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172 lines
4.0 KiB
172 lines
4.0 KiB
<?php
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/**
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* @author ThemePunch <info@themepunch.com>
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* @link https://www.themepunch.com/
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* @copyright 2022 ThemePunch
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*/
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if( !defined( 'ABSPATH') ) exit();
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class RevSliderPageTemplate {
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/**
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* A reference to an instance of this class.
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*/
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private static $instance;
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/**
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* The array of templates that this plugin tracks.
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*/
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protected $templates;
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/**
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* Returns an instance of this class.
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*/
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public static function get_instance() {
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if( null == self::$instance ) {
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self::$instance = new RevSliderPageTemplate();
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}
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return self::$instance;
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}
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/**
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* Initializes the plugin by setting filters and administration functions.
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*/
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private function __construct() {
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$this->templates = array();
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// Add a filter to the attributes metabox to inject template into the cache.
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add_filter(
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'page_attributes_dropdown_pages_args',
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array( $this, 'register_project_templates' )
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);
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// Add a filter to the save post to inject out template into the page cache
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add_filter(
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'wp_insert_post_data',
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array( $this, 'register_project_templates' )
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);
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// Add a filter to the template include to determine if the page has our
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// template assigned and return it's path
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add_filter(
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'template_include',
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array( $this, 'view_project_template')
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);
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// Add your templates to this array.
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$this->templates = array(
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'../public/views/revslider-page-template.php' => 'Slider Revolution Blank Template',
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);
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// Fix for WP 4.7
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add_filter( 'theme_page_templates', array($this, 'register_project_templates_new' ) );
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// Add filters to the attributes metabox to inject templates to all posts
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$types = get_post_types( [], 'objects' );
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foreach ( $types as $type => $values ) {
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if ( isset( $type ) ) {
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$type_name = 'theme_' . $type . '_templates';
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add_filter( $type_name , array( $this, 'add_post_templates' ));
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}
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}
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}
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// Adds our template to the new post templates setting (WP >= 4.7)
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public function register_project_templates_new( $post_templates ) {
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$post_templates = array_merge( $post_templates, $this->templates );
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return $post_templates;
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}
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public function add_post_templates( $templates ) {
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$my_virtual_templates = array(
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'../public/views/revslider-page-template.php' => 'Slider Revolution Blank Template',
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);
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// Merge with any templates already available
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$templates = array_merge( $templates, $my_virtual_templates );
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return $templates;
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}
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/**
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* Adds our template to the pages cache in order to trick WordPress
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* into thinking the template file exists where it doens't really exist.
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*
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*/
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public function register_project_templates( $atts ) {
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// Create the key used for the themes cache
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$cache_key = 'page_templates-' . md5( get_theme_root() . '/' . get_stylesheet() );
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// Retrieve the cache list.
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// If it doesn't exist, or it's empty prepare an array
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$templates = wp_get_theme()->get_page_templates();
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if ( empty( $templates ) ) {
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$templates = array();
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}
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// New cache, therefore remove the old one
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wp_cache_delete( $cache_key , 'themes');
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// Now add our template to the list of templates by merging our templates
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// with the existing templates array from the cache.
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$templates = array_merge( $templates, $this->templates );
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// Add the modified cache to allow WordPress to pick it up for listing
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// available templates
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wp_cache_add( $cache_key, $templates, 'themes', 1800 );
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return $atts;
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}
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/**
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* Checks if the template is assigned to the page
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*/
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public function view_project_template( $template ) {
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global $post;
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if(!isset($post->ID)) return $template;
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if (!isset($this->templates[get_post_meta(
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$post->ID, '_wp_page_template', true
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)] ) ) {
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return $template;
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}
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$file = plugin_dir_path(__FILE__). get_post_meta(
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$post->ID, '_wp_page_template', true
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);
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// Just to be safe, we check if the file exist first
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if( file_exists( $file ) ) {
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return $file;
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}
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else { echo $file; }
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return $template;
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}
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} |