->window, self->pid);
3304             kill(self->pid, SIGTERM);
3305             self->close_tried_term = TRUE;
3306
3307             /* show that we're trying to kill it */
3308             client_update_title(self);
3309         }
3310         else {
3311             ob_debug("killing window 0x%x with pid %lu, with SIGKILL\n",
3312                      self->window, self->pid);
3313             kill(self->pid, SIGKILL); /* kill -9 */
3314         }
3315     }
3316     else
3317         XKillClient(ob_display, self->window);
3318 }
3319
3320 void client_hilite(ObClient *self, gboolean hilite)
3321 {
3322     if (self->demands_attention == hilite)
3323         return; /* no change */
3324
3325     /* don't allow focused windows to hilite */
3326     self->demands_attention = hilite && !client_focused(self);
3327     if (self->frame != NULL) { /* if we're mapping, just set the state */
3328         if (self->demands_attention)
3329             frame_flash_start(self->frame);
3330         else
3331             frame_flash_stop(self->frame);
3332         client_change_state(self);
3333     }
3334 }
3335
3336 static void client_set_desktop_recursive(ObClient *self,
3337                                          guint target,
3338                                          gboolean donthide,
3339                                          gboolean dontraise)
3340 {
3341     guint old;
3342     GSList *it;
3343
3344     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3345
3346         ob_debug("Setting desktop %u\n", target+1);
3347
3348         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3349
3350         old = self->desktop;
3351         self->desktop = target;
3352         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3353         /* the frame can display the current desktop state */
3354         frame_adjust_state(self->frame);
3355         /* 'move' the window to the new desktop */
3356         if (!donthide)
3357             client_hide(self);
3358         client_show(self);
3359         /* raise if it was not already on the desktop */
3360         if (old != DESKTOP_ALL && !dontraise)
3361             stacking_raise(CLIENT_AS_WINDOW(self));
3362         if (STRUT_EXISTS(self->strut))
3363             screen_update_areas();
3364         else
3365             /* the new desktop's geometry may be different, so we may need to
3366                resize, for example if we are maximized */
3367             client_reconfigure(self, FALSE);
3368     }
3369
3370     /* move all transients */
3371     for (it = self->transients; it; it = g_slist_next(it))
3372         if (it->data != self)
3373             if (client_is_direct_child(self, it->data))
3374                 client_set_desktop_recursive(it->data, target,
3375                                              donthide, dontraise);
3376 }
3377
3378 void client_set_desktop(ObClient *self, guint target,
3379                         gboolean donthide, gboolean dontraise)
3380 {
3381     self = client_search_top_direct_parent(self);
3382     client_set_desktop_recursive(self, target, donthide, dontraise);
3383 }
3384
3385 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3386 {
3387     while (child != parent && (child = client_direct_parent(child)));
3388     return child == parent;
3389 }
3390
3391 ObClient *client_search_modal_child(ObClient *self)
3392 {
3393     GSList *it;
3394     ObClient *ret;
3395
3396     for (it = self->transients; it; it = g_slist_next(it)) {
3397         ObClient *c = it->data;
3398         if ((ret = client_search_modal_child(c))) return ret;
3399         if (c->modal) return c;
3400     }
3401     return NULL;
3402 }
3403
3404 gboolean client_validate(ObClient *self)
3405 {
3406     XEvent e;
3407
3408     XSync(ob_display, FALSE); /* get all events on the server */
3409
3410     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3411         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3412         XPutBackEvent(ob_display, &e);
3413         return FALSE;
3414     }
3415
3416     return TRUE;
3417 }
3418
3419 void client_set_wm_state(ObClient *self, glong state)
3420 {
3421     if (state == self->wmstate) return; /* no change */
3422
3423     switch (state) {
3424     case IconicState:
3425         client_iconify(self, TRUE, TRUE, FALSE);
3426         break;
3427     case NormalState:
3428         client_iconify(self, FALSE, TRUE, FALSE);
3429         break;
3430     }
3431 }
3432
3433 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3434 {
3435     gboolean shaded = self->shaded;
3436     gboolean fullscreen = self->fullscreen;
3437     gboolean undecorated = self->undecorated;
3438     gboolean max_horz = self->max_horz;
3439     gboolean max_vert = self->max_vert;
3440     gboolean modal = self->modal;
3441     gboolean iconic = self->iconic;
3442     gboolean demands_attention = self->demands_attention;
3443     gboolean above = self->above;
