<?php
namespace Illuminate\View;
use ArrayAccess;
use ArrayIterator;
use Illuminate\Contracts\Support\Htmlable;
use Illuminate\Support\Arr;
use Illuminate\Support\HtmlString;
use Illuminate\Support\Str;
use Illuminate\Support\Traits\Macroable;
use IteratorAggregate;
class ComponentAttributeBag implements ArrayAccess, Htmlable, IteratorAggregate
{
use Macroable;
/**
* The raw array of attributes.
*
* @var array
*/
protected $attributes = [];
/**
* Create a new component attribute bag instance.
*
* @param array $attributes
* @return void
*/
public function __construct(array $attributes = [])
{
$this->attributes = $attributes;
}
/**
* Get the first attribute's value.
*
* @param mixed $default
* @return mixed
*/
public function first($default = null)
{
return $this->getIterator()->current() ?? value($default);
}
/**
* Get a given attribute from the attribute array.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public function get($key, $default = null)
{
return $this->attributes[$key] ?? value($default);
}
/**
* Determine if a given attribute exists in the attribute array.
*
* @param string $key
* @return bool
*/
public function has($key)
{
return array_key_exists($key, $this->attributes);
}
/**
* Only include the given attribute from the attribute array.
*
* @param mixed $keys
* @return static
*/
public function only($keys)
{
if (is_null($keys)) {
$values = $this->attributes;
} else {
$keys = Arr::wrap($keys);
$values = Arr::only($this->attributes, $keys);
}
return new static($values);
}
/**
* Exclude the given attribute from the attribute array.
*
* @param mixed|array $keys
* @return static
*/
public function except($keys)
{
if (is_null($keys)) {
$values = $this->attributes;
} else {
$keys = Arr::wrap($keys);
$values = Arr::except($this->attributes, $keys);
}
return new static($values);
}
/**
* Filter the attributes, returning a bag of attributes that pass the filter.
*
* @param callable $callback
* @return static
*/
public function filter($callback)
{
return new static(collect($this->attributes)->filter($callback)->all());
}
/**
* Return a bag of attributes that have keys starting with the given value / pattern.
*
* @param string $string
* @return static
*/
public function whereStartsWith($string)
{
return $this->filter(function ($value, $key) use ($string) {
return Str::startsWith($key, $string);
});
}
/**
* Return a bag of attributes with keys that do not start with the given value / pattern.
*
* @param string $string
* @return static
*/
public function whereDoesntStartWith($string)
{
return $this->filter(function ($value, $key) use ($string) {
return ! Str::startsWith($key, $string);
});
}
/**
* Return a bag of attributes that have keys starting with the given value / pattern.
*
* @param string $string
* @return static
*/
public function thatStartWith($string)
{
return $this->whereStartsWith($string);
}
/**
* Exclude the given attribute from the attribute array.
*
* @param mixed|array $keys
* @return static
*/
public function exceptProps($keys)
{
$props = [];
foreach ($keys as $key => $defaultValue) {
$key = is_numeric($key) ? $defaultValue : $key;
$props[] = $key;
$props[] = Str::kebab($key);
}
return $this->except($props);
}
/**
* Conditionally merge classes into the attribute bag.
*
* @param mixed|array $classList
* @return static
*/
public function class($classList)
{
$classList = Arr::wrap($classList);
$classes = [];
foreach ($classList as $class => $constraint) {
if (is_numeric($class)) {
$classes[] = $constraint;
} elseif ($constraint) {
$classes[] = $class;
}
}
return $this->merge(['class' => implode(' ', $classes)]);
}
/**
* Merge additional attributes / values into the attribute bag.
