/*
 * Copyright 2010 Jacek Caban for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>
#include <assert.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winreg.h"
#include "ole2.h"

#include "wine/debug.h"

#include "mshtml_private.h"
#include "pluginhost.h"

WINE_DEFAULT_DEBUG_CHANNEL(mshtml);

typedef struct {
    HTMLPluginContainer plugin_container;

    IHTMLObjectElement IHTMLObjectElement_iface;
    IHTMLObjectElement2 IHTMLObjectElement2_iface;

    nsIDOMHTMLObjectElement *nsobject;
} HTMLObjectElement;

static inline HTMLObjectElement *impl_from_IHTMLObjectElement(IHTMLObjectElement *iface)
{
    return CONTAINING_RECORD(iface, HTMLObjectElement, IHTMLObjectElement_iface);
}

static HRESULT WINAPI HTMLObjectElement_QueryInterface(IHTMLObjectElement *iface,
        REFIID riid, void **ppv)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);

    return IHTMLDOMNode_QueryInterface(&This->plugin_container.element.node.IHTMLDOMNode_iface,
            riid, ppv);
}

static ULONG WINAPI HTMLObjectElement_AddRef(IHTMLObjectElement *iface)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);

    return IHTMLDOMNode_AddRef(&This->plugin_container.element.node.IHTMLDOMNode_iface);
}

static ULONG WINAPI HTMLObjectElement_Release(IHTMLObjectElement *iface)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);

    return IHTMLDOMNode_Release(&This->plugin_container.element.node.IHTMLDOMNode_iface);
}

static HRESULT WINAPI HTMLObjectElement_GetTypeInfoCount(IHTMLObjectElement *iface, UINT *pctinfo)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    return IDispatchEx_GetTypeInfoCount(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            pctinfo);
}

static HRESULT WINAPI HTMLObjectElement_GetTypeInfo(IHTMLObjectElement *iface, UINT iTInfo,
                                              LCID lcid, ITypeInfo **ppTInfo)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    return IDispatchEx_GetTypeInfo(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            iTInfo, lcid, ppTInfo);
}

static HRESULT WINAPI HTMLObjectElement_GetIDsOfNames(IHTMLObjectElement *iface, REFIID riid,
                                                LPOLESTR *rgszNames, UINT cNames,
                                                LCID lcid, DISPID *rgDispId)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    return IDispatchEx_GetIDsOfNames(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            riid, rgszNames, cNames, lcid, rgDispId);
}

static HRESULT WINAPI HTMLObjectElement_Invoke(IHTMLObjectElement *iface, DISPID dispIdMember,
                            REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
                            VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    return IDispatchEx_Invoke(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
}

static HRESULT WINAPI HTMLObjectElement_get_object(IHTMLObjectElement *iface, IDispatch **p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);

    TRACE("(%p)->(%p)\n", This, p);

    return get_plugin_disp(&This->plugin_container, p);
}

static HRESULT WINAPI HTMLObjectElement_get_classid(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);

    TRACE("(%p)->(%p)\n", This, p);

    return IHTMLObjectElement2_get_classid(&This->IHTMLObjectElement2_iface, p);
}

static HRESULT WINAPI HTMLObjectElement_get_data(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);

    TRACE("(%p)->(%p)\n", This, p);

    return IHTMLObjectElement2_get_data(&This->IHTMLObjectElement2_iface, p);
}

static HRESULT WINAPI HTMLObjectElement_put_recordset(IHTMLObjectElement *iface, IDispatch *v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, v);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_recordset(IHTMLObjectElement *iface, IDispatch **p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_align(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_align(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_name(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsAString nsstr;
    nsresult nsres;

    TRACE("(%p)->(%s)\n", This, debugstr_w(v));

    nsAString_InitDepend(&nsstr, v);
    nsres = nsIDOMHTMLObjectElement_SetName(This->nsobject, &nsstr);
    nsAString_Finish(&nsstr);
    return NS_SUCCEEDED(nsres) ? S_OK : E_FAIL;
}

static HRESULT WINAPI HTMLObjectElement_get_name(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsAString nsstr;
    nsresult nsres;