3444     gboolean below = self->below;
3445     gint i;
3446
3447     if (!(action == prop_atoms.net_wm_state_add ||
3448           action == prop_atoms.net_wm_state_remove ||
3449           action == prop_atoms.net_wm_state_toggle))
3450         /* an invalid action was passed to the client message, ignore it */
3451         return;
3452
3453     for (i = 0; i < 2; ++i) {
3454         Atom state = i == 0 ? data1 : data2;
3455
3456         if (!state) continue;
3457
3458         /* if toggling, then pick whether we're adding or removing */
3459         if (action == prop_atoms.net_wm_state_toggle) {
3460             if (state == prop_atoms.net_wm_state_modal)
3461                 action = modal ? prop_atoms.net_wm_state_remove :
3462                     prop_atoms.net_wm_state_add;
3463             else if (state == prop_atoms.net_wm_state_maximized_vert)
3464                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3465                     prop_atoms.net_wm_state_add;
3466             else if (state == prop_atoms.net_wm_state_maximized_horz)
3467                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3468                     prop_atoms.net_wm_state_add;
3469             else if (state == prop_atoms.net_wm_state_shaded)
3470                 action = shaded ? prop_atoms.net_wm_state_remove :
3471                     prop_atoms.net_wm_state_add;
3472             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3473                 action = self->skip_taskbar ?
3474                     prop_atoms.net_wm_state_remove :
3475                     prop_atoms.net_wm_state_add;
3476             else if (state == prop_atoms.net_wm_state_skip_pager)
3477                 action = self->skip_pager ?
3478                     prop_atoms.net_wm_state_remove :
3479                     prop_atoms.net_wm_state_add;
3480             else if (state == prop_atoms.net_wm_state_hidden)
3481                 action = self->iconic ?
3482                     prop_atoms.net_wm_state_remove :
3483                     prop_atoms.net_wm_state_add;
3484             else if (state == prop_atoms.net_wm_state_fullscreen)
3485                 action = fullscreen ?
3486                     prop_atoms.net_wm_state_remove :
3487                     prop_atoms.net_wm_state_add;
3488             else if (state == prop_atoms.net_wm_state_above)
3489                 action = self->above ? prop_atoms.net_wm_state_remove :
3490                     prop_atoms.net_wm_state_add;
3491             else if (state == prop_atoms.net_wm_state_below)
3492                 action = self->below ? prop_atoms.net_wm_state_remove :
3493                     prop_atoms.net_wm_state_add;
3494             else if (state == prop_atoms.net_wm_state_demands_attention)
3495                 action = self->demands_attention ?
3496                     prop_atoms.net_wm_state_remove :
3497                     prop_atoms.net_wm_state_add;
3498             else if (state == prop_atoms.ob_wm_state_undecorated)
3499                 action = undecorated ? prop_atoms.net_wm_state_remove :
3500                     prop_atoms.net_wm_state_add;
3501         }
3502
3503         if (action == prop_atoms.net_wm_state_add) {
3504             if (state == prop_atoms.net_wm_state_modal) {
3505                 modal = TRUE;
3506             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3507                 max_vert = TRUE;
3508             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3509                 max_horz = TRUE;
3510             } else if (state == prop_atoms.net_wm_state_shaded) {
3511                 shaded = TRUE;
3512             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3513                 self->skip_taskbar = TRUE;
3514             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3515                 self->skip_pager = TRUE;
3516             } else if (state == prop_atoms.net_wm_state_hidden) {
3517                 iconic = TRUE;
3518             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3519                 fullscreen = TRUE;
3520             } else if (state == prop_atoms.net_wm_state_above) {
3521                 above = TRUE;
3522                 below = FALSE;
3523             } else if (state == prop_atoms.net_wm_state_below) {
3524                 above = FALSE;
3525                 below = TRUE;
3526             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3527                 demands_attention = TRUE;
3528             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3529                 undecorated = TRUE;
3530             }
3531
3532         } else { /* action == prop_atoms.net_wm_state_remove */
3533             if (state == prop_atoms.net_wm_state_modal) {
3534                 modal = FALSE;
3535             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3536                 max_vert = FALSE;
3537             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3538                 max_horz = FALSE;
