ioncore/manage.c

   1 /*
   2  * ion/ioncore/manage.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2009.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <libtu/objp.h>
  10 #include <libextl/extl.h>
  11 #include "global.h"
  12 #include "common.h"
  13 #include "region.h"
  14 #include "manage.h"
  15 #include "names.h"
  16 #include "fullscreen.h"
  17 #include "pointer.h"
  18 #include "netwm.h"
  19 #include "extlconv.h"
  20 #include "return.h"
  21 #include "conf.h"
  22 #include "detach.h"
  23 #include "group-ws.h"
  24
  25
  26 /*{{{ Add */
  27
  28
  29 WScreen *clientwin_find_suitable_screen(WClientWin *cwin,
  30                                         const WManageParams *param)
  31 {
  32     WScreen *scr=NULL, *found=NULL;
  33     bool respectpos=(param->tfor!=NULL || param->userpos);
  34
  35     FOR_ALL_SCREENS(scr){
  36         if(!region_same_rootwin((WRegion*)scr, (WRegion*)cwin))
  37             continue;
  38         if(REGION_IS_ACTIVE(scr)){
  39             found=scr;
  40             if(!respectpos)
  41                 break;
  42         }
  43
  44         if(rectangle_contains(&REGION_GEOM(scr),
  45                     param->geom.x, param->geom.y)){
  46             found=scr;
  47             if(respectpos)
  48                 break;
  49         }
  50
  51         if(found==NULL)
  52             found=scr;
  53     }
  54
  55     return found;
  56 }
  57
  58
  59 /*extern WRegion *ioncore_newly_created;*/
  60
  61
  62 static WPHolder *try_target(WClientWin *cwin, const WManageParams *param,
  63                             const char *target)
  64 {
  65     WRegion *r=ioncore_lookup_region(target, NULL);
  66
  67     if(r==NULL)
  68         return NULL;
  69
  70     if(!region_same_rootwin(r, (WRegion*)cwin))
  71         return NULL;
  72
  73     return region_prepare_manage(r, cwin, param, MANAGE_PRIORITY_NONE);
  74 }
  75
  76
  77 static bool handle_target_winprops(WClientWin *cwin, const WManageParams *param,
  78                                    WScreen *scr, WPHolder **ph_ret)
  79 {
  80     char *layout=NULL, *target=NULL;
  81     WPHolder *ph=NULL;
  82     bool mgd=FALSE;
  83
  84     if(extl_table_gets_s(cwin->proptab, "target", &target))
  85         ph=try_target(cwin, param, target);
  86
  87     if(ph==NULL && extl_table_gets_s(cwin->proptab, "new_group", &layout)){
  88         ExtlTab lo=ioncore_get_layout(layout);
  89
  90         free(layout);
  91
  92         if(lo!=extl_table_none()){
  93             WMPlexAttachParams par=MPLEXATTACHPARAMS_INIT;
  94             int mask=MPLEX_ATTACH_SWITCHTO;
  95             WRegion *reg;
  96
  97             if(param->switchto)
  98                 par.flags|=MPLEX_ATTACH_SWITCHTO;
  99
 100             /*ioncore_newly_created=(WRegion*)cwin;*/
 101
 102             reg=mplex_attach_new_(&scr->mplex, &par, mask, lo);
 103
 104             extl_unref_table(lo);
 105
 106             /*ioncore_newly_created=NULL;*/
 107
 108             mgd=(region_manager((WRegion*)cwin)!=NULL);
 109
 110             if(reg!=NULL && !mgd){
 111                 if(target!=NULL)
 112                     ph=try_target(cwin, param, target);
 113
 114                 if(ph==NULL){
 115                     ph=region_prepare_manage(reg, cwin, param,
 116                                              MANAGE_PRIORITY_NONE);
 117
 118                     if(ph==NULL)
 119                         destroy_obj((Obj*)reg);
 120                 }
 121             }
 122         }
 123     }
 124
 125     if(target!=NULL)
 126         free(target);
 127
 128     *ph_ret=ph;
 129
 130     return mgd;
 131 }
 132
 133
 134 static bool try_fullscreen(WClientWin *cwin, WScreen *dflt,
 135                            const WManageParams *param)
 136 {
 137     WScreen *fs_scr=NULL;
 138     bool fs=FALSE, tmp;
 139
 140     /* Check fullscreen mode. (This is intentionally not done
 141      * for transients and windows with target winprops.)
