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 bool group_refocus_(WGroup *ws, WStacking *st)
 238 {
 239     if(st!=ws->current_managed && st->reg!=NULL){
 240         if(region_may_control_focus((WRegion*)ws))
 241             region_set_focus(st->reg);
 242         else
 243             ws->current_managed=st;
 244         return TRUE;
 245     }
 246
 247     return FALSE;
 248 }
 249
 250
 251 static void group_do_set_focus(WGroup *ws, bool warp)
 252 {
 253     WStacking *st=ws->current_managed;
 254
 255     if(st==NULL || st->reg==NULL)
 256         st=find_to_focus(ws, NULL, TRUE);
 257
 258     if(st!=NULL && st->reg!=NULL)
 259         region_do_set_focus(st->reg, warp);
 260     else
 261         region_finalise_focusing((WRegion*)ws, ws->dummywin, warp);
 262 }
 263
 264
 265 static bool group_managed_prepare_focus(WGroup *ws, WRegion *reg,
 266                                         int flags, WPrepareFocusResult *res)
 267 {
 268     WMPlex *mplex=OBJ_CAST(REGION_MANAGER(ws), WMPlex);
 269     WStacking *st=group_find_stacking(ws, reg);
 270
 271     if(st==NULL)
 272         return FALSE;
 273
 274     if(mplex!=NULL){
 275         WStacking *node=mplex_find_stacking(mplex, (WRegion*)ws);
 276
 277         if(node==NULL)
 278             return FALSE;
 279
 280         return mplex_do_prepare_focus(mplex, node, st,
 281                                       flags, res);
 282     }else{
 283         if(!region_prepare_focus((WRegion*)ws, flags, res))
 284             return FALSE;
 285
 286         st=find_to_focus(ws, st, FALSE);
 287
 288         if(st==NULL)
 289             return FALSE;
 290
 291         if(ioncore_g.autoraise &&
 292            !(flags&REGION_GOTO_ENTERWINDOW) &&
 293            st->level>STACKING_LEVEL_BOTTOM){
 294             WStacking **stackingp=group_get_stackingp(ws);
 295             stacking_restack(stackingp, st, None, NULL, NULL, FALSE);
 296         }
 297
 298         res->reg=st->reg;
 299         res->flags=flags;
 300
 301         return (res->reg==reg);
 302     }
 303 }
 304
 305
 306 void group_managed_remove(WGroup *ws, WRegion *reg)
 307 {
 308     bool mcf=region_may_control_focus((WRegion*)ws);
 309     WStacking *st, *next_st=NULL;
 310     bool was_stdisp=FALSE, was_bottom=FALSE;
 311     bool was_current=FALSE;
 312
 313     st=group_find_stacking(ws, reg);
 314
 315     if(st!=NULL){
 316         if(st==ws->bottom){
 317             was_bottom=TRUE;
 318             group_do_set_bottom(ws, NULL);
 319         }
 320
 321         if(st==ws->managed_stdisp){
 322             ws->managed_stdisp=NULL;
 323             was_stdisp=TRUE;
 324         }
 325
 326         if(st==ws->current_managed){
 327             ws->current_managed=NULL;
 328             was_current=TRUE;
 329         }
 330
 331         next_st=stacking_unstack(REGION_PARENT(ws), st);
 332         UNLINK_ITEM(ws->managed_list, st, mgr_next, mgr_prev);
 333         stacking_unassoc(st);
 334         stacking_free(st);
 335     }
 336
 337     region_unset_manager(reg, (WRegion*)ws);
 338
 339     if(!OBJ_IS_BEING_DESTROYED(ws) && was_current){
 340         /* This may still potentially cause problems when focus
 341          * change is pending. Perhaps we should use region_await_focus,
 342          * if it is pointing to our child (and region_may_control_focus
 343          * fail if it is pointing somewhere else).
