rust-cookbook/book/book.js
2017-02-25 14:56:50 -06:00

223 lines
6.8 KiB
JavaScript

$( document ).ready(function() {
// url
var url = window.location.pathname;
// Fix back button cache problem
window.onunload = function(){};
// Set theme
var theme = localStorage.getItem('theme');
if (theme === null) { theme = 'light'; }
set_theme(theme);
// Syntax highlighting Configuration
hljs.configure({
tabReplace: ' ', // 4 spaces
languages: [], // Languages used for auto-detection
});
$('code').each(function(i, block) {
hljs.highlightBlock(block);
});
// Adding the hljs class gives code blocks the color css
// even if highlighting doesn't apply
$('code').addClass('hljs');
var KEY_CODES = {
PREVIOUS_KEY: 37,
NEXT_KEY: 39
};
$(document).on('keydown', function (e) {
switch (e.keyCode) {
case KEY_CODES.NEXT_KEY:
e.preventDefault();
if($('.nav-chapters.next').length) {
window.location.href = $('.nav-chapters.next').attr('href');
}
break;
case KEY_CODES.PREVIOUS_KEY:
e.preventDefault();
if($('.nav-chapters.previous').length) {
window.location.href = $('.nav-chapters.previous').attr('href');
}
break;
}
});
// Interesting DOM Elements
var html = $("html");
var sidebar = $("#sidebar");
var page_wrapper = $("#page-wrapper");
var content = $("#content");
// Toggle sidebar
$("#sidebar-toggle").click(function(event){
if ( html.hasClass("sidebar-hidden") ) {
html.removeClass("sidebar-hidden").addClass("sidebar-visible");
localStorage.setItem('sidebar', 'visible');
} else if ( html.hasClass("sidebar-visible") ) {
html.removeClass("sidebar-visible").addClass("sidebar-hidden");
localStorage.setItem('sidebar', 'hidden');
} else {
if(sidebar.position().left === 0){
html.addClass("sidebar-hidden");
localStorage.setItem('sidebar', 'hidden');
} else {
html.addClass("sidebar-visible");
localStorage.setItem('sidebar', 'visible');
}
}
});
// Scroll sidebar to current active section
var activeSection = sidebar.find(".active");
if(activeSection.length) {
sidebar.scrollTop(activeSection.offset().top);
}
// Print button
$("#print-button").click(function(){
var printWindow = window.open("print.html");
});
if( url.substring(url.lastIndexOf('/')+1) == "print.html" ) {
window.print();
}
// Theme button
$("#theme-toggle").click(function(){
if($('.theme-popup').length) {
$('.theme-popup').remove();
} else {
var popup = $('<div class="theme-popup"></div>')
.append($('<div class="theme" id="light">Light <span class="default">(default)</span><div>'))
.append($('<div class="theme" id="rust">Rust</div>'))
.append($('<div class="theme" id="coal">Coal</div>'))
.append($('<div class="theme" id="navy">Navy</div>'));
popup.insertAfter(this);
$('.theme').click(function(){
var theme = $(this).attr('id');
set_theme(theme);
});
}
});
function set_theme(theme) {
if (theme == 'coal' || theme == 'navy') {
$("[href='tomorrow-night.css']").prop('disabled', false);
$("[href='highlight.css']").prop('disabled', true);
} else {
$("[href='tomorrow-night.css']").prop('disabled', true);
$("[href='highlight.css']").prop('disabled', false);
}
localStorage.setItem('theme', theme);
$('body').removeClass().addClass(theme);
}
// Hide Rust code lines prepended with a specific character
var hiding_character = "#";
$("code.language-rust").each(function(i, block){
var code_block = $(this);
var pre_block = $(this).parent();
// hide lines
var lines = code_block.html().split("\n");
var first_non_hidden_line = false;
var lines_hidden = false;
for(var n = 0; n < lines.length; n++){
if($.trim(lines[n])[0] == hiding_character){
if(first_non_hidden_line){
lines[n] = "<span class=\"hidden\">" + "\n" + lines[n].replace(/(\s*)#/, "$1") + "</span>";
}
else {
lines[n] = "<span class=\"hidden\">" + lines[n].replace(/(\s*)#/, "$1") + "\n" + "</span>";
}
lines_hidden = true;
}
else if(first_non_hidden_line) {
lines[n] = "\n" + lines[n];
}
else {
first_non_hidden_line = true;
}
}
code_block.html(lines.join(""));
// If no lines were hidden, return
if(!lines_hidden) { return; }
// add expand button
pre_block.prepend("<div class=\"buttons\"><i class=\"fa fa-expand\"></i></div>");
pre_block.find("i").click(function(e){
if( $(this).hasClass("fa-expand") ) {
$(this).removeClass("fa-expand").addClass("fa-compress");
pre_block.find("span.hidden").removeClass("hidden").addClass("unhidden");
}
else {
$(this).removeClass("fa-compress").addClass("fa-expand");
pre_block.find("span.unhidden").removeClass("unhidden").addClass("hidden");
}
});
});
// Process playpen code blocks
$(".playpen").each(function(block){
var pre_block = $(this);
// Add play button
var buttons = pre_block.find(".buttons");
if( buttons.length === 0 ) {
pre_block.prepend("<div class=\"buttons\"></div>");
buttons = pre_block.find(".buttons");
}
buttons.prepend("<i class=\"fa fa-play play-button\"></i>");
buttons.find(".play-button").click(function(e){
run_rust_code(pre_block);
});
});
});
function run_rust_code(code_block) {
var result_block = code_block.find(".result");
if(result_block.length === 0) {
code_block.append("<code class=\"result hljs language-bash\"></code>");
result_block = code_block.find(".result");
}
result_block.text("Running...");
$.ajax({
url: "https://play.rust-lang.org/evaluate.json",
method: "POST",
crossDomain: true,
dataType: "json",
contentType: "application/json",
data: JSON.stringify({version: "stable", optimize: "0", code: code_block.find(".language-rust").text() }),
success: function(response){
result_block.text(response.result);
}
});
}