<?php
/**
 *## TbGridView class file.
 *
 * @author Christoffer Niska <ChristofferNiska@gmail.com>
 * @copyright Copyright &copy; Christoffer Niska 2011-
 * @license [New BSD License](http://www.opensource.org/licenses/bsd-license.php) 
 */

Yii::import('zii.widgets.grid.CGridView');
Yii::import('ext.booster.widgets.TbDataColumn');

/**
 *## Bootstrap Zii grid view.
 *
 * @property CActiveDataProvider $dataProvider the data provider for the view.
 *
 * @package booster.widgets.grids
 */
class TbGridView extends CGridView
{
	// Table types.
	const TYPE_STRIPED = 'striped';
	const TYPE_BORDERED = 'bordered';
	const TYPE_CONDENSED = 'condensed';
	const TYPE_HOVER = 'hover';

	/**
	 * @var string|array the table type.
	 * Valid values are 'striped', 'bordered', 'condensed' and/or 'hover'.
	 */
	public $type;

	/**
	 * @var string the CSS class name for the pager container. Defaults to 'pagination'.
	 */
	public $pagerCssClass = 'no-class';

	/**
	 * @var array the configuration for the pager.
	 * Defaults to <code>array('class'=>'ext.booster.widgets.TbPager')</code>.
	 */
	public $pager = array('class' => 'booster.widgets.TbPager');

	/**
	 * @var string the URL of the CSS file used by this grid view.
	 * Defaults to false, meaning that no CSS will be included.
	 */
	public $cssFile = false;

	/**
	 * @var bool whether to make the grid responsive
	 */
	public $responsiveTable = false;

	/**
	 * @var array of additional parameters to pass to values
	 */
	public $extraParams = array();

	/**
	 *### .init()
	 *
	 * Initializes the widget.
	 */
	public function init() {
		
		parent::init();

		$classes = array('table');
		if (isset($this->type)) {
			if (is_string($this->type)) {
				$this->type = explode(' ', $this->type);
			}

			if (!empty($this->type)) {
				$validTypes = array(self::TYPE_STRIPED, self::TYPE_BORDERED, self::TYPE_CONDENSED, self::TYPE_HOVER);

				foreach ($this->type as $type) {
					if (in_array($type, $validTypes)) {
						$classes[] = 'table-' . $type;
					}
				}
			}
		}

		if (!empty($classes)) {
			$classes = implode(' ', $classes);
			if (isset($this->itemsCssClass)) {
				$this->itemsCssClass .= ' ' . $classes;
			} else {
				$this->itemsCssClass = $classes;
			}
		}

        $booster = Booster::getBooster();
		$popover = $booster->popoverSelector;
		$tooltip = $booster->tooltipSelector;

		$afterAjaxUpdate = "js:function() {
			jQuery('.popover').remove();
			jQuery('{$popover}').popover();
			jQuery('.tooltip').remove();
			jQuery('{$tooltip}').tooltip();
		}";

		if (!isset($this->afterAjaxUpdate)) {
			$this->afterAjaxUpdate = $afterAjaxUpdate;
		}
	}

	/**
	 *### .initColumns()
	 *
	 * Creates column objects and initializes them.
	 */
	protected function initColumns()
	{
		foreach ($this->columns as $i => $column) {
			if (is_array($column) && !isset($column['class'])) {
				$this->columns[$i]['class'] = 'booster.widgets.TbDataColumn';
			}
		}

		parent::initColumns();

		if ($this->responsiveTable) {
			$this->writeResponsiveCss();
		}
	}

	/**
	 *### .createDataColumn()
	 *
	 * Creates a column based on a shortcut column specification string.
	 *
	 * @param mixed $text the column specification string
	 *
	 * @return \TbDataColumn|\CDataColumn the column instance
	 * @throws CException if the column format is incorrect
	 */
	protected function createDataColumn($text)
	{
		if (!preg_match('/^([\w\.]+)(:(\w*))?(:(.*))?$/', $text, $matches)) {
			throw new CException(Yii::t(
				'zii',
				'The column must be specified in the format of "Name:Type:Label", where "Type" and "Label" are optional.'
			));
		}

		$column = new TbDataColumn($this);
		$column->name = $matches[1];

		if (isset($matches[3]) && $matches[3] !== '') {
			$column->type = $matches[3];
		}

		if (isset($matches[5])) {
			$column->header = $matches[5];
		}

		return $column;
	}

	/**
	 *### .writeResponsiveCss()
	 *
	 * Writes responsiveCSS
	 */
	protected function writeResponsiveCss()
	{
		$cnt = 1;
		$labels = '';
		foreach ($this->columns as $column) {
			/** @var TbDataColumn $column */
			ob_start();
			$column->renderHeaderCell();
			$name = strip_tags(ob_get_clean());

			$labels .= "#$this->id td:nth-of-type($cnt):before { content: '{$name}'; }\n";
			$cnt++;
		}

		$css = <<<EOD
@media
	only screen and (max-width: 760px),
	(min-device-width: 768px) and (max-device-width: 1024px)  {

		/* Force table to not be like tables anymore */
		#{$this->id} table,#{$this->id} thead,#{$this->id} tbody,#{$this->id} th,#{$this->id} td,#{$this->id} tr {
			display: block;
		}

		/* Hide table headers (but not display: none;, for accessibility) */
		#{$this->id} thead tr {
			position: absolute;
			top: -9999px;
			left: -9999px;
		}

		#{$this->id} tr { border: 1px solid #ccc; }

		#{$this->id} td {
			/* Behave  like a "row" */
			border: none;
			border-bottom: 1px solid #eee;
			position: relative;
			padding-left: 50%;
		}

		#{$this->id} td:before {
			/* Now like a table header */
			position: absolute;
			/* Top/left values mimic padding */
			top: 6px;
			left: 6px;
			width: 45%;
			padding-right: 10px;
			white-space: nowrap;
		}
		.grid-view .button-column {
			text-align: left;
			width:auto;
		}
		/*
		Label the data
		*/
		{$labels}
	}
EOD;
		Yii::app()->clientScript->registerCss(__CLASS__ . '#' . $this->id, $css);
	}
}