 344          */
 345         WStacking *stf=find_to_focus(ws, next_st, TRUE);
 346         if(stf!=NULL && mcf){
 347             region_maybewarp_now(stf->reg, FALSE);
 348         }else{
 349             ws->current_managed=stf;
 350         }
 351     }
 352 }
 353
 354
 355 void group_managed_notify(WGroup *ws, WRegion *reg, WRegionNotify how)
 356 {
 357     if(how==ioncore_g.notifies.activated ||
 358        how==ioncore_g.notifies.pseudoactivated){
 359         ws->current_managed=group_find_stacking(ws, reg);
 360     }
 361 }
 362
 363
 364 /*}}}*/
 365
 366
 367 /*{{{ Create/destroy */
 368
 369
 370 bool group_init(WGroup *ws, WWindow *par, const WFitParams *fp)
 371 {
 372     ws->current_managed=NULL;
 373     ws->managed_stdisp=NULL;
 374     ws->bottom=NULL;
 375     ws->managed_list=NULL;
 376
 377     ws->dummywin=XCreateWindow(ioncore_g.dpy, par->win,
 378                                 fp->g.x, fp->g.y, 1, 1, 0,
 379                                 CopyFromParent, InputOnly,
 380                                 CopyFromParent, 0, NULL);
 381     if(ws->dummywin==None)
 382         return FALSE;
 383
 384     region_init(&ws->reg, par, fp);
 385     region_register(&ws->reg);
 386
 387     XSelectInput(ioncore_g.dpy, ws->dummywin,
 388                  FocusChangeMask|KeyPressMask|KeyReleaseMask|
 389                  ButtonPressMask|ButtonReleaseMask);
 390     XSaveContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context,
 391                  (XPointer)ws);
 392
 393     ((WRegion*)ws)->flags|=REGION_GRAB_ON_PARENT;
 394
 395     region_add_bindmap((WRegion*)ws, ioncore_group_bindmap);
 396
 397     return TRUE;
 398 }
 399
 400
 401 WGroup *create_group(WWindow *par, const WFitParams *fp)
 402 {
 403     CREATEOBJ_IMPL(WGroup, group, (p, par, fp));
 404 }
 405
 406
 407 void group_deinit(WGroup *ws)
 408 {
 409     WGroupIterTmp tmp;
 410     WRegion *reg;
 411
 412     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg!=NULL){
 413         group_managed_remove(ws, ws->managed_stdisp->reg);
 414         assert(ws->managed_stdisp==NULL);
 415     }
 416
 417     FOR_ALL_MANAGED_BY_GROUP(ws, reg, tmp){
 418         destroy_obj((Obj*)reg);
 419     }
 420
 421     assert(ws->managed_list==NULL);
 422
 423     XDeleteContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context);
 424     XDestroyWindow(ioncore_g.dpy, ws->dummywin);
 425     ws->dummywin=None;
 426
 427     region_deinit(&ws->reg);
 428 }
 429
 430
 431
 432 bool group_rescue_clientwins(WGroup *ws, WRescueInfo *info)
 433 {
 434     WGroupIterTmp tmp;
 435
 436     group_iter_init_nostdisp(&tmp, ws);
 437
 438     return region_rescue_some_clientwins((WRegion*)ws, info,
 439                                          (WRegionIterator*)group_iter,
 440                                          &tmp);
 441 }
 442
 443
 444 static bool group_empty_for_bottom_stdisp(WGroup *ws)
 445 {
 446     WGroupIterTmp tmp;
 447     WStacking *st;
 448
 449     FOR_ALL_NODES_IN_GROUP(ws, st, tmp){
 450         if(st!=ws->bottom && st!=ws->managed_stdisp)
 451             return FALSE;
 452     }
 453
 454     return TRUE;
 455 }
 456
 457
 458 static WRegion *group_managed_disposeroot(WGroup *ws, WRegion *reg)
 459 {
 460     if(group_bottom(ws)==reg){
 461         if(group_empty_for_bottom_stdisp(ws))
 462             return region_disposeroot((WRegion*)ws);
 463     }
 464
 465     return reg;
 466 }
 467
 468
 469 /*}}}*/
 470
 471
 472 /*{{{ Bottom */
 473
 474
 475 void group_bottom_set(WGroup *grp)
 476 {
 477     CALL_DYN(group_bottom_set, grp, (grp));
 478 }
 479
 480
 481 static void group_do_set_bottom(WGroup *grp, WStacking *st)
 482 {
 483     WStacking *was=grp->bottom;
 484     WStacking *std=grp->managed_stdisp;
 485
 486     grp->bottom=st;
 487
 488     if(!OBJ_IS_BEING_DESTROYED(grp)){
 489         bool noremanage=((was==st) ||
 490                          (was==NULL && std==NULL) ||
 491                          (st!=NULL && st==std) ||
 492                          (st==NULL && was==std));
 493
 494         if(!noremanage &&
 495            (st==NULL || HAS_DYN(st->reg, region_manage_stdisp))){
 496             group_remanage_stdisp(grp);
 497         }
 498
 499         group_bottom_set(grp);
 500     }
 501 }
 502
 503
 504 /*EXTL_DOC
 505  * Sets the `bottom' of \var{ws}. The region \var{reg} must already
 506  * be managed by \var{ws}, unless \code{nil}.
 507  */
 508 EXTL_EXPORT_MEMBER
 509 bool group_set_bottom(WGroup *ws, WRegion *reg)
 510 {
 511     WStacking *st=NULL;
 512
 513     if(reg!=NULL){
 514         st=group_find_stacking(ws, reg);
 515
 516         if(st==NULL)
 517             return FALSE;
 518     }
 519
 520     group_do_set_bottom(ws, st);
 521
 522     return TRUE;
 523 }
 524
 525
 526 /*EXTL_DOC
 527  * Returns the `bottom' of \var{ws}.
