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ArrayHash.php	1.788KB	edt ren
ArrayList.php	2.569KB	edt ren
Arrays.php	10.585KB	edt ren
Callback.php	4.697KB	edt ren
DateTime.php	3.226KB	edt ren
FileSystem.php	7.267KB	edt ren
Floats.php	2.07KB	edt ren
Helpers.php	2.036KB	edt ren
Html.php	20.142KB	edt ren
Image.php	21.385KB	edt ren
Json.php	1.533KB	edt ren
ObjectHelpers.php	6.863KB	edt ren
ObjectMixin.php	0.9KB	edt ren
Paginator.php	4.137KB	edt ren
Random.php	1.05KB	edt ren
Reflection.php	11.62KB	edt ren
Strings.php	18.264KB	edt ren
Type.php	6.035KB	edt ren
Validators.php	9.223KB	edt ren
exceptions.php	1.175KB	edt ren

<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Utils;

use Nette;
use Nette\HtmlStringable;
use function is_array, is_float, is_object, is_string;

/**
 * HTML helper.
 *
 * @property string|null $accept
 * @property string|null $accesskey
 * @property string|null $action
 * @property string|null $align
 * @property string|null $allow
 * @property string|null $alt
 * @property bool|null   $async
 * @property string|null $autocapitalize
 * @property string|null $autocomplete
 * @property bool|null   $autofocus
 * @property bool|null   $autoplay
 * @property string|null $charset
 * @property bool|null   $checked
 * @property string|null $cite
 * @property string|null $class
 * @property int|null    $cols
 * @property int|null    $colspan
 * @property string|null $content
 * @property bool|null   $contenteditable
 * @property bool|null   $controls
 * @property string|null $coords
 * @property string|null $crossorigin
 * @property string|null $data
 * @property string|null $datetime
 * @property string|null $decoding
 * @property bool|null   $default
 * @property bool|null   $defer
 * @property string|null $dir
 * @property string|null $dirname
 * @property bool|null   $disabled
 * @property bool|null   $download
 * @property string|null $draggable
 * @property string|null $dropzone
 * @property string|null $enctype
 * @property string|null $for
 * @property string|null $form
 * @property string|null $formaction
 * @property string|null $formenctype
 * @property string|null $formmethod
 * @property bool|null   $formnovalidate
 * @property string|null $formtarget
 * @property string|null $headers
 * @property int|null    $height
 * @property bool|null   $hidden
 * @property float|null  $high
 * @property string|null $href
 * @property string|null $hreflang
 * @property string|null $id
 * @property string|null $integrity
 * @property string|null $inputmode
 * @property bool|null   $ismap
 * @property string|null $itemprop
 * @property string|null $kind
 * @property string|null $label
 * @property string|null $lang
 * @property string|null $list
 * @property bool|null   $loop
 * @property float|null  $low
 * @property float|null  $max
 * @property int|null    $maxlength
 * @property int|null    $minlength
 * @property string|null $media
 * @property string|null $method
 * @property float|null  $min
 * @property bool|null   $multiple
 * @property bool|null   $muted
 * @property string|null $name
 * @property bool|null   $novalidate
 * @property bool|null   $open
 * @property float|null  $optimum
 * @property string|null $pattern
 * @property string|null $ping
 * @property string|null $placeholder
 * @property string|null $poster
 * @property string|null $preload
 * @property string|null $radiogroup
 * @property bool|null   $readonly
 * @property string|null $rel
 * @property bool|null   $required
 * @property bool|null   $reversed
 * @property int|null    $rows
 * @property int|null    $rowspan
 * @property string|null $sandbox
 * @property string|null $scope
 * @property bool|null   $selected
 * @property string|null $shape
 * @property int|null    $size
 * @property string|null $sizes
 * @property string|null $slot
 * @property int|null    $span
 * @property string|null $spellcheck
 * @property string|null $src
 * @property string|null $srcdoc
 * @property string|null $srclang
 * @property string|null $srcset
 * @property int|null    $start
 * @property float|null  $step
 * @property string|null $style
 * @property int|null    $tabindex
 * @property string|null $target
 * @property string|null $title
 * @property string|null $translate
 * @property string|null $type
 * @property string|null $usemap
 * @property string|null $value
 * @property int|null    $width
 * @property string|null $wrap
 *
 * @method self accept(?string $val)
 * @method self accesskey(?string $val, bool $state = null)
