Automattic /
jetpack
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like The_Neverending_Home_Page often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use The_Neverending_Home_Page, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | class The_Neverending_Home_Page { |
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| 19 | /** |
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| 20 | * Register actions and filters, plus parse IS settings |
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| 21 | * |
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| 22 | * @uses add_action, add_filter, self::get_settings |
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| 23 | * @return null |
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|
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| 24 | */ |
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| 25 | function __construct() { |
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| 26 | add_action( 'pre_get_posts', array( $this, 'posts_per_page_query' ) ); |
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| 27 | |||
| 28 | add_action( 'admin_init', array( $this, 'settings_api_init' ) ); |
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| 29 | add_action( 'template_redirect', array( $this, 'action_template_redirect' ) ); |
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| 30 | add_action( 'template_redirect', array( $this, 'ajax_response' ) ); |
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| 31 | add_action( 'custom_ajax_infinite_scroll', array( $this, 'query' ) ); |
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| 32 | add_filter( 'infinite_scroll_query_args', array( $this, 'inject_query_args' ) ); |
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| 33 | add_filter( 'infinite_scroll_allowed_vars', array( $this, 'allowed_query_vars' ) ); |
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| 34 | add_action( 'the_post', array( $this, 'preserve_more_tag' ) ); |
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| 35 | add_action( 'wp_footer', array( $this, 'footer' ) ); |
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| 36 | |||
| 37 | // Plugin compatibility |
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| 38 | add_filter( 'grunion_contact_form_redirect_url', array( $this, 'filter_grunion_redirect_url' ) ); |
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| 39 | |||
| 40 | // Parse IS settings from theme |
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| 41 | self::get_settings(); |
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| 42 | } |
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| 43 | |||
| 44 | /** |
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| 45 | * Initialize our static variables |
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| 46 | */ |
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| 47 | static $the_time = null; |
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| 48 | static $settings = null; // Don't access directly, instead use self::get_settings(). |
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| 49 | |||
| 50 | static $option_name_enabled = 'infinite_scroll'; |
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| 51 | |||
| 52 | /** |
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| 53 | * Parse IS settings provided by theme |
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| 54 | * |
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| 55 | * @uses get_theme_support, infinite_scroll_has_footer_widgets, sanitize_title, add_action, get_option, wp_parse_args, is_active_sidebar |
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| 56 | * @return object |
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| 57 | */ |
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| 58 | static function get_settings() { |
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| 59 | if ( is_null( self::$settings ) ) { |
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| 60 | $css_pattern = '#[^A-Z\d\-_]#i'; |
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| 61 | |||
| 62 | $settings = $defaults = array( |
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| 63 | 'type' => 'scroll', // scroll | click |
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| 64 | 'requested_type' => 'scroll', // store the original type for use when logic overrides it |
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| 65 | 'footer_widgets' => false, // true | false | sidebar_id | array of sidebar_ids -- last two are checked with is_active_sidebar |
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| 66 | 'container' => 'content', // container html id |
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| 67 | 'wrapper' => true, // true | false | html class |
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| 68 | 'render' => false, // optional function, otherwise the `content` template part will be used |
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| 69 | '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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| 70 | 'footer_callback' => false, // function to be called to render the IS footer, in place of the default |
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| 71 | 'posts_per_page' => false, // int | false to set based on IS type |
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| 72 | '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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| 73 | ); |
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| 74 | |||
| 75 | // Validate settings passed through add_theme_support() |
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| 76 | $_settings = get_theme_support( 'infinite-scroll' ); |
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| 77 | |||
| 78 | if ( is_array( $_settings ) ) { |
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| 79 | // Preferred implementation, where theme provides an array of options |
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| 80 | if ( isset( $_settings[0] ) && is_array( $_settings[0] ) ) { |
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| 81 | foreach ( $_settings[0] as $key => $value ) { |
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| 82 | switch ( $key ) { |
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| 83 | case 'type' : |
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| 84 | if ( in_array( $value, array( 'scroll', 'click' ) ) ) |
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| 85 | $settings[ $key ] = $settings['requested_type'] = $value; |
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| 86 | |||
| 87 | break; |
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| 88 | |||
| 89 | case 'footer_widgets' : |
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| 90 | if ( is_string( $value ) ) |
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| 91 | $settings[ $key ] = sanitize_title( $value ); |
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| 92 | elseif ( is_array( $value ) ) |
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| 93 | $settings[ $key ] = array_map( 'sanitize_title', $value ); |
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| 94 | elseif ( is_bool( $value ) ) |
