src/rustbook/javascript.rs

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// The rust-book JavaScript in string form.

pub static JAVASCRIPT: &'static str = r#"
<script type="text/javascript">
document.addEventListener("DOMContentLoaded", function(event) {
  document.getElementById("toggle-nav").onclick = toggleNav;
  function toggleNav() {
    var toc = document.getElementById("toc");
    var pagewrapper = document.getElementById("page-wrapper");
    toggleClass(toc, "mobile-hidden");
    toggleClass(pagewrapper, "mobile-hidden");
  };

  function toggleClass(el, className) {
     // from http://youmightnotneedjquery.com/
     if (el.classList) {
       el.classList.toggle(className);
     } else {
       var classes = el.className.split(' ');
       var existingIndex = classes.indexOf(className);

       if (existingIndex >= 0) {
         classes.splice(existingIndex, 1);
       } else {
         classes.push(className);
       }

       el.className = classes.join(' ');
     }
  }
});
</script>
"#;