[PATCH 2/5] mshtml: Add support for unknown element prototype objects.

[Jacek Caban]

From: Jacek Caban

Based on patch by Gabriel Ivăncescu.
---
 dlls/mshtml/htmlelem.c            |  6 +++---
 dlls/mshtml/htmlgeneric.c         | 17 +++++++++--------
 dlls/mshtml/mshtml_private.h      |  1 +
 dlls/mshtml/tests/documentmode.js |  2 ++
 4 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/dlls/mshtml/htmlelem.c b/dlls/mshtml/htmlelem.c
index e9ecfc77a65..0cc41bf41a3 100644
--- a/dlls/mshtml/htmlelem.c
+++ b/dlls/mshtml/htmlelem.c
@@ -7250,7 +7250,7 @@ dispex_static_data_t HTMLElement_dispex = {
     .init_info    = HTMLElement_init_dispex_info,
 };

-static dispex_static_data_t HTMLUnknownElement_dispex = {
+static dispex_static_data_t LegacyUnknownElement_dispex = {
     "HTMLUnknownElement",
     &HTMLElement_event_target_vtbl.dispex_vtbl,
     DispHTMLUnknownElement_tid,
@@ -7325,13 +7325,13 @@ HRESULT HTMLElement_Create(HTMLDocumentNode *doc, nsIDOMNode *nsnode, BOOL use_g
         if(NS_SUCCEEDED(nsres)) {
             hres = create_svg_element(doc, svg_element, tag_name, &elem);
             nsIDOMSVGElement_Release(svg_element);
-        }else if(use_generic) {
+        }else if(use_generic || dispex_compat_mode(&doc->node.event_target.dispex) >= COMPAT_MODE_IE9) {
             hres = HTMLGenericElement_Create(doc, nselem, &elem);
         }else {
             elem = calloc(1, sizeof(HTMLElement));
             if(elem) {
                 elem->node.vtbl = &HTMLElementImplVtbl;
-                HTMLElement_Init(elem, doc, nselem, &HTMLUnknownElement_dispex);
+                HTMLElement_Init(elem, doc, nselem, &LegacyUnknownElement_dispex);
                 hres = S_OK;
             }else {
                 hres = E_OUTOFMEMORY;
diff --git a/dlls/mshtml/htmlgeneric.c b/dlls/mshtml/htmlgeneric.c
index 88237fac403..acd4998832b 100644
--- a/dlls/mshtml/htmlgeneric.c
+++ b/dlls/mshtml/htmlgeneric.c
@@ -108,18 +108,19 @@ static const event_target_vtbl_t HTMLGenericElement_event_target_vtbl = {
     .handle_event       = HTMLElement_handle_event
 };

-static const tid_t HTMLGenericElement_iface_tids[] = {
+static const tid_t HTMLUnknownElement_iface_tids[] = {
     HTMLELEMENT_TIDS,
     IHTMLGenericElement_tid,
     0
 };

-static dispex_static_data_t HTMLGenericElement_dispex = {
-    "HTMLUnknownElement",
-    &HTMLGenericElement_event_target_vtbl.dispex_vtbl,
-    DispHTMLGenericElement_tid,
-    HTMLGenericElement_iface_tids,
-    HTMLElement_init_dispex_info
+dispex_static_data_t HTMLUnknownElement_dispex = {
+    .id           = PROT_HTMLUnknownElement,
+    .prototype_id = PROT_HTMLElement,
+    .vtbl         = &HTMLGenericElement_event_target_vtbl.dispex_vtbl,
+    .disp_tid     = DispHTMLGenericElement_tid,
+    .iface_tids   = HTMLUnknownElement_iface_tids,
+    .init_info    = HTMLElement_init_dispex_info,
 };

HRESULT HTMLGenericElement_Create(HTMLDocumentNode *doc, nsIDOMElement *nselem, HTMLElement **elem)
@@ -133,7 +134,7 @@ HRESULT HTMLGenericElement_Create(HTMLDocumentNode *doc, nsIDOMElement *nselem,
     ret->IHTMLGenericElement_iface.lpVtbl = &HTMLGenericElementVtbl;
     ret->element.node.vtbl = &HTMLGenericElementImplVtbl;

-    HTMLElement_Init(&ret->element, doc, nselem, &HTMLGenericElement_dispex);
+    HTMLElement_Init(&ret->element, doc, nselem, &HTMLUnknownElement_dispex);

*elem = &ret->element;
     return S_OK;
diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h
index 0220285ac8e..ff9335be2fe 100644
--- a/dlls/mshtml/mshtml_private.h
+++ b/dlls/mshtml/mshtml_private.h
@@ -451,6 +451,7 @@ typedef struct {
     X(HTMLTableRowElement)                 \
     X(HTMLTextAreaElement)                 \
     X(HTMLTitleElement)                    \
+    X(HTMLUnknownElement)                  \
     X(History)                             \
     X(KeyboardEvent)                       \
     X(MSCSSProperties)                     \
diff --git a/dlls/mshtml/tests/documentmode.js b/dlls/mshtml/tests/documentmode.js
index c0c671dfdfa..459ac523239 100644
--- a/dlls/mshtml/tests/documentmode.js
+++ b/dlls/mshtml/tests/documentmode.js
@@ -3201,6 +3201,8 @@ sync_test("prototypes", function() {
     check(HTMLTableCellElement.prototype, HTMLElement.prototype, "table cell prototype");
     check(document.createElement("textarea"), HTMLTextAreaElement.prototype, "textarea element");
     check(HTMLTextAreaElement.prototype, HTMLElement.prototype, "textarea element prototype");
+    check(document.createElement("test"), HTMLUnknownElement.prototype, "unknown element");
+    check(HTMLUnknownElement.prototype, HTMLElement.prototype, "unknown element prototype");
     check(document.createElementNS(svg_ns, "svg"), SVGSVGElement.prototype, "svg:svg element");
     check(SVGSVGElement.prototype, SVGElement.prototype, "svg:svg element prototype");
     check(SVGElement.prototype, Element.prototype, "svg element prototype");