ioncore/group.c

   1 /*
   2  * ion/ioncore/group.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2007.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <string.h>
  10
  11 #include <libtu/minmax.h>
  12 #include <libtu/objp.h>
  13 #include <libmainloop/defer.h>
  14
  15 #include "common.h"
  16 #include "rootwin.h"
  17 #include "focus.h"
  18 #include "global.h"
  19 #include "region.h"
  20 #include "manage.h"
  21 #include "screen.h"
  22 #include "names.h"
  23 #include "saveload.h"
  24 #include "attach.h"
  25 #include "regbind.h"
  26 #include "extlconv.h"
  27 #include "xwindow.h"
  28 #include "resize.h"
  29 #include "stacking.h"
  30 #include "sizepolicy.h"
  31 #include "bindmaps.h"
  32 #include "navi.h"
  33 #include "sizehint.h"
  34 #include "llist.h"
  35 #include "mplex.h"
  36 #include "group.h"
  37 #include "grouppholder.h"
  38 #include "frame.h"
  39 #include "float-placement.h"
  40 #include "return.h"
  41
  42
  43 static void group_place_stdisp(WGroup *ws, WWindow *parent,
  44                                  int pos, WRegion *stdisp);
  45
  46 static void group_remanage_stdisp(WGroup *ws);
  47
  48 static void group_do_set_bottom(WGroup *grp, WStacking *st);
  49
  50
  51 /*{{{ Stacking list stuff */
  52
  53
  54 WStacking *group_get_stacking(WGroup *ws)
  55 {
  56     WWindow *par=REGION_PARENT(ws);
  57
  58     return (par==NULL
  59             ? NULL
  60             : window_get_stacking(par));
  61 }
  62
  63
  64 WStacking **group_get_stackingp(WGroup *ws)
  65 {
  66     WWindow *par=REGION_PARENT(ws);
  67
  68     return (par==NULL
  69             ? NULL
  70             : window_get_stackingp(par));
  71 }
  72
  73
  74 static bool wsfilt(WStacking *st, void *ws)
  75 {
  76     return (st->reg!=NULL && REGION_MANAGER(st->reg)==(WRegion*)ws);
  77 }
  78
  79
  80 static bool wsfilt_nostdisp(WStacking *st, void *ws)
  81 {
  82     return (wsfilt(st, ws) && ((WGroup*)ws)->managed_stdisp!=st);
  83 }
  84
  85
  86 void group_iter_init(WGroupIterTmp *tmp, WGroup *ws)
  87 {
  88     stacking_iter_mgr_init(tmp, ws->managed_list, NULL, ws);
  89 }
  90
  91
  92 void group_iter_init_nostdisp(WGroupIterTmp *tmp, WGroup *ws)
  93 {
  94     stacking_iter_mgr_init(tmp, ws->managed_list, wsfilt_nostdisp, ws);
  95 }
  96
  97
  98 WRegion *group_iter(WGroupIterTmp *tmp)
  99 {
 100     return stacking_iter_mgr(tmp);
 101 }
 102
 103
 104 WStacking *group_iter_nodes(WGroupIterTmp *tmp)
 105 {
 106     return stacking_iter_mgr_nodes(tmp);
 107 }
 108
 109
 110 WGroupIterTmp group_iter_default_tmp;
 111
 112
 113 /*}}}*/
 114
 115
 116 /*{{{ region dynfun implementations */
 117
 118
 119 static void group_fit(WGroup *ws, const WRectangle *geom)
 120 {
 121     REGION_GEOM(ws)=*geom;
 122 }
 123
 124
 125 bool group_fitrep(WGroup *ws, WWindow *par, const WFitParams *fp)
 126 {
 127     WGroupIterTmp tmp;
 128     WStacking *unweaved=NULL;
 129     int xdiff=0, ydiff=0;
 130     WStacking *st;
 131     WWindow *oldpar;
 132     WRectangle g;
 133
 134     oldpar=REGION_PARENT(ws);
 135
 136     if(par==NULL){
 137         if(fp->mode&REGION_FIT_WHATEVER)
 138             return TRUE;
 139         REGION_GEOM(ws)=fp->g;
 140     }else{
 141         if(!region_same_rootwin((WRegion*)ws, (WRegion*)par))
 142             return FALSE;
 143
 144         if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg!=NULL)
 145             region_detach_manager(ws->managed_stdisp->reg);
 146
 147         assert(ws->managed_stdisp==NULL);
 148
 149         xdiff=fp->g.x-REGION_GEOM(ws).x;
 150         ydiff=fp->g.y-REGION_GEOM(ws).y;
 151
 152         region_unset_parent((WRegion*)ws);
 153         XReparentWindow(ioncore_g.dpy, ws->dummywin, par->win, -1, -1);
 154         region_set_parent((WRegion*)ws, par);
 155
 156         REGION_GEOM(ws).x=fp->g.x;
 157         REGION_GEOM(ws).y=fp->g.y;
 158         if(!(fp->mode&REGION_FIT_WHATEVER)){
 159             REGION_GEOM(ws).w=fp->g.w;
 160             REGION_GEOM(ws).h=fp->g.h;
 161         }
 162
 163         if(oldpar!=NULL)
 164             unweaved=stacking_unweave(&oldpar->stacking, wsfilt, (void*)ws);
 165     }
 166
 167     FOR_ALL_NODES_IN_GROUP(ws, st, tmp){
 168         WFitParams fp2=*fp;
 169
 170         if(st->reg==NULL)
 171             continue;
 172
 173         g=REGION_GEOM(st->reg);
 174         g.x+=xdiff;
 175         g.y+=ydiff;
 176
 177         if(fp->mode&REGION_FIT_WHATEVER){
