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<?php |
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namespace Cohensive\OEmbed; |
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class HtmlBuilder |
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{ |
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const TYPE_RAW = 'raw'; |
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const TYPE_IFRAME = 'iframe'; |
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const TYPE_VIDEO = 'video'; |
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public function __construct( |
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protected string $type, |
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protected string|array $html, |
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protected ?string $script = null |
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) { |
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} |
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/** |
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* Returns current type. |
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*/ |
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public function type(): string |
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{ |
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return $this->type; |
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} |
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/** |
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* Returns HTML code for media provider. |
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*/ |
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public function html(array $options = [], array $globalOptions = [], bool $amp = false): string |
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{ |
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if (is_array($this->html)) { |
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$attrs = $this->applyOptions($this->html, $options, $globalOptions); |
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if ($this->type === self::TYPE_IFRAME) { |
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return $this->iframe($attrs, $amp); |
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} |
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if ($this->type === self::TYPE_VIDEO) { |
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return $this->video($attrs, $amp); |
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} |
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return ''; |
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} else { |
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return $this->html; |
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} |
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} |
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/** |
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* Return AMP-friendly HTML for media provider. |
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*/ |
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public function ampHtml(array $options = [], array $globalOptions = []): string |
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{ |
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return $this->html($options, $globalOptions, true); |
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} |
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/** |
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* Returns URL for a given media provider embed. Returned url type depends on embed type: |
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* iframe - string |
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* video - string[] |
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* raw - null |
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*/ |
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public function src(array $options = [], array $globalOptions = []): mixed |
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{ |
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if (is_array($this->html)) { |
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$attrs = $this->applyOptions($this->html, $options, $globalOptions); |
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if ($this->type === self::TYPE_IFRAME) { |
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return $attrs['src'] ?? null; |
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} |
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if ($this->type === self::TYPE_VIDEO) { |
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return array_map(function ($source) { |
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return $source['src']; |
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}, $attrs['source']); |
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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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* Constructs <iframe> HTML-element based on array of provider attributes. |
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*/ |
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protected function iframe(array $attrs, bool $amp = false): string |
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{ |
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$tag = $amp ? 'amp-iframe' : 'iframe'; |
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$html = "<$tag"; |
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foreach ($attrs as $attr => $val) { |
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$html .= sprintf(' %s="%s"', $attr, $val); |
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} |
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$html .= "></$tag>"; |
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return $html; |
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} |
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/** |
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* Constructs <video> HTML-element based on an array of provider attributes. |
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*/ |
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protected function video(array $attrs, bool $amp = false): string |
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{ |
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$tag = $amp ? 'amp-video' : 'video'; |
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$inner = ''; |
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$html = "<$tag"; |
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foreach ($attrs as $attr => $val) { |
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if (is_array($val)) { |
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foreach ($val as $child) { |
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$inner .= "<$attr"; |
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foreach ($child as $iattr => $ival) { |
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$inner .= sprintf(' %s="%s"', $iattr, $ival); |
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} |
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$inner .= ">"; |
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} |
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} else { |
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$html .= sprintf(' %s="%s"', $attr, $val); |
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} |
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} |
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$html .= ">"; |
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$html .= $inner; |
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$html .= "</$tag>"; |
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return $html; |
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} |
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/** |
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* Returns script source if available. |
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*/ |
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public function script(): ?string |
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{ |
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return $this->script; |
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} |
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/** |
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* Converts class to an array. |
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*/ |
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public function toArray(): array |
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{ |
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return [ |
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'type' => $this->type, |
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'html' => $this->html, |
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]; |
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} |
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/** |
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* Extracts and returns an array of options for a current HTML element type. |
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*/ |
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protected function getTypeOptions(array $options): array |
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{ |
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if (isset($options['html'])) { |
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return $options['html'][$this->type] ?? []; |
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} |
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return []; |
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} |
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/** |
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* Merge and apply local and global options to the provider attributes. |
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*/ |
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protected function applyOptions(array $attrs, array $options, array $globalOptions): array |
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{ |
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$options = array_merge($globalOptions['attributes'] ?? [], $options); |
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$width = $options['width'] ?? null; |
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$height = $options['height'] ?? null; |
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if (isset($attrs['width']) && isset($attrs['height'])) { |
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$ratio = $attrs['width'] / $attrs['height']; |
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$attrs['width'] = $width ?: round(($height ?: $attrs['height']) * $ratio); |
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$attrs['height'] = $height ?: round($attrs['width'] / $ratio); |
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} |
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$typeOptions = $this->getTypeOptions($globalOptions); |
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if ($options['autoplay'] ?? false) { |
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$attrs['autoplay'] = $options['autoplay']; |
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// We can remove autoplay option if type is "iframe" after we change "src" attribute. |
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if ($this->type === self::TYPE_IFRAME) { |
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$attrs['src'] = $this->addUrlParam($attrs['src'], sprintf('%s=%s', 'autoplay', $attrs['autoplay'])); |
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unset($options['autoplay']); |
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unset($attrs['autoplay']); |
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} |
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} |
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return array_filter( |
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array_merge($typeOptions, $options, $attrs), |
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function ($v) { |
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return $v !== null; |
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} |
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); |
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} |
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/** |
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* Append custom parameter to the end of the url. |
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*/ |
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protected function addUrlParam(string $url, string $param): string |
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{ |
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$operator = strpos($url, '?') >= 0 ? '&' : '?'; |
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return $url . $operator . $param; |
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} |
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} |
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KaneCohen /
oembed
