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 /* Avoid storing icons above this size if possible */
2071 #define AVOID_ABOVE 64
2072
2073 void client_update_icons(ObClient *self)
2074 {
2075     guint num;
2076     guint32 *data;
2077     guint w, h, i, j;
2078     guint num_seen;  /* number of icons present */
2079     guint num_small_seen;  /* number of icons small enough present */
2080     guint smallest, smallest_area;
2081
2082     for (i = 0; i < self->nicons; ++i)
2083         g_free(self->icons[i].data);
2084     if (self->nicons > 0)
2085         g_free(self->icons);
2086     self->nicons = 0;
2087
2088     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2089         /* figure out how many valid icons are in here */
2090         i = 0;
2091         num_seen = num_small_seen = 0;
2092         smallest = smallest_area = 0;
2093         if (num > 2)
2094             while (i < num) {
2095                 w = data[i++];
2096                 h = data[i++];
2097                 i += w * h;
2098                 /* watch for it being too small for the specified size, or for
2099                    zero sized icons. */
2100                 if (i > num || w == 0 || h == 0) break;
2101
2102                 if (!smallest_area || w*h < smallest_area) {
2103                     smallest = num_seen;
2104                     smallest_area = w*h;
2105                 }
2106                 ++num_seen;
2107                 if (w <= AVOID_ABOVE && h <= AVOID_ABOVE)
2108                     ++num_small_seen;
2109             }
2110         if (num_small_seen > 0)
2111             self->nicons = num_small_seen;
2112         else if (num_seen)
2113             self->nicons = 1;
2114
2115         self->icons = g_new(ObClientIcon, self->nicons);
2116
2117         /* store the icons */
2118         i = 0;
2119         for (j = 0; j < self->nicons;) {
2120             guint x, y, t;
2121
2122             w = self->icons[j].width = data[i++];
2123             h = self->icons[j].height = data[i++];
2124
2125             /* if there are some icons smaller than the threshold, we're
2126                skipping all the ones above */
2127             if (num_small_seen > 0) {
2128                 if (w > AVOID_ABOVE || h > AVOID_ABOVE) {
2129                     i += w*h;
2130                     continue;
2131                 }
2132             }
2133             /* if there were no icons smaller than the threshold, then we are
2134                only taking the smallest available one we saw */
2135             else if (j != smallest) {
2136                 i += w*h;
2137                 continue;
2138             }
2139
2140             self->icons[j].data = g_new(RrPixel32, w * h);
2141             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
2142                 if (x >= w) {
2143                     x = 0;
2144                     ++y;
2145                 }
2146                 self->icons[j].data[t] =
2147                     (((data[i] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2148                     (((data[i] >> 16) & 0xff) << RrDefaultRedOffset) +
2149                     (((data[i] >> 8) & 0xff) << RrDefaultGreenOffset) +
2150                     (((data[i] >> 0) & 0xff) << RrDefaultBlueOffset);
2151             }
2152             g_assert(i <= num);
2153
2154             ++j;
2155         }
2156
2157         g_free(data);
2158     } else {
2159         XWMHints *hints;
2160
2161         if ((hints = XGetWMHints(ob_display, self->window))) {
2162             if (hints->flags & IconPixmapHint) {
2163                 self->nicons = 1;
2164                 self->icons = g_new(ObClientIcon, self->nicons);
2165                 xerror_set_ignore(TRUE);
2166                 if (!RrPixmapToRGBA(ob_rr_inst,
2167                                     hints->icon_pixmap,
2168                                     (hints->flags & IconMaskHint ?
2169                                      hints->icon_mask : None),
2170                                     &self->icons[0].width,
2171                                     &self->icons[0].height,
2172                                     &self->icons[0].data))
2173                 {
2174                     g_free(self->icons);
2175                     self->nicons = 0;
2176                 }
2177                 xerror_set_ignore(FALSE);
2178             }
2179             XFree(hints);
2180         }
2181     }
2182
2183     /* set the default icon onto the window
2184        in theory, this could be a race, but if a window doesn't set an icon
2185        or removes it entirely, it's not very likely it is going to set one
2186        right away afterwards
2187
2188        if it has parents, then one of them will have an icon already
2189     */
2190     if (self->nicons == 0 && !self->parents) {
2191         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2192         gulong *data;
2193
2194         data = g_new(gulong, 48*48+2);
2195         data[0] = data[1] =  48;
2196         for (i = 0; i < 48*48; ++i)
2197             data[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2198                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2199                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2200                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2201         PROP_SETA32(self->window, net_wm_icon, cardinal, data, 48*48+2);
2202         g_free(data);
2203     } else if (self->frame)
2204         /* don't draw the icon empty if we're just setting one now anyways,
2205            we'll get the property change any second */
2206         frame_adjust_icon(self->frame);
2207 }
2208
2209 void client_update_icon_geometry(ObClient *self)
2210 {
2211     guint num;
2212     guint32 *data;
2213
2214     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2215
2216     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num))
2217     {
2218         if (num == 4)
2219             /* don't let them set it with an area < 0 */
2220             RECT_SET(self->icon_geometry, data[0], data[1],
2221                      MAX(data[2],0), MAX(data[3],0));
2222         g_free(data);
2223     }
2224 }
2225
2226 static void client_get_session_ids(ObClient *self)
2227 {
2228     guint32 leader;
2229     gboolean got;
2230     gchar *s;
2231     gchar **ss;
2232
2233     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2234         leader = None;
2235
2236     /* get the SM_CLIENT_ID */
2237     got = FALSE;
2238     if (leader)
2239         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2240     if (!got)
2241         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2242
2243     /* get the WM_CLASS (name and class). make them "" if they are not
2244        provided */
2245     got = FALSE;
2246     if (leader)
2247         got = PROP_GETSS(leader, wm_class, locale, &ss);
2248     if (!got)
2249         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2250
2251     if (got) {
2252         if (ss[0]) {
2253             self->name = g_strdup(ss[0]);
2254             if (ss[1])
2255                 self->class = g_strdup(ss[1]);
2256         }
2257         g_strfreev(ss);
2258     }
2259
2260     if (self->name == NULL) self->name = g_strdup("");
2261     if (self->class == NULL) self->class = g_strdup("");
2262
2263     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2264     got = FALSE;
2265     if (leader)
2266         got = PROP_GETS(leader, wm_window_role, locale, &s);
2267     if (!got)
2268         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2269
2270     if (got)
2271         self->role = s;
2272     else
2273         self->role = g_strdup("");
2274
2275     /* get the WM_COMMAND */
2276     got = FALSE;
2277
2278     if (leader)
2279         got = PROP_GETSS(leader, wm_command, locale, &ss);
2280     if (!got)
2281         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2282
2283     if (got) {
2284         /* merge/mash them all together */
2285         gchar *merge = NULL;
2286         gint i;
2287
2288         for (i = 0; ss[i]; ++i) {
2289             gchar *tmp = merge;
2290             if (merge)
2291                 merge = g_strconcat(merge, ss[i], NULL);
2292             else
2293                 merge = g_strconcat(ss[i], NULL);
2294             g_free(tmp);
2295         }
2296         g_strfreev(ss);
2297
2298         self->wm_command = merge;
2299     }
2300
2301     /* get the WM_CLIENT_MACHINE */
2302     got = FALSE;
2303     if (leader)
2304         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2305     if (!got)
2306         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2307
2308     if (got) {
2309         gchar localhost[128];
2310         guint32 pid;
2311
2312         gethostname(localhost, 127);
2313         localhost[127] = '\0';
2314         if (strcmp(localhost, s) != 0)
2315             self->client_machine = s;
2316         else
2317             g_free(s);
2318
2319         /* see if it has the PID set too (the PID requires that the
2320            WM_CLIENT_MACHINE be set) */
2321         if (PROP_GET32(self->window, net_wm_pid, cardinal, &pid))
2322             self->pid = pid;
2323     }
2324 }
2325
2326 static void client_change_wm_state(ObClient *self)
2327 {
2328     gulong state[2];
2329     glong old;
2330
2331     old = self->wmstate;
2332
2333     if (self->shaded || self->iconic ||
2334         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2335     {
2336         self->wmstate = IconicState;
2337     } else
2338         self->wmstate = NormalState;
2339
2340     if (old != self->wmstate) {
2341         PROP_MSG(self->window, kde_wm_change_state,
2342                  self->wmstate, 1, 0, 0);
2343
2344         state[0] = self->wmstate;
2345         state[1] = None;
2346         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2347     }
2348 }
2349
2350 static void client_change_state(ObClient *self)
2351 {
2352     gulong netstate[12];
2353     guint num;
2354
2355     num = 0;
2356     if (self->modal)
2357         netstate[num++] = prop_atoms.net_wm_state_modal;
2358     if (self->shaded)
2359         netstate[num++] = prop_atoms.net_wm_state_shaded;
2360     if (self->iconic)
2361         netstate[num++] = prop_atoms.net_wm_state_hidden;
2362     if (self->skip_taskbar)
2363         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2364     if (self->skip_pager)
2365         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2366     if (self->fullscreen)
2367         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2368     if (self->max_vert)
2369         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2370     if (self->max_horz)
2371         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2372     if (self->above)
2373         netstate[num++] = prop_atoms.net_wm_state_above;
2374     if (self->below)
2375         netstate[num++] = prop_atoms.net_wm_state_below;
2376     if (self->demands_attention)
2377         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2378     if (self->undecorated)
2379         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2380     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2381
2382     if (self->frame)
2383         frame_adjust_state(self->frame);
2384 }
2385
2386 ObClient *client_search_focus_tree(ObClient *self)
2387 {
2388     GSList *it;
2389     ObClient *ret;
2390
2391     for (it = self->transients; it; it = g_slist_next(it)) {
2392         if (client_focused(it->data)) return it->data;
2393         if ((ret = client_search_focus_tree(it->data))) return ret;
2394     }
2395     return NULL;
2396 }
2397
2398 ObClient *client_search_focus_tree_full(ObClient *self)
2399 {
2400     if (self->parents) {
2401         GSList *it;
2402
2403         for (it = self->parents; it; it = g_slist_next(it)) {
2404             ObClient *c = it->data;
2405             if ((c = client_search_focus_tree_full(it->data))) return c;
2406         }
2407
2408         return NULL;
2409     }
2410     else {
2411         /* this function checks the whole tree, the client_search_focus_tree
2412            does not, so we need to check this window */
2413         if (client_focused(self))
2414             return self;
2415         return client_search_focus_tree(self);
2416     }
2417 }
2418
2419 ObClient *client_search_focus_group_full(ObClient *self)
2420 {
2421     GSList *it;
2422
2423     if (self->group) {
2424         for (it = self->group->members; it; it = g_slist_next(it)) {
2425             ObClient *c = it->data;
2426
2427             if (client_focused(c)) return c;
2428             if ((c = client_search_focus_tree(it->data))) return c;
2429         }
2430     } else
2431         if (client_focused(self)) return self;
2432     return NULL;
2433 }
2434
2435 gboolean client_has_parent(ObClient *self)
2436 {
2437     return self->parents != NULL;
2438 }
2439
2440 static ObStackingLayer calc_layer(ObClient *self)
2441 {
2442     ObStackingLayer l;
2443     Rect *monitor;
2444
2445     monitor = screen_physical_area_monitor(client_monitor(self));
2446
2447     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2448         l = OB_STACKING_LAYER_DESKTOP;
2449     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2450         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2451         else l = OB_STACKING_LAYER_ABOVE;
2452     }
2453     else if ((self->fullscreen ||
2454               /* No decorations and fills the monitor = oldskool fullscreen.