 178             fp2.g=g;
 179         }else{
 180             fp2.g=REGION_GEOM(ws);
 181             sizepolicy(&st->szplcy, st->reg, &g, REGION_RQGEOM_WEAK_ALL, &fp2);
 182         }
 183
 184         if(!region_fitrep(st->reg, par, &fp2)){
 185             warn(TR("Error reparenting %s."), region_name(st->reg));
 186             region_detach_manager(st->reg);
 187         }
 188     }
 189
 190     if(unweaved!=NULL)
 191         stacking_weave(&par->stacking, &unweaved, FALSE);
 192
 193     return TRUE;
 194 }
 195
 196
 197 static void group_map(WGroup *ws)
 198 {
 199     WRegion *reg;
 200     WGroupIterTmp tmp;
 201
 202     REGION_MARK_MAPPED(ws);
 203     XMapWindow(ioncore_g.dpy, ws->dummywin);
 204
 205     FOR_ALL_MANAGED_BY_GROUP(ws, reg, tmp){
 206         region_map(reg);
 207     }
 208 }
 209
 210
 211 static void group_unmap(WGroup *ws)
 212 {
 213     WRegion *reg;
 214     WGroupIterTmp tmp;
 215
 216     REGION_MARK_UNMAPPED(ws);
 217     XUnmapWindow(ioncore_g.dpy, ws->dummywin);
 218
 219     FOR_ALL_MANAGED_BY_GROUP(ws, reg, tmp){
 220         region_unmap(reg);
 221     }
 222 }
 223
 224
 225 static WStacking *find_to_focus(WGroup *ws, WStacking *st, bool group_only)
 226 {
 227     WStacking *stacking=group_get_stacking(ws);
 228
 229     if(stacking==NULL)
 230         return st;
 231
 232     return stacking_find_to_focus_mapped(stacking, st,
 233                                          (group_only ? (WRegion*)ws : NULL));
 234 }
 235
 236
 237 static void group_do_set_focus(WGroup *ws, bool warp)
 238 {
 239     WStacking *st=find_to_focus(ws, ws->current_managed, FALSE);
 240
 241     if(st!=NULL && st->reg!=NULL)
 242         region_do_set_focus(st->reg, warp);
 243     else
 244         region_finalise_focusing((WRegion*)ws, ws->dummywin, warp);
 245 }
 246
 247
 248 static bool group_managed_prepare_focus(WGroup *ws, WRegion *reg,
 249                                         int flags, WPrepareFocusResult *res)
 250 {
 251     WMPlex *mplex=OBJ_CAST(REGION_MANAGER(ws), WMPlex);
 252     WStacking *st=group_find_stacking(ws, reg);
 253
 254     if(st==NULL)
 255         return FALSE;
 256
 257     if(mplex!=NULL){
 258         WStacking *node=mplex_find_stacking(mplex, (WRegion*)ws);
 259
 260         if(node==NULL)
 261             return FALSE;
 262
 263         return mplex_do_prepare_focus(mplex, node, st,
 264                                       flags, res);
 265     }else{
 266         if(!region_prepare_focus((WRegion*)ws, flags, res))
 267             return FALSE;
 268
 269         st=find_to_focus(ws, st, FALSE);
 270
 271         if(st==NULL)
 272             return FALSE;
 273
 274         if(ioncore_g.autoraise &&
 275            !(flags&REGION_GOTO_ENTERWINDOW) &&
 276            st->level>STACKING_LEVEL_BOTTOM){
 277             WStacking **stackingp=group_get_stackingp(ws);
 278             stacking_restack(stackingp, st, None, NULL, NULL, FALSE);
 279         }
 280
 281         res->reg=st->reg;
 282         res->flags=flags;
 283
 284         return (res->reg==reg);
 285     }
 286 }
 287
 288
 289 void group_managed_remove(WGroup *ws, WRegion *reg)
 290 {
 291     bool mcf=region_may_control_focus((WRegion*)ws);
 292     WStacking *st, *next_st=NULL;
 293     bool was_stdisp=FALSE, was_bottom=FALSE;
 294     bool was_current=FALSE;
 295
 296     st=group_find_stacking(ws, reg);
 297
 298     if(st!=NULL){
 299         if(st==ws->bottom){
 300             was_bottom=TRUE;
 301             group_do_set_bottom(ws, NULL);
 302         }
 303
 304         if(st==ws->managed_stdisp){
 305             ws->managed_stdisp=NULL;
 306             was_stdisp=TRUE;
 307         }
 308
 309         if(st==ws->current_managed){
 310             ws->current_managed=NULL;
 311             was_current=TRUE;
 312         }
 313
 314         next_st=stacking_unstack(REGION_PARENT(ws), st);
 315         UNLINK_ITEM(ws->managed_list, st, mgr_next, mgr_prev);
 316         stacking_unassoc(st);
 317         stacking_free(st);
 318     }
 319
 320     region_unset_manager(reg, (WRegion*)ws);
 321
 322     if(!OBJ_IS_BEING_DESTROYED(ws) && was_current){
 323         /* This may still potentially cause problems when focus
 324          * change is pending. Perhaps we should use region_await_focus,
 325          * if it is pointing to our child (and region_may_control_focus
 326          * fail if it is pointing somewhere else).
