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f9628f883d
This will move the settings button back to the right, like known from older versions. For this, the overflow-menu was changed when a setting button is available. If no settings button is available, the behavior will not change. Fixes #3301
220 lines
8.6 KiB
JavaScript
220 lines
8.6 KiB
JavaScript
import {throttle} from 'throttle-debounce';
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import {createTippy} from '../modules/tippy.js';
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import {isDocumentFragmentOrElementNode} from '../utils/dom.js';
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import octiconKebabHorizontal from '../../../public/assets/img/svg/octicon-kebab-horizontal.svg';
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window.customElements.define('overflow-menu', class extends HTMLElement {
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updateItems = throttle(100, () => {
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if (!this.tippyContent) {
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const div = document.createElement('div');
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div.classList.add('tippy-target');
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div.tabIndex = '-1'; // for initial focus, programmatic focus only
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div.addEventListener('keydown', (e) => {
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if (e.key === 'Tab') {
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const items = this.tippyContent.querySelectorAll('[role="menuitem"]');
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if (e.shiftKey) {
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if (document.activeElement === items[0]) {
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e.preventDefault();
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items[items.length - 1].focus();
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}
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} else {
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if (document.activeElement === items[items.length - 1]) {
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e.preventDefault();
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items[0].focus();
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}
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}
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} else if (e.key === 'Escape') {
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e.preventDefault();
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e.stopPropagation();
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this.button._tippy.hide();
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this.button.focus();
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} else if (e.key === ' ' || e.code === 'Enter') {
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if (document.activeElement?.matches('[role="menuitem"]')) {
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e.preventDefault();
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e.stopPropagation();
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document.activeElement.click();
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}
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} else if (e.key === 'ArrowDown') {
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if (document.activeElement?.matches('.tippy-target')) {
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e.preventDefault();
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e.stopPropagation();
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document.activeElement.querySelector('[role="menuitem"]:first-of-type').focus();
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} else if (document.activeElement?.matches('[role="menuitem"]')) {
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e.preventDefault();
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e.stopPropagation();
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document.activeElement.nextElementSibling?.focus();
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}
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} else if (e.key === 'ArrowUp') {
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if (document.activeElement?.matches('.tippy-target')) {
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e.preventDefault();
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e.stopPropagation();
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document.activeElement.querySelector('[role="menuitem"]:last-of-type').focus();
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} else if (document.activeElement?.matches('[role="menuitem"]')) {
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e.preventDefault();
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e.stopPropagation();
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document.activeElement.previousElementSibling?.focus();
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}
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}
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});
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this.append(div);
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this.tippyContent = div;
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}
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// move items in tippy back into the menu items for subsequent measurement
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for (const item of this.tippyItems || []) {
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this.menuItemsEl.append(item);
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}
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// measure which items are partially outside the element and move them into the button menu
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this.tippyItems = [];
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const menuRight = this.offsetLeft + this.offsetWidth;
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const menuItems = this.menuItemsEl.querySelectorAll('.item');
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const settingItem = this.menuItemsEl.querySelector('#settings-btn');
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for (const item of menuItems) {
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const itemRight = item.offsetLeft + item.offsetWidth;
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// Width of the settings button plus a small value to get the next item to the left if there is directly one
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// If no setting button is in the menu the default threshold is 38 - roughly the width of .overflow-menu-button
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const overflowBtnThreshold = 38;
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const threshold = settingItem?.offsetWidth ?? overflowBtnThreshold;
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// If we have a settings item on the right-hand side, we must also check if the first,
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// possibly overflowing item would still fit on the left-hand side of the overflow menu
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// If not, it must be added to the array (twice). The duplicate is removed with the shift.
