- moving ajax script outside plugin class, as a js file
- wip trying to use the wordpress image editor
This commit is contained in:
asus
261
plugins/fipfcard_plugin/utils/plugin_tools.php
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261
plugins/fipfcard_plugin/utils/plugin_tools.php
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<?php
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/**
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* include those two lines at the top of the main plugin file
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*
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* include_once( plugin_dir_path(__FILE__) . '/php/utils/plugin_tools.php');
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* PLGNTLS_class::set_root_dir( plugin_dir_path(__FILE__), plugin_dir_url(__FILE__) );
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*
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* PLGNTLS means PLUGIN TOOLS
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*/
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class PLGNTLS_class
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{
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private static $_root_path;
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private static $_root_url;
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private static $_ajax_already_there;
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private $_first_script;
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private $_prefix;
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private $_js_dependencies;
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private $_css_dependencies;
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/**
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*/
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public function __construct() {
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if (! isset( self::$_ajax_already_there ))
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self::$_ajax_already_there = false;
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$this->_prefix = "PLGNTLS";
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$this->_first_script = null;
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$this->_js_dependencies = array();
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$this->_css_dependencies = array();
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}
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/**
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* can be used before class is instanciated :
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* PLGNTLS_class::set_root_dir( plugin_dir_path(__FILE__), plugin_dir_url(__FILE__) );
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*/
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public static function set_root_dir($path, $url) {
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if (isset( self::$_root_path ))
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return ;
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if (isset( self::$_root_url ))
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return ;
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self::$_root_path = $path;
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self::$_root_url = $url;
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}
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public static function get_path() {
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return(self::$_root_path);
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}
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public static function get_url() {
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return(self::$_root_url);
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}
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public function add_to_front($files_arr = null, $vars = null) {
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if (!is_null($files_arr))
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{
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// add ajax file at beginning of files list
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array_unshift($files_arr, "utils/plugin_ajax.js");
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$nonce = array("ajax_nonce" => wp_create_nonce('wp-pageviews-nonce'));
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$url = array("ajax_url" => admin_url('admin-ajax.php'));
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$vars = array_merge($vars, $nonce);
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$vars = array_merge($vars, $url);
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}
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$files = array();
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foreach($files_arr as $key => $file_name) {
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$files[] = $this->init_file($key, $file_name);
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}
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if (!is_null($files_arr))
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$this->add_files_to_front($files);
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if (!is_null($vars))
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$this->add_vars_to_front($vars);
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return $this->create_html($files, $vars);
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}
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/**
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* PRIVATES FUNCTIONS
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*/
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/**
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* @param two arguments :
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* 1. html files to include in front
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* - can be a string of 1 filename
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* - or an array of strings of filenames
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* ( https://stackoverflow.com/q/4747876/9497573 )
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* - it's probably better to only add 1 file, and let it include other files
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* 2. list of variables to make available to this files
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* - in the form of key => val
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* - recommanded to do it with compact()
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* ex: create_html( "file.html", compact("var1","var2",) );
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* ex: create_html( array("file1.html", "file2.html"), array("var1"=>"value") );
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* @return a string of html code
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*
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* using ob_start() and ob_get_clean()
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* allows to have php expansion inside the html loaded
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* in opposition to the methode file_get_contents()
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*
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* https://stackoverflow.com/a/4402045/9497573
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*/
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private function create_html($files = null, $vars = null) {
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if (is_null($files))
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return null;
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$plgn_dir = $this->get_path();
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if (!is_null($vars))
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extract($vars);
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ob_start();
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foreach($files as $file) {
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if ($file->ext === 'html')
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include($file->path);
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}
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$html = ob_get_clean();
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return $html;
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}
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/**
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* pass variables to js front as global variables
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* @param array : list of key => value
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* with the key being name of the variable, like this :
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* 'my_var' => 'value',
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* simpler way to do it is to use compact when calling the function :
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* add_var_to_front(compact("var1", "var2", "var3"));
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* @param string (optionnal) : name of first embended script that need these variables
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* (it will be available to this script and all followings)
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* this name is the filename + "_" + extension :
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* init.js -> init_js
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*/
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private function add_vars_to_front($vars_arr)
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{
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if (is_null($this->_first_script))
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return ;
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if (is_null($vars_arr))
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return ;
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$handle = $this->_first_script;
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$object_name = $this->_prefix . "_data";
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$vars_json = json_encode($vars_arr);
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$front = "let $object_name = $vars_json;";
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wp_add_inline_script($handle, $front, 'before');
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}
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/**
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* @param array : list of files :
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* - with their path from root of their type of file (ex: from js/ to .js files)
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* - and with their extension
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* @param boolean
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* - to add ajax script and variables
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* - default to true
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*/
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private function add_files_to_front($files_arr) {
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//wp_enqueue_script(<give_it_a_name>, /url/to/file, [depends on], version, defer? );
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//wp_enqueue_style( <give_it_a_name>, /url/to/file, [depends on], version, media );
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$previous_css_basename = '';
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$previous_js_basename = '';
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foreach ($files_arr as $file) {
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if ($file->ext === "js") {
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if (is_null($this->_first_script))
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$this->_first_script = $file->handle;
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$depends_on = $this->check_dependencies($file, $previous_js_basename);
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if ($depends_on !== null)
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wp_enqueue_script( $file->handle, $file->url, $depends_on, $file->version, true);
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$previous_js_basename = $file->handle;
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}
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else if ($file->ext === "css") {
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$depends_on = $this->check_dependencies($file, $previous_css_basename);
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if ($depends_on !== null)
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wp_enqueue_style( $file->handle, $file->url, $depends_on, $file->version, '');
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$previous_css_basename = $file->handle;
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}
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}
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}
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private function check_dependencies(&$file, $previous_basename)
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{
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if ($file->ext === "js")
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{
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global $wp_scripts;
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$already_enqueued = array_search($file->handle, $wp_scripts->queue);
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if ($already_enqueued !== false)
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return null;
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}
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else if ($file->ext === "css")
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{
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global $wp_styles;
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$already_enqueued = array_search($file->handle, $wp_styles->queue);
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if ($already_enqueued !== false)
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return null;
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}
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$depends_on = array();
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if (isset($file->depends) && $file->depends !== '')
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$depends_on[] = $file->depends;
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if (isset($previous_basename) && $previous_basename !== '')
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$depends_on[] = $previous_basename;
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return $depends_on;
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}
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/**
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* @param string : name of the file, with its path from its extension directory
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* - from js/ root for .js files
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* - from css/ root for .css files
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* @return object / null :
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* - null if file is not js or css
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* - or an object with all the necessary infos :
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* - ext : name.js -> "js"
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* - basename : name.js -> "name"
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* - handle : name.js -> "name_js"
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* - url : url to file in wordpress
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* - path : path to file in server
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* - version : used to avoid browser caching
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* - depends : string if depends on a handle, or ''
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*/
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private function init_file($key, $file_name) {
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$file = (object)[];
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$file->ext = pathinfo($file_name, PATHINFO_EXTENSION);
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if (! in_array($file->ext, array("js", "css", "html")))
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return null;
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$file->basename = pathinfo($file_name, PATHINFO_BASENAME);
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$file->handle = "PLGNTLS_" . str_replace(".", "_", $file->basename);
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$file->url = $this->get_url().$file_name;
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$file->path = $this->get_path().$file_name;
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$file->version = date("ymd-Gis", filemtime($file->path));
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$file->depends = '';
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if (is_string($key))
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$file->depends = $key;
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return $file;
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}
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}
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?>
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