56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
import $ from 'jquery';
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import { loadCSSFile } from '../lib/utils/css_utils';
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let instanceCount = 0;
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class AutoWidthDropdownSelect {
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constructor(selectElement) {
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this.$selectElement = $(selectElement);
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this.dropdownClass = `js-auto-width-select-dropdown-${instanceCount}`;
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instanceCount += 1;
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}
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init() {
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const { dropdownClass } = this;
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import(/* webpackChunkName: 'select2' */ 'select2/select2')
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.then(() => {
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// eslint-disable-next-line promise/no-nesting
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loadCSSFile(gon.select2_css_path)
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.then(() => {
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this.$selectElement.select2({
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dropdownCssClass: dropdownClass,
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...AutoWidthDropdownSelect.selectOptions(this.dropdownClass),
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});
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})
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.catch(() => {});
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})
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.catch(() => {});
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return this;
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}
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static selectOptions(dropdownClass) {
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return {
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dropdownCss() {
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let resultantWidth = 'auto';
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const $dropdown = $(`.${dropdownClass}`);
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// We have to look at the parent because
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// `offsetParent` on a `display: none;` is `null`
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const offsetParentWidth = $(this).parent().offsetParent().width();
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// Reset any width to let it naturally flow
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$dropdown.css('width', 'auto');
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if ($dropdown.outerWidth(false) > offsetParentWidth) {
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resultantWidth = offsetParentWidth;
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}
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return {
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width: resultantWidth,
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maxWidth: offsetParentWidth,
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};
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},
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};
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}
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}
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export default AutoWidthDropdownSelect;
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