ioncore/group.c

   1 /*
   2  * ion/ioncore/group.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2008.
   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     ws->phs=NULL;
 360
 361     ws->dummywin=XCreateWindow(ioncore_g.dpy, par->win,
 362                                 fp->g.x, fp->g.y, 1, 1, 0,
 363                                 CopyFromParent, InputOnly,
 364                                 CopyFromParent, 0, NULL);
 365     if(ws->dummywin==None)
 366         return FALSE;
 367
 368     region_init(&ws->reg, par, fp);
 369     region_register(&ws->reg);
 370
 371     XSelectInput(ioncore_g.dpy, ws->dummywin,
 372                  FocusChangeMask|KeyPressMask|KeyReleaseMask|
 373                  ButtonPressMask|ButtonReleaseMask);
 374     XSaveContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context,
 375                  (XPointer)ws);
 376
 377     ((WRegion*)ws)->flags|=REGION_GRAB_ON_PARENT;
 378
 379     region_add_bindmap((WRegion*)ws, ioncore_group_bindmap);
 380
 381     return TRUE;
 382 }
 383
 384
 385 WGroup *create_group(WWindow *par, const WFitParams *fp)
 386 {
 387     CREATEOBJ_IMPL(WGroup, group, (p, par, fp));
 388 }
 389
 390
 391 void group_deinit(WGroup *ws)
 392 {
 393     WGroupIterTmp tmp;
 394     WRegion *reg;
 395
 396     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg!=NULL){
 397         group_managed_remove(ws, ws->managed_stdisp->reg);
 398         assert(ws->managed_stdisp==NULL);
 399     }
 400
 401     FOR_ALL_MANAGED_BY_GROUP(ws, reg, tmp){
 402         destroy_obj((Obj*)reg);
 403     }
 404
 405     assert(ws->managed_list==NULL);
 406
 407     XDeleteContext(ioncore_g.dpy, ws->dummywin, ioncore_g.win_context);
 408     XDestroyWindow(ioncore_g.dpy, ws->dummywin);
 409     ws->dummywin=None;
 410
 411     while(ws->phs!=NULL)
 412         grouppholder_do_unlink(ws->phs);
 413
 414     region_deinit(&ws->reg);
 415 }
 416
 417
 418 bool group_rescue_clientwins(WGroup *ws, WRescueInfo *info)
 419 {
 420     WGroupIterTmp tmp;
 421
 422     group_iter_init_nostdisp(&tmp, ws);
 423
 424     return region_rescue_some_clientwins((WRegion*)ws, info,
 425                                          (WRegionIterator*)group_iter,
 426                                          &tmp);
 427 }
 428
 429
 430 WPHolder *group_get_rescue_pholder_for(WGroup *ws,
 431                                        WRegion *forwhat)
 432 {
 433     WGroupAttachParams ap=GROUPATTACHPARAMS_INIT;
 434     WFramedParam fp=FRAMEDPARAM_INIT;
 435     WPHolder *ph;
 436
 437     ap.geom_set=TRUE;
 438     ap.geom=REGION_GEOM(forwhat);
 439
 440     ap.geom_weak_set=1;
 441
 442     if(REGION_PARENT(forwhat)==REGION_PARENT(ws)){
 443         ap.geom.x-=REGION_GEOM(ws).x;
 444         ap.geom.y-=REGION_GEOM(ws).y;
 445     }else{
 446         ap.geom_weak=REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y;
 447     }
 448
 449     /* frame mode */
 450     /*{
 451         WFrame *frame=OBJ_CAST(forwhat, WFrame);
 452         if(frame!=NULL)
 453             fp.mode=frame->mode;
 454     }*/
 455
 456     ph=(WPHolder*)create_grouppholder(ws, NULL, &ap);
 457
 458     return pholder_either((WPHolder*)create_framedpholder(ph, &fp), ph);
 459 }
 460
 461
 462
 463 /*}}}*/
 464
 465
 466 /*{{{ Bottom */
 467
 468
 469 void group_bottom_set(WGroup *grp)
 470 {
 471     CALL_DYN(group_bottom_set, grp, (grp));
 472 }
 473
 474
 475 static void group_do_set_bottom(WGroup *grp, WStacking *st)
 476 {
 477     WStacking *was=grp->bottom;
 478     WStacking *std=grp->managed_stdisp;
 479
 480     grp->bottom=st;
 481
 482     if(!OBJ_IS_BEING_DESTROYED(grp)){
 483         bool noremanage=((was==st) ||
 484                          (was==NULL && std==NULL) ||
 485                          (st!=NULL && st==std) ||
 486                          (st==NULL && was==std));
 487
 488         if(!noremanage &&
 489            (st==NULL || HAS_DYN(st->reg, region_manage_stdisp))){
 490             group_remanage_stdisp(grp);
 491         }
 492
 493         group_bottom_set(grp);
 494     }
 495 }
 496
 497
 498 /*EXTL_DOC
 499  * Sets the `bottom' of \var{ws}. The region \var{reg} must already
 500  * be managed by \var{ws}, unless \code{nil}.
