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// See [[mw:Reference Tooltips]]

// Source https://en.wikipedia.org/wiki/MediaWiki:Gadget-ReferenceTooltips.js

( function () {

// enwiki settings

var REF_LINK_SELECTOR = '.reference, a[href^="#CITEREF"]',

COMMENTED_TEXT_CLASS = '',

COMMENTED_TEXT_SELECTOR = ( COMMENTED_TEXT_CLASS ? '.' + COMMENTED_TEXT_CLASS + ', ' : '') +

'abbr[title]';

mw.messages.set( {

'rt-settings': 'Reference Tooltips settings',

'rt-settings': 'Подешавања тултипова за референце',

'rt-enable-footer': 'Enable Reference Tooltips',

'rt-enable-footer': 'Омогући тултипове за референце',

'rt-settings-title': 'Reference Tooltips',

'rt-settings-title': 'Тултипови за референце',

'rt-save': 'Save',

'rt-save': 'Сачувај',

'rt-cancel': 'Cancel',

'rt-cancel': 'Откажи',

'rt-enable': 'Enable',

'rt-enable': 'Омогући',

'rt-disable': 'Disable',

'rt-disable': 'Онемогући',

'rt-activationMethod': 'Tooltip appears when',

'rt-activationMethod': 'Начин активирања тултипа',

'rt-hovering': 'hovering',

'rt-hovering': 'ховеровање',

'rt-clicking': 'clicking',

'rt-clicking': 'кликање',

'rt-delay': 'Delay before the tooltip appears (in milliseconds)',

'rt-delay': 'Одлагање пре него што се тултип појави (у милисекундама)',

'rt-tooltipsForComments': 'Show tooltips over <span title="Tooltip example" class="' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' ) + '" style="border-bottom: 1px dotted; cursor: help;">text with a dotted underline</span> in Reference Tooltips style (allows to see such tooltips on devices with no mouse support)',

'rt-tooltipsForComments': 'Прикажи тултипове изнад <span title="Пример тултипа" class="' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' ) + '" style="border-bottom: 1px dotted; cursor: help;">текст подвучен испрекиданом линијом</span> у стилу тултипова за референце (дозвољава да видите тултипове на уређајима који немају могућност миша)',

'rt-disabledNote': 'You can re-enable Reference Tooltips using a link in the footer of the page.',

'rt-disabledNote': 'Можете поново омогућити тултипове за референце користећи везу у заглављу странице.',

'rt-done': 'Done',

'rt-done': 'Урађено',

'rt-enabled': 'Reference Tooltips are enabled'

'rt-enabled': 'Тултипови за референце су омогућени'

} );

// "Global" variables

var SECONDS_IN_A_DAY = 60 * 60 * 24,

CLASSES = {

FADE_IN_DOWN: 'rt-fade-in-down',

FADE_IN_UP: 'rt-fade-in-up',

FADE_OUT_DOWN: 'rt-fade-out-down',

FADE_OUT_UP: 'rt-fade-out-up'

IS_TOUCHSCREEN = 'ontouchstart' in document.documentElement,

// Quite a rough check for mobile browsers, a mix of what is advised at

// https://stackoverflow.com/a/24600597 (sends to

// https://developer.mozilla.org/en-US/docs/Browser_detection_using_the_user_agent)

// and https://stackoverflow.com/a/14301832

IS_MOBILE = /Mobi|Android/i.test( navigator.userAgent ) ||

typeof window.orientation !== 'undefined',

CLIENT_NAME = $.client.profile().name,

settingsString, settings, enabled, delay, activatedByClick, tooltipsForComments, cursorWaitCss,

windowManager,

$body = $( document.body ),

$window = $( window );

function rt( $content ) {

// Popups gadget

if ( window.pg ) {

return;

}

var teSelector,

settingsDialogOpening = false;

function setSettingsCookie() {

mw.cookie.set(

'RTsettings',

Number( enabled ) + '|' + delay + '|' + Number( activatedByClick ) + '|' +

Number( tooltipsForComments ),

{ path: '/', expires: 90 * SECONDS_IN_A_DAY, prefix: '' }

);

}

function enableRt() {

enabled = true;

setSettingsCookie();

$( '.rt-enableItem' ).remove();

rt( $content );

mw.notify( mw.msg( 'rt-enabled' ) );

}

function disableRt() {

$content.find( teSelector ).removeClass( 'rt-commentedText' ).off( '.rt' );

$body.off( '.rt' );

$window.off( '.rt' );

}

function addEnableLink() {

// #footer-places – Vector

// #f-list – Timeless, Monobook, Modern

// parent of #footer li – Cologne Blue

var $footer = $( '#footer-places, #f-list' );

if ( !$footer.length ) {

$footer = $( '#footer li' ).parent();

}

$footer.append(

$( '<li>' )

.addClass( 'rt-enableItem' )

.append(

$( '<a>' )

.text( mw.msg( 'rt-enable-footer' ) )

.attr( 'href', 'javascript:' )

.click( function ( e ) {

e.preventDefault();

enableRt();

} )

)

);

}

function TooltippedElement( $element ) {

var tooltip,

events,

te = this;

function onStartEvent( e ) {

var showRefArgs;

if ( activatedByClick && te.type !== 'commentedText' && e.type !== 'contextmenu' ) {

e.preventDefault();

}

if ( !te.noRef ) {

showRefArgs = [ $( this ) ];

if ( te.type !== 'supRef' ) {

showRefArgs.push( e.pageX, e.pageY );

}

te.showRef.apply( te, showRefArgs );

}

function onEndEvent() {

if ( !te.noRef ) {

te.hideRef();

}

if ( !$element ) {

return;

}

// TooltippedElement.$element and TooltippedElement.$originalElement will be different when

// the first is changed after its cloned version is hovered in a tooltip

this.$element = $element;

this.$originalElement = $element;

if ( this.$element.is( REF_LINK_SELECTOR ) ) {

if ( this.$element.prop( 'tagName' ) === 'SUP' ) {

this.type = 'supRef';

} else {

this.type = 'harvardRef';

}

} else {

this.type = 'commentedText';

this.comment = this.$element.attr( 'title' );

if ( !this.comment ) {

return;

}

this.$element.addClass('rt-commentedText');

}

if ( activatedByClick ) {

events = {

'click.rt': onStartEvent

};

// Adds an ability to see tooltips for links

if ( this.type === 'commentedText' &&

( this.$element.closest( 'a' ).length ||

this.$element.has( 'a' ).length

)

) {

events[ 'contextmenu.rt' ] = onStartEvent;

}

} else {

events = {

'mouseenter.rt': onStartEvent,

'mouseleave.rt': onEndEvent

};

}

this.$element.on( events );

this.hideRef = function ( immediately ) {

clearTimeout( te.showTimer );

if ( this.type === 'commentedText' ) {

this.$element.attr( 'title', this.comment );

}

if ( this.tooltip && this.tooltip.isPresent ) {

if ( activatedByClick || immediately ) {

this.tooltip.hide();

} else {

this.hideTimer = setTimeout( function () {

te.tooltip.hide();

}, 200 );

}

} else if ( this.$ref && this.$ref.hasClass( 'rt-target' ) ) {

this.$ref.removeClass( 'rt-target' );

if ( activatedByClick ) {

$body.off( 'click.rt touchstart.rt', this.onBodyClick );

}

};

this.showRef = function ( $element, ePageX, ePageY ) {

// Popups gadget

if ( window.pg ) {

disableRt();

return;

}

if ( this.tooltip && !this.tooltip.$content.length ) {

return;

}

var tooltipInitiallyPresent = this.tooltip && this.tooltip.isPresent;

function reallyShow() {

var viewportTop, refOffsetTop, teHref;

if ( !te.$ref && !te.comment ) {

teHref = te.type === 'supRef' ?

te.$element.find( 'a' ).attr( 'href' ) :

te.$element.attr( 'href' ); // harvardRef

te.$ref = teHref &&

$( '#' + $.escapeSelector( teHref.slice( 1 ) ) );

if ( !te.$ref || !te.$ref.length || !te.$ref.text() ) {

te.noRef = true;

return;

}

if ( !tooltipInitiallyPresent && !te.comment ) {

viewportTop = $window.scrollTop();

refOffsetTop = te.$ref.offset().top;

if ( !activatedByClick &&

viewportTop < refOffsetTop &&

viewportTop + $window.height() > refOffsetTop + te.$ref.height() &&

// There can be gadgets/scripts that make references horizontally scrollable.

$window.width() > te.$ref.offset().left + te.$ref.width()

) {

// Highlight the reference itself

te.$ref.addClass( 'rt-target' );

return;

}

if ( !te.tooltip ) {

te.tooltip = new Tooltip( te );

if ( !te.tooltip.$content.length ) {

return;

}

// If this tooltip is called from inside another tooltip. We can't define it

// in the constructor since a ref can be cloned but have the same Tooltip object;

// so, Tooltip.parent is a floating value.

te.tooltip.parent = te.$element.closest( '.rt-tooltip' ).data( 'tooltip' );

if ( te.tooltip.parent && te.tooltip.parent.disappearing ) {

return;

}

te.tooltip.show();

if ( tooltipInitiallyPresent ) {

if ( te.tooltip.$element.hasClass( 'rt-tooltip-above' ) ) {

te.tooltip.$element.addClass( CLASSES.FADE_IN_DOWN );

} else {

te.tooltip.$element.addClass( CLASSES.FADE_IN_UP );

}

return;

}

te.tooltip.calculatePosition( ePageX, ePageY );

$window.on( 'resize.rt', te.onWindowResize );

}

// We redefine this.$element here because e.target can be a reference link inside

// a reference tooltip, not a link that was initially assigned to this.$element

this.$element = $element;

if ( this.type === 'commentedText' ) {

this.$element.attr( 'title', '' );

}

if ( activatedByClick ) {

if ( tooltipInitiallyPresent ||

( this.$ref && this.$ref.hasClass( 'rt-target' ) )

) {

return;

} else {

setTimeout( function () {

$body.on( 'click.rt touchstart.rt', te.onBodyClick );

}, 0 );

}

if ( activatedByClick || tooltipInitiallyPresent ) {

reallyShow();

} else {

this.showTimer = setTimeout( reallyShow, delay );

}

};

this.onBodyClick = function ( e ) {

if ( !te.tooltip && !te.$ref.hasClass( 'rt-target' ) ) {

return;

}

var $current = $( e.target );

function contextMatchesParameter( parameter ) {

return this === parameter;

}

// The last condition is used to determine cases when a clicked tooltip is the current