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| 95 | $settings[ $key ] = $value; |
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| 96 | |||
| 97 | break; |
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| 98 | |||
| 99 | case 'container' : |
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| 100 | View Code Duplication | case 'wrapper' : |
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| 101 | if ( 'wrapper' == $key && is_bool( $value ) ) { |
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| 102 | $settings[ $key ] = $value; |
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| 103 | } else { |
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| 104 | $value = preg_replace( $css_pattern, '', $value ); |
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| 105 | |||
| 106 | if ( ! empty( $value ) ) |
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| 107 | $settings[ $key ] = $value; |
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| 108 | } |
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| 109 | |||
| 110 | break; |
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| 111 | |||
| 112 | case 'render' : |
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| 113 | if ( false !== $value && is_callable( $value ) ) { |
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| 114 | $settings[ $key ] = $value; |
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| 115 | |||
| 116 | add_action( 'infinite_scroll_render', $value ); |
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| 117 | } |
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| 118 | |||
| 119 | break; |
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| 120 | |||
| 121 | View Code Duplication | case 'footer' : |
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| 122 | if ( is_bool( $value ) ) { |
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| 123 | $settings[ $key ] = $value; |
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| 124 | } elseif ( is_string( $value ) ) { |
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| 125 | $value = preg_replace( $css_pattern, '', $value ); |
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| 126 | |||
| 127 | if ( ! empty( $value ) ) |
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| 128 | $settings[ $key ] = $value; |
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| 129 | } |
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| 130 | |||
| 131 | break; |
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| 132 | |||
| 133 | case 'footer_callback' : |
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| 134 | if ( is_callable( $value ) ) |
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| 135 | $settings[ $key ] = $value; |
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| 136 | else |
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| 137 | $settings[ $key ] = false; |
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| 138 | |||
| 139 | break; |
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| 140 | |||
| 141 | case 'posts_per_page' : |
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| 142 | if ( is_numeric( $value ) ) |
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| 143 | $settings[ $key ] = (int) $value; |
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| 144 | |||
| 145 | break; |
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| 146 | |||
| 147 | case 'click_handle' : |
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| 148 | if ( is_bool( $value ) ) { |
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| 149 | $settings[ $key ] = $value; |
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| 150 | } |
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| 151 | |||
| 152 | break; |
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| 153 | |||
| 154 | default: |
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| 155 | continue; |
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| 156 | |||
| 157 | break; |
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| 158 | } |
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| 159 | } |
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| 160 | } elseif ( is_string( $_settings[0] ) ) { |
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| 161 | // Checks below are for backwards compatibility |
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| 162 | |||
| 163 | // Container to append new posts to |
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| 164 | $settings['container'] = preg_replace( $css_pattern, '', $_settings[0] ); |
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| 165 | |||
| 166 | // Wrap IS elements? |
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| 167 | if ( isset( $_settings[1] ) ) |
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| 168 | $settings['wrapper'] = (bool) $_settings[1]; |
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| 169 | } |
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| 170 | } |
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| 171 | |||
| 172 | // Always ensure all values are present in the final array |
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| 173 | $settings = wp_parse_args( $settings, $defaults ); |
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| 174 | |||
| 175 | // Check if a legacy `infinite_scroll_has_footer_widgets()` function is defined and override the footer_widgets parameter's value. |
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| 176 | // 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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| 177 | // 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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| 178 | if ( function_exists( 'infinite_scroll_has_footer_widgets' ) ) { |
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| 179 | $settings['footer_widgets'] = (bool) infinite_scroll_has_footer_widgets(); |
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| 180 | } elseif ( is_array( $settings['footer_widgets'] ) ) { |
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| 181 | $sidebar_ids = $settings['footer_widgets']; |
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| 182 | $settings['footer_widgets'] = false; |
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| 183 | |||
| 184 | foreach ( $sidebar_ids as $sidebar_id ) { |
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| 185 | if ( is_active_sidebar( $sidebar_id ) ) { |
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| 186 | $settings['footer_widgets'] = true; |
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| 187 | break; |
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| 188 | } |
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| 189 | } |
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| 190 | |||
| 191 | unset( $sidebar_ids ); |
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| 192 | unset( $sidebar_id ); |
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| 193 | } elseif ( is_string( $settings['footer_widgets'] ) ) { |
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| 194 | $settings['footer_widgets'] = (bool) is_active_sidebar( $settings['footer_widgets'] ); |