    TRACE("(%p)->(%p)\n", This, p);

    nsAString_Init(&nsstr, NULL);
    nsres = nsIDOMHTMLObjectElement_GetName(This->nsobject, &nsstr);
    return return_nsstr(nsres, &nsstr, p);
}

static HRESULT WINAPI HTMLObjectElement_put_codeBase(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_codeBase(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_codeType(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_codeType(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_code(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_code(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_BaseHref(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_type(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_type(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_form(IHTMLObjectElement *iface, IHTMLFormElement **p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_width(IHTMLObjectElement *iface, VARIANT v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsAString width_str;
    PRUnichar buf[12];
    nsresult nsres;

    TRACE("(%p)->(%s)\n", This, debugstr_variant(&v));

    switch(V_VT(&v)) {
    case VT_I4: {
        static const WCHAR formatW[] = {'%','d',0};
        sprintfW(buf, formatW, V_I4(&v));
        break;
    }
    default:
        FIXME("unimplemented for arg %s\n", debugstr_variant(&v));
        return E_NOTIMPL;
    }

    nsAString_InitDepend(&width_str, buf);
    nsres = nsIDOMHTMLObjectElement_SetWidth(This->nsobject, &width_str);
    nsAString_Finish(&width_str);
    if(NS_FAILED(nsres)) {
        FIXME("SetWidth failed: %08x\n", nsres);
        return E_FAIL;
    }

    notif_container_change(&This->plugin_container, DISPID_UNKNOWN);
    return S_OK;
}

static HRESULT WINAPI HTMLObjectElement_get_width(IHTMLObjectElement *iface, VARIANT *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsAString width_str;
    nsresult nsres;
    HRESULT hres;

    TRACE("(%p)->(%p)\n", This, p);

    nsAString_Init(&width_str, NULL);
    nsres = nsIDOMHTMLObjectElement_GetWidth(This->nsobject, &width_str);
    if(NS_SUCCEEDED(nsres)) {
        const PRUnichar *width;

        nsAString_GetData(&width_str, &width);
        V_VT(p) = VT_BSTR;
        V_BSTR(p) = SysAllocString(width);
        hres = V_BSTR(p) ? S_OK : E_OUTOFMEMORY;
    }else {
        ERR("GetWidth failed: %08x\n", nsres);
        hres = E_FAIL;
    }

    nsAString_Finish(&width_str);
    return hres;
}

static HRESULT WINAPI HTMLObjectElement_put_height(IHTMLObjectElement *iface, VARIANT v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsAString height_str;
    PRUnichar buf[12];
    nsresult nsres;

    TRACE("(%p)->(%s)\n", This, debugstr_variant(&v));

    switch(V_VT(&v)) {
    case VT_I4: {
        static const WCHAR formatW[] = {'%','d',0};
        sprintfW(buf, formatW, V_I4(&v));
        break;
    }
    default:
        FIXME("unimplemented for arg %s\n", debugstr_variant(&v));
        return E_NOTIMPL;
    }

    nsAString_InitDepend(&height_str, buf);
    nsres = nsIDOMHTMLObjectElement_SetHeight(This->nsobject, &height_str);
    nsAString_Finish(&height_str);
    if(NS_FAILED(nsres)) {
        FIXME("SetHeight failed: %08x\n", nsres);
        return E_FAIL;
    }

    notif_container_change(&This->plugin_container, DISPID_UNKNOWN);
    return S_OK;
}

static HRESULT WINAPI HTMLObjectElement_get_height(IHTMLObjectElement *iface, VARIANT *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsAString height_str;
    nsresult nsres;
    HRESULT hres;

    TRACE("(%p)->(%p)\n", This, p);

    nsAString_Init(&height_str, NULL);
    nsres = nsIDOMHTMLObjectElement_GetHeight(This->nsobject, &height_str);
    if(NS_SUCCEEDED(nsres)) {
        const PRUnichar *height;

        nsAString_GetData(&height_str, &height);
        V_VT(p) = VT_BSTR;
        V_BSTR(p) = SysAllocString(height);
        hres = V_BSTR(p) ? S_OK : E_OUTOFMEMORY;
    }else {
        ERR("GetHeight failed: %08x\n", nsres);
        hres = E_FAIL;
    }

    nsAString_Finish(&height_str);
    return hres;
}

static HRESULT WINAPI HTMLObjectElement_get_readyState(IHTMLObjectElement *iface, LONG *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_onreadystatechange(IHTMLObjectElement *iface, VARIANT v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_variant(&v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_onreadystatechange(IHTMLObjectElement *iface, VARIANT *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_onerror(IHTMLObjectElement *iface, VARIANT v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_variant(&v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_onerror(IHTMLObjectElement *iface, VARIANT *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_altHtml(IHTMLObjectElement *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_altHtml(IHTMLObjectElement *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_put_vspace(IHTMLObjectElement *iface, LONG v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%d)\n", This, v);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_vspace(IHTMLObjectElement *iface, LONG *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    nsresult nsres;

