Bump version to 0.4.7

More than two section level in summary

.gitignore

@@ -23,3 +23,8 @@ build/Release
 # Deployed apps should consider commenting this line out:
 # see https://npmjs.org/doc/faq.html#Should-I-check-my-node_modules-folder-into-git
 node_modules
+
+theme/javascript/vendors
+
+# vim swapfile
+*.swp

AUTHORS.md

@@ -15,3 +15,4 @@ Contributors
 ------------
 
 - Nijiko Yonskai
+- Herman Starikov

CHANGES.md

@@ -0,0 +1,2 @@
+# Release notes
+

Gruntfile.js

@@ -4,10 +4,18 @@ module.exports = function (grunt) {
     // Load NPM tasks
     grunt.loadNpmTasks('grunt-contrib-less');
     grunt.loadNpmTasks('grunt-contrib-requirejs');
+    grunt.loadNpmTasks("grunt-bower-install-simple");
 
     // Init GRUNT configuraton
     grunt.initConfig({
         pkg: grunt.file.readJSON('package.json'),
+        'bower-install-simple': {
+            options: {
+                color:       true,
+                production:  false,
+                directory:   "theme/javascript/vendors"
+            }
+        },
         less: {
             development: {
                 options: {
@@ -24,18 +32,19 @@ module.exports = function (grunt) {
         requirejs: {
             compile: {
                 options: {
-                    name: "app",
+                    name: "gitbook",
                     baseUrl: "theme/javascript/",
                     out: "theme/assets/app.js",
                     preserveLicenseComments: false,
                     optimize: "uglify", //"uglify",
                     include: ["requireLib"],
                     paths: {
-                        "jQuery": 'vendors/jquery',
-                        "lodash": 'vendors/lodash',
-                        "requireLib": 'vendors/require',
-                        "Mousetrap": 'vendors/mousetrap',
-                        "lunr": path.join(__dirname, "node_modules/lunr/lunr")
+                        "jQuery": 'vendors/jquery/dist/jquery',
+                        "lodash": 'vendors/lodash/dist/lodash',
+                        "requireLib": 'vendors/requirejs/require',
+                        "Mousetrap": 'vendors/mousetrap/mousetrap',
+                        "lunr": 'vendors/lunr.js/lunr',
+                        "URI": 'vendors/URIjs/src/URI'
                     },
                     shim: {
                         'jQuery': {
@@ -56,8 +65,11 @@ module.exports = function (grunt) {
         }
     });
 
+    grunt.registerTask("bower-install", [ "bower-install-simple" ]);
+
     // Build
     grunt.registerTask('build', [
+        'bower-install',
         'less',
         'requirejs'
     ]);

LICENSE

@@ -186,7 +186,7 @@ Apache License
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright {yyyy} {name of copyright owner}
+   Copyright 2014 FriendCode Inc.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -198,4 +198,4 @@ Apache License
    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.
+   limitations under the License.

README.md

@@ -3,7 +3,7 @@ GitBook
 
 [![Build Status](https://travis-ci.org/GitbookIO/gitbook.png?branch=master)](https://travis-ci.org/GitbookIO/gitbook)
 
-GitBook is a command line tool (and Node.js library) for building beautiful programming books and exercises using GitHub/Git and Markdown. You can see an example: [Learn Javascript](http://gitbookio.github.io/javascript/). An [editor](https://github.com/GitbookIO/editor) is available for Windows, Mac and Linux. You can follow [@GitBookIO](https://twitter.com/GitBookIO) on Twitter.
+GitBook is a command line tool (and Node.js library) for building beautiful books and exercises using GitHub/Git and Markdown. You can see an example: [Learn Javascript](https://www.gitbook.io/book/GitBookIO/javascript). An [editor](https://github.com/GitbookIO/editor) is available for Windows, Mac and Linux. You can follow [@GitBookIO](https://twitter.com/GitBookIO) on Twitter. Complete documentation is available at [help.gitbook.io](http://help.gitbook.io/).
 
 ![Image](https://raw.github.com/GitbookIO/gitbook/master/preview.png)
 
@@ -30,13 +30,66 @@ $ gitbook build ./repository --output=./outputFolder
 Options for commands `build` and `serve` are:
 
 ```
--t, --title <name> Name of the book to generate, defaults to repo name
--i, --intro <intro> Description of the book to generate
--g, --github <repo_path> ID of github repo like : username/repo
 -o, --output <directory>  Path to output directory, defaults to ./_book
 -f, --format <name>       Change generation format, defaults to site, availables are: site, page, pdf, json
---githubHost <url>   The url of the github host (defaults to https://github.com/)
---theme <path>            Path to theme directory
+--config <config file>    Configuration file to use, defaults to book.json
+```
+
+GitBook loads the default configuration from a `book.json` file in the repository if it exists.
+
+Here are the options that can be stored in this file:
+
+```
+{
+    // Folders to use for output (caution: it overrides the value from the command line)
+    "output": null,
+
+    // Generator to use for building (caution: it overrides the value from the command line)
+    "generator": "site",
+
+    // Book title and description (defaults are extracted from the README)
+    "title": null,
+    "description": null,
+
+    // GitHub information (defaults are extracted using git)
+    "github": null,
+    "githubHost": "https://github.com/",
+
+    // Plugins list, can contain "-name" for removing default plugins
+    "plugins": [],
+
+    // Global configuration for plugins
+    "pluginsConfig": {
+        "fontSettings": {
+            "theme": "sepia", "night" or "white",
+            "family": "serif" or "sans",
+            "size": 1 to 4
+        }
+    },
+
+    // Set another theme with your own layout
+    // It's recommended to use plugins or add more options for default theme, though
+    // See https://github.com/GitbookIO/gitbook/issues/209
+    "theme": "./localtheme",
+
+    // Links in template (null: default, false: remove, string: new value)
+    "links": {
+        // Link to home in the top-left corner
+        "home": null,
+
+        // Links in top of sidebar
+        "about": null,
+        "issues": null,
+        "contribute": null,
+
+        // Sharing links
+        "sharing": {
+            "google": null,
+            "facebook": null,
+            "twitter": null
+        }
+    }
+}
 ```
 
 You can publish your books to our index by visiting [GitBook.io](http://www.gitbook.io)
@@ -45,19 +98,19 @@ You can publish your books to our index by visiting [GitBook.io](http://www.gitb
 
 GitBook can generate your book in the following formats:
 
-* **Static Website**: This is the default format, it generates a complete interactive static website that can be for example hosted on GitHub Pages.
-* **PDF**: A complete PDF book with exercise solutions at the end of the book. Generate to this format using: ```gitbook pdf ./myrepo```, you need to have [gitbook-pdf](https://github.com/GitbookIO/gitbook-pdf) installed.
-* **eBook**: A complete eBook with exercise solutions at the end of the book. Generate to this format using: ```gitbook ebook ./myrepo```, you need to have [ebook-convert](http://manual.calibre-ebook.com/cli/ebook-convert.html) installed.
-* **Single Page**: The book will be stored in a single printable HTML page, this format is used for conversion to PDF or eBook. Generate to this format using: ```gitbook build ./myrepo -f page```.
-* **JSON**: This format is used for debugging or extracting metadata from a book. Generate to this format using: ```gitbook build ./myrepo -f json```.
+* **Static Website**: This is the default format. It generates a complete interactive static website that can be, for example, hosted on GitHub Pages.
+* **PDF**: A complete PDF book with exercise solutions at the end of the book. Generate this format using: ```gitbook pdf ./myrepo```. You need to have [gitbook-pdf](https://github.com/GitbookIO/gitbook-pdf) installed.
+* **eBook**: A complete eBook with exercise solutions at the end of the book. Generate this format using: ```gitbook ebook ./myrepo```. You need to have [ebook-convert](http://manual.calibre-ebook.com/cli/ebook-convert.html) installed.
+* **Single Page**: The book will be stored in a single printable HTML page. This format is used for conversion to PDF or eBook. Generate this format using: ```gitbook build ./myrepo -f page```.
+* **JSON**: This format is used for debugging or extracting metadata from a book. Generate this format using: ```gitbook build ./myrepo -f json```.
 
 ## Book Format
 
-A book is a GitHub repository containing at least 2 files: `README.md` and `SUMMARY.md`.
+A book is a Git repository containing at least 2 files: `README.md` and `SUMMARY.md`.
 
 #### README.md
 
-As usual, it should contains an introduction for your book. It will be automatically added to the final summary.
+Typically, this should be the introduction for your book. It will be automatically added to the final summary.
 
