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// Copyright 2014 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 "core/css/resolver/FontBuilder.h"
#include "core/css/CSSFontSelector.h"
#include "core/dom/Document.h"
#include "core/dom/StyleEngine.h"
#include "core/frame/Settings.h"
#include "core/style/ComputedStyle.h"
#include "core/testing/DummyPageHolder.h"
#include "testing/gtest/include/gtest/gtest.h"
#include <memory>
namespace blink {
class FontBuilderTest {
public:
FontBuilderTest() : m_dummy(DummyPageHolder::create(IntSize(800, 600))) {
settings().setDefaultFontSize(16.0f);
}
Document& document() { return m_dummy->document(); }
Settings& settings() { return *document().settings(); }
private:
std::unique_ptr<DummyPageHolder> m_dummy;
};
using BuilderFunc = void (*)(FontBuilder&);
using DescriptionFunc = void (*)(FontDescription&);
struct FunctionPair {
FunctionPair(DescriptionFunc base, BuilderFunc value)
: setBaseValue(base), setValue(value) {}
DescriptionFunc setBaseValue;
BuilderFunc setValue;
};
class FontBuilderInitTest : public FontBuilderTest, public ::testing::Test {};
class FontBuilderAdditiveTest : public FontBuilderTest,
public ::testing::TestWithParam<FunctionPair> {
};
TEST_F(FontBuilderInitTest, InitialFontSizeNotScaled) {
RefPtr<ComputedStyle> initial = ComputedStyle::create();
FontBuilder builder(document());
builder.setInitial(1.0f); // FIXME: Remove unused param.
builder.createFont(document().styleEngine().fontSelector(), *initial);
EXPECT_EQ(16.0f, initial->getFontDescription().computedSize());
}
TEST_F(FontBuilderInitTest, NotDirty) {
FontBuilder builder(document());
ASSERT_FALSE(builder.fontDirty());
}
// This test verifies that when you are setting some field F via FontBuilder,
// only F is actually modified on the incoming ComputedStyle::fontDescription.
TEST_P(FontBuilderAdditiveTest, OnlySetValueIsModified) {
FunctionPair funcs = GetParam();
FontDescription parentDescription;
funcs.setBaseValue(parentDescription);
RefPtr<ComputedStyle> style = ComputedStyle::create();
style->setFontDescription(parentDescription);
FontBuilder fontBuilder(document());
funcs.setValue(fontBuilder);
fontBuilder.createFont(document().styleEngine().fontSelector(), *style);
FontDescription outputDescription = style->getFontDescription();
// FontBuilder should have overwritten our base value set in the parent,
// hence the descriptions should not be equal.
ASSERT_NE(parentDescription, outputDescription);
// Overwrite the value set by FontBuilder with the base value, directly
// on outputDescription.
funcs.setBaseValue(outputDescription);
// Now the descriptions should be equal again. If they are, we know that
// FontBuilder did not change something it wasn't supposed to.
ASSERT_EQ(parentDescription, outputDescription);
}
static void fontWeightBase(FontDescription& d) {
d.setWeight(FontWeight900);
}
static void fontWeightValue(FontBuilder& b) {
b.setWeight(FontWeightNormal);
}
static void fontStretchBase(FontDescription& d) {
d.setStretch(FontStretchUltraExpanded);
}
static void fontStretchValue(FontBuilder& b) {
b.setStretch(FontStretchExtraCondensed);
}
static void fontFamilyBase(FontDescription& d) {
d.setGenericFamily(FontDescription::FantasyFamily);
}
static void fontFamilyValue(FontBuilder& b) {
b.setFamilyDescription(
FontDescription::FamilyDescription(FontDescription::CursiveFamily));
}
static void fontFeatureSettingsBase(FontDescription& d) {
d.setFeatureSettings(nullptr);
}
static void fontFeatureSettingsValue(FontBuilder& b) {
b.setFeatureSettings(FontFeatureSettings::create());
}
static void fontStyleBase(FontDescription& d) {
d.setStyle(FontStyleItalic);
}
static void fontStyleValue(FontBuilder& b) {
b.setStyle(FontStyleNormal);
}
static void fontVariantCapsBase(FontDescription& d) {
d.setVariantCaps(FontDescription::SmallCaps);
}
static void fontVariantCapsValue(FontBuilder& b) {
b.setVariantCaps(FontDescription::CapsNormal);
}
static void fontVariantLigaturesBase(FontDescription& d) {
d.setVariantLigatures(FontDescription::VariantLigatures(
FontDescription::EnabledLigaturesState));
}
static void fontVariantLigaturesValue(FontBuilder& b) {
b.setVariantLigatures(FontDescription::VariantLigatures(
FontDescription::DisabledLigaturesState));
}
static void fontVariantNumericBase(FontDescription& d) {
d.setVariantNumeric(FontVariantNumeric());
}
static void fontVariantNumericValue(FontBuilder& b) {
FontVariantNumeric variantNumeric;
variantNumeric.setNumericFraction(FontVariantNumeric::StackedFractions);
b.setVariantNumeric(variantNumeric);
}
static void fontTextRenderingBase(FontDescription& d) {
d.setTextRendering(GeometricPrecision);
}
static void fontTextRenderingValue(FontBuilder& b) {
b.setTextRendering(OptimizeLegibility);
}
static void fontKerningBase(FontDescription& d) {
d.setKerning(FontDescription::NormalKerning);
}
static void fontKerningValue(FontBuilder& b) {
b.setKerning(FontDescription::NoneKerning);
}
static void fontFontSmoothingBase(FontDescription& d) {
d.setFontSmoothing(Antialiased);
}
static void fontFontSmoothingValue(FontBuilder& b) {
b.setFontSmoothing(SubpixelAntialiased);
}
static void fontSizeBase(FontDescription& d) {
d.setSpecifiedSize(37.0f);
d.setComputedSize(37.0f);
d.setIsAbsoluteSize(true);
d.setKeywordSize(7);
}
static void fontSizeValue(FontBuilder& b) {
b.setSize(FontDescription::Size(20.0f, 0, false));
}
static void fontScriptBase(FontDescription& d) {
d.setLocale(LayoutLocale::get("no"));
}
static void fontScriptValue(FontBuilder& b) {
b.setLocale(LayoutLocale::get("se"));
}
INSTANTIATE_TEST_CASE_P(
AllFields,
FontBuilderAdditiveTest,
::testing::Values(
FunctionPair(fontWeightBase, fontWeightValue),
FunctionPair(fontStretchBase, fontStretchValue),
FunctionPair(fontFamilyBase, fontFamilyValue),
FunctionPair(fontFeatureSettingsBase, fontFeatureSettingsValue),
FunctionPair(fontStyleBase, fontStyleValue),
FunctionPair(fontVariantCapsBase, fontVariantCapsValue),
FunctionPair(fontVariantLigaturesBase, fontVariantLigaturesValue),
FunctionPair(fontVariantNumericBase, fontVariantNumericValue),
FunctionPair(fontTextRenderingBase, fontTextRenderingValue),
FunctionPair(fontKerningBase, fontKerningValue),
FunctionPair(fontFontSmoothingBase, fontFontSmoothingValue),
FunctionPair(fontSizeBase, fontSizeValue),
FunctionPair(fontScriptBase, fontScriptValue)));
} // namespace blink
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