Defer loads in new pages/frames if ScopedPageLoadDeferral is active

third_party/WebKit/Source/web/tests/WebViewTest.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 32 matching lines @@
 #include "core/frame/Settings.h"
 #include "core/frame/VisualViewport.h"
 #include "core/html/HTMLDocument.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/layout/LayoutView.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/page/Page.h"
+#include "core/page/ScopedPageLoadDeferrer.h"
 #include "core/paint/PaintLayer.h"
 #include "core/paint/PaintLayerPainter.h"
 #include "core/timing/DOMWindowPerformance.h"
 #include "core/timing/Performance.h"
 #include "core/timing/PerformanceCompositeTiming.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/GraphicsContext.h"
@@ skipping 3146 matching lines @@
     WebLocalFrameImpl* frame = webView->mainFrameImpl();
     frame->setAutofillClient(&client);
     webView->setInitialFocus(false);
 
     EXPECT_TRUE(webView->confirmComposition(WebString::fromUTF8(std::string("hello").c_str())));
     EXPECT_EQ(1, client.textChangesFromUserGesture());
     EXPECT_FALSE(UserGestureIndicator::processingUserGesture());
     frame->setAutofillClient(0);
 }
 
+// Verify that a WebView created with a ScopedPageLoadDeferrer already on the
+// stack defers its loads.
+TEST_F(WebViewTest, CreatedDuringLoadDeferral)
+{
+    {
+        WebViewImpl* webView = m_webViewHelper.initialize();
+        EXPECT_FALSE(webView->page()->defersLoading());
+    }
+
+    {
+        ScopedPageLoadDeferrer deferrer;
+        WebViewImpl* webView = m_webViewHelper.initialize();
+        EXPECT_TRUE(webView->page()->defersLoading());
+    }
+}
+
+// Verify that page loads are deferred until all ScopedPageLoadDeferrers are
+// destroyed.
+TEST_F(WebViewTest, NestedLoadDeferrals)
+{
+    WebViewImpl* webView = m_webViewHelper.initialize();
+    EXPECT_FALSE(webView->page()->defersLoading());
+
+    {
+        ScopedPageLoadDeferrer deferrer;
+        EXPECT_TRUE(webView->page()->defersLoading());
+
+        {
+            ScopedPageLoadDeferrer deferrer2;
+            EXPECT_TRUE(webView->page()->defersLoading());
+        }
+
+        EXPECT_TRUE(webView->page()->defersLoading());
+    }
+
+    EXPECT_FALSE(webView->page()->defersLoading());
+}
+
 } // namespace blink