 528  */
 529 EXTL_SAFE
 530 EXTL_EXPORT_MEMBER
 531 WRegion *group_bottom(WGroup *ws)
 532 {
 533     return (ws->bottom!=NULL ? ws->bottom->reg : NULL);
 534 }
 535
 536
 537 /*}}}*/
 538
 539
 540 /*{{{ Attach */
 541
 542
 543 WStacking *group_do_add_managed(WGroup *ws, WRegion *reg, int level,
 544                                 WSizePolicy szplcy)
 545 {
 546     WStacking *st=NULL;
 547     CALL_DYN_RET(st, WStacking*, group_do_add_managed, ws,
 548                  (ws, reg, level, szplcy));
 549     return st;
 550 }
 551
 552
 553 WStacking *group_do_add_managed_default(WGroup *ws, WRegion *reg, int level,
 554                                         WSizePolicy szplcy)
 555 {
 556     WStacking *st=NULL, *tmp=NULL;
 557     Window bottom=None, top=None;
 558     WStacking **stackingp=group_get_stackingp(ws);
 559     WFrame *frame;
 560
 561     if(stackingp==NULL)
 562         return NULL;
 563
 564     st=create_stacking();
 565
 566     if(st==NULL)
 567         return NULL;
 568
 569     if(!stacking_assoc(st, reg)){
 570         stacking_free(st);
 571         return  NULL;
 572     }
 573
 574     frame=OBJ_CAST(reg, WFrame);
 575     if(frame!=NULL){
 576         WFrameMode m=frame_mode(frame);
 577         if(m==FRAME_MODE_TILED || m==FRAME_MODE_TILED_ALT)
 578             frame_set_mode(frame, FRAME_MODE_FLOATING);
 579     }
 580
 581     st->level=level;
 582     st->szplcy=szplcy;
 583
 584     LINK_ITEM_FIRST(tmp, st, next, prev);
 585     stacking_weave(stackingp, &tmp, FALSE);
 586     assert(tmp==NULL);
 587
 588     LINK_ITEM(ws->managed_list, st, mgr_next, mgr_prev);
 589     region_set_manager(reg, (WRegion*)ws);
 590
 591     if(region_is_fully_mapped((WRegion*)ws))
 592         region_map(reg);
 593
 594     return st;
 595 }
 596
 597
 598 static void geom_group_to_parent(WGroup *ws, const WRectangle *g,
 599                                  WRectangle *wg)
 600 {
 601     wg->x=g->x+REGION_GEOM(ws).x;
 602     wg->y=g->y+REGION_GEOM(ws).y;
 603     wg->w=maxof(1, g->w);
 604     wg->h=maxof(1, g->h);
 605 }
 606
 607
 608 bool group_do_attach_final(WGroup *ws,
 609                            WRegion *reg,
 610                            const WGroupAttachParams *param)
 611 {
 612     WStacking *st, *stabove=NULL;
 613     WSizePolicy szplcy;
 614     WFitParams fp;
 615     WRectangle g;
 616     uint level;
 617     int weak;
 618     bool sw;
 619
 620     /* Stacking  */
 621     if(param->stack_above!=NULL)
 622         stabove=group_find_stacking(ws, param->stack_above);
 623
 624     level=(stabove!=NULL
 625            ? stabove->level
 626            : (param->level_set
 627               ? param->level
 628               : STACKING_LEVEL_NORMAL));
 629
 630     /* Fit */
 631     szplcy=(param->szplcy_set
 632             ? param->szplcy
 633             : (param->bottom
 634                ? SIZEPOLICY_FULL_EXACT
 635                : SIZEPOLICY_UNCONSTRAINED));
 636
 637     weak=(param->geom_weak_set
 638           ? param->geom_weak
 639           : (param->geom_set
 640              ? 0
 641              : REGION_RQGEOM_WEAK_ALL));
 642
 643     if(param->geom_set)
 644         geom_group_to_parent(ws, &param->geom, &g);
 645     else
 646         g=REGION_GEOM(reg);
 647
 648     /* If the requested geometry does not overlap the workspaces's geometry,
 649      * position request is never honoured.
