| 1 |
<?php |
| 2 |
|
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/* |
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Plugin Name: The Neverending Home Page. |
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Plugin URI: http://automattic.com/ |
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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. |
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Version: 1.1 |
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Author: Automattic |
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Author URI: http://automattic.com/ |
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License: GNU General Public License v2 or later |
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License URI: http://www.gnu.org/licenses/gpl-2.0.html |
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*/ |
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|
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/** |
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* Class: The_Neverending_Home_Page relies on add_theme_support, expects specific |
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* styling from each theme; including fixed footer. |
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*/ |
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class The_Neverending_Home_Page { |
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/** |
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* Register actions and filters, plus parse IS settings |
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* |
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* @uses add_action, add_filter, self::get_settings |
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* @return null |
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*/ |
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function __construct() { |
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add_action( 'pre_get_posts', array( $this, 'posts_per_page_query' ) ); |
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|
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add_action( 'admin_init', array( $this, 'settings_api_init' ) ); |
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add_action( 'template_redirect', array( $this, 'action_template_redirect' ) ); |
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add_action( 'template_redirect', array( $this, 'ajax_response' ) ); |
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add_action( 'custom_ajax_infinite_scroll', array( $this, 'query' ) ); |
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add_filter( 'infinite_scroll_query_args', array( $this, 'inject_query_args' ) ); |
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add_filter( 'infinite_scroll_allowed_vars', array( $this, 'allowed_query_vars' ) ); |
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add_action( 'the_post', array( $this, 'preserve_more_tag' ) ); |
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add_action( 'wp_footer', array( $this, 'footer' ) ); |
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|
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// Plugin compatibility |
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add_filter( 'grunion_contact_form_redirect_url', array( $this, 'filter_grunion_redirect_url' ) ); |
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|
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// Parse IS settings from theme |
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self::get_settings(); |
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} |
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|
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/** |
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* Initialize our static variables |
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*/ |
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static $the_time = null; |
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static $settings = null; // Don't access directly, instead use self::get_settings(). |
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|
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static $option_name_enabled = 'infinite_scroll'; |
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|
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/** |
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* Parse IS settings provided by theme |
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* |
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* @uses get_theme_support, infinite_scroll_has_footer_widgets, sanitize_title, add_action, get_option, wp_parse_args, is_active_sidebar |
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* @return object |
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*/ |
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static function get_settings() { |
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if ( is_null( self::$settings ) ) { |
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$css_pattern = '#[^A-Z\d\-_]#i'; |
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|
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$settings = $defaults = array( |
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'type' => 'scroll', // scroll | click |
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'requested_type' => 'scroll', // store the original type for use when logic overrides it |
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'footer_widgets' => false, // true | false | sidebar_id | array of sidebar_ids -- last two are checked with is_active_sidebar |
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'container' => 'content', // container html id |
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'wrapper' => true, // true | false | html class |
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'render' => false, // optional function, otherwise the `content` template part will be used |
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'footer' => true, // boolean to enable or disable the infinite footer | string to provide an html id to derive footer width from |
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'footer_callback' => false, // function to be called to render the IS footer, in place of the default |
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'posts_per_page' => false, // int | false to set based on IS type |
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'click_handle' => true, // boolean to enable or disable rendering the click handler div. If type is click and this is false, page must include its own trigger with the HTML ID `infinite-handle`. |
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); |
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|
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// Validate settings passed through add_theme_support() |
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$_settings = get_theme_support( 'infinite-scroll' ); |
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|
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if ( is_array( $_settings ) ) { |
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// Preferred implementation, where theme provides an array of options |
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if ( isset( $_settings[0] ) && is_array( $_settings[0] ) ) { |
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foreach ( $_settings[0] as $key => $value ) { |
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switch ( $key ) { |
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case 'type' : |
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if ( in_array( $value, array( 'scroll', 'click' ) ) ) |
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$settings[ $key ] = $settings['requested_type'] = $value; |
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|
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break; |
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|
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case 'footer_widgets' : |
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if ( is_string( $value ) ) |
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$settings[ $key ] = sanitize_title( $value ); |
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elseif ( is_array( $value ) ) |
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$settings[ $key ] = array_map( 'sanitize_title', $value ); |
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elseif ( is_bool( $value ) ) |
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$settings[ $key ] = $value; |
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|
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break; |
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|
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case 'container' : |
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case 'wrapper' : |
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if ( 'wrapper' == $key && is_bool( $value ) ) { |
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$settings[ $key ] = $value; |
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} else { |
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$value = preg_replace( $css_pattern, '', $value ); |
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|
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if ( ! empty( $value ) ) |
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$settings[ $key ] = $value; |
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} |
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|
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break; |
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|
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case 'render' : |
