rtProgress::progress PHP Méthode

    public function progress($progress, $total)
    {
        if ($total < 1) {
            return 100;
        }
        return $progress / $total * 100;
    }

    function init()
    {
        $prog = new rtProgress();
        $pending = $this->get_pending_count();
        $total = $this->get_total_count();
        $done = $total - $pending;
        ?>
		<div class="wrap">
			<h2>rtMedia: Import Media Size</h2>
			<?php 
        wp_nonce_field('rtmedia_media_size_import_nonce', 'rtmedia_media_size_import_nonce');
        echo '<span class="pending">' . rtmedia_migrate_formatseconds($total - $done) . ' (estimated)</span><br />';
        echo '<span class="finished">' . $done . '</span>/<span class="total">' . $total . '</span>';
        echo '<img src="images/loading.gif" alt="syncing" id="rtMediaSyncing" style="display:none" />';
        $temp = $prog->progress($done, $total);
        $prog->progress_ui($temp, true);
        ?>
			<script type="text/javascript">
				var fail_id = new Array();
				var ajax_data;
				jQuery( document ).ready( function ( e ) {
					jQuery( "#toplevel_page_rtmedia-settings" ).addClass( "wp-has-current-submenu" )
					jQuery( "#toplevel_page_rtmedia-settings" ).removeClass( "wp-not-current-submenu" )
					jQuery( "#toplevel_page_rtmedia-settings" ).addClass( "wp-menu-open" )
					jQuery( "#toplevel_page_rtmedia-settings>a" ).addClass( "wp-menu-open" )
					jQuery( "#toplevel_page_rtmedia-settings>a" ).addClass( "wp-has-current-submenu" )
					if ( db_total < 1 )
						jQuery( "#submit" ).attr( 'disabled', "disabled" );
				} )
				function db_start_migration( db_done, db_total, last_id ) {

					if ( db_done < db_total ) {
						jQuery( "#rtMediaSyncing" ).show();
						ajax_data = {
							"action": "rtmedia_media_size_import",
							"done": db_done,
							"last_id": last_id,
							"nonce" : jQuery.trim( jQuery( '#rtmedia_media_size_import_nonce' ).val() )
						}
						jQuery.ajax( {
							url: rtmedia_admin_ajax,
							type: 'post',
							data: ajax_data,
							success: function ( sdata ) {

								try {
									data = JSON.parse( sdata );
								} catch ( e ) {
									jQuery( "#submit" ).attr( 'disabled', "" );
								}
								if ( data.status ) {
									done = parseInt( data.done );
									total = parseInt( data.total );
									var progw = Math.ceil( (done / total) * 100 );
									if ( progw > 100 ) {
										progw = 100;
									}
									;
									jQuery( '#rtprogressbar>div' ).css( 'width', progw + '%' );
									jQuery( 'span.finished' ).html( done );
									jQuery( 'span.total' ).html( total );
									jQuery( 'span.pending' ).html( data.pending );
									if ( data.imported === false ) {
										fail_id.push( data.media_id );
									}
									db_start_migration( done, total, parseInt( data.media_id ) );
								} else {
									alert( "Migration completed." );
									jQuery( "#rtMediaSyncing" ).hide();
								}
							},
							error: function () {
								alert( "Error During Migration, Please Refresh Page then try again" );
								jQuery( "#submit" ).removeAttr( 'disabled' );
							}
						} );
					} else {
						alert( "Migration completed." );
						if ( fail_id.length > 0 ) {
							rtm_show_file_error();
						}
						jQuery( "#rtMediaSyncing" ).hide();
					}
				}
				function rtm_show_file_error() {
					jQuery( 'span.pending' ).html( "Media with ID: " + fail_id.join( ', ' ) + " can not be imported. Please check your server error log for more details. Don't worry, you can end importing media size now :)" );
		//			var data = {action: 'rtmedia_hide_media_size_import_notice'};
		//			jQuery.post( ajaxurl, data, function ( response ) { } );
		//			jQuery( "#rtMediaSyncing" ).hide();
				}
				var db_done = <?php 
        echo $done;
        ?>
;
				var db_total = <?php 
        echo $total;
        ?>
;
				jQuery( document ).on( 'click', '#submit', function ( e ) {
					e.preventDefault();
					db_start_migration( db_done, db_total, 0 );
					jQuery( this ).attr( 'disabled', 'disabled' );
				} );
			</script>
			<hr/>
			<?php 
        if (!(isset($rtmedia_error) && true === $rtmedia_error)) {
            ?>
				<input type="button" id="submit" value="start" class="button button-primary"/>
			<?php 
        }
        ?>
		</div>
	<?php 
    }