resources/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 = $( '#pagehistory > li' );
   8
   9         /**
  10          * @context {Element} input
  11          * @param e {jQuery.Event}
  12          */
  13         function updateDiffRadios() {
  14                 var diffLi = false, // the li where the diff radio is checked
  15                         oldLi = false; // the li where the oldid radio is checked
  16
  17                 if ( !$lis.length ) {
  18                         return true;
  19                 }
  20
  21                 $lis
  22                 .removeClass( 'selected' )
  23                 .each( function () {
  24                         var     $li = $(this),
  25                                 $inputs = $li.find( 'input[type="radio"]' ),
  26                                 $oldidRadio = $inputs.filter( '[name="oldid"]' ).eq(0),
  27                                 $diffRadio = $inputs.filter( '[name="diff"]' ).eq(0);
  28
  29                         if ( !$oldidRadio.length || !$diffRadio.length ) {
  30                                 return true;
  31                         }
  32
  33                         if ( $oldidRadio.prop( 'checked' ) ) {
  34                                 oldLi = true;
  35                                 $li.addClass( 'selected' );
  36                                 $oldidRadio.css( 'visibility', 'visible' );
  37                                 $diffRadio.css( 'visibility', 'hidden' );
  38
  39                         } else if ( $diffRadio.prop( 'checked' ) ) {
  40                                 diffLi = true;
  41                                 $li.addClass( 'selected' );
  42                                 $oldidRadio.css( 'visibility', 'hidden' );
  43                                 $diffRadio.css( 'visibility', 'visible' );
  44
  45                         // This list item has neither checked
  46                         } else {
  47                                 // We're below the selected radios
  48                                 if ( diffLi && oldLi ) {
  49                                         $oldidRadio.css( 'visibility', 'visible' );
  50                                         $diffRadio.css( 'visibility', 'hidden' );
  51
  52                                 // We're between the selected radios
  53                                 } else if ( diffLi ) {
  54                                         $diffRadio.css( 'visibility', 'visible' );
  55                                         $oldidRadio.css( 'visibility', 'visible' );
  56
  57                                 // We're above the selected radios
  58                                 } else {
  59                                         $diffRadio.css( 'visibility', 'visible' );
  60                                         $oldidRadio.css( 'visibility', 'hidden' );
  61                                 }
  62                         }
  63                 });
  64
  65                 return true;
  66         }
  67
  68         $lis.find( 'input[name="diff"], input[name="oldid"]' ).click( updateDiffRadios );
  69
  70         // Set initial state
  71         updateDiffRadios();
  72
  73
  74         // Prettify url output for HistoryAction submissions,
  75         // to cover up action=historysubmit construction.
  76
  77         // Ideally we'd use e.target instead of $historySubmitter, but e.target points
  78         // to the form element for submit actions, so.
  79         $historyCompareForm.find( '.historysubmit' ).click( function () {
  80                 $historySubmitter = $(this);
  81         } );
  82
  83         // On submit we clone the form element, remove unneeded fields in the clone
  84         // that pollute the query parameter with stuff from the other "use case",
  85         // and then submit the clone.
  86         // Without the cloning we'd be changing the real form, which is slower, could make
  87         // the page look broken for a second in slow browsers and might show the form broken
  88         // again when coming back from a "next" page.
  89         $historyCompareForm.submit( function ( e ) {
  90                 var     $copyForm, $copyRadios, $copyAction;
  91
  92                 if ( $historySubmitter ) {
  93                         $copyForm = $historyCompareForm.clone();
  94                         $copyRadios = $copyForm.find( '#pagehistory > li' ).find( 'input[name="diff"], input[name="oldid"]' );
  95                         $copyAction = $copyForm.find( '> [name="action"]');
  96
  97                         // Remove action=historysubmit and ids[..]=..
  98                         if ( $historySubmitter.hasClass( 'mw-history-compareselectedversions-button' ) ) {
  99                                 $copyAction.remove();
 100                                 $copyForm.find( 'input[name^="ids["]:checked' ).prop( 'checked', false );
 101
 102                         // Remove diff=&oldid=, change action=historysubmit to revisiondelete, remove revisiondelete
 103                         } else if ( $historySubmitter.hasClass( 'mw-history-revisiondelete-button' ) ) {
 104                                 $copyRadios.remove();
 105                                 $copyAction.val( $historySubmitter.attr( 'name' ) );
 106                                 $copyForm.find( ':submit' ).remove();
 107                         }
 108
 109                         // IE7 doesn't do submission from an off-DOM clone, so insert hidden into document first
 110                         // Also remove potentially conflicting id attributes that we don't need anyway
 111                         $copyForm
 112                                 .css( 'display', 'none' )
 113                                 .find('[id]')
 114                                         .removeAttr('id')
 115                                 .end()
 116                                 .insertAfter( $historyCompareForm )
 117                                 .submit();
 118
 119                         e.preventDefault();
 120                         return false; // Because the submit is special, return false as well.
 121                 }
 122
 123                 // Continue natural browser handling other wise
 124                 return true;
 125         } );
 126 } );