 501  */
 502 EXTL_EXPORT_MEMBER
 503 bool group_set_bottom(WGroup *ws, WRegion *reg)
 504 {
 505     WStacking *st=NULL;
 506
 507     if(reg!=NULL){
 508         st=group_find_stacking(ws, reg);
 509
 510         if(st==NULL)
 511             return FALSE;
 512     }
 513
 514     group_do_set_bottom(ws, st);
 515
 516     return TRUE;
 517 }
 518
 519
 520 /*EXTL_DOC
 521  * Returns the `bottom' of \var{ws}.
 522  */
 523 EXTL_SAFE
 524 EXTL_EXPORT_MEMBER
 525 WRegion *group_bottom(WGroup *ws)
 526 {
 527     return (ws->bottom!=NULL ? ws->bottom->reg : NULL);
 528 }
 529
 530
 531 /*}}}*/
 532
 533
 534 /*{{{ Attach */
 535
 536
 537 WStacking *group_do_add_managed(WGroup *ws, WRegion *reg, int level,
 538                                 WSizePolicy szplcy)
 539 {
 540     WStacking *st=NULL;
 541     CALL_DYN_RET(st, WStacking*, group_do_add_managed, ws,
 542                  (ws, reg, level, szplcy));
 543     return st;
 544 }
 545
 546
 547 WStacking *group_do_add_managed_default(WGroup *ws, WRegion *reg, int level,
 548                                         WSizePolicy szplcy)
 549 {
 550     WStacking *st=NULL, *tmp=NULL;
 551     Window bottom=None, top=None;
 552     WStacking **stackingp=group_get_stackingp(ws);
 553     WFrame *frame;
 554
 555     if(stackingp==NULL)
 556         return NULL;
 557
 558     st=create_stacking();
 559
 560     if(st==NULL)
 561         return NULL;
 562
 563     if(!stacking_assoc(st, reg)){
 564         stacking_free(st);
 565         return  NULL;
 566     }
 567
 568     frame=OBJ_CAST(reg, WFrame);
 569     if(frame!=NULL){
 570         if(framemode_unalt(frame_mode(frame))==FRAME_MODE_TILED)
 571             frame_set_mode(frame, FRAME_MODE_FLOATING);
 572     }
 573
 574     st->level=level;
 575     st->szplcy=szplcy;
 576
 577     LINK_ITEM_FIRST(tmp, st, next, prev);
 578     stacking_weave(stackingp, &tmp, FALSE);
 579     assert(tmp==NULL);
 580
 581     LINK_ITEM(ws->managed_list, st, mgr_next, mgr_prev);
 582     region_set_manager(reg, (WRegion*)ws);
 583
 584     if(region_is_fully_mapped((WRegion*)ws))
 585         region_map(reg);
 586
 587     return st;
 588 }
 589
 590
 591 static void geom_group_to_parent(WGroup *ws, const WRectangle *g,
 592                                  WRectangle *wg)
 593 {
 594     wg->x=g->x+REGION_GEOM(ws).x;
 595     wg->y=g->y+REGION_GEOM(ws).y;
 596     wg->w=maxof(1, g->w);
 597     wg->h=maxof(1, g->h);
 598 }
 599
 600
 601 static int group_must_focus(WGroup *ws, WStacking *st)
 602 {
 603     WStacking *stacking=group_get_stacking(ws);
 604
 605     return (stacking!=NULL && stacking_must_focus(stacking, st));
 606 }
 607
 608
 609 bool group_do_attach_final(WGroup *ws,
 610                            WRegion *reg,
 611                            const WGroupAttachParams *param)
 612 {
 613     WStacking *st, *stabove=NULL;
 614     WSizePolicy szplcy;
 615     WFitParams fp;
 616     WRectangle g;
 617     uint level;
 618     int weak;
 619     bool sw;
 620
 621     /* Stacking  */
 622     if(param->stack_above!=NULL)
 623         stabove=group_find_stacking(ws, param->stack_above);
 624
 625     level=(stabove!=NULL
 626            ? stabove->level
 627            : (param->level_set
 628               ? param->level
 629               : STACKING_LEVEL_NORMAL));
 630
 631     /* Fit */
 632     szplcy=(param->szplcy_set
 633             ? param->szplcy
 634             : (param->bottom
 635                ? SIZEPOLICY_FULL_EXACT
 636                : SIZEPOLICY_UNCONSTRAINED));
 637
 638     if(!param->whatever){
 639         weak=(param->geom_weak_set
 640               ? param->geom_weak
 641               : (param->geom_set
 642                  ? 0
 643                  : REGION_RQGEOM_WEAK_ALL));
 644
 645         if(param->geom_set)
 646             geom_group_to_parent(ws, &param->geom, &g);
 647         else
 648             g=REGION_GEOM(reg);
 649
 650         /* If the requested geometry does not overlap the workspaces's geometry,
 651          * position request is never honoured.