 #### SUMMARY.md
 
@@ -77,11 +130,11 @@ This is the summary of my book.
     * [example 1](section2/example1.md)
 ```
 
-Files that are not included in the `SUMMARY.md` will not be processed by `gitbook`.
+Files that are not included in `SUMMARY.md` will not be processed by `gitbook`.
 
 #### Exercises
 
-A book can contain interactive exercises (currently only in Javascript but Python and Ruby are coming soon ;) ). An exercise is a code challenge provided to the reader, which is given a code editor to write a solution which is checked against the book author's validation code.
+A book can contain interactive exercises (currently only in Javascript but Python and Ruby are coming soon ;) ). An exercise is a code challenge provided to the reader, who is given a code editor to write a solution which is checked against the book author's validation code.
 
 An exercise is defined by 4 simple parts:
 
@@ -90,7 +143,7 @@ An exercise is defined by 4 simple parts:
 * **Solution** code, being a correct solution to the exercise
 * **Validation** code that tests the correctness of the user's input
 
-Exercises need to start and finish with a separation bar (```---``` or ```***```). It should contain 3 code elements (**base**, **solution** and **validation**). It can contain a 4th element that provides **context** code (functions, imports of libraries etc ... that shouldn't be displayed to the user).
+Exercises need to start and finish with a separation bar (```---``` or ```***```). It should contain 3 code elements (**base**, **solution** and **validation**). It can contain a 4th element that provides **context** code (functions, imports of libraries, etc which shouldn't be displayed to the user).
 
     ---
 
@@ -132,4 +185,35 @@ You can see a complete example with the [Learn Git](https://github.com/GitbookIO
 
 #### Ignoring files & folders
 
-GitBook will read the `.gitignore`, `.bookignore` and `.ignore` files to get a list of files and folders to skip. (The format inside those files, follows the same convention as `.gitignore`)
+GitBook will read the `.gitignore`, `.bookignore` and `.ignore` files to get a list of files and folders to skip. (The format inside those files follows the same convention as `.gitignore`)
+
+#### Cover
+
+A cover image can be set by creating a file: **/cover.jpg**.
+The best resolution is **1800x2360**. The generation of the cover can be done automatically using the plugin [autocover](https://github.com/GitbookIO/plugin-autocover).
+
+A small version of the cover can also be set by creating a file: **/cover_small.jpg**.
+
+#### Publish your book
+
+The platform [GitBook.io](https://www.gitbook.io/) is like an "Heroku for books": you can create a book on it (public, paid, or private) and update it using **git push**.
+
+#### Plugins
+
+Plugins can used to extend your book's functionality. Read [GitbookIO/plugin](https://github.com/GitbookIO/plugin) for more information about how to build a plugin for GitBook.
+
+##### Default plugins:
+
+* [mathjax](https://github.com/GitbookIO/plugin-mathjax): displays mathematical notation in the book.
+* [mixpanel](https://github.com/GitbookIO/plugin-mixpanel): Mixpanel tracking for your book
+
+##### Other plugins:
+
+* [Google Analytics](https://github.com/GitbookIO/plugin-ga): Google Analytics tracking for your book
+* [Disqus](https://github.com/GitbookIO/plugin-disqus): Disqus comments integration in your book
+* [Autocover](https://github.com/GitbookIO/plugin-autocover): Generate a cover for your book
+* [Transform annoted quotes to notes](https://github.com/erixtekila/gitbook-plugin-richquotes): Allow extra markdown markup to render blockquotes as nice notes
+* [Send code to console](https://github.com/erixtekila/gitbook-plugin-toconsole): Evaluate javascript block in the browser inspector's console
+* [Revealable sections](https://github.com/mrpotes/gitbook-plugin-reveal): Reveal sections of the page using buttons made from the first title in each section
+* [Markdown within HTML](https://github.com/mrpotes/gitbook-plugin-nestedmd): Process markdown within HTML blocks - allows custom layout options for individual pages
+* [Bootstrap JavaScript plugins](https://github.com/mrpotes/gitbook-plugin-bootstrapjs): Use the [Bootstrap JavaScript plugins](http://getbootstrap.com/javascript) in your online GitBook

bin/build.js

@@ -1,50 +1,47 @@
 var path = require('path');
 var Q = require('q');
 var _ = require('lodash');
+var fs = require('fs');
 
 var utils = require('./utils');
-
 var generate = require("../lib/generate");
 var parse = require("../lib/parse");
-var fs = require('../lib/generate/fs');
 var generators = require("../lib/generate").generators;
 
+var buildCommand = function(command) {
+    return command
+    .option('-o, --output <directory>', 'Path to output directory, defaults to ./_book')
+    .option('-f, --format <name>', 'Change generation format, defaults to site, availables are: '+_.keys(generators).join(", "))
+    .option('--config <config file>', 'Configuration file to use, defualt to book.json')
+};
+
+
 var makeBuildFunc = function(converter) {
     return  function(dir, options) {
         dir = dir || process.cwd();
-        outputDir = options.output
+        outputDir = options.output;
 
         console.log('Starting build ...');
-        // Get repo's URL
-        return utils.gitURL(dir)
-        .then(function(url) {
-            // Get ID of repo
-            return utils.githubID(url);
-        }, function(err) {
-            return null;
-        })
-        .then(function(repoID) {
-            return converter(
-                _.extend(options || {}, {
-                    input: dir,
-                    output: outputDir,
-                    title: options.title,
-                    description: options.intro,
-                    github: options.github || repoID,
-                    githubHost: options.githubHost,
-                    generator: options.format,
-                    theme: options.theme
-                })
-            );
-        })
+        return converter(
+            _.extend({}, options || {}, {
+                input: dir,
+                output: outputDir,
+                generator: options.format,
+                configFile: options.config
+            })
+        )
         .then(function(output) {
             console.log("Successfuly built !");
             return output;
-        }, utils.logError);
-    };   
-}
+        }, utils.logError)
+        .fail(function() {
+            process.exit(-1);
+        });
+    };
+};
 
 module.exports = {
     folder: makeBuildFunc(generate.folder),
-    file: makeBuildFunc(generate.file)
+    file: makeBuildFunc(generate.file),
+    command: buildCommand
 };

bin/gitbook.js

@@ -4,6 +4,7 @@ var Q = require('q');
 var _ = require('lodash');
 var path = require('path');
 var prog = require('commander');
+var tinylr = require('tiny-lr-fork');
 
 var pkg = require('../package.json');
 var generators = require("../lib/generate").generators;
@@ -12,45 +13,74 @@ var fs = require('../lib/generate/fs');
 
 var utils = require('./utils');
 var build = require('./build');
+var Server = require('./server');
 
 // General options
 prog
 .version(pkg.version);
 
-var buildCommand = function(command) {
-    return command
-    .option('-o, --output <directory>', 'Path to output directory, defaults to ./_book')
-    .option('-f, --format <name>', 'Change generation format, defaults to site, availables are: '+_.keys(generators).join(", "))
-    .option('-t, --title <name>', 'Name of the book to generate, default is extracted from readme')
-    .option('-i, --intro <intro>', 'Description of the book to generate, default is extracted from readme')
-    .option('-g, --github <repo_path>', 'ID of github repo like : username/repo')
-    .option('--githubHost <url>', 'The url of the github host (defaults to https://github.com/')
-    .option('--theme <path>', 'Path to theme directory');
-};
-
-buildCommand(prog.command('build [source_dir]'))
+build.command(prog.command('build [source_dir]'))
 .description('Build a gitbook from a directory')
 .action(build.folder);
 
-buildCommand(prog.command('serve [source_dir]'))
+build.command(prog.command('serve [source_dir]'))
 .description('Build then serve a gitbook from a directory')
 .option('-p, --port <port>', 'Port for server to listen on', 4000)
+.option('--no-watch', 'Disable restart with file watching')
 .action(function(dir, options) {
-    build.folder(dir, options || {})
-    .then(function(_options) {
-        console.log();
-        console.log('Starting server ...');
-        return utils.serveDir(_options.output, options.port)
-        .fail(utils.logError);
-    })
-    .then(function() {
-        console.log('Serving book on http://localhost:'+options.port);
-        console.log();
-        console.log('Press CTRL+C to quit ...');
+    var server = new Server();
+
+    // init livereload server
+    var lrOptions = {port: 35729};
+    var lrServer = tinylr(lrOptions);
+    var lrPath = undefined;
+    lrServer.listen(lrOptions.port, function(err) {
+      if (err) { return console.log(err); }
+      console.log('Live reload server started on port: ' + lrOptions.port);
     });
+
+    var generate = function() {
+        if (server.isRunning()) console.log("Stopping server");
+
+        server.stop()
+        .then(function() {
+            return build.folder(dir, _.extend(options || {}, {
+                cache: false,
+                defaultsPlugins: ["livereload"]
+            }));
+        })
+        .then(function(_options) {
+            console.log();
+            console.log('Starting server ...');
+            return server.start(_options.output, options.port)
+            .then(function() {
+                console.log('Serving book on http://localhost:'+options.port);
+
+                if (lrPath) {
+                  // trigger livereload
+                  lrServer.changed({body:{files:[lrPath]}})
+                }
+
+                if (!options.watch) return;
+                return utils.watch(_options.input)
+                .then(function(filepath) {
+                    // set livereload path
+                    lrPath = filepath;
+                    console.log("Restart after change in files");
+                    console.log('');
+                    return generate();
+                })
+            })
+        })
+        .fail(utils.logError);
+    };
+
+    console.log('Press CTRL+C to quit ...');
+    console.log('')
+    generate();
 });
 
-buildCommand(prog.command('pdf [source_dir]'))
+build.command(prog.command('pdf [source_dir]'))
 .description('Build a gitbook as a PDF')
 .option('-pf, --paperformat <format>', 'PDF paper format (default is A4): "5in*7.5in", "10cm*20cm", "A4", "Letter"')
 .action(function(dir, options) {
@@ -60,9 +90,9 @@ buildCommand(prog.command('pdf [source_dir]'))
     }));
 });
 
-buildCommand(prog.command('ebook [source_dir]'))
+build.command(prog.command('ebook [source_dir]'))
