/*!
 * All material copyright ESRI, All Rights Reserved, unless otherwise specified.
 * See https://github.com/Esri/calcite-components/blob/master/LICENSE.md for details.
 * v1.0.0-beta.97
 */
import { proxyCustomElement, HTMLElement, createEvent, h, Host } from '@stencil/core/internal/client/index.js';
import { c as getElementDir, m as filterDirectChildren } from './dom.js';
import { c as createObserver } from './observers.js';

const tabNavCss = "@keyframes in{0%{opacity:0}100%{opacity:1}}@keyframes in-down{0%{opacity:0;transform:translate3D(0, -5px, 0)}100%{opacity:1;transform:translate3D(0, 0, 0)}}@keyframes in-up{0%{opacity:0;transform:translate3D(0, 5px, 0)}100%{opacity:1;transform:translate3D(0, 0, 0)}}@keyframes in-scale{0%{opacity:0;transform:scale3D(0.95, 0.95, 1)}100%{opacity:1;transform:scale3D(1, 1, 1)}}:root{--calcite-animation-timing:calc(150ms * var(--calcite-internal-duration-factor));--calcite-internal-duration-factor:var(--calcite-duration-factor, 1);--calcite-internal-animation-timing-fast:calc(100ms * var(--calcite-internal-duration-factor));--calcite-internal-animation-timing-medium:calc(200ms * var(--calcite-internal-duration-factor));--calcite-internal-animation-timing-slow:calc(300ms * var(--calcite-internal-duration-factor))}.calcite-animate{opacity:0;animation-fill-mode:both;animation-duration:var(--calcite-animation-timing)}.calcite-animate__in{animation-name:in}.calcite-animate__in-down{animation-name:in-down}.calcite-animate__in-up{animation-name:in-up}.calcite-animate__in-scale{animation-name:in-scale}@media (prefers-reduced-motion: reduce){:root{--calcite-internal-duration-factor:0.01}}:root{--calcite-floating-ui-transition:var(--calcite-animation-timing)}:host([hidden]){display:none}:host{position:relative;display:flex}:host([scale=s]){min-block-size:1.5rem}:host([scale=m]){min-block-size:2rem}:host([scale=l]){min-block-size:2.75rem}.tab-nav{display:flex;inline-size:100%;justify-content:flex-start;overflow:auto}.tab-nav-active-indicator-container{position:absolute;inset-inline:0px;inset-block-end:0px;block-size:0.125rem;inline-size:100%;overflow:hidden}.tab-nav-active-indicator{position:absolute;inset-block-end:0px;display:block;block-size:0.125rem;background-color:var(--calcite-ui-brand);transition-property:all;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-duration:150ms;transition-timing-function:cubic-bezier(0, 0, 0.2, 1)}:host([position=below]) .tab-nav-active-indicator{inset-block-end:unset;inset-block-start:0px}:host([position=bottom]) .tab-nav-active-indicator{inset-block-end:unset;inset-block-start:0px}:host([position=below]) .tab-nav-active-indicator-container{inset-block-start:0px;inset-block-end:unset}:host([position=bottom]) .tab-nav-active-indicator-container{inset-block-end:unset;inset-block-start:0px}:host([bordered]) .tab-nav-active-indicator-container{inset-block-end:unset}:host([bordered][position=below]) .tab-nav-active-indicator-container{inset-block-end:0;inset-block-start:unset}:host([bordered][position=bottom]) .tab-nav-active-indicator-container{inset-block-end:0;inset-block-start:unset}@media (forced-colors: active){.tab-nav-active-indicator{background-color:highlight}}";

const TabNav = /*@__PURE__*/ proxyCustomElement(class extends HTMLElement {
  constructor() {
    super();
    this.__registerHost();
    this.__attachShadow();
    this.calciteTabChange = createEvent(this, "calciteTabChange", 6);
    this.calciteInternalTabChange = createEvent(this, "calciteInternalTabChange", 6);
    /**
     * @internal
     */
    this.scale = "m";
    /**
     * @internal
     */
    this.layout = "inline";
    /**
     * @internal
     */
    this.position = "bottom";
    /**
     * @internal
     */
    this.bordered = false;
    this.animationActiveDuration = 0.3;
    this.resizeObserver = createObserver("resize", () => {
      // remove active indicator transition duration during resize to prevent wobble
      this.activeIndicatorEl.style.transitionDuration = "0s";
      this.updateActiveWidth();
      this.updateOffsetPosition();
    });