 652          */
 653         if((g.x+g.w<=REGION_GEOM(ws).x) ||
 654            (g.x>=REGION_GEOM(ws).x+REGION_GEOM(ws).w)){
 655             weak|=REGION_RQGEOM_WEAK_X;
 656         }
 657
 658         if((g.y+g.h<=REGION_GEOM(ws).y) ||
 659            (g.y>=REGION_GEOM(ws).y+REGION_GEOM(ws).h)){
 660             weak|=REGION_RQGEOM_WEAK_Y;
 661         }
 662
 663         if(weak&(REGION_RQGEOM_WEAK_X|REGION_RQGEOM_WEAK_Y) &&
 664             (szplcy==SIZEPOLICY_UNCONSTRAINED ||
 665              szplcy==SIZEPOLICY_FREE ||
 666              szplcy==SIZEPOLICY_FREE_GLUE /* without flags */)){
 667             /* TODO: use 'weak'? */
 668             group_calc_placement(ws, level, &g);
 669         }
 670
 671         fp.g=REGION_GEOM(ws);
 672         fp.mode=REGION_FIT_EXACT;
 673
 674         sizepolicy(&szplcy, reg, &g, weak, &fp);
 675
 676         if(rectangle_compare(&fp.g, &REGION_GEOM(reg))!=RECTANGLE_SAME)
 677             region_fitrep(reg, NULL, &fp);
 678     }
 679
 680     /* Add */
 681     st=group_do_add_managed(ws, reg, level, szplcy);
 682
 683     if(st==NULL)
 684         return FALSE;
 685
 686     if(stabove!=NULL)
 687         st->above=stabove;
 688
 689     if(param->bottom)
 690         group_do_set_bottom(ws, st);
 691
 692     /* Focus */
 693     sw=((param->switchto_set ? param->switchto : ioncore_g.switchto_new)
 694         ? st==find_to_focus(ws, st, FALSE)
 695         : group_must_focus(ws, st));
 696
 697     if(sw){
 698         if(region_may_control_focus((WRegion*)ws))
 699             region_set_focus(st->reg);
 700         else
 701             ws->current_managed=st;
 702     }else if(region_is_fully_mapped(reg)){
 703         region_pointer_focus_hack(reg);
 704     }
 705
 706     return TRUE;
 707 }
 708
 709
 710 static void group_attach_fp(WGroup *ws, const WGroupAttachParams *param,
 711                             WFitParams *fp)
 712 {
 713     if(param->geom_set){
 714         geom_group_to_parent(ws, &param->geom, &fp->g);
 715         fp->mode=REGION_FIT_EXACT;
 716     }else{
 717         fp->g=REGION_GEOM(ws);
 718         fp->mode=REGION_FIT_BOUNDS|REGION_FIT_WHATEVER;
 719     }
 720 }
 721
 722
 723 WRegion *group_do_attach(WGroup *ws,
 724                          /*const*/ WGroupAttachParams *param,
 725                          WRegionAttachData *data)
 726 {
 727     WFitParams fp;
 728     WRegion *reg;
 729
 730     if(ws->bottom!=NULL && param->bottom){
 731         warn(TR("'bottom' already set."));
 732         return NULL;
 733     }
 734
 735     group_attach_fp(ws, param, &fp);
 736
 737     return region_attach_helper((WRegion*) ws, REGION_PARENT(ws), &fp,
 738                                 (WRegionDoAttachFn*)group_do_attach_final,
 739                                 /*(const WRegionAttachParams*)*/param, data);
 740     /*                            ^^^^ doesn't seem to work. */
 741 }
 742
 743
 744 void group_get_attach_params(WGroup *ws, ExtlTab tab,
 745                              WGroupAttachParams *par)
 746 {
 747     int tmp;
 748     bool tmpb;
 749     char *tmps;
 750     ExtlTab g;
 751
 752     par->switchto_set=0;
 753     par->level_set=0;
 754     par->szplcy_set=0;
 755     par->geom_set=0;
 756     par->bottom=0;
 757
 758     if(extl_table_is_bool_set(tab, "bottom")){
 759         par->level=STACKING_LEVEL_BOTTOM;
 760         par->level_set=1;
 761         par->bottom=1;
 762     }
 763
 764     if(extl_table_gets_i(tab, "level", &tmp)){
 765         if(tmp>=0){
 766             par->level_set=1;
 767             par->level=tmp;
 768         }
 769     }
 770
 771     if(!par->level_set && extl_table_is_bool_set(tab, "modal")){
