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

wp-ultimate-post-grid.php in WP Ultimate Post Grid 1.6, 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: 1.6
7	Author: Bootstrapped Ventures
8	Author URI: http://bootstrapped.ventures
9	License: GPLv3
10	*/
11	define( 'WPUPG_VERSION', '1.6' );
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( 'notices' );
134	$this->helper( 'pagination' );
135	$this->helper( 'plugin_action_link' );
136	$this->helper( 'post_type' );
137	$this->helper( 'support_tab' );
138	$this->helper( 'vafpress_menu' );
139	$this->helper( 'vafpress_shortcode' );
140	$this->helper( 'shortcodes/filter_shortcode' );
141	$this->helper( 'shortcodes/grid_shortcode' );
142
143	// Include required helpers but don't instantiate
144	$this->include_helper( 'addons/addon' );
145	$this->include_helper( 'addons/premium_addon' );
146	$this->include_helper( 'models/grid' );
147
148	// Load core addons
149	$this->helper( 'addon_loader' )->load_addons( $this->coreDir . '/addons' );
150
151	// Load default assets
152	$this->helper( 'assets' );
153	}
154
155	/**
156	* Access a helper. Will instantiate if helper hasn't been loaded before.
157	*/
158	public function helper( $helper )
159	{
160	// Lazy instantiate helper
161	if( !isset( $this->helpers[$helper] ) ) {
162	$this->include_helper( $helper );
163
164	// Get class name from filename
165	$class_name = 'WPUPG';
166
167	$dirs = explode( '/', $helper );
168	$file = end( $dirs );
169	$name_parts = explode( '_', $file );
170	foreach( $name_parts as $name_part ) {
171	$class_name .= '_' . ucfirst( $name_part );
172	}
173
174	// Instantiate class if exists
175	if( class_exists( $class_name ) ) {
176	$this->helpers[$helper] = new $class_name();
177	}
178	}
179
180	// Return helper instance
181	return $this->helpers[$helper];
182	}
183
184	/**
185	* Include a helper. Looks through all helper directories that have been added.
186	*/
187	public function include_helper( $helper )
188	{
189	foreach( $this->helper_dirs as $dir )
190	{
191	$file = $dir . '/'.$helper.'.php';
192
193	if( file_exists( $file ) ) {
194	require_once( $file );
195	}
196	}
197	}
198
199	/**
200	* Add a directory to look for helpers.
201	*/
202	public function add_helper_directory( $dir )
203	{
204	if( is_dir( $dir ) ) {
205	$this->helper_dirs[] = $dir;
206	}
207	}
208
209	/*
210	* Quick access functions
211	*/
212
213	public function template( $template )
214	{
215	return $this->addon( 'custom-templates' )->get_template( $template );
216	}
217	}
218
219	// Premium version is responsible for instantiating if available
220	if( !class_exists( 'WPUltimatePostGridPremium' ) ) {
221	WPUltimatePostGrid::get();
222	}