5cd10ce862
As a precursor to incorporating a new language switcher in the new version of Vector I'd like to improve the performance of loading the switcher. It seems most code can be deferred until the language selector button is clicked. This shaves around 30kb of resources off the critical path for most users. There's potential here for a positive performance impact so we should follow up the deployment by checking the associated performance graphs to see if there's improvement. Note, if the compact personal links feature is enabled there is no performance saving for now. This will be addressed in follow ups. Bug: T153844 Bug: T153845 Bug: T237061 Change-Id: I740600d18859422b2f98a5ef92d0321f6e9615a2
466 lines
13 KiB
JavaScript
466 lines
13 KiB
JavaScript
/*!
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* ULS interface integration logic
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*
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* Copyright (C) 2012-2013 Alolita Sharma, Amir Aharoni, Arun Ganesh, Brandon Harris,
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* Niklas Laxström, Pau Giner, Santhosh Thottingal, Siebrand Mazeland and other
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* contributors. See CREDITS for a list.
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*
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* UniversalLanguageSelector is dual licensed GPLv2 or later and MIT. You don't
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* have to do anything special to choose one license or the other and you don't
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* have to notify anyone which license you are using. You are free to use
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* UniversalLanguageSelector in commercial projects as long as the copyright
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* header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
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*
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* @file
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* @ingroup Extensions
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* @licence GNU General Public Licence 2.0 or later
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* @licence MIT License
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*/
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( function () {
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'use strict';
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var languageSettingsModules = [ 'ext.uls.displaysettings' ];
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/**
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* Construct the display settings link
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*
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* @return {jQuery}
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*/
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function displaySettings() {
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return $( '<button>' )
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.addClass( 'display-settings-block' )
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.attr( {
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title: $.i18n( 'ext-uls-display-settings-desc' ),
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'data-i18n': 'ext-uls-display-settings-title'
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} )
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.i18n();
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}
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/**
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* Construct the input settings link
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*
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* @return {jQuery}
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*/
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function inputSettings() {
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return $( '<button>' )
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.addClass( 'input-settings-block' )
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.attr( {
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title: $.i18n( 'ext-uls-input-settings-desc' ),
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'data-i18n': 'ext-uls-input-settings-title'
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} )
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.i18n();
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}
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/**
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* Add display settings link to the settings bar in ULS
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*
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* @param {Object} uls The ULS object
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*/
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function addDisplaySettings( uls ) {
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var $displaySettings = displaySettings();
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uls.$menu.find( '#uls-settings-block' ).append( $displaySettings );
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// Initialize the trigger
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$displaySettings.one( 'click', function () {
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var displaySettingsOptions = {
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defaultModule: 'display'
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},
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ulsPosition = mw.config.get( 'wgULSPosition' ),
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anonMode = ( mw.user.isAnon() &&
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!mw.config.get( 'wgULSAnonCanChangeLanguage' ) );
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// If the ULS trigger is shown in the top personal menu,
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// closing the display settings must show the main ULS
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// languages list, unless we are in anon mode and thus
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// cannot show the language list
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if ( ulsPosition === 'personal' && !anonMode ) {
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displaySettingsOptions.onClose = function () {
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uls.show();
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};
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}
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$.extend( displaySettingsOptions, uls.position() );
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$displaySettings.languagesettings( displaySettingsOptions ).trigger( 'click' );
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} );
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}
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/**
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* Add input settings link to the settings bar in ULS
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*
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* @param {Object} uls The ULS object
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*/
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function addInputSettings( uls ) {
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var $inputSettings = inputSettings();
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uls.$menu.find( '#uls-settings-block' ).append( $inputSettings );
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// Initialize the trigger
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$inputSettings.one( 'click', function () {
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var position = uls.position();
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$inputSettings.languagesettings( {
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defaultModule: 'input',
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onClose: function () {
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uls.show();
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},
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top: position.top,
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left: position.left
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} ).trigger( 'click' );
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} );
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}
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function userCanChangeLanguage() {
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return mw.config.get( 'wgULSAnonCanChangeLanguage' ) || !mw.user.isAnon();
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}
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/**
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* The tooltip to be shown when language changed using ULS.
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* It also allows to undo the language selection.
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*
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* @param {string} previousLang
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* @param {string} previousAutonym
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*/
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function showUndoTooltip( previousLang, previousAutonym ) {
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var $ulsTrigger, ulsPopup, ulsPopupPosition,
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ulsPosition = mw.config.get( 'wgULSPosition' );
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$ulsTrigger = ( ulsPosition === 'interlanguage' ) ?
