dlls/mshtml/htmlevent.c

   1 /*
   2  * Copyright 2008-2009 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 #include "mshtmdid.h"
  28
  29 #include "mshtml_private.h"
  30 #include "htmlevent.h"
  31
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  35
  36 typedef struct {
  37     IDispatch *handler_prop;
  38     DWORD handler_cnt;
  39     IDispatch *handlers[0];
  40 } handler_vector_t;
  41
  42 struct event_target_t {
  43     DWORD node_handlers_mask;
  44     handler_vector_t *event_table[EVENTID_LAST];
  45 };
  46
  47 static const WCHAR beforeunloadW[] = {'b','e','f','o','r','e','u','n','l','o','a','d',0};
  48 static const WCHAR onbeforeunloadW[] = {'o','n','b','e','f','o','r','e','u','n','l','o','a','d',0};
  49
  50 static const WCHAR blurW[] = {'b','l','u','r',0};
  51 static const WCHAR onblurW[] = {'o','n','b','l','u','r',0};
  52
  53 static const WCHAR changeW[] = {'c','h','a','n','g','e',0};
  54 static const WCHAR onchangeW[] = {'o','n','c','h','a','n','g','e',0};
  55
  56 static const WCHAR clickW[] = {'c','l','i','c','k',0};
  57 static const WCHAR onclickW[] = {'o','n','c','l','i','c','k',0};
  58
  59 static const WCHAR contextmenuW[] = {'c','o','n','t','e','x','t','m','e','n','u',0};
  60 static const WCHAR oncontextmenuW[] = {'o','n','c','o','n','t','e','x','t','m','e','n','u',0};
  61
  62 static const WCHAR dblclickW[] = {'d','b','l','c','l','i','c','k',0};
  63 static const WCHAR ondblclickW[] = {'o','n','d','b','l','c','l','i','c','k',0};
  64
  65 static const WCHAR dragW[] = {'d','r','a','g',0};
  66 static const WCHAR ondragW[] = {'o','n','d','r','a','g',0};
  67
  68 static const WCHAR dragstartW[] = {'d','r','a','g','s','t','a','r','t',0};
  69 static const WCHAR ondragstartW[] = {'o','n','d','r','a','g','s','t','a','r','t',0};
  70
  71 static const WCHAR focusW[] = {'f','o','c','u','s',0};
  72 static const WCHAR onfocusW[] = {'o','n','f','o','c','u','s',0};
  73
  74 static const WCHAR keydownW[] = {'k','e','y','d','o','w','n',0};
  75 static const WCHAR onkeydownW[] = {'o','n','k','e','y','d','o','w','n',0};
  76
  77 static const WCHAR keyupW[] = {'k','e','y','u','p',0};
  78 static const WCHAR onkeyupW[] = {'o','n','k','e','y','u','p',0};
  79
  80 static const WCHAR loadW[] = {'l','o','a','d',0};
  81 static const WCHAR onloadW[] = {'o','n','l','o','a','d',0};
  82
  83 static const WCHAR mousedownW[] = {'m','o','u','s','e','d','o','w','n',0};
  84 static const WCHAR onmousedownW[] = {'o','n','m','o','u','s','e','d','o','w','n',0};
  85
  86 static const WCHAR mousemoveW[] = {'m','o','u','s','e','m','o','v','e',0};
  87 static const WCHAR onmousemoveW[] = {'o','n','m','o','u','s','e','m','o','v','e',0};
  88
  89 static const WCHAR mouseoutW[] = {'m','o','u','s','e','o','u','t',0};
  90 static const WCHAR onmouseoutW[] = {'o','n','m','o','u','s','e','o','u','t',0};
  91
  92 static const WCHAR mouseoverW[] = {'m','o','u','s','e','o','v','e','r',0};
  93 static const WCHAR onmouseoverW[] = {'o','n','m','o','u','s','e','o','v','e','r',0};
  94
  95 static const WCHAR mouseupW[] = {'m','o','u','s','e','u','p',0};
  96 static const WCHAR onmouseupW[] = {'o','n','m','o','u','s','e','u','p',0};
  97
  98 static const WCHAR pasteW[] = {'p','a','s','t','e',0};
  99 static const WCHAR onpasteW[] = {'o','n','p','a','s','t','e',0};
 100
 101 static const WCHAR readystatechangeW[] = {'r','e','a','d','y','s','t','a','t','e','c','h','a','n','g','e',0};
 102 static const WCHAR onreadystatechangeW[] = {'o','n','r','e','a','d','y','s','t','a','t','e','c','h','a','n','g','e',0};
 103
 104 static const WCHAR resizeW[] = {'r','e','s','i','z','e',0};
 105 static const WCHAR onresizeW[] = {'o','n','r','e','s','i','z','e',0};
 106
 107 static const WCHAR selectstartW[] = {'s','e','l','e','c','t','s','t','a','r','t',0};
 108 static const WCHAR onselectstartW[] = {'o','n','s','e','l','e','c','t','s','t','a','r','t',0};
 109
 110 static const WCHAR submitW[] = {'s','u','b','m','i','t',0};
 111 static const WCHAR onsubmitW[] = {'o','n','s','u','b','m','i','t',0};
 112
 113 static const WCHAR HTMLEventsW[] = {'H','T','M','L','E','v','e','n','t','s',0};
 114 static const WCHAR KeyboardEventW[] = {'K','e','y','b','o','a','r','d','E','v','e','n','t',0};
 115 static const WCHAR MouseEventW[] = {'M','o','u','s','e','E','v','e','n','t',0};
 116
 117 enum {
 118     EVENTT_NONE,
 119     EVENTT_HTML,
 120     EVENTT_KEY,
 121     EVENTT_MOUSE
 122 };
 123
 124 static const WCHAR *event_types[] = {
 125     NULL,
 126     HTMLEventsW,
 127     KeyboardEventW,
 128     MouseEventW
 129 };
 130
 131 typedef struct {
 132     LPCWSTR name;
 133     LPCWSTR attr_name;
 134     DWORD type;
 135     DISPID dispid;
 136     DWORD flags;
 137 } event_info_t;
 138
 139 #define EVENT_DEFAULTLISTENER    0x0001
 140 #define EVENT_BUBBLE             0x0002
 141 #define EVENT_FORWARDBODY        0x0004
 142 #define EVENT_NODEHANDLER        0x0008
 143 #define EVENT_CANCELABLE         0x0010
 144
 145 static const event_info_t event_info[] = {
 146     {beforeunloadW,      onbeforeunloadW,      EVENTT_NONE,   DISPID_EVMETH_ONBEFOREUNLOAD,
 147         EVENT_DEFAULTLISTENER|EVENT_FORWARDBODY},
 148     {blurW,              onblurW,              EVENTT_HTML,   DISPID_EVMETH_ONBLUR,
 149         EVENT_DEFAULTLISTENER},
 150     {changeW,            onchangeW,            EVENTT_HTML,   DISPID_EVMETH_ONCHANGE,
 151         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 152     {clickW,             onclickW,             EVENTT_MOUSE,  DISPID_EVMETH_ONCLICK,
 153         EVENT_DEFAULTLISTENER|EVENT_BUBBLE|EVENT_CANCELABLE},
 154     {contextmenuW,       oncontextmenuW,       EVENTT_MOUSE,  DISPID_EVMETH_ONCONTEXTMENU,
 155         EVENT_BUBBLE|EVENT_CANCELABLE},
 156     {dblclickW,          ondblclickW,          EVENTT_MOUSE,  DISPID_EVMETH_ONDBLCLICK,
