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* 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 {BaseComponent} from '../../../coral-base-component';
import BaseTableSection from './BaseTableSection';
import {transform} from '../../../coral-utils';
import {Decorator} from '../../../coral-decorator';
const CLASSNAME = '_coral-Table-head';
/**
@class Coral.Table.Head
@classdesc A Table head component
@htmltag coral-table-head
@htmlbasetag thead
@extends {HTMLTableSectionElement}
@extends {BaseComponent}
@extends {BaseTableSection}
*/
const TableHead = Decorator(class extends BaseTableSection(BaseComponent(HTMLTableSectionElement)) {
/** @ignore */
constructor() {
super();
this._toggleObserver(true);
}
/**
Whether the table head is sticky. The table content becomes automatically scrollable if the table wrapper height
is smaller than its content.
Table exposes the <code>coral-table-scroll</code> attribute that allows in sticky mode to define the table
scrolling container max-height. This is particularly useful if the table contains dynamic content.
@type {Boolean}
@default false
@htmlattribute sticky
@htmlattributereflected
*/
get sticky() {
return this._sticky || false;
}
set sticky(value) {
this._sticky = transform.booleanAttr(value);
this._reflectAttribute('sticky', this._sticky);
// Delay execution for better performance
window.requestAnimationFrame(() => {
this.trigger('coral-table-head:_stickychanged');
});
}
/** @ignore */
static get observedAttributes() {
return super.observedAttributes.concat(['sticky']);
}
/** @ignore */
render() {
super.render();
this.classList.add(CLASSNAME);
}
/**
Triggered when the {@link TableHead} content changed.
@typedef {CustomEvent} coral-table-head:_contentchanged
@private
*/
/**
Triggered when {@link TableHead#sticky} changed.
@typedef {CustomEvent} coral-table-head:_stickychanged
@private
*/
});
export default TableHead;
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