 * @method self action(?string $val)
 * @method self align(?string $val)
 * @method self allow(?string $val, bool $state = null)
 * @method self alt(?string $val)
 * @method self async(?bool $val)
 * @method self autocapitalize(?string $val)
 * @method self autocomplete(?string $val)
 * @method self autofocus(?bool $val)
 * @method self autoplay(?bool $val)
 * @method self charset(?string $val)
 * @method self checked(?bool $val)
 * @method self cite(?string $val)
 * @method self class(?string $val, bool $state = null)
 * @method self cols(?int $val)
 * @method self colspan(?int $val)
 * @method self content(?string $val)
 * @method self contenteditable(?bool $val)
 * @method self controls(?bool $val)
 * @method self coords(?string $val)
 * @method self crossorigin(?string $val)
 * @method self datetime(?string $val)
 * @method self decoding(?string $val)
 * @method self default(?bool $val)
 * @method self defer(?bool $val)
 * @method self dir(?string $val)
 * @method self dirname(?string $val)
 * @method self disabled(?bool $val)
 * @method self download(?bool $val)
 * @method self draggable(?string $val)
 * @method self dropzone(?string $val)
 * @method self enctype(?string $val)
 * @method self for(?string $val)
 * @method self form(?string $val)
 * @method self formaction(?string $val)
 * @method self formenctype(?string $val)
 * @method self formmethod(?string $val)
 * @method self formnovalidate(?bool $val)
 * @method self formtarget(?string $val)
 * @method self headers(?string $val, bool $state = null)
 * @method self height(?int $val)
 * @method self hidden(?bool $val)
 * @method self high(?float $val)
 * @method self hreflang(?string $val)
 * @method self id(?string $val)
 * @method self integrity(?string $val)
 * @method self inputmode(?string $val)
 * @method self ismap(?bool $val)
 * @method self itemprop(?string $val)
 * @method self kind(?string $val)
 * @method self label(?string $val)
 * @method self lang(?string $val)
 * @method self list(?string $val)
 * @method self loop(?bool $val)
 * @method self low(?float $val)
 * @method self max(?float $val)
 * @method self maxlength(?int $val)
 * @method self minlength(?int $val)
 * @method self media(?string $val)
 * @method self method(?string $val)
 * @method self min(?float $val)
 * @method self multiple(?bool $val)
 * @method self muted(?bool $val)
 * @method self name(?string $val)
 * @method self novalidate(?bool $val)
 * @method self open(?bool $val)
 * @method self optimum(?float $val)
 * @method self pattern(?string $val)
 * @method self ping(?string $val, bool $state = null)
 * @method self placeholder(?string $val)
 * @method self poster(?string $val)
 * @method self preload(?string $val)
 * @method self radiogroup(?string $val)
 * @method self readonly(?bool $val)
 * @method self rel(?string $val)
 * @method self required(?bool $val)
 * @method self reversed(?bool $val)
 * @method self rows(?int $val)
 * @method self rowspan(?int $val)
 * @method self sandbox(?string $val, bool $state = null)
 * @method self scope(?string $val)
 * @method self selected(?bool $val)
 * @method self shape(?string $val)
 * @method self size(?int $val)
 * @method self sizes(?string $val)
 * @method self slot(?string $val)
 * @method self span(?int $val)
 * @method self spellcheck(?string $val)
 * @method self src(?string $val)
 * @method self srcdoc(?string $val)
 * @method self srclang(?string $val)
 * @method self srcset(?string $val)
 * @method self start(?int $val)
 * @method self step(?float $val)
 * @method self style(?string $property, string $val = null)
 * @method self tabindex(?int $val)
 * @method self target(?string $val)
 * @method self title(?string $val)
 * @method self translate(?string $val)
 * @method self type(?string $val)
 * @method self usemap(?string $val)
 * @method self value(?string $val)
 * @method self width(?int $val)
 * @method self wrap(?string $val)
 */
class Html implements \ArrayAccess, \Countable, \IteratorAggregate, HtmlStringable
{
	use Nette\SmartObject;

/** @var array<string, mixed>  element's attributes */
	public $attrs = [];

/** @var bool  use XHTML syntax? */
	public static $xhtml = false;

/** @var array<string, int>  void elements */
	public static $emptyElements = [
		'img' => 1, 'hr' => 1, 'br' => 1, 'input' => 1, 'meta' => 1, 'area' => 1, 'embed' => 1, 'keygen' => 1,
		'source' => 1, 'base' => 1, 'col' => 1, 'link' => 1, 'param' => 1, 'basefont' => 1, 'frame' => 1,
		'isindex' => 1, 'wbr' => 1, 'command' => 1, 'track' => 1,
	];

