1544 lines
49 KiB
PHP
1544 lines
49 KiB
PHP
<?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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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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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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* 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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* 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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* Is this guaranteed to be the last batch of posts?
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*/
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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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/**
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* The more tag will be ignored by default if the blog page isn't our homepage.
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* Let's force the $more global to false.
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*/
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function preserve_more_tag( $array ) {
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global $more;
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if ( self::got_infinity() )
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$more = 0; //0 = show content up to the more tag. Add more link.
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return $array;
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}
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/**
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* Add a checkbox field to Settings > Reading
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* for enabling infinite scroll.
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*
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* Only show if the current theme supports infinity.
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*
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* @uses current_theme_supports, add_settings_field, __, register_setting
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* @action admin_init
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* @return null
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*/
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function settings_api_init() {
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if ( ! current_theme_supports( 'infinite-scroll' ) )
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return;
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// Add the setting field [infinite_scroll] and place it in Settings > Reading
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add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . __( 'To infinity and beyond', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' );
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register_setting( 'reading', self::$option_name_enabled, 'esc_attr' );
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}
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/**
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* HTML code to display a checkbox true/false option
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* for the infinite_scroll setting.
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*/
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function infinite_setting_html() {
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$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>';
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// If the blog has footer widgets, show a notice instead of the checkbox
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if ( self::get_settings()->footer_widgets || 'click' == self::get_settings()->requested_type ) {
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echo '<label>' . $notice . '</label>';
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} else {
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echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$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>';
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}
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}
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/**
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* Does the legwork to determine whether the feature is enabled.
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*
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* @uses current_theme_supports, self::archive_supports_infinity, self::get_settings, add_filter, wp_enqueue_script, plugins_url, wp_enqueue_style, add_action
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* @action template_redirect
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* @return null
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*/
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function action_template_redirect() {
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// Check that we support infinite scroll, and are on the home page.
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if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() )
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return;
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$id = self::get_settings()->container;
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// Check that we have an id.
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if ( empty( $id ) )
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return;
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// Make sure there are enough posts for IS
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if ( 'click' == self::get_settings()->type && self::is_last_batch() )
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return;
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// Add a class to the body.
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add_filter( 'body_class', array( $this, 'body_class' ) );
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// Add our scripts.
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wp_enqueue_script( 'the-neverending-homepage', plugins_url( 'infinity.js', __FILE__ ), array( 'jquery' ), '4.0.0', true );
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// Add our default styles.
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wp_enqueue_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20140422' );
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add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_spinner_scripts' ) );
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add_action( 'wp_footer', array( $this, 'action_wp_footer_settings' ), 2 );
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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
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add_filter( 'infinite_scroll_results', array( $this, 'filter_infinite_scroll_results' ), 10, 3 );
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}
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/**
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* Enqueue spinner scripts.
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*/
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function enqueue_spinner_scripts() {
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wp_enqueue_script( 'jquery.spin' );
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}
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/**
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* Adds an 'infinite-scroll' class to the body.
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*/
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function body_class( $classes ) {
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// Do not add infinity-scroll class if disabled through the Reading page
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$disabled = '' === get_option( self::$option_name_enabled ) ? true : false;
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if ( ! $disabled || 'click' == self::get_settings()->type ) {
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$classes[] = 'infinite-scroll';
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if ( 'scroll' == self::get_settings()->type )
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$classes[] = 'neverending';
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}
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return $classes;
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}
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/**
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* In case IS is activated on search page, we have to exclude initially loaded posts which match the keyword by title, not the content as they are displayed before content-matching ones
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*
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* @uses self::wp_query
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* @uses self::get_last_post_date
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* @uses self::has_only_title_matching_posts
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* @return array
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*/
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function get_excluded_posts() {
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$excluded_posts = array();
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//loop through posts returned by wp_query call
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foreach( self::wp_query()->get_posts() as $post ) {
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$orderby = isset( self::wp_query()->query_vars['orderby'] ) ? self::wp_query()->query_vars['orderby'] : '';
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$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false );
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if ( 'modified' === $orderby || false === $post_date ) {
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$post_date = $post->post_modified;
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}
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//in case all posts initially displayed match the keyword by title we add em all to excluded posts array
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//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
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if ( self::has_only_title_matching_posts() || $post_date <= self::get_last_post_date() ) {
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array_push( $excluded_posts, $post->ID );
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}
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}
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return $excluded_posts;
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}
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/**
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* In case IS is active on search, we have to exclude posts matched by title rather than by post_content in order to prevent dupes on next pages
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*
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* @uses self::wp_query
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* @uses self::get_excluded_posts
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* @return array
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*/
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function get_query_vars() {
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$query_vars = self::wp_query()->query_vars;
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//applies to search page only
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if ( true === self::wp_query()->is_search() ) {
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//set post__not_in array in query_vars in case it does not exists
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if ( false === isset( $query_vars['post__not_in'] ) ) {
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$query_vars['post__not_in'] = array();
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}
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//get excluded posts
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$excluded = self::get_excluded_posts();
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//merge them with other post__not_in posts (eg.: sticky posts)
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$query_vars['post__not_in'] = array_merge( $query_vars['post__not_in'], $excluded );
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}
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return $query_vars;
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}
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/**
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* This function checks whether all posts returned by initial wp_query match the keyword by title
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* The code used in this function is borrowed from WP_Query class where it is used to construct like conditions for keywords
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*
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* @uses self::wp_query
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* @return bool
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*/
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function has_only_title_matching_posts() {
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//apply following logic for search page results only
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if ( false === self::wp_query()->is_search() ) {
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return false;
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}
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//grab the last posts in the stack as if the last one is title-matching the rest is title-matching as well
|
|
$post = end( self::wp_query()->posts );
|
|
|
|
//code inspired by WP_Query class
|
|
if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', self::wp_query()->get( 's' ), $matches ) ) {
|
|
$search_terms = self::wp_query()->query_vars['search_terms'];
|
|
// if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence
|
|
if ( empty( $search_terms ) || count( $search_terms ) > 9 ) {
|
|
$search_terms = array( self::wp_query()->get( 's' ) );
|
|
}
|
|
} else {
|
|
$search_terms = array( self::wp_query()->get( 's' ) );
|
|
}
|
|
|
|
//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
|
|
$term = current( $search_terms );
|
|
if ( ! empty( $term ) && false !== strpos( $post->post_title, $term ) ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Grab the timestamp for the initial query's last post.
