<?php
/**
 *## TbRedactorJs class file
 *
 * @author: antonio ramirez <antonio@clevertech.biz>
 * @copyright Copyright &copy; Clevertech 2012-
 * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
 */

/**
 *## TbRedactorJs class
 *
 * WYSIWYG editor based on Redactor library.
 * @see <http://imperavi.com/redactor/docs/>
 *
 * For updates of Redactor library see <https://github.com/yiiext/imperavi-redactor-widget> by Sam Dark.
 *
 * @package booster.widgets.forms.inputs.wysiwyg
 */
class TbRedactorJS extends CInputWidget
{
	/**
	 * @var array {@link http://imperavi.com/redactor/docs/ redactor options}.
	 */
	public $editorOptions = array();

	/**
	 * @var string|null Selector pointing to textarea to initialize redactor for.
	 * Defaults to null meaning that textarea does not exist yet and will be
	 * rendered by this widget.
	 */
	public $selector;

	/**
	 * @var string Editor width
	 */
	public $width = '100%';

	/**
	 * @var string Editor height
	 */
	public $height = '400px';

	public function init()
	{
		parent::init();

		if (!isset($this->editorOptions['lang'])) {
			$this->editorOptions['lang'] = substr(Yii::app()->getLanguage(), 0, 2);
		}

		if ($this->selector === null) {
			list($this->name, $this->id) = $this->resolveNameID();
			$this->htmlOptions['id'] = $this->id;
			$this->selector = '#' . $this->id;
			if (!array_key_exists('style', $this->htmlOptions)) {
				$this->htmlOptions['style'] = "width:{$this->width};height:{$this->height};";
			}
			if ($this->hasModel()) {
				echo CHtml::activeTextArea($this->model, $this->attribute, $this->htmlOptions);
			} else {
				echo CHtml::textArea($this->name, $this->value, $this->htmlOptions);
			}
		}
		$this->registerClientScript($this->id);
	}

	/**
	 * Register required script files
	 */
	public function registerClientScript()
	{
		$assets = Bootstrap::getBooster()->assetsRegistry;

		$assets->registerPackage('redactor');

		$baseUrl = $assets->packages['redactor']['baseUrl'];

		// Prepend language file to scripts package.
		if ($this->editorOptions['lang'] != 'en') {
			$assets->registerScriptFile($baseUrl . '/lang/' . $this->editorOptions['lang'] . '.js');
		}

		if (isset($this->editorOptions['plugins'])) {
			foreach ($this->editorOptions['plugins'] as $name) {
				$filepath = Yii::getPathOfAlias('bootstrap.assets.redactor.plugins') . '/' . $name . '/' . $name;
				$url = $baseUrl . '/plugins/' . $name . '/' . $name;

				if (file_exists($filepath . '.css'))
					$assets->registerCssFile($url.'.css');

				if (file_exists($filepath . '.js'))
					$assets->registerScriptFile($url.'.js');
			}
		}

		$options = $this->editorOptions
			? CJavaScript::encode($this->editorOptions)
			: '';

		$assets->registerScript(
			uniqid(__CLASS__ . '#', true),
			"jQuery('{$this->selector}').redactor({$options});"
		);
	}
}
