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multiselect.js
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multiselect.js
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/*
* HTMLForm enhancements:
* Convert multiselect fields from checkboxes to Chosen selector when requested.
*/
function convertCheckboxesWidgetToTags( fieldLayout ) {
const checkboxesWidget = fieldLayout.fieldWidget;
const checkboxesOptions = checkboxesWidget.checkboxMultiselectWidget.getItems();
const menuTagOptions = checkboxesOptions.map( ( option ) => new OO.ui.MenuOptionWidget( {
data: option.getData(),
label: option.getLabel(),
disabled: option.disabled // Don't take the state of parent elements into account.
} ) );
const fieldData = checkboxesWidget.data || {};
const menuTagWidget = new OO.ui.MenuTagMultiselectWidget( {
$overlay: true,
menu: {
items: menuTagOptions
},
disabled: checkboxesWidget.isDisabled(),
placeholder: fieldData.placeholder || ''
} );
menuTagWidget.setValue( checkboxesWidget.getValue() );
menuTagOptions.forEach( ( option ) => {
if ( option.disabled ) {
const tagItem = menuTagWidget.findItemFromData( option.getData() );
// When this disabled option is selected by default.
if ( tagItem ) {
tagItem.setFixed( true );
}
}
} );
// Data from TagMultiselectWidget will not be submitted with the form, so keep the original
// CheckboxMultiselectInputWidget up-to-date.
menuTagWidget.on( 'change', () => {
checkboxesWidget.setValue( menuTagWidget.getValue() );
} );
// Synchronize the disable state for submission, and set the proper state of the label.
menuTagWidget.on( 'disable', ( isDisabled ) => {
checkboxesWidget.setDisabled( isDisabled );
} );
// Change the connected fieldWidget to the new one, so other scripts can infuse the layout
// and make changes to this widget.
fieldLayout.fieldWidget = menuTagWidget;
// Hide original widget and add new one in its place.
checkboxesWidget.toggle( false );
checkboxesWidget.$element.after( menuTagWidget.$element );
}
mw.hook( 'htmlform.enhance' ).add( ( $root ) => {
const $dropdowns = $root.find( '.mw-htmlform-dropdown:not(.oo-ui-widget)' );
if ( $dropdowns.length ) {
$dropdowns.each( function () {
const $el = $( this );
if ( $el.is( '[data-ooui]' ) ) {
// Avoid kicks in multiple times and causing a mess
if ( $el.find( '.oo-ui-menuTagMultiselectWidget' ).length ) {
return;
}
// Load 'oojs-ui-widgets' for TagMultiselectWidget
const modules = [ 'mediawiki.htmlform.ooui', 'oojs-ui-widgets' ];
const data = $el.data( 'mw-modules' );
if ( data ) {
// We can trust this value, 'data-mw-*' attributes are banned from user content in Sanitizer
const extraModules = data.split( ',' );
modules.push( ...extraModules );
}
mw.loader.using( modules, () => {
convertCheckboxesWidgetToTags( OO.ui.FieldLayout.static.infuse( $el ) );
} );
}
} );
}
} );

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