548 lines
16 KiB
PHP
548 lines
16 KiB
PHP
<?php
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/**
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* This file is part of CodeIgniter 4 framework.
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*
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* (c) CodeIgniter Foundation <admin@codeigniter.com>
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*
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* For the full copyright and license information, please view
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* the LICENSE file that was distributed with this source code.
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*/
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use CodeIgniter\Files\Exceptions\FileNotFoundException;
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use Config\DocTypes;
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use Config\Mimes;
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// CodeIgniter HTML Helpers
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if (! function_exists('ul')) {
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/**
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* Unordered List
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*
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* Generates an HTML unordered list from an single or
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* multi-dimensional array.
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*
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* @param array|object|string $attributes HTML attributes string, array, object
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*/
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function ul(array $list, $attributes = ''): string
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{
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return _list('ul', $list, $attributes);
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}
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}
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if (! function_exists('ol')) {
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/**
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* Ordered List
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*
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* Generates an HTML ordered list from an single or multi-dimensional array.
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*
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* @param array|object|string $attributes HTML attributes string, array, object
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*/
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function ol(array $list, $attributes = ''): string
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{
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return _list('ol', $list, $attributes);
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}
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}
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if (! function_exists('_list')) {
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/**
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* Generates the list
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*
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* Generates an HTML ordered list from an single or multi-dimensional array.
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*
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* @param array $list
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* @param array|object|string $attributes string, array, object
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*/
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function _list(string $type = 'ul', $list = [], $attributes = '', int $depth = 0): string
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{
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// Set the indentation based on the depth
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$out = str_repeat(' ', $depth)
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// Write the opening list tag
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. '<' . $type . stringify_attributes($attributes) . ">\n";
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// Cycle through the list elements. If an array is
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// encountered we will recursively call _list()
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foreach ($list as $key => $val) {
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$out .= str_repeat(' ', $depth + 2) . '<li>';
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if (! is_array($val)) {
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$out .= $val;
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} else {
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$out .= $key
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. "\n"
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. _list($type, $val, '', $depth + 4)
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. str_repeat(' ', $depth + 2);
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}
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$out .= "</li>\n";
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}
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// Set the indentation for the closing tag and apply it
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return $out . str_repeat(' ', $depth) . '</' . $type . ">\n";
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}
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}
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if (! function_exists('img')) {
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/**
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* Image
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*
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* Generates an image element
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*
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* @param array|string $src Image source URI, or array of attributes and values
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* @param bool $indexPage Whether to treat $src as a routed URI string
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* @param array|object|string $attributes Additional HTML attributes
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*/
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function img($src = '', bool $indexPage = false, $attributes = ''): string
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{
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if (! is_array($src)) {
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$src = ['src' => $src];
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}
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if (! isset($src['src'])) {
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$src['src'] = $attributes['src'] ?? '';
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}
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if (! isset($src['alt'])) {
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$src['alt'] = $attributes['alt'] ?? '';
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}
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$img = '<img';
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// Check for a relative URI
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if (! preg_match('#^([a-z]+:)?//#i', $src['src']) && strpos($src['src'], 'data:') !== 0) {
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if ($indexPage === true) {
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$img .= ' src="' . site_url($src['src']) . '"';
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} else {
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$img .= ' src="' . slash_item('baseURL') . $src['src'] . '"';
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}
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unset($src['src']);
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}
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// Append any other values
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foreach ($src as $key => $value) {
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$img .= ' ' . $key . '="' . $value . '"';
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}
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// Prevent passing completed values to stringify_attributes
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if (is_array($attributes)) {
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unset($attributes['alt'], $attributes['src']);
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}
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return $img . stringify_attributes($attributes) . _solidus() . '>';
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}
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}
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if (! function_exists('img_data')) {
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/**
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* Image (data)
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*
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* Generates a src-ready string from an image using the "data:" protocol
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*
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* @param string $path Image source path
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* @param string|null $mime MIME type to use, or null to guess
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*/
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function img_data(string $path, ?string $mime = null): string
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{
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if (! is_file($path) || ! is_readable($path)) {
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throw FileNotFoundException::forFileNotFound($path);
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}
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// Read in file binary data
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$handle = fopen($path, 'rb');
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$data = fread($handle, filesize($path));
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fclose($handle);
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// Encode as base64
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$data = base64_encode($data);
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// Figure out the type (Hail Mary to JPEG)
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$mime ??= Mimes::guessTypeFromExtension(pathinfo($path, PATHINFO_EXTENSION)) ?? 'image/jpg';
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return 'data:' . $mime . ';base64,' . $data;
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}
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}
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if (! function_exists('doctype')) {
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/**
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* Doctype
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*
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* Generates a page document type declaration
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*
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* Examples of valid options: html5, xhtml-11, xhtml-strict, xhtml-trans,
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* xhtml-frame, html4-strict, html4-trans, and html4-frame.
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* All values are saved in the doctypes config file.
