100 lines
2.5 KiB
PHP
100 lines
2.5 KiB
PHP
<?php
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namespace SilverStripe\Subsites\Service;
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use SilverStripe\Core\Config\Configurable;
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use SilverStripe\Core\Injector\Injectable;
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use SilverStripe\Subsites\Model\Subsite;
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use SilverStripe\View\SSViewer;
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class ThemeResolver
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{
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use Injectable;
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use Configurable;
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/**
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* Cascading definitions for themes, keyed by the name they should appear under in the CMS. For example:
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*
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* [
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* 'theme-1' => [
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* '$public',
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* 'starter',
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* '$default',
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* ],
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* 'theme-2' => [
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* 'custom',
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* 'watea',
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* 'starter',
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* '$public',
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* '$default',
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* ]
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* ]
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*
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* @config
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* @var null|array[]
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*/
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private static $theme_options;
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/**
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* Get the list of themes for the given sub site that can be given to SSViewer::set_themes
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*
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* @param Subsite $site
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* @return array
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*/
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public function getThemeList(Subsite $site)
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{
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$themes = array_values(SSViewer::get_themes() ?? []);
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$siteTheme = $site->Theme;
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if (!$siteTheme) {
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return $themes;
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}
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$customOptions = $this->config()->get('theme_options');
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if ($customOptions && isset($customOptions[$siteTheme])) {
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return $customOptions[$siteTheme];
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}
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// Ensure themes don't cascade "up" the list
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$index = array_search($siteTheme, $themes ?? []);
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if ($index > 0) {
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// 4.0 didn't have support for themes in the public webroot
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$constant = SSViewer::class . '::PUBLIC_THEME';
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$publicConstantDefined = defined($constant ?? '');
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// Check if the default is public themes
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$publicDefault = $publicConstantDefined && $themes[0] === SSViewer::PUBLIC_THEME;
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// Take only those that appear after theme chosen (non-inclusive)
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$themes = array_slice($themes ?? [], $index + 1);
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// Add back in public
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if ($publicDefault) {
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array_unshift($themes, SSViewer::PUBLIC_THEME);
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}
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}
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// Add our theme
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array_unshift($themes, $siteTheme);
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return $themes;
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}
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/**
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* Get a list of custom cascading theme definitions if available
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*
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* @return null|array
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*/
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public function getCustomThemeOptions()
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{
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$config = $this->config()->get('theme_options');
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if (!$config) {
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return null;
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}
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return array_keys($config ?? []);
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}
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}
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