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         WFrameMode m=frame_mode(frame);
 535         if(m==FRAME_MODE_TILED || m==FRAME_MODE_TILED_ALT)
 536             frame_set_mode(frame, FRAME_MODE_FLOATING);
 537     }
 538
 539     st->level=level;
 540     st->szplcy=szplcy;
 541
 542     LINK_ITEM_FIRST(tmp, st, next, prev);
 543     stacking_weave(stackingp, &tmp, FALSE);
 544     assert(tmp==NULL);
 545
 546     LINK_ITEM(ws->managed_list, st, mgr_next, mgr_prev);
 547     region_set_manager(reg, (WRegion*)ws);
 548
 549     if(region_is_fully_mapped((WRegion*)ws))
 550         region_map(reg);
 551
 552     return st;
 553 }
 554
 555
 556 static void geom_group_to_parent(WGroup *ws, const WRectangle *g,
 557                                  WRectangle *wg)
 558 {
 559     wg->x=g->x+REGION_GEOM(ws).x;
 560     wg->y=g->y+REGION_GEOM(ws).y;
 561     wg->w=maxof(1, g->w);
 562     wg->h=maxof(1, g->h);
 563 }
 564
 565
 566 static int group_must_focus(WGroup *ws, WStacking *st)
 567 {
 568     WStacking *stacking=group_get_stacking(ws);
 569
 570     return (stacking!=NULL && stacking_must_focus(stacking, st));
 571 }
 572
 573
 574 bool group_do_attach_final(WGroup *ws,
 575                            WRegion *reg,
 576                            const WGroupAttachParams *param)
 577 {
 578     WStacking *st, *stabove=NULL;
 579     WSizePolicy szplcy;
 580     WFitParams fp;
 581     WRectangle g;
 582     uint level;
 583     int weak;
 584     bool sw;
 585
 586     /* Stacking  */
 587     if(param->stack_above!=NULL)
 588         stabove=group_find_stacking(ws, param->stack_above);
 589
 590     level=(stabove!=NULL
 591            ? stabove->level
 592            : (param->level_set
 593               ? param->level
 594               : STACKING_LEVEL_NORMAL));
 595
 596     /* Fit */
 597     szplcy=(param->szplcy_set
 598             ? param->szplcy
 599             : (param->bottom
 600                ? SIZEPOLICY_FULL_EXACT
 601                : SIZEPOLICY_UNCONSTRAINED));
 602
 603     weak=(param->geom_weak_set
 604           ? param->geom_weak
 605           : (param->geom_set
 606              ? 0
 607              : REGION_RQGEOM_WEAK_ALL));
 608
 609     if(param->geom_set)
 610         geom_group_to_parent(ws, &param->geom, &g);
 611     else
 612         g=REGION_GEOM(reg);
 613
 614     /* If the requested geometry does not overlap the workspaces's geometry,
 615      * position request is never honoured.
 616      */
 617     if((g.x+g.w<=REGION_GEOM(ws).x) ||
 618        (g.x>=REGION_GEOM(ws).x+REGION_GEOM(ws).w)){
 619         weak|=REGION_RQGEOM_WEAK_X;
 620     }
 621
 622     if((g.y+g.h<=REGION_GEOM(ws).y) ||
 623        (g.y>=REGION_GEOM(ws).y+REGION_GEOM(ws).h)){
 624         weak|=REGION_RQGEOM_WEAK_Y;
 625     }
 626
 627     if(weak&(REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y) &&
 628         (szplcy==SIZEPOLICY_UNCONSTRAINED ||
 629          szplcy==SIZEPOLICY_FREE ||
 630          szplcy==SIZEPOLICY_FREE_GLUE /* without flags */)){
 631         /* TODO: use 'weak'? */
 632         group_calc_placement(ws, level, &g);
 633     }
 634
 635     fp.g=REGION_GEOM(ws);
 636     fp.mode=REGION_FIT_EXACT;
 637
 638     sizepolicy(&szplcy, reg, &g, weak, &fp);
 639
 640     if(rectangle_compare(&fp.g, &REGION_GEOM(reg))!=RECTANGLE_SAME)
 641         region_fitrep(reg, NULL, &fp);
 642
 643     /* Add */
 644     st=group_do_add_managed(ws, reg, level, szplcy);
 645
 646     if(st==NULL)
 647         return FALSE;