 772         par->level=STACKING_LEVEL_MODAL1;
 773         par->level_set=1;
 774     }
 775
 776     if(extl_table_gets_b(tab, "switchto", &tmpb)){
 777         par->switchto=(tmpb!=0);
 778         par->switchto_set=1;
 779     }
 780
 781     if(extl_table_gets_i(tab, "sizepolicy", &tmp)){
 782         par->szplcy_set=1;
 783         par->szplcy=tmp;
 784     }else if(extl_table_gets_s(tab, "sizepolicy", &tmps)){
 785         if(string2sizepolicy(tmps, &par->szplcy))
 786             par->szplcy_set=1;
 787         free(tmps);
 788     }
 789
 790     if(extl_table_gets_t(tab, "geom", &g)){
 791         int n=0;
 792
 793         if(extl_table_gets_i(g, "x", &(par->geom.x)))
 794             n++;
 795         if(extl_table_gets_i(g, "y", &(par->geom.y)))
 796             n++;
 797         if(extl_table_gets_i(g, "w", &(par->geom.w)))
 798             n++;
 799         if(extl_table_gets_i(g, "h", &(par->geom.h)))
 800             n++;
 801
 802         if(n==4)
 803             par->geom_set=1;
 804
 805         extl_unref_table(g);
 806     }
 807 }
 808
 809
 810
 811 /*EXTL_DOC
 812  * Attach and reparent existing region \var{reg} to \var{ws}.
 813  * The table \var{param} may contain the fields \var{index} and
 814  * \var{switchto} that are interpreted as for \fnref{WMPlex.attach_new}.
 815  */
 816 EXTL_EXPORT_MEMBER
 817 WRegion *group_attach(WGroup *ws, WRegion *reg, ExtlTab param)
 818 {
 819     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 820     WRegionAttachData data;
 821
 822     if(reg==NULL)
 823         return NULL;
 824
 825     group_get_attach_params(ws, param, &par);
 826
 827     data.type=REGION_ATTACH_REPARENT;
 828     data.u.reg=reg;
 829
 830     return group_do_attach(ws, &par, &data);
 831 }
 832
 833
 834 /*EXTL_DOC
 835  * Create a new region to be managed by \var{ws}. At least the following
 836  * fields in \var{param} are understood:
 837  *
 838  * \begin{tabularx}{\linewidth}{lX}
 839  *  \tabhead{Field & Description}
 840  *  \var{type} & (string) Class of the object to be created. Mandatory. \\
 841  *  \var{name} & (string) Name of the object to be created. \\
 842  *  \var{switchto} & (boolean) Should the region be switched to? \\
 843  *  \var{level} & (integer) Stacking level; default is 1. \\
 844  *  \var{modal} & (boolean) Make object modal; ignored if level is set. \\
 845  *  \var{sizepolicy} & (string) Size policy; see Section \ref{sec:sizepolicies}. \\
 846  *  \var{bottom} & (boolean) Mark the attached region as the
 847  *                 ``bottom'' of \var{ws}. \\
 848  * \end{tabularx}
 849  *
 850  * In addition parameters to the region to be created are passed in this
 851  * same table.
 852  */
 853 EXTL_EXPORT_MEMBER
 854 WRegion *group_attach_new(WGroup *ws, ExtlTab param)
 855 {
 856     WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
 857     WRegionAttachData data;
 858
 859     group_get_attach_params(ws, param, &par);
 860
 861     data.type=REGION_ATTACH_LOAD;
 862     data.u.tab=param;
 863
 864     return group_do_attach(ws, &par, &data);
 865 }
 866
 867
 868 /*}}}*/
 869
 870
 871 /*{{{ Status display support */
 872
 873
 874 static int stdisp_szplcy(const WMPlexSTDispInfo *di, WRegion *stdisp)
 875 {
 876     int pos=di->pos;
 877     int policy=0, gravity=0;
 878
 879     if(di->fullsize){
 880         if(region_orientation(stdisp)==REGION_ORIENTATION_VERTICAL){
 881             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_BL)
 882                 policy=SIZEPOLICY_STRETCH_LEFT;
 883             else
 884                 policy=SIZEPOLICY_STRETCH_RIGHT;
