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<?php |
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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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* 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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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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// Plugin compatibility |
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add_filter( 'grunion_contact_form_redirect_url', array( $this, 'filter_grunion_redirect_url' ) ); |
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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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* 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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static $option_name_enabled = 'infinite_scroll'; |
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/** |
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* Parse IS settings provided by theme |
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* |
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* @uses get_theme_support, infinite_scroll_has_footer_widgets, sanitize_title, add_action, get_option, wp_parse_args, is_active_sidebar |
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* @return object |
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*/ |
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static function get_settings() { |
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if ( is_null( self::$settings ) ) { |
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$css_pattern = '#[^A-Z\d\-_]#i'; |
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$settings = $defaults = array( |
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'type' => 'scroll', // scroll | click |
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'requested_type' => 'scroll', // store the original type for use when logic overrides it |
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'footer_widgets' => false, // true | false | sidebar_id | array of sidebar_ids -- last two are checked with is_active_sidebar |
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'container' => 'content', // container html id |
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'wrapper' => true, // true | false | html class |
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'render' => false, // optional function, otherwise the `content` template part will be used |
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'footer' => true, // boolean to enable or disable the infinite footer | string to provide an html id to derive footer width from |
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'footer_callback' => false, // function to be called to render the IS footer, in place of the default |
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'posts_per_page' => false, // int | false to set based on IS type |
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'click_handle' => true, // boolean to enable or disable rendering the click handler div. If type is click and this is false, page must include its own trigger with the HTML ID `infinite-handle`. |
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); |
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// Validate settings passed through add_theme_support() |
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$_settings = get_theme_support( 'infinite-scroll' ); |
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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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break; |
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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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break; |
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case 'container' : |
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View Code Duplication |
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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if ( ! empty( $value ) ) |
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$settings[ $key ] = $value; |
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} |
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break; |
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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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add_action( 'infinite_scroll_render', $value ); |
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} |
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break; |
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View Code Duplication |
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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if ( ! empty( $value ) ) |
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$settings[ $key ] = $value; |
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} |
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break; |
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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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break; |
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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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break; |
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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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break; |
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default: |
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continue; |
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break; |
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} |
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} |
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} elseif ( is_string( $_settings[0] ) ) { |
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// Checks below are for backwards compatibility |
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// Container to append new posts to |
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$settings['container'] = preg_replace( $css_pattern, '', $_settings[0] ); |
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// Wrap IS elements? |
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if ( isset( $_settings[1] ) ) |
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$settings['wrapper'] = (bool) $_settings[1]; |
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} |
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} |
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// Always ensure all values are present in the final array |
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$settings = wp_parse_args( $settings, $defaults ); |
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// Check if a legacy `infinite_scroll_has_footer_widgets()` function is defined and override the footer_widgets parameter's value. |
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// Otherwise, if a widget area ID or array of IDs was provided in the footer_widgets parameter, check if any contains any widgets. |
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// It is safe to use `is_active_sidebar()` before the sidebar is registered as this function doesn't check for a sidebar's existence when determining if it contains any widgets. |
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if ( function_exists( 'infinite_scroll_has_footer_widgets' ) ) { |
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$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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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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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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* 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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// 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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// 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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// 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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// posts_per_page defaults to 7 for scroll, posts_per_page option for click |
