comctl32/listview: Free ID array when removing all items.
[wine] / 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
28 #include "mshtml_private.h"
29 #include "htmlevent.h"
30
31 #include "wine/debug.h"
32
33 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
34
35 typedef struct {
36     IDispatch *handler_prop;
37     DWORD handler_cnt;
38     IDispatch *handlers[0];
39 } handler_vector_t;
40
41 struct event_target_t {
42     handler_vector_t *event_table[EVENTID_LAST];
43 };
44
45 static const WCHAR beforeunloadW[] = {'b','e','f','o','r','e','u','n','l','o','a','d',0};
46 static const WCHAR onbeforeunloadW[] = {'o','n','b','e','f','o','r','e','u','n','l','o','a','d',0};
47
48 static const WCHAR blurW[] = {'b','l','u','r',0};
49 static const WCHAR onblurW[] = {'o','n','b','l','u','r',0};
50
51 static const WCHAR changeW[] = {'c','h','a','n','g','e',0};
52 static const WCHAR onchangeW[] = {'o','n','c','h','a','n','g','e',0};
53
54 static const WCHAR clickW[] = {'c','l','i','c','k',0};
55 static const WCHAR onclickW[] = {'o','n','c','l','i','c','k',0};
56
57 static const WCHAR dblclickW[] = {'d','b','l','c','l','i','c','k',0};
58 static const WCHAR ondblclickW[] = {'o','n','d','b','l','c','l','i','c','k',0};
59
60 static const WCHAR dragW[] = {'d','r','a','g',0};
61 static const WCHAR ondragW[] = {'o','n','d','r','a','g',0};
62
63 static const WCHAR dragstartW[] = {'d','r','a','g','s','t','a','r','t',0};
64 static const WCHAR ondragstartW[] = {'o','n','d','r','a','g','s','t','a','r','t',0};
65
66 static const WCHAR focusW[] = {'f','o','c','u','s',0};
67 static const WCHAR onfocusW[] = {'o','n','f','o','c','u','s',0};
68
69 static const WCHAR keydownW[] = {'k','e','y','d','o','w','n',0};
70 static const WCHAR onkeydownW[] = {'o','n','k','e','y','d','o','w','n',0};
71
72 static const WCHAR keyupW[] = {'k','e','y','u','p',0};
73 static const WCHAR onkeyupW[] = {'o','n','k','e','y','u','p',0};
74
75 static const WCHAR loadW[] = {'l','o','a','d',0};
76 static const WCHAR onloadW[] = {'o','n','l','o','a','d',0};
77
78 static const WCHAR mousedownW[] = {'m','o','u','s','e','d','o','w','n',0};
79 static const WCHAR onmousedownW[] = {'o','n','m','o','u','s','e','d','o','w','n',0};
80
81 static const WCHAR mouseoutW[] = {'m','o','u','s','e','o','u','t',0};
82 static const WCHAR onmouseoutW[] = {'o','n','m','o','u','s','e','o','u','t',0};
83
84 static const WCHAR mouseoverW[] = {'m','o','u','s','e','o','v','e','r',0};
85 static const WCHAR onmouseoverW[] = {'o','n','m','o','u','s','e','o','v','e','r',0};
86
87 static const WCHAR mouseupW[] = {'m','o','u','s','e','u','p',0};
88 static const WCHAR onmouseupW[] = {'o','n','m','o','u','s','e','u','p',0};
89
90 static const WCHAR pasteW[] = {'p','a','s','t','e',0};
91 static const WCHAR onpasteW[] = {'o','n','p','a','s','t','e',0};
92
93 static const WCHAR readystatechangeW[] = {'r','e','a','d','y','s','t','a','t','e','c','h','a','n','g','e',0};
94 static const WCHAR onreadystatechangeW[] = {'o','n','r','e','a','d','y','s','t','a','t','e','c','h','a','n','g','e',0};
95
96 static const WCHAR selectstartW[] = {'s','e','l','e','c','t','s','t','a','r','t',0};
97 static const WCHAR onselectstartW[] = {'o','n','s','e','l','e','c','t','s','t','a','r','t',0};
98
99 static const WCHAR HTMLEventsW[] = {'H','T','M','L','E','v','e','n','t','s',0};
100 static const WCHAR KeyboardEventW[] = {'K','e','y','b','o','a','r','d','E','v','e','n','t',0};
101 static const WCHAR MouseEventW[] = {'M','o','u','s','e','E','v','e','n','t',0};
102
103 enum {
104     EVENTT_NONE,
105     EVENTT_HTML,
106     EVENTT_KEY,
107     EVENTT_MOUSE
108 };
109
110 static const WCHAR *event_types[] = {
111     NULL,
112     HTMLEventsW,
113     KeyboardEventW,
114     MouseEventW
115 };
116
117 typedef struct {
118     LPCWSTR name;
119     LPCWSTR attr_name;
120     DWORD type;
121     DWORD flags;
122 } event_info_t;
123
124 #define EVENT_DEFAULTLISTENER    0x0001
125 #define EVENT_BUBBLE             0x0002
126 #define EVENT_FORWARDBODY        0x0004
127
128 static const event_info_t event_info[] = {
129     {beforeunloadW,      onbeforeunloadW,      EVENTT_NONE,  EVENT_DEFAULTLISTENER|EVENT_FORWARDBODY},
130     {blurW,              onblurW,              EVENTT_HTML,  EVENT_DEFAULTLISTENER},
131     {changeW,            onchangeW,            EVENTT_HTML,  EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
