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/*!
* ULS interface integration logic
*
* Copyright (C) 2012-2013 Alolita Sharma, Amir Aharoni, Arun Ganesh, Brandon Harris,
* Niklas Laxström, Pau Giner, Santhosh Thottingal, Siebrand Mazeland and other
* contributors. See CREDITS for a list.
*
* UniversalLanguageSelector is dual licensed GPLv2 or later and MIT. You don't
* have to do anything special to choose one license or the other and you don't
* have to notify anyone which license you are using. You are free to use
* UniversalLanguageSelector in commercial projects as long as the copyright
* header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
*
* @file
* @ingroup Extensions
* @licence GNU General Public Licence 2.0 or later
* @licence MIT License
*/
( function () {
'use strict';
const languageSettingsModules = [ 'ext.uls.displaysettings' ],
launchULS = require( './ext.uls.launch.js' ),
ActionsMenu = require( './ext.uls.actions.menu.js' ),
ActionsMenuItem = require( './ext.uls.actions.menu.item.js' );
require( './ext.uls.actions.menu.items.registry.js' );
/**
* For Vector, check if the language button id exists.
* For other skins, check wgULSDisplaySettingsInInterlanguage for the current skin.
*
* @return {boolean}
*/
function isUsingStandaloneLanguageButton() {
// Checking for the ULS language button id returns true for Vector, false for other skins.
return $( '#p-lang-btn' ).length > 0 || mw.config.get( 'wgULSDisplaySettingsInInterlanguage' );
}
/**
* @param {jQuery} $element
* @param {Function} onCloseHandler
* @param {Object} uls
*/
function openLanguageSettings( $element, onCloseHandler, uls ) {
mw.loader.using( languageSettingsModules ).then( () => {
$element.languagesettings( {
defaultModule: 'display',
onClose: onCloseHandler,
onPosition: uls.position.bind( uls ),
onVisible: uls.hide.bind( uls )
} ).trigger( 'click' );
} );
}
/**
* Provide entry points to create article in other languages. T290436
*
* @param {Object} uls The ULS object
*/
function addEmptyState( uls ) {
const $emptyStateContainer = $( '<section>' ).addClass( 'uls-empty-state' );
function openActionsMenuEventHandler( event ) {
event.stopPropagation();
function onMenuClose() {
uls.show();
}
openLanguageSettings( $( event.target ), onMenuClose, uls );
}
const languageSettingsMenuItem = {
name: 'languageSettings',
icon: 'settings',
text: $.i18n( 'ext-uls-actions-menu-language-settings-item-label' ),
handler: openActionsMenuEventHandler
};
const actionItemsRegistry = mw.uls.ActionsMenuItemsRegistry;
actionItemsRegistry.register( languageSettingsMenuItem );
const $header = $( '<h3>' )
.addClass( 'uls-empty-state__header' )
.text( $.i18n( 'ext-uls-empty-state-header' ) );
const $desc = $( '<p>' )
.addClass( 'uls-empty-state__desc' )
.text( $.i18n( 'ext-uls-empty-state-desc' ) );
$emptyStateContainer.append( $header, $desc );
uls.$resultsView.append( $emptyStateContainer );
if ( actionItemsRegistry.size() > 1 ) {
// languageSettingsMenuItem will be always there.
// If other actions available, change text
$header.text( $.i18n( 'ext-uls-empty-state-header-actions-available' ) );
$desc.text( $.i18n( 'ext-uls-empty-state-desc-actions-available' ) );
}
// Action menu items need OOUI widgets. Load them and register trigger event handler.
