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<?php
use Kirby\Cms\App;
use Kirby\Cms\Blocks;
use Kirby\Cms\File;
use Kirby\Cms\Files;
use Kirby\Cms\Html;
use Kirby\Cms\Layouts;
use Kirby\Cms\Page;
use Kirby\Cms\Pages;
use Kirby\Cms\Structure;
use Kirby\Cms\Url;
use Kirby\Cms\User;
use Kirby\Cms\Users;
use Kirby\Content\Content;
use Kirby\Content\Field;
use Kirby\Data\Data;
use Kirby\Exception\Exception;
use Kirby\Exception\InvalidArgumentException;
use Kirby\Exception\NotFoundException;
use Kirby\Image\QrCode;
use Kirby\Toolkit\A;
use Kirby\Toolkit\Dom;
use Kirby\Toolkit\Str;
use Kirby\Toolkit\V;
use Kirby\Toolkit\Xml;
use Kirby\Uuid\Uuid;
/**
* Field method setup
*/
return function (App $app) {
return [
// states
/**
* Converts the field value into a proper boolean and inverts it
*/
'isFalse' => function (Field $field): bool {
return $field->toBool() === false;
},
/**
* Converts the field value into a proper boolean
*/
'isTrue' => function (Field $field): bool {
return $field->toBool() === true;
},
/**
* Validates the field content with the given validator and parameters
*
* @param mixed ...$arguments A list of optional validator arguments
*/
'isValid' => function (
Field $field,
string $validator,
...$arguments
): bool {
return V::$validator($field->value, ...$arguments);
},
// converters
/**
* Converts a yaml or json field to a Blocks object
*/
'toBlocks' => function (Field $field): Blocks {
try {
$blocks = Blocks::parse($field->value());
$blocks = Blocks::factory($blocks, [
'parent' => $field->parent(),
'field' => $field,
]);
return $blocks->filter('isHidden', false);
} catch (Throwable) {
$message = 'Invalid blocks data for "' . $field->key() . '" field';
if ($parent = $field->parent()) {
$message .= ' on parent "' . $parent->title() . '"';
}
throw new InvalidArgumentException($message);
}
},
/**
* Converts the field value into a proper boolean
*
* @param bool $default Default value if the field is empty
*/
'toBool' => function (Field $field, bool $default = false): bool {
$value = $field->isEmpty() ? $default : $field->value;
return filter_var($value, FILTER_VALIDATE_BOOLEAN);
},
/**
* Parses the field value with the given method
*
* @param string $method [',', 'yaml', 'json']
*/
'toData' => function (Field $field, string $method = ','): array {
return match ($method) {
'yaml', 'json' => Data::decode($field->value, $method),
default => $field->split($method)
};
},
/**
* Converts the field value to a timestamp or a formatted date
*
* @param string|\IntlDateFormatter|null $format PHP date formatting string
* @param string|null $fallback Fallback string for `strtotime`
*/
'toDate' => function (
Field $field,
string|IntlDateFormatter|null $format = null,
string|null $fallback = null
) use ($app): string|int|null {
if (empty($field->value) === true && $fallback === null) {
return null;
}
if (empty($field->value) === false) {
$time = $field->toTimestamp();
} else {
$time = strtotime($fallback);
}
return Str::date($time, $format);
},
/**
* Returns a file object from a filename in the field
*/
'toFile' => function (Field $field): File|null {
return $field->toFiles()->first();
},
/**
* Returns a file collection from a yaml list of filenames in the field
*/
'toFiles' => function (
Field $field,
string $separator = 'yaml'
): Files {
$parent = $field->parent();
$files = new Files([]);
foreach ($field->toData($separator) as $id) {
if (is_string($id) === true && $file = $parent->kirby()->file($id, $parent)) {
$files->add($file);
}
}
return $files;
},
/**
* Converts the field value into a proper float
*
* @param float $default Default value if the field is empty
*/
'toFloat' => function (Field $field, float $default = 0): float {
$value = $field->isEmpty() ? $default : $field->value;
return (float)$value;
},
/**
* Converts the field value into a proper integer
*
* @param int $default Default value if the field is empty
*/
'toInt' => function (Field $field, int $default = 0): int {
$value = $field->isEmpty() ? $default : $field->value;
return (int)$value;
},
/**
* Parse layouts and turn them into Layout objects
*/
'toLayouts' => function (Field $field): Layouts {
return Layouts::factory(Layouts::parse($field->value()), [
'parent' => $field->parent(),
'field' => $field,
]);
},
/**
* Wraps a link tag around the field value. The field value is used as the link text
*
* @param mixed $attr1 Can be an optional Url. If no Url is set, the Url of the Page, File or Site will be used. Can also be an array of link attributes
* @param mixed $attr2 If `$attr1` is used to set the Url, you can use `$attr2` to pass an array of additional attributes.
