git.oblomov.eu Git - wine/blob - dlls/mshtml/htmlevent.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 <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 "mshtml_private.h"
  29 #include "htmlevent.h"
  30
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  34
  35 struct event_target_t {
  36     IDispatch *event_table[EVENTID_LAST];
  37 };
  38
  39 static const WCHAR blurW[] = {'b','l','u','r',0};
  40 static const WCHAR onblurW[] = {'o','n','b','l','u','r',0};
  41
  42 static const WCHAR changeW[] = {'c','h','a','n','g','e',0};
  43 static const WCHAR onchangeW[] = {'o','n','c','h','a','n','g','e',0};
  44
  45 static const WCHAR clickW[] = {'c','l','i','c','k',0};
  46 static const WCHAR onclickW[] = {'o','n','c','l','i','c','k',0};
  47
  48 static const WCHAR dragW[] = {'d','r','a','g',0};
  49 static const WCHAR ondragW[] = {'o','n','d','r','a','g',0};
  50
  51 static const WCHAR dragstartW[] = {'d','r','a','g','s','t','a','r','t',0};
  52 static const WCHAR ondragstartW[] = {'o','n','d','r','a','g','s','t','a','r','t',0};
  53
  54 static const WCHAR focusW[] = {'f','o','c','u','s',0};
  55 static const WCHAR onfocusW[] = {'o','n','f','o','c','u','s',0};
  56
  57 static const WCHAR keydownW[] = {'k','e','y','d','o','w','n',0};
  58 static const WCHAR onkeydownW[] = {'o','n','k','e','y','d','o','w','n',0};
  59
  60 static const WCHAR keyupW[] = {'k','e','y','u','p',0};
  61 static const WCHAR onkeyupW[] = {'o','n','k','e','y','u','p',0};
  62
  63 static const WCHAR loadW[] = {'l','o','a','d',0};
  64 static const WCHAR onloadW[] = {'o','n','l','o','a','d',0};
  65
  66 static const WCHAR mousedownW[] = {'m','o','u','s','e','d','o','w','n',0};
  67 static const WCHAR onmousedownW[] = {'o','n','m','o','u','s','e','d','o','w','n',0};
  68
  69 static const WCHAR mouseoutW[] = {'m','o','u','s','e','o','u','t',0};
  70 static const WCHAR onmouseoutW[] = {'o','n','m','o','u','s','e','o','u','t',0};
  71
  72 static const WCHAR mouseoverW[] = {'m','o','u','s','e','o','v','e','r',0};
  73 static const WCHAR onmouseoverW[] = {'o','n','m','o','u','s','e','o','v','e','r',0};
  74
  75 static const WCHAR mouseupW[] = {'m','o','u','s','e','u','p',0};
  76 static const WCHAR onmouseupW[] = {'o','n','m','o','u','s','e','u','p',0};
  77
  78 static const WCHAR pasteW[] = {'p','a','s','t','e',0};
  79 static const WCHAR onpasteW[] = {'o','n','p','a','s','t','e',0};
  80
  81 static const WCHAR selectstartW[] = {'s','e','l','e','c','t','s','t','a','r','t',0};
  82 static const WCHAR onselectstartW[] = {'o','n','s','e','l','e','c','t','s','t','a','r','t',0};
  83
  84 typedef struct {
  85     LPCWSTR name;
  86     LPCWSTR attr_name;
  87     DWORD flags;
  88 } event_info_t;
  89
  90 #define EVENT_DEFAULTLISTENER    0x0001
  91 #define EVENT_BUBBLE             0x0002
  92
  93 static const event_info_t event_info[] = {
  94     {blurW,         onblurW,         EVENT_DEFAULTLISTENER},
  95     {changeW,       onchangeW,       EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
  96     {clickW,        onclickW,        EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
  97     {dragW,         ondragW,         0},
  98     {dragstartW,    ondragstartW,    0},
  99     {focusW,        onfocusW,        EVENT_DEFAULTLISTENER},
 100     {keydownW,      onkeydownW,      EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 101     {keyupW,        onkeyupW,        EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 102     {loadW,         onloadW,         0},
