dlls/jscript/object.c

   1 /*
   2  * Copyright 2008 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "jscript.h"
  20
  21 #include "wine/debug.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
  24
  25 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
  26 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','S','t','r','i','n','g',0};
  27 static const WCHAR valueOfW[] = {'v','a','l','u','e','O','f',0};
  28 static const WCHAR hasOwnPropertyW[] = {'h','a','s','O','w','n','P','r','o','p','e','r','t','y',0};
  29 static const WCHAR propertyIsEnumerableW[] =
  30     {'p','r','o','p','e','r','t','y','I','s','E','n','u','m','e','r','a','b','l','e',0};
  31 static const WCHAR isPrototypeOfW[] = {'i','s','P','r','o','t','o','t','y','p','e','O','f',0};
  32
  33 static const WCHAR default_valueW[] = {'[','o','b','j','e','c','t',' ','O','b','j','e','c','t',']',0};
  34
  35 static HRESULT Object_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  36         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  37 {
  38     TRACE("\n");
  39
  40     if(retv) {
  41         V_VT(retv) = VT_BSTR;
  42         V_BSTR(retv) = SysAllocString(default_valueW);
  43         if(!V_BSTR(retv))
  44             return E_OUTOFMEMORY;
  45     }
  46
  47     return S_OK;
  48 }
  49
  50 static HRESULT Object_toLocaleString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  51         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  52 {
  53     TRACE("\n");
  54     return Object_toString(dispex, lcid, flags, dp, retv, ei, sp);
  55 }
  56
  57 static HRESULT Object_valueOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  58         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  59 {
  60     TRACE("\n");
  61
  62     if(retv) {
  63         IDispatchEx_AddRef(_IDispatchEx_(dispex));
  64
  65         V_VT(retv) = VT_DISPATCH;
  66         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(dispex);
  67     }
  68
  69     return S_OK;
  70 }
  71
  72 static HRESULT Object_hasOwnProperty(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  73         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  74 {
  75     FIXME("\n");
  76     return E_NOTIMPL;
  77 }
  78
  79 static HRESULT Object_propertyIsEnumerable(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  80         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  81 {
  82     FIXME("\n");
  83     return E_NOTIMPL;
  84 }
  85
  86 static HRESULT Object_isPrototypeOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  87         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  88 {
  89     FIXME("\n");
  90     return E_NOTIMPL;
  91 }
  92
  93 static HRESULT Object_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
  94         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
  95 {
  96     TRACE("\n");
  97
  98     switch(flags) {
  99     case DISPATCH_PROPERTYGET:
 100         V_VT(retv) = VT_BSTR;
 101         V_BSTR(retv) = SysAllocString(default_valueW);
 102         if(!V_BSTR(retv))
 103             return E_OUTOFMEMORY;
 104         break;
 105     default:
 106         FIXME("unimplemented flags %x\n", flags);
 107         return E_NOTIMPL;
 108     }
 109
 110     return S_OK;
 111 }
 112
 113 static void Object_destructor(DispatchEx *dispex)
 114 {
 115     heap_free(dispex);
 116 }
 117
 118 static const builtin_prop_t Object_props[] = {
 119     {hasOwnPropertyW,        Object_hasOwnProperty,        PROPF_METHOD},
 120     {isPrototypeOfW,         Object_isPrototypeOf,         PROPF_METHOD},
 121     {propertyIsEnumerableW,  Object_propertyIsEnumerable,  PROPF_METHOD},
 122     {toLocaleStringW,        Object_toLocaleString,        PROPF_METHOD},
 123     {toStringW,              Object_toString,              PROPF_METHOD},
 124     {valueOfW,               Object_valueOf,               PROPF_METHOD}
 125 };
 126
 127 static const builtin_info_t Object_info = {
 128     JSCLASS_OBJECT,
 129     {NULL, Object_value, 0},
 130     sizeof(Object_props)/sizeof(*Object_props),
 131     Object_props,
 132     Object_destructor,
 133     NULL
 134 };
 135
 136 static HRESULT ObjectConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
 137         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 138 {
 139     HRESULT hres;
 140
 141     TRACE("\n");
 142
 143     switch(flags) {
 144     case DISPATCH_CONSTRUCT: {
 145         DispatchEx *obj;
 146
 147         hres = create_object(dispex->ctx, NULL, &obj);
 148         if(FAILED(hres))
 149             return hres;
 150
 151         V_VT(retv) = VT_DISPATCH;
 152         V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(obj);
 153         break;
 154     }
 155
 156     default:
 157         FIXME("unimplemented flags: %x\n", flags);
 158         return E_NOTIMPL;
 159     }
 160
 161     return S_OK;
 162 }
 163
 164 HRESULT create_object_constr(script_ctx_t *ctx, DispatchEx *object_prototype, DispatchEx **ret)
 165 {
 166     return create_builtin_function(ctx, ObjectConstr_value, NULL, PROPF_CONSTR,
 167             object_prototype, ret);
 168 }
 169
 170 HRESULT create_object_prototype(script_ctx_t *ctx, DispatchEx **ret)
 171 {
 172     return create_dispex(ctx, &Object_info, NULL, ret);
 173 }
 174
 175 HRESULT create_object(script_ctx_t *ctx, DispatchEx *constr, DispatchEx **ret)
 176 {
 177     DispatchEx *object;
 178     HRESULT hres;
 179
 180     object = heap_alloc_zero(sizeof(DispatchEx));
 181     if(!object)
 182         return E_OUTOFMEMORY;
 183
 184     hres = init_dispex_from_constr(object, ctx, &Object_info, constr ? constr : ctx->object_constr);
 185     if(FAILED(hres)) {
 186         heap_free(object);
 187         return hres;
 188     }
 189
 190     *ret = object;
 191     return S_OK;
 192 }