 327          */
 328         WStacking *stf=find_to_focus(ws, next_st, TRUE);
 329         if(stf!=NULL && mcf){
 330             region_maybewarp_now(stf->reg, FALSE);
 331         }else{
 332             ws->current_managed=stf;
 333         }
 334     }
 335 }
 336
 337
 338 void group_managed_notify(WGroup *ws, WRegion *reg, WRegionNotify how)
 339 {
 340     if(how==ioncore_g.notifies.activated ||
 341        how==ioncore_g.notifies.pseudoactivated){
 342         ws->current_managed=group_find_stacking(ws, reg);
 343     }
 344 }
 345
 346
 347 /*}}}*/
 348
 349
 350 /*{{{ Create/destroy */
 351
 352
 353 bool group_init(WGroup *ws, WWindow *par, const WFitParams *fp)
 354 {
 355     ws->current_managed=NULL;
 356     ws->managed_stdisp=NULL;
 357     ws->bottom=NULL;
 358     ws->managed_list=NULL;
 359
 360     ws->dummywin=XCreateWindow(ioncore_g.dpy, par->win,
 361                                 fp->g.x, fp->g.y, 1, 1, 0,
 362                                 CopyFromParent, InputOnly,
 363                                 CopyFromParent, 0, NULL);
 364     if(ws->dummywin==None)
 365         return FALSE;
 366
 367     region_init(&ws->reg, par, fp);
 368     region_register(&ws->reg);
 369
 370     XSelectInput(ioncore_g.dpy, ws->dummywin,
 371                  FocusChangeMask|KeyPressMask|KeyReleaseMask|
 372                  ButtonPressMask|ButtonReleaseMask);
 373     XSaveContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context,
 374                  (XPointer)ws);
 375
 376     ((WRegion*)ws)->flags|=REGION_GRAB_ON_PARENT;
 377
 378     region_add_bindmap((WRegion*)ws, ioncore_group_bindmap);
 379
 380     return TRUE;
 381 }
 382
 383
 384 WGroup *create_group(WWindow *par, const WFitParams *fp)
 385 {
 386     CREATEOBJ_IMPL(WGroup, group, (p, par, fp));
 387 }
 388
 389
 390 void group_deinit(WGroup *ws)
 391 {
 392     WGroupIterTmp tmp;
 393     WRegion *reg;
 394
 395     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg!=NULL){
 396         group_managed_remove(ws, ws->managed_stdisp->reg);
 397         assert(ws->managed_stdisp==NULL);
 398     }
 399
 400     FOR_ALL_MANAGED_BY_GROUP(ws, reg, tmp){
 401         destroy_obj((Obj*)reg);
 402     }
 403
 404     assert(ws->managed_list==NULL);
 405
 406     XDeleteContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context);
 407     XDestroyWindow(ioncore_g.dpy, ws->dummywin);
 408     ws->dummywin=None;
 409
 410     region_deinit(&ws->reg);
 411 }
 412
 413
 414
 415 bool group_rescue_clientwins(WGroup *ws, WRescueInfo *info)
 416 {
 417     WGroupIterTmp tmp;
 418
 419     group_iter_init_nostdisp(&tmp, ws);
 420
 421     return region_rescue_some_clientwins((WRegion*)ws, info,
 422                                          (WRegionIterator*)group_iter,
 423                                          &tmp);
 424 }
 425
 426
 427 /*}}}*/
 428
 429
 430 /*{{{ Bottom */
 431
 432
 433 void group_bottom_set(WGroup *grp)
 434 {
 435     CALL_DYN(group_bottom_set, grp, (grp));
 436 }
 437
 438
 439 static void group_do_set_bottom(WGroup *grp, WStacking *st)
 440 {
 441     WStacking *was=grp->bottom;
 442     WStacking *std=grp->managed_stdisp;
 443
 444     grp->bottom=st;
 445
 446     if(!OBJ_IS_BEING_DESTROYED(grp)){
 447         bool noremanage=((was==st) ||
 448                          (was==NULL && std==NULL) ||
 449                          (st!=NULL && st==std) ||
 450                          (st==NULL && was==std));
 451
 452         if(!noremanage &&
 453            (st==NULL || HAS_DYN(st->reg, region_manage_stdisp))){
 454             group_remanage_stdisp(grp);
 455         }
 456
 457         group_bottom_set(grp);
 458     }
 459 }
 460
 461
 462 /*EXTL_DOC
 463  * Sets the `bottom' of \var{ws}. The region \var{reg} must already
 464  * be managed by \var{ws}, unless \code{nil}.
 465  */
 466 EXTL_EXPORT_MEMBER
 467 bool group_set_bottom(WGroup *ws, WRegion *reg)
 468 {
 469     WStacking *st=NULL;
 470
 471     if(reg!=NULL){
 472         st=group_find_stacking(ws, reg);
 473
 474         if(st==NULL)
 475             return FALSE;
 476     }
 477
 478     group_do_set_bottom(ws, st);
 479
 480     return TRUE;
 481 }
 482
 483
 484 /*EXTL_DOC
 485  * Returns the `bottom' of \var{ws}.
