/**
* Instantiates the plugin and setup all modules.
*
* @since 1.0.0
*/
function visualizer_launch()
{
// setup environment
define('VISUALIZER_BASEFILE', __FILE__);
define('VISUALIZER_ABSURL', plugins_url('/', __FILE__));
define('VISUALIZER_ABSPATH', dirname(__FILE__));
if (!defined('VISUALIZER_CSV_DELIMITER')) {
define('VISUALIZER_CSV_DELIMITER', ',');
}
if (!defined('VISUALIZER_CSV_ENCLOSURE')) {
define('VISUALIZER_CSV_ENCLOSURE', '"');
}
// don't load the plugin if cron job is running or doing autosave
$doing_autosave = defined('DOING_AUTOSAVE') && DOING_AUTOSAVE;
$doing_cron = defined('DOING_CRON') && DOING_CRON;
$doing_ajax = defined('DOING_AJAX') && DOING_AJAX;
if ($doing_autosave || $doing_cron) {
return;
}
// instantiate the plugin
$plugin = Visualizer_Plugin::instance();
// set general modules
$plugin->setModule(Visualizer_Module_Setup::NAME);
$plugin->setModule(Visualizer_Module_Sources::NAME);
if ($doing_ajax) {
// set ajax modules
$plugin->setModule(Visualizer_Module_Chart::NAME);
} else {
if (is_admin()) {
// set admin modules
$plugin->setModule(Visualizer_Module_Admin::NAME);
} else {
// set frontend modules
$plugin->setModule(Visualizer_Module_Frontend::NAME);
}
}
}
/**
* Handles chart type selection page.
*
* @since 1.0.0
*
* @access private
*/
private function _handleTypesPage()
{
// process post request
if ($_SERVER['REQUEST_METHOD'] == 'POST' && wp_verify_nonce(filter_input(INPUT_POST, 'nonce'))) {
$type = filter_input(INPUT_POST, 'type');
if (in_array($type, Visualizer_Plugin::getChartTypes())) {
// save new chart type
update_post_meta($this->_chart->ID, Visualizer_Plugin::CF_CHART_TYPE, $type);
// if the chart has default data, update it with appropriate default data for new type
if (filter_var(get_post_meta($this->_chart->ID, Visualizer_Plugin::CF_DEFAULT_DATA, true), FILTER_VALIDATE_BOOLEAN)) {
$source = new Visualizer_Source_Csv(VISUALIZER_ABSPATH . DIRECTORY_SEPARATOR . 'samples' . DIRECTORY_SEPARATOR . $type . '.csv');
$source->fetch();
$this->_chart->post_content = $source->getData();
wp_update_post($this->_chart->to_array());
update_post_meta($this->_chart->ID, Visualizer_Plugin::CF_SERIES, $source->getSeries());
}
// redirect to next tab
wp_redirect(add_query_arg('tab', 'data'));
return;
}
}
$render = new Visualizer_Render_Page_Types();
$render->type = get_post_meta($this->_chart->ID, Visualizer_Plugin::CF_CHART_TYPE, true);
$render->types = Visualizer_Plugin::getChartTypes();
$render->chart = $this->_chart;
wp_enqueue_style('visualizer-frame');
wp_enqueue_script('visualizer-frame');
wp_iframe(array($render, 'render'));
}
/**
* Returns singletone instance of the plugin.
*
* @since 1.0.0
*
* @static
* @access public
* @return Visualizer_Plugin
*/
public static function instance()
{
if (is_null(self::$_instance)) {
self::$_instance = new Visualizer_Plugin();
}
return self::$_instance;
}
/**
* Renders visualizer library page.
*
* @since 1.0.0
*
* @access public
*/
public function renderLibraryPage()
{
// get current page
$page = filter_input(INPUT_GET, 'vpage', FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'default' => 1)));
// the initial query arguments to fetch charts
$query_args = array('post_type' => Visualizer_Plugin::CPT_VISUALIZER, 'posts_per_page' => 6, 'paged' => $page);
// add chart type filter to the query arguments
$filter = filter_input(INPUT_GET, 'type');
if ($filter && in_array($filter, Visualizer_Plugin::getChartTypes())) {
$query_args['meta_query'] = array(array('key' => Visualizer_Plugin::CF_CHART_TYPE, 'value' => $filter, 'compare' => '='));
} else {
$filter = 'all';
}
// fetch charts
$charts = array();
$query = new WP_Query($query_args);
while ($query->have_posts()) {
$chart = $query->next_post();
// fetch and update settings
$settings = get_post_meta($chart->ID, Visualizer_Plugin::CF_SETTINGS, true);
unset($settings['height'], $settings['width']);
$type = get_post_meta($chart->ID, Visualizer_Plugin::CF_CHART_TYPE, true);
$series = apply_filters(Visualizer_Plugin::FILTER_GET_CHART_SERIES, get_post_meta($chart->ID, Visualizer_Plugin::CF_SERIES, true), $chart->ID, $type);
$data = apply_filters(Visualizer_Plugin::FILTER_GET_CHART_DATA, unserialize($chart->post_content), $chart->ID, $type);
// add chart to the array
$charts['visualizer-' . $chart->ID] = array('id' => $chart->ID, 'type' => $type, 'series' => $series, 'settings' => $settings, 'data' => $data);
}
// enqueue charts array
$ajaxurl = admin_url('admin-ajax.php');
wp_localize_script('visualizer-library', 'visualizer', array('charts' => $charts, 'urls' => array('base' => add_query_arg('vpage', false), 'create' => add_query_arg(array('action' => Visualizer_Plugin::ACTION_CREATE_CHART, 'library' => 'yes'), $ajaxurl), 'edit' => add_query_arg(array('action' => Visualizer_Plugin::ACTION_EDIT_CHART, 'library' => 'yes'), $ajaxurl))));
// render library page
$render = new Visualizer_Render_Library();
$render->charts = $charts;
$render->type = $filter;
$render->types = self::_getChartTypesLocalized();
$render->pagination = paginate_links(array('base' => add_query_arg('vpage', '%#%'), 'format' => '', 'current' => $page, 'total' => $query->max_num_pages, 'type' => 'array'));
$render->render();
}
