fonts.php

<?php
namespace Bitrix\Landing\Hook\Page;
 
use Bitrix\Landing\Field;
use Bitrix\Landing\Manager;
use Bitrix\Main\Loader;
use Bitrix\Main\Localization\Loc;
use Bitrix\UI;
 
class Fonts extends \Bitrix\Landing\Hook\Page
{
    public const DEFAULT_FONTS = [
        'g-font-open-sans' => [
            'name' => 'Open Sans',
            'family' => '"Open Sans", Helvetica, Arial, sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=Open+Sans:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic',
        ],
        'g-font-roboto' => [
            'name' => 'Roboto',
            'family' => '"Roboto", Arial, sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=Roboto:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic,cyrillic-ext,latin-ext',
        ],
        'g-font-roboto-slab' => [
            'name' => 'Roboto Slab',
            'family' => '"Roboto Slab", Helvetica, Arial, sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic,cyrillic-ext,latin-ext',
        ],
        'g-font-montserrat' => [
            'name' => 'Montserrat',
            'family' => '"Montserrat", Helvetica, Arial, sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=Montserrat:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic',
        ],
        'g-font-alegreya-sans' => [
            'name' => 'Alegreya Sans',
            'family' => '"Alegreya Sans", sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=Alegreya+Sans:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic-ext,latin-ext',
        ],
        'g-font-cormorant-infant' => [
            'name' => 'Cormorant Infant',
            'family' => '"Cormorant Infant", serif',
            'url' => 'https://fonts.googleapis.com/css2?family=Cormorant+Infant:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic-ext,latin-ext',
        ],
        'g-font-pt-sans-caption' => [
            'name' => 'PT Sans Caption',
            'family' => '"PT Sans Caption", sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=PT+Sans+Caption:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic-ext,latin-ext',
        ],
        'g-font-pt-sans-narrow' => [
            'name' => 'PT Sans Narrow',
            'family' => '"PT Sans Narrow", sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=PT+Sans+Narrow:wght@100;200;300;400;500;600;700;800;900&PT+Sans:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic-ext,latin-ext',
        ],
        'g-font-pt-sans' => [
            'name' => 'PT Sans',
            'family' => '"PT Sans", sans-serif',
            'url' => 'https://fonts.googleapis.com/css2?family=PT+Sans:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic-ext,latin-ext',
        ],
        'g-font-lobster' => [
            'name' => 'Lobster',
            'family' => '"Lobster", cursive',
            'url' => 'https://fonts.googleapis.com/css2?family=Lobster:wght@100;200;300;400;500;600;700;800;900&subset=cyrillic-ext,latin-ext',
        ],
    ];
 
    protected static $setFonts = [];
 
    protected function getMap()
    {
        return [
            'CODE' => new Field\Textarea(
                'CODE', [
                'title' => Loc::getMessage('LNDNGHOOK_FONTS_FONT_BASE'),
            ]),
        ];
    }
 
    public function enabled()
    {
        return true;
    }
 
    public static function setFontCode(string $fontCode): void
    {
        if (!array_key_exists($fontCode, self::$setFonts))
        {
            self::$setFonts[$fontCode] = [];
        }
    }
 
    public function exec()
    {
        if (!self::$setFonts)
        {
            return;
        }
        // @fix for #101643
 
        $this->fields['CODE'] = str_replace(
            ['st yle', 'onl oad', 'li nk'],
            ['style', 'onload', 'link'],
            $this->fields['CODE']
        );
        $styleFound = preg_match_all(
            '#(<noscript>.*?<style.*?data-id="([^"]+)"[^>]*>[^<]+</style>)#is',
            $this->fields['CODE'],
            $matches
        );
 
        $fonts = [];
        if ($styleFound)
        {
            $fonts = array_combine($matches[2], $matches[1]);
        }
        $this->outputFonts($fonts);
    }
 
    protected function outputFonts(array $fonts): void
    {
        $setFonts = [];
 
        foreach (self::$setFonts as $fontCode => $foo)
        {
            if (isset($fonts[$fontCode]))
            {
                unset(self::$setFonts[$fontCode]);
                $setFonts[] = self::proxyFontUrl($fonts[$fontCode]);
            }
        }
 
        // set default fonts
        foreach (self::$setFonts as $fontCode => $foo)
        {
            $setFonts[] = self::outputDefaultFont($fontCode);
        }
 
        if ($setFonts)
        {
            Manager::setPageView(
                'BeforeHeadClose',
                implode('', $setFonts)
            );
        }
    }
 
    public static function outputDefaultFont(string $code): string
    {
        if (isset(self::DEFAULT_FONTS[$code]))
        {
            $fontUrl = self::DEFAULT_FONTS[$code]['url'];
            $fontUrl = self::proxyFontUrl($fontUrl);
 
            return '<link 
                        rel="preload" 
                        as="style" 
                        onload="this.removeAttribute(\'onload\');this.rel=\'stylesheet\'" 
                        data-font="' . $code . '" 
                        data-protected="true" 
                        href="' . $fontUrl . '">
                    <noscript>
                        <link
                            rel="stylesheet" 
                            data-font="' . $code . '" 
                            data-protected="true" 
                            href="' . $fontUrl . '">
                    </noscript>';
        }
 
        return '';
    }
 
    protected static function proxyFontUrl(string $fontString): string
    {
        $defaultDomain = 'fonts.googleapis.com';
        $proxyDomain = $defaultDomain;
        if (Loader::includeModule('ui'))
        {
            $proxyDomain = UI\Fonts\Proxy::resolveDomain(Manager::getZone());
        }
 
        return ($defaultDomain !== $proxyDomain)
            ? str_replace($defaultDomain, $proxyDomain, $fontString)
            : $fontString
        ;
    }
}