mw.loader.using( [ 'oojs-ui-widgets', 'oojs-ui.styles.icons-interactions' ] ).done( () => {
const $actionsList = $( '<ul>' ).addClass( 'uls-language-action-items' );
actionItemsRegistry.getItems().forEach( ( actionItem ) => {
const actionButton = new ActionsMenuItem(
actionItem.icon,
actionItem.text,
actionItem.handler,
actionItem.href
).render();
$actionsList.append( $( '<li>' ).append( actionButton.$element ) );
} );
$emptyStateContainer.append( $actionsList );
} );
}
/**
* Helper method for creating jQuery buttons, used in "addActionsMenuTriggers" method below
*
* @param {string} buttonClass a class to be added to the created button class list
* @return {jQuery}
*/
function createMenuButton( buttonClass ) {
const classes = [
'cdx-button',
'cdx-button--weight-quiet',
buttonClass
];
// eslint-disable-next-line mediawiki/class-doc
return $( '<button>' ).addClass( classes );
}
/**
* @param {Object} uls The ULS object
* @return {jQuery}
*/
function addLanguageSettingsTrigger( uls ) {
const $ulsSettingsBlock = uls.$menu.find( '#uls-settings-block' ).eq( 0 );
$ulsSettingsBlock.addClass( 'uls-settings-block--vector-2022' );
const $languageSettingsMenuButton = createMenuButton( 'uls-language-settings-button' );
$languageSettingsMenuButton.one( 'click', () => {
openLanguageSettings( $languageSettingsMenuButton, uls.show.bind( uls ), uls );
} );
$ulsSettingsBlock.append( $languageSettingsMenuButton );
uls.$menu.addClass( 'notheme skin-invert' ); // T365990
return $ulsSettingsBlock;
}
/**
* Add the button that opens the "Add languages" menu (that contain options
* like "Translate this page" and "Edit language links") and the button that
* opens the "Language settings" menu.
*
* @param {Object} uls The ULS object
*/
function addActionsMenuTriggers( uls ) {
const $ulsSettingsBlock = addLanguageSettingsTrigger( uls );
const actionItemsRegistry = mw.uls.ActionsMenuItemsRegistry;
actionItemsRegistry.on( 'register', onActionItemAdded );
let addLanguagesMenuDialog;
let $addLanguagesMenuButton;
const prependAddLanguagesMenuButton = function () {
$addLanguagesMenuButton = createMenuButton( 'uls-add-languages-button' ).attr( {
'data-i18n': 'ext-uls-add-languages-button-label'
} ).i18n();
$ulsSettingsBlock.addClass( 'uls-settings-block--with-add-languages' );
$ulsSettingsBlock.prepend( $addLanguagesMenuButton );
// Action menu items need OOUI widgets. Load them and register trigger event handler.
mw.loader.using( [ 'oojs-ui-widgets', 'oojs-ui.styles.icons-interactions' ] ).done( () => {
$addLanguagesMenuButton.on( 'click', () => {
addLanguagesMenuDialog = addLanguagesMenuDialog || new ActionsMenu( {
actions: actionItemsRegistry.getItems(),
onPosition: uls.position.bind( uls ),
onClose: uls.show.bind( uls )
} );
addLanguagesMenuDialog.render();
uls.hide();
} );
} );
};
if ( actionItemsRegistry.size() ) {
prependAddLanguagesMenuButton();
}
function onActionItemAdded( itemName, item ) {
if ( !$addLanguagesMenuButton ) {
prependAddLanguagesMenuButton();
} else if ( addLanguagesMenuDialog ) {
addLanguagesMenuDialog.renderAction( item );
}
}
}
function userCanChangeLanguage() {
return mw.config.get( 'wgULSAnonCanChangeLanguage' ) || mw.user.isNamed();
}
/**
* The tooltip to be shown when language changed using ULS.
* It also allows to undo the language selection.
*
* @param {string} previousLang
* @param {string} previousAutonym
*/
function showUndoTooltip( previousLang, previousAutonym ) {
let popup = null;
const configPosition = mw.config.get( 'wgULSPosition' ),
triggerSelector = ( configPosition === 'interlanguage' ) ?
'.uls-settings-trigger, .mw-interlanguage-selector' :
'.uls-trigger';
// Fallback if no entry point is present
const trigger = document.querySelector( triggerSelector ) || document.querySelector( '#pt-preferences' );
// Skip tooltip if there is no element to attach the tooltip to.