132     {clickW,             onclickW,             EVENTT_MOUSE, EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
133     {dblclickW,          ondblclickW,          EVENTT_MOUSE, EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
134     {dragW,              ondragW,              EVENTT_MOUSE, 0},
135     {dragstartW,         ondragstartW,         EVENTT_MOUSE, 0},
136     {focusW,             onfocusW,             EVENTT_HTML,  EVENT_DEFAULTLISTENER},
137     {keydownW,           onkeydownW,           EVENTT_KEY,   EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
138     {keyupW,             onkeyupW,             EVENTT_KEY,   EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
139     {loadW,              onloadW,              EVENTT_HTML,  0},
140     {mousedownW,         onmousedownW,         EVENTT_MOUSE, EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
141     {mouseoutW,          onmouseoutW,          EVENTT_MOUSE, EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
142     {mouseoverW,         onmouseoverW,         EVENTT_MOUSE, EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
143     {mouseupW,           onmouseupW,           EVENTT_MOUSE, EVENT_DEFAULTLISTENER|EVENT_BUBBLE},
144     {pasteW,             onpasteW,             EVENTT_NONE,  0},
145     {readystatechangeW,  onreadystatechangeW,  EVENTT_NONE,  0},
146     {selectstartW,       onselectstartW,       EVENTT_MOUSE, 0}
147 };
148
149 eventid_t str_to_eid(LPCWSTR str)
150 {
151     int i;
152
153     for(i=0; i < sizeof(event_info)/sizeof(event_info[0]); i++) {
154         if(!strcmpW(event_info[i].name, str))
155             return i;
156     }
157
158     ERR("unknown type %s\n", debugstr_w(str));
159     return EVENTID_LAST;
160 }
161
162 static eventid_t attr_to_eid(LPCWSTR str)
163 {
164     int i;
165
166     for(i=0; i < sizeof(event_info)/sizeof(event_info[0]); i++) {
167         if(!strcmpW(event_info[i].attr_name, str))
168             return i;
169     }
170
171     return EVENTID_LAST;
172 }
173
174 typedef struct {
175     DispatchEx dispex;
176     const IHTMLEventObjVtbl  *lpIHTMLEventObjVtbl;
177
178     LONG ref;
179
180     HTMLDOMNode *target;
181     const event_info_t *type;
182     nsIDOMEvent *nsevent;
183 } HTMLEventObj;
184
185 #define HTMLEVENTOBJ(x) ((IHTMLEventObj*) &(x)->lpIHTMLEventObjVtbl)
186
187 #define HTMLEVENTOBJ_THIS(iface) DEFINE_THIS(HTMLEventObj, IHTMLEventObj, iface)
188
189 static HRESULT WINAPI HTMLEventObj_QueryInterface(IHTMLEventObj *iface, REFIID riid, void **ppv)
190 {
191     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
192
193     *ppv = NULL;
194
195     if(IsEqualGUID(&IID_IUnknown, riid)) {
196         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
197         *ppv = HTMLEVENTOBJ(This);
198     }else if(IsEqualGUID(&IID_IHTMLEventObj, riid)) {
199         TRACE("(%p)->(IID_IHTMLEventObj %p)\n", This, ppv);
200         *ppv = HTMLEVENTOBJ(This);
201     }else if(dispex_query_interface(&This->dispex, riid, ppv)) {
202         return *ppv ? S_OK : E_NOINTERFACE;
203     }
204
205     if(*ppv) {
206         IUnknown_AddRef((IUnknown*)*ppv);
207         return S_OK;
208     }
209
210     WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
211     return E_NOINTERFACE;
212 }
213
214 static ULONG WINAPI HTMLEventObj_AddRef(IHTMLEventObj *iface)
215 {
216     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
217     LONG ref = InterlockedIncrement(&This->ref);
218
219     TRACE("(%p) ref=%d\n", This, ref);
220
221     return ref;
222 }
223
224 static ULONG WINAPI HTMLEventObj_Release(IHTMLEventObj *iface)
225 {
226     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
227     LONG ref = InterlockedDecrement(&This->ref);
228
229     TRACE("(%p) ref=%d\n", This, ref);
230
231     if(!ref) {
232         if(This->nsevent)
233             nsIDOMEvent_Release(This->nsevent);
234         release_dispex(&This->dispex);
235         heap_free(This);
236     }
237
238     return ref;
239 }
240
241 static HRESULT WINAPI HTMLEventObj_GetTypeInfoCount(IHTMLEventObj *iface, UINT *pctinfo)
242 {
243     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
244     FIXME("(%p)->(%p)\n", This, pctinfo);
245     return E_NOTIMPL;
246 }
247
248 static HRESULT WINAPI HTMLEventObj_GetTypeInfo(IHTMLEventObj *iface, UINT iTInfo,
249                                               LCID lcid, ITypeInfo **ppTInfo)
250 {
251     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
