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infinity.php
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infinity.php
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<?php
/*
Plugin Name: Infinite Scroll
Plugin URI: http://uzbuz.com
Description: Adds infinite scrolling support to the front-end blog post view for themes, pulling the next set of posts automatically into view when the reader approaches the bottom of the page.
Version: 5
Author: Josua
Author URI: http://uzbuz.com
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/
/**
* Class: The_Infinite_Scroll relies on add_theme_support, expects specific
* styling from each theme; including fixed footer.
*/
class The_Infinite_Scroll {
/**
*
*/
function __construct() {
add_filter( 'pre_get_posts', array( $this, 'posts_per_page_query' ) );
add_action( 'admin_init', array( $this, 'settings_api_init' ) );
add_action( 'template_redirect', array( $this, 'action_template_redirect' ) );
add_action( 'template_redirect', array( $this, 'ajax_response' ) );
add_action( 'wp_enqueue_scripts', array( $this, 'action_enqueue_scripts'), 11);
add_action( 'custom_ajax_infinite_scroll', array( $this, 'query' ) );
add_action( 'the_post', array( $this, 'preserve_more_tag' ) );
add_action( 'get_footer', array( $this, 'footer' ) );
// Parse IS settings from theme
self::get_settings();
}
/**
* Initialize our static variables
*/
static $the_time = null;
static $settings = null; // Don't access directly, instead use self::get_settings().
static $option_name_enabled = 'infinite_scroll';
/**
* Parse IS settings provided by theme
*
* @uses get_theme_support, infinite_scroll_has_footer_widgets, sanitize_title, add_action, get_option, wp_parse_args, is_active_sidebar
* @return object
*/
static function get_settings() {
if ( is_null( self::$settings ) ) {
$css_pattern = '#[^A-Z\d\-_]#i';
$settings = $defaults = array(
'type' => 'scroll', // scroll | click
'requested_type' => 'scroll', // store the original type for use when logic overrides it
'footer_widgets' => false, // true | false | sidebar_id | array of sidebar_ids -- last two are checked with is_active_sidebar
'container' => 'content', // container html id
'wrapper' => true, // true | false | html class
'render' => false, // optional function, otherwise the `content` template part will be used
'footer' => true, // boolean to enable or disable the infinite footer | string to provide an html id to derive footer width from
'posts_per_page' => false // int | false to set based on IS type
);
// Validate settings passed through add_theme_support()
$_settings = get_theme_support( 'infinite-scroll' );
if ( is_array( $_settings ) ) {
// Preferred implementation, where theme provides an array of options
if ( isset( $_settings[0] ) && is_array( $_settings[0] ) ) {
foreach ( $_settings[0] as $key => $value ) {
switch ( $key ) {
case 'type' :
if ( in_array( $value, array( 'scroll', 'click' ) ) )
$settings[ $key ] = $settings['requested_type'] = $value;
break;
case 'footer_widgets' :
if ( is_string( $value ) )
$settings[ $key ] = sanitize_title( $value );
elseif ( is_array( $value ) )
$settings[ $key ] = array_map( 'sanitize_title', $value );
elseif ( is_bool( $value ) )
$settings[ $key ] = $value;
break;
case 'container' :
case 'wrapper' :
if ( 'wrapper' == $key && is_bool( $value ) ) {
$settings[ $key ] = $value;
}
else {
$value = preg_replace( $css_pattern, '', $value );
if ( ! empty( $value ) )
$settings[ $key ] = $value;
}
break;
case 'render' :
if ( false !== $value && is_callable( $value ) ) {
$settings[ $key ] = $value;
add_action( 'infinite_scroll_render', $value );
}
break;
case 'footer' :
if ( is_bool( $value ) ) {
$settings[ $key ] = $value;
}
elseif ( is_string( $value ) ) {
$value = preg_replace( $css_pattern, '', $value );
if ( ! empty( $value ) )
$settings[ $key ] = $value;
}
break;
case 'posts_per_page' :
if ( is_numeric( $value ) )
$settings[ $key ] = (int) $value;
break;
// Add our custom posts arguments
case 'posts_args' :
$settings[ $key ] = $value;
break;
default:
continue;
break;
}
}
}
// Checks below are for backwards compatibility
elseif ( is_string( $_settings[0] ) ) {
// Container to append new posts to
$settings['container'] = preg_replace( $css_pattern, '', $_settings[0] );
// Wrap IS elements?
if ( isset( $_settings[1] ) )
$settings['wrapper'] = (bool) $_settings[1];
}
}
// Always ensure all values are present in the final array
$settings = wp_parse_args( $settings, $defaults );
// Check if a legacy `infinite_scroll_has_footer_widgets()` function is defined and override the footer_widgets parameter's value.
