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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/web/web_script_source.h"
#include "third_party/blink/renderer/core/css/css_style_declaration.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/frame/web_local_frame_impl.h"
#include "third_party/blink/renderer/core/html/html_anchor_element.h"
#include "third_party/blink/renderer/core/layout/layout_object.h"
#include "third_party/blink/renderer/core/page/focus_controller.h"
#include "third_party/blink/renderer/core/paint/paint_layer_scrollable_area.h"
#include "third_party/blink/renderer/core/testing/sim/sim_request.h"
#include "third_party/blink/renderer/core/testing/sim/sim_test.h"
#include "third_party/blink/renderer/platform/testing/unit_test_helpers.h"
namespace blink {
namespace {
using test::RunPendingTasks;
class FragmentAnchorTest : public SimTest {};
// Ensure that the focus event handler is run before the rAF callback. We'll
// change the background color from a rAF set in the focus handler and make
// sure the computed background color of that frame was changed. See:
// https://groups.google.com/a/chromium.org/d/msg/blink-dev/5BJSTl-FMGY/JMtaKqGhBAAJ
TEST_F(FragmentAnchorTest, FocusHandlerRunBeforeRaf) {
SimRequest main_resource("https://example.com/test.html", "text/html");
SimSubresourceRequest css_resource("https://example.com/sheet.css",
"text/css");
LoadURL("https://example.com/test.html");
main_resource.Complete(R"HTML(
<!DOCTYPE html>
<style>
body {
background-color: red;
}
</style>
<link rel="stylesheet" type="text/css" href="sheet.css">
<a id="anchorlink" href="#bottom">Link to bottom of the page</a>
<div style="height: 1000px;"></div>
<input id="bottom">Bottom of the page</input>
)HTML");
MainFrame().ExecuteScript(WebScriptSource(R"HTML(
document.getElementById("bottom").addEventListener('focus', () => {
requestAnimationFrame(() => {
document.body.style.backgroundColor = '#00FF00';
});
});
)HTML"));
// Focus handlers aren't run unless the page is focused.
GetDocument().GetPage()->GetFocusController().SetFocused(true);
// We're still waiting on the stylesheet to load so the load event shouldn't
// yet dispatch and rendering is deferred.
ASSERT_FALSE(GetDocument().IsRenderingReady());
ASSERT_FALSE(GetDocument().IsLoadCompleted());
// Click on the anchor element. This will cause a synchronous same-document
// navigation.
HTMLAnchorElement* anchor =
ToHTMLAnchorElement(GetDocument().getElementById("anchorlink"));
anchor->click();
ASSERT_EQ(GetDocument().body(), GetDocument().ActiveElement())
<< "Active element changed while rendering is blocked";
// Complete the CSS stylesheet load so the document can finish loading. The
// fragment should be activated at that point.
css_resource.Complete("");
Compositor().BeginFrame();
ASSERT_FALSE(GetDocument().IsLoadCompleted());
ASSERT_TRUE(GetDocument().IsRenderingReady());
ASSERT_EQ(GetDocument().getElementById("bottom"),
GetDocument().ActiveElement())
<< "Active element wasn't changed after rendering was unblocked.";
EXPECT_EQ(GetDocument()
.body()
->GetLayoutObject()
->Style()
->VisitedDependentColor(GetCSSPropertyBackgroundColor())
.NameForLayoutTreeAsText(),
Color(0, 255, 0).NameForLayoutTreeAsText());
}
} // namespace
} // namespace blink
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