// It will cause errors otherwise.
if ( !trigger ) {
return;
}
function hideTipsy() {
popup.toggle( false );
}
function showTipsy( timeout ) {
let tipsyTimer = 0;
popup.toggle( true );
popup.toggleClipping( true );
// if the mouse is over the tooltip, do not hide
$( '.uls-tipsy' ).on( 'mouseover', () => {
clearTimeout( tipsyTimer );
} ).on( 'mouseout', () => {
tipsyTimer = setTimeout( hideTipsy, timeout );
} ).on( 'click', hideTipsy );
tipsyTimer = setTimeout( hideTipsy, timeout );
}
let popupPosition;
if ( configPosition === 'interlanguage' ) {
popupPosition = 'after';
} else {
popupPosition = 'below';
}
popup = new OO.ui.PopupWidget( {
padded: true,
width: 300,
classes: [ 'uls-tipsy' ],
// Automatically positioned relative to the trigger
$floatableContainer: $( trigger ),
position: popupPosition,
$content: ( function () {
const $link = $( '<a>' )
.text( previousAutonym )
.prop( {
href: '',
class: 'uls-prevlang-link',
lang: previousLang,
// We could get dir from uls.data,
// but we are trying to avoid loading it
// and 'auto' is safe enough in this context.
// T130390: must use attr
dir: 'auto'
} )
.on( 'click', ( event ) => {
event.preventDefault();
// Track if event logging is enabled
mw.hook( 'mw.uls.language.revert' ).fire();
mw.loader.using( [ 'ext.uls.common' ] ).then( () => {
mw.uls.changeLanguage( event.target.lang );
} );
} );
let messageKey;
if ( mw.storage.get( 'uls-gp' ) === '1' ) {
messageKey = 'ext-uls-undo-language-tooltip-text-local';
} else {
messageKey = 'ext-uls-undo-language-tooltip-text';
}
// Message keys listed above
// eslint-disable-next-line mediawiki/msg-doc
return $( '<p>' ).append( mw.message( messageKey, $link ).parseDom() );
}() )
} );
popup.$element.appendTo( document.body );
// The interlanguage position needs some time to settle down
setTimeout( () => {
// Show the tipsy tooltip on page load.
showTipsy( 6000 );
}, 700 );
// manually show the tooltip
$( trigger ).on( 'mouseover', () => {
// show only if the ULS panel is not shown
// eslint-disable-next-line no-jquery/no-sizzle
if ( !$( '.uls-menu:visible' ).length ) {
showTipsy( 3000 );
}
} );
}
function initSecondaryEntryPoints() {
$( '.uls-settings-trigger' ).one( 'click', ( e ) => {
e.preventDefault();
mw.loader.using( languageSettingsModules, () => {
$( e.target ).languagesettings();
$( e.target ).trigger( 'click' );
} );
} );
}
function initInterlanguageEntryPoint() {
const $pLang = $( '#p-lang' );
const $trigger = $( '<button>' )
.addClass( 'uls-settings-trigger' )
.prop( 'title', mw.msg( 'ext-uls-select-language-settings-icon-tooltip' ) );
// Append ULS cog to interlanguage section header in the sidebar
$pLang.prepend( $trigger );
// Replace the title of the interlanguage links area from "In other languages" to
// "Languages" if there are no language links. TODO: Remove this feature?
