VectorGOLEM/resources/skins.vector.js/dropdownMenus.js

103 lines
3.3 KiB
JavaScript

/** @interface CheckboxHack */
var
checkboxHack = /** @type {CheckboxHack} */ require( /** @type {string} */( 'mediawiki.page.ready' ) ).checkboxHack,
CHECKBOX_HACK_CONTAINER_SELECTOR = '.vector-menu-dropdown',
CHECKBOX_HACK_CHECKBOX_SELECTOR = '.vector-menu-checkbox',
// In core's checkboxHack.js, it is recommended to use a label element as a
// button that toggles the checkbox. In Vector's dropdown menus that use the
// Menu.mustache template, a checkbox is used as both the "button" and the
// "checkbox".
CHECKBOX_HACK_BUTTON_SELECTOR = '.vector-menu-checkbox',
CHECKBOX_HACK_TARGET_SELECTOR = '.vector-menu-content';
/**
* Add the ability for users to toggle dropdown menus using the enter key (as
* well as space) using core's checkboxHack.
*/
function bindToggleOnSpaceEnter() {
// Search for all dropdown containers using the CHECKBOX_HACK_CONTAINER_SELECTOR.
var containers = document.querySelectorAll( CHECKBOX_HACK_CONTAINER_SELECTOR );
Array.prototype.forEach.call( containers, function ( container ) {
var
checkbox = container.querySelector( CHECKBOX_HACK_CHECKBOX_SELECTOR ),
button = container.querySelector( CHECKBOX_HACK_BUTTON_SELECTOR ),
target = container.querySelector( CHECKBOX_HACK_TARGET_SELECTOR );
if ( !( checkbox && button && target ) ) {
return;
}
checkboxHack.bindToggleOnSpaceEnter( checkbox, button );
} );
}
/**
* Make sure that clicking outside a menu closes it.
*/
function closeDropdownsOnClickOutside() {
$( document.body ).on( 'click', function ( ev ) {
var $closestPortlet = $( ev.target ).closest( '.mw-portlet' );
// Uncheck (close) any menus that are open.
// eslint-disable-next-line no-jquery/no-global-selector
$( '.vector-menu-checkbox:checked' ).not(
$closestPortlet.find( '.vector-menu-checkbox' )
).prop( 'checked', false );
} );
}
/**
* Adds icon placeholder for gadgets to use.
*
* @typedef {Object} PortletLinkData
* @property {string|null} id
*/
/**
* @param {HTMLElement} item
* @param {PortletLinkData} data
*/
function addPortletLinkHandler( item, data ) {
var link = item.querySelector( 'a' );
var $menu = $( item ).parents( '.vector-menu' );
var menuElement = $menu.length && $menu.get( 0 ) || null;
// Dropdowns which have not got the noicon class are icon capable.
var isIconCapable = menuElement && menuElement.classList.contains(
'vector-menu-dropdown'
) && !menuElement.classList.contains(
'vector-menu-dropdown-noicon'
);
if ( isIconCapable && data.id && link ) {
// If class was previously added this will be a no-op so it is safe to call even
// if we've previously enhanced it.
// eslint-disable-next-line mediawiki/class-doc
link.classList.add(
'mw-ui-icon',
'mw-ui-icon-before',
// The following class allows gadgets developers to style or hide an icon.
// * mw-ui-icon-vector-gadget-<id>
// The class is considered stable and should not be removed without
// a #user-notice.
'mw-ui-icon-vector-gadget-' + data.id
);
}
}
// Enhance previously added items.
Array.prototype.forEach.call(
document.querySelectorAll( '.mw-list-item-js' ),
function ( item ) {
addPortletLinkHandler( item, {
id: item.getAttribute( 'id' )
} );
}
);
mw.hook( 'util.addPortletLink' ).add( addPortletLinkHandler );
module.exports = function dropdownMenus() {
closeDropdownsOnClickOutside();
bindToggleOnSpaceEnter();
};