ioncore/pholder.c

   1 /*
   2  * ion/ioncore/pholder.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 2005-2009.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <libtu/objp.h>
  10 #include "common.h"
  11 #include "attach.h"
  12 #include "pholder.h"
  13 #include "focus.h"
  14
  15
  16 bool pholder_init(WPHolder *ph)
  17 {
  18     return TRUE;
  19 }
  20
  21
  22 void pholder_deinit(WPHolder *ph)
  23 {
  24 }
  25
  26
  27 WRegion *pholder_do_attach(WPHolder *ph, int flags,
  28                            WRegionAttachData *data)
  29
  30 {
  31     WRegion *ret=NULL;
  32     CALL_DYN_RET(ret, WRegion*, pholder_do_attach, ph, (ph, flags, data));
  33     return ret;
  34 }
  35
  36
  37 bool pholder_attach(WPHolder *ph, int flags, WRegion *reg)
  38 {
  39     WRegionAttachData data;
  40
  41     data.type=REGION_ATTACH_REPARENT;
  42     data.u.reg=reg;
  43
  44     return (pholder_do_attach(ph, flags, &data)!=NULL);
  45 }
  46
  47
  48 bool pholder_attach_mcfgoto(WPHolder *ph, int flags, WRegion *reg)
  49 {
  50     bool cf=region_may_control_focus(reg);
  51
  52     if(!pholder_attach(ph, flags, reg))
  53         return FALSE;
  54
  55     if(cf)
  56         region_goto(reg);
  57
  58     return TRUE;
  59 }
  60
  61
  62 WRegion *pholder_do_target(WPHolder *ph)
  63 {
  64     WRegion *ret=NULL;
  65     CALL_DYN_RET(ret, WRegion*, pholder_do_target, ph, (ph));
  66     return ret;
  67 }
  68
  69
  70 WRegion *pholder_target(WPHolder *ph)
  71 {
  72     return pholder_do_target(ph);
  73 }
  74
  75
  76 static bool pholder_do_check_reparent_default(WPHolder *ph, WRegion *reg)
  77 {
  78     WRegion *target=pholder_do_target(ph);
  79
  80     return (target==NULL
  81             ? FALSE
  82             : region_ancestor_check(target, reg));
  83 }
  84
  85
  86 DYNFUN bool pholder_do_check_reparent(WPHolder *ph, WRegion *reg)
  87 {
  88     bool ret=FALSE;
  89     CALL_DYN_RET(ret, bool, pholder_do_check_reparent, ph, (ph, reg));
  90     return ret;
  91 }
  92
  93
  94 bool pholder_check_reparent(WPHolder *ph, WRegion *reg)
  95 {
  96     return pholder_do_check_reparent(ph, reg);
  97 }
  98
  99
 100 bool pholder_do_goto(WPHolder *ph)
 101 {
 102     bool ret=FALSE;
 103     CALL_DYN_RET(ret, bool, pholder_do_goto, ph, (ph));
 104     return ret;
 105 }
 106
 107
 108 bool pholder_goto(WPHolder *ph)
 109 {
 110     return pholder_do_goto(ph);
 111 }
 112
 113
 114 bool pholder_stale_default(WPHolder *ph)
 115 {
 116     return (pholder_target(ph)==NULL);
 117 }
 118
 119
 120 bool pholder_stale(WPHolder *ph)
 121 {
 122     bool ret=TRUE;
 123     CALL_DYN_RET(ret, bool, pholder_stale, ph, (ph));
 124     return ret;
 125 }
 126
 127
 128 WPHolder *region_managed_get_pholder(WRegion *reg, WRegion *mgd)
 129 {
 130     WPHolder *ret=NULL;
 131     CALL_DYN_RET(ret, WPHolder*, region_managed_get_pholder,
 132                  reg, (reg, mgd));
 133     return ret;
 134 }
 135
 136
 137 WPHolder *region_get_rescue_pholder_for(WRegion *reg, WRegion *mgd)
 138 {
 139     if(OBJ_IS_BEING_DESTROYED(reg) || reg->flags&REGION_CWINS_BEING_RESCUED){
 140         return FALSE;
 141     }else{
 142         WPHolder *ret=NULL;
 143
 144         CALL_DYN_RET(ret, WPHolder*, region_get_rescue_pholder_for,
 145                      reg, (reg, mgd));
 146         return ret;
 147     }
 148 }
 149
 150
 151 WPHolder *region_get_rescue_pholder(WRegion *reg)
 152 {
 153     WRegion *mgr;
 154     WPHolder *ph=NULL;
 155
 156     while(1){
 157         mgr=region_manager_or_parent(reg);
 158         if(mgr==NULL)
 159             break;
 160         ph=region_get_rescue_pholder_for(mgr, reg);
 161         if(ph!=NULL)
 162             break;
 163         reg=mgr;
 164     }
 165
 166     return ph;
 167 }
 168
 169
 170 WPHolder *pholder_either(WPHolder *a, WPHolder *b)
 171 {
 172     return (a!=NULL ? a : b);
 173 }
 174
 175
 176 static DynFunTab pholder_dynfuntab[]={
 177     {(DynFun*)pholder_do_check_reparent,
 178      (DynFun*)pholder_do_check_reparent_default},
 179
 180     {(DynFun*)pholder_stale,
 181      (DynFun*)pholder_stale_default},
 182
 183     END_DYNFUNTAB
 184 };
 185
 186
 187 IMPLCLASS(WPHolder, Obj, pholder_deinit, pholder_dynfuntab);
 188