 648
 649     if(stabove!=NULL)
 650         st->above=stabove;
 651
 652     if(param->bottom)
 653         group_do_set_bottom(ws, st);
 654
 655     /* Focus */
 656     sw=((param->switchto_set ? param->switchto : ioncore_g.switchto_new)
 657         ? st==find_to_focus(ws, st, FALSE)
 658         : group_must_focus(ws, st));
 659
 660     if(sw){
 661         if(region_may_control_focus((WRegion*)ws))
 662             region_set_focus(st->reg);
 663         else
 664             ws->current_managed=st;
 665     }
 666
 667     return TRUE;
 668 }
 669
 670
 671 WRegion *group_do_attach(WGroup *ws,
 672                          /*const*/ WGroupAttachParams *param,
 673                          WRegionAttachData *data)
 674 {
 675     WFitParams fp;
 676     WWindow *par;
 677     WRegion *reg;
 678
 679     if(ws->bottom!=NULL && param->bottom){
 680         warn(TR("'bottom' already set."));
 681         return NULL;
 682     }
 683
 684     par=REGION_PARENT(ws);
 685     assert(par!=NULL);
 686
 687     if(param->geom_set){
 688         geom_group_to_parent(ws, &param->geom, &fp.g);
 689         fp.mode=REGION_FIT_EXACT;
 690     }else{
 691         fp.g=REGION_GEOM(ws);
 692         fp.mode=REGION_FIT_BOUNDS|REGION_FIT_WHATEVER;
 693     }
 694
 695     return region_attach_helper((WRegion*) ws, par, &fp,
 696                                 (WRegionDoAttachFn*)group_do_attach_final,
 697                                 /*(const WRegionAttachParams*)*/param, data);
 698     /*                            ^^^^ doesn't seem to work. */
 699 }
 700
 701
 702 void group_get_attach_params(WGroup *ws, ExtlTab tab,
 703                              WGroupAttachParams *par)
 704 {
 705     int tmp;
 706     bool tmpb;
 707     char *tmps;
 708     ExtlTab g;
 709
 710     par->switchto_set=0;
 711     par->level_set=0;
 712     par->szplcy_set=0;
 713     par->geom_set=0;
 714     par->bottom=0;
 715
 716     if(extl_table_is_bool_set(tab, "bottom")){
 717         par->level=STACKING_LEVEL_BOTTOM;
 718         par->level_set=1;
 719         par->bottom=1;
 720     }
 721
 722     if(extl_table_gets_i(tab, "level", &tmp)){
 723         if(tmp>=0){
 724             par->level_set=1;
 725             par->level=tmp;
 726         }
 727     }
 728
 729     if(!par->level_set && extl_table_is_bool_set(tab, "modal")){
 730         par->level=STACKING_LEVEL_MODAL1;
 731         par->level_set=1;
 732     }
 733
 734     if(extl_table_gets_b(tab, "switchto", &tmpb)){
 735         par->switchto=(tmpb!=0);
 736         par->switchto_set=1;
 737     }
 738
 739     if(extl_table_gets_i(tab, "sizepolicy", &tmp)){
 740         par->szplcy_set=1;
 741         par->szplcy=tmp;
 742     }else if(extl_table_gets_s(tab, "sizepolicy", &tmps)){
 743         if(string2sizepolicy(tmps, &par->szplcy))
 744             par->szplcy_set=1;
 745         free(tmps);
 746     }
 747
 748     if(extl_table_gets_t(tab, "geom", &g)){
 749         int n=0;
 750
 751         if(extl_table_gets_i(g, "x", &(par->geom.x)))
 752             n++;
 753         if(extl_table_gets_i(g, "y", &(par->geom.y)))
 754             n++;
 755         if(extl_table_gets_i(g, "w", &(par->geom.w)))
 756             n++;
 757         if(extl_table_gets_i(g, "h", &(par->geom.h)))
 758             n++;
 759
 760         if(n==4)
 761             par->geom_set=1;
 762
 763         extl_unref_table(g);
 764     }
 765 }
 766
 767
 768
 769 /*EXTL_DOC
 770  * Attach and reparent existing region \var{reg} to \var{ws}.
