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<?php

/**
 * MvcCore
 *
 * This source file is subject to the BSD 3 License
 * For the full copyright and license information, please view 
 * the LICENSE.md file that are distributed with this source code.
 *
 * @copyright   Copyright (c) 2016 Tom Flídr (https://github.com/mvccore/mvccore)
 * @license     https://mvccore.github.io/docs/mvccore/4.0.0/LICENCE.md
 */

namespace MvcCore\Ext\Form;

require_once(__DIR__.'/../Form.php');
require_once('Core/Field.php');
//require_once('Core/View.php');
//require_once('Core/Exception.php');

class Button extends Core\Field
{
    public $Type = 'button'; // submit | reset | button
    public $Value = 'OK';
    public $RenderMode = \MvcCore\Ext\Form::FIELD_RENDER_MODE_NO_LABEL;
    public $Accesskey = null;
    public static $Templates = array(
        'control'   => '<button id="{id}" name="{name}" type="{type}"{attrs}>{value}</button>',
    );
    public function __construct(array $cfg = array()) {
        parent::__construct($cfg);
        static::$Templates = (object) array_merge((array)parent::$Templates, (array)self::$Templates);
    }
    public function SetAccesskey ($accesskey) {
        $this->Accesskey = $accesskey;
        return $this;
    }
    public function OnAdded (\MvcCore\Ext\Form & $form) {
        parent::OnAdded($form);
        if (!$this->Value) {
            $clsName = get_class($this);
            include_once('Core/Exception.php');
            throw new Core\Exception("No 'Value' defined for form field: '$clsName'.");
        }
    }
    public function SetUp () {
        parent::SetUp();
        if ($this->Translate && $this->Value) {
            $this->Value = call_user_func($this->Form->Translator, $this->Value, $this->Form->Lang);
        }
    }
    public function RenderControl () {
        $attrsStr = $this->renderControlAttrsWithFieldVars(
            array('Accesskey',)
        );
        include_once('Core/View.php');
        return Core\View::Format(static::$Templates->control, array(
            'id'        => $this->Id, 
            'name'      => $this->Name, 
            'type'      => $this->Type,
            'value'     => $this->Value,
            'attrs'     => $attrsStr ? " $attrsStr" : '', 
        ));
    }
}