 142      */
 143     if(extl_table_gets_b(cwin->proptab, "fullscreen", &tmp)){
 144         if(!tmp)
 145             return FALSE;
 146         fs_scr=dflt;
 147     }
 148
 149     if(fs_scr==NULL && netwm_check_initial_fullscreen(cwin))
 150         fs_scr=dflt;
 151
 152     if(fs_scr==NULL)
 153         fs_scr=clientwin_fullscreen_chkrq(cwin, param->geom.w, param->geom.h);
 154
 155     if(fs_scr!=NULL){
 156         WPHolder *fs_ph=region_prepare_manage((WRegion*)fs_scr, cwin, param,
 157                                               MANAGE_PRIORITY_NOREDIR);
 158
 159         if(fs_ph!=NULL){
 160             int swf=(param->switchto ? PHOLDER_ATTACH_SWITCHTO : 0);
 161
 162             cwin->flags|=CLIENTWIN_FS_RQ;
 163
 164             fs=pholder_attach(fs_ph, swf, (WRegion*)cwin);
 165
 166             if(!fs)
 167                 cwin->flags&=~CLIENTWIN_FS_RQ;
 168
 169             destroy_obj((Obj*)fs_ph);
 170         }
 171     }
 172
 173     return fs;
 174 }
 175
 176
 177 bool clientwin_do_manage_default(WClientWin *cwin,
 178                                  const WManageParams *param)
 179 {
 180     WScreen *scr=NULL;
 181     WPHolder *ph=NULL;
 182     int swf=(param->switchto ? PHOLDER_ATTACH_SWITCHTO : 0);
 183     bool ok, uq=FALSE;
 184     WRegion *createroot=NULL;
 185
 186     /* Find a suitable screen */
 187     scr=clientwin_find_suitable_screen(cwin, param);
 188     if(scr==NULL){
 189         warn(TR("Unable to find a screen for a new client window."));
 190         return FALSE;
 191     }
 192
 193     if(handle_target_winprops(cwin, param, scr, &ph))
 194         return TRUE;
 195
 196     /* Check if param->tfor or any of its managers want to manage cwin. */
 197     if(ph==NULL && param->tfor!=NULL){
 198         assert(param->tfor!=cwin);
 199         ph=region_prepare_manage_transient((WRegion*)param->tfor, cwin,
 200                                            param, 0);
 201         uq=TRUE;
 202     }
 203
 204     if(ph==NULL){
 205         /* Find a placeholder for non-fullscreen state */
 206         ph=region_prepare_manage((WRegion*)scr, cwin, param,
 207                                  MANAGE_PRIORITY_NONE);
 208
 209         if(try_fullscreen(cwin, scr, param)){
 210             if(pholder_target(ph)!=(WRegion*)region_screen_of((WRegion*)cwin)){
 211                 WRegion *grp=region_groupleader_of((WRegion*)cwin);
 212                 if(region_do_set_return(grp, ph))
 213                     return TRUE;
 214             }
 215             destroy_obj((Obj*)ph);
 216             return TRUE;
 217         }
 218
 219     }
 220
 221     if(ph==NULL)
 222         return FALSE;
 223
 224     /* Not in full-screen mode; use the placeholder to attach. */
 225     {
 226         WRegionAttachData data;
 227         data.type=REGION_ATTACH_REPARENT;
 228         data.u.reg=(WRegion*)cwin;
 229
 230         createroot=pholder_do_attach(ph,
 231                                      swf|PHOLDER_ATTACH_RETURN_CREATEROOT,
 232                                      &data);
 233     }
 234
 235     destroy_obj((Obj*)ph);
 236
 237     if(uq && createroot!=NULL)
 238         ioncore_unsqueeze(createroot, FALSE);
 239
 240     return (createroot!=NULL);
 241 }
 242
 243
 244 /*}}}*/
 245
 246
 247 /*{{{ region_prepare_manage/region_manage_clientwin/etc. */