 771  * The table \var{param} may contain the fields \var{index} and
 772  * \var{switchto} that are interpreted as for \fnref{WMPlex.attach_new}.
 773  */
 774 EXTL_EXPORT_MEMBER
 775 WRegion *group_attach(WGroup *ws, WRegion *reg, ExtlTab param)
 776 {
 777     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 778     WRegionAttachData data;
 779
 780     if(reg==NULL)
 781         return NULL;
 782
 783     group_get_attach_params(ws, param, &par);
 784
 785     data.type=REGION_ATTACH_REPARENT;
 786     data.u.reg=reg;
 787
 788     return group_do_attach(ws, &par, &data);
 789 }
 790
 791
 792 /*EXTL_DOC
 793  * Create a new region to be managed by \var{ws}. At least the following
 794  * fields in \var{param} are understood:
 795  *
 796  * \begin{tabularx}{\linewidth}{lX}
 797  *  \tabhead{Field & Description}
 798  *  \var{type} & (string) Class of the object to be created. Mandatory. \\
 799  *  \var{name} & (string) Name of the object to be created. \\
 800  *  \var{switchto} & (boolean) Should the region be switched to? \\
 801  *  \var{level} & (integer) Stacking level; default is 1. \\
 802  *  \var{modal} & (boolean) Make object modal; ignored if level is set. \\
 803  *  \var{sizepolicy} & (string) Size policy; see Section \ref{sec:sizepolicies}. \\
 804  *  \var{bottom} & (boolean) Mark the attached region as the
 805  *                 ``bottom'' of \var{ws}. \\
 806  * \end{tabularx}
 807  *
 808  * In addition parameters to the region to be created are passed in this
 809  * same table.
 810  */
 811 EXTL_EXPORT_MEMBER
 812 WRegion *group_attach_new(WGroup *ws, ExtlTab param)
 813 {
 814     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 815     WRegionAttachData data;
 816
 817     group_get_attach_params(ws, param, &par);
 818
 819     data.type=REGION_ATTACH_LOAD;
 820     data.u.tab=param;
 821
 822     return group_do_attach(ws, &par, &data);
 823 }
 824
 825
 826 /*}}}*/
 827
 828
 829 /*{{{ Status display support */
 830
 831
 832 static int stdisp_szplcy(const WMPlexSTDispInfo *di, WRegion *stdisp)
 833 {
 834     int pos=di->pos;
 835     int policy=0, gravity=0;
 836
 837     if(di->fullsize){
 838         if(region_orientation(stdisp)==REGION_ORIENTATION_VERTICAL){
 839             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_BL)
 840                 policy=SIZEPOLICY_STRETCH_LEFT;
 841             else
 842                 policy=SIZEPOLICY_STRETCH_RIGHT;
 843         }else{
 844             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_TR)
 845                 policy=SIZEPOLICY_STRETCH_TOP;
 846             else
 847                 policy=SIZEPOLICY_STRETCH_BOTTOM;
 848         }
 849     }else{
 850         policy=SIZEPOLICY_GRAVITY;
 851     }
 852
 853     if(pos==MPLEX_STDISP_TL)
 854         gravity=SIZEPOLICY_VERT_TOP|SIZEPOLICY_HORIZ_LEFT;
 855     else if(pos==MPLEX_STDISP_BL)
 856         gravity=SIZEPOLICY_VERT_BOTTOM|SIZEPOLICY_HORIZ_LEFT;
 857     else if(pos==MPLEX_STDISP_TR)
 858         gravity=SIZEPOLICY_VERT_TOP|SIZEPOLICY_HORIZ_RIGHT;
 859     else /*if(pos=MPLEX_STDISP_BR)*/
 860         gravity=SIZEPOLICY_VERT_BOTTOM|SIZEPOLICY_HORIZ_RIGHT;
 861
 862     return (policy|gravity);
 863 }
 864
 865
