function MaterialComponentsNav() {
"use strict"; this.element_ = document.querySelector(".mdl-js-components"), this.element_ && (this.componentLinks = this.element_.querySelectorAll(".mdl-components__link"), this.activeLink = null, this.activePage = null, this.init())
}
MaterialComponentsNav.prototype.linksMap_ = {}, MaterialComponentsNav.prototype.CssClasses_ = {ACTIVE: "is-active"}, MaterialComponentsNav.prototype.init = function () {
"use strict"; for (var t = 0; t < this.componentLinks.length; t++) this.componentLinks[t].addEventListener("click", this.clickHandler(this.componentLinks[t])), this.linksMap_["#" + this.componentLinks[t].href.split("#")[1]] = this.componentLinks[t]; if (this.displaySectionForFragment(window.location.hash.split("/")[0]), "onhashchange" in window) { var s = this; window.onhashchange = function () { s.displaySectionForFragment(window.location.hash.split("/")[0]) } }
}, MaterialComponentsNav.prototype.displaySectionForFragment = function (t) {
"use strict"; t && this.linksMap_[t] && this.linksMap_[t].click ? this.linksMap_[t].click() : t && "" !== t && "#" !== t || this.displayIndexPage()
}, MaterialComponentsNav.prototype.displayIndexPage = function () {
"use strict"; this.activeLink && this.activeLink.classList.remove(this.CssClasses_.ACTIVE), this.activeLink = null, this.activePage && this.activePage.classList.remove(this.CssClasses_.ACTIVE), this.activePage = this.element_.querySelector("#index-section"), this.activePage.classList.add(this.CssClasses_.ACTIVE)
}, MaterialComponentsNav.prototype.clickHandler = function (t) {
"use strict"; return function (s) { s.preventDefault(); var i = this.findPage(t); this.activePage && this.activePage.classList.remove(this.CssClasses_.ACTIVE), this.activeLink && this.activeLink.classList.remove(this.CssClasses_.ACTIVE), this.activePage = i, this.activeLink = t, t.classList.add(this.CssClasses_.ACTIVE), i.classList.add(this.CssClasses_.ACTIVE); var e = window.location.hash.split("/")[0], n = t.href.split("#")[1]; return e !== "#" + n && (history.pushState(null, "Material Design Lite", t), document.getElementById("content").scrollTop = 0, ga && ga("send", "pageview", "/components/" + n)), !0 }.bind(this)
}, MaterialComponentsNav.prototype.findPage = function (t) {
"use strict"; var s = t.href.split("#")[1]; return this.element_.querySelector("#" + s)
}, window.addEventListener("load", function () {
"use strict"; new MaterialComponentsNav
});