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if ( false === $settings['posts_per_page'] ) { |
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if ( 'scroll' === $settings['type'] ) { |
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$settings['posts_per_page'] = 7; |
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} |
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else { |
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$settings['posts_per_page'] = (int) get_option( 'posts_per_page' ); |
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} |
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} |
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// If IS is set to click, and if the site owner changed posts_per_page, let's use that |
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if ( |
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'click' == $settings['type'] |
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&& ( '10' !== get_option( 'posts_per_page' ) ) |
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) { |
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$settings['posts_per_page'] = (int) get_option( 'posts_per_page' ); |
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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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// 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', $settings ); |
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} |
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/** This filter is documented in modules/infinite-scroll/infinity.php */ |
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return (object) apply_filters( 'infinite_scroll_settings', self::$settings ); |
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} |
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/** |
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* 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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272
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* Filter the Infinite Scroll query object. |
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* |
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274
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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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* Has infinite scroll been triggered? |
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*/ |
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static function got_infinity() { |
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/** |
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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 |
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* |
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* @since 3.9.0 |
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* |
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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' ] ) ); |
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} |
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/** |
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300
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* Is this guaranteed to be the last batch of posts? |
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301
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*/ |
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302
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static function is_last_batch() { |
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return (bool) ( count( self::wp_query()->posts ) < self::get_settings()->posts_per_page ); |
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} |
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|
|
306
|
|
|
/** |
|
307
|
|
|
* The more tag will be ignored by default if the blog page isn't our homepage. |
|
308
|
|
|
* Let's force the $more global to false. |
|
309
|
|
|
*/ |
|
310
|
|
|
function preserve_more_tag( $array ) { |
|
311
|
|
|
global $more; |
|
312
|
|
|
|
|
313
|
|
|
if ( self::got_infinity() ) |
|
314
|
|
|
$more = 0; //0 = show content up to the more tag. Add more link. |
|
315
|
|
|
|
|
316
|
|
|
return $array; |
|
317
|
|
|
} |
|
318
|
|
|
|
|
319
|
|
|
/** |
|
320
|
|
|
* Add a checkbox field to Settings > Reading |
|
321
|
|
|
* for enabling infinite scroll. |
|
322
|
|
|
* |
|
323
|
|
|
* Only show if the current theme supports infinity. |
|
324
|
|
|
* |
|
325
|
|
|
* @uses current_theme_supports, add_settings_field, __, register_setting |
|
326
|
|
|
* @action admin_init |
|
327
|
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|
* @return null |
|
328
|
|
|
*/ |
|
329
|
|
|
function settings_api_init() { |
|
330
|
|
|
if ( ! current_theme_supports( 'infinite-scroll' ) ) |
|
331
|
|
|
return; |
|
332
|
|
|
|
|
333
|
|
|
// Add the setting field [infinite_scroll] and place it in Settings > Reading |
|
334
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|
|
add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . __( 'To infinity and beyond', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' ); |
|
335
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|
|
register_setting( 'reading', self::$option_name_enabled, 'esc_attr' ); |
|
336
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|
|
} |
|
337
|
|
|
|
|
338
|
|
|
/** |
|
339
|
|
|
* HTML code to display a checkbox true/false option |
|
340
|
|
|
* for the infinite_scroll setting. |
|
341
|
|
|
*/ |
|
342
|
|
|
function infinite_setting_html() { |
|
343
|
|
|
$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>'; |
|
344
|
|
|
|
|
345
|
|
|
// If the blog has footer widgets, show a notice instead of the checkbox |
|
346
|
|
|
if ( self::get_settings()->footer_widgets || 'click' == self::get_settings()->requested_type ) { |
|
347
|
|
|
echo '<label>' . $notice . '</label>'; |
|
348
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|
|
} else { |
|
349
|
|
|
echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$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>'; |
|
350
|
|
|
} |
|
351
|
|
|
} |
|
352
|
|
|
|
|
353
|
|
|
/** |
|
354
|
|
|
* Does the legwork to determine whether the feature is enabled. |
|
355
|
|
|
* |
|
356
|
|
|
* @uses current_theme_supports, self::archive_supports_infinity, self::get_settings, add_filter, wp_enqueue_script, plugins_url, wp_enqueue_style, add_action |
|
357
|
|
|
* @action template_redirect |
|
358
|
|
|
* @return null |
|
359
|
|
|
*/ |
|
360
|
|
|
function action_template_redirect() { |
|
361
|
|
|
// Check that we support infinite scroll, and are on the home page. |
|
362
|
|
|
if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() ) |
|
363
|
|
|
return; |
|
364
|
|
|
|
|
365
|
|
|
$id = self::get_settings()->container; |
|
366
|
|
|
|
|
367
|
|
|
// Check that we have an id. |
|
368
|
|
|
if ( empty( $id ) ) |
|
369
|
|
|
return; |
|
370
|
|
|
|
|
371
|
|
|
// Make sure there are enough posts for IS |
|
372
|
|
|
if ( 'click' == self::get_settings()->type && self::is_last_batch() ) |
|
373
|
|
|
return; |
|
374
|
|
|
|
|
375
|
|
|
// Add a class to the body. |
|
376
|
|
|
add_filter( 'body_class', array( $this, 'body_class' ) ); |
|
377
|
|
|
|
|
378
|
|
|
// Add our scripts. |
|
379
|
|
|
wp_enqueue_script( 'the-neverending-homepage', plugins_url( 'infinity.js', __FILE__ ), array( 'jquery' ), '4.0.0', true ); |
|
380
|
|
|
|
|
381
|
|
|
// Add our default styles. |
|
382
|
|
|
wp_enqueue_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20140422' ); |
|
383
|
|
|
|
|
384
|
|
|
add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_spinner_scripts' ) ); |
|
385
|
|
|
|
|
386
|
|
|
add_action( 'wp_footer', array( $this, 'action_wp_footer_settings' ), 2 ); |
|
387
|
|
|
|
|
388
|
|
|