252     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
253     return E_NOTIMPL;
254 }
255
256 static HRESULT WINAPI HTMLEventObj_GetIDsOfNames(IHTMLEventObj *iface, REFIID riid,
257                                                 LPOLESTR *rgszNames, UINT cNames,
258                                                 LCID lcid, DISPID *rgDispId)
259 {
260     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
261     FIXME("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
262           lcid, rgDispId);
263     return E_NOTIMPL;
264 }
265
266 static HRESULT WINAPI HTMLEventObj_Invoke(IHTMLEventObj *iface, DISPID dispIdMember,
267                             REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
268                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
269 {
270     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
271     FIXME("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
272           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
273     return E_NOTIMPL;
274 }
275
276 static HRESULT WINAPI HTMLEventObj_get_srcElement(IHTMLEventObj *iface, IHTMLElement **p)
277 {
278     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
279
280     TRACE("(%p)->(%p)\n", This, p);
281
282     return IHTMLDOMNode_QueryInterface(HTMLDOMNODE(This->target), &IID_IHTMLElement, (void**)p);
283 }
284
285 static HRESULT WINAPI HTMLEventObj_get_altKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
286 {
287     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
288     PRBool ret = FALSE;
289
290     TRACE("(%p)->(%p)\n", This, p);
291
292     if(This->nsevent) {
293         nsIDOMKeyEvent *key_event;
294         nsresult nsres;
295
296         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
297         if(NS_SUCCEEDED(nsres)) {
298             nsIDOMKeyEvent_GetAltKey(key_event, &ret);
299             nsIDOMKeyEvent_Release(key_event);
300         }else {
301             nsIDOMMouseEvent *mouse_event;
302
303             nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
304             if(NS_SUCCEEDED(nsres)) {
305                 nsIDOMMouseEvent_GetAltKey(mouse_event, &ret);
306                 nsIDOMMouseEvent_Release(mouse_event);
307             }
308         }
309     }
310
311     *p = ret ? VARIANT_TRUE : VARIANT_FALSE;
312     return S_OK;
313 }
314
315 static HRESULT WINAPI HTMLEventObj_get_ctrlKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
316 {
317     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
318     PRBool ret = FALSE;
319
320     TRACE("(%p)->(%p)\n", This, p);
321
322     if(This->nsevent) {
323         nsIDOMKeyEvent *key_event;
324         nsresult nsres;
325
326         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
327         if(NS_SUCCEEDED(nsres)) {
328             nsIDOMKeyEvent_GetCtrlKey(key_event, &ret);
329             nsIDOMKeyEvent_Release(key_event);
330         }else {
331             nsIDOMMouseEvent *mouse_event;
332
333             nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
334             if(NS_SUCCEEDED(nsres)) {
335                 nsIDOMMouseEvent_GetCtrlKey(mouse_event, &ret);
336                 nsIDOMMouseEvent_Release(mouse_event);
337             }
338         }
339     }
340
341     *p = ret ? VARIANT_TRUE : VARIANT_FALSE;
342     return S_OK;
343 }
344
345 static HRESULT WINAPI HTMLEventObj_get_shiftKey(IHTMLEventObj *iface, VARIANT_BOOL *p)
346 {
347     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
348     PRBool ret = FALSE;
349
350     TRACE("(%p)->(%p)\n", This, p);
351
352     if(This->nsevent) {
353         nsIDOMKeyEvent *key_event;
354         nsresult nsres;
355
356         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
357         if(NS_SUCCEEDED(nsres)) {
358             nsIDOMKeyEvent_GetShiftKey(key_event, &ret);
359             nsIDOMKeyEvent_Release(key_event);
360         }else {
361             nsIDOMMouseEvent *mouse_event;
362
363             nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
364             if(NS_SUCCEEDED(nsres)) {
365                 nsIDOMMouseEvent_GetShiftKey(mouse_event, &ret);
366                 nsIDOMMouseEvent_Release(mouse_event);
367             }
368         }
369     }
370
371     *p = ret ? VARIANT_TRUE : VARIANT_FALSE;
372     return S_OK;
373 }
374
375 static HRESULT WINAPI HTMLEventObj_put_returnValue(IHTMLEventObj *iface, VARIANT v)
