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<?php
/**
*
*
* @package Hueman
* @since 3.0.0
* @author Nicolas GUILLAUME <nicolas@presscustomizr.com>
* @copyright Copyright (c) 2016, Nicolas GUILLAUME
* @link http://presscustomizr.com/hueman
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/
if ( !class_exists( 'HU_utils' ) ) :
class HU_utils {
//Access any method or var of the class with classname::$instance -> var or method():
static $inst;
public $default_options;
public $db_options;
public $options;//not used in customizer context only
public $is_customizing;
public $hu_options_prefixes;
public static $_theme_setting_list;
function __construct () {
self::$inst =& $this;
//init properties
//when is_admin, the after_setup_theme is fired too late
if ( is_admin() && !hu_is_customizing() ) {
$this -> hu_init_properties();
} else {
add_action( 'after_setup_theme' , array( $this , 'hu_init_properties') );
}
//IMPORTANT : this callback needs to be ran AFTER hu_init_properties.
add_action( 'after_setup_theme', array( $this, 'hu_cache_theme_setting_list' ), 100 );
//Various WP filters for
//content
//thumbnails => parses image if smartload enabled
//title
add_action( 'wp_head' , array( $this , 'hu_wp_filters') );
//refresh the theme options right after the _preview_filter when previewing
add_action( 'customize_preview_init' , array( $this , 'hu_customize_refresh_db_opt' ) );
}//construct
/***************************
* EARLY HOOKS
****************************/
/**
* Init class properties after_setup_theme
* Fixes the bbpress bug : Notice: bbp_setup_current_user was called incorrectly. The current user is being initialized without using $wp->init()
* hu_get_default_options uses is_user_logged_in() => was causing the bug
* hook : after_setup_theme
*
*/
function hu_init_properties() {
//all theme options start by "hu_" by convention
//$this -> hu_options_prefixes = apply_filters('hu_options_prefixes', array('hu_') );
$this -> is_customizing = hu_is_customizing();
$this -> db_options = false === get_option( HU_THEME_OPTIONS ) ? array() : (array)get_option( HU_THEME_OPTIONS );
$this -> default_options = $this -> hu_get_default_options();
$_trans = HU_IS_PRO ? 'started_using_hueman_pro' : 'started_using_hueman';
//What was the theme version when the user started to use Hueman?
//new install = no options yet
//very high duration transient, this transient could actually be an option but as per the wordpress.org themes guidelines, only one option is allowed for the theme settings
if ( !hu_isprevdem() ) {
if ( !get_transient( $_trans ) ) {
set_transient(
$_trans,
sprintf('%s|%s' , count( $this -> db_options ) >= 1 ? 'before' : 'with' , HUEMAN_VER ),
60*60*24*3650
);
}
// Commented since https://github.com/presscustomizr/hueman/issues/775
// was not used anyway since the removal of the welcome note
// if ( !get_transient( 'hu_start_date' ) && class_exists( 'DateTime' ) ) {
// set_transient(
// 'hu_start_date',
// new DateTime("now"),
// 60*60*24*3650
// );
// }
}
//the db updates for retro compat can be done now.