// Otherwise, if a widget area ID or array of IDs was provided in the footer_widgets parameter, check if any contains any widgets.
// It is safe to use `is_active_sidebar()` before the sidebar is registered as this function doesn't check for a sidebar's existence when determining if it contains any widgets.
if ( function_exists( 'infinite_scroll_has_footer_widgets' ) ) {
$settings['footer_widgets'] = (bool) infinite_scroll_has_footer_widgets();
}
elseif ( is_array( $settings['footer_widgets'] ) ) {
$sidebar_ids = $settings['footer_widgets'];
$settings['footer_widgets'] = false;
foreach ( $sidebar_ids as $sidebar_id ) {
if ( is_active_sidebar( $sidebar_id ) ) {
$settings['footer_widgets'] = true;
break;
}
}
unset( $sidebar_ids );
unset( $sidebar_id );
}
elseif ( is_string( $settings['footer_widgets'] ) ) {
$settings['footer_widgets'] = (bool) is_active_sidebar( $settings['footer_widgets'] );
}
// For complex logic, let themes filter the `footer_widgets` parameter.
$settings['footer_widgets'] = apply_filters( 'infinite_scroll_has_footer_widgets', $settings['footer_widgets'] );
// Finally, after all of the sidebar checks and filtering, ensure that a boolean value is present, otherwise set to default of `false`.
if ( ! is_bool( $settings['footer_widgets'] ) )
$settings['footer_widgets'] = false;
// Ensure that IS is enabled and no footer widgets exist if the IS type isn't already "click".
if ( 'click' != $settings['type'] ) {
// Check the setting status
$disabled = '' === get_option( self::$option_name_enabled ) ? true : false;
// Footer content or Reading option check
if ( $settings['footer_widgets'] || $disabled )
$settings['type'] = 'click';
}
// Backwards compatibility for posts_per_page setting
if ( false === $settings['posts_per_page'] )
$settings['posts_per_page'] = 'click' == $settings['type'] ? (int) get_option( 'posts_per_page' ) : 7;
// Store final settings in a class static to avoid reparsing
self::$settings = apply_filters( 'infinite_scroll_settings', $settings );
}
return (object) self::$settings;
}
/**
* Has infinite scroll been triggered?
*/
static function got_infinity() {
return isset( $_GET[ 'infinity' ] );
}
/**
* The more tag will be ignored by default if the blog page isn't our homepage.
* Let's force the $more global to false.
*/
function preserve_more_tag( $array ) {
global $more;
if ( self::got_infinity() )
$more = 0; //0 = show content up to the more tag. Add more link.
return $array;
}
/**
* Add a checkbox field to Settings > Reading
* for enabling infinite scroll.
*
* Only show if the current theme supports infinity.
*
* @uses current_theme_supports, add_settings_field, __, register_setting
* @action admin_init
* @return null
*/
function settings_api_init() {
if ( ! current_theme_supports( 'infinite-scroll' ) )
return;
// Add the setting field [infinite_scroll] and place it in Settings > Reading
add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . __( 'To infinity and beyond', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' );
register_setting( 'reading', self::$option_name_enabled, 'esc_attr' );
}
/**
* HTML code to display a checkbox true/false option
* for the infinite_scroll setting.
*/
function infinite_setting_html() {
$notice = '<em>' . __( "We've disabled this option for you since you have footer widgets in Appearance → Widgets, or because your theme does not support infinite scroll.", 'jetpack' ) . '</em>';
// If the blog has footer widgets, show a notice instead of the checkbox
if ( self::get_settings()->footer_widgets || 'click' == self::get_settings()->requested_type ) {
echo '<label>' . $notice . '</label>';
} else {
echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$option_name_enabled ), false ) . ' /> ' . __( 'Scroll Infinitely', 'jetpack' ) . '</br><small>' . sprintf( __( '(Shows %s posts on each load)', 'jetpack' ), number_format_i18n( self::get_settings()->posts_per_page ) ) . '</small>' . '</label>';
}
}
/**
* Does the legwork to determine whether the feature is enabled.
