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