//=> @see functions/init-retro-compat.php
do_action('hu_init_options_done');
}
/* ------------------------------------------------------------------------- *
* CACHE THE LIST OF THEME SETTINGS ONLY
/* ------------------------------------------------------------------------- */
//Fired in __construct()
//Note : the 'sidebar-areas' setting is not listed in that list because registered specifically
function hu_cache_theme_setting_list() {
if ( is_array(self::$_theme_setting_list) && !empty( self::$_theme_setting_list ) )
return;
$_settings_map = HU_utils_settings_map::$instance -> hu_get_customizer_map( null, 'add_setting_control' );
$_settings = array();
foreach ( $_settings_map as $_id => $data ) {
$_settings[] = $_id;
}
//$default_options = HU_utils::$inst -> hu_get_default_options();
self::$_theme_setting_list = $_settings;
}
/***************************
* ON WP_HEAD
****************************/
/**
* hook : wp_head
*/
function hu_wp_filters() {
if ( apply_filters( 'hu_img_smart_load_enabled', !hu_is_ajax() && hu_is_checked('smart_load_img') ) ) {
add_filter( 'the_content' , array( $this , 'hu_parse_imgs' ), PHP_INT_MAX );
add_filter( 'hu_post_thumbnail_html' , array( $this , 'hu_parse_imgs' ) );
}
add_filter( 'wp_title' , array( $this , 'hu_wp_filter_title' ), 10, 2 );
}
/**
* hook : the_content
* Inspired from Unveil Lazy Load plugin : https://wordpress.org/plugins/unveil-lazy-load/ by @marubon
*
* @return string
*/
function hu_parse_imgs( $_html ) {
$_bool = is_feed() || is_preview() || ( wp_is_mobile() && apply_filters('hu_disable_img_smart_load_mobiles', false ) );
if ( apply_filters( 'hu_disable_img_smart_load', $_bool, current_filter() ) )
return $_html;
$allowed_image_extentions = apply_filters( 'hu_smartload_allowed_img_extensions', array(
'bmp',
'gif',
'jpeg',
'jpg',
'jpe',
'tif',
'tiff',
'ico',
'png',
'svg',
'svgz'
) );
if ( empty( $allowed_image_extentions ) || !is_array( $allowed_image_extentions ) ) {
return $_html;
}
$img_extensions_pattern = sprintf( "(?:%s)", implode( '|', $allowed_image_extentions ) );
$pattern = '#<img([^>]+?)src=[\'"]?([^\'"\s>]+\.'.$img_extensions_pattern.'[^\'"\s>]*)[\'"]?([^>]*)>#i';
return preg_replace_callback( $pattern, array( $this , 'hu_regex_callback' ) , $_html);
}
/**
* callback of preg_replace_callback in hu_parse_imgs
* Inspired from Unveil Lazy Load plugin : https://wordpress.org/plugins/unveil-lazy-load/ by @marubon
*
* @return string
*/
private function hu_regex_callback( $matches ) {
$_placeholder = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
if ( false !== strpos( $matches[0], 'data-src' ) || preg_match('/ data-smartload *= *"false" */', $matches[0]) ) {
return $matches[0];
} else {
return apply_filters( 'hu_img_smartloaded',
str_replace( array('srcset=', 'sizes='), array('data-srcset=', 'data-sizes='),
sprintf('<img %1$s src="%2$s" data-src="%3$s" %4$s>',
$matches[1],
$_placeholder,
$matches[2],
$matches[3]
)
)
);
}
}
/**
* Title element formating
* Hook : wp_title
*
*/
function hu_wp_filter_title( $title, $sep ) {
if ( function_exists( '_wp_render_title_tag' ) )
return $title;
global $paged, $page;
if ( is_feed() )
return $title;
// Add the site name.
$title .= get_bloginfo( 'name' );
// Add the site description for the home/front page.
$site_description = get_bloginfo( 'description' , 'display' );
if ( $site_description && hu_is_home() )
$title = "$title $sep $site_description";
// Add a page number if necessary.
