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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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* Frontend 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 1.0.0 |
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*/ |
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class Visualizer_Module_Frontend 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 charts to render. |
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* |
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* @since 1.0.0 |
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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 $_charts = array(); |
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|
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/** |
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* Constructor. |
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* |
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* @since 1.0.0 |
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* @uses add_filter() To add "do_shortcode" hook for "widget_text" and "term_description" filters. |
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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->_addAction( 'wp_enqueue_scripts', 'enqueueScripts' ); |
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$this->_addShortcode( 'visualizer', 'renderChart' ); |
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|
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// add do_shortocde hook for widget_text filter |
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if ( ! has_filter( 'widget_text', 'do_shortcode' ) ) { |
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add_filter( 'widget_text', 'do_shortcode' ); |
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} |
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|
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// add do_shortcode hook for term_description filter |
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if ( ! has_filter( 'term_description', 'do_shortcode' ) ) { |
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add_filter( 'term_description', 'do_shortcode' ); |
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} |
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|
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add_action( 'rest_api_init', array( $this, 'endpoint_register' ) ); |
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} |
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|
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/** |
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* Registers the endpoints |
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*/ |
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function endpoint_register() { |
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register_rest_route( |
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'visualizer/v' . VISUALIZER_REST_VERSION, |
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'/action/(?P<chart>\d+)/(?P<type>.+)/', |
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array( |
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'methods' => 'GET', |
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'callback' => array( $this, 'perform_action' ), |
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) |
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); |
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} |
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|
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/** |
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* All possible actions and their labels |
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* |
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* @access private |
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*/ |
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private function get_actions() { |
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return apply_filters( |
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'visualizer_action_buttons', array( |
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'print' => __( 'Print', 'visualizer' ), |
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'csv' => __( 'CSV', 'visualizer' ), |
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'xls' => __( 'Excel', 'visualizer' ), |
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'copy' => __( 'Copy', 'visualizer' ), |
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) |
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); |
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} |
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|
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/** |
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* The print button |
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* |
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* @since 1.0.0 |
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* |
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* @access public |
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*/ |
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public function perform_action( WP_REST_Request $params ) { |
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$chart_id = filter_var( sanitize_text_field( $params['chart'] ), FILTER_VALIDATE_INT ); |
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$type = sanitize_text_field( $params['type'] ); |
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$data = null; |
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|
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if ( ! $chart_id ) { |
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return new WP_REST_Response( array( 'error' => new WP_Error( __( 'Invalid chart ID', 'visualizer' ) ) ) ); |
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} |
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|
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if ( ! $type ) { |
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return new WP_REST_Response( array( 'error' => new WP_Error( __( 'Invalid action', 'visualizer' ) ) ) ); |
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} |
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|
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switch ( $type ) { |
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case 'print': |
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$data = $this->_getDataAs( $chart_id, 'print' ); |
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break; |
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case 'csv': |
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$data = $this->_getDataAs( $chart_id, 'csv' ); |
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break; |
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case 'xls': |
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$data = $this->_getDataAs( $chart_id, 'xls' ); |
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break; |
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default: |
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$data = apply_filters( 'visualizer_action_data', $data, $chart_id, $type ); |
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break; |
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} |
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|
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return new WP_REST_Response( array( 'data' => $data ) ); |
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} |
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|
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/** |
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* Registers scripts for charts rendering. |
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* |
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* @since 1.0.0 |
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* @uses wp_register_script To register javascript file. |
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* |
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* @access public |
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*/ |
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public function enqueueScripts() { |
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wp_register_script( 'visualizer-google-jsapi-new', '//www.gstatic.com/charts/loader.js', array(), null, true ); |
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wp_register_script( 'visualizer-google-jsapi-old', '//www.google.com/jsapi', array( 'visualizer-google-jsapi-new' ), null, true ); |
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wp_register_script( 'visualizer-render', VISUALIZER_ABSURL . 'js/render.js', array( 'visualizer-google-jsapi-old', 'jquery' ), Visualizer_Plugin::VERSION, true ); |
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wp_register_script( 'visualizer-clipboardjs', VISUALIZER_ABSURL . 'js/lib/clipboardjs/clipboard.min.js', array( 'jquery' ), Visualizer_Plugin::VERSION, true ); |
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wp_enqueue_script( 'visualizer-clipboardjs' ); |
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} |
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|
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/** |
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* Returns placeholder for chart according to visualizer shortcode attributes. |
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* |
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* @since 1.0.0 |
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* @uses shortcode_atts() To parse income shortocdes. |