 486  */
 487 EXTL_SAFE
 488 EXTL_EXPORT_MEMBER
 489 WRegion *group_bottom(WGroup *ws)
 490 {
 491     return (ws->bottom!=NULL ? ws->bottom->reg : NULL);
 492 }
 493
 494
 495 /*}}}*/
 496
 497
 498 /*{{{ Attach */
 499
 500
 501 WStacking *group_do_add_managed(WGroup *ws, WRegion *reg, int level,
 502                                 WSizePolicy szplcy)
 503 {
 504     WStacking *st=NULL;
 505     CALL_DYN_RET(st, WStacking*, group_do_add_managed, ws,
 506                  (ws, reg, level, szplcy));
 507     return st;
 508 }
 509
 510
 511 WStacking *group_do_add_managed_default(WGroup *ws, WRegion *reg, int level,
 512                                         WSizePolicy szplcy)
 513 {
 514     WStacking *st=NULL, *tmp=NULL;
 515     Window bottom=None, top=None;
 516     WStacking **stackingp=group_get_stackingp(ws);
 517     WFrame *frame;
 518
 519     if(stackingp==NULL)
 520         return NULL;
 521
 522     st=create_stacking();
 523
 524     if(st==NULL)
 525         return NULL;
 526
 527     if(!stacking_assoc(st, reg)){
 528         stacking_free(st);
 529         return  NULL;
 530     }
 531
 532     frame=OBJ_CAST(reg, WFrame);
 533     if(frame!=NULL){
 534         if(framemode_unalt(frame_mode(frame))==FRAME_MODE_TILED)
 535             frame_set_mode(frame, FRAME_MODE_FLOATING);
 536     }
 537
 538     st->level=level;
 539     st->szplcy=szplcy;
 540
 541     LINK_ITEM_FIRST(tmp, st, next, prev);
 542     stacking_weave(stackingp, &tmp, FALSE);
 543     assert(tmp==NULL);
 544
 545     LINK_ITEM(ws->managed_list, st, mgr_next, mgr_prev);
 546     region_set_manager(reg, (WRegion*)ws);
 547
 548     if(region_is_fully_mapped((WRegion*)ws))
 549         region_map(reg);
 550
 551     return st;
 552 }
 553
 554
 555 static void geom_group_to_parent(WGroup *ws, const WRectangle *g,
 556                                  WRectangle *wg)
 557 {
 558     wg->x=g->x+REGION_GEOM(ws).x;
 559     wg->y=g->y+REGION_GEOM(ws).y;
 560     wg->w=maxof(1, g->w);
 561     wg->h=maxof(1, g->h);
 562 }
 563
 564
 565 static int group_must_focus(WGroup *ws, WStacking *st)
 566 {
 567     WStacking *stacking=group_get_stacking(ws);
 568
 569     return (stacking!=NULL && stacking_must_focus(stacking, st));
 570 }
 571
 572
 573 bool group_do_attach_final(WGroup *ws,
 574                            WRegion *reg,
 575                            const WGroupAttachParams *param)
 576 {
 577     WStacking *st, *stabove=NULL;
 578     WSizePolicy szplcy;
 579     WFitParams fp;
 580     WRectangle g;
 581     uint level;
 582     int weak;
 583     bool sw;
 584
 585     /* Stacking  */
 586     if(param->stack_above!=NULL)
 587         stabove=group_find_stacking(ws, param->stack_above);
 588
 589     level=(stabove!=NULL
 590            ? stabove->level
 591            : (param->level_set
 592               ? param->level
 593               : STACKING_LEVEL_NORMAL));
 594
 595     /* Fit */
 596     szplcy=(param->szplcy_set
 597             ? param->szplcy
 598             : (param->bottom
 599                ? SIZEPOLICY_FULL_EXACT
 600                : SIZEPOLICY_UNCONSTRAINED));
 601
 602     weak=(param->geom_weak_set
 603           ? param->geom_weak
 604           : (param->geom_set
 605              ? 0
 606              : REGION_RQGEOM_WEAK_ALL));
 607
 608     if(param->geom_set)
 609         geom_group_to_parent(ws, &param->geom, &g);
 610     else
 611         g=REGION_GEOM(reg);
 612
 613     /* If the requested geometry does not overlap the workspaces's geometry,
 614      * position request is never honoured.
 615      */
 616     if((g.x+g.w<=REGION_GEOM(ws).x) ||
 617        (g.x>=REGION_GEOM(ws).x+REGION_GEOM(ws).w)){
 618         weak|=REGION_RQGEOM_WEAK_X;
 619     }
 620
 621     if((g.y+g.h<=REGION_GEOM(ws).y) ||
 622        (g.y>=REGION_GEOM(ws).y+REGION_GEOM(ws).h)){
 623         weak|=REGION_RQGEOM_WEAK_Y;
 624     }
 625
 626     if(weak&(REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y) &&
 627         (szplcy==SIZEPOLICY_UNCONSTRAINED ||
 628          szplcy==SIZEPOLICY_FREE ||
 629          szplcy==SIZEPOLICY_FREE_GLUE /* without flags */)){
 630         /* TODO: use 'weak'? */
 631         group_calc_placement(ws, level, &g);
 632     }
 633
 634     fp.g=REGION_GEOM(ws);
 635     fp.mode=REGION_FIT_EXACT;
 636
 637     sizepolicy(&szplcy, reg, &g, weak, &fp);
 638
 639     if(rectangle_compare(&fp.g, &REGION_GEOM(reg))!=RECTANGLE_SAME)
 640         region_fitrep(reg, NULL, &fp);
 641
 642     /* Add */
 643     st=group_do_add_managed(ws, reg, level, szplcy);
 644
 645     if(st==NULL)
 646         return FALSE;
 647
 648     if(stabove!=NULL)
 649         st->above=stabove;
 650
 651     if(param->bottom)
 652         group_do_set_bottom(ws, st);
 653
 654     /* Focus */
 655     sw=((param->switchto_set ? param->switchto : ioncore_g.switchto_new)
