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cloner.js
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cloner.js
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/*
* HTMLForm enhancements:
* Add/remove cloner clones without having to resubmit the form.
*/
let cloneCounter = 0;
/**
* Appends a new row with fields to the cloner.
*
* @ignore
* @param {jQuery} $createButton
*/
function appendToCloner( $createButton ) {
const $ul = $createButton.prev( 'ul.mw-htmlform-cloner-ul' ),
cloneRegex = new RegExp( mw.util.escapeRegExp( $ul.data( 'uniqueId' ) ), 'g' ),
// Assume the ids that need to be made unique will start with 'ooui-php-'. See T274533
inputIdRegex = new RegExp( /(ooui-php-[0-9]*)/, 'gm' );
++cloneCounter;
const html = $ul.data( 'template' )
.replace( cloneRegex, 'clone' + cloneCounter )
.replace( inputIdRegex, '$1-clone' + cloneCounter );
const $li = $( '<li>' )
.addClass( 'mw-htmlform-cloner-li' )
.html( html )
.appendTo( $ul );
mw.hook( 'htmlform.enhance' ).fire( $li );
}
mw.hook( 'htmlform.enhance' ).add( ( $root ) => {
const $deleteElement = $root.find( '.mw-htmlform-cloner-delete-button' ),
$createElement = $root.find( '.mw-htmlform-cloner-create-button' );
$deleteElement.each( function () {
const $element = $( this );
// eslint-disable-next-line no-jquery/no-class-state
if ( $element.hasClass( 'oo-ui-widget' ) ) {
const deleteButton = OO.ui.infuse( $element );
deleteButton.on( 'click', () => {
deleteButton.$element.closest( 'li.mw-htmlform-cloner-li' ).remove();
} );
} else {
// eslint-disable-next-line no-jquery/no-sizzle
$element.filter( ':input' ).on( 'click', function ( e ) {
e.preventDefault();
$( this ).closest( 'li.mw-htmlform-cloner-li' ).remove();
} );
}
} );
$createElement.each( function () {
const $element = $( this );
// eslint-disable-next-line no-jquery/no-class-state
if ( $element.hasClass( 'oo-ui-widget' ) ) {
const createButton = OO.ui.infuse( $element );
createButton.on( 'click', () => {
appendToCloner( createButton.$element );
} );
} else {
// eslint-disable-next-line no-jquery/no-sizzle
$element.filter( ':input' ).on( 'click', function ( e ) {
e.preventDefault();
appendToCloner( $( this ) );
} );
}
} );
} );

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