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if ( false !== $value && is_callable( $value ) ) { |
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$settings[ $key ] = $value; |
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} |
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|
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break; |
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|
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case 'footer' : |
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if ( is_bool( $value ) ) { |
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$settings[ $key ] = $value; |
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} elseif ( is_string( $value ) ) { |
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$value = preg_replace( $css_pattern, '', $value ); |
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|
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if ( ! empty( $value ) ) |
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$settings[ $key ] = $value; |
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} |
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|
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break; |
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|
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case 'footer_callback' : |
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if ( is_callable( $value ) ) |
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$settings[ $key ] = $value; |
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else |
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$settings[ $key ] = false; |
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|
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break; |
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|
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case 'posts_per_page' : |
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if ( is_numeric( $value ) ) |
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$settings[ $key ] = (int) $value; |
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|
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break; |
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|
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case 'click_handle' : |
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if ( is_bool( $value ) ) { |
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$settings[ $key ] = $value; |
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} |
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|
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break; |
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|
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default: |
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break; |
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} |
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} |
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} elseif ( is_string( $_settings[0] ) ) { |
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// Checks below are for backwards compatibility |
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|
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// Container to append new posts to |
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$settings['container'] = preg_replace( $css_pattern, '', $_settings[0] ); |
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|
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// Wrap IS elements? |
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if ( isset( $_settings[1] ) ) |
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$settings['wrapper'] = (bool) $_settings[1]; |
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} |
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} |
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|
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// Always ensure all values are present in the final array |
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$settings = wp_parse_args( $settings, $defaults ); |
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|
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// Check if a legacy `infinite_scroll_has_footer_widgets()` function is defined and override the footer_widgets parameter's value. |
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// Otherwise, if a widget area ID or array of IDs was provided in the footer_widgets parameter, check if any contains any widgets. |
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// It is safe to use `is_active_sidebar()` before the sidebar is registered as this function doesn't check for a sidebar's existence when determining if it contains any widgets. |
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if ( function_exists( 'infinite_scroll_has_footer_widgets' ) ) { |
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$settings['footer_widgets'] = (bool) infinite_scroll_has_footer_widgets(); |
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} elseif ( is_array( $settings['footer_widgets'] ) ) { |
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$sidebar_ids = $settings['footer_widgets']; |
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$settings['footer_widgets'] = false; |
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|
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foreach ( $sidebar_ids as $sidebar_id ) { |
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if ( is_active_sidebar( $sidebar_id ) ) { |
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$settings['footer_widgets'] = true; |
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break; |
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} |
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} |
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|
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unset( $sidebar_ids ); |
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unset( $sidebar_id ); |
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} elseif ( is_string( $settings['footer_widgets'] ) ) { |
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$settings['footer_widgets'] = (bool) is_active_sidebar( $settings['footer_widgets'] ); |
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} |
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|
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/** |
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* Filter Infinite Scroll's `footer_widgets` parameter. |
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* |
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* @module infinite-scroll |
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* |
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* @since 2.0.0 |
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* |
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* @param bool $settings['footer_widgets'] Does the current theme have Footer Widgets. |
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*/ |
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$settings['footer_widgets'] = apply_filters( 'infinite_scroll_has_footer_widgets', $settings['footer_widgets'] ); |
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|
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// Finally, after all of the sidebar checks and filtering, ensure that a boolean value is present, otherwise set to default of `false`. |
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if ( ! is_bool( $settings['footer_widgets'] ) ) |
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$settings['footer_widgets'] = false; |
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|
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// Ensure that IS is enabled and no footer widgets exist if the IS type isn't already "click". |
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if ( 'click' != $settings['type'] ) { |
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// Check the setting status |
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$disabled = '' === get_option( self::$option_name_enabled ) ? true : false; |
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|
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// Footer content or Reading option check |
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if ( $settings['footer_widgets'] || $disabled ) |
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$settings['type'] = 'click'; |
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} |
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|
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// Force display of the click handler and attendant bits when the type isn't `click` |
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if ( 'click' !== $settings['type'] ) { |
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$settings['click_handle'] = true; |
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} |
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|
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// Store final settings in a class static to avoid reparsing |
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/** |
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* Filter the array of Infinite Scroll settings. |
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* |
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* @module infinite-scroll |
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* |
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* @since 2.0.0 |
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* |
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* @param array $settings Array of Infinite Scroll settings. |
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*/ |