    //--------------------------------------------------------------------------
    //
    //  Private Methods
    //
    //--------------------------------------------------------------------------
    this.handleContainerScroll = () => {
      // remove active indicator transition duration while container is scrolling to prevent wobble
      this.activeIndicatorEl.style.transitionDuration = "0s";
      this.updateOffsetPosition();
    };
  }
  async selectedTabChanged() {
    if (localStorage &&
      this.storageId &&
      this.selectedTab !== undefined &&
      this.selectedTab !== null) {
      localStorage.setItem(`calcite-tab-nav-${this.storageId}`, JSON.stringify(this.selectedTab));
    }
    this.calciteInternalTabChange.emit({
      tab: this.selectedTab
    });
    this.selectedTabEl = await this.getTabTitleById(this.selectedTab);
  }
  selectedTabElChanged() {
    this.updateOffsetPosition();
    this.updateActiveWidth();
    // reset the animation time on tab selection
    this.activeIndicatorEl.style.transitionDuration = `${this.animationActiveDuration}s`;
  }
  //--------------------------------------------------------------------------
  //
  //  Lifecycle
  //
  //--------------------------------------------------------------------------
  connectedCallback() {
    var _a;
    this.parentTabsEl = this.el.closest("calcite-tabs");
    (_a = this.resizeObserver) === null || _a === void 0 ? void 0 : _a.observe(this.el);
  }
  disconnectedCallback() {
    var _a;
    (_a = this.resizeObserver) === null || _a === void 0 ? void 0 : _a.disconnect();
  }
  componentWillLoad() {
    const storageKey = `calcite-tab-nav-${this.storageId}`;
    if (localStorage && this.storageId && localStorage.getItem(storageKey)) {
      const storedTab = JSON.parse(localStorage.getItem(storageKey));
      this.selectedTab = storedTab;
    }
  }
  componentWillRender() {
    const { parentTabsEl } = this;
    this.layout = parentTabsEl === null || parentTabsEl === void 0 ? void 0 : parentTabsEl.layout;
    this.position = parentTabsEl === null || parentTabsEl === void 0 ? void 0 : parentTabsEl.position;
    this.scale = parentTabsEl === null || parentTabsEl === void 0 ? void 0 : parentTabsEl.scale;
    this.bordered = parentTabsEl === null || parentTabsEl === void 0 ? void 0 : parentTabsEl.bordered;
    // fix issue with active tab-title not lining up with blue indicator
    if (this.selectedTabEl) {
      this.updateOffsetPosition();
    }
  }
  componentDidRender() {
    // if every tab title is active select the first tab.
    if (this.tabTitles.length &&
      this.tabTitles.every((title) => !title.active) &&
      !this.selectedTab) {
      this.tabTitles[0].getTabIdentifier().then((tab) => {
        this.calciteInternalTabChange.emit({
          tab
        });
      });
    }
  }
  render() {
    const dir = getElementDir(this.el);
    const width = `${this.indicatorWidth}px`;
    const offset = `${this.indicatorOffset}px`;
    const indicatorStyle = dir !== "rtl" ? { width, left: offset } : { width, right: offset };
    return (h(Host, { role: "tablist" }, h("div", { class: "tab-nav", onScroll: this.handleContainerScroll, ref: (el) => (this.tabNavEl = el) }, h("div", { class: "tab-nav-active-indicator-container", ref: (el) => (this.activeIndicatorContainerEl = el) }, h("div", { class: "tab-nav-active-indicator", ref: (el) => (this.activeIndicatorEl = el), style: indicatorStyle })), h("slot", null))));
  }
  //--------------------------------------------------------------------------
  //
  //  Event Listeners
  //
  //--------------------------------------------------------------------------
  focusPreviousTabHandler(event) {
    const currentIndex = this.getIndexOfTabTitle(event.target, this.enabledTabTitles);
    const previousTab = this.enabledTabTitles[currentIndex - 1] ||
      this.enabledTabTitles[this.enabledTabTitles.length - 1];
    previousTab === null || previousTab === void 0 ? void 0 : previousTab.focus();
    event.stopPropagation();
    event.preventDefault();
  }
  focusNextTabHandler(event) {