 .description('Build a gitbook as a eBook')
-.option('-c, --cover <path>', 'Cover image, default is cover.png if exists')
+.option('-c, --cover <path>', 'Cover image, default is cover.jpg if exists')
 .action(function(dir, options) {
     var ext = options.output ? path.extname(options.output) : "epub";
 

bin/server.js

@@ -0,0 +1,96 @@
+var Q = require('q');
+var _ = require('lodash');
+
+var events = require('events');
+var http = require('http');
+var send = require('send');
+var util = require('util');
+var url = require('url');
+
+var Server = function() {
+    this.running = null;
+    this.dir = null;
+    this.port = 0;
+    this.sockets = [];
+};
+util.inherits(Server, events.EventEmitter);
+
+// Return true if the server is running
+Server.prototype.isRunning = function() {
+    return this.running != null;
+};
+
+// Stop the server
+Server.prototype.stop = function() {
+    var that = this;
+    if (!this.isRunning()) return Q();
+
+    var d = Q.defer();
+    this.running.close(function(err) {
+        that.running = null;
+        that.emit("state", false);
+
+        if (err) d.reject(err);
+        else d.resolve();
+    });
+
+    for (var i = 0; i < this.sockets.length; i++) {
+        this.sockets[i].destroy();
+    }
+
+    return d.promise;
+};
+
+Server.prototype.start = function(dir, port) {
+    var that = this, pre = Q();
+    port = port || 8004;
+
+    if (that.isRunning()) pre = this.stop();
+    return pre
+    .then(function() {
+        var d = Q.defer();
+
+        that.running = http.createServer(function(req, res){
+            // Render error
+            function error(err) {
+                res.statusCode = err.status || 500;
+                res.end(err.message);
+            }
+
+            // Redirect to directory's index.html
+            function redirect() {
+                res.statusCode = 301;
+                res.setHeader('Location', req.url + '/');
+                res.end('Redirecting to ' + req.url + '/');
+            }
+
+            // Send file
+            send(req, url.parse(req.url).pathname)
+            .root(dir)
+            .on('error', error)
+            .on('directory', redirect)
+            .pipe(res);
+        });
+
+        that.running.on('connection', function (socket) {
+            that.sockets.push(socket);
+            socket.setTimeout(4000);
+            socket.on('close', function () {
+                that.sockets.splice(that.sockets.indexOf(socket), 1);
+            });
+        });
+
+        that.running.listen(port, function(err) {
+            if (err) return d.reject(err);
+
+            that.port = port;
+            that.dir = dir;
+            that.emit("state", true);
+            d.resolve();
+        });
+
+        return d.promise;
+    });
+}
+
+module.exports = Server;

bin/utils.js

@@ -4,98 +4,41 @@ var _ = require('lodash');
 var http = require('http');
 var send = require('send');
 
-var url = require('url');
-var cp = require('child_process');
+var path = require('path');
+var Gaze = require('gaze').Gaze;
 
-
-// Get the remote of a given repo
-function gitURL(path) {
+function watch(dir) {
     var d = Q.defer();
+    dir = path.resolve(dir);
 
-    cp.exec("git config --get remote.origin.url", {
-        cwd: path,
-        env: process.env,
-    }, function(err, stdout, stderr) {
-        if(err) {
-            return d.reject(err);
-        }
-
-        return d.resolve(stdout);
+    var gaze = new Gaze("**/*.md", {
+        cwd: dir
     });
 
-    return d.promise
-    .then(function(output) {
-        return output.replace(/(\r\n|\n|\r)/gm, "");
+    gaze.once("all", function(e, filepath) {
+        gaze.close();
+
+        d.resolve(filepath);
     });
-}
+    gaze.once("error", function(err) {
+        gaze.close();
 
-// Poorman's parsing
-// Parse a git URL to a github ID : username/reponame
-function githubID(_url) {
-    // Remove .git if it's in _url
-    var sliceEnd = _url.slice(-4) === '.git' ? -4 : _url.length;
-
-    // Detect HTTPS repos
-    var parsed = url.parse(_url);
-    if(parsed.protocol === 'https:' && parsed.host === 'github.com') {
-        return parsed.path.slice(1, sliceEnd);
-    }
-
-    // Detect SSH repos
-    if(_url.indexOf('git@') === 0) {
-        return _url.split(':', 2)[1].slice(0, sliceEnd);
-    }
-
-    // None found
-    return null;
-}
-
-function titleCase(str)
-{
-    return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
-}
-
-function serveDir(dir, port) {
-    var d = Q.defer();
-
-    var server = http.createServer(function(req, res){
-        // Render error
-        function error(err) {
-            res.statusCode = err.status || 500;
-            res.end(err.message);
-        }
-
-        // Redirect to directory's index.html
-        function redirect() {
-            res.statusCode = 301;
-            res.setHeader('Location', req.url + '/');
-            res.end('Redirecting to ' + req.url + '/');
-        }
-
-        // Send file
-        send(req, url.parse(req.url).pathname)
-        .root(dir)
-        .on('error', error)
-        .on('directory', redirect)
-        .pipe(res);
-    }).listen(port);
-
-    d.resolve(server);
+        d.reject(err);
+    });
 
     return d.promise;
 }
 
 function logError(err) {
-    console.log(err.stack || err.message || err);
+    var message = err.message || err;
+    if (process.env.DEBUG != null) message = err.stack || message;
+    console.log(message);
     return Q.reject(err);
 };
 
 
 // Exports
 module.exports = {
-    gitURL: gitURL,
-    githubID: githubID,
-    titleCase: titleCase,
-    serveDir: serveDir,
+    watch: watch,
     logError: logError
 };

bower.json

@@ -0,0 +1,12 @@
+{
+    "name": "GitBook",
+    "version": "1.0.0",
+    "dependencies": {
+        "jquery": "2.1.1",
+        "lodash": "2.4.1",
+        "requirejs": "2.1.11",
+        "URIjs": "1.13.1",
+        "mousetrap": "1.4.6",
+        "lunr.js": "0.5.2"
+    }
+}

lib/generate/ebook/index.js

@@ -19,10 +19,6 @@ var Generator = function() {
     this.options = _.defaults(this.options, {
         extension: "epub"
     });
-
-    if (!this.options.cover && fs.existsSync(path.join(this.options.input, "cover.png"))) {
-        this.options.cover = path.join(this.options.input, "cover.png")
-    }
 };
 util.inherits(Generator, BaseGenerator);
 
@@ -33,6 +29,10 @@ Generator.prototype.finish = function() {
     .then(function() {
         var d = Q.defer();
 
+        if (!that.options.cover && fs.existsSync(path.join(that.options.output, "cover.jpg"))) {
+            that.options.cover = path.join(that.options.output, "cover.jpg");
+        }
+
         var _options = {
             "--cover": that.options.cover
         };

lib/generate/fs.js

@@ -18,6 +18,7 @@ var getFiles = function(path) {
     ig.addIgnoreRules([
         '.git/',
         '.gitignore',
+        '.DS_Store'
     ], '__custom_stuff');
 
     // Push each file to our list

lib/generate/generator.js

@@ -1,9 +1,31 @@
+var _ = require("lodash");
 var path = require("path");
 var Q = require("q");
 var fs = require("./fs");
 
+var Plugin = require("./plugin");
+
 var BaseGenerator = function(options) {
     this.options = options;
+
+    this.options.plugins = Plugin.normalizeNames(this.options.plugins);
+    this.options.plugins = _.union(this.options.plugins, this.options.defaultsPlugins);
+    this.plugins = [];
+};
+
+BaseGenerator.prototype.callHook = function(name, data) {
+    return this.plugins.hook(name, this, data);
+};
+
+BaseGenerator.prototype.loadPlugins = function() {
+    var that = this;
+
+    return Plugin.fromList(this.options.plugins, this.options.input)
+    .then(function(_plugins) {
+        that.plugins = _plugins;
+
+        return that.callHook("init");
+    });
 };
 
 BaseGenerator.prototype.convertFile = function(content, input) {

lib/generate/index.js

@@ -6,6 +6,7 @@ var tmp = require('tmp');
 
 var fs = require("./fs");
 var parse = require("../parse");
+var Plugin = require("./plugin");
 
 var generators = {
     "site": require("./site"),
@@ -17,46 +18,209 @@ var generators = {
 
 var defaultDescription = "Book generated using GitBook";
 
-/*
- *  Use a specific generator to convert a gitbook to a site/pdf/ebook/
- *  output is always a folder
- */
-var generate = function(options) {
-    var generator = null;
-    var files;
 
+var containsFiles = function(dir, files) {
+    return Q.all(_.map(files, function(file) {
+        return fs.exists(path.join(dir, file));
+    }))
+    .then(_.all);
+};
+
+
+// Create the generator and load plugins
+var loadGenerator = function(options) {
+    var generator = new generators[options.generator](options);
+
+    return generator.loadPlugins()
+    .then(_.constant(generator));
+};
+
+
+
+var generate = function(options) {
+    // Set defaults to options
     options = _.defaults(options || {}, {
         // Folders to use
-        input: null,
-        output: null,
+        "input": null,
+        "output": null,
+
+        // Config file (relative to input)
+        "configFile": "book.json",
 
         // Output generator
-        generator: "site",
+        "generator": "site",
 
         // Book title, keyword, description
-        title: null,
-        description: null,
+        "title": null,
+        "description": null,
 
         // Origin github repository id
-        github: null,
-        githubHost: 'https://github.com/',
+        "github": null,
+        "githubHost": 'https://github.com/',
 
         // Theming
-        theme: path.resolve(__dirname, '../../theme')
+        "theme": path.resolve(__dirname, '../../theme'),
+
+        // Plugins
+        "plugins": [],
+        "pluginsConfig": {},
+        "defaultsPlugins": [], // Default plugins that can't be set in book.json
+
+        // Links
+        "links": {
+            "about": null,
+            "issues": null,
+            "contribue": null,
+        }
     });
 
+    // Validate options
     if (!options.input) {
         return Q.reject(new Error("Need option input (book input directory)"));
     }
 
+    // Ensure generator exists
     if (!generators[options.generator]) {
         return Q.reject(new Error("Invalid generator (availables are: "+_.keys(generators).join(", ")));
     }
 
+    // Check files to get folder type (book, multilanguage book or neither)
+    return Q()
+
+    // Read config file
+    .then(function() {
+        return fs.readFile(path.resolve(options.input, options.configFile))
+        .then(function(_config) {
+            // Extend current config
+            _config = JSON.parse(_config);
+            _config = _.omit(_config, 'input', 'configFile', 'defaultsPlugins');
+
+            _.extend(options, _config);
+        }, function() {
+            // No config file: not a big deal
+            return Q();
+        });
+    })
+
+    // Read readme
+    .then(function() {
+        return fs.readFile(path.join(options.input, "README.md"), "utf-8")
+        .then(function(_readme) {
+            _readme = parse.readme(_readme);
+