 650      */
 651     if((g.x+g.w<=REGION_GEOM(ws).x) ||
 652        (g.x>=REGION_GEOM(ws).x+REGION_GEOM(ws).w)){
 653         weak|=REGION_RQGEOM_WEAK_X;
 654     }
 655
 656     if((g.y+g.h<=REGION_GEOM(ws).y) ||
 657        (g.y>=REGION_GEOM(ws).y+REGION_GEOM(ws).h)){
 658         weak|=REGION_RQGEOM_WEAK_Y;
 659     }
 660
 661     if(weak&(REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y) &&
 662         (szplcy==SIZEPOLICY_UNCONSTRAINED ||
 663          szplcy==SIZEPOLICY_FREE ||
 664          szplcy==SIZEPOLICY_FREE_GLUE /* without flags */)){
 665         /* TODO: use 'weak'? */
 666         group_calc_placement(ws, level, &g);
 667     }
 668
 669     fp.g=REGION_GEOM(ws);
 670     fp.mode=REGION_FIT_EXACT;
 671
 672     sizepolicy(&szplcy, reg, &g, weak, &fp);
 673
 674     if(rectangle_compare(&fp.g, &REGION_GEOM(reg))!=RECTANGLE_SAME)
 675         region_fitrep(reg, NULL, &fp);
 676
 677     /* Add */
 678     st=group_do_add_managed(ws, reg, level, szplcy);
 679
 680     if(st==NULL)
 681         return FALSE;
 682
 683     if(stabove!=NULL)
 684         st->above=stabove;
 685
 686     if(param->bottom)
 687         group_do_set_bottom(ws, st);
 688
 689     /* Focus */
 690     sw=(param->switchto_set ? param->switchto : ioncore_g.switchto_new);
 691
 692     if(sw || st->level>=STACKING_LEVEL_MODAL1){
 693         WStacking *stf=find_to_focus(ws, st, FALSE);
 694
 695         if(stf==st){
 696             /* Ok, the new region can be focused */
 697             group_refocus_(ws, stf);
 698         }
 699     }
 700
 701     return TRUE;
 702 }
 703
 704
 705 WRegion *group_do_attach(WGroup *ws,
 706                          /*const*/ WGroupAttachParams *param,
 707                          WRegionAttachData *data)
 708 {
 709     WFitParams fp;
 710     WWindow *par;
 711     WRegion *reg;
 712
 713     if(ws->bottom!=NULL && param->bottom){
 714         warn(TR("'bottom' already set."));
 715         return NULL;
 716     }
 717
 718     par=REGION_PARENT(ws);
 719     assert(par!=NULL);
 720
 721     if(param->geom_set){
 722         geom_group_to_parent(ws, &param->geom, &fp.g);
 723         fp.mode=REGION_FIT_EXACT;
 724     }else{
 725         fp.g=REGION_GEOM(ws);
 726         fp.mode=REGION_FIT_BOUNDS|REGION_FIT_WHATEVER;
 727     }
 728
 729     return region_attach_helper((WRegion*) ws, par, &fp,
 730                                 (WRegionDoAttachFn*)group_do_attach_final,
 731                                 /*(const WRegionAttachParams*)*/param, data);
 732     /*                            ^^^^ doesn't seem to work. */
 733 }
 734
 735
 736 static void get_params(WGroup *ws, ExtlTab tab, WGroupAttachParams *par)
 737 {
 738     int tmp;
 739     char *tmps;
 740     ExtlTab g;
 741
 742     par->switchto_set=0;
 743     par->level_set=0;
 744     par->szplcy_set=0;
 745     par->geom_set=0;
 746     par->bottom=0;
 747
 748     if(extl_table_is_bool_set(tab, "bottom")){
 749         par->level=STACKING_LEVEL_BOTTOM;
 750         par->level_set=1;
 751         par->bottom=1;
 752     }
 753
 754     if(extl_table_gets_i(tab, "level", &tmp)){
 755         if(tmp>=0){
 756             par->level_set=STACKING_LEVEL_NORMAL;
 757             par->level=tmp;
 758         }
 759     }
 760
 761     if(!par->level_set && extl_table_is_bool_set(tab, "modal")){
 762         par->level=STACKING_LEVEL_MODAL1;
 763         par->level_set=1;
 764     }
 765
 766     if(extl_table_is_bool_set(tab, "switchto"))
 767         par->switchto=1;
 768
 769     if(extl_table_gets_i(tab, "sizepolicy", &tmp)){
 770         par->szplcy_set=1;
 771         par->szplcy=tmp;
 772     }else if(extl_table_gets_s(tab, "sizepolicy", &tmps)){
 773         if(string2sizepolicy(tmps, &par->szplcy))
 774             par->szplcy_set=1;
 775         free(tmps);
 776     }
 777
 778     if(extl_table_gets_t(tab, "geom", &g)){
 779         int n=0;
 780
 781         if(extl_table_gets_i(g, "x", &(par->geom.x)))
 782             n++;
 783         if(extl_table_gets_i(g, "y", &(par->geom.y)))
 784             n++;
 785         if(extl_table_gets_i(g, "w", &(par->geom.w)))
 786             n++;
 787         if(extl_table_gets_i(g, "h", &(par->geom.h)))
 788             n++;
 789
 790         if(n==4)
 791             par->geom_set=1;
 792
 793         extl_unref_table(g);
 794     }
 795 }
 796
 797
 798
 799 /*EXTL_DOC
 800  * Attach and reparent existing region \var{reg} to \var{ws}.
 801  * The table \var{param} may contain the fields \var{index} and
 802  * \var{switchto} that are interpreted as for \fnref{WMPlex.attach_new}.
