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<?php
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/*
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 * This file is part of the symfony package.
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 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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/**
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 * sfWidgetFormChoice represents a choice widget.
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 *
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 * @package    symfony
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 * @subpackage widget
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 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
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 * @version    SVN: $Id: sfWidgetFormChoice.class.php 32835 2011-07-27 07:07:00Z fabien $
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 */
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class sfWidgetFormChoice extends sfWidgetFormChoiceBase
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{
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  /**
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   * Constructor.
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   *
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   * Available options:
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   *
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   *  * choices:          An array of possible choices (required)
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   *  * multiple:         true if the select tag must allow multiple selections
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   *  * expanded:         true to display an expanded widget
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   *                        if expanded is false, then the widget will be a select
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   *                        if expanded is true and multiple is false, then the widget will be a list of radio
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   *                        if expanded is true and multiple is true, then the widget will be a list of checkbox
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   *  * renderer_class:   The class to use instead of the default ones
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   *  * renderer_options: The options to pass to the renderer constructor
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   *  * renderer:         A renderer widget (overrides the expanded and renderer_options options)
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   *                      The choices option must be: new sfCallable($thisWidgetInstance, 'getChoices')
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   * @param array $options     An array of options
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   * @param array $attributes  An array of default HTML attributes
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   *
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   * @see sfWidgetFormChoiceBase
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   */
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  protected function configure($options = array(), $attributes = array())
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  {
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    parent::configure($options, $attributes);
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    $this->addOption('multiple', false);
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    $this->addOption('expanded', false);
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    $this->addOption('renderer_class', false);
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    $this->addOption('renderer_options', array());
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    $this->addOption('renderer', false);
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  }
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  /**
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   * Sets the format for HTML id attributes. This is made avaiable to the renderer,
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   * as this widget does not render itself, but delegates to the renderer instead.
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   *
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   * @param string $format  The format string (must contain a %s for the id placeholder)
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   *
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   * @see sfWidgetForm
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   */
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  public function setIdFormat($format)
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  {
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    $this->options['renderer_options']['id_format'] = $format;
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  }
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  /**
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   * Renders the widget.
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   *
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   * @param  string $name        The element name
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   * @param  string $value       The value selected in this widget
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   * @param  array  $attributes  An array of HTML attributes to be merged with the default HTML attributes
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   * @param  array  $errors      An array of errors for the field
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   *
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   * @return string An HTML tag string
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   *
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   * @see sfWidgetForm
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   */
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  public function render($name, $value = null, $attributes = array(), $errors = array())
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  {
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    if ($this->getOption('multiple'))
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    {
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      $attributes['multiple'] = 'multiple';
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      if ('[]' != substr($name, -2))
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      {
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        $name .= '[]';
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      }
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    }
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    if (!$this->getOption('renderer') && !$this->getOption('renderer_class') && $this->getOption('expanded'))
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    {
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      unset($attributes['multiple']);
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    }
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    return $this->getRenderer()->render($name, $value, $attributes, $errors);
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  }
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  /**
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   * Gets the stylesheet paths associated with the widget.
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   *
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   * @return array An array of stylesheet paths
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   */
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  public function getStylesheets()
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  {
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    return $this->getRenderer()->getStylesheets();
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  }
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  /**
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   * Gets the JavaScript paths associated with the widget.
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   *
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   * @return array An array of JavaScript paths
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   */
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  public function getJavaScripts()
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  {
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    return $this->getRenderer()->getJavaScripts();
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  }
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  public function getRenderer()
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  {
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    if ($this->getOption('renderer'))
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    {
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      return $this->getOption('renderer');
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    }
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    if (!$class = $this->getOption('renderer_class'))
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    {
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      $type = !$this->getOption('expanded') ? '' : ($this->getOption('multiple') ? 'checkbox' : 'radio');
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      $class = sprintf('sfWidgetFormSelect%s', ucfirst($type));
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    }
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    $options = $this->options['renderer_options'];
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    $options['choices'] = new sfCallable(array($this, 'getChoices'));
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    $renderer = new $class($options, $this->getAttributes());
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    // choices returned by the callback will already be translated (so we need to avoid double-translation)
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    if ($renderer->hasOption('translate_choices')) {
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        $renderer->setOption('translate_choices', false);
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    }
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    $renderer->setParent($this->getParent());
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    return $renderer;
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  }
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}