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 |
|
389
|
|
|
|
|
390
|
|
|
add_filter( 'infinite_scroll_results', array( $this, 'filter_infinite_scroll_results' ), 10, 3 ); |
|
391
|
|
|
} |
|
392
|
|
|
|
|
393
|
|
|
/** |
|
394
|
|
|
* Enqueue spinner scripts. |
|
395
|
|
|
*/ |
|
396
|
|
|
function enqueue_spinner_scripts() { |
|
397
|
|
|
wp_enqueue_script( 'jquery.spin' ); |
|
398
|
|
|
} |
|
399
|
|
|
|
|
400
|
|
|
/** |
|
401
|
|
|
* Adds an 'infinite-scroll' class to the body. |
|
402
|
|
|
*/ |
|
403
|
|
|
function body_class( $classes ) { |
|
404
|
|
|
// Do not add infinity-scroll class if disabled through the Reading page |
|
405
|
|
|
$disabled = '' === get_option( self::$option_name_enabled ) ? true : false; |
|
406
|
|
|
if ( ! $disabled || 'click' == self::get_settings()->type ) { |
|
407
|
|
|
$classes[] = 'infinite-scroll'; |
|
408
|
|
|
|
|
409
|
|
|
if ( 'scroll' == self::get_settings()->type ) |
|
410
|
|
|
$classes[] = 'neverending'; |
|
411
|
|
|
} |
|
412
|
|
|
|
|
413
|
|
|
return $classes; |
|
414
|
|
|
} |
|
415
|
|
|
|
|
416
|
|
|
/** |
|
417
|
|
|
* 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 |
|
418
|
|
|
* |
|
419
|
|
|
* @uses self::wp_query |
|
420
|
|
|
* @uses self::get_last_post_date |
|
421
|
|
|
* @uses self::has_only_title_matching_posts |
|
422
|
|
|
* @return array |
|
423
|
|
|
*/ |
|
424
|
|
|
function get_excluded_posts() { |
|
425
|
|
|
|
|
426
|
|
|
$excluded_posts = array(); |
|
427
|
|
|
//loop through posts returned by wp_query call |
|
428
|
|
|
foreach( self::wp_query()->get_posts() as $post ) { |
|
429
|
|
|
|
|
430
|
|
|
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ? self::wp_query()->query_vars['orderby'] : ''; |
|
431
|
|
|
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false ); |
|
432
|
|
|
if ( 'modified' === $orderby || false === $post_date ) { |
|
433
|
|
|
$post_date = $post->post_modified; |
|
434
|
|
|
} |
|
435
|
|
|
|
|
436
|
|
|
//in case all posts initially displayed match the keyword by title we add em all to excluded posts array |
|
437
|
|
|
//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 |
|
438
|
|
|
if ( self::has_only_title_matching_posts() || $post_date <= self::get_last_post_date() ) { |
|
439
|
|
|
array_push( $excluded_posts, $post->ID ); |
|
440
|
|
|
} |
|
441
|
|
|
} |
|
442
|
|
|
return $excluded_posts; |
|
443
|
|
|
} |
|
444
|
|
|
|
|
445
|
|
|
/** |
|
446
|
|
|
* 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 |
|
447
|
|
|
* |
|
448
|
|
|
* @uses self::wp_query |
|
449
|
|
|
* @uses self::get_excluded_posts |
|
450
|
|
|
* @return array |
|
451
|
|
|
*/ |
|
452
|
|
|
function get_query_vars() { |
|
453
|
|
|
|
|
454
|
|
|
$query_vars = self::wp_query()->query_vars; |
|
455
|
|
|
//applies to search page only |
|
456
|
|
|
if ( true === self::wp_query()->is_search() ) { |
|
457
|
|
|
//set post__not_in array in query_vars in case it does not exists |
|
458
|
|
|
if ( false === isset( $query_vars['post__not_in'] ) ) { |
|
459
|
|
|
$query_vars['post__not_in'] = array(); |
|
460
|
|
|
} |
|
461
|
|
|
//get excluded posts |
|
462
|
|
|
$excluded = self::get_excluded_posts(); |
|
463
|
|
|
//merge them with other post__not_in posts (eg.: sticky posts) |
|
464
|
|
|
$query_vars['post__not_in'] = array_merge( $query_vars['post__not_in'], $excluded ); |
|
465
|
|
|
} |
|
466
|
|
|
return $query_vars; |
|
467
|
|
|
} |
|
468
|
|
|
|
|
469
|
|
|
/** |
|
470
|
|
|
* This function checks whether all posts returned by initial wp_query match the keyword by title |
|
471
|
|
|
* The code used in this function is borrowed from WP_Query class where it is used to construct like conditions for keywords |
|
472
|
|
|
* |
|
473
|
|
|
* @uses self::wp_query |
|
474
|
|
|
* @return bool |
|
475
|
|
|
*/ |
|
476
|
|
|
function has_only_title_matching_posts() { |
|
477
|
|
|
|
|
478
|
|
|
//apply following logic for search page results only |
|
479
|
|
|
if ( false === self::wp_query()->is_search() ) { |
|
480
|
|
|
return false; |
|
481
|
|
|
} |
|
482
|
|
|
|
|
483
|
|
|
//grab the last posts in the stack as if the last one is title-matching the rest is title-matching as well |
|
484
|
|
|
$post = end( self::wp_query()->posts ); |
|
485
|
|
|
|
|
486
|
|
|
//code inspired by WP_Query class |
|
487
|
|
|
if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', self::wp_query()->get( 's' ), $matches ) ) { |
|
488
|
|
|
$search_terms = self::wp_query()->query_vars['search_terms']; |
|
489
|
|
|
// if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence |
|
490
|
|
|
if ( empty( $search_terms ) || count( $search_terms ) > 9 ) { |
|
491
|
|
|
$search_terms = array( self::wp_query()->get( 's' ) ); |
|
492
|
|
|
} |
|
493
|
|
|
} else { |
|
494
|
|
|
$search_terms = array( self::wp_query()->get( 's' ) ); |
|
495
|
|
|
} |
|
496
|
|
|
|
|
497
|
|
|
//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 |
|
498
|
|
|
$term = current( $search_terms ); |
|
499
|
|
|
if ( ! empty( $term ) && false !== strpos( $post->post_title, $term ) ) { |
|
500
|
|
|
return true; |
|
501
|
|
|
} |
|
502
|
|
|
|
|
503
|
|
|
return false; |
|
504
|
|
|
} |
|
505
|
|
|
|
|
506
|
|
|
/** |
|
507
|
|
|
* Grab the timestamp for the initial query's last post. |
|
508
|
|
|
* |
|
509
|
|
|
* This takes into account the query's 'orderby' parameter and returns |
|
510
|
|
|
* false if the posts are not ordered by date. |
|
511
|
|
|
* |
|
512
|
|
|
* @uses self::got_infinity |
|
513
|
|
|
* @uses self::has_only_title_matching_posts |
|
514
|
|
|
* @uses self::wp_query |
|
515
|
|
|
* @return string 'Y-m-d H:i:s' or false |
|
516
|
|
|
*/ |
|
517
|
|
|
function get_last_post_date() { |
|
518
|
|
|
if ( self::got_infinity() ) |
|
519
|
|
|
return; |
|
520
|
|
|
|
|
521
|
|
|
if ( ! self::wp_query()->have_posts() ) { |
|
522
|
|
|
return null; |
|
523
|
|
|
} |
|
524
|
|
|
|
|
525
|
|
|
//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 |
|
526
|
|
|
if ( true === self::has_only_title_matching_posts() ) { |
|
527
|
|
|
return false; |
|
528
|
|
|
} |
|
529
|
|
|
|
|
530
|
|
|
$post = end( self::wp_query()->posts ); |
|
531
|
|
|
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ? |
|
532
|
|
|
self::wp_query()->query_vars['orderby'] : ''; |
|
533
|
|
|
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false ); |
|
534
|
|
View Code Duplication |
switch ( $orderby ) { |
|
535
|
|
|
case 'modified': |
|
536
|
|
|
return $post->post_modified; |
|
537
|
|
|
case 'date': |
|
538
|
|
|
case '': |
|
539
|
|
|
return $post_date; |
|
540
|
|
|
default: |
|
541
|
|
|
return false; |
|
542
|
|
|
} |
|
543
|
|
|
} |
|
544
|
|
|
|
|
545
|
|
|
/** |
|
546
|
|
|
* Returns the appropriate `wp_posts` table field for a given query's |
|
547
|
|
|
* 'orderby' parameter, if applicable. |
|
548
|
|
|
* |
|
549
|
|
|
* @param optional object $query |
|
550
|
|
|
* @uses self::wp_query |
|
551
|
|
|
* @return string or false |
|
552
|
|
|
*/ |
|
553
|
|
|
function get_query_sort_field( $query = null ) { |
|
554
|
|
|
if ( empty( $query ) ) |
|
555
|
|
|
$query = self::wp_query(); |
|
556
|
|
|
|
|
557
|
|
|
$orderby = isset( $query->query_vars['orderby'] ) ? $query->query_vars['orderby'] : ''; |
|
558
|
|
|
|
|
559
|
|
View Code Duplication |
switch ( $orderby ) { |
|
560
|
|
|
case 'modified': |
|
561
|
|
|
return 'post_modified'; |
|
562
|
|
|
case 'date': |
|
563
|
|
|
case '': |
|
564
|
|
|
return 'post_date'; |
|
565
|
|
|
default: |
|
566
|
|
|
return false; |
|
567
|
|
|
} |
|
568
|
|
|
} |
|
569
|
|
|
|
|
570
|
|
|
/** |
|
571
|
|
|
* Create a where clause that will make sure post queries |
|
572
|
|
|
* will always return results prior to (descending sort) |
|
573
|
|
|
* or before (ascending sort) the last post date. |
|
574
|
|
|
* |
|
575
|
|
|
* @global $wpdb |
|
576
|
|
|
* @param string $where |
|
577
|
|
|
* @param object $query |
|
578
|
|
|
* @uses apply_filters |
|
579
|
|
|
* @filter posts_where |
|
580
|
|
|
* @return string |
|
581
|
|
|
*/ |
|
582
|
|
|
function query_time_filter( $where, $query ) { |
|
583
|
|
|
if ( self::got_infinity() ) { |
|
584
|
|
|
global $wpdb; |
|
585
|
|
|
|
|
586
|
|
|
$sort_field = self::get_query_sort_field( $query ); |
|
587
|
|
|
if ( false == $sort_field ) |
|
|
|
|
|
|
588
|
|
|