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self::$settings = apply_filters( 'infinite_scroll_settings', $settings ); |
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} |
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|
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/** This filter is already documented in modules/infinite-scroll/infinity.php */ |
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return (object) apply_filters( 'infinite_scroll_settings', self::$settings ); |
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} |
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|
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/** |
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* Number of posts per page. |
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* |
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* @uses self::wp_query, self::get_settings, apply_filters |
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* @return int |
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*/ |
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static function posts_per_page() { |
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$posts_per_page = self::get_settings()->posts_per_page ? self::get_settings()->posts_per_page : self::wp_query()->get( 'posts_per_page' ); |
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|
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// Take JS query into consideration here |
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if ( true === isset( $_REQUEST['query_args']['posts_per_page'] ) ) { |
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$posts_per_page = $_REQUEST['query_args']['posts_per_page']; |
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} |
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|
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/** |
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* Filter the number of posts per page. |
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* |
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* @module infinite-scroll |
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* |
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* @since 6.0.0 |
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* |
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* @param int $posts_per_page The number of posts to display per page. |
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*/ |
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return (int) apply_filters( 'infinite_scroll_posts_per_page', $posts_per_page ); |
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} |
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|
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/** |
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* Retrieve the query used with Infinite Scroll |
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* |
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* @global $wp_the_query |
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* @uses apply_filters |
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* @return object |
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*/ |
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static function wp_query() { |
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global $wp_the_query; |
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/** |
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* Filter the Infinite Scroll query object. |
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* |
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* @module infinite-scroll |
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* |
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* @since 2.2.1 |
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* |
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* @param WP_Query $wp_the_query WP Query. |
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*/ |
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return apply_filters( 'infinite_scroll_query_object', $wp_the_query ); |
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} |
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|
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/** |
| 288 |
* Has infinite scroll been triggered? |
| 289 |
*/ |
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static function got_infinity() { |
| 291 |
/** |
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* Filter the parameter used to check if Infinite Scroll has been triggered. |
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* |
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* @module infinite-scroll |
| 295 |
* |
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* @since 3.9.0 |
| 297 |
* |
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* @param bool isset( $_GET[ 'infinity' ] ) Return true if the "infinity" parameter is set. |
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*/ |
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return apply_filters( 'infinite_scroll_got_infinity', isset( $_GET[ 'infinity' ] ) ); |
| 301 |
} |
| 302 |
|
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/** |
| 304 |
* Is this guaranteed to be the last batch of posts? |
| 305 |
*/ |
| 306 |
static function is_last_batch() { |
| 307 |
/** |
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* Override whether or not this is the last batch for a request |
| 309 |
* |
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* @module infinite-scroll |
| 311 |
* |
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* @since 4.8.0 |
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* |
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* @param bool|null null Bool if value should be overridden, null to determine from query |
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* @param object self::wp_query() WP_Query object for current request |
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* @param object self::get_settings() Infinite Scroll settings |
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*/ |
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$override = apply_filters( 'infinite_scroll_is_last_batch', null, self::wp_query(), self::get_settings() ); |
| 319 |
if ( is_bool( $override ) ) { |
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return $override; |
| 321 |
} |
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|
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$entries = (int) self::wp_query()->found_posts; |
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$posts_per_page = self::posts_per_page(); |
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|
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// This is to cope with an issue in certain themes or setups where posts are returned but found_posts is 0. |
| 327 |
if ( 0 == $entries ) { |
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return (bool) ( count( self::wp_query()->posts ) < $posts_per_page ); |
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} |
| 330 |
$paged = max( 1, self::wp_query()->get( 'paged' ) ); |
| 331 |
|
| 332 |
// Are there enough posts for more than the first page? |
| 333 |
if ( $entries <= $posts_per_page ) { |
| 334 |
return true; |
| 335 |
} |
| 336 |
|
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// Calculate entries left after a certain number of pages |
| 338 |
if ( $paged && $paged > 1 ) { |
| 339 |
$entries -= $posts_per_page * $paged; |
| 340 |
} |
| 341 |
|
| 342 |
// Are there some entries left to display? |
| 343 |
return $entries <= 0; |
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} |
| 345 |
|
| 346 |
/** |
| 347 |
* The more tag will be ignored by default if the blog page isn't our homepage. |
| 348 |
* Let's force the $more global to false. |
| 349 |
*/ |
| 350 |
function preserve_more_tag( $array ) { |
| 351 |
global $more; |
| 352 |
|
| 353 |
if ( self::got_infinity() ) |
| 354 |
$more = 0; //0 = show content up to the more tag. Add more link. |
| 355 |
|
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return $array; |
| 357 |
} |
| 358 |
|
| 359 |
/** |
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* Add a checkbox field to Settings > Reading |
| 361 |
* for enabling infinite scroll. |
| 362 |
* |
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* Only show if the current theme supports infinity. |
| 364 |
* |
| 365 |
* @uses current_theme_supports, add_settings_field, __, register_setting |
| 366 |
* @action admin_init |
| 367 |
* @return null |
| 368 |
*/ |
| 369 |
function settings_api_init() { |
| 370 |
if ( ! current_theme_supports( 'infinite-scroll' ) ) |
| 371 |
return; |
| 372 |
|
| 373 |
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
| 374 |
// This setting is no longer configurable in wp-admin on WordPress.com -- leave a pointer |
| 375 |
add_settings_field( self::$option_name_enabled, |
| 376 |
'<span id="infinite-scroll-options">' . esc_html__( 'Infinite Scroll Behavior', 'jetpack' ) . '</span>', |
| 377 |
array( $this, 'infinite_setting_html_calypso_placeholder' ), |
| 378 |
'reading' |
| 379 |
); |
| 380 |
return; |
| 381 |
} |
| 382 |
|
| 383 |
// Add the setting field [infinite_scroll] and place it in Settings > Reading |
| 384 |
add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . esc_html__( 'Infinite Scroll Behavior', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' ); |
| 385 |
register_setting( 'reading', self::$option_name_enabled, 'esc_attr' ); |
| 386 |
} |
| 387 |
|
| 388 |
function infinite_setting_html_calypso_placeholder() { |
| 389 |
$details = get_blog_details(); |
| 390 |
echo '<span>' . sprintf( |
| 391 |
/* translators: Variables are the enclosing link to the settings page */ |
| 392 |
esc_html__( 'This option has moved. You can now manage it %1$shere%2$s.' ), |
