mshtml: Added IHTMLWindow6::postMessage semi-stub implementation.

dlls/mshtml/htmlwindow.c

@@ -2134,8 +2134,16 @@ static HRESULT WINAPI HTMLWindow6_get_maxConnectionsPerServer(IHTMLWindow6 *ifac
 static HRESULT WINAPI HTMLWindow6_postMessage(IHTMLWindow6 *iface, BSTR msg, VARIANT targetOrigin)
 {
     HTMLWindow *This = impl_from_IHTMLWindow6(iface);
-    FIXME("(%p)->(%s %s)\n", This, debugstr_w(msg), debugstr_variant(&targetOrigin));
-    return E_NOTIMPL;
+
+    FIXME("(%p)->(%s %s) semi-stub\n", This, debugstr_w(msg), debugstr_variant(&targetOrigin));
+
+    if(!This->inner_window->doc) {
+        FIXME("No document\n");
+        return E_FAIL;
+    }
+
+    fire_event(This->inner_window->doc, EVENTID_MESSAGE, TRUE, &This->inner_window->doc->node, NULL, NULL);
+    return S_OK;
 }
 
 static HRESULT WINAPI HTMLWindow6_toStaticHTML(IHTMLWindow6 *iface, BSTR bstrHTML, BSTR *pbstrStaticHTML)

dlls/mshtml/tests/jstest.html

@@ -362,6 +362,15 @@ function test_xhr() {
     ok(typeof(xhr) === "object", "typeof(xhr) = " + typeof(xhr));
 }
 
+function test_sendMessage() {
+    var onmessage_called = false;
+    window.onmessage = function() {
+        onmessage_called = true;
+    }
+    window.postMessage("test", "*");
+    ok(onmessage_called, "onmessage not called");
+}
+
 var globalVar = false;
 
 function runTests() {
@@ -388,6 +397,7 @@ function runTests() {
     test_language_attribute();
     test_text_node();
     test_xhr();
+    test_sendMessage();
 
     var r = window.execScript("globalVar = true;");
     ok(r === undefined, "execScript returned " + r);