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| 195 | } |
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| 196 | |||
| 197 | /** |
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| 198 | * Filter Infinite Scroll's `footer_widgets` parameter. |
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| 199 | * |
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| 200 | * @module infinite-scroll |
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| 201 | * |
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| 202 | * @since 2.0.0 |
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| 203 | * |
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| 204 | * @param bool $settings['footer_widgets'] Does the current theme have Footer Widgets. |
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| 205 | */ |
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| 206 | $settings['footer_widgets'] = apply_filters( 'infinite_scroll_has_footer_widgets', $settings['footer_widgets'] ); |
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| 207 | |||
| 208 | // 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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| 209 | if ( ! is_bool( $settings['footer_widgets'] ) ) |
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| 210 | $settings['footer_widgets'] = false; |
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| 211 | |||
| 212 | // Ensure that IS is enabled and no footer widgets exist if the IS type isn't already "click". |
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| 213 | if ( 'click' != $settings['type'] ) { |
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| 214 | // Check the setting status |
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| 215 | $disabled = '' === get_option( self::$option_name_enabled ) ? true : false; |
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| 216 | |||
| 217 | // Footer content or Reading option check |
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| 218 | if ( $settings['footer_widgets'] || $disabled ) |
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| 219 | $settings['type'] = 'click'; |
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| 220 | } |
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| 221 | |||
| 222 | // posts_per_page defaults to 7 for scroll, posts_per_page option for click |
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| 223 | if ( false === $settings['posts_per_page'] ) { |
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| 224 | if ( 'scroll' === $settings['type'] ) { |
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| 225 | $settings['posts_per_page'] = 7; |
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| 226 | } |
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| 227 | else { |
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| 228 | $settings['posts_per_page'] = (int) get_option( 'posts_per_page' ); |
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| 229 | } |
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| 230 | } |
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| 231 | |||
| 232 | // If IS is set to click, and if the site owner changed posts_per_page, let's use that |
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| 233 | if ( |
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| 234 | 'click' == $settings['type'] |
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| 235 | && ( '10' !== get_option( 'posts_per_page' ) ) |
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| 236 | ) { |
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| 237 | $settings['posts_per_page'] = (int) get_option( 'posts_per_page' ); |
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| 238 | } |
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| 239 | |||
| 240 | // Force display of the click handler and attendant bits when the type isn't `click` |
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| 241 | if ( 'click' !== $settings['type'] ) { |
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| 242 | $settings['click_handle'] = true; |
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| 243 | } |
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| 244 | |||
| 245 | // Store final settings in a class static to avoid reparsing |
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| 246 | /** |
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| 247 | * Filter the array of Infinite Scroll settings. |
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| 248 | * |
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| 249 | * @module infinite-scroll |
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| 250 | * |
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| 251 | * @since 2.0.0 |
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| 252 | * |
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| 253 | * @param array $settings Array of Infinite Scroll settings. |
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| 254 | */ |
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| 255 | self::$settings = apply_filters( 'infinite_scroll_settings', $settings ); |
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| 256 | } |
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| 257 | |||
| 258 | /** This filter is documented in modules/infinite-scroll/infinity.php */ |
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| 259 | return (object) apply_filters( 'infinite_scroll_settings', self::$settings ); |
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| 260 | } |
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| 261 | |||
| 262 | /** |
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| 263 | * Retrieve the query used with Infinite Scroll |
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| 264 | * |
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| 265 | * @global $wp_the_query |
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| 266 | * @uses apply_filters |
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| 267 | * @return object |
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| 268 | */ |
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| 269 | static function wp_query() { |
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| 270 | global $wp_the_query; |
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| 271 | /** |
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| 272 | * Filter the Infinite Scroll query object. |
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| 273 | * |
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| 274 | * @module infinite-scroll |
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| 275 | * |
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| 276 | * @since 2.2.1 |
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| 277 | * |
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| 278 | * @param WP_Query $wp_the_query WP Query. |
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| 279 | */ |
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| 280 | return apply_filters( 'infinite_scroll_query_object', $wp_the_query ); |
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| 281 | } |
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| 282 | |||
