102 lines
2.9 KiB
PHP
102 lines
2.9 KiB
PHP
<?php
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namespace BookStack\Theming;
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use BookStack\Access\SocialDriverManager;
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use BookStack\Exceptions\ThemeException;
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use Illuminate\Console\Application;
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use Illuminate\Console\Application as Artisan;
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use Symfony\Component\Console\Command\Command;
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class ThemeService
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{
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/**
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* @var array<string, callable[]>
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*/
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protected array $listeners = [];
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/**
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* Get the currently configured theme.
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* Returns an empty string if not configured.
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*/
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public function getTheme(): string
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{
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return config('view.theme') ?? '';
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}
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/**
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* Listen to a given custom theme event,
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* setting up the action to be ran when the event occurs.
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*/
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public function listen(string $event, callable $action): void
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{
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if (!isset($this->listeners[$event])) {
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$this->listeners[$event] = [];
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}
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$this->listeners[$event][] = $action;
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}
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/**
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* Dispatch the given event name.
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* Runs any registered listeners for that event name,
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* passing all additional variables to the listener action.
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*
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* If a callback returns a non-null value, this method will
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* stop and return that value itself.
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*/
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public function dispatch(string $event, ...$args): mixed
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{
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foreach ($this->listeners[$event] ?? [] as $action) {
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$result = call_user_func_array($action, $args);
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if (!is_null($result)) {
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return $result;
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}
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}
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return null;
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}
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/**
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* Check if there are listeners registered for the given event name.
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*/
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public function hasListeners(string $event): bool
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{
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return count($this->listeners[$event] ?? []) > 0;
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}
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/**
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* Register a new custom artisan command to be available.
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*/
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public function registerCommand(Command $command): void
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{
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Artisan::starting(function (Application $application) use ($command) {
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$application->addCommands([$command]);
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});
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}
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/**
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* Read any actions from the set theme path if the 'functions.php' file exists.
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*/
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public function readThemeActions(): void
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{
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$themeActionsFile = theme_path('functions.php');
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if ($themeActionsFile && file_exists($themeActionsFile)) {
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try {
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require $themeActionsFile;
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} catch (\Error $exception) {
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throw new ThemeException("Failed loading theme functions file at \"{$themeActionsFile}\" with error: {$exception->getMessage()}");
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}
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}
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}
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/**
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* @see SocialDriverManager::addSocialDriver
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*/
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public function addSocialDriver(string $driverName, array $config, string $socialiteHandler, ?callable $configureForRedirect = null): void
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{
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$driverManager = app()->make(SocialDriverManager::class);
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$driverManager->addSocialDriver($driverName, $config, $socialiteHandler, $configureForRedirect);
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}
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}
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