3539             } else if (state == prop_atoms.net_wm_state_shaded) {
3540                 shaded = FALSE;
3541             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3542                 self->skip_taskbar = FALSE;
3543             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3544                 self->skip_pager = FALSE;
3545             } else if (state == prop_atoms.net_wm_state_hidden) {
3546                 iconic = FALSE;
3547             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3548                 fullscreen = FALSE;
3549             } else if (state == prop_atoms.net_wm_state_above) {
3550                 above = FALSE;
3551             } else if (state == prop_atoms.net_wm_state_below) {
3552                 below = FALSE;
3553             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3554                 demands_attention = FALSE;
3555             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3556                 undecorated = FALSE;
3557             }
3558         }
3559     }
3560
3561     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3562         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3563             /* toggling both */
3564             if (max_horz == max_vert) { /* both going the same way */
3565                 client_maximize(self, max_horz, 0);
3566             } else {
3567                 client_maximize(self, max_horz, 1);
3568                 client_maximize(self, max_vert, 2);
3569             }
3570         } else {
3571             /* toggling one */
3572             if (max_horz != self->max_horz)
3573                 client_maximize(self, max_horz, 1);
3574             else
3575                 client_maximize(self, max_vert, 2);
3576         }
3577     }
3578     /* change fullscreen state before shading, as it will affect if the window
3579        can shade or not */
3580     if (fullscreen != self->fullscreen)
3581         client_fullscreen(self, fullscreen);
3582     if (shaded != self->shaded)
3583         client_shade(self, shaded);
3584     if (undecorated != self->undecorated)
3585         client_set_undecorated(self, undecorated);
3586     if (above != self->above || below != self->below) {
3587         self->above = above;
3588         self->below = below;
3589         client_calc_layer(self);
3590     }
3591
3592     if (modal != self->modal) {
3593         self->modal = modal;
3594         /* when a window changes modality, then its stacking order with its
3595            transients needs to change */
3596         stacking_raise(CLIENT_AS_WINDOW(self));
3597
3598         /* it also may get focused. if something is focused that shouldn't
3599            be focused anymore, then move the focus */
3600         if (focus_client && client_focus_target(focus_client) != focus_client)
3601             client_focus(focus_client);
3602     }
3603
3604     if (iconic != self->iconic)
3605         client_iconify(self, iconic, FALSE, FALSE);
3606
3607     if (demands_attention != self->demands_attention)
3608         client_hilite(self, demands_attention);
3609
3610     client_change_state(self); /* change the hint to reflect these changes */
3611 }
3612
3613 ObClient *client_focus_target(ObClient *self)
3614 {
3615     ObClient *child = NULL;
3616
3617     child = client_search_modal_child(self);
3618     if (child) return child;
3619     return self;
3620 }
3621
3622 gboolean client_can_focus(ObClient *self)
3623 {
3624     /* choose the correct target */
3625     self = client_focus_target(self);
3626
3627     if (!self->frame->visible)
3628         return FALSE;
3629
3630     if (!(self->can_focus || self->focus_notify))
3631         return FALSE;
3632
3633     return TRUE;
3634 }
3635
3636 gboolean client_focus(ObClient *self)
3637 {
3638     /* we might not focus this window, so if we have modal children which would
3639        be focused instead, bring them to this desktop */
3640     client_bring_modal_windows(self);
3641
3642     /* choose the correct target */
3643     self = client_focus_target(self);
3644
3645     if (!client_can_focus(self)) {
3646         ob_debug_type(OB_DEBUG_FOCUS,
3647                       "Client %s can't be focused\n", self->title);
3648         return FALSE;
3649     }
3650
3651     ob_debug_type(OB_DEBUG_FOCUS,
3652                   "Focusing client \"%s\" (0x%x) at time %u\n",
3653                   self->title, self->window, event_curtime);
3654
3655     /* if using focus_delay, stop the timer now so that focus doesn't
3656        go moving on us */
3657     event_halt_focus_delay();
3658
3659     /* if there is a grab going on, then we need to cancel it. if we move
3660        focus during the grab, applications will get NotifyWhileGrabbed events
3661        and ignore them !
3662
3663        actions should not rely on being able to move focus during an
3664        interactive grab.
