resources/src/mediawiki/mediawiki.log.js

   1 /*!
   2  * Logger for MediaWiki javascript.
   3  * Implements the stub left by the main 'mediawiki' module.
   4  *
   5  * @author Michael Dale <mdale@wikimedia.org>
   6  * @author Trevor Parscal <tparscal@wikimedia.org>
   7  */
   8
   9 ( function ( mw, $ ) {
  10
  11         // Keep reference to the dummy placeholder from mediawiki.js
  12         // The root is replaced below, but it has other methods that we need to restore.
  13         var original = mw.log,
  14                 slice = Array.prototype.slice;
  15
  16         mw.log = function () {
  17                 // Turn arguments into an array
  18                 var args = slice.call( arguments ),
  19                         // Allow log messages to use a configured prefix to identify the source window (ie. frame)
  20                         prefix = mw.config.exists( 'mw.log.prefix' ) ? mw.config.get( 'mw.log.prefix' ) + '> ' : '';
  21
  22                 // Try to use an existing console
  23                 // Generally we can cache this, but in this case we want to re-evaluate this as a
  24                 // global property live so that things like Firebug Lite can take precedence.
  25                 if ( window.console && window.console.log && window.console.log.apply ) {
  26                         args.unshift( prefix );
  27                         window.console.log.apply( window.console, args );
  28                         return;
  29                 }
  30
  31                 // If there is no console, use our own log box
  32                 mw.loader.using( 'jquery.footHovzer', function () {
  33
  34                         var     hovzer,
  35                                 d = new Date(),
  36                                 // Create HH:MM:SS.MIL timestamp
  37                                 time = ( d.getHours() < 10 ? '0' + d.getHours() : d.getHours() ) +
  38                                         ':' + ( d.getMinutes() < 10 ? '0' + d.getMinutes() : d.getMinutes() ) +
  39                                         ':' + ( d.getSeconds() < 10 ? '0' + d.getSeconds() : d.getSeconds() ) +
  40                                         '.' + ( d.getMilliseconds() < 10 ? '00' + d.getMilliseconds() : ( d.getMilliseconds() < 100 ? '0' + d.getMilliseconds() : d.getMilliseconds() ) ),
  41                                 $log = $( '#mw-log-console' );
  42
  43                         if ( !$log.length ) {
  44                                 $log = $( '<div id="mw-log-console"></div>' ).css( {
  45                                         overflow: 'auto',
  46                                         height: '150px',
  47                                         backgroundColor: 'white',
  48                                         borderTop: 'solid 2px #ADADAD'
  49                                 } );
  50                                 hovzer = $.getFootHovzer();
  51                                 hovzer.$.append( $log );
  52                                 hovzer.update();
  53                         }
  54                         $log.append(
  55                                 $( '<div>' )
  56                                         .css( {
  57                                                 borderBottom: 'solid 1px #DDDDDD',
  58                                                 fontSize: 'small',
  59                                                 fontFamily: 'monospace',
  60                                                 whiteSpace: 'pre-wrap',
  61                                                 padding: '0.125em 0.25em'
  62                                         } )
  63                                         .text( prefix + args.join( ', ' ) )
  64                                         .prepend( '<span style="float: right;">[' + time + ']</span>' )
  65                         );
  66                 } );
  67         };
  68
  69         // Restore original methods
  70         mw.log.warn = original.warn;
  71         mw.log.error = original.error;
  72         mw.log.deprecate = original.deprecate;
  73
  74 }( mediaWiki, jQuery ) );