    TRACE("(%p)->(%p)\n", This, p);

    nsres = nsIDOMHTMLObjectElement_GetVspace(This->nsobject, p);
    if(NS_FAILED(nsres)) {
        ERR("GetVspace failed: %08x\n", nsres);
        return E_FAIL;
    }

    return S_OK;
}

static HRESULT WINAPI HTMLObjectElement_put_hspace(IHTMLObjectElement *iface, LONG v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%d)\n", This, v);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement_get_hspace(IHTMLObjectElement *iface, LONG *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static const IHTMLObjectElementVtbl HTMLObjectElementVtbl = {
    HTMLObjectElement_QueryInterface,
    HTMLObjectElement_AddRef,
    HTMLObjectElement_Release,
    HTMLObjectElement_GetTypeInfoCount,
    HTMLObjectElement_GetTypeInfo,
    HTMLObjectElement_GetIDsOfNames,
    HTMLObjectElement_Invoke,
    HTMLObjectElement_get_object,
    HTMLObjectElement_get_classid,
    HTMLObjectElement_get_data,
    HTMLObjectElement_put_recordset,
    HTMLObjectElement_get_recordset,
    HTMLObjectElement_put_align,
    HTMLObjectElement_get_align,
    HTMLObjectElement_put_name,
    HTMLObjectElement_get_name,
    HTMLObjectElement_put_codeBase,
    HTMLObjectElement_get_codeBase,
    HTMLObjectElement_put_codeType,
    HTMLObjectElement_get_codeType,
    HTMLObjectElement_put_code,
    HTMLObjectElement_get_code,
    HTMLObjectElement_get_BaseHref,
    HTMLObjectElement_put_type,
    HTMLObjectElement_get_type,
    HTMLObjectElement_get_form,
    HTMLObjectElement_put_width,
    HTMLObjectElement_get_width,
    HTMLObjectElement_put_height,
    HTMLObjectElement_get_height,
    HTMLObjectElement_get_readyState,
    HTMLObjectElement_put_onreadystatechange,
    HTMLObjectElement_get_onreadystatechange,
    HTMLObjectElement_put_onerror,
    HTMLObjectElement_get_onerror,
    HTMLObjectElement_put_altHtml,
    HTMLObjectElement_get_altHtml,
    HTMLObjectElement_put_vspace,
    HTMLObjectElement_get_vspace,
    HTMLObjectElement_put_hspace,
    HTMLObjectElement_get_hspace
};

static inline HTMLObjectElement *impl_from_IHTMLObjectElement2(IHTMLObjectElement2 *iface)
{
    return CONTAINING_RECORD(iface, HTMLObjectElement, IHTMLObjectElement2_iface);
}

static HRESULT WINAPI HTMLObjectElement2_QueryInterface(IHTMLObjectElement2 *iface,
        REFIID riid, void **ppv)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);

    return IHTMLDOMNode_QueryInterface(&This->plugin_container.element.node.IHTMLDOMNode_iface,
            riid, ppv);
}

static ULONG WINAPI HTMLObjectElement2_AddRef(IHTMLObjectElement2 *iface)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);

    return IHTMLDOMNode_AddRef(&This->plugin_container.element.node.IHTMLDOMNode_iface);
}

static ULONG WINAPI HTMLObjectElement2_Release(IHTMLObjectElement2 *iface)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);

    return IHTMLDOMNode_Release(&This->plugin_container.element.node.IHTMLDOMNode_iface);
}

static HRESULT WINAPI HTMLObjectElement2_GetTypeInfoCount(IHTMLObjectElement2 *iface, UINT *pctinfo)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    return IDispatchEx_GetTypeInfoCount(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            pctinfo);
}

static HRESULT WINAPI HTMLObjectElement2_GetTypeInfo(IHTMLObjectElement2 *iface, UINT iTInfo,
                                              LCID lcid, ITypeInfo **ppTInfo)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    return IDispatchEx_GetTypeInfo(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            iTInfo, lcid, ppTInfo);
}