// element's tooltip or one of its descendants

while ( $current.length &&

( !$current.hasClass( 'rt-tooltip' ) ||

!$current.data( 'tooltip' ) ||

!$current.data( 'tooltip' ).upToTopParent(

contextMatchesParameter, [ te.tooltip ],

true

)

) {

$current = $current.parent();

}

if ( !$current.length ) {

te.hideRef();

}

};

this.onWindowResize = function () {

te.tooltip.calculatePosition();

};

}

function Tooltip( te ) {

function openSettingsDialog() {

var settingsDialog, settingsWindow;

if ( cursorWaitCss ) {

cursorWaitCss.disabled = true;

}

function SettingsDialog() {

SettingsDialog.parent.call( this );

}

OO.inheritClass( SettingsDialog, OO.ui.ProcessDialog );

SettingsDialog.static.name = 'settingsDialog';

SettingsDialog.static.title = mw.msg( 'rt-settings-title' );

SettingsDialog.static.actions = [

{

modes: 'basic',

action: 'save',

label: mw.msg( 'rt-save' ),

flags: [ 'primary', 'progressive' ]

{

modes: 'basic',

label: mw.msg( 'rt-cancel' ),

flags: 'safe'

{

modes: 'disabled',

action: 'deactivated',

label: mw.msg( 'rt-done' ),

flags: [ 'primary', 'progressive' ]

}

];

SettingsDialog.prototype.initialize = function () {

var dialog = this;

SettingsDialog.parent.prototype.initialize.apply( this, arguments );

this.enableOption = new OO.ui.RadioOptionWidget( {

label: mw.msg( 'rt-enable' )

} );

this.disableOption = new OO.ui.RadioOptionWidget( {

label: mw.msg( 'rt-disable' )

} );

this.enableSelect = new OO.ui.RadioSelectWidget( {

items: [ this.enableOption, this.disableOption ],

classes: [ 'rt-enableSelect' ]

} );

this.enableSelect.selectItem( this.enableOption );

this.enableSelect.on( 'choose', function ( item ) {

if ( item === dialog.disableOption ) {

dialog.activationMethodSelect.setDisabled( true );

dialog.delayInput.setDisabled( true );

dialog.tooltipsForCommentsCheckbox.setDisabled( true );

} else {

dialog.activationMethodSelect.setDisabled( false );

dialog.delayInput.setDisabled( dialog.clickOption.isSelected() );

dialog.tooltipsForCommentsCheckbox.setDisabled( false );

}

} );

this.hoverOption = new OO.ui.RadioOptionWidget( {

label: mw.msg( 'rt-hovering' )

} );

this.clickOption = new OO.ui.RadioOptionWidget( {

label: mw.msg( 'rt-clicking' )

} );

this.activationMethodSelect = new OO.ui.RadioSelectWidget( {

items: [ this.hoverOption, this.clickOption ]

} );

this.activationMethodSelect.selectItem( activatedByClick ?

this.clickOption :

this.hoverOption

);

this.activationMethodSelect.on( 'choose', function ( item ) {

if ( item === dialog.clickOption ) {

dialog.delayInput.setDisabled( true );

} else {

dialog.delayInput.setDisabled( dialog.clickOption.isSelected() );

}

} );

this.activationMethodField = new OO.ui.FieldLayout( this.activationMethodSelect, {

label: mw.msg( 'rt-activationMethod' ),

align: 'top'

} );

this.delayInput = new OO.ui.NumberInputWidget( {

input: { value: delay },

step: 50,

min: 0,

max: 5000,

disabled: activatedByClick,

classes: [ 'rt-numberInput' ]

} );

this.delayField = new OO.ui.FieldLayout( this.delayInput, {

label: mw.msg( 'rt-delay' ),

align: 'top'

} );

this.tooltipsForCommentsCheckbox = new OO.ui.CheckboxInputWidget( {

selected: tooltipsForComments

} );

this.tooltipsForCommentsField = new OO.ui.FieldLayout(

this.tooltipsForCommentsCheckbox,

{

label: new OO.ui.HtmlSnippet( mw.msg( 'rt-tooltipsForComments' ) ),

align: 'inline',

classes: [ 'rt-tooltipsForCommentsField' ]

}

);

new TooltippedElement(

this.tooltipsForCommentsField.$element.find(

'.' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' )

)

);

this.fieldset = new OO.ui.FieldsetLayout();

this.fieldset.addItems( [

this.activationMethodField,

this.delayField,

this.tooltipsForCommentsField

] );

this.panelSettings = new OO.ui.PanelLayout( {

padded: true,

expanded: false

} );

this.panelSettings.$element.append(

this.enableSelect.$element,

$( '<hr>' ).addClass( 'rt-settingsFormSeparator' ),

this.fieldset.$element

);

this.panelDisabled = new OO.ui.PanelLayout( {

padded: true,

expanded: false

} );

this.panelDisabled.$element.append(

$( '<table>' )

.addClass( 'rt-disabledHelp' )

.append(

$( '<tr>' ).append(

$( '<td>' ).append(

$( '<img>' ).attr( 'src', 'https://en.wikipedia.org/w/load.php?modules=ext.popups.images&image=footer&format=rasterized&lang=ru&skin=vector&version=0uotisb' )

$( '<td>' )

.addClass( 'rt-disabledNote' )

.text( mw.msg( 'rt-disabledNote' ) )

)

);

this.stackLayout = new OO.ui.StackLayout( {

items: [ this.panelSettings, this.panelDisabled ]

} );

this.$body.append( this.stackLayout.$element );

};

SettingsDialog.prototype.getSetupProcess = function ( data ) {

return SettingsDialog.parent.prototype.getSetupProcess.call( this, data )

.next( function () {

this.stackLayout.setItem( this.panelSettings );

this.actions.setMode( 'basic' );

}, this );

};

SettingsDialog.prototype.getActionProcess = function ( action ) {

var dialog = this;

if ( action === 'save' ) {

return new OO.ui.Process( function () {

var newDelay = Number( dialog.delayInput.getValue() );

enabled = dialog.enableOption.isSelected();

if ( newDelay >= 0 && newDelay <= 5000 ) {

delay = newDelay;

}

activatedByClick = dialog.clickOption.isSelected();

tooltipsForComments = dialog.tooltipsForCommentsCheckbox.isSelected();

setSettingsCookie();

if ( enabled ) {

dialog.close();

disableRt();

rt( $content );

} else {

dialog.actions.setMode( 'disabled' );

dialog.stackLayout.setItem( dialog.panelDisabled );

disableRt();

addEnableLink();

}

} );

} else if ( action === 'deactivated' ) {

dialog.close();

}

return SettingsDialog.parent.prototype.getActionProcess.call( this, action );

};

SettingsDialog.prototype.getBodyHeight = function () {

return this.stackLayout.getCurrentItem().$element.outerHeight( true );

};

tooltip.upToTopParent( function adjustRightAndHide() {

if ( this.isPresent ) {

if ( this.$element[ 0 ].style.right ) {

this.$element.css(

'right',

'+=' + ( window.innerWidth - $window.width() )

);

}

this.te.hideRef( true );

}

} );

if ( !windowManager ) {

windowManager = new OO.ui.WindowManager();

$body.append( windowManager.$element );

}

settingsDialog = new SettingsDialog();

windowManager.addWindows( [ settingsDialog ] );

settingsWindow = windowManager.openWindow( settingsDialog );

settingsWindow.opened.then( function () {

settingsDialogOpening = false;

} );

settingsWindow.closed.then( function () {

windowManager.clearWindows();

} );

}

var tooltip = this;

// This variable can change: one tooltip can be called from a harvard-style reference link

// that is put into different tooltips

this.te = te;

switch ( this.te.type ) {

case 'supRef':

this.id = 'rt-' + this.te.$originalElement.attr( 'id' );

this.$content = this.te.$ref

.contents()

.filter( function ( i ) {

var $this = $( this );

return this.nodeType === Node.TEXT_NODE ||

!( $this.is( '.mw-cite-backlink' ) ||

( i === 0 &&

// Template:Cnote, Template:Note

( $this.is( 'b' ) ||

// Template:Note_label

$this.is( 'a' ) &&

$this.attr( 'href' ).indexOf( '#ref' ) === 0

)

);

} )

.clone( true );

break;

case 'harvardRef':

this.id = 'rt-' + this.te.$originalElement.closest( 'li' ).attr( 'id' );

this.$content = this.te.$ref

.clone( true )

.removeAttr( 'id' );

break;

case 'commentedText':

this.id = 'rt-' + String( Math.random() ).slice( 2 );

this.$content = $( document.createTextNode( this.te.comment ) );

break;

}

if ( !this.$content.length ) {

return;

}

this.insideWindow = Boolean( this.te.$element.closest( '.oo-ui-window' ).length );

this.$element = $( '<div>' )

.addClass( 'rt-tooltip' )

.attr( 'id', this.id )

.attr( 'role', 'tooltip' )

.data( 'tooltip', this );

if ( this.insideWindow ) {

this.$element.addClass( 'rt-tooltip-insideWindow' );

}

// We need the $content interlayer here in order for the settings icon to have correct

// margins

this.$content = this.$content

.wrapAll( '<div>' )

.parent()

.addClass( 'rt-tooltipContent' )

.addClass( 'mw-parser-output' )

.appendTo( this.$element );

if ( !activatedByClick ) {

this.$element

.mouseenter( function () {

if ( !tooltip.disappearing ) {

tooltip.upToTopParent( function () {

this.show();

} );

}

} )

.mouseleave( function ( e ) {

// https://stackoverflow.com/q/47649442 workaround. Relying on relatedTarget

// alone has pitfalls: when alt-tabbing, relatedTarget is empty too

if ( CLIENT_NAME !== 'chrome' ||

( !e.originalEvent ||

e.originalEvent.relatedTarget !== null ||

!tooltip.clickedTime ||

$.now() - tooltip.clickedTime > 50

)

) {

tooltip.upToTopParent( function () {

this.te.hideRef();

} );

}

} )

.click( function () {

tooltip.clickedTime = $.now();

} );

}

if ( !this.insideWindow ) {

$( '<div>' )

.addClass( 'rt-settingsLink' )

.attr( 'title', mw.msg( 'rt-settings' ) )

.click( function () {

if ( settingsDialogOpening ) {

return;

}

settingsDialogOpening = true;

if ( mw.loader.getState( 'oojs-ui' ) !== 'ready' ) {

if ( cursorWaitCss ) {

cursorWaitCss.disabled = false;

} else {

cursorWaitCss = mw.util.addCSS( 'body { cursor: wait; }' );

}

mw.loader.using( [ 'oojs', 'oojs-ui' ], openSettingsDialog );

} )

.prependTo( this.$content );

}

// Tooltip tail element is inside tooltip content element in order for the tooltip

