wp-ultimate-post-grid / wp-ultimate-post-grid.php

wp-ultimate-post-grid.php in WP Ultimate Post Grid 1.7, at wp-ultimate-post-grid.php

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1	<?php
2	/*
3	Plugin Name: WP Ultimate Post Grid
4	Plugin URI: http://bootstrapped.ventures/wp-ultimate-post-grid/
5	Description: Easily create filterable grids for any of your posts, pages or custom post types
6	Version: 1.7
7	Author: Bootstrapped Ventures
8	Author URI: http://bootstrapped.ventures
9	License: GPLv3
10	*/
11	define( 'WPUPG_VERSION', '1.7' );
12	define( 'WPUPG_POST_TYPE', 'wpupg_grid' );
13
14	class WPUltimatePostGrid {
15
16	private static $instance;
17	private static $instantiated_by_premium;
18	private static $addons = array();
19
20	/**
21	* Return instance of self
22	*/
23	public static function get( $instantiated_by_premium = false )
24	{
25	// Instantiate self only once
26	if( is_null( self::$instance ) ) {
27	self::$instantiated_by_premium = $instantiated_by_premium;
28	self::$instance = new self;
29	self::$instance->init();
30	}
31
32	return self::$instance;
33	}
34
35	/**
36	* Returns true if we are using the Premium version
37	*/
38	public static function is_premium_active()
39	{
40	return self::$instantiated_by_premium;
41	}
42
43	/**
44	* Add loaded addon to array of loaded addons
45	*/
46	public static function loaded_addon( $addon, $instance )
47	{
48	if( !array_key_exists( $addon, self::$addons ) ) {
49	self::$addons[$addon] = $instance;
50	}
51	}
52
53	/**
54	* Returns true if the specified addon has been loaded
55	*/
56	public static function is_addon_active( $addon )
57	{
58	return array_key_exists( $addon, self::$addons );
59	}
60
61	public static function addon( $addon )
62	{
63	if( isset( self::$addons[$addon] ) ) {
64	return self::$addons[$addon];
65	}
66
67	return false;
68	}
69
70	/**
71	* Access a VafPress option with optional default value
72	*/
73	public static function option( $name, $default = null )
74	{
75	$option = vp_option( 'wpupg_option.' . $name );
76
77	return is_null( $option ) ? $default : $option;
78	}
79
80
81	public $pluginName = 'wp-ultimate-post-grid';
82	public $coreDir;
83	public $corePath;
84	public $coreUrl;
85	public $pluginFile;
86
87	protected $helper_dirs = array();
88	protected $helpers = array();
89
90	/**
91	* Initialize
92	*/
93	public function init()
94	{
95	// Load external libraries
96	if( !class_exists( 'VP_AutoLoader' ) ) {
97	require_once( 'vendor/vafpress/bootstrap.php' );
98	}
99
100	// Update plugin version
101	update_option( $this->pluginName . '_version', WPUPG_VERSION );
102
103	// Set core directory, URL and main plugin file
104	$this->corePath = str_replace( '/wp-ultimate-post-grid.php', '', plugin_basename( __FILE__ ) );
105	$this->coreDir = apply_filters( 'wpupg_core_dir', WP_PLUGIN_DIR . '/' . $this->corePath );
106	$this->coreUrl = apply_filters( 'wpupg_core_url', plugins_url() . '/' . $this->corePath );
107	$this->pluginFile = apply_filters( 'wpupg_plugin_file', __FILE__ );
108
109	// Load textdomain
110	if( !self::is_premium_active() ) {
111	$domain = 'wp-ultimate-post-grid';
112	$locale = apply_filters( 'plugin_locale', get_locale(), $domain );
113
114	load_textdomain( $domain, WP_LANG_DIR.'/'.$domain.'/'.$domain.'-'.$locale.'.mo' );
115	load_plugin_textdomain( $domain, false, $this->corePath . '/lang/' );
116	}
117
118	// Add core helper directory
119	$this->add_helper_directory( $this->coreDir . '/helpers' );
120
121	// Migrate first if needed
122	$this->helper( 'migration' );
123
124	// Load required helpers
125	$this->helper( 'activate' );
126	$this->helper( 'ajax' );
127	$this->helper( 'content' );
128	$this->helper( 'css' );
129	$this->helper( 'faq' );
130	$this->helper( 'grid_cache' );
131	$this->helper( 'grid_save' );
132	$this->helper( 'meta_box' );
133	$this->helper( 'meta_box_post' );
134	$this->helper( 'notices' );
135	$this->helper( 'pagination' );
136	$this->helper( 'plugin_action_link' );
137	$this->helper( 'post_save' );
138	$this->helper( 'post_type' );
139	$this->helper( 'support_tab' );
140	$this->helper( 'vafpress_menu' );
141	$this->helper( 'vafpress_shortcode' );
142	$this->helper( 'shortcodes/filter_shortcode' );
143	$this->helper( 'shortcodes/grid_shortcode' );
144
145	// Include required helpers but don't instantiate
146	$this->include_helper( 'addons/addon' );
147	$this->include_helper( 'addons/premium_addon' );
148	$this->include_helper( 'models/grid' );
149
150	// Load core addons
151	$this->helper( 'addon_loader' )->load_addons( $this->coreDir . '/addons' );
152
153	// Load default assets
154	$this->helper( 'assets' );
155	}
156
157	/**
158	* Access a helper. Will instantiate if helper hasn't been loaded before.
159	*/
160	public function helper( $helper )
161	{
162	// Lazy instantiate helper
163	if( !isset( $this->helpers[$helper] ) ) {
164	$this->include_helper( $helper );
165
166	// Get class name from filename
167	$class_name = 'WPUPG';
168
169	$dirs = explode( '/', $helper );
170	$file = end( $dirs );
171	$name_parts = explode( '_', $file );
172	foreach( $name_parts as $name_part ) {
173	$class_name .= '_' . ucfirst( $name_part );
174	}
175
176	// Instantiate class if exists
177	if( class_exists( $class_name ) ) {
178	$this->helpers[$helper] = new $class_name();
179	}
180	}
181
182	// Return helper instance
183	return $this->helpers[$helper];
184	}
185
186	/**
187	* Include a helper. Looks through all helper directories that have been added.
188	*/
189	public function include_helper( $helper )
190	{
191	foreach( $this->helper_dirs as $dir )
192	{
193	$file = $dir . '/'.$helper.'.php';
194
195	if( file_exists( $file ) ) {
196	require_once( $file );
197	}
198	}
199	}
200
201	/**
202	* Add a directory to look for helpers.
203	*/
204	public function add_helper_directory( $dir )
205	{
206	if( is_dir( $dir ) ) {
207	$this->helper_dirs[] = $dir;
208	}
209	}
210
211	/*
212	* Quick access functions
213	*/
214
215	public function template( $template )
216	{
217	return $this->addon( 'custom-templates' )->get_template( $template );
218	}
219	}
220
221	// Premium version is responsible for instantiating if available
222	if( !class_exists( 'WPUltimatePostGridPremium' ) ) {
223	WPUltimatePostGrid::get();
224	}