|
|
*
|
|
* This takes into account the query's 'orderby' parameter and returns
|
|
* false if the posts are not ordered by date.
|
|
*
|
|
* @uses self::got_infinity
|
|
* @uses self::has_only_title_matching_posts
|
|
* @uses self::wp_query
|
|
* @return string 'Y-m-d H:i:s' or false
|
|
*/
|
|
function get_last_post_date() {
|
|
if ( self::got_infinity() )
|
|
return;
|
|
|
|
if ( ! self::wp_query()->have_posts() ) {
|
|
return null;
|
|
}
|
|
|
|
//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
|
|
if ( true === self::has_only_title_matching_posts() ) {
|
|
return false;
|
|
}
|
|
|
|
$post = end( self::wp_query()->posts );
|
|
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ?
|
|
self::wp_query()->query_vars['orderby'] : '';
|
|
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false );
|
|
switch ( $orderby ) {
|
|
case 'modified':
|
|
return $post->post_modified;
|
|
case 'date':
|
|
case '':
|
|
return $post_date;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the appropriate `wp_posts` table field for a given query's
|
|
* 'orderby' parameter, if applicable.
|
|
*
|
|
* @param optional object $query
|
|
* @uses self::wp_query
|
|
* @return string or false
|
|
*/
|
|
function get_query_sort_field( $query = null ) {
|
|
if ( empty( $query ) )
|
|
$query = self::wp_query();
|
|
|
|
$orderby = isset( $query->query_vars['orderby'] ) ? $query->query_vars['orderby'] : '';
|
|
|
|
switch ( $orderby ) {
|
|
case 'modified':
|
|
return 'post_modified';
|
|
case 'date':
|
|
case '':
|
|
return 'post_date';
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create a where clause that will make sure post queries
|
|
* will always return results prior to (descending sort)
|
|
* or before (ascending sort) the last post date.
|
|
*
|
|
* @global $wpdb
|
|
* @param string $where
|
|
* @param object $query
|
|
* @uses apply_filters
|
|
* @filter posts_where
|
|
* @return string
|
|
*/
|
|
function query_time_filter( $where, $query ) {
|
|
if ( self::got_infinity() ) {
|
|
global $wpdb;
|
|
|
|
$sort_field = self::get_query_sort_field( $query );
|
|
if ( false == $sort_field )
|
|
return $where;
|
|
|
|
$last_post_date = $_REQUEST['last_post_date'];
|
|
// Sanitize timestamp
|
|
if ( empty( $last_post_date ) || !preg_match( '|\d{4}\-\d{2}\-\d{2}|', $last_post_date ) )
|
|
return $where;
|
|
|
|
$operator = 'ASC' == $_REQUEST['query_args']['order'] ? '>' : '<';
|
|
|
|
// Construct the date query using our timestamp
|
|
$clause = $wpdb->prepare( " AND {$wpdb->posts}.{$sort_field} {$operator} %s", $last_post_date );
|
|
|
|
/**
|
|
* Filter Infinite Scroll's SQL date query making sure post queries
|
|
* will always return results prior to (descending sort)
|
|
* or before (ascending sort) the last post date.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @param string $clause SQL Date query.
|
|
* @param object $query Query.
|
|
* @param string $operator Query operator.
|
|
* @param string $last_post_date Last Post Date timestamp.
|
|
*/
|
|
$where .= apply_filters( 'infinite_scroll_posts_where', $clause, $query, $operator, $last_post_date );
|
|
}
|
|
|
|
return $where;
|
|
}
|
|
|
|
/**
|
|
* Let's overwrite the default post_per_page setting to always display a fixed amount.
|
|
*
|
|
* @param object $query
|
|
* @uses is_admin, self::archive_supports_infinity, self::get_settings
|
|
* @return null
|
|
*/
|
|
function posts_per_page_query( $query ) {
|
|
if ( ! is_admin() && self::archive_supports_infinity() && $query->is_main_query() )
|
|
$query->set( 'posts_per_page', self::get_settings()->posts_per_page );
|
|
}
|
|
|
|
/**
|
|
* Check if the IS output should be wrapped in a div.
|
|
* Setting value can be a boolean or a string specifying the class applied to the div.
|
|
*
|
|
* @uses self::get_settings
|
|
* @return bool
|
|
*/
|
|
function has_wrapper() {
|
|
return (bool) self::get_settings()->wrapper;
|
|
}
|
|
|
|
/**
|
|
* Returns the Ajax url
|
|
*
|
|
* @global $wp
|
|
* @uses home_url, add_query_arg, apply_filters
|
|
* @return string
|
|
*/
|
|
function ajax_url() {
|
|
$base_url = set_url_scheme( home_url( '/' ) );
|
|
|
|
$ajaxurl = add_query_arg( array( 'infinity' => 'scrolling' ), $base_url );
|
|
|
|
/**
|
|
* Filter the Infinite Scroll Ajax URL.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $ajaxurl Infinite Scroll Ajax URL.
