dlls/mshtml/selection.c

   1 /*
   2  * Copyright 2006 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 <stdarg.h>
  20
  21 #define COBJMACROS
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winuser.h"
  26 #include "ole2.h"
  27
  28 #include "wine/debug.h"
  29
  30 #include "mshtml_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  33
  34 typedef struct {
  35     IHTMLSelectionObject IHTMLSelectionObject_iface;
  36
  37     LONG ref;
  38
  39     nsISelection *nsselection;
  40     HTMLDocumentNode *doc;
  41
  42     struct list entry;
  43 } HTMLSelectionObject;
  44
  45 static inline HTMLSelectionObject *impl_from_IHTMLSelectionObject(IHTMLSelectionObject *iface)
  46 {
  47     return CONTAINING_RECORD(iface, HTMLSelectionObject, IHTMLSelectionObject_iface);
  48 }
  49
  50 static HRESULT WINAPI HTMLSelectionObject_QueryInterface(IHTMLSelectionObject *iface,
  51                                                          REFIID riid, void **ppv)
  52 {
  53     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
  54
  55     *ppv = NULL;
  56
  57     if(IsEqualGUID(&IID_IUnknown, riid)) {
  58         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  59         *ppv = &This->IHTMLSelectionObject_iface;
  60     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
  61         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  62         *ppv = &This->IHTMLSelectionObject_iface;
  63     }else if(IsEqualGUID(&IID_IHTMLSelectionObject, riid)) {
  64         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  65         *ppv = &This->IHTMLSelectionObject_iface;
  66     }
  67
  68     if(*ppv) {
  69         IUnknown_AddRef((IUnknown*)*ppv);
  70         return S_OK;
  71     }
  72
  73     WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
  74     return E_NOINTERFACE;
  75 }
  76
  77 static ULONG WINAPI HTMLSelectionObject_AddRef(IHTMLSelectionObject *iface)
  78 {
  79     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
  80     LONG ref = InterlockedIncrement(&This->ref);
  81
  82     TRACE("(%p) ref=%d\n", This, ref);
  83
  84     return ref;
  85 }
  86
  87 static ULONG WINAPI HTMLSelectionObject_Release(IHTMLSelectionObject *iface)
  88 {
  89     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
  90     LONG ref = InterlockedDecrement(&This->ref);
  91
  92     TRACE("(%p) ref=%d\n", This, ref);
  93
  94     if(!ref) {
  95         if(This->nsselection)
  96             nsISelection_Release(This->nsselection);
  97         if(This->doc)
  98             list_remove(&This->entry);
  99         heap_free(This);
 100     }
 101
 102     return ref;
 103 }
 104
 105 static HRESULT WINAPI HTMLSelectionObject_GetTypeInfoCount(IHTMLSelectionObject *iface, UINT *pctinfo)
 106 {
 107     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 108     FIXME("(%p)->(%p)\n", This, pctinfo);
 109     return E_NOTIMPL;
 110 }
 111
 112 static HRESULT WINAPI HTMLSelectionObject_GetTypeInfo(IHTMLSelectionObject *iface, UINT iTInfo,
 113                                               LCID lcid, ITypeInfo **ppTInfo)
 114 {
 115     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 116     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 117     return E_NOTIMPL;
 118 }
 119
 120 static HRESULT WINAPI HTMLSelectionObject_GetIDsOfNames(IHTMLSelectionObject *iface, REFIID riid,
 121                                                 LPOLESTR *rgszNames, UINT cNames,
 122                                                 LCID lcid, DISPID *rgDispId)
 123 {
 124     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 125     FIXME("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 126           lcid, rgDispId);
 127     return E_NOTIMPL;
 128 }
 129
 130 static HRESULT WINAPI HTMLSelectionObject_Invoke(IHTMLSelectionObject *iface, DISPID dispIdMember,
 131                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 132                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 133 {
 134     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 135     FIXME("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 136           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 137     return E_NOTIMPL;
 138 }
 139