*
* @uses current_theme_supports, self::archive_supports_infinity, self::get_settings, self::set_last_post_time, add_filter, wp_enqueue_script, plugins_url, wp_enqueue_style, add_action
* @action template_redirect
* @return null
*/
function action_template_redirect() {
// Check that we support infinite scroll, and are on the home page.
if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() )
return;
$id = self::get_settings()->container;
// Check that we have an id.
if ( empty( $id ) )
return;
// Force set time for custom arguments
if(self::$settings['posts_args']){
$infinity_posts = array();
$post_type = self::$settings['posts_args']['post_type'];
if((is_array($post_type) && in_array('comment', $post_type) || !is_array($post_type) && $post_type=='comment')){
$args = (self::$settings['posts_args']['comment_args'])?self::$settings['posts_args']['comment_args']:array(
'orderby' => 'modified',
'order' => 'DESC'
);
$args['number'] = null; // Load all comments
$exclude = (isset($args['exclude']))?$args['exclude']:'';
unset($args['exclude']);
unset($args['success_callback']);
$comments = get_comments($args);
if(count($comments)>0) {
foreach($comments as $comment){
$post = new StdClass();
$post->ID = intval($comment->comment_ID);
$post->post_title = $comment->comment_author;
$post->post_type = 'comment';
$post->post_date = $comment->comment_date_gmt;
$post->post_date_gmt = $comment->comment_date_gmt;
$post->post_modified_gmt = $comment->comment_date_gmt;
$post->post_status = ($comment->comment_approved==1)?'approved':'pending';
$post->post_author = get_current_user_id();
$post->post_content = $comment->comment_content;
$included = true;
if(isset($exclude) && is_array($exclude) && count($exclude)>0){
foreach($exclude as $key=>$ex){
switch($key){
case 'comment_meta':
if(is_array($ex) && count($ex)>0){
foreach($ex as $cm){
${$cm['name']} = get_comment_meta($comment->comment_ID, $cm['name'], true);
if($cm['compare']=='='){
if(${$cm['name']}==$cm['value']) $included = false;
}
else if($cm['compare']=='!='){
if(${$cm['name']}!=$cm['value']) $included = false;
}
}
}
break;
}
}
}
if($included) array_push($infinity_posts, $post);
}
}
}
$args = self::$settings['posts_args'];
$exclude = (isset($args['exclude']))?$args['exclude']:'';
unset($args['exclude']);
$args['posts_per_page'] = -1; // Load all posts
$loop = new WP_Query($args);
$posts = $loop->posts;
unset($loop);
if(count($posts)>0) {
foreach($posts as $post){
$included = true;
if(isset($exclude) && is_array($exclude) && count($exclude)>0){
foreach($exclude as $key=>$ex){
switch($key){
case 'post_meta':
if(is_array($ex) && count($ex)>0){
foreach($ex as $pm){
${$pm['name']} = get_post_meta($post->ID, $pm['name'], true);
if($pm['compare']=='='){
if(${$pm['name']}==$pm['value']) $included = false;
}
else if($pm['compare']=='!='){
if(${$pm['name']}!=$pm['value']) $included = false;
}
}
}
break;
}
}
}
if($included) array_push($infinity_posts, $post);
}
unset($posts);
}
if(count($infinity_posts>0)){
$last_post = end($infinity_posts);
unset($infinity_posts);
self::$the_time = (isset($last_post->post_modified_gmt)?$last_post->post_modified_gmt:'');
}
}
// Bail if there are not enough posts for infinity.
if ( ! self::set_last_post_time() )
return;
// Add a class to the body.
add_filter( 'body_class', array( $this, 'body_class' ) );
// Add our scripts.
wp_enqueue_script( 'the-neverending-homepage', plugins_url( 'infinity.js', __FILE__ ), array( 'jquery' ), '20121205' );
// Add our default styles.
wp_enqueue_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20120612' );
add_action( 'wp_head', array( $this, 'action_wp_head' ), 2 );
add_action( 'wp_footer', array( $this, 'action_wp_footer' ), 99999999 );
add_filter( 'infinite_scroll_results', array( $this, 'filter_infinite_scroll_results' ) );
}
/**
* Enqueue spinner scripts.