| 393 |
'<a href="' . esc_url( 'https://wordpress.com/settings/writing/' . $details->domain ) . '">', |
| 394 |
'</a>' |
| 395 |
) . '</span>'; |
| 396 |
} |
| 397 |
|
| 398 |
/** |
| 399 |
* HTML code to display a checkbox true/false option |
| 400 |
* for the infinite_scroll setting. |
| 401 |
*/ |
| 402 |
function infinite_setting_html() { |
| 403 |
$notice = '<em>' . __( 'We’ve changed this option to a click-to-scroll version for you since you have footer widgets in Appearance → Widgets, or your theme uses click-to-scroll as the default behavior.', 'jetpack' ) . '</em>'; |
| 404 |
|
| 405 |
// If the blog has footer widgets, show a notice instead of the checkbox |
| 406 |
if ( self::get_settings()->footer_widgets || 'click' == self::get_settings()->requested_type ) { |
| 407 |
echo '<label>' . $notice . '</label>'; |
| 408 |
} else { |
| 409 |
echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$option_name_enabled ), false ) . ' /> ' . esc_html__( 'Check to load posts as you scroll. Uncheck to show clickable button to load posts', 'jetpack' ) . '</label>'; |
| 410 |
echo '<p class="description">' . esc_html( sprintf( _n( 'Shows %s post on each load.', 'Shows %s posts on each load.', self::posts_per_page(), 'jetpack' ), number_format_i18n( self::posts_per_page() ) ) ) . '</p>'; |
| 411 |
} |
| 412 |
} |
| 413 |
|
| 414 |
/** |
| 415 |
* Does the legwork to determine whether the feature is enabled. |
| 416 |
* |
| 417 |
* @uses current_theme_supports, self::archive_supports_infinity, self::get_settings, add_filter, wp_enqueue_script, plugins_url, wp_enqueue_style, add_action |
| 418 |
* @action template_redirect |
| 419 |
* @return null |
| 420 |
*/ |
| 421 |
function action_template_redirect() { |
| 422 |
// Check that we support infinite scroll, and are on the home page. |
| 423 |
if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() ) |
| 424 |
return; |
| 425 |
|
| 426 |
$id = self::get_settings()->container; |
| 427 |
|
| 428 |
// Check that we have an id. |
| 429 |
if ( empty( $id ) ) |
| 430 |
return; |
| 431 |
|
| 432 |
// Add our scripts. |
| 433 |
wp_register_script( |
| 434 |
'the-neverending-homepage', |
| 435 |
Jetpack::get_file_url_for_environment( |
| 436 |
'_inc/build/infinite-scroll/infinity.min.js', |
| 437 |
'modules/infinite-scroll/infinity.js' |
| 438 |
), |
| 439 |
array( 'jquery' ), |
| 440 |
'4.0.0', |
| 441 |
true |
| 442 |
); |
| 443 |
|
| 444 |
// Add our default styles. |
| 445 |
wp_register_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20140422' ); |
| 446 |
|
| 447 |
// Make sure there are enough posts for IS |
| 448 |
if ( self::is_last_batch() ) { |
| 449 |
return; |
| 450 |
} |
| 451 |
|
| 452 |
// Add our scripts. |
| 453 |
wp_enqueue_script( 'the-neverending-homepage' ); |
| 454 |
|
| 455 |
// Add our default styles. |
| 456 |
wp_enqueue_style( 'the-neverending-homepage' ); |
| 457 |
|
| 458 |
add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_spinner_scripts' ) ); |
| 459 |
|
| 460 |
add_action( 'wp_footer', array( $this, 'action_wp_footer_settings' ), 2 ); |
| 461 |
|
| 462 |
add_action( 'wp_footer', array( $this, 'action_wp_footer' ), 21 ); // Core prints footer scripts at priority 20, so we just need to be one later than that |
| 463 |
|
| 464 |
add_filter( 'infinite_scroll_results', array( $this, 'filter_infinite_scroll_results' ), 10, 3 ); |
| 465 |
} |
| 466 |
|
| 467 |
/** |
| 468 |
* Enqueue spinner scripts. |
| 469 |
*/ |
| 470 |
function enqueue_spinner_scripts() { |
| 471 |
wp_enqueue_script( 'jquery.spin' ); |
| 472 |
} |
| 473 |
|
| 474 |
/** |
| 475 |
* Returns classes to be added to <body>. If it's enabled, 'infinite-scroll'. If set to continuous scroll, adds 'neverending' too. |
| 476 |
* |
| 477 |
* @since 4.7.0 No longer added as a 'body_class' filter but passed to JS environment and added using JS. |
| 478 |
* |
| 479 |
* @return string |
| 480 |
*/ |
| 481 |
function body_class() { |
| 482 |
$classes = ''; |
| 483 |
// Do not add infinity-scroll class if disabled through the Reading page |
| 484 |
$disabled = '' === get_option( self::$option_name_enabled ) ? true : false; |
| 485 |
if ( ! $disabled || 'click' == self::get_settings()->type ) { |
| 486 |
$classes = 'infinite-scroll'; |
| 487 |
|
| 488 |
if ( 'scroll' == self::get_settings()->type ) |
| 489 |
$classes .= ' neverending'; |
| 490 |
} |
| 491 |
|
| 492 |
return $classes; |
| 493 |
} |
| 494 |
|
| 495 |
/** |
| 496 |
* In case IS is activated on search page, we have to exclude initially loaded posts which match the keyword by title, not the content as they are displayed before content-matching ones |
| 497 |
* |
| 498 |
* @uses self::wp_query |
| 499 |
* @uses self::get_last_post_date |
| 500 |
* @uses self::has_only_title_matching_posts |
| 501 |
* @return array |
| 502 |
*/ |
| 503 |
function get_excluded_posts() { |
| 504 |
|
| 505 |
$excluded_posts = array(); |
| 506 |
//loop through posts returned by wp_query call |
| 507 |
foreach( self::wp_query()->get_posts() as $post ) { |
| 508 |
|
| 509 |
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ? self::wp_query()->query_vars['orderby'] : ''; |
| 510 |
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false ); |
| 511 |
if ( 'modified' === $orderby || false === $post_date ) { |
| 512 |
$post_date = $post->post_modified; |
| 513 |
} |
| 514 |
|
| 515 |
//in case all posts initially displayed match the keyword by title we add em all to excluded posts array |
| 516 |
//else, we add only posts which are older than last_post_date param as newer are natually excluded by last_post_date condition in the SQL query |
| 517 |
if ( self::has_only_title_matching_posts() || $post_date <= self::get_last_post_date() ) { |
| 518 |
array_push( $excluded_posts, $post->ID ); |
| 519 |
} |
| 520 |
} |
| 521 |
return $excluded_posts; |
| 522 |
} |
| 523 |
|
| 524 |
/** |
| 525 |
* In case IS is active on search, we have to exclude posts matched by title rather than by post_content in order to prevent dupes on next pages |
| 526 |
* |
| 527 |
* @uses self::wp_query |
| 528 |
* @uses self::get_excluded_posts |
| 529 |
* @return array |
| 530 |
*/ |
| 531 |
function get_query_vars() { |
| 532 |
|
| 533 |
$query_vars = self::wp_query()->query_vars; |
| 534 |
//applies to search page only |
| 535 |
if ( true === self::wp_query()->is_search() ) { |
| 536 |
//set post__not_in array in query_vars in case it does not exists |
| 537 |
if ( false === isset( $query_vars['post__not_in'] ) ) { |
| 538 |
$query_vars['post__not_in'] = array(); |
| 539 |
} |
| 540 |
//get excluded posts |
| 541 |
$excluded = self::get_excluded_posts(); |
| 542 |
//merge them with other post__not_in posts (eg.: sticky posts) |
| 543 |
$query_vars['post__not_in'] = array_merge( $query_vars['post__not_in'], $excluded ); |
| 544 |
} |
| 545 |
return $query_vars; |
| 546 |
} |
| 547 |
|
| 548 |
/** |
| 549 |
* This function checks whether all posts returned by initial wp_query match the keyword by title |
| 550 |
* The code used in this function is borrowed from WP_Query class where it is used to construct like conditions for keywords |
| 551 |
* |
| 552 |
* @uses self::wp_query |
| 553 |
* @return bool |
| 554 |
*/ |
| 555 |
function has_only_title_matching_posts() { |
| 556 |
|
| 557 |
//apply following logic for search page results only |
| 558 |
if ( false === self::wp_query()->is_search() ) { |
| 559 |
return false; |
| 560 |
} |
| 561 |
|
| 562 |
//grab the last posts in the stack as if the last one is title-matching the rest is title-matching as well |
| 563 |
$post = end( self::wp_query()->posts ); |
| 564 |
|
| 565 |
//code inspired by WP_Query class |
| 566 |
if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', self::wp_query()->get( 's' ), $matches ) ) { |
| 567 |
$search_terms = self::wp_query()->query_vars['search_terms']; |
| 568 |
// if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence |
| 569 |
if ( empty( $search_terms ) || count( $search_terms ) > 9 ) { |
| 570 |
$search_terms = array( self::wp_query()->get( 's' ) ); |
| 571 |
} |
| 572 |
} else { |
| 573 |
$search_terms = array( self::wp_query()->get( 's' ) ); |
| 574 |
} |
| 575 |
|
| 576 |
//actual testing. As search query combines multiple keywords with AND, it's enough to check if any of the keywords is present in the title |
| 577 |
$term = current( $search_terms ); |
| 578 |
if ( ! empty( $term ) && false !== strpos( $post->post_title, $term ) ) { |
| 579 |
return true; |
| 580 |
} |
| 581 |
|
| 582 |
return false; |
| 583 |
} |
| 584 |
|
| 585 |
/** |
| 586 |
* Grab the timestamp for the initial query's last post. |
| 587 |
* |
| 588 |
* This takes into account the query's 'orderby' parameter and returns |
| 589 |
* false if the posts are not ordered by date. |
| 590 |
* |
| 591 |
* @uses self::got_infinity |
| 592 |
* @uses self::has_only_title_matching_posts |
| 593 |
* @uses self::wp_query |
| 594 |
* @return string 'Y-m-d H:i:s' or false |
| 595 |
*/ |
| 596 |
function get_last_post_date() { |
| 597 |
if ( self::got_infinity() ) |
| 598 |
return; |
| 599 |
|
| 600 |
if ( ! self::wp_query()->have_posts() ) { |
| 601 |
return null; |
| 602 |
} |
| 603 |
|
| 604 |
//In case there are only title-matching posts in the initial WP_Query result, we don't want to use the last_post_date param yet |
| 605 |
if ( true === self::has_only_title_matching_posts() ) { |
| 606 |
return false; |
| 607 |
} |
| 608 |
|
| 609 |
$post = end( self::wp_query()->posts ); |
| 610 |
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ? |
| 611 |
self::wp_query()->query_vars['orderby'] : ''; |
| 612 |
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false ); |
| 613 |
switch ( $orderby ) { |
| 614 |
case 'modified': |
| 615 |
return $post->post_modified; |
| 616 |
case 'date': |
| 617 |
case '': |
| 618 |
return $post_date; |
| 619 |
default: |
| 620 |
return false; |
| 621 |
} |
| 622 |
} |
| 623 |
|
| 624 |
/** |
| 625 |
* Returns the appropriate `wp_posts` table field for a given query's |