 103     {mousedownW,    onmousedownW,    EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 104     {mouseoutW,     onmouseoutW,     EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 105     {mouseoverW,    onmouseoverW,    EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 106     {mouseupW,      onmouseupW,      EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 107     {pasteW,        onpasteW,        0},
 108     {selectstartW,  onselectstartW,  0}
 109 };
 110
 111 eventid_t str_to_eid(LPCWSTR str)
 112 {
 113     int i;
 114
 115     for(i=0; i < sizeof(event_info)/sizeof(event_info[0]); i++) {
 116         if(!strcmpW(event_info[i].name, str))
 117             return i;
 118     }
 119
 120     ERR("unknown type %s\n", debugstr_w(str));
 121     return EVENTID_LAST;
 122 }
 123
 124 typedef struct {
 125     DispatchEx dispex;
 126     const IHTMLEventObjVtbl  *lpIHTMLEventObjVtbl;
 127
 128     LONG ref;
 129
 130     HTMLDOMNode *target;
 131 } HTMLEventObj;
 132
 133 #define HTMLEVENTOBJ(x) ((IHTMLEventObj*) &(x)->lpIHTMLEventObjVtbl)
 134
 135 #define HTMLEVENTOBJ_THIS(iface) DEFINE_THIS(HTMLEventObj, IHTMLEventObj, iface)
 136
 137 static HRESULT WINAPI HTMLEventObj_QueryInterface(IHTMLEventObj *iface, REFIID riid, void **ppv)
 138 {
 139     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 140
 141     *ppv = NULL;
 142
 143     if(IsEqualGUID(&IID_IUnknown, riid)) {
 144         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 145         *ppv = HTMLEVENTOBJ(This);
 146     }else if(IsEqualGUID(&IID_IHTMLEventObj, riid)) {
 147         TRACE("(%p)->(IID_IHTMLEventObj %p)\n", This, ppv);
 148         *ppv = HTMLEVENTOBJ(This);
 149     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
 150         return *ppv ? S_OK : E_NOINTERFACE;
 151     }
 152
 153     if(*ppv) {
 154         IUnknown_AddRef((IUnknown*)*ppv);
 155         return S_OK;
 156     }
 157
 158     WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 159     return E_NOINTERFACE;
 160 }
 161
 162 static ULONG WINAPI HTMLEventObj_AddRef(IHTMLEventObj *iface)
 163 {
 164     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 165     LONG ref = InterlockedIncrement(&This->ref);
 166
 167     TRACE("(%p) ref=%d\n", This, ref);
 168
 169     return ref;
 170 }
 171
 172 static ULONG WINAPI HTMLEventObj_Release(IHTMLEventObj *iface)
 173 {
 174     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 175     LONG ref = InterlockedDecrement(&This->ref);
 176
 177     TRACE("(%p) ref=%d\n", This, ref);
 178
 179     if(!ref) {
 180         release_dispex(&This->dispex);
 181         heap_free(This);
 182     }
 183
 184     return ref;
 185 }
 186
 187 static HRESULT WINAPI HTMLEventObj_GetTypeInfoCount(IHTMLEventObj *iface, UINT *pctinfo)
 188 {
 189     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 190     FIXME("(%p)->(%p)\n", This, pctinfo);
 191     return E_NOTIMPL;
 192 }
 193
 194 static HRESULT WINAPI HTMLEventObj_GetTypeInfo(IHTMLEventObj *iface, UINT iTInfo,
 195                                               LCID lcid, ITypeInfo **ppTInfo)
 196 {
 197     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 198     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 199     return E_NOTIMPL;
 200 }
 201
 202 static HRESULT WINAPI HTMLEventObj_GetIDsOfNames(IHTMLEventObj *iface, REFIID riid,
 203                                                 LPOLESTR *rgszNames, UINT cNames,
 204                                                 LCID lcid, DISPID *rgDispId)
 205 {
 206     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 207     FIXME("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 208           lcid, rgDispId);