|
|
*/
|
|
return apply_filters( 'infinite_scroll_ajax_url', $ajaxurl );
|
|
}
|
|
|
|
/**
|
|
* Our own Ajax response, avoiding calling admin-ajax
|
|
*/
|
|
function ajax_response() {
|
|
// Only proceed if the url query has a key of "Infinity"
|
|
if ( ! self::got_infinity() )
|
|
return false;
|
|
|
|
// This should already be defined below, but make sure.
|
|
if ( ! defined( 'DOING_AJAX' ) ) {
|
|
define( 'DOING_AJAX', true );
|
|
}
|
|
|
|
@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
|
|
send_nosniff_header();
|
|
|
|
/**
|
|
* Fires at the end of the Infinite Scroll Ajax response.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*/
|
|
do_action( 'custom_ajax_infinite_scroll' );
|
|
die( '0' );
|
|
}
|
|
|
|
/**
|
|
* Alias for renamed class method.
|
|
*
|
|
* Previously, JS settings object was unnecessarily output in the document head.
|
|
* When the hook was changed, the method name no longer made sense.
|
|
*/
|
|
function action_wp_head() {
|
|
$this->action_wp_footer_settings();
|
|
}
|
|
|
|
/**
|
|
* Prints the relevant infinite scroll settings in JS.
|
|
*
|
|
* @global $wp_rewrite
|
|
* @uses self::get_settings, esc_js, esc_url_raw, self::has_wrapper, __, apply_filters, do_action, self::get_query_vars
|
|
* @action wp_footer
|
|
* @return string
|
|
*/
|
|
function action_wp_footer_settings() {
|
|
global $wp_rewrite;
|
|
global $currentday;
|
|
|
|
// Default click handle text
|
|
$click_handle_text = __( 'Older posts', 'jetpack' );
|
|
|
|
// If a single CPT is displayed, use its plural name instead of "posts"
|
|
// Could be empty (posts) or an array of multiple post types.
|
|
// In the latter two cases cases, the default text is used, leaving the `infinite_scroll_js_settings` filter for further customization.
|
|
$post_type = self::wp_query()->get( 'post_type' );
|
|
if ( is_string( $post_type ) && ! empty( $post_type ) ) {
|
|
$post_type = get_post_type_object( $post_type );
|
|
|
|
if ( is_object( $post_type ) && ! is_wp_error( $post_type ) ) {
|
|
if ( isset( $post_type->labels->name ) ) {
|
|
$cpt_text = $post_type->labels->name;
|
|
} elseif ( isset( $post_type->label ) ) {
|
|
$cpt_text = $post_type->label;
|
|
}
|
|
|
|
if ( isset( $cpt_text ) ) {
|
|
$click_handle_text = sprintf( __( 'Older %s', 'jetpack' ), $cpt_text );
|
|
unset( $cpt_text );
|
|
}
|
|
}
|
|
}
|
|
unset( $post_type );
|
|
|
|
// Base JS settings
|
|
$js_settings = array(
|
|
'id' => self::get_settings()->container,
|
|
'ajaxurl' => esc_url_raw( self::ajax_url() ),
|
|
'type' => esc_js( self::get_settings()->type ),
|
|
'wrapper' => self::has_wrapper(),
|
|
'wrapper_class' => is_string( self::get_settings()->wrapper ) ? esc_js( self::get_settings()->wrapper ) : 'infinite-wrap',
|
|
'footer' => is_string( self::get_settings()->footer ) ? esc_js( self::get_settings()->footer ) : self::get_settings()->footer,
|
|
'click_handle' => esc_js( self::get_settings()->click_handle ),
|
|
'text' => esc_js( $click_handle_text ),
|
|
'totop' => esc_js( __( 'Scroll back to top', 'jetpack' ) ),
|
|
'currentday' => $currentday,
|
|
'order' => 'DESC',
|
|
'scripts' => array(),
|
|
'styles' => array(),
|
|
'google_analytics' => false,
|
|
'offset' => self::wp_query()->get( 'paged' ),
|
|
'history' => array(
|
|
'host' => preg_replace( '#^http(s)?://#i', '', untrailingslashit( get_option( 'home' ) ) ),
|
|
'path' => self::get_request_path(),
|
|
'use_trailing_slashes' => $wp_rewrite->use_trailing_slashes,
|
|
'parameters' => self::get_request_parameters(),
|
|
),
|
|
'query_args' => self::get_query_vars(),
|
|
'last_post_date' => self::get_last_post_date(),
|
|
);
|
|
|
|
// Optional order param
|
|
if ( isset( $_REQUEST['order'] ) ) {
|
|
$order = strtoupper( $_REQUEST['order'] );
|
|
|
|
if ( in_array( $order, array( 'ASC', 'DESC' ) ) )
|
|
$js_settings['order'] = $order;
|
|
}
|
|
|
|
/**
|
|
* Filter the Infinite Scroll JS settings outputted in the head.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param array $js_settings Infinite Scroll JS settings.
|
|
*/
|
|
$js_settings = apply_filters( 'infinite_scroll_js_settings', $js_settings );
|
|
|
|
/**
|
|
* Fires before Infinite Scroll outputs inline JavaScript in the head.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*/
|
|
do_action( 'infinite_scroll_wp_head' );
|
|
|
|
?>
|
|
<script type="text/javascript">
|
|
//<![CDATA[
|
|
var infiniteScroll = <?php echo json_encode( array( 'settings' => $js_settings ) ); ?>;
|
|
//]]>
|
|
</script>
|
|
<?php
|
|
}
|
|
|
|
/**
|
|
* Build path data for current request.