 157         EVENT_DEFAULTLISTENER|EVENT_BUBBLE|EVENT_CANCELABLE},
 158     {dragW,              ondragW,              EVENTT_MOUSE,  DISPID_EVMETH_ONDRAG,
 159         EVENT_CANCELABLE},
 160     {dragstartW,         ondragstartW,         EVENTT_MOUSE,  DISPID_EVMETH_ONDRAGSTART,
 161         EVENT_CANCELABLE},
 162     {focusW,             onfocusW,             EVENTT_HTML,   DISPID_EVMETH_ONFOCUS,
 163         EVENT_DEFAULTLISTENER},
 164     {keydownW,           onkeydownW,           EVENTT_KEY,    DISPID_EVMETH_ONKEYDOWN,
 165         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 166     {keyupW,             onkeyupW,             EVENTT_KEY,    DISPID_EVMETH_ONKEYUP,
 167         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 168     {loadW,              onloadW,              EVENTT_HTML,   DISPID_EVMETH_ONLOAD,
 169         EVENT_NODEHANDLER},
 170     {mousedownW,         onmousedownW,         EVENTT_MOUSE,  DISPID_EVMETH_ONMOUSEDOWN,
 171         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 172     {mousemoveW,         onmousemoveW,         EVENTT_MOUSE,  DISPID_EVMETH_ONMOUSEMOVE,
 173         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 174     {mouseoutW,          onmouseoutW,          EVENTT_MOUSE,  DISPID_EVMETH_ONMOUSEOUT,
 175         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 176     {mouseoverW,         onmouseoverW,         EVENTT_MOUSE,  DISPID_EVMETH_ONMOUSEOVER,
 177         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 178     {mouseupW,           onmouseupW,           EVENTT_MOUSE,  DISPID_EVMETH_ONMOUSEUP,
 179         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 180     {pasteW,             onpasteW,             EVENTT_NONE,   DISPID_EVMETH_ONPASTE,
 181         EVENT_CANCELABLE},
 182     {readystatechangeW,  onreadystatechangeW,  EVENTT_NONE,   DISPID_EVMETH_ONREADYSTATECHANGE,
 183         0},
 184     {resizeW,            onresizeW,            EVENTT_NONE,   DISPID_EVMETH_ONRESIZE,
 185         EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
 186     {selectstartW,       onselectstartW,       EVENTT_MOUSE,  DISPID_EVMETH_ONSELECTSTART,
 187         EVENT_CANCELABLE},
 188     {submitW,            onsubmitW,            EVENTT_HTML,   DISPID_EVMETH_ONSUBMIT,
 189         EVENT_DEFAULTLISTENER|EVENT_BUBBLE|EVENT_CANCELABLE}
 190 };
 191
 192 static const eventid_t node_handled_list[] = { EVENTID_LOAD };
 193
 194 eventid_t str_to_eid(LPCWSTR str)
 195 {
 196     int i;
 197
 198     for(i=0; i < sizeof(event_info)/sizeof(event_info[0]); i++) {
 199         if(!strcmpW(event_info[i].name, str))
 200             return i;
 201     }
 202
 203     ERR("unknown type %s\n", debugstr_w(str));
 204     return EVENTID_LAST;
 205 }
 206
 207 static eventid_t attr_to_eid(LPCWSTR str)
 208 {
 209     int i;
 210
 211     for(i=0; i < sizeof(event_info)/sizeof(event_info[0]); i++) {
 212         if(!strcmpW(event_info[i].attr_name, str))
 213             return i;
 214     }
 215
 216     return EVENTID_LAST;
 217 }
 218
 219 static DWORD get_node_handler_mask(eventid_t eid)
 220 {
 221     DWORD i;
 222
 223     for(i=0; i<sizeof(node_handled_list)/sizeof(*node_handled_list); i++) {
 224         if(node_handled_list[i] == eid)
 225             return 1 << i;
 226     }
 227
 228     ERR("Invalid eid %d\n", eid);
 229     return ~0;
 230 }
 231
 232 typedef struct {
 233     DispatchEx dispex;
 234     IHTMLEventObj IHTMLEventObj_iface;
 235
 236     LONG ref;
 237
 238     HTMLDOMNode *target;
 239     const event_info_t *type;
 240     nsIDOMEvent *nsevent;
 241     BOOL prevent_default;
 242 } HTMLEventObj;
 243
 244 static inline HTMLEventObj *impl_from_IHTMLEventObj(IHTMLEventObj *iface)
 245 {
 246     return CONTAINING_RECORD(iface, HTMLEventObj, IHTMLEventObj_iface);
 247 }
 248
 249 static HRESULT WINAPI HTMLEventObj_QueryInterface(IHTMLEventObj *iface, REFIID riid, void **ppv)
 250 {
 251     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 252
 253     *ppv = NULL;
 254
 255     if(IsEqualGUID(&IID_IUnknown, riid)) {
 256         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 257         *ppv = &This->IHTMLEventObj_iface;
 258     }else if(IsEqualGUID(&IID_IHTMLEventObj, riid)) {
 259         TRACE("(%p)->(IID_IHTMLEventObj %p)\n", This, ppv);
 260         *ppv = &This->IHTMLEventObj_iface;
 261     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
 262         return *ppv ? S_OK : E_NOINTERFACE;
 263     }
 264
 265     if(*ppv) {
 266         IUnknown_AddRef((IUnknown*)*ppv);
 267         return S_OK;
 268     }
 269
 270     WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 271     return E_NOINTERFACE;
 272 }
 273
 274 static ULONG WINAPI HTMLEventObj_AddRef(IHTMLEventObj *iface)
 275 {
 276     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 277     LONG ref = InterlockedIncrement(&This->ref);
 278
 279     TRACE("(%p) ref=%d\n", This, ref);
 280
 281     return ref;
 282 }
 283
 284 static ULONG WINAPI HTMLEventObj_Release(IHTMLEventObj *iface)
 285 {
 286     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 287     LONG ref = InterlockedDecrement(&This->ref);
 288
 289     TRACE("(%p) ref=%d\n", This, ref);
 290
 291     if(!ref) {
 292         if(This->target)
 293             IHTMLDOMNode_Release(&This->target->IHTMLDOMNode_iface);
 294         if(This->nsevent)
 295             nsIDOMEvent_Release(This->nsevent);
 296         release_dispex(&This->dispex);
 297         heap_free(This);
 298     }
 299
 300     return ref;
 301 }
 302
 303 static HRESULT WINAPI HTMLEventObj_GetTypeInfoCount(IHTMLEventObj *iface, UINT *pctinfo)
 304 {
 305     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 306     return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
 307 }
 308
 309 static HRESULT WINAPI HTMLEventObj_GetTypeInfo(IHTMLEventObj *iface, UINT iTInfo,
