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// Copyright 2020 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/resolver/style_builder.h"
#include "third_party/blink/renderer/core/css/css_identifier_value.h"
#include "third_party/blink/renderer/core/css/css_inherited_value.h"
#include "third_party/blink/renderer/core/css/css_initial_value.h"
#include "third_party/blink/renderer/core/css/resolver/style_resolver_state.h"
#include "third_party/blink/renderer/core/html/html_element.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
#include "third_party/blink/renderer/platform/testing/runtime_enabled_features_test_helpers.h"
namespace blink {
class StyleBuilderTest : public PageTestBase {};
TEST_F(StyleBuilderTest, WritingModeChangeDirtiesFont) {
const CSSProperty* properties[] = {
&GetCSSPropertyWritingMode(),
&GetCSSPropertyWebkitWritingMode(),
};
HeapVector<Member<const CSSValue>> values = {
CSSInitialValue::Create(),
CSSInheritedValue::Create(),
CSSIdentifierValue::Create(CSSValueID::kHorizontalTb),
};
for (const CSSProperty* property : properties) {
for (const CSSValue* value : values) {
auto parent_style = ComputedStyle::Create();
auto style = ComputedStyle::Create();
// This test assumes that initial 'writing-mode' is not 'vertical-lr'.
ASSERT_NE(WritingMode::kVerticalLr, style->GetWritingMode());
style->SetWritingMode(WritingMode::kVerticalLr);
StyleResolverState state(GetDocument(), *GetDocument().body(),
parent_style.get(), parent_style.get());
state.SetStyle(style);
ASSERT_FALSE(state.GetFontBuilder().FontDirty());
StyleBuilder::ApplyProperty(*property, state, *value);
EXPECT_TRUE(state.GetFontBuilder().FontDirty());
}
}
}
TEST_F(StyleBuilderTest, TextOrientationChangeDirtiesFont) {
const CSSProperty* properties[] = {
&GetCSSPropertyTextOrientation(),
&GetCSSPropertyWebkitTextOrientation(),
};
HeapVector<Member<const CSSValue>> values = {
CSSInitialValue::Create(),
CSSInheritedValue::Create(),
CSSIdentifierValue::Create(CSSValueID::kMixed),
};
for (const CSSProperty* property : properties) {
for (const CSSValue* value : values) {
auto parent_style = ComputedStyle::Create();
auto style = ComputedStyle::Create();
// This test assumes that initial 'text-orientation' is not 'upright'.
ASSERT_NE(ETextOrientation::kUpright, style->GetTextOrientation());
style->SetTextOrientation(ETextOrientation::kUpright);
StyleResolverState state(GetDocument(), *GetDocument().body(),
parent_style.get(), parent_style.get());
state.SetStyle(style);
ASSERT_FALSE(state.GetFontBuilder().FontDirty());
StyleBuilder::ApplyProperty(*property, state, *value);
EXPECT_TRUE(state.GetFontBuilder().FontDirty());
}
}
}
TEST_F(StyleBuilderTest, HasExplicitInheritance) {
auto parent_style = ComputedStyle::Create();
auto style = ComputedStyle::Create();
StyleResolverState state(GetDocument(), *GetDocument().body(),
parent_style.get(), parent_style.get());
state.SetStyle(style);
EXPECT_FALSE(style->HasExplicitInheritance());
// Flag should not be set for properties which are inherited.
StyleBuilder::ApplyProperty(GetCSSPropertyColor(), state,
*CSSInheritedValue::Create());
EXPECT_FALSE(style->HasExplicitInheritance());
StyleBuilder::ApplyProperty(GetCSSPropertyBackgroundColor(), state,
*CSSInheritedValue::Create());
EXPECT_TRUE(style->HasExplicitInheritance());
}
} // namespace blink
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