 656         ? st==find_to_focus(ws, st, FALSE)
 657         : group_must_focus(ws, st));
 658
 659     if(sw){
 660         if(region_may_control_focus((WRegion*)ws))
 661             region_set_focus(st->reg);
 662         else
 663             ws->current_managed=st;
 664     }else if(region_is_fully_mapped(reg)){
 665         region_pointer_focus_hack(reg);
 666     }
 667
 668     return TRUE;
 669 }
 670
 671
 672 WRegion *group_do_attach(WGroup *ws,
 673                          /*const*/ WGroupAttachParams *param,
 674                          WRegionAttachData *data)
 675 {
 676     WFitParams fp;
 677     WWindow *par;
 678     WRegion *reg;
 679
 680     if(ws->bottom!=NULL && param->bottom){
 681         warn(TR("'bottom' already set."));
 682         return NULL;
 683     }
 684
 685     par=REGION_PARENT(ws);
 686     assert(par!=NULL);
 687
 688     if(param->geom_set){
 689         geom_group_to_parent(ws, &param->geom, &fp.g);
 690         fp.mode=REGION_FIT_EXACT;
 691     }else{
 692         fp.g=REGION_GEOM(ws);
 693         fp.mode=REGION_FIT_BOUNDS|REGION_FIT_WHATEVER;
 694     }
 695
 696     return region_attach_helper((WRegion*) ws, par, &fp,
 697                                 (WRegionDoAttachFn*)group_do_attach_final,
 698                                 /*(const WRegionAttachParams*)*/param, data);
 699     /*                            ^^^^ doesn't seem to work. */
 700 }
 701
 702
 703 void group_get_attach_params(WGroup *ws, ExtlTab tab,
 704                              WGroupAttachParams *par)
 705 {
 706     int tmp;
 707     bool tmpb;
 708     char *tmps;
 709     ExtlTab g;
 710
 711     par->switchto_set=0;
 712     par->level_set=0;
 713     par->szplcy_set=0;
 714     par->geom_set=0;
 715     par->bottom=0;
 716
 717     if(extl_table_is_bool_set(tab, "bottom")){
 718         par->level=STACKING_LEVEL_BOTTOM;
 719         par->level_set=1;
 720         par->bottom=1;
 721     }
 722
 723     if(extl_table_gets_i(tab, "level", &tmp)){
 724         if(tmp>=0){
 725             par->level_set=1;
 726             par->level=tmp;
 727         }
 728     }
 729
 730     if(!par->level_set && extl_table_is_bool_set(tab, "modal")){
 731         par->level=STACKING_LEVEL_MODAL1;
 732         par->level_set=1;
 733     }
 734
 735     if(extl_table_gets_b(tab, "switchto", &tmpb)){
 736         par->switchto=(tmpb!=0);
 737         par->switchto_set=1;
 738     }
 739
 740     if(extl_table_gets_i(tab, "sizepolicy", &tmp)){
 741         par->szplcy_set=1;
 742         par->szplcy=tmp;
 743     }else if(extl_table_gets_s(tab, "sizepolicy", &tmps)){
 744         if(string2sizepolicy(tmps, &par->szplcy))
 745             par->szplcy_set=1;
 746         free(tmps);
 747     }
 748
 749     if(extl_table_gets_t(tab, "geom", &g)){
 750         int n=0;
 751
 752         if(extl_table_gets_i(g, "x", &(par->geom.x)))
 753             n++;
 754         if(extl_table_gets_i(g, "y", &(par->geom.y)))
 755             n++;
 756         if(extl_table_gets_i(g, "w", &(par->geom.w)))
 757             n++;
 758         if(extl_table_gets_i(g, "h", &(par->geom.h)))
 759             n++;
 760
 761         if(n==4)
 762             par->geom_set=1;
 763
 764         extl_unref_table(g);
 765     }
 766 }
 767
 768
 769
 770 /*EXTL_DOC
 771  * Attach and reparent existing region \var{reg} to \var{ws}.
 772  * The table \var{param} may contain the fields \var{index} and
 773  * \var{switchto} that are interpreted as for \fnref{WMPlex.attach_new}.
 774  */
 775 EXTL_EXPORT_MEMBER
 776 WRegion *group_attach(WGroup *ws, WRegion *reg, ExtlTab param)
 777 {
 778     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 779     WRegionAttachData data;
 780
 781     if(reg==NULL)
 782         return NULL;
 783
 784     group_get_attach_params(ws, param, &par);
 785
 786     data.type=REGION_ATTACH_REPARENT;
 787     data.u.reg=reg;
 788
 789     return group_do_attach(ws, &par, &data);
 790 }
 791
 792
 793 /*EXTL_DOC
 794  * Create a new region to be managed by \var{ws}. At least the following
 795  * fields in \var{param} are understood:
 796  *
 797  * \begin{tabularx}{\linewidth}{lX}
 798  *  \tabhead{Field & Description}
 799  *  \var{type} & (string) Class of the object to be created. Mandatory. \\
 800  *  \var{name} & (string) Name of the object to be created. \\
 801  *  \var{switchto} & (boolean) Should the region be switched to? \\
 802  *  \var{level} & (integer) Stacking level; default is 1. \\
 803  *  \var{modal} & (boolean) Make object modal; ignored if level is set. \\
 804  *  \var{sizepolicy} & (string) Size policy; see Section \ref{sec:sizepolicies}. \\
 805  *  \var{bottom} & (boolean) Mark the attached region as the
 806  *                 ``bottom'' of \var{ws}. \\
 807  * \end{tabularx}
 808  *
 809  * In addition parameters to the region to be created are passed in this
 810  * same table.