 310                                               LCID lcid, ITypeInfo **ppTInfo)
 311 {
 312     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 313     return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface, iTInfo, lcid, ppTInfo);
 314 }
 315
 316 static HRESULT WINAPI HTMLEventObj_GetIDsOfNames(IHTMLEventObj *iface, REFIID riid,
 317                                                 LPOLESTR *rgszNames, UINT cNames,
 318                                                 LCID lcid, DISPID *rgDispId)
 319 {
 320     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 321     return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface, riid, rgszNames, cNames,
 322             lcid, rgDispId);
 323 }
 324
 325 static HRESULT WINAPI HTMLEventObj_Invoke(IHTMLEventObj *iface, DISPID dispIdMember,
 326                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 327                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 328 {
 329     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 330     return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface, dispIdMember, riid, lcid,
 331             wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 332 }
 333
 334 static HRESULT WINAPI HTMLEventObj_get_srcElement(IHTMLEventObj *iface, IHTMLElement **p)
 335 {
 336     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 337
 338     TRACE("(%p)->(%p)\n", This, p);
 339
 340     return IHTMLDOMNode_QueryInterface(&This->target->IHTMLDOMNode_iface, &IID_IHTMLElement,
 341             (void**)p);
 342 }
 343
 344 static HRESULT WINAPI HTMLEventObj_get_altKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
 345 {
 346     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 347     PRBool ret = FALSE;
 348
 349     TRACE("(%p)->(%p)\n", This, p);
 350
 351     if(This->nsevent) {
 352         nsIDOMKeyEvent *key_event;
 353         nsresult nsres;
 354
 355         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
 356         if(NS_SUCCEEDED(nsres)) {
 357             nsIDOMKeyEvent_GetAltKey(key_event, &ret);
 358             nsIDOMKeyEvent_Release(key_event);
 359         }else {
 360             nsIDOMMouseEvent *mouse_event;
 361
 362             nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 363             if(NS_SUCCEEDED(nsres)) {
 364                 nsIDOMMouseEvent_GetAltKey(mouse_event, &ret);
 365                 nsIDOMMouseEvent_Release(mouse_event);
 366             }
 367         }
 368     }
 369
 370     *p = ret ? VARIANT_TRUE : VARIANT_FALSE;
 371     return S_OK;
 372 }
 373
 374 static HRESULT WINAPI HTMLEventObj_get_ctrlKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
 375 {
 376     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 377     PRBool ret = FALSE;
 378
 379     TRACE("(%p)->(%p)\n", This, p);
 380
 381     if(This->nsevent) {
 382         nsIDOMKeyEvent *key_event;
 383         nsresult nsres;
 384
 385         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
 386         if(NS_SUCCEEDED(nsres)) {
 387             nsIDOMKeyEvent_GetCtrlKey(key_event, &ret);
 388             nsIDOMKeyEvent_Release(key_event);
 389         }else {
 390             nsIDOMMouseEvent *mouse_event;
 391
 392             nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 393             if(NS_SUCCEEDED(nsres)) {
 394                 nsIDOMMouseEvent_GetCtrlKey(mouse_event, &ret);
 395                 nsIDOMMouseEvent_Release(mouse_event);
 396             }
 397         }
 398     }
 399
 400     *p = ret ? VARIANT_TRUE : VARIANT_FALSE;
 401     return S_OK;
 402 }
 403
 404 static HRESULT WINAPI HTMLEventObj_get_shiftKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
 405 {
 406     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 407     PRBool ret = FALSE;
 408
 409     TRACE("(%p)->(%p)\n", This, p);
 410
 411     if(This->nsevent) {
 412         nsIDOMKeyEvent *key_event;
 413         nsresult nsres;
 414
 415         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
 416         if(NS_SUCCEEDED(nsres)) {
 417             nsIDOMKeyEvent_GetShiftKey(key_event, &ret);
 418             nsIDOMKeyEvent_Release(key_event);
 419         }else {
 420             nsIDOMMouseEvent *mouse_event;
 421
 422             nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 423             if(NS_SUCCEEDED(nsres)) {
 424                 nsIDOMMouseEvent_GetShiftKey(mouse_event, &ret);
 425                 nsIDOMMouseEvent_Release(mouse_event);
 426             }
 427         }
 428     }
 429
 430     *p = ret ? VARIANT_TRUE : VARIANT_FALSE;
 431     return S_OK;
 432 }
 433
 434 static HRESULT WINAPI HTMLEventObj_put_returnValue(IHTMLEventObj *iface, VARIANT v)
 435 {
 436     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 437     FIXME("(%p)->()\n", This);
 438     return E_NOTIMPL;
 439 }
 440
 441 static HRESULT WINAPI HTMLEventObj_get_returnValue(IHTMLEventObj *iface, VARIANT *p)
 442 {
 443     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 444
 445     FIXME("(%p)->(%p)\n", This, p);
 446
 447     V_VT(p) = VT_EMPTY;
 448     return S_OK;
 449 }
 450
 451 static HRESULT WINAPI HTMLEventObj_put_cancelBubble(IHTMLEventObj *iface, VARIANT_BOOL v)
 452 {
 453     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 454     FIXME("(%p)->(%x)\n", This, v);
 455     return E_NOTIMPL;
 456 }
 457
 458 static HRESULT WINAPI HTMLEventObj_get_cancelBubble(IHTMLEventObj *iface, VARIANT_BOOL *p)
 459 {
 460     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 461
 462     FIXME("(%p)->(%p)\n", This, p);
 463
 464     *p = VARIANT_FALSE;
 465     return S_OK;
 466 }
 467
 468 static HRESULT WINAPI HTMLEventObj_get_fromElement(IHTMLEventObj *iface, IHTMLElement **p)
 469 {
 470     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 471
 472     FIXME("(%p)->(%p)\n", This, p);
 473
