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<?php
/**
* @copyright Copyright (c) 2022 John Molakvoæ <skjnldsv@protonmail.com>
*
* @author John Molakvoæ <skjnldsv@protonmail.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Theming\Service;
use OCA\Theming\AppInfo\Application;
use OCA\Theming\ITheme;
use OCA\Theming\Themes\DarkHighContrastTheme;
use OCA\Theming\Themes\DarkTheme;
use OCA\Theming\Themes\DefaultTheme;
use OCA\Theming\Themes\DyslexiaFont;
use OCA\Theming\Themes\HighContrastTheme;
use OCA\Theming\Themes\LightTheme;
use OCP\IConfig;
use OCP\IUser;
use OCP\IUserSession;
class ThemesService {
private IUserSession $userSession;
private IConfig $config;
/** @var ITheme[] */
private array $themesProviders;
public function __construct(IUserSession $userSession,
IConfig $config,
DefaultTheme $defaultTheme,
LightTheme $lightTheme,
DarkTheme $darkTheme,
HighContrastTheme $highContrastTheme,
DarkHighContrastTheme $darkHighContrastTheme,
DyslexiaFont $dyslexiaFont) {
$this->userSession = $userSession;
$this->config = $config;
// Register themes
$this->themesProviders = [
$defaultTheme->getId() => $defaultTheme,
$lightTheme->getId() => $lightTheme,
$darkTheme->getId() => $darkTheme,
$highContrastTheme->getId() => $highContrastTheme,
$darkHighContrastTheme->getId() => $darkHighContrastTheme,
$dyslexiaFont->getId() => $dyslexiaFont,
];
}
/**
* Get the list of all registered themes
*
* @return ITheme[]
*/
public function getThemes(): array {
return $this->themesProviders;
}
/**
* Enable a theme for the logged-in user
*
* @param ITheme $theme the theme to enable
* @return string[] the enabled themes
*/
public function enableTheme(ITheme $theme): array {
$themesIds = $this->getEnabledThemes();
// If already enabled, ignore
if (in_array($theme->getId(), $themesIds)) {
return $themesIds;
}
/** @var ITheme[] */
$themes = array_map(function($themeId) {
return $this->getThemes()[$themeId];
}, $themesIds);
// Filtering all themes with the same type
$filteredThemes = array_filter($themes, function(ITheme $t) use ($theme) {
return $theme->getType() === $t->getType();
});
// Retrieve IDs only
/** @var string[] */
$filteredThemesIds = array_map(function(ITheme $t) {
return $t->getId();
}, array_values($filteredThemes));
$enabledThemes = array_merge(array_diff($themesIds, $filteredThemesIds), [$theme->getId()]);
$this->setEnabledThemes($enabledThemes);
return $enabledThemes;
}
/**
* Disable a theme for the logged-in user
*
* @param ITheme $theme the theme to disable
* @return string[] the enabled themes
*/
public function disableTheme(ITheme $theme): array {
$themesIds = $this->getEnabledThemes();
// If enabled, removing it
if (in_array($theme->getId(), $themesIds)) {
$enabledThemes = array_diff($themesIds, [$theme->getId()]);
$this->setEnabledThemes($enabledThemes);
return $enabledThemes;
}
return $themesIds;
}
/**
* Check whether a theme is enabled or not
* for the logged-in user
*
* @return bool
*/
public function isEnabled(ITheme $theme): bool {
$user = $this->userSession->getUser();
if ($user instanceof IUser) {
// Using keys as it's faster
$themes = $this->getEnabledThemes();
return in_array($theme->getId(), $themes);
}
return false;
}
/**
* Get the list of all enabled themes IDs
* for the logged-in user
*
* @return string[]
*/
public function getEnabledThemes(): array {
$user = $this->userSession->getUser();
if ($user === null) {
return [];
}
$enforcedTheme = $this->config->getSystemValueString('enforce_theme', '');
$enabledThemes = json_decode($this->config->getUserValue($user->getUID(), Application::APP_ID, 'enabled-themes', '[]'));
if ($enforcedTheme !== '') {
return array_merge([$enforcedTheme], $enabledThemes);
}
try {
return $enabledThemes;
} catch (\Exception $e) {
return [];
}
}
/**
* Set the list of enabled themes
* for the logged-in user
*
* @param string[] $themes the list of enabled themes IDs
*/
private function setEnabledThemes(array $themes): void {
$user = $this->userSession->getUser();
$this->config->setUserValue($user->getUID(), Application::APP_ID, 'enabled-themes', json_encode(array_values(array_unique($themes))));
}
}
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