 811  */
 812 EXTL_EXPORT_MEMBER
 813 WRegion *group_attach_new(WGroup *ws, ExtlTab param)
 814 {
 815     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 816     WRegionAttachData data;
 817
 818     group_get_attach_params(ws, param, &par);
 819
 820     data.type=REGION_ATTACH_LOAD;
 821     data.u.tab=param;
 822
 823     return group_do_attach(ws, &par, &data);
 824 }
 825
 826
 827 /*}}}*/
 828
 829
 830 /*{{{ Status display support */
 831
 832
 833 static int stdisp_szplcy(const WMPlexSTDispInfo *di, WRegion *stdisp)
 834 {
 835     int pos=di->pos;
 836     int policy=0, gravity=0;
 837
 838     if(di->fullsize){
 839         if(region_orientation(stdisp)==REGION_ORIENTATION_VERTICAL){
 840             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_BL)
 841                 policy=SIZEPOLICY_STRETCH_LEFT;
 842             else
 843                 policy=SIZEPOLICY_STRETCH_RIGHT;
 844         }else{
 845             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_TR)
 846                 policy=SIZEPOLICY_STRETCH_TOP;
 847             else
 848                 policy=SIZEPOLICY_STRETCH_BOTTOM;
 849         }
 850     }else{
 851         policy=SIZEPOLICY_GRAVITY;
 852     }
 853
 854     if(pos==MPLEX_STDISP_TL)
 855         gravity=SIZEPOLICY_VERT_TOP|SIZEPOLICY_HORIZ_LEFT;
 856     else if(pos==MPLEX_STDISP_BL)
 857         gravity=SIZEPOLICY_VERT_BOTTOM|SIZEPOLICY_HORIZ_LEFT;
 858     else if(pos==MPLEX_STDISP_TR)
 859         gravity=SIZEPOLICY_VERT_TOP|SIZEPOLICY_HORIZ_RIGHT;
 860     else /*if(pos=MPLEX_STDISP_BR)*/
 861         gravity=SIZEPOLICY_VERT_BOTTOM|SIZEPOLICY_HORIZ_RIGHT;
 862
 863     return (policy|gravity);
 864 }
 865
 866
 867 void group_manage_stdisp(WGroup *ws, WRegion *stdisp,
 868                          const WMPlexSTDispInfo *di)
 869 {
 870     WFitParams fp;
 871     uint szplcy;
 872     WRegion *b=(ws->bottom==NULL ? NULL : ws->bottom->reg);
 873
 874     /* Check if 'bottom' wants to manage the stdisp. */
 875     if(b!=NULL
 876        && !OBJ_IS_BEING_DESTROYED(b)
 877        && HAS_DYN(b, region_manage_stdisp)){
 878         region_manage_stdisp(b, stdisp, di);
 879         if(REGION_MANAGER(stdisp)==b)
 880             return;
 881     }
 882
 883     /* No. */
 884
 885     szplcy=stdisp_szplcy(di, stdisp)|SIZEPOLICY_SHRUNK;
 886
 887     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg==stdisp){
 888         if(ws->managed_stdisp->szplcy==szplcy)
 889             return;
 890         ws->managed_stdisp->szplcy=szplcy;
 891     }else{
 892         region_detach_manager(stdisp);
 893         ws->managed_stdisp=group_do_add_managed(ws, stdisp,
 894                                                 STACKING_LEVEL_ON_TOP,
 895                                                 szplcy);
 896     }
 897
 898     stdisp->flags|=REGION_SKIP_FOCUS;
 899
 900     fp.g=REGION_GEOM(ws);
 901     fp.mode=0;
 902
 903     sizepolicy(&ws->managed_stdisp->szplcy, stdisp, NULL, 0, &fp);
 904
 905     region_fitrep(stdisp, NULL, &fp);
 906 }
 907
 908
 909 static void group_remanage_stdisp(WGroup *ws)
 910 {
 911     WMPlex *mplex=OBJ_CAST(REGION_MANAGER(ws), WMPlex);
 912
 913     if(mplex!=NULL &&
 914        mplex->mx_current!=NULL &&
 915        mplex->mx_current->st->reg==(WRegion*)ws){
 916         mplex_remanage_stdisp(mplex);
 917     }
 918 }
 919
 920
 921 /*}}}*/
 922
 923
 924 /*{{{ Geometry requests */
 925
 926
 927 void group_managed_rqgeom(WGroup *ws, WRegion *reg,
 928                           const WRQGeomParams *rq,
 929                           WRectangle *geomret)
 930 {
 931     WFitParams fp;
 932     WStacking *st;
 933
 934     st=group_find_stacking(ws, reg);
 935
 936     if(st==NULL){
 937         fp.g=rq->geom;
 938         fp.mode=REGION_FIT_EXACT;
 939     }else{
 940         fp.g=REGION_GEOM(ws);
 941         fp.mode=0;
 942         sizepolicy(&st->szplcy, reg, &rq->geom, rq->flags, &fp);
 943     }
 944
 945     if(geomret!=NULL)
 946         *geomret=fp.g;
 947
 948     if(!(rq->flags&REGION_RQGEOM_TRYONLY))
 949         region_fitrep(reg, NULL, &fp);
 950 }
 951
 952
 953 void group_managed_rqgeom_absolute(WGroup *grp, WRegion *sub,
 954                                    const WRQGeomParams *rq,
 955                                    WRectangle *geomret)
 956 {
 957     if(grp->bottom!=NULL && grp->bottom->reg==sub){
 958         region_rqgeom((WRegion*)grp, rq, geomret);
 959         if(!(rq->flags&REGION_RQGEOM_TRYONLY) && geomret!=NULL)
 960             *geomret=REGION_GEOM(sub);
 961     }else{
 962         WRQGeomParams rq2=*rq;
 963         rq2.flags&=~REGION_RQGEOM_ABSOLUTE;
 964
 965         region_managed_rqgeom((WRegion*)grp, sub, &rq2, geomret);
 966     }
 967 }
 968
 969
 970 /*}}}*/
 971
 972
 973 /*{{{ Navigation */
 974
 975
 976 static WStacking *nxt(WGroup *ws, WStacking *st, bool wrap)
 977 {
 978     return (st->mgr_next!=NULL
 979             ? st->mgr_next
 980             : (wrap ? ws->managed_list : NULL));
 981 }
 982
 983
 984 static WStacking *prv(WGroup *ws, WStacking *st, bool wrap)
 985 {
 986     return (st!=ws->managed_list
 987             ? st->mgr_prev
 988             : (wrap ? st->mgr_prev : NULL));
 989 }
 990
 991
 992 typedef WStacking *NxtFn(WGroup *ws, WStacking *st, bool wrap);
 993
 994
 995 static bool focusable(WGroup *ws, WStacking *st, uint min_level)
 996 {
 997     return (st->reg!=NULL
 998             && REGION_IS_MAPPED(st->reg)
 999             && !(st->reg->flags&REGION_SKIP_FOCUS)
1000             && st->level>=min_level);