3665     */
3666     event_cancel_all_key_grabs();
3667
3668     xerror_set_ignore(TRUE);
3669     xerror_occured = FALSE;
3670
3671     if (self->can_focus) {
3672         /* This can cause a BadMatch error with CurrentTime, or if an app
3673            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3674         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3675                        event_curtime);
3676     }
3677
3678     if (self->focus_notify) {
3679         XEvent ce;
3680         ce.xclient.type = ClientMessage;
3681         ce.xclient.message_type = prop_atoms.wm_protocols;
3682         ce.xclient.display = ob_display;
3683         ce.xclient.window = self->window;
3684         ce.xclient.format = 32;
3685         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3686         ce.xclient.data.l[1] = event_curtime;
3687         ce.xclient.data.l[2] = 0l;
3688         ce.xclient.data.l[3] = 0l;
3689         ce.xclient.data.l[4] = 0l;
3690         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3691     }
3692
3693     xerror_set_ignore(FALSE);
3694
3695     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3696     return !xerror_occured;
3697 }
3698
3699 static void client_present(ObClient *self, gboolean here, gboolean raise,
3700                            gboolean unshade)
3701 {
3702     if (client_normal(self) && screen_showing_desktop)
3703         screen_show_desktop(FALSE, self);
3704     if (self->iconic)
3705         client_iconify(self, FALSE, here, FALSE);
3706     if (self->desktop != DESKTOP_ALL &&
3707         self->desktop != screen_desktop)
3708     {
3709         if (here)
3710             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3711         else
3712             screen_set_desktop(self->desktop, FALSE);
3713     } else if (!self->frame->visible)
3714         /* if its not visible for other reasons, then don't mess
3715            with it */
3716         return;
3717     if (self->shaded && unshade)
3718         client_shade(self, FALSE);
3719     if (raise)
3720         stacking_raise(CLIENT_AS_WINDOW(self));
3721
3722     client_focus(self);
3723 }
3724
3725 void client_activate(ObClient *self, gboolean here, gboolean raise,
3726                      gboolean unshade, gboolean user)
3727 {
3728     client_present(self, here, raise, unshade);
3729 }
3730
3731 static void client_bring_windows_recursive(ObClient *self,
3732                                            guint desktop,
3733                                            gboolean helpers,
3734                                            gboolean modals,
3735                                            gboolean iconic)
3736 {
3737     GSList *it;
3738
3739     for (it = self->transients; it; it = g_slist_next(it))
3740         client_bring_windows_recursive(it->data, desktop,
3741                                        helpers, modals, iconic);
3742
3743     if (((helpers && client_helper(self)) ||
3744          (modals && self->modal)) &&
3745         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3746          (iconic && self->iconic)))
3747     {
3748         if (iconic && self->iconic)
3749             client_iconify(self, FALSE, TRUE, FALSE);
3750         else
3751             client_set_desktop(self, desktop, FALSE, FALSE);
3752     }
3753 }
3754
3755 void client_bring_helper_windows(ObClient *self)
3756 {
3757     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3758 }
3759
3760 void client_bring_modal_windows(ObClient *self)
3761 {
3762     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3763 }
3764
3765 gboolean client_focused(ObClient *self)
3766 {
3767     return self == focus_client;
3768 }
3769
3770 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3771 {
3772     guint i;
3773     gulong min_diff, min_i;
3774
3775     if (!self->nicons) {
3776         ObClientIcon *parent = NULL;
3777         GSList *it;
3778
3779         for (it = self->parents; it; it = g_slist_next(it)) {
3780             ObClient *c = it->data;
3781             if ((parent = client_icon_recursive(c, w, h)))
3782                 break;
3783         }
3784
3785         return parent;
3786     }
3787
3788     /* some kind of crappy approximation to find the icon closest in size to
3789        what we requested, but icons are generally all the same ratio as
3790        eachother so it's good enough. */
3791