 474     *p = NULL;
 475     return S_OK;
 476 }
 477
 478 static HRESULT WINAPI HTMLEventObj_get_toElement(IHTMLEventObj *iface, IHTMLElement **p)
 479 {
 480     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 481
 482     FIXME("(%p)->(%p)\n", This, p);
 483
 484     *p = NULL;
 485     return S_OK;
 486 }
 487
 488 static HRESULT WINAPI HTMLEventObj_put_keyCode(IHTMLEventObj *iface, LONG v)
 489 {
 490     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 491     FIXME("(%p)->(%d)\n", This, v);
 492     return E_NOTIMPL;
 493 }
 494
 495 static HRESULT WINAPI HTMLEventObj_get_keyCode(IHTMLEventObj *iface, LONG *p)
 496 {
 497     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 498     PRUint32 key_code = 0;
 499
 500     TRACE("(%p)->(%p)\n", This, p);
 501
 502     if(This->nsevent) {
 503         nsIDOMKeyEvent *key_event;
 504         nsresult nsres;
 505
 506         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
 507         if(NS_SUCCEEDED(nsres)) {
 508             nsIDOMKeyEvent_GetKeyCode(key_event, &key_code);
 509             nsIDOMKeyEvent_Release(key_event);
 510         }
 511     }
 512
 513     *p = key_code;
 514     return S_OK;
 515 }
 516
 517 static HRESULT WINAPI HTMLEventObj_get_button(IHTMLEventObj *iface, LONG *p)
 518 {
 519     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 520     PRUint16 button = 0;
 521
 522     TRACE("(%p)->(%p)\n", This, p);
 523
 524     if(This->nsevent) {
 525         nsIDOMMouseEvent *mouse_event;
 526         nsresult nsres;
 527
 528         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 529         if(NS_SUCCEEDED(nsres)) {
 530             nsIDOMMouseEvent_GetButton(mouse_event, &button);
 531             nsIDOMMouseEvent_Release(mouse_event);
 532         }
 533     }
 534
 535     *p = button;
 536     return S_OK;
 537 }
 538
 539 static HRESULT WINAPI HTMLEventObj_get_type(IHTMLEventObj *iface, BSTR *p)
 540 {
 541     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 542
 543     TRACE("(%p)->(%p)\n", This, p);
 544
 545     *p = SysAllocString(This->type->name);
 546     return *p ? S_OK : E_OUTOFMEMORY;
 547 }
 548
 549 static HRESULT WINAPI HTMLEventObj_get_qualifier(IHTMLEventObj *iface, BSTR *p)
 550 {
 551     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 552
 553     FIXME("(%p)->(%p)\n", This, p);
 554
 555     *p = NULL;
 556     return S_OK;
 557 }
 558
 559 static HRESULT WINAPI HTMLEventObj_get_reason(IHTMLEventObj *iface, LONG *p)
 560 {
 561     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 562
 563     FIXME("(%p)->(%p)\n", This, p);
 564
 565     *p = 0;
 566     return S_OK;
 567 }
 568
 569 static HRESULT WINAPI HTMLEventObj_get_x(IHTMLEventObj *iface, LONG *p)
 570 {
 571     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 572
 573     FIXME("(%p)->(%p)\n", This, p);
 574
 575     *p = -1;
 576     return S_OK;
 577 }
 578
 579 static HRESULT WINAPI HTMLEventObj_get_y(IHTMLEventObj *iface, LONG *p)
 580 {
 581     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 582
 583     FIXME("(%p)->(%p)\n", This, p);
 584
 585     *p = -1;
 586     return S_OK;
 587 }
 588
 589 static HRESULT WINAPI HTMLEventObj_get_clientX(IHTMLEventObj *iface, LONG *p)
 590 {
 591     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 592     PRInt32 x = 0;
 593
 594     TRACE("(%p)->(%p)\n", This, p);
 595
 596     if(This->nsevent) {
 597         nsIDOMMouseEvent *mouse_event;
 598         nsresult nsres;
 599
 600         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 601         if(NS_SUCCEEDED(nsres)) {
 602             nsIDOMMouseEvent_GetClientX(mouse_event, &x);
 603             nsIDOMMouseEvent_Release(mouse_event);
 604         }
 605     }
 606
 607     *p = x;
 608     return S_OK;
 609 }
 610
 611 static HRESULT WINAPI HTMLEventObj_get_clientY(IHTMLEventObj *iface, LONG *p)
 612 {
 613     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 614     PRInt32 y = 0;
 615
 616     TRACE("(%p)->(%p)\n", This, p);
 617
 618     if(This->nsevent) {
 619         nsIDOMMouseEvent *mouse_event;
 620         nsresult nsres;
 621
 622         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 623         if(NS_SUCCEEDED(nsres)) {
 624             nsIDOMMouseEvent_GetClientY(mouse_event, &y);
 625             nsIDOMMouseEvent_Release(mouse_event);
 626         }
 627     }
 628
 629     *p = y;
 630     return S_OK;
 631 }
 632
 633 static HRESULT WINAPI HTMLEventObj_get_offsetX(IHTMLEventObj *iface, LONG *p)
 634 {
 635     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 636
 637     FIXME("(%p)->(%p)\n", This, p);
 638
 639     *p = 0;
 640     return S_OK;
 641 }
 642
 643 static HRESULT WINAPI HTMLEventObj_get_offsetY(IHTMLEventObj *iface, LONG *p)
 644 {
 645     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 646
 647     FIXME("(%p)->(%p)\n", This, p);
 648
 649     *p = 0;
 650     return S_OK;
 651 }
 652
 653 static HRESULT WINAPI HTMLEventObj_get_screenX(IHTMLEventObj *iface, LONG *p)
 654 {
 655     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 656     PRInt32 x = 0;
 657
 658     TRACE("(%p)->(%p)\n", This, p);
 659
 660     if(This->nsevent) {
 661         nsIDOMMouseEvent *mouse_event;
 662         nsresult nsres;
 663
 664         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 665         if(NS_SUCCEEDED(nsres)) {
 666             nsIDOMMouseEvent_GetScreenX(mouse_event, &x);
 667             nsIDOMMouseEvent_Release(mouse_event);
 668         }
 669     }
 670
 671     *p = x;
 672     return S_OK;
 673 }
 674
 675 static HRESULT WINAPI HTMLEventObj_get_screenY(IHTMLEventObj *iface, LONG *p)
 676 {
 677     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 678     PRInt32 y = 0;
 679
 680     TRACE("(%p)->(%p)\n", This, p);
 681
 682     if(This->nsevent) {
 683         nsIDOMMouseEvent *mouse_event;
