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MediaWiki:Gadget-UTCLiveClock.js
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//<nowiki> /** * This gadget adds a clock in the personal toolbar that shows the current time * in UTC (or a different timezone of your choosing), and also provides a link * to purge the current page. * * Revision: July 2020 * Source: [https://www.mediawiki.org/wiki/MediaWiki:Gadget-UTCLiveClock.js] * * To set the timezone used to one other than UTC, set window.LiveClockTimeZone to * the desired timezone. */ function padWithZeroes( num ) { // Pad a number with zeroes. The number must be an integer where // 0 <= num < 100. return num < 10 ? '0' + num.toString() : num.toString(); } function showTime( $target ) { var now = new Date(), timezone = window.LiveClockTimeZone || 'local', // Set the time. hh, mm, ss; if ( timezone === "UTC" ) { hh = now.getUTCHours(); mm = now.getUTCMinutes(); ss = now.getUTCSeconds(); } else if ( timezone === "local" ) { hh = now.getHours(); mm = now.getMinutes(); ss = now.getSeconds(); } else { var newNow; try { newNow = new Date( now.toLocaleString( "en-US", { timeZone: timezone } ) ); hh = newNow.getHours(); mm = newNow.getMinutes(); ss = newNow.getSeconds(); } catch ( err ) { console.error( "LiveClock - error creating Date object with timezone '" + timezone + "': " + err.name); hh = now.getHours(); mm = now.getMinutes(); ss = now.getSeconds(); } } var time = padWithZeroes( hh ) + ':' + padWithZeroes( mm ) + ':' + padWithZeroes( ss ); $target.text( time ); // Schedule the next time change. // // We schedule the change for 100 ms _after_ the next clock tick. The delay // from setTimeout is not precise, and if we aim exactly for the tick, there // is a chance that the function will run slightly before it. If this // happens, we will display the same time for two seconds in a row - not // good. By scheduling 100 ms after the tick, we will always be about 100 ms // late, but we are also very likely to display a new time every second. var ms = now.getUTCMilliseconds(); setTimeout( function () { showTime( $target ); }, 1100 - ms ); } function liveClock() { // Reset whitespace that was set in the peer CSS gadget; this prevents the // effect of the p-personal menu jumping to the left when the JavaScript // loads. $( '.skin-vector #p-personal ul' ).css( 'margin-right', 0 ); // Add the portlet link. var node; if(mw.config.get('skin') == 'vector' && window.LiveClockMode != 'mobile') { node = mw.util.addPortletLink( 'p-personal', mw.util.getUrl( null, { action: 'purge' } ), '', 'utcdate' ); } else if ( mw.config.get('skin') == 'minerva' && window.LiveClockMode != 'desktop' ) { node = $('<div id="utcdate"><a href="#"></a></div>').insertAfter('.minerva-user-menu'); } // Purge the page when the clock is clicked. We have to do this through the // API, as purge URLs now make people click through a confirmation screen. if(!node) { return; } $( node ).on( 'click', function ( e ) { if( mw.config.get('wgIsArticle') ) { new mw.Api().post( { action: 'purge', titles: mw.config.get( 'wgPageName' ) } ).then( function () { location.reload(); }, function () { mw.notify( wgULS('清除缓存失败!', '清除快取失敗!'), { type: 'error' } ); } ); } else { mw.notify( wgULS('当前页面不是内容页面', '當前頁面不是內容頁面'), { type: 'error' } ); } e.preventDefault(); } ); // Show the clock. showTime( $( node ).children( 'a' ) ); } $( liveClock ); //</nowiki>