376 {
377     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
378     FIXME("(%p)->()\n", This);
379     return E_NOTIMPL;
380 }
381
382 static HRESULT WINAPI HTMLEventObj_get_returnValue(IHTMLEventObj *iface, VARIANT *p)
383 {
384     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
385
386     FIXME("(%p)->(%p)\n", This, p);
387
388     V_VT(p) = VT_EMPTY;
389     return S_OK;
390 }
391
392 static HRESULT WINAPI HTMLEventObj_put_cancelBubble(IHTMLEventObj *iface, VARIANT_BOOL v)
393 {
394     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
395     FIXME("(%p)->(%x)\n", This, v);
396     return E_NOTIMPL;
397 }
398
399 static HRESULT WINAPI HTMLEventObj_get_cancelBubble(IHTMLEventObj *iface, VARIANT_BOOL *p)
400 {
401     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
402
403     FIXME("(%p)->(%p)\n", This, p);
404
405     *p = VARIANT_FALSE;
406     return S_OK;
407 }
408
409 static HRESULT WINAPI HTMLEventObj_get_fromElement(IHTMLEventObj *iface, IHTMLElement **p)
410 {
411     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
412
413     FIXME("(%p)->(%p)\n", This, p);
414
415     *p = NULL;
416     return S_OK;
417 }
418
419 static HRESULT WINAPI HTMLEventObj_get_toElement(IHTMLEventObj *iface, IHTMLElement **p)
420 {
421     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
422
423     FIXME("(%p)->(%p)\n", This, p);
424
425     *p = NULL;
426     return S_OK;
427 }
428
429 static HRESULT WINAPI HTMLEventObj_put_keyCode(IHTMLEventObj *iface, LONG v)
430 {
431     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
432     FIXME("(%p)->(%d)\n", This, v);
433     return E_NOTIMPL;
434 }
435
436 static HRESULT WINAPI HTMLEventObj_get_keyCode(IHTMLEventObj *iface, LONG *p)
437 {
438     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
439     PRUint32 key_code = 0;
440
441     TRACE("(%p)->(%p)\n", This, p);
442
443     if(This->nsevent) {
444         nsIDOMKeyEvent *key_event;
445         nsresult nsres;
446
447         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMKeyEvent, (void**)&key_event);
448         if(NS_SUCCEEDED(nsres)) {
449             nsIDOMKeyEvent_GetKeyCode(key_event, &key_code);
450             nsIDOMKeyEvent_Release(key_event);
451         }
452     }
453
454     *p = key_code;
455     return S_OK;
456 }
457
458 static HRESULT WINAPI HTMLEventObj_get_button(IHTMLEventObj *iface, LONG *p)
459 {
460     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
461     PRUint16 button = 0;
462
463     TRACE("(%p)->(%p)\n", This, p);
464
465     if(This->nsevent) {
466         nsIDOMMouseEvent *mouse_event;
467         nsresult nsres;
468
469         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
470         if(NS_SUCCEEDED(nsres)) {
471             nsIDOMMouseEvent_GetButton(mouse_event, &button);
472             nsIDOMMouseEvent_Release(mouse_event);
473         }
474     }
475
476     *p = button;
477     return S_OK;
478 }
479
480 static HRESULT WINAPI HTMLEventObj_get_type(IHTMLEventObj *iface, BSTR *p)
481 {
482     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
483
484     TRACE("(%p)->(%p)\n", This, p);
485
486     *p = SysAllocString(This->type->name);
487     return *p ? S_OK : E_OUTOFMEMORY;
488 }
489
490 static HRESULT WINAPI HTMLEventObj_get_qualifier(IHTMLEventObj *iface, BSTR *p)
491 {
492     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
493
494     FIXME("(%p)->(%p)\n", This, p);
495
496     *p = NULL;
497     return S_OK;
498 }
499
500 static HRESULT WINAPI HTMLEventObj_get_reason(IHTMLEventObj *iface, LONG *p)
501 {
502     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
503
504     FIXME("(%p)->(%p)\n", This, p);
505
506     *p = 0;
507     return S_OK;
508 }
509
510 static HRESULT WINAPI HTMLEventObj_get_x(IHTMLEventObj *iface, LONG *p)
511 {
512     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
513
514     FIXME("(%p)->(%p)\n", This, p);
515
516     *p = -1;
517     return S_OK;
518 }
519
520 static HRESULT WINAPI HTMLEventObj_get_y(IHTMLEventObj *iface, LONG *p)
521 {
522     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
523
524     FIXME("(%p)->(%p)\n", This, p);
525
526     *p = -1;
527     return S_OK;
528 }
529
530 static HRESULT WINAPI HTMLEventObj_get_clientX(IHTMLEventObj *iface, LONG *p)
531 {
532     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
533     PRInt32 x = 0;
534
535     TRACE("(%p)->(%p)\n", This, p);
536