| 626 |
* 'orderby' parameter, if applicable. |
| 627 |
* |
| 628 |
* @param optional object $query |
| 629 |
* @uses self::wp_query |
| 630 |
* @return string or false |
| 631 |
*/ |
| 632 |
function get_query_sort_field( $query = null ) { |
| 633 |
if ( empty( $query ) ) |
| 634 |
$query = self::wp_query(); |
| 635 |
|
| 636 |
$orderby = isset( $query->query_vars['orderby'] ) ? $query->query_vars['orderby'] : ''; |
| 637 |
|
| 638 |
switch ( $orderby ) { |
| 639 |
case 'modified': |
| 640 |
return 'post_modified'; |
| 641 |
case 'date': |
| 642 |
case '': |
| 643 |
return 'post_date'; |
| 644 |
default: |
| 645 |
return false; |
| 646 |
} |
| 647 |
} |
| 648 |
|
| 649 |
/** |
| 650 |
* Create a where clause that will make sure post queries return posts |
| 651 |
* in the correct order, without duplicates, if a new post is added |
| 652 |
* and we're sorting by post date. |
| 653 |
* |
| 654 |
* @global $wpdb |
| 655 |
* @param string $where |
| 656 |
* @param object $query |
| 657 |
* @uses apply_filters |
| 658 |
* @filter posts_where |
| 659 |
* @return string |
| 660 |
*/ |
| 661 |
function query_time_filter( $where, $query ) { |
| 662 |
if ( self::got_infinity() ) { |
| 663 |
global $wpdb; |
| 664 |
|
| 665 |
$sort_field = self::get_query_sort_field( $query ); |
| 666 |
|
| 667 |
if ( 'post_date' !== $sort_field || 'DESC' !== $_REQUEST['query_args']['order'] ) { |
| 668 |
return $where; |
| 669 |
} |
| 670 |
|
| 671 |
$query_before = sanitize_text_field( wp_unslash( $_REQUEST['query_before'] ) ); |
| 672 |
|
| 673 |
if ( empty( $query_before ) ) { |
| 674 |
return $where; |
| 675 |
} |
| 676 |
|
| 677 |
// Construct the date query using our timestamp |
| 678 |
$clause = $wpdb->prepare( " AND {$wpdb->posts}.post_date <= %s", $query_before ); |
| 679 |
|
| 680 |
/** |
| 681 |
* Filter Infinite Scroll's SQL date query making sure post queries |
| 682 |
* will always return results prior to (descending sort) |
| 683 |
* or before (ascending sort) the last post date. |
| 684 |
* |
| 685 |
* @module infinite-scroll |
| 686 |
* |
| 687 |
* @param string $clause SQL Date query. |
| 688 |
* @param object $query Query. |
| 689 |
* @param string $operator @deprecated Query operator. |
| 690 |
* @param string $last_post_date @deprecated Last Post Date timestamp. |
| 691 |
*/ |
| 692 |
$operator = 'ASC' === $_REQUEST['query_args']['order'] ? '>' : '<'; |
| 693 |
$last_post_date = sanitize_text_field( wp_unslash( $_REQUEST['last_post_date'] ) ); |
| 694 |
$where .= apply_filters( 'infinite_scroll_posts_where', $clause, $query, $operator, $last_post_date ); |
| 695 |
} |
| 696 |
|
| 697 |
return $where; |
| 698 |
} |
| 699 |
|
| 700 |
/** |
| 701 |
* Let's overwrite the default post_per_page setting to always display a fixed amount. |
| 702 |
* |
| 703 |
* @param object $query |
| 704 |
* @uses is_admin, self::archive_supports_infinity, self::get_settings |
| 705 |
* @return null |
| 706 |
*/ |
| 707 |
function posts_per_page_query( $query ) { |
| 708 |
if ( ! is_admin() && self::archive_supports_infinity() && $query->is_main_query() ) |
| 709 |
$query->set( 'posts_per_page', self::posts_per_page() ); |
| 710 |
} |
| 711 |
|
| 712 |
/** |
| 713 |
* Check if the IS output should be wrapped in a div. |
| 714 |
* Setting value can be a boolean or a string specifying the class applied to the div. |
| 715 |
* |
| 716 |
* @uses self::get_settings |
| 717 |
* @return bool |
| 718 |
*/ |
| 719 |
function has_wrapper() { |
| 720 |
return (bool) self::get_settings()->wrapper; |
| 721 |
} |
| 722 |
|
| 723 |
/** |
| 724 |
* Returns the Ajax url |
| 725 |
* |
| 726 |
* @global $wp |
| 727 |
* @uses home_url, add_query_arg, apply_filters |
| 728 |
* @return string |
| 729 |
*/ |
| 730 |
function ajax_url() { |
| 731 |
$base_url = set_url_scheme( home_url( '/' ) ); |
| 732 |
|
| 733 |
$ajaxurl = add_query_arg( array( 'infinity' => 'scrolling' ), $base_url ); |
| 734 |
|
| 735 |
/** |
| 736 |
* Filter the Infinite Scroll Ajax URL. |
| 737 |
* |
| 738 |
* @module infinite-scroll |
| 739 |
* |
| 740 |
* @since 2.0.0 |
| 741 |
* |
| 742 |
* @param string $ajaxurl Infinite Scroll Ajax URL. |
| 743 |
*/ |
| 744 |
return apply_filters( 'infinite_scroll_ajax_url', $ajaxurl ); |
| 745 |
} |
| 746 |
|
| 747 |
/** |
| 748 |
* Our own Ajax response, avoiding calling admin-ajax |
| 749 |
*/ |
| 750 |
function ajax_response() { |
| 751 |
// Only proceed if the url query has a key of "Infinity" |
| 752 |
if ( ! self::got_infinity() ) |
| 753 |
return false; |
| 754 |
|
| 755 |
// This should already be defined below, but make sure. |
| 756 |
if ( ! defined( 'DOING_AJAX' ) ) { |
| 757 |
define( 'DOING_AJAX', true ); |
| 758 |
} |
| 759 |
|
| 760 |
@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) ); |
| 761 |
send_nosniff_header(); |
| 762 |
|
| 763 |
/** |
| 764 |
* Fires at the end of the Infinite Scroll Ajax response. |
| 765 |
* |
| 766 |
* @module infinite-scroll |
| 767 |
* |
| 768 |
* @since 2.0.0 |
| 769 |
*/ |
| 770 |
do_action( 'custom_ajax_infinite_scroll' ); |
| 771 |
die( '0' ); |
| 772 |
} |
| 773 |
|
| 774 |
/** |
| 775 |
* Alias for renamed class method. |
| 776 |
* |
| 777 |
* Previously, JS settings object was unnecessarily output in the document head. |
| 778 |
* When the hook was changed, the method name no longer made sense. |
| 779 |
*/ |
| 780 |
function action_wp_head() { |
| 781 |
$this->action_wp_footer_settings(); |
| 782 |
} |
| 783 |
|
| 784 |
/** |
| 785 |
* Prints the relevant infinite scroll settings in JS. |
| 786 |
* |
| 787 |
* @global $wp_rewrite |
| 788 |
* @uses self::get_settings, esc_js, esc_url_raw, self::has_wrapper, __, apply_filters, do_action, self::get_query_vars |
| 789 |
* @action wp_footer |
| 790 |
* @return string |
| 791 |
*/ |
| 792 |
function action_wp_footer_settings() { |
| 793 |
global $wp_rewrite; |
| 794 |
global $currentday; |
| 795 |
|
| 796 |
// Default click handle text |
| 797 |
$click_handle_text = __( 'Older posts', 'jetpack' ); |
| 798 |
|
| 799 |
// If a single CPT is displayed, use its plural name instead of "posts" |
| 800 |
// Could be empty (posts) or an array of multiple post types. |
| 801 |
// In the latter two cases cases, the default text is used, leaving the `infinite_scroll_js_settings` filter for further customization. |
| 802 |
$post_type = self::wp_query()->get( 'post_type' ); |
| 803 |
|
| 804 |
// If it's a taxonomy, try to change the button text. |
| 805 |
if ( is_tax() ) { |
| 806 |
// Get current taxonomy slug. |
| 807 |
$taxonomy_slug = self::wp_query()->get( 'taxonomy' ); |
| 808 |
|
| 809 |
// Get taxonomy settings. |
| 810 |
$taxonomy = get_taxonomy( $taxonomy_slug ); |
| 811 |
|
| 812 |
// Check if the taxonomy is attached to one post type only and use its plural name. |
| 813 |
// If not, use "Posts" without confusing the users. |
| 814 |
if ( count( $taxonomy->object_type ) < 2 ) { |
| 815 |
$post_type = $taxonomy->object_type[0]; |
| 816 |
} |
| 817 |
} |
| 818 |
|
| 819 |
if ( is_string( $post_type ) && ! empty( $post_type ) ) { |
| 820 |
$post_type = get_post_type_object( $post_type ); |
| 821 |
|
| 822 |
if ( is_object( $post_type ) && ! is_wp_error( $post_type ) ) { |
| 823 |
if ( isset( $post_type->labels->name ) ) { |
| 824 |
$cpt_text = $post_type->labels->name; |
| 825 |
} elseif ( isset( $post_type->label ) ) { |
| 826 |
$cpt_text = $post_type->label; |
| 827 |
} |
| 828 |
|
| 829 |
if ( isset( $cpt_text ) ) { |
| 830 |
/* translators: %s is the name of a custom post type */ |
| 831 |
$click_handle_text = sprintf( __( 'More %s', 'jetpack' ), $cpt_text ); |
| 832 |
unset( $cpt_text ); |
| 833 |
} |
| 834 |
} |
| 835 |
} |
| 836 |
|
| 837 |
unset( $post_type ); |
| 838 |
|
| 839 |
// Base JS settings |
| 840 |
$js_settings = array( |
| 841 |
'id' => self::get_settings()->container, |
| 842 |
'ajaxurl' => esc_url_raw( self::ajax_url() ), |
| 843 |
'type' => esc_js( self::get_settings()->type ), |
| 844 |
'wrapper' => self::has_wrapper(), |
| 845 |
'wrapper_class' => is_string( self::get_settings()->wrapper ) ? esc_js( self::get_settings()->wrapper ) : 'infinite-wrap', |
| 846 |
'footer' => is_string( self::get_settings()->footer ) ? esc_js( self::get_settings()->footer ) : self::get_settings()->footer, |
| 847 |
'click_handle' => esc_js( self::get_settings()->click_handle ), |
| 848 |
'text' => esc_js( $click_handle_text ), |
| 849 |
'totop' => esc_js( __( 'Scroll back to top', 'jetpack' ) ), |
| 850 |
'currentday' => $currentday, |
| 851 |
'order' => 'DESC', |
| 852 |
'scripts' => array(), |
| 853 |
'styles' => array(), |
| 854 |
'google_analytics' => false, |
| 855 |
'offset' => max( 1, self::wp_query()->get( 'paged' ) ), // Pass through the current page so we can use that to offset the first load. |
| 856 |
'history' => array( |
| 857 |
'host' => preg_replace( '#^http(s)?://#i', '', untrailingslashit( esc_url( get_home_url() ) ) ), |
| 858 |
'path' => self::get_request_path(), |
| 859 |
'use_trailing_slashes' => $wp_rewrite->use_trailing_slashes, |
| 860 |
'parameters' => self::get_request_parameters(), |
| 861 |
), |
| 862 |
'query_args' => self::get_query_vars(), |
| 863 |
'query_before' => current_time( 'mysql' ), |
| 864 |
'last_post_date' => self::get_last_post_date(), |
| 865 |
'body_class' => self::body_class(), |
| 866 |
); |
| 867 |
|
| 868 |
// Optional order param |
| 869 |
if ( isset( $_REQUEST['order'] ) ) { |
| 870 |
$order = strtoupper( $_REQUEST['order'] ); |
| 871 |
|
| 872 |
if ( in_array( $order, array( 'ASC', 'DESC' ) ) ) |
| 873 |
$js_settings['order'] = $order; |
| 874 |
} |
| 875 |
|
| 876 |
/** |
| 877 |
* Filter the Infinite Scroll JS settings outputted in the head. |
| 878 |
* |
| 879 |
* @module infinite-scroll |
| 880 |
* |
| 881 |
* @since 2.0.0 |
| 882 |
* |
| 883 |
* @param array $js_settings Infinite Scroll JS settings. |
| 884 |
*/ |
| 885 |
$js_settings = apply_filters( 'infinite_scroll_js_settings', $js_settings ); |
| 886 |
|
| 887 |
/** |
| 888 |
