tobago-theme/tobago-theme-standard/npm/dist/js/tobago-bar.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { DomUtils } from "./tobago-utils";
class Bar extends HTMLElement {
    constructor() {
        super();
        this.CssClass = {
            SHOW: "show",
            COLLAPSE: "collapse",
            COLLAPSING: "collapsing"
        };
        this.ariaExpanded = "aria-expanded";
        this.toggleButton.addEventListener("click", this.toggleCollapse.bind(this));
    }
    connectedCallback() {
        this.expanded = this.toggleButton.getAttribute(this.ariaExpanded) === "true";
    }
    toggleCollapse(event) {
        window.clearTimeout(this.timeout);
        if (this.expanded) {
            this.expanded = false;
            this.navbarContent.style.height = this.navbarContent.scrollHeight + "px";
            this.navbarContent.offsetHeight; //force reflow, to make sure height is set
            this.navbarContent.classList.add(this.CssClass.COLLAPSING);
            this.navbarContent.classList.remove(this.CssClass.COLLAPSE);
            this.navbarContent.classList.remove(this.CssClass.SHOW);
            this.navbarContent.style.height = null;
            this.timeout = window.setTimeout(() => {
                this.navbarContent.classList.remove(this.CssClass.COLLAPSING);
                this.navbarContent.classList.add(this.CssClass.COLLAPSE);
                this.toggleButton.setAttribute(this.ariaExpanded, "false");
            }, DomUtils.getTransitionTime(this.navbarContent));
        }
        else {
            this.expanded = true;
            this.navbarContent.classList.remove(this.CssClass.COLLAPSE);
            this.navbarContent.classList.add(this.CssClass.COLLAPSING);
            this.navbarContent.style.height = this.navbarContent.scrollHeight + "px";
            this.timeout = window.setTimeout(() => {
                this.navbarContent.classList.remove(this.CssClass.COLLAPSING);
                this.navbarContent.classList.add(this.CssClass.COLLAPSE);
                this.navbarContent.classList.add(this.CssClass.SHOW);
                this.navbarContent.style.height = null;
                this.toggleButton.setAttribute(this.ariaExpanded, "true");
            }, DomUtils.getTransitionTime(this.navbarContent));
        }
    }
    get toggleButton() {
        return this.querySelector(".navbar-toggler");
    }
    get navbarContent() {
        return this.querySelector(".navbar-collapse");
    }
}
document.addEventListener("tobago.init", function (event) {
    if (window.customElements.get("tobago-bar") == null) {
        window.customElements.define("tobago-bar", Bar);
    }
});
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