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// Copyright 2018 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 "third_party/blink/renderer/core/css/css_computed_style_declaration.h"
#include "third_party/blink/renderer/core/dom/shadow_root.h"
#include "third_party/blink/renderer/core/html/html_element.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
namespace blink {
class CSSComputedStyleDeclarationTest : public PageTestBase {};
TEST_F(CSSComputedStyleDeclarationTest, CleanAncestorsNoRecalc) {
GetDocument().body()->SetInnerHTMLFromString(R"HTML(
<div id=dirty></div>
<div>
<div id=target style='color:green'></div>
</div>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases();
EXPECT_FALSE(GetDocument().NeedsLayoutTreeUpdate());
GetDocument().getElementById("dirty")->setAttribute("style", "color:pink");
EXPECT_TRUE(GetDocument().NeedsLayoutTreeUpdate());
Element* target = GetDocument().getElementById("target");
CSSComputedStyleDeclaration* computed =
CSSComputedStyleDeclaration::Create(target);
EXPECT_STREQ("rgb(0, 128, 0)",
computed->GetPropertyValue(CSSPropertyColor).Utf8().data());
EXPECT_TRUE(GetDocument().NeedsLayoutTreeUpdate());
}
TEST_F(CSSComputedStyleDeclarationTest, CleanShadowAncestorsNoRecalc) {
GetDocument().body()->SetInnerHTMLFromString(R"HTML(
<div id=dirty></div>
<div id=host></div>
)HTML");
Element* host = GetDocument().getElementById("host");
ShadowRoot& shadow_root =
host->AttachShadowRootInternal(ShadowRootType::kOpen);
shadow_root.SetInnerHTMLFromString(R"HTML(
<div id=target style='color:green'></div>
)HTML");
GetDocument().View()->UpdateAllLifecyclePhases();
EXPECT_FALSE(GetDocument().NeedsLayoutTreeUpdate());
GetDocument().getElementById("dirty")->setAttribute("style", "color:pink");
EXPECT_TRUE(GetDocument().NeedsLayoutTreeUpdate());
Element* target = shadow_root.getElementById("target");
CSSComputedStyleDeclaration* computed =
CSSComputedStyleDeclaration::Create(target);
EXPECT_STREQ("rgb(0, 128, 0)",
computed->GetPropertyValue(CSSPropertyColor).Utf8().data());
EXPECT_TRUE(GetDocument().NeedsLayoutTreeUpdate());
}
} // namespace blink
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