<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Dojo

 * @subpackage Form_Element

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

/** Zend_Form_Element */

require_once 'Zend/Form/Element.php';

/**

 * Base element for dijit elements

 *

 * @category   Zend

 * @package    Zend_Dojo

 * @subpackage Form_Element

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

abstract class Zend_Dojo_Form_Element_Dijit extends Zend_Form_Element

{

    /**

     * Dijit parameters

     * @var array

     */

    public $dijitParams = array();

    /**

     * View helper to use

     * @var string

     */

    public $helper;

    /**

     * Constructor

     *

     * @todo Should we set dojo view helper paths here?

     * @param  mixed $spec

     * @param  mixed $options

     * @return void

     */

    public function __construct($spec, $options = null)

    {

        $this->addPrefixPath('Zend_Dojo_Form_Decorator', 'Zend/Dojo/Form/Decorator', 'decorator');

        parent::__construct($spec, $options);

    }

    /**

     * Set a dijit parameter

     *

     * @param  string $key

     * @param  mixed $value

     * @return Zend_Dojo_Form_Element_Dijit

     */

    public function setDijitParam($key, $value)

    {

        $key = (string) $key;

        $this->dijitParams[$key] = $value;

        return $this;

    }

    /**

     * Set multiple dijit params at once

     *

     * @param  array $params

     * @return Zend_Dojo_Form_Element_Dijit

     */

    public function setDijitParams(array $params)

    {

        $this->dijitParams = array_merge($this->dijitParams, $params);

        return $this;

    }

    /**

     * Does the given dijit parameter exist?

     *

     * @param  string $key

     * @return bool

     */

    public function hasDijitParam($key)

    {

        return array_key_exists($key, $this->dijitParams);

    }

    /**

     * Get a single dijit parameter

     *

     * @param  string $key

     * @return mixed

     */

    public function getDijitParam($key)

    {

        $key = (string) $key;

        if ($this->hasDijitParam($key)) {

            return $this->dijitParams[$key];

        }

        return null;

    }

    /**

     * Retrieve all dijit parameters

     *

     * @return array

     */

    public function getDijitParams()

    {

        return $this->dijitParams;

    }

    /**

     * Remove a single dijit parameter

     *

     * @param  string $key

     * @return Zend_Dojo_Form_Element_Dijit

     */

    public function removeDijitParam($key)

    {

        $key = (string) $key;

        if (array_key_exists($key, $this->dijitParams)) {

            unset($this->dijitParams[$key]);

        }

        return $this;

    }

    /**

     * Clear all dijit parameters

     *

     * @return Zend_Dojo_Form_Element_Dijit

     */

    public function clearDijitParams()

    {

        $this->dijitParams = array();

        return $this;

    }

    /**

     * Load default decorators

     *

     * @return void

     */

    public function loadDefaultDecorators()

    {

        if ($this->loadDefaultDecoratorsIsDisabled()) {

            return;

        }

        $decorators = $this->getDecorators();

        if (empty($decorators)) {

            $this->addDecorator('DijitElement')

                 ->addDecorator('Errors')

                 ->addDecorator('Description', array('tag' => 'p', 'class' => 'description'))

                 ->addDecorator('HtmlTag', array('tag' => 'dd'))

                 ->addDecorator('Label', array('tag' => 'dt'));

        }

    }

    /**

     * Set the view object

     *

     * Ensures that the view object has the dojo view helper path set.

     *

     * @param  Zend_View_Interface $view

     * @return Zend_Dojo_Form_Element_Dijit

     */

    public function setView(Zend_View_Interface $view = null)

    {

        if (null !== $view) {

            if (false === $view->getPluginLoader('helper')->getPaths('Zend_Dojo_View_Helper')) {

                $view->addHelperPath('Zend/Dojo/View/Helper', 'Zend_Dojo_View_Helper');

            }

        }

        return parent::setView($view);

    }

}