*/
function action_enqueue_scripts() {
if(!wp_script_is('toolbox-spinner')){
wp_enqueue_script('toolbox-spinner', plugins_url('spinner.min.js', __FILE__), array('jquery'), '20121205');
}
}
/**
* Adds an 'infinite-scroll' class to the body.
*/
function body_class( $classes ) {
$classes[] = 'infinite-scroll';
if ( 'scroll' == self::get_settings()->type )
$classes[] = 'neverending';
return $classes;
}
/**
* Grab the timestamp for the last post.
* @return string 'Y-m-d H:i:s' or null
*/
function set_last_post_time( $date = false ) {
global $posts;
$count = count( $posts );
if ( ! empty( $date ) && preg_match( '|\d{4}\-\d{2}\-\d{2}|', $_GET['date'] ) ) {
self::$the_time = "$date 00:00:00";
return self::$the_time;
}
// If we don't have enough posts for infinity, return early
if ( ! $count || $count < self::get_settings()->posts_per_page )
return self::$the_time;
$last_post = end( $posts );
// If the function is called again but we already have a value, return it
if ( null != self::$the_time ) {
return self::$the_time;
}
else if ( isset( $last_post->post_date_gmt ) ) {
// Grab the latest post time in Y-m-d H:i:s gmt format
self::$the_time = $last_post->post_date_gmt;
}
return self::$the_time;
}
/**
* Create a where clause that will make sure post queries
* will always return results prior to (descending sort)
* or before (ascending sort) the last post date.
*
* @param string $where
* @param object $query
* @filter posts_where
* @return string
*/
function query_time_filter( $where, $query ) {
global $wpdb;
$operator = 'ASC' == $query->get( 'order' ) ? '>' : '<';
// Construct the date query using our timestamp
$where .= $wpdb->prepare( " AND post_date_gmt {$operator} %s", self::set_last_post_time() );
return $where;
}
/**
* Let's overwrite the default post_per_page setting to always display a fixed amount.
*
* @global $wp_the_query Used to provide compatibility back to WP 3.2
* @param object $query
* @uses self::archive_supports_infinity, self::get_settings
* @return null
*/
function posts_per_page_query( $query ) {
// Run this only if the location is outside admin,
// otherwise the modification to $wp_the_query may cause some unwanted bug
if(!function_exists('get_current_screen')){
global $wp_the_query;
if ( self::archive_supports_infinity() && $query === $wp_the_query ) // After 3.3, this line would be: if ( self::archive_supports_infinity() && $query->is_main_query() )
$query->set( 'posts_per_page', self::get_settings()->posts_per_page );
}
}
/**
* Check if the IS output should be wrapped in a div.
* Setting value can be a boolean or a string specifying the class applied to the div.
*
* @uses self::get_settings
* @return bool
*/
function has_wrapper() {
return (bool) self::get_settings()->wrapper;
}
/**
* Returns the Ajax url
*/
function ajax_url() {
global $wp;
$base_url = home_url( trailingslashit( $wp->request ), is_ssl() ? 'https' : 'http' );
$ajaxurl = add_query_arg( array( 'infinity' => 'scrolling' ), $base_url );
return apply_filters( 'infinite_scroll_ajax_url', $ajaxurl );
}
/**
* Our own Ajax response, avoiding calling admin-ajax
*/
function ajax_response() {
// Only proceed if the url query has a key of "Infinity"
if ( ! self::got_infinity() )
return false;
define( 'DOING_AJAX', true );
@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
send_nosniff_header();
do_action( 'custom_ajax_infinite_scroll' );
die( '0' );
}
/**
* Prints the relevant infinite scroll settings in JS.
