resources/src/mediawiki.action/mediawiki.action.edit.stash.js

   1 /*!
   2  * Scripts for pre-emptive edit preparing on action=edit
   3  */
   4 ( function ( mw, $ ) {
   5         $( function () {
   6                 var idleTimeout = 4000,
   7                         api = new mw.Api(),
   8                         pending = null,
   9                         $form = $( '#editform' ),
  10                         $text = $form.find( '#wpTextbox1' ),
  11                         data = {},
  12                         timer = null;
  13
  14                 /* Has the edit body text changed since the last stashEdit() call? */
  15                 function isChanged() {
  16                         // Normalize line endings to CRLF, like $.fn.serializeObject does.
  17                         var newText = $text.val().replace( /\r?\n/g, '\r\n' );
  18                         return newText !== data.wpTextbox1;
  19                 }
  20
  21                 function onEditChanged() {
  22                         if ( !isChanged() ) {
  23                                 return;
  24                         }
  25
  26                         // If a request is in progress, abort it; its payload is stale.
  27                         if ( pending ) {
  28                                 pending.abort();
  29                         }
  30
  31                         data = $form.serializeObject();
  32                         pending = api.postWithToken( 'edit', {
  33                                 action: 'stashedit',
  34                                 title: mw.config.get( 'wgPageName' ),
  35                                 section: data.wpSection,
  36                                 sectiontitle: '',
  37                                 text: data.wpTextbox1,
  38                                 contentmodel: data.model,
  39                                 contentformat: data.format,
  40                                 baserevid: data.parentRevId
  41                         } );
  42                 }
  43
  44                 function onKeyPress( e ) {
  45                         // Ignore keystrokes that don't modify text, like cursor movements.
  46                         // See <http://stackoverflow.com/q/2284844>.
  47                         if ( e.which === 0 ) {
  48                                 return;
  49                         }
  50
  51                         clearTimeout( timer );
  52
  53                         if ( pending ) {
  54                                 pending.abort();
  55                         }
  56
  57                         timer = setTimeout( onEditChanged, idleTimeout );
  58                 }
  59
  60                 // We don't attempt to stash new section edits because in such cases
  61                 // the parser output varies on the edit summary (since it determines
  62                 // the new section's name).
  63                 if ( $form.find( 'input[name=wpSection]' ).val() === 'new' ) {
  64                         return;
  65                 }
  66
  67                 $text.on( { change: onEditChanged, keypress: onKeyPress } );
  68
  69         } );
  70 }( mediaWiki, jQuery ) );