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<?php namespace YOOtheme\Theme; use YOOtheme\Config; use YOOtheme\ImageProvider; use YOOtheme\Url; use YOOtheme\View; use YOOtheme\View\HtmlElement; class ViewHelper implements ViewHelperInterface { // https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types public const REGEX_IMAGE = '#\.(avif\|gif\|a?png\|jpe?g\|svg\|webp)($\|\#.)#i'; public const REGEX_VIDEO = '#\.(mp4\|m4v\|ogv\|webm)($\|\#.)#i'; public const REGEX_VIMEO = '#(?:player\.)?vimeo\.com(?:/video)?/(\d+)#i'; public const REGEX_YOUTUBE = '#(?:youtube(-nocookie)?\.com/(?:[^/]+/.+/\|(?:v\|e(?:mbed)?\|shorts)/\|.[?&]v=)\|youtu\.be/)([^"&?/ ]{11})#i'; public const REGEX_YOUTUBE_SHORTS = '#youtube\.com/shorts/#i'; public const REGEX_PHOTOS = '#images.unsplash.com/\|images.pexels.com/photos/#i'; /* * @var ImageProvider / protected $image; /* * @var Config / protected $config; /* * Constructor. * * @param Config $config * @param ImageProvider $image / public function __construct(Config $config, ImageProvider $image) { $this->image = $image; $this->config = $config; } /* * Register helper. * * @param View $view / public function register($view) { // Loaders $view->addLoader(function ($name, $parameters, $next) { $content = $next($name, $parameters); // Apply to root template view only if (empty($parameters['_root'])) { return $content; } return $this->image->replace($content); }); // Functions $view->addFunction('social', [$this, 'social']); $view->addFunction('uid', [$this, 'uid']); $view->addFunction('iframeVideo', [$this, 'iframeVideo']); $view->addFunction('isYouTubeShorts', [$this, 'isYouTubeShorts']); $view->addFunction('isVideo', [$this, 'isVideo']); $view->addFunction('isImage', [$this, 'isImage']); $view->addFunction('image', [$this, 'image']); $view->addFunction('bgImage', [$this, 'bgImage']); $view->addFunction('parallaxOptions', [$this, 'parallaxOptions']); $view->addFunction('striptags', [$this, 'striptags']); $view->addFunction('margin', [$this, 'margin']); // Components $view['html']->addComponent('image', [$this, 'comImage']); } /* * @inheritdoc / public function social($link) { $link = strval($link); if (str_starts_with($link, 'mailto:')) { return 'mail'; } if (str_starts_with($link, 'tel:')) { return 'receiver'; } if (preg_match('#(google\|goo)\.(.+?)/maps(?>/?.+)?#i', $link)) { return 'location'; } $link = parse_url($link, PHP_URL_HOST); $link = explode( '.', str_replace( ['wa.me', 't.me', 'bsky.app'], ['whatsapp', 'telegram', 'bluesky'], $link ?? '', ), ); $icons = $this->config->get('theme.social_icons', []); return array_find($icons, fn($icon) => in_array($icon, $link)) ?: 'social'; } /* * @inheritdoc / public function iframeVideo($link, $params = [], $defaults = true) { $link = strval($link); $query = parse_url($link, PHP_URL_QUERY); if ($query) { parse_str($query, $_params); $params = array_merge($_params, $params); } if (preg_match(static::REGEX_VIMEO, $link, $matches)) { if (empty($params['controls'])) { $params['keyboard'] = 0; } return Url::to( "https://player.vimeo.com/video/{$matches[1]}", $defaults ? array_merge( [ 'loop' => 1, 'autoplay' => 1, 'autopause' => 0, 'controls' => 0, 'title' => 0, 'byline' => 0, 'setVolume' => 0, ], $params, ) : $params, ); } if (preg_match(static::REGEX_YOUTUBE, $link, $matches)) { if (!empty($params['loop'])) { $params['playlist'] = $matches[2]; } if (empty($params['controls'])) { $params['disablekb'] = 1; } return Url::to( "https://www.youtube{$matches[1]}.com/embed/{$matches[2]}", $defaults ? array_merge( [ 'rel' => 0, 'loop' => 1, 'playlist' => $matches[2], 'autoplay' => 1, 'controls' => 0, 'showinfo' => 0, 'iv_load_policy' => 3, 'modestbranding' => 1, 'wmode' => 'transparent', 'playsinline' => 1, ], $params, ) : $params, ); } return false; } /* * @inheritdoc / public function isYouTubeShorts($link) { return (bool) preg_match(static::REGEX_YOUTUBE_SHORTS, $link ?? ''); } /* * @inheritdoc / public function uid() { static $uid = 0; return $uid++; } /* * @inheritdoc / public function isVideo($link) { return $link && preg_match(static::REGEX_VIDEO, $link, $matches) ? $matches[1] : false; } /* * @inheritdoc / public function image($url, array $attrs = []) { $url = (array) $url; $path = array_shift($url); $isAbsolute = $this->isAbsolute($path); $type = $this->isImage($path); if (!empty($url['thumbnail']) && ($isAbsolute \|\| $type === 'gif')) { if (is_array($url['thumbnail'])) { [$width, $height] = $url['thumbnail']; $attrs['width'] = is_numeric($width) ? $width : null; $attrs['height'] = is_numeric($height) ? $height : null; } if ($attrs['width'] && $attrs['height']) { if (preg_match(static::REGEX_PHOTOS, $path)) { $path = self::buildPhotosUrl($path, $attrs['width'], $attrs['height']); } else { $this->addAttr( $attrs, 'style', "aspect-ratio: {$attrs['width']} / {$attrs['height']}", ); $this->addAttr($attrs, 'class', 'uk-object-cover'); } } } $attrs['src'] = !$isAbsolute && !in_array($type, ['gif', 'svg']) && !empty($url) ? parse_url($path, PHP_URL_PATH) . '#' . http_build_query( array_map( fn($value) => is_array($value) ? implode(',', $value) : $value, $url, ), '', '&', ) : $path; if (empty($attrs['alt'])) { $attrs['alt'] = true; } if ($type === 'svg' && (empty($attrs['width']) \|\| empty($attrs['height']))) { [$attrs['width'], $attrs['height']] = SvgHelper::getDimensions($path, $attrs); } // Deprecated YOOtheme Pro < v2.8.0 if (!empty($attrs['uk-img'])) { unset($attrs['uk-img']); } $attrs['loading'] = $attrs['loading'] ?? 'lazy' ?: 'eager'; return HtmlElement::tag('img', $attrs); } /* * @inheritdoc / public function bgImage($url, array $params = []) { $attrs = []; $isResized = $params['width'] \|\| $params['height']; $type = $this->isImage($url); $focalPoint = $this->parseFocalPoint($params['focal_point'] ?? ''); if (preg_match(static::REGEX_PHOTOS, $url)) { $url = $this->buildPhotosUrl($url, $params['width'], $params['height'], $focalPoint); } elseif ($type == 'svg' \|\| $this->isAbsolute($url)) { if ($isResized && !$params['size']) { $this->addAttr( $attrs, 'style', sprintf( 'background-size: %s %s;', $params['width'] ? "{$params['width']}px" : 'auto', $params['height'] ? "{$params['height']}px" : 'auto', ), ); if ($focalPoint) { $this->addAttr( $attrs, 'style', sprintf('background-position: %s;', implode(' ', $focalPoint)), ); } } } elseif ($type != 'gif') { $url = parse_url($url, PHP_URL_PATH) . '#srcset=1'; $url .= '&covers=' . ((int) ($params['size'] === 'cover')); if ($isResized) { $url .= '&thumbnail=' . join(',', [$params['width'], $params['height'], '', ...$focalPoint]); } } if ($image = $this->image->create($url, false)) { $minWidth = 0; if (empty($params['size'])) { $img = $image->apply($image->getAttribute('params')); $minWidth = $img->getWidth(); $this->addAttr( $attrs, 'style', sprintf('background-size: %spx %spx;', $img->getWidth(), $img->getHeight()), ); } $sources = $this->image->getSources($image, $minWidth); $srcsetAttrs = $this->image->getSrcsetAttrs($image, 'data-', $minWidth); if ($sources) { $srcsetAttrs = array_slice($srcsetAttrs, 0, 1); } $attrs = array_merge($attrs, $srcsetAttrs, [ 'data-sources' => json_encode($sources), ]); } else { $attrs['data-src'][] = Url::to($url); } // use eager loading? if (isset($params['loading'])) { $attrs['loading'] = $params['loading']; } $attrs['uk-img'] = true; $attrs['class'] = [ HtmlElement::expr( [ 'uk-background-norepeat', 'uk-background-{size}', 'uk-background-{position}', 'uk-background-image@{visibility}', 'uk-background-blend-{blend_mode}', 'uk-background-fixed{@effect: fixed}', ], $params, ), ]; $attrs['style'][] = $params['background'] ? "background-color: {$params['background']};" : ''; if ( ($params['effect'] ?? '') == 'parallax' && ($options = $this->parallaxOptions($params, '', ['bgx', 'bgy'])) ) { $attrs['uk-parallax'] = $options; } return $attrs; } /* * @param HtmlElement $element * @param array $params * * @return void / public function comImage($element, array $params = []) { $defaults = ['src' => '', 'width' => '', 'height' => '']; $attrs = array_merge($defaults, $element->attrs); $type = $this->isImage($attrs['src']); $isAbsolute = $this->isAbsolute($attrs['src']); if (empty($attrs['alt'])) { $attrs['alt'] = true; } if ($type !