 803  */
 804 EXTL_EXPORT_MEMBER
 805 WRegion *group_attach(WGroup *ws, WRegion *reg, ExtlTab param)
 806 {
 807     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 808     WRegionAttachData data;
 809
 810     if(reg==NULL)
 811         return NULL;
 812
 813     get_params(ws, param, &par);
 814
 815     data.type=REGION_ATTACH_REPARENT;
 816     data.u.reg=reg;
 817
 818     return group_do_attach(ws, &par, &data);
 819 }
 820
 821
 822 /*EXTL_DOC
 823  * Create a new region to be managed by \var{ws}. At least the following
 824  * fields in \var{param} are understood:
 825  *
 826  * \begin{tabularx}{\linewidth}{lX}
 827  *  \tabhead{Field & Description}
 828  *  \var{type} & (string) Class of the object to be created. Mandatory. \\
 829  *  \var{name} & (string) Name of the object to be created. \\
 830  *  \var{switchto} & (boolean) Should the region be switched to? \\
 831  *  \var{level} & (integer) Stacking level; default is 1. \\
 832  *  \var{modal} & (boolean) Make object modal; ignored if level is set. \\
 833  *  \var{sizepolicy} & (string) Size policy; see Section \ref{sec:sizepolicies}. \\
 834  *  \var{bottom} & (boolean) Mark the attached region as the
 835  *                 ``bottom'' of \var{ws}. \\
 836  * \end{tabularx}
 837  *
 838  * In addition parameters to the region to be created are passed in this
 839  * same table.
 840  */
 841 EXTL_EXPORT_MEMBER
 842 WRegion *group_attach_new(WGroup *ws, ExtlTab param)
 843 {
 844     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 845     WRegionAttachData data;
 846
 847     get_params(ws, param, &par);
 848
 849     data.type=REGION_ATTACH_LOAD;
 850     data.u.tab=param;
 851
 852     return group_do_attach(ws, &par, &data);
 853 }
 854
 855
 856 /*}}}*/
 857
 858
 859 /*{{{ Status display support */
 860
 861
 862 static int stdisp_szplcy(const WMPlexSTDispInfo *di, WRegion *stdisp)
 863 {
 864     int pos=di->pos;
 865
 866     if(di->fullsize){
 867         if(region_orientation(stdisp)==REGION_ORIENTATION_VERTICAL){
 868             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_BL)
 869                 return SIZEPOLICY_STRETCH_LEFT;
 870             else
 871                 return SIZEPOLICY_STRETCH_RIGHT;
 872         }else{
 873             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_TR)
 874                 return SIZEPOLICY_STRETCH_TOP;
 875             else
 876                 return SIZEPOLICY_STRETCH_BOTTOM;
 877         }
 878     }else{
 879         if(pos==MPLEX_STDISP_TL)
 880             return SIZEPOLICY_GRAVITY_NORTHWEST;
 881         else if(pos==MPLEX_STDISP_BL)
 882             return SIZEPOLICY_GRAVITY_SOUTHWEST;
 883         else if(pos==MPLEX_STDISP_TR)
 884             return SIZEPOLICY_GRAVITY_NORTHEAST;
 885         else /*if(pos=MPLEX_STDISP_BR)*/
 886             return SIZEPOLICY_GRAVITY_SOUTHEAST;
 887     }
 888 }
 889
 890
 891 void group_manage_stdisp(WGroup *ws, WRegion *stdisp,
 892                          const WMPlexSTDispInfo *di)
 893 {
 894     WFitParams fp;
 895     uint szplcy;
 896     WRegion *b=(ws->bottom==NULL ? NULL : ws->bottom->reg);
 897
 898     /* Check if 'bottom' wants to manage the stdisp. */
 899     if(b!=NULL
 900        && !OBJ_IS_BEING_DESTROYED(b)
 901        && HAS_DYN(b, region_manage_stdisp)){
 902         region_manage_stdisp(b, stdisp, di);
 903         if(REGION_MANAGER(stdisp)==b)
 904             return;
 905     }
 906
 907     /* No. */
 908
 909     szplcy=stdisp_szplcy(di, stdisp)|SIZEPOLICY_SHRUNK;
 910
 911     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg==stdisp){
 912         if(ws->managed_stdisp->szplcy==szplcy)
 913             return;
 914         ws->managed_stdisp->szplcy=szplcy;
 915     }else{
 916         region_detach_manager(stdisp);
 917         ws->managed_stdisp=group_do_add_managed(ws, stdisp,
 918                                                 STACKING_LEVEL_ON_TOP,
 919                                                 szplcy);
 920     }
 921
 922     fp.g=REGION_GEOM(ws);
 923     sizepolicy(&ws->managed_stdisp->szplcy, stdisp, NULL, 0, &fp);
 924
 925     region_fitrep(stdisp, NULL, &fp);
 926 }
 927
 928
 929 static void group_remanage_stdisp(WGroup *ws)
 930 {
 931     WMPlex *mplex=OBJ_CAST(REGION_MANAGER(ws), WMPlex);
 932
 933     if(mplex!=NULL &&
 934        mplex->mx_current!=NULL &&
 935        mplex->mx_current->st->reg==(WRegion*)ws){
 936         mplex_remanage_stdisp(mplex);
 937     }
 938 }
 939
 940
 941 /*}}}*/
 942
 943
 944 /*{{{ Geometry requests */
 945
 946
 947 void group_managed_rqgeom(WGroup *ws, WRegion *reg,
 948                           const WRQGeomParams *rq,
