mshtml: Add IHTMLCSSStyleDeclaration2::columnWidth property semi-stub implementation.

dlls/mshtml/htmlstyle.c

@@ -554,6 +554,11 @@ static const style_tbl_entry_t style_tbl[] = {
         DISPID_UNKNOWN
     },
     {
+        L"column-gap",
+        DISPID_IHTMLCSSSTYLEDECLARATION2_COLUMNGAP,
+        DISPID_UNKNOWN
+    },
+    {
         L"column-width",
         DISPID_IHTMLCSSSTYLEDECLARATION2_COLUMNWIDTH,
         DISPID_UNKNOWN
@@ -8832,15 +8837,15 @@ static HRESULT WINAPI HTMLCSSStyleDeclaration2_get_columnWidth(IHTMLCSSStyleDecl
 static HRESULT WINAPI HTMLCSSStyleDeclaration2_put_columnGap(IHTMLCSSStyleDeclaration2 *iface, VARIANT v)
 {
     CSSStyle *This = impl_from_IHTMLCSSStyleDeclaration2(iface);
-    FIXME("(%p)->(%s)\n", This, debugstr_variant(&v));
-    return E_NOTIMPL;
+    TRACE("(%p)->(%s)\n", This, debugstr_variant(&v));
+    return set_style_property_var(This, STYLEID_COLUMN_GAP, &v);
 }
 
 static HRESULT WINAPI HTMLCSSStyleDeclaration2_get_columnGap(IHTMLCSSStyleDeclaration2 *iface, VARIANT *p)
 {
     CSSStyle *This = impl_from_IHTMLCSSStyleDeclaration2(iface);
-    FIXME("(%p)->(%p)\n", This, p);
-    return E_NOTIMPL;
+    TRACE("(%p)->(%p)\n", This, p);
+    return get_style_property_var(This, STYLEID_COLUMN_GAP, p);
 }
 
 static HRESULT WINAPI HTMLCSSStyleDeclaration2_put_columnFill(IHTMLCSSStyleDeclaration2 *iface, BSTR v)

dlls/mshtml/htmlstyle.h

@@ -82,6 +82,7 @@ typedef enum {
     STYLEID_CLIP,
     STYLEID_COLOR,
     STYLEID_COLUMN_COUNT,
+    STYLEID_COLUMN_GAP,
     STYLEID_COLUMN_WIDTH,
     STYLEID_CURSOR,
     STYLEID_DIRECTION,

dlls/mshtml/tests/style.c

@@ -951,6 +951,36 @@ static void test_css_style_declaration2(IHTMLCSSStyleDeclaration2 *css_style)
     todo_wine
     ok(V_VT(&v) == VT_BSTR && V_BSTR(&v) && !lstrcmpW(V_BSTR(&v), L"20px"), "columnWidth = %s\n", wine_dbgstr_variant(&v));
     VariantClear(&v);
+
+    V_VT(&v) = VT_ERROR;
+    hres = IHTMLCSSStyleDeclaration2_get_columnGap(css_style, &v);
+    ok(hres == S_OK, "get_columnGap failed: %08x\n", hres);
+    ok(V_VT(&v) == VT_BSTR && !V_BSTR(&v), "columnGap = %s\n", wine_dbgstr_variant(&v));
+    VariantClear(&v);
+
+    V_VT(&v) = VT_I4;
+    V_I4(&v) = 20;
+    hres = IHTMLCSSStyleDeclaration2_put_columnGap(css_style, v);
+    ok(hres == S_OK, "put_columnGap failed: %08x\n", hres);
+
+    V_VT(&v) = VT_ERROR;
+    hres = IHTMLCSSStyleDeclaration2_get_columnGap(css_style, &v);
+    ok(hres == S_OK, "get_columnGap failed: %08x\n", hres);
+    ok(V_VT(&v) == VT_BSTR && !V_BSTR(&v), "columnGap = %s\n", wine_dbgstr_variant(&v));
+    VariantClear(&v);
+
+    V_VT(&v) = VT_BSTR;
+    V_BSTR(&v) = SysAllocString(L"20px");
+    hres = IHTMLCSSStyleDeclaration2_put_columnGap(css_style, v);
+    ok(hres == S_OK, "put_columnGap failed: %08x\n", hres);
+    VariantClear(&v);
+
+    V_VT(&v) = VT_ERROR;
+    hres = IHTMLCSSStyleDeclaration2_get_columnGap(css_style, &v);
+    ok(hres == S_OK, "get_columnGap failed: %08x\n", hres);
+    todo_wine
+    ok(V_VT(&v) == VT_BSTR && V_BSTR(&v) && !lstrcmpW(V_BSTR(&v), L"20px"), "columnGap = %s\n", wine_dbgstr_variant(&v));
+    VariantClear(&v);
 }
 
 static void test_body_style(IHTMLStyle *style)