if ( $paged >= 2 || $page >= 2 )
$title = "$title $sep " . sprintf( __( 'Page %s' , 'hueman' ), max( $paged, $page ) );
return $title;
}
/****************************************************************************
****************************** OPTIONS **************************************
*****************************************************************************/
/**
* Returns the default options array
*
* @package Hueman
* @since Hueman 3.0.0
*/
function hu_get_default_options() {
$_db_opts = empty($this -> db_options) ? $this -> hu_cache_db_options() : $this -> db_options;
$def_options = isset($_db_opts['defaults']) ? $_db_opts['defaults'] : array();
//Don't update if default options are not empty + customizing context
//customizing out ? => we can assume that the user has at least refresh the default once (because logged in, see conditions below) before accessing the customizer
//customizing => takes into account if user has set a filter or added a new customizer setting
if ( !empty($def_options) && $this -> is_customizing )
return apply_filters( 'hu_default_options', $def_options );
//Never update the defaults when wp_installing()
//prevent issue https://github.com/presscustomizr/hueman/issues/571
//Always update/generate the default option when (OR) :
// 1) current user can edit theme options
// 2) they are not defined
// 3) theme version not defined
// 4) versions are different
if ( !wp_installing() ) {
if ( current_user_can('edit_theme_options') || empty($def_options) || !isset($def_options['ver']) || 0 != version_compare( $def_options['ver'] , HUEMAN_VER ) ) {
$def_options = $this -> hu_generate_default_options( HU_utils_settings_map::$instance -> hu_get_customizer_map( $get_default_option = 'true' ) , HU_THEME_OPTIONS );
//Adds the version in default
$def_options['ver'] = HUEMAN_VER;
//writes the new value in db (merging raw options with the new defaults )
//=> will abort when wp_cache_get() returns false
// => prevent issue https://github.com/presscustomizr/hueman/issues/571
$this -> hu_set_option( 'defaults', $def_options, HU_THEME_OPTIONS );
}
}
return apply_filters( 'hu_default_options', $def_options );
}
/**
* Generates the default options array from a customizer map + add slider option
*
*/
function hu_generate_default_options( $map, $option_group = null ) {
//do we have to look in a specific group of option (plugin?)
$option_group = is_null($option_group) ? HU_THEME_OPTIONS : $option_group;
//initialize the default array with the sliders options
$defaults = array();
foreach ($map['add_setting_control'] as $key => $options) {
$option_name = $key;
//write default option in array
if( array_key_exists( 'default', $options ) ) {
// added check on 'nimblecheck' to fix https://github.com/presscustomizr/customizr/issues/1732
$defaults[$option_name] = in_array( $options['type'], array( 'checkbox', 'nimblecheck' ) ) ? (bool)$options['default'] : $options['default'];
} else {
$defaults[$option_name] = null;
}
}//end foreach
return $defaults;
}
/**
* Returns an option from the options array of the theme.
*
* @package Hueman
*/
function hu_opt( $option_name , $option_group = null, $use_default = true ) {
//do we have to look for a specific group of option (plugin?)
$option_group = is_null( $option_group ) ? HU_THEME_OPTIONS : $option_group;
//when customizing, the db_options property is refreshed each time the preview is refreshed in 'customize_preview_init'
$_db_options = empty($this -> db_options) ? $this -> hu_cache_db_options() : $this -> db_options;
//do we have to use the default ?
$__options = $_db_options;
$_default_val = false;
if ( $use_default ) {
$_defaults = $this -> default_options;
if ( is_array($_defaults) && isset($_defaults[$option_name]) )
$_default_val = $_defaults[$option_name];
$__options = wp_parse_args( $_db_options, $_defaults );
}
//assign false value if does not exist, just like WP does
$_single_opt = isset( $__options[$option_name] ) ? $__options[$option_name] : false;
//allow ctx filtering globally
$_single_opt = apply_filters( "hu_opt" , $_single_opt , $option_name , $option_group, $_default_val );
//allow single option filtering
return apply_filters( "hu_opt_{$option_name}" , $_single_opt , $option_name , $option_group, $_default_val );
}
/**
* Get the saved options in customizer Screen, merge them with the default theme options array and return the updated global options array
*
*/
function hu_get_theme_options ( $option_group = null ) {
//do we have to look in a specific group of option (plugin?)