 866 void group_manage_stdisp(WGroup *ws, WRegion *stdisp,
 867                          const WMPlexSTDispInfo *di)
 868 {
 869     WFitParams fp;
 870     uint szplcy;
 871     WRegion *b=(ws->bottom==NULL ? NULL : ws->bottom->reg);
 872
 873     /* Check if 'bottom' wants to manage the stdisp. */
 874     if(b!=NULL
 875        && !OBJ_IS_BEING_DESTROYED(b)
 876        && HAS_DYN(b, region_manage_stdisp)){
 877         region_manage_stdisp(b, stdisp, di);
 878         if(REGION_MANAGER(stdisp)==b)
 879             return;
 880     }
 881
 882     /* No. */
 883
 884     szplcy=stdisp_szplcy(di, stdisp)|SIZEPOLICY_SHRUNK;
 885
 886     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg==stdisp){
 887         if(ws->managed_stdisp->szplcy==szplcy)
 888             return;
 889         ws->managed_stdisp->szplcy=szplcy;
 890     }else{
 891         region_detach_manager(stdisp);
 892         ws->managed_stdisp=group_do_add_managed(ws, stdisp,
 893                                                 STACKING_LEVEL_ON_TOP,
 894                                                 szplcy);
 895     }
 896
 897     stdisp->flags|=REGION_SKIP_FOCUS;
 898
 899     fp.g=REGION_GEOM(ws);
 900     sizepolicy(&ws->managed_stdisp->szplcy, stdisp, NULL, 0, &fp);
 901
 902     region_fitrep(stdisp, NULL, &fp);
 903 }
 904
 905
 906 static void group_remanage_stdisp(WGroup *ws)
 907 {
 908     WMPlex *mplex=OBJ_CAST(REGION_MANAGER(ws), WMPlex);
 909
 910     if(mplex!=NULL &&
 911        mplex->mx_current!=NULL &&
 912        mplex->mx_current->st->reg==(WRegion*)ws){
 913         mplex_remanage_stdisp(mplex);
 914     }
 915 }
 916
 917
 918 /*}}}*/
 919
 920
 921 /*{{{ Geometry requests */
 922
 923
 924 void group_managed_rqgeom(WGroup *ws, WRegion *reg,
 925                           const WRQGeomParams *rq,
 926                           WRectangle *geomret)
 927 {
 928     WFitParams fp;
 929     WStacking *st;
 930
 931     st=group_find_stacking(ws, reg);
 932
 933     if(st==NULL){
 934         fp.g=rq->geom;
 935         fp.mode=REGION_FIT_EXACT;
 936     }else{
 937         fp.g=REGION_GEOM(ws);
 938         sizepolicy(&st->szplcy, reg, &rq->geom, rq->flags, &fp);
 939     }
 940
 941     if(geomret!=NULL)
 942         *geomret=fp.g;
 943
 944     if(!(rq->flags&REGION_RQGEOM_TRYONLY))
 945         region_fitrep(reg, NULL, &fp);
 946 }
 947
 948
 949 void group_managed_rqgeom_absolute(WGroup *grp, WRegion *sub,
 950                                    const WRQGeomParams *rq,
 951                                    WRectangle *geomret)
 952 {
 953     if(grp->bottom!=NULL && grp->bottom->reg==sub){
 954         region_rqgeom((WRegion*)grp, rq, geomret);
 955         if(!(rq->flags&REGION_RQGEOM_TRYONLY) && geomret!=NULL)
 956             *geomret=REGION_GEOM(sub);
 957     }else{
 958         WRQGeomParams rq2=*rq;
 959         rq2.flags&=~REGION_RQGEOM_ABSOLUTE;
 960
 961         region_managed_rqgeom((WRegion*)grp, sub, &rq2, geomret);
 962     }
 963 }
 964
 965
 966 /*}}}*/
 967
 968
 969 /*{{{ Navigation */
 970
 971
 972 static WStacking *nxt(WGroup *ws, WStacking *st, bool wrap)
 973 {
 974     return (st->mgr_next!=NULL
 975             ? st->mgr_next
 976             : (wrap ? ws->managed_list : NULL));