537     if(This->nsevent) {
538         nsIDOMMouseEvent *mouse_event;
539         nsresult nsres;
540
541         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
542         if(NS_SUCCEEDED(nsres)) {
543             nsIDOMMouseEvent_GetClientX(mouse_event, &x);
544             nsIDOMMouseEvent_Release(mouse_event);
545         }
546     }
547
548     *p = x;
549     return S_OK;
550 }
551
552 static HRESULT WINAPI HTMLEventObj_get_clientY(IHTMLEventObj *iface, LONG *p)
553 {
554     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
555     PRInt32 y = 0;
556
557     TRACE("(%p)->(%p)\n", This, p);
558
559     if(This->nsevent) {
560         nsIDOMMouseEvent *mouse_event;
561         nsresult nsres;
562
563         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
564         if(NS_SUCCEEDED(nsres)) {
565             nsIDOMMouseEvent_GetClientY(mouse_event, &y);
566             nsIDOMMouseEvent_Release(mouse_event);
567         }
568     }
569
570     *p = y;
571     return S_OK;
572 }
573
574 static HRESULT WINAPI HTMLEventObj_get_offsetX(IHTMLEventObj *iface, LONG *p)
575 {
576     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
577
578     FIXME("(%p)->(%p)\n", This, p);
579
580     *p = 0;
581     return S_OK;
582 }
583
584 static HRESULT WINAPI HTMLEventObj_get_offsetY(IHTMLEventObj *iface, LONG *p)
585 {
586     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
587
588     FIXME("(%p)->(%p)\n", This, p);
589
590     *p = 0;
591     return S_OK;
592 }
593
594 static HRESULT WINAPI HTMLEventObj_get_screenX(IHTMLEventObj *iface, LONG *p)
595 {
596     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
597     PRInt32 x = 0;
598
599     TRACE("(%p)->(%p)\n", This, p);
600
601     if(This->nsevent) {
602         nsIDOMMouseEvent *mouse_event;
603         nsresult nsres;
604
605         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
606         if(NS_SUCCEEDED(nsres)) {
607             nsIDOMMouseEvent_GetScreenX(mouse_event, &x);
608             nsIDOMMouseEvent_Release(mouse_event);
609         }
610     }
611
612     *p = x;
613     return S_OK;
614 }
615
616 static HRESULT WINAPI HTMLEventObj_get_screenY(IHTMLEventObj *iface, LONG *p)
617 {
618     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
619     PRInt32 y = 0;
620
621     TRACE("(%p)->(%p)\n", This, p);
622
623     if(This->nsevent) {
624         nsIDOMMouseEvent *mouse_event;
625         nsresult nsres;
626
627         nsres = nsIDOMEvent_QueryInterface(This->nsevent, &IID_nsIDOMMouseEvent, (void**)&mouse_event);
628         if(NS_SUCCEEDED(nsres)) {
629             nsIDOMMouseEvent_GetScreenY(mouse_event, &y);
630             nsIDOMMouseEvent_Release(mouse_event);
631         }
632     }
633
634     *p = y;
635     return S_OK;
636 }
637
638 static HRESULT WINAPI HTMLEventObj_get_srcFilter(IHTMLEventObj *iface, IDispatch **p)
639 {
640     HTMLEventObj *This = HTMLEVENTOBJ_THIS(iface);
641
642     FIXME("(%p)->(%p)\n", This, p);
643
644     *p = NULL;
645     return S_OK;
646 }
647
648 #undef HTMLEVENTOBJ_THIS
649
650 static const IHTMLEventObjVtbl HTMLEventObjVtbl = {
651     HTMLEventObj_QueryInterface,
652     HTMLEventObj_AddRef,
653     HTMLEventObj_Release,
654     HTMLEventObj_GetTypeInfoCount,
655     HTMLEventObj_GetTypeInfo,
656     HTMLEventObj_GetIDsOfNames,
657     HTMLEventObj_Invoke,
658     HTMLEventObj_get_srcElement,
659     HTMLEventObj_get_altKey,
660     HTMLEventObj_get_ctrlKey,
661     HTMLEventObj_get_shiftKey,
662     HTMLEventObj_put_returnValue,
663     HTMLEventObj_get_returnValue,
664     HTMLEventObj_put_cancelBubble,
665     HTMLEventObj_get_cancelBubble,
666     HTMLEventObj_get_fromElement,
667     HTMLEventObj_get_toElement,
668     HTMLEventObj_put_keyCode,
669     HTMLEventObj_get_keyCode,
670     HTMLEventObj_get_button,
671     HTMLEventObj_get_type,
672     HTMLEventObj_get_qualifier,
673     HTMLEventObj_get_reason,
674     HTMLEventObj_get_x,
675     HTMLEventObj_get_y,
676     HTMLEventObj_get_clientX,
677     HTMLEventObj_get_clientY,
678     HTMLEventObj_get_offsetX,
679     HTMLEventObj_get_offsetY,
680     HTMLEventObj_get_screenX,
681     HTMLEventObj_get_screenY,
682     HTMLEventObj_get_srcFilter
683 };
684
685 static const tid_t HTMLEventObj_iface_tids[] = {
686     IHTMLEventObj_tid,
687     0
688 };
689
690 static dispex_static_data_t HTMLEventObj_dispex = {
691     NULL,
692     DispCEventObj_tid,
693     NULL,