 209     return E_NOTIMPL;
 210 }
 211
 212 static HRESULT WINAPI HTMLEventObj_Invoke(IHTMLEventObj *iface, DISPID dispIdMember,
 213                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 214                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 215 {
 216     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 217     FIXME("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 218           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 219     return E_NOTIMPL;
 220 }
 221
 222 static HRESULT WINAPI HTMLEventObj_get_srcElement(IHTMLEventObj *iface, IHTMLElement **p)
 223 {
 224     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 225
 226     TRACE("(%p)->(%p)\n", This, p);
 227
 228     return IHTMLDOMNode_QueryInterface(HTMLDOMNODE(This->target), &IID_IHTMLElement, (void**)p);
 229 }
 230
 231 static HRESULT WINAPI HTMLEventObj_get_altKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
 232 {
 233     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 234     FIXME("(%p)->(%p)\n", This, p);
 235     return E_NOTIMPL;
 236 }
 237
 238 static HRESULT WINAPI HTMLEventObj_get_ctrlKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
 239 {
 240     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 241     FIXME("(%p)->(%p)\n", This, p);
 242     return E_NOTIMPL;
 243 }
 244
 245 static HRESULT WINAPI HTMLEventObj_get_shiftKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
 246 {
 247     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 248     FIXME("(%p)->(%p)\n", This, p);
 249     return E_NOTIMPL;
 250 }
 251
 252 static HRESULT WINAPI HTMLEventObj_put_returnValue(IHTMLEventObj *iface, VARIANT v)
 253 {
 254     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 255     FIXME("(%p)->()\n", This);
 256     return E_NOTIMPL;
 257 }
 258
 259 static HRESULT WINAPI HTMLEventObj_get_returnValue(IHTMLEventObj *iface, VARIANT *p)
 260 {
 261     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 262     FIXME("(%p)->(%p)\n", This, p);
 263     return E_NOTIMPL;
 264 }
 265
 266 static HRESULT WINAPI HTMLEventObj_put_cancelBubble(IHTMLEventObj *iface, VARIANT_BOOL v)
 267 {
 268     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 269     FIXME("(%p)->(%x)\n", This, v);
 270     return E_NOTIMPL;
 271 }
 272
 273 static HRESULT WINAPI HTMLEventObj_get_cancelBubble(IHTMLEventObj *iface, VARIANT_BOOL *p)
 274 {
 275     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 276     FIXME("(%p)->(%p)\n", This, p);
 277     return E_NOTIMPL;
 278 }
 279
 280 static HRESULT WINAPI HTMLEventObj_get_fromElement(IHTMLEventObj *iface, IHTMLElement **p)
 281 {
 282     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 283     FIXME("(%p)->(%p)\n", This, p);
 284     return E_NOTIMPL;
 285 }
 286
 287 static HRESULT WINAPI HTMLEventObj_get_toElement(IHTMLEventObj *iface, IHTMLElement **p)
 288 {
 289     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 290     FIXME("(%p)->(%p)\n", This, p);
 291     return E_NOTIMPL;
 292 }
 293
 294 static HRESULT WINAPI HTMLEventObj_put_keyCode(IHTMLEventObj *iface, LONG v)
 295 {
 296     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 297     FIXME("(%p)->(%d)\n", This, v);
 298     return E_NOTIMPL;
 299 }
 300
 301 static HRESULT WINAPI HTMLEventObj_get_keyCode(IHTMLEventObj *iface, LONG *p)
 302 {
 303     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 304     FIXME("(%p)->(%p)\n", This, p);
 305     return E_NOTIMPL;
 306 }
 307
 308 static HRESULT WINAPI HTMLEventObj_get_button(IHTMLEventObj *iface, LONG *p)
 309 {