| 283 | /** |
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| 284 | * Has infinite scroll been triggered? |
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| 285 | */ |
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| 286 | static function got_infinity() { |
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| 287 | /** |
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| 288 | * Filter the parameter used to check if Infinite Scroll has been triggered. |
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| 289 | * |
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| 290 | * @module infinite-scroll |
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| 291 | * |
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| 292 | * @since 3.9.0 |
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| 293 | * |
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| 294 | * @param bool isset( $_GET[ 'infinity' ] ) Return true if the "infinity" parameter is set. |
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| 295 | */ |
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| 296 | return apply_filters( 'infinite_scroll_got_infinity', isset( $_GET[ 'infinity' ] ) ); |
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| 297 | } |
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| 298 | |||
| 299 | /** |
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| 300 | * Is this guaranteed to be the last batch of posts? |
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| 301 | */ |
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| 302 | static function is_last_batch() { |
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| 303 | return (bool) ( count( self::wp_query()->posts ) < self::get_settings()->posts_per_page ); |
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| 304 | } |
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| 305 | |||
| 306 | /** |
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| 307 | * The more tag will be ignored by default if the blog page isn't our homepage. |
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| 308 | * Let's force the $more global to false. |
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| 309 | */ |
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| 310 | function preserve_more_tag( $array ) { |
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| 311 | global $more; |
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| 312 | |||
| 313 | if ( self::got_infinity() ) |
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| 314 | $more = 0; //0 = show content up to the more tag. Add more link. |
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| 315 | |||
| 316 | return $array; |
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| 317 | } |
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| 318 | |||
| 319 | /** |
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| 320 | * Add a checkbox field to Settings > Reading |
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| 321 | * for enabling infinite scroll. |
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| 322 | * |
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| 323 | * Only show if the current theme supports infinity. |
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| 324 | * |
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| 325 | * @uses current_theme_supports, add_settings_field, __, register_setting |
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| 326 | * @action admin_init |
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| 327 | * @return null |
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| 328 | */ |
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| 329 | function settings_api_init() { |
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| 330 | if ( ! current_theme_supports( 'infinite-scroll' ) ) |
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| 331 | return; |
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| 332 | |||
| 333 | // Add the setting field [infinite_scroll] and place it in Settings > Reading |
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| 334 | add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . __( 'To infinity and beyond', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' ); |
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| 335 | register_setting( 'reading', self::$option_name_enabled, 'esc_attr' ); |
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| 336 | } |
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| 337 | |||
| 338 | /** |
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| 339 | * HTML code to display a checkbox true/false option |
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| 340 | * for the infinite_scroll setting. |
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| 341 | */ |
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| 342 | function infinite_setting_html() { |
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| 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>'; |
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| 344 | |||
| 345 | // If the blog has footer widgets, show a notice instead of the checkbox |
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| 346 | if ( self::get_settings()->footer_widgets || 'click' == self::get_settings()->requested_type ) { |
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| 347 | echo '<label>' . $notice . '</label>'; |
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| 348 | } else { |
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| 349 | echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$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>'; |
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| 350 | } |
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| 351 | } |
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| 352 | |||
| 353 | /** |
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| 354 | * Does the legwork to determine whether the feature is enabled. |
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| 355 | * |
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| 356 | * @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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| 357 | * @action template_redirect |
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| 358 | * @return null |
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| 359 | */ |
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| 360 | function action_template_redirect() { |
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| 361 | // Check that we support infinite scroll, and are on the home page. |
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| 362 | if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() ) |
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| 363 | return; |
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| 364 | |||
| 365 | $id = self::get_settings()->container; |
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| 366 | |||
| 367 | // Check that we have an id. |
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| 368 | if ( empty( $id ) ) |
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| 369 | return; |