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*
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* @param string $type The doctype to be generated
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*/
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function doctype(string $type = 'html5'): string
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{
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$config = new DocTypes();
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$doctypes = $config->list;
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return $doctypes[$type] ?? false;
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}
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}
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if (! function_exists('script_tag')) {
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/**
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* Script
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*
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* Generates link to a JS file
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*
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* @param array|string $src Script source or an array of attributes
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* @param bool $indexPage Should indexPage be added to the JS path
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*/
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function script_tag($src = '', bool $indexPage = false): string
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{
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$cspNonce = csp_script_nonce();
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$cspNonce = $cspNonce ? ' ' . $cspNonce : $cspNonce;
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$script = '<script' . $cspNonce . ' ';
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if (! is_array($src)) {
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$src = ['src' => $src];
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}
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foreach ($src as $k => $v) {
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if ($k === 'src' && ! preg_match('#^([a-z]+:)?//#i', $v)) {
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if ($indexPage === true) {
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$script .= 'src="' . site_url($v) . '" ';
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} else {
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$script .= 'src="' . slash_item('baseURL') . $v . '" ';
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}
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} else {
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// for attributes without values, like async or defer, use NULL.
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$script .= $k . (null === $v ? ' ' : '="' . $v . '" ');
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}
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}
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return rtrim($script) . '></script>';
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}
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}
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if (! function_exists('link_tag')) {
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/**
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* Link
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*
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* Generates link tag
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*
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* @param array<string, bool|string>|string $href Stylesheet href or an array
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* @param bool $indexPage should indexPage be added to the CSS path.
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*/
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function link_tag(
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$href = '',
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string $rel = 'stylesheet',
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string $type = 'text/css',
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string $title = '',
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string $media = '',
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bool $indexPage = false,
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string $hreflang = ''
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): string {
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$attributes = [];
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// extract fields if needed
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if (is_array($href)) {
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$rel = $href['rel'] ?? $rel;
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$type = $href['type'] ?? $type;
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$title = $href['title'] ?? $title;
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$media = $href['media'] ?? $media;
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$hreflang = $href['hreflang'] ?? '';
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$indexPage = $href['indexPage'] ?? $indexPage;
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$href = $href['href'] ?? '';
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}
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if (! preg_match('#^([a-z]+:)?//#i', $href)) {
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$attributes['href'] = $indexPage ? site_url($href) : slash_item('baseURL') . $href;
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} else {
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$attributes['href'] = $href;
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}
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if ($hreflang !== '') {
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$attributes['hreflang'] = $hreflang;
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}
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$attributes['rel'] = $rel;
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if ($type !== '' && $rel !== 'canonical' && $hreflang === '' && ! ($rel === 'alternate' && $media !== '')) {
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$attributes['type'] = $type;
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}
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if ($media !== '') {
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$attributes['media'] = $media;
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}
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if ($title !== '') {
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$attributes['title'] = $title;
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}
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return '<link' . stringify_attributes($attributes) . _solidus() . '>';
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}
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}
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if (! function_exists('video')) {
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/**
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* Video
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*
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* Generates a video element to embed videos. The video element can
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* contain one or more video sources
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*
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* @param array|string $src Either a source string or an array of sources
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* @param string $unsupportedMessage The message to display if the media tag is not supported by the browser
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* @param string $attributes HTML attributes
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*/
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function video($src, string $unsupportedMessage = '', string $attributes = '', array $tracks = [], bool $indexPage = false): string
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{
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if (is_array($src)) {
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return _media('video', $src, $unsupportedMessage, $attributes, $tracks);
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}
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$video = '<video';
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if (_has_protocol($src)) {
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$video .= ' src="' . $src . '"';
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} elseif ($indexPage === true) {
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$video .= ' src="' . site_url($src) . '"';
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} else {
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$video .= ' src="' . slash_item('baseURL') . $src . '"';
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}
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if ($attributes !== '') {
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$video .= ' ' . $attributes;
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}
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$video .= ">\n";
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foreach ($tracks as $track) {
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$video .= _space_indent() . $track . "\n";
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}
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if ($unsupportedMessage !== '') {
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$video .= _space_indent()
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. $unsupportedMessage
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. "\n";
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}
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return $video . "</video>\n";
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}
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}
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if (! function_exists('audio')) {
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/**
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* Audio
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*
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* Generates an audio element to embed sounds
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*
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* @param array|string $src Either a source string or an array of sources
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* @param string $unsupportedMessage The message to display if the media tag is not supported by the browser.
