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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, Filiph Sandström <filiph.sandstrom@filfatstudios.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <AK/QuickSort.h>
#include <LibCore/ConfigFile.h>
#include <LibCore/DirIterator.h>
#include <LibGfx/SystemTheme.h>
#include <string.h>
namespace Gfx {
static SystemTheme dummy_theme;
static SystemTheme const* theme_page = &dummy_theme;
static Core::AnonymousBuffer theme_buffer;
Core::AnonymousBuffer& current_system_theme_buffer()
{
VERIFY(theme_buffer.is_valid());
return theme_buffer;
}
void set_system_theme(Core::AnonymousBuffer buffer)
{
theme_buffer = move(buffer);
theme_page = theme_buffer.data<SystemTheme>();
}
Core::AnonymousBuffer load_system_theme(Core::ConfigFile const& file)
{
auto buffer = Core::AnonymousBuffer::create_with_size(sizeof(SystemTheme)).release_value();
auto* data = buffer.data<SystemTheme>();
auto get_color = [&](auto& name) {
auto color_string = file.read_entry("Colors", name);
auto color = Color::from_string(color_string);
if (!color.has_value())
return Color(Color::Black);
return color.value();
};
auto get_flag = [&](auto& name) {
return file.read_bool_entry("Flags", name, false);
};
auto get_alignment = [&](auto& name, auto role) {
auto alignment = file.read_entry("Alignments", name).to_lowercase();
if (alignment.is_empty()) {
switch (role) {
case (int)AlignmentRole::TitleAlignment:
return Gfx::TextAlignment::CenterLeft;
default:
dbgln("Alignment {} has no fallback value!", name);
return Gfx::TextAlignment::CenterLeft;
}
}
if (alignment == "left" || alignment == "centerleft")
return Gfx::TextAlignment::CenterLeft;
else if (alignment == "right" || alignment == "centerright")
return Gfx::TextAlignment::CenterRight;
else if (alignment == "center")
return Gfx::TextAlignment::Center;
dbgln("Alignment {} has an invalid value!", name);
return Gfx::TextAlignment::CenterLeft;
};
auto get_metric = [&](auto& name, auto role) {
int metric = file.read_num_entry("Metrics", name, -1);
if (metric == -1) {
switch (role) {
case (int)MetricRole::BorderThickness:
return 4;
case (int)MetricRole::BorderRadius:
return 0;
case (int)MetricRole::TitleHeight:
return 19;
case (int)MetricRole::TitleButtonHeight:
return 15;
case (int)MetricRole::TitleButtonWidth:
return 15;
default:
dbgln("Metric {} has no fallback value!", name);
return 16;
}
}
return metric;
};
auto get_path = [&](auto& name, auto role, bool allow_empty) {
auto path = file.read_entry("Paths", name);
if (path.is_empty()) {
switch (role) {
case (int)PathRole::TitleButtonIcons:
return "/res/icons/16x16/";
default:
return allow_empty ? "" : "/res/";
}
}
return &path[0];
};
#undef __ENUMERATE_COLOR_ROLE
#define __ENUMERATE_COLOR_ROLE(role) \
data->color[(int)ColorRole::role] = get_color(#role).value();
ENUMERATE_COLOR_ROLES(__ENUMERATE_COLOR_ROLE)
#undef __ENUMERATE_COLOR_ROLE
#undef __ENUMERATE_ALIGNMENT_ROLE
#define __ENUMERATE_ALIGNMENT_ROLE(role) \
data->alignment[(int)AlignmentRole::role] = get_alignment(#role, (int)AlignmentRole::role);
ENUMERATE_ALIGNMENT_ROLES(__ENUMERATE_ALIGNMENT_ROLE)
#undef __ENUMERATE_ALIGNMENT_ROLE
#undef __ENUMERATE_FLAG_ROLE
#define __ENUMERATE_FLAG_ROLE(role) \
data->flag[(int)FlagRole::role] = get_flag(#role);
ENUMERATE_FLAG_ROLES(__ENUMERATE_FLAG_ROLE)
#undef __ENUMERATE_FLAG_ROLE
#undef __ENUMERATE_METRIC_ROLE
#define __ENUMERATE_METRIC_ROLE(role) \
data->metric[(int)MetricRole::role] = get_metric(#role, (int)MetricRole::role);
ENUMERATE_METRIC_ROLES(__ENUMERATE_METRIC_ROLE)
#undef __ENUMERATE_METRIC_ROLE
#define ENCODE_PATH(x, allow_empty) \
do { \
auto path = get_path(#x, (int)PathRole::x, allow_empty); \
memcpy(data->path[(int)PathRole::x], path, min(strlen(path) + 1, sizeof(data->path[(int)PathRole::x]))); \
data->path[(int)PathRole::x][sizeof(data->path[(int)PathRole::x]) - 1] = '\0'; \
} while (0)
ENCODE_PATH(TitleButtonIcons, false);
ENCODE_PATH(ActiveWindowShadow, true);
ENCODE_PATH(InactiveWindowShadow, true);
ENCODE_PATH(TaskbarShadow, true);
ENCODE_PATH(MenuShadow, true);
ENCODE_PATH(TooltipShadow, true);
return buffer;
}
Core::AnonymousBuffer load_system_theme(String const& path)
{
return load_system_theme(Core::ConfigFile::open(path).release_value_but_fixme_should_propagate_errors());
}
Vector<SystemThemeMetaData> list_installed_system_themes()
{
Vector<SystemThemeMetaData> system_themes;
Core::DirIterator dt("/res/themes", Core::DirIterator::SkipDots);
while (dt.has_next()) {
auto theme_name = dt.next_path();
auto theme_path = String::formatted("/res/themes/{}", theme_name);
system_themes.append({ LexicalPath::title(theme_name), theme_path });
}
quick_sort(system_themes, [](auto& a, auto& b) { return a.name < b.name; });
return system_themes;
}
}
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