From b2c65c296f3664c78eba9665fd731c9f4c3d76ce Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Wed, 1 Oct 2014 11:23:47 +0200
Subject: [PATCH] mshtml: Don't assume that nsIDOMHTML*Element interfaces
 inherit from nsIDOMHTMLElement in htmlscript.c.

---
 dlls/mshtml/htmlscript.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/dlls/mshtml/htmlscript.c b/dlls/mshtml/htmlscript.c
index dcab32fb7f9..1a613989131 100644
--- a/dlls/mshtml/htmlscript.c
+++ b/dlls/mshtml/htmlscript.c
@@ -136,7 +136,7 @@ static HRESULT WINAPI HTMLScriptElement_put_src(IHTMLScriptElement *iface, BSTR
         return S_OK;
     }
 
-    nsres = nsIDOMHTMLScriptElement_GetParentNode(This->nsscript, &parent);
+    nsres = nsIDOMHTMLElement_GetParentNode(This->element.nselem, &parent);
     if(NS_FAILED(nsres) || !parent) {
         TRACE("No parent, not executing\n");
         This->parse_on_bind = TRUE;
@@ -214,7 +214,7 @@ static HRESULT WINAPI HTMLScriptElement_put_text(IHTMLScriptElement *iface, BSTR
         return E_FAIL;
     }
 
-    nsres = nsIDOMHTMLScriptElement_GetParentNode(This->nsscript, &parent);
+    nsres = nsIDOMHTMLElement_GetParentNode(This->element.nselem, &parent);
     if(NS_FAILED(nsres) || !parent) {
         TRACE("No parent, not executing\n");
         This->parse_on_bind = TRUE;
@@ -433,10 +433,16 @@ static const NodeImplVtbl HTMLScriptElementImplVtbl = {
 
 HRESULT script_elem_from_nsscript(HTMLDocumentNode *doc, nsIDOMHTMLScriptElement *nsscript, HTMLScriptElement **ret)
 {
+    nsIDOMNode *nsnode;
     HTMLDOMNode *node;
+    nsresult nsres;
     HRESULT hres;
 
-    hres = get_node(doc, (nsIDOMNode*)nsscript, TRUE, &node);
+    nsres = nsIDOMHTMLScriptElement_QueryInterface(nsscript, &IID_nsIDOMNode, (void**)&nsnode);
+    assert(nsres == NS_OK);
+
+    hres = get_node(doc, nsnode, TRUE, &node);
+    nsIDOMNode_Release(nsnode);
     if(FAILED(hres))
         return hres;