 885         }else{
 886             if(pos==MPLEX_STDISP_TL || pos==MPLEX_STDISP_TR)
 887                 policy=SIZEPOLICY_STRETCH_TOP;
 888             else
 889                 policy=SIZEPOLICY_STRETCH_BOTTOM;
 890         }
 891     }else{
 892         policy=SIZEPOLICY_GRAVITY;
 893     }
 894
 895     if(pos==MPLEX_STDISP_TL)
 896         gravity=SIZEPOLICY_VERT_TOP|SIZEPOLICY_HORIZ_LEFT;
 897     else if(pos==MPLEX_STDISP_BL)
 898         gravity=SIZEPOLICY_VERT_BOTTOM|SIZEPOLICY_HORIZ_LEFT;
 899     else if(pos==MPLEX_STDISP_TR)
 900         gravity=SIZEPOLICY_VERT_TOP|SIZEPOLICY_HORIZ_RIGHT;
 901     else /*if(pos=MPLEX_STDISP_BR)*/
 902         gravity=SIZEPOLICY_VERT_BOTTOM|SIZEPOLICY_HORIZ_RIGHT;
 903
 904     return (policy|gravity);
 905 }
 906
 907
 908 void group_manage_stdisp(WGroup *ws, WRegion *stdisp,
 909                          const WMPlexSTDispInfo *di)
 910 {
 911     WFitParams fp;
 912     uint szplcy;
 913     WRegion *b=(ws->bottom==NULL ? NULL : ws->bottom->reg);
 914
 915     /* Check if 'bottom' wants to manage the stdisp. */
 916     if(b!=NULL
 917        && !OBJ_IS_BEING_DESTROYED(b)
 918        && HAS_DYN(b, region_manage_stdisp)){
 919         region_manage_stdisp(b, stdisp, di);
 920         if(REGION_MANAGER(stdisp)==b)
 921             return;
 922     }
 923
 924     /* No. */
 925
 926     szplcy=stdisp_szplcy(di, stdisp)|SIZEPOLICY_SHRUNK;
 927
 928     if(ws->managed_stdisp!=NULL && ws->managed_stdisp->reg==stdisp){
 929         if(ws->managed_stdisp->szplcy==szplcy)
 930             return;
 931         ws->managed_stdisp->szplcy=szplcy;
 932     }else{
 933         region_detach_manager(stdisp);
 934         ws->managed_stdisp=group_do_add_managed(ws, stdisp,
 935                                                 STACKING_LEVEL_ON_TOP,
 936                                                 szplcy);
 937     }
 938
 939     stdisp->flags|=REGION_SKIP_FOCUS;
 940
 941     fp.g=REGION_GEOM(ws);
 942     fp.mode=0;
 943
 944     sizepolicy(&ws->managed_stdisp->szplcy, stdisp, NULL, 0, &fp);
 945
 946     region_fitrep(stdisp, NULL, &fp);
 947 }
 948
 949
 950 static void group_remanage_stdisp(WGroup *ws)
 951 {
 952     WMPlex *mplex=OBJ_CAST(REGION_MANAGER(ws), WMPlex);
 953
 954     if(mplex!=NULL &&
 955        mplex->mx_current!=NULL &&
 956        mplex->mx_current->st->reg==(WRegion*)ws){
 957         mplex_remanage_stdisp(mplex);
 958     }
 959 }
 960
 961
 962 /*}}}*/
 963
 964
 965 /*{{{ Geometry requests */
 966
 967
 968 void group_managed_rqgeom(WGroup *ws, WRegion *reg,
 969                           const WRQGeomParams *rq,
 970                           WRectangle *geomret)
 971 {
 972     WFitParams fp;
 973     WStacking *st;
 974
 975     st=group_find_stacking(ws, reg);
 976
 977     if(st==NULL){
 978         fp.g=rq->geom;
 979         fp.mode=REGION_FIT_EXACT;
 980     }else{
 981         fp.g=REGION_GEOM(ws);
 982         fp.mode=0;
 983         sizepolicy(&st->szplcy, reg, &rq->geom, rq->flags, &fp);
 984     }
 985
 986     if(geomret!=NULL)
 987         *geomret=fp.g;
 988
 989     if(!(rq->flags&REGION_RQGEOM_TRYONLY))
 990         region_fitrep(reg, NULL, &fp);
 991 }
 992
 993
 994 void group_managed_rqgeom_absolute(WGroup *grp, WRegion *sub,
 995                                    const WRQGeomParams *rq,
 996                                    WRectangle *geomret)
 997 {
 998     if(grp->bottom!=NULL && grp->bottom->reg==sub){
 999         region_rqgeom((WRegion*)grp, rq, geomret);
1000         if(!(rq->flags&REGION_RQGEOM_TRYONLY) && geomret!=NULL)
1001             *geomret=REGION_GEOM(sub);
1002     }else{
1003         WRQGeomParams rq2=*rq;