+            options.title = options.title || _readme.title;
+            options.description = options.description || _readme.description || defaultDescription;
+        });
+    })
+
+    // Detect multi-languages book
+    .then(function() {
+        return containsFiles(options.input, ['LANGS.md'])
+    })
+
+    .then(function(isMultiLang) {
+        // Multi language book
+        if(isMultiLang) {
+            return generateMultiLang(options);
+        }
+
+        // Book
+        return generateBook(options);
+    });
+};
+
+
+var generateMultiLang = function(options) {
+    var langsSummary;
     options.output = options.output || path.join(options.input, "_book");
 
+    // Multi-languages book
+    return fs.readFile(path.join(options.input, "LANGS.md"), "utf-8")
+
     // Clean output folder
-    return fs.remove(options.output)
+    .then(function(_langsSummary) {
+        langsSummary = _langsSummary;
+        return fs.remove(options.output);
+    })
+    .then(function() {
+        return fs.mkdirp(options.output);
+    })
+
+    // Generate sub-books
+    .then(function() {
+        options.langsSummary = parse.langs(langsSummary);
+
+        // Generated a book for each valid entry
+        return _.reduce(options.langsSummary.list, function(prev, entry) {
+            return prev.then(function() {
+                return generate(_.extend({}, options, {
+                    input: path.join(options.input, entry.path),
+                    output: path.join(options.output, entry.path)
+                }));
+            })
+        }, Q());
+    })
+
+    .then(function() {
+        return loadGenerator(options);
+    })
+
+    // Generate languages index
+    .then(function(generator) {
+        return generator.langsIndex(options.langsSummary);
+    })
+
+    // Return options to caller
+    .then(_.constant(options));
+};
+
+/*
+ *  Use a specific generator to convert a gitbook to a site/pdf/ebook/
+ *  output is always a folder
+ */
+var generateBook = function(options) {
+    var files;
+
+    options.output = options.output || path.join(options.input, "_book");
+
+    // Check if it's a book
+    return containsFiles(options.input, ['SUMMARY.md', 'README.md'])
+
+    // Fail if not a book
+    .then(function(isBook) {
+        if(!isBook) {
+            return Q.reject(new Error("Invalid gitbook repository, need SUMMARY.md and README.md"));
+        }
+    })
+
+    // Clean output folder
+    .then(function() {
+        return fs.remove(options.output);
+    })
+
+    // Get repo's URL
+    .then(function() {
+        // Git deactivated
+        if(options.github === false) {
+            options.github = null;
+            return null;
+        } else if(options.github) {
+        // Git already specified in options
+            return options.github;
+        }
+
+        // Try auto detecting
+        return parse.git.url(options.input)
+        .then(function(_url) {
+            // Get ID of repo
+            return parse.git.githubID(_url);
+        }, function(err) {
+            return null;
+        })
+        .then(function(repoId) {
+            options.github = repoId;
+        });
+    })
 
     .then(function() {
         return fs.mkdirp(options.output);
@@ -67,104 +231,67 @@ var generate = function(options) {
         return fs.list(options.input)
         .then(function(_files) {
             files = _files;
+        });
+    })
+
+    .then(function() {
+        return loadGenerator(options);
+    })
+
+    // Convert files
+    .then(function(generator) {
+        // Generate the book
+        return Q()
+
+        // Get summary
+        .then(function() {
+            return fs.readFile(path.join(options.input, "SUMMARY.md"), "utf-8")
+            .then(function(_summary) {
+                options.summary = parse.summary(_summary);
+
+                // Parse navigation
+                options.navigation = parse.navigation(options.summary);
+            });
         })
-    })
 
-    // Create the generator
-    .then(function() {
-        generator = new generators[options.generator](options);
-    })
-
-    // Detect multi-languages book
-    .then(function() {
-        if (_.contains(files, "LANGS.md")) {
-            // Multi-languages book
-            return fs.readFile(path.join(options.input, "LANGS.md"), "utf-8")
-
-            // Generate sub-books
-            .then(function(_langsSummary) {
-                options.langsSummary = parse.langs(_langsSummary);
-
-                // Generated a book for each valid entry
-                return Q.all(
-                    _.map(options.langsSummary.list, function(entry) {
-                        return generate(_.extend({}, options, {
-                            input: path.join(options.input, entry.path),
-                            output: path.join(options.output, entry.path)
-                        }));
-                    })
+        // Skip processing some files
+        .then(function() {
+            files = _.filter(files, function (file) {
+                return !(
+                    file === 'SUMMARY.md'
                 );
-            })
-
-            // Generate languages index
-            .then(function() {
-                return generator.langsIndex(options.langsSummary);
             });
-        } else if (!_.contains(files, "SUMMARY.md") || !_.contains(files, "README.md")) {
-            // Invalid book
-            return Q.reject(new Error("Invalid gitbook repository, need SUMMARY.md and README.md"));
-        } else {
-            // Generate the book
-            return Q()
+        })
 
-            // Read readme
-            .then(function() {
-                return fs.readFile(path.join(options.input, "README.md"), "utf-8")
-                .then(function(_readme) {
-                    _readme = parse.readme(_readme);
+        // Copy file and replace markdown file
+        .then(function() {
+            return Q.all(
+                _.chain(files)
+                .map(function(file) {
+                    if (!file) return;
 
-                    options.title = options.title || _readme.title;
-                    options.description = options.description || _readme.description || defaultDescription;
-                });
-            })
+                    if (file[file.length -1] == "/") {
+                        return Q(generator.transferFolder(file));
+                    } else if (path.extname(file) == ".md" && options.navigation[file] != null) {
+                        return fs.readFile(path.join(options.input, file), "utf-8")
+                        .then(function(content) {
+                            return Q(generator.convertFile(content, file));
+                        });
+                    } else {
+                        return Q(generator.transferFile(file));
+                    }
+                })
+                .value()
+            );
+        })
 
-            // Get summary
-            .then(function() {
-                return fs.readFile(path.join(options.input, "SUMMARY.md"), "utf-8")
-                .then(function(_summary) {
-                    options.summary = parse.summary(_summary);
-
-                    // Parse navigation
-                    options.navigation = parse.navigation(options.summary);
-                });
-            })
-
-            // Skip processing some files
-            .then(function() {
-                files = _.filter(files, function (file) {
-                    return !(
-                        file === 'SUMMARY.md'
-                    );
-                });
-            })
-
-            // Copy file and replace markdown file
-            .then(function() {
-                return Q.all(
-                    _.chain(files)
-                    .map(function(file) {
-                        if (!file) return;
-
-                        if (file[file.length -1] == "/") {
-                            return Q(generator.transferFolder(file));
-                        } else if (path.extname(file) == ".md" && options.navigation[file] != null) {
-                            return fs.readFile(path.join(options.input, file), "utf-8")
-                            .then(function(content) {
-                                return Q(generator.convertFile(content, file));
-                            });
-                        } else {
-                            return Q(generator.transferFile(file));
-                        }
-                    })
-                    .value()
-                );
-            })
-
-            // Finish gneration
-            .then(function() {
-                return generator.finish();
-            });
-        }
+        // Finish generation
+        .then(function() {
+            return generator.finish();
+        })
+        .then(function() {
+            return generator.callHook("finish");
+        });
     })
 
     // Return all options
@@ -234,5 +361,7 @@ var generateFile = function(options) {
 module.exports = {
     generators: generators,
     folder: generate,
-    file: generateFile
+    file: generateFile,
+    book: generateBook,
+    Plugin: Plugin,
 };

lib/generate/json/index.js

@@ -1,6 +1,7 @@
 var util = require("util");
 var path = require("path");
 var Q = require("q");
+var _ = require("lodash");
 
 var fs = require("../fs");
 var parse = require("../../parse");
@@ -40,6 +41,35 @@ Generator.prototype.convertFile = function(content, input) {
     });
 };
 
+// Generate languages index
+// Contains the first languages readme and langs infos
+Generator.prototype.langsIndex = function(langs) {
+    var that = this;
+
+    if (langs.list.length == 0) return Q.reject("Need at least one language");
+
+    var mainLang = _.first(langs.list).lang;
+    console.log("Main language is", mainLang);
+
+    return Q()
+    .then(function() {
+        return fs.readFile(
+            path.join(that.options.output, mainLang, "README.json")
+        );
+    })
+    .then(function(content) {
+        var json = JSON.parse(content);
+        _.extend(json, {
+            langs: langs.list
+        });
+
+        return fs.writeFile(
+            path.join(that.options.output, "README.json"),
+            JSON.stringify(json, null, 4)
+        );
+    });
+};
+
 Generator.prototype.finish = function() {
     // ignore
 };

lib/generate/manifest.js

@@ -0,0 +1,72 @@
+var _ = require('lodash');
+var path = require('path');
+var Q = require('q');
+
+var fs = require("./fs");
+
+var extsToIgnore = [".gz"]
+
+var Manifest = function() {
+    this.revision = 0;
+    this.clear(Date.now());
+};
+
+// Regenerate manifest
+Manifest.prototype.clear = function(revision) {
+    if (revision) this.revision = revision;
+    this.sections = {
+        'CACHE': {},
+        'NETWORK': {},
+        'FALLBACK': {}
+    };
+    return Q(this);
+};
+
+// Add a resource
+Manifest.prototype.add = function(category, resource, value) {
+    if (_.isArray(resource)) {
+        _.each(resource, function(subres) {
+            this.add(category, subres, value);