3792     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3793     min_i = 0;
3794
3795     for (i = 1; i < self->nicons; ++i) {
3796         gulong diff;
3797
3798         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3799         if (diff < min_diff) {
3800             min_diff = diff;
3801             min_i = i;
3802         }
3803     }
3804     return &self->icons[min_i];
3805 }
3806
3807 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3808 {
3809     ObClientIcon *ret;
3810     static ObClientIcon deficon;
3811
3812     if (!(ret = client_icon_recursive(self, w, h))) {
3813         deficon.width = deficon.height = 48;
3814         deficon.data = ob_rr_theme->def_win_icon;
3815         ret = &deficon;
3816     }
3817     return ret;
3818 }
3819
3820 void client_set_layer(ObClient *self, gint layer)
3821 {
3822     if (layer < 0) {
3823         self->below = TRUE;
3824         self->above = FALSE;
3825     } else if (layer == 0) {
3826         self->below = self->above = FALSE;
3827     } else {
3828         self->below = FALSE;
3829         self->above = TRUE;
3830     }
3831     client_calc_layer(self);
3832     client_change_state(self); /* reflect this in the state hints */
3833 }
3834
3835 void client_set_undecorated(ObClient *self, gboolean undecorated)
3836 {
3837     if (self->undecorated != undecorated &&
3838         /* don't let it undecorate if the function is missing, but let
3839            it redecorate */
3840         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3841     {
3842         self->undecorated = undecorated;
3843         client_setup_decor_and_functions(self, TRUE);
3844         client_change_state(self); /* reflect this in the state hints */
3845     }
3846 }
3847
3848 guint client_monitor(ObClient *self)
3849 {
3850     return screen_find_monitor(&self->frame->area);
3851 }
3852
3853 ObClient *client_direct_parent(ObClient *self)
3854 {
3855     if (!self->parents) return NULL;
3856     if (self->transient_for_group) return NULL;
3857     return self->parents->data;
3858 }
3859
3860 ObClient *client_search_top_direct_parent(ObClient *self)
3861 {
3862     ObClient *p;
3863     while ((p = client_direct_parent(self))) self = p;
3864     return self;
3865 }
3866
3867 static GSList *client_search_all_top_parents_internal(ObClient *self,
3868                                                       gboolean bylayer,
3869                                                       ObStackingLayer layer)
3870 {
3871     GSList *ret;
3872     ObClient *p;
3873
3874     /* move up the direct transient chain as far as possible */
3875     while ((p = client_direct_parent(self)) &&
3876            (!bylayer || p->layer == layer))
3877         self = p;
3878
3879     if (!self->parents)
3880         ret = g_slist_prepend(NULL, self);
3881     else
3882         ret = g_slist_copy(self->parents);
3883
3884     return ret;
3885 }
3886
3887 GSList *client_search_all_top_parents(ObClient *self)
3888 {
3889     return client_search_all_top_parents_internal(self, FALSE, 0);
3890 }
3891
3892 GSList *client_search_all_top_parents_layer(ObClient *self)
3893 {
3894     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3895 }
3896
3897 ObClient *client_search_focus_parent(ObClient *self)
3898 {
3899     GSList *it;
3900
3901     for (it = self->parents; it; it = g_slist_next(it))
3902         if (client_focused(it->data)) return it->data;
3903
3904     return NULL;
3905 }
3906
3907 ObClient *client_search_parent(ObClient *self, ObClient *search)
3908 {
3909     GSList *it;
3910
3911     for (it = self->parents; it; it = g_slist_next(it))
3912         if (it->data == search) return search;
3913
3914     return NULL;
3915 }
3916
3917 ObClient *client_search_transient(ObClient *self, ObClient *search)
3918 {
3919     GSList *sit;
3920
3921     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3922         if (sit->data == search)
3923             return search;
3924         if (client_search_transient(sit->data, search))
3925             return search;
3926     }
3927     return NULL;
3928 }
3929
3930 static void detect_edge(Rect area, ObDirection dir,
3931                         gint my_head, gint my_size,
3932                         gint my_edge_start, gint my_edge_size,
3933                         gint *dest, gboolean *near_edge)
3934 {
3935     gint edge_start, edge_size, head, tail;