if ( !$pLang.find( 'div ul' ).children().length && isUsingStandaloneLanguageButton ) {
$pLang.find( 'h3' ).text( mw.msg( 'uls-plang-title-languages' ) );
}
const clickHandler = function ( e ) {
const languagesettings = $trigger.data( 'languagesettings' );
if ( languagesettings ) {
if ( !languagesettings.shown ) {
mw.hook( 'mw.uls.settings.open' ).fire( 'interlanguage' );
}
return;
}
// Initialize the Language settings window
const languageSettingsOptions = {
defaultModule: 'display',
onPosition: function () {
const ulsTriggerHeight = this.$element.height(),
ulsTriggerWidth = this.$element[ 0 ].offsetWidth,
ulsTriggerOffset = this.$element.offset();
// Same as border width in mixins.less, or near enough
const caretRadius = 12;
let left;
if ( ulsTriggerOffset.left > $( window ).width() / 2 ) {
left = ulsTriggerOffset.left - this.$window.width() - caretRadius;
this.$window.removeClass( 'selector-left' ).addClass( 'selector-right' );
} else {
left = ulsTriggerOffset.left + ulsTriggerWidth + caretRadius;
this.$window.removeClass( 'selector-right' ).addClass( 'selector-left' );
}
// The top of the dialog is aligned in relation to
// the middle of the trigger, so that middle of the
// caret aligns with it. 16 is trigger icon height in pixels
const top = ulsTriggerOffset.top +
( ulsTriggerHeight / 2 ) -
( caretRadius + 16 );
return { top: top, left: left };
},
onVisible: function () {
this.$window.addClass( 'callout' );
}
};
mw.loader.using( languageSettingsModules, () => {
$trigger.languagesettings( languageSettingsOptions ).trigger( 'click' );
} );
e.stopPropagation();
};
$trigger.on( 'click', clickHandler );
}
function initPersonalEntryPoint() {
const $trigger = $( '.uls-trigger' );
let clickHandler;
if ( !userCanChangeLanguage() ) {
clickHandler = function ( e ) {
const languagesettings = $trigger.data( 'languagesettings' );
e.preventDefault();
if ( languagesettings ) {
if ( !languagesettings.shown ) {
mw.hook( 'mw.uls.settings.open' ).fire( 'personal' );
}
} else {
mw.loader.using( languageSettingsModules, () => {
$trigger.languagesettings( { autoOpen: true } );
mw.hook( 'mw.uls.settings.open' ).fire( 'personal' );
} );
// Stop propagating the event to avoid closing the languagesettings dialog
// when the event propagates to the document click handler inside
// languagesettings
e.stopPropagation();
}
};
} else {
clickHandler = function ( e, eventParams ) {
const uls = $trigger.data( 'uls' );
e.preventDefault();
if ( uls ) {
if ( !uls.shown ) {
mw.hook( 'mw.uls.settings.open' ).fire( 'personal' );
}
} else {
mw.loader.using( 'ext.uls.mediawiki', () => {
$trigger.uls( {
quickList: function () {
return mw.uls.getFrequentLanguageList();
},
// partially copied from ext.uls.lauch
onPosition: function () {
// Default positioning of jquery.uls is middle of the screen under
// the trigger. This code aligns it under the trigger and to the
// trigger edge depending on which side of the page the trigger is
// It should work automatically both LTR and RTL.
const offset = $trigger.offset();
const width = $trigger.outerWidth();
const height = $trigger.outerHeight();
let positionCSS;
if ( offset.left + ( width / 2 ) > $( window ).width() / 2 ) {
// Midpoint of the trigger is on the right side of the viewport.
positionCSS = {
// Right dialog edge aligns with right edge of the trigger.
right: $( window ).width() - ( offset.left + width ),
top: offset.top + height
};
} else {
// Midpoint of the trigger is on the left side of the viewport.
positionCSS = {
// Left dialog edge aligns with left edge of the trigger.
left: offset.left,
top: offset.top + height
};
}
return positionCSS;
},
onReady: function () {
addLanguageSettingsTrigger( this );
},
onSelect: function ( language ) {
mw.uls.changeLanguage( language );
},
// Not actually used on sites with the gear icon
// in the interlanguage area, because this ULS
// will be a container for other ULS panels.
// However, this is used on sites with ULS
// in the personal bar, and in that case it has the same
// purpose as the selector in Display settings,
// so it has the same identifier.
ulsPurpose: 'interface-language'
} );
// Allow styles to apply first and position to work by
// delaying the activation after them.
setTimeout( () => {
$trigger.trigger( 'click', eventParams );
}, 0 );
} );
}
};
}
$trigger.on( 'click', clickHandler );
// Optimization: Prefetch the Resource loader modules for ULS on mouseover
$trigger.one( 'mouseover', () => {
mw.loader.load( languageSettingsModules );
} );
}
function initLanguageChangeUndoTooltip() {
if ( !userCanChangeLanguage() ) {
return;
}
const previousLanguage = mw.storage.get( 'uls-previous-language-code' );
const currentLanguage = mw.config.get( 'wgUserLanguage' );
const previousAutonym = mw.storage.get( 'uls-previous-language-autonym' );
const currentAutonym = require( '../data.json' ).currentAutonym;
// If storage is empty, i.e. first visit, then store the current language
// immediately so that we know when it changes.
