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<?php |
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declare(strict_types=1); |
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namespace HexMakina\Marker; |
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class Element |
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{ |
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/** |
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* @var string[] |
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*/ |
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public const VOID_ELEMENTS = [ |
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'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', |
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'link', 'meta', 'param', 'source', 'track', 'wbr' |
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]; |
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/** |
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* @var string |
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*/ |
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public const FORMAT_VOID = '<%s%s/>'; |
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/** |
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* @var string |
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*/ |
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public const FORMAT_ELEMENT = '<%s%s>%s</%s>'; |
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/** |
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* @var string |
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*/ |
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public const FORMAT_ATTRIBUTES = '%s="%s"'; |
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protected string $tag; |
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protected array $attributes; |
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protected string $content; |
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/** |
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* ::span('inner text', ['class' => 'd-block']) |
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* ::p('lorem ipsum') |
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* ::img('alternative text', ['src' => 'path/to/img', 'width' => 100, 'height'=>100]) |
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* ::a('click here', ['href' => 'url/to/destination', 'class' => 'nav-link']) |
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* ::a('anchor title', ['name' => 'anchor_name']) |
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* |
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* @param mixed[] $arguments |
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*/ |
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public static function __callStatic(string $tag, array $arguments): Element |
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{ |
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// first argument is the inner text |
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$inner_text = $arguments[0] ?? null; |
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// second argument, an array for HTML attributes |
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$attributes = $arguments[1] ?? []; |
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return new Element($tag, $inner_text, $attributes); |
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} |
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/** |
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* @param mixed[] $attributes |
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*/ |
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public function __construct(string $tag, string $content = null, array $attributes = []) |
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{ |
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$this->tag = $tag; |
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$this->content = $content ?? ''; |
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$this->attributes = $attributes; |
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} |
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public function __toString(): string |
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{ |
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$attributes = self::attributesAsString($this->attributes); |
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if ($this->isVoid()) { |
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return sprintf( |
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self::FORMAT_VOID, |
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$this->tag, |
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$attributes, |
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); |
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} |
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return sprintf( |
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self::FORMAT_ELEMENT, |
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$this->tag, |
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$attributes, |
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$this->content, |
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$this->tag |
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); |
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} |
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public function isVoid(): bool |
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{ |
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return in_array($this->tag, self::VOID_ELEMENTS); |
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} |
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private static function isBooleanAttribute($k): bool |
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{ |
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return is_int($k); |
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} |
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private static function isValidValue($v): bool |
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{ |
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return !is_null($v) && $v != '' && !is_array($v); |
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} |
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public static function attributesAsString(array $attributes = []): string |
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{ |
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$ret = ''; |
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foreach ($attributes as $k => $v) { |
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if (self::isValidValue($v)) { |
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$ret .= ' ' . (self::isBooleanAttribute($k) ? $v : sprintf(self::FORMAT_ATTRIBUTES, $k, $v)); |
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} |
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} |
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return $ret; |
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} |
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} |
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HexMakina /
Marker