== 'svg') { if (!empty($attrs['thumbnail'])) { if (is_array($attrs['thumbnail'])) { $thumbnail = $attrs['thumbnail']; } else { $thumbnail = [$attrs['width'], $attrs['height']]; } $focalPoint = $this->parseFocalPoint($attrs['focal_point'] ?? ''); if ($isAbsolute \|\| $type === 'gif') { [$width, $height] = $thumbnail; if ($width && $height) { if (preg_match(static::REGEX_PHOTOS, $attrs['src'])) { $attrs['src'] = $this->buildPhotosUrl( $attrs['src'], $width, $height, $focalPoint, ); } else { $this->addAttr($attrs, 'style', "aspect-ratio: {$width} / {$height};"); $this->addAttr($attrs, 'class', 'uk-object-cover'); if ($focalPoint) { $this->addAttr( $attrs, 'style', sprintf('object-position: %s;', implode(' ', $focalPoint)), ); } } } elseif ($type === 'gif') { if ($imageObj = $this->image->create($attrs['src'], false)) { if ($width \|\| $height) { $imageObj = $imageObj->thumbnail($width, $height); } $attrs['width'] = $imageObj->getWidth(); $attrs['height'] = $imageObj->getHeight(); } } } else { $query['thumbnail'] = [...array_pad($thumbnail, 3, ''), ...$focalPoint]; $query['srcset'] = true; $attrs['width'] = $attrs['height'] = null; } } if (!empty($attrs['uk-cover'])) { $query['covers'] = true; } if ($type && $type !== 'gif' && !$isAbsolute && !empty($query)) { $attrs['src'] = parse_url($attrs['src'], PHP_URL_PATH) . '#' . http_build_query( array_map( fn($value) => is_array($value) ? join(',', $value) : $value, $query, ), '', '&', ); } unset($attrs['uk-svg']); } elseif (empty($attrs['width']) \|\| empty($attrs['height'])) { [$attrs['width'], $attrs['height']] = SvgHelper::getDimensions($attrs['src'], $attrs); } // use lazy loading? $attrs['loading'] = $attrs['loading'] ?? 'lazy' ?: 'eager'; unset($attrs['thumbnail']); unset($attrs['focal_point']); // update element $element->name = 'img'; $element->attrs = $attrs; } /* * @inheritdoc / public function isImage($link) { return $link && preg_match(static::REGEX_IMAGE, $link, $matches) ? $matches[1] : false; } /* * @inheritdoc / public function isAbsolute($url): bool { return $url && preg_match('/^(\/\|#\|[a-z0-9-.]+:)/', $url); } /* * @inheritdoc / public function parallaxOptions( $params, $prefix = '', $props = ['x', 'y', 'scale', 'rotate', 'opacity', 'blur', 'background'] ) { $prefix = "{$prefix}parallax_"; $filter = fn($value) => implode( ',', array_filter(explode(',', $value), fn($value) => '' !== trim($value)), ); $options = []; foreach ($props as $prop) { $value = $filter($params["{$prefix}{$prop}"] ?? ''); if ('' !== $value) { if ($prop === 'background') { $prop .= '-color'; } $options[] = "{$prop}: {$value}"; } } if (!$options) { return ''; } $options[] = sprintf( 'easing: %s', is_numeric($params["{$prefix}easing"] ?? '') ? $params["{$prefix}easing"] : 0, ); $options[] = !empty($params["{$prefix}breakpoint"]) ? "media: @{$params["{$prefix}breakpoint"]}" : ''; foreach (['target', 'start', 'end'] as $prop) { if (!empty($params[$prefix . $prop])) { $options[] = "{$prop}: {$params[$prefix . $prop]}"; } } return implode('; ', array_filter($options)); } /* * @inheritdoc / public function striptags( $str, $allowable_tags = '<div><h1><h2><h3><h4><h5><h6><p><ul><ol><li><img><svg><br><hr><span><strong><em><i><b><s><mark><sup><del>' ): string { return strip_tags(strval($str), $allowable_tags); } /* * @inheritdoc */ public function margin($margin): ?string { switch ($margin) { case '': return null; case 'default': return 'uk-margin-top'; default: return "uk-margin-{$margin}-top"; } } protected function addAttr(&$attrs, $name, $value): void { if (empty($attrs[$name])) { $attrs[$name] = []; } elseif (is_string($attrs[$name])) { $attrs[$name] = [$attrs[$name]]; } $attrs[$name][] = $value; } protected function buildPhotosUrl($url, $width, $height, $focalPoint = []): string { $url = parse_url($url); return "{$url['scheme']}://{$url['host']}{$url['path']}?" . http_build_query( [ 'fit' => 'crop', 'w' => $width, 'h' => $height, 'crop' => implode( ',', array_filter($focalPoint, fn($point) => $point && $point !== 'center'), ) ?: null, ], '', '&', ); } protected function parseFocalPoint(string $focalPoint): array { return array_reverse(array_filter(explode('-', $focalPoint))); } }

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