* Fires before Infinite Scroll outputs inline JavaScript in the head. |
| 889 |
* |
| 890 |
* @module infinite-scroll |
| 891 |
* |
| 892 |
* @since 2.0.0 |
| 893 |
*/ |
| 894 |
do_action( 'infinite_scroll_wp_head' ); |
| 895 |
|
| 896 |
?> |
| 897 |
<script type="text/javascript"> |
| 898 |
//<![CDATA[ |
| 899 |
var infiniteScroll = JSON.parse( decodeURIComponent( '<?php echo |
| 900 |
rawurlencode( json_encode( array( 'settings' => $js_settings ) ) ); |
| 901 |
?>' ) ); |
| 902 |
//]]> |
| 903 |
</script> |
| 904 |
<?php |
| 905 |
} |
| 906 |
|
| 907 |
/** |
| 908 |
* Build path data for current request. |
| 909 |
* Used for Google Analytics and pushState history tracking. |
| 910 |
* |
| 911 |
* @global $wp_rewrite |
| 912 |
* @global $wp |
| 913 |
* @uses user_trailingslashit, sanitize_text_field, add_query_arg |
| 914 |
* @return string|bool |
| 915 |
*/ |
| 916 |
private function get_request_path() { |
| 917 |
global $wp_rewrite; |
| 918 |
|
| 919 |
if ( $wp_rewrite->using_permalinks() ) { |
| 920 |
global $wp; |
| 921 |
|
| 922 |
// If called too early, bail |
| 923 |
if ( ! isset( $wp->request ) ) |
| 924 |
return false; |
| 925 |
|
| 926 |
// Determine path for paginated version of current request |
| 927 |
if ( false != preg_match( '#' . $wp_rewrite->pagination_base . '/\d+/?$#i', $wp->request ) ) |
| 928 |
$path = preg_replace( '#' . $wp_rewrite->pagination_base . '/\d+$#i', $wp_rewrite->pagination_base . '/%d', $wp->request ); |
| 929 |
else |
| 930 |
$path = $wp->request . '/' . $wp_rewrite->pagination_base . '/%d'; |
| 931 |
|
| 932 |
// Slashes everywhere we need them |
| 933 |
if ( 0 !== strpos( $path, '/' ) ) |
| 934 |
$path = '/' . $path; |
| 935 |
|
| 936 |
$path = user_trailingslashit( $path ); |
| 937 |
} else { |
| 938 |
// Clean up raw $_REQUEST input |
| 939 |
$path = array_map( 'sanitize_text_field', $_REQUEST ); |
| 940 |
$path = array_filter( $path ); |
| 941 |
|
| 942 |
$path['paged'] = '%d'; |
| 943 |
|
| 944 |
$path = add_query_arg( $path, '/' ); |
| 945 |
} |
| 946 |
|
| 947 |
return empty( $path ) ? false : $path; |
| 948 |
} |
| 949 |
|
| 950 |
/** |
| 951 |
* Return query string for current request, prefixed with '?'. |
| 952 |
* |
| 953 |
* @return string |
| 954 |
*/ |
| 955 |
private function get_request_parameters() { |
| 956 |
$uri = $_SERVER[ 'REQUEST_URI' ]; |
| 957 |
$uri = preg_replace( '/^[^?]*(\?.*$)/', '$1', $uri, 1, $count ); |
| 958 |
if ( $count != 1 ) |
| 959 |
return ''; |
| 960 |
return $uri; |
| 961 |
} |
| 962 |
|
| 963 |
/** |
| 964 |
* Provide IS with a list of the scripts and stylesheets already present on the page. |
| 965 |
* Since posts may contain require additional assets that haven't been loaded, this data will be used to track the additional assets. |
| 966 |
* |
| 967 |
* @global $wp_scripts, $wp_styles |
| 968 |
* @action wp_footer |
| 969 |
* @return string |
| 970 |
*/ |
| 971 |
function action_wp_footer() { |
| 972 |
global $wp_scripts, $wp_styles; |
| 973 |
|
| 974 |
$scripts = is_a( $wp_scripts, 'WP_Scripts' ) ? $wp_scripts->done : array(); |
| 975 |
/** |
| 976 |
* Filter the list of scripts already present on the page. |
| 977 |
* |
| 978 |
* @module infinite-scroll |
| 979 |
* |
| 980 |
* @since 2.1.2 |
| 981 |
* |
| 982 |
* @param array $scripts Array of scripts present on the page. |
| 983 |
*/ |
| 984 |
$scripts = apply_filters( 'infinite_scroll_existing_scripts', $scripts ); |
| 985 |
|
| 986 |
$styles = is_a( $wp_styles, 'WP_Styles' ) ? $wp_styles->done : array(); |
| 987 |
/** |
| 988 |
* Filter the list of styles already present on the page. |
| 989 |
* |
| 990 |
* @module infinite-scroll |
| 991 |
* |
| 992 |
* @since 2.1.2 |
| 993 |
* |
| 994 |
* @param array $styles Array of styles present on the page. |
| 995 |
*/ |
| 996 |
$styles = apply_filters( 'infinite_scroll_existing_stylesheets', $styles ); |
| 997 |
|
| 998 |
?><script type="text/javascript"> |
| 999 |
jQuery.extend( infiniteScroll.settings.scripts, <?php echo json_encode( $scripts ); ?> ); |
| 1000 |
jQuery.extend( infiniteScroll.settings.styles, <?php echo json_encode( $styles ); ?> ); |
| 1001 |
</script><?php |
| 1002 |
} |
| 1003 |
|
| 1004 |
/** |
| 1005 |
* Identify additional scripts required by the latest set of IS posts and provide the necessary data to the IS response handler. |
| 1006 |
* |
| 1007 |
* @global $wp_scripts |
| 1008 |
* @uses sanitize_text_field, add_query_arg |
| 1009 |
* @filter infinite_scroll_results |
| 1010 |
* @return array |
| 1011 |
*/ |
| 1012 |
function filter_infinite_scroll_results( $results, $query_args, $wp_query ) { |
| 1013 |
// Don't bother unless there are posts to display |
| 1014 |
if ( 'success' != $results['type'] ) |
| 1015 |
return $results; |
| 1016 |
|
| 1017 |
// Parse and sanitize the script handles already output |
| 1018 |
$initial_scripts = isset( $_REQUEST['scripts'] ) && is_array( $_REQUEST['scripts'] ) ? array_map( 'sanitize_text_field', $_REQUEST['scripts'] ) : false; |
| 1019 |
|
| 1020 |
if ( is_array( $initial_scripts ) ) { |
| 1021 |
global $wp_scripts; |
| 1022 |
|
| 1023 |
// Identify new scripts needed by the latest set of IS posts |
| 1024 |
$new_scripts = array_diff( $wp_scripts->done, $initial_scripts ); |
| 1025 |
|
| 1026 |
// If new scripts are needed, extract relevant data from $wp_scripts |
| 1027 |
if ( ! empty( $new_scripts ) ) { |
| 1028 |
$results['scripts'] = array(); |
| 1029 |
|
| 1030 |
foreach ( $new_scripts as $handle ) { |
| 1031 |
// Abort if somehow the handle doesn't correspond to a registered script |
| 1032 |
if ( ! isset( $wp_scripts->registered[ $handle ] ) ) |
| 1033 |
continue; |
| 1034 |
|
| 1035 |
// Provide basic script data |
| 1036 |
$script_data = array( |
| 1037 |
'handle' => $handle, |
| 1038 |
'footer' => ( is_array( $wp_scripts->in_footer ) && in_array( $handle, $wp_scripts->in_footer ) ), |
| 1039 |
'extra_data' => $wp_scripts->print_extra_script( $handle, false ) |
| 1040 |
); |
| 1041 |
|
| 1042 |
// Base source |
| 1043 |
$src = $wp_scripts->registered[ $handle ]->src; |
| 1044 |
|
| 1045 |
// Take base_url into account |
| 1046 |
if ( strpos( $src, 'http' ) !== 0 ) |
| 1047 |
$src = $wp_scripts->base_url . $src; |
| 1048 |
|
| 1049 |
// Version and additional arguments |
| 1050 |
if ( null === $wp_scripts->registered[ $handle ]->ver ) |
| 1051 |
$ver = ''; |
| 1052 |
else |
| 1053 |
$ver = $wp_scripts->registered[ $handle ]->ver ? $wp_scripts->registered[ $handle ]->ver : $wp_scripts->default_version; |
| 1054 |
|
| 1055 |
if ( isset( $wp_scripts->args[ $handle ] ) ) |
| 1056 |
$ver = $ver ? $ver . '&' . $wp_scripts->args[$handle] : $wp_scripts->args[$handle]; |
| 1057 |
|
| 1058 |
// Full script source with version info |
| 1059 |
$script_data['src'] = add_query_arg( 'ver', $ver, $src ); |
| 1060 |
|
| 1061 |
// Add script to data that will be returned to IS JS |
| 1062 |
array_push( $results['scripts'], $script_data ); |
| 1063 |
} |
| 1064 |
} |
| 1065 |
} |
| 1066 |
|
| 1067 |
// Expose additional script data to filters, but only include in final `$results` array if needed. |
| 1068 |
if ( ! isset( $results['scripts'] ) ) |
| 1069 |
$results['scripts'] = array(); |
| 1070 |
|
| 1071 |
/** |
| 1072 |
* Filter the additional scripts required by the latest set of IS posts. |
| 1073 |
* |
| 1074 |
* @module infinite-scroll |
| 1075 |
* |
| 1076 |
* @since 2.1.2 |
| 1077 |
* |
| 1078 |
* @param array $results['scripts'] Additional scripts required by the latest set of IS posts. |
| 1079 |
* @param array|bool $initial_scripts Set of scripts loaded on each page. |
| 1080 |
* @param array $results Array of Infinite Scroll results. |
| 1081 |
* @param array $query_args Array of Query arguments. |
| 1082 |
* @param WP_Query $wp_query WP Query. |
| 1083 |
*/ |
| 1084 |
$results['scripts'] = apply_filters( |
| 1085 |
'infinite_scroll_additional_scripts', |
| 1086 |
$results['scripts'], |
| 1087 |
$initial_scripts, |
| 1088 |
$results, |
| 1089 |
$query_args, |
| 1090 |
$wp_query |
| 1091 |
); |
| 1092 |
|
| 1093 |
if ( empty( $results['scripts'] ) ) |
| 1094 |
unset( $results['scripts' ] ); |
| 1095 |
|
| 1096 |
// Parse and sanitize the style handles already output |
| 1097 |
$initial_styles = isset( $_REQUEST['styles'] ) && is_array( $_REQUEST['styles'] ) ? array_map( 'sanitize_text_field', $_REQUEST['styles'] ) : false; |
| 1098 |
|
| 1099 |
if ( is_array( $initial_styles ) ) { |
| 1100 |
global $wp_styles; |
| 1101 |
|
| 1102 |
// Identify new styles needed by the latest set of IS posts |
| 1103 |
$new_styles = array_diff( $wp_styles->done, $initial_styles ); |
| 1104 |
|
| 1105 |
// If new styles are needed, extract relevant data from $wp_styles |
| 1106 |
if ( ! empty( $new_styles ) ) { |
| 1107 |
$results['styles'] = array(); |
| 1108 |
|
| 1109 |
foreach ( $new_styles as $handle ) { |
| 1110 |
// Abort if somehow the handle doesn't correspond to a registered stylesheet |
| 1111 |
if ( ! isset( $wp_styles->registered[ $handle ] ) ) |
| 1112 |
continue; |
| 1113 |
|
| 1114 |
// Provide basic style data |
| 1115 |
$style_data = array( |
| 1116 |
'handle' => $handle, |
| 1117 |
'media' => 'all' |
| 1118 |
); |
| 1119 |
|
| 1120 |
// Base source |
| 1121 |
$src = $wp_styles->registered[ $handle ]->src; |
| 1122 |
|
| 1123 |
// Take base_url into account |
| 1124 |
if ( strpos( $src, 'http' ) !== 0 ) |
| 1125 |
$src = $wp_styles->base_url . $src; |
| 1126 |
|
| 1127 |
// Version and additional arguments |
| 1128 |
if ( null === $wp_styles->registered[ $handle ]->ver ) |
| 1129 |
$ver = ''; |
| 1130 |
else |
| 1131 |
$ver = $wp_styles->registered[ $handle ]->ver ? $wp_styles->registered[ $handle ]->ver : $wp_styles->default_version; |
| 1132 |
|
| 1133 |
if ( isset($wp_styles->args[ $handle ] ) ) |
| 1134 |
$ver = $ver ? $ver . '&' . $wp_styles->args[$handle] : $wp_styles->args[$handle]; |
| 1135 |
|
| 1136 |
// Full stylesheet source with version info |
| 1137 |
$style_data['src'] = add_query_arg( 'ver', $ver, $src ); |
| 1138 |