3936     gboolean skip_head = FALSE, skip_tail = FALSE;
3937
3938     switch (dir) {
3939         case OB_DIRECTION_NORTH:
3940         case OB_DIRECTION_SOUTH:
3941             edge_start = area.x;
3942             edge_size = area.width;
3943             break;
3944         case OB_DIRECTION_EAST:
3945         case OB_DIRECTION_WEST:
3946             edge_start = area.y;
3947             edge_size = area.height;
3948             break;
3949         default:
3950             g_assert_not_reached();
3951     }
3952
3953     /* do we collide with this window? */
3954     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
3955                 edge_start, edge_size))
3956         return;
3957
3958     switch (dir) {
3959         case OB_DIRECTION_NORTH:
3960             head = RECT_BOTTOM(area);
3961             tail = RECT_TOP(area);
3962             break;
3963         case OB_DIRECTION_SOUTH:
3964             head = RECT_TOP(area);
3965             tail = RECT_BOTTOM(area);
3966             break;
3967         case OB_DIRECTION_WEST:
3968             head = RECT_RIGHT(area);
3969             tail = RECT_LEFT(area);
3970             break;
3971         case OB_DIRECTION_EAST:
3972             head = RECT_LEFT(area);
3973             tail = RECT_RIGHT(area);
3974             break;
3975         default:
3976             g_assert_not_reached();
3977     }
3978     switch (dir) {
3979         case OB_DIRECTION_NORTH:
3980         case OB_DIRECTION_WEST:
3981             /* check if our window is past the head of this window */
3982             if (my_head <= head + 1)
3983                 skip_head = TRUE;
3984             /* check if our window's tail is past the tail of this window */
3985             if (my_head + my_size - 1 <= tail)
3986                 skip_tail = TRUE;
3987             /* check if the head of this window is closer than the previously
3988                chosen edge (take into account that the previously chosen
3989                edge might have been a tail, not a head) */
3990             if (head + (*near_edge ? 0 : my_size) < *dest)
3991                 skip_head = TRUE;
3992             /* check if the tail of this window is closer than the previously
3993                chosen edge (take into account that the previously chosen
3994                edge might have been a head, not a tail) */
3995             if (tail - (!*near_edge ? 0 : my_size) < *dest)
3996                 skip_tail = TRUE;
3997             break;
3998         case OB_DIRECTION_SOUTH:
3999         case OB_DIRECTION_EAST:
4000             /* check if our window is past the head of this window */
4001             if (my_head >= head - 1)
4002                 skip_head = TRUE;
4003             /* check if our window's tail is past the tail of this window */
4004             if (my_head - my_size + 1 >= tail)
4005                 skip_tail = TRUE;
4006             /* check if the head of this window is closer than the previously
4007                chosen edge (take into account that the previously chosen
4008                edge might have been a tail, not a head) */
4009             if (head - (*near_edge ? 0 : my_size) > *dest)
4010                 skip_head = TRUE;
4011             /* check if the tail of this window is closer than the previously
4012                chosen edge (take into account that the previously chosen
4013                edge might have been a head, not a tail) */
4014             if (tail + (!*near_edge ? 0 : my_size) > *dest)
4015                 skip_tail = TRUE;
4016             break;
4017         default:
4018             g_assert_not_reached();
4019     }
4020
4021     ob_debug("my head %d size %d\n", my_head, my_size);
4022     ob_debug("head %d tail %d deest %d\n", head, tail, *dest);
4023     if (!skip_head) {
4024         ob_debug("using near edge %d\n", head);
4025         *dest = head;
4026         *near_edge = TRUE;
4027     }
4028     else if (!skip_tail) {
4029         ob_debug("using far edge %d\n", tail);
4030         *dest = tail;
4031         *near_edge = FALSE;
4032     }
4033 }
4034
4035 void client_find_edge_directional(ObClient *self, ObDirection dir,
4036                                   gint my_head, gint my_size,
4037                                   gint my_edge_start, gint my_edge_size,
4038                                   gint *dest, gboolean *near_edge)
4039 {
4040     GList *it;
4041     Rect *a, *mon;