1004         rq2.flags&=~REGION_RQGEOM_ABSOLUTE;
1005
1006         region_managed_rqgeom((WRegion*)grp, sub, &rq2, geomret);
1007     }
1008 }
1009
1010
1011 /*}}}*/
1012
1013
1014 /*{{{ Navigation */
1015
1016
1017 static WStacking *nxt(WGroup *ws, WStacking *st, bool wrap)
1018 {
1019     return (st->mgr_next!=NULL
1020             ? st->mgr_next
1021             : (wrap ? ws->managed_list : NULL));
1022 }
1023
1024
1025 static WStacking *prv(WGroup *ws, WStacking *st, bool wrap)
1026 {
1027     return (st!=ws->managed_list
1028             ? st->mgr_prev
1029             : (wrap ? st->mgr_prev : NULL));
1030 }
1031
1032
1033 typedef WStacking *NxtFn(WGroup *ws, WStacking *st, bool wrap);
1034
1035
1036 static bool focusable(WGroup *ws, WStacking *st, uint min_level)
1037 {
1038     return (st->reg!=NULL
1039             && REGION_IS_MAPPED(st->reg)
1040             && !(st->reg->flags&REGION_SKIP_FOCUS)
1041             && st->level>=min_level);
1042 }
1043
1044
1045 static WStacking *do_get_next(WGroup *ws, WStacking *sti,
1046                               NxtFn *fn, bool wrap, bool sti_ok)
1047 {
1048     WStacking *st, *stacking;
1049     uint min_level=0;
1050
1051     stacking=group_get_stacking(ws);
1052
1053     if(stacking!=NULL)
1054         min_level=stacking_min_level_mapped(stacking);
1055
1056     st=sti;
1057     while(1){
1058         st=fn(ws, st, wrap);
1059
1060         if(st==NULL || st==sti)
1061             break;
1062
1063         if(focusable(ws, st, min_level))
1064             return st;
1065     }
1066
1067     if(sti_ok && focusable(ws, sti, min_level))
1068         return sti;
1069
1070     return NULL;
1071 }
1072
1073
1074 static WStacking *group_do_navi_first(WGroup *ws, WRegionNavi nh)
1075 {
1076     WStacking *lst=ws->managed_list;
1077
1078     if(lst==NULL)
1079         return NULL;
1080
1081     if(nh==REGION_NAVI_ANY &&
1082        ws->current_managed!=NULL &&
1083        ws->current_managed->reg!=NULL){
1084         return ws->current_managed;
1085     }
1086
1087     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1088        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1089         return do_get_next(ws, lst, prv, TRUE, TRUE);
1090     }else{
1091         return do_get_next(ws, lst->mgr_prev, nxt, TRUE, TRUE);
1092     }
1093 }
1094
1095
1096 static WRegion *group_navi_first(WGroup *ws, WRegionNavi nh,
1097                                  WRegionNaviData *data)
1098 {
1099     WStacking *st=group_do_navi_first(ws, nh);
1100
1101     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1102 }
1103
1104
1105 static WStacking *group_do_navi_next(WGroup *ws, WStacking *st,
1106                                      WRegionNavi nh, bool wrap)
1107 {
1108     if(st==NULL)
1109         return group_do_navi_first(ws, nh);
1110
1111     if(nh==REGION_NAVI_ANY || nh==REGION_NAVI_END ||
1112        nh==REGION_NAVI_BOTTOM || nh==REGION_NAVI_RIGHT){
1113         return do_get_next(ws, st, nxt, wrap, FALSE);
1114     }else{
1115         return do_get_next(ws, st, prv, wrap, FALSE);
1116     }
1117 }
1118
1119 static WRegion *group_navi_next(WGroup *ws, WRegion *reg,
1120                                 WRegionNavi nh, WRegionNaviData *data)
1121 {
1122     WStacking *st=group_find_stacking(ws, reg);
1123
1124     st=group_do_navi_next(ws, st, nh, FALSE);
1125
1126     return region_navi_cont(&ws->reg, (st!=NULL ? st->reg : NULL), data);
1127 }
1128
1129
1130 /*}}}*/
1131
1132
1133 /*{{{ Stacking */
1134
1135
1136 /*
1137  * Note: Managed objects are considered to be stacked separately from the
1138  * group, slightly violating expectations.