1001 }
1002
1003
1004 static WStacking *do_get_next(WGroup *ws, WStacking *sti,
1005                               NxtFn *fn, bool wrap, bool sti_ok)
1006 {
1007     WStacking *st, *stacking;
1008     uint min_level=0;
1009
1010     stacking=group_get_stacking(ws);
1011
1012     if(stacking!=NULL)
1013         min_level=stacking_min_level_mapped(stacking);
1014
1015     st=sti;
1016     while(1){
1017         st=fn(ws, st, wrap);
1018
1019         if(st==NULL || st==sti)
1020             break;
1021
1022         if(focusable(ws, st, min_level))
1023             return st;
1024     }
1025
1026     if(sti_ok && focusable(ws, sti, min_level))
1027         return sti;
1028
1029     return NULL;
1030 }
1031
1032
1033 static WStacking *group_do_navi_first(WGroup *ws, WRegionNavi nh)
1034 {
1035     WStacking *lst=ws->managed_list;
1036
1037     if(lst==NULL)
1038         return NULL;
1039
1040     if(nh==REGION_NAVI_ANY &&
1041        ws->current_managed!=NULL &&
1042        ws->current_managed->reg!=NULL){
1043         return ws->current_managed;
1044     }
1045
1046     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1047        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1048         return do_get_next(ws, lst, prv, TRUE, TRUE);
1049     }else{
1050         return do_get_next(ws, lst->mgr_prev, nxt, TRUE, TRUE);
1051     }
1052 }
1053
1054
1055 static WRegion *group_navi_first(WGroup *ws, WRegionNavi nh,
1056                                  WRegionNaviData *data)
1057 {
1058     WStacking *st=group_do_navi_first(ws, nh);
1059
1060     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1061 }
1062
1063
1064 static WStacking *group_do_navi_next(WGroup *ws, WStacking *st,
1065                                      WRegionNavi nh, bool wrap)
1066 {
1067     if(st==NULL)
1068         return group_do_navi_first(ws, nh);
1069
1070     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1071        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1072         return do_get_next(ws, st, nxt, wrap, FALSE);
1073     }else{
1074         return do_get_next(ws, st, prv, wrap, FALSE);
1075     }
1076 }
1077
1078 static WRegion *group_navi_next(WGroup *ws, WRegion *reg,
1079                                 WRegionNavi nh, WRegionNaviData *data)
1080 {
1081     WStacking *st=group_find_stacking(ws, reg);
1082
1083     st=group_do_navi_next(ws, st, nh, FALSE);
1084
1085     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1086 }
1087
1088
1089 /*}}}*/
1090
1091
1092 /*{{{ Stacking */
1093
1094
1095 /*
1096  * Note: Managed objects are considered to be stacked separately from the
1097  * group, slightly violating expectations.
1098  */
1099
1100 void group_stacking(WGroup *ws, Window *bottomret, Window *topret)
1101 {
1102     Window win=region_xwindow((WRegion*)ws);
1103
1104     *bottomret=win;
1105     *topret=win;
1106 }
1107
1108
1109 void group_restack(WGroup *ws, Window other, int mode)
1110 {
1111     Window win;
1112
1113     win=region_xwindow((WRegion*)ws);
1114     if(win!=None){
1115         xwindow_restack(win, other, mode);
1116         other=win;
1117         mode=Above;
1118     }
1119 }
1120
1121
1122 WStacking *group_find_stacking(WGroup *ws, WRegion *r)
1123 {
1124     if(r==NULL || REGION_MANAGER(r)!=(WRegion*)ws)
1125         return NULL;
1126
1127     return ioncore_find_stacking(r);
1128 }
1129
1130
1131 static WStacking *find_stacking_if_not_on_ws(WGroup *ws, Window w)
1132 {
1133     WRegion *r=xwindow_region_of(w);
1134     WStacking *st=NULL;
1135
1136     while(r!=NULL){
1137         if(REGION_MANAGER(r)==(WRegion*)ws)
1138             break;
1139         st=group_find_stacking(ws, r);
1140         if(st!=NULL)
1141             break;
1142         r=REGION_MANAGER(r);
1143     }
1144
1145     return st;
1146 }
1147
1148
1149 bool group_managed_rqorder(WGroup *grp, WRegion *reg, WRegionOrder order)
1150 {
1151     WStacking **stackingp=group_get_stackingp(grp);
1152     WStacking *st;
1153
1154     if(stackingp==NULL || *stackingp==NULL)
1155         return FALSE;
1156
1157     st=group_find_stacking(grp, reg);
1158
1159     if(st==NULL)
1160         return FALSE;
1161
1162     stacking_restack(stackingp, st, None, NULL, NULL,
1163                      (order!=REGION_ORDER_FRONT));
1164
1165     return TRUE;
1166 }
1167
1168
1169 /*}}}*/
1170
1171
1172 /*{{{ Misc. */
1173
1174
1175 /*EXTL_DOC
1176  * Iterate over managed regions of \var{ws} until \var{iterfn} returns
1177  * \code{false}.
1178  * The function itself returns \code{true} if it reaches the end of list
1179  * without this happening.
1180  */
1181 EXTL_SAFE
1182 EXTL_EXPORT_MEMBER
1183 bool group_managed_i(WGroup *ws, ExtlFn iterfn)
1184 {
1185     WGroupIterTmp tmp;
1186     group_iter_init(&tmp, ws);
1187
1188     return extl_iter_objlist_(iterfn, (ObjIterator*)group_iter, &tmp);
1189 }
1190
1191
1192 WRegion* group_current(WGroup *ws)
1193 {
1194     return (ws->current_managed!=NULL ? ws->current_managed->reg : NULL);
1195 }
1196
1197
1198 void group_size_hints(WGroup *ws, WSizeHints *hints_ret)
1199 {
1200     if(ws->bottom==NULL || ws->bottom->reg==NULL){
1201         sizehints_clear(hints_ret);
1202     }else{
1203         region_size_hints(ws->bottom->reg, hints_ret);
1204         hints_ret->no_constrain=TRUE;
1205     }
1206 }
1207
1208
1209 Window group_xwindow(const WGroup *ws)
1210 {
1211     return ws->dummywin;
1212 }
1213
1214
1215 /*EXTL_DOC
1216  * Returns the group of \var{reg}, if it is managed by one,
1217  * and \var{reg} itself otherwise.