/** @var array<int, HtmlStringable|string> nodes */
	protected $children = [];

/** @var string  element's name */
	private $name;

/** @var bool  is element empty? */
	private $isEmpty;

/**
	 * Constructs new HTML element.
	 * @param  array|string $attrs element's attributes or plain text content
	 * @return static
	 */
	public static function el(?string $name = null, $attrs = null)
	{
		$el = new static;
		$parts = explode(' ', (string) $name, 2);
		$el->setName($parts[0]);

if (is_array($attrs)) {
			$el->attrs = $attrs;

} elseif ($attrs !== null) {
			$el->setText($attrs);
		}

if (isset($parts[1])) {
			foreach (Strings::matchAll($parts[1] . ' ', '#([a-z0-9:-]+)(?:=(["\'])?(.*?)(?(2)\2|\s))?#i') as $m) {
				$el->attrs[$m[1]] = $m[3] ?? true;
			}
		}

return $el;
	}

/**
	 * Returns an object representing HTML text.
	 */
	public static function fromHtml(string $html): self
	{
		return (new static)->setHtml($html);
	}

/**
	 * Returns an object representing plain text.
	 */
	public static function fromText(string $text): self
	{
		return (new static)->setText($text);
	}

/**
	 * Converts to HTML.
	 */
	final public function toHtml(): string
	{
		return $this->render();
	}

/**
	 * Converts to plain text.
	 */
	final public function toText(): string
	{
		return $this->getText();
	}

/**
	 * Converts given HTML code to plain text.
	 */
	public static function htmlToText(string $html): string
	{
		return html_entity_decode(strip_tags($html), ENT_QUOTES | ENT_HTML5, 'UTF-8');
	}

/**
	 * Changes element's name.
	 * @return static
	 */
	final public function setName(string $name, ?bool $isEmpty = null)
	{
		$this->name = $name;
		$this->isEmpty = $isEmpty ?? isset(static::$emptyElements[$name]);
		return $this;
	}

/**
	 * Returns element's name.
	 */
	final public function getName(): string
	{
		return $this->name;
	}

/**
	 * Is element empty?
	 */
	final public function isEmpty(): bool
	{
		return $this->isEmpty;
	}

/**
	 * Sets multiple attributes.
	 * @return static
	 */
	public function addAttributes(array $attrs)
	{
		$this->attrs = array_merge($this->attrs, $attrs);
		return $this;
	}

/**
	 * Appends value to element's attribute.
	 * @param  mixed  $value
	 * @param  mixed  $option
	 * @return static
	 */
	public function appendAttribute(string $name, $value, $option = true)
	{
		if (is_array($value)) {
			$prev = isset($this->attrs[$name]) ? (array) $this->attrs[$name] : [];
			$this->attrs[$name] = $value + $prev;

} elseif ((string) $value === '') {
			$tmp = &$this->attrs[$name]; // appending empty value? -> ignore, but ensure it exists

} elseif (!isset($this->attrs[$name]) || is_array($this->attrs[$name])) { // needs array
			$this->attrs[$name][$value] = $option;

} else {
			$this->attrs[$name] = [$this->attrs[$name] => true, $value => $option];
		}

return $this;
	}

/**
	 * Sets element's attribute.
	 * @param  mixed  $value
	 * @return static
	 */
	public function setAttribute(string $name, $value)
	{
		$this->attrs[$name] = $value;
		return $this;
	}

/**
	 * Returns element's attribute.
	 * @return mixed
	 */
	public function getAttribute(string $name)
	{
		return $this->attrs[$name] ?? null;
	}

/**
	 * Unsets element's attribute.
	 * @return static
	 */
	public function removeAttribute(string $name)
	{
		unset($this->attrs[$name]);
		return $this;
	}

/**
	 * Unsets element's attributes.
	 * @return static
	 */
	public function removeAttributes(array $attributes)
	{
		foreach ($attributes as $name) {
			unset($this->attrs[$name]);
		}

return $this;
	}

/**
	 * Overloaded setter for element's attribute.
	 * @param  mixed  $value
	 */
	final public function __set(string $name, $value): void
	{
		$this->attrs[$name] = $value;
	}

