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<?php
/*
Plugin Name: Installer
Plugin URI: http://wp-compatibility.com/installer-plugin/
Description: Need help buying, installing and upgrading commercial themes and plugins? **Installer** handles all this for you, right from the WordPress admin. Installer lets you find themes and plugins from different sources, then, buy them from within the WordPress admin. Instead of manually uploading and unpacking, you'll see those themes and plugins available, just like any other plugin you're getting from WordPress.org.
Version: 1.7.3
Author: OnTheGoSystems Inc.     
Author URI: http://www.onthegosystems.com/
*/

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly
}

//It should only be loaded on the admin side
if( !is_admin() ){
    if(!function_exists('WP_Installer_Setup')){ function WP_Installer_Setup(){} }
    $wp_installer_instance = null;
    return;
}

$wp_installer_instance = dirname(__FILE__) . '/installer.php';

// Global stack of instances
global $wp_installer_instances;
$wp_installer_instances[$wp_installer_instance] = array(
    'bootfile'  => $wp_installer_instance,
    'version'   => '1.7.3'
);

/* EXCEPTIONS ********************************************************************************************/
// Exception: When WPML prior 3.2 is used, that instance must be used regardless of another newer instance
// Case 1: WPML loaded before Types - eliminate other instances
if( defined('ICL_SITEPRESS_VERSION') && version_compare(ICL_SITEPRESS_VERSION, '3.2', '<') ) {
    foreach($wp_installer_instances as $key => $instance) {
        if(isset($instance['args']['site_key_nags'])){
            $wp_installer_instances[$key]['version'] = '9.9';
        }else{
            $wp_installer_instances[$key]['version'] = '0';
        }
    }
}

// Exception: Types 1.8.9 (Installer 1.7.0) with WPML before 3.3 (Installer before 1.7.0)
// New products file http://d2salfytceyqoe.cloudfront.net/wpml-products33.json overrides the old one
// while the WPML's instance is being used
// => Force using the new Installer Instance
if( defined('ICL_SITEPRESS_VERSION') && version_compare(ICL_SITEPRESS_VERSION, '3.3.1', '<') ) {

// if Installer 1.7.0+ is present, unregister Installer from old WPML
    // Force Installer 1.7.0+ being used over older Installer versions
    $installer_171_plus_on = false;
    foreach($wp_installer_instances as $key => $instance) {
        if( version_compare( $instance['version'], '1.7.1', '>=' ) ){
            $installer_171_plus_on = true;
            break;
        }
    }

if( $installer_171_plus_on ){
        foreach($wp_installer_instances as $key => $instance) {

if( version_compare( $instance['version'], '1.7.0', '<' ) ){
                unset( $wp_installer_instances[$key] );
            }

}
    }

}

// Exception: When using the embedded plugins module allow the set up to run completely with the
// Installer instance that triggers it
if( isset( $_POST['installer_instance'] ) && isset( $wp_installer_instances[$_POST['installer_instance']] ) ){
    $wp_installer_instances[$_POST['installer_instance']]['version'] = '999';
}
/* EXCEPTIONS ********************************************************************************************/

// Only one of these in the end
remove_action('after_setup_theme', 'wpml_installer_instance_delegator', 1);
add_action('after_setup_theme', 'wpml_installer_instance_delegator', 1);

// When all plugins load pick the newest version
if(!function_exists('wpml_installer_instance_delegator')){
    function wpml_installer_instance_delegator(){
        global $wp_installer_instances;

// version based election
        foreach($wp_installer_instances as $instance){

if(!isset($delegate)){
                $delegate = $instance;
                continue;
            }
            
            if(version_compare($instance['version'], $delegate['version'], '>')){
                $delegate = $instance;    
            }
        }

// priority based election
        $highest_priority = null;
        foreach($wp_installer_instances as $instance) {
            if(isset($instance['args']['high_priority'])){
                if(is_null($highest_priority) || $instance['args']['high_priority'] <= $highest_priority){
                    $highest_priority = $instance['args']['high_priority'];
                    $delegate = $instance;
                }
            }
        }

// Exception: When WPML prior 3.2 is used, that instance must be used regardless of another newer instance
        // Case 2: WPML loaded after Types
        if( defined('ICL_SITEPRESS_VERSION') && version_compare(ICL_SITEPRESS_VERSION, '3.2', '<') ) {
            foreach($wp_installer_instances as $key => $instance) {
                if(isset($instance['args']['site_key_nags'])){
                    $delegate = $instance;
                    $wp_installer_instances = array($key => $delegate); //Eliminate other instances
                    break;
                }
            }
        }

include_once $delegate['bootfile'];
        
        // set configuration
        if(strpos(realpath($delegate['bootfile']), realpath(TEMPLATEPATH)) === 0){
            $delegate['args']['in_theme_folder'] = dirname(ltrim(str_replace(realpath(TEMPLATEPATH), '', realpath($delegate['bootfile'])), '\\/'));            
        }        
        if(isset($delegate['args']) && is_array($delegate['args'])){
            foreach($delegate['args'] as $key => $value){                
                WP_Installer()->set_config($key, $value);                
            }
        }
        
    }
}

if(!function_exists('WP_Installer_Setup')){
    
    // $args:
    // plugins_install_tab = true|false (default: true) 
    // repositories_include = array() (default: all)
    // repositories_exclude = array() (default: none)
    // template = name (default: default)            
    // 
    // Ext function 
    function WP_Installer_Setup($wp_installer_instance, $args = array()){
        global $wp_installer_instances;
        
        $wp_installer_instances[$wp_installer_instance]['args'] = $args;

}
    
}