2455                  But not for maximized windows.
2456               */
2457               (self->decorations == 0 &&
2458                !(self->max_horz && self->max_vert) &&
2459                RECT_EQUAL(self->area, *monitor))) &&
2460              (client_focused(self) || client_search_focus_tree(self)))
2461         l = OB_STACKING_LAYER_FULLSCREEN;
2462     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2463     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2464     else l = OB_STACKING_LAYER_NORMAL;
2465
2466     g_free(monitor);
2467
2468     return l;
2469 }
2470
2471 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2472                                         ObStackingLayer min)
2473 {
2474     ObStackingLayer old, own;
2475     GSList *it;
2476
2477     old = self->layer;
2478     own = calc_layer(self);
2479     self->layer = MAX(own, min);
2480
2481     if (self->layer != old) {
2482         stacking_remove(CLIENT_AS_WINDOW(self));
2483         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2484     }
2485
2486     for (it = self->transients; it; it = g_slist_next(it))
2487         client_calc_layer_recursive(it->data, orig,
2488                                     self->layer);
2489 }
2490
2491 void client_calc_layer(ObClient *self)
2492 {
2493     ObClient *orig;
2494     GSList *it;
2495
2496     orig = self;
2497
2498     /* transients take on the layer of their parents */
2499     it = client_search_all_top_parents(self);
2500
2501     for (; it; it = g_slist_next(it))
2502         client_calc_layer_recursive(it->data, orig, 0);
2503 }
2504
2505 gboolean client_should_show(ObClient *self)
2506 {
2507     if (self->iconic)
2508         return FALSE;
2509     if (client_normal(self) && screen_showing_desktop)
2510         return FALSE;
2511     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2512         return TRUE;
2513
2514     return FALSE;
2515 }
2516
2517 gboolean client_show(ObClient *self)
2518 {
2519     gboolean show = FALSE;
2520
2521     if (client_should_show(self)) {
2522         frame_show(self->frame);
2523         show = TRUE;
2524
2525         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2526            it needs to be in IconicState. This includes when it is on another
2527            desktop!
2528         */
2529         client_change_wm_state(self);
2530     }
2531     return show;
2532 }
2533
2534 gboolean client_hide(ObClient *self)
2535 {
2536     gboolean hide = FALSE;
2537
2538     if (!client_should_show(self)) {
2539         if (self == focus_client) {
2540             /* if there is a grab going on, then we need to cancel it. if we
2541                move focus during the grab, applications will get
2542                NotifyWhileGrabbed events and ignore them !
2543
2544                actions should not rely on being able to move focus during an
2545                interactive grab.
2546             */
2547             event_cancel_all_key_grabs();
2548         }
2549
2550         /* We don't need to ignore enter events here.
2551            The window can hide/iconify in 3 different ways:
2552            1 - through an x message. in this case we ignore all enter events
2553                caused by responding to the x message (unless underMouse)
2554            2 - by a keyboard action. in this case we ignore all enter events
2555                caused by the action
2556            3 - by a mouse action. in this case they are doing stuff with the
2557                mouse and focus _should_ move.
2558
2559            Also in action_end, we simulate an enter event that can't be ignored
2560            so trying to ignore them is futile in case 3 anyways
2561         */
2562
2563         frame_hide(self->frame);
2564         hide = TRUE;
2565
2566         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2567            it needs to be in IconicState. This includes when it is on another
2568            desktop!
2569         */
2570         client_change_wm_state(self);
2571     }
2572     return hide;
2573 }
2574
2575 void client_showhide(ObClient *self)
2576 {
2577     if (!client_show(self))
2578         client_hide(self);
2579 }
2580
2581 gboolean client_normal(ObClient *self) {
2582     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2583               self->type == OB_CLIENT_TYPE_DOCK ||
2584               self->type == OB_CLIENT_TYPE_SPLASH);
2585 }
2586
2587 gboolean client_helper(ObClient *self)
2588 {
2589     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2590             self->type == OB_CLIENT_TYPE_MENU ||
2591             self->type == OB_CLIENT_TYPE_TOOLBAR);
2592 }
2593
2594 gboolean client_mouse_focusable(ObClient *self)
2595 {
2596     return !(self->type == OB_CLIENT_TYPE_MENU ||
2597              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2598              self->type == OB_CLIENT_TYPE_SPLASH ||
2599              self->type == OB_CLIENT_TYPE_DOCK);
2600 }
2601
2602 gboolean client_enter_focusable(ObClient *self)
2603 {
2604     /* you can focus desktops but it shouldn't on enter */
2605     return (client_mouse_focusable(self) &&
2606             self->type != OB_CLIENT_TYPE_DESKTOP);
2607 }
2608
2609
2610 static void client_apply_startup_state(ObClient *self,
2611                                        gint x, gint y, gint w, gint h)
2612 {
2613     /* save the states that we are going to apply */
2614     gboolean iconic = self->iconic;
2615     gboolean fullscreen = self->fullscreen;
2616     gboolean undecorated = self->undecorated;
2617     gboolean shaded = self->shaded;
2618     gboolean demands_attention = self->demands_attention;
2619     gboolean max_horz = self->max_horz;
2620     gboolean max_vert = self->max_vert;
2621     Rect oldarea;
2622     gint l;
2623
2624     /* turn them all off in the client, so they won't affect the window
2625        being placed */
2626     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2627         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2628
2629     /* move the client to its placed position, or it it's already there,
2630        generate a ConfigureNotify telling the client where it is.