|
| 1139 |
// Parse stylesheet's conditional comments if present, converting to logic executable in JS |
| 1140 |
if ( isset( $wp_styles->registered[ $handle ]->extra['conditional'] ) && $wp_styles->registered[ $handle ]->extra['conditional'] ) { |
| 1141 |
// First, convert conditional comment operators to standard logical operators. %ver is replaced in JS with the IE version |
| 1142 |
$style_data['conditional'] = str_replace( array( |
| 1143 |
'lte', |
| 1144 |
'lt', |
| 1145 |
'gte', |
| 1146 |
'gt' |
| 1147 |
), array( |
| 1148 |
'%ver <=', |
| 1149 |
'%ver <', |
| 1150 |
'%ver >=', |
| 1151 |
'%ver >', |
| 1152 |
), $wp_styles->registered[ $handle ]->extra['conditional'] ); |
| 1153 |
|
| 1154 |
// 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(). |
| 1155 |
$style_data['conditional'] = preg_replace( '#!\s*IE(\s*\d+){0}#i', '1==2', $style_data['conditional'] ); |
| 1156 |
|
| 1157 |
// Lastly, remove the IE strings |
| 1158 |
$style_data['conditional'] = str_replace( 'IE', '', $style_data['conditional'] ); |
| 1159 |
} |
| 1160 |
|
| 1161 |
// Parse requested media context for stylesheet |
| 1162 |
if ( isset( $wp_styles->registered[ $handle ]->args ) ) |
| 1163 |
$style_data['media'] = esc_attr( $wp_styles->registered[ $handle ]->args ); |
| 1164 |
|
| 1165 |
// Add stylesheet to data that will be returned to IS JS |
| 1166 |
array_push( $results['styles'], $style_data ); |
| 1167 |
} |
| 1168 |
} |
| 1169 |
} |
| 1170 |
|
| 1171 |
// Expose additional stylesheet data to filters, but only include in final `$results` array if needed. |
| 1172 |
if ( ! isset( $results['styles'] ) ) |
| 1173 |
$results['styles'] = array(); |
| 1174 |
|
| 1175 |
/** |
| 1176 |
* Filter the additional styles required by the latest set of IS posts. |
| 1177 |
* |
| 1178 |
* @module infinite-scroll |
| 1179 |
* |
| 1180 |
* @since 2.1.2 |
| 1181 |
* |
| 1182 |
* @param array $results['styles'] Additional styles required by the latest set of IS posts. |
| 1183 |
* @param array|bool $initial_styles Set of styles loaded on each page. |
| 1184 |
* @param array $results Array of Infinite Scroll results. |
| 1185 |
* @param array $query_args Array of Query arguments. |
| 1186 |
* @param WP_Query $wp_query WP Query. |
| 1187 |
*/ |
| 1188 |
$results['styles'] = apply_filters( |
| 1189 |
'infinite_scroll_additional_stylesheets', |
| 1190 |
$results['styles'], |
| 1191 |
$initial_styles, |
| 1192 |
$results, |
| 1193 |
$query_args, |
| 1194 |
$wp_query |
| 1195 |
); |
| 1196 |
|
| 1197 |
if ( empty( $results['styles'] ) ) |
| 1198 |
unset( $results['styles' ] ); |
| 1199 |
|
| 1200 |
// Lastly, return the IS results array |
| 1201 |
return $results; |
| 1202 |
} |
| 1203 |
|
| 1204 |
/** |
| 1205 |
* Runs the query and returns the results via JSON. |
| 1206 |
* Triggered by an AJAX request. |
| 1207 |
* |
| 1208 |
* @global $wp_query |
| 1209 |
* @global $wp_the_query |
| 1210 |
* @uses current_theme_supports, get_option, self::wp_query, 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 |
| 1211 |
* @return string or null |
| 1212 |
*/ |
| 1213 |
function query() { |
| 1214 |
if ( ! isset( $_REQUEST['page'] ) || ! current_theme_supports( 'infinite-scroll' ) ) |
| 1215 |
die; |
| 1216 |
|
| 1217 |
$page = (int) $_REQUEST['page']; |
| 1218 |
|
| 1219 |
// Sanitize and set $previousday. Expected format: dd.mm.yy |
| 1220 |
if ( preg_match( '/^\d{2}\.\d{2}\.\d{2}$/', $_REQUEST['currentday'] ) ) { |
| 1221 |
global $previousday; |
| 1222 |
$previousday = $_REQUEST['currentday']; |
| 1223 |
} |
| 1224 |
|
| 1225 |
$post_status = array( 'publish' ); |
| 1226 |
if ( current_user_can( 'read_private_posts' ) ) |
| 1227 |
array_push( $post_status, 'private' ); |
| 1228 |
|
| 1229 |
$order = in_array( $_REQUEST['order'], array( 'ASC', 'DESC' ) ) ? $_REQUEST['order'] : 'DESC'; |
| 1230 |
|
| 1231 |
$query_args = array_merge( self::wp_query()->query_vars, array( |
| 1232 |
'paged' => $page, |
| 1233 |
'post_status' => $post_status, |
| 1234 |
'posts_per_page' => self::posts_per_page(), |
| 1235 |
'order' => $order |
| 1236 |
) ); |
| 1237 |
|
| 1238 |
// 4.0 ?s= compatibility, see https://core.trac.wordpress.org/ticket/11330#comment:50 |
| 1239 |
if ( empty( $query_args['s'] ) && ! isset( self::wp_query()->query['s'] ) ) { |
| 1240 |
unset( $query_args['s'] ); |
| 1241 |
} |
| 1242 |
|
| 1243 |
// By default, don't query for a specific page of a paged post object. |
| 1244 |
// This argument can come from merging self::wp_query() into $query_args above. |
| 1245 |
// Since IS is only used on archives, we should always display the first page of any paged content. |
| 1246 |
unset( $query_args['page'] ); |
| 1247 |
|
| 1248 |
/** |
| 1249 |
* Filter the array of main query arguments. |
| 1250 |
* |
| 1251 |
* @module infinite-scroll |
| 1252 |
* |
| 1253 |
* @since 2.0.1 |
| 1254 |
* |
| 1255 |
* @param array $query_args Array of Query arguments. |
| 1256 |
*/ |
| 1257 |
$query_args = apply_filters( 'infinite_scroll_query_args', $query_args ); |
| 1258 |
|
| 1259 |
add_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 ); |
| 1260 |
|
| 1261 |
$GLOBALS['wp_the_query'] = $GLOBALS['wp_query'] = $infinite_scroll_query = new WP_Query(); |
| 1262 |
|
| 1263 |
$infinite_scroll_query->query( $query_args ); |
| 1264 |
|
| 1265 |
remove_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 ); |
| 1266 |
|
| 1267 |
$results = array(); |
| 1268 |
|
| 1269 |
if ( have_posts() ) { |
| 1270 |
// Fire wp_head to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer. |
| 1271 |
ob_start(); |
| 1272 |
wp_head(); |
| 1273 |
while ( ob_get_length() ) { |
| 1274 |
ob_end_clean(); |
| 1275 |
} |
| 1276 |
|
| 1277 |
$results['type'] = 'success'; |
| 1278 |
|
| 1279 |
/** |
| 1280 |
* Gather renderer callbacks. These will be called in order and allow multiple callbacks to be queued. Once content is found, no futher callbacks will run. |
| 1281 |
* |
| 1282 |
* @module infinite-scroll |
| 1283 |
* |
| 1284 |
* @since 6.0.0 |
| 1285 |
*/ |
| 1286 |
$callbacks = apply_filters( 'infinite_scroll_render_callbacks', array( |
| 1287 |
self::get_settings()->render, // This is the setting callback e.g. from add theme support. |
| 1288 |
) ); |
| 1289 |
|
| 1290 |
// Append fallback callback. That rhymes. |
| 1291 |
$callbacks[] = array( $this, 'render' ); |
| 1292 |
|
| 1293 |
foreach ( $callbacks as $callback ) { |
| 1294 |
if ( false !== $callback && is_callable( $callback ) ) { |
| 1295 |
rewind_posts(); |
| 1296 |
ob_start(); |
| 1297 |
add_action( 'infinite_scroll_render', $callback ); |
| 1298 |
|
| 1299 |
/** |
| 1300 |
* Fires when rendering Infinite Scroll posts. |
| 1301 |
* |
| 1302 |
* @module infinite-scroll |
| 1303 |
* |
| 1304 |
* @since 2.0.0 |
| 1305 |
*/ |
| 1306 |
do_action( 'infinite_scroll_render' ); |
| 1307 |
|
| 1308 |
$results['html'] = ob_get_clean(); |
| 1309 |
remove_action( 'infinite_scroll_render', $callback ); |
| 1310 |
} |
| 1311 |
if ( ! empty( $results['html'] ) ) { |
| 1312 |
break; |
| 1313 |
} |
| 1314 |
} |
| 1315 |
|
| 1316 |
// If primary and fallback rendering methods fail, prevent further IS rendering attempts. Otherwise, wrap the output if requested. |
| 1317 |
if ( empty( $results['html'] ) ) { |
| 1318 |
unset( $results['html'] ); |
| 1319 |
/** |
| 1320 |
* Fires when Infinite Scoll doesn't render any posts. |
| 1321 |
* |
| 1322 |
* @module infinite-scroll |
| 1323 |
* |
| 1324 |
* @since 2.0.0 |
| 1325 |
*/ |
| 1326 |
do_action( 'infinite_scroll_empty' ); |
| 1327 |
$results['type'] = 'empty'; |
| 1328 |
} elseif ( $this->has_wrapper() ) { |
| 1329 |
$wrapper_classes = is_string( self::get_settings()->wrapper ) ? self::get_settings()->wrapper : 'infinite-wrap'; |
| 1330 |
$wrapper_classes .= ' infinite-view-' . $page; |
| 1331 |
$wrapper_classes = trim( $wrapper_classes ); |
| 1332 |
|
| 1333 |
$results['html'] = '<div class="' . esc_attr( $wrapper_classes ) . '" id="infinite-view-' . $page . '" data-page-num="' . $page . '">' . $results['html'] . '</div>'; |
| 1334 |
} |
| 1335 |
|
| 1336 |
// Fire wp_footer to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer. |
| 1337 |
ob_start(); |
| 1338 |
wp_footer(); |
| 1339 |
while ( ob_get_length() ) { |
| 1340 |
ob_end_clean(); |
| 1341 |
} |
| 1342 |
|
| 1343 |
if ( 'success' == $results['type'] ) { |
| 1344 |
global $currentday; |
| 1345 |
$results['lastbatch'] = self::is_last_batch(); |
| 1346 |
$results['currentday'] = $currentday; |
| 1347 |
} |
| 1348 |
|
| 1349 |
// Loop through posts to capture sharing data for new posts loaded via Infinite Scroll |
| 1350 |
if ( 'success' == $results['type'] && function_exists( 'sharing_register_post_for_share_counts' ) ) { |
| 1351 |
global $jetpack_sharing_counts; |
| 1352 |
|
| 1353 |
while( have_posts() ) { |
| 1354 |
the_post(); |
| 1355 |
|
| 1356 |
sharing_register_post_for_share_counts( get_the_ID() ); |
| 1357 |
} |
| 1358 |
|
| 1359 |
$results['postflair'] = array_flip( $jetpack_sharing_counts ); |
| 1360 |
} |
| 1361 |
} else { |
| 1362 |
/** This action is already documented in modules/infinite-scroll/infinity.php */ |
| 1363 |
do_action( 'infinite_scroll_empty' ); |
| 1364 |
$results['type'] = 'empty'; |
| 1365 |
} |
| 1366 |
|
| 1367 |
wp_send_json( |
| 1368 |
/** |
| 1369 |
* Filter the Infinite Scroll results. |
| 1370 |
* |
| 1371 |
* @module infinite-scroll |
| 1372 |
* |
| 1373 |
* @since 2.0.0 |
| 1374 |
* |
| 1375 |
* @param array $results Array of Infinite Scroll results. |
| 1376 |
* @param array $query_args Array of main query arguments. |
| 1377 |
* @param WP_Query $wp_query WP Query. |
| 1378 |
*/ |
| 1379 |
apply_filters( 'infinite_scroll_results', $results, $query_args, self::wp_query() ) |
| 1380 |
); |
| 1381 |
} |
| 1382 |
|
| 1383 |
/** |
| 1384 |
* Update the $allowed_vars array with the standard WP public and private |
| 1385 |
* query vars, as well as taxonomy vars |
| 1386 |
* |
| 1387 |
* @global $wp |
| 1388 |
* @param array $allowed_vars |
| 1389 |