694     HTMLEventObj_iface_tids
695 };
696
697 static IHTMLEventObj *create_event(HTMLDOMNode *target, eventid_t eid, nsIDOMEvent *nsevent)
698 {
699     HTMLEventObj *ret;
700
701     ret = heap_alloc(sizeof(*ret));
702     if(!ret)
703         return NULL;
704
705     ret->lpIHTMLEventObjVtbl = &HTMLEventObjVtbl;
706     ret->ref = 1;
707     ret->type = event_info+eid;
708
709     ret->nsevent = nsevent;
710     if(nsevent) {
711         nsIDOMEvent_AddRef(nsevent);
712     }else if(event_types[event_info[eid].type]) {
713         nsIDOMDocumentEvent *doc_event;
714         nsresult nsres;
715
716         nsres = nsIDOMHTMLDocument_QueryInterface(target->doc->nsdoc, &IID_nsIDOMDocumentEvent,
717                  (void**)&doc_event);
718         if(NS_SUCCEEDED(nsres)) {
719             nsAString type_str;
720
721             nsAString_Init(&type_str, event_types[event_info[eid].type]);
722             nsres = nsIDOMDocumentEvent_CreateEvent(doc_event, &type_str, &ret->nsevent);
723             nsAString_Finish(&type_str);
724             nsIDOMDocumentEvent_Release(doc_event);
725         }
726         if(NS_FAILED(nsres)) {
727             ERR("Could not create event: %08x\n", nsres);
728             IHTMLEventObj_Release(HTMLEVENTOBJ(ret));
729             return NULL;
730         }
731     }
732
733     ret->target = target;
734     IHTMLDOMNode_AddRef(HTMLDOMNODE(target));
735
736     init_dispex(&ret->dispex, (IUnknown*)HTMLEVENTOBJ(ret), &HTMLEventObj_dispex);
737
738     return HTMLEVENTOBJ(ret);
739 }
740
741 static void call_event_handlers(HTMLDocumentNode *doc, IHTMLEventObj *event_obj, event_target_t *event_target,
742         eventid_t eid, IDispatch *this_obj)
743 {
744     handler_vector_t *handler_vector;
745     DWORD i;
746     HRESULT hres;
747
748     if(!event_target || !(handler_vector = event_target->event_table[eid]))
749         return;
750
751     if(handler_vector->handler_prop) {
752         DISPID named_arg = DISPID_THIS;
753         VARIANTARG arg;
754         DISPPARAMS dp = {&arg, &named_arg, 1, 1};
755
756         V_VT(&arg) = VT_DISPATCH;
757         V_DISPATCH(&arg) = this_obj;
758
759         TRACE("%s >>>\n", debugstr_w(event_info[eid].name));
760         hres = call_disp_func(handler_vector->handler_prop, &dp);
761         if(hres == S_OK)
762             TRACE("%s <<<\n", debugstr_w(event_info[eid].name));
763         else
764             WARN("%s <<< %08x\n", debugstr_w(event_info[eid].name), hres);
765     }
766
767     if(handler_vector->handler_cnt) {
768         VARIANTARG arg;
769         DISPPARAMS dp = {&arg, NULL, 1, 0};
770
771         V_VT(&arg) = VT_DISPATCH;
772         V_DISPATCH(&arg) = (IDispatch*)event_obj;
773
774         for(i=0; i < handler_vector->handler_cnt; i++) {
775             if(handler_vector->handlers[i]) {
776                 TRACE("%s [%d] >>>\n", debugstr_w(event_info[eid].name), i);
777                 hres = call_disp_func(handler_vector->handlers[i], &dp);
778                 if(hres == S_OK)
779                     TRACE("%s [%d] <<<\n", debugstr_w(event_info[eid].name), i);
780                 else
781                     WARN("%s [%d] <<< %08x\n", debugstr_w(event_info[eid].name), i, hres);
782             }
783         }
784     }
785 }
786
787 void fire_event(HTMLDocumentNode *doc, eventid_t eid, nsIDOMNode *target, nsIDOMEvent *nsevent)
788 {
789     IHTMLEventObj *prev_event, *event_obj = NULL;
790     nsIDOMNode *parent, *nsnode;
791     HTMLDOMNode *node;
792     PRUint16 node_type;
793
794     TRACE("(%p) %s\n", doc, debugstr_w(event_info[eid].name));
795
796     prev_event = doc->basedoc.window->event;
797     event_obj = doc->basedoc.window->event = create_event(get_node(doc, target, TRUE), eid, nsevent);
798
799     nsIDOMNode_GetNodeType(target, &node_type);
800     nsnode = target;
801     nsIDOMNode_AddRef(nsnode);
802
803     switch(node_type) {
804     case ELEMENT_NODE:
805         do {
806             node = get_node(doc, nsnode, FALSE);
807             if(node)
808                 call_event_handlers(doc, event_obj, *get_node_event_target(node), eid, (IDispatch*)HTMLDOMNODE(node));
809
810             if(!(event_info[eid].flags & EVENT_BUBBLE))
811                 break;
812
813             nsIDOMNode_GetParentNode(nsnode, &parent);
814             nsIDOMNode_Release(nsnode);
815             nsnode = parent;
816             if(!nsnode)
817                 break;
818