*
* @uses self::get_settings, esc_js, esc_url_raw, self::has_wrapper, __, apply_filters, do_action
* @action wp_head
* @return string
*/
function action_wp_head() {
global $wp_query, $wp_rewrite;
// Base JS settings
$js_settings = array(
'id' => self::get_settings()->container,
'ajaxurl' => esc_js( esc_url_raw( self::ajax_url() ) ),
'type' => esc_js( self::get_settings()->type ),
'wrapper' => self::has_wrapper(),
'wrapper_class' => is_string( self::get_settings()->wrapper ) ? esc_js( self::get_settings()->wrapper ) : 'infinite-wrap',
'footer' => is_string( self::get_settings()->footer ) ? esc_js( self::get_settings()->footer ) : self::get_settings()->footer,
'text' => esc_js( __( 'Load more posts', 'jetpack' ) ),
'totop' => esc_js( __( 'Scroll back to top', 'jetpack' ) ),
'order' => 'DESC',
'scripts' => array(),
'styles' => array(),
'google_analytics' => false,
'offset' => $wp_query->get( 'paged' ),
'history' => array(
'host' => preg_replace( '#^http(s)?://#i', '', untrailingslashit( get_option( 'home' ) ) ),
'path' => self::get_request_path(),
'use_trailing_slashes' => $wp_rewrite->use_trailing_slashes
)
);
// Remove the scripts and styles parameters for custom post infinite-scroll
if(self::$settings['posts_args']){
unset($js_settings['scripts']);
unset($js_settings['styles']);
}
// Optional order param
if ( isset( $_GET['order'] ) ) {
$order = strtoupper( $_GET['order'] );
if ( in_array( $order, array( 'ASC', 'DESC' ) ) )
$js_settings['order'] = $order;
}
$js_settings = apply_filters( 'infinite_scroll_js_settings', $js_settings );
do_action( 'infinite_scroll_wp_head' );
?>
<script type="text/javascript">
//<![CDATA[
var infiniteScroll = <?php echo json_encode( array( 'settings' => $js_settings ) ); ?>;
<?php if(isset(self::$settings['posts_args']['success_callback'])){ ?>
infiniteScroll.success_callback = <?=self::$settings['posts_args']['success_callback']?>
<?php } ?>
//]]>
</script>
<?php
}
/**
* Build path data for current request.
* Used for Google Analytics and pushState history tracking.
*
* @global $wp_rewrite
* @global $wp
* @uses user_trailingslashit, sanitize_text_field, add_query_arg
* @return string|bool
*/
private function get_request_path() {
global $wp_rewrite;
if ( $wp_rewrite->using_permalinks() ) {
global $wp;
// If called too early, bail
if ( ! isset( $wp->request ) )
return false;
// Determine path for paginated version of current request
if ( false != preg_match( '#' . $wp_rewrite->pagination_base . '/\d+/?$#i', $wp->request ) )
$path = preg_replace( '#' . $wp_rewrite->pagination_base . '/\d+$#i', $wp_rewrite->pagination_base . '/%d', $wp->request );
else
$path = $wp->request . '/' . $wp_rewrite->pagination_base . '/%d';
// Slashes everywhere we need them
if ( 0 !== strpos( $path, '/' ) )
$path = '/' . $path;
$path = user_trailingslashit( $path );
}
else {
// Clean up raw $_GET input
$path = array_map( 'sanitize_text_field', $_GET );
$path = array_filter( $path );
$path['paged'] = '%d';
$path = add_query_arg( $path, '/' );
}
return empty( $path ) ? false : $path;
}
/**
* Provide IS with a list of the scripts and stylesheets already present on the page.
* Since posts may contain require additional assets that haven't been loaded, this data will be used to track the additional assets.
*
* @global $wp_scripts, $wp_styles
* @action wp_footer
* @return string
*/
function action_wp_footer() {
global $wp_scripts, $wp_styles;
$scripts = is_a( $wp_scripts, 'WP_Scripts' ) ? $wp_scripts->done : array();
$styles = is_a( $wp_styles, 'WP_Styles' ) ? $wp_styles->done : array();
?><script type="text/javascript">
jQuery.extend( infiniteScroll.settings.scripts, <?php echo json_encode( $scripts ); ?> );
jQuery.extend( infiniteScroll.settings.styles, <?php echo json_encode( $styles ); ?> );
</script><?php
}
/**
* Identify additional scripts required by the latest set of IS posts and provide the necessary data to the IS response handler.