 140 static HRESULT WINAPI HTMLSelectionObject_createRange(IHTMLSelectionObject *iface, IDispatch **range)
 141 {
 142     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 143     IHTMLTxtRange *range_obj = NULL;
 144     nsIDOMRange *nsrange = NULL;
 145     HRESULT hres;
 146
 147     TRACE("(%p)->(%p)\n", This, range);
 148
 149     if(This->nsselection) {
 150         PRInt32 nsrange_cnt = 0;
 151         nsresult nsres;
 152
 153         nsISelection_GetRangeCount(This->nsselection, &nsrange_cnt);
 154         if(!nsrange_cnt) {
 155             nsIDOMHTMLElement *nsbody = NULL;
 156
 157             TRACE("nsrange_cnt = 0\n");
 158
 159             if(!This->doc->nsdoc) {
 160                 WARN("nsdoc is NULL\n");
 161                 return E_UNEXPECTED;
 162             }
 163
 164             nsres = nsIDOMHTMLDocument_GetBody(This->doc->nsdoc, &nsbody);
 165             if(NS_FAILED(nsres) || !nsbody) {
 166                 ERR("Could not get body: %08x\n", nsres);
 167                 return E_FAIL;
 168             }
 169
 170             nsres = nsISelection_Collapse(This->nsselection, (nsIDOMNode*)nsbody, 0);
 171             nsIDOMHTMLElement_Release(nsbody);
 172             if(NS_FAILED(nsres))
 173                 ERR("Collapse failed: %08x\n", nsres);
 174         }else if(nsrange_cnt > 1) {
 175             FIXME("range_cnt = %d\n", nsrange_cnt);
 176         }
 177
 178         nsres = nsISelection_GetRangeAt(This->nsselection, 0, &nsrange);
 179         if(NS_FAILED(nsres))
 180             ERR("GetRangeAt failed: %08x\n", nsres);
 181     }
 182
 183     hres = HTMLTxtRange_Create(This->doc, nsrange, &range_obj);
 184
 185     if (nsrange) nsIDOMRange_Release(nsrange);
 186     *range = (IDispatch*)range_obj;
 187     return hres;
 188 }
 189
 190 static HRESULT WINAPI HTMLSelectionObject_empty(IHTMLSelectionObject *iface)
 191 {
 192     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 193     FIXME("(%p)\n", This);
 194     return E_NOTIMPL;
 195 }
 196
 197 static HRESULT WINAPI HTMLSelectionObject_clear(IHTMLSelectionObject *iface)
 198 {
 199     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 200     FIXME("(%p)\n", This);
 201     return E_NOTIMPL;
 202 }
 203
 204 static HRESULT WINAPI HTMLSelectionObject_get_type(IHTMLSelectionObject *iface, BSTR *p)
 205 {
 206     HTMLSelectionObject *This = impl_from_IHTMLSelectionObject(iface);
 207     PRBool collapsed = TRUE;
 208
 209     static const WCHAR wszNone[] = {'N','o','n','e',0};
 210     static const WCHAR wszText[] = {'T','e','x','t',0};
 211
 212     TRACE("(%p)->(%p)\n", This, p);
 213
 214     if(This->nsselection)
 215         nsISelection_GetIsCollapsed(This->nsselection, &collapsed);
 216
 217     *p = SysAllocString(collapsed ? wszNone : wszText); /* FIXME: control */
 218     TRACE("ret %s\n", debugstr_w(*p));
 219     return S_OK;
 220 }
 221
 222 static const IHTMLSelectionObjectVtbl HTMLSelectionObjectVtbl = {
 223     HTMLSelectionObject_QueryInterface,
 224     HTMLSelectionObject_AddRef,
 225     HTMLSelectionObject_Release,
 226     HTMLSelectionObject_GetTypeInfoCount,
 227     HTMLSelectionObject_GetTypeInfo,
 228     HTMLSelectionObject_GetIDsOfNames,
 229     HTMLSelectionObject_Invoke,
 230     HTMLSelectionObject_createRange,
 231     HTMLSelectionObject_empty,
 232     HTMLSelectionObject_clear,
 233     HTMLSelectionObject_get_type
 234 };
 235
 236 HRESULT HTMLSelectionObject_Create(HTMLDocumentNode *doc, nsISelection *nsselection, IHTMLSelectionObject **ret)
 237 {
 238     HTMLSelectionObject *selection;
 239
 240     selection = heap_alloc(sizeof(HTMLSelectionObject));
 241     if(!selection)
 242         return E_OUTOFMEMORY;
 243
 244     selection->IHTMLSelectionObject_iface.lpVtbl = &HTMLSelectionObjectVtbl;
 245     selection->ref = 1;
 246     selection->nsselection = nsselection; /* We shouldn't call AddRef here */
 247
 248     selection->doc = doc;
 249     list_add_head(&doc->selection_list, &selection->entry);
 250
 251     *ret = &selection->IHTMLSelectionObject_iface;
 252     return S_OK;
 253 }
 254
 255 void detach_selection(HTMLDocumentNode *This)
 256 {
 257     HTMLSelectionObject *iter;
 258
 259     LIST_FOR_EACH_ENTRY(iter, &This->selection_list, HTMLSelectionObject, entry) {
 260         iter->doc = NULL;
 261     }
 262 }