2631
2632        do this after adjusting the frame. otherwise it gets all weird and
2633        clients don't work right
2634
2635        do this before applying the states so they have the correct
2636        pre-max/pre-fullscreen values
2637     */
2638     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2639     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2640              self->window, x, y, w, h);
2641     /* save the area, and make it where it should be for the premax stuff */
2642     oldarea = self->area;
2643     RECT_SET(self->area, x, y, w, h);
2644
2645     /* apply the states. these are in a carefully crafted order.. */
2646
2647     if (iconic)
2648         client_iconify(self, TRUE, FALSE, TRUE);
2649     if (fullscreen)
2650         client_fullscreen(self, TRUE);
2651     if (undecorated)
2652         client_set_undecorated(self, TRUE);
2653     if (shaded)
2654         client_shade(self, TRUE);
2655     if (demands_attention)
2656         client_hilite(self, TRUE);
2657
2658     if (max_vert && max_horz)
2659         client_maximize(self, TRUE, 0);
2660     else if (max_vert)
2661         client_maximize(self, TRUE, 2);
2662     else if (max_horz)
2663         client_maximize(self, TRUE, 1);
2664
2665     /* if the window hasn't been configured yet, then do so now, in fact the
2666        x,y,w,h may _not_ be the same as the area rect, which can end up
2667        meaning that the client isn't properly moved/resized by the fullscreen
2668        function
2669        pho can cause this because it maps at size of the screen but not 0,0
2670        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2671        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2672        cuz thats where the pre-fullscreen will be. however the actual area is
2673        not, so this needs to be called even if we have fullscreened/maxed
2674     */
2675     self->area = oldarea;
2676     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2677
2678     /* set the desktop hint, to make sure that it always exists */
2679     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2680
2681     /* nothing to do for the other states:
2682        skip_taskbar
2683        skip_pager
2684        modal
2685        above
2686        below
2687     */
2688 }
2689
2690 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2691 {
2692     /* these should be the current values. this is for when you're not moving,
2693        just resizing */
2694     g_assert(*x == self->area.x);
2695     g_assert(oldw == self->area.width);
2696
2697     /* horizontal */
2698     switch (self->gravity) {
2699     default:
2700     case NorthWestGravity:
2701     case WestGravity:
2702     case SouthWestGravity:
2703     case StaticGravity:
2704     case ForgetGravity:
2705         break;
2706     case NorthGravity:
2707     case CenterGravity:
2708     case SouthGravity:
2709         *x -= (neww - oldw) / 2;
2710         break;
2711     case NorthEastGravity:
2712     case EastGravity:
2713     case SouthEastGravity:
2714         *x -= neww - oldw;
2715         break;
2716     }
2717 }
2718
2719 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2720 {
2721     /* these should be the current values. this is for when you're not moving,
2722        just resizing */
2723     g_assert(*y == self->area.y);
2724     g_assert(oldh == self->area.height);
2725
2726     /* vertical */
2727     switch (self->gravity) {
2728     default:
2729     case NorthWestGravity:
2730     case NorthGravity:
2731     case NorthEastGravity:
2732     case StaticGravity:
2733     case ForgetGravity:
2734         break;
2735     case WestGravity:
2736     case CenterGravity:
2737     case EastGravity:
2738         *y -= (newh - oldh) / 2;
2739         break;
2740     case SouthWestGravity:
2741     case SouthGravity:
2742     case SouthEastGravity:
2743         *y -= newh - oldh;
2744         break;
2745     }
2746 }
2747
2748 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2749                           gint *logicalw, gint *logicalh,
2750                           gboolean user)
2751 {
2752     Rect desired = {*x, *y, *w, *h};
2753     frame_rect_to_frame(self->frame, &desired);
2754
2755     /* make the frame recalculate its dimentions n shit without changing
2756        anything visible for real, this way the constraints below can work with
2757        the updated frame dimensions. */
2758     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2759
2760     /* gets the frame's position */
2761     frame_client_gravity(self->frame, x, y);
2762
2763     /* these positions are frame positions, not client positions */
2764
2765     /* set the size and position if fullscreen */
2766     if (self->fullscreen) {
2767         Rect *a;
2768         guint i;
2769
2770         i = screen_find_monitor(&desired);
2771         a = screen_physical_area_monitor(i);
2772
2773         *x = a->x;
2774         *y = a->y;
2775         *w = a->width;
2776         *h = a->height;
2777
2778         user = FALSE; /* ignore if the client can't be moved/resized when it
2779                          is fullscreening */
2780
2781         g_free(a);
2782     } else if (self->max_horz || self->max_vert) {
2783         Rect *a;
2784         guint i;
2785
2786         /* use all possible struts when maximizing to the full screen */
2787         i = screen_find_monitor(&desired);
2788         a = screen_area(self->desktop, i,
2789                         (self->max_horz && self->max_vert ? NULL : &desired));
2790
2791         /* set the size and position if maximized */
2792         if (self->max_horz) {
2793             *x = a->x;
2794             *w = a->width - self->frame->size.left - self->frame->size.right;
2795         }
2796         if (self->max_vert) {
2797             *y = a->y;
2798             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2799         }
2800
2801         user = FALSE; /* ignore if the client can't be moved/resized when it
2802                          is maximizing */
2803
2804         g_free(a);
2805     }
2806
2807     /* gets the client's position */
2808     frame_frame_gravity(self->frame, x, y);
2809
2810     /* work within the prefered sizes given by the window */
2811     if (!(*w == self->area.width && *h == self->area.height)) {
2812         gint basew, baseh, minw, minh;
2813         gint incw, inch;
2814         gfloat minratio, maxratio;
2815
2816         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2817         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2818         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2819             0 : self->min_ratio;
2820         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2821             0 : self->max_ratio;
2822
2823         /* base size is substituted with min size if not specified */
2824         if (self->base_size.width || self->base_size.height) {
2825             basew = self->base_size.width;
2826             baseh = self->base_size.height;
2827         } else {
2828             basew = self->min_size.width;
2829             baseh = self->min_size.height;
2830         }
2831         /* min size is substituted with base size if not specified */
2832         if (self->min_size.width || self->min_size.height) {
2833             minw = self->min_size.width;
2834             minh = self->min_size.height;
2835         } else {
2836             minw = self->base_size.width;
2837             minh = self->base_size.height;
2838         }
2839
2840         /* if this is a user-requested resize, then check against min/max
2841            sizes */
2842
2843         /* smaller than min size or bigger than max size? */
2844         if (*w > self->max_size.width) *w = self->max_size.width;
2845         if (*w < minw) *w = minw;
2846         if (*h > self->max_size.height) *h = self->max_size.height;
2847         if (*h < minh) *h = minh;
2848
2849         *w -= basew;
2850         *h -= baseh;
2851
2852         /* keep to the increments */
2853         *w /= incw;
2854         *h /= inch;
2855
2856         /* you cannot resize to nothing */
2857         if (basew + *w < 1) *w = 1 - basew;
2858         if (baseh + *h < 1) *h = 1 - baseh;
2859
2860         /* save the logical size */
2861         *logicalw = incw > 1 ? *w : *w + basew;
2862         *logicalh = inch > 1 ? *h : *h + baseh;
2863
2864         *w *= incw;
2865         *h *= inch;
2866
2867         *w += basew;
2868         *h += baseh;
2869
2870         /* adjust the height to match the width for the aspect ratios.
2871            for this, min size is not substituted for base size ever. */
2872         *w -= self->base_size.width;
2873         *h -= self->base_size.height;
2874
2875         if (minratio)
2876             if (*h * minratio > *w) {
2877                 *h = (gint)(*w / minratio);
2878
2879                 /* you cannot resize to nothing */
2880                 if (*h < 1) {
2881                     *h = 1;
2882                     *w = (gint)(*h * minratio);
2883                 }
2884             }
2885         if (maxratio)
2886             if (*h * maxratio < *w) {
2887                 *h = (gint)(*w / maxratio);
2888
2889                 /* you cannot resize to nothing */
2890                 if (*h < 1) {
2891                     *h = 1;
2892                     *w = (gint)(*h * minratio);
2893                 }
2894             }
2895
2896         *w += self->base_size.width;
2897         *h += self->base_size.height;
2898     }
2899
2900     /* these override the above states! if you cant move you can't move! */
2901     if (user) {
2902         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2903             *x = self->area.x;
2904             *y = self->area.y;
2905         }
2906         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2907             *w = self->area.width;
2908             *h = self->area.height;
2909         }
2910     }
2911
2912     g_assert(*w > 0);
2913     g_assert(*h > 0);
2914 }
2915
2916
2917 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
2918                       gboolean user, gboolean final, gboolean force_reply)
2919 {
2920     gint oldw, oldh;
2921     gboolean send_resize_client;
2922     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
2923     gboolean fmoved, fresized;
2924     guint fdecor = self->frame->decorations;
2925     gboolean fhorz = self->frame->max_horz;
2926     gboolean fvert = self->frame->max_vert;
2927     gint logicalw, logicalh;
2928
2929     /* find the new x, y, width, and height (and logical size) */
2930     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
2931
2932     /* set the logical size if things changed */
2933     if (!(w == self->area.width && h == self->area.height))
2934         SIZE_SET(self->logical_size, logicalw, logicalh);
2935
2936     /* figure out if we moved or resized or what */
2937     moved = (x != self->area.x || y != self->area.y);
2938     resized = (w != self->area.width || h != self->area.height);
2939
2940     oldw = self->area.width;
2941     oldh = self->area.height;
2942     RECT_SET(self->area, x, y, w, h);
2943
2944     /* for app-requested resizes, always resize if 'resized' is true.
