CHIEFSOFT\ameye
125 lines
3.4 KiB
PHP
125 lines
3.4 KiB
PHP
<?php
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/**
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* Page Templates
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*
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* @package Canvas
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*/
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// If this file is called directly, abort.
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if ( ! defined( 'WPINC' ) ) {
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die;
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}
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/**
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* Module main class.
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*/
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class CNVS_Page_Templates {
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/**
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* The array of templates that this plugin tracks.
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*
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* @var array
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*/
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protected $templates;
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/**
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* Initialize the class and set its properties.
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*/
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public function __construct() {
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$this->templates = array();
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add_filter( 'theme_page_templates', array( $this, 'add_new_template' ) );
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// Add a filter to the page attributes metabox to inject our template into the page template cache.
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add_filter( 'page_attributes_dropdown_pages_args', array( $this, 'register_project_templates' ) );
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// Add a filter to the save post in order to inject out template into the page cache.
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add_filter( 'wp_insert_post_data', array( $this, 'register_project_templates' ) );
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// Add a filter to the template include in order to determine if the page has our template assigned and return it's path.
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add_filter( 'template_include', array( $this, 'view_project_template' ) );
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// Add your templates to this array.
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$this->templates = array(
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'template-canvas-fullwidth.php' => esc_html__( 'Canvas Full Width', 'canvas' ),
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);
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}
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/**
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* Adds our template to the page dropdown
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*
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* @param array $posts_templates The posts templates.
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*/
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public function add_new_template( $posts_templates ) {
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$posts_templates = array_merge( $posts_templates, $this->templates );
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return $posts_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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* @param array $atts The attributes for the page attributes dropdown.
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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. If it doesn't exist, or it's empty prepare an array.
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$templates = wp_cache_get( $cache_key, 'themes' );
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if ( empty( $templates ) ) {
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$templates = array();
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}
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// Since we've updated the cache, we need to delete the old cache.
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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 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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* @param string $template The name of template.
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*/
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public function view_project_template( $template ) {
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global $post;
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// Determines whether the query is for an existing single page.
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if ( ! is_page() ) {
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return $template;
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}
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// If no posts found, return to avoid "Trying to get property of non-object" error.
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if ( ! isset( $post ) ) {
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return $template;
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}
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if ( ! isset( $this->templates[ get_post_meta( $post->ID, '_wp_page_template', true ) ] ) ) {
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return $template;
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}
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$file = CNVS_PATH . 'page-templates/' . get_post_meta( $post->ID, '_wp_page_template', true );
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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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return $template;
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}
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}
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new CNVS_Page_Templates();
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