819             nsIDOMNode_GetNodeType(nsnode, &node_type);
820         }while(node_type == ELEMENT_NODE);
821
822         if(!(event_info[eid].flags & EVENT_BUBBLE))
823             break;
824
825     case DOCUMENT_NODE:
826         if(event_info[eid].flags & EVENT_FORWARDBODY) {
827             nsIDOMHTMLElement *nsbody;
828             nsresult nsres;
829
830             nsres = nsIDOMHTMLDocument_GetBody(doc->nsdoc, &nsbody);
831             if(NS_SUCCEEDED(nsres) && nsbody) {
832                 node = get_node(doc, (nsIDOMNode*)nsbody, FALSE);
833                 if(node)
834                     call_event_handlers(doc, event_obj, *get_node_event_target(node), eid, (IDispatch*)HTMLDOMNODE(node));
835                 nsIDOMHTMLElement_Release(nsbody);
836             }else {
837                 ERR("Could not get body: %08x\n", nsres);
838             }
839         }
840
841         call_event_handlers(doc, event_obj, doc->basedoc.doc_node->node.event_target, eid,
842                 (IDispatch*)HTMLDOC(&doc->basedoc));
843         break;
844
845     default:
846         FIXME("unimplemented node type %d\n", node_type);
847     }
848
849     if(nsnode)
850         nsIDOMNode_Release(nsnode);
851
852     IHTMLEventObj_Release(event_obj);
853     doc->basedoc.window->event = prev_event;
854 }
855
856 HRESULT dispatch_event(HTMLDOMNode *node, const WCHAR *event_name, VARIANT *event_obj, VARIANT_BOOL *cancelled)
857 {
858     eventid_t eid;
859
860     eid = attr_to_eid(event_name);
861     if(eid == EVENTID_LAST) {
862         WARN("unknown event %s\n", debugstr_w(event_name));
863         return E_INVALIDARG;
864     }
865
866     if(event_obj && V_VT(event_obj) != VT_EMPTY && V_VT(event_obj) != VT_ERROR)
867         FIXME("event_obj not implemented\n");
868
869     if(!(event_info[eid].flags & EVENT_DEFAULTLISTENER)) {
870         FIXME("not EVENT_DEFAULTEVENTHANDLER\n");
871         return E_NOTIMPL;
872     }
873
874     fire_event(node->doc, eid, node->nsnode, NULL);
875
876     *cancelled = VARIANT_TRUE; /* FIXME */
877     return S_OK;
878 }
879
880 HRESULT call_event(HTMLDOMNode *node, eventid_t eid)
881 {
882     HRESULT hres;
883
884     if(node->vtbl->call_event) {
885         BOOL handled = FALSE;
886
887         hres = node->vtbl->call_event(node, eid, &handled);
888         if(handled)
889             return hres;
890     }
891
892     fire_event(node->doc, eid, node->nsnode, NULL);
893     return S_OK;
894 }
895
896 static inline event_target_t *get_event_target(event_target_t **event_target_ptr)
897 {
898     if(!*event_target_ptr)
899         *event_target_ptr = heap_alloc_zero(sizeof(event_target_t));
900     return *event_target_ptr;
901 }
902
903 static BOOL alloc_handler_vector(event_target_t *event_target, eventid_t eid, int cnt)
904 {
905     handler_vector_t *new_vector, *handler_vector = event_target->event_table[eid];
906
907     if(handler_vector) {
908         if(cnt <= handler_vector->handler_cnt)
909             return TRUE;
910
911         new_vector = heap_realloc_zero(handler_vector, sizeof(handler_vector_t) + sizeof(IDispatch*)*cnt);
912     }else {
913         new_vector = heap_alloc_zero(sizeof(handler_vector_t) + sizeof(IDispatch*)*cnt);
914     }
915
916     if(!new_vector)
917         return FALSE;
918
919     new_vector->handler_cnt = cnt;
920     event_target->event_table[eid] = new_vector;
921     return TRUE;
922 }
923
924 static HRESULT set_event_handler_disp(event_target_t **event_target_ptr, HTMLWindow *window, eventid_t eid, IDispatch *disp)
925 {
926     event_target_t *event_target;
927
928     event_target = get_event_target(event_target_ptr);
929     if(!event_target)
930         return E_OUTOFMEMORY;
931
932     if(!alloc_handler_vector(event_target, eid, 0))
933         return E_OUTOFMEMORY;
934
935     if(event_target->event_table[eid]->handler_prop)
936         IDispatch_Release(event_target->event_table[eid]->handler_prop);
937
938     event_target->event_table[eid]->handler_prop = disp;
939     if(!disp)
940         return S_OK;
941     IDispatch_AddRef(disp);
942
943     if(window->nswindow && (event_info[eid].flags & EVENT_DEFAULTLISTENER)) {
944         if(!window->event_vector) {
945             window->event_vector = heap_alloc_zero(EVENTID_LAST*sizeof(BOOL));
946             if(!window->event_vector)
947                 return E_OUTOFMEMORY;
948         }
949
950         if(!window->event_vector[eid]) {
