skins/common/ajaxwatch.js

   1 /**
   2  * Animate watch/unwatch links to use asynchronous API requests to
   3  * watch pages, rather than clicking on links. Requires jQuery.
   4  * Uses jsMsg() from wikibits.js.
   5  */
   6
   7 if( typeof wgAjaxWatch === 'undefined' || !wgAjaxWatch ) {
   8         var wgAjaxWatch = {
   9                 watchMsg: 'Watch',
  10                 unwatchMsg: 'Unwatch',
  11                 watchingMsg: 'Watching...',
  12                 unwatchingMsg: 'Unwatching...',
  13                 'tooltip-ca-watchMsg': 'Add this page to your watchlist',
  14                 'tooltip-ca-unwatchMsg': 'Remove this page from your watchlist'
  15         };
  16 }
  17
  18 wgAjaxWatch.setLinkText = function( $link, action ) {
  19         if( action == 'watch' || action == 'unwatch' ) {
  20                 // save the accesskey from the title
  21                 var keyCommand = $link.attr( 'title' ).match( /\[.*?\]$/ )
  22                         ? $link.attr( 'title' ).match( /\[.*?\]$/ )[0]
  23                         : '';
  24                 $link.attr( 'title', wgAjaxWatch['tooltip-ca-' + action + 'Msg'] + ' ' + keyCommand );
  25         }
  26         if( $link.data( 'icon' ) ) {
  27                 $link.attr( 'alt', wgAjaxWatch[action + 'Msg'] );
  28                 if ( action == 'watching' || action == 'unwatching' ) {
  29                         $link.addClass( 'loading' );
  30                 } else {
  31                         $link.removeClass( 'loading' );
  32                 }
  33         } else {
  34                 $link.html( wgAjaxWatch[action + 'Msg'] );
  35         }
  36 };
  37
  38 wgAjaxWatch.processResult = function( response ) {
  39         response = response.watch;
  40         var $link = $j( this );
  41         // To ensure we set the same status for all watch links with the
  42         // same target we trigger a custom event on *all* watch links.
  43         if( response.watched !== undefined ) {
  44                 wgAjaxWatch.$links.trigger( 'mw-ajaxwatch', [response.title, 'watch'] );
  45         } else if ( response.unwatched !== undefined ) {
  46                 wgAjaxWatch.$links.trigger( 'mw-ajaxwatch', [response.title, 'unwatch'] );
  47         } else {
  48                 // Either we got an error code or it just plain broke.
  49                 window.location.href = $link.attr( 'href' );
  50                 return;
  51         }
  52
  53         jsMsg( response.message, 'watch' );
  54
  55         // Bug 12395 - update the watch checkbox on edit pages when the
  56         // page is watched or unwatched via the tab.
  57         if( response.watched !== undefined ) {
  58                 $j( '#wpWatchthis' ).attr( 'checked', '1' );
  59         } else {
  60                 $j( '#wpWatchthis' ).removeAttr( 'checked' );
  61         }
  62 };
  63
  64 $j( document ).ready( function() {
  65         var $links = $j( '.mw-watchlink a, a.mw-watchlink' );
  66         // BC with older skins
  67         $links = $links
  68                 .add( $j( '#ca-watch a, #ca-unwatch a, a#mw-unwatch-link1' ) )
  69                 .add( $j( 'a#mw-unwatch-link2, a#mw-watch-link2, a#mw-watch-link1' ) );
  70         // allowing people to add inline animated links is a little scary
  71         $links = $links.filter( ':not( #bodyContent *, #content * )' );
  72
  73         $links.each( function() {
  74                 var $link = $j( this );
  75                 $link
  76                         .data( 'icon', $link.parents( 'li' ).hasClass( 'icon' ) )
  77                         .data( 'action', $link.attr( 'href' ).match( /[\?\&]action=unwatch/i ) ? 'unwatch' : 'watch' );
  78                 var title = $link.attr( 'href' ).match( /[\?\&]title=(.*?)&/i )[1];
  79                 $link.data( 'target', decodeURIComponent( title ).replace( /_/g, ' ' ) );
  80         });
  81
  82         $links.click( function( event ) {
  83                 var $link = $j( this );
  84
  85                 if( wgAjaxWatch.supported === false || !wgEnableWriteAPI || !wfSupportsAjax() ) {
  86                         // Lazy initialization so we don't toss up
  87                         // ActiveX warnings on initial page load
  88                         // for IE 6 users with security settings.
  89                         wgAjaxWatch.$links.unbind( 'click' );
  90                         return true;
  91                 }
  92
  93                 wgAjaxWatch.setLinkText( $link, $link.data( 'action' ) + 'ing' );
  94                 $j.get( wgScriptPath
  95                                 + '/api' + wgScriptExtension + '?action=watch&format=json&title='
  96                                 + encodeURIComponent( $link.data( 'target' ) )
  97                                 + ( $link.data( 'action' ) == 'unwatch' ? '&unwatch' : '' ),
  98                         {},
  99                         wgAjaxWatch.processResult,
 100                         'json'
 101                 );
 102
 103                 return false;
 104         });
 105
 106         // When a request returns, a custom event 'mw-ajaxwatch' is triggered
 107         // on *all* watch links, so they can be updated if necessary
 108         $links.bind( 'mw-ajaxwatch', function( event, target, action ) {
 109                 var $link = $j( this );
 110                 var foo = $link.data( 'target' );
 111                 if( $link.data( 'target' ) == target ) {
 112                         var otheraction = action == 'watch'
 113                                 ? 'unwatch'
 114                                 : 'watch';
 115
 116                         $link.data( 'action', otheraction );
 117                         wgAjaxWatch.setLinkText( $link, otheraction );
 118                         $link.attr( 'href', $link.attr( 'href' ).replace( '/&action=' + action + '/', '&action=' + otheraction ) );
 119                         if( $link.parents( 'li' ).attr( 'id' ) == 'ca-' + action ) {
 120                                 $link.parents( 'li' ).attr( 'id', 'ca-' + otheraction );
 121                         }
 122                 };
 123                 return false;
 124         });
 125
 126         wgAjaxWatch.$links = $links;
 127 });