$option_group = is_null($option_group) ? HU_THEME_OPTIONS : $option_group;
$saved = empty($this -> db_options) ? $this -> hu_cache_db_options() : $this -> db_options;
$defaults = $this -> default_options;
$__options = wp_parse_args( $saved, $defaults );
//$__options = array_intersect_key( $__options, $defaults );
return $__options;
}
/**
* Set an option value in the theme option group
* @param $option_name : string
* @param $option_value : sanitized option value, can be a string, a boolean or an array
* @param $option_group : string ( like hu_theme_options )
* @return void
*
*/
function hu_set_option( $option_name , $option_value, $option_group = null ) {
$option_group = is_null($option_group) ? HU_THEME_OPTIONS : $option_group;
//Get raw to :
//avoid filtering
//avoid merging with defaults
//Reminder : hu_get_raw_option( $opt_name = null, $opt_group = null, $from_cache = true, $report_error = false )
//get the raw option and enabled the wp error report
//=> prevent issue https://github.com/presscustomizr/hueman/issues/571
$_options = $this -> hu_get_unfiltered_theme_options( $option_group );
//Always make sure that getting raw options returns valid data
//For example, when opening wp-activate.php, wp_cache_get( 'alloptions', 'options' ); returns false
//=> which might lead to reset all previous user theme options when using update_option()
// => prevent issue https://github.com/presscustomizr/hueman/issues/571
if ( is_wp_error( $_options ) ) {
error_log( $_options -> get_error_code() );
return;
} else {
$_options[$option_name] = $option_value;
update_option( $option_group, $_options );
}
}
/**
* The purpose of this callback is to refresh and store the theme options in a property on each customize preview refresh
* => preview performance improvement
* 'customize_preview_init' is fired on wp_loaded, once WordPress is fully loaded ( after 'init', before 'wp') and right after the call to 'customize_register'
* This method is fired just after the theme option has been filtered for each settings by the WP_Customize_Setting::_preview_filter() callback
* => if this method is fired before this hook when customizing, the user changes won't be taken into account on preview refresh
*
* hook : customize_preview_init
* @return void
*
*/
function hu_customize_refresh_db_opt(){
$this -> db_options = false === get_option( HU_THEME_OPTIONS ) ? array() : (array)get_option( HU_THEME_OPTIONS );
}
/**
* In live context (not customizing || admin) cache the theme options
*
*/
function hu_cache_db_options($opt_group = null) {
$opt_group = is_null( $opt_group ) ? HU_THEME_OPTIONS : $opt_group;
$this -> db_options = false === get_option( $opt_group ) ? array() : (array)get_option( $opt_group );
return $this -> db_options;
}
//@return an array of options
//This is mostly a copy of the built-in get_option with the difference that
//1) by default retrieves only the theme options
//2) removes the "pre_option_{$name}", "default_option_{$name}", "option_{$name}" filters
//3) doesn't care about the special case when $option in array array('siteurl', 'home', 'category_base', 'tag_base'),
// as they are out of scope here
//
// The filter suppression is specially needed due to:
// a) avoid plugins (qtranslate, other lang plugins) filtering the theme options value, which might mess theme options when we update the options on front
// (e.g. to set the defaults, or to perform our retro compat options updates, or either to set the user started before option)
// b) speed up the theme option retrieval when we are sure we don't need the theme options to be filtered in any case
function hu_get_unfiltered_theme_options( $option = null, $default = array() ) {
$option = is_null($option) ? HU_THEME_OPTIONS : $option;
global $wpdb;
$option_group = trim( $option);
if ( empty( $option ) )
return false;
if ( defined( 'WP_SETUP_CONFIG' ) )
return false;
if ( !wp_installing() ) {
// prevent non-existent options from triggering multiple queries
$notoptions = wp_cache_get( 'notoptions', 'options' );
if ( isset( $notoptions[ $option ] ) ) {
return $default;
}
$alloptions = wp_load_alloptions();
if ( isset( $alloptions[$option] ) ) {
$value = $alloptions[$option];
} else {
$value = wp_cache_get( $option, 'options' );
if ( false === $value ) {
$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
// Has to be get_row instead of get_var because of funkiness with 0, false, null values
if ( is_object( $row ) ) {
$value = $row->option_value;
wp_cache_add( $option, $value, 'options' );
} else { // option does not exist, so we must cache its non-existence
if ( !is_array( $notoptions ) ) {
$notoptions = array();
}
$notoptions[$option] = true;
wp_cache_set( 'notoptions', $notoptions, 'options' );
return $default;
}
}
}
} else {
$suppress = $wpdb->suppress_errors();
$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
$wpdb->suppress_errors( $suppress );
if ( is_object( $row ) ) {
$value = $row->option_value;
} else {
return $default;
}
}
return maybe_unserialize( $value );
}
}//end of class
endif;