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$( '.uls-settings-trigger' ) :
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$( '.uls-trigger' );
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function hideTipsy() {
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ulsPopup.toggle( false );
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}
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function showTipsy( timeout ) {
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var tipsyTimer = 0;
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ulsPopup.toggle( true );
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ulsPopup.toggleClipping( false );
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// if the mouse is over the tooltip, do not hide
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$( '.uls-tipsy' ).on( 'mouseover', function () {
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clearTimeout( tipsyTimer );
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} ).on( 'mouseout', function () {
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tipsyTimer = setTimeout( hideTipsy, timeout );
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} );
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// hide the tooltip when clicked on it
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$( '.uls-tipsy' ).on( 'click', hideTipsy );
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tipsyTimer = setTimeout( hideTipsy, timeout );
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}
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// remove any existing popups
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if ( ulsPopup ) {
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ulsPopup.$element.remove();
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}
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if ( ulsPosition === 'interlanguage' ) {
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if ( $ulsTrigger.offset().left > $( window ).width() / 2 ) {
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ulsPopupPosition = 'before';
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} else {
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ulsPopupPosition = 'after';
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}
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// Reverse for RTL
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if ( $( document.documentElement ).prop( 'dir' ) === 'rtl' ) {
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ulsPopupPosition = ( ulsPopupPosition === 'after' ) ? 'before' : 'after';
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}
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} else {
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ulsPopupPosition = 'below';
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}
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ulsPopup = new OO.ui.PopupWidget( {
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padded: true,
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width: 300,
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classes: [ 'uls-tipsy' ],
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// Automatically positioned relative to the trigger
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$floatableContainer: $ulsTrigger,
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position: ulsPopupPosition,
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$content: ( function () {
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var messageKey, $link;
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$link = $( '<a>' )
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.text( previousAutonym )
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.prop( {
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href: '',
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class: 'uls-prevlang-link',
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lang: previousLang,
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// We could get dir from uls.data,
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// but we are trying to avoid loading it
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// and 'auto' is safe enough in this context.
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// T130390: must use attr
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dir: 'auto'
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} )
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.on( 'click', function ( event ) {
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var deferred = $.Deferred();
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event.preventDefault();
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deferred.done( function () {
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mw.loader.using( [ 'ext.uls.common' ] ).then( function () {
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mw.uls.changeLanguage( event.target.lang );
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} );
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} );
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mw.hook( 'mw.uls.language.revert' ).fire( deferred );
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// Delay is zero if event logging is not enabled
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setTimeout( function () {
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deferred.resolve();
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}, mw.config.get( 'wgULSEventLogging' ) * 500 );
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} );
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if ( mw.storage.get( 'uls-gp' ) === '1' ) {
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messageKey = 'ext-uls-undo-language-tooltip-text-local';
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} else {
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messageKey = 'ext-uls-undo-language-tooltip-text';
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}
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// Message keys listed above
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// eslint-disable-next-line mediawiki/msg-doc
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return $( '<p>' ).append( mw.message( messageKey, $link ).parseDom() );
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}() )
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} );
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ulsPopup.$element.appendTo( document.body );
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// The interlanguage position needs some time to settle down
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setTimeout( function () {
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// Show the tipsy tooltip on page load.
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showTipsy( 6000 );
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}, 700 );
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// manually show the tooltip
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$ulsTrigger.on( 'mouseover', function () {
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// show only if the ULS panel is not shown
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// eslint-disable-next-line no-jquery/no-sizzle
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if ( !$( '.uls-menu:visible' ).length ) {
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showTipsy( 3000 );
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}
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} );
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}
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function initInterface() {
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var $pLang,
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clickHandler,
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$ulsTrigger = $( '.uls-trigger' ),
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anonMode = ( mw.user.isAnon() &&
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!mw.config.get( 'wgULSAnonCanChangeLanguage' ) ),
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ulsPosition = mw.config.get( 'wgULSPosition' );
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if ( ulsPosition === 'interlanguage' ) {
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// TODO: Refactor this block
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// The interlanguage links section
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$pLang = $( '#p-lang' );
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// Add an element near the interlanguage links header
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$ulsTrigger = $( '<button>' )
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.addClass( 'uls-settings-trigger' );
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// Append ULS cog to languages section.
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$pLang.prepend( $ulsTrigger );
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// Take care of any other elements with this class.