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* @uses apply_filters() To filter chart's data and series arrays. |
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* @uses get_post_meta() To fetch chart's meta information. |
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* @uses wp_enqueue_script() To enqueue charts render script. |
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* @uses wp_localize_script() To add chart data to the page inline script. |
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* |
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* @access public |
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* @param array $atts The array of shortcode attributes. |
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*/ |
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public function renderChart( $atts ) { |
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$atts = shortcode_atts( |
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array( |
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'id' => false, // chart id |
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'class' => false, // chart class |
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'series' => false, // series filter hook |
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'data' => false, // data filter hook |
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'settings' => false, // data filter hook |
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), $atts |
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); |
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|
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// if empty id or chart does not exists, then return empty string |
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if ( ! $atts['id'] || ! ( $chart = get_post( $atts['id'] ) ) || $chart->post_type != Visualizer_Plugin::CPT_VISUALIZER ) { |
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return ''; |
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} |
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|
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$id = 'visualizer-' . $atts['id']; |
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$defaultClass = 'visualizer-front'; |
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$class = apply_filters( Visualizer_Plugin::FILTER_CHART_WRAPPER_CLASS, $atts['class'], $atts['id'] ); |
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$class = $defaultClass . ' ' . $class . ' ' . 'visualizer-front-' . $atts['id']; |
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$class = ! empty( $class ) ? ' class="' . trim( $class ) . '"' : ''; |
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|
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$type = get_post_meta( $chart->ID, Visualizer_Plugin::CF_CHART_TYPE, true ); |
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|
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// faetch and update settings |
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$settings = get_post_meta( $chart->ID, Visualizer_Plugin::CF_SETTINGS, true ); |
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if ( empty( $settings['height'] ) ) { |
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$settings['height'] = '400'; |
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} |
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|
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// handle series filter hooks |
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$series = apply_filters( Visualizer_Plugin::FILTER_GET_CHART_SERIES, get_post_meta( $chart->ID, Visualizer_Plugin::CF_SERIES, true ), $chart->ID, $type ); |
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if ( ! empty( $atts['series'] ) ) { |
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$series = apply_filters( $atts['series'], $series, $chart->ID, $type ); |
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} |
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// handle settings filter hooks |
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$settings = apply_filters( Visualizer_Plugin::FILTER_GET_CHART_SETTINGS, $settings, $chart->ID, $type ); |
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if ( ! empty( $atts['settings'] ) ) { |
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$settings = apply_filters( $atts['settings'], $settings, $chart->ID, $type ); |
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} |
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|
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// handle data filter hooks |
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$data = apply_filters( Visualizer_Plugin::FILTER_GET_CHART_DATA, unserialize( $chart->post_content ), $chart->ID, $type ); |
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if ( ! empty( $atts['data'] ) ) { |
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$data = apply_filters( $atts['data'], $data, $chart->ID, $type ); |
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} |
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|
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$id = $id . '-' . rand(); |
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|
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// add chart to the array |
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$this->_charts[ $id ] = array( |
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'type' => $type, |
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'series' => $series, |
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'settings' => $settings, |
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'data' => $data, |
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); |
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|
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// enqueue visualizer render and update render localizations |
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wp_enqueue_script( 'visualizer-render' ); |
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wp_localize_script( |
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'visualizer-render', 'visualizer', array( |
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'charts' => $this->_charts, |
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'map_api_key' => get_option( 'visualizer-map-api-key' ), |
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'rest_url' => rest_url( 'visualizer/v' . VISUALIZER_REST_VERSION . '/action/#id#/#type#/' ), |
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'i10n' => array( |
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'copied' => __( 'Copied!', 'visualizer' ), |
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), |
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) |
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); |
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|
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$actions_div = ''; |
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if ( ! empty( $settings['actions'] ) ) { |
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$actions = $this->get_actions(); |
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$actions_div = '<div class="visualizer-actions">'; |
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foreach ( $settings['actions'] as $action_type ) { |
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$key = $action_type; |
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$mime = ''; |
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if ( strpos( $action_type, ';' ) !== false ) { |
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$array = explode( ';', $action_type ); |
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$key = $array[0]; |
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$mime = end( $array ); |
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} |
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$label = $actions[ $key ]; |
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$actions_div .= '<a href="#" class="visualizer-action visualizer-action-' . $key . '" data-visualizer-type="' . $key . '" data-visualizer-chart-id="' . $atts['id'] . '" data-visualizer-mime="' . $mime . '" title="' . $label . '" '; |
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|
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if ( 'copy' === $key ) { |
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$copy = $this->_getDataAs( $atts['id'], 'csv' ); |
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$actions_div .= ' data-clipboard-text="' . esc_attr( $copy['csv'] ) . '"'; |
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} |
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|
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$actions_div .= apply_filters( 'visualizer_action_attributes', '', $key, $atts['id'] ); |
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$actions_div .= '>' . $label . '</a> '; |
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} |
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|
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$actions_div .= '</div>'; |
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} |
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// return placeholder div |
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return $actions_div . '<div id="' . $id . '"' . $class . '></div>'; |
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} |
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|
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} |
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|