 949                           WRectangle *geomret)
 950 {
 951     WFitParams fp;
 952     WStacking *st;
 953
 954     st=group_find_stacking(ws, reg);
 955
 956     if(st==NULL){
 957         fp.g=rq->geom;
 958         fp.mode=REGION_FIT_EXACT;
 959     }else{
 960         fp.g=REGION_GEOM(ws);
 961         sizepolicy(&st->szplcy, reg, &rq->geom, rq->flags, &fp);
 962     }
 963
 964     if(geomret!=NULL)
 965         *geomret=fp.g;
 966
 967     if(!(rq->flags&REGION_RQGEOM_TRYONLY))
 968         region_fitrep(reg, NULL, &fp);
 969 }
 970
 971
 972 void group_managed_rqgeom_absolute(WGroup *grp, WRegion *sub,
 973                                    const WRQGeomParams *rq,
 974                                    WRectangle *geomret)
 975 {
 976     if(grp->bottom!=NULL && grp->bottom->reg==sub){
 977         region_rqgeom((WRegion*)grp, rq, geomret);
 978         if(!(rq->flags&REGION_RQGEOM_TRYONLY) && geomret!=NULL)
 979             *geomret=REGION_GEOM(sub);
 980     }else{
 981         WRQGeomParams rq2=*rq;
 982         rq2.flags&=~REGION_RQGEOM_ABSOLUTE;
 983
 984         region_managed_rqgeom((WRegion*)grp, sub, &rq2, geomret);
 985     }
 986 }
 987
 988
 989 /*}}}*/
 990
 991
 992 /*{{{ Navigation */
 993
 994
 995 static WStacking *nxt(WGroup *ws, WStacking *st, bool wrap)
 996 {
 997     return (st->mgr_next!=NULL
 998             ? st->mgr_next
 999             : (wrap ? ws->managed_list : NULL));
1000 }
1001
1002
1003 static WStacking *prv(WGroup *ws, WStacking *st, bool wrap)
1004 {
1005     return (st!=ws->managed_list
1006             ? st->mgr_prev
1007             : (wrap ? st->mgr_prev : NULL));
1008 }
1009
1010
1011 typedef WStacking *NxtFn(WGroup *ws, WStacking *st, bool wrap);
1012
1013
1014 static bool focusable(WGroup *ws, WStacking *st, uint min_level)
1015 {
1016     return (st->reg!=NULL
1017             && REGION_IS_MAPPED(st->reg)
1018             && !(st->reg->flags&REGION_SKIP_FOCUS)
1019             && st->level>=min_level);
1020 }
1021
1022
1023 static WStacking *do_get_next(WGroup *ws, WStacking *sti,
1024                               NxtFn *fn, bool wrap, bool sti_ok)
1025 {
1026     WStacking *st, *stacking;
1027     uint min_level=0;
1028
1029     stacking=group_get_stacking(ws);
1030
1031     if(stacking!=NULL)
1032         min_level=stacking_min_level_mapped(stacking);
1033
1034     st=sti;
1035     while(1){
1036         st=fn(ws, st, wrap);
1037
1038         if(st==NULL || st==sti)
1039             break;
1040
1041         if(focusable(ws, st, min_level))
1042             return st;
1043     }
1044
1045     if(sti_ok && focusable(ws, sti, min_level))
1046         return sti;
1047
1048     return NULL;
1049 }
1050
1051
1052 static WStacking *group_do_navi_first(WGroup *ws, WRegionNavi nh)
1053 {
1054     WStacking *lst=ws->managed_list;
1055
1056     if(lst==NULL)
1057         return NULL;
1058
1059     if(nh==REGION_NAVI_ANY &&
1060        ws->current_managed!=NULL &&
1061        ws->current_managed->reg!=NULL){
1062         return ws->current_managed;
1063     }
1064
1065     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1066        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1067         return do_get_next(ws, lst, prv, TRUE, TRUE);
1068     }else{
1069         return do_get_next(ws, lst->mgr_prev, nxt, TRUE, TRUE);
1070     }
1071 }
1072
1073
1074 static WRegion *group_navi_first(WGroup *ws, WRegionNavi nh,
1075                                  WRegionNaviData *data)
1076 {
1077     WStacking *st=group_do_navi_first(ws, nh);
1078
1079     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1080 }
1081
1082
1083 static WStacking *group_do_navi_next(WGroup *ws, WStacking *st,
1084                                      WRegionNavi nh, bool wrap)
1085 {
1086     if(st==NULL)
1087         return group_do_navi_first(ws, nh);
1088
1089     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1090        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1091         return do_get_next(ws, st, nxt, wrap, FALSE);
1092     }else{
1093         return do_get_next(ws, st, prv, wrap, FALSE);
1094     }
1095 }
1096
1097 static WRegion *group_navi_next(WGroup *ws, WRegion *reg,
1098                                 WRegionNavi nh, WRegionNaviData *data)
1099 {
1100     WStacking *st=group_find_stacking(ws, reg);
1101
1102     st=group_do_navi_next(ws, st, nh, FALSE);
1103
1104     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1105 }
1106
1107
1108 /*}}}*/
1109
1110
1111 /*{{{ Stacking */
1112
1113
1114 /*
1115  * Note: Managed objects are considered to be stacked separately from the
1116  * group, slightly violating expectations.