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if (settingItem && !this.tippyItems?.length && item !== settingItem && menuRight - itemRight < overflowBtnThreshold) {
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this.tippyItems.push(settingItem);
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}
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if (menuRight - itemRight < threshold) {
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this.tippyItems.push(item);
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}
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}
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// Special handling for settings button on right. Only done if a setting item is present
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if (settingItem) {
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// If less than 2 items overflow, remove all items (only settings "overflowed" - because it's on the right side)
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if (this.tippyItems?.length < 2) {
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this.tippyItems = [];
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} else {
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// Remove the first item of the list, because we have always one item more in the array due to the big threshold above
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this.tippyItems.shift();
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}
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}
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// if there are no overflown items, remove any previously created button
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if (!this.tippyItems?.length) {
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const btn = this.querySelector('.overflow-menu-button');
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btn?._tippy?.destroy();
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btn?.remove();
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return;
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}
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// remove aria role from items that moved from tippy to menu
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for (const item of menuItems) {
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if (!this.tippyItems.includes(item)) {
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item.removeAttribute('role');
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}
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}
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// move all items that overflow into tippy
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for (const item of this.tippyItems) {
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item.setAttribute('role', 'menuitem');
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this.tippyContent.append(item);
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}
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// update existing tippy
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if (this.button?._tippy) {
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this.button._tippy.setContent(this.tippyContent);
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return;
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}
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// create button initially
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const btn = document.createElement('button');
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btn.classList.add('overflow-menu-button', 'btn', 'tw-px-2', 'hover:tw-text-text-dark');
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btn.setAttribute('aria-label', window.config.i18n.more_items);
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btn.innerHTML = octiconKebabHorizontal;
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this.append(btn);
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this.button = btn;
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createTippy(btn, {
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trigger: 'click',
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hideOnClick: true,
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interactive: true,
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placement: 'bottom-end',
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role: 'menu',
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content: this.tippyContent,
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onShow: () => { // FIXME: onShown doesn't work (never be called)
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setTimeout(() => {
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this.tippyContent.focus();
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}, 0);
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},
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});
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});
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init() {
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// for horizontal menus where fomantic boldens active items, prevent this bold text from
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// enlarging the menu's active item replacing the text node with a div that renders a
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// invisible pseudo-element that enlarges the box.
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if (this.matches('.ui.secondary.pointing.menu, .ui.tabular.menu')) {
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for (const item of this.querySelectorAll('.item')) {
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for (const child of item.childNodes) {
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if (child.nodeType === Node.TEXT_NODE) {
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const text = child.textContent.trim(); // whitespace is insignificant inside flexbox
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if (!text) continue;
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const span = document.createElement('span');
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span.classList.add('resize-for-semibold');
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span.setAttribute('data-text', text);
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span.textContent = text;
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child.replaceWith(span);
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}
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}
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}
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}
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// ResizeObserver triggers on initial render, so we don't manually call `updateItems` here which
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// also avoids a full-page FOUC in Firefox that happens when `updateItems` is called too soon.
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this.resizeObserver = new ResizeObserver((entries) => {
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for (const entry of entries) {
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const newWidth = entry.contentBoxSize[0].inlineSize;
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if (newWidth !== this.lastWidth) {
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requestAnimationFrame(() => {
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this.updateItems();
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});
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this.lastWidth = newWidth;
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}
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}
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});
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this.resizeObserver.observe(this);
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}
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connectedCallback() {
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this.setAttribute('role', 'navigation');
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// check whether the mandatory `.overflow-menu-items` element is present initially which happens
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// with Vue which renders differently than browsers. If it's not there, like in the case of browser
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// template rendering, wait for its addition.
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// The eslint rule is not sophisticated enough or aware of this problem, see
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// https://github.com/43081j/eslint-plugin-wc/pull/130
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const menuItemsEl = this.querySelector('.overflow-menu-items'); // eslint-disable-line wc/no-child-traversal-in-connectedcallback
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if (menuItemsEl) {
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this.menuItemsEl = menuItemsEl;
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this.init();
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} else {
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this.mutationObserver = new MutationObserver((mutations) => {
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for (const mutation of mutations) {
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for (const node of mutation.addedNodes) {
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if (!isDocumentFragmentOrElementNode(node)) continue;
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if (node.classList.contains('overflow-menu-items')) {
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this.menuItemsEl = node;
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this.mutationObserver?.disconnect();
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this.init();
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}
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}
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}
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});
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this.mutationObserver.observe(this, {childList: true});
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}
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}
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disconnectedCallback() {
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this.mutationObserver?.disconnect();
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this.resizeObserver?.disconnect();
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}
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});
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