if ( !previousLanguage || !previousAutonym ) {
mw.storage.set( 'uls-previous-language-code', currentLanguage );
mw.storage.set( 'uls-previous-language-autonym', currentAutonym );
return;
}
if ( previousLanguage !== currentLanguage ) {
mw.loader.using( 'oojs-ui-core' ).done( () => {
showUndoTooltip( previousLanguage, previousAutonym );
} );
mw.storage.set( 'uls-previous-language-code', currentLanguage );
mw.storage.set( 'uls-previous-language-autonym', currentAutonym );
// Store this language in a list of frequently used languages
mw.loader.using( [ 'ext.uls.common' ] ).then( () => {
mw.uls.addPreviousLanguage( currentLanguage );
} );
}
}
function initIme() {
const imeSelector = mw.config.get( 'wgULSImeSelectors' ).join( ', ' );
$( document.body ).on( 'focus.imeinit', imeSelector, function () {
const $input = $( this );
$( document.body ).off( '.imeinit' );
mw.loader.using( 'ext.uls.ime', () => {
mw.ime.setup();
mw.ime.handleFocus( $input );
} );
} );
}
/**
* Special handling for checkbox hack.
* Disable default checkbox behavior and bind click to "Enter" keyboard events
*/
function handleCheckboxSelector() {
// If the ULS button is also a checkbox, we can
// conclude that it's using the checkbox hack.
$( document ).on( 'input', 'input.mw-interlanguage-selector[type="checkbox"]', ( ev ) => {
const elem = ev.currentTarget;
elem.checked = false;
} );
$( document ).on( 'keydown', 'input.mw-interlanguage-selector[type="checkbox"]', ( ev ) => {
const elem = ev.currentTarget;
if ( ev.key !== 'Enter' ) {
return;
}
elem.click();
} );
}
/**
* Load and open ULS for content language selection.
*
* This dialog is primarily for selecting the language of the content, but may also provide
* access to display and input settings if isUsingStandaloneLanguageButton() returns true.
*
* @param {jQuery.Event} ev
*/
function loadContentLanguageSelector( ev ) {
const $target = $( ev.currentTarget );
// Avoid reinitializing ULS multiple times for an element
if ( $target.attr( 'data-uls-loaded' ) ) {
return;
}
$target.attr( 'data-uls-loaded', true );
ev.preventDefault();
mw.loader.using( [ 'ext.uls.mediawiki', '@wikimedia/codex' ] ).then( () => {
const parent = document.querySelectorAll( '.mw-portlet-lang, #p-lang' )[ 0 ];
const languageNodes = parent ? parent.querySelectorAll( '.interlanguage-link-target' ) : [];
const standalone = isUsingStandaloneLanguageButton();
// Setup click handler for ULS
launchULS(
$target,
mw.uls.getInterlanguageListFromNodes( languageNodes ),
// Using this as heuristic for now. May need to reconsider later. Enables
// behavior specific to compact language links.
!standalone
);
// Trigger the click handler to open ULS once ready
if ( standalone ) {
// Provide access to display and input settings if this entry point is the single
// point of access to all language settings.
const uls = $target.data( 'uls' );
if ( languageNodes.length ) {
addActionsMenuTriggers( uls );
} else {
// first hide #uls-settings-block div since it's unused, and it causes
// an unwanted extra border to show up at the bottom of the menu
uls.$menu.find( '#uls-settings-block' ).eq( 0 ).hide();
// There are no languages - The article exist only the current language wiki
// Provide entry points to create article in other languages. T290436
addEmptyState( uls );
}
$target.trigger( 'click' );
} else {
$target.trigger( 'click' );
}
} );
}
/** Setup lazy-loading for content language selector */
function initContentLanguageSelectorClickHandler() {
// FIXME: In Timeless ULS is embedded in a menu which stops event propagation
if ( $( '.sidebar-inner' ).length ) {
$( '.sidebar-inner #p-lang' )
.one( 'click', '.mw-interlanguage-selector', loadContentLanguageSelector );
} else {
// This button may be created by the new Vector skin, or ext.uls.compactlinks module
// if there are many languages. Warning: Both this module and ext.uls.compactlinks
// module may run simultaneously. Using event delegation to avoid race conditions where
// the trigger may be created after this code.
