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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gfx/platform_font_skia.h"
#include <string>
#include "base/check_op.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/notreached.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/font.h"
#include "ui/gfx/font_names_testing.h"
#include "ui/gfx/font_render_params.h"
#if BUILDFLAG(IS_WIN)
#include "ui/gfx/system_fonts_win.h"
#endif
#if BUILDFLAG(IS_LINUX)
#include "ui/linux/fake_linux_ui.h"
#endif
namespace gfx {
#if BUILDFLAG(IS_LINUX)
// Implementation of LinuxUi used to control the default font description.
class TestFontDelegate : public ui::FakeLinuxUi {
public:
TestFontDelegate() {
set_default_font_settings(FontSettings{
// Default values to be returned.
.family = "",
.size_pixels = 0,
.style = Font::NORMAL,
.weight = static_cast<int>(Font::Weight::NORMAL),
});
}
TestFontDelegate(const TestFontDelegate&) = delete;
TestFontDelegate& operator=(const TestFontDelegate&) = delete;
~TestFontDelegate() override = default;
void SetFontSettings(const FontSettings& font_settings,
const FontRenderParams& params) {
set_default_font_settings(font_settings);
params_ = params;
}
FontRenderParams GetDefaultFontRenderParams() override {
return params_;
NOTIMPLEMENTED();
return FontRenderParams();
}
private:
FontRenderParams params_;
};
class PlatformFontSkiaTest : public testing::Test {
public:
PlatformFontSkiaTest() = default;
PlatformFontSkiaTest(const PlatformFontSkiaTest&) = delete;
PlatformFontSkiaTest& operator=(const PlatformFontSkiaTest&) = delete;
~PlatformFontSkiaTest() override = default;
void SetUp() override {
DCHECK_EQ(ui::LinuxUi::instance(), nullptr);
old_linux_ui_ = ui::LinuxUi::SetInstance(&test_font_delegate_);
PlatformFontSkia::ReloadDefaultFont();
}
void TearDown() override {
DCHECK_EQ(&test_font_delegate_, ui::LinuxUi::instance());
ui::LinuxUi::SetInstance(old_linux_ui_);
PlatformFontSkia::ReloadDefaultFont();
}
protected:
TestFontDelegate test_font_delegate_;
raw_ptr<ui::LinuxUi> old_linux_ui_ = nullptr;
};
// Test that PlatformFontSkia's default constructor initializes the instance
// with the correct parameters.
TEST_F(PlatformFontSkiaTest, DefaultFont) {
FontRenderParams params;
params.antialiasing = false;
params.hinting = FontRenderParams::HINTING_FULL;
test_font_delegate_.SetFontSettings(
{
.family = kTestFontName,
.size_pixels = 13,
.style = Font::NORMAL,
.weight = static_cast<int>(gfx::Font::Weight::NORMAL),
},
params);
scoped_refptr<gfx::PlatformFontSkia> font(new gfx::PlatformFontSkia());
EXPECT_EQ(kTestFontName, font->GetFontName());
EXPECT_EQ(13, font->GetFontSize());
EXPECT_EQ(gfx::Font::NORMAL, font->GetStyle());
EXPECT_EQ(params.antialiasing, font->GetFontRenderParams().antialiasing);
EXPECT_EQ(params.hinting, font->GetFontRenderParams().hinting);
// Drop the old default font and check that new settings are loaded.
test_font_delegate_.SetFontSettings(
{
.family = kSymbolFontName,
.size_pixels = 15,
.style = Font::ITALIC,
.weight = static_cast<int>(gfx::Font::Weight::BOLD),
},
params);
PlatformFontSkia::ReloadDefaultFont();
scoped_refptr<gfx::PlatformFontSkia> font2(new gfx::PlatformFontSkia());
EXPECT_EQ(kSymbolFontName, font2->GetFontName());
EXPECT_EQ(15, font2->GetFontSize());
EXPECT_NE(font2->GetStyle() & Font::ITALIC, 0);
EXPECT_EQ(gfx::Font::Weight::BOLD, font2->GetWeight());
}
#endif // BUILDFLAG(IS_LINUX)
TEST(PlatformFontSkiaRenderParamsTest, DefaultFontRenderParams) {
scoped_refptr<PlatformFontSkia> default_font(new PlatformFontSkia());
scoped_refptr<PlatformFontSkia> named_font(new PlatformFontSkia(
default_font->GetFontName(), default_font->GetFontSize()));
// Ensures that both constructors are producing fonts with the same render
// params.
EXPECT_EQ(default_font->GetFontRenderParams(),
named_font->GetFontRenderParams());
}
#if BUILDFLAG(IS_WIN)
TEST(PlatformFontSkiaOnWindowsTest, SystemFont) {
// Ensures that the font styles are kept while creating the default font.
gfx::Font system_font = win::GetDefaultSystemFont();
gfx::Font default_font;
EXPECT_EQ(system_font.GetFontName(), default_font.GetFontName());
EXPECT_EQ(system_font.GetFontSize(), default_font.GetFontSize());
EXPECT_EQ(system_font.GetStyle(), default_font.GetStyle());
EXPECT_EQ(system_font.GetWeight(), default_font.GetWeight());
EXPECT_EQ(system_font.GetHeight(), default_font.GetHeight());
EXPECT_EQ(system_font.GetBaseline(), default_font.GetBaseline());
EXPECT_EQ(system_font.GetBaseline(), default_font.GetBaseline());
EXPECT_EQ(system_font.GetFontRenderParams(),
default_font.GetFontRenderParams());
}
#endif // BUILDFLAG(IS_WIN)
} // namespace gfx
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