return $where; |
|
589
|
|
|
|
|
590
|
|
|
$last_post_date = $_REQUEST['last_post_date']; |
|
591
|
|
|
// Sanitize timestamp |
|
592
|
|
|
if ( empty( $last_post_date ) || !preg_match( '|\d{4}\-\d{2}\-\d{2}|', $last_post_date ) ) |
|
593
|
|
|
return $where; |
|
594
|
|
|
|
|
595
|
|
|
$operator = 'ASC' == $_REQUEST['query_args']['order'] ? '>' : '<'; |
|
596
|
|
|
|
|
597
|
|
|
// Construct the date query using our timestamp |
|
598
|
|
|
$clause = $wpdb->prepare( " AND {$wpdb->posts}.{$sort_field} {$operator} %s", $last_post_date ); |
|
599
|
|
|
|
|
600
|
|
|
/** |
|
601
|
|
|
* Filter Infinite Scroll's SQL date query making sure post queries |
|
602
|
|
|
* will always return results prior to (descending sort) |
|
603
|
|
|
* or before (ascending sort) the last post date. |
|
604
|
|
|
* |
|
605
|
|
|
* @module infinite-scroll |
|
606
|
|
|
* |
|
607
|
|
|
* @param string $clause SQL Date query. |
|
608
|
|
|
* @param object $query Query. |
|
609
|
|
|
* @param string $operator Query operator. |
|
610
|
|
|
* @param string $last_post_date Last Post Date timestamp. |
|
611
|
|
|
*/ |
|
612
|
|
|
$where .= apply_filters( 'infinite_scroll_posts_where', $clause, $query, $operator, $last_post_date ); |
|
613
|
|
|
} |
|
614
|
|
|
|
|
615
|
|
|
return $where; |
|
616
|
|
|
} |
|
617
|
|
|
|
|
618
|
|
|
/** |
|
619
|
|
|
* Let's overwrite the default post_per_page setting to always display a fixed amount. |
|
620
|
|
|
* |
|
621
|
|
|
* @param object $query |
|
622
|
|
|
* @uses is_admin, self::archive_supports_infinity, self::get_settings |
|
623
|
|
|
* @return null |
|
624
|
|
|
*/ |
|
625
|
|
|
function posts_per_page_query( $query ) { |
|
626
|
|
|
if ( ! is_admin() && self::archive_supports_infinity() && $query->is_main_query() ) |
|
627
|
|
|
$query->set( 'posts_per_page', self::get_settings()->posts_per_page ); |
|
628
|
|
|
} |
|
629
|
|
|
|
|
630
|
|
|
/** |
|
631
|
|
|
* Check if the IS output should be wrapped in a div. |
|
632
|
|
|
* Setting value can be a boolean or a string specifying the class applied to the div. |
|
633
|
|
|
* |
|
634
|
|
|
* @uses self::get_settings |
|
635
|
|
|
* @return bool |
|
636
|
|
|
*/ |
|
637
|
|
|
function has_wrapper() { |
|
638
|
|
|
return (bool) self::get_settings()->wrapper; |
|
639
|
|
|
} |
|
640
|
|
|
|
|
641
|
|
|
/** |
|
642
|
|
|
* Returns the Ajax url |
|
643
|
|
|
* |
|
644
|
|
|
* @global $wp |
|
645
|
|
|
* @uses home_url, add_query_arg, apply_filters |
|
646
|
|
|
* @return string |
|
647
|
|
|
*/ |
|
648
|
|
|
function ajax_url() { |
|
649
|
|
|
$base_url = set_url_scheme( home_url( '/' ) ); |
|
650
|
|
|
|
|
651
|
|
|
$ajaxurl = add_query_arg( array( 'infinity' => 'scrolling' ), $base_url ); |
|
652
|
|
|
|
|
653
|
|
|
/** |
|
654
|
|
|
* Filter the Infinite Scroll Ajax URL. |
|
655
|
|
|
* |
|
656
|
|
|
* @module infinite-scroll |
|
657
|
|
|
* |
|
658
|
|
|
* @since 2.0.0 |
|
659
|
|
|
* |
|
660
|
|
|
* @param string $ajaxurl Infinite Scroll Ajax URL. |
|
661
|
|
|
*/ |
|
662
|
|
|
return apply_filters( 'infinite_scroll_ajax_url', $ajaxurl ); |
|
663
|
|
|
} |
|
664
|
|
|
|
|
665
|
|
|
/** |
|
666
|
|
|
* Our own Ajax response, avoiding calling admin-ajax |
|
667
|
|
|
*/ |
|
668
|
|
|
function ajax_response() { |
|
669
|
|
|
// Only proceed if the url query has a key of "Infinity" |
|
670
|
|
|
if ( ! self::got_infinity() ) |
|
671
|
|
|
return false; |
|
672
|
|
|
|
|
673
|
|
|
// This should already be defined below, but make sure. |
|
674
|
|
|
if ( ! defined( 'DOING_AJAX' ) ) { |
|
675
|
|
|
define( 'DOING_AJAX', true ); |
|
676
|
|
|
} |
|
677
|
|
|
|
|
678
|
|
|
@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) ); |
|
|
|
|
|
|
679
|
|
|
send_nosniff_header(); |
|
680
|
|
|
|
|
681
|
|
|
/** |
|
682
|
|
|
* Fires at the end of the Infinite Scroll Ajax response. |
|
683
|
|
|
* |
|
684
|
|
|
* @module infinite-scroll |
|
685
|
|
|
* |
|
686
|
|
|
* @since 2.0.0 |
|
687
|
|
|
*/ |
|
688
|
|
|
do_action( 'custom_ajax_infinite_scroll' ); |
|
689
|
|
|
die( '0' ); |
|
|
|
|
|
|
690
|
|
|
} |
|
691
|
|
|
|
|
692
|
|
|
/** |
|
693
|
|
|
* Alias for renamed class method. |
|
694
|
|
|
* |
|
695
|
|
|
* Previously, JS settings object was unnecessarily output in the document head. |
|
696
|
|
|
* When the hook was changed, the method name no longer made sense. |
|
697
|
|
|
*/ |
|
698
|
|
|
function action_wp_head() { |
|
699
|
|
|
$this->action_wp_footer_settings(); |
|
700
|
|
|
} |
|
701
|
|
|
|
|
702
|
|
|
/** |
|
703
|
|
|
* Prints the relevant infinite scroll settings in JS. |
|
704
|
|
|
* |
|
705
|
|
|
* @global $wp_rewrite |
|
706
|
|
|
* @uses self::get_settings, esc_js, esc_url_raw, self::has_wrapper, __, apply_filters, do_action, self::get_query_vars |
|
707
|
|
|
* @action wp_footer |
|
708
|
|
|
* @return string |
|
709
|
|
|
*/ |
|
710
|
|
|
function action_wp_footer_settings() { |
|
711
|
|
|
global $wp_rewrite; |
|
712
|
|
|
global $currentday; |
|
713
|
|
|
|
|
714
|
|
|
// Default click handle text |
|
715
|
|
|
$click_handle_text = __( 'Older posts', 'jetpack' ); |
|
716
|
|
|
|
|
717
|
|
|
// If a single CPT is displayed, use its plural name instead of "posts" |
|
718
|
|
|
// Could be empty (posts) or an array of multiple post types. |
|
719
|
|
|
// In the latter two cases cases, the default text is used, leaving the `infinite_scroll_js_settings` filter for further customization. |
|
720
|
|
|
$post_type = self::wp_query()->get( 'post_type' ); |
|
721
|
|
|
if ( is_string( $post_type ) && ! empty( $post_type ) ) { |
|
722
|
|
|
$post_type = get_post_type_object( $post_type ); |
|
723
|
|
|
|
|
724
|
|
|
if ( is_object( $post_type ) && ! is_wp_error( $post_type ) ) { |
|
725
|
|
|
if ( isset( $post_type->labels->name ) ) { |
|
726
|
|
|
$cpt_text = $post_type->labels->name; |
|
727
|
|
|
} elseif ( isset( $post_type->label ) ) { |
|
728
|
|
|
$cpt_text = $post_type->label; |
|
729
|
|
|
} |
|
730
|
|
|
|
|
731
|
|
|
if ( isset( $cpt_text ) ) { |
|
732
|
|
|
$click_handle_text = sprintf( __( 'Older %s', 'jetpack' ), $cpt_text ); |
|
733
|
|
|
unset( $cpt_text ); |
|
734
|
|
|
} |
|
735
|
|
|
} |
|
736
|
|
|
} |
|
737
|
|
|
unset( $post_type ); |
|
738
|
|
|
|
|
739
|
|
|
// Base JS settings |
|
740
|
|
|
$js_settings = array( |
|
741
|
|
|
'id' => self::get_settings()->container, |
|
742
|
|
|
'ajaxurl' => esc_url_raw( self::ajax_url() ), |
|
743
|
|
|
'type' => esc_js( self::get_settings()->type ), |
|
744
|
|
|
'wrapper' => self::has_wrapper(), |
|
745
|
|
|
'wrapper_class' => is_string( self::get_settings()->wrapper ) ? esc_js( self::get_settings()->wrapper ) : 'infinite-wrap', |
|
746
|
|
|
'footer' => is_string( self::get_settings()->footer ) ? esc_js( self::get_settings()->footer ) : self::get_settings()->footer, |
|
747
|
|
|
'click_handle' => esc_js( self::get_settings()->click_handle ), |
|
748
|
|
|
'text' => esc_js( $click_handle_text ), |
|
749
|
|
|
'totop' => esc_js( __( 'Scroll back to top', 'jetpack' ) ), |
|
750
|
|
|
'currentday' => $currentday, |
|
751
|
|
|
'order' => 'DESC', |
|
752
|
|
|
'scripts' => array(), |
|
753
|
|
|
'styles' => array(), |
|
754
|
|
|
'google_analytics' => false, |
|
755
|
|
|
'offset' => self::wp_query()->get( 'paged' ), |
|
756
|
|
|
'history' => array( |
|
757
|
|
|
'host' => preg_replace( '#^http(s)?://#i', '', untrailingslashit( get_option( 'home' ) ) ), |
|
758
|
|
|
'path' => self::get_request_path(), |
|
759
|
|
|
'use_trailing_slashes' => $wp_rewrite->use_trailing_slashes, |
|
760
|
|
|
'parameters' => self::get_request_parameters(), |
|
761
|
|
|
), |
|
762
|
|
|
'query_args' => self::get_query_vars(), |
|
763
|
|
|
'last_post_date' => self::get_last_post_date(), |
|
764
|
|
|
); |
|
765
|
|
|
|
|
766
|
|
|
// Optional order param |
|
767
|
|
|
if ( isset( $_REQUEST['order'] ) ) { |
|
768
|
|
|
$order = strtoupper( $_REQUEST['order'] ); |
|
769
|
|
|
|
|
770
|
|
|
if ( in_array( $order, array( 'ASC', 'DESC' ) ) ) |
|
771
|
|
|
$js_settings['order'] = $order; |
|
772
|
|
|
} |
|
773
|
|
|
|
|
774
|
|
|
/** |
|
775
|
|
|
* Filter the Infinite Scroll JS settings outputted in the head. |
|
776
|
|
|
* |
|
777
|
|
|
* @module infinite-scroll |
|
778
|
|
|
* |
|
779
|
|
|
* @since 2.0.0 |
|
780
|
|
|
* |
|
781
|
|
|
* @param array $js_settings Infinite Scroll JS settings. |
