j-query-filter.php

<?php
/*
Plugin Name: J-QueryFilter
Plugin URI: http://niewiarowski.it/
Description: Advanced taxonomy and meta post filtering plugin.
Author: Jakub 'marsjaninzmarsa' Niewiarowski
Author URI: http://niewiarowski.it/
Version: 0.0.2
License: GPL v3
*/

if(!defined('J_QUERY_FILTER_V'))
	define('J_QUERY_FILTER_V', '0.0.1');

if(!extension_loaded('yaml') && !class_exists('Spyc')) {
	require_once "spyc/spyc.php";
}

spl_autoload_register(function($class) {
	if(is_file($file = dirname(__FILE__) . "/inc/$class.php")) {
		include_once $file;
	}
});


// Registering Widget
add_action('widgets_init', function() {
	return register_widget("JQueryFilterWidget");
});

add_action('wp_register_sidebar_widget', function($widget) {
	if($widget['classname'] == 'widget_j_query_filter_widget') {
		$number   = $widget['params'][0]['number'];
		if($number < 0) {
			return;
		}
		$settings = $widget['callback'][0]->get_settings();
		$settings = $settings[$number];
		$sidebarQueryFilter = new UiJQueryFilter($settings);
	}
});


// $sidebarQueryFilter->form = UiJQueryFilter::LoadYaml(dirname(__FILE__) . '/form.yaml');

add_action( 'wp_enqueue_scripts', 'enqueue_and_register_j_query_filter' );
add_action( 'wp_ajax_nopriv_sidebar_query_filter', 'j_query_filter' );
add_action( 'wp_ajax_sidebar_query_filter', 'j_query_filter' );

function enqueue_and_register_j_query_filter(){
	wp_register_script(
		'jquery-deserialize',
		plugins_url('js/jquery.deserialize.js', __FILE__),
		array('jquery'),
		'1.2.1'
	);
	wp_register_script(
		'purl',
		plugins_url('js/purl.js', __FILE__),
		array(),
		'2.3.1'
	);
	wp_register_script(
		'j-query-filter',
		plugins_url('js/j-query-filter.js', __FILE__),
		array(
			'jquery-ui-slider',
			'jquery-form',
			'jquery-deserialize',
			'jquery-color',
			'purl'
		),
		J_QUERY_FILTER_V
	);
	$instances = UiJQueryFilter::GetInstances();
	$styles = array();
	foreach (glob(plugin_dir_path( __FILE__ ).'css/*.css') as $file) {
		$styles[] = $name = basename($file, '.css');
		wp_register_style(
			'j-query-filter-'.$name,
			plugins_url('css/'.$name.'.css', __FILE__),
			array(),
			J_QUERY_FILTER_V
		);
	}
	if(!empty($instances)) {
		wp_enqueue_script( 'j-query-filter' );
		foreach ($instances as $instance) {
			if(in_array($name = $instance->style, $styles)) {
				wp_enqueue_style( 'j-query-filter-'.$name );
			}
		}
	}
}

function wyszukiwarka_ofert($data) {
	global $sidebarQueryFilter, $wp_query;
	if (!empty($data)) {
		$args = array(
			'post_type' => 'bm_work_offer',
			'posts_per_page' => 16,
			'offset' => (isset($_REQUEST['offset']) && $_REQUEST['offset']) ? $_REQUEST['offset'] : 0,
			'suppress_filters' => true,
			'post_status' => (in_array('administrator', wp_get_current_user()->roles)) ? 'any' : 'publish',
		);

		$args = $sidebarQueryFilter->QueryFilter($data, $args);

		$wp_query = new WP_Query($args);
		$wp_query->has_results = true;
	} else {
		$wp_query->has_results = false;
	}
}

function j_query_filter($args = false) {
	global $wp_query;
	wyszukiwarka_ofert(($args)? $args: $_GET);
	global $post;
	foreach ($wp_query->posts as $key => $post) {
		get_template_part('theme-template-parts/content/content', 'offer-item-13');
		printf('<div hidden data-lp="%s"></div>', $key + get_query_var('offset') + 1);
	}
	if($wp_query->post_count && $wp_query->post_count <= $wp_query->query_vars['posts_per_page']) {
		print('<div hidden class="eot"></div>');
	}
	if(isset($_REQUEST['search']) && !$_REQUEST['offset'] && !$wp_query->posts) {
		printf('<div class="noResults">%s</div>', __('Brak wyników wyszukiwania', 'twentythirteen'));
	}
	if (defined('DOING_AJAX') && DOING_AJAX) exit;
}

add_action('pre_get_posts', function($query) {
	if($query->is_main_query() && $query->is_post_type_archive() && in_array($pt = $query->query_vars['post_type'], UiJQueryFilter::GetFilteredPT())) {
		$sidebarQueryFilter = UiJQueryFilter::GetFilterForPT($pt);
		$args = array(
			// 'post_type' => $pt,
		);
		$query->parse_query(array_merge($query->query, $sidebarQueryFilter->QueryFilter($_GET, $args)));
	}
	return;
});