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/**
* Animate watch/unwatch links to use asynchronous API requests to
* watch pages, rather than navigating to a different URI.
*/
( function ( mw, $ ) {
/**
* The name of the page to watch or unwatch.
*/
var title = mw.config.get( 'wgRelevantPageName', mw.config.get( 'wgPageName' ) );
/**
* Update the link text, link href attribute and (if applicable)
* "loading" class.
*
* @param $link {jQuery} Anchor tag of (un)watch link.
* @param action {String} One of 'watch', 'unwatch'.
* @param state {String} [optional] 'idle' or 'loading'. Default is 'idle'.
*/
function updateWatchLink( $link, action, state ) {
var accesskeyTip, msgKey, $li, otherAction;
// message keys 'watch', 'watching', 'unwatch' or 'unwatching'.
msgKey = state === 'loading' ? action + 'ing' : action;
otherAction = action === 'watch' ? 'unwatch' : 'watch';
accesskeyTip = $link.attr( 'title' ).match( mw.util.tooltipAccessKeyRegexp );
$li = $link.closest( 'li' );
/**
* Trigger a 'watchpage' event for this List item.
* Announce the otherAction value as the first param.
* Used to monitor the state of watch link.
* TODO: Revise when system wide hooks are implemented
*/
if ( state === undefined ) {
$li.trigger( 'watchpage.mw', otherAction );
}
$link
.text( mw.msg( msgKey ) )
.attr( 'title', mw.msg( 'tooltip-ca-' + action ) +
( accesskeyTip ? ' ' + accesskeyTip[0] : '' )
)
.attr( 'href', mw.util.wikiScript() + '?' + $.param({
title: title,
action: action
})
);
// Most common ID style
if ( $li.prop( 'id' ) === 'ca-' + otherAction ) {
$li.prop( 'id', 'ca-' + action );
}
// Special case for vector icon
if ( $li.hasClass( 'icon' ) ) {
if ( state === 'loading' ) {
$link.addClass( 'loading' );
} else {
$link.removeClass( 'loading' );
}
}
}
/**
* @todo This should be moved somewhere more accessible.
* @param url {String}
* @return {String} The extracted action, defaults to 'view'.
*/
function mwUriGetAction( url ) {
var action, actionPaths, key, i, m, parts;
actionPaths = mw.config.get( 'wgActionPaths' );
// @todo: Does MediaWiki give action path or query param
// precedence ? If the former, move this to the bottom
action = mw.util.getParamValue( 'action', url );
if ( action !== null ) {
return action;
}
for ( key in actionPaths ) {
if ( actionPaths.hasOwnProperty( key ) ) {
parts = actionPaths[key].split( '$1' );
for ( i = 0; i < parts.length; i += 1 ) {
parts[i] = $.escapeRE( parts[i] );
}
m = new RegExp( parts.join( '(.+)' ) ).exec( url );
if ( m && m[1] ) {
return key;
}
}
}
return 'view';
}
// Expose local methods
mw.page.watch = {
updateWatchLink: updateWatchLink
};
$( document ).ready( function () {
var $links = $( '.mw-watchlink a, a.mw-watchlink, ' +
'#ca-watch a, #ca-unwatch a, #mw-unwatch-link1, ' +
'#mw-unwatch-link2, #mw-watch-link2, #mw-watch-link1' );
// Allowing people to add inline animated links is a little scary
$links = $links.filter( ':not( #bodyContent *, #content * )' );
$links.click( function ( e ) {
var action, api, $link;
action = mwUriGetAction( this.href );
if ( action !== 'watch' && action !== 'unwatch' ) {
// Could not extract target action from link url,
// let native browsing handle it further
return true;
}
e.preventDefault();
e.stopPropagation();
$link = $( this );
updateWatchLink( $link, action, 'loading' );
api = new mw.Api();
api[action](
title,
// Success
function ( watchResponse ) {
var $li, otherAction;
otherAction = action === 'watch' ? 'unwatch' : 'watch';
$li = $link.closest( 'li' );
mw.notify( $.parseHTML( watchResponse.message ), {
tag: 'watch-self'
} );
// Set link to opposite
updateWatchLink( $link, otherAction );
// Bug 12395 - update the watch checkbox on edit pages when the
// page is watched or unwatched via the tab.
if ( watchResponse.watched !== undefined ) {
$( '#wpWatchthis' ).prop( 'checked', true );
} else {
$( '#wpWatchthis' ).prop( 'checked', false );
}
},
// Error
function () {
var cleanTitle, msg, link;
// Reset link to non-loading mode
updateWatchLink( $link, action );
// Format error message
cleanTitle = title.replace( /_/g, ' ' );
link = mw.html.element(
'a', {
href: mw.util.wikiGetlink( title ),
title: cleanTitle
}, cleanTitle
);
msg = mw.message( 'watcherrortext', link );
// Report to user about the error
mw.notify( msg, { tag: 'watch-self' } );
}
);
} );
} );
}( mediaWiki, jQuery ) );
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