*
* @global $wp_scripts
* @uses sanitize_text_field, add_query_arg
* @filter infinite_scroll_results
* @return array
*/
function filter_infinite_scroll_results( $results ) {
// Don't bother unless there are posts to display
if ( 'success' != $results['type'] )
return $results;
// Parse and sanitize the script handles already output
$initial_scripts = isset( $_GET['scripts'] ) && is_array( $_GET['scripts'] ) ? array_map( 'sanitize_text_field', $_GET['scripts'] ) : false;
if ( is_array( $initial_scripts ) ) {
global $wp_scripts;
// Identify new scripts needed by the latest set of IS posts
$new_scripts = array_diff( $wp_scripts->done, $initial_scripts );
// If new scripts are needed, extract relevant data from $wp_scripts
if ( ! empty( $new_scripts ) ) {
$results['scripts'] = array();
foreach ( $new_scripts as $handle ) {
// Abort if somehow the handle doesn't correspond to a registered script
if ( ! isset( $wp_scripts->registered[ $handle ] ) )
continue;
// Provide basic script data
$script_data = array(
'handle' => $handle,
'footer' => ( is_array( $wp_scripts->in_footer ) && in_array( $handle, $wp_scripts->in_footer ) ),
'extra_data' => $wp_scripts->print_extra_script( $handle, false )
);
// Base source
$src = $wp_scripts->registered[ $handle ]->src;
// Take base_url into account
if ( strpos( $src, 'http' ) !== 0 )
$src = $wp_scripts->base_url . $src;
// Version and additional arguments
if ( null === $wp_scripts->registered[ $handle ]->ver )
$ver = '';
else
$ver = $wp_scripts->registered[ $handle ]->ver ? $wp_scripts->registered[ $handle ]->ver : $wp_scripts->default_version;
if ( isset($wp_scripts->args[ $handle ] ) )
$ver = $ver ? $ver . '&' . $wp_scripts->args[$handle] : $wp_scripts->args[$handle];
// Full script source with version info
$script_data['src'] = add_query_arg( 'ver', $ver, $src );
// Add script to data that will be returned to IS JS
array_push( $results['scripts'], $script_data );
}
}
}
// Parse and sanitize the style handles already output
$initial_styles = isset( $_GET['styles'] ) && is_array( $_GET['styles'] ) ? array_map( 'sanitize_text_field', $_GET['styles'] ) : false;
if ( is_array( $initial_styles ) ) {
global $wp_styles;
// Identify new styles needed by the latest set of IS posts
$new_styles = array_diff( $wp_styles->done, $initial_styles );
// If new styles are needed, extract relevant data from $wp_styles
if ( ! empty( $new_styles ) ) {
$results['styles'] = array();
foreach ( $new_styles as $handle ) {
// Abort if somehow the handle doesn't correspond to a registered stylesheet
if ( ! isset( $wp_styles->registered[ $handle ] ) )
continue;
// Provide basic style data
$style_data = array(
'handle' => $handle,
'media' => 'all'
);
// Base source
$src = $wp_styles->registered[ $handle ]->src;
// Take base_url into account
if ( strpos( $src, 'http' ) !== 0 )
$src = $wp_styles->base_url . $src;
// Version and additional arguments
if ( null === $wp_styles->registered[ $handle ]->ver )
$ver = '';
else
$ver = $wp_styles->registered[ $handle ]->ver ? $wp_styles->registered[ $handle ]->ver : $wp_styles->default_version;
if ( isset($wp_styles->args[ $handle ] ) )
$ver = $ver ? $ver . '&' . $wp_styles->args[$handle] : $wp_styles->args[$handle];
// Full stylesheet source with version info
$style_data['src'] = add_query_arg( 'ver', $ver, $src );
// Parse stylesheet's conditional comments if present, converting to logic executable in JS
if ( isset( $wp_styles->registered[ $handle ]->extra['conditional'] ) && $wp_styles->registered[ $handle ]->extra['conditional'] ) {
// First, convert conditional comment operators to standard logical operators. %ver is replaced in JS with the IE version
$style_data['conditional'] = str_replace( array(
'lte',
'lt',
'gte',
'gt'
), array(
'%ver <=',
'%ver <',
'%ver >=',
'%ver >',
), $wp_styles->registered[ $handle ]->extra['conditional'] );
// Next, replace any !IE checks. These shouldn't be present since WP's conditional stylesheet implementation doesn't support them, but someone could be _doing_it_wrong().
