dlls/mshtml/htmlscript.c

/*
 * Copyright 2008 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>

#define COBJMACROS

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

#include "wine/debug.h"

#include "mshtml_private.h"
#include "htmlevent.h"
#include "htmlscript.h"

WINE_DEFAULT_DEBUG_CHANNEL(mshtml);

static inline HTMLScriptElement *impl_from_IHTMLScriptElement(IHTMLScriptElement *iface)
{
    return CONTAINING_RECORD(iface, HTMLScriptElement, IHTMLScriptElement_iface);
}

DISPEX_IDISPATCH_IMPL(HTMLScriptElement, IHTMLScriptElement,
                      impl_from_IHTMLScriptElement(iface)->element.node.event_target.dispex)

static HRESULT WINAPI HTMLScriptElement_put_src(IHTMLScriptElement *iface, BSTR v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    nsAString src_str;
    nsresult nsres;
    HRESULT hres;

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

    nsAString_InitDepend(&src_str, v);
    nsres = nsIDOMHTMLScriptElement_SetSrc(This->nsscript, &src_str);
    nsAString_Finish(&src_str);
    if(NS_FAILED(nsres)) {
        ERR("SetSrc failed: %08lx\n", nsres);
        return E_FAIL;
    }

    if(This->parsed) {
        WARN("already parsed\n");
        return S_OK;
    }

    if(This->binding) {
        FIXME("binding in progress\n");
        return E_FAIL;
    }

    nsAString_Init(&src_str, NULL);
    nsres = nsIDOMHTMLScriptElement_GetSrc(This->nsscript, &src_str);
    if(NS_SUCCEEDED(nsres)) {
        const PRUnichar *src;
        nsAString_GetData(&src_str, &src);
        hres = load_script(This, src, TRUE);
    }else {
        ERR("SetSrc failed: %08lx\n", nsres);
        hres = E_FAIL;
    }
    nsAString_Finish(&src_str);
    return hres;
}

static HRESULT WINAPI HTMLScriptElement_get_src(IHTMLScriptElement *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    nsAString src_str;
    nsresult nsres;

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

    nsAString_Init(&src_str, NULL);
    nsres = nsIDOMHTMLScriptElement_GetSrc(This->nsscript, &src_str);
    return return_nsstr(nsres, &src_str, p);
}

static HRESULT WINAPI HTMLScriptElement_put_htmlFor(IHTMLScriptElement *iface, BSTR v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLScriptElement_get_htmlFor(IHTMLScriptElement *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    nsAString html_str;
    nsresult nsres;

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

    nsAString_Init(&html_str, NULL);
    nsres = nsIDOMHTMLScriptElement_GetHtmlFor(This->nsscript, &html_str);
    return return_nsstr(nsres, &html_str, p);
}

static HRESULT WINAPI HTMLScriptElement_put_event(IHTMLScriptElement *iface, BSTR v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    FIXME("(%p)->(%s)\n", This, debugstr_w(v));
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLScriptElement_get_event(IHTMLScriptElement *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    FIXME("(%p)->(%p)\n", This, p);
    return E_NOTIMPL;
}

static HRESULT WINAPI HTMLScriptElement_put_text(IHTMLScriptElement *iface, BSTR v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    HTMLInnerWindow *window;
    nsIDOMNode *parent;
    nsAString text_str;
    nsresult nsres;

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

    if(!This->element.node.doc || !This->element.node.doc->window) {
        WARN("no window\n");
        return E_UNEXPECTED;
    }

    window = This->element.node.doc->window;

    nsAString_InitDepend(&text_str, v);
    nsres = nsIDOMHTMLScriptElement_SetText(This->nsscript, &text_str);
    nsAString_Finish(&text_str);
    if(NS_FAILED(nsres)) {
        ERR("SetSrc failed: %08lx\n", nsres);
        return E_FAIL;
    }

    nsres = nsIDOMElement_GetParentNode(This->element.dom_element, &parent);
    if(NS_FAILED(nsres) || !parent) {
        TRACE("No parent, not executing\n");
        This->parse_on_bind = TRUE;
        return S_OK;
    }

    nsIDOMNode_Release(parent);
    doc_insert_script(window, This, FALSE);
    return S_OK;
}

static HRESULT WINAPI HTMLScriptElement_get_text(IHTMLScriptElement *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    nsAString nsstr;
    nsresult nsres;

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

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

static HRESULT WINAPI HTMLScriptElement_put_defer(IHTMLScriptElement *iface, VARIANT_BOOL v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    HRESULT hr = S_OK;
    nsresult nsres;

