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Mini Shell
<?php
namespace Illuminate\View;
use Illuminate\Container\Container;
use Illuminate\Support\Str;
use Illuminate\View\Compilers\ComponentTagCompiler;
class DynamicComponent extends Component
{
/**
* The name of the component.
*
* @var string
*/
public $component;
/**
* The component tag compiler instance.
*
* @var \Illuminate\View\Compilers\BladeTagCompiler
*/
protected static $compiler;
/**
* The cached component classes.
*
* @var array
*/
protected static $componentClasses = [];
/**
* Create a new component instance.
*
* @param string $component
* @return void
*/
public function __construct(string $component)
{
$this->component = $component;
}
/**
* Get the view / contents that represent the component.
*
* @return \Illuminate\Contracts\View\View|string
*/
public function render()
{
$template = <<<'EOF'
<?php extract(collect($attributes->getAttributes())->mapWithKeys(function ($value, $key) { return [Illuminate\Support\Str::camel(str_replace([':', '.'], ' ', $key)) => $value]; })->all(), EXTR_SKIP); ?>
{{ props }}
<x-{{ component }} {{ bindings }} {{ attributes }}>
{{ slots }}
{{ defaultSlot }}
</x-{{ component }}>
EOF;
return function ($data) use ($template) {
$bindings = $this->bindings($class = $this->classForComponent());
return str_replace(
[
'{{ component }}',
'{{ props }}',
'{{ bindings }}',
'{{ attributes }}',
'{{ slots }}',
'{{ defaultSlot }}',
],
[
$this->component,
$this->compileProps($bindings),
$this->compileBindings($bindings),
class_exists($class) ? '{{ $attributes }}' : '',
$this->compileSlots($data['__laravel_slots']),
'{{ $slot ?? "" }}',
],
$template
);
};
}
/**
* Compile the @props directive for the component.
*
* @param array $bindings
* @return string
*/
protected function compileProps(array $bindings)
{
if (empty($bindings)) {
return '';
}
return '@props('.'[\''.implode('\',\'', collect($bindings)->map(function ($dataKey) {
return Str::camel($dataKey);
})->all()).'\']'.')';
}
/**
* Compile the bindings for the component.
*
* @param array $bindings
* @return string
*/
protected function compileBindings(array $bindings)
{
return collect($bindings)->map(function ($key) {
return ':'.$key.'="$'.Str::camel(str_replace([':', '.'], ' ', $key)).'"';
})->implode(' ');
}
/**
* Compile the slots for the component.
*
* @param array $slots
* @return string
*/
protected function compileSlots(array $slots)
{
return collect($slots)->map(function ($slot, $name) {
return $name === '__default' ? null : '<x-slot name="'.$name.'" '.((string) $slot->attributes).'>{{ $'.$name.' }}</x-slot>';
})->filter()->implode(PHP_EOL);
}
/**
* Get the class for the current component.
*
* @return string
*/
protected function classForComponent()
{
if (isset(static::$componentClasses[$this->component])) {
return static::$componentClasses[$this->component];
}
return static::$componentClasses[$this->component] =
$this->compiler()->componentClass($this->component);
}
/**
* Get the names of the variables that should be bound to the component.
*
* @param string $class
* @return array
*/
protected function bindings(string $class)
{
[$data, $attributes] = $this->compiler()->partitionDataAndAttributes($class, $this->attributes->getAttributes());
return array_keys($data->all());
}
/**
* Get an instance of the Blade tag compiler.
*
* @return \Illuminate\View\Compilers\ComponentTagCompiler
*/
protected function compiler()
{
if (! static::$compiler) {
static::$compiler = new ComponentTagCompiler(
Container::getInstance()->make('blade.compiler')->getClassComponentAliases(),
Container::getInstance()->make('blade.compiler')->getClassComponentNamespaces(),
Container::getInstance()->make('blade.compiler')
);
}
return static::$compiler;
}
}
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