*/
'toLink' => function (
Field $field,
string|array|null $attr1 = null,
array|null $attr2 = null
): string {
if (is_string($attr1) === true) {
$href = $attr1;
$attr = $attr2;
} else {
$href = $field->parent()->url();
$attr = $attr1;
}
if ($field->parent()->isActive()) {
$attr['aria-current'] = 'page';
}
return Html::a($href, $field->value, $attr ?? []);
},
/**
* Parse yaml data and convert it to a
* content object
*/
'toObject' => function (Field $field): Content {
return new Content($field->yaml(), $field->parent(), true);
},
/**
* Returns a page object from a page id in the field
*/
'toPage' => function (Field $field): Page|null {
return $field->toPages()->first();
},
/**
* Returns a pages collection from a yaml list of page ids in the field
*
* @param string $separator Can be any other separator to split the field value by
*/
'toPages' => function (
Field $field,
string $separator = 'yaml'
) use ($app): Pages {
return $app->site()->find(
false,
false,
...$field->toData($separator)
);
},
/**
* Turns the field value into an QR code object
*/
'toQrCode' => function (Field $field): QrCode|null {
return $field->isNotEmpty() ? new QrCode($field->value) : null;
},
/**
* Converts a yaml field to a Structure object
*/
'toStructure' => function (Field $field): Structure {
try {
return Structure::factory(
Data::decode($field->value, 'yaml'),
['parent' => $field->parent(), 'field' => $field]
);
} catch (Exception) {
$message = 'Invalid structure data for "' . $field->key() . '" field';
if ($parent = $field->parent()) {
$message .= ' on parent "' . $parent->id() . '"';
}
throw new InvalidArgumentException($message);
}
},
/**
* Converts the field value to a Unix timestamp
*/
'toTimestamp' => function (Field $field): int|false {
return strtotime($field->value ?? '');
},
/**
* Turns the field value into an absolute Url
*/
'toUrl' => function (Field $field): string|null {
try {
return $field->isNotEmpty() ? Url::to($field->value) : null;
} catch (NotFoundException) {
return null;
}
},
/**
* Converts a user email address to a user object
*/
'toUser' => function (Field $field): User|null {
return $field->toUsers()->first();
},
/**
* Returns a users collection from a yaml list
* of user email addresses in the field
*/
'toUsers' => function (
Field $field,
string $separator = 'yaml'
) use ($app): Users {
return $app->users()->find(
false,
false,
...$field->toData($separator)
);
},
// inspectors
/**
* Returns the length of the field content
*/
'length' => function (Field $field): int {
return Str::length($field->value);
},
/**
* Returns the number of words in the text
*/
'words' => function (Field $field): int {
return str_word_count(strip_tags($field->value ?? ''));
},
// manipulators
/**
* Applies the callback function to the field
* @since 3.4.0
*/
'callback' => function (Field $field, Closure $callback): mixed {
return $callback($field);
},
/**
* Escapes the field value to be safely used in HTML
* templates without the risk of XSS attacks
*
* @param string $context Location of output (`html`, `attr`, `js`, `css`, `url` or `xml`)
*/
'escape' => function (Field $field, string $context = 'html'): Field {
$field->value = Str::esc($field->value ?? '', $context);
return $field;
},
/**
* Creates an excerpt of the field value without html
* or any other formatting.
*/
'excerpt' => function (
Field $field,
int $chars = 0,
bool $strip = true,
string $rep = ' …'
): Field {
$field->value = Str::excerpt(
$field->kirbytext()->value(),
$chars,
$strip,
$rep
);
return $field;
},
/**
* Converts the field content to valid HTML
*/
'html' => function (Field $field): Field {
$field->value = Html::encode($field->value);
return $field;
},
/**
* Strips all block-level HTML elements from the field value,
* it can be safely placed inside of other inline elements
* without the risk of breaking the HTML structure.
* @since 3.3.0
*/
'inline' => function (Field $field): Field {
// List of valid inline elements taken from: https://developer.mozilla.org/de/docs/Web/HTML/Inline_elemente
// Obsolete elements, script tags, image maps and form elements have
// been excluded for safety reasons and as they are most likely not
// needed in most cases.