    const currentIndex = this.getIndexOfTabTitle(event.target, this.enabledTabTitles);
    const nextTab = this.enabledTabTitles[currentIndex + 1] || this.enabledTabTitles[0];
    nextTab === null || nextTab === void 0 ? void 0 : nextTab.focus();
    event.stopPropagation();
    event.preventDefault();
  }
  internalActivateTabHandler(event) {
    this.selectedTab = event.detail.tab
      ? event.detail.tab
      : this.getIndexOfTabTitle(event.target);
    event.stopPropagation();
    event.preventDefault();
  }
  activateTabHandler(event) {
    this.calciteTabChange.emit({
      tab: this.selectedTab
    });
    event.stopPropagation();
    event.preventDefault();
  }
  /**
   * Check for active tabs on register and update selected
   *
   * @param event
   */
  updateTabTitles(event) {
    if (event.target.active) {
      this.selectedTab = event.detail;
    }
  }
  globalInternalTabChangeHandler(event) {
    if (this.syncId &&
      event.target !== this.el &&
      event.target.syncId === this.syncId &&
      this.selectedTab !== event.detail.tab) {
      this.selectedTab = event.detail.tab;
    }
    event.stopPropagation();
  }
  iconStartChangeHandler() {
    this.updateActiveWidth();
  }
  updateOffsetPosition() {
    var _a, _b, _c, _d, _e;
    const dir = getElementDir(this.el);
    const navWidth = (_a = this.activeIndicatorContainerEl) === null || _a === void 0 ? void 0 : _a.offsetWidth;
    const tabLeft = (_b = this.selectedTabEl) === null || _b === void 0 ? void 0 : _b.offsetLeft;
    const tabWidth = (_c = this.selectedTabEl) === null || _c === void 0 ? void 0 : _c.offsetWidth;
    const offsetRight = navWidth - (tabLeft + tabWidth);
    this.indicatorOffset =
      dir !== "rtl" ? tabLeft - ((_d = this.tabNavEl) === null || _d === void 0 ? void 0 : _d.scrollLeft) : offsetRight + ((_e = this.tabNavEl) === null || _e === void 0 ? void 0 : _e.scrollLeft);
  }
  updateActiveWidth() {
    var _a;
    this.indicatorWidth = (_a = this.selectedTabEl) === null || _a === void 0 ? void 0 : _a.offsetWidth;
  }
  getIndexOfTabTitle(el, tabTitles = this.tabTitles) {
    // In most cases, since these indexes correlate with tab contents, we want to consider all tab titles.
    // However, when doing relative index operations, it makes sense to pass in this.enabledTabTitles as the 2nd arg.
    return tabTitles.indexOf(el);
  }
  async getTabTitleById(id) {
    return Promise.all(this.tabTitles.map((el) => el.getTabIdentifier())).then((ids) => {
      return this.tabTitles[ids.indexOf(id)];
    });
  }
  get tabTitles() {
    return filterDirectChildren(this.el, "calcite-tab-title");
  }
  get enabledTabTitles() {
    return filterDirectChildren(this.el, "calcite-tab-title:not([disabled])");
  }
  get el() { return this; }
  static get watchers() { return {
    "selectedTab": ["selectedTabChanged"],
    "selectedTabEl": ["selectedTabElChanged"]
  }; }
  static get style() { return tabNavCss; }
}, [1, "calcite-tab-nav", {
    "storageId": [513, "storage-id"],
    "syncId": [513, "sync-id"],
    "scale": [1537],
    "layout": [1537],
    "position": [1537],
    "bordered": [1540],
    "indicatorOffset": [1026, "indicator-offset"],
    "indicatorWidth": [1026, "indicator-width"],
    "selectedTab": [32],
    "selectedTabEl": [32]
  }, [[0, "calciteInternalTabsFocusPrevious", "focusPreviousTabHandler"], [0, "calciteInternalTabsFocusNext", "focusNextTabHandler"], [0, "calciteInternalTabsActivate", "internalActivateTabHandler"], [0, "calciteTabsActivate", "activateTabHandler"], [0, "calciteInternalTabTitleRegister", "updateTabTitles"], [16, "calciteInternalTabChange", "globalInternalTabChangeHandler"], [0, "calciteInternalTabIconChanged", "iconStartChangeHandler"]]]);
function defineCustomElement() {
  if (typeof customElements === "undefined") {
    return;
  }
  const components = ["calcite-tab-nav"];
  components.forEach(tagName => { switch (tagName) {
    case "calcite-tab-nav":
      if (!customElements.get(tagName)) {
        customElements.define(tagName, TabNav);
      }
      break;
  } });
}
defineCustomElement();

export { TabNav as T, defineCustomElement as d };