resources/src/mediawiki.action/mediawiki.action.history.js

   1 /*!
   2  * JavaScript for History action
   3  */
   4 jQuery( function ( $ ) {
   5         var     $historyCompareForm = $( '#mw-history-compare' ),
   6                 $historySubmitter,
   7                 $lis = $( '#pagehistory > li' );
   8
   9         /**
  10          * @ignore
  11          * @context {Element} input
  12          * @param {jQuery.Event} e
  13          * @return {boolean} False to cancel the default event
  14          */
  15         function updateDiffRadios() {
  16                 var nextState = 'before',
  17                         $li,
  18                         $inputs,
  19                         $oldidRadio,
  20                         $diffRadio;
  21
  22                 if ( !$lis.length ) {
  23                         return true;
  24                 }
  25
  26                 $lis
  27                 .each( function () {
  28                         $li = $( this );
  29                         $inputs = $li.find( 'input[type="radio"]' );
  30                         $oldidRadio = $inputs.filter( '[name="oldid"]' ).eq( 0 );
  31                         $diffRadio = $inputs.filter( '[name="diff"]' ).eq( 0 );
  32
  33                         $li.removeClass( 'selected between before after' );
  34
  35                         if ( !$oldidRadio.length || !$diffRadio.length ) {
  36                                 return true;
  37                         }
  38
  39                         if ( $oldidRadio.prop( 'checked' ) ) {
  40                                 $li.addClass( 'selected after' );
  41                                 nextState = 'after';
  42                         } else if ( $diffRadio.prop( 'checked' ) ) {
  43                                 $li.addClass( 'selected ' + nextState );
  44                                 nextState = 'between';
  45                         } else {
  46                                 // This list item has neither checked
  47                                 // apply the appropriate class following the previous item.
  48                                 $li.addClass( nextState );
  49                         }
  50                 } );
  51
  52                 return true;
  53         }
  54
  55         $lis.find( 'input[name="diff"], input[name="oldid"]' ).click( updateDiffRadios );
  56
  57         // Set initial state
  58         updateDiffRadios();
  59
  60         // Prettify url output for HistoryAction submissions,
  61         // to cover up action=historysubmit construction.
  62
  63         // Ideally we'd use e.target instead of $historySubmitter, but e.target points
  64         // to the form element for submit actions, so.
  65         $historyCompareForm.find( '.historysubmit' ).click( function () {
  66                 $historySubmitter = $( this );
  67         } );
  68
  69         // On submit we clone the form element, remove unneeded fields in the clone
  70         // that pollute the query parameter with stuff from the other "use case",
  71         // and then submit the clone.
  72         // Without the cloning we'd be changing the real form, which is slower, could make
  73         // the page look broken for a second in slow browsers and might show the form broken
  74         // again when coming back from a "next" page.
  75         $historyCompareForm.submit( function ( e ) {
  76                 var     $copyForm, $copyRadios, $copyAction;
  77
  78                 if ( $historySubmitter ) {
  79                         $copyForm = $historyCompareForm.clone();
  80                         $copyRadios = $copyForm.find( '#pagehistory > li' ).find( 'input[name="diff"], input[name="oldid"]' );
  81                         $copyAction = $copyForm.find( '> [name="action"]' );
  82
  83                         // Remove action=historysubmit and ids[..]=..
  84                         if ( $historySubmitter.hasClass( 'mw-history-compareselectedversions-button' ) ) {
  85                                 $copyAction.remove();
  86                                 $copyForm.find( 'input[name^="ids["]:checked' ).prop( 'checked', false );
  87
  88                         // Remove diff=&oldid=, change action=historysubmit to revisiondelete, remove revisiondelete
  89                         } else if ( $historySubmitter.hasClass( 'mw-history-revisiondelete-button' ) ||
  90                                         $historySubmitter.hasClass( 'mw-history-editchangetags-button' ) ) {
  91                                 $copyRadios.remove();
  92                                 $copyAction.val( $historySubmitter.attr( 'name' ) );
  93                                 $copyForm.find( ':submit' ).remove();
  94                         }
  95
  96                         // IE7 doesn't do submission from an off-DOM clone, so insert hidden into document first
  97                         // Also remove potentially conflicting id attributes that we don't need anyway
  98                         $copyForm
  99                                 .css( 'display', 'none' )
 100                                 .find( '[id]' )
 101                                         .removeAttr( 'id' )
 102                                 .end()
 103                                 .insertAfter( $historyCompareForm )
 104                                 .submit();
 105
 106                         e.preventDefault();
 107                         return false; // Because the submit is special, return false as well.
 108                 }
 109
 110                 // Continue natural browser handling other wise
 111                 return true;
 112         } );
 113 } );