1117  */
1118
1119 void group_stacking(WGroup *ws, Window *bottomret, Window *topret)
1120 {
1121     Window win=region_xwindow((WRegion*)ws);
1122
1123     *bottomret=win;
1124     *topret=win;
1125 }
1126
1127
1128 void group_restack(WGroup *ws, Window other, int mode)
1129 {
1130     Window win;
1131
1132     win=region_xwindow((WRegion*)ws);
1133     if(win!=None){
1134         xwindow_restack(win, other, mode);
1135         other=win;
1136         mode=Above;
1137     }
1138 }
1139
1140
1141 WStacking *group_find_stacking(WGroup *ws, WRegion *r)
1142 {
1143     if(r==NULL || REGION_MANAGER(r)!=(WRegion*)ws)
1144         return NULL;
1145
1146     return ioncore_find_stacking(r);
1147 }
1148
1149
1150 static WStacking *find_stacking_if_not_on_ws(WGroup *ws, Window w)
1151 {
1152     WRegion *r=xwindow_region_of(w);
1153     WStacking *st=NULL;
1154
1155     while(r!=NULL){
1156         if(REGION_MANAGER(r)==(WRegion*)ws)
1157             break;
1158         st=group_find_stacking(ws, r);
1159         if(st!=NULL)
1160             break;
1161         r=REGION_MANAGER(r);
1162     }
1163
1164     return st;
1165 }
1166
1167
1168 bool group_managed_rqorder(WGroup *grp, WRegion *reg, WRegionOrder order)
1169 {
1170     WStacking **stackingp=group_get_stackingp(grp);
1171     WStacking *st;
1172
1173     if(stackingp==NULL || *stackingp==NULL)
1174         return FALSE;
1175
1176     st=group_find_stacking(grp, reg);
1177
1178     if(st==NULL)
1179         return FALSE;
1180
1181     stacking_restack(stackingp, st, None, NULL, NULL,
1182                      (order!=REGION_ORDER_FRONT));
1183
1184     return TRUE;
1185 }
1186
1187
1188 /*}}}*/
1189
1190
1191 /*{{{ Misc. */
1192
1193
1194 /*EXTL_DOC
1195  * Iterate over managed regions of \var{ws} until \var{iterfn} returns
1196  * \code{false}.
1197  * The function itself returns \code{true} if it reaches the end of list
1198  * without this happening.
1199  */
1200 EXTL_SAFE
1201 EXTL_EXPORT_MEMBER
1202 bool group_managed_i(WGroup *ws, ExtlFn iterfn)
1203 {
1204     WGroupIterTmp tmp;
1205     group_iter_init(&tmp, ws);
1206
1207     return extl_iter_objlist_(iterfn, (ObjIterator*)group_iter, &tmp);
1208 }
1209
1210
1211 WRegion* group_current(WGroup *ws)
1212 {
1213     return (ws->current_managed!=NULL ? ws->current_managed->reg : NULL);
1214 }
1215
1216
1217 void group_size_hints(WGroup *ws, WSizeHints *hints_ret)
1218 {
1219     if(ws->bottom==NULL || ws->bottom->reg==NULL){
1220         sizehints_clear(hints_ret);
1221     }else{
1222         region_size_hints(ws->bottom->reg, hints_ret);
1223         hints_ret->no_constrain=TRUE;
1224     }
1225 }
1226
1227
1228 Window group_xwindow(const WGroup *ws)
1229 {
1230     return ws->dummywin;
1231 }
1232
1233
1234 /*EXTL_DOC
1235  * Returns the group of \var{reg}, if it is managed by one,
1236  * and \var{reg} itself otherwise.
1237  */
1238 /*EXTL_EXPORT_MEMBER
1239 WRegion *region_group_of(WRegion *reg)
1240 {
1241     WRegion *mgr=REGION_MANAGER(reg);
1242
1243     return (OBJ_IS(mgr, WGroup) ? mgr : reg);
1244 }*/
1245
1246
1247 /*EXTL_DOC
1248  * Returns the group of \var{reg}, if \var{reg} is its bottom,
1249  * and \var{reg} itself otherwise.
