Edit File: Html.php
<?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 = []; /** 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 = []; /** element's name */ private string $name = ''; private bool $isEmpty = false; /** * Constructs new HTML element. * @param array|string $attrs element's attributes or plain text content */ public static function el(?string $name = null, array|string|null $attrs = null): static { $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 $html): static { return (new static)->setHtml($html); } /** * Returns an object representing plain text. */ public static function fromText(string $text): static { return (new static)->setText($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. */ final public function setName(string $name, ?bool $isEmpty = null): static { $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. */ public function addAttributes(array $attrs): static { $this->attrs = array_merge($this->attrs, $attrs); return $this; } /** * Appends value to element's attribute. */ public function appendAttribute(string $name, mixed $value, mixed $option = true): static { if (is_array($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. */ public function setAttribute(string $name, mixed $value): static { $this->attrs[$name] = $value; return $this; } /** * Returns element's attribute. */ public function getAttribute(string $name): mixed { return $this->attrs[$name] ?? null; } /** * Unsets element's attribute. */ public function removeAttribute(string $name): static { unset($this->attrs[$name]); return $this; } /** * Unsets element's attributes. */ public function removeAttributes(array $attributes): static { foreach ($attributes as $name) { unset($this->attrs[$name]); } return $this; } /** * Overloaded setter for element's attribute. */ final public function __set(string $name, mixed $value): void { $this->attrs[$name] = $value; } /** * Overloaded getter for element's attribute. */ final public function &__get(string $name): mixed { 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. */ final public function __call(string $m, array $args): mixed { $p = substr($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. */ final public function href(string $path, array $query = []): static { if ($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'. */ public function data(string $name, mixed $value = null): static { 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. */ final public function setHtml(mixed $html): static { $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. */ final public function setText(mixed $text): static { if (!$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. */ final public function addHtml(mixed $child): static { return $this->insert(null, $child); } /** * Appends plain-text string to element content. */ public function addText(mixed $text): static { if (!$text instanceof HtmlStringable) { $text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8'); } return $this->insert(null, $text); } /** * Creates and adds a new Html child. */ final public function create(string $name, array|string|null $attrs = null): static { $this->insert(null, $child = static::el($name, $attrs)); return $child; } /** * Inserts child node. */ public function insert(?int $index, HtmlStringable|string $child, bool $replace = false): static { $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, replace: true); } /** * Returns child node (\ArrayAccess implementation). * @param int $index */ final public function offsetGet($index): HtmlStringable|string { 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 { return $this->render(); } /** * Returns element's start tag. */ final public function startTag(): string { return $this->name ? '<' . $this->name . $this->attributes() . '>' : ''; } /** * 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) { $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; } $q = str_contains($value, '"') ? "'" : '"'; $s .= ' ' . $key . '=' . $q . str_replace( ['&', $q, '<'], ['&', $q === '"' ? '"' : ''', '<'], $value, ) . (str_contains($value, '`') && strpbrk($value, ' <>"\'') === false ? ' ' : '') . $q; } $s = str_replace('@', '@', $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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