|
782
|
|
|
*/ |
|
783
|
|
|
$js_settings = apply_filters( 'infinite_scroll_js_settings', $js_settings ); |
|
784
|
|
|
|
|
785
|
|
|
/** |
|
786
|
|
|
* Fires before Infinite Scroll outputs inline JavaScript in the head. |
|
787
|
|
|
* |
|
788
|
|
|
* @module infinite-scroll |
|
789
|
|
|
* |
|
790
|
|
|
* @since 2.0.0 |
|
791
|
|
|
*/ |
|
792
|
|
|
do_action( 'infinite_scroll_wp_head' ); |
|
793
|
|
|
|
|
794
|
|
|
?> |
|
795
|
|
|
<script type="text/javascript"> |
|
796
|
|
|
//<![CDATA[ |
|
797
|
|
|
var infiniteScroll = <?php echo json_encode( array( 'settings' => $js_settings ) ); ?>; |
|
798
|
|
|
//]]> |
|
799
|
|
|
</script> |
|
800
|
|
|
<?php |
|
801
|
|
|
} |
|
802
|
|
|
|
|
803
|
|
|
/** |
|
804
|
|
|
* Build path data for current request. |
|
805
|
|
|
* Used for Google Analytics and pushState history tracking. |
|
806
|
|
|
* |
|
807
|
|
|
* @global $wp_rewrite |
|
808
|
|
|
* @global $wp |
|
809
|
|
|
* @uses user_trailingslashit, sanitize_text_field, add_query_arg |
|
810
|
|
|
* @return string|bool |
|
811
|
|
|
*/ |
|
812
|
|
|
private function get_request_path() { |
|
813
|
|
|
global $wp_rewrite; |
|
814
|
|
|
|
|
815
|
|
|
if ( $wp_rewrite->using_permalinks() ) { |
|
816
|
|
|
global $wp; |
|
817
|
|
|
|
|
818
|
|
|
// If called too early, bail |
|
819
|
|
|
if ( ! isset( $wp->request ) ) |
|
820
|
|
|
return false; |
|
821
|
|
|
|
|
822
|
|
|
// Determine path for paginated version of current request |
|
823
|
|
|
if ( false != preg_match( '#' . $wp_rewrite->pagination_base . '/\d+/?$#i', $wp->request ) ) |
|
|
|
|
|
|
824
|
|
|
$path = preg_replace( '#' . $wp_rewrite->pagination_base . '/\d+$#i', $wp_rewrite->pagination_base . '/%d', $wp->request ); |
|
825
|
|
|
else |
|
826
|
|
|
$path = $wp->request . '/' . $wp_rewrite->pagination_base . '/%d'; |
|
827
|
|
|
|
|
828
|
|
|
// Slashes everywhere we need them |
|
829
|
|
|
if ( 0 !== strpos( $path, '/' ) ) |
|
830
|
|
|
$path = '/' . $path; |
|
831
|
|
|
|
|
832
|
|
|
$path = user_trailingslashit( $path ); |
|
833
|
|
|
} else { |
|
834
|
|
|
// Clean up raw $_REQUEST input |
|
835
|
|
|
$path = array_map( 'sanitize_text_field', $_REQUEST ); |
|
836
|
|
|
$path = array_filter( $path ); |
|
837
|
|
|
|
|
838
|
|
|
$path['paged'] = '%d'; |
|
839
|
|
|
|
|
840
|
|
|
$path = add_query_arg( $path, '/' ); |
|
841
|
|
|
} |
|
842
|
|
|
|
|
843
|
|
|
return empty( $path ) ? false : $path; |
|
844
|
|
|
} |
|
845
|
|
|
|
|
846
|
|
|
/** |
|
847
|
|
|
* Return query string for current request, prefixed with '?'. |
|
848
|
|
|
* |
|
849
|
|
|
* @return string |
|
850
|
|
|
*/ |
|
851
|
|
|
private function get_request_parameters() { |
|
852
|
|
|
$uri = $_SERVER[ 'REQUEST_URI' ]; |
|
853
|
|
|
$uri = preg_replace( '/^[^?]*(\?.*$)/', '$1', $uri, 1, $count ); |
|
854
|
|
|
if ( $count != 1 ) |
|
855
|
|
|
return ''; |
|
856
|
|
|
return $uri; |
|
857
|
|
|
} |
|
858
|
|
|
|
|
859
|
|
|
/** |
|
860
|
|
|
* Provide IS with a list of the scripts and stylesheets already present on the page. |
|
861
|
|
|
* Since posts may contain require additional assets that haven't been loaded, this data will be used to track the additional assets. |
|
862
|
|
|
* |
|
863
|
|
|
* @global $wp_scripts, $wp_styles |
|
864
|
|
|
* @action wp_footer |
|
865
|
|
|
* @return string |
|
866
|
|
|
*/ |
|
867
|
|
|
function action_wp_footer() { |
|
868
|
|
|
global $wp_scripts, $wp_styles; |
|
869
|
|
|
|
|
870
|
|
|
$scripts = is_a( $wp_scripts, 'WP_Scripts' ) ? $wp_scripts->done : array(); |
|
871
|
|
|
/** |
|
872
|
|
|
* Filter the list of scripts already present on the page. |
|
873
|
|
|
* |
|
874
|
|
|
* @module infinite-scroll |
|
875
|
|
|
* |
|
876
|
|
|
* @since 2.1.2 |
|
877
|
|
|
* |
|
878
|
|
|
* @param array $scripts Array of scripts present on the page. |
|
879
|
|
|
*/ |
|
880
|
|
|
$scripts = apply_filters( 'infinite_scroll_existing_scripts', $scripts ); |
|
881
|
|
|
|
|
882
|
|
|
$styles = is_a( $wp_styles, 'WP_Styles' ) ? $wp_styles->done : array(); |
|
883
|
|
|
/** |
|
884
|
|
|
* Filter the list of styles already present on the page. |
|
885
|
|
|
* |
|
886
|
|
|
* @module infinite-scroll |
|
887
|
|
|
* |
|
888
|
|
|
* @since 2.1.2 |
|
889
|
|
|
* |
|
890
|
|
|
* @param array $styles Array of styles present on the page. |
|
891
|
|
|
*/ |
|
892
|
|
|
$styles = apply_filters( 'infinite_scroll_existing_stylesheets', $styles ); |
|
893
|
|
|
|
|
894
|
|
|
?><script type="text/javascript"> |
|
895
|
|
|
jQuery.extend( infiniteScroll.settings.scripts, <?php echo json_encode( $scripts ); ?> ); |
|
896
|
|
|
jQuery.extend( infiniteScroll.settings.styles, <?php echo json_encode( $styles ); ?> ); |
|
897
|
|
|
</script><?php |
|
898
|
|
|
} |
|
899
|
|
|
|
|
900
|
|
|
/** |
|
901
|
|
|
* Identify additional scripts required by the latest set of IS posts and provide the necessary data to the IS response handler. |
|
902
|
|
|
* |
|
903
|
|
|
* @global $wp_scripts |
|
904
|
|
|
* @uses sanitize_text_field, add_query_arg |
|
905
|
|
|
* @filter infinite_scroll_results |
|
906
|
|
|
* @return array |
|
907
|
|
|
*/ |
|
908
|
|
|
function filter_infinite_scroll_results( $results, $query_args, $wp_query ) { |
|
909
|
|
|
// Don't bother unless there are posts to display |
|
910
|
|
|
if ( 'success' != $results['type'] ) |
|
911
|
|
|
return $results; |
|
912
|
|
|
|
|
913
|
|
|
// Parse and sanitize the script handles already output |
|
914
|
|
|
$initial_scripts = isset( $_REQUEST['scripts'] ) && is_array( $_REQUEST['scripts'] ) ? array_map( 'sanitize_text_field', $_REQUEST['scripts'] ) : false; |
|
915
|
|
|
|
|
916
|
|
|
if ( is_array( $initial_scripts ) ) { |
|
917
|
|
|
global $wp_scripts; |
|
918
|
|
|
|
|
919
|
|
|
// Identify new scripts needed by the latest set of IS posts |
|
920
|
|
|
$new_scripts = array_diff( $wp_scripts->done, $initial_scripts ); |
|
921
|
|
|
|
|
922
|
|
|
// If new scripts are needed, extract relevant data from $wp_scripts |
|
923
|
|
|
if ( ! empty( $new_scripts ) ) { |
|
924
|
|
|
$results['scripts'] = array(); |
|
925
|
|
|
|
|
926
|
|
|
foreach ( $new_scripts as $handle ) { |
|
927
|
|
|
// Abort if somehow the handle doesn't correspond to a registered script |
|
928
|
|
|
if ( ! isset( $wp_scripts->registered[ $handle ] ) ) |
|
929
|
|
|
continue; |
|
930
|
|
|
|
|
931
|
|
|
// Provide basic script data |
|
932
|
|
|
$script_data = array( |
|
933
|
|
|
'handle' => $handle, |
|
934
|
|
|
'footer' => ( is_array( $wp_scripts->in_footer ) && in_array( $handle, $wp_scripts->in_footer ) ), |
|
935
|
|
|
'extra_data' => $wp_scripts->print_extra_script( $handle, false ) |
|
936
|
|
|
); |
|
937
|
|
|
|
|
938
|
|
|
// Base source |
|
939
|
|
|
$src = $wp_scripts->registered[ $handle ]->src; |
|
940
|
|
|
|
|
941
|
|
|
// Take base_url into account |
|
942
|
|
|
if ( strpos( $src, 'http' ) !== 0 ) |
|
943
|
|
|
$src = $wp_scripts->base_url . $src; |
|
944
|
|
|
|
|
945
|
|
|
// Version and additional arguments |
|
946
|
|
View Code Duplication |
if ( null === $wp_scripts->registered[ $handle ]->ver ) |
|
947
|
|
|
$ver = ''; |
|
948
|
|
|
else |
|
949
|
|
|
$ver = $wp_scripts->registered[ $handle ]->ver ? $wp_scripts->registered[ $handle ]->ver : $wp_scripts->default_version; |
|
950
|
|
|
|
|
951
|
|
View Code Duplication |
if ( isset( $wp_scripts->args[ $handle ] ) ) |
|
952
|
|
|
$ver = $ver ? $ver . '&' . $wp_scripts->args[$handle] : $wp_scripts->args[$handle]; |
|
953
|
|
|
|
|
954
|
|
|
// Full script source with version info |
|
955
|
|
|
$script_data['src'] = add_query_arg( 'ver', $ver, $src ); |
|
956
|
|
|
|
|
957
|
|
|
// Add script to data that will be returned to IS JS |
|
958
|
|
|
array_push( $results['scripts'], $script_data ); |
|
959
|
|
|
} |
|
960
|
|
|
} |
|
961
|
|
|
} |
|
962
|
|
|
|
|
963
|
|
|
// Expose additional script data to filters, but only include in final `$results` array if needed. |
|
964
|
|
|
if ( ! isset( $results['scripts'] ) ) |
|
965
|
|
|
$results['scripts'] = array(); |
|
966
|
|
|
|
|
967
|
|
|
/** |
|
968
|
|
|
* Filter the additional scripts required by the latest set of IS posts. |
|
969
|
|
|
* |
|
970
|
|
|
* @module infinite-scroll |
|
971
|
|
|
* |
|
972
|
|
|
* @since 2.1.2 |
|
973
|
|
|
* |
|
974
|
|
|