4042     Rect dock_area;
4043     gint edge;
4044
4045     a = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS,
4046                     &self->frame->area);
4047     mon = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR,
4048                       &self->frame->area);
4049
4050     switch (dir) {
4051     case OB_DIRECTION_NORTH:
4052         if (my_head >= RECT_TOP(*mon) + 1)
4053             edge = RECT_TOP(*mon) - 1;
4054         else
4055             edge = RECT_TOP(*a) - 1;
4056         break;
4057     case OB_DIRECTION_SOUTH:
4058         if (my_head <= RECT_BOTTOM(*mon) - 1)
4059             edge = RECT_BOTTOM(*mon) + 1;
4060         else
4061             edge = RECT_BOTTOM(*a) + 1;
4062         break;
4063     case OB_DIRECTION_EAST:
4064         if (my_head <= RECT_RIGHT(*mon) - 1)
4065             edge = RECT_RIGHT(*mon) + 1;
4066         else
4067             edge = RECT_RIGHT(*a) + 1;
4068         break;
4069     case OB_DIRECTION_WEST:
4070         if (my_head >= RECT_LEFT(*mon) + 1)
4071             edge = RECT_LEFT(*mon) - 1;
4072         else
4073             edge = RECT_LEFT(*a) - 1;
4074         break;
4075     default:
4076         g_assert_not_reached();
4077     }
4078     /* default to the far edge, then narrow it down */
4079     *dest = edge;
4080     *near_edge = TRUE;
4081
4082     for (it = client_list; it; it = g_list_next(it)) {
4083         ObClient *cur = it->data;
4084
4085         /* skip windows to not bump into */
4086         if (cur == self)
4087             continue;
4088         if (cur->iconic)
4089             continue;
4090         if (self->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&
4091             cur->desktop != screen_desktop)
4092             continue;
4093
4094         ob_debug("trying window %s\n", cur->title);
4095
4096         detect_edge(cur->frame->area, dir, my_head, my_size, my_edge_start,
4097                     my_edge_size, dest, near_edge);
4098     }
4099     dock_get_area(&dock_area);
4100     detect_edge(dock_area, dir, my_head, my_size, my_edge_start,
4101                 my_edge_size, dest, near_edge);
4102     g_free(a);
4103     g_free(mon);
4104 }
4105
4106 void client_find_move_directional(ObClient *self, ObDirection dir,
4107                                   gint *x, gint *y)
4108 {
4109     gint head, size;
4110     gint e, e_start, e_size;
4111     gboolean near;
4112
4113     switch (dir) {
4114     case OB_DIRECTION_EAST:
4115         head = RECT_RIGHT(self->frame->area);
4116         size = self->frame->area.width;
4117         e_start = RECT_TOP(self->frame->area);
4118         e_size = self->frame->area.height;
4119         break;
4120     case OB_DIRECTION_WEST:
4121         head = RECT_LEFT(self->frame->area);
4122         size = self->frame->area.width;
4123         e_start = RECT_TOP(self->frame->area);
4124         e_size = self->frame->area.height;
4125         break;
4126     case OB_DIRECTION_NORTH:
4127         head = RECT_TOP(self->frame->area);
4128         size = self->frame->area.height;
4129         e_start = RECT_LEFT(self->frame->area);
4130         e_size = self->frame->area.width;
4131         break;
4132     case OB_DIRECTION_SOUTH:
4133         head = RECT_BOTTOM(self->frame->area);
4134         size = self->frame->area.height;
4135         e_start = RECT_LEFT(self->frame->area);
4136         e_size = self->frame->area.width;
4137         break;
4138     default:
4139         g_assert_not_reached();
4140     }
4141
4142     client_find_edge_directional(self, dir, head, size,
4143                                  e_start, e_size, &e, &near);
4144     *x = self->frame->area.x;
4145     *y = self->frame->area.y;
4146     switch (dir) {
4147     case OB_DIRECTION_EAST:
4148         if (near) e -= self->frame->area.width;
4149         else      e++;
4150         *x = e;
4151         break;
4152     case OB_DIRECTION_WEST:
4153         if (near) e++;
4154         else      e -= self->frame->area.width;
4155         *x = e;
4156         break;
4157     case OB_DIRECTION_NORTH:
4158         if (near) e++;
4159         else      e -= self->frame->area.height;
4160         *y = e;
4161         break;
4162     case OB_DIRECTION_SOUTH:
4163         if (near) e -= self->frame->area.height;
4164         else      e++;
4165         *y = e;
4166         break;
4167     default:
4168         g_assert_not_reached();
4169     }
