dlls/mshtml/htmlattr.c

   1 /*
   2  * Copyright 2011 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
  20 #include <stdarg.h>
  21 #include <assert.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29
  30 #include "mshtml_private.h"
  31
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  35
  36 static inline HTMLDOMAttribute *impl_from_IHTMLDOMAttribute(IHTMLDOMAttribute *iface)
  37 {
  38     return CONTAINING_RECORD(iface, HTMLDOMAttribute, IHTMLDOMAttribute_iface);
  39 }
  40
  41 static HRESULT WINAPI HTMLDOMAttribute_QueryInterface(IHTMLDOMAttribute *iface,
  42                                                  REFIID riid, void **ppv)
  43 {
  44     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
  45
  46     if(IsEqualGUID(&IID_IUnknown, riid)) {
  47         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  48         *ppv = &This->IHTMLDOMAttribute_iface;
  49     }else if(IsEqualGUID(&IID_IHTMLDOMAttribute, riid)) {
  50         TRACE("(%p)->(IID_IHTMLDOMAttribute %p)\n", This, ppv);
  51         *ppv = &This->IHTMLDOMAttribute_iface;
  52     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
  53         return *ppv ? S_OK : E_NOINTERFACE;
  54     }else {
  55         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
  56         *ppv =  NULL;
  57         return E_NOINTERFACE;
  58     }
  59
  60     IUnknown_AddRef((IUnknown*)*ppv);
  61     return S_OK;
  62 }
  63
  64 static ULONG WINAPI HTMLDOMAttribute_AddRef(IHTMLDOMAttribute *iface)
  65 {
  66     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
  67     LONG ref = InterlockedIncrement(&This->ref);
  68
  69     TRACE("(%p) ref=%d\n", This, ref);
  70
  71     return ref;
  72 }
  73
  74 static ULONG WINAPI HTMLDOMAttribute_Release(IHTMLDOMAttribute *iface)
  75 {
  76     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
  77     LONG ref = InterlockedDecrement(&This->ref);
  78
  79     TRACE("(%p) ref=%d\n", This, ref);
  80
  81     if(!ref) {
  82         assert(!This->elem);
  83         release_dispex(&This->dispex);
  84         heap_free(This);
  85     }
  86
  87     return ref;
  88 }
  89
  90 static HRESULT WINAPI HTMLDOMAttribute_GetTypeInfoCount(IHTMLDOMAttribute *iface, UINT *pctinfo)
  91 {
  92     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
  93     return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
  94 }
  95
  96 static HRESULT WINAPI HTMLDOMAttribute_GetTypeInfo(IHTMLDOMAttribute *iface, UINT iTInfo,
  97                                               LCID lcid, ITypeInfo **ppTInfo)
  98 {
  99     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 100     return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface, iTInfo, lcid, ppTInfo);
 101 }
 102
 103 static HRESULT WINAPI HTMLDOMAttribute_GetIDsOfNames(IHTMLDOMAttribute *iface, REFIID riid,
 104                                                 LPOLESTR *rgszNames, UINT cNames,
 105                                                 LCID lcid, DISPID *rgDispId)
 106 {
 107     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 108     return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface, riid, rgszNames, cNames,
 109             lcid, rgDispId);
 110 }
 111
 112 static HRESULT WINAPI HTMLDOMAttribute_Invoke(IHTMLDOMAttribute *iface, DISPID dispIdMember,
 113                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 114                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 115 {
 116     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 117     return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface, dispIdMember, riid, lcid,
 118             wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 119 }
 120
 121 static HRESULT WINAPI HTMLDOMAttribute_get_nodeName(IHTMLDOMAttribute *iface, BSTR *p)
 122 {
 123     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 124
 125     TRACE("(%p)->(%p)\n", This, p);
 126
 127     return IDispatchEx_GetMemberName(&This->elem->node.dispex.IDispatchEx_iface, This->dispid, p);
 128 }
 129