|
|
* Used for Google Analytics and pushState history tracking.
|
|
*
|
|
* @global $wp_rewrite
|
|
* @global $wp
|
|
* @uses user_trailingslashit, sanitize_text_field, add_query_arg
|
|
* @return string|bool
|
|
*/
|
|
private function get_request_path() {
|
|
global $wp_rewrite;
|
|
|
|
if ( $wp_rewrite->using_permalinks() ) {
|
|
global $wp;
|
|
|
|
// If called too early, bail
|
|
if ( ! isset( $wp->request ) )
|
|
return false;
|
|
|
|
// Determine path for paginated version of current request
|
|
if ( false != preg_match( '#' . $wp_rewrite->pagination_base . '/\d+/?$#i', $wp->request ) )
|
|
$path = preg_replace( '#' . $wp_rewrite->pagination_base . '/\d+$#i', $wp_rewrite->pagination_base . '/%d', $wp->request );
|
|
else
|
|
$path = $wp->request . '/' . $wp_rewrite->pagination_base . '/%d';
|
|
|
|
// Slashes everywhere we need them
|
|
if ( 0 !== strpos( $path, '/' ) )
|
|
$path = '/' . $path;
|
|
|
|
$path = user_trailingslashit( $path );
|
|
} else {
|
|
// Clean up raw $_REQUEST input
|
|
$path = array_map( 'sanitize_text_field', $_REQUEST );
|
|
$path = array_filter( $path );
|
|
|
|
$path['paged'] = '%d';
|
|
|
|
$path = add_query_arg( $path, '/' );
|
|
}
|
|
|
|
return empty( $path ) ? false : $path;
|
|
}
|
|
|
|
/**
|
|
* Return query string for current request, prefixed with '?'.
|
|
*
|
|
* @return string
|
|
*/
|
|
private function get_request_parameters() {
|
|
$uri = $_SERVER[ 'REQUEST_URI' ];
|
|
$uri = preg_replace( '/^[^?]*(\?.*$)/', '$1', $uri, 1, $count );
|
|
if ( $count != 1 )
|
|
return '';
|
|
return $uri;
|
|
}
|
|
|
|
/**
|
|
* Provide IS with a list of the scripts and stylesheets already present on the page.
|
|
* Since posts may contain require additional assets that haven't been loaded, this data will be used to track the additional assets.
|
|
*
|
|
* @global $wp_scripts, $wp_styles
|
|
* @action wp_footer
|
|
* @return string
|
|
*/
|
|
function action_wp_footer() {
|
|
global $wp_scripts, $wp_styles;
|
|
|
|
$scripts = is_a( $wp_scripts, 'WP_Scripts' ) ? $wp_scripts->done : array();
|
|
/**
|
|
* Filter the list of scripts already present on the page.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.1.2
|
|
*
|
|
* @param array $scripts Array of scripts present on the page.
|
|
*/
|
|
$scripts = apply_filters( 'infinite_scroll_existing_scripts', $scripts );
|
|
|
|
$styles = is_a( $wp_styles, 'WP_Styles' ) ? $wp_styles->done : array();
|
|
/**
|
|
* Filter the list of styles already present on the page.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.1.2
|
|
*
|
|
* @param array $styles Array of styles present on the page.
|
|
*/
|
|
$styles = apply_filters( 'infinite_scroll_existing_stylesheets', $styles );
|
|
|
|
?><script type="text/javascript">
|
|
jQuery.extend( infiniteScroll.settings.scripts, <?php echo json_encode( $scripts ); ?> );
|
|
jQuery.extend( infiniteScroll.settings.styles, <?php echo json_encode( $styles ); ?> );
|
|
</script><?php
|
|
}
|
|
|
|
/**
|
|
* Identify additional scripts required by the latest set of IS posts and provide the necessary data to the IS response handler.
|
|
*
|
|
* @global $wp_scripts
|
|
* @uses sanitize_text_field, add_query_arg
|
|
* @filter infinite_scroll_results
|
|
* @return array
|
|
*/
|
|
function filter_infinite_scroll_results( $results, $query_args, $wp_query ) {
|
|
// Don't bother unless there are posts to display
|
|
if ( 'success' != $results['type'] )
|
|
return $results;
|
|
|
|
// Parse and sanitize the script handles already output
|
|
$initial_scripts = isset( $_REQUEST['scripts'] ) && is_array( $_REQUEST['scripts'] ) ? array_map( 'sanitize_text_field', $_REQUEST['scripts'] ) : false;
|
|
|
|
if ( is_array( $initial_scripts ) ) {
|
|
global $wp_scripts;
|
|
|
|
// Identify new scripts needed by the latest set of IS posts
|
|
$new_scripts = array_diff( $wp_scripts->done, $initial_scripts );
|
|
|
|
// If new scripts are needed, extract relevant data from $wp_scripts
|
|
if ( ! empty( $new_scripts ) ) {
|
|
$results['scripts'] = array();
|
|
|
|
foreach ( $new_scripts as $handle ) {
|
|
// Abort if somehow the handle doesn't correspond to a registered script
|
|
if ( ! isset( $wp_scripts->registered[ $handle ] ) )
|
|
continue;
|
|
|
|
// Provide basic script data
|
|
$script_data = array(
|
|
'handle' => $handle,
|
|
'footer' => ( is_array( $wp_scripts->in_footer ) && in_array( $handle, $wp_scripts->in_footer ) ),
|
|
'extra_data' => $wp_scripts->print_extra_script( $handle, false )
|
|
);
|
|
|
|
// Base source
|
|
$src = $wp_scripts->registered[ $handle ]->src;
|
|
|
|
// Take base_url into account
|
|
if ( strpos( $src, 'http' ) !== 0 )
|
|
$src = $wp_scripts->base_url . $src;
|
|
|
|
// Version and additional arguments
|
|
if ( null === $wp_scripts->registered[ $handle ]->ver )
|
|
$ver = '';
|
|
else
|
|
$ver = $wp_scripts->registered[ $handle ]->ver ? $wp_scripts->registered[ $handle ]->ver : $wp_scripts->default_version;
|
|
|
|
if ( isset( $wp_scripts->args[ $handle ] ) )
|
|
$ver = $ver ? $ver . '&' . $wp_scripts->args[$handle] : $wp_scripts->args[$handle];
|
|
|
|
// Full script source with version info
|
|
$script_data['src'] = add_query_arg( 'ver', $ver, $src );
|
|
|
|
// Add script to data that will be returned to IS JS
|
|
array_push( $results['scripts'], $script_data );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Expose additional script data to filters, but only include in final `$results` array if needed.
