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// Copyright 2019 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/native_theme/native_theme_win.h"
#include <cmath>
#include "base/time/time.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/color_palette.h"
namespace ui {
using ColorMode = ColorProviderKey::ColorMode;
using PrefScheme = NativeTheme::PreferredColorScheme;
using SystemThemeColor = NativeTheme::SystemThemeColor;
class TestNativeThemeWin : public NativeThemeWin {
public:
TestNativeThemeWin() : NativeThemeWin(false, false) {}
TestNativeThemeWin& operator=(const TestNativeThemeWin&) = delete;
~TestNativeThemeWin() override = default;
ColorMode GetColorMode() const {
return GetColorProviderKey(/*custom_theme=*/nullptr).color_mode;
}
// NativeTheme:
void SetSystemColor(SystemThemeColor system_color, SkColor color) {
system_colors_[system_color] = color;
}
};
TEST(NativeThemeWinTest, CalculatePreferredColorScheme) {
TestNativeThemeWin theme;
theme.set_forced_colors(false);
theme.set_use_dark_colors(true);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kDark);
theme.set_use_dark_colors(false);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kLight);
theme.set_forced_colors(true);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorBLACK);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kDark);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorWHITE);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kLight);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorBLUE);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kDark);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorYELLOW);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kLight);
theme.set_forced_colors(false);
EXPECT_EQ(theme.CalculatePreferredColorScheme(), PrefScheme::kLight);
}
TEST(NativeThemeWinTest, CalculatePreferredContrast) {
using PrefContrast = NativeTheme::PreferredContrast;
TestNativeThemeWin theme;
theme.set_forced_colors(false);
EXPECT_EQ(theme.CalculatePreferredContrast(), PrefContrast::kNoPreference);
theme.set_forced_colors(true);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorBLACK);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorWHITE);
EXPECT_EQ(theme.CalculatePreferredContrast(), PrefContrast::kMore);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorWHITE);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorBLACK);
EXPECT_EQ(theme.CalculatePreferredContrast(), PrefContrast::kMore);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorRED);
EXPECT_EQ(theme.CalculatePreferredContrast(), PrefContrast::kCustom);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorYELLOW);
EXPECT_EQ(theme.CalculatePreferredContrast(), PrefContrast::kLess);
theme.set_forced_colors(false);
EXPECT_EQ(theme.CalculatePreferredContrast(), PrefContrast::kNoPreference);
}
TEST(NativeThemeWinTest, GetDefaultSystemColorScheme) {
using ColorScheme = NativeTheme::ColorScheme;
TestNativeThemeWin theme;
theme.set_forced_colors(false);
theme.set_use_dark_colors(true);
EXPECT_EQ(theme.GetDefaultSystemColorScheme(), ColorScheme::kDark);
theme.set_use_dark_colors(false);
EXPECT_EQ(theme.GetDefaultSystemColorScheme(), ColorScheme::kLight);
theme.set_forced_colors(true);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorBLACK);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorWHITE);
EXPECT_EQ(theme.GetDefaultSystemColorScheme(),
ColorScheme::kPlatformHighContrast);
theme.SetSystemColor(SystemThemeColor::kWindow, SK_ColorWHITE);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorBLACK);
EXPECT_EQ(theme.GetDefaultSystemColorScheme(),
ColorScheme::kPlatformHighContrast);
theme.SetSystemColor(SystemThemeColor::kWindowText, SK_ColorBLUE);
EXPECT_EQ(theme.GetDefaultSystemColorScheme(),
ColorScheme::kPlatformHighContrast);
theme.set_forced_colors(false);
EXPECT_EQ(theme.GetDefaultSystemColorScheme(), ColorScheme::kLight);
}
TEST(NativeThemeWinTest, GetPlatformHighContrastColorScheme) {
using HCColorScheme = NativeTheme::PlatformHighContrastColorScheme;
TestNativeThemeWin theme;
theme.set_forced_colors(false);
theme.set_preferred_color_scheme(PrefScheme::kDark);
EXPECT_EQ(theme.GetPlatformHighContrastColorScheme(), HCColorScheme::kNone);
theme.set_preferred_color_scheme(PrefScheme::kLight);
EXPECT_EQ(theme.GetPlatformHighContrastColorScheme(), HCColorScheme::kNone);
theme.set_forced_colors(true);
theme.set_preferred_color_scheme(PrefScheme::kDark);
EXPECT_EQ(theme.GetPlatformHighContrastColorScheme(), HCColorScheme::kDark);
theme.set_preferred_color_scheme(PrefScheme::kLight);
EXPECT_EQ(theme.GetPlatformHighContrastColorScheme(), HCColorScheme::kLight);
theme.set_forced_colors(false);
EXPECT_EQ(theme.GetPlatformHighContrastColorScheme(), HCColorScheme::kNone);
}
TEST(NativeThemeWinTest, TestColorProviderKeyColorMode) {
TestNativeThemeWin theme;
theme.set_forced_colors(false);
theme.set_use_dark_colors(true);
EXPECT_EQ(theme.GetColorMode(), ColorMode::kDark);
theme.set_use_dark_colors(false);
EXPECT_EQ(theme.GetColorMode(), ColorMode::kLight);
theme.set_forced_colors(true);
theme.set_preferred_color_scheme(PrefScheme::kDark);
EXPECT_EQ(theme.GetColorMode(), ColorMode::kDark);
theme.set_preferred_color_scheme(PrefScheme::kLight);
EXPECT_EQ(theme.GetColorMode(), ColorMode::kLight);
}
TEST(NativeThemeWinTest, GetCaretBlinkInterval) {
TestNativeThemeWin theme;
static const size_t system_value = ::GetCaretBlinkTime();
base::TimeDelta actual_interval = theme.GetCaretBlinkInterval();
if (system_value == 0) {
// Uses default value when there is no system value.
EXPECT_EQ(base::Milliseconds(500), actual_interval);
} else if (system_value == INFINITY) {
// 0 is the value meaning "don't blink" in Chromium, while Windows uses
// INFINITY.
EXPECT_EQ(base::Milliseconds(0), actual_interval);
} else {
// Uses system value without modification.
EXPECT_EQ(base::Milliseconds(system_value), actual_interval);
}
// The setter overrides the system value or the default value.
base::TimeDelta new_interval = base::Milliseconds(42);
theme.set_caret_blink_interval(new_interval);
actual_interval = theme.GetCaretBlinkInterval();
EXPECT_EQ(new_interval, actual_interval);
}
} // namespace ui
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