 310     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 311     FIXME("(%p)->(%p)\n", This, p);
 312     return E_NOTIMPL;
 313 }
 314
 315 static HRESULT WINAPI HTMLEventObj_get_type(IHTMLEventObj *iface, BSTR *p)
 316 {
 317     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 318     FIXME("(%p)->(%p)\n", This, p);
 319     return E_NOTIMPL;
 320 }
 321
 322 static HRESULT WINAPI HTMLEventObj_get_qualifier(IHTMLEventObj *iface, BSTR *p)
 323 {
 324     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 325     FIXME("(%p)->(%p)\n", This, p);
 326     return E_NOTIMPL;
 327 }
 328
 329 static HRESULT WINAPI HTMLEventObj_get_reason(IHTMLEventObj *iface, LONG *p)
 330 {
 331     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 332     FIXME("(%p)->(%p)\n", This, p);
 333     return E_NOTIMPL;
 334 }
 335
 336 static HRESULT WINAPI HTMLEventObj_get_x(IHTMLEventObj *iface, LONG *p)
 337 {
 338     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 339     FIXME("(%p)->(%p)\n", This, p);
 340     return E_NOTIMPL;
 341 }
 342
 343 static HRESULT WINAPI HTMLEventObj_get_y(IHTMLEventObj *iface, LONG *p)
 344 {
 345     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 346     FIXME("(%p)->(%p)\n", This, p);
 347     return E_NOTIMPL;
 348 }
 349
 350 static HRESULT WINAPI HTMLEventObj_get_clientX(IHTMLEventObj *iface, LONG *p)
 351 {
 352     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 353     FIXME("(%p)->(%p)\n", This, p);
 354     return E_NOTIMPL;
 355 }
 356
 357 static HRESULT WINAPI HTMLEventObj_get_clientY(IHTMLEventObj *iface, LONG *p)
 358 {
 359     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 360     FIXME("(%p)->(%p)\n", This, p);
 361     return E_NOTIMPL;
 362 }
 363
 364 static HRESULT WINAPI HTMLEventObj_get_offsetX(IHTMLEventObj *iface, LONG *p)
 365 {
 366     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 367     FIXME("(%p)->(%p)\n", This, p);
 368     return E_NOTIMPL;
 369 }
 370
 371 static HRESULT WINAPI HTMLEventObj_get_offsetY(IHTMLEventObj *iface, LONG *p)
 372 {
 373     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 374     FIXME("(%p)->(%p)\n", This, p);
 375     return E_NOTIMPL;
 376 }
 377
 378 static HRESULT WINAPI HTMLEventObj_get_screenX(IHTMLEventObj *iface, LONG *p)
 379 {
 380     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 381     FIXME("(%p)->(%p)\n", This, p);
 382     return E_NOTIMPL;
 383 }
 384
 385 static HRESULT WINAPI HTMLEventObj_get_screenY(IHTMLEventObj *iface, LONG *p)
 386 {
 387     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 388     FIXME("(%p)->(%p)\n", This, p);
 389     return E_NOTIMPL;
 390 }
 391
 392 static HRESULT WINAPI HTMLEventObj_get_srcFilter(IHTMLEventObj *iface, IDispatch **p)
 393 {
 394     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
 395     FIXME("(%p)->(%p)\n", This, p);
 396     return E_NOTIMPL;
 397 }
 398
 399 #undef HTMLEVENTOBJ_THIS
 400
 401 static const IHTMLEventObjVtbl HTMLEventObjVtbl = {
 402     HTMLEventObj_QueryInterface,
 403     HTMLEventObj_AddRef,
 404     HTMLEventObj_Release,
 405     HTMLEventObj_GetTypeInfoCount,
 406     HTMLEventObj_GetTypeInfo,
 407     HTMLEventObj_GetIDsOfNames,
 408     HTMLEventObj_Invoke,
 409     HTMLEventObj_get_srcElement,
 410     HTMLEventObj_get_altKey,
 411     HTMLEventObj_get_ctrlKey,
 412     HTMLEventObj_get_shiftKey,
 413     HTMLEventObj_put_returnValue,
 414     HTMLEventObj_get_returnValue,
 415     HTMLEventObj_put_cancelBubble,
 416     HTMLEventObj_get_cancelBubble,
 417     HTMLEventObj_get_fromElement,
 418     HTMLEventObj_get_toElement,