 684         nsresult nsres;
 685
 686         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
 687         if(NS_SUCCEEDED(nsres)) {
 688             nsIDOMMouseEvent_GetScreenY(mouse_event, &y);
 689             nsIDOMMouseEvent_Release(mouse_event);
 690         }
 691     }
 692
 693     *p = y;
 694     return S_OK;
 695 }
 696
 697 static HRESULT WINAPI HTMLEventObj_get_srcFilter(IHTMLEventObj *iface, IDispatch **p)
 698 {
 699     HTMLEventObj *This = impl_from_IHTMLEventObj(iface);
 700
 701     FIXME("(%p)->(%p)\n", This, p);
 702
 703     *p = NULL;
 704     return S_OK;
 705 }
 706
 707 static const IHTMLEventObjVtbl HTMLEventObjVtbl = {
 708     HTMLEventObj_QueryInterface,
 709     HTMLEventObj_AddRef,
 710     HTMLEventObj_Release,
 711     HTMLEventObj_GetTypeInfoCount,
 712     HTMLEventObj_GetTypeInfo,
 713     HTMLEventObj_GetIDsOfNames,
 714     HTMLEventObj_Invoke,
 715     HTMLEventObj_get_srcElement,
 716     HTMLEventObj_get_altKey,
 717     HTMLEventObj_get_ctrlKey,
 718     HTMLEventObj_get_shiftKey,
 719     HTMLEventObj_put_returnValue,
 720     HTMLEventObj_get_returnValue,
 721     HTMLEventObj_put_cancelBubble,
 722     HTMLEventObj_get_cancelBubble,
 723     HTMLEventObj_get_fromElement,
 724     HTMLEventObj_get_toElement,
 725     HTMLEventObj_put_keyCode,
 726     HTMLEventObj_get_keyCode,
 727     HTMLEventObj_get_button,
 728     HTMLEventObj_get_type,
 729     HTMLEventObj_get_qualifier,
 730     HTMLEventObj_get_reason,
 731     HTMLEventObj_get_x,
 732     HTMLEventObj_get_y,
 733     HTMLEventObj_get_clientX,
 734     HTMLEventObj_get_clientY,
 735     HTMLEventObj_get_offsetX,
 736     HTMLEventObj_get_offsetY,
 737     HTMLEventObj_get_screenX,
 738     HTMLEventObj_get_screenY,
 739     HTMLEventObj_get_srcFilter
 740 };
 741
 742 static const tid_t HTMLEventObj_iface_tids[] = {
 743     IHTMLEventObj_tid,
 744     0
 745 };
 746
 747 static dispex_static_data_t HTMLEventObj_dispex = {
 748     NULL,
 749     DispCEventObj_tid,
 750     NULL,
 751     HTMLEventObj_iface_tids
 752 };
 753
 754 static HTMLEventObj *create_event(HTMLDOMNode *target, eventid_t eid, nsIDOMEvent *nsevent)
 755 {
 756     HTMLEventObj *ret;
 757
 758     ret = heap_alloc_zero(sizeof(*ret));
 759     if(!ret)
 760         return NULL;
 761
 762     ret->IHTMLEventObj_iface.lpVtbl = &HTMLEventObjVtbl;
 763     ret->ref = 1;
 764     ret->type = event_info+eid;
 765
 766     ret->nsevent = nsevent;
 767     if(nsevent) {
 768         nsIDOMEvent_AddRef(nsevent);
 769     }else if(event_types[event_info[eid].type]) {
 770         nsIDOMDocumentEvent *doc_event;
 771         nsresult nsres;
 772
 773         nsres = nsIDOMHTMLDocument_QueryInterface(target->doc->nsdoc, &IID_nsIDOMDocumentEvent,
 774                  (void**)&doc_event);
 775         if(NS_SUCCEEDED(nsres)) {
 776             nsAString type_str;
 777
 778             nsAString_InitDepend(&type_str, event_types[event_info[eid].type]);
 779             nsres = nsIDOMDocumentEvent_CreateEvent(doc_event, &type_str, &ret->nsevent);
 780             nsAString_Finish(&type_str);
 781             nsIDOMDocumentEvent_Release(doc_event);
 782         }
 783         if(NS_FAILED(nsres)) {
 784             ERR("Could not create event: %08x\n", nsres);
 785             IHTMLEventObj_Release(&ret->IHTMLEventObj_iface);
 786             return NULL;
 787         }
 788     }
 789
 790     ret->target = target;
 791     IHTMLDOMNode_AddRef(&target->IHTMLDOMNode_iface);
 792
 793     init_dispex(&ret->dispex, (IUnknown*)&ret->IHTMLEventObj_iface, &HTMLEventObj_dispex);
 794
 795     return ret;
 796 }
 797
 798 static HRESULT call_disp_func(IDispatch *disp, DISPPARAMS *dp, VARIANT *retv)
 799 {
 800     IDispatchEx *dispex;
 801     EXCEPINFO ei;
 802     HRESULT hres;
 803
 804     memset(&ei, 0, sizeof(ei));
 805
 806     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 807     if(SUCCEEDED(hres)) {
 808         hres = IDispatchEx_InvokeEx(dispex, 0, GetUserDefaultLCID(), DISPATCH_METHOD, dp, retv, &ei, NULL);
 809         IDispatchEx_Release(dispex);
 810     }else {
 811         TRACE("Could not get IDispatchEx interface: %08x\n", hres);
 812         hres = IDispatch_Invoke(disp, 0, &IID_NULL, GetUserDefaultLCID(), DISPATCH_METHOD,
 813                 dp, retv, &ei, NULL);
 814     }
 815
 816     return hres;
 817 }
 818
 819 static HRESULT call_cp_func(IDispatch *disp, DISPID dispid, VARIANT *retv)
 820 {
 821     DISPPARAMS dp = {NULL,NULL,0,0};
 822     ULONG argerr;
 823     EXCEPINFO ei;
 824
 825     memset(&ei, 0, sizeof(ei));
 826     return IDispatch_Invoke(disp, dispid, &IID_NULL, 0, DISPATCH_METHOD, &dp, retv, &ei, &argerr);
 827 }
 828
 829 static BOOL is_cp_event(cp_static_data_t *data, DISPID dispid)
 830 {
 831     int min, max, i;
 832     HRESULT hres;
 833
 834     if(!data)
 835         return FALSE;
 836
 837     if(!data->ids) {
 838         hres = get_dispids(data->tid, &data->id_cnt, &data->ids);
 839         if(FAILED(hres))
 840             return FALSE;
 841     }
 842
 843     min = 0;
 844     max = data->id_cnt-1;
 845     while(min <= max) {
 846         i = (min+max)/2;
 847         if(data->ids[i] == dispid)
 848             return TRUE;
 849
 850         if(data->ids[i] < dispid)
 851             min = i+1;
 852         else
 853             max = i-1;
 854     }
 855
 856     return FALSE;
 857 }
 858
 859 static void call_event_handlers(HTMLDocumentNode *doc, HTMLEventObj *event_obj, event_target_t *event_target,
 860         ConnectionPointContainer *cp_container, eventid_t eid, IDispatch *this_obj)
 861 {
 862     const BOOL cancelable = event_info[eid].flags & EVENT_CANCELABLE;
 863     handler_vector_t *handler_vector = NULL;
 864     VARIANT v;
 865     int i;
 866     HRESULT hres;
 867
 868     if(event_target)
 869         handler_vector = event_target->event_table[eid];
