scholarslab/ivanhoe

<?php
/**
 * Infinite Scroll Administrative Backend
 * @subpackage Admin
 * @package Infinite_Scroll
 */

class Infinite_Scroll_Admin {

    private $parent;

    /**
     * Register hooks with WordPress API
     * @param class $parent (reference) the Parent Class
     */
    function __construct( &$parent ) {

        $this->parent = &$parent;

        add_action( 'admin_menu', array( &$this, 'options_menu_init' ) );
        add_action( 'admin_enqueue_scripts', array( &$this, 'admin_enqueue' ) );

        //upload helpers
        add_filter( 'get_media_item_args', array( &$this, 'send_to_editor'), 10, 1);

    }

    /**
     * Register our menu with WordPress
     */
    function options_menu_init() {
        add_options_page( __( 'Infinite Scroll Options', 'infinite-scroll' ), __( 'Infinite Scroll', 'infinite-scroll' ), 'manage_options', 'infinite_scroll_options', array( &$this, 'options' ) );
    }


    /**
     * Callback to load options template
     */
    function options() {

        //toggle presets page
        $file = isset( $_GET['manage-presets'] ) ? 'manage-presets' : 'options';
        $file = isset( $_GET['submit'] ) ? 'submit' : $file;

        require dirname( $this->parent->file ) . '/templates/' . $file . '.php';
    }

    /**
     * Enqueue admin JS on options page
     */
    function admin_enqueue() {

        if ( get_current_screen()->id != 'settings_page_infinite_scroll_options' && !defined( 'IFRAME_REQUEST' ) )
            return;
        
        $suffix = ( WP_DEBUG || SCRIPT_DEBUG ) ? '.dev' : '';
        $file = "/js/admin/infinite-scroll{$suffix}.js";

        wp_enqueue_script( $this->parent->slug, plugins_url( $file, $this->parent->file ), array( 'jquery', 'media-upload', 'thickbox' ), $this->parent->version, true );
        wp_enqueue_style('thickbox');

        wp_localize_script( $this->parent->slug, $this->parent->slug_, array( 'confirm' => __( 'Are you sure you want to delete the preset "%s"?', 'infinite-scroll' ) ) );

    }
    
    /**
     * If image is sucessfully uploaded, automatically close the editor 
     * and store the image URL in the image input
     * @param array $args the default args
     * @return array the original args, unmodified
     * @uses media_send_to_editor()
     * @uses send_to_editor() (javascript)
     */
    function send_to_editor( $args ) {
        global $wpdb;
        if (isset($GLOBALS['HTTP_POST_FILES']['async-upload'])){
            if ( $args['errors'] !== null )
                return $args;
                
            if ( isset( $_GET['attachment_id'] ) ) {
            
                $id = $_GET['attachment_id'];
                
            //workaround for WP 3.2 non-flash upload
            //not ideal, but works for an edge case
            } else {
            
                //because we can't get the attachment ID at this point, try to pull it from the database
                //look for the most recent parent-less attachment with same title and mime-type
                $upload = $GLOBALS['HTTP_POST_FILES']['async-upload'];
                $title = substr( $upload['name'], 0, strrpos( $upload['name'], '.' ) );
                $id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE post_type = 'attachment' AND post_mime_type = '" . $upload['type'] . "' AND post_parent = '0' AND post_title = '$title' ORDER BY ID DESC LIMIT 1" );
                
                //if for some reason we couldn't pull the ID, simply kick
                //the user will just have to click insert to close the dialog
                if ( !$id )
                    return $args;
            
            }
            
            //rely on WordPress's internal function to output script tags and call send_to_editor()
            media_send_to_editor( wp_get_attachment_url( $id ) );
        }
        return $args;
    }
    
    /**
     * Wrapper function to load the tinyMCE Editor
     * Used to allow fallback to pre-3.3 function
     * @param string $field the field to load the editor for
     */
    function editor( $field ) {

        //3.3
        if ( function_exists( 'wp_editor' ) )
            wp_editor( $this->parent->options->loading[ $field ], "infinite_scroll[loading][{$field}]", array( 'media_buttons' => false, 'textarea_rows' => 5, 'teeny' => true ) );
        
        //3.2
        else
            the_editor( $this->parent->options->loading[ $field ], "infinite_scroll[loading][{$field}]", null, false );
        
    }


}