1250  */
1251 EXTL_EXPORT_MEMBER
1252 WRegion *region_groupleader_of(WRegion *reg)
1253 {
1254     WGroup *grp=REGION_MANAGER_CHK(reg, WGroup);
1255
1256     return ((grp!=NULL && group_bottom(grp)==reg)
1257             ? (WRegion*)grp
1258             : reg);
1259 }
1260
1261
1262 /*}}}*/
1263
1264
1265 /*{{{ Save/load */
1266
1267
1268 static ExtlTab group_get_configuration(WGroup *ws)
1269 {
1270     ExtlTab tab, mgds, subtab, g;
1271     WStacking *st;
1272     WGroupIterTmp tmp;
1273     WMPlex *par;
1274     int n=0;
1275     WRectangle tmpg;
1276
1277     tab=region_get_base_configuration((WRegion*)ws);
1278
1279     mgds=extl_create_table();
1280
1281     extl_table_sets_t(tab, "managed", mgds);
1282
1283     /* TODO: stacking order messed up */
1284
1285     FOR_ALL_NODES_IN_GROUP(ws, st, tmp){
1286         if(st->reg==NULL)
1287             continue;
1288
1289         subtab=region_get_configuration(st->reg);
1290
1291         if(subtab!=extl_table_none()){
1292             extl_table_sets_s(subtab, "sizepolicy",
1293                               sizepolicy2string(st->szplcy));
1294             extl_table_sets_i(subtab, "level", st->level);
1295
1296             tmpg=REGION_GEOM(st->reg);
1297             tmpg.x-=REGION_GEOM(ws).x;
1298             tmpg.y-=REGION_GEOM(ws).y;
1299
1300             g=extl_table_from_rectangle(&tmpg);
1301             extl_table_sets_t(subtab, "geom", g);
1302             extl_unref_table(g);
1303
1304             if(ws->bottom==st)
1305                 extl_table_sets_b(subtab, "bottom", TRUE);
1306
1307             extl_table_seti_t(mgds, ++n, subtab);
1308             extl_unref_table(subtab);
1309         }
1310     }
1311
1312     extl_unref_table(mgds);
1313
1314     return tab;
1315 }
1316
1317
1318 void group_do_load(WGroup *ws, ExtlTab tab)
1319 {
1320     ExtlTab substab, subtab;
1321     int i, n;
1322
1323     if(extl_table_gets_t(tab, "managed", &substab)){
1324         n=extl_table_get_n(substab);
1325         for(i=1; i<=n; i++){
1326             if(extl_table_geti_t(substab, i, &subtab)){
1327                 group_attach_new(ws, subtab);
1328                 extl_unref_table(subtab);
1329             }
1330         }
1331
1332         extl_unref_table(substab);
1333     }
1334 }
1335
1336
1337 WRegion *group_load(WWindow *par, const WFitParams *fp, ExtlTab tab)
1338 {
1339     WGroup *ws;
1340
1341     ws=create_group(par, fp);
1342
1343     if(ws==NULL)
1344         return NULL;
1345
1346     group_do_load(ws, tab);
1347
1348     return (WRegion*)ws;
1349 }
1350
1351
1352 /*}}}*/
1353
1354
1355 /*{{{ Dynamic function table and class implementation */
1356
1357
1358 static DynFunTab group_dynfuntab[]={
1359     {(DynFun*)region_fitrep,
1360      (DynFun*)group_fitrep},
1361
1362     {region_map,
1363      group_map},
1364
1365     {region_unmap,
1366      group_unmap},
1367
1368     {(DynFun*)region_managed_prepare_focus,
1369      (DynFun*)group_managed_prepare_focus},
1370
1371     {region_do_set_focus,
1372      group_do_set_focus},
1373
1374     {region_managed_notify,
1375      group_managed_notify},
1376
1377     {region_managed_remove,
1378      group_managed_remove},
1379
1380     {(DynFun*)region_get_configuration,
1381      (DynFun*)group_get_configuration},
1382
1383     {(DynFun*)region_managed_disposeroot,
1384      (DynFun*)group_managed_disposeroot},
1385
1386     {(DynFun*)region_current,
1387      (DynFun*)group_current},
1388
1389     {(DynFun*)region_rescue_clientwins,
1390      (DynFun*)group_rescue_clientwins},
1391
1392     {region_restack,
1393      group_restack},
1394
1395     {region_stacking,
1396      group_stacking},
1397
1398     {(DynFun*)region_managed_get_pholder,
1399      (DynFun*)group_managed_get_pholder},
1400
1401     {region_managed_rqgeom,
1402      group_managed_rqgeom},
1403
1404     {region_managed_rqgeom_absolute,
1405      group_managed_rqgeom_absolute},
1406
1407     {(DynFun*)group_do_add_managed,
1408      (DynFun*)group_do_add_managed_default},
1409
1410     {region_size_hints,
1411      group_size_hints},
1412
1413     {(DynFun*)region_xwindow,
1414      (DynFun*)group_xwindow},
1415
1416     {(DynFun*)region_navi_first,
1417      (DynFun*)group_navi_first},
1418
1419     {(DynFun*)region_navi_next,
1420      (DynFun*)group_navi_next},
1421
1422     {(DynFun*)region_managed_rqorder,
1423      (DynFun*)group_managed_rqorder},
1424
1425     END_DYNFUNTAB
1426 };
1427
1428
1429 EXTL_EXPORT
1430 IMPLCLASS(WGroup, WRegion, group_deinit, group_dynfuntab);
1431
1432
1433 /*}}}*/
1434