static HRESULT WINAPI HTMLObjectElement2_GetIDsOfNames(IHTMLObjectElement2 *iface, REFIID riid,
        LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    return IDispatchEx_GetIDsOfNames(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            riid, rgszNames, cNames, lcid, rgDispId);
}

static HRESULT WINAPI HTMLObjectElement2_Invoke(IHTMLObjectElement2 *iface, DISPID dispIdMember,
        REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult,
        EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    return IDispatchEx_Invoke(&This->plugin_container.element.node.event_target.dispex.IDispatchEx_iface,
            dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
}

static HRESULT WINAPI HTMLObjectElement2_namedRecordset(IHTMLObjectElement2 *iface, BSTR dataMember,
        VARIANT *hierarchy, IDispatch **ppRecordset)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    FIXME("(%p)->(%s %p %p)\n", This, debugstr_w(dataMember), hierarchy, ppRecordset);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement2_put_classid(IHTMLObjectElement2 *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    HRESULT hres;

    static const WCHAR classidW[] = {'c','l','a','s','s','i','d',0};

    FIXME("(%p)->(%s) semi-stub\n", This, debugstr_w(v));

    hres = elem_string_attr_setter(&This->plugin_container.element, classidW, v);
    if(FAILED(hres))
        return hres;

    if(This->plugin_container.plugin_host) {
        FIXME("Host already associated.\n");
        return E_NOTIMPL;
    }

    /*
     * NOTE:
     * If the element is not yet in DOM tree, we should embed it as soon as it's added.
     * However, Gecko for some reason decides not to create NP plugin in this case,
     * so this won't work.
     */

    return create_plugin_host(This->plugin_container.element.node.doc, &This->plugin_container);
}

static HRESULT WINAPI HTMLObjectElement2_get_classid(IHTMLObjectElement2 *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement2_put_data(IHTMLObjectElement2 *iface, BSTR v)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLObjectElement2_get_data(IHTMLObjectElement2 *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_IHTMLObjectElement2(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static const IHTMLObjectElement2Vtbl HTMLObjectElement2Vtbl = {
    HTMLObjectElement2_QueryInterface,
    HTMLObjectElement2_AddRef,
    HTMLObjectElement2_Release,
    HTMLObjectElement2_GetTypeInfoCount,
    HTMLObjectElement2_GetTypeInfo,
    HTMLObjectElement2_GetIDsOfNames,
    HTMLObjectElement2_Invoke,
    HTMLObjectElement2_namedRecordset,
    HTMLObjectElement2_put_classid,
    HTMLObjectElement2_get_classid,
    HTMLObjectElement2_put_data,
    HTMLObjectElement2_get_data
};

static inline HTMLObjectElement *impl_from_HTMLDOMNode(HTMLDOMNode *iface)
{
    return CONTAINING_RECORD(iface, HTMLObjectElement, plugin_container.element.node);
}

static HRESULT HTMLObjectElement_QI(HTMLDOMNode *iface, REFIID riid, void **ppv)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);

    TRACE("(%p)->(%s %p)\n", This, debugstr_mshtml_guid(riid), ppv);

    if(IsEqualGUID(&IID_IUnknown, riid)) {
        *ppv = &This->IHTMLObjectElement_iface;
    }else if(IsEqualGUID(&IID_IDispatch, riid)) {
        *ppv = &This->IHTMLObjectElement_iface;
    }else if(IsEqualGUID(&IID_IHTMLObjectElement, riid)) {
        *ppv = &This->IHTMLObjectElement_iface;
    }else if(IsEqualGUID(&IID_IHTMLObjectElement2, riid)) {
        *ppv = &This->IHTMLObjectElement2_iface;
    }else if(IsEqualGUID(&IID_HTMLPluginContainer, riid)) {
        /* Special pseudo-interface returning HTMLPluginContainse struct. */
        *ppv = &This->plugin_container;
        node_addref(&This->plugin_container.element.node);
        return S_OK;
    }else {
        HRESULT hres;

        hres = HTMLElement_QI(&This->plugin_container.element.node, riid, ppv);
        if(hres == E_NOINTERFACE && This->plugin_container.plugin_host && This->plugin_container.plugin_host->plugin_unk) {
            IUnknown *plugin_iface, *ret;

            hres = IUnknown_QueryInterface(This->plugin_container.plugin_host->plugin_unk, riid, (void**)&plugin_iface);
            if(hres == S_OK) {
                hres = wrap_iface(plugin_iface, (IUnknown*)&This->IHTMLObjectElement_iface, &ret);
                IUnknown_Release(plugin_iface);
                if(FAILED(hres))
                    return hres;