|
|
if ( ! isset( $results['scripts'] ) )
|
|
$results['scripts'] = array();
|
|
|
|
/**
|
|
* Filter the additional scripts required by the latest set of IS posts.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.1.2
|
|
*
|
|
* @param array $results['scripts'] Additional scripts required by the latest set of IS posts.
|
|
* @param array|bool $initial_scripts Set of scripts loaded on each page.
|
|
* @param array $results Array of Infinite Scroll results.
|
|
* @param array $query_args Array of Query arguments.
|
|
* @param WP_Query $wp_query WP Query.
|
|
*/
|
|
$results['scripts'] = apply_filters(
|
|
'infinite_scroll_additional_scripts',
|
|
$results['scripts'],
|
|
$initial_scripts,
|
|
$results,
|
|
$query_args,
|
|
$wp_query
|
|
);
|
|
|
|
if ( empty( $results['scripts'] ) )
|
|
unset( $results['scripts' ] );
|
|
|
|
// Parse and sanitize the style handles already output
|
|
$initial_styles = isset( $_REQUEST['styles'] ) && is_array( $_REQUEST['styles'] ) ? array_map( 'sanitize_text_field', $_REQUEST['styles'] ) : false;
|
|
|
|
if ( is_array( $initial_styles ) ) {
|
|
global $wp_styles;
|
|
|
|
// Identify new styles needed by the latest set of IS posts
|
|
$new_styles = array_diff( $wp_styles->done, $initial_styles );
|
|
|
|
// If new styles are needed, extract relevant data from $wp_styles
|
|
if ( ! empty( $new_styles ) ) {
|
|
$results['styles'] = array();
|
|
|
|
foreach ( $new_styles as $handle ) {
|
|
// Abort if somehow the handle doesn't correspond to a registered stylesheet
|
|
if ( ! isset( $wp_styles->registered[ $handle ] ) )
|
|
continue;
|
|
|
|
// Provide basic style data
|
|
$style_data = array(
|
|
'handle' => $handle,
|
|
'media' => 'all'
|
|
);
|
|
|
|
// Base source
|
|
$src = $wp_styles->registered[ $handle ]->src;
|
|
|
|
// Take base_url into account
|
|
if ( strpos( $src, 'http' ) !== 0 )
|
|
$src = $wp_styles->base_url . $src;
|
|
|
|
// Version and additional arguments
|
|
if ( null === $wp_styles->registered[ $handle ]->ver )
|
|
$ver = '';
|
|
else
|
|
$ver = $wp_styles->registered[ $handle ]->ver ? $wp_styles->registered[ $handle ]->ver : $wp_styles->default_version;
|
|
|
|
if ( isset($wp_styles->args[ $handle ] ) )
|
|
$ver = $ver ? $ver . '&' . $wp_styles->args[$handle] : $wp_styles->args[$handle];
|
|
|
|
// Full stylesheet source with version info
|
|
$style_data['src'] = add_query_arg( 'ver', $ver, $src );
|
|
|
|
// Parse stylesheet's conditional comments if present, converting to logic executable in JS
|
|
if ( isset( $wp_styles->registered[ $handle ]->extra['conditional'] ) && $wp_styles->registered[ $handle ]->extra['conditional'] ) {
|
|
// First, convert conditional comment operators to standard logical operators. %ver is replaced in JS with the IE version
|
|
$style_data['conditional'] = str_replace( array(
|
|
'lte',
|
|
'lt',
|
|
'gte',
|
|
'gt'
|
|
), array(
|
|
'%ver <=',
|
|
'%ver <',
|
|
'%ver >=',
|
|
'%ver >',
|
|
), $wp_styles->registered[ $handle ]->extra['conditional'] );
|
|
|
|
// Next, replace any !IE checks. These shouldn't be present since WP's conditional stylesheet implementation doesn't support them, but someone could be _doing_it_wrong().
|
|
$style_data['conditional'] = preg_replace( '#!\s*IE(\s*\d+){0}#i', '1==2', $style_data['conditional'] );
|
|
|
|
// Lastly, remove the IE strings
|
|
$style_data['conditional'] = str_replace( 'IE', '', $style_data['conditional'] );
|
|
}
|
|
|
|
// Parse requested media context for stylesheet
|
|
if ( isset( $wp_styles->registered[ $handle ]->args ) )
|
|
$style_data['media'] = esc_attr( $wp_styles->registered[ $handle ]->args );
|
|
|
|
// Add stylesheet to data that will be returned to IS JS
|
|
array_push( $results['styles'], $style_data );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Expose additional stylesheet data to filters, but only include in final `$results` array if needed.
|
|
if ( ! isset( $results['styles'] ) )
|
|
$results['styles'] = array();
|
|
|
|
/**
|
|
* Filter the additional styles required by the latest set of IS posts.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.1.2
|
|
*
|
|
* @param array $results['styles'] Additional styles required by the latest set of IS posts.