*
* @param array $attributeDefaults
* @param bool $escape
* @return static
*/
public function merge(array $attributeDefaults = [], $escape = true)
{
$attributeDefaults = array_map(function ($value) use ($escape) {
return $this->shouldEscapeAttributeValue($escape, $value)
? e($value)
: $value;
}, $attributeDefaults);
[$appendableAttributes, $nonAppendableAttributes] = collect($this->attributes)
->partition(function ($value, $key) use ($attributeDefaults) {
return $key === 'class' ||
(isset($attributeDefaults[$key]) &&
$attributeDefaults[$key] instanceof AppendableAttributeValue);
});
$attributes = $appendableAttributes->mapWithKeys(function ($value, $key) use ($attributeDefaults, $escape) {
$defaultsValue = isset($attributeDefaults[$key]) && $attributeDefaults[$key] instanceof AppendableAttributeValue
? $this->resolveAppendableAttributeDefault($attributeDefaults, $key, $escape)
: ($attributeDefaults[$key] ?? '');
return [$key => implode(' ', array_unique(array_filter([$defaultsValue, $value])))];
})->merge($nonAppendableAttributes)->all();
return new static(array_merge($attributeDefaults, $attributes));
}
/**
* Determine if the specific attribute value should be escaped.
*
* @param bool $escape
* @param mixed $value
* @return bool
*/
protected function shouldEscapeAttributeValue($escape, $value)
{
if (! $escape) {
return false;
}
return ! is_object($value) &&
! is_null($value) &&
! is_bool($value);
}
/**
* Create a new appendable attribute value.
*
* @param mixed $value
* @return \Illuminate\View\AppendableAttributeValue
*/
public function prepends($value)
{
return new AppendableAttributeValue($value);
}
/**
* Resolve an appendable attribute value default value.
*
* @param array $attributeDefaults
* @param string $key
* @param bool $escape
* @return mixed
*/
protected function resolveAppendableAttributeDefault($attributeDefaults, $key, $escape)
{
if ($this->shouldEscapeAttributeValue($escape, $value = $attributeDefaults[$key]->value)) {
$value = e($value);
}
return $value;
}
/**
* Get all of the raw attributes.
*
* @return array
*/
public function getAttributes()
{
return $this->attributes;
}
/**
* Set the underlying attributes.
*
* @param array $attributes
* @return void
*/
public function setAttributes(array $attributes)
{
if (isset($attributes['attributes']) &&
$attributes['attributes'] instanceof self) {
$parentBag = $attributes['attributes'];
unset($attributes['attributes']);
$attributes = $parentBag->merge($attributes, $escape = false)->getAttributes();
}
$this->attributes = $attributes;
}
/**
* Get content as a string of HTML.
*
* @return string
*/
public function toHtml()
{
return (string) $this;
}
/**
* Merge additional attributes / values into the attribute bag.
*
* @param array $attributeDefaults
* @return \Illuminate\Support\HtmlString
*/
public function __invoke(array $attributeDefaults = [])
{
return new HtmlString((string) $this->merge($attributeDefaults));
}
/**
* Determine if the given offset exists.
*
* @param string $offset
* @return bool
*/
public function offsetExists($offset)
{
return isset($this->attributes[$offset]);
}
/**
* Get the value at the given offset.
*
* @param string $offset
* @return mixed
*/
public function offsetGet($offset)
{
return $this->get($offset);
}
/**
* Set the value at a given offset.
*
* @param string $offset
* @param mixed $value
* @return void
*/
public function offsetSet($offset, $value)
{
$this->attributes[$offset] = $value;
}
/**
* Remove the value at the given offset.
*
* @param string $offset
* @return void
*/
public function offsetUnset($offset)
{
unset($this->attributes[$offset]);
}
/**
* Get an iterator for the items.
*
* @return \ArrayIterator
*/
public function getIterator()
{
return new ArrayIterator($this->attributes);
}
/**
* Implode the attributes into a single HTML ready string.
*
* @return string
*/
public function __toString()
{
$string = '';
foreach ($this->attributes as $key => $value) {
if ($value === false || is_null($value)) {
continue;
}
if ($value === true) {
$value = $key;
}
$string .= ' '.$key.'="'.str_replace('"', '\\"', trim($value)).'"';
}
return trim($string);
}
}