2945        for user-requested ones, only resize if final is true, or when
2946        resizing in redraw mode */
2947     send_resize_client = ((!user && resized) ||
2948                           (user && (final ||
2949                                     (resized && config_resize_redraw))));
2950
2951     /* if the client is enlarging, then resize the client before the frame */
2952     if (send_resize_client && (w > oldw || h > oldh)) {
2953         XMoveResizeWindow(ob_display, self->window,
2954                           self->frame->size.left, self->frame->size.top,
2955                           MAX(w, oldw), MAX(h, oldh));
2956         frame_adjust_client_area(self->frame);
2957     }
2958
2959     /* find the frame's dimensions and move/resize it */
2960     fmoved = moved;
2961     fresized = resized;
2962
2963     /* if decorations changed, then readjust everything for the frame */
2964     if (self->decorations != fdecor ||
2965         self->max_horz != fhorz || self->max_vert != fvert)
2966     {
2967         fmoved = fresized = TRUE;
2968     }
2969
2970     /* adjust the frame */
2971     if (fmoved || fresized) {
2972         gulong ignore_start;
2973         if (!user)
2974             ignore_start = event_start_ignore_all_enters();
2975
2976         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
2977
2978         if (!user)
2979             event_end_ignore_all_enters(ignore_start);
2980     }
2981
2982     if (!user || final) {
2983         gint oldrx = self->root_pos.x;
2984         gint oldry = self->root_pos.y;
2985         /* we have reset the client to 0 border width, so don't include
2986            it in these coords */
2987         POINT_SET(self->root_pos,
2988                   self->frame->area.x + self->frame->size.left -
2989                   self->border_width,
2990                   self->frame->area.y + self->frame->size.top -
2991                   self->border_width);
2992         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
2993             rootmoved = TRUE;
2994     }
2995
2996     /* This is kinda tricky and should not be changed.. let me explain!
2997
2998        When user = FALSE, then the request is coming from the application
2999        itself, and we are more strict about when to send a synthetic
3000        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3001        in this case (if force_reply is true)
3002
3003        When user = TRUE, then the request is coming from "us", like when we
3004        maximize a window or something.  In this case we are more lenient.  We
3005        used to follow the same rules as above, but _Java_ Swing can't handle
3006        this. So just to appease Swing, when user = TRUE, we always send
3007        a synthetic ConfigureNotify to give the window its root coordinates.
3008     */
3009     if ((!user && !resized && (rootmoved || force_reply)) ||
3010         (user && final && rootmoved))
3011     {
3012         XEvent event;
3013
3014         event.type = ConfigureNotify;
3015         event.xconfigure.display = ob_display;
3016         event.xconfigure.event = self->window;
3017         event.xconfigure.window = self->window;
3018
3019         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
3020                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3021
3022         /* root window real coords */
3023         event.xconfigure.x = self->root_pos.x;
3024         event.xconfigure.y = self->root_pos.y;
3025         event.xconfigure.width = w;
3026         event.xconfigure.height = h;
3027         event.xconfigure.border_width = self->border_width;
3028         event.xconfigure.above = None;
3029         event.xconfigure.override_redirect = FALSE;
3030         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3031                    FALSE, StructureNotifyMask, &event);
3032     }
3033
3034     /* if the client is shrinking, then resize the frame before the client.
3035
3036        both of these resize sections may run, because the top one only resizes
3037        in the direction that is growing
3038      */
3039     if (send_resize_client && (w <= oldw || h <= oldh)) {
3040         frame_adjust_client_area(self->frame);
3041         XMoveResizeWindow(ob_display, self->window,
3042                           self->frame->size.left, self->frame->size.top, w, h);
3043     }
3044
3045     XFlush(ob_display);
3046 }
3047
3048 void client_fullscreen(ObClient *self, gboolean fs)
3049 {
3050     gint x, y, w, h;
3051
3052     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3053         self->fullscreen == fs) return;                   /* already done */
3054
3055     self->fullscreen = fs;
3056     client_change_state(self); /* change the state hints on the client */
3057
3058     if (fs) {
3059         self->pre_fullscreen_area = self->area;
3060         /* if the window is maximized, its area isn't all that meaningful.
3061            save it's premax area instead. */
3062         if (self->max_horz) {
3063             self->pre_fullscreen_area.x = self->pre_max_area.x;
3064             self->pre_fullscreen_area.width = self->pre_max_area.width;
3065         }
3066         if (self->max_vert) {
3067             self->pre_fullscreen_area.y = self->pre_max_area.y;
3068             self->pre_fullscreen_area.height = self->pre_max_area.height;
3069         }
3070
3071         /* these will help configure_full figure out where to fullscreen
3072            the window */
3073         x = self->area.x;
3074         y = self->area.y;
3075         w = self->area.width;
3076         h = self->area.height;
3077     } else {
3078         g_assert(self->pre_fullscreen_area.width > 0 &&
3079                  self->pre_fullscreen_area.height > 0);
3080
3081         x = self->pre_fullscreen_area.x;
3082         y = self->pre_fullscreen_area.y;
3083         w = self->pre_fullscreen_area.width;
3084         h = self->pre_fullscreen_area.height;
3085         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3086     }
3087
3088     ob_debug("Window %s going fullscreen (%d)\n",
3089              self->title, self->fullscreen);
3090
3091     client_setup_decor_and_functions(self, FALSE);
3092     client_move_resize(self, x, y, w, h);
3093
3094     /* and adjust our layer/stacking. do this after resizing the window,
3095        and applying decorations, because windows which fill the screen are
3096        considered "fullscreen" and it affects their layer */
3097     client_calc_layer(self);
3098
3099     if (fs) {
3100         /* try focus us when we go into fullscreen mode */
3101         client_focus(self);
3102     }
3103 }
3104
3105 static void client_iconify_recursive(ObClient *self,
3106                                      gboolean iconic, gboolean curdesk,
3107                                      gboolean hide_animation)
3108 {
3109     GSList *it;
3110     gboolean changed = FALSE;
3111
3112
3113     if (self->iconic != iconic) {
3114         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3115                  self->window);
3116
3117         if (iconic) {
3118             /* don't let non-normal windows iconify along with their parents
3119                or whatever */
3120             if (client_normal(self)) {
3121                 self->iconic = iconic;
3122
3123                 /* update the focus lists.. iconic windows go to the bottom of
3124                    the list */
3125                 focus_order_to_bottom(self);
3126
3127                 changed = TRUE;
3128             }
3129         } else {
3130             self->iconic = iconic;
3131
3132             if (curdesk && self->desktop != screen_desktop &&
3133                 self->desktop != DESKTOP_ALL)
3134                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3135
3136             /* this puts it after the current focused window */
3137             focus_order_remove(self);
3138             focus_order_add_new(self);
3139
3140             changed = TRUE;
3141         }
3142     }
3143
3144     if (changed) {
3145         client_change_state(self);
3146         if (config_animate_iconify && !hide_animation)
3147             frame_begin_iconify_animation(self->frame, iconic);
3148         /* do this after starting the animation so it doesn't flash */
3149         client_showhide(self);
3150     }
3151
3152     /* iconify all direct transients, and deiconify all transients
3153        (non-direct too) */
3154     for (it = self->transients; it; it = g_slist_next(it))
3155         if (it->data != self)
3156             if (client_is_direct_child(self, it->data) || !iconic)
3157                 client_iconify_recursive(it->data, iconic, curdesk,
3158                                          hide_animation);
3159 }
3160
3161 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3162                     gboolean hide_animation)
3163 {
3164     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3165         /* move up the transient chain as far as possible first */
3166         self = client_search_top_direct_parent(self);
3167         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3168     }
3169 }
3170
3171 void client_maximize(ObClient *self, gboolean max, gint dir)
3172 {
3173     gint x, y, w, h;
3174
3175     g_assert(dir == 0 || dir == 1 || dir == 2);
3176     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE)) return; /* can't */
3177
3178     /* check if already done */
3179     if (max) {
3180         if (dir == 0 && self->max_horz && self->max_vert) return;
3181         if (dir == 1 && self->max_horz) return;
3182         if (dir == 2 && self->max_vert) return;
3183     } else {
3184         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3185         if (dir == 1 && !self->max_horz) return;
3186         if (dir == 2 && !self->max_vert) return;
3187     }
3188
3189     /* these will help configure_full figure out which screen to fill with
3190        the window */
3191     x = self->area.x;
3192     y = self->area.y;
3193     w = self->area.width;
3194     h = self->area.height;
3195
3196     if (max) {
3197         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3198             RECT_SET(self->pre_max_area,
3199                      self->area.x, self->pre_max_area.y,
3200                      self->area.width, self->pre_max_area.height);
3201         }
3202         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3203             RECT_SET(self->pre_max_area,
3204                      self->pre_max_area.x, self->area.y,
3205                      self->pre_max_area.width, self->area.height);
3206         }
3207     } else {
3208         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3209             g_assert(self->pre_max_area.width > 0);
