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<?php
namespace App\View;
/**
* Widget
*
* @property-read string $name
* @property-read string $id
* @property-read string $label
* @property-read string $prepend
* @property-read string $append
* @property-read string|null $help
* @property-read string|null $value
* @property-read string $attributes
* @property-read int $labelCols
* @property-read int $fieldCols
*/
class Widget
{
protected $attributesArray = [],
$id, $name, $label, $value,
$viewName, // view to use inside the form namespace
$help, // help button with tooltip
$prepend, $append, // input-group (add-ons)
$labelCols, $fieldCols, // grid layout setting (label/field cols)
$styleArray = [];
public function __construct($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 = [null];
$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 {
$this->attributesArray[kebab_case($method)] = $arg;
}
return $this;
}
/** Explicitly set a CSS rule */
public function css($prop, $val)
{
$this->styleArray[$prop] = $val;
return $this;
}
/** Explicitly set an attribute */
public function attr($attr, $val)
{
$this->attributesArray[$attr] = $val;
return $this;
}
/** Configure a text field for automatic alias generation */
public function autoAlias($targetName, $delimiter='_')
{
return $this->attr('data-autoalias', $targetName)->attr('data-aa-delimiter', $delimiter);
}
/** Apply a given layout (bootstrap grid, 12 cols total) */
public function layout($labelCols, $fieldCols)
{
$this->labelCols = $labelCols;
$this->fieldCols = $fieldCols;
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->attributesArray), function ($carry, $key) {
if ($this->attributesArray[$key] === null) {
// simple attribs like 'required'
return $carry . ' ' . $key;
} else {
return $carry . ' ' . $key . '="' . e($this->attributesArray[$key]) . '"';
}
}, '');
// add a compiled list of styles
if (!empty($this->styleArray)) {
$attribs_s .= ' style="'.trim(e(array_reduce(array_keys($this->styleArray), function ($carry, $key) {
return $carry . $key . ': ' . $this->styleArray[$key] . '; ';
}, ''))).'"';
}
return trim($attribs_s);
}
public function render()
{
return view('form.'.$this->viewName)->with(['w' => $this]);
}
public function __toString()
{
return (string) $this->render();
}
}