1139  */
1140
1141 void group_stacking(WGroup *ws, Window *bottomret, Window *topret)
1142 {
1143     Window win=region_xwindow((WRegion*)ws);
1144
1145     *bottomret=win;
1146     *topret=win;
1147 }
1148
1149
1150 void group_restack(WGroup *ws, Window other, int mode)
1151 {
1152     Window win;
1153
1154     win=region_xwindow((WRegion*)ws);
1155     if(win!=None){
1156         xwindow_restack(win, other, mode);
1157         other=win;
1158         mode=Above;
1159     }
1160 }
1161
1162
1163 WStacking *group_find_stacking(WGroup *ws, WRegion *r)
1164 {
1165     if(r==NULL || REGION_MANAGER(r)!=(WRegion*)ws)
1166         return NULL;
1167
1168     return ioncore_find_stacking(r);
1169 }
1170
1171
1172 static WStacking *find_stacking_if_not_on_ws(WGroup *ws, Window w)
1173 {
1174     WRegion *r=xwindow_region_of(w);
1175     WStacking *st=NULL;
1176
1177     while(r!=NULL){
1178         if(REGION_MANAGER(r)==(WRegion*)ws)
1179             break;
1180         st=group_find_stacking(ws, r);
1181         if(st!=NULL)
1182             break;
1183         r=REGION_MANAGER(r);
1184     }
1185
1186     return st;
1187 }
1188
1189
1190 bool group_managed_rqorder(WGroup *grp, WRegion *reg, WRegionOrder order)
1191 {
1192     WStacking **stackingp=group_get_stackingp(grp);
1193     WStacking *st;
1194
1195     if(stackingp==NULL || *stackingp==NULL)
1196         return FALSE;
1197
1198     st=group_find_stacking(grp, reg);
1199
1200     if(st==NULL)
1201         return FALSE;
1202
1203     stacking_restack(stackingp, st, None, NULL, NULL,
1204                      (order!=REGION_ORDER_FRONT));
1205
1206     return TRUE;
1207 }
1208
1209
1210 /*}}}*/
1211
1212
1213 /*{{{ Misc. */
1214
1215
1216 /*EXTL_DOC
1217  * Iterate over managed regions of \var{ws} until \var{iterfn} returns
1218  * \code{false}.
1219  * The function is called in protected mode.
1220  * This routine returns \code{true} if it reaches the end of list
1221  * without this happening.
1222  */
1223 EXTL_SAFE
1224 EXTL_EXPORT_MEMBER
1225 bool group_managed_i(WGroup *ws, ExtlFn iterfn)
1226 {
1227     WGroupIterTmp tmp;
1228     group_iter_init(&tmp, ws);
1229
1230     return extl_iter_objlist_(iterfn, (ObjIterator*)group_iter, &tmp);
1231 }
1232
1233
1234 WRegion* group_current(WGroup *ws)
1235 {
1236     return (ws->current_managed!=NULL ? ws->current_managed->reg : NULL);
1237 }
1238
1239
1240 void group_size_hints(WGroup *ws, WSizeHints *hints_ret)
1241 {
1242     if(ws->bottom==NULL || ws->bottom->reg==NULL){
1243         sizehints_clear(hints_ret);
1244     }else{
1245         region_size_hints(ws->bottom->reg, hints_ret);
1246         hints_ret->no_constrain=TRUE;
1247     }
1248 }
1249
1250
1251 Window group_xwindow(const WGroup *ws)
1252 {
1253     return ws->dummywin;
1254 }
1255
1256
1257 /*EXTL_DOC
1258  * Returns the group of \var{reg}, if it is managed by one,
1259  * and \var{reg} itself otherwise.
1260  */
1261 /*EXTL_EXPORT_MEMBER
1262 WRegion *region_group_of(WRegion *reg)
1263 {
1264     WRegion *mgr=REGION_MANAGER(reg);
1265
1266     return (OBJ_IS(mgr, WGroup) ? mgr : reg);
1267 }*/
1268
1269
1270 /*EXTL_DOC
1271  * Returns the group of \var{reg}, if \var{reg} is its bottom,
1272  * and \var{reg} itself otherwise.
1273  */
1274 EXTL_EXPORT_MEMBER
1275 WRegion *region_groupleader_of(WRegion *reg)
1276 {
1277     WGroup *grp=REGION_MANAGER_CHK(reg, WGroup);
1278
1279     return ((grp!=NULL && group_bottom(grp)==reg)
1280             ? (WRegion*)grp
1281             : reg);
1282 }
1283
1284
1285 /*}}}*/
1286
1287
1288 /*{{{ Save/load */
1289
1290
1291 static ExtlTab group_get_configuration(WGroup *ws)
1292 {
1293     ExtlTab tab, mgds, subtab, g;
1294     WStacking *st;
1295     WGroupIterTmp tmp;
1296     WMPlex *par;
1297     int n=0;
1298     WRectangle tmpg;
1299
1300     tab=region_get_base_configuration((WRegion*)ws);
1301
1302     mgds=extl_create_table();
1303
1304     extl_table_sets_t(tab, "managed", mgds);
1305
1306     /* TODO: stacking order messed up */
1307
1308     FOR_ALL_NODES_IN_GROUP(ws, st, tmp){
1309         if(st->reg==NULL)
1310             continue;
1311
1312         subtab=region_get_configuration(st->reg);
1313
1314         if(subtab!=extl_table_none()){