 870
 871     if(handler_vector && handler_vector->handler_prop) {
 872         DISPID named_arg = DISPID_THIS;
 873         VARIANTARG arg;
 874         DISPPARAMS dp = {&arg, &named_arg, 1, 1};
 875
 876         V_VT(&arg) = VT_DISPATCH;
 877         V_DISPATCH(&arg) = this_obj;
 878         V_VT(&v) = VT_EMPTY;
 879
 880         TRACE("%s >>>\n", debugstr_w(event_info[eid].name));
 881         hres = call_disp_func(handler_vector->handler_prop, &dp, &v);
 882         if(hres == S_OK) {
 883             TRACE("%s <<< %s\n", debugstr_w(event_info[eid].name), debugstr_variant(&v));
 884
 885             if(cancelable) {
 886                 if(V_VT(&v) == VT_BOOL) {
 887                     if(!V_BOOL(&v))
 888                         event_obj->prevent_default = TRUE;
 889                 }else if(V_VT(&v) != VT_EMPTY) {
 890                     FIXME("unhandled result %s\n", debugstr_variant(&v));
 891                 }
 892             }
 893             VariantClear(&v);
 894         }else {
 895             WARN("%s <<< %08x\n", debugstr_w(event_info[eid].name), hres);
 896         }
 897     }
 898
 899     if(handler_vector && handler_vector->handler_cnt) {
 900         VARIANTARG arg;
 901         DISPPARAMS dp = {&arg, NULL, 1, 0};
 902
 903         V_VT(&arg) = VT_DISPATCH;
 904         V_DISPATCH(&arg) = (IDispatch*)event_obj;
 905
 906         i = handler_vector->handler_cnt;
 907         while(i--) {
 908             if(handler_vector->handlers[i]) {
 909                 V_VT(&v) = VT_EMPTY;
 910
 911                 TRACE("%s [%d] >>>\n", debugstr_w(event_info[eid].name), i);
 912                 hres = call_disp_func(handler_vector->handlers[i], &dp, &v);
 913                 if(hres == S_OK) {
 914                     TRACE("%s [%d] <<<\n", debugstr_w(event_info[eid].name), i);
 915
 916                     if(cancelable) {
 917                         if(V_VT(&v) == VT_BOOL) {
 918                             if(!V_BOOL(&v))
 919                                 event_obj->prevent_default = TRUE;
 920                         }else if(V_VT(&v) != VT_EMPTY) {
 921                             FIXME("unhandled result %s\n", debugstr_variant(&v));
 922                         }
 923                     }
 924                     VariantClear(&v);
 925                 }else {
 926                     WARN("%s [%d] <<< %08x\n", debugstr_w(event_info[eid].name), i, hres);
 927                 }
 928             }
 929         }
 930     }
 931
 932     if(cp_container) {
 933         ConnectionPoint *cp;
 934
 935         if(cp_container->forward_container)
 936             cp_container = cp_container->forward_container;
 937
 938         for(cp = cp_container->cp_list; cp; cp = cp->next) {
 939             if(cp->sinks_size && is_cp_event(cp->data, event_info[eid].dispid)) {
 940                 for(i=0; i < cp->sinks_size; i++) {
 941                     if(!cp->sinks[i].disp)
 942                         continue;
 943
 944                     V_VT(&v) = VT_EMPTY;
 945
 946                     TRACE("cp %s [%d] >>>\n", debugstr_w(event_info[eid].name), i);
 947                     hres = call_cp_func(cp->sinks[i].disp, event_info[eid].dispid, &v);
 948                     if(hres == S_OK) {
 949                         TRACE("cp %s [%d] <<<\n", debugstr_w(event_info[eid].name), i);
 950
 951                         if(cancelable) {
 952                             if(V_VT(&v) == VT_BOOL) {
 953                                 if(!V_BOOL(&v))
 954                                     event_obj->prevent_default = TRUE;
 955                             }else if(V_VT(&v) != VT_EMPTY) {
 956                                 FIXME("unhandled result %s\n", debugstr_variant(&v));
 957                             }
 958                         }
 959                         VariantClear(&v);
 960                     }else {
 961                         WARN("cp %s [%d] <<< %08x\n", debugstr_w(event_info[eid].name), i, hres);
 962                     }
 963                 }
 964             }
 965         }
 966     }
 967 }
 968
 969 void fire_event(HTMLDocumentNode *doc, eventid_t eid, BOOL set_event, nsIDOMNode *target, nsIDOMEvent *nsevent)
 970 {
 971     HTMLEventObj *event_obj = NULL;
 972     IHTMLEventObj *prev_event;
 973     nsIDOMNode *parent, *nsnode;
 974     HTMLDOMNode *node;
 975     PRUint16 node_type;
 976     HRESULT hres;
 977
 978     TRACE("(%p) %s\n", doc, debugstr_w(event_info[eid].name));
 979
 980     prev_event = doc->basedoc.window->event;
 981     if(set_event) {
 982         hres = get_node(doc, target, TRUE, &node);
 983         if(FAILED(hres))
 984             return;
 985
 986         event_obj = create_event(node, eid, nsevent);
 987         doc->basedoc.window->event = &event_obj->IHTMLEventObj_iface;
 988     }else {
 989         doc->basedoc.window->event = NULL;
 990     }
 991
 992     nsIDOMNode_GetNodeType(target, &node_type);
 993     nsnode = target;
 994     nsIDOMNode_AddRef(nsnode);
 995
 996     switch(node_type) {
 997     case ELEMENT_NODE:
 998         do {
 999             hres = get_node(doc, nsnode, FALSE, &node);
1000             if(SUCCEEDED(hres) && node)
1001                 call_event_handlers(doc, event_obj, *get_node_event_target(node),
1002                         node->cp_container, eid, (IDispatch*)&node->IHTMLDOMNode_iface);
1003
1004             if(!(event_info[eid].flags & EVENT_BUBBLE))
1005                 break;
1006
1007             nsIDOMNode_GetParentNode(nsnode, &parent);
1008             nsIDOMNode_Release(nsnode);
1009             nsnode = parent;
1010             if(!nsnode)
1011                 break;
1012
1013             nsIDOMNode_GetNodeType(nsnode, &node_type);
1014         }while(node_type == ELEMENT_NODE);
1015
1016         if(!(event_info[eid].flags & EVENT_BUBBLE))
1017             break;