/**
	 * Overloaded getter for element's attribute.
	 * @return mixed
	 */
	final public function &__get(string $name)
	{
		return $this->attrs[$name];
	}

/**
	 * Overloaded tester for element's attribute.
	 */
	final public function __isset(string $name): bool
	{
		return isset($this->attrs[$name]);
	}

/**
	 * Overloaded unsetter for element's attribute.
	 */
	final public function __unset(string $name): void
	{
		unset($this->attrs[$name]);
	}

/**
	 * Overloaded setter for element's attribute.
	 * @return mixed
	 */
	final public function __call(string $m, array $args)
	{
		$p = substr($m, 0, 3);
		if ($p === 'get' || $p === 'set' || $p === 'add') {
			$m = substr($m, 3);
			$m[0] = $m[0] | "\x20";
			if ($p === 'get') {
				return $this->attrs[$m] ?? null;

} elseif ($p === 'add') {
				$args[] = true;
			}
		}

if (count($args) === 0) { // invalid

} elseif (count($args) === 1) { // set
			$this->attrs[$m] = $args[0];

} else { // add
			$this->appendAttribute($m, $args[0], $args[1]);
		}

return $this;
	}

/**
	 * Special setter for element's attribute.
	 * @return static
	 */
	final public function href(string $path, ?array $query = null)
	{
		if ($query) {
			$query = http_build_query($query, '', '&');
			if ($query !== '') {
				$path .= '?' . $query;
			}
		}

$this->attrs['href'] = $path;
		return $this;
	}

/**
	 * Setter for data-* attributes. Booleans are converted to 'true' resp. 'false'.
	 * @param  mixed  $value
	 * @return static
	 */
	public function data(string $name, $value = null)
	{
		if (func_num_args() === 1) {
			$this->attrs['data'] = $name;
		} else {
			$this->attrs["data-$name"] = is_bool($value)
				? json_encode($value)
				: $value;
		}

return $this;
	}

/**
	 * Sets element's HTML content.
	 * @param  HtmlStringable|string  $html
	 * @return static
	 */
	final public function setHtml($html)
	{
		$this->children = [(string) $html];
		return $this;
	}

/**
	 * Returns element's HTML content.
	 */
	final public function getHtml(): string
	{
		return implode('', $this->children);
	}

/**
	 * Sets element's textual content.
	 * @param  HtmlStringable|string|int|float  $text
	 * @return static
	 */
	final public function setText($text)
	{
		if (!$text instanceof HtmlStringable) {
			$text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8');
		}

$this->children = [(string) $text];
		return $this;
	}

/**
	 * Returns element's textual content.
	 */
	final public function getText(): string
	{
		return self::htmlToText($this->getHtml());
	}

/**
	 * Adds new element's child.
	 * @param  HtmlStringable|string  $child  Html node or raw HTML string
	 * @return static
	 */
	final public function addHtml($child)
	{
		return $this->insert(null, $child);
	}

/**
	 * Appends plain-text string to element content.
	 * @param  HtmlStringable|string|int|float  $text
	 * @return static
	 */
	public function addText($text)
	{
		if (!$text instanceof HtmlStringable) {
			$text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8');
		}

return $this->insert(null, $text);
	}

/**
	 * Creates and adds a new Html child.
	 * @param  array|string $attrs  element's attributes or raw HTML string
	 * @return static  created element
	 */
	final public function create(string $name, $attrs = null)
	{
		$this->insert(null, $child = static::el($name, $attrs));
		return $child;
	}

/**
	 * Inserts child node.
	 * @param  HtmlStringable|string $child Html node or raw HTML string
	 * @return static
	 */
	public function insert(?int $index, $child, bool $replace = false)
	{
		$child = $child instanceof self ? $child : (string) $child;
		if ($index === null) { // append
			$this->children[] = $child;

} else { // insert or replace
			array_splice($this->children, $index, $replace ? 1 : 0, [$child]);
		}

return $this;
	}

/**
	 * Inserts (replaces) child node (\ArrayAccess implementation).
	 * @param  int|null  $index  position or null for appending
	 * @param  Html|string  $child  Html node or raw HTML string
	 */
	final public function offsetSet($index, $child): void
	{
		$this->insert($index, $child, true);
	}

/**
	 * Returns child node (\ArrayAccess implementation).
	 * @param  int  $index
	 * @return HtmlStringable|string
	 */
	#[\ReturnTypeWillChange]
	final public function offsetGet($index)
	{
		return $this->children[$index];
	}

