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<?php |
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|
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// +----------------------------------------------------------------------+ |
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// | Copyright 2013 Madpixels (email : visualizer@madpixels.net) | |
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// +----------------------------------------------------------------------+ |
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// | This program is free software; you can redistribute it and/or modify | |
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// | it under the terms of the GNU General Public License, version 2, as | |
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// | published by the Free Software Foundation. | |
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// | | |
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// | This program is distributed in the hope that it will be useful, | |
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// | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
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// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
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// | GNU General Public License for more details. | |
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// | | |
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// | You should have received a copy of the GNU General Public License | |
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// | along with this program; if not, write to the Free Software | |
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// | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
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// | MA 02110-1301 USA | |
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// +----------------------------------------------------------------------+ |
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// | Author: Eugene Manuilov <eugene@manuilov.org> | |
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// +----------------------------------------------------------------------+ |
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/** |
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* Sources module class. |
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* |
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* @category Visualizer |
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* @package Module |
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* |
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* @since 1.1.0 |
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*/ |
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class Visualizer_Module_Sources extends Visualizer_Module { |
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|
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const NAME = __CLASS__; |
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|
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/** |
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* The array of fetched sources. |
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* |
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* @since 1.1.0 |
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* |
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* @access private |
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* @var array |
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*/ |
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private $_sources = array(); |
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|
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/** |
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* Constructor. |
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* |
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* @since 1.1.0 |
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* |
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* @access public |
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* @param Visualizer_Plugin $plugin The instance of the plugin. |
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*/ |
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public function __construct( Visualizer_Plugin $plugin ) { |
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parent::__construct( $plugin ); |
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|
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$this->_addFilter( Visualizer_Plugin::FILTER_GET_CHART_SERIES, 'filterChartSeries', 1, 2 ); |
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$this->_addFilter( Visualizer_Plugin::FILTER_GET_CHART_DATA, 'filterChartData', 1, 2 ); |
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} |
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|
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/** |
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* Returns appropriate source object for a chart. |
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* |
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* @since 1.1.0 |
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* |
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* @access private |
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* @param int $chart_id The chart id. |
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* @return Visualizer_Source The source object if source exists, otherwise FALSE. |
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*/ |
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private function _getSource( $chart_id ) { |
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if ( ! isset( $this->_sources[ $chart_id ] ) ) { |
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$class = get_post_meta( $chart_id, Visualizer_Plugin::CF_SOURCE, true ); |
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if ( ! class_exists( $class, true ) ) { |
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return false; |
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} |
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|
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$this->_sources[ $chart_id ] = new $class(); |
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} |
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|
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return $this->_sources[ $chart_id ]; |
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} |
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|
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/** |
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* Filters chart sereis. |
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* |
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* @since 1.1.0 |
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* |
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* @access public |
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* @param array $series The array of chart series. |
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* @param int $chart_id The chart id. |
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* @return array The array of filtered series. |
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*/ |
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public function filterChartSeries( $series, $chart_id ) { |
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$source = $this->_getSource( $chart_id ); |
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if ( ! $source ) { |
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return $series; |
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} |
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|
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return $source->repopulateSeries( $series, $chart_id ); |
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} |
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|
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/** |
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* Filters chart data. |
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* |
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* @since 1.1.0 |
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* |
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* @access public |
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* @param array $data The array of chart data. |
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* @param int $chart_id The chart id. |
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* @return array The array of filtered data. |
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*/ |
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public function filterChartData( $data, $chart_id ) { |
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$source = $this->_getSource( $chart_id ); |
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if ( ! $source ) { |
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return $data; |
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} |
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|
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return $source->repopulateData( $data, $chart_id ); |
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} |
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|
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} |
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