247 lines
6.9 KiB
JavaScript
247 lines
6.9 KiB
JavaScript
// packages/block-library/build-module/tabs/view.mjs
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import {
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store,
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getContext,
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getElement,
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withSyncEvent
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} from "@wordpress/interactivity";
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function createReadOnlyProxy(obj) {
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const arrayMutationMethods = /* @__PURE__ */ new Set([
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"push",
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"pop",
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"shift",
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"unshift",
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"splice",
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"sort",
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"reverse",
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"copyWithin",
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"fill"
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]);
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return new Proxy(obj, {
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get(target, prop) {
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if (Array.isArray(target) && arrayMutationMethods.has(prop)) {
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return () => {
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};
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}
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const value = target[prop];
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if (typeof value === "object" && value !== null) {
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return createReadOnlyProxy(value);
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}
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return value;
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},
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set() {
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return false;
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},
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deleteProperty() {
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return false;
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}
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});
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}
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var { actions: privateActions, state: privateState } = store(
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"core/tabs/private",
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{
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state: {
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/**
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* Gets a contextually aware list of tabs for the current tabs block.
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*
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* @type {Array}
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*/
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get tabsList() {
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const context = getContext();
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const tabsId = context?.tabsId;
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const tabsList = privateState[tabsId];
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return tabsList;
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},
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/**
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* Gets the index of the active tab element whether it
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* is a tab label or tab panel.
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*
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* @type {number|null}
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*/
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get tabIndex() {
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const { attributes } = getElement();
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const tabId = attributes?.id?.replace("tab__", "") || null;
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if (!tabId) {
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return null;
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}
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const { tabsList } = privateState;
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const tabIndex = tabsList.findIndex((t) => t.id === tabId);
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return tabIndex;
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},
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/**
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* Whether the tab panel or tab label is the active tab.
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*
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* @type {boolean}
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*/
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get isActiveTab() {
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const { activeTabIndex } = getContext();
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const { tabIndex } = privateState;
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return activeTabIndex === tabIndex;
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},
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/**
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* The value of the tabindex attribute for tab buttons.
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* Only the active tab should be in the tab sequence.
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*
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* @type {number}
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*/
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get tabIndexAttribute() {
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return privateState.isActiveTab ? 0 : -1;
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}
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},
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actions: {
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/**
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* Handles the keydown events for the tab label and tabs controller.
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*
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* @param {KeyboardEvent} event The keydown event.
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*/
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handleTabKeyDown: withSyncEvent((event) => {
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const context = getContext();
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const { isVertical } = context;
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const { tabIndex } = privateState;
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if (tabIndex === null) {
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return;
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}
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if (event.key === "ArrowRight" && !isVertical) {
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event.preventDefault();
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privateActions.moveFocus(tabIndex + 1);
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} else if (event.key === "ArrowLeft" && !isVertical) {
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event.preventDefault();
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privateActions.moveFocus(tabIndex - 1);
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} else if (event.key === "ArrowDown" && isVertical) {
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event.preventDefault();
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privateActions.moveFocus(tabIndex + 1);
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} else if (event.key === "ArrowUp" && isVertical) {
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event.preventDefault();
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privateActions.moveFocus(tabIndex - 1);
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}
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}),
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/**
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* Handles the click event for the tab label.
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*
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* @param {MouseEvent} event The click event.
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*/
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handleTabClick: withSyncEvent((event) => {
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event.preventDefault();
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const { tabIndex } = privateState;
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if (tabIndex !== null) {
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privateActions.setActiveTab(tabIndex);
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}
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}),
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/**
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* Moves focus to a specific tab without activating it.
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*
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* @param {number} tabIndex The index to move focus to.
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*/
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moveFocus: (tabIndex) => {
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const { tabsList } = privateState;
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if (!tabsList || tabsList.length === 0) {
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return;
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}
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let newIndex = tabIndex;
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if (newIndex < 0) {
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newIndex = tabsList.length - 1;
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} else if (newIndex >= tabsList.length) {
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newIndex = 0;
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}
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const tabId = tabsList[newIndex].id;
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const tabElement = document.getElementById("tab__" + tabId);
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if (tabElement) {
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tabElement.focus();
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}
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},
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/**
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* Sets the active tab index (internal implementation).
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*
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* @param {number} tabIndex The index of the active tab.
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* @param {boolean} scrollToTab Whether to scroll to the tab element.
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*/
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setActiveTab: (tabIndex, scrollToTab = false) => {
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const { tabsList } = privateState;
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if (!tabsList || tabsList.length === 0) {
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return;
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}
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let newIndex = tabIndex;
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if (newIndex < 0) {
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newIndex = 0;
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} else if (newIndex >= tabsList.length) {
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newIndex = tabsList.length - 1;
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}
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const context = getContext();
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context.activeTabIndex = newIndex;
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if (scrollToTab) {
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const tabId = tabsList[newIndex].id;
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const tabElement = document.getElementById(tabId);
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if (tabElement) {
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setTimeout(() => {
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tabElement.scrollIntoView({ behavior: "smooth" });
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}, 100);
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}
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}
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}
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},
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callbacks: {
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/**
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* When the tabs are initialized, we need to check if there is a hash in the url and if so if it exists in the current tabsList, set the active tab to that index.
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*
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*/
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onTabsInit: () => {
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const { tabsList } = privateState;
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if (tabsList.length === 0) {
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return;
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}
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const { hash } = window.location;
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const tabId = hash.replace("#", "");
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const tabIndex = tabsList.findIndex((t) => t.id === tabId);
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if (tabIndex >= 0) {
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privateActions.setActiveTab(tabIndex, true);
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}
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}
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}
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},
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{
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lock: true
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}
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);
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store("core/tabs", {
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state: {
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/**
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* Gets a contextually aware list of tabs for the current tabs block.
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* Public API for third-party access.
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*
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* @type {Array}
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*/
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get tabsList() {
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return createReadOnlyProxy(privateState.tabsList);
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},
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/**
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* Gets the index of the active tab element whether it
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* is a tab label or tab panel.
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*
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* @type {number|null}
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*/
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get tabIndex() {
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return privateState.tabIndex;
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},
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/**
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* Whether the tab panel or tab label is the active tab.
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*
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* @type {boolean}
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*/
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get isActiveTab() {
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return privateState.isActiveTab;
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}
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},
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actions: {
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/**
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* Sets the active tab index.
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* Public API for third-party programmatic tab activation.
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*
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* @param {number} tabIndex The index of the active tab.
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* @param {boolean} scrollToTab Whether to scroll to the tab element.
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*/
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setActiveTab: (tabIndex, scrollToTab = false) => {
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privateActions.setActiveTab(tabIndex, scrollToTab);
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}
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}
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});
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