// not to disappear when the mouse is above the tail

this.$tail = $( '<div>' )

.addClass( 'rt-tooltipTail' )

.prependTo( this.$element );

this.disappearing = false;

this.show = function () {

this.disappearing = false;

clearTimeout( this.te.hideTimer );

clearTimeout( this.te.removeTimer );

this.$element

.removeClass( CLASSES.FADE_OUT_DOWN )

.removeClass( CLASSES.FADE_OUT_UP );

if ( !this.isPresent ) {

$body.append( this.$element );

}

this.isPresent = true;

};

this.hide = function () {

var tooltip = this;

tooltip.disappearing = true;

if ( tooltip.$element.hasClass( 'rt-tooltip-above' ) ) {

tooltip.$element

.removeClass( CLASSES.FADE_IN_DOWN )

.addClass( CLASSES.FADE_OUT_UP );

} else {

tooltip.$element

.removeClass( CLASSES.FADE_IN_UP )

.addClass( CLASSES.FADE_OUT_DOWN );

}

tooltip.te.removeTimer = setTimeout( function () {

if ( tooltip.isPresent ) {

tooltip.$element.detach();

tooltip.$tail.css( 'left', '' );

if ( activatedByClick ) {

$body.off( 'click.rt touchstart.rt', tooltip.te.onBodyClick );

}

$window.off( 'resize.rt', tooltip.te.onWindowResize );

tooltip.isPresent = false;

}

}, 200 );

};

this.calculatePosition = function ( ePageX, ePageY ) {

var teElement, teOffsets, teOffset, tooltipTailOffsetX, tooltipTailLeft,

offsetYCorrection = 0;

this.$tail.css( 'left', '' );

teElement = this.te.$element.get( 0 );

if ( ePageX !== undefined ) {

tooltipTailOffsetX = ePageX;

teOffsets = teElement.getClientRects &&

teElement.getClientRects() ||

teElement.getBoundingClientRect();

if ( teOffsets.length > 1 ) {

for (var i = teOffsets.length - 1; i >= 0; i--) {

if ( ePageY >= Math.round( $window.scrollTop() + teOffsets[i].top ) &&

ePageY <= Math.round(

$window.scrollTop() + teOffsets[i].top + teOffsets[i].height

)

) {

teOffset = teOffsets[i];

}

if ( !teOffset ) {

teOffset = teElement.getClientRects &&

teElement.getClientRects()[0] ||

teElement.getBoundingClientRect();

}

teOffset = {

top: $window.scrollTop() + teOffset.top,

left: $window.scrollLeft() + teOffset.left,

width: teOffset.width,

height: teOffset.height

};

if ( !tooltipTailOffsetX ) {

tooltipTailOffsetX = ( teOffset.left * 2 + teOffset.width ) / 2;

}

if ( CLIENT_NAME === 'msie' && this.te.type === 'supRef' ) {

offsetYCorrection = -Number(

this.te.$element.parent().css( 'font-size' ).replace( 'px', '' )

) / 2;

}

this.$element.css( {

top: teOffset.top - this.$element.outerHeight() - 7 + offsetYCorrection,

left: tooltipTailOffsetX - 20,

right: ''

} );

// Is it squished against the right side of the page?

if ( this.$element.offset().left + this.$element.outerWidth() > $window.width() - 1 ) {

this.$element.css( {

left: '',

right: 0

} );

tooltipTailLeft = tooltipTailOffsetX - this.$element.offset().left - 5;

}

// Is a part of it above the top of the screen?

if ( teOffset.top < this.$element.outerHeight() + $window.scrollTop() + 6 ) {

this.$element

.removeClass( 'rt-tooltip-above' )

.addClass( 'rt-tooltip-below' )

.addClass( CLASSES.FADE_IN_UP )

.css( {

top: teOffset.top + teOffset.height + 9 + offsetYCorrection

} );

if ( tooltipTailLeft ) {

this.$tail.css( 'left', ( tooltipTailLeft + 12 ) + 'px' );

}

} else {

this.$element

.removeClass( 'rt-tooltip-below' )

.addClass( 'rt-tooltip-above' )

.addClass( CLASSES.FADE_IN_DOWN )

// A fix for cases when a tooltip shown once is then wrongly positioned when it

// is shown again after a window resize. We just repeat what is above.

.css( {

top: teOffset.top - this.$element.outerHeight() - 7 + offsetYCorrection

} );

if ( tooltipTailLeft ) {

// 12 is the tail element width/height

this.$tail.css( 'left', tooltipTailLeft + 'px' );

}

};

// Run some function for all the tooltips up to the top one in a tree. Its context will be

// the tooltip, while its parameters may be passed to Tooltip.upToTopParent as an array

// in the second parameter. If the third parameter passed to ToolTip.upToTopParent is true,

// the execution stops when the function in question returns true for the first time,

// and ToolTip.upToTopParent returns true as well.

this.upToTopParent = function ( func, parameters, stopAtTrue ) {

var returnValue,

currentTooltip = this;

do {

returnValue = func.apply( currentTooltip, parameters );

if ( stopAtTrue && returnValue ) {

break;

}

} while ( currentTooltip = currentTooltip.parent );

if ( stopAtTrue ) {

return returnValue;

}

};

}

if ( !enabled ) {

addEnableLink();

return;

}

teSelector = REF_LINK_SELECTOR;

if ( tooltipsForComments ) {

teSelector += ', ' + COMMENTED_TEXT_SELECTOR;

}

$content.find( teSelector ).each( function () {

new TooltippedElement( $( this ) );

} );

}

settingsString = mw.cookie.get( 'RTsettings', '' );

if ( settingsString ) {

settings = settingsString.split( '|' );

enabled = Boolean( Number( settings[ 0 ] ) );

delay = Number( settings[ 1 ] );

activatedByClick = Boolean( Number( settings[ 2 ] ) );

// The forth value was added later, so we provide for a default value. See comments below

// for why we use "IS_TOUCHSCREEN && IS_MOBILE".

tooltipsForComments = settings[ 3 ] === undefined ?

IS_TOUCHSCREEN && IS_MOBILE :

IS_TOUCHSCREEN && IS_MOBIL

Boolean( Number( settings[ 3 ] ) );

} else {

enabled = true;

Saved diffs

Original text

Open file

// See [[mw:Reference Tooltips]]
// Source https://en.wikipedia.org/wiki/MediaWiki:Gadget-ReferenceTooltips.js

( function () {

// enwiki settings
var REF_LINK_SELECTOR = '.reference, a[href^="#CITEREF"]',
	COMMENTED_TEXT_CLASS = '',
	COMMENTED_TEXT_SELECTOR = ( COMMENTED_TEXT_CLASS ? '.' + COMMENTED_TEXT_CLASS + ', ' : '') +
		'abbr[title]';

mw.messages.set( {
	'rt-settings': 'Reference Tooltips settings',
	'rt-enable-footer': 'Enable Reference Tooltips',
	'rt-settings-title': 'Reference Tooltips',
	'rt-save': 'Save',
	'rt-cancel': 'Cancel',
	'rt-enable': 'Enable',
	'rt-disable': 'Disable',
	'rt-activationMethod': 'Tooltip appears when',
	'rt-hovering': 'hovering',
	'rt-clicking': 'clicking',
	'rt-delay': 'Delay before the tooltip appears (in milliseconds)',
	'rt-tooltipsForComments': 'Show tooltips over <span title="Tooltip example" class="' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' ) + '" style="border-bottom: 1px dotted; cursor: help;">text with a dotted underline</span> in Reference Tooltips style (allows to see such tooltips on devices with no mouse support)',
	'rt-disabledNote': 'You can re-enable Reference Tooltips using a link in the footer of the page.',
	'rt-done': 'Done',
	'rt-enabled': 'Reference Tooltips are enabled'
} );

// "Global" variables
var SECONDS_IN_A_DAY = 60 * 60 * 24,
	CLASSES = {
		FADE_IN_DOWN: 'rt-fade-in-down',
		FADE_IN_UP: 'rt-fade-in-up',
		FADE_OUT_DOWN: 'rt-fade-out-down',
		FADE_OUT_UP: 'rt-fade-out-up'
	},
	IS_TOUCHSCREEN = 'ontouchstart' in document.documentElement,
	// Quite a rough check for mobile browsers, a mix of what is advised at
	// https://stackoverflow.com/a/24600597 (sends to
	// https://developer.mozilla.org/en-US/docs/Browser_detection_using_the_user_agent)
	// and https://stackoverflow.com/a/14301832
	IS_MOBILE = /Mobi|Android/i.test( navigator.userAgent ) ||
		typeof window.orientation !== 'undefined',
	CLIENT_NAME = $.client.profile().name,
	settingsString, settings, enabled, delay, activatedByClick, tooltipsForComments, cursorWaitCss,
	windowManager,
	$body = $( document.body ),
	$window = $( window );

function rt( $content ) {
	// Popups gadget
	if ( window.pg ) {
		return;
	}

	var teSelector,
		settingsDialogOpening = false;

	function setSettingsCookie() {
		mw.cookie.set(
			'RTsettings',
			Number( enabled ) + '|' + delay + '|' + Number( activatedByClick ) + '|' +
				Number( tooltipsForComments ),
			{ path: '/', expires: 90 * SECONDS_IN_A_DAY, prefix: '' }
		);
	}

	function enableRt() {
		enabled = true;
		setSettingsCookie();
		$( '.rt-enableItem' ).remove();
		rt( $content );
		mw.notify( mw.msg( 'rt-enabled' ) );
	}

	function disableRt() {
		$content.find( teSelector ).removeClass( 'rt-commentedText' ).off( '.rt' );
		$body.off( '.rt' );
		$window.off( '.rt' );
	}

	function addEnableLink() {
		// #footer-places – Vector
		// #f-list – Timeless, Monobook, Modern
		// parent of #footer li – Cologne Blue
		var $footer = $( '#footer-places, #f-list' );
		if ( !$footer.length ) {
			$footer = $( '#footer li' ).parent();
		}
		$footer.append(
			$( '<li>' )
				.addClass( 'rt-enableItem' )
				.append(
					$( '<a>' )
						.text( mw.msg( 'rt-enable-footer' ) )
						.attr( 'href', 'javascript:' )
						.click( function ( e ) {
							e.preventDefault();
							enableRt();
						} )
			)
		);
	}

	function TooltippedElement( $element ) {
		var tooltip,
			events,
			te = this;

		function onStartEvent( e ) {
			var showRefArgs;

			if ( activatedByClick && te.type !== 'commentedText' && e.type !== 'contextmenu' ) {
				e.preventDefault();
			}
			if ( !te.noRef ) {
				showRefArgs = [ $( this ) ];
				if ( te.type !== 'supRef' ) {
					showRefArgs.push( e.pageX, e.pageY );
				}
				te.showRef.apply( te, showRefArgs );
			}
		}