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

    nsres = nsIDOMHTMLScriptElement_SetDefer(This->nsscript, v != VARIANT_FALSE);
    if(NS_FAILED(nsres))
    {
        hr = E_FAIL;
    }

    return hr;
}

static HRESULT WINAPI HTMLScriptElement_get_defer(IHTMLScriptElement *iface, VARIANT_BOOL *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    cpp_bool defer = FALSE;
    nsresult nsres;

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

    if(!p)
        return E_INVALIDARG;

    nsres = nsIDOMHTMLScriptElement_GetDefer(This->nsscript, &defer);
    if(NS_FAILED(nsres)) {
        ERR("GetSrc failed: %08lx\n", nsres);
    }

    *p = variant_bool(defer);
    return S_OK;
}

static HRESULT WINAPI HTMLScriptElement_get_readyState(IHTMLScriptElement *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);

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

    return get_readystate_string(This->readystate, p);
}

static HRESULT WINAPI HTMLScriptElement_put_onerror(IHTMLScriptElement *iface, VARIANT v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);

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

    return set_node_event(&This->element.node, EVENTID_ERROR, &v);
}

static HRESULT WINAPI HTMLScriptElement_get_onerror(IHTMLScriptElement *iface, VARIANT *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);

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

    return get_node_event(&This->element.node, EVENTID_ERROR, p);
}

static HRESULT WINAPI HTMLScriptElement_put_type(IHTMLScriptElement *iface, BSTR v)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    nsAString nstype_str;
    nsresult nsres;

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

    nsAString_Init(&nstype_str, v);
    nsres = nsIDOMHTMLScriptElement_SetType(This->nsscript, &nstype_str);
    if (NS_FAILED(nsres))
        ERR("SetType failed: %08lx\n", nsres);
    nsAString_Finish (&nstype_str);

    return S_OK;
}

static HRESULT WINAPI HTMLScriptElement_get_type(IHTMLScriptElement *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_IHTMLScriptElement(iface);
    nsAString nstype_str;
    nsresult nsres;

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

    nsAString_Init(&nstype_str, NULL);
    nsres = nsIDOMHTMLScriptElement_GetType(This->nsscript, &nstype_str);
    return return_nsstr(nsres, &nstype_str, p);
}

static const IHTMLScriptElementVtbl HTMLScriptElementVtbl = {
    HTMLScriptElement_QueryInterface,
    HTMLScriptElement_AddRef,
    HTMLScriptElement_Release,
    HTMLScriptElement_GetTypeInfoCount,
    HTMLScriptElement_GetTypeInfo,
    HTMLScriptElement_GetIDsOfNames,
    HTMLScriptElement_Invoke,
    HTMLScriptElement_put_src,
    HTMLScriptElement_get_src,
    HTMLScriptElement_put_htmlFor,
    HTMLScriptElement_get_htmlFor,
    HTMLScriptElement_put_event,
    HTMLScriptElement_get_event,
    HTMLScriptElement_put_text,
    HTMLScriptElement_get_text,
    HTMLScriptElement_put_defer,
    HTMLScriptElement_get_defer,
    HTMLScriptElement_get_readyState,
    HTMLScriptElement_put_onerror,
    HTMLScriptElement_get_onerror,
    HTMLScriptElement_put_type,
    HTMLScriptElement_get_type
};

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

static HRESULT HTMLScriptElement_get_readystate(HTMLDOMNode *iface, BSTR *p)
{
    HTMLScriptElement *This = impl_from_HTMLDOMNode(iface);

    return IHTMLScriptElement_get_readyState(&This->IHTMLScriptElement_iface, p);
}

static HRESULT HTMLScriptElement_bind_to_tree(HTMLDOMNode *iface)
{
    HTMLScriptElement *This = impl_from_HTMLDOMNode(iface);

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

    if(!This->parse_on_bind)
        return S_OK;

    if(!This->element.node.doc || !This->element.node.doc->window) {
        ERR("No window\n");
        return E_UNEXPECTED;
    }

    This->parse_on_bind = FALSE;
    doc_insert_script(This->element.node.doc->window, This, FALSE);
    return S_OK;
}

static inline HTMLScriptElement *impl_from_DispatchEx(DispatchEx *iface)
{
    return CONTAINING_RECORD(iface, HTMLScriptElement, element.node.event_target.dispex);
}

static void *HTMLScriptElement_query_interface(DispatchEx *dispex, REFIID riid)
{
    HTMLScriptElement *This = impl_from_DispatchEx(dispex);

    if(IsEqualGUID(&IID_IHTMLScriptElement, riid))
        return &This->IHTMLScriptElement_iface;

    return HTMLElement_query_interface(&This->element.node.event_target.dispex, riid);
}

static void HTMLScriptElement_traverse(DispatchEx *dispex, nsCycleCollectionTraversalCallback *cb)
{
    HTMLScriptElement *This = impl_from_DispatchEx(dispex);
    HTMLElement_traverse(dispex, cb);