 977 }
 978
 979
 980 static WStacking *prv(WGroup *ws, WStacking *st, bool wrap)
 981 {
 982     return (st!=ws->managed_list
 983             ? st->mgr_prev
 984             : (wrap ? st->mgr_prev : NULL));
 985 }
 986
 987
 988 typedef WStacking *NxtFn(WGroup *ws, WStacking *st, bool wrap);
 989
 990
 991 static bool focusable(WGroup *ws, WStacking *st, uint min_level)
 992 {
 993     return (st->reg!=NULL
 994             && REGION_IS_MAPPED(st->reg)
 995             && !(st->reg->flags&REGION_SKIP_FOCUS)
 996             && st->level>=min_level);
 997 }
 998
 999
1000 static WStacking *do_get_next(WGroup *ws, WStacking *sti,
1001                               NxtFn *fn, bool wrap, bool sti_ok)
1002 {
1003     WStacking *st, *stacking;
1004     uint min_level=0;
1005
1006     stacking=group_get_stacking(ws);
1007
1008     if(stacking!=NULL)
1009         min_level=stacking_min_level_mapped(stacking);
1010
1011     st=sti;
1012     while(1){
1013         st=fn(ws, st, wrap);
1014
1015         if(st==NULL || st==sti)
1016             break;
1017
1018         if(focusable(ws, st, min_level))
1019             return st;
1020     }
1021
1022     if(sti_ok && focusable(ws, sti, min_level))
1023         return sti;
1024
1025     return NULL;
1026 }
1027
1028
1029 static WStacking *group_do_navi_first(WGroup *ws, WRegionNavi nh)
1030 {
1031     WStacking *lst=ws->managed_list;
1032
1033     if(lst==NULL)
1034         return NULL;
1035
1036     if(nh==REGION_NAVI_ANY &&
1037        ws->current_managed!=NULL &&
1038        ws->current_managed->reg!=NULL){
1039         return ws->current_managed;
1040     }
1041
1042     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1043        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1044         return do_get_next(ws, lst, prv, TRUE, TRUE);
1045     }else{
1046         return do_get_next(ws, lst->mgr_prev, nxt, TRUE, TRUE);
1047     }
1048 }
1049
1050
1051 static WRegion *group_navi_first(WGroup *ws, WRegionNavi nh,
1052                                  WRegionNaviData *data)
1053 {
1054     WStacking *st=group_do_navi_first(ws, nh);
1055
1056     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1057 }
1058
1059
1060 static WStacking *group_do_navi_next(WGroup *ws, WStacking *st,
1061                                      WRegionNavi nh, bool wrap)
1062 {
1063     if(st==NULL)
1064         return group_do_navi_first(ws, nh);
1065
1066     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1067        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1068         return do_get_next(ws, st, nxt, wrap, FALSE);
1069     }else{
1070         return do_get_next(ws, st, prv, wrap, FALSE);
1071     }
1072 }
1073
1074 static WRegion *group_navi_next(WGroup *ws, WRegion *reg,
1075                                 WRegionNavi nh, WRegionNaviData *data)
1076 {
1077     WStacking *st=group_find_stacking(ws, reg);
1078
1079     st=group_do_navi_next(ws, st, nh, FALSE);
1080
1081     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1082 }
1083
1084
1085 /*}}}*/
1086
1087
1088 /*{{{ Stacking */
1089
1090
1091 /*
1092  * Note: Managed objects are considered to be stacked separately from the
1093  * group, slightly violating expectations.