+        }, this);
+        return;
+    }
+    this.sections[category][resource] = value;
+};
+
+// Add a directory in cache
+Manifest.prototype.addFolder = function(folder, root, except) {
+    var that = this;
+    root = root || "/";
+
+    return fs.list(folder)
+    .then(function(files) {
+        _.each(
+            // Ignore diretcories
+            _.filter(files, function(file) {
+                return file.substr(-1) != "/" && !_.contains(except, path.join(root, file)) && !_.contains(extsToIgnore, path.extname(file));
+            }),
+            function(file) {
+                that.add("CACHE", path.join(root, file));
+            }
+        );
+    })
+};
+
+// Get manifest content
+Manifest.prototype.dump = function() {
+    var lines = [
+        "CACHE MANIFEST",
+        "# Revision "+this.revision
+    ];
+
+    _.each(this.sections, function(content, section) {
+        if (_.size(content) == 0) return;
+        lines.push("");
+        lines.push(section+":");
+        lines = lines.concat(_.keys(content));
+    }, this);
+
+    return Q(lines.join("\n"));
+};
+
+module.exports = Manifest;

lib/generate/page/index.js

@@ -25,14 +25,18 @@ swig.setFilter('code', function(code, lang) {
 var Generator = function() {
     BaseGenerator.apply(this, arguments);
 
-    // Load base template
-    this.template = swig.compileFile(path.resolve(this.options.theme, 'templates/page.html'));
-
     // List of pages content
     this.pages = {};
 };
 util.inherits(Generator, BaseGenerator);
 
+// Load all templates
+Generator.prototype.loadTemplates = function() {
+    this.template = swig.compileFile(
+        this.plugins.template("page") || path.resolve(this.options.theme, 'templates/page.html')
+    );
+};
+
 Generator.prototype.convertFile = function(content, input) {
     var that = this;
     var json = {
@@ -46,6 +50,7 @@ Generator.prototype.convertFile = function(content, input) {
             repo: that.options.githubId,
             dir: path.dirname(input) || '/',
             outdir: './',
+            singleFile: true
         });
     })
     .then(function(sections) {

lib/generate/plugin.js

@@ -0,0 +1,207 @@
+var _ = require("lodash");
+var Q = require("q");
+var semver = require("semver");
+var path = require("path");
+var url = require("url");
+var fs = require("./fs");
+var resolve = require('resolve');
+
+var pkg = require("../../package.json");
+
+var  RESOURCES = ["js", "css"];
+
+var Plugin = function(name, root) {
+    this.name = name;
+    this.root = root;
+    this.packageInfos = {};
+    this.infos = {};
+
+    _.each([
+        "gitbook-plugin-"+name,
+        "gitbook-theme-"+name,
+        "gitbook-"+name,
+        name,
+    ], function(_name) {
+        if (this.load(_name, __dirname)) return false;
+        if (this.load(_name, path.resolve(root))) return false;
+    }, this);
+};
+
+// Load from a name
+Plugin.prototype.load = function(name, baseDir) {
+    try {
+        var res = resolve.sync(name+"/package.json", { basedir: baseDir });
+
+        this.baseDir = path.dirname(res);
+        this.packageInfos = require(res);
+        this.infos = require(resolve.sync(name, { basedir: baseDir }));
+        this.name = name;
+
+        return true;
+    } catch (e) {
+        return false;
+    }
+};
+
+// Return resources
+Plugin.prototype.getResources = function(resource) {
+    if (!this.infos.book || !this.infos.book[resource]) {
+        return [];
+    }
+    return _.chain(this.infos.book[resource])
+    .map(function(resource) {
+        var parsed = url.parse(resource);
+        if (parsed.protocol) return {"url": resource}
+        else return { "path": this.name+"/"+resource };
+    }.bind(this))
+    .value();
+};
+
+// Test if it's a valid plugin
+Plugin.prototype.isValid = function() {
+    return (
+        this.packageInfos
+        && this.packageInfos.name
+        && this.packageInfos.engines
+        && this.packageInfos.engines.gitbook
+        && semver.satisfies(pkg.version, this.packageInfos.engines.gitbook)
+    );
+};
+
+// Resolve file path
+Plugin.prototype.resolveFile = function(filename) {
+    return path.resolve(this.baseDir, filename);
+};
+
+// Resolve file path
+Plugin.prototype.callHook = function(name, context, data) {
+    var hookFunc = this.infos.hooks? this.infos.hooks[name] : null;
+    data = data || {};
+
+    if (!hookFunc) return Q(data);
+
+    return Q()
+    .then(function() {
+        return hookFunc.apply(context, [data]);
+    });
+};
+
+// Has assets
+Plugin.prototype.hasAssets = function(out) {
+    return (this.infos.book && this.infos.book.assets);
+};
+
+// Copy plugin assets fodler
+Plugin.prototype.copyAssets = function(out) {
+    if (!this.hasAssets()) return Q();
+    return fs.copy(
+        this.resolveFile(this.infos.book.assets),
+        out
+    );
+};
+
+
+
+
+// Normalize a list of plugin name to use
+Plugin.normalizeNames = function(names) {
+    // Normalize list to an array
+    names = _.isString(names) ? names.split(",") : (names || []);
+
+    // List plugins to remove
+    var toremove = _.chain(names)
+    .filter(function(name) {
+        return name.length > 0 && name[0] == "-";
+    })
+    .map(function(name) {
+        return name.slice(1)
+    })
+    .value();
+
+    // Merge with defaults
+    names = _.chain(names)
+    .concat(Plugin.defaults)
+    .uniq()
+    .value();
+
+    // Remove plugins starting with
+    names = _.filter(names, function(name) {
+        return !_.contains(toremove, name) && !(name.length > 0 && name[0] == "-");
+    });
+
+    return names;
+};
+
+// Extract data from a list of plugin
+Plugin.fromList = function(names, root) {
+    var failed = [];
+
+    // Load plugins
+    var plugins = _.map(names, function(name) {
+        var plugin = new Plugin(name, root);
+        if (!plugin.isValid()) failed.push(name);
+        return plugin;
+    });
+
+    if (_.size(failed) > 0) return Q.reject(new Error("Error loading plugins: "+failed.join(",")));
+
+    // Get all resources
+    var resources = _.chain(RESOURCES)
+    .map(function(resource) {
+        return [
+            resource,
+            _.chain(plugins)
+            .map(function(plugin) {
+                return plugin.getResources(resource);
+            })
+            .flatten()
+            .value()
+        ];
+    })
+    .object()
+    .value();
+    resources.html = {}
+
+    _.each(plugins, function(plugin) {
+        var html = plugin.infos.book.html || {};
+        _.each(html, function(code, key) {
+            if (!_.isFunction(code)) code = _.constant(code);
+            if (!resources.html[key]) resources.html[key] = [];
+            resources.html[key].push(code);
+        })
+    });
+
+    return Q({
+        'list': plugins,
+        'resources': resources,
+        'hook': function(name, context, data) {
+            return _.reduce(plugins, function(prev, plugin) {
+                return prev.then(function(ret) {
+                    return plugin.callHook(name, context, ret);
+                })
+            }, Q(data));
+        },
+        'template': function(name) {
+            var withTpl = _.find(plugins, function(plugin) {
+                return (plugin.infos.templates
+                    && plugin.infos.templates[name]);
+            });
+
+            if (!withTpl) return null;
+            return withTpl.resolveFile(withTpl.infos.templates[name]);
+        },
+        'html': function(tag, context, options) {
+            return _.map(resources.html[tag] || [], function(code) {
+                return code.call(context, options);
+            }).join("\n");
+        }
+    });
+};
+
+// Default plugins
+Plugin.defaults = [
+    "mixpanel",
+    "mathjax"
+];
+
+module.exports = Plugin;

lib/generate/site/index.js

@@ -9,6 +9,7 @@ var parse = require("../../parse");
 var BaseGenerator = require("../generator");
 
 var indexer = require('./search_indexer');
+var Manifest = require('../manifest');
 
 // Swig filter for returning the count of lines in a code section
 swig.setFilter('lines', function(content) {
@@ -30,17 +31,39 @@ var Generator = function() {
 
     this.revision = Date.now();
     this.indexer = indexer();
-
-    // Load base template
-    this.template = swig.compileFile(path.resolve(this.options.theme, 'templates/site.html'));
-    this.langsTemplate = swig.compileFile(path.resolve(this.options.theme, 'templates/langs.html'));
+    this.manifest = new Manifest(Date.now());
+    this.manifest.add("NETWORK", [
+        '*'
+    ]);
 };
 util.inherits(Generator, BaseGenerator);
 
+// Load all templates
+Generator.prototype.loadTemplates = function() {
+    this.template = swig.compileFile(
+        this.plugins.template("site") || path.resolve(this.options.theme, 'templates/site.html')
+    );
+    this.langsTemplate = swig.compileFile(
+        this.plugins.template("langs") || path.resolve(this.options.theme, 'templates/langs.html')
+    );
+};
+
+// Load plugins
+Generator.prototype.loadPlugins = function() {
+    var that = this;
+
+    return BaseGenerator.prototype.loadPlugins.apply(this)
+    .then(function() {
+        return that.loadTemplates();
+    });
+};
 
 // Generate a template
-Generator.prototype._writeTemplate = function(tpl, options, output) {
+Generator.prototype._writeTemplate = function(tpl, options, output, interpolate) {
     var that = this;
+
+    interpolate = interpolate || _.identity;
+
     return Q()
     .then(function(sections) {
         return tpl(_.extend({
@@ -54,9 +77,16 @@ Generator.prototype._writeTemplate = function(tpl, options, output) {
             githubHost: that.options.githubHost,
 
             summary: that.options.summary,
-            allNavigation: that.options.navigation
+            allNavigation: that.options.navigation,
+
+            plugins: that.plugins,
+            pluginsConfig: JSON.stringify(that.options.pluginsConfig),
+            htmlSnippet: _.partialRight(that.plugins.html, that, options),
+
+            options: that.options
         }, options));
     })
+    .then(interpolate)
     .then(function(html) {
         return fs.writeFile(
             output,
@@ -73,7 +103,6 @@ Generator.prototype.indexPage = function(lexed, pagePath) {
 // Convert a markdown file to html
 Generator.prototype.convertFile = function(content, _input) {
     var that = this;
-    var progress = parse.progress(this.options.navigation, _input);
 
     _output = _input.replace(".md", ".html");
     if (_output == "README.html") _output = "index.html";
@@ -82,10 +111,28 @@ Generator.prototype.convertFile = function(content, _input) {
     var output = path.join(this.options.output, _output);
     var basePath = path.relative(path.dirname(output), this.options.output) || ".";
 
+    var page = {
+        path: _input,
+        content: content,
+        progress: parse.progress(this.options.navigation, _input)
+    };
+
+    var _callHook = function(name) {
+        return that.callHook(name, page)
+        .then(function(_page) {