|
|
* @param array|bool $initial_styles Set of styles loaded on each page.
|
|
* @param array $results Array of Infinite Scroll results.
|
|
* @param array $query_args Array of Query arguments.
|
|
* @param WP_Query $wp_query WP Query.
|
|
*/
|
|
$results['styles'] = apply_filters(
|
|
'infinite_scroll_additional_stylesheets',
|
|
$results['styles'],
|
|
$initial_styles,
|
|
$results,
|
|
$query_args,
|
|
$wp_query
|
|
);
|
|
|
|
if ( empty( $results['styles'] ) )
|
|
unset( $results['styles' ] );
|
|
|
|
// Lastly, return the IS results array
|
|
return $results;
|
|
}
|
|
|
|
/**
|
|
* Runs the query and returns the results via JSON.
|
|
* Triggered by an AJAX request.
|
|
*
|
|
* @global $wp_query
|
|
* @global $wp_the_query
|
|
* @uses current_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
|
|
* @return string or null
|
|
*/
|
|
function query() {
|
|
global $wp_customize;
|
|
if ( ! isset( $_REQUEST['page'] ) || ! current_theme_supports( 'infinite-scroll' ) )
|
|
die;
|
|
|
|
$page = (int) $_REQUEST['page'];
|
|
|
|
// Sanitize and set $previousday. Expected format: dd.mm.yy
|
|
if ( preg_match( '/^\d{2}\.\d{2}\.\d{2}$/', $_REQUEST['currentday'] ) ) {
|
|
global $previousday;
|
|
$previousday = $_REQUEST['currentday'];
|
|
}
|
|
|
|
$sticky = get_option( 'sticky_posts' );
|
|
$post__not_in = self::wp_query()->get( 'post__not_in' );
|
|
|
|
//we have to take post__not_in args into consideration here not only sticky posts
|
|
if ( true === isset( $_REQUEST['query_args']['post__not_in'] ) ) {
|
|
$post__not_in = array_merge( $post__not_in, array_map( 'intval', (array) $_REQUEST['query_args']['post__not_in'] ) );
|
|
}
|
|
|
|
if ( ! empty( $post__not_in ) )
|
|
$sticky = array_unique( array_merge( $sticky, $post__not_in ) );
|
|
|
|
$post_status = array( 'publish' );
|
|
if ( current_user_can( 'read_private_posts' ) )
|
|
array_push( $post_status, 'private' );
|
|
|
|
$order = in_array( $_REQUEST['order'], array( 'ASC', 'DESC' ) ) ? $_REQUEST['order'] : 'DESC';
|
|
|
|
$query_args = array_merge( self::wp_query()->query_vars, array(
|
|
'paged' => $page,
|
|
'post_status' => $post_status,
|
|
'posts_per_page' => self::get_settings()->posts_per_page,
|
|
'post__not_in' => ( array ) $sticky,
|
|
'order' => $order
|
|
) );
|
|
|
|
// 4.0 ?s= compatibility, see https://core.trac.wordpress.org/ticket/11330#comment:50
|
|
if ( empty( $query_args['s'] ) && ! isset( self::wp_query()->query['s'] ) ) {
|
|
unset( $query_args['s'] );
|
|
}
|
|
|
|
// By default, don't query for a specific page of a paged post object.
|
|
// This argument can come from merging self::wp_query() into $query_args above.
|
|
// Since IS is only used on archives, we should always display the first page of any paged content.
|
|
unset( $query_args['page'] );
|
|
|
|
/**
|
|
* Filter the array of main query arguments.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.1
|
|
*
|
|
* @param array $query_args Array of Query arguments.
|
|
*/
|
|
$query_args = apply_filters( 'infinite_scroll_query_args', $query_args );
|
|
|
|
// Add query filter that checks for posts below the date
|
|
add_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 );
|
|
|
|
$GLOBALS['wp_the_query'] = $GLOBALS['wp_query'] = new WP_Query( $query_args );
|
|
|
|
remove_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 );
|
|
|
|
$results = array();
|
|
|
|
if ( have_posts() ) {
|
|
// Fire wp_head to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer.
|
|
ob_start();
|
|
wp_head();
|
|
while ( ob_get_length() ) {
|
|
ob_end_clean();
|
|
}
|
|
|
|
$results['type'] = 'success';
|
|
|
|
// First, try theme's specified rendering handler, either specified via `add_theme_support` or by hooking to this action directly.
|
|
ob_start();
|
|
/**
|
|
* Fires when rendering Infinite Scroll posts.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*/
|
|
do_action( 'infinite_scroll_render' );
|
|
$results['html'] = ob_get_clean();
|
|
|
|
// 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.
|
|
if ( empty( $results['html'] ) ) {
|
|
add_action( 'infinite_scroll_render', array( $this, 'render' ) );
|
|
rewind_posts();
|
|
|
|
ob_start();
|
|
/** This action is already documented in modules/infinite-scroll/infinity.php */
|
|
do_action( 'infinite_scroll_render' );
|
|
$results['html'] = ob_get_clean();
|
|
}
|
|
|
|
// If primary and fallback rendering methods fail, prevent further IS rendering attempts. Otherwise, wrap the output if requested.
