@adobe/coral-spectrum
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Coral Spectrum is a JavaScript library of Web Components following Spectrum design patterns.
51 lines (43 loc) • 1.98 kB
JavaScript
/**
* Copyright 2019 Adobe. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
import {commons} from '../../../coral-utils';
/** @ignore */
export default function getFirstSelectableWrappedItem(wrapperItem) {
// util method to get first selectable item inside a wrapper item
if (!wrapperItem) {
return null;
}
if (wrapperItem.hasAttribute('coral-actionbar-more')) {
// more buttons are no 'real' actionbar items => not wrapped
return wrapperItem;
}
let child = null;
for (let i = 0 ; i < wrapperItem.children.length ; i++) {
child = wrapperItem.children[i];
// maybe filter even more elements? (opacity, display='none', position='absolute' ...)
if (child.offsetParent && (child.matches(commons.FOCUSABLE_ELEMENT_SELECTOR) || child.matches('a:not([href])')) && !child.hasAttribute('disabled')) {
return child;
}
}
// search at 2nd level, some elements like coral-fileupload has selectable items inside them
for (let i = 0 ; i < wrapperItem.children.length ; i++) {
child = wrapperItem.children[i];
for (let j = 0 ; j < child.children.length ; j++) {
let subChild = child.children[j];
// maybe filter even more elements? (opacity, display='none', position='absolute' ...)
if (subChild.offsetParent && (subChild.matches(commons.FOCUSABLE_ELEMENT_SELECTOR) || child.matches('a:not([href])'))) {
return subChild;
}
}
}
return null;
}