+            page = _page;
+            return page;
+        });
+    };
+
     return Q()
+    .then(function() {
+        // Send content to plugins
+        return _callHook("page:before");
+    })
     .then(function() {
         // Lex page
-        return parse.lex(content);
+        return parse.lex(page.content);
     })
     .then(function(lexed) {
         // Index page in search
@@ -101,15 +148,27 @@ Generator.prototype.convertFile = function(content, _input) {
         });
     })
     .then(function(sections) {
+        page.sections = sections;
+
+        // Use plugin hook
+        return _callHook("page");
+    })
+    .then(function() {
+        that.manifest.add("CACHE", _output);
+
         return that._writeTemplate(that.template, {
-            progress: progress,
+            progress: page.progress,
 
             _input: _input,
-            content: sections,
+            content: page.sections,
 
             basePath: basePath,
             staticBase: path.join(basePath, "gitbook"),
-        }, output);
+        }, output, function(html) {
+            page.content = html;
+
+            return _callHook("page:after").get("content")
+        });
     });
 };
 
@@ -134,10 +193,31 @@ Generator.prototype.langsIndex = function(langs) {
 Generator.prototype.copyAssets = function() {
     var that = this;
 
+    // Copy gitbook assets
     return fs.copy(
         path.join(that.options.theme, "assets"),
         path.join(that.options.output, "gitbook")
-    );
+    )
+
+    // Add to cach manifest
+    .then(function() {
+        return that.manifest.addFolder(path.join(that.options.output, "gitbook"), "gitbook");
+    })
+
+    // Copy plugins assets
+    .then(function() {
+        return Q.all(
+            _.map(that.plugins.list, function(plugin) {
+                if (!plugin.hasAssets()) return Q();
+
+                var pluginAssets = path.join(that.options.output, "gitbook/plugins/", plugin.name);
+                return plugin.copyAssets(pluginAssets)
+                .then(function() {
+                    return that.manifest.addFolder(pluginAssets, "gitbook/plugins/"+plugin.name);
+                });
+            })
+        );
+    })
 };
 
 // Dump search index to disk
@@ -148,9 +228,23 @@ Generator.prototype.writeSearchIndex = function() {
     );
 };
 
+
+// Add cache manifest
+Generator.prototype.writeCacheManifest = function() {
+    return fs.writeFile(
+        path.join(this.options.output, 'manifest.appcache'),
+        this.manifest.dump()
+    );
+};
+
 Generator.prototype.finish = function() {
-    return this.copyAssets()
-    .then(this.writeSearchIndex);
+    var deferred = this.copyAssets().then(this.writeSearchIndex);
+
+    if (this.options.cache !== false) {
+        deferred = deferred.then(this.writeCacheManifest);
+    }
+
+    return deferred;
 };
 
 module.exports = Generator;

lib/parse/git.js

@@ -0,0 +1,56 @@
+var Q = require('q');
+var _ = require('lodash');
+var cp = require('child_process');
+var url = require('url');
+
+// Get the remote of a given repo
+function gitURL(path) {
+    var d = Q.defer();
+
+    cp.exec("git config --get remote.origin.url", {
+        cwd: path,
+        env: process.env,
+    }, function(err, stdout, stderr) {
+        if(err) {
+            return d.reject(err);
+        }
+
+        return d.resolve(stdout);
+    });
+
+    return d.promise
+    .then(function(output) {
+        return output.replace(/(\r\n|\n|\r)/gm, "");
+    });
+}
+
+// Poorman's parsing
+// Parse a git URL to a github ID : username/reponame
+function githubID(_url) {
+    // Remove .git if it's in _url
+    var sliceEnd = _url.slice(-4) === '.git' ? -4 : _url.length;
+
+    // Detect HTTPS repos
+    var parsed = url.parse(_url);
+    if(parsed.protocol === 'https:' && parsed.host === 'github.com') {
+        return parsed.path.slice(1, sliceEnd);
+    }
+
+    // Detect SSH repos
+    if(_url.indexOf('git@') === 0) {
+        return _url.split(':', 2)[1].slice(0, sliceEnd);
+    }
+
+    // None found
+    return null;
+}
+
+function titleCase(str) {
+    return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
+}
+
+module.exports = {
+    url: gitURL,
+    githubID: githubID,
+    titleCase: titleCase
+};

lib/parse/index.js

@@ -5,5 +5,6 @@ module.exports = {
     lex: require('./lex'),
     progress: require('./progress'),
     navigation: require('./navigation'),
-    readme: require('./readme')
+    readme: require('./readme'),
+    git: require('./git')
 };

lib/parse/navigation.js

@@ -8,7 +8,7 @@ function clean(obj) {
 
 function flattenChapters(chapters) {
     return _.reduce(chapters, function(accu, chapter) {
-        return accu.concat([clean(chapter)].concat(chapter.articles));
+        return accu.concat([clean(chapter)].concat(flattenChapters(chapter.articles)));
     }, []);
 }
 

lib/parse/progress.js

@@ -12,7 +12,7 @@ var calculProgress = function(navigation, current) {
         return nav;
     })
     .sortBy(function(nav) {
-        return nav.level;
+        return parseFloat(nav.level);
     })
     .map(function(nav, i) {
         // Calcul percent
@@ -27,7 +27,7 @@ var calculProgress = function(navigation, current) {
         } else if (done) {
             prevPercent = nav.percent;
         }
-        
+
         return nav;
     })
     .value();

lib/parse/readme.js

@@ -1,5 +1,6 @@
 var _ = require('lodash');
 var marked = require('marked');
+var textRenderer = require('marked-text-renderer');
 
 function extractFirstNode(nodes, nType) {
     return _.chain(nodes)
@@ -14,16 +15,28 @@ function extractFirstNode(nodes, nType) {
 
 function parseReadme(src) {
     var nodes, title, description;
+    var renderer = textRenderer();
 
     // Parse content
     nodes = marked.lexer(src);
-    
-    var title = extractFirstNode(nodes, "heading");
-    var description = extractFirstNode(nodes, "paragraph");
+
+    title = extractFirstNode(nodes, "heading") || '';
+    description = extractFirstNode(nodes, "paragraph") || '';
+
+    var convert = _.compose(
+        function(text) {
+            return _.unescape(text.replace(/(\r\n|\n|\r)/gm, ""));
+        },
+        function(text) {
+            return marked.parse(text, _.extend({}, marked.defaults, {
+                renderer: renderer
+            }));
+        }
+    );
 
     return {
-        title: title,
-        description: description
+        title: convert(title),
+        description: convert(description)
     };
 }
 

lib/parse/renderer.js

@@ -1,5 +1,7 @@
 var url = require('url');
 var inherits = require('util').inherits;
+var links = require('../utils').links;
+
 
 var path = require('path');
 
@@ -16,6 +18,7 @@ function GitBookRenderer(options, extra_options) {
     this._extra_options = extra_options;
     this.quizRowId = 0;
     this.id = rendererId++;
+    this.quizIndex = 0;
 }
 inherits(GitBookRenderer, marked.Renderer);
 
@@ -38,23 +41,38 @@ GitBookRenderer.prototype._unsanitized = function(href) {
 };
 
 GitBookRenderer.prototype.link = function(href, title, text) {
+    // Our "fixed" href
+    var _href = href;
+
     // Don't build if it looks malicious
     if (this.options.sanitize && this._unsanitized(href)) {
-        return '';
+        return text;
     }
 
     // Parsed version of the url
     var parsed = url.parse(href);
 
     var o = this._extra_options;
+
     // Relative link, rewrite it to point to github repo
-    if(!parsed.protocol && parsed.path && parsed.path[0] != '/' && o && o.repo && o.dir) {
-        href = url.resolve('https://github.com/' + o.repo + '/blob/', [o.dir, href].join("/"));
-        parsed = url.parse(href);
+    if(links.isRelative(_href)) {
+        if (path.extname(_href) == ".md") {
+            _href = links.toAbsolute(_href, o.dir || "./", o.outdir || "./");
+
+            if (o.singleFile) {
+                _href = "#"+_href;
+            } else {
+                _href = _href.replace(".md", ".html");
+            }
+        } else if (o && o.repo && o.dir) {
+            href = url.resolve('https://github.com/' + o.repo + '/blob/', [o.dir, _href].join("/"));
+            parsed = url.parse(href);
+            _href = parsed.href;
+        }
     }
 
     // Generate HTML for link
-    var out = '<a href="' + parsed.href + '"';
+    var out = '<a href="' + _href + '"';
     // Title if no null
     if (title) {
         out += ' title="' + title + '"';
@@ -78,15 +96,11 @@ GitBookRenderer.prototype.image = function(href, title, text) {
     var o = this._extra_options;
 
     // Relative image, rewrite it depending output
-    if(!parsed.protocol && parsed.path && parsed.path[0] != '/' && o && o.dir && o.outdir) {
+    if(links.isRelative(href) && o && o.dir && o.outdir) {
         // o.dir: directory parent of the file currently in rendering process
         // o.outdir: directory parent from the html output
 
-        // Absolute file in source
-        _href = path.join(o.dir, _href);
-
-        // make it relative to output
-        _href = path.relative(o.outdir, _href);
+        _href = links.toAbsolute(_href, o.dir, o.outdir);
     }
 
     return GitBookRenderer.super_.prototype.image.call(this, _href, title, text);
@@ -103,10 +117,14 @@ GitBookRenderer.prototype._createCheckboxAndRadios = function(text) {
     if (!match) {
         return text;
     }
-    var field = "<input name='quiz-row-" + this.id + "-" + this.quizRowId + "' type='";
+    var quizIdentifier = 'quiz-row-' + this.id + '-' + this.quizRowId + '-' + this.quizIndex++;
+    var field = "<input name='" + quizIdentifier + "' id='" + quizIdentifier + "' type='";
     field += match[1] === '(' ? "radio" : "checkbox";
     field += match[2] === 'x' ? "' checked/>" : "'/>";
-    return text.replace(fieldRegex, field);
+    var splittedText = text.split(fieldRegex);
+    var length = splittedText.length;
+    var label = '<label class="quiz-label" for="' + quizIdentifier + '">' + splittedText[length - 1] + '</label>';
+    return text.replace(fieldRegex, field).replace(splittedText[length - 1], label);
 }
 
 GitBookRenderer.prototype.tablecell = function(content, flags) {

lib/parse/summary.js

@@ -82,17 +82,15 @@ function parseTitle(src, nums) {
         level: level,
 
         // Replace .md references with .html
-        path: matches[2],
+        path: matches[2].replace(/\\/g, '/'),
     };
 }
 
-function parseArticle(chapterNum, nodes, idx) {
-    return parseTitle(_.first(nodes).text, [chapterNum, idx+1]);
-}
-
-function parseChapter(nodes, idx) {
-    return _.extend(parseTitle(_.first(nodes).text, [idx+1]), {
-        articles: _.map(listSplit(filterList(nodes), 'list_item_start', 'list_item_end'), parseArticle.bind(null, idx+1))
+function parseChapter(nodes, nums) {
+    return _.extend(parseTitle(_.first(nodes).text, nums), {
+        articles: _.map(listSplit(filterList(nodes), 'list_item_start', 'list_item_end'), function(nodes, i) {
+            return parseChapter(nodes, nums.concat(i + 1));
+        })
     });
 }
 
@@ -104,7 +102,9 @@ function parseSummary(src) {
 
