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import { B as BaseComponent, E as EventHandler, S as SelectorEngine, e as getSelectorFromElement, M as Manipulator, j as isElement, o as getUID, a as typeCheckConfig, d as defineJQueryPlugin } from './dom.js?1629745661';

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v5.0.2): scrollspy.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
 * --------------------------------------------------------------------------
 */
/**
 * ------------------------------------------------------------------------
 * Constants
 * ------------------------------------------------------------------------
 */

class ScrollSpy extends BaseComponent {
  constructor(element, config) {
    super(element);
    this._scrollElement = this._element.tagName === 'BODY' ? window : this._element;
    this._config = this._getConfig(config);
    this._selector = `${this._config.target} ${SELECTOR_NAV_LINKS}, ${this._config.target} ${SELECTOR_LIST_ITEMS}, ${this._config.target} .${CLASS_NAME_DROPDOWN_ITEM}`;
    this._offsets = [];
    this._targets = [];
    this._activeTarget = null;
    this._scrollHeight = 0;
    EventHandler.on(this._scrollElement, EVENT_SCROLL, () => this._process());
    this.refresh();

this._process();
  } // Getters

static get Default() {
    return Default;
  }

static get NAME() {
    return NAME;
  } // Public

refresh() {
    const autoMethod = this._scrollElement === this._scrollElement.window ? METHOD_OFFSET : METHOD_POSITION;
    const offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
    const offsetBase = offsetMethod === METHOD_POSITION ? this._getScrollTop() : 0;
    this._offsets = [];
    this._targets = [];
    this._scrollHeight = this._getScrollHeight();
    const targets = SelectorEngine.find(this._selector);
    targets.map(element => {
      const targetSelector = getSelectorFromElement(element);
      const target = targetSelector ? SelectorEngine.findOne(targetSelector) : null;

if (target) {
        const targetBCR = target.getBoundingClientRect();

if (targetBCR.width || targetBCR.height) {
          return [Manipulator[offsetMethod](target).top + offsetBase, targetSelector];
        }
      }

return null;
    }).filter(item => item).sort((a, b) => a[0] - b[0]).forEach(item => {
      this._offsets.push(item[0]);

this._targets.push(item[1]);
    });
  }

dispose() {
    EventHandler.off(this._scrollElement, EVENT_KEY);
    super.dispose();
  } // Private

_getConfig(config) {
    config = { ...Default,
      ...Manipulator.getDataAttributes(this._element),
      ...(typeof config === 'object' && config ? config : {})
    };

if (typeof config.target !== 'string' && isElement(config.target)) {
      let {
        id
      } = config.target;

if (!id) {
        id = getUID(NAME);
        config.target.id = id;
      }

config.target = `#${id}`;
    }

typeCheckConfig(NAME, config, DefaultType);
    return config;
  }

_getScrollTop() {
    return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
  }

_getScrollHeight() {
    return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
  }

_getOffsetHeight() {
    return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
  }

_process() {
    const scrollTop = this._getScrollTop() + this._config.offset;

const scrollHeight = this._getScrollHeight();

const maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();

if (this._scrollHeight !== scrollHeight) {
      this.refresh();
    }

if (scrollTop >= maxScroll) {
      const target = this._targets[this._targets.length - 1];

if (this._activeTarget !== target) {
        this._activate(target);
      }

return;
    }

if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
      this._activeTarget = null;

this._clear();

return;
    }

for (let i = this._offsets.length; i--;) {
      const isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);

if (isActiveTarget) {
        this._activate(this._targets[i]);
      }
    }
  }

_activate(target) {
    this._activeTarget = target;

this._clear();

const queries = this._selector.split(',').map(selector => `${selector}[data-bs-target="${target}"],${selector}[href="${target}"]`);

const link = SelectorEngine.findOne(queries.join(','));

if (link.classList.contains(CLASS_NAME_DROPDOWN_ITEM)) {
      SelectorEngine.findOne(SELECTOR_DROPDOWN_TOGGLE, link.closest(SELECTOR_DROPDOWN)).classList.add(CLASS_NAME_ACTIVE);
      link.classList.add(CLASS_NAME_ACTIVE);
    } else {
      // Set triggered link as active
      link.classList.add(CLASS_NAME_ACTIVE);
      SelectorEngine.parents(link, SELECTOR_NAV_LIST_GROUP).forEach(listGroup => {
        // Set triggered links parents as active
        // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
        SelectorEngine.prev(listGroup, `${SELECTOR_NAV_LINKS}, ${SELECTOR_LIST_ITEMS}`).forEach(item => item.classList.add(CLASS_NAME_ACTIVE)); // Handle special case when .nav-link is inside .nav-item

SelectorEngine.prev(listGroup, SELECTOR_NAV_ITEMS).forEach(navItem => {
          SelectorEngine.children(navItem, SELECTOR_NAV_LINKS).forEach(item => item.classList.add(CLASS_NAME_ACTIVE));
        });
      });
    }

EventHandler.trigger(this._scrollElement, EVENT_ACTIVATE, {
      relatedTarget: target
    });
  }

_clear() {
    SelectorEngine.find(this._selector).filter(node => node.classList.contains(CLASS_NAME_ACTIVE)).forEach(node => node.classList.remove(CLASS_NAME_ACTIVE));
  } // Static

static jQueryInterface(config) {
    return this.each(function () {
      const data = ScrollSpy.getOrCreateInstance(this, config);

if (typeof config !== 'string') {
        return;
      }

if (typeof data[config] === 'undefined') {
        throw new TypeError(`No method named "${config}"`);
      }

data[config]();
    });
  }

}
/**
 * ------------------------------------------------------------------------
 * Data Api implementation
 * ------------------------------------------------------------------------
 */

EventHandler.on(window, EVENT_LOAD_DATA_API, () => {
  SelectorEngine.find(SELECTOR_DATA_SPY).forEach(spy => new ScrollSpy(spy));
});
/**
 * ------------------------------------------------------------------------
 * jQuery
 * ------------------------------------------------------------------------
 * add .ScrollSpy to jQuery only if jQuery is present
 */

defineJQueryPlugin(ScrollSpy);

window.bootstrap = window.bootstrap || {};
window.bootstrap.Scrollspy = ScrollSpy;

if (Joomla && Joomla.getOptions) {
  // Get the elements/configurations from the PHP
  const scrollspys = Joomla.getOptions('bootstrap.scrollspy'); // Initialise the elements

if (typeof scrollspys === 'object' && scrollspys !== null) {
    Object.keys(scrollspys).forEach(scrollspy => {
      const opt = scrollspys[scrollspy];
      const options = {
        offset: opt.offset ? opt.offset : 10,
        method: opt.method ? opt.method : 'auto'
      };

if (opt.target) {
        options.target = opt.target;
      }

const elements = Array.from(document.querySelectorAll(scrollspy));

if (elements.length) {
        elements.map(el => new window.bootstrap.Scrollspy(el, options));
      }
    });
  }
}

export { ScrollSpy as S };