|
|
if ( empty( $results['html'] ) ) {
|
|
unset( $results['html'] );
|
|
/**
|
|
* Fires when Infinite Scoll doesn't render any posts.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*/
|
|
do_action( 'infinite_scroll_empty' );
|
|
$results['type'] = 'empty';
|
|
} elseif ( $this->has_wrapper() ) {
|
|
$wrapper_classes = is_string( self::get_settings()->wrapper ) ? self::get_settings()->wrapper : 'infinite-wrap';
|
|
$wrapper_classes .= ' infinite-view-' . $page;
|
|
$wrapper_classes = trim( $wrapper_classes );
|
|
|
|
$results['html'] = '<div class="' . esc_attr( $wrapper_classes ) . '" id="infinite-view-' . $page . '" data-page-num="' . $page . '">' . $results['html'] . '</div>';
|
|
}
|
|
|
|
// Fire wp_footer to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer.
|
|
ob_start();
|
|
wp_footer();
|
|
while ( ob_get_length() ) {
|
|
ob_end_clean();
|
|
}
|
|
|
|
if ( 'success' == $results['type'] ) {
|
|
global $currentday;
|
|
$results['lastbatch'] = self::is_last_batch();
|
|
$results['currentday'] = $currentday;
|
|
}
|
|
|
|
// Loop through posts to capture sharing data for new posts loaded via Infinite Scroll
|
|
if ( 'success' == $results['type'] && function_exists( 'sharing_register_post_for_share_counts' ) ) {
|
|
global $jetpack_sharing_counts;
|
|
|
|
while( have_posts() ) {
|
|
the_post();
|
|
|
|
sharing_register_post_for_share_counts( get_the_ID() );
|
|
}
|
|
|
|
$results['postflair'] = array_flip( $jetpack_sharing_counts );
|
|
}
|
|
} else {
|
|
/** This action is already documented in modules/infinite-scroll/infinity.php */
|
|
do_action( 'infinite_scroll_empty' );
|
|
$results['type'] = 'empty';
|
|
}
|
|
|
|
if ( is_customize_preview() ) {
|
|
$wp_customize->remove_preview_signature();
|
|
}
|
|
|
|
wp_send_json(
|
|
/**
|
|
* Filter the Infinite Scroll results.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param array $results Array of Infinite Scroll results.
|
|
* @param array $query_args Array of main query arguments.
|
|
* @param WP_Query $wp_query WP Query.
|
|
*/
|
|
apply_filters( 'infinite_scroll_results', $results, $query_args, self::wp_query() )
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Update the $allowed_vars array with the standard WP public and private
|
|
* query vars, as well as taxonomy vars
|
|
*
|
|
* @global $wp
|
|
* @param array $allowed_vars
|
|
* @filter infinite_scroll_allowed_vars
|
|
* @return array
|
|
*/
|
|
function allowed_query_vars( $allowed_vars ) {
|
|
global $wp;
|
|
|
|
$allowed_vars += $wp->public_query_vars;
|
|
$allowed_vars += $wp->private_query_vars;
|
|
$allowed_vars += $this->get_taxonomy_vars();
|
|
|
|
foreach ( array_keys( $allowed_vars, 'paged' ) as $key ) {
|
|
unset( $allowed_vars[ $key ] );
|
|
}
|
|
|
|
return array_unique( $allowed_vars );
|
|
}
|
|
|
|
/**
|
|
* Returns an array of stock and custom taxonomy query vars
|
|
*
|
|
* @global $wp_taxonomies
|
|
* @return array
|
|
*/
|
|
function get_taxonomy_vars() {
|
|
global $wp_taxonomies;
|
|
|
|
$taxonomy_vars = array();
|
|
foreach ( $wp_taxonomies as $taxonomy => $t ) {
|
|
if ( $t->query_var )
|
|
$taxonomy_vars[] = $t->query_var;
|
|
}
|
|
|
|
// still needed?
|
|
$taxonomy_vars[] = 'tag_id';
|
|
|
|
return $taxonomy_vars;
|
|
}
|
|
|
|
/**
|
|
* Update the $query_args array with the parameters provided via AJAX/GET.
|
|
*
|
|
* @param array $query_args
|
|
* @filter infinite_scroll_query_args
|
|
* @return array
|
|
*/
|
|
function inject_query_args( $query_args ) {
|
|
/**
|
|
* Filter the array of allowed Infinite Scroll query arguments.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param array $args Array of allowed Infinite Scroll query arguments.
|
|
* @param array $query_args Array of query arguments.
|
|
*/
|
|
$allowed_vars = apply_filters( 'infinite_scroll_allowed_vars', array(), $query_args );
|
|
|
|
$query_args = array_merge( $query_args, array(
|
|
'suppress_filters' => false,
|
|
) );
|
|
|
|
if ( is_array( $_REQUEST[ 'query_args' ] ) ) {
|
|
foreach ( $_REQUEST[ 'query_args' ] as $var => $value ) {
|
|
if ( in_array( $var, $allowed_vars ) && ! empty( $value ) )
|
|
$query_args[ $var ] = $value;
|
|
}
|
|
}
|
|
|
|
return $query_args;
|
|
}
|
|
|
|
/**
|
|
* Rendering fallback used when themes don't specify their own handler.
|
|
*
|
|
* @uses have_posts, the_post, get_template_part, get_post_format
|
|
* @action infinite_scroll_render
|
|
* @return string
|
|
*/
|
|
function render() {
|
|
while ( have_posts() ) {
|
|
the_post();
|
|
|
|
get_template_part( 'content', get_post_format() );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Allow plugins to filter what archives Infinite Scroll supports
|
|
*
|
|
* @uses current_theme_supports, is_home, is_archive, apply_filters, self::get_settings
|
|
* @return bool
|
|
*/
|
|
public static function archive_supports_infinity() {
|
|
$supported = current_theme_supports( 'infinite-scroll' ) && ( is_home() || is_archive() || is_search() );
|
|
|
|
// Disable when previewing a non-active theme in the customizer
|
|
if ( is_customize_preview() && ! $GLOBALS['wp_customize']->is_theme_active() ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Allow plugins to filter what archives Infinite Scroll supports.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param bool $supported Does the Archive page support Infinite Scroll.