     // Split out chapter sections
     var chapters = _.chain(listSplit(chapterList, 'list_item_start', 'list_item_end'))
-    .map(parseChapter)
+    .map(function(nodes, i) {
+        return parseChapter(nodes, [i + 1]);
+    })
     .value();
 
     return {

lib/utils/index.js

@@ -1,3 +1,4 @@
 module.exports = {
     lang: require('./lang'),
+    links: require('./links')
 };

lib/utils/links.js

@@ -0,0 +1,33 @@
+var url = require('url');
+var path = require('path');
+
+// Return true if the link is relative
+var isRelative = function(href) {
+    var parsed = url.parse(href);
+
+    return !parsed.protocol && parsed.path && parsed.path[0] != '/';
+};
+
+// Relative to absolute path
+// dir: directory parent of the file currently in rendering process
+// outdir: directory parent from the html output
+
+var toAbsolute = function(_href, dir, outdir) {
+    // Absolute file in source
+    _href = path.join(dir, _href);
+
+    // make it relative to output
+    _href = path.relative(outdir, _href);
+
+    if (process.platform === 'win32') {
+        _href = _href.replace(/\\/g, '/');
+    }
+
+    return _href;
+};
+
+
+module.exports = {
+    isRelative: isRelative,
+    toAbsolute: toAbsolute
+};

package.json

@@ -1,6 +1,6 @@
 {
     "name": "gitbook",
-    "version": "0.2.3",
+    "version": "0.4.7",
     "homepage": "http://www.gitbook.io/",
     "description": "Library and cmd utility to generate GitBooks",
     "main": "lib/index.js",
@@ -16,14 +16,23 @@
         "commander": "2.2.0",
         "fs-extra": "0.8.1",
         "highlight.js": "8.0.0",
-        "tmp": "0.0.23"
+        "tmp": "0.0.23",
+        "semver": "2.2.1",
+        "gaze": "~0.5.1",
+        "resolve": "0.6.3",
+        "tiny-lr-fork": "0.0.5",
+        "gitbook-plugin": "0.0.2",
+        "gitbook-plugin-mixpanel": "0.0.2",
+        "gitbook-plugin-mathjax": "0.0.3",
+        "gitbook-plugin-livereload": "0.0.1"
     },
     "devDependencies": {
         "mocha": "1.18.2",
         "grunt": "~0.4.2",
         "grunt-cli": "0.1.11",
         "grunt-contrib-less": "~0.5.0",
-        "grunt-contrib-requirejs": "0.4.1"
+        "grunt-contrib-requirejs": "0.4.1",
+        "grunt-bower-install-simple": "0.9.2"
     },
     "scripts": {
         "test": "export TESTING=true; mocha --reporter list"

test/fixtures/MARKDOWN_LINKS.md

@@ -0,0 +1,5 @@
+# Nice course
+
+Check out this other chapter [Test](test.md)
+
+Check out this other chapter [Test](../before.md)

test/fixtures/SUMMARY.md

@@ -3,6 +3,8 @@
 * [Chapter 1](chapter-1/README.md)
     * [Article 1](chapter-1/ARTICLE1.md)
     * [Article 2](chapter-1/ARTICLE2.md)
+        * [article 1.2.1](chapter-1/ARTICLE-1-2-1.md)
+        * [article 1.2.2](chapter-1/ARTICLE-1-2-2.md)
 * [Chapter 2](chapter-2/README.md)
 * [Chapter 3](chapter-3/README.md)
 * [Chapter 4](chapter-4/README.md)

test/fixtures/book1/README.md

@@ -0,0 +1,2 @@
+# This is a test
+

test/fixtures/book1/SUMMARY.md

@@ -0,0 +1,3 @@
+# Summary
+
+* [test](test.md)

test/fixtures/book1/test.md

@@ -0,0 +1 @@
+# Test

test/fixtures/book2/README.md

@@ -0,0 +1 @@
+# This should fail

test/generate.js

@@ -0,0 +1,46 @@
+var _ = require('lodash');
+var Q = require('q');
+var path = require('path');
+var tmp = require('tmp');
+var assert = require('assert');
+
+var generate = require("../lib/generate");
+
+var generateTmpBook = function(path) {
+    return ;
+};
+
+
+var BOOKS = {
+    "book1": true,
+    "book2": false
+};
+
+describe('Site Generation', function () {
+    var ret = {};
+
+    beforeEach(function(done){
+        Q.all(_.map(BOOKS, function(state, bookName) {
+            return Q.nfcall(tmp.dir)
+            .then(function(_dir) {
+                return generate.folder({
+                    input: path.join(__dirname, "fixtures", bookName),
+                    output: _dir
+                });
+            })
+            .then(function(_book) {
+                ret[bookName] = _book;
+            }, function(err) {
+                // ignore errors here
+            });
+        }))
+        .fin(done);
+    });
+
+
+    it('should generate the valid sites', function() {
+        _.each(BOOKS, function(state, bookName) {
+            assert((ret[bookName] != null) == state);
+        });
+    });
+});

test/navigation.js

@@ -18,6 +18,8 @@ describe('Summary navigation', function() {
             'chapter-1/ARTICLE1.md',
             'chapter-1/ARTICLE2.md',
             'chapter-2/README.md',
+            'chapter-1/ARTICLE-1-2-1.md',
+            'chapter-1/ARTICLE-1-2-2.md'
         ]);
 
         // Make sure it found the files we gave it
@@ -26,6 +28,8 @@ describe('Summary navigation', function() {
         assert(nav['chapter-1/ARTICLE1.md']);
         assert(nav['chapter-1/ARTICLE2.md']);
         assert(nav['chapter-2/README.md']);
+        assert(nav['chapter-1/ARTICLE-1-2-1.md']);
+        assert(nav['chapter-1/ARTICLE-1-2-2.md']);
 
 
         assert.equal(nav['README.md'].prev, null);
@@ -38,9 +42,15 @@ describe('Summary navigation', function() {
         assert.equal(nav['chapter-1/ARTICLE1.md'].next.path, 'chapter-1/ARTICLE2.md');
 
         assert.equal(nav['chapter-1/ARTICLE2.md'].prev.path, 'chapter-1/ARTICLE1.md');
-        assert.equal(nav['chapter-1/ARTICLE2.md'].next.path, 'chapter-2/README.md');
+        assert.equal(nav['chapter-1/ARTICLE2.md'].next.path, 'chapter-1/ARTICLE-1-2-1.md');
 
-        assert.equal(nav['chapter-2/README.md'].prev.path, 'chapter-1/ARTICLE2.md');
+        assert.equal(nav['chapter-1/ARTICLE-1-2-1.md'].prev.path, 'chapter-1/ARTICLE2.md');
+        assert.equal(nav['chapter-1/ARTICLE-1-2-1.md'].next.path, 'chapter-1/ARTICLE-1-2-2.md');
+
+        assert.equal(nav['chapter-1/ARTICLE-1-2-2.md'].prev.path, 'chapter-1/ARTICLE-1-2-1.md');
+        assert.equal(nav['chapter-1/ARTICLE-1-2-2.md'].next.path, 'chapter-2/README.md');
+
+        assert.equal(nav['chapter-2/README.md'].prev.path, 'chapter-1/ARTICLE-1-2-2.md');
         assert.equal(nav['chapter-2/README.md'].next.path, 'chapter-3/README.md');
     });
 

test/page.js

@@ -84,11 +84,41 @@ describe('Relative links', function() {
             repo: 'GitBookIO/javascript',
 
             // Imaginary folder of markdown file
-            dir: 'course'
+            dir: 'course',
+            outdir: './'
         });
 
         assert(LEXED[0].content.indexOf('https://github.com/GitBookIO/javascript/blob/src/something.cpp') !== -1);
     });
+
+    it('should replace link to .md by link to .html', function() {
+        var LEXED = loadPage('MARKDOWN_LINKS', {
+            // GitHub repo ID
+            repo: 'GitBookIO/javascript',
+
+            // Imaginary folder of markdown file
+            dir: 'course',
+            outdir: 'course'
+        });
+
+        assert(LEXED[0].content.indexOf('test.html') !== -1);
+        assert(LEXED[0].content.indexOf('../before.html') !== -1);
+    });
+
+    it('should replace link to .md  by link to page in format single page', function() {
+        var LEXED = loadPage('MARKDOWN_LINKS', {
+            // GitHub repo ID
+            repo: 'GitBookIO/javascript',
+
+            // Imaginary folder of markdown file
+            dir: 'course',
+            outdir: './',
+            singleFile: true
+        });
+
+        assert(LEXED[0].content.indexOf('#course/test.md') !== -1);
+        assert(LEXED[0].content.indexOf('#before.md') !== -1);
+    });
 });
 
 describe('Relative images', function() {

test/plugin.js

@@ -0,0 +1,49 @@
+var _ = require('lodash');
+var path = require('path');
+var assert = require('assert');
+
+var Plugin = require('../').generate.Plugin;
+
+describe('Plugin validation', function () {
+    var plugin = new Plugin("plugin", __dirname);
+
+    it('should be valid', function() {
+        assert(plugin.isValid());
+    });
+});
+
+describe('Plugin list of names', function () {
+    var firstDefault = _.first(Plugin.defaults);
+
+    it('should convert string to array', function() {
+        var _name = "test";
+        assert(_.contains(Plugin.normalizeNames(_name), _name));
+    });
+
+    it('should contains default plugins', function() {
+        assert(_.contains(Plugin.normalizeNames([]), firstDefault));
+    });
+
+    it('should remove name starting with -', function() {
+        assert(!_.contains(Plugin.normalizeNames(["-"+firstDefault]), firstDefault));
+    });
+});
+
+describe('Plugin defaults loading', function () {
+    var ret = true;
+
+    beforeEach(function(done){
+        Plugin.fromList(Plugin.defaults, __dirname)
+        .then(function(_r) {
+            ret = _r;
+        }, function(err) {
+            ret = null;
+        })
+        .fin(done);
+    });
+
+
+    it('should load defaults addons', function() {
+        assert(ret != null);
+    });
+});

test/summary.js

@@ -50,5 +50,6 @@ describe('Summary parsing', function () {
 
         assert.equal(c[0].articles[0].level, '1.1');
         assert.equal(c[0].articles[1].level, '1.2');
+        assert.equal(c[0].articles[1].articles[0].level, '1.2.1');
     });
 });

theme/README.md

@@ -1,7 +0,0 @@
-# GitBook Theme
-
-For creating a theme for GitBook, just copy this folder. The theme folder should at least contains two folders: `assets` and `templates`.
-
-The theme can be changed using the option ```--theme=<path>```
-
-#### Warning! Theme system is going to change before version 1.0.0

theme/javascript/core/events.js

@@ -0,0 +1,7 @@
+define([
+    "jQuery"
+], function($) {
+   var events = $({});
+
+    return events;
+});

theme/javascript/core/exercise.js

@@ -1,9 +1,9 @@
 define([
     "jQuery",
     "utils/execute",
-    "utils/analytic",
+    "core/events",
     "core/state"
-], function($, execute, analytic, state){
+], function($, execute, events, state){
     // Bind an exercise
     var prepareExercise = function($exercise) {
         var codeSolution = $exercise.find(".code-solution").text();
@@ -19,7 +19,7 @@ define([
         $exercise.find(".action-submit").click(function(e) {
             e.preventDefault();
 
-            analytic.track("exercise.submit", {type: "code"});
+            events.trigger("exercise.submit", {type: "code"});
 
             execute("javascript", editor.getValue(), codeValidation, codeContext, function(err, result) {
                 $exercise.toggleClass("return-error", err != null);

theme/javascript/core/font-settings.js

@@ -0,0 +1,121 @@
+define([
+    "jQuery",
+    "utils/storage"
+], function($, storage) {
+    var fontState;
+
+    var THEMES = {
+        "white": 0,
+        "sepia": 1,
+        "night": 2
+    };
+
+    var FAMILY = {
+        "serif": 0,
+        "sans": 1
+    };
+
+    var togglePopover = function(e) {
+        var $dropdown = $("#font-settings-wrapper .dropdown-menu");
+
+        $dropdown.toggleClass("open");
+        e.stopPropagation();
+        e.preventDefault();
+    };
+
+    var closePopover = function(e) {
+        var $dropdown = $("#font-settings-wrapper .dropdown-menu");
+
+        $dropdown.removeClass("open");
+    };
+
+    var enlargeFontSize = function(e){