3210
3211             x = self->pre_max_area.x;
3212             w = self->pre_max_area.width;
3213
3214             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3215                      0, self->pre_max_area.height);
3216         }
3217         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3218             g_assert(self->pre_max_area.height > 0);
3219
3220             y = self->pre_max_area.y;
3221             h = self->pre_max_area.height;
3222
3223             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3224                      self->pre_max_area.width, 0);
3225         }
3226     }
3227
3228     if (dir == 0 || dir == 1) /* horz */
3229         self->max_horz = max;
3230     if (dir == 0 || dir == 2) /* vert */
3231         self->max_vert = max;
3232
3233     client_change_state(self); /* change the state hints on the client */
3234
3235     client_setup_decor_and_functions(self, FALSE);
3236     client_move_resize(self, x, y, w, h);
3237 }
3238
3239 void client_shade(ObClient *self, gboolean shade)
3240 {
3241     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3242          shade) ||                         /* can't shade */
3243         self->shaded == shade) return;     /* already done */
3244
3245     self->shaded = shade;
3246     client_change_state(self);
3247     client_change_wm_state(self); /* the window is being hidden/shown */
3248     /* resize the frame to just the titlebar */
3249     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3250 }
3251
3252 static void client_ping_event(ObClient *self, gboolean dead)
3253 {
3254     self->not_responding = dead;
3255     client_update_title(self);
3256
3257     if (!dead) {
3258         /* try kill it nicely the first time again, if it started responding
3259            at some point */
3260         self->close_tried_term = FALSE;
3261     }
3262 }
3263
3264 void client_close(ObClient *self)
3265 {
3266     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3267
3268     /* in the case that the client provides no means to requesting that it
3269        close, we just kill it */
3270     if (!self->delete_window)
3271         /* don't use client_kill(), we should only kill based on PID in
3272            response to a lack of PING replies */
3273         XKillClient(ob_display, self->window);
3274     else if (self->not_responding)
3275         client_kill(self);
3276     else
3277         /* request the client to close with WM_DELETE_WINDOW */
3278         PROP_MSG_TO(self->window, self->window, wm_protocols,
3279                     prop_atoms.wm_delete_window, event_curtime, 0, 0, 0,
3280                     NoEventMask);
3281 }
3282
3283 void client_kill(ObClient *self)
3284 {
3285     if (!self->client_machine && self->pid) {
3286         /* running on the local host */
3287         if (!self->close_tried_term) {
3288             ob_debug("killing window 0x%x with pid %lu, with SIGTERM\n",
3289                      self->window, self->pid);
3290             kill(self->pid, SIGTERM);
3291             self->close_tried_term = TRUE;
3292
3293             /* show that we're trying to kill it */
3294             client_update_title(self);
3295         }
3296         else {
3297             ob_debug("killing window 0x%x with pid %lu, with SIGKILL\n",
3298                      self->window, self->pid);
3299             kill(self->pid, SIGKILL); /* kill -9 */
3300         }
3301     }
3302     else
3303         XKillClient(ob_display, self->window);
3304 }
3305
3306 void client_hilite(ObClient *self, gboolean hilite)
3307 {
3308     if (self->demands_attention == hilite)
3309         return; /* no change */
3310
3311     /* don't allow focused windows to hilite */
3312     self->demands_attention = hilite && !client_focused(self);
3313     if (self->frame != NULL) { /* if we're mapping, just set the state */
3314         if (self->demands_attention)
3315             frame_flash_start(self->frame);
3316         else
3317             frame_flash_stop(self->frame);
3318         client_change_state(self);
3319     }
3320 }
3321
3322 static void client_set_desktop_recursive(ObClient *self,
3323                                          guint target,
3324                                          gboolean donthide,
3325                                          gboolean dontraise)
3326 {
3327     guint old;
3328     GSList *it;
3329
3330     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3331
3332         ob_debug("Setting desktop %u\n", target+1);
3333
3334         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3335
3336         old = self->desktop;
3337         self->desktop = target;
3338         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3339         /* the frame can display the current desktop state */
3340         frame_adjust_state(self->frame);
3341         /* 'move' the window to the new desktop */
3342         if (!donthide)
3343             client_hide(self);
3344         client_show(self);
3345         /* raise if it was not already on the desktop */
3346         if (old != DESKTOP_ALL && !dontraise)
3347             stacking_raise(CLIENT_AS_WINDOW(self));
3348         if (STRUT_EXISTS(self->strut))
3349             screen_update_areas();
3350         else
3351             /* the new desktop's geometry may be different, so we may need to
3352                resize, for example if we are maximized */
3353             client_reconfigure(self, FALSE);
3354     }
3355
3356     /* move all transients */
3357     for (it = self->transients; it; it = g_slist_next(it))
3358         if (it->data != self)
3359             if (client_is_direct_child(self, it->data))
3360                 client_set_desktop_recursive(it->data, target,
3361                                              donthide, dontraise);
3362 }
3363
3364 void client_set_desktop(ObClient *self, guint target,
3365                         gboolean donthide, gboolean dontraise)
3366 {
3367     self = client_search_top_direct_parent(self);
3368     client_set_desktop_recursive(self, target, donthide, dontraise);
3369 }
3370
3371 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3372 {
3373     while (child != parent && (child = client_direct_parent(child)));
3374     return child == parent;
3375 }
3376
3377 ObClient *client_search_modal_child(ObClient *self)
3378 {
3379     GSList *it;
3380     ObClient *ret;
3381
3382     for (it = self->transients; it; it = g_slist_next(it)) {
3383         ObClient *c = it->data;
3384         if ((ret = client_search_modal_child(c))) return ret;
3385         if (c->modal) return c;
3386     }
3387     return NULL;
3388 }
3389
3390 gboolean client_validate(ObClient *self)
3391 {
3392     XEvent e;
3393
3394     XSync(ob_display, FALSE); /* get all events on the server */
3395
3396     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3397         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3398         XPutBackEvent(ob_display, &e);
3399         return FALSE;
3400     }
3401
3402     return TRUE;
3403 }
3404
3405 void client_set_wm_state(ObClient *self, glong state)
3406 {
3407     if (state == self->wmstate) return; /* no change */
3408
3409     switch (state) {
3410     case IconicState:
3411         client_iconify(self, TRUE, TRUE, FALSE);
3412         break;
3413     case NormalState:
3414         client_iconify(self, FALSE, TRUE, FALSE);
3415         break;
3416     }
3417 }
3418
3419 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3420 {
3421     gboolean shaded = self->shaded;
3422     gboolean fullscreen = self->fullscreen;
3423     gboolean undecorated = self->undecorated;
3424     gboolean max_horz = self->max_horz;
3425     gboolean max_vert = self->max_vert;
3426     gboolean modal = self->modal;
3427     gboolean iconic = self->iconic;
3428     gboolean demands_attention = self->demands_attention;
3429     gboolean above = self->above;
3430     gboolean below = self->below;
3431     gint i;
3432
3433     if (!(action == prop_atoms.net_wm_state_add ||
3434           action == prop_atoms.net_wm_state_remove ||
3435           action == prop_atoms.net_wm_state_toggle))
3436         /* an invalid action was passed to the client message, ignore it */
3437         return;
3438
3439     for (i = 0; i < 2; ++i) {
3440         Atom state = i == 0 ? data1 : data2;
3441
3442         if (!state) continue;
3443
3444         /* if toggling, then pick whether we're adding or removing */
3445         if (action == prop_atoms.net_wm_state_toggle) {
3446             if (state == prop_atoms.net_wm_state_modal)
3447                 action = modal ? prop_atoms.net_wm_state_remove :
3448                     prop_atoms.net_wm_state_add;
3449             else if (state == prop_atoms.net_wm_state_maximized_vert)
3450                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3451                     prop_atoms.net_wm_state_add;
3452             else if (state == prop_atoms.net_wm_state_maximized_horz)
3453                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3454                     prop_atoms.net_wm_state_add;
3455             else if (state == prop_atoms.net_wm_state_shaded)
3456                 action = shaded ? prop_atoms.net_wm_state_remove :
3457                     prop_atoms.net_wm_state_add;
3458             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3459                 action = self->skip_taskbar ?
3460                     prop_atoms.net_wm_state_remove :
3461                     prop_atoms.net_wm_state_add;
3462             else if (state == prop_atoms.net_wm_state_skip_pager)
3463                 action = self->skip_pager ?
3464                     prop_atoms.net_wm_state_remove :
3465                     prop_atoms.net_wm_state_add;
3466             else if (state == prop_atoms.net_wm_state_hidden)
3467                 action = self->iconic ?
3468                     prop_atoms.net_wm_state_remove :
3469                     prop_atoms.net_wm_state_add;
3470             else if (state == prop_atoms.net_wm_state_fullscreen)
3471                 action = fullscreen ?
3472                     prop_atoms.net_wm_state_remove :
3473                     prop_atoms.net_wm_state_add;
3474             else if (state == prop_atoms.net_wm_state_above)
3475                 action = self->above ? prop_atoms.net_wm_state_remove :
3476                     prop_atoms.net_wm_state_add;
3477             else if (state == prop_atoms.net_wm_state_below)
3478                 action = self->below ? prop_atoms.net_wm_state_remove :
3479                     prop_atoms.net_wm_state_add;
3480             else if (state == prop_atoms.net_wm_state_demands_attention)
3481                 action = self->demands_attention ?