1218  */
1219 /*EXTL_EXPORT_MEMBER
1220 WRegion *region_group_of(WRegion *reg)
1221 {
1222     WRegion *mgr=REGION_MANAGER(reg);
1223
1224     return (OBJ_IS(mgr, WGroup) ? mgr : reg);
1225 }*/
1226
1227
1228 /*EXTL_DOC
1229  * Returns the group of \var{reg}, if \var{reg} is its bottom,
1230  * and \var{reg} itself otherwise.
1231  */
1232 EXTL_EXPORT_MEMBER
1233 WRegion *region_groupleader_of(WRegion *reg)
1234 {
1235     WGroup *grp=REGION_MANAGER_CHK(reg, WGroup);
1236
1237     return ((grp!=NULL && group_bottom(grp)==reg)
1238             ? (WRegion*)grp
1239             : reg);
1240 }
1241
1242
1243 /*}}}*/
1244
1245
1246 /*{{{ Save/load */
1247
1248
1249 static ExtlTab group_get_configuration(WGroup *ws)
1250 {
1251     ExtlTab tab, mgds, subtab, g;
1252     WStacking *st;
1253     WGroupIterTmp tmp;
1254     WMPlex *par;
1255     int n=0;
1256     WRectangle tmpg;
1257
1258     tab=region_get_base_configuration((WRegion*)ws);
1259
1260     mgds=extl_create_table();
1261
1262     extl_table_sets_t(tab, "managed", mgds);
1263
1264     /* TODO: stacking order messed up */
1265
1266     FOR_ALL_NODES_IN_GROUP(ws, st, tmp){
1267         if(st->reg==NULL)
1268             continue;
1269
1270         subtab=region_get_configuration(st->reg);
1271
1272         if(subtab!=extl_table_none()){
1273             extl_table_sets_s(subtab, "sizepolicy",
1274                               sizepolicy2string(st->szplcy));
1275             extl_table_sets_i(subtab, "level", st->level);
1276
1277             tmpg=REGION_GEOM(st->reg);
1278             tmpg.x-=REGION_GEOM(ws).x;
1279             tmpg.y-=REGION_GEOM(ws).y;
1280
1281             g=extl_table_from_rectangle(&tmpg);
1282             extl_table_sets_t(subtab, "geom", g);
1283             extl_unref_table(g);
1284
1285             if(ws->bottom==st)
1286                 extl_table_sets_b(subtab, "bottom", TRUE);
1287
1288             extl_table_seti_t(mgds, ++n, subtab);
1289             extl_unref_table(subtab);
1290         }
1291     }
1292
1293     extl_unref_table(mgds);
1294
1295     return tab;
1296 }
1297
1298
1299 void group_do_load(WGroup *ws, ExtlTab tab)
1300 {
1301     ExtlTab substab, subtab;
1302     int i, n;
1303
1304     if(extl_table_gets_t(tab, "managed", &substab)){
1305         n=extl_table_get_n(substab);
1306         for(i=1; i<=n; i++){
1307             if(extl_table_geti_t(substab, i, &subtab)){
1308                 group_attach_new(ws, subtab);
1309                 extl_unref_table(subtab);
1310             }
1311         }
1312
1313         extl_unref_table(substab);
1314     }
1315 }
1316
1317
1318 WRegion *group_load(WWindow *par, const WFitParams *fp, ExtlTab tab)
1319 {
1320     WGroup *ws;
1321
1322     ws=create_group(par, fp);
1323
1324     if(ws==NULL)
1325         return NULL;
1326
1327     group_do_load(ws, tab);
1328
1329     return (WRegion*)ws;
1330 }
1331
1332
1333 /*}}}*/
1334
1335
1336 /*{{{ Dynamic function table and class implementation */
1337
1338
1339 static DynFunTab group_dynfuntab[]={
1340     {(DynFun*)region_fitrep,
1341      (DynFun*)group_fitrep},
1342
1343     {region_map,
1344      group_map},
1345
1346     {region_unmap,
1347      group_unmap},
1348
1349     {(DynFun*)region_managed_prepare_focus,
1350      (DynFun*)group_managed_prepare_focus},
1351
1352     {region_do_set_focus,
1353      group_do_set_focus},
1354
1355     {region_managed_notify,
1356      group_managed_notify},
1357
1358     {region_managed_remove,
1359      group_managed_remove},
1360
1361     {(DynFun*)region_get_configuration,
1362      (DynFun*)group_get_configuration},
1363
1364     {(DynFun*)region_current,
1365      (DynFun*)group_current},
1366
1367     {(DynFun*)region_rescue_clientwins,
1368      (DynFun*)group_rescue_clientwins},
1369
1370     {region_restack,
1371      group_restack},
1372
1373     {region_stacking,
1374      group_stacking},
1375
1376     {(DynFun*)region_managed_get_pholder,
1377      (DynFun*)group_managed_get_pholder},
1378
1379     {region_managed_rqgeom,
1380      group_managed_rqgeom},
1381
1382     {region_managed_rqgeom_absolute,
1383      group_managed_rqgeom_absolute},
1384
1385     {(DynFun*)group_do_add_managed,
1386      (DynFun*)group_do_add_managed_default},
1387
1388     {region_size_hints,
1389      group_size_hints},
1390
1391     {(DynFun*)region_xwindow,
1392      (DynFun*)group_xwindow},
1393
1394     {(DynFun*)region_navi_first,
1395      (DynFun*)group_navi_first},
1396
1397     {(DynFun*)region_navi_next,
1398      (DynFun*)group_navi_next},
1399
1400     {(DynFun*)region_managed_rqorder,
1401      (DynFun*)group_managed_rqorder},
1402
1403     END_DYNFUNTAB
1404 };
1405
1406
1407 EXTL_EXPORT
1408 IMPLCLASS(WGroup, WRegion, group_deinit, group_dynfuntab);
1409
1410
1411 /*}}}*/
1412