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$ulsTrigger = $( '.uls-settings-trigger' );
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if ( !$pLang.find( 'div ul' ).children().length ) {
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// Replace the title of the interlanguage links area
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// if there are no interlanguage links
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$pLang.find( 'h3' )
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.text( mw.msg( 'uls-plang-title-languages' ) );
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}
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$ulsTrigger.attr( {
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title: mw.msg( 'ext-uls-select-language-settings-icon-tooltip' )
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} );
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clickHandler = function ( e, eventParams ) {
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var languagesettings = $ulsTrigger.data( 'languagesettings' ),
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languageSettingsOptions;
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if ( languagesettings ) {
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if ( !languagesettings.shown ) {
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mw.hook( 'mw.uls.settings.open' ).fire( eventParams && eventParams.source || 'interlanguage' );
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}
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return;
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}
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// Initialize the Language settings window
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languageSettingsOptions = {
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defaultModule: 'display',
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onVisible: function () {
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var caretRadius,
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ulsTriggerHeight = this.$element.height(),
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ulsTriggerWidth = this.$element[ 0 ].offsetWidth,
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ulsTriggerOffset = this.$element.offset();
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this.$window.addClass( 'callout' );
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// Same as border width in mixins.less, or near enough
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caretRadius = 12;
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if ( ulsTriggerOffset.left > $( window ).width() / 2 ) {
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this.left = ulsTriggerOffset.left - this.$window.width() - caretRadius;
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this.$window.removeClass( 'selector-left' ).addClass( 'selector-right' );
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} else {
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this.left = ulsTriggerOffset.left + ulsTriggerWidth + caretRadius;
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this.$window.removeClass( 'selector-right' ).addClass( 'selector-left' );
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}
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// The top of the dialog is aligned in relation to
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// the middle of the trigger, so that middle of the
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// caret aligns with it. 16 is trigger icon height in pixels
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this.top = ulsTriggerOffset.top +
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( ulsTriggerHeight / 2 ) -
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( caretRadius + 16 );
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this.position();
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}
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};
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mw.loader.using( languageSettingsModules, function () {
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$ulsTrigger.languagesettings( languageSettingsOptions ).trigger( 'click' );
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} );
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e.stopPropagation();
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};
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} else if ( anonMode ) {
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clickHandler = function ( e, eventParams ) {
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var languagesettings = $ulsTrigger.data( 'languagesettings' );
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e.preventDefault();
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if ( languagesettings ) {
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if ( !languagesettings.shown ) {
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mw.hook( 'mw.uls.settings.open' ).fire( eventParams && eventParams.source || 'personal' );
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}
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} else {
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mw.loader.using( languageSettingsModules, function () {
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$ulsTrigger.languagesettings();
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$ulsTrigger.trigger( 'click', eventParams );
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} );
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}
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};
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} else {
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clickHandler = function ( e, eventParams ) {
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var uls = $ulsTrigger.data( 'uls' );
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e.preventDefault();
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if ( uls ) {
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if ( !uls.shown ) {
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mw.hook( 'mw.uls.settings.open' ).fire( eventParams && eventParams.source || 'personal' );
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}
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} else {
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mw.loader.using( 'ext.uls.mediawiki', function () {
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$ulsTrigger.uls( {
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quickList: function () {
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return mw.uls.getFrequentLanguageList();
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},
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onReady: function () {
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var uls = this;
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mw.loader.using( languageSettingsModules, function () {
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addDisplaySettings( uls );
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addInputSettings( uls );
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} );
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},
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onSelect: function ( language ) {
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mw.uls.changeLanguage( language );
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},
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// Not actually used on sites with the gear icon
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// in the interlanguage area, because this ULS
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// will be a container for other ULS panels.
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// However, this is used on sites with ULS
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// in the personal bar, and in that case it has the same
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// purpose as the selector in Display settings,
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// so it has the same identifier.
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ulsPurpose: 'interface-language'
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} );
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// Allow styles to apply first and position to work by
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// delaying the activation after them.
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setTimeout( function () {
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$ulsTrigger.trigger( 'click', eventParams );
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}, 0 );
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} );
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}
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};
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}
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$ulsTrigger.on( 'click', clickHandler );
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// Bind language settings to preferences page link
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$( '#uls-preferences-link' )
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.on( 'click keypress', function ( e ) {
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if (
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e.type === 'click' ||
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e.type === 'keypress' && e.which === 13
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) {
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$ulsTrigger.trigger( 'click', {
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source: 'preferences'
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} );
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}
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return false;
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} );
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}
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function initTooltip() {
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var previousLanguage, currentLanguage, previousAutonym, currentAutonym;
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if ( !userCanChangeLanguage() ) {
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return;
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}
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previousLanguage = mw.storage.get( 'uls-previous-language-code' );
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currentLanguage = mw.config.get( 'wgUserLanguage' );
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previousAutonym = mw.storage.get( 'uls-previous-language-autonym' );
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currentAutonym = mw.config.get( 'wgULSCurrentAutonym' );
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// If storage is empty, i.e. first visit, then store the current language
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// immediately so that we know when it changes.
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if ( !previousLanguage || !previousAutonym ) {
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mw.storage.set( 'uls-previous-language-code', currentLanguage );
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mw.storage.set( 'uls-previous-language-autonym', currentAutonym );
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return;
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}
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if ( previousLanguage !== currentLanguage ) {
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mw.loader.using( 'oojs-ui-core' ).done( function () {
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showUndoTooltip( previousLanguage, previousAutonym );
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} );
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mw.storage.set( 'uls-previous-language-code', currentLanguage );
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mw.storage.set( 'uls-previous-language-autonym', currentAutonym );
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// Store this language in a list of frequently used languages
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mw.loader.using( [ 'ext.uls.common' ] ).then( function () {
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mw.uls.addPreviousLanguage( currentLanguage );
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} );
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}
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}
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function initIme() {
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var imeSelector = mw.config.get( 'wgULSImeSelectors' ).join( ', ' );
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$( document.body ).on( 'focus.imeinit', imeSelector, function () {
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var $input = $( this );
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$( document.body ).off( '.imeinit' );
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mw.loader.using( 'ext.uls.ime', function () {
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mw.ime.setup();
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mw.ime.handleFocus( $input );
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} );
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} );
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}
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function init() {
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initInterface();
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initTooltip();
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initIme();
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}
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// Early execute of init
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if ( document.readyState === 'interactive' ) {
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init();
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} else {
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$( init );
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}
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}() );
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