		function onEndEvent() {
			if ( !te.noRef ) {
				te.hideRef();
			}
		}

		if ( !$element ) {
			return;
		}

		// TooltippedElement.$element and TooltippedElement.$originalElement will be different when
		// the first is changed after its cloned version is hovered in a tooltip
		this.$element = $element;
		this.$originalElement = $element;
		if ( this.$element.is( REF_LINK_SELECTOR ) ) {
			if ( this.$element.prop( 'tagName' ) === 'SUP' ) {
				this.type = 'supRef';
			} else {
				this.type = 'harvardRef';
			}
		} else {
			this.type = 'commentedText';
			this.comment = this.$element.attr( 'title' );
			if ( !this.comment ) {
				return;
			}
			this.$element.addClass('rt-commentedText');
		}
		
		if ( activatedByClick ) {
			events = {
				'click.rt': onStartEvent
			};
			// Adds an ability to see tooltips for links
			if ( this.type === 'commentedText' &&
				( this.$element.closest( 'a' ).length ||
					this.$element.has( 'a' ).length
				)
			) {
				events[ 'contextmenu.rt' ] = onStartEvent;
			}
		} else {
			events = {
				'mouseenter.rt': onStartEvent,
				'mouseleave.rt': onEndEvent
			};
		}

		this.$element.on( events );

		this.hideRef = function ( immediately ) {
			clearTimeout( te.showTimer );

			if ( this.type === 'commentedText' ) {
				this.$element.attr( 'title', this.comment );
			}

			if ( this.tooltip && this.tooltip.isPresent ) {
				if ( activatedByClick || immediately ) {
					this.tooltip.hide();
				} else {
					this.hideTimer = setTimeout( function () {
						te.tooltip.hide();
					}, 200 );
				}
			} else if ( this.$ref && this.$ref.hasClass( 'rt-target' ) ) {
				this.$ref.removeClass( 'rt-target' );
				if ( activatedByClick ) {
					$body.off( 'click.rt touchstart.rt', this.onBodyClick );
				}
			}
		};

		this.showRef = function ( $element, ePageX, ePageY ) {
			// Popups gadget
			if ( window.pg ) {
				disableRt();
				return;
			}
			
			if ( this.tooltip && !this.tooltip.$content.length ) {
				return;
			}

			var tooltipInitiallyPresent = this.tooltip && this.tooltip.isPresent;

			function reallyShow() {
				var viewportTop, refOffsetTop, teHref;

				if ( !te.$ref && !te.comment ) {
					teHref = te.type === 'supRef' ?
						te.$element.find( 'a' ).attr( 'href' ) :
						te.$element.attr( 'href' ); // harvardRef
					te.$ref = teHref &&
						$( '#' + $.escapeSelector( teHref.slice( 1 ) ) );
					if ( !te.$ref || !te.$ref.length || !te.$ref.text() ) {
						te.noRef = true;
						return;
					}
				}

				if ( !tooltipInitiallyPresent && !te.comment ) {
					viewportTop = $window.scrollTop();
					refOffsetTop = te.$ref.offset().top;
					if ( !activatedByClick &&
						viewportTop < refOffsetTop &&
						viewportTop + $window.height() > refOffsetTop + te.$ref.height() &&
						// There can be gadgets/scripts that make references horizontally scrollable.
						$window.width() > te.$ref.offset().left + te.$ref.width()
					) {
						// Highlight the reference itself
						te.$ref.addClass( 'rt-target' );
						return;
					}
				}

				if ( !te.tooltip ) {
					te.tooltip = new Tooltip( te );
					if ( !te.tooltip.$content.length ) {
						return;
					}
				}

				// If this tooltip is called from inside another tooltip. We can't define it
				// in the constructor since a ref can be cloned but have the same Tooltip object;
				// so, Tooltip.parent is a floating value.
				te.tooltip.parent = te.$element.closest( '.rt-tooltip' ).data( 'tooltip' );
				if ( te.tooltip.parent && te.tooltip.parent.disappearing ) {
					return;
				}

				te.tooltip.show();

				if ( tooltipInitiallyPresent ) {
					if ( te.tooltip.$element.hasClass( 'rt-tooltip-above' ) ) {
						te.tooltip.$element.addClass( CLASSES.FADE_IN_DOWN );
					} else {
						te.tooltip.$element.addClass( CLASSES.FADE_IN_UP );
					}
					return;
				}

				te.tooltip.calculatePosition( ePageX, ePageY );

				$window.on( 'resize.rt', te.onWindowResize );
			}

			// We redefine this.$element here because e.target can be a reference link inside
			// a reference tooltip, not a link that was initially assigned to this.$element
			this.$element = $element;

			if ( this.type === 'commentedText' ) {
				this.$element.attr( 'title', '' );
			}

			if ( activatedByClick ) {
				if ( tooltipInitiallyPresent ||
					( this.$ref && this.$ref.hasClass( 'rt-target' ) )
				) {
					return;
				} else {
					setTimeout( function () {
						$body.on( 'click.rt touchstart.rt', te.onBodyClick );
					}, 0 );
				}
			}

			if ( activatedByClick || tooltipInitiallyPresent ) {
				reallyShow();
			} else {
				this.showTimer = setTimeout( reallyShow, delay );
			}
		};

		this.onBodyClick = function ( e ) {
			if ( !te.tooltip && !te.$ref.hasClass( 'rt-target' ) ) {
				return;
			}

			var $current = $( e.target );

			function contextMatchesParameter( parameter ) {
				return this === parameter;
			}

			// The last condition is used to determine cases when a clicked tooltip is the current
			// element's tooltip or one of its descendants
			while ( $current.length &&
				( !$current.hasClass( 'rt-tooltip' ) ||
					!$current.data( 'tooltip' ) ||
					!$current.data( 'tooltip' ).upToTopParent(
						contextMatchesParameter, [ te.tooltip ],
						true
					)
				)
			) {
				$current = $current.parent();
			}
			if ( !$current.length ) {
				te.hideRef();
			}
		};

		this.onWindowResize = function () {
			te.tooltip.calculatePosition();
		};
	}

	function Tooltip( te ) {
		function openSettingsDialog() {
			var settingsDialog, settingsWindow;

			if ( cursorWaitCss ) {
				cursorWaitCss.disabled = true;
			}

			function SettingsDialog() {
				SettingsDialog.parent.call( this );
			}
			OO.inheritClass( SettingsDialog, OO.ui.ProcessDialog );

			SettingsDialog.static.name = 'settingsDialog';
			SettingsDialog.static.title = mw.msg( 'rt-settings-title' );
			SettingsDialog.static.actions = [
				{
					modes: 'basic',
					action: 'save',
					label: mw.msg( 'rt-save' ),
					flags: [ 'primary', 'progressive' ]
				},
				{
					modes: 'basic',
					label: mw.msg( 'rt-cancel' ),
					flags: 'safe'
				},
				{
					modes: 'disabled',
					action: 'deactivated',
					label: mw.msg( 'rt-done' ),
					flags: [ 'primary', 'progressive' ]
				}
			];

			SettingsDialog.prototype.initialize = function () {
				var dialog = this;

				SettingsDialog.parent.prototype.initialize.apply( this, arguments );

				this.enableOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-enable' )
				} );
				this.disableOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-disable' )
				} );
				this.enableSelect = new OO.ui.RadioSelectWidget( {
					items: [ this.enableOption, this.disableOption ],
					classes: [ 'rt-enableSelect' ]
				} );
				this.enableSelect.selectItem( this.enableOption );
				this.enableSelect.on( 'choose', function ( item ) {
					if ( item === dialog.disableOption ) {
						dialog.activationMethodSelect.setDisabled( true );
						dialog.delayInput.setDisabled( true );
						dialog.tooltipsForCommentsCheckbox.setDisabled( true );
					} else {
						dialog.activationMethodSelect.setDisabled( false );
						dialog.delayInput.setDisabled( dialog.clickOption.isSelected() );
						dialog.tooltipsForCommentsCheckbox.setDisabled( false );
					}
				} );

				this.hoverOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-hovering' )
				} );
				this.clickOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-clicking' )
				} );
				this.activationMethodSelect = new OO.ui.RadioSelectWidget( {
					items: [ this.hoverOption, this.clickOption ]
				} );
				this.activationMethodSelect.selectItem( activatedByClick ?
					this.clickOption :
					this.hoverOption
				);
				this.activationMethodSelect.on( 'choose', function ( item ) {
					if ( item === dialog.clickOption ) {
						dialog.delayInput.setDisabled( true );
					} else {
						dialog.delayInput.setDisabled( dialog.clickOption.isSelected() );
					}
				} );
				this.activationMethodField = new OO.ui.FieldLayout( this.activationMethodSelect, {
					label: mw.msg( 'rt-activationMethod' ),
					align: 'top'
				} );

				this.delayInput = new OO.ui.NumberInputWidget( {
					input: { value: delay },
					step: 50,
					min: 0,
					max: 5000,
					disabled: activatedByClick,
					classes: [ 'rt-numberInput' ]
				} );
				this.delayField = new OO.ui.FieldLayout( this.delayInput, {
					label: mw.msg( 'rt-delay' ),
					align: 'top'
				} );

				this.tooltipsForCommentsCheckbox = new OO.ui.CheckboxInputWidget( {
					selected: tooltipsForComments
				} );
				this.tooltipsForCommentsField = new OO.ui.FieldLayout(
					this.tooltipsForCommentsCheckbox,
					{
						label: new OO.ui.HtmlSnippet( mw.msg( 'rt-tooltipsForComments' ) ),
						align: 'inline',
						classes: [ 'rt-tooltipsForCommentsField' ]
					}
				);
				new TooltippedElement(
					this.tooltipsForCommentsField.$element.find(
						'.' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' )
					)
				);

				this.fieldset = new OO.ui.FieldsetLayout();
				this.fieldset.addItems( [
					this.activationMethodField,
					this.delayField,
					this.tooltipsForCommentsField
				] );

				this.panelSettings = new OO.ui.PanelLayout( {
					padded: true,
					expanded: false
				} );
				this.panelSettings.$element.append(
					this.enableSelect.$element,
					$( '<hr>' ).addClass( 'rt-settingsFormSeparator' ),
					this.fieldset.$element
				);

				this.panelDisabled = new OO.ui.PanelLayout( {
					padded: true,
					expanded: false
				} );
				this.panelDisabled.$element.append(
					$( '<table>' )
						.addClass( 'rt-disabledHelp' )
						.append(
							$( '<tr>' ).append(
								$( '<td>' ).append(
									$( '<img>' ).attr( 'src', 'https://en.wikipedia.org/w/load.php?modules=ext.popups.images&image=footer&format=rasterized&lang=ru&skin=vector&version=0uotisb' )
								),
								$( '<td>' )
									.addClass( 'rt-disabledNote' )
									.text( mw.msg( 'rt-disabledNote' ) )
							)
						)
				);

				this.stackLayout = new OO.ui.StackLayout( {
					items: [ this.panelSettings, this.panelDisabled ]
				} );

				this.$body.append( this.stackLayout.$element );
			};

