mshtml: Added IHTMLRect::get_top implementation.

dlls/mshtml/htmlelem2.c

@@ -17,6 +17,7 @@
  */
 
 #include <stdarg.h>
+#include <math.h>
 
 #define COBJMACROS
 
@@ -36,7 +37,10 @@ WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
 typedef struct {
     DispatchEx dispex;
     const IHTMLRectVtbl *lpIHTMLRectVtbl;
+
     LONG ref;
+
+    nsIDOMClientRect *nsrect;
 } HTMLRect;
 
 #define HTMLRECT(x)  ((IHTMLRect*)  &(x)->lpIHTMLRectVtbl)
@@ -82,8 +86,11 @@ static ULONG WINAPI HTMLRect_Release(IHTMLRect *iface)
 
     TRACE("(%p) ref=%d\n", This, ref);
 
-    if(!ref)
+    if(!ref) {
+        if(This->nsrect)
+            nsIDOMClientRect_Release(This->nsrect);
         heap_free(This);
+    }
 
     return ref;
 }
@@ -145,8 +152,19 @@ static HRESULT WINAPI HTMLRect_put_top(IHTMLRect *iface, LONG v)
 static HRESULT WINAPI HTMLRect_get_top(IHTMLRect *iface, LONG *p)
 {
     HTMLRect *This = HTMLRECT_THIS(iface);
-    FIXME("(%p)->(%p)\n", This, p);
-    return E_NOTIMPL;
+    float top;
+    nsresult nsres;
+
+    TRACE("(%p)->(%p)\n", This, p);
+
+    nsres = nsIDOMClientRect_GetTop(This->nsrect, &top);
+    if(NS_FAILED(nsres)) {
+        ERR("GetTop failed: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    *p = floor(top+0.5);
+    return S_OK;
 }
 
 static HRESULT WINAPI HTMLRect_put_right(IHTMLRect *iface, LONG v)
@@ -208,7 +226,7 @@ static dispex_static_data_t HTMLRect_dispex = {
     HTMLRect_iface_tids
 };
 
-static HRESULT create_html_rect(IHTMLRect **ret)
+static HRESULT create_html_rect(nsIDOMClientRect *nsrect, IHTMLRect **ret)
 {
     HTMLRect *rect;
 
@@ -221,6 +239,9 @@ static HRESULT create_html_rect(IHTMLRect **ret)
 
     init_dispex(&rect->dispex, (IUnknown*)HTMLRECT(rect), &HTMLRect_dispex);
 
+    nsIDOMClientRect_AddRef(nsrect);
+    rect->nsrect = nsrect;
+
     *ret = HTMLRECT(rect);
     return S_OK;
 }
@@ -556,10 +577,31 @@ static HRESULT WINAPI HTMLElement2_getClientRects(IHTMLElement2 *iface, IHTMLRec
 static HRESULT WINAPI HTMLElement2_getBoundingClientRect(IHTMLElement2 *iface, IHTMLRect **pRect)
 {
     HTMLElement *This = HTMLELEM2_THIS(iface);
+    nsIDOMNSElement *nselem;
+    nsIDOMClientRect *nsrect;
+    nsresult nsres;
+    HRESULT hres;
 
     TRACE("(%p)->(%p)\n", This, pRect);
 
-    return create_html_rect(pRect);
+    nsres = nsIDOMHTMLElement_QueryInterface(This->node.nsnode, &IID_nsIDOMNSElement,
+            (void**)&nselem);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIDOMNSElement iface: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    nsres = nsIDOMNSElement_GetBoundingClientRect(nselem, &nsrect);
+    nsIDOMNSElement_Release(nselem);
+    if(NS_FAILED(nsres) || !nsrect) {
+        ERR("GetBoindingClientRect failed: %08x\n", nsres);
+        return E_FAIL;
+    }
+
+    hres = create_html_rect(nsrect, pRect);
+
+    nsIDOMClientRect_Release(nsrect);
+    return hres;
 }
 
 static HRESULT WINAPI HTMLElement2_setExpression(IHTMLElement2 *iface, BSTR propname,

dlls/mshtml/nsiface.idl

@@ -131,7 +131,6 @@ typedef nsISupports nsIDOMMediaList;
 typedef nsISupports nsIDOMHTMLTableCaptionElement;
 typedef nsISupports nsIDOMHTMLTableSectionElement;
 typedef nsISupports nsIDOMClientRectList;
-typedef nsISupports nsIDOMClientRect;
 typedef nsISupports nsIDOMLocation;
 typedef nsISupports nsIDocument;
 typedef nsISupports nsIContent;
@@ -734,6 +733,22 @@ interface nsIDOMElementCSSInlineStyle : nsISupports
 
 [
     object,
+    uuid(b2f824c4-d9d3-499b-8d3b-45c8245497c6),
+    local
+    /* NOT_FROZEN */
+]
+interface nsIDOMClientRect : nsISupports
+{
+    nsresult GetLeft(float *aLeft);
+    nsresult GetTop(float *aTop);
+    nsresult GetRight(float *aRight);
+    nsresult GetBottom(float *aBottom);
+    nsresult GetWidth(float *aWidth);
+    nsresult GetHeight(float *aHeight);
+}
+
+[
+    object,
     uuid(f0aef489-18c5-4de6-99d5-58b3758b098c),
     local
     /* NOT_FROZEN */

dlls/mshtml/tests/dom.c

@@ -2854,18 +2854,27 @@ static void _test_style_set_csstext(unsigned line, IHTMLStyle *style, const char
 
 static void test_elem_bounding_client_rect(IUnknown *unk)
 {
+    IHTMLRect *rect, *rect2;
     IHTMLElement2 *elem2;
-    IHTMLRect *rect;
+    LONG l;
     HRESULT hres;
 
     elem2 = get_elem2_iface(unk);
     hres = IHTMLElement2_getBoundingClientRect(elem2, &rect);
+    hres = IHTMLElement2_getBoundingClientRect(elem2, &rect2);
     IHTMLElement2_Release(elem2);
     ok(hres == S_OK, "getBoundingClientRect failed: %08x\n", hres);
     ok(rect != NULL, "rect == NULL\n");
+    ok(rect != rect2, "rect == rect2\n");
+    IHTMLRect_Release(rect2);
 
     test_disp((IUnknown*)rect, &IID_IHTMLRect, "[object]");
 
+    l = 0xdeadbeef;
+    hres = IHTMLRect_get_top(rect, &l);
+    ok(hres == S_OK, "get_top failed: %08x\n", hres);
+    ok(l != 0xdeadbeef, "l = 0xdeadbeef\n");
+
     IHTMLRect_Release(rect);
 }