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| 370 | |||
| 371 | // Make sure there are enough posts for IS |
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| 372 | if ( 'click' == self::get_settings()->type && self::is_last_batch() ) |
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| 373 | return; |
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| 374 | |||
| 375 | // Add a class to the body. |
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| 376 | add_filter( 'body_class', array( $this, 'body_class' ) ); |
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| 377 | |||
| 378 | // Add our scripts. |
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| 379 | wp_enqueue_script( 'the-neverending-homepage', plugins_url( 'infinity.js', __FILE__ ), array( 'jquery' ), '4.0.0', true ); |
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| 380 | |||
| 381 | // Add our default styles. |
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| 382 | wp_enqueue_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20140422' ); |
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| 383 | |||
| 384 | add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_spinner_scripts' ) ); |
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| 385 | |||
| 386 | add_action( 'wp_footer', array( $this, 'action_wp_footer_settings' ), 2 ); |
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| 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 |
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| 389 | |||
| 390 | add_filter( 'infinite_scroll_results', array( $this, 'filter_infinite_scroll_results' ), 10, 3 ); |
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| 391 | } |
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| 392 | |||
| 393 | /** |
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| 394 | * Enqueue spinner scripts. |
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| 395 | */ |
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| 396 | function enqueue_spinner_scripts() { |
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| 397 | wp_enqueue_script( 'jquery.spin' ); |
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| 398 | } |
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| 399 | |||
| 400 | /** |
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| 401 | * Adds an 'infinite-scroll' class to the body. |
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| 402 | */ |
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| 403 | function body_class( $classes ) { |
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| 404 | // Do not add infinity-scroll class if disabled through the Reading page |
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| 405 | $disabled = '' === get_option( self::$option_name_enabled ) ? true : false; |
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| 406 | if ( ! $disabled || 'click' == self::get_settings()->type ) { |
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| 407 | $classes[] = 'infinite-scroll'; |
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| 408 | |||
| 409 | if ( 'scroll' == self::get_settings()->type ) |
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| 410 | $classes[] = 'neverending'; |
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| 411 | } |
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| 412 | |||
| 413 | return $classes; |
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| 414 | } |
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| 415 | |||
| 416 | /** |
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| 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 |
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| 418 | * |
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| 419 | * @uses self::wp_query |
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| 420 | * @uses self::get_last_post_date |
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| 421 | * @uses self::has_only_title_matching_posts |
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| 422 | * @return array |
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| 423 | */ |
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| 424 | function get_excluded_posts() { |
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| 425 | |||
| 426 | $excluded_posts = array(); |
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| 427 | //loop through posts returned by wp_query call |
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| 428 | foreach( self::wp_query()->get_posts() as $post ) { |
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| 429 | |||
| 430 | $orderby = isset( self::wp_query()->query_vars['orderby'] ) ? self::wp_query()->query_vars['orderby'] : ''; |
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| 431 | $post_date = ( ! empty( $post->post_date ) ? $post->post_date : false ); |
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| 432 | if ( 'modified' === $orderby || false === $post_date ) { |
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| 433 | $post_date = $post->post_modified; |
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| 434 | } |
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| 435 | |||
| 436 | //in case all posts initially displayed match the keyword by title we add em all to excluded posts array |
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| 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 |
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| 438 | if ( self::has_only_title_matching_posts() || $post_date <= self::get_last_post_date() ) { |
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| 439 | array_push( $excluded_posts, $post->ID ); |
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| 440 | } |
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| 441 | } |
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| 442 | return $excluded_posts; |
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| 443 | } |
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| 444 | |||
| 445 | /** |
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| 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 |
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| 447 | * |
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| 448 | * @uses self::wp_query |
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| 449 | * @uses self::get_excluded_posts |
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| 450 | * @return array |
||
| 451 | */ |
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| 452 | function get_query_vars() { |
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| 453 | |||
| 454 | $query_vars = self::wp_query()->query_vars; |
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| 455 | //applies to search page only |
||
| 456 | if ( true === self::wp_query()->is_search() ) { |
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| 457 | //set post__not_in array in query_vars in case it does not exists |
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| 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() { |
||
| 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 | } |
||
| 1544 |
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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.