			SettingsDialog.prototype.getSetupProcess = function ( data ) {
				return SettingsDialog.parent.prototype.getSetupProcess.call( this, data )
					.next( function () {
						this.stackLayout.setItem( this.panelSettings );
						this.actions.setMode( 'basic' );
					}, this );
			};

			SettingsDialog.prototype.getActionProcess = function ( action ) {
				var dialog = this;

				if ( action === 'save' ) {
					return new OO.ui.Process( function () {
						var newDelay = Number( dialog.delayInput.getValue() );

						enabled = dialog.enableOption.isSelected();
						if ( newDelay >= 0 && newDelay <= 5000 ) {
							delay = newDelay;
						}
						activatedByClick = dialog.clickOption.isSelected();
						tooltipsForComments = dialog.tooltipsForCommentsCheckbox.isSelected();

						setSettingsCookie();

						if ( enabled ) {
							dialog.close();
							disableRt();
							rt( $content );
						} else {
							dialog.actions.setMode( 'disabled' );
							dialog.stackLayout.setItem( dialog.panelDisabled );
							disableRt();
							addEnableLink();
						}
					} );
				} else if ( action === 'deactivated' ) {
					dialog.close();
				}
				return SettingsDialog.parent.prototype.getActionProcess.call( this, action );
			};

			SettingsDialog.prototype.getBodyHeight = function () {
				return this.stackLayout.getCurrentItem().$element.outerHeight( true );
			};

			tooltip.upToTopParent( function adjustRightAndHide() {
				if ( this.isPresent ) {
					if ( this.$element[ 0 ].style.right ) {
						this.$element.css(
							'right',
							'+=' + ( window.innerWidth - $window.width() )
						);
					}
					this.te.hideRef( true );
				}
			} );

			if ( !windowManager ) {
				windowManager = new OO.ui.WindowManager();
				$body.append( windowManager.$element );
			}

			settingsDialog = new SettingsDialog();
			windowManager.addWindows( [ settingsDialog ] );
			settingsWindow = windowManager.openWindow( settingsDialog );
			settingsWindow.opened.then( function () {
				settingsDialogOpening = false;
			} );
			settingsWindow.closed.then( function () {
				windowManager.clearWindows();
			} );
		}

		var tooltip = this;

		// This variable can change: one tooltip can be called from a harvard-style reference link
		// that is put into different tooltips
		this.te = te;

		switch ( this.te.type ) {
			case 'supRef':
				this.id = 'rt-' + this.te.$originalElement.attr( 'id' );
				this.$content = this.te.$ref
					.contents()
					.filter( function ( i ) {
						var $this = $( this );
						return this.nodeType === Node.TEXT_NODE ||
							!( $this.is( '.mw-cite-backlink' ) ||
								( i === 0 &&
									// Template:Cnote, Template:Note
									( $this.is( 'b' ) ||
										// Template:Note_label
										$this.is( 'a' ) &&
										$this.attr( 'href' ).indexOf( '#ref' ) === 0
									)
								)
							);
					} )
					.clone( true );
				break;
			case 'harvardRef':
				this.id = 'rt-' + this.te.$originalElement.closest( 'li' ).attr( 'id' );
				this.$content = this.te.$ref
					.clone( true )
					.removeAttr( 'id' );
				break;
			case 'commentedText':
				this.id = 'rt-' + String( Math.random() ).slice( 2 );
				this.$content = $( document.createTextNode( this.te.comment ) );
				break;
		}
		if ( !this.$content.length ) {
			return;
		}

		this.insideWindow = Boolean( this.te.$element.closest( '.oo-ui-window' ).length );

		this.$element = $( '<div>' )
			.addClass( 'rt-tooltip' )
			.attr( 'id', this.id )
			.attr( 'role', 'tooltip' )
			.data( 'tooltip', this );
		if ( this.insideWindow ) {
			this.$element.addClass( 'rt-tooltip-insideWindow' );
		}

		// We need the $content interlayer here in order for the settings icon to have correct
		// margins
		this.$content = this.$content
			.wrapAll( '<div>' )
			.parent()
			.addClass( 'rt-tooltipContent' )
			.addClass( 'mw-parser-output' )
			.appendTo( this.$element );

		if ( !activatedByClick ) {
			this.$element
				.mouseenter( function () {
					if ( !tooltip.disappearing ) {
						tooltip.upToTopParent( function () {
							this.show();
						} );
					}
				} )
				.mouseleave( function ( e ) {
					// https://stackoverflow.com/q/47649442 workaround. Relying on relatedTarget
					// alone has pitfalls: when alt-tabbing, relatedTarget is empty too
					if ( CLIENT_NAME !== 'chrome' ||
						( !e.originalEvent ||
							e.originalEvent.relatedTarget !== null ||
							!tooltip.clickedTime ||
							$.now() - tooltip.clickedTime > 50
						)
					) {
						tooltip.upToTopParent( function () {
							this.te.hideRef();
						} );
					}
				} )
				.click( function () {
					tooltip.clickedTime = $.now();
				} );
		}

		if ( !this.insideWindow ) {
			$( '<div>' )
				.addClass( 'rt-settingsLink' )
				.attr( 'title', mw.msg( 'rt-settings' ) )
				.click( function () {
					if ( settingsDialogOpening ) {
						return;
					}
					settingsDialogOpening = true;

					if ( mw.loader.getState( 'oojs-ui' ) !== 'ready' ) {
						if ( cursorWaitCss ) {
							cursorWaitCss.disabled = false;
						} else {
							cursorWaitCss = mw.util.addCSS( 'body { cursor: wait; }' );
						}
					}
					mw.loader.using( [ 'oojs', 'oojs-ui' ], openSettingsDialog );
				} )
				.prependTo( this.$content );
		}

		// Tooltip tail element is inside tooltip content element in order for the tooltip
		// not to disappear when the mouse is above the tail
		this.$tail = $( '<div>' )
			.addClass( 'rt-tooltipTail' )
			.prependTo( this.$element );

		this.disappearing = false;

		this.show = function () {
			this.disappearing = false;
			clearTimeout( this.te.hideTimer );
			clearTimeout( this.te.removeTimer );

			this.$element
				.removeClass( CLASSES.FADE_OUT_DOWN )
				.removeClass( CLASSES.FADE_OUT_UP );

			if ( !this.isPresent ) {
				$body.append( this.$element );
			}

			this.isPresent = true;
		};

		this.hide = function () {
			var tooltip = this;

			tooltip.disappearing = true;

			if ( tooltip.$element.hasClass( 'rt-tooltip-above' ) ) {
				tooltip.$element
					.removeClass( CLASSES.FADE_IN_DOWN )
					.addClass( CLASSES.FADE_OUT_UP );
			} else {
				tooltip.$element
					.removeClass( CLASSES.FADE_IN_UP )
					.addClass( CLASSES.FADE_OUT_DOWN );
			}

			tooltip.te.removeTimer = setTimeout( function () {
				if ( tooltip.isPresent ) {
					tooltip.$element.detach();
					
					tooltip.$tail.css( 'left', '' );

					if ( activatedByClick ) {
						$body.off( 'click.rt touchstart.rt', tooltip.te.onBodyClick );
					}
					$window.off( 'resize.rt', tooltip.te.onWindowResize );

					tooltip.isPresent = false;
				}
			}, 200 );
		};

		this.calculatePosition = function ( ePageX, ePageY ) {
			var teElement, teOffsets, teOffset, tooltipTailOffsetX, tooltipTailLeft,
				offsetYCorrection = 0;

			this.$tail.css( 'left', '' );

			teElement = this.te.$element.get( 0 );
			if ( ePageX !== undefined ) {
				tooltipTailOffsetX = ePageX;
				teOffsets = teElement.getClientRects &&
					teElement.getClientRects() ||
					teElement.getBoundingClientRect();
				if ( teOffsets.length > 1 ) {
					for (var i = teOffsets.length - 1; i >= 0; i--) {
						if ( ePageY >= Math.round( $window.scrollTop() + teOffsets[i].top ) &&
							ePageY <= Math.round(
								$window.scrollTop() + teOffsets[i].top + teOffsets[i].height
							)
						) {
							teOffset = teOffsets[i];
						}
					}
				}
			}

			if ( !teOffset ) {
				teOffset = teElement.getClientRects &&
					teElement.getClientRects()[0] ||
					teElement.getBoundingClientRect();
			}
			teOffset = {
				top: $window.scrollTop() + teOffset.top,
				left: $window.scrollLeft() + teOffset.left,
				width: teOffset.width,
				height: teOffset.height
			};
			if ( !tooltipTailOffsetX ) {
				tooltipTailOffsetX = ( teOffset.left * 2 + teOffset.width ) / 2;
			}
			if ( CLIENT_NAME === 'msie' && this.te.type === 'supRef' ) {
				offsetYCorrection = -Number(
					this.te.$element.parent().css( 'font-size' ).replace( 'px', '' )
				) / 2;
			}
			this.$element.css( {
				top: teOffset.top - this.$element.outerHeight() - 7 + offsetYCorrection,
				left: tooltipTailOffsetX - 20,
				right: ''
			} );

			// Is it squished against the right side of the page?
			if ( this.$element.offset().left + this.$element.outerWidth() > $window.width() - 1 ) {
				this.$element.css( {
					left: '',
					right: 0
				} );
				tooltipTailLeft = tooltipTailOffsetX - this.$element.offset().left - 5;
			}

			// Is a part of it above the top of the screen?
			if ( teOffset.top < this.$element.outerHeight() + $window.scrollTop() + 6 ) {
				this.$element
					.removeClass( 'rt-tooltip-above' )
					.addClass( 'rt-tooltip-below' )
					.addClass( CLASSES.FADE_IN_UP )
					.css( {
						top: teOffset.top + teOffset.height + 9 + offsetYCorrection
					} );
				if ( tooltipTailLeft ) {
					this.$tail.css( 'left', ( tooltipTailLeft + 12 ) + 'px' );
				}
			} else {
				this.$element
					.removeClass( 'rt-tooltip-below' )
					.addClass( 'rt-tooltip-above' )
					.addClass( CLASSES.FADE_IN_DOWN )
					// A fix for cases when a tooltip shown once is then wrongly positioned when it
					// is shown again after a window resize. We just repeat what is above.
					.css( {
						top: teOffset.top - this.$element.outerHeight() - 7 + offsetYCorrection
					} );
				if ( tooltipTailLeft ) {
					// 12 is the tail element width/height
					this.$tail.css( 'left', tooltipTailLeft + 'px' );
				}
			}
		};