* @param array $results['scripts'] Additional scripts required by the latest set of IS posts. |
|
975
|
|
|
* @param array|bool $initial_scripts Set of scripts loaded on each page. |
|
976
|
|
|
* @param array $results Array of Infinite Scroll results. |
|
977
|
|
|
* @param array $query_args Array of Query arguments. |
|
978
|
|
|
* @param WP_Query $wp_query WP Query. |
|
979
|
|
|
*/ |
|
980
|
|
|
$results['scripts'] = apply_filters( |
|
981
|
|
|
'infinite_scroll_additional_scripts', |
|
982
|
|
|
$results['scripts'], |
|
983
|
|
|
$initial_scripts, |
|
984
|
|
|
$results, |
|
985
|
|
|
$query_args, |
|
986
|
|
|
$wp_query |
|
987
|
|
|
); |
|
988
|
|
|
|
|
989
|
|
|
if ( empty( $results['scripts'] ) ) |
|
990
|
|
|
unset( $results['scripts' ] ); |
|
991
|
|
|
|
|
992
|
|
|
// Parse and sanitize the style handles already output |
|
993
|
|
|
$initial_styles = isset( $_REQUEST['styles'] ) && is_array( $_REQUEST['styles'] ) ? array_map( 'sanitize_text_field', $_REQUEST['styles'] ) : false; |
|
994
|
|
|
|
|
995
|
|
|
if ( is_array( $initial_styles ) ) { |
|
996
|
|
|
global $wp_styles; |
|
997
|
|
|
|
|
998
|
|
|
// Identify new styles needed by the latest set of IS posts |
|
999
|
|
|
$new_styles = array_diff( $wp_styles->done, $initial_styles ); |
|
1000
|
|
|
|
|
1001
|
|
|
// If new styles are needed, extract relevant data from $wp_styles |
|
1002
|
|
|
if ( ! empty( $new_styles ) ) { |
|
1003
|
|
|
$results['styles'] = array(); |
|
1004
|
|
|
|
|
1005
|
|
|
foreach ( $new_styles as $handle ) { |
|
1006
|
|
|
// Abort if somehow the handle doesn't correspond to a registered stylesheet |
|
1007
|
|
|
if ( ! isset( $wp_styles->registered[ $handle ] ) ) |
|
1008
|
|
|
continue; |
|
1009
|
|
|
|
|
1010
|
|
|
// Provide basic style data |
|
1011
|
|
|
$style_data = array( |
|
1012
|
|
|
'handle' => $handle, |
|
1013
|
|
|
'media' => 'all' |
|
1014
|
|
|
); |
|
1015
|
|
|
|
|
1016
|
|
|
// Base source |
|
1017
|
|
|
$src = $wp_styles->registered[ $handle ]->src; |
|
1018
|
|
|
|
|
1019
|
|
|
// Take base_url into account |
|
1020
|
|
|
if ( strpos( $src, 'http' ) !== 0 ) |
|
1021
|
|
|
$src = $wp_styles->base_url . $src; |
|
1022
|
|
|
|
|
1023
|
|
|
// Version and additional arguments |
|
1024
|
|
View Code Duplication |
if ( null === $wp_styles->registered[ $handle ]->ver ) |
|
1025
|
|
|
$ver = ''; |
|
1026
|
|
|
else |
|
1027
|
|
|
$ver = $wp_styles->registered[ $handle ]->ver ? $wp_styles->registered[ $handle ]->ver : $wp_styles->default_version; |
|
1028
|
|
|
|
|
1029
|
|
View Code Duplication |
if ( isset($wp_styles->args[ $handle ] ) ) |
|
1030
|
|
|
$ver = $ver ? $ver . '&' . $wp_styles->args[$handle] : $wp_styles->args[$handle]; |
|
1031
|
|
|
|
|
1032
|
|
|
// Full stylesheet source with version info |
|
1033
|
|
|
$style_data['src'] = add_query_arg( 'ver', $ver, $src ); |
|
1034
|
|
|
|
|
1035
|
|
|
// Parse stylesheet's conditional comments if present, converting to logic executable in JS |
|
1036
|
|
|
if ( isset( $wp_styles->registered[ $handle ]->extra['conditional'] ) && $wp_styles->registered[ $handle ]->extra['conditional'] ) { |
|
1037
|
|
|
// First, convert conditional comment operators to standard logical operators. %ver is replaced in JS with the IE version |
|
1038
|
|
|
$style_data['conditional'] = str_replace( array( |
|
1039
|
|
|
'lte', |
|
1040
|
|
|
'lt', |
|
1041
|
|
|
'gte', |
|
1042
|
|
|
'gt' |
|
1043
|
|
|
), array( |
|
1044
|
|
|
'%ver <=', |
|
1045
|
|
|
'%ver <', |
|
1046
|
|
|
'%ver >=', |
|
1047
|
|
|
'%ver >', |
|
1048
|
|
|
), $wp_styles->registered[ $handle ]->extra['conditional'] ); |
|
1049
|
|
|
|
|
1050
|
|
|
// 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(). |
|
1051
|
|
|
$style_data['conditional'] = preg_replace( '#!\s*IE(\s*\d+){0}#i', '1==2', $style_data['conditional'] ); |
|
1052
|
|
|
|
|
1053
|
|
|
// Lastly, remove the IE strings |
|
1054
|
|
|
$style_data['conditional'] = str_replace( 'IE', '', $style_data['conditional'] ); |
|
1055
|
|
|
} |
|
1056
|
|
|
|
|
1057
|
|
|
// Parse requested media context for stylesheet |
|
1058
|
|
View Code Duplication |
if ( isset( $wp_styles->registered[ $handle ]->args ) ) |
|
1059
|
|
|
$style_data['media'] = esc_attr( $wp_styles->registered[ $handle ]->args ); |
|
1060
|
|
|
|
|
1061
|
|
|
// Add stylesheet to data that will be returned to IS JS |
|
1062
|
|
|
array_push( $results['styles'], $style_data ); |
|
1063
|
|
|
} |
|
1064
|
|
|
} |
|
1065
|
|
|
} |
|
1066
|
|
|
|
|
1067
|
|
|
// Expose additional stylesheet data to filters, but only include in final `$results` array if needed. |
|
1068
|
|
|
if ( ! isset( $results['styles'] ) ) |
|
1069
|
|
|
$results['styles'] = array(); |
|
1070
|
|
|
|
|
1071
|
|
|
/** |
|
1072
|
|
|
* Filter the additional styles required by the latest set of IS posts. |
|
1073
|
|
|
* |
|
1074
|
|
|
* @module infinite-scroll |
|
1075
|
|
|
* |
|
1076
|
|
|
* @since 2.1.2 |
|
1077
|
|
|
* |
|
1078
|
|
|
* @param array $results['styles'] Additional styles required by the latest set of IS posts. |
|
1079
|
|
|
* @param array|bool $initial_styles Set of styles 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['styles'] = apply_filters( |
|
1085
|
|
|
'infinite_scroll_additional_stylesheets', |
|
1086
|
|
|
$results['styles'], |
|
1087
|
|
|
$initial_styles, |
|
1088
|
|
|
$results, |
|
1089
|
|
|
$query_args, |
|
1090
|
|
|
$wp_query |
|
1091
|
|
|
); |
|
1092
|
|
|
|
|
1093
|
|
|
if ( empty( $results['styles'] ) ) |
|
1094
|
|
|
unset( $results['styles' ] ); |
|
1095
|
|
|
|
|
1096
|
|
|
// Lastly, return the IS results array |
|
1097
|
|
|
return $results; |
|
1098
|
|
|
} |
|
1099
|
|
|
|
|
1100
|
|
|
/** |
|
1101
|
|
|
* Runs the query and returns the results via JSON. |
|
1102
|
|
|
* Triggered by an AJAX request. |
|
1103
|
|
|
* |
|
1104
|
|
|
* @global $wp_query |
|
1105
|
|
|
* @global $wp_the_query |
|
1106
|
|
|
* @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 |
|
1107
|
|
|
* @return string or null |
|
1108
|
|
|
*/ |
|
1109
|
|
|
function query() { |
|
1110
|
|
|
global $wp_customize; |
|
1111
|
|
|
if ( ! isset( $_REQUEST['page'] ) || ! current_theme_supports( 'infinite-scroll' ) ) |
|
1112
|
|
|
die; |
|
|
|
|
|
|
1113
|
|
|
|
|
1114
|
|
|
$page = (int) $_REQUEST['page']; |
|
1115
|
|
|
|
|
1116
|
|
|
// Sanitize and set $previousday. Expected format: dd.mm.yy |
|
1117
|
|
|
if ( preg_match( '/^\d{2}\.\d{2}\.\d{2}$/', $_REQUEST['currentday'] ) ) { |
|
1118
|
|
|
global $previousday; |
|
1119
|
|
|
$previousday = $_REQUEST['currentday']; |
|
1120
|
|
|
} |
|
1121
|
|
|
|
|
1122
|
|
|
$sticky = get_option( 'sticky_posts' ); |
|
1123
|
|
|
$post__not_in = self::wp_query()->get( 'post__not_in' ); |
|
1124
|
|
|
|
|
1125
|
|
|
//we have to take post__not_in args into consideration here not only sticky posts |
|
1126
|
|
|
if ( true === isset( $_REQUEST['query_args']['post__not_in'] ) ) { |
|
1127
|
|
|
$post__not_in = array_merge( $post__not_in, array_map( 'intval', (array) $_REQUEST['query_args']['post__not_in'] ) ); |
|
1128
|
|
|
} |
|
1129
|
|
|
|
|
1130
|
|
|
if ( ! empty( $post__not_in ) ) |
|
1131
|
|
|
$sticky = array_unique( array_merge( $sticky, $post__not_in ) ); |
|
1132
|
|
|
|
|
1133
|
|
|
$post_status = array( 'publish' ); |
|
1134
|
|
|
if ( current_user_can( 'read_private_posts' ) ) |
|
1135
|
|
|
array_push( $post_status, 'private' ); |
|
1136
|
|
|
|
|
1137
|
|
|
$order = in_array( $_REQUEST['order'], array( 'ASC', 'DESC' ) ) ? $_REQUEST['order'] : 'DESC'; |
|
1138
|
|
|
|
|
1139
|
|
|
$query_args = array_merge( self::wp_query()->query_vars, array( |
|
1140
|
|
|
'paged' => $page, |
|
1141
|
|
|
'post_status' => $post_status, |
|
1142
|
|
|
'posts_per_page' => self::get_settings()->posts_per_page, |
|
1143
|
|
|
'post__not_in' => ( array ) $sticky, |
|
1144
|
|
|
'order' => $order |
|
1145
|
|
|
) ); |
|
1146
|
|
|
|
|
1147
|
|
|
// 4.0 ?s= compatibility, see https://core.trac.wordpress.org/ticket/11330#comment:50 |
|
1148
|
|
|
if ( empty( $query_args['s'] ) && ! isset( self::wp_query()->query['s'] ) ) { |
|
1149
|
|
|
unset( $query_args['s'] ); |
|
1150
|
|
|
} |
|
1151
|
|
|
|
|
1152
|
|
|
// By default, don't query for a specific page of a paged post object. |
|
1153
|
|
|
// This argument can come from merging self::wp_query() into $query_args above. |