1018
1019     case DOCUMENT_NODE:
1020         if(event_info[eid].flags & EVENT_FORWARDBODY) {
1021             nsIDOMHTMLElement *nsbody;
1022             nsresult nsres;
1023
1024             nsres = nsIDOMHTMLDocument_GetBody(doc->nsdoc, &nsbody);
1025             if(NS_SUCCEEDED(nsres) && nsbody) {
1026                 hres = get_node(doc, (nsIDOMNode*)nsbody, FALSE, &node);
1027                 if(SUCCEEDED(hres) && node)
1028                     call_event_handlers(doc, event_obj, *get_node_event_target(node),
1029                             node->cp_container, eid, (IDispatch*)&node->IHTMLDOMNode_iface);
1030                 nsIDOMHTMLElement_Release(nsbody);
1031             }else {
1032                 ERR("Could not get body: %08x\n", nsres);
1033             }
1034         }
1035
1036         call_event_handlers(doc, event_obj, doc->node.event_target, &doc->basedoc.cp_container, eid,
1037                 (IDispatch*)&doc->basedoc.IHTMLDocument2_iface);
1038         break;
1039
1040     default:
1041         FIXME("unimplemented node type %d\n", node_type);
1042     }
1043
1044     if(nsnode)
1045         nsIDOMNode_Release(nsnode);
1046
1047     doc->basedoc.window->event = prev_event;
1048
1049     if(event_obj) {
1050         if(event_obj->prevent_default && nsevent) {
1051             TRACE("calling PreventDefault\n");
1052             nsIDOMEvent_PreventDefault(nsevent);
1053         }
1054         IHTMLEventObj_Release(&event_obj->IHTMLEventObj_iface);
1055     }
1056 }
1057
1058 HRESULT dispatch_event(HTMLDOMNode *node, const WCHAR *event_name, VARIANT *event_obj, VARIANT_BOOL *cancelled)
1059 {
1060     eventid_t eid;
1061
1062     eid = attr_to_eid(event_name);
1063     if(eid == EVENTID_LAST) {
1064         WARN("unknown event %s\n", debugstr_w(event_name));
1065         return E_INVALIDARG;
1066     }
1067
1068     if(event_obj && V_VT(event_obj) != VT_EMPTY && V_VT(event_obj) != VT_ERROR)
1069         FIXME("event_obj not implemented\n");
1070
1071     if(!(event_info[eid].flags & EVENT_DEFAULTLISTENER)) {
1072         FIXME("not EVENT_DEFAULTEVENTHANDLER\n");
1073         return E_NOTIMPL;
1074     }
1075
1076     fire_event(node->doc, eid, TRUE, node->nsnode, NULL);
1077
1078     *cancelled = VARIANT_TRUE; /* FIXME */
1079     return S_OK;
1080 }
1081
1082 HRESULT call_event(HTMLDOMNode *node, eventid_t eid)
1083 {
1084     HRESULT hres;
1085
1086     if(node->vtbl->call_event) {
1087         BOOL handled = FALSE;
1088
1089         hres = node->vtbl->call_event(node, eid, &handled);
1090         if(handled)
1091             return hres;
1092     }
1093
1094     fire_event(node->doc, eid, TRUE, node->nsnode, NULL);
1095     return S_OK;
1096 }
1097
1098 static inline event_target_t *get_event_target(event_target_t **event_target_ptr)
1099 {
1100     if(!*event_target_ptr)
1101         *event_target_ptr = heap_alloc_zero(sizeof(event_target_t));
1102     return *event_target_ptr;
1103 }
1104
1105 static BOOL alloc_handler_vector(event_target_t *event_target, eventid_t eid, int cnt)
1106 {
1107     handler_vector_t *new_vector, *handler_vector = event_target->event_table[eid];
1108
1109     if(handler_vector) {
1110         if(cnt <= handler_vector->handler_cnt)
1111             return TRUE;
1112
1113         new_vector = heap_realloc_zero(handler_vector, sizeof(handler_vector_t) + sizeof(IDispatch*)*cnt);
1114     }else {
1115         new_vector = heap_alloc_zero(sizeof(handler_vector_t) + sizeof(IDispatch*)*cnt);
1116     }
1117
1118     if(!new_vector)
1119         return FALSE;
1120
1121     new_vector->handler_cnt = cnt;
1122     event_target->event_table[eid] = new_vector;
1123     return TRUE;
1124 }
1125
1126 static HRESULT ensure_nsevent_handler(HTMLDocumentNode *doc, event_target_t *event_target, nsIDOMNode *nsnode, eventid_t eid)
1127 {
1128     if(!doc->nsdoc)
1129         return S_OK;
1130
1131     if(event_info[eid].flags & EVENT_NODEHANDLER) {
1132         DWORD mask;
1133
1134         mask = get_node_handler_mask(eid);
1135         if(event_target->node_handlers_mask & mask)
1136             return S_OK;
1137
1138         add_nsevent_listener(doc, nsnode, event_info[eid].name);
1139         event_target->node_handlers_mask |= mask;
1140         return S_OK;
1141     }
1142
1143     if(!(event_info[eid].flags & EVENT_DEFAULTLISTENER))
1144         return S_OK;
1145
1146     if(!doc->event_vector) {
1147         doc->event_vector = heap_alloc_zero(EVENTID_LAST*sizeof(BOOL));
1148         if(!doc->event_vector)
1149             return E_OUTOFMEMORY;
1150     }
1151
1152     if(!doc->event_vector[eid]) {
1153         doc->event_vector[eid] = TRUE;
1154         add_nsevent_listener(doc, NULL, event_info[eid].name);
1155     }
1156
1157     return S_OK;
1158 }
1159
1160 static HRESULT remove_event_handler(event_target_t **event_target, eventid_t eid)
1161 {
1162     if(*event_target && (*event_target)->event_table[eid] && (*event_target)->event_table[eid]->handler_prop) {
1163         IDispatch_Release((*event_target)->event_table[eid]->handler_prop);
1164         (*event_target)->event_table[eid]->handler_prop = NULL;
1165     }
1166
1167     return S_OK;
1168 }
1169
1170 static HRESULT set_event_handler_disp(event_target_t **event_target_ptr, nsIDOMNode *nsnode, HTMLDocumentNode *doc,
1171         eventid_t eid, IDispatch *disp)
1172 {
1173     event_target_t *event_target;
1174
1175     if(!disp)
1176         return remove_event_handler(event_target_ptr, eid);
1177
1178     event_target = get_event_target(event_target_ptr);
1179     if(!event_target)
1180         return E_OUTOFMEMORY;
1181
1182     if(!alloc_handler_vector(event_target, eid, 0))
1183         return E_OUTOFMEMORY;
1184
1185     if(event_target->event_table[eid]->handler_prop)
1186         IDispatch_Release(event_target->event_table[eid]->handler_prop);
1187