|
|
* @param object self::get_settings() IS settings provided by theme.
|
|
*/
|
|
return (bool) apply_filters( 'infinite_scroll_archive_supported', $supported, self::get_settings() );
|
|
}
|
|
|
|
/**
|
|
* The Infinite Blog Footer
|
|
*
|
|
* @uses self::get_settings, self::archive_supports_infinity, self::default_footer
|
|
* @return string or null
|
|
*/
|
|
function footer() {
|
|
// Bail if theme requested footer not show
|
|
if ( false == self::get_settings()->footer )
|
|
return;
|
|
|
|
// We only need the new footer for the 'scroll' type
|
|
if ( 'scroll' != self::get_settings()->type || ! self::archive_supports_infinity() )
|
|
return;
|
|
|
|
// Display a footer, either user-specified or a default
|
|
if ( false !== self::get_settings()->footer_callback && is_callable( self::get_settings()->footer_callback ) )
|
|
call_user_func( self::get_settings()->footer_callback, self::get_settings() );
|
|
else
|
|
self::default_footer();
|
|
}
|
|
|
|
/**
|
|
* Render default IS footer
|
|
*
|
|
* @uses __, wp_get_theme, get_current_theme, apply_filters, home_url, esc_attr, get_bloginfo, bloginfo
|
|
* @return string
|
|
*/
|
|
private function default_footer() {
|
|
$credits = sprintf(
|
|
'<a href="http://wordpress.org/" target="_blank" rel="generator">%1$s</a> ',
|
|
__( 'Proudly powered by WordPress', 'jetpack' )
|
|
);
|
|
$credits .= sprintf(
|
|
__( 'Theme: %1$s.', 'jetpack' ),
|
|
function_exists( 'wp_get_theme' ) ? wp_get_theme()->Name : get_current_theme()
|
|
);
|
|
/**
|
|
* Filter Infinite Scroll's credit text.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $credits Infinite Scroll credits.
|
|
*/
|
|
$credits = apply_filters( 'infinite_scroll_credit', $credits );
|
|
|
|
?>
|
|
<div id="infinite-footer">
|
|
<div class="container">
|
|
<div class="blog-info">
|
|
<a id="infinity-blog-title" href="<?php echo home_url( '/' ); ?>" target="_blank" rel="home">
|
|
<?php bloginfo( 'name' ); ?>
|
|
</a>
|
|
</div>
|
|
<div class="blog-credits">
|
|
<?php echo $credits; ?>
|
|
</div>
|
|
</div>
|
|
</div><!-- #infinite-footer -->
|
|
<?php
|
|
}
|
|
|
|
/**
|
|
* Ensure that IS doesn't interfere with Grunion by stripping IS query arguments from the Grunion redirect URL.
|
|
* When arguments are present, Grunion redirects to the IS AJAX endpoint.
|
|
*
|
|
* @param string $url
|
|
* @uses remove_query_arg
|
|
* @filter grunion_contact_form_redirect_url
|
|
* @return string
|
|
*/
|
|
public function filter_grunion_redirect_url( $url ) {
|
|
// Remove IS query args, if present
|
|
if ( false !== strpos( $url, 'infinity=scrolling' ) ) {
|
|
$url = remove_query_arg( array(
|
|
'infinity',
|
|
'action',
|
|
'page',
|
|
'order',
|
|
'scripts',
|
|
'styles'
|
|
), $url );
|
|
}
|
|
|
|
return $url;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Initialize The_Neverending_Home_Page
|
|
*/
|
|
function the_neverending_home_page_init() {
|
|
if ( ! current_theme_supports( 'infinite-scroll' ) )
|
|
return;
|
|
|
|
new The_Neverending_Home_Page;
|
|
}
|
|
add_action( 'init', 'the_neverending_home_page_init', 20 );
|
|
|
|
/**
|
|
* Check whether the current theme is infinite-scroll aware.
|
|
* If so, include the files which add theme support.
|
|
*/
|
|
function the_neverending_home_page_theme_support() {
|
|
$theme_name = get_stylesheet();
|
|
|
|
/**
|
|
* Filter the path to the Infinite Scroll compatibility file.
|
|
*
|
|
* @module infinite-scroll
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $str IS compatibility file path.
|
|
* @param string $theme_name Theme name.
|
|
*/
|
|
$customization_file = apply_filters( 'infinite_scroll_customization_file', dirname( __FILE__ ) . "/themes/{$theme_name}.php", $theme_name );
|
|
|
|
if ( is_readable( $customization_file ) )
|
|
require_once( $customization_file );
|
|
}
|
|
add_action( 'after_setup_theme', 'the_neverending_home_page_theme_support', 5 );
|
|
|
|
/**
|
|
* Early accommodation of the Infinite Scroll AJAX request
|
|
*/
|
|
if ( The_Neverending_Home_Page::got_infinity() ) {
|
|
/**
|
|
* If we're sure this is an AJAX request (i.e. the HTTP_X_REQUESTED_WITH header says so),
|
|
* indicate it as early as possible for actions like init
|
|
*/
|
|
if ( ! defined( 'DOING_AJAX' ) &&
|
|
isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) &&
|
|
strtoupper( $_SERVER['HTTP_X_REQUESTED_WITH'] ) == 'XMLHTTPREQUEST'
|
|
) {
|
|
define( 'DOING_AJAX', true );
|
|
}
|
|
|
|
// Don't load the admin bar when doing the AJAX response.
|
|
show_admin_bar( false );
|
|
}
|