                TRACE("returning plugin iface %p wrapped to %p\n", plugin_iface, ret);
                *ppv = ret;
                return S_OK;
            }
        }

        return hres;
    }

    IUnknown_AddRef((IUnknown*)*ppv);
    return S_OK;
}

static void HTMLObjectElement_destructor(HTMLDOMNode *iface)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);

    if(This->plugin_container.plugin_host)
        detach_plugin_host(This->plugin_container.plugin_host);

    HTMLElement_destructor(&This->plugin_container.element.node);
}

static HRESULT HTMLObjectElement_get_readystate(HTMLDOMNode *iface, BSTR *p)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT HTMLObjectElement_get_dispid(HTMLDOMNode *iface, BSTR name,
        DWORD grfdex, DISPID *pid)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);

    TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(name), grfdex, pid);

    return get_plugin_dispid(&This->plugin_container, name, pid);
}

static HRESULT HTMLObjectElement_invoke(HTMLDOMNode *iface, DISPID id, LCID lcid,
        WORD flags, DISPPARAMS *params, VARIANT *res, EXCEPINFO *ei, IServiceProvider *caller)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);

    TRACE("(%p)->(%d)\n", This, id);

    return invoke_plugin_prop(&This->plugin_container, id, lcid, flags, params, res, ei);
}

static void HTMLObjectElement_traverse(HTMLDOMNode *iface, nsCycleCollectionTraversalCallback *cb)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);

    if(This->nsobject)
        note_cc_edge((nsISupports*)This->nsobject, "This->nsobject", cb);
}

static void HTMLObjectElement_unlink(HTMLDOMNode *iface)
{
    HTMLObjectElement *This = impl_from_HTMLDOMNode(iface);

    if(This->nsobject) {
        nsIDOMHTMLObjectElement *nsobject = This->nsobject;

        This->nsobject = NULL;
        nsIDOMHTMLObjectElement_Release(nsobject);
    }
}

static const NodeImplVtbl HTMLObjectElementImplVtbl = {
    HTMLObjectElement_QI,
    HTMLObjectElement_destructor,
    HTMLElement_cpc,
    HTMLElement_clone,
    HTMLElement_handle_event,
    HTMLElement_get_attr_col,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    HTMLObjectElement_get_readystate,
    HTMLObjectElement_get_dispid,
    HTMLObjectElement_invoke,
    NULL,
    HTMLObjectElement_traverse,
    HTMLObjectElement_unlink
};

static const tid_t HTMLObjectElement_iface_tids[] = {
    IHTMLObjectElement2_tid,
    IHTMLObjectElement_tid,
    HTMLELEMENT_TIDS,
    0
};
static dispex_static_data_t HTMLObjectElement_dispex = {
    NULL,
    DispHTMLObjectElement_tid,
    HTMLObjectElement_iface_tids,
    HTMLElement_init_dispex_info
};

HRESULT HTMLObjectElement_Create(HTMLDocumentNode *doc, nsIDOMHTMLElement *nselem, HTMLElement **elem)
{
    HTMLObjectElement *ret;
    nsresult nsres;

    ret = heap_alloc_zero(sizeof(*ret));
    if(!ret)
        return E_OUTOFMEMORY;

    ret->IHTMLObjectElement_iface.lpVtbl = &HTMLObjectElementVtbl;
    ret->IHTMLObjectElement2_iface.lpVtbl = &HTMLObjectElement2Vtbl;
    ret->plugin_container.element.node.vtbl = &HTMLObjectElementImplVtbl;

    HTMLElement_Init(&ret->plugin_container.element, doc, nselem, &HTMLObjectElement_dispex);

    nsres = nsIDOMHTMLElement_QueryInterface(nselem, &IID_nsIDOMHTMLObjectElement, (void**)&ret->nsobject);
    assert(nsres == NS_OK);

    *elem = &ret->plugin_container.element;
    return S_OK;
}