|
1154
|
|
|
// Since IS is only used on archives, we should always display the first page of any paged content. |
|
1155
|
|
|
unset( $query_args['page'] ); |
|
1156
|
|
|
|
|
1157
|
|
|
/** |
|
1158
|
|
|
* Filter the array of main query arguments. |
|
1159
|
|
|
* |
|
1160
|
|
|
* @module infinite-scroll |
|
1161
|
|
|
* |
|
1162
|
|
|
* @since 2.0.1 |
|
1163
|
|
|
* |
|
1164
|
|
|
* @param array $query_args Array of Query arguments. |
|
1165
|
|
|
*/ |
|
1166
|
|
|
$query_args = apply_filters( 'infinite_scroll_query_args', $query_args ); |
|
1167
|
|
|
|
|
1168
|
|
|
// Add query filter that checks for posts below the date |
|
1169
|
|
|
add_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 ); |
|
1170
|
|
|
|
|
1171
|
|
|
$GLOBALS['wp_the_query'] = $GLOBALS['wp_query'] = new WP_Query( $query_args ); |
|
1172
|
|
|
|
|
1173
|
|
|
remove_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 ); |
|
1174
|
|
|
|
|
1175
|
|
|
$results = array(); |
|
1176
|
|
|
|
|
1177
|
|
|
if ( have_posts() ) { |
|
1178
|
|
|
// Fire wp_head to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer. |
|
1179
|
|
|
ob_start(); |
|
1180
|
|
|
wp_head(); |
|
1181
|
|
|
while ( ob_get_length() ) { |
|
1182
|
|
|
ob_end_clean(); |
|
1183
|
|
|
} |
|
1184
|
|
|
|
|
1185
|
|
|
$results['type'] = 'success'; |
|
1186
|
|
|
|
|
1187
|
|
|
// First, try theme's specified rendering handler, either specified via `add_theme_support` or by hooking to this action directly. |
|
1188
|
|
|
ob_start(); |
|
1189
|
|
|
/** |
|
1190
|
|
|
* Fires when rendering Infinite Scroll posts. |
|
1191
|
|
|
* |
|
1192
|
|
|
* @module infinite-scroll |
|
1193
|
|
|
* |
|
1194
|
|
|
* @since 2.0.0 |
|
1195
|
|
|
*/ |
|
1196
|
|
|
do_action( 'infinite_scroll_render' ); |
|
1197
|
|
|
$results['html'] = ob_get_clean(); |
|
1198
|
|
|
|
|
1199
|
|
|
// Fall back if a theme doesn't specify a rendering function. Because themes may hook additional functions to the `infinite_scroll_render` action, `has_action()` is ineffective here. |
|
1200
|
|
|
if ( empty( $results['html'] ) ) { |
|
1201
|
|
|
add_action( 'infinite_scroll_render', array( $this, 'render' ) ); |
|
1202
|
|
|
rewind_posts(); |
|
1203
|
|
|
|
|
1204
|
|
|
ob_start(); |
|
1205
|
|
|
/** This action is already documented in modules/infinite-scroll/infinity.php */ |
|
1206
|
|
|
do_action( 'infinite_scroll_render' ); |
|
1207
|
|
|
$results['html'] = ob_get_clean(); |
|
1208
|
|
|
} |
|
1209
|
|
|
|
|
1210
|
|
|
// If primary and fallback rendering methods fail, prevent further IS rendering attempts. Otherwise, wrap the output if requested. |
|
1211
|
|
|
if ( empty( $results['html'] ) ) { |
|
1212
|
|
|
unset( $results['html'] ); |
|
1213
|
|
|
/** |
|
1214
|
|
|
* Fires when Infinite Scoll doesn't render any posts. |
|
1215
|
|
|
* |
|
1216
|
|
|
* @module infinite-scroll |
|
1217
|
|
|
* |
|
1218
|
|
|
* @since 2.0.0 |
|
1219
|
|
|
*/ |
|
1220
|
|
|
do_action( 'infinite_scroll_empty' ); |
|
1221
|
|
|
$results['type'] = 'empty'; |
|
1222
|
|
|
} elseif ( $this->has_wrapper() ) { |
|
1223
|
|
|
$wrapper_classes = is_string( self::get_settings()->wrapper ) ? self::get_settings()->wrapper : 'infinite-wrap'; |
|
1224
|
|
|
$wrapper_classes .= ' infinite-view-' . $page; |
|
1225
|
|
|
$wrapper_classes = trim( $wrapper_classes ); |
|
1226
|
|
|
|
|
1227
|
|
|
$results['html'] = '<div class="' . esc_attr( $wrapper_classes ) . '" id="infinite-view-' . $page . '" data-page-num="' . $page . '">' . $results['html'] . '</div>'; |
|
1228
|
|
|
} |
|
1229
|
|
|
|
|
1230
|
|
|
// Fire wp_footer to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer. |
|
1231
|
|
|
ob_start(); |
|
1232
|
|
|
wp_footer(); |
|
1233
|
|
|
while ( ob_get_length() ) { |
|
1234
|
|
|
ob_end_clean(); |
|
1235
|
|
|
} |
|
1236
|
|
|
|
|
1237
|
|
|
if ( 'success' == $results['type'] ) { |
|
1238
|
|
|
global $currentday; |
|
1239
|
|
|
$results['lastbatch'] = self::is_last_batch(); |
|
1240
|
|
|
$results['currentday'] = $currentday; |
|
1241
|
|
|
} |
|
1242
|
|
|
|
|
1243
|
|
|
// Loop through posts to capture sharing data for new posts loaded via Infinite Scroll |
|
1244
|
|
|
if ( 'success' == $results['type'] && function_exists( 'sharing_register_post_for_share_counts' ) ) { |
|
1245
|
|
|
global $jetpack_sharing_counts; |
|
1246
|
|
|
|
|
1247
|
|
|
while( have_posts() ) { |
|
1248
|
|
|
the_post(); |
|
1249
|
|
|
|
|
1250
|
|
|
sharing_register_post_for_share_counts( get_the_ID() ); |
|
1251
|
|
|
} |
|
1252
|
|
|
|
|
1253
|
|
|
$results['postflair'] = array_flip( $jetpack_sharing_counts ); |
|
1254
|
|
|
} |
|
1255
|
|
|
} else { |
|
1256
|
|
|
/** This action is already documented in modules/infinite-scroll/infinity.php */ |
|
1257
|
|
|
do_action( 'infinite_scroll_empty' ); |
|
1258
|
|
|
$results['type'] = 'empty'; |
|
1259
|
|
|
} |
|
1260
|
|
|
|
|
1261
|
|
|
if ( is_customize_preview() ) { |
|
1262
|
|
|
$wp_customize->remove_preview_signature(); |
|
1263
|
|
|
} |
|
1264
|
|
|
|
|
1265
|
|
|
wp_send_json( |
|
1266
|
|
|
/** |
|
1267
|
|
|
* Filter the Infinite Scroll results. |
|
1268
|
|
|
* |
|
1269
|
|
|
* @module infinite-scroll |
|
1270
|
|
|
* |
|
1271
|
|
|
* @since 2.0.0 |
|
1272
|
|
|
* |
|
1273
|
|
|
* @param array $results Array of Infinite Scroll results. |
|
1274
|
|
|
* @param array $query_args Array of main query arguments. |
|
1275
|
|
|
* @param WP_Query $wp_query WP Query. |
|
1276
|
|
|
*/ |
|
1277
|
|
|
apply_filters( 'infinite_scroll_results', $results, $query_args, self::wp_query() ) |
|
1278
|
|
|
); |
|
1279
|
|
|
} |
|
1280
|
|
|
|
|
1281
|
|
|
/** |
|
1282
|
|
|
* Update the $allowed_vars array with the standard WP public and private |
|
1283
|
|
|
* query vars, as well as taxonomy vars |
|
1284
|
|
|
* |
|
1285
|
|
|
* @global $wp |
|
1286
|
|
|
* @param array $allowed_vars |
|
1287
|
|
|
* @filter infinite_scroll_allowed_vars |
|
1288
|
|
|
* @return array |
|
1289
|
|
|
*/ |
|
1290
|
|
|
function allowed_query_vars( $allowed_vars ) { |
|
1291
|
|
|
global $wp; |
|
1292
|
|
|
|
|
1293
|
|
|
$allowed_vars += $wp->public_query_vars; |
|
1294
|
|
|
$allowed_vars += $wp->private_query_vars; |
|
1295
|
|
|
$allowed_vars += $this->get_taxonomy_vars(); |
|
1296
|
|
|
|
|
1297
|
|
|
foreach ( array_keys( $allowed_vars, 'paged' ) as $key ) { |
|
1298
|
|
|
unset( $allowed_vars[ $key ] ); |
|
1299
|
|
|
} |
|
1300
|
|
|
|
|
1301
|
|
|
return array_unique( $allowed_vars ); |
|
1302
|
|
|
} |
|
1303
|
|
|
|
|
1304
|
|
|
/** |
|
1305
|
|
|
* Returns an array of stock and custom taxonomy query vars |
|
1306
|
|
|
* |
|
1307
|
|
|
* @global $wp_taxonomies |
|
1308
|
|
|
* @return array |
|
1309
|
|
|
*/ |
|
1310
|
|
|
function get_taxonomy_vars() { |
|
1311
|
|
|
global $wp_taxonomies; |
|
1312
|
|
|
|
|
1313
|
|
|
$taxonomy_vars = array(); |
|
1314
|
|
|
foreach ( $wp_taxonomies as $taxonomy => $t ) { |
|
1315
|
|
|
if ( $t->query_var ) |
|
1316
|
|
|
$taxonomy_vars[] = $t->query_var; |
|
1317
|
|
|
} |
|
1318
|
|
|
|
|
1319
|
|
|
// still needed? |
|
1320
|
|
|
$taxonomy_vars[] = 'tag_id'; |
|
1321
|
|
|
|
|
1322
|
|
|
return $taxonomy_vars; |
|
1323
|
|
|
} |
|
1324
|
|
|
|
|
1325
|
|
|
/** |
|
1326
|
|
|
* Update the $query_args array with the parameters provided via AJAX/GET. |
|
1327
|
|
|
* |
|
1328
|
|
|
* @param array $query_args |
|
1329
|
|
|
* @filter infinite_scroll_query_args |
|
1330
|
|
|
* @return array |
|
1331
|
|
|
*/ |
|
1332
|
|
|
function inject_query_args( $query_args ) { |
|
1333
|
|
|
/** |
|
1334
|
|
|
* Filter the array of allowed Infinite Scroll query arguments. |
|
1335
|
|
|
* |
|
1336
|
|
|
* @module infinite-scroll |
|
1337
|
|
|
* |
|
1338
|
|
|
* @since 2.6.0 |
|
1339
|
|
|
* |
|
1340
|
|
|
* @param array $args Array of allowed Infinite Scroll query arguments. |
|
1341
|
|
|
* @param array $query_args Array of query arguments. |
|
1342
|
|
|
*/ |
|
1343
|
|
|
$allowed_vars = apply_filters( 'infinite_scroll_allowed_vars', array(), $query_args ); |
|
1344
|
|
|
|
|
1345
|
|
|
$query_args = array_merge( $query_args, array( |
|
1346
|
|
|
'suppress_filters' => false, |
|
1347
|
|
|
) ); |
|
1348
|
|
|
|
|
1349
|
|
|
if ( is_array( $_REQUEST[ 'query_args' ] ) ) { |
|
1350
|
|
|
foreach ( $_REQUEST[ 'query_args' ] as $var => $value ) { |