1094  */
1095
1096 void group_stacking(WGroup *ws, Window *bottomret, Window *topret)
1097 {
1098     Window win=region_xwindow((WRegion*)ws);
1099
1100     *bottomret=win;
1101     *topret=win;
1102 }
1103
1104
1105 void group_restack(WGroup *ws, Window other, int mode)
1106 {
1107     Window win;
1108
1109     win=region_xwindow((WRegion*)ws);
1110     if(win!=None){
1111         xwindow_restack(win, other, mode);
1112         other=win;
1113         mode=Above;
1114     }
1115 }
1116
1117
1118 WStacking *group_find_stacking(WGroup *ws, WRegion *r)
1119 {
1120     if(r==NULL || REGION_MANAGER(r)!=(WRegion*)ws)
1121         return NULL;
1122
1123     return ioncore_find_stacking(r);
1124 }
1125
1126
1127 static WStacking *find_stacking_if_not_on_ws(WGroup *ws, Window w)
1128 {
1129     WRegion *r=xwindow_region_of(w);
1130     WStacking *st=NULL;
1131
1132     while(r!=NULL){
1133         if(REGION_MANAGER(r)==(WRegion*)ws)
1134             break;
1135         st=group_find_stacking(ws, r);
1136         if(st!=NULL)
1137             break;
1138         r=REGION_MANAGER(r);
1139     }
1140
1141     return st;
1142 }
1143
1144
1145 bool group_managed_rqorder(WGroup *grp, WRegion *reg, WRegionOrder order)
1146 {
1147     WStacking **stackingp=group_get_stackingp(grp);
1148     WStacking *st;
1149
1150     if(stackingp==NULL || *stackingp==NULL)
1151         return FALSE;
1152
1153     st=group_find_stacking(grp, reg);
1154
1155     if(st==NULL)
1156         return FALSE;
1157
1158     stacking_restack(stackingp, st, None, NULL, NULL,
1159                      (order!=REGION_ORDER_FRONT));
1160
1161     return TRUE;
1162 }
1163
1164
1165 /*}}}*/
1166
1167
1168 /*{{{ Misc. */
1169
1170
1171 /*EXTL_DOC
1172  * Iterate over managed regions of \var{ws} until \var{iterfn} returns
1173  * \code{false}.
1174  * The function itself returns \code{true} if it reaches the end of list
1175  * without this happening.
1176  */
1177 EXTL_SAFE
1178 EXTL_EXPORT_MEMBER
1179 bool group_managed_i(WGroup *ws, ExtlFn iterfn)
1180 {
1181     WGroupIterTmp tmp;
1182     group_iter_init(&tmp, ws);
1183
1184     return extl_iter_objlist_(iterfn, (ObjIterator*)group_iter, &tmp);
1185 }
1186
1187
1188 WRegion* group_current(WGroup *ws)
1189 {
1190     return (ws->current_managed!=NULL ? ws->current_managed->reg : NULL);
1191 }
1192
1193
1194 void group_size_hints(WGroup *ws, WSizeHints *hints_ret)
1195 {
1196     if(ws->bottom==NULL || ws->bottom->reg==NULL){
1197         sizehints_clear(hints_ret);
1198     }else{
1199         region_size_hints(ws->bottom->reg, hints_ret);
1200         hints_ret->no_constrain=TRUE;
1201     }
1202 }
1203
1204
1205 Window group_xwindow(const WGroup *ws)
1206 {
1207     return ws->dummywin;
1208 }
1209
1210
1211 /*EXTL_DOC
1212  * Returns the group of \var{reg}, if it is managed by one,
1213  * and \var{reg} itself otherwise.
1214  */
1215 /*EXTL_EXPORT_MEMBER
1216 WRegion *region_group_of(WRegion *reg)
1217 {
1218     WRegion *mgr=REGION_MANAGER(reg);
1219
1220     return (OBJ_IS(mgr, WGroup) ? mgr : reg);
1221 }*/
1222
1223
1224 /*EXTL_DOC
1225  * Returns the group of \var{reg}, if \var{reg} is its bottom,
1226  * and \var{reg} itself otherwise.