 248
 249
 250 WPHolder *region_prepare_manage(WRegion *reg, const WClientWin *cwin,
 251                                 const WManageParams *param, int priority)
 252 {
 253     WPHolder *ret=NULL;
 254     CALL_DYN_RET(ret, WPHolder*, region_prepare_manage, reg,
 255                  (reg, cwin, param, priority));
 256     return ret;
 257 }
 258
 259
 260 WPHolder *region_prepare_manage_default(WRegion *reg, const WClientWin *cwin,
 261                                         const WManageParams *param, int priority)
 262 {
 263     int cpriority=MANAGE_PRIORITY_SUB(priority, MANAGE_PRIORITY_NONE);
 264     WRegion *curr=region_current(reg);
 265
 266     if(curr==NULL)
 267         return NULL;
 268
 269     return region_prepare_manage(curr, cwin, param, cpriority);
 270 }
 271
 272
 273 WPHolder *region_prepare_manage_transient(WRegion *reg,
 274                                           const WClientWin *cwin,
 275                                           const WManageParams *param,
 276                                           int unused)
 277 {
 278     WPHolder *ret=NULL;
 279     CALL_DYN_RET(ret, WPHolder*, region_prepare_manage_transient, reg,
 280                  (reg, cwin, param, unused));
 281     return ret;
 282 }
 283
 284
 285 WPHolder *region_prepare_manage_transient_default(WRegion *reg,
 286                                                   const WClientWin *cwin,
 287                                                   const WManageParams *param,
 288                                                   int unused)
 289 {
 290     WRegion *mgr=REGION_MANAGER(reg);
 291
 292     if(mgr!=NULL)
 293         return region_prepare_manage_transient(mgr, cwin, param, unused);
 294     else
 295         return NULL;
 296 }
 297
 298
 299 bool region_manage_clientwin(WRegion *reg, WClientWin *cwin,
 300                              const WManageParams *par, int priority)
 301 {
 302     bool ret;
 303     WPHolder *ph=region_prepare_manage(reg, cwin, par, priority);
 304     int swf=(par->switchto ? PHOLDER_ATTACH_SWITCHTO : 0);
 305
 306     if(ph==NULL)
 307         return FALSE;
 308
 309     ret=pholder_attach(ph, swf, (WRegion*)cwin);
 310
 311     destroy_obj((Obj*)ph);
 312
 313     return ret;
 314 }
 315
 316
 317 /*}}}*/
 318
 319
 320 /*{{{ Rescue */
 321
 322
 323 DECLSTRUCT(WRescueInfo){
 324     WPHolder *ph;
 325     WRegion *get_rescue;
 326     bool failed_get;
 327     bool test;
 328     int flags;
 329 };
 330
 331
 332 static WRegion *iter_children(void *st)
 333 {
 334     WRegion **nextp=(WRegion**)st;
 335     WRegion *next=*nextp;
 336     *nextp=(next==NULL ? NULL : next->p_next);
 337     return next;
 338 }
 339
 340
 341 bool region_rescue_child_clientwins(WRegion *reg, WRescueInfo *info)
 342 {
 343     WRegion *next=reg->children;
 344     return region_rescue_some_clientwins(reg, info, iter_children, &next);
 345 }
 346
 347
 348 WPHolder *rescueinfo_pholder(WRescueInfo *info)
 349 {
 350     if(info->test)
 351         return NULL;
 352
 353     if(info->ph==NULL){
 354         info->ph=region_get_rescue_pholder(info->get_rescue);
 355         if(info->ph==NULL){
 356             info->failed_get=TRUE;
 357             return NULL;
 358         }
 359     }
 360
 361     return info->ph;
 362 }
 363
 364
