mshtml: Store nsIDOMCSSStyleDeclaration in HTMLCurrentStyle.

dlls/mshtml/htmlcurstyle.c

@@ -37,6 +37,8 @@ typedef struct {
     const IHTMLCurrentStyleVtbl *lpIHTMLCurrentStyleVtbl;
 
     LONG ref;
+
+    nsIDOMCSSStyleDeclaration *nsstyle;
 } HTMLCurrentStyle;
 
 #define HTMLCURSTYLE(x)  ((IHTMLCurrentStyle*)  &(x)->lpIHTMLCurrentStyleVtbl)
@@ -85,8 +87,11 @@ static ULONG WINAPI HTMLCurrentStyle_Release(IHTMLCurrentStyle *iface)
 
     TRACE("(%p) ref=%d\n", This, ref);
 
-    if(!ref)
+    if(!ref) {
+        if(This->nsstyle)
+            nsIDOMCSSStyleDeclaration_Release(This->nsstyle);
         heap_free(This);
+    }
 
     return ref;
 }
@@ -875,16 +880,62 @@ static dispex_static_data_t HTMLCurrentStyle_dispex = {
     HTMLCurrentStyle_iface_tids
 };
 
-HRESULT HTMLCurrentStyle_Create(IHTMLCurrentStyle **p)
+HRESULT HTMLCurrentStyle_Create(HTMLElement *elem, IHTMLCurrentStyle **p)
 {
+    nsIDOMCSSStyleDeclaration *nsstyle;
+    nsIDOMDocumentView *nsdocview;
+    nsIDOMAbstractView *nsview;
+    nsIDOMViewCSS *nsviewcss;
+    nsIDOMDocument *nsdoc;
+    nsAString nsempty_str;
     HTMLCurrentStyle *ret;
+    nsresult nsres;
+
+    nsres = nsIWebNavigation_GetDocument(elem->node.doc->nscontainer->navigation, &nsdoc);
+    if(NS_FAILED(nsres)) {
+        ERR("GetDocument failed: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    nsres = nsIDOMDocument_QueryInterface(nsdoc, &IID_nsIDOMDocumentView, (void**)&nsdocview);
+    nsIDOMDocument_Release(nsdoc);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIDOMDocumentView: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    nsres = nsIDOMDocumentView_GetDefaultView(nsdocview, &nsview);
+    nsIDOMDocumentView_Release(nsdocview);
+    if(NS_FAILED(nsres)) {
+        ERR("GetDefaultView failed: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    nsres = nsIDOMAbstractView_QueryInterface(nsview, &IID_nsIDOMViewCSS, (void**)&nsviewcss);
+    nsIDOMAbstractView_Release(nsview);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIDOMViewCSS: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    nsAString_Init(&nsempty_str, NULL);
+    nsres = nsIDOMViewCSS_GetComputedStyle(nsviewcss, (nsIDOMElement*)elem->nselem, &nsempty_str, &nsstyle);
+    nsIDOMViewCSS_Release(nsviewcss);
+    nsAString_Finish(&nsempty_str);
+    if(NS_FAILED(nsres)) {
+        ERR("GetComputedStyle failed: %08x\n", nsres);
+        return E_FAIL;
+    }
 
     ret = heap_alloc_zero(sizeof(HTMLCurrentStyle));
-    if(!ret)
+    if(!ret) {
+        nsIDOMCSSStyleDeclaration_Release(nsstyle);
         return E_OUTOFMEMORY;
+    }
 
     ret->lpIHTMLCurrentStyleVtbl = &HTMLCurrentStyleVtbl;
     ret->ref = 1;
+    ret->nsstyle = nsstyle;
 
     init_dispex(&ret->dispex, (IUnknown*)HTMLCURSTYLE(ret),  &HTMLCurrentStyle_dispex);
 

dlls/mshtml/htmlelem2.c

@@ -321,7 +321,7 @@ static HRESULT WINAPI HTMLElement2_get_currentStyle(IHTMLElement2 *iface, IHTMLC
 
     TRACE("(%p)->(%p)\n", This, p);
 
-    return HTMLCurrentStyle_Create(p);
+    return HTMLCurrentStyle_Create(This, p);
 }
 
 static HRESULT WINAPI HTMLElement2_put_onpropertychange(IHTMLElement2 *iface, VARIANT v)

dlls/mshtml/mshtml_private.h

@@ -474,7 +474,7 @@ void HTMLDocument_Window_Init(HTMLDocument*);
 void HTMLDocument_Service_Init(HTMLDocument*);
 void HTMLDocument_Hlink_Init(HTMLDocument*);
 
-HRESULT HTMLCurrentStyle_Create(IHTMLCurrentStyle**);
+HRESULT HTMLCurrentStyle_Create(HTMLElement*,IHTMLCurrentStyle**);
 
 void ConnectionPoint_Init(ConnectionPoint*,ConnectionPointContainer*,REFIID);
 void ConnectionPointContainer_Init(ConnectionPointContainer*,IUnknown*);

dlls/mshtml/nsiface.idl

@@ -82,6 +82,7 @@ interface nsIEditorObserver;
 interface nsIEditActionListener;
 interface nsIDocumentStateListener;
 interface nsIDOMCSSStyleSheet;
+interface nsIDOMDocumentView;
 
 interface IMoniker;
 
@@ -100,7 +101,6 @@ interface nsISupports
 /* Currently we don't need a full declaration of these interfaces */
 typedef nsISupports nsISHistory;
 typedef nsISupports nsIWidget;
-typedef nsISupports nsIDOMAbstractView;
 typedef nsISupports nsIHttpHeaderVisitor;
 typedef nsISupports nsIDOMBarProp;
 typedef nsISupports nsIDOMWindowCollection;
@@ -887,6 +887,28 @@ interface nsIDOMDocumentFragment : nsIDOMNode
 
 [
     object,
+    uuid(f51ebade-8b1a-11d3-aae7-0010830123b4),
+    local
+    /* FROZEN */
+]
+interface nsIDOMAbstractView : nsISupports
+{
+    nsresult GetDocument(nsIDOMDocumentView **aDocument);
+}
+
+[
+    object,
+    uuid(0b9341f3-95d4-4fa4-adcd-e119e0db2889),
+    local
+    /* NOT_FROZEN */
+]
+interface nsIDOMViewCSS : nsIDOMAbstractView
+{
+    nsresult GetComputedStyle(nsIDOMElement *elt, const nsAString *pseudoElt, nsIDOMCSSStyleDeclaration **_retval);
+}
+
+[
+    object,
     uuid(a6cf9075-15b3-11d2-932e-00805f8add32),
     local
     /* FROZEN */
@@ -1003,6 +1025,17 @@ interface nsIDOMDocumentStyle : nsISupports
 
 [
     object,
+    uuid(1acdb2ba-1dd2-11b2-95bc-9542495d2569),
+    local
+    /* FROZEN */
+]
+interface nsIDOMDocumentView : nsISupports
+{
+    nsresult GetDefaultView(nsIDOMAbstractView **aDefaultView);
+}
+
+[
+    object,
     uuid(a6cf90ce-15b3-11d2-932e-00805f8add32),
     local
     /* FROZEN */