		// Run some function for all the tooltips up to the top one in a tree. Its context will be
		// the tooltip, while its parameters may be passed to Tooltip.upToTopParent as an array
		// in the second parameter. If the third parameter passed to ToolTip.upToTopParent is true,
		// the execution stops when the function in question returns true for the first time,
		// and ToolTip.upToTopParent returns true as well.
		this.upToTopParent = function ( func, parameters, stopAtTrue ) {
			var returnValue,
				currentTooltip = this;

			do {
				returnValue = func.apply( currentTooltip, parameters );
				if ( stopAtTrue && returnValue ) {
					break;
				}
			} while ( currentTooltip = currentTooltip.parent );

			if ( stopAtTrue ) {
				return returnValue;
			}
		};
	}

	if ( !enabled ) {
		addEnableLink();
		return;
	}

	teSelector = REF_LINK_SELECTOR;
	if ( tooltipsForComments ) {
		teSelector += ', ' + COMMENTED_TEXT_SELECTOR;
	}
	$content.find( teSelector ).each( function () {
		new TooltippedElement( $( this ) );
	} );
}

settingsString = mw.cookie.get( 'RTsettings', '' );
if ( settingsString ) {
	settings = settingsString.split( '|' );
	enabled = Boolean( Number( settings[ 0 ] ) );
	delay = Number( settings[ 1 ] );
	activatedByClick = Boolean( Number( settings[ 2 ] ) );
	// The forth value was added later, so we provide for a default value. See comments below
	// for why we use "IS_TOUCHSCREEN && IS_MOBILE".
	tooltipsForComments = settings[ 3 ] === undefined ?
		IS_TOUCHSCREEN && IS_MOBILE :
		Boolean( Number( settings[ 3 ] ) );
} else {
	enabled = true;
	delay = 200;
	// Since the mobile browser check is error-prone, adding IS_MOBILE condition here would probably
	// leave cases where a user interacting with the browser using touches doesn't know how to call
	// a tooltip in order to switch to activation by click. Some touch-supporting laptop users
	// interacting by touch (though probably not the most popular use case) would not be happy too.
	activatedByClick = IS_TOUCHSCREEN;
	// Arguably we shouldn't convert native tooltips into gadget tooltips for devices that have
	// mouse support, even if they have touchscreens (there are laptops with touchscreens).
	// IS_TOUCHSCREEN check here is for reliability, since the mobile check is prone to false
	// positives.
	tooltipsForComments = IS_TOUCHSCREEN && IS_MOBILE;
}

mw.hook( 'wikipage.content' ).add( rt );

}() );

Changed text

Open file

// See [[mw:Reference Tooltips]]
// Source https://en.wikipedia.org/wiki/MediaWiki:Gadget-ReferenceTooltips.js

( function () {

// enwiki settings
var REF_LINK_SELECTOR = '.reference, a[href^="#CITEREF"]',
	COMMENTED_TEXT_CLASS = '',
	COMMENTED_TEXT_SELECTOR = ( COMMENTED_TEXT_CLASS ? '.' + COMMENTED_TEXT_CLASS + ', ' : '') +
		'abbr[title]';

mw.messages.set( {
	'rt-settings': 'Подешавања тултипова за референце',
	'rt-enable-footer': 'Омогући тултипове за референце',
	'rt-settings-title': 'Тултипови за референце',
	'rt-save': 'Сачувај',
	'rt-cancel': 'Откажи',
	'rt-enable': 'Омогући',
	'rt-disable': 'Онемогући',
	'rt-activationMethod': 'Начин активирања тултипа',
	'rt-hovering': 'ховеровање',
	'rt-clicking': 'кликање',
	'rt-delay': 'Одлагање пре него што се тултип појави (у милисекундама)',
	'rt-tooltipsForComments': 'Прикажи тултипове изнад <span title="Пример тултипа" class="' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' ) + '" style="border-bottom: 1px dotted; cursor: help;">текст подвучен испрекиданом линијом</span> у стилу тултипова за референце (дозвољава да видите тултипове на уређајима који немају могућност миша)',
	'rt-disabledNote': 'Можете поново омогућити тултипове за референце користећи везу у заглављу странице.',
	'rt-done': 'Урађено',
	'rt-enabled': 'Тултипови за референце су омогућени'
} );

// "Global" variables
var SECONDS_IN_A_DAY = 60 * 60 * 24,
	CLASSES = {
		FADE_IN_DOWN: 'rt-fade-in-down',
		FADE_IN_UP: 'rt-fade-in-up',
		FADE_OUT_DOWN: 'rt-fade-out-down',
		FADE_OUT_UP: 'rt-fade-out-up'
	},
	IS_TOUCHSCREEN = 'ontouchstart' in document.documentElement,
	// Quite a rough check for mobile browsers, a mix of what is advised at
	// https://stackoverflow.com/a/24600597 (sends to
	// https://developer.mozilla.org/en-US/docs/Browser_detection_using_the_user_agent)
	// and https://stackoverflow.com/a/14301832
	IS_MOBILE = /Mobi|Android/i.test( navigator.userAgent ) ||
		typeof window.orientation !== 'undefined',
	CLIENT_NAME = $.client.profile().name,
	settingsString, settings, enabled, delay, activatedByClick, tooltipsForComments, cursorWaitCss,
	windowManager,
	$body = $( document.body ),
	$window = $( window );

function rt( $content ) {
	// Popups gadget
	if ( window.pg ) {
		return;
	}

	var teSelector,
		settingsDialogOpening = false;

	function setSettingsCookie() {
		mw.cookie.set(
			'RTsettings',
			Number( enabled ) + '|' + delay + '|' + Number( activatedByClick ) + '|' +
				Number( tooltipsForComments ),
			{ path: '/', expires: 90 * SECONDS_IN_A_DAY, prefix: '' }
		);
	}

	function enableRt() {
		enabled = true;
		setSettingsCookie();
		$( '.rt-enableItem' ).remove();
		rt( $content );
		mw.notify( mw.msg( 'rt-enabled' ) );
	}

	function disableRt() {
		$content.find( teSelector ).removeClass( 'rt-commentedText' ).off( '.rt' );
		$body.off( '.rt' );
		$window.off( '.rt' );
	}

	function addEnableLink() {
		// #footer-places – Vector
		// #f-list – Timeless, Monobook, Modern
		// parent of #footer li – Cologne Blue
		var $footer = $( '#footer-places, #f-list' );
		if ( !$footer.length ) {
			$footer = $( '#footer li' ).parent();
		}
		$footer.append(
			$( '<li>' )
				.addClass( 'rt-enableItem' )
				.append(
					$( '<a>' )
						.text( mw.msg( 'rt-enable-footer' ) )
						.attr( 'href', 'javascript:' )
						.click( function ( e ) {
							e.preventDefault();
							enableRt();
						} )
			)
		);
	}

	function TooltippedElement( $element ) {
		var tooltip,
			events,
			te = this;

		function onStartEvent( e ) {
			var showRefArgs;

			if ( activatedByClick && te.type !== 'commentedText' && e.type !== 'contextmenu' ) {
				e.preventDefault();
			}
			if ( !te.noRef ) {
				showRefArgs = [ $( this ) ];
				if ( te.type !== 'supRef' ) {
					showRefArgs.push( e.pageX, e.pageY );
				}
				te.showRef.apply( te, showRefArgs );
			}
		}

		function onEndEvent() {
			if ( !te.noRef ) {
				te.hideRef();
			}
		}

		if ( !$element ) {
			return;
		}

		// TooltippedElement.$element and TooltippedElement.$originalElement will be different when
		// the first is changed after its cloned version is hovered in a tooltip
		this.$element = $element;
		this.$originalElement = $element;
		if ( this.$element.is( REF_LINK_SELECTOR ) ) {
			if ( this.$element.prop( 'tagName' ) === 'SUP' ) {
				this.type = 'supRef';
			} else {
				this.type = 'harvardRef';
			}
		} else {
			this.type = 'commentedText';
			this.comment = this.$element.attr( 'title' );
			if ( !this.comment ) {
				return;
			}
			this.$element.addClass('rt-commentedText');
		}
		
		if ( activatedByClick ) {
			events = {
				'click.rt': onStartEvent
			};
			// Adds an ability to see tooltips for links
			if ( this.type === 'commentedText' &&
				( this.$element.closest( 'a' ).length ||
					this.$element.has( 'a' ).length
				)
			) {
				events[ 'contextmenu.rt' ] = onStartEvent;
			}
		} else {
			events = {
				'mouseenter.rt': onStartEvent,
				'mouseleave.rt': onEndEvent
			};
		}

		this.$element.on( events );

		this.hideRef = function ( immediately ) {
			clearTimeout( te.showTimer );

			if ( this.type === 'commentedText' ) {
				this.$element.attr( 'title', this.comment );
			}

			if ( this.tooltip && this.tooltip.isPresent ) {
				if ( activatedByClick || immediately ) {
					this.tooltip.hide();
				} else {
					this.hideTimer = setTimeout( function () {
						te.tooltip.hide();
					}, 200 );
				}
			} else if ( this.$ref && this.$ref.hasClass( 'rt-target' ) ) {
				this.$ref.removeClass( 'rt-target' );
				if ( activatedByClick ) {
					$body.off( 'click.rt touchstart.rt', this.onBodyClick );
				}
			}
		};

		this.showRef = function ( $element, ePageX, ePageY ) {
			// Popups gadget
			if ( window.pg ) {
				disableRt();
				return;
			}
			
			if ( this.tooltip && !this.tooltip.$content.length ) {
				return;
			}

			var tooltipInitiallyPresent = this.tooltip && this.tooltip.isPresent;

			function reallyShow() {
				var viewportTop, refOffsetTop, teHref;

				if ( !te.$ref && !te.comment ) {
					teHref = te.type === 'supRef' ?
						te.$element.find( 'a' ).attr( 'href' ) :
						te.$element.attr( 'href' ); // harvardRef
					te.$ref = teHref &&
						$( '#' + $.escapeSelector( teHref.slice( 1 ) ) );
					if ( !te.$ref || !te.$ref.length || !te.$ref.text() ) {
						te.noRef = true;
						return;
					}
				}

				if ( !tooltipInitiallyPresent && !te.comment ) {
					viewportTop = $window.scrollTop();
					refOffsetTop = te.$ref.offset().top;
					if ( !activatedByClick &&
						viewportTop < refOffsetTop &&
						viewportTop + $window.height() > refOffsetTop + te.$ref.height() &&
						// There can be gadgets/scripts that make references horizontally scrollable.
						$window.width() > te.$ref.offset().left + te.$ref.width()
					) {
						// Highlight the reference itself
						te.$ref.addClass( 'rt-target' );
						return;
					}
				}

				if ( !te.tooltip ) {
					te.tooltip = new Tooltip( te );
					if ( !te.tooltip.$content.length ) {
						return;
					}
				}