3482                     prop_atoms.net_wm_state_remove :
3483                     prop_atoms.net_wm_state_add;
3484             else if (state == prop_atoms.ob_wm_state_undecorated)
3485                 action = undecorated ? prop_atoms.net_wm_state_remove :
3486                     prop_atoms.net_wm_state_add;
3487         }
3488
3489         if (action == prop_atoms.net_wm_state_add) {
3490             if (state == prop_atoms.net_wm_state_modal) {
3491                 modal = TRUE;
3492             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3493                 max_vert = TRUE;
3494             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3495                 max_horz = TRUE;
3496             } else if (state == prop_atoms.net_wm_state_shaded) {
3497                 shaded = TRUE;
3498             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3499                 self->skip_taskbar = TRUE;
3500             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3501                 self->skip_pager = TRUE;
3502             } else if (state == prop_atoms.net_wm_state_hidden) {
3503                 iconic = TRUE;
3504             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3505                 fullscreen = TRUE;
3506             } else if (state == prop_atoms.net_wm_state_above) {
3507                 above = TRUE;
3508                 below = FALSE;
3509             } else if (state == prop_atoms.net_wm_state_below) {
3510                 above = FALSE;
3511                 below = TRUE;
3512             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3513                 demands_attention = TRUE;
3514             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3515                 undecorated = TRUE;
3516             }
3517
3518         } else { /* action == prop_atoms.net_wm_state_remove */
3519             if (state == prop_atoms.net_wm_state_modal) {
3520                 modal = FALSE;
3521             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3522                 max_vert = FALSE;
3523             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3524                 max_horz = FALSE;
3525             } else if (state == prop_atoms.net_wm_state_shaded) {
3526                 shaded = FALSE;
3527             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3528                 self->skip_taskbar = FALSE;
3529             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3530                 self->skip_pager = FALSE;
3531             } else if (state == prop_atoms.net_wm_state_hidden) {
3532                 iconic = FALSE;
3533             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3534                 fullscreen = FALSE;
3535             } else if (state == prop_atoms.net_wm_state_above) {
3536                 above = FALSE;
3537             } else if (state == prop_atoms.net_wm_state_below) {
3538                 below = FALSE;
3539             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3540                 demands_attention = FALSE;
3541             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3542                 undecorated = FALSE;
3543             }
3544         }
3545     }
3546
3547     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3548         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3549             /* toggling both */
3550             if (max_horz == max_vert) { /* both going the same way */
3551                 client_maximize(self, max_horz, 0);
3552             } else {
3553                 client_maximize(self, max_horz, 1);
3554                 client_maximize(self, max_vert, 2);
3555             }
3556         } else {
3557             /* toggling one */
3558             if (max_horz != self->max_horz)
3559                 client_maximize(self, max_horz, 1);
3560             else
3561                 client_maximize(self, max_vert, 2);
3562         }
3563     }
3564     /* change fullscreen state before shading, as it will affect if the window
3565        can shade or not */
3566     if (fullscreen != self->fullscreen)
3567         client_fullscreen(self, fullscreen);
3568     if (shaded != self->shaded)
3569         client_shade(self, shaded);
3570     if (undecorated != self->undecorated)
3571         client_set_undecorated(self, undecorated);
3572     if (above != self->above || below != self->below) {
3573         self->above = above;
3574         self->below = below;
3575         client_calc_layer(self);
3576     }
3577
3578     if (modal != self->modal) {
3579         self->modal = modal;
3580         /* when a window changes modality, then its stacking order with its
3581            transients needs to change */
3582         stacking_raise(CLIENT_AS_WINDOW(self));
3583
3584         /* it also may get focused. if something is focused that shouldn't
3585            be focused anymore, then move the focus */
3586         if (focus_client && client_focus_target(focus_client) != focus_client)
3587             client_focus(focus_client);
3588     }
3589
3590     if (iconic != self->iconic)
3591         client_iconify(self, iconic, FALSE, FALSE);
3592
3593     if (demands_attention != self->demands_attention)
3594         client_hilite(self, demands_attention);
3595
3596     client_change_state(self); /* change the hint to reflect these changes */
3597 }
3598
3599 ObClient *client_focus_target(ObClient *self)
3600 {
3601     ObClient *child = NULL;
3602
3603     child = client_search_modal_child(self);
3604     if (child) return child;
3605     return self;
3606 }
3607
3608 gboolean client_can_focus(ObClient *self)
3609 {
3610     /* choose the correct target */
3611     self = client_focus_target(self);
3612
3613     if (!self->frame->visible)
3614         return FALSE;
3615
3616     if (!(self->can_focus || self->focus_notify))
3617         return FALSE;
3618
3619     return TRUE;
3620 }
3621
3622 gboolean client_focus(ObClient *self)
3623 {
3624     /* we might not focus this window, so if we have modal children which would
3625        be focused instead, bring them to this desktop */
3626     client_bring_modal_windows(self);
3627
3628     /* choose the correct target */
3629     self = client_focus_target(self);
3630
3631     if (!client_can_focus(self)) {
3632         ob_debug_type(OB_DEBUG_FOCUS,
3633                       "Client %s can't be focused\n", self->title);
3634         return FALSE;
3635     }
3636
3637     ob_debug_type(OB_DEBUG_FOCUS,
3638                   "Focusing client \"%s\" (0x%x) at time %u\n",
3639                   self->title, self->window, event_curtime);
3640
3641     /* if using focus_delay, stop the timer now so that focus doesn't
3642        go moving on us */
3643     event_halt_focus_delay();
3644
3645     /* if there is a grab going on, then we need to cancel it. if we move
3646        focus during the grab, applications will get NotifyWhileGrabbed events
3647        and ignore them !
3648
3649        actions should not rely on being able to move focus during an
3650        interactive grab.
3651     */
3652     event_cancel_all_key_grabs();
3653
3654     xerror_set_ignore(TRUE);
3655     xerror_occured = FALSE;
3656
3657     if (self->can_focus) {
3658         /* This can cause a BadMatch error with CurrentTime, or if an app
3659            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3660         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3661                        event_curtime);
3662     }
3663
3664     if (self->focus_notify) {
3665         XEvent ce;
3666         ce.xclient.type = ClientMessage;
3667         ce.xclient.message_type = prop_atoms.wm_protocols;
3668         ce.xclient.display = ob_display;
3669         ce.xclient.window = self->window;
3670         ce.xclient.format = 32;
3671         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3672         ce.xclient.data.l[1] = event_curtime;
3673         ce.xclient.data.l[2] = 0l;
3674         ce.xclient.data.l[3] = 0l;
3675         ce.xclient.data.l[4] = 0l;
3676         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3677     }
3678
3679     xerror_set_ignore(FALSE);
3680
3681     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3682     return !xerror_occured;
3683 }
3684
3685 static void client_present(ObClient *self, gboolean here, gboolean raise,
3686                            gboolean unshade)
3687 {
3688     if (client_normal(self) && screen_showing_desktop)
3689         screen_show_desktop(FALSE, self);
3690     if (self->iconic)
3691         client_iconify(self, FALSE, here, FALSE);
3692     if (self->desktop != DESKTOP_ALL &&
3693         self->desktop != screen_desktop)
3694     {
3695         if (here)
3696             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3697         else
3698             screen_set_desktop(self->desktop, FALSE);
3699     } else if (!self->frame->visible)
3700         /* if its not visible for other reasons, then don't mess
3701            with it */
3702         return;
3703     if (self->shaded && unshade)
3704         client_shade(self, FALSE);
3705     if (raise)
3706         stacking_raise(CLIENT_AS_WINDOW(self));
3707
3708     client_focus(self);
3709 }
3710
3711 void client_activate(ObClient *self, gboolean here, gboolean raise,
3712                      gboolean unshade, gboolean user)
3713 {
3714     client_present(self, here, raise, unshade);
3715 }
3716
3717 static void client_bring_windows_recursive(ObClient *self,
3718                                            guint desktop,
3719                                            gboolean helpers,
3720                                            gboolean modals,
3721                                            gboolean iconic)