/**
	 * Exists child node? (\ArrayAccess implementation).
	 * @param  int  $index
	 */
	final public function offsetExists($index): bool
	{
		return isset($this->children[$index]);
	}

/**
	 * Removes child node (\ArrayAccess implementation).
	 * @param  int  $index
	 */
	public function offsetUnset($index): void
	{
		if (isset($this->children[$index])) {
			array_splice($this->children, $index, 1);
		}
	}

/**
	 * Returns children count.
	 */
	final public function count(): int
	{
		return count($this->children);
	}

/**
	 * Removes all children.
	 */
	public function removeChildren(): void
	{
		$this->children = [];
	}

/**
	 * Iterates over elements.
	 * @return \ArrayIterator<int, HtmlStringable|string>
	 */
	final public function getIterator(): \ArrayIterator
	{
		return new \ArrayIterator($this->children);
	}

/**
	 * Returns all children.
	 */
	final public function getChildren(): array
	{
		return $this->children;
	}

/**
	 * Renders element's start tag, content and end tag.
	 */
	final public function render(?int $indent = null): string
	{
		$s = $this->startTag();

if (!$this->isEmpty) {
			// add content
			if ($indent !== null) {
				$indent++;
			}

foreach ($this->children as $child) {
				if ($child instanceof self) {
					$s .= $child->render($indent);
				} else {
					$s .= $child;
				}
			}

// add end tag
			$s .= $this->endTag();
		}

if ($indent !== null) {
			return "\n" . str_repeat("\t", $indent - 1) . $s . "\n" . str_repeat("\t", max(0, $indent - 2));
		}

return $s;
	}

final public function __toString(): string
	{
		try {
			return $this->render();
		} catch (\Throwable $e) {
			if (PHP_VERSION_ID >= 70400) {
				throw $e;
			}

trigger_error('Exception in ' . __METHOD__ . "(): {$e->getMessage()} in {$e->getFile()}:{$e->getLine()}", E_USER_ERROR);
			return '';
		}
	}

/**
	 * Returns element's start tag.
	 */
	final public function startTag(): string
	{
		return $this->name
			? '<' . $this->name . $this->attributes() . (static::$xhtml && $this->isEmpty ? ' />' : '>')
			: '';
	}

/**
	 * Returns element's end tag.
	 */
	final public function endTag(): string
	{
		return $this->name && !$this->isEmpty ? '</' . $this->name . '>' : '';
	}

/**
	 * Returns element's attributes.
	 * @internal
	 */
	final public function attributes(): string
	{
		if (!is_array($this->attrs)) {
			return '';
		}

$s = '';
		$attrs = $this->attrs;
		foreach ($attrs as $key => $value) {
			if ($value === null || $value === false) {
				continue;

} elseif ($value === true) {
				if (static::$xhtml) {
					$s .= ' ' . $key . '="' . $key . '"';
				} else {
					$s .= ' ' . $key;
				}

continue;

} elseif (is_array($value)) {
				if (strncmp($key, 'data-', 5) === 0) {
					$value = Json::encode($value);

} else {
					$tmp = null;
					foreach ($value as $k => $v) {
						if ($v != null) { // intentionally ==, skip nulls & empty string
							// composite 'style' vs. 'others'
							$tmp[] = $v === true
								? $k
								: (is_string($k) ? $k . ':' . $v : $v);
						}
					}

if ($tmp === null) {
						continue;
					}

$value = implode($key === 'style' || !strncmp($key, 'on', 2) ? ';' : ' ', $tmp);
				}
			} elseif (is_float($value)) {
				$value = rtrim(rtrim(number_format($value, 10, '.', ''), '0'), '.');

} else {
				$value = (string) $value;
			}

$q = strpos($value, '"') === false ? '"' : "'";
			$s .= ' ' . $key . '=' . $q
				. str_replace(
					['&', $q, '<'],
					['&amp;', $q === '"' ? '&quot;' : '&#39;', self::$xhtml ? '&lt;' : '<'],
					$value
				)
				. (strpos($value, '`') !== false && strpbrk($value, ' <>"\'') === false ? ' ' : '')
				. $q;
		}

$s = str_replace('@', '&#64;', $s);
		return $s;
	}

/**
	 * Clones all children too.
	 */
	public function __clone()
	{
		foreach ($this->children as $key => $value) {
			if (is_object($value)) {
				$this->children[$key] = clone $value;
			}
		}
	}
}

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