$style_data['conditional'] = preg_replace( '#!\s*IE(\s*\d+){0}#i', '1==2', $style_data['conditional'] );
// Lastly, remove the IE strings
$style_data['conditional'] = str_replace( 'IE', '', $style_data['conditional'] );
}
// Parse requested media context for stylesheet
if ( isset( $wp_styles->registered[ $handle ]->args ) )
$style_data['media'] = esc_attr( $wp_styles->registered[ $handle ]->args );
// Add stylesheet to data that will be returned to IS JS
array_push( $results['styles'], $style_data );
}
}
}
// Lastly, return the IS results array
return $results;
}
/**
* Runs the query and returns the results via JSON.
* Triggered by an AJAX request.
*
* @global $wp_query
* @global $wp_the_query
* @uses current_user_can, get_option, self::set_last_post_time, current_user_can, apply_filters, self::get_settings, add_filter, WP_Query, remove_filter, have_posts, wp_head, do_action, add_action, this::render, this::has_wrapper, esc_attr, wp_footer, sharing_register_post_for_share_counts, get_the_id
* @return string or null
*/
function query() {
global $wp_query, $wp_the_query;
// Sometimes page=1 is redirected by wordpress to /1/. We need to trick it.
if(!isset($_GET['page']) && basename($_SERVER['REQUEST_URI'])){
//$_GET['page'] = basename($_SERVER['REQUEST_URI']);
$subject = $_SERVER['REQUEST_URI'];
$pattern = '/(\/toolbox\/dashboard\/|\/showroom\/|\/reviews\/|\/)([0-9]*)?\//';
preg_match($pattern, $subject, $matches);
$_GET['page'] = isset($matches[2])?$matches[2]:9999;
}
if ( ! isset( $_GET['page'] ) || ! current_theme_supports( 'infinite-scroll' ) )
die;
$page = (int) $_GET['page'];
$sticky = get_option( 'sticky_posts' );
if ( ! empty( $_GET['date'] ) )
self::set_last_post_time( $_GET['date'] );
$post_status = array( 'publish' );
if ( current_user_can( 'read_private_posts' ) )
array_push( $post_status, 'private' );
$order = in_array( $_GET['order'], array( 'ASC', 'DESC' ) ) ? $_GET['order'] : 'DESC';
$custom_fetch_with_comments = false;
// When using custom arguments, replace default settings with our settings
if(self::get_settings()->posts_args){
$wp_the_query->query_vars = self::get_settings()->posts_args;
$post_type = self::get_settings()->posts_args['post_type'];
if((is_array($post_type) && in_array('comment', $post_type) || !is_array($post_type) && $post_type=='comment')){
$custom_fetch_with_comments = true;
}
}
/*
* Modify a little bit, if the args has post type comment,
* but please preserve original plugin functionality
*/
if(self::get_settings()->posts_args){
$infinity_posts = array();
if(isset($_GET['type']) && $_GET['type']!=''){
self::$settings['posts_args']['post_type'] = array($_GET['type']);
if($_GET['type']!='review') $custom_fetch_with_comments = false;
}
if($custom_fetch_with_comments){
$args = (self::$settings['posts_args']['comment_args'])?self::$settings['posts_args']['comment_args']:array(
'orderby' => 'modified',
'order' => 'DESC'
);
$args['number'] = null; // Load all comments
$comments_exclude = (isset($args['exclude']))?$args['exclude']:'';
unset($args['exclude']);
unset($args['success_callback']);
$comments = get_comments($args);
/*
* Make comments as posts
*/
if(count($comments)>0) {
foreach($comments as $comment){
$post = new StdClass();
$post->ID = intval($comment->comment_ID);
$post->post_title = $comment->comment_author;
$post->post_type = 'comment';
$post->post_date = $comment->comment_date;
$post->post_date_gmt = $comment->comment_date_gmt;
$post->post_modified_gmt = $comment->comment_date_gmt;