3722 {
3723     GSList *it;
3724
3725     for (it = self->transients; it; it = g_slist_next(it))
3726         client_bring_windows_recursive(it->data, desktop,
3727                                        helpers, modals, iconic);
3728
3729     if (((helpers && client_helper(self)) ||
3730          (modals && self->modal)) &&
3731         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3732          (iconic && self->iconic)))
3733     {
3734         if (iconic && self->iconic)
3735             client_iconify(self, FALSE, TRUE, FALSE);
3736         else
3737             client_set_desktop(self, desktop, FALSE, FALSE);
3738     }
3739 }
3740
3741 void client_bring_helper_windows(ObClient *self)
3742 {
3743     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3744 }
3745
3746 void client_bring_modal_windows(ObClient *self)
3747 {
3748     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3749 }
3750
3751 gboolean client_focused(ObClient *self)
3752 {
3753     return self == focus_client;
3754 }
3755
3756 static ObClientIcon* client_icon_recursive(ObClient *self, gint w, gint h)
3757 {
3758     guint i;
3759     gulong min_diff, min_i;
3760
3761     if (!self->nicons) {
3762         ObClientIcon *parent = NULL;
3763         GSList *it;
3764
3765         for (it = self->parents; it; it = g_slist_next(it)) {
3766             ObClient *c = it->data;
3767             if ((parent = client_icon_recursive(c, w, h)))
3768                 break;
3769         }
3770
3771         return parent;
3772     }
3773
3774     /* some kind of crappy approximation to find the icon closest in size to
3775        what we requested, but icons are generally all the same ratio as
3776        eachother so it's good enough. */
3777
3778     min_diff = ABS(self->icons[0].width - w) + ABS(self->icons[0].height - h);
3779     min_i = 0;
3780
3781     for (i = 1; i < self->nicons; ++i) {
3782         gulong diff;
3783
3784         diff = ABS(self->icons[i].width - w) + ABS(self->icons[i].height - h);
3785         if (diff < min_diff) {
3786             min_diff = diff;
3787             min_i = i;
3788         }
3789     }
3790     return &self->icons[min_i];
3791 }
3792
3793 const ObClientIcon* client_icon(ObClient *self, gint w, gint h)
3794 {
3795     ObClientIcon *ret;
3796     static ObClientIcon deficon;
3797
3798     if (!(ret = client_icon_recursive(self, w, h))) {
3799         deficon.width = deficon.height = 48;
3800         deficon.data = ob_rr_theme->def_win_icon;
3801         ret = &deficon;
3802     }
3803     return ret;
3804 }
3805
3806 void client_set_layer(ObClient *self, gint layer)
3807 {
3808     if (layer < 0) {
3809         self->below = TRUE;
3810         self->above = FALSE;
3811     } else if (layer == 0) {
3812         self->below = self->above = FALSE;
3813     } else {
3814         self->below = FALSE;
3815         self->above = TRUE;
3816     }
3817     client_calc_layer(self);
3818     client_change_state(self); /* reflect this in the state hints */
3819 }
3820
3821 void client_set_undecorated(ObClient *self, gboolean undecorated)
3822 {
3823     if (self->undecorated != undecorated &&
3824         /* don't let it undecorate if the function is missing, but let
3825            it redecorate */
3826         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3827     {
3828         self->undecorated = undecorated;
3829         client_setup_decor_and_functions(self, TRUE);
3830         client_change_state(self); /* reflect this in the state hints */
3831     }
3832 }
3833
3834 guint client_monitor(ObClient *self)
3835 {
3836     return screen_find_monitor(&self->frame->area);
3837 }
3838
3839 ObClient *client_direct_parent(ObClient *self)
3840 {
3841     if (!self->parents) return NULL;
3842     if (self->transient_for_group) return NULL;
3843     return self->parents->data;
3844 }
3845
3846 ObClient *client_search_top_direct_parent(ObClient *self)
3847 {
3848     ObClient *p;
3849     while ((p = client_direct_parent(self))) self = p;
3850     return self;
3851 }
3852
3853 static GSList *client_search_all_top_parents_internal(ObClient *self,
3854                                                       gboolean bylayer,
3855                                                       ObStackingLayer layer)
3856 {
3857     GSList *ret;
3858     ObClient *p;
3859
3860     /* move up the direct transient chain as far as possible */
3861     while ((p = client_direct_parent(self)) &&
3862            (!bylayer || p->layer == layer))
3863         self = p;
3864
3865     if (!self->parents)
3866         ret = g_slist_prepend(NULL, self);
3867     else
3868         ret = g_slist_copy(self->parents);
3869
3870     return ret;
3871 }
3872
3873 GSList *client_search_all_top_parents(ObClient *self)
3874 {
3875     return client_search_all_top_parents_internal(self, FALSE, 0);
3876 }
3877
3878 GSList *client_search_all_top_parents_layer(ObClient *self)
3879 {
3880     return client_search_all_top_parents_internal(self, TRUE, self->layer);
3881 }
3882
3883 ObClient *client_search_focus_parent(ObClient *self)
3884 {
3885     GSList *it;
3886
3887     for (it = self->parents; it; it = g_slist_next(it))
3888         if (client_focused(it->data)) return it->data;
3889
3890     return NULL;
3891 }
3892
3893 ObClient *client_search_parent(ObClient *self, ObClient *search)
3894 {
3895     GSList *it;
3896
3897     for (it = self->parents; it; it = g_slist_next(it))
3898         if (it->data == search) return search;
3899
3900     return NULL;
3901 }
3902
3903 ObClient *client_search_transient(ObClient *self, ObClient *search)
3904 {
3905     GSList *sit;
3906
3907     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
3908         if (sit->data == search)
3909             return search;
3910         if (client_search_transient(sit->data, search))
3911             return search;
3912     }
3913     return NULL;
3914 }
3915
3916 static void detect_edge(Rect area, ObDirection dir,
3917                         gint my_head, gint my_size,
3918                         gint my_edge_start, gint my_edge_size,
3919                         gint *dest, gboolean *near_edge)
3920 {
3921     gint edge_start, edge_size, head, tail;
3922     gboolean skip_head = FALSE, skip_tail = FALSE;
3923
3924     switch (dir) {
3925         case OB_DIRECTION_NORTH:
3926         case OB_DIRECTION_SOUTH:
3927             edge_start = area.x;
3928             edge_size = area.width;
3929             break;
3930         case OB_DIRECTION_EAST:
3931         case OB_DIRECTION_WEST:
3932             edge_start = area.y;
3933             edge_size = area.height;
3934             break;
3935         default:
3936             g_assert_not_reached();
3937     }
3938
3939     /* do we collide with this window? */
3940     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
3941                 edge_start, edge_size))
3942         return;
3943
3944     switch (dir) {
3945         case OB_DIRECTION_NORTH:
3946             head = RECT_BOTTOM(area);
3947             tail = RECT_TOP(area);
3948             break;
3949         case OB_DIRECTION_SOUTH:
3950             head = RECT_TOP(area);
3951             tail = RECT_BOTTOM(area);
3952             break;
3953         case OB_DIRECTION_WEST:
3954             head = RECT_RIGHT(area);
3955             tail = RECT_LEFT(area);
3956             break;
3957         case OB_DIRECTION_EAST:
3958             head = RECT_LEFT(area);
3959             tail = RECT_RIGHT(area);
3960             break;
3961         default:
3962             g_assert_not_reached();
3963     }
3964     switch (dir) {
3965         case OB_DIRECTION_NORTH:
3966         case OB_DIRECTION_WEST:
3967             /* check if our window is past the head of this window */
3968             if (my_head <= head + 1)
3969                 skip_head = TRUE;
3970             /* check if our window's tail is past the tail of this window */
3971             if (my_head + my_size - 1 <= tail)
3972                 skip_tail = TRUE;
3973             /* check if the head of this window is closer than the previously
3974                chosen edge (take into account that the previously chosen
3975                edge might have been a tail, not a head) */
3976             if (head + (*near_edge ? 0 : my_size) < *dest)
3977                 skip_head = TRUE;
3978             /* check if the tail of this window is closer than the previously
3979                chosen edge (take into account that the previously chosen
3980                edge might have been a head, not a tail) */
3981             if (tail - (!*near_edge ? 0 : my_size) < *dest)
3982                 skip_tail = TRUE;
3983             break;
3984         case OB_DIRECTION_SOUTH:
3985         case OB_DIRECTION_EAST:
3986             /* check if our window is past the head of this window */
3987             if (my_head >= head - 1)
3988                 skip_head = TRUE;
3989             /* check if our window's tail is past the tail of this window */
3990             if (my_head - my_size + 1 >= tail)
3991                 skip_tail = TRUE;
3992             /* check if the head of this window is closer than the previously
3993                chosen edge (take into account that the previously chosen
3994                edge might have been a tail, not a head) */
3995             if (head - (*near_edge ? 0 : my_size) > *dest)
3996                 skip_head = TRUE;
3997             /* check if the tail of this window is closer than the previously
3998                chosen edge (take into account that the previously chosen
3999                edge might have been a head, not a tail) */
4000             if (tail + (!*near_edge ? 0 : my_size) > *dest)