				// If this tooltip is called from inside another tooltip. We can't define it
				// in the constructor since a ref can be cloned but have the same Tooltip object;
				// so, Tooltip.parent is a floating value.
				te.tooltip.parent = te.$element.closest( '.rt-tooltip' ).data( 'tooltip' );
				if ( te.tooltip.parent && te.tooltip.parent.disappearing ) {
					return;
				}

				te.tooltip.show();

				if ( tooltipInitiallyPresent ) {
					if ( te.tooltip.$element.hasClass( 'rt-tooltip-above' ) ) {
						te.tooltip.$element.addClass( CLASSES.FADE_IN_DOWN );
					} else {
						te.tooltip.$element.addClass( CLASSES.FADE_IN_UP );
					}
					return;
				}

				te.tooltip.calculatePosition( ePageX, ePageY );

				$window.on( 'resize.rt', te.onWindowResize );
			}

			// We redefine this.$element here because e.target can be a reference link inside
			// a reference tooltip, not a link that was initially assigned to this.$element
			this.$element = $element;

			if ( this.type === 'commentedText' ) {
				this.$element.attr( 'title', '' );
			}

			if ( activatedByClick ) {
				if ( tooltipInitiallyPresent ||
					( this.$ref && this.$ref.hasClass( 'rt-target' ) )
				) {
					return;
				} else {
					setTimeout( function () {
						$body.on( 'click.rt touchstart.rt', te.onBodyClick );
					}, 0 );
				}
			}

			if ( activatedByClick || tooltipInitiallyPresent ) {
				reallyShow();
			} else {
				this.showTimer = setTimeout( reallyShow, delay );
			}
		};

		this.onBodyClick = function ( e ) {
			if ( !te.tooltip && !te.$ref.hasClass( 'rt-target' ) ) {
				return;
			}

			var $current = $( e.target );

			function contextMatchesParameter( parameter ) {
				return this === parameter;
			}

			// The last condition is used to determine cases when a clicked tooltip is the current
			// element's tooltip or one of its descendants
			while ( $current.length &&
				( !$current.hasClass( 'rt-tooltip' ) ||
					!$current.data( 'tooltip' ) ||
					!$current.data( 'tooltip' ).upToTopParent(
						contextMatchesParameter, [ te.tooltip ],
						true
					)
				)
			) {
				$current = $current.parent();
			}
			if ( !$current.length ) {
				te.hideRef();
			}
		};

		this.onWindowResize = function () {
			te.tooltip.calculatePosition();
		};
	}

	function Tooltip( te ) {
		function openSettingsDialog() {
			var settingsDialog, settingsWindow;

			if ( cursorWaitCss ) {
				cursorWaitCss.disabled = true;
			}

			function SettingsDialog() {
				SettingsDialog.parent.call( this );
			}
			OO.inheritClass( SettingsDialog, OO.ui.ProcessDialog );

			SettingsDialog.static.name = 'settingsDialog';
			SettingsDialog.static.title = mw.msg( 'rt-settings-title' );
			SettingsDialog.static.actions = [
				{
					modes: 'basic',
					action: 'save',
					label: mw.msg( 'rt-save' ),
					flags: [ 'primary', 'progressive' ]
				},
				{
					modes: 'basic',
					label: mw.msg( 'rt-cancel' ),
					flags: 'safe'
				},
				{
					modes: 'disabled',
					action: 'deactivated',
					label: mw.msg( 'rt-done' ),
					flags: [ 'primary', 'progressive' ]
				}
			];

			SettingsDialog.prototype.initialize = function () {
				var dialog = this;

				SettingsDialog.parent.prototype.initialize.apply( this, arguments );

				this.enableOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-enable' )
				} );
				this.disableOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-disable' )
				} );
				this.enableSelect = new OO.ui.RadioSelectWidget( {
					items: [ this.enableOption, this.disableOption ],
					classes: [ 'rt-enableSelect' ]
				} );
				this.enableSelect.selectItem( this.enableOption );
				this.enableSelect.on( 'choose', function ( item ) {
					if ( item === dialog.disableOption ) {
						dialog.activationMethodSelect.setDisabled( true );
						dialog.delayInput.setDisabled( true );
						dialog.tooltipsForCommentsCheckbox.setDisabled( true );
					} else {
						dialog.activationMethodSelect.setDisabled( false );
						dialog.delayInput.setDisabled( dialog.clickOption.isSelected() );
						dialog.tooltipsForCommentsCheckbox.setDisabled( false );
					}
				} );

				this.hoverOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-hovering' )
				} );
				this.clickOption = new OO.ui.RadioOptionWidget( {
					label: mw.msg( 'rt-clicking' )
				} );
				this.activationMethodSelect = new OO.ui.RadioSelectWidget( {
					items: [ this.hoverOption, this.clickOption ]
				} );
				this.activationMethodSelect.selectItem( activatedByClick ?
					this.clickOption :
					this.hoverOption
				);
				this.activationMethodSelect.on( 'choose', function ( item ) {
					if ( item === dialog.clickOption ) {
						dialog.delayInput.setDisabled( true );
					} else {
						dialog.delayInput.setDisabled( dialog.clickOption.isSelected() );
					}
				} );
				this.activationMethodField = new OO.ui.FieldLayout( this.activationMethodSelect, {
					label: mw.msg( 'rt-activationMethod' ),
					align: 'top'
				} );

				this.delayInput = new OO.ui.NumberInputWidget( {
					input: { value: delay },
					step: 50,
					min: 0,
					max: 5000,
					disabled: activatedByClick,
					classes: [ 'rt-numberInput' ]
				} );
				this.delayField = new OO.ui.FieldLayout( this.delayInput, {
					label: mw.msg( 'rt-delay' ),
					align: 'top'
				} );

				this.tooltipsForCommentsCheckbox = new OO.ui.CheckboxInputWidget( {
					selected: tooltipsForComments
				} );
				this.tooltipsForCommentsField = new OO.ui.FieldLayout(
					this.tooltipsForCommentsCheckbox,
					{
						label: new OO.ui.HtmlSnippet( mw.msg( 'rt-tooltipsForComments' ) ),
						align: 'inline',
						classes: [ 'rt-tooltipsForCommentsField' ]
					}
				);
				new TooltippedElement(
					this.tooltipsForCommentsField.$element.find(
						'.' + ( COMMENTED_TEXT_CLASS || 'rt-commentedText' )
					)
				);

				this.fieldset = new OO.ui.FieldsetLayout();
				this.fieldset.addItems( [
					this.activationMethodField,
					this.delayField,
					this.tooltipsForCommentsField
				] );

				this.panelSettings = new OO.ui.PanelLayout( {
					padded: true,
					expanded: false
				} );
				this.panelSettings.$element.append(
					this.enableSelect.$element,
					$( '<hr>' ).addClass( 'rt-settingsFormSeparator' ),
					this.fieldset.$element
				);

				this.panelDisabled = new OO.ui.PanelLayout( {
					padded: true,
					expanded: false
				} );
				this.panelDisabled.$element.append(
					$( '<table>' )
						.addClass( 'rt-disabledHelp' )
						.append(
							$( '<tr>' ).append(
								$( '<td>' ).append(
									$( '<img>' ).attr( 'src', 'https://en.wikipedia.org/w/load.php?modules=ext.popups.images&image=footer&format=rasterized&lang=ru&skin=vector&version=0uotisb' )
								),
								$( '<td>' )
									.addClass( 'rt-disabledNote' )
									.text( mw.msg( 'rt-disabledNote' ) )
							)
						)
				);

				this.stackLayout = new OO.ui.StackLayout( {
					items: [ this.panelSettings, this.panelDisabled ]
				} );

				this.$body.append( this.stackLayout.$element );
			};

			SettingsDialog.prototype.getSetupProcess = function ( data ) {
				return SettingsDialog.parent.prototype.getSetupProcess.call( this, data )
					.next( function () {
						this.stackLayout.setItem( this.panelSettings );
						this.actions.setMode( 'basic' );
					}, this );
			};

			SettingsDialog.prototype.getActionProcess = function ( action ) {
				var dialog = this;

				if ( action === 'save' ) {
					return new OO.ui.Process( function () {
						var newDelay = Number( dialog.delayInput.getValue() );

						enabled = dialog.enableOption.isSelected();
						if ( newDelay >= 0 && newDelay <= 5000 ) {
							delay = newDelay;
						}
						activatedByClick = dialog.clickOption.isSelected();
						tooltipsForComments = dialog.tooltipsForCommentsCheckbox.isSelected();

						setSettingsCookie();

						if ( enabled ) {
							dialog.close();
							disableRt();
							rt( $content );
						} else {
							dialog.actions.setMode( 'disabled' );
							dialog.stackLayout.setItem( dialog.panelDisabled );
							disableRt();
							addEnableLink();
						}
					} );
				} else if ( action === 'deactivated' ) {
					dialog.close();
				}
				return SettingsDialog.parent.prototype.getActionProcess.call( this, action );
			};

			SettingsDialog.prototype.getBodyHeight = function () {
				return this.stackLayout.getCurrentItem().$element.outerHeight( true );
			};

			tooltip.upToTopParent( function adjustRightAndHide() {
				if ( this.isPresent ) {
					if ( this.$element[ 0 ].style.right ) {
						this.$element.css(
							'right',
							'+=' + ( window.innerWidth - $window.width() )
						);
					}
					this.te.hideRef( true );
				}
			} );

			if ( !windowManager ) {
				windowManager = new OO.ui.WindowManager();
				$body.append( windowManager.$element );
			}

			settingsDialog = new SettingsDialog();
			windowManager.addWindows( [ settingsDialog ] );
			settingsWindow = windowManager.openWindow( settingsDialog );
			settingsWindow.opened.then( function () {
				settingsDialogOpening = false;
			} );
			settingsWindow.closed.then( function () {
				windowManager.clearWindows();
			} );
		}

		var tooltip = this;