1227  */
1228 EXTL_EXPORT_MEMBER
1229 WRegion *region_groupleader_of(WRegion *reg)
1230 {
1231     WGroup *grp=REGION_MANAGER_CHK(reg, WGroup);
1232
1233     return ((grp!=NULL && group_bottom(grp)==reg)
1234             ? (WRegion*)grp
1235             : reg);
1236 }
1237
1238
1239 /*}}}*/
1240
1241
1242 /*{{{ Save/load */
1243
1244
1245 static ExtlTab group_get_configuration(WGroup *ws)
1246 {
1247     ExtlTab tab, mgds, subtab, g;
1248     WStacking *st;
1249     WGroupIterTmp tmp;
1250     WMPlex *par;
1251     int n=0;
1252     WRectangle tmpg;
1253
1254     tab=region_get_base_configuration((WRegion*)ws);
1255
1256     mgds=extl_create_table();
1257
1258     extl_table_sets_t(tab, "managed", mgds);
1259
1260     /* TODO: stacking order messed up */
1261
1262     FOR_ALL_NODES_IN_GROUP(ws, st, tmp){
1263         if(st->reg==NULL)
1264             continue;
1265
1266         subtab=region_get_configuration(st->reg);
1267
1268         if(subtab!=extl_table_none()){
1269             extl_table_sets_s(subtab, "sizepolicy",
1270                               sizepolicy2string(st->szplcy));
1271             extl_table_sets_i(subtab, "level", st->level);
1272
1273             tmpg=REGION_GEOM(st->reg);
1274             tmpg.x-=REGION_GEOM(ws).x;
1275             tmpg.y-=REGION_GEOM(ws).y;
1276
1277             g=extl_table_from_rectangle(&tmpg);
1278             extl_table_sets_t(subtab, "geom", g);
1279             extl_unref_table(g);
1280
1281             if(ws->bottom==st)
1282                 extl_table_sets_b(subtab, "bottom", TRUE);
1283
1284             extl_table_seti_t(mgds, ++n, subtab);
1285             extl_unref_table(subtab);
1286         }
1287     }
1288
1289     extl_unref_table(mgds);
1290
1291     return tab;
1292 }
1293
1294
1295 void group_do_load(WGroup *ws, ExtlTab tab)
1296 {
1297     ExtlTab substab, subtab;
1298     int i, n;
1299
1300     if(extl_table_gets_t(tab, "managed", &substab)){
1301         n=extl_table_get_n(substab);
1302         for(i=1; i<=n; i++){
1303             if(extl_table_geti_t(substab, i, &subtab)){
1304                 group_attach_new(ws, subtab);
1305                 extl_unref_table(subtab);
1306             }
1307         }
1308
1309         extl_unref_table(substab);
1310     }
1311 }
1312
1313
1314 WRegion *group_load(WWindow *par, const WFitParams *fp, ExtlTab tab)
1315 {
1316     WGroup *ws;
1317
1318     ws=create_group(par, fp);
1319
1320     if(ws==NULL)
1321         return NULL;
1322
1323     group_do_load(ws, tab);
1324
1325     return (WRegion*)ws;
1326 }
1327
1328
1329 /*}}}*/
1330
1331
1332 /*{{{ Dynamic function table and class implementation */
1333
1334
1335 static DynFunTab group_dynfuntab[]={
1336     {(DynFun*)region_fitrep,
1337      (DynFun*)group_fitrep},
1338
1339     {region_map,
1340      group_map},
1341
1342     {region_unmap,
1343      group_unmap},
1344
1345     {(DynFun*)region_managed_prepare_focus,
1346      (DynFun*)group_managed_prepare_focus},
1347
1348     {region_do_set_focus,
1349      group_do_set_focus},
1350
1351     {region_managed_notify,
1352      group_managed_notify},
1353
1354     {region_managed_remove,
1355      group_managed_remove},
1356
1357     {(DynFun*)region_get_configuration,
1358      (DynFun*)group_get_configuration},
1359
1360     {(DynFun*)region_current,
1361      (DynFun*)group_current},
1362
1363     {(DynFun*)region_rescue_clientwins,
1364      (DynFun*)group_rescue_clientwins},
1365
1366     {region_restack,
1367      group_restack},
1368
1369     {region_stacking,
1370      group_stacking},
1371
1372     {(DynFun*)region_managed_get_pholder,
1373      (DynFun*)group_managed_get_pholder},
1374
1375     {region_managed_rqgeom,
1376      group_managed_rqgeom},
1377
1378     {region_managed_rqgeom_absolute,
1379      group_managed_rqgeom_absolute},
1380
1381     {(DynFun*)group_do_add_managed,
1382      (DynFun*)group_do_add_managed_default},
1383
1384     {region_size_hints,
1385      group_size_hints},
1386
1387     {(DynFun*)region_xwindow,
1388      (DynFun*)group_xwindow},
1389
1390     {(DynFun*)region_navi_first,
1391      (DynFun*)group_navi_first},
1392
1393     {(DynFun*)region_navi_next,
1394      (DynFun*)group_navi_next},
1395
1396     {(DynFun*)region_managed_rqorder,
1397      (DynFun*)group_managed_rqorder},
1398
1399     END_DYNFUNTAB
1400 };
1401
1402
1403 EXTL_EXPORT
1404 IMPLCLASS(WGroup, WRegion, group_deinit, group_dynfuntab);
1405
1406
1407 /*}}}*/
1408