1188     event_target->event_table[eid]->handler_prop = disp;
1189     IDispatch_AddRef(disp);
1190
1191     return ensure_nsevent_handler(doc, event_target, nsnode, eid);
1192 }
1193
1194 HRESULT set_event_handler(event_target_t **event_target, nsIDOMNode *nsnode, HTMLDocumentNode *doc, eventid_t eid, VARIANT *var)
1195 {
1196     switch(V_VT(var)) {
1197     case VT_NULL:
1198         return remove_event_handler(event_target, eid);
1199
1200     case VT_DISPATCH:
1201         return set_event_handler_disp(event_target, nsnode, doc, eid, V_DISPATCH(var));
1202
1203     default:
1204         FIXME("not supported vt=%d\n", V_VT(var));
1205     case VT_EMPTY:
1206         return E_NOTIMPL;
1207     }
1208
1209     return S_OK;
1210 }
1211
1212 HRESULT get_event_handler(event_target_t **event_target, eventid_t eid, VARIANT *var)
1213 {
1214     if(*event_target && (*event_target)->event_table[eid] && (*event_target)->event_table[eid]->handler_prop) {
1215         V_VT(var) = VT_DISPATCH;
1216         V_DISPATCH(var) = (*event_target)->event_table[eid]->handler_prop;
1217         IDispatch_AddRef(V_DISPATCH(var));
1218     }else {
1219         V_VT(var) = VT_NULL;
1220     }
1221
1222     return S_OK;
1223 }
1224
1225 HRESULT attach_event(event_target_t **event_target_ptr, nsIDOMNode *nsnode, HTMLDocument *doc, BSTR name,
1226         IDispatch *disp, VARIANT_BOOL *res)
1227 {
1228     event_target_t *event_target;
1229     eventid_t eid;
1230     DWORD i = 0;
1231
1232     eid = attr_to_eid(name);
1233     if(eid == EVENTID_LAST) {
1234         WARN("Unknown event\n");
1235         *res = VARIANT_TRUE;
1236         return S_OK;
1237     }
1238
1239     event_target = get_event_target(event_target_ptr);
1240     if(!event_target)
1241         return E_OUTOFMEMORY;
1242
1243     if(event_target->event_table[eid]) {
1244         while(i < event_target->event_table[eid]->handler_cnt && event_target->event_table[eid]->handlers[i])
1245             i++;
1246         if(i == event_target->event_table[eid]->handler_cnt && !alloc_handler_vector(event_target, eid, i+1))
1247             return E_OUTOFMEMORY;
1248     }else if(!alloc_handler_vector(event_target, eid, i+1)) {
1249         return E_OUTOFMEMORY;
1250     }
1251
1252     IDispatch_AddRef(disp);
1253     event_target->event_table[eid]->handlers[i] = disp;
1254
1255     *res = VARIANT_TRUE;
1256     return ensure_nsevent_handler(doc->doc_node, event_target, nsnode, eid);
1257 }
1258
1259 HRESULT detach_event(event_target_t *event_target, HTMLDocument *doc, BSTR name, IDispatch *disp)
1260 {
1261     eventid_t eid;
1262     DWORD i = 0;
1263
1264     if(!event_target)
1265         return S_OK;
1266
1267     eid = attr_to_eid(name);
1268     if(eid == EVENTID_LAST) {
1269         WARN("Unknown event\n");
1270         return S_OK;
1271     }
1272
1273     if(!event_target->event_table[eid])
1274         return S_OK;
1275
1276     while(i < event_target->event_table[eid]->handler_cnt) {
1277         if(event_target->event_table[eid]->handlers[i] == disp) {
1278             IDispatch_Release(event_target->event_table[eid]->handlers[i]);
1279             event_target->event_table[eid]->handlers[i] = NULL;
1280         }
1281         i++;
1282     }
1283
1284     return S_OK;
1285 }
1286
1287 void update_cp_events(HTMLWindow *window, event_target_t **event_target_ptr, cp_static_data_t *cp, nsIDOMNode *nsnode)
1288 {
1289     event_target_t *event_target;
1290     int i;
1291
1292     event_target = get_event_target(event_target_ptr);
1293     if(!event_target)
1294         return; /* FIXME */
1295
1296     for(i=0; i < EVENTID_LAST; i++) {
1297         if((event_info[i].flags & EVENT_DEFAULTLISTENER) && is_cp_event(cp, event_info[i].dispid))
1298             ensure_nsevent_handler(window->doc, event_target, nsnode, i);
1299     }
1300 }
1301
1302 void check_event_attr(HTMLDocumentNode *doc, nsIDOMElement *nselem)
1303 {
1304     const PRUnichar *attr_value;
1305     nsAString attr_name_str, attr_value_str;
1306     IDispatch *disp;
1307     HTMLDOMNode *node;
1308     int i;
1309     nsresult nsres;
1310     HRESULT hres;
1311
1312     nsAString_Init(&attr_value_str, NULL);
1313     nsAString_Init(&attr_name_str, NULL);
1314
1315     for(i=0; i < EVENTID_LAST; i++) {
1316         nsAString_SetData(&attr_name_str, event_info[i].attr_name);
1317         nsres = nsIDOMElement_GetAttribute(nselem, &attr_name_str, &attr_value_str);
1318         if(NS_SUCCEEDED(nsres)) {
1319             nsAString_GetData(&attr_value_str, &attr_value);
1320             if(!*attr_value)
1321                 continue;
1322
1323             TRACE("%p.%s = %s\n", nselem, debugstr_w(event_info[i].attr_name), debugstr_w(attr_value));
1324
1325             disp = script_parse_event(doc->basedoc.window, attr_value);
1326             if(disp) {
1327                 hres = get_node(doc, (nsIDOMNode*)nselem, TRUE, &node);
1328                 if(SUCCEEDED(hres))
1329                     set_event_handler_disp(get_node_event_target(node), node->nsnode, node->doc, i, disp);
1330                 IDispatch_Release(disp);
1331             }
1332         }
1333     }
1334
1335     nsAString_Finish(&attr_value_str);
1336     nsAString_Finish(&attr_name_str);
1337 }
1338
1339 void release_event_target(event_target_t *event_target)
1340 {
1341     int i, j;
1342
1343     for(i=0; i < EVENTID_LAST; i++) {
1344         if(event_target->event_table[i]) {
1345             if(event_target->event_table[i]->handler_prop)
1346                 IDispatch_Release(event_target->event_table[i]->handler_prop);
1347             for(j=0; j < event_target->event_table[i]->handler_cnt; j++)
1348                 if(event_target->event_table[i]->handlers[j])
1349                     IDispatch_Release(event_target->event_table[i]->handlers[j]);
1350         }
1351     }
1352
1353     heap_free(event_target);
1354 }