|
1351
|
|
|
if ( in_array( $var, $allowed_vars ) && ! empty( $value ) ) |
|
1352
|
|
|
$query_args[ $var ] = $value; |
|
1353
|
|
|
} |
|
1354
|
|
|
} |
|
1355
|
|
|
|
|
1356
|
|
|
return $query_args; |
|
1357
|
|
|
} |
|
1358
|
|
|
|
|
1359
|
|
|
/** |
|
1360
|
|
|
* Rendering fallback used when themes don't specify their own handler. |
|
1361
|
|
|
* |
|
1362
|
|
|
* @uses have_posts, the_post, get_template_part, get_post_format |
|
1363
|
|
|
* @action infinite_scroll_render |
|
1364
|
|
|
* @return string |
|
1365
|
|
|
*/ |
|
1366
|
|
|
function render() { |
|
1367
|
|
|
while ( have_posts() ) { |
|
1368
|
|
|
the_post(); |
|
1369
|
|
|
|
|
1370
|
|
|
get_template_part( 'content', get_post_format() ); |
|
1371
|
|
|
} |
|
1372
|
|
|
} |
|
1373
|
|
|
|
|
1374
|
|
|
/** |
|
1375
|
|
|
* Allow plugins to filter what archives Infinite Scroll supports |
|
1376
|
|
|
* |
|
1377
|
|
|
* @uses current_theme_supports, is_home, is_archive, apply_filters, self::get_settings |
|
1378
|
|
|
* @return bool |
|
1379
|
|
|
*/ |
|
1380
|
|
|
public static function archive_supports_infinity() { |
|
1381
|
|
|
$supported = current_theme_supports( 'infinite-scroll' ) && ( is_home() || is_archive() || is_search() ); |
|
1382
|
|
|
|
|
1383
|
|
|
// Disable when previewing a non-active theme in the customizer |
|
1384
|
|
|
if ( is_customize_preview() && ! $GLOBALS['wp_customize']->is_theme_active() ) { |
|
1385
|
|
|
return false; |
|
1386
|
|
|
} |
|
1387
|
|
|
|
|
1388
|
|
|
/** |
|
1389
|
|
|
* Allow plugins to filter what archives Infinite Scroll supports. |
|
1390
|
|
|
* |
|
1391
|
|
|
* @module infinite-scroll |
|
1392
|
|
|
* |
|
1393
|
|
|
* @since 2.0.0 |
|
1394
|
|
|
* |
|
1395
|
|
|
* @param bool $supported Does the Archive page support Infinite Scroll. |
|
1396
|
|
|
* @param object self::get_settings() IS settings provided by theme. |
|
1397
|
|
|
*/ |
|
1398
|
|
|
return (bool) apply_filters( 'infinite_scroll_archive_supported', $supported, self::get_settings() ); |
|
1399
|
|
|
} |
|
1400
|
|
|
|
|
1401
|
|
|
/** |
|
1402
|
|
|
* The Infinite Blog Footer |
|
1403
|
|
|
* |
|
1404
|
|
|
* @uses self::get_settings, self::archive_supports_infinity, self::default_footer |
|
1405
|
|
|
* @return string or null |
|
1406
|
|
|
*/ |
|
1407
|
|
|
function footer() { |
|
1408
|
|
|
// Bail if theme requested footer not show |
|
1409
|
|
|
if ( false == self::get_settings()->footer ) |
|
1410
|
|
|
return; |
|
1411
|
|
|
|
|
1412
|
|
|
// We only need the new footer for the 'scroll' type |
|
1413
|
|
|
if ( 'scroll' != self::get_settings()->type || ! self::archive_supports_infinity() ) |
|
1414
|
|
|
return; |
|
1415
|
|
|
|
|
1416
|
|
|
// Display a footer, either user-specified or a default |
|
1417
|
|
|
if ( false !== self::get_settings()->footer_callback && is_callable( self::get_settings()->footer_callback ) ) |
|
1418
|
|
|
call_user_func( self::get_settings()->footer_callback, self::get_settings() ); |
|
1419
|
|
|
else |
|
1420
|
|
|
self::default_footer(); |
|
1421
|
|
|
} |
|
1422
|
|
|
|
|
1423
|
|
|
/** |
|
1424
|
|
|
* Render default IS footer |
|
1425
|
|
|
* |
|
1426
|
|
|
* @uses __, wp_get_theme, get_current_theme, apply_filters, home_url, esc_attr, get_bloginfo, bloginfo |
|
1427
|
|
|
* @return string |
|
1428
|
|
|
*/ |
|
1429
|
|
|
private function default_footer() { |
|
1430
|
|
|
$credits = sprintf( |
|
1431
|
|
|
'<a href="http://wordpress.org/" target="_blank" rel="generator">%1$s</a> ', |
|
1432
|
|
|
__( 'Proudly powered by WordPress', 'jetpack' ) |
|
1433
|
|
|
); |
|
1434
|
|
|
$credits .= sprintf( |
|
1435
|
|
|
__( 'Theme: %1$s.', 'jetpack' ), |
|
1436
|
|
|
function_exists( 'wp_get_theme' ) ? wp_get_theme()->Name : get_current_theme() |
|
1437
|
|
|
); |
|
1438
|
|
|
/** |
|
1439
|
|
|
* Filter Infinite Scroll's credit text. |
|
1440
|
|
|
* |
|
1441
|
|
|
* @module infinite-scroll |
|
1442
|
|
|
* |
|
1443
|
|
|
* @since 2.0.0 |
|
1444
|
|
|
* |
|
1445
|
|
|
* @param string $credits Infinite Scroll credits. |
|
1446
|
|
|
*/ |
|
1447
|
|
|
$credits = apply_filters( 'infinite_scroll_credit', $credits ); |
|
1448
|
|
|
|
|
1449
|
|
|
?> |
|
1450
|
|
|
<div id="infinite-footer"> |
|
1451
|
|
|
<div class="container"> |
|
1452
|
|
|
<div class="blog-info"> |
|
1453
|
|
|
<a id="infinity-blog-title" href="<?php echo home_url( '/' ); ?>" target="_blank" rel="home"> |
|
1454
|
|
|
<?php bloginfo( 'name' ); ?> |
|
1455
|
|
|
</a> |
|
1456
|
|
|
</div> |
|
1457
|
|
|
<div class="blog-credits"> |
|
1458
|
|
|
<?php echo $credits; ?> |
|
1459
|
|
|
</div> |
|
1460
|
|
|
</div> |
|
1461
|
|
|
</div><!-- #infinite-footer --> |
|
1462
|
|
|
<?php |
|
1463
|
|
|
} |
|
1464
|
|
|
|
|
1465
|
|
|
/** |
|
1466
|
|
|
* Ensure that IS doesn't interfere with Grunion by stripping IS query arguments from the Grunion redirect URL. |
|
1467
|
|
|
* When arguments are present, Grunion redirects to the IS AJAX endpoint. |
|
1468
|
|
|
* |
|
1469
|
|
|
* @param string $url |
|
1470
|
|
|
* @uses remove_query_arg |
|
1471
|
|
|
* @filter grunion_contact_form_redirect_url |
|
1472
|
|
|
* @return string |
|
1473
|
|
|
*/ |
|
1474
|
|
|
public function filter_grunion_redirect_url( $url ) { |
|
1475
|
|
|
// Remove IS query args, if present |
|
1476
|
|
|
if ( false !== strpos( $url, 'infinity=scrolling' ) ) { |
|
1477
|
|
|
$url = remove_query_arg( array( |
|
1478
|
|
|
'infinity', |
|
1479
|
|
|
'action', |
|
1480
|
|
|
'page', |
|
1481
|
|
|
'order', |
|
1482
|
|
|
'scripts', |
|
1483
|
|
|
'styles' |
|
1484
|
|
|
), $url ); |
|
1485
|
|
|
} |
|
1486
|
|
|
|
|
1487
|
|
|
return $url; |
|
1488
|
|
|
} |
|
1489
|
|
|
}; |
|
1490
|
|
|
|
|
1491
|
|
|
/** |
|
1492
|
|
|
* Initialize The_Neverending_Home_Page |
|
1493
|
|
|
*/ |
|
1494
|
|
|
function the_neverending_home_page_init() { |
|
1495
|
|
|
if ( ! current_theme_supports( 'infinite-scroll' ) ) |
|
1496
|
|
|
return; |
|
1497
|
|
|
|
|
1498
|
|
|
new The_Neverending_Home_Page; |
|
1499
|
|
|
} |
|
1500
|
|
|
add_action( 'init', 'the_neverending_home_page_init', 20 ); |
|
1501
|
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|
|
|
1502
|
|
|
/** |
|
1503
|
|
|
* Check whether the current theme is infinite-scroll aware. |
|
1504
|
|
|
* If so, include the files which add theme support. |
|
1505
|
|
|
*/ |
|
1506
|
|
|
function the_neverending_home_page_theme_support() { |
|
1507
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|
|
$theme_name = get_stylesheet(); |
|
1508
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|
|
|
|
1509
|
|
|
/** |
|
1510
|
|
|
* Filter the path to the Infinite Scroll compatibility file. |
|
1511
|
|
|
* |
|
1512
|
|
|
* @module infinite-scroll |
|
1513
|
|
|
* |
|
1514
|
|
|
* @since 2.0.0 |
|
1515
|
|
|
* |
|
1516
|
|
|
* @param string $str IS compatibility file path. |
|
1517
|
|
|
* @param string $theme_name Theme name. |
|
1518
|
|
|
*/ |
|
1519
|
|
|
$customization_file = apply_filters( 'infinite_scroll_customization_file', dirname( __FILE__ ) . "/themes/{$theme_name}.php", $theme_name ); |
|
1520
|
|
|
|
|
1521
|
|
|
if ( is_readable( $customization_file ) ) |
|
1522
|
|
|
require_once( $customization_file ); |
|
1523
|
|
|
} |
|
1524
|
|
|
add_action( 'after_setup_theme', 'the_neverending_home_page_theme_support', 5 ); |
|
1525
|
|
|
|
|
1526
|
|
|
/** |
|
1527
|
|
|
* Early accommodation of the Infinite Scroll AJAX request |
|
1528
|
|
|
*/ |
|
1529
|
|
|
if ( The_Neverending_Home_Page::got_infinity() ) { |
|
1530
|
|
|
/** |
|
1531
|
|
|
* If we're sure this is an AJAX request (i.e. the HTTP_X_REQUESTED_WITH header says so), |
|
1532
|
|
|
* indicate it as early as possible for actions like init |
|
1533
|
|
|
*/ |
|
1534
|
|
|
if ( ! defined( 'DOING_AJAX' ) && |
|
1535
|
|
|
isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) && |
|
1536
|
|
|
strtoupper( $_SERVER['HTTP_X_REQUESTED_WITH'] ) == 'XMLHTTPREQUEST' |
|
1537
|
|
|
) { |
|
1538
|
|
|
define( 'DOING_AJAX', true ); |
|
1539
|
|
|
} |
|
1540
|
|
|
|
|
1541
|
|
|
// Don't load the admin bar when doing the AJAX response. |
|
1542
|
|
|
show_admin_bar( false ); |
|
1543
|
|
|
} |
|
1544
|
|
|
|
Automattic /
jetpack
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Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.