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/*
* Copyright (C) 2015, 2020 Igalia S.L.
* Copyright (C) 2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ThemeAdwaita.h"
#if USE(THEME_ADWAITA)
#include "Adwaita.h"
#include "Color.h"
#include "FontCascade.h"
#include "LengthSize.h"
#include <wtf/NeverDestroyed.h>
#if PLATFORM(GTK) || PLATFORM(WPE)
#include "SystemSettings.h"
#endif
namespace WebCore {
using namespace WebCore::Adwaita;
Theme& Theme::singleton()
{
static NeverDestroyed<ThemeAdwaita> theme;
return theme;
}
ThemeAdwaita::ThemeAdwaita()
{
#if PLATFORM(GTK) || PLATFORM(WPE)
refreshSettings();
// Note that Theme is NeverDestroy'd so the destructor will never be called to disconnect this.
SystemSettings::singleton().addObserver([this](const SystemSettings::State& state) mutable {
if (state.enableAnimations || state.themeName)
this->refreshSettings();
}, this);
#endif // PLATFORM(GTK) || PLATFORM(WPE)
}
#if PLATFORM(GTK) || PLATFORM(WPE)
void ThemeAdwaita::refreshSettings()
{
if (auto enableAnimations = SystemSettings::singleton().enableAnimations())
m_prefersReducedMotion = !enableAnimations.value();
// For high contrast in GTK3 we can rely on the theme name and be accurate most of the time.
// However whether or not high-contrast is enabled is also stored in GSettings/xdg-desktop-portal.
// We could rely on libadwaita, dynamically, to re-use its logic.
#if PLATFORM(GTK) && !USE(GTK4)
if (auto themeName = SystemSettings::singleton().themeName())
m_prefersContrast = themeName == "HighContrast"_s || themeName == "HighContrastInverse"_s;
#endif // PLATFORM(GTK) && !USE(GTK4)
}
#endif // PLATFORM(GTK) || PLATFORM(WPE)
void ThemeAdwaita::setAccentColor(const Color& color)
{
if (m_accentColor == color)
return;
m_accentColor = color;
platformColorsDidChange();
}
Color ThemeAdwaita::accentColor()
{
return m_accentColor;
}
bool ThemeAdwaita::userPrefersContrast() const
{
#if !USE(GTK4)
return m_prefersContrast;
#else
return false;
#endif
}
bool ThemeAdwaita::userPrefersReducedMotion() const
{
return m_prefersReducedMotion;
}
} // namespace WebCore
#endif // USE(THEME_ADWAITA)
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