* @filter infinite_scroll_allowed_vars |
| 1390 |
* @return array |
| 1391 |
*/ |
| 1392 |
function allowed_query_vars( $allowed_vars ) { |
| 1393 |
global $wp; |
| 1394 |
|
| 1395 |
$allowed_vars += $wp->public_query_vars; |
| 1396 |
$allowed_vars += $wp->private_query_vars; |
| 1397 |
$allowed_vars += $this->get_taxonomy_vars(); |
| 1398 |
|
| 1399 |
foreach ( array_keys( $allowed_vars, 'paged' ) as $key ) { |
| 1400 |
unset( $allowed_vars[ $key ] ); |
| 1401 |
} |
| 1402 |
|
| 1403 |
return array_unique( $allowed_vars ); |
| 1404 |
} |
| 1405 |
|
| 1406 |
/** |
| 1407 |
* Returns an array of stock and custom taxonomy query vars |
| 1408 |
* |
| 1409 |
* @global $wp_taxonomies |
| 1410 |
* @return array |
| 1411 |
*/ |
| 1412 |
function get_taxonomy_vars() { |
| 1413 |
global $wp_taxonomies; |
| 1414 |
|
| 1415 |
$taxonomy_vars = array(); |
| 1416 |
foreach ( $wp_taxonomies as $taxonomy => $t ) { |
| 1417 |
if ( $t->query_var ) |
| 1418 |
$taxonomy_vars[] = $t->query_var; |
| 1419 |
} |
| 1420 |
|
| 1421 |
// still needed? |
| 1422 |
$taxonomy_vars[] = 'tag_id'; |
| 1423 |
|
| 1424 |
return $taxonomy_vars; |
| 1425 |
} |
| 1426 |
|
| 1427 |
/** |
| 1428 |
* Update the $query_args array with the parameters provided via AJAX/GET. |
| 1429 |
* |
| 1430 |
* @param array $query_args |
| 1431 |
* @filter infinite_scroll_query_args |
| 1432 |
* @return array |
| 1433 |
*/ |
| 1434 |
function inject_query_args( $query_args ) { |
| 1435 |
/** |
| 1436 |
* Filter the array of allowed Infinite Scroll query arguments. |
| 1437 |
* |
| 1438 |
* @module infinite-scroll |
| 1439 |
* |
| 1440 |
* @since 2.6.0 |
| 1441 |
* |
| 1442 |
* @param array $args Array of allowed Infinite Scroll query arguments. |
| 1443 |
* @param array $query_args Array of query arguments. |
| 1444 |
*/ |
| 1445 |
$allowed_vars = apply_filters( 'infinite_scroll_allowed_vars', array(), $query_args ); |
| 1446 |
|
| 1447 |
$query_args = array_merge( $query_args, array( |
| 1448 |
'suppress_filters' => false, |
| 1449 |
) ); |
| 1450 |
|
| 1451 |
if ( is_array( $_REQUEST[ 'query_args' ] ) ) { |
| 1452 |
foreach ( $_REQUEST[ 'query_args' ] as $var => $value ) { |
| 1453 |
if ( in_array( $var, $allowed_vars ) && ! empty( $value ) ) |
| 1454 |
$query_args[ $var ] = $value; |
| 1455 |
} |
| 1456 |
} |
| 1457 |
|
| 1458 |
return $query_args; |
| 1459 |
} |
| 1460 |
|
| 1461 |
/** |
| 1462 |
* Rendering fallback used when themes don't specify their own handler. |
| 1463 |
* |
| 1464 |
* @uses have_posts, the_post, get_template_part, get_post_format |
| 1465 |
* @action infinite_scroll_render |
| 1466 |
* @return string |
| 1467 |
*/ |
| 1468 |
function render() { |
| 1469 |
while ( have_posts() ) { |
| 1470 |
the_post(); |
| 1471 |
|
| 1472 |
get_template_part( 'content', get_post_format() ); |
| 1473 |
} |
| 1474 |
} |
| 1475 |
|
| 1476 |
/** |
| 1477 |
* Allow plugins to filter what archives Infinite Scroll supports |
| 1478 |
* |
| 1479 |
* @uses current_theme_supports, is_home, is_archive, apply_filters, self::get_settings |
| 1480 |
* @return bool |
| 1481 |
*/ |
| 1482 |
public static function archive_supports_infinity() { |
| 1483 |
$supported = current_theme_supports( 'infinite-scroll' ) && ( is_home() || is_archive() || is_search() ); |
| 1484 |
|
| 1485 |
// Disable when previewing a non-active theme in the customizer |
| 1486 |
if ( is_customize_preview() && ! $GLOBALS['wp_customize']->is_theme_active() ) { |
| 1487 |
return false; |
| 1488 |
} |
| 1489 |
|
| 1490 |
/** |
| 1491 |
* Allow plugins to filter what archives Infinite Scroll supports. |
| 1492 |
* |
| 1493 |
* @module infinite-scroll |
| 1494 |
* |
| 1495 |
* @since 2.0.0 |
| 1496 |
* |
| 1497 |
* @param bool $supported Does the Archive page support Infinite Scroll. |
| 1498 |
* @param object self::get_settings() IS settings provided by theme. |
| 1499 |
*/ |
| 1500 |
return (bool) apply_filters( 'infinite_scroll_archive_supported', $supported, self::get_settings() ); |
| 1501 |
} |
| 1502 |
|
| 1503 |
/** |
| 1504 |
* The Infinite Blog Footer |
| 1505 |
* |
| 1506 |
* @uses self::get_settings, self::archive_supports_infinity, self::default_footer |
| 1507 |
* @return string or null |
| 1508 |
*/ |
| 1509 |
function footer() { |
| 1510 |
// Bail if theme requested footer not show |
| 1511 |
if ( false == self::get_settings()->footer ) |
| 1512 |
return; |
| 1513 |
|
| 1514 |
// We only need the new footer for the 'scroll' type |
| 1515 |
if ( 'scroll' != self::get_settings()->type || ! self::archive_supports_infinity() ) |
| 1516 |
return; |
| 1517 |
|
| 1518 |
if ( self::is_last_batch() ) { |
| 1519 |
return; |
| 1520 |
} |
| 1521 |
|
| 1522 |
// Display a footer, either user-specified or a default |
| 1523 |
if ( false !== self::get_settings()->footer_callback && is_callable( self::get_settings()->footer_callback ) ) |
| 1524 |
call_user_func( self::get_settings()->footer_callback, self::get_settings() ); |
| 1525 |
else |
| 1526 |
self::default_footer(); |
| 1527 |
} |
| 1528 |
|
| 1529 |
/** |
| 1530 |
* Render default IS footer |
| 1531 |
* |
| 1532 |
* @uses __, wp_get_theme, apply_filters, home_url, esc_attr, get_bloginfo, bloginfo |
| 1533 |
* @return string |
| 1534 |
* |
| 1535 |
*/ |
| 1536 |
private function default_footer() { |
| 1537 |
if ( '' !== get_privacy_policy_url() ) { |
| 1538 |
$credits = get_the_privacy_policy_link() . '<span role="separator" aria-hidden="true"> / </span>'; |
| 1539 |
} else { |
| 1540 |
$credits = ''; |
| 1541 |
} |
| 1542 |
$credits .= sprintf( |
| 1543 |
'<a href="https://wordpress.org/" rel="noopener noreferrer" target="_blank" rel="generator">%1$s</a> ', |
| 1544 |
__( 'Proudly powered by WordPress', 'jetpack' ) |
| 1545 |
); |
| 1546 |
$credits .= sprintf( |
| 1547 |
/* translators: %1$s is the name of a theme */ |
| 1548 |
__( 'Theme: %1$s.', 'jetpack' ), |
| 1549 |
wp_get_theme()->Name |
| 1550 |
); |
| 1551 |
/** |
| 1552 |
* Filter Infinite Scroll's credit text. |
| 1553 |
* |
| 1554 |
* @module infinite-scroll |
| 1555 |
* |
| 1556 |
* @since 2.0.0 |
| 1557 |
* |
| 1558 |
* @param string $credits Infinite Scroll credits. |
| 1559 |
*/ |
| 1560 |
$credits = apply_filters( 'infinite_scroll_credit', $credits ); |
| 1561 |
|
| 1562 |
?> |
| 1563 |
<div id="infinite-footer"> |
| 1564 |
<div class="container"> |
| 1565 |
<div class="blog-info"> |
| 1566 |
<a id="infinity-blog-title" href="<?php echo home_url( '/' ); ?>" rel="home"> |
| 1567 |
<?php bloginfo( 'name' ); ?> |
| 1568 |
</a> |
| 1569 |
</div> |
| 1570 |
<div class="blog-credits"> |
| 1571 |
<?php echo $credits; ?> |
| 1572 |
</div> |
| 1573 |
</div> |
| 1574 |
</div><!-- #infinite-footer --> |
| 1575 |
<?php |
| 1576 |
} |
| 1577 |
|
| 1578 |
/** |
| 1579 |
* Ensure that IS doesn't interfere with Grunion by stripping IS query arguments from the Grunion redirect URL. |
| 1580 |
* When arguments are present, Grunion redirects to the IS AJAX endpoint. |
| 1581 |
* |
| 1582 |
* @param string $url |
| 1583 |
* @uses remove_query_arg |
| 1584 |
* @filter grunion_contact_form_redirect_url |
| 1585 |
* @return string |
| 1586 |
*/ |
| 1587 |
public function filter_grunion_redirect_url( $url ) { |
| 1588 |
// Remove IS query args, if present |
| 1589 |
if ( false !== strpos( $url, 'infinity=scrolling' ) ) { |
| 1590 |
$url = remove_query_arg( array( |
| 1591 |
'infinity', |
| 1592 |
'action', |
| 1593 |
'page', |
| 1594 |
'order', |
| 1595 |
'scripts', |
| 1596 |
'styles' |
| 1597 |
), $url ); |
| 1598 |
} |
| 1599 |
|
| 1600 |
return $url; |
| 1601 |
} |
| 1602 |
}; |
| 1603 |
|
| 1604 |
/** |
| 1605 |
* Initialize The_Neverending_Home_Page |
| 1606 |
*/ |
| 1607 |
function the_neverending_home_page_init() { |
| 1608 |
if ( ! current_theme_supports( 'infinite-scroll' ) ) |
| 1609 |
return; |
| 1610 |
|
| 1611 |
new The_Neverending_Home_Page; |
| 1612 |
} |
| 1613 |
add_action( 'init', 'the_neverending_home_page_init', 20 ); |
| 1614 |
|
| 1615 |
/** |
| 1616 |
* Check whether the current theme is infinite-scroll aware. |
| 1617 |
* If so, include the files which add theme support. |
| 1618 |
*/ |
| 1619 |
function the_neverending_home_page_theme_support() { |
| 1620 |
if ( |
| 1621 |
defined( 'IS_WPCOM' ) && IS_WPCOM && |
| 1622 |
defined( 'REST_API_REQUEST' ) && REST_API_REQUEST && |
| 1623 |
! doing_action( 'restapi_theme_after_setup_theme' ) |
| 1624 |
) { |
| 1625 |
// Don't source theme compat files until we're in the site's context |
| 1626 |
return; |
| 1627 |
} |
| 1628 |
$theme_name = get_stylesheet(); |
| 1629 |
|
| 1630 |
/** |
| 1631 |
* Filter the path to the Infinite Scroll compatibility file. |
| 1632 |
* |
| 1633 |
* @module infinite-scroll |
| 1634 |
* |
| 1635 |
* @since 2.0.0 |
| 1636 |
* |
| 1637 |
* @param string $str IS compatibility file path. |
| 1638 |
* @param string $theme_name Theme name. |
| 1639 |
*/ |
| 1640 |
$customization_file = apply_filters( 'infinite_scroll_customization_file', dirname( __FILE__ ) . "/themes/{$theme_name}.php", $theme_name ); |
| 1641 |
|
| 1642 |
if ( is_readable( $customization_file ) ) |
| 1643 |
require_once( $customization_file ); |
| 1644 |
} |
| 1645 |
add_action( 'after_setup_theme', 'the_neverending_home_page_theme_support', 5 ); |
| 1646 |
|
| 1647 |
/** |
| 1648 |
* Early accommodation of the Infinite Scroll AJAX request |
| 1649 |
*/ |
| 1650 |
if ( The_Neverending_Home_Page::got_infinity() ) { |
| 1651 |
/** |
| 1652 |
* If we're sure this is an AJAX request (i.e. the HTTP_X_REQUESTED_WITH header says so), |
| 1653 |
* indicate it as early as possible for actions like init |
| 1654 |
*/ |
| 1655 |
if ( ! defined( 'DOING_AJAX' ) && |
| 1656 |
isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) && |
| 1657 |
strtoupper( $_SERVER['HTTP_X_REQUESTED_WITH'] ) == 'XMLHTTPREQUEST' |
| 1658 |
) { |
| 1659 |
define( 'DOING_AJAX', true ); |
| 1660 |
} |
| 1661 |
|
| 1662 |
// Don't load the admin bar when doing the AJAX response. |
| 1663 |
show_admin_bar( false ); |
| 1664 |
} |
| 1665 |
|