 419     HTMLEventObj_put_keyCode,
 420     HTMLEventObj_get_keyCode,
 421     HTMLEventObj_get_button,
 422     HTMLEventObj_get_type,
 423     HTMLEventObj_get_qualifier,
 424     HTMLEventObj_get_reason,
 425     HTMLEventObj_get_x,
 426     HTMLEventObj_get_y,
 427     HTMLEventObj_get_clientX,
 428     HTMLEventObj_get_clientY,
 429     HTMLEventObj_get_offsetX,
 430     HTMLEventObj_get_offsetY,
 431     HTMLEventObj_get_screenX,
 432     HTMLEventObj_get_screenY,
 433     HTMLEventObj_get_srcFilter
 434 };
 435
 436 static const tid_t HTMLEventObj_iface_tids[] = {
 437     IHTMLEventObj_tid,
 438     0
 439 };
 440
 441 static dispex_static_data_t HTMLEventObj_dispex = {
 442     NULL,
 443     DispCEventObj_tid,
 444     NULL,
 445     HTMLEventObj_iface_tids
 446 };
 447
 448 static IHTMLEventObj *create_event(HTMLDOMNode *target)
 449 {
 450     HTMLEventObj *ret;
 451
 452     ret = heap_alloc(sizeof(*ret));
 453     ret->lpIHTMLEventObjVtbl = &HTMLEventObjVtbl;
 454     ret->ref = 1;
 455     ret->target = target;
 456     IHTMLDOMNode_AddRef(HTMLDOMNODE(target));
 457
 458     init_dispex(&ret->dispex, (IUnknown*)HTMLEVENTOBJ(ret), &HTMLEventObj_dispex);
 459
 460     return HTMLEVENTOBJ(ret);
 461 }
 462
 463 void fire_event(HTMLDocument *doc, eventid_t eid, nsIDOMNode *target)
 464 {
 465     IHTMLEventObj *prev_event, *event_obj = NULL;
 466     nsIDOMNode *parent, *nsnode;
 467     HTMLDOMNode *node;
 468     PRUint16 node_type;
 469
 470     nsIDOMNode_GetNodeType(target, &node_type);
 471     if(node_type != ELEMENT_NODE) {
 472         FIXME("node type %d node supported\n", node_type);
 473         return;
 474     }
 475
 476     prev_event = doc->window->event;
 477     nsnode = target;
 478     nsIDOMNode_AddRef(nsnode);
 479
 480     while(1) {
 481         node = get_node(doc, nsnode, FALSE);
 482
 483         if(node && node->event_target && node->event_target->event_table[eid]) {
 484             if(!event_obj)
 485                 event_obj = doc->window->event = create_event(get_node(doc, target, TRUE));
 486
 487             TRACE("%s >>>\n", debugstr_w(event_info[eid].name));
 488             call_disp_func(doc, node->event_target->event_table[eid], (IDispatch*)HTMLDOMNODE(node));
 489             TRACE("%s <<<\n", debugstr_w(event_info[eid].name));
 490         }
 491
 492         if(!(event_info[eid].flags & EVENT_BUBBLE))
 493             break;
 494
 495         nsIDOMNode_GetParentNode(nsnode, &parent);
 496         nsIDOMNode_Release(nsnode);
 497         nsnode = parent;
 498         if(!nsnode)
 499             break;
 500
 501         nsIDOMNode_GetNodeType(nsnode, &node_type);
 502         if(node_type != ELEMENT_NODE)
 503             break;
 504     }
 505
 506     if(nsnode)
 507         nsIDOMNode_Release(nsnode);
 508
 509     if((event_info[eid].flags & EVENT_BUBBLE) && doc->event_target && doc->event_target->event_table[eid]) {
 510         if(!event_obj)
 511             event_obj = doc->window->event = create_event(get_node(doc, target, TRUE));
 512
 513         TRACE("doc %s >>>\n", debugstr_w(event_info[eid].name));
 514         call_disp_func(doc, doc->event_target->event_table[eid], (IDispatch*)HTMLDOC(doc));
 515         TRACE("doc %s <<<\n", debugstr_w(event_info[eid].name));
 516     }
 517
 518     if(event_obj) {
 519         IHTMLEventObj_Release(event_obj);
 520         doc->window->event = prev_event;
 521     }
 522 }
 523
 524 static HRESULT set_event_handler_disp(event_target_t **event_target, HTMLDocument *doc, eventid_t eid, IDispatch *disp)
 525 {
 526     if(!*event_target)
