ioncore/basicpholder.c

   1 /*
   2  * ion/ioncore/basicpholder.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 2005-2007.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <libtu/objp.h>
  10 #include <libtu/obj.h>
  11 #include <libtu/pointer.h>
  12
  13 #include "basicpholder.h"
  14
  15
  16 /*{{{ Init/deinit */
  17
  18
  19 static void basicpholder_watch_handler(Watch *watch, Obj *reg)
  20 {
  21     WBasicPHolder *ph=FIELD_TO_STRUCT(WBasicPHolder, reg_watch, watch);
  22     pholder_redirect(&(ph->ph), (WRegion*)reg);
  23 }
  24
  25
  26 bool basicpholder_init(WBasicPHolder *ph, WRegion *reg,
  27                        WBasicPHolderHandler *hnd)
  28 {
  29     assert(reg!=NULL && hnd!=NULL);
  30
  31     pholder_init(&(ph->ph));
  32
  33     watch_init(&(ph->reg_watch));
  34
  35     if(!watch_setup(&(ph->reg_watch), (Obj*)reg, basicpholder_watch_handler)){
  36         pholder_deinit(&(ph->ph));
  37         return FALSE;
  38     }
  39
  40     ph->hnd=hnd;
  41
  42     return TRUE;
  43 }
  44
  45
  46 WBasicPHolder *create_basicpholder(WRegion *reg,
  47                                    WBasicPHolderHandler *hnd)
  48 {
  49     CREATEOBJ_IMPL(WBasicPHolder, basicpholder, (p, reg, hnd));
  50 }
  51
  52
  53 void basicpholder_deinit(WBasicPHolder *ph)
  54 {
  55     watch_reset(&(ph->reg_watch));
  56     pholder_deinit(&(ph->ph));
  57 }
  58
  59
  60 /*}}}*/
  61
  62
  63 /*{{{ Dynfuns */
  64
  65
  66 WRegion *basicpholder_do_attach(WBasicPHolder *ph, int flags,
  67                                 WRegionAttachData *data)
  68 {
  69     WRegion *reg=(WRegion*)ph->reg_watch.obj;
  70
  71     if(reg==NULL || ph->hnd==NULL)
  72         return FALSE;
  73
  74     return ph->hnd(reg, flags, data);
  75 }
  76
  77
  78 bool basicpholder_do_goto(WBasicPHolder *ph)
  79 {
  80     WRegion *reg=(WRegion*)ph->reg_watch.obj;
  81
  82     if(reg!=NULL)
  83         return region_goto((WRegion*)reg);
  84
  85     return FALSE;
  86 }
  87
  88
  89 WRegion *basicpholder_do_target(WBasicPHolder *ph)
  90 {
  91     return (WRegion*)ph->reg_watch.obj;
  92 }
  93
  94
  95 /*}}}*/
  96
  97
  98 /*{{{ Class information */
  99
 100
 101 static DynFunTab basicpholder_dynfuntab[]={
 102     {(DynFun*)pholder_do_attach,
 103      (DynFun*)basicpholder_do_attach},
 104
 105     {(DynFun*)pholder_do_goto,
 106      (DynFun*)basicpholder_do_goto},
 107
 108     {(DynFun*)pholder_do_target,
 109      (DynFun*)basicpholder_do_target},
 110
 111     END_DYNFUNTAB
 112 };
 113
 114 IMPLCLASS(WBasicPHolder, WPHolder, basicpholder_deinit,
 115           basicpholder_dynfuntab);
 116
 117
 118 /*}}}*/
 119