 130 static HRESULT WINAPI HTMLDOMAttribute_put_nodeName(IHTMLDOMAttribute *iface, VARIANT v)
 131 {
 132     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 133     FIXME("(%p)->(%s)\n", This, debugstr_variant(&v));
 134     return E_NOTIMPL;
 135 }
 136
 137 static HRESULT WINAPI HTMLDOMAttribute_get_nodeValue(IHTMLDOMAttribute *iface, VARIANT *p)
 138 {
 139     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 140     DISPPARAMS dp = {NULL, NULL, 0, 0};
 141     EXCEPINFO ei;
 142
 143     TRACE("(%p)->(%p)\n", This, p);
 144
 145     if(!This->elem) {
 146         FIXME("NULL This->elem\n");
 147         return E_UNEXPECTED;
 148     }
 149
 150     memset(&ei, 0, sizeof(ei));
 151     return IDispatchEx_InvokeEx(&This->elem->node.dispex.IDispatchEx_iface, This->dispid, LOCALE_SYSTEM_DEFAULT,
 152             DISPATCH_PROPERTYGET, &dp, p, &ei, NULL);
 153 }
 154
 155 static HRESULT WINAPI HTMLDOMAttribute_get_specified(IHTMLDOMAttribute *iface, VARIANT_BOOL *p)
 156 {
 157     HTMLDOMAttribute *This = impl_from_IHTMLDOMAttribute(iface);
 158     nsIDOMAttr *nsattr;
 159     nsAString nsname;
 160     BSTR name;
 161     nsresult nsres;
 162     HRESULT hres;
 163
 164     TRACE("(%p)->(%p)\n", This, p);
 165
 166     if(get_dispid_type(This->dispid) != DISPEXPROP_BUILTIN) {
 167         *p = VARIANT_TRUE;
 168         return S_OK;
 169     }
 170
 171     if(!This->elem || !This->elem->nselem) {
 172         FIXME("NULL This->elem\n");
 173         return E_UNEXPECTED;
 174     }
 175
 176     hres = IDispatchEx_GetMemberName(&This->elem->node.dispex.IDispatchEx_iface, This->dispid, &name);
 177     if(FAILED(hres))
 178         return hres;
 179
 180     /* FIXME: This is not exactly right, we have some attributes that don't map directly to Gecko attributes. */
 181     nsAString_InitDepend(&nsname, name);
 182     nsres = nsIDOMHTMLElement_GetAttributeNode(This->elem->nselem, &nsname, &nsattr);
 183     nsAString_Finish(&nsname);
 184     SysFreeString(name);
 185     if(NS_FAILED(nsres))
 186         return E_FAIL;
 187
 188     /* If the Gecko attribute node can be found, we know that the attribute is specified.
 189        There is no point in calling GetSpecified */
 190     if(nsattr) {
 191         nsIDOMAttr_Release(nsattr);
 192         *p = VARIANT_TRUE;
 193     }else {
 194         *p = VARIANT_FALSE;
 195     }
 196     return S_OK;
 197 }
 198
 199 static const IHTMLDOMAttributeVtbl HTMLDOMAttributeVtbl = {
 200     HTMLDOMAttribute_QueryInterface,
 201     HTMLDOMAttribute_AddRef,
 202     HTMLDOMAttribute_Release,
 203     HTMLDOMAttribute_GetTypeInfoCount,
 204     HTMLDOMAttribute_GetTypeInfo,
 205     HTMLDOMAttribute_GetIDsOfNames,
 206     HTMLDOMAttribute_Invoke,
 207     HTMLDOMAttribute_get_nodeName,
 208     HTMLDOMAttribute_put_nodeName,
 209     HTMLDOMAttribute_get_nodeValue,
 210     HTMLDOMAttribute_get_specified
 211 };
 212
 213 static const tid_t HTMLDOMAttribute_iface_tids[] = {
 214     IHTMLDOMAttribute_tid,
 215     0
 216 };
 217 static dispex_static_data_t HTMLDOMAttribute_dispex = {
 218     NULL,
 219     DispHTMLDOMAttribute_tid,
 220     0,
 221     HTMLDOMAttribute_iface_tids
 222 };
 223
 224 HRESULT HTMLDOMAttribute_Create(HTMLElement *elem, DISPID dispid, HTMLDOMAttribute **attr)
 225 {
 226     HTMLAttributeCollection *col;
 227     HTMLDOMAttribute *ret;
 228     HRESULT hres;
 229
 230     ret = heap_alloc_zero(sizeof(*ret));
 231     if(!ret)
 232         return E_OUTOFMEMORY;
 233
 234     hres = HTMLElement_get_attr_col(&elem->node, &col);
 235     if(FAILED(hres)) {
 236         heap_free(ret);
 237         return hres;
 238     }
 239     IHTMLAttributeCollection_Release(&col->IHTMLAttributeCollection_iface);
 240
 241     ret->IHTMLDOMAttribute_iface.lpVtbl = &HTMLDOMAttributeVtbl;
 242     ret->ref = 1;
 243
 244     ret->dispid = dispid;
 245     ret->elem = elem;
 246     list_add_tail(&elem->attrs->attrs, &ret->entry);
 247
 248     init_dispex(&ret->dispex, (IUnknown*)&ret->IHTMLDOMAttribute_iface,
 249             &HTMLDOMAttribute_dispex);
 250
 251     *attr = ret;
 252     return S_OK;
 253 }