 527         *event_target = heap_alloc_zero(sizeof(event_target_t));
 528     else if((*event_target)->event_table[eid])
 529         IDispatch_Release((*event_target)->event_table[eid]);
 530
 531     (*event_target)->event_table[eid] = disp;
 532     if(!disp)
 533         return S_OK;
 534     IDispatch_AddRef(disp);
 535
 536     if(doc->nscontainer && (event_info[eid].flags & EVENT_DEFAULTLISTENER)) {
 537         if(!doc->nscontainer->event_vector) {
 538             doc->nscontainer->event_vector = heap_alloc_zero(EVENTID_LAST*sizeof(BOOL));
 539             if(!doc->nscontainer->event_vector)
 540                 return E_OUTOFMEMORY;
 541         }
 542
 543         if(!doc->nscontainer->event_vector[eid]) {
 544             doc->nscontainer->event_vector[eid] = TRUE;
 545             add_nsevent_listener(doc->nscontainer, event_info[eid].name);
 546         }
 547     }
 548
 549     return S_OK;
 550 }
 551
 552 HRESULT set_event_handler(event_target_t **event_target, HTMLDocument *doc, eventid_t eid, VARIANT *var)
 553 {
 554     switch(V_VT(var)) {
 555     case VT_NULL:
 556         if(*event_target && (*event_target)->event_table[eid]) {
 557             IDispatch_Release((*event_target)->event_table[eid]);
 558             (*event_target)->event_table[eid] = NULL;
 559         }
 560         break;
 561
 562     case VT_DISPATCH:
 563         return set_event_handler_disp(event_target, doc, eid, V_DISPATCH(var));
 564
 565     default:
 566         FIXME("not supported vt=%d\n", V_VT(var));
 567         return E_NOTIMPL;
 568     }
 569
 570     return S_OK;
 571 }
 572
 573 HRESULT get_event_handler(event_target_t **event_target, eventid_t eid, VARIANT *var)
 574 {
 575     if(*event_target && (*event_target)->event_table[eid]) {
 576         V_VT(var) = VT_DISPATCH;
 577         V_DISPATCH(var) = (*event_target)->event_table[eid];
 578         IDispatch_AddRef(V_DISPATCH(var));
 579     }else {
 580         V_VT(var) = VT_NULL;
 581     }
 582
 583     return S_OK;
 584 }
 585
 586 void check_event_attr(HTMLDocument *doc, nsIDOMElement *nselem)
 587 {
 588     const PRUnichar *attr_value;
 589     nsAString attr_name_str, attr_value_str;
 590     IDispatch *disp;
 591     HTMLDOMNode *node;
 592     int i;
 593     nsresult nsres;
 594
 595     nsAString_Init(&attr_value_str, NULL);
 596     nsAString_Init(&attr_name_str, NULL);
 597
 598     for(i=0; i < EVENTID_LAST; i++) {
 599         nsAString_SetData(&attr_name_str, event_info[i].attr_name);
 600         nsres = nsIDOMElement_GetAttribute(nselem, &attr_name_str, &attr_value_str);
 601         if(NS_SUCCEEDED(nsres)) {
 602             nsAString_GetData(&attr_value_str, &attr_value);
 603             if(!*attr_value)
 604                 continue;
 605
 606             TRACE("%p.%s = %s\n", nselem, debugstr_w(event_info[i].attr_name), debugstr_w(attr_value));
 607
 608             disp = script_parse_event(doc, attr_value);
 609             if(disp) {
 610                 node = get_node(doc, (nsIDOMNode*)nselem, TRUE);
 611                 set_event_handler_disp(&node->event_target, node->doc, i, disp);
 612                 IDispatch_Release(disp);
 613             }
 614         }
 615     }
 616
 617     nsAString_Finish(&attr_value_str);
 618     nsAString_Finish(&attr_name_str);
 619 }
 620
 621 void release_event_target(event_target_t *event_target)
 622 {
 623     int i;
 624
 625     for(i=0; i < EVENTID_LAST; i++) {
 626         if(event_target->event_table[i])
 627             IDispatch_Release(event_target->event_table[i]);
 628     }
 629
 630     heap_free(event_target);
 631 }