 365 /* Bah, unsplitissä oikestaan pitäisi tehä non-deep rescue */
 366
 367 bool region_do_rescue_this(WRegion *tosave_, WRescueInfo *info, int ph_flags)
 368 {
 369     WClientWin *cwin=OBJ_CAST(tosave_, WClientWin);
 370     WRegion *tosave=NULL;
 371
 372     if(cwin!=NULL){
 373         if(cwin->flags&CLIENTWIN_UNMAP_RQ)
 374             return TRUE;
 375         tosave=(WRegion*)cwin;
 376     }else if(info->flags&REGION_RESCUE_NODEEP){
 377         tosave=tosave_;
 378     }else{
 379         /* Try to rescue whole groups. */
 380         /*tosave=(WRegion*)OBJ_CAST(tosave_, WGroupCW);*/
 381     }
 382
 383     if(tosave==NULL){
 384         return region_rescue_clientwins(tosave_, info);
 385     }else{
 386         int phf=(info->flags&REGION_RESCUE_PHFLAGS_OK ? ph_flags : 0);
 387         WPHolder *ph=rescueinfo_pholder(info);
 388
 389         return (ph==NULL
 390                 ? FALSE
 391                 : pholder_attach(info->ph, phf, tosave));
 392     }
 393 }
 394
 395
 396 bool region_rescue_some_clientwins(WRegion *reg, WRescueInfo *info,
 397                                    WRegionIterator *iter, void *st)
 398 {
 399     bool res=FALSE;
 400     int fails=0;
 401
 402     if(info->failed_get)
 403         return FALSE;
 404
 405     reg->flags|=REGION_CWINS_BEING_RESCUED;
 406
 407     while(TRUE){
 408         WRegion *tosave=iter(st);
 409
 410         if(tosave==NULL)
 411             break;
 412
 413         if(!region_do_rescue_this(tosave, info, 0)){
 414             fails++;
 415             if(info->failed_get)
 416                 break;
 417         }
 418     }
 419
 420     reg->flags&=~REGION_CWINS_BEING_RESCUED;
 421
 422     return (fails==0 && !info->failed_get);
 423 }
 424
 425
 426 bool region_rescue_clientwins(WRegion *reg, WRescueInfo *info)
 427 {
 428     bool ret=FALSE;
 429     CALL_DYN_RET(ret, bool, region_rescue_clientwins, reg, (reg, info));
 430     return ret;
 431 }
 432
 433
 434 bool region_rescue(WRegion *reg, WPHolder *ph, int flags)
 435 {
 436     WRescueInfo info;
 437     bool ret;
 438
 439     info.ph=ph;
 440     info.flags=flags;
 441     info.test=FALSE;
 442     info.get_rescue=reg;
 443     info.failed_get=FALSE;
 444
 445     ret=region_rescue_clientwins(reg, &info);
 446
 447     if(info.ph!=ph)
 448         destroy_obj((Obj*)info.ph);
 449
 450     return ret;
 451 }
 452
 453
 454 bool region_rescue_needed(WRegion *reg)
 455 {
 456     WRescueInfo info;
 457
 458     info.ph=NULL;
 459     info.flags=0;
 460     info.test=TRUE;
 461     info.get_rescue=reg;
 462     info.failed_get=FALSE;
 463
 464     return !region_rescue_clientwins(reg, &info);
 465 }
 466
 467
 468 /*}}}*/
 469
 470
 471 /*{{{ Misc. */
 472
 473
 474 ExtlTab manageparams_to_table(const WManageParams *mp)
 475 {
 476     ExtlTab t=extl_create_table();
 477     extl_table_sets_b(t, "switchto", mp->switchto);
 478     extl_table_sets_b(t, "jumpto", mp->jumpto);
 479     extl_table_sets_b(t, "userpos", mp->userpos);
 480     extl_table_sets_b(t, "dockapp", mp->dockapp);
 481     extl_table_sets_b(t, "maprq", mp->maprq);
 482     extl_table_sets_i(t, "gravity", mp->gravity);
 483     extl_table_sets_rectangle(t, "geom", &(mp->geom));
 484     extl_table_sets_o(t, "tfor", (Obj*)(mp->tfor));
 485
 486     return t;
 487 }
 488
 489
 490 /*}}}*/