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* @param string $attributes HTML attributes
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*/
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function audio($src, string $unsupportedMessage = '', string $attributes = '', array $tracks = [], bool $indexPage = false): string
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{
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if (is_array($src)) {
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return _media('audio', $src, $unsupportedMessage, $attributes, $tracks);
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}
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$audio = '<audio';
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if (_has_protocol($src)) {
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$audio .= ' src="' . $src . '"';
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} elseif ($indexPage === true) {
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$audio .= ' src="' . site_url($src) . '"';
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} else {
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$audio .= ' src="' . slash_item('baseURL') . $src . '"';
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}
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if ($attributes !== '') {
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$audio .= ' ' . $attributes;
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}
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$audio .= '>';
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foreach ($tracks as $track) {
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$audio .= "\n" . _space_indent() . $track;
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}
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if ($unsupportedMessage !== '') {
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$audio .= "\n" . _space_indent() . $unsupportedMessage . "\n";
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}
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return $audio . "</audio>\n";
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}
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}
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if (! function_exists('_media')) {
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/**
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* Generate media based tag
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*
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* @param string $unsupportedMessage The message to display if the media tag is not supported by the browser.
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*/
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function _media(string $name, array $types = [], string $unsupportedMessage = '', string $attributes = '', array $tracks = []): string
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{
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$media = '<' . $name;
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if ($attributes === '') {
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$media .= '>';
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} else {
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$media .= ' ' . $attributes . '>';
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}
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$media .= "\n";
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foreach ($types as $option) {
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$media .= _space_indent() . $option . "\n";
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}
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foreach ($tracks as $track) {
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$media .= _space_indent() . $track . "\n";
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}
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if ($unsupportedMessage !== '') {
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$media .= _space_indent() . $unsupportedMessage . "\n";
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}
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return $media . ('</' . $name . ">\n");
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}
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}
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if (! function_exists('source')) {
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/**
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* Source
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*
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* Generates a source element that specifies multiple media resources
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* for either audio or video element
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*
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* @param string $src The path of the media resource
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* @param string $type The MIME-type of the resource with optional codecs parameters
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* @param string $attributes HTML attributes
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*/
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function source(string $src, string $type = 'unknown', string $attributes = '', bool $indexPage = false): string
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{
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if (! _has_protocol($src)) {
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$src = $indexPage === true ? site_url($src) : slash_item('baseURL') . $src;
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}
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$source = '<source src="' . $src
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. '" type="' . $type . '"';
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if ($attributes !== '') {
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$source .= ' ' . $attributes;
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}
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return $source . _solidus() . '>';
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}
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}
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if (! function_exists('track')) {
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/**
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* Track
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*
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* Generates a track element to specify timed tracks. The tracks are
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* formatted in WebVTT format.
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*
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* @param string $src The path of the .VTT file
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*/
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function track(string $src, string $kind, string $srcLanguage, string $label): string
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{
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return '<track src="' . $src
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. '" kind="' . $kind
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. '" srclang="' . $srcLanguage
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. '" label="' . $label
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. '"' . _solidus() . '>';
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}
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}
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if (! function_exists('object')) {
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/**
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* Object
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*
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* Generates an object element that represents the media
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* as either image or a resource plugin such as audio, video,
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* Java applets, ActiveX, PDF and Flash
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*
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* @param string $data A resource URL
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* @param string $type Content-type of the resource
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* @param string $attributes HTML attributes
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*/
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function object(string $data, string $type = 'unknown', string $attributes = '', array $params = [], bool $indexPage = false): string
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{
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if (! _has_protocol($data)) {
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$data = $indexPage === true ? site_url($data) : slash_item('baseURL') . $data;
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}
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$object = '<object data="' . $data . '" '
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. $attributes . '>';
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if ($params !== []) {
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$object .= "\n";
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}
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foreach ($params as $param) {
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$object .= _space_indent() . $param . "\n";
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}
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return $object . "</object>\n";
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}
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}
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if (! function_exists('param')) {
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/**
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* Param
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*
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* Generates a param element that defines parameters
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* for the object element.
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*
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* @param string $name The name of the parameter
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* @param string $value The value of the parameter
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* @param string $type The MIME-type
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* @param string $attributes HTML attributes
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*/
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function param(string $name, string $value, string $type = 'ref', string $attributes = ''): string
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{
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return '<param name="' . $name
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. '" type="' . $type
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. '" value="' . $value
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. '" ' . $attributes . _solidus() . '>';
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}
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}
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if (! function_exists('embed')) {
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/**
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* Embed
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*
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* Generates an embed element
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*
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* @param string $src The path of the resource to embed
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* @param string $type MIME-type
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* @param string $attributes HTML attributes
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*/
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function embed(string $src, string $type = 'unknown', string $attributes = '', bool $indexPage = false): string
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{
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if (! _has_protocol($src)) {
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$src = $indexPage === true ? site_url($src) : slash_item('baseURL') . $src;
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}
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return '<embed src="' . $src
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. '" type="' . $type . '" '
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. $attributes . _solidus() . ">\n";
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}
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}
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if (! function_exists('_has_protocol')) {
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/**
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* Test the protocol of a URI.
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*
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* @return false|int
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*/
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function _has_protocol(string $url)
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{
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return preg_match('#^([a-z]+:)?//#i', $url);
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}
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}
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if (! function_exists('_space_indent')) {
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/**
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* Provide space indenting.
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*/
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function _space_indent(int $depth = 2): string
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{
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return str_repeat(' ', $depth);
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}
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}
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