$( document ).on( 'click', '.mw-interlanguage-selector', loadContentLanguageSelector );
// Special handling for checkbox hack.
handleCheckboxSelector();
}
}
/**
* The new Vector 2022 skin uses a less prominent language button for non-content pages.
* For these pages, the ULS should not be displayed, but a dropdown with an appropriate message
* should appear. The UniversalLanguageSelector extension should add a button to open the
* language settings, inside this dropdown.
* This method adds this button inside the dropdown.
*/
function addLanguageSettingsToNonContentPages() {
const $languageBtn = $( '#p-lang-btn' );
const clickHandler = function ( event ) {
event.stopPropagation();
mw.loader.using( languageSettingsModules ).then( () => {
$( event.target ).languagesettings( {
autoOpen: true,
onPosition: function () {
const offset = $languageBtn.offset();
const top = offset.top + $languageBtn.outerHeight();
const right = $( window ).width() - offset.left - $languageBtn.outerWidth();
return { top: top, right: right };
}
} );
} );
};
// the first time the language button is clicked inside a non-content page,
// we should add the "Open language settings" button inside the dropdown
$languageBtn.one( 'mouseover', () => {
mw.loader.using( [ 'oojs-ui-widgets', 'oojs-ui.styles.icons-interactions', 'ext.uls.messages' ] )
.done( () => {
const actionButton = new ActionsMenuItem(
'settings',
$.i18n( 'ext-uls-actions-menu-language-settings-item-label' ),
clickHandler,
null
).render();
actionButton.$element.addClass( 'empty-language-selector__language-settings-button' );
const $emptyLanguageSelectorBody = $( '.mw-portlet-empty-language-selector-body' );
$emptyLanguageSelectorBody.after( actionButton.$element );
} );
} );
}
function init() {
// if it's not Vector skin, nothing to be done here
if ( mw.config.get( 'skin' ) === 'vector-2022' && mw.config.get( 'wgULSisLanguageSelectorEmpty' ) ) {
// if this is a non-content page, we should add the "Open language settings" button
// inside the language dropdown
addLanguageSettingsToNonContentPages();
}
initLanguageChangeUndoTooltip();
initIme();
// There are three basic components of ULS interface:
// - language selection for interface
// - language selection for content
// - settings view (access to language selection for interface, fonts, input methods)
//
// These can be combined in different ways:
// - Vector skin (recently) has an omni selector that has content language selection as
// primary action with access to the settings view. It is on top right corner (LTR) of
// the page content area. It may not be present on all pages.
// - Compact language links provides access to content language selection only and it is in
// the interlanguage section of the sidebar. This is in addition to one of the main entry
// points below.
// - Personal entry point appears at the top of the page. It provides quick access to the
// interface language selection with access to the settings view, except if user is not
// logged in and not allowed to change a language. In this case it defaults to settings
// view without language selection.
// - Interlanguage entry point (a cog) appears in the interlanguage section in the sidebar.
// It defaults to the settings view.
//
// The three main entry points (omni selector, personal, interlanguage) are mutually
// exclusive. There may be secondary entry points anywhere on the page using the
// uls-settings-trigger class.
// First init secondary to avoid initing the interlanguage entry point multiple times
initSecondaryEntryPoints();
const position = mw.config.get( 'wgULSPosition' );
if ( position === 'interlanguage' ) {
initInterlanguageEntryPoint();
} else {
initPersonalEntryPoint();
}
// whether to load compact language links
const compact = mw.config.get( 'wgULSisCompactLinksEnabled' );
// whether to show the omni box or not
const languageInHeader = mw.config.get( 'wgVector2022LanguageInHeader' );
if ( compact || languageInHeader ) {
// Init compact languages OR omni selector using the mw-interlanguage-selector class
initContentLanguageSelectorClickHandler();
} else {
$( '.mw-interlanguage-selector' ).removeClass( 'mw-interlanguage-selector' );
document.body.classList.add( 'mw-interlanguage-selector-disabled' );
}
}
// Early execute of init
if ( document.readyState === 'interactive' ) {
init();
} else {
$( init );
}
}() );

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