951             window->event_vector[eid] = TRUE;
952             add_nsevent_listener(window, event_info[eid].name);
953         }
954     }
955
956     return S_OK;
957 }
958
959 HRESULT set_event_handler(event_target_t **event_target, HTMLDocument *doc, eventid_t eid, VARIANT *var)
960 {
961     switch(V_VT(var)) {
962     case VT_NULL:
963         if(*event_target && (*event_target)->event_table[eid] && (*event_target)->event_table[eid]->handler_prop) {
964             IDispatch_Release((*event_target)->event_table[eid]->handler_prop);
965             (*event_target)->event_table[eid]->handler_prop = NULL;
966         }
967         break;
968
969     case VT_DISPATCH:
970         return set_event_handler_disp(event_target, doc->window, eid, V_DISPATCH(var));
971
972     default:
973         FIXME("not supported vt=%d\n", V_VT(var));
974         return E_NOTIMPL;
975     }
976
977     return S_OK;
978 }
979
980 HRESULT get_event_handler(event_target_t **event_target, eventid_t eid, VARIANT *var)
981 {
982     if(*event_target && (*event_target)->event_table[eid] && (*event_target)->event_table[eid]->handler_prop) {
983         V_VT(var) = VT_DISPATCH;
984         V_DISPATCH(var) = (*event_target)->event_table[eid]->handler_prop;
985         IDispatch_AddRef(V_DISPATCH(var));
986     }else {
987         V_VT(var) = VT_NULL;
988     }
989
990     return S_OK;
991 }
992
993 HRESULT attach_event(event_target_t **event_target_ptr, HTMLDocument *doc, BSTR name, IDispatch *disp, VARIANT_BOOL *res)
994 {
995     event_target_t *event_target;
996     eventid_t eid;
997     DWORD i = 0;
998
999     eid = attr_to_eid(name);
1000     if(eid == EVENTID_LAST) {
1001         WARN("Unknown event\n");
1002         *res = VARIANT_TRUE;
1003         return S_OK;
1004     }
1005
1006     event_target = get_event_target(event_target_ptr);
1007     if(!event_target)
1008         return E_OUTOFMEMORY;
1009
1010     if(event_target->event_table[eid]) {
1011         while(i < event_target->event_table[eid]->handler_cnt && event_target->event_table[eid]->handlers[i])
1012             i++;
1013         if(i == event_target->event_table[eid]->handler_cnt && !alloc_handler_vector(event_target, eid, i+1))
1014             return E_OUTOFMEMORY;
1015     }else if(!alloc_handler_vector(event_target, eid, i+1)) {
1016         return E_OUTOFMEMORY;
1017     }
1018
1019     IDispatch_AddRef(disp);
1020     event_target->event_table[eid]->handlers[i] = disp;
1021
1022     *res = VARIANT_TRUE;
1023     return S_OK;
1024 }
1025
1026 void check_event_attr(HTMLDocumentNode *doc, nsIDOMElement *nselem)
1027 {
1028     const PRUnichar *attr_value;
1029     nsAString attr_name_str, attr_value_str;
1030     IDispatch *disp;
1031     HTMLDOMNode *node;
1032     int i;
1033     nsresult nsres;
1034
1035     nsAString_Init(&attr_value_str, NULL);
1036     nsAString_Init(&attr_name_str, NULL);
1037
1038     for(i=0; i < EVENTID_LAST; i++) {
1039         nsAString_SetData(&attr_name_str, event_info[i].attr_name);
1040         nsres = nsIDOMElement_GetAttribute(nselem, &attr_name_str, &attr_value_str);
1041         if(NS_SUCCEEDED(nsres)) {
1042             nsAString_GetData(&attr_value_str, &attr_value);
1043             if(!*attr_value)
1044                 continue;
1045
1046             TRACE("%p.%s = %s\n", nselem, debugstr_w(event_info[i].attr_name), debugstr_w(attr_value));
1047
1048             disp = script_parse_event(doc->basedoc.window, attr_value);
1049             if(disp) {
1050                 node = get_node(doc, (nsIDOMNode*)nselem, TRUE);
1051                 set_event_handler_disp(get_node_event_target(node), node->doc->basedoc.window, i, disp);
1052                 IDispatch_Release(disp);
1053             }
1054         }
1055     }
1056
1057     nsAString_Finish(&attr_value_str);
1058     nsAString_Finish(&attr_name_str);
1059 }
1060
1061 void release_event_target(event_target_t *event_target)
1062 {
1063     int i, j;
1064
1065     for(i=0; i < EVENTID_LAST; i++) {
1066         if(event_target->event_table[i]) {
1067             if(event_target->event_table[i]->handler_prop)
1068                 IDispatch_Release(event_target->event_table[i]->handler_prop);
1069             for(j=0; j < event_target->event_table[i]->handler_cnt; j++)
1070                 IDispatch_Release(event_target->event_table[i]->handlers[j]);
1071         }
1072     }
1073
1074     heap_free(event_target);
1075 }