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

static void HTMLScriptElement_unlink(DispatchEx *dispex)
{
    HTMLScriptElement *This = impl_from_DispatchEx(dispex);
    HTMLElement_unlink(dispex);
    unlink_ref(&This->nsscript);
}

static void HTMLScriptElement_destructor(DispatchEx *dispex)
{
    HTMLScriptElement *This = impl_from_DispatchEx(dispex);
    free(This->src_text);
    HTMLElement_destructor(&This->element.node.event_target.dispex);
}

static const NodeImplVtbl HTMLScriptElementImplVtbl = {
    .clsid                 = &CLSID_HTMLScriptElement,
    .cpc_entries           = HTMLElement_cpc,
    .clone                 = HTMLElement_clone,
    .get_attr_col          = HTMLElement_get_attr_col,
    .get_readystate        = HTMLScriptElement_get_readystate,
    .bind_to_tree          = HTMLScriptElement_bind_to_tree,
};

static void HTMLScriptElement_init_dispex_info(dispex_data_t *info, compat_mode_t mode)
{
    static const dispex_hook_t hooks[] = {
        {DISPID_IHTMLSCRIPTELEMENT_HTMLFOR,    .noattr = TRUE},
        {DISPID_IHTMLSCRIPTELEMENT_TEXT,       .noattr = TRUE},
        {DISPID_IHTMLSCRIPTELEMENT_READYSTATE, .noattr = TRUE},
        {DISPID_UNKNOWN}
    };
    dispex_info_add_interface(info, IHTMLScriptElement_tid, hooks);

    HTMLElement_init_dispex_info(info, mode);
}

static const event_target_vtbl_t HTMLScriptElement_event_target_vtbl = {
    {
        HTMLELEMENT_DISPEX_VTBL_ENTRIES,
        .query_interface= HTMLScriptElement_query_interface,
        .destructor     = HTMLScriptElement_destructor,
        .traverse       = HTMLScriptElement_traverse,
        .unlink         = HTMLScriptElement_unlink
    },
    HTMLELEMENT_EVENT_TARGET_VTBL_ENTRIES,
    .handle_event       = HTMLElement_handle_event
};

HRESULT script_elem_from_nsscript(nsIDOMHTMLScriptElement *nsscript, HTMLScriptElement **ret)
{
    nsIDOMNode *nsnode;
    HTMLDOMNode *node;
    nsresult nsres;
    HRESULT hres;

    nsres = nsIDOMHTMLScriptElement_QueryInterface(nsscript, &IID_nsIDOMNode, (void**)&nsnode);
    assert(nsres == NS_OK);

    hres = get_node(nsnode, TRUE, &node);
    nsIDOMNode_Release(nsnode);
    if(FAILED(hres))
        return hres;

    assert(node->vtbl == &HTMLScriptElementImplVtbl);
    *ret = impl_from_HTMLDOMNode(node);
    return S_OK;
}

dispex_static_data_t HTMLScriptElement_dispex = {
    .id           = OBJID_HTMLScriptElement,
    .prototype_id = OBJID_HTMLElement,
    .vtbl         = &HTMLScriptElement_event_target_vtbl.dispex_vtbl,
    .disp_tid     = DispHTMLScriptElement_tid,
    .init_info    = HTMLScriptElement_init_dispex_info,
};

HRESULT HTMLScriptElement_Create(HTMLDocumentNode *doc, nsIDOMElement *nselem, HTMLElement **elem)
{
    HTMLScriptElement *ret;
    nsresult nsres;

    ret = calloc(1, sizeof(HTMLScriptElement));
    if(!ret)
        return E_OUTOFMEMORY;

    ret->IHTMLScriptElement_iface.lpVtbl = &HTMLScriptElementVtbl;
    ret->element.node.vtbl = &HTMLScriptElementImplVtbl;

    HTMLElement_Init(&ret->element, doc, nselem, &HTMLScriptElement_dispex);

    nsres = nsIDOMElement_QueryInterface(nselem, &IID_nsIDOMHTMLScriptElement, (void**)&ret->nsscript);
    assert(nsres == NS_OK);

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