Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1866)

Unified Diff: Source/web/tests/DocumentLoadingRenderingTest.cpp

Issue 1329553004: Add a FOUC painting test. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: fix build. Created 5 years, 3 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « Source/platform/graphics/GraphicsLayer.cpp ('k') | Source/web/tests/sim/SimCanvas.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: Source/web/tests/DocumentLoadingRenderingTest.cpp
diff --git a/Source/web/tests/DocumentLoadingRenderingTest.cpp b/Source/web/tests/DocumentLoadingRenderingTest.cpp
index fae191b38175c3994175cb935eb665b993c74fff..408bd097b56a3c8c6c4a1b3d203b68a9f08b5ffa 100644
--- a/Source/web/tests/DocumentLoadingRenderingTest.cpp
+++ b/Source/web/tests/DocumentLoadingRenderingTest.cpp
@@ -5,9 +5,11 @@
#include "config.h"
#include "core/dom/Document.h"
-#include "core/page/Page.h"
+#include "core/frame/FrameView.h"
#include "web/WebLocalFrameImpl.h"
#include "web/tests/FrameTestHelpers.h"
+#include "web/tests/sim/SimCompositor.h"
+#include "web/tests/sim/SimDisplayItemList.h"
#include "web/tests/sim/SimLayerTreeView.h"
#include "web/tests/sim/SimNetwork.h"
#include "web/tests/sim/SimRequest.h"
@@ -20,14 +22,16 @@ class DocumentLoadingRenderingTest : public ::testing::Test {
protected:
DocumentLoadingRenderingTest()
: m_webViewClient(m_layerTreeView)
+ , m_compositor(m_layerTreeView)
{
m_webViewHelper.initialize(true, nullptr, &m_webViewClient);
- Document::setThreadedParsingEnabledForUnitTestsOnly(false);
+ m_compositor.setWebViewImpl(webView());
+ Document::setThreadedParsingEnabledForTesting(false);
}
virtual ~DocumentLoadingRenderingTest()
{
- Document::setThreadedParsingEnabledForUnitTestsOnly(true);
+ Document::setThreadedParsingEnabledForTesting(true);
}
void loadURL(const String& url)
@@ -35,14 +39,23 @@ protected:
WebURLRequest request;
request.initialize();
request.setURL(KURL(ParsedURLString, url));
- m_webViewHelper.webViewImpl()->mainFrameImpl()->loadRequest(request);
+ webView().mainFrameImpl()->loadRequest(request);
}
- Document& document() { return *toLocalFrame(m_webViewHelper.webViewImpl()->page()->mainFrame())->document(); }
+ Document& document()
+ {
+ return *webView().mainFrameImpl()->frame()->document();
+ }
+
+ WebViewImpl& webView()
+ {
+ return *m_webViewHelper.webViewImpl();
+ }
SimNetwork m_network;
SimLayerTreeView m_layerTreeView;
SimWebViewClient m_webViewClient;
+ SimCompositor m_compositor;
FrameTestHelpers::WebViewHelper m_webViewHelper;
};
@@ -200,4 +213,74 @@ TEST_F(DocumentLoadingRenderingTest, ShouldScheduleFrameAfterSheetsLoaded)
EXPECT_TRUE(m_layerTreeView.needsAnimate());
}
+TEST_F(DocumentLoadingRenderingTest, ShouldNotPaintIframeContentWithPendingSheets)
+{
+ SimRequest mainResource("https://example.com/test.html", "text/html");
+ SimRequest frameResource("https://example.com/frame.html", "text/html");
+ SimRequest cssResource("https://example.com/test.css", "text/css");
+
+ loadURL("https://example.com/test.html");
+
+ webView().resize(WebSize(800, 600));
+
+ mainResource.start();
+ mainResource.write(
+ "<!DOCTYPE html>"
+ "<iframe src=frame.html style='border: none'></iframe>"
+ "<p style='transform: translateZ(0)'>Hello World</p>"
+ );
+ mainResource.finish();
+
+ // Main page is ready to begin painting as there's no pending sheets.
+ // The frame is not yet loaded, so we only paint the top level page.
+ auto frame1 = m_compositor.beginFrame();
+ EXPECT_TRUE(frame1.containsText());
+
+ frameResource.start();
+ frameResource.write(
+ "<!DOCTYPE html>"
+ "<style>html { background: pink }</style>"
+ "<link rel=stylesheet href=test.css>"
+ "<p style='background: yellow;'>Hello World</p>"
+ "<div style='transform: translateZ(0); background: green;'>"
+ " <p style='background: blue;'>Hello Layer</p>"
+ " <div style='position: relative; background: red;'>Hello World</div>"
+ "</div>"
+ );
+ frameResource.finish();
+
+ // Trigger a layout with pending sheets. For example a page could trigger
+ // this by doing offsetTop in a setTimeout, or by a parent frame executing
+ // script that touched offsetTop in the child frame.
+ LocalFrame* childFrame = toLocalFrame(document().frame()->tree().firstChild());
+ childFrame->document()->updateLayoutIgnorePendingStylesheets();
+
+ auto frame2 = m_compositor.beginFrame();
+
+ // The child frame still has pending sheets, and the parent frame has no
+ // invalid paint so we shouldn't draw any text.
+ EXPECT_FALSE(frame2.containsText());
+
+ // 1 for the main frame background (white),
+ // 1 for the iframe background (pink)
+ // 1 for the composited transform layer in the iframe (green).
+ // TODO(esprehn): Why FOUC the background (borders, etc.) of iframes and
+ // composited layers? Seems like a bug.
+ EXPECT_EQ(3, frame2.drawCount());
+ EXPECT_TRUE(frame2.contains(SimCanvas::Rect, "white"));
+ EXPECT_TRUE(frame2.contains(SimCanvas::Rect, "pink"));
+ EXPECT_TRUE(frame2.contains(SimCanvas::Rect, "green"));
+
+ // Finish loading the sheets in the child frame. After it should issue a
+ // paint invalidation for every layer since frame2 painted them but skipped
+ // painting the real content to avoid FOUC.
+ cssResource.start();
+ cssResource.finish();
+
+ // First frame where all frames are loaded, should paint the text in the
+ // child frame.
+ auto frame3 = m_compositor.beginFrame();
+ EXPECT_TRUE(frame3.containsText());
+}
+
} // namespace blink
« no previous file with comments | « Source/platform/graphics/GraphicsLayer.cpp ('k') | Source/web/tests/sim/SimCanvas.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698