		// This variable can change: one tooltip can be called from a harvard-style reference link
		// that is put into different tooltips
		this.te = te;

		switch ( this.te.type ) {
			case 'supRef':
				this.id = 'rt-' + this.te.$originalElement.attr( 'id' );
				this.$content = this.te.$ref
					.contents()
					.filter( function ( i ) {
						var $this = $( this );
						return this.nodeType === Node.TEXT_NODE ||
							!( $this.is( '.mw-cite-backlink' ) ||
								( i === 0 &&
									// Template:Cnote, Template:Note
									( $this.is( 'b' ) ||
										// Template:Note_label
										$this.is( 'a' ) &&
										$this.attr( 'href' ).indexOf( '#ref' ) === 0
									)
								)
							);
					} )
					.clone( true );
				break;
			case 'harvardRef':
				this.id = 'rt-' + this.te.$originalElement.closest( 'li' ).attr( 'id' );
				this.$content = this.te.$ref
					.clone( true )
					.removeAttr( 'id' );
				break;
			case 'commentedText':
				this.id = 'rt-' + String( Math.random() ).slice( 2 );
				this.$content = $( document.createTextNode( this.te.comment ) );
				break;
		}
		if ( !this.$content.length ) {
			return;
		}

		this.insideWindow = Boolean( this.te.$element.closest( '.oo-ui-window' ).length );

		this.$element = $( '<div>' )
			.addClass( 'rt-tooltip' )
			.attr( 'id', this.id )
			.attr( 'role', 'tooltip' )
			.data( 'tooltip', this );
		if ( this.insideWindow ) {
			this.$element.addClass( 'rt-tooltip-insideWindow' );
		}

		// We need the $content interlayer here in order for the settings icon to have correct
		// margins
		this.$content = this.$content
			.wrapAll( '<div>' )
			.parent()
			.addClass( 'rt-tooltipContent' )
			.addClass( 'mw-parser-output' )
			.appendTo( this.$element );

		if ( !activatedByClick ) {
			this.$element
				.mouseenter( function () {
					if ( !tooltip.disappearing ) {
						tooltip.upToTopParent( function () {
							this.show();
						} );
					}
				} )
				.mouseleave( function ( e ) {
					// https://stackoverflow.com/q/47649442 workaround. Relying on relatedTarget
					// alone has pitfalls: when alt-tabbing, relatedTarget is empty too
					if ( CLIENT_NAME !== 'chrome' ||
						( !e.originalEvent ||
							e.originalEvent.relatedTarget !== null ||
							!tooltip.clickedTime ||
							$.now() - tooltip.clickedTime > 50
						)
					) {
						tooltip.upToTopParent( function () {
							this.te.hideRef();
						} );
					}
				} )
				.click( function () {
					tooltip.clickedTime = $.now();
				} );
		}

		if ( !this.insideWindow ) {
			$( '<div>' )
				.addClass( 'rt-settingsLink' )
				.attr( 'title', mw.msg( 'rt-settings' ) )
				.click( function () {
					if ( settingsDialogOpening ) {
						return;
					}
					settingsDialogOpening = true;

					if ( mw.loader.getState( 'oojs-ui' ) !== 'ready' ) {
						if ( cursorWaitCss ) {
							cursorWaitCss.disabled = false;
						} else {
							cursorWaitCss = mw.util.addCSS( 'body { cursor: wait; }' );
						}
					}
					mw.loader.using( [ 'oojs', 'oojs-ui' ], openSettingsDialog );
				} )
				.prependTo( this.$content );
		}

		// Tooltip tail element is inside tooltip content element in order for the tooltip
		// not to disappear when the mouse is above the tail
		this.$tail = $( '<div>' )
			.addClass( 'rt-tooltipTail' )
			.prependTo( this.$element );

		this.disappearing = false;

		this.show = function () {
			this.disappearing = false;
			clearTimeout( this.te.hideTimer );
			clearTimeout( this.te.removeTimer );

			this.$element
				.removeClass( CLASSES.FADE_OUT_DOWN )
				.removeClass( CLASSES.FADE_OUT_UP );

			if ( !this.isPresent ) {
				$body.append( this.$element );
			}

			this.isPresent = true;
		};

		this.hide = function () {
			var tooltip = this;

			tooltip.disappearing = true;

			if ( tooltip.$element.hasClass( 'rt-tooltip-above' ) ) {
				tooltip.$element
					.removeClass( CLASSES.FADE_IN_DOWN )
					.addClass( CLASSES.FADE_OUT_UP );
			} else {
				tooltip.$element
					.removeClass( CLASSES.FADE_IN_UP )
					.addClass( CLASSES.FADE_OUT_DOWN );
			}

			tooltip.te.removeTimer = setTimeout( function () {
				if ( tooltip.isPresent ) {
					tooltip.$element.detach();
					
					tooltip.$tail.css( 'left', '' );

					if ( activatedByClick ) {
						$body.off( 'click.rt touchstart.rt', tooltip.te.onBodyClick );
					}
					$window.off( 'resize.rt', tooltip.te.onWindowResize );

					tooltip.isPresent = false;
				}
			}, 200 );
		};

		this.calculatePosition = function ( ePageX, ePageY ) {
			var teElement, teOffsets, teOffset, tooltipTailOffsetX, tooltipTailLeft,
				offsetYCorrection = 0;

			this.$tail.css( 'left', '' );

			teElement = this.te.$element.get( 0 );
			if ( ePageX !== undefined ) {
				tooltipTailOffsetX = ePageX;
				teOffsets = teElement.getClientRects &&
					teElement.getClientRects() ||
					teElement.getBoundingClientRect();
				if ( teOffsets.length > 1 ) {
					for (var i = teOffsets.length - 1; i >= 0; i--) {
						if ( ePageY >= Math.round( $window.scrollTop() + teOffsets[i].top ) &&
							ePageY <= Math.round(
								$window.scrollTop() + teOffsets[i].top + teOffsets[i].height
							)
						) {
							teOffset = teOffsets[i];
						}
					}
				}
			}

			if ( !teOffset ) {
				teOffset = teElement.getClientRects &&
					teElement.getClientRects()[0] ||
					teElement.getBoundingClientRect();
			}
			teOffset = {
				top: $window.scrollTop() + teOffset.top,
				left: $window.scrollLeft() + teOffset.left,
				width: teOffset.width,
				height: teOffset.height
			};
			if ( !tooltipTailOffsetX ) {
				tooltipTailOffsetX = ( teOffset.left * 2 + teOffset.width ) / 2;
			}
			if ( CLIENT_NAME === 'msie' && this.te.type === 'supRef' ) {
				offsetYCorrection = -Number(
					this.te.$element.parent().css( 'font-size' ).replace( 'px', '' )
				) / 2;
			}
			this.$element.css( {
				top: teOffset.top - this.$element.outerHeight() - 7 + offsetYCorrection,
				left: tooltipTailOffsetX - 20,
				right: ''
			} );

			// Is it squished against the right side of the page?
			if ( this.$element.offset().left + this.$element.outerWidth() > $window.width() - 1 ) {
				this.$element.css( {
					left: '',
					right: 0
				} );
				tooltipTailLeft = tooltipTailOffsetX - this.$element.offset().left - 5;
			}

			// Is a part of it above the top of the screen?
			if ( teOffset.top < this.$element.outerHeight() + $window.scrollTop() + 6 ) {
				this.$element
					.removeClass( 'rt-tooltip-above' )
					.addClass( 'rt-tooltip-below' )
					.addClass( CLASSES.FADE_IN_UP )
					.css( {
						top: teOffset.top + teOffset.height + 9 + offsetYCorrection
					} );
				if ( tooltipTailLeft ) {
					this.$tail.css( 'left', ( tooltipTailLeft + 12 ) + 'px' );
				}
			} else {
				this.$element
					.removeClass( 'rt-tooltip-below' )
					.addClass( 'rt-tooltip-above' )
					.addClass( CLASSES.FADE_IN_DOWN )
					// A fix for cases when a tooltip shown once is then wrongly positioned when it
					// is shown again after a window resize. We just repeat what is above.
					.css( {
						top: teOffset.top - this.$element.outerHeight() - 7 + offsetYCorrection
					} );
				if ( tooltipTailLeft ) {
					// 12 is the tail element width/height
					this.$tail.css( 'left', tooltipTailLeft + 'px' );
				}
			}
		};

		// Run some function for all the tooltips up to the top one in a tree. Its context will be
		// the tooltip, while its parameters may be passed to Tooltip.upToTopParent as an array
		// in the second parameter. If the third parameter passed to ToolTip.upToTopParent is true,
		// the execution stops when the function in question returns true for the first time,
		// and ToolTip.upToTopParent returns true as well.
		this.upToTopParent = function ( func, parameters, stopAtTrue ) {
			var returnValue,
				currentTooltip = this;

			do {
				returnValue = func.apply( currentTooltip, parameters );
				if ( stopAtTrue && returnValue ) {
					break;
				}
			} while ( currentTooltip = currentTooltip.parent );

			if ( stopAtTrue ) {
				return returnValue;
			}
		};
	}

	if ( !enabled ) {
		addEnableLink();
		return;
	}

	teSelector = REF_LINK_SELECTOR;
	if ( tooltipsForComments ) {
		teSelector += ', ' + COMMENTED_TEXT_SELECTOR;
	}
	$content.find( teSelector ).each( function () {
		new TooltippedElement( $( this ) );
	} );
}

settingsString = mw.cookie.get( 'RTsettings', '' );
if ( settingsString ) {
	settings = settingsString.split( '|' );
	enabled = Boolean( Number( settings[ 0 ] ) );
	delay = Number( settings[ 1 ] );
	activatedByClick = Boolean( Number( settings[ 2 ] ) );
	// The forth value was added later, so we provide for a default value. See comments below
	// for why we use "IS_TOUCHSCREEN && IS_MOBILE".
	tooltipsForComments = settings[ 3 ] === undefined ?
		IS_TOUCHSCREEN && IS_MOBILE :
		Boolean( Number( settings[ 3 ] ) );
} else {
	enabled = true;
	delay = 200;
	// Since the mobile browser check is error-prone, adding IS_MOBILE condition here would probably
	// leave cases where a user interacting with the browser using touches doesn't know how to call
	// a tooltip in order to switch to activation by click. Some touch-supporting laptop users
	// interacting by touch (though probably not the most popular use case) would not be happy too.
	activatedByClick = IS_TOUCHSCREEN;
	// Arguably we shouldn't convert native tooltips into gadget tooltips for devices that have
	// mouse support, even if they have touchscreens (there are laptops with touchscreens).
	// IS_TOUCHSCREEN check here is for reliability, since the mobile check is prone to false
	// positives.
	tooltipsForComments = IS_TOUCHSCREEN && IS_MOBILE;
}

mw.hook( 'wikipage.content' ).add( rt );

}() );