4170     frame_frame_gravity(self->frame, x, y);
4171 }
4172
4173 void client_find_resize_directional(ObClient *self, ObDirection side,
4174                                     gboolean grow,
4175                                     gint *x, gint *y, gint *w, gint *h)
4176 {
4177     gint head;
4178     gint e, e_start, e_size, delta;
4179     gboolean near;
4180     ObDirection dir;
4181
4182     switch (side) {
4183     case OB_DIRECTION_EAST:
4184         head = RECT_RIGHT(self->frame->area) +
4185             (self->size_inc.width - 1) * (grow ? 1 : -1);
4186         e_start = RECT_TOP(self->frame->area);
4187         e_size = self->frame->area.height;
4188         dir = grow ? OB_DIRECTION_EAST : OB_DIRECTION_WEST;
4189         break;
4190     case OB_DIRECTION_WEST:
4191         head = RECT_LEFT(self->frame->area) -
4192             (self->size_inc.width - 1) * (grow ? 1 : -1);
4193         e_start = RECT_TOP(self->frame->area);
4194         e_size = self->frame->area.height;
4195         dir = grow ? OB_DIRECTION_WEST : OB_DIRECTION_EAST;
4196         break;
4197     case OB_DIRECTION_NORTH:
4198         head = RECT_TOP(self->frame->area) -
4199             (self->size_inc.height - 1) * (grow ? 1 : -1);
4200         e_start = RECT_LEFT(self->frame->area);
4201         e_size = self->frame->area.width;
4202         dir = grow ? OB_DIRECTION_NORTH : OB_DIRECTION_SOUTH;
4203         break;
4204     case OB_DIRECTION_SOUTH:
4205         head = RECT_BOTTOM(self->frame->area) +
4206             (self->size_inc.height - 1) * (grow ? 1 : -1);
4207         e_start = RECT_LEFT(self->frame->area);
4208         e_size = self->frame->area.width;
4209         dir = grow ? OB_DIRECTION_SOUTH : OB_DIRECTION_NORTH;
4210         break;
4211     default:
4212         g_assert_not_reached();
4213     }
4214
4215     ob_debug("head %d dir %d\n", head, dir);
4216     client_find_edge_directional(self, dir, head, 1,
4217                                  e_start, e_size, &e, &near);
4218     ob_debug("edge %d\n", e);
4219     *x = self->frame->area.x;
4220     *y = self->frame->area.y;
4221     *w = self->frame->area.width;
4222     *h = self->frame->area.height;
4223     switch (side) {
4224     case OB_DIRECTION_EAST:
4225         if (grow == near) --e;
4226         delta = e - RECT_RIGHT(self->frame->area);
4227         *w += delta;
4228         break;
4229     case OB_DIRECTION_WEST:
4230         if (grow == near) ++e;
4231         delta = RECT_LEFT(self->frame->area) - e;
4232         *x -= delta;
4233         *w += delta;
4234         break;
4235     case OB_DIRECTION_NORTH:
4236         if (grow == near) ++e;
4237         delta = RECT_TOP(self->frame->area) - e;
4238         *y -= delta;
4239         *h += delta;
4240         break;
4241     case OB_DIRECTION_SOUTH:
4242         if (grow == near) --e;
4243         delta = e - RECT_BOTTOM(self->frame->area);
4244         *h += delta;
4245         break;
4246     default:
4247         g_assert_not_reached();
4248     }
4249     frame_frame_gravity(self->frame, x, y);
4250     *w -= self->frame->size.left + self->frame->size.right;
4251     *h -= self->frame->size.top + self->frame->size.bottom;
4252 }
4253
4254 ObClient* client_under_pointer(void)
4255 {
4256     gint x, y;
4257     GList *it;
4258     ObClient *ret = NULL;
4259
4260     if (screen_pointer_pos(&x, &y)) {
4261         for (it = stacking_list; it; it = g_list_next(it)) {
4262             if (WINDOW_IS_CLIENT(it->data)) {
4263                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4264                 if (c->frame->visible &&
4265                     /* check the desktop, this is done during desktop
4266                        switching and windows are shown/hidden status is not
4267                        reliable */
4268                     (c->desktop == screen_desktop ||
4269                      c->desktop == DESKTOP_ALL) &&
4270                     /* ignore all animating windows */
4271                     !frame_iconify_animating(c->frame) &&
4272                     RECT_CONTAINS(c->frame->area, x, y))
4273                 {
4274                     ret = c;
4275                     break;
4276                 }
4277             }
4278         }
4279     }
4280     return ret;
4281 }
4282
4283 gboolean client_has_group_siblings(ObClient *self)
4284 {
4285     return self->group && self->group->members->next;
4286 }