$field->value = strip_tags($field->value ?? '', Html::$inlineList);
return $field;
},
/**
* Converts the field content from Markdown/Kirbytext to valid HTML
*/
'kirbytext' => function (
Field $field,
array $options = []
) use ($app): Field {
$field->value = $app->kirbytext($field->value, A::merge($options, [
'parent' => $field->parent(),
'field' => $field
]));
return $field;
},
/**
* Converts the field content from inline Markdown/Kirbytext
* to valid HTML
* @since 3.1.0
*/
'kirbytextinline' => function (
Field $field,
array $options = []
) use ($app): Field {
$field->value = $app->kirbytext($field->value, A::merge($options, [
'parent' => $field->parent(),
'field' => $field,
'markdown' => [
'inline' => true
]
]));
return $field;
},
/**
* Parses all KirbyTags without also parsing Markdown
*/
'kirbytags' => function (Field $field) use ($app): Field {
$field->value = $app->kirbytags($field->value, [
'parent' => $field->parent(),
'field' => $field
]);
return $field;
},
/**
* Converts the field content to lowercase
*/
'lower' => function (Field $field): Field {
$field->value = Str::lower($field->value);
return $field;
},
/**
* Converts markdown to valid HTML
*/
'markdown' => function (
Field $field,
array $options = []
) use ($app): Field {
$field->value = $app->markdown($field->value, $options);
return $field;
},
/**
* Converts all line breaks in the field content to `<br>` tags.
* @since 3.3.0
*/
'nl2br' => function (Field $field): Field {
$field->value = nl2br($field->value ?? '', false);
return $field;
},
/**
* Parses the field value as DOM and replaces
* any permalinks in href/src attributes with
* the regular url
*
* This method is still experimental! You can use
* it to solve potential problems with permalinks
* already, but it might change in the future.
*/
'permalinksToUrls' => function (Field $field): Field {
if ($field->isNotEmpty() === true) {
$dom = new Dom($field->value);
$attributes = ['href', 'src'];
$elements = $dom->query('//*[' . implode(' | ', A::map($attributes, fn ($attribute) => '@' . $attribute)) . ']');
foreach ($elements as $element) {
foreach ($attributes as $attribute) {
if ($element->hasAttribute($attribute) && $uuid = $element->getAttribute($attribute)) {
try {
if ($url = Uuid::for($uuid)?->model()?->url()) {
$element->setAttribute($attribute, $url);
}
} catch (InvalidArgumentException) {
// ignore anything else than permalinks
}
}
}
}
$field->value = $dom->toString();
}
return $field;
},
/**
* Uses the field value as Kirby query
*/
'query' => function (
Field $field,
string|null $expect = null
) use ($app): mixed {
if ($parent = $field->parent()) {
return $parent->query($field->value, $expect);
}
return Str::query($field->value, [
'kirby' => $app,
'site' => $app->site(),
'page' => $app->page()
]);
},
/**
* It parses any queries found in the field value.
*
* @param string|null $fallback Fallback for tokens in the template that cannot be replaced (`null` to keep the original token)
*/
'replace' => function (
Field $field,
array $data = [],
string|null $fallback = ''
) use ($app): Field {
if ($parent = $field->parent()) {
// never pass `null` as the $template to avoid the fallback to the model ID
$field->value = $parent->toString($field->value ?? '', $data, $fallback);
} else {
$field->value = Str::template($field->value, array_replace([
'kirby' => $app,
'site' => $app->site(),
'page' => $app->page()
], $data), ['fallback' => $fallback]);
}
return $field;
},
/**
* Cuts the string after the given length and
* adds "…" if it is longer
*
* @param int $length The number of characters in the string
* @param string $appendix An optional replacement for the missing rest
*/
'short' => function (
Field $field,
int $length,
string $appendix = '…'
): Field {
$field->value = Str::short($field->value, $length, $appendix);
return $field;
},
/**
* Converts the field content to a slug
*/
'slug' => function (Field $field): Field {
$field->value = Str::slug($field->value);
return $field;
},
/**
* Applies SmartyPants to the field
*/
'smartypants' => function (Field $field) use ($app): Field {
$field->value = $app->smartypants($field->value);
return $field;
},
/**
* Splits the field content into an array
*/
'split' => function (Field $field, $separator = ','): array {
return Str::split((string)$field->value, $separator);
},
/**
* Converts the field content to uppercase
*/
'upper' => function (Field $field): Field {
$field->value = Str::upper($field->value);
return $field;
},
/**
* Avoids typographical widows in strings by replacing
* the last space with ` `
*/
'widont' => function (Field $field): Field {
$field->value = Str::widont($field->value);
return $field;
},
/**
* Converts the field content to valid XML
*/
'xml' => function (Field $field): Field {
$field->value = Xml::encode($field->value);
return $field;
},
// aliases
/**
* Parses yaml in the field content and returns an array
*/
'yaml' => function (Field $field): array {
return $field->toData('yaml');
},
];
};