mshtml: Implement performance.timing.msFirstPaint.

dlls/mshtml/mshtml_private.h

@@ -524,6 +524,7 @@ typedef struct {
     ULONGLONG dom_content_loaded_event_end_time;
     ULONGLONG load_event_start_time;
     ULONGLONG load_event_end_time;
+    ULONGLONG first_paint_time;
 } HTMLPerformanceTiming;
 
 typedef struct nsChannelBSC nsChannelBSC;

dlls/mshtml/omnavigator.c

@@ -1585,8 +1585,6 @@ static HRESULT WINAPI HTMLPerformanceTiming_Invoke(IHTMLPerformanceTiming *iface
             pDispParams, pVarResult, pExcepInfo, puArgErr);
 }
 
-#define TIMING_FAKE_TIMESTAMP 0xdeadbeef
-
 static ULONGLONG get_fetch_time(HTMLPerformanceTiming *This)
 {
     /* If there's no prior doc unloaded and no redirects, fetch time == navigationStart time */
@@ -1816,9 +1814,9 @@ static HRESULT WINAPI HTMLPerformanceTiming_get_msFirstPaint(IHTMLPerformanceTim
 {
     HTMLPerformanceTiming *This = impl_from_IHTMLPerformanceTiming(iface);
 
-    FIXME("(%p)->(%p) returning fake value\n", This, p);
+    TRACE("(%p)->(%p)\n", This, p);
 
-    *p = TIMING_FAKE_TIMESTAMP;
+    *p = This->first_paint_time;
     return S_OK;
 }
 

dlls/mshtml/tests/documentmode.js

@@ -39,6 +39,7 @@ ok(performance.timing.unloadEventStart === 0, "unloadEventStart != 0");
 ok(performance.timing.unloadEventEnd === 0, "unloadEventEnd != 0");
 ok(performance.timing.redirectStart === 0, "redirectStart != 0");
 ok(performance.timing.redirectEnd === 0, "redirectEnd != 0");
+ok(performance.timing.msFirstPaint === 0, "msFirstPaint != 0");
 
 var pageshow_fired = false, pagehide_fired = false;
 document.doc_unload_events_called = false;

dlls/mshtml/view.c

@@ -50,6 +50,9 @@ static void paint_document(HTMLDocumentObj *This)
     RECT rect;
     HDC hdc;
 
+    if(This->window && This->window->base.inner_window && !This->window->base.inner_window->performance_timing->first_paint_time)
+        This->window->base.inner_window->performance_timing->first_paint_time = get_time_stamp();
+
     GetClientRect(This->hwnd, &rect);
 
     hdc = BeginPaint(This->hwnd, &ps);