1315             extl_table_sets_s(subtab, "sizepolicy",
1316                               sizepolicy2string(st->szplcy));
1317             extl_table_sets_i(subtab, "level", st->level);
1318
1319             tmpg=REGION_GEOM(st->reg);
1320             tmpg.x-=REGION_GEOM(ws).x;
1321             tmpg.y-=REGION_GEOM(ws).y;
1322
1323             g=extl_table_from_rectangle(&tmpg);
1324             extl_table_sets_t(subtab, "geom", g);
1325             extl_unref_table(g);
1326
1327             if(ws->bottom==st)
1328                 extl_table_sets_b(subtab, "bottom", TRUE);
1329
1330             extl_table_seti_t(mgds, ++n, subtab);
1331             extl_unref_table(subtab);
1332         }
1333     }
1334
1335     extl_unref_table(mgds);
1336
1337     return tab;
1338 }
1339
1340
1341 void group_do_load(WGroup *ws, ExtlTab tab)
1342 {
1343     ExtlTab substab, subtab;
1344     int i, n;
1345
1346     if(extl_table_gets_t(tab, "managed", &substab)){
1347         n=extl_table_get_n(substab);
1348         for(i=1; i<=n; i++){
1349             if(extl_table_geti_t(substab, i, &subtab)){
1350                 WGroupAttachParams par=GROUPATTACHPARAMS_INIT;
1351                 WRegionAttachData data;
1352                 WFitParams fp;
1353                 WPHolder *ph;
1354
1355                 group_get_attach_params(ws, subtab, &par);
1356                 group_attach_fp(ws, &par, &fp);
1357
1358                 ph=(WPHolder*)create_grouppholder(ws, NULL, &par);
1359
1360                 region_attach_load_helper((WRegion*)ws, REGION_PARENT(ws), &fp,
1361                                           (WRegionDoAttachFn*)group_do_attach_final,
1362                                           (void*)&par, subtab, &ph);
1363
1364                 if(ph!=NULL)
1365                     destroy_obj((Obj*)ph);
1366
1367                 extl_unref_table(subtab);
1368             }
1369         }
1370
1371         extl_unref_table(substab);
1372     }
1373 }
1374
1375
1376 WRegion *group_load(WWindow *par, const WFitParams *fp, ExtlTab tab)
1377 {
1378     WGroup *ws;
1379
1380     ws=create_group(par, fp);
1381
1382     if(ws==NULL)
1383         return NULL;
1384
1385     group_do_load(ws, tab);
1386
1387     return (WRegion*)ws;
1388 }
1389
1390
1391 /*}}}*/
1392
1393
1394 /*{{{ Dynamic function table and class implementation */
1395
1396
1397 static DynFunTab group_dynfuntab[]={
1398     {(DynFun*)region_fitrep,
1399      (DynFun*)group_fitrep},
1400
1401     {region_map,
1402      group_map},
1403
1404     {region_unmap,
1405      group_unmap},
1406
1407     {(DynFun*)region_managed_prepare_focus,
1408      (DynFun*)group_managed_prepare_focus},
1409
1410     {region_do_set_focus,
1411      group_do_set_focus},
1412
1413     {region_managed_notify,
1414      group_managed_notify},
1415
1416     {region_managed_remove,
1417      group_managed_remove},
1418
1419     {(DynFun*)region_get_configuration,
1420      (DynFun*)group_get_configuration},
1421
1422     {(DynFun*)region_current,
1423      (DynFun*)group_current},
1424
1425     {(DynFun*)region_rescue_clientwins,
1426      (DynFun*)group_rescue_clientwins},
1427
1428     {region_restack,
1429      group_restack},
1430
1431     {region_stacking,
1432      group_stacking},
1433
1434     {(DynFun*)region_managed_get_pholder,
1435      (DynFun*)group_managed_get_pholder},
1436
1437     {region_managed_rqgeom,
1438      group_managed_rqgeom},
1439
1440     {region_managed_rqgeom_absolute,
1441      group_managed_rqgeom_absolute},
1442
1443     {(DynFun*)group_do_add_managed,
1444      (DynFun*)group_do_add_managed_default},
1445
1446     {region_size_hints,
1447      group_size_hints},
1448
1449     {(DynFun*)region_xwindow,
1450      (DynFun*)group_xwindow},
1451
1452     {(DynFun*)region_navi_first,
1453      (DynFun*)group_navi_first},
1454
1455     {(DynFun*)region_navi_next,
1456      (DynFun*)group_navi_next},
1457
1458     {(DynFun*)region_managed_rqorder,
1459      (DynFun*)group_managed_rqorder},
1460
1461     {(DynFun*)region_get_rescue_pholder_for,
1462      (DynFun*)group_get_rescue_pholder_for},
1463
1464     END_DYNFUNTAB
1465 };
1466
1467
1468 EXTL_EXPORT
1469 IMPLCLASS(WGroup, WRegion, group_deinit, group_dynfuntab);
1470
1471
1472 /*}}}*/
1473