$post->post_status = ($comment->comment_approved==1)?'approved':'pending';
$post->post_author = get_current_user_id();
$post->post_content = $comment->comment_content;
array_push($infinity_posts, $post);
}
unset($loaded_posts);
}
}
$args = self::$settings['posts_args'];
$posts_exclude = (isset($args['exclude']))?$args['exclude']:'';
unset($args['exclude']);
$args['posts_per_page'] = -1; // Load all posts
$loop = new WP_Query($args);
$posts = $loop->posts;
if(count($posts)>0) {
foreach($posts as $post){
array_push($infinity_posts, $post);
}
unset($posts);
}
$loaded_posts = array();
$per_page = self::$settings['posts_args']['posts_per_page'];
if(count($infinity_posts)>0){
function isort($a,$b) {
return strcmp($a->post_modified_gmt, $b->post_modified_gmt)<0;
}
usort($infinity_posts, "isort");
if($custom_fetch_with_comments){
$projects_count = 0;
$reviews_count = 0;
$init_fetch = array();
for($i=0;$i<count($infinity_posts) && $i<$per_page;$i++){
$ip = $infinity_posts[$i];
if($ip->post_type=="showroom") $projects_count++;
if($ip->post_type=="comment") $reviews_count++;
array_push($init_fetch, $ip);
}
$next_projects = array();
$next_reviews = array();
if($projects_count<$per_page || $reviews_count<$per_page){
if(count($infinity_posts)>$per_page){
for($i=$per_page;$i<count($infinity_posts) && ($projects_count<$per_page || $reviews_count<$per_page);$i++){
$ip = $infinity_posts[$i];
if($ip->post_type=="showroom" && $projects_count<$per_page){
array_push($next_projects, $ip);
$projects_count++;
unset($infinity_posts[$i]);
}
if($ip->post_type=="comment" && $reviews_count<$per_page){
array_push($next_reviews, $ip);
$reviews_count++;
unset($infinity_posts[$i]);
}
}
}
}
$reset_infinity = array_merge($infinity_posts);
$rest_infinity = array();
if(count($reset_infinity)>$per_page){
for($i=$per_page;$i<count($reset_infinity);$i++){
array_push($rest_infinity, $reset_infinity[$i]);
}
}
$infinity_posts = array_merge($init_fetch, $next_projects);
$infinity_posts = array_merge($infinity_posts, $next_reviews);
unset($next_projects);
unset($next_reviews);
usort($infinity_posts, "isort");
$infinity_posts = array_merge($infinity_posts, $rest_infinity);
unset($rest_infinity);
}
$count_infinity = count($infinity_posts);
for($i=$page*$per_page;$i<($page*$per_page)+$per_page && $i<$count_infinity;$i++){
$included = true;
if($infinity_posts[$i]->post_type=='comment'){
if(isset($comments_exclude) && is_array($comments_exclude) && count($comments_exclude)>0){
foreach($comments_exclude as $key=>$ex){
switch($key){
case 'comment_meta':
if(is_array($ex) && count($ex)>0){
foreach($ex as $cm){
${$cm['name']} = get_comment_meta($infinity_posts[$i]->ID, $cm['name'], true);
if($cm['compare']=='='){
if(${$cm['name']}==$cm['value']) $included = false;
}
else if($cm['compare']=='!='){
if(${$cm['name']}!=$cm['value']) $included = false;
}
}
}
break;
}
}
}
} else {
if(isset($posts_exclude) && is_array($posts_exclude) && count($posts_exclude)>0){
foreach($posts_exclude as $key=>$ex){
switch($key){
case 'post_meta':
if(is_array($ex) && count($ex)>0){
foreach($ex as $pm){
${$pm['name']} = get_post_meta($infinity_posts[$i]->ID, $pm['name'], true);
if($pm['compare']=='='){
if(${$pm['name']}==$pm['value']) $included = false;
}
else if($pm['compare']=='!='){
if(${$pm['name']}!=$pm['value']) $included = false;
}
}
}
break;
}
}
}
}
if($included) array_push($loaded_posts, $infinity_posts[$i]);
}
}
/*
* Resemble the actual $wp_query content
*/