datatable.directory/app/View/Widget.php

<?php


namespace App\View;

/**
 * Widget
 *
 * @property-read string $name
 * @property-read string $id
 * @property-read string $label
 * @property-read string|null $help
 * @property-read string|null $value
 * @property-read string $attributes
 */
class Widget
{
    private $attributes = [],
        $id, $name, $label, $value,
        $viewName,
        $help,
        $style = [];

    public function __construct($viewName, $name, $label)
    {
        $this->id = 'field-'.$name;
        $this->name = $name;
        $this->label = $label;
        $this->viewName = $viewName;
    }

    // setting attributes via magic method
    public function __call($method, $args)
    {
        static $cssProps = [
            'height', 'minHeight', 'maxHeight'
        ];

        if (empty($args)) $args = [''];

        $arg = $args[0];

        // css
        $lccamel = $method;
        if (in_array($lccamel, $cssProps)) {
            return $this->css(kebab_case($lccamel), $arg);
        }

        if (property_exists($this, $method)) {
            $this->$method = $arg;
        }
        else {
            $this->attributes[$method] = $arg;
        }

        return $this;
    }

    public function css($prop, $val)
    {
        $this->style[$prop] = $val;
        return $this;
    }

    public function __get($name)
    {
        if ($name == 'attributes') {
            return $this->compileAttribs();
        }

        if ($name == 'value') {
            return old($this->name, $this->value);
        }

        if (property_exists($this, $name)) {
            return $this->$name;
        }

        return null;
    }

    public function compileAttribs()
    {
        // compile attribs string
        $attribs_s = array_reduce(array_keys($this->attributes), function ($carry, $key) {
            return $carry . ' ' . $key . '="' . e($this->attributes[$key]) . '"';
        }, '');

        // add a compiled list of styles
        if (!empty($this->style)) {
            $attribs_s .= 'style="'.trim(e(array_reduce(array_keys($this->style), function ($carry, $key) {
                return $carry . $key . ': ' . $this->style[$key] . '; ';
            }, ''))).'"';
        }

        return trim($attribs_s);
    }

    public function render()
    {
        return view('form.'.$this->viewName)->with(['w' => $this]);
    }

    public function __toString()
    {
        return (string) $this->render();
    }
}