4001                 skip_tail = TRUE;
4002             break;
4003         default:
4004             g_assert_not_reached();
4005     }
4006
4007     ob_debug("my head %d size %d\n", my_head, my_size);
4008     ob_debug("head %d tail %d deest %d\n", head, tail, *dest);
4009     if (!skip_head) {
4010         ob_debug("using near edge %d\n", head);
4011         *dest = head;
4012         *near_edge = TRUE;
4013     }
4014     else if (!skip_tail) {
4015         ob_debug("using far edge %d\n", tail);
4016         *dest = tail;
4017         *near_edge = FALSE;
4018     }
4019 }
4020
4021 void client_find_edge_directional(ObClient *self, ObDirection dir,
4022                                   gint my_head, gint my_size,
4023                                   gint my_edge_start, gint my_edge_size,
4024                                   gint *dest, gboolean *near_edge)
4025 {
4026     GList *it;
4027     Rect *a, *mon;
4028     Rect dock_area;
4029     gint edge;
4030
4031     a = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS,
4032                     &self->frame->area);
4033     mon = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR,
4034                       &self->frame->area);
4035
4036     switch (dir) {
4037     case OB_DIRECTION_NORTH:
4038         if (my_head >= RECT_TOP(*mon) + 1)
4039             edge = RECT_TOP(*mon) - 1;
4040         else
4041             edge = RECT_TOP(*a) - 1;
4042         break;
4043     case OB_DIRECTION_SOUTH:
4044         if (my_head <= RECT_BOTTOM(*mon) - 1)
4045             edge = RECT_BOTTOM(*mon) + 1;
4046         else
4047             edge = RECT_BOTTOM(*a) + 1;
4048         break;
4049     case OB_DIRECTION_EAST:
4050         if (my_head <= RECT_RIGHT(*mon) - 1)
4051             edge = RECT_RIGHT(*mon) + 1;
4052         else
4053             edge = RECT_RIGHT(*a) + 1;
4054         break;
4055     case OB_DIRECTION_WEST:
4056         if (my_head >= RECT_LEFT(*mon) + 1)
4057             edge = RECT_LEFT(*mon) - 1;
4058         else
4059             edge = RECT_LEFT(*a) - 1;
4060         break;
4061     default:
4062         g_assert_not_reached();
4063     }
4064     /* default to the far edge, then narrow it down */
4065     *dest = edge;
4066     *near_edge = TRUE;
4067
4068     for (it = client_list; it; it = g_list_next(it)) {
4069         ObClient *cur = it->data;
4070
4071         /* skip windows to not bump into */
4072         if (cur == self)
4073             continue;
4074         if (cur->iconic)
4075             continue;
4076         if (self->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&
4077             cur->desktop != screen_desktop)
4078             continue;
4079
4080         ob_debug("trying window %s\n", cur->title);
4081
4082         detect_edge(cur->frame->area, dir, my_head, my_size, my_edge_start,
4083                     my_edge_size, dest, near_edge);
4084     }
4085     dock_get_area(&dock_area);
4086     detect_edge(dock_area, dir, my_head, my_size, my_edge_start,
4087                 my_edge_size, dest, near_edge);
4088     g_free(a);
4089     g_free(mon);
4090 }
4091
4092 void client_find_move_directional(ObClient *self, ObDirection dir,
4093                                   gint *x, gint *y)
4094 {
4095     gint head, size;
4096     gint e, e_start, e_size;
4097     gboolean near;
4098
4099     switch (dir) {
4100     case OB_DIRECTION_EAST:
4101         head = RECT_RIGHT(self->frame->area);
4102         size = self->frame->area.width;
4103         e_start = RECT_TOP(self->frame->area);
4104         e_size = self->frame->area.height;
4105         break;
4106     case OB_DIRECTION_WEST:
4107         head = RECT_LEFT(self->frame->area);
4108         size = self->frame->area.width;
4109         e_start = RECT_TOP(self->frame->area);
4110         e_size = self->frame->area.height;
4111         break;
4112     case OB_DIRECTION_NORTH:
4113         head = RECT_TOP(self->frame->area);
4114         size = self->frame->area.height;
4115         e_start = RECT_LEFT(self->frame->area);
4116         e_size = self->frame->area.width;
4117         break;
4118     case OB_DIRECTION_SOUTH:
4119         head = RECT_BOTTOM(self->frame->area);
4120         size = self->frame->area.height;
4121         e_start = RECT_LEFT(self->frame->area);
4122         e_size = self->frame->area.width;
4123         break;
4124     default:
4125         g_assert_not_reached();
4126     }
4127
4128     client_find_edge_directional(self, dir, head, size,
4129                                  e_start, e_size, &e, &near);
4130     *x = self->frame->area.x;
4131     *y = self->frame->area.y;
4132     switch (dir) {
4133     case OB_DIRECTION_EAST:
4134         if (near) e -= self->frame->area.width;
4135         else      e++;
4136         *x = e;
4137         break;
4138     case OB_DIRECTION_WEST:
4139         if (near) e++;
4140         else      e -= self->frame->area.width;
4141         *x = e;
4142         break;
4143     case OB_DIRECTION_NORTH:
4144         if (near) e++;
4145         else      e -= self->frame->area.height;
4146         *y = e;
4147         break;
4148     case OB_DIRECTION_SOUTH:
4149         if (near) e -= self->frame->area.height;
4150         else      e++;
4151         *y = e;
4152         break;
4153     default:
4154         g_assert_not_reached();
4155     }
4156     frame_frame_gravity(self->frame, x, y);
4157 }
4158
4159 void client_find_resize_directional(ObClient *self, ObDirection side,
4160                                     gboolean grow,
4161                                     gint *x, gint *y, gint *w, gint *h)
4162 {
4163     gint head;
4164     gint e, e_start, e_size, delta;
4165     gboolean near;
4166     ObDirection dir;
4167
4168     switch (side) {
4169     case OB_DIRECTION_EAST:
4170         head = RECT_RIGHT(self->frame->area) +
4171             (self->size_inc.width - 1) * (grow ? 1 : -1);
4172         e_start = RECT_TOP(self->frame->area);
4173         e_size = self->frame->area.height;
4174         dir = grow ? OB_DIRECTION_EAST : OB_DIRECTION_WEST;
4175         break;
4176     case OB_DIRECTION_WEST:
4177         head = RECT_LEFT(self->frame->area) -
4178             (self->size_inc.width - 1) * (grow ? 1 : -1);
4179         e_start = RECT_TOP(self->frame->area);
4180         e_size = self->frame->area.height;
4181         dir = grow ? OB_DIRECTION_WEST : OB_DIRECTION_EAST;
4182         break;
4183     case OB_DIRECTION_NORTH:
4184         head = RECT_TOP(self->frame->area) -
4185             (self->size_inc.height - 1) * (grow ? 1 : -1);
4186         e_start = RECT_LEFT(self->frame->area);
4187         e_size = self->frame->area.width;
4188         dir = grow ? OB_DIRECTION_NORTH : OB_DIRECTION_SOUTH;
4189         break;
4190     case OB_DIRECTION_SOUTH:
4191         head = RECT_BOTTOM(self->frame->area) +
4192             (self->size_inc.height - 1) * (grow ? 1 : -1);
4193         e_start = RECT_LEFT(self->frame->area);
4194         e_size = self->frame->area.width;
4195         dir = grow ? OB_DIRECTION_SOUTH : OB_DIRECTION_NORTH;
4196         break;
4197     default:
4198         g_assert_not_reached();
4199     }
4200
4201     ob_debug("head %d dir %d\n", head, dir);
4202     client_find_edge_directional(self, dir, head, 1,
4203                                  e_start, e_size, &e, &near);
4204     ob_debug("edge %d\n", e);
4205     *x = self->frame->area.x;
4206     *y = self->frame->area.y;
4207     *w = self->frame->area.width;
4208     *h = self->frame->area.height;
4209     switch (side) {
4210     case OB_DIRECTION_EAST:
4211         if (grow == near) --e;
4212         delta = e - RECT_RIGHT(self->frame->area);
4213         *w += delta;
4214         break;
4215     case OB_DIRECTION_WEST:
4216         if (grow == near) ++e;
4217         delta = RECT_LEFT(self->frame->area) - e;
4218         *x -= delta;
4219         *w += delta;
4220         break;
4221     case OB_DIRECTION_NORTH:
4222         if (grow == near) ++e;
4223         delta = RECT_TOP(self->frame->area) - e;
4224         *y -= delta;
4225         *h += delta;
4226         break;
4227     case OB_DIRECTION_SOUTH:
4228         if (grow == near) --e;
4229         delta = e - RECT_BOTTOM(self->frame->area);
4230         *h += delta;
4231         break;
4232     default:
4233         g_assert_not_reached();
4234     }
4235     frame_frame_gravity(self->frame, x, y);
4236     *w -= self->frame->size.left + self->frame->size.right;
4237     *h -= self->frame->size.top + self->frame->size.bottom;
4238 }
4239
4240 ObClient* client_under_pointer(void)
4241 {
4242     gint x, y;
4243     GList *it;
4244     ObClient *ret = NULL;
4245
4246     if (screen_pointer_pos(&x, &y)) {
4247         for (it = stacking_list; it; it = g_list_next(it)) {
4248             if (WINDOW_IS_CLIENT(it->data)) {
4249                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4250                 if (c->frame->visible &&
4251                     /* check the desktop, this is done during desktop
4252                        switching and windows are shown/hidden status is not
4253                        reliable */
4254                     (c->desktop == screen_desktop ||
4255                      c->desktop == DESKTOP_ALL) &&
4256                     /* ignore all animating windows */
4257                     !frame_iconify_animating(c->frame) &&
4258                     RECT_CONTAINS(c->frame->area, x, y))
4259                 {
4260                     ret = c;
4261                     break;
4262                 }
4263             }
4264         }
4265     }
4266     return ret;
4267 }
4268
4269 gboolean client_has_group_siblings(ObClient *self)
4270 {
4271     return self->group && self->group->members->next;
4272 }