+        if (fontState.size < 4){
+            fontState.size++;
+            fontState.save();
+        }
+    };
+
+    var reduceFontSize = function(e){
+        if (fontState.size > 0){
+            fontState.size--;
+            fontState.save();
+        }
+    };
+
+    var changeFontFamily = function(){
+        var index = $(this).data("font");
+
+        fontState.family = index;
+        fontState.save();
+    };
+
+    var changeColorTheme = function(){
+        var $book = $(".book");
+        var index = $(this).data("theme");
+
+        if (fontState.theme !== 0)
+            $book.removeClass("color-theme-"+fontState.theme);
+
+        fontState.theme = index;
+        if (fontState.theme !== 0)
+            $book.addClass("color-theme-"+fontState.theme);
+
+        fontState.save();
+    };
+
+    var update = function() {
+        var $book = $(".book");
+
+        $(".font-settings .font-family-list li").removeClass("active");
+        $(".font-settings .font-family-list li:nth-child("+(fontState.family+1)+")").addClass("active");
+
+        $book[0].className = $book[0].className.replace(/\bfont-\S+/g, '');
+        $book.addClass("font-size-"+fontState.size);
+        $book.addClass("font-family-"+fontState.family);
+
+        if(fontState.theme !== 0) {
+            $book[0].className = $book[0].className.replace(/\bcolor-theme-\S+/g, '');
+            $book.addClass("color-theme-"+fontState.theme);
+        }
+    };
+
+    var init = function(config) {
+        var $toggle, $bookBody, $dropdown, $book;
+
+        //Find DOM elements.
+        $book = $(".book");
+        $toggle = $(".book-header .toggle-font-settings");
+        $dropdown = $("#font-settings-wrapper .dropdown-menu");
+        $bookBody = $(".book-body");
+
+        // Instantiate font state object
+        fontState = storage.get("fontState", {
+            size: config.size || 1,
+            family: FAMILY[config.family || "serif"],
+            theme: THEMES[config.theme || "white"]
+        });
+        fontState.save = function(){
+            storage.set("fontState",fontState);
+            update();
+        };
+
+        update();
+
+        //Add event listeners
+        $(document).on('click', "#enlarge-font-size", enlargeFontSize);
+        $(document).on('click', "#reduce-font-size", reduceFontSize);
+
+        $(document).on('click', "#font-settings-wrapper .font-family-list li", changeFontFamily);
+        $(document).on('click', "#font-settings-wrapper .color-theme-list button", changeColorTheme);
+
+        $(document).on('click', ".book-header .toggle-font-settings", togglePopover);
+        $(document).on('click', "#font-settings-wrapper .dropdown-menu", function(e){ e.stopPropagation(); });
+        $(document).on("click", closePopover);
+    };
+
+    return {
+        init: init,
+        update: update
+    }
+});

theme/javascript/core/loading.js

@@ -0,0 +1,16 @@
+define([
+    "jQuery"
+], function($) {
+    var showLoading = function(p) {
+        $(".book").addClass("is-loading");
+        p.always(function() {
+            $(".book").removeClass("is-loading");
+        });
+
+        return p;
+    };
+
+    return {
+        show: showLoading
+    };
+});

theme/javascript/core/navigation.js

@@ -1,38 +1,41 @@
 define([
     "jQuery",
-    "utils/analytic",
+    "utils/url",
+    "core/events",
     "core/state",
-    "core/search",
     "core/progress",
     "core/exercise",
-    "core/quiz"
-], function($, analytic, state, search, progress, exercises, quiz) {
+    "core/quiz",
+    "core/loading"
+], function($, URL, events, state, progress, exercises, quiz, loading) {
     var prev, next;
     var githubCountStars, githubCountWatch;
 
-    var usePushState = !navigator.userAgent.match('CriOS') && (typeof history.pushState !== "undefined");
+    var usePushState = (typeof history.pushState !== "undefined");
 
-    var updateHistory = function(url, title) {
-        history.pushState({ path: url }, title, url);
-    };
+    var handleNavigation = function(relativeUrl, push) {
+        var url = URL.join(window.location.pathname, relativeUrl);
+        console.log("navigate to ", url, "baseurl="+relativeUrl, "current="+window.location.pathname);
 
-    var handleNavigation = function(url, push) {
         if (!usePushState) {
             // Refresh the page to the new URL if pushState not supported
-            location.href = url;
+            location.href = relativeUrl;
             return
         }
 
-        return $.get(url)
+        return loading.show($.get(url)
         .done(function (html) {
-            if (push) updateHistory(url, null);
-            
+            // Push url to history
+            if (push) history.pushState({ path: url }, null, url);
+
+            // Replace html content
             html = html.replace( /<(\/?)(html|head|body)([^>]*)>/ig, function(a,b,c,d){
                 return '<' + b + 'div' + ( b ? '' : ' data-element="' + c + '"' ) + d + '>';
             });
 
             var $page = $(html);
             var $pageHead = $page.find("[data-element=head]");
+            var $pageBody = $page.find('.book');
 
             // Merge heads
             var headContent = $pageHead.html()
@@ -42,22 +45,22 @@ define([
             });
             $("head").html(headContent);
 
-            // Update header, body
-            $('.book-header').html($page.find('.book-header').html());
-            $('.book-body').html($page.find('.book-body').html());
-
-            // Update summary
+            // Merge body
+            var bodyClass = $(".book").attr("class");
             var scrollPosition = $('.book-summary .summary').scrollTop();
-            $('.book-summary').html($page.find('.book-summary').html());
+            $pageBody.toggleClass("with-summary", $(".book").hasClass("with-summary"))
+
+            $(".book").replaceWith($pageBody);
+            $(".book").attr("class", bodyClass);
             $('.book-summary .summary').scrollTop(scrollPosition);
 
             // Update state
             state.update($("html"));
             preparePage();
         })
-        .fail(function () {
-            location.href = url;
-        });
+        .fail(function (e) {
+            location.href = relativeUrl;
+        }));
     };
 
     var updateGitHubCounts = function() {
@@ -92,9 +95,6 @@ define([
         // Focus on content
         $pageWrapper.focus();
 
-        // Prepare search bar
-        search.prepare();
-
         // Update GitHub count
         if (state.githubId) {
             if (githubCountStars) {
@@ -110,7 +110,7 @@ define([
         }
 
         // Send to mixpanel
-        analytic.track("page.view");
+        events.trigger("page.change");
     };
 
     var handlePagination = function (e) {
@@ -131,7 +131,7 @@ define([
         if (url) handleNavigation(url, true);
     };
 
-    
+
 
     var init = function() {
         // Prevent cache so that using the back button works
@@ -148,14 +148,13 @@ define([
             if (event.state === null) {
                 return;
             }
-
             return handleNavigation(event.state.path, false);
         };
 
         $(document).on('click', ".navigation-prev", handlePagination);
         $(document).on('click', ".navigation-next", handlePagination);
         $(document).on('click', ".summary [data-path] a", handlePagination);
-        
+
         $(window).resize(updateNavigationPosition);
 
         // Prepare current page

theme/javascript/core/quiz.js

@@ -1,9 +1,9 @@
 define([
     "jQuery",
     "utils/execute",
-    "utils/analytic",
+    "core/events",
     "core/state"
-], function($, execute, analytic, state){
+], function($, execute, events, state){
     // Bind an exercise
     var prepareQuiz = function($quiz) {
 
@@ -14,7 +14,7 @@ define([
         // Submit: test code
         $quiz.find(".action-submit").click(function(e) {
             e.preventDefault();
-            analytic.track("exercise.submit", {type: "quiz"});
+            events.trigger("exercise.submit", {type: "quiz"});
             $quiz.find("tr.alert-danger,li.alert-danger").removeClass("alert-danger");
             $quiz.find(".alert-success,.alert-danger").addClass("hidden");
 

theme/javascript/core/search.js

@@ -67,12 +67,10 @@ define([
             e.preventDefault();
             toggleSearch();
         });
-    };
 
-    var prepare = function() {
-        var $searchInput = $(".book-search input");
 
-        $searchInput.keyup(function(e) {
+        // Type in search bar
+        $(document).on("keyup", ".book-search input", function(e) {
             var key = (e.keyCode ? e.keyCode : e.which);
             var q = $(this).val();
 
@@ -89,13 +87,12 @@ define([
                     _.pluck(results, "path")
                 );
             }
-        });
-    }
+        })
+    };
 
     return {
         init: init,
         search: search,
-        toggle: toggleSearch,
-        prepare: prepare
+        toggle: toggleSearch
     };
 });

theme/javascript/core/sidebar.js

@@ -1,11 +1,10 @@
 define([
+    "jQuery",
     "lodash",
     "utils/storage",
     "utils/platform",
     "core/state"
-], function(_, storage, platform, state) {
-    var $summary = state.$book.find(".book-summary");
-
+], function($, _, storage, platform, state) {
     // Toggle sidebar with or withour animation
     var toggleSidebar = function(_state, animation) {
         if (state != null && isOpen() == _state) return;
@@ -38,6 +37,8 @@ define([
 
     // Filter summary with a list of path
     var filterSummary = function(paths) {
+        var $summary = $(".book-summary");
+
         $summary.find("li").each(function() {
             var path = $(this).data("path");
             var st = paths == null || _.contains(paths, path);
@@ -48,7 +49,6 @@ define([
     };
 
     return {
-        $el: $summary,
         init: init,
         toggle: toggleSidebar,
         filter: filterSummary

theme/javascript/gitbook.js

@@ -1,17 +1,19 @@
-require([
+define([
     "jQuery",
     "utils/storage",
-    "utils/analytic",
     "utils/sharing",
+    "utils/appcache",
 
+    "core/events",
+    "core/font-settings",
     "core/state",
     "core/keyboard",
     "core/navigation",
     "core/progress",
     "core/sidebar",
     "core/search"
-], function($, storage, analytic, sharing, state, keyboard, navigation, progress, sidebar, search){
-    $(document).ready(function() {
+], function($, storage, appCache, sharing, events, fontSettings, state, keyboard, navigation, progress, sidebar, search){
+    var start = function(config) {
         var $book;
         $book = state.$book;
 
@@ -29,10 +31,23 @@ require([
         // Init keyboard
         keyboard.init();
 
+        // Init appcache
+        appCache.init();
+
         // Bind sharing button
         sharing.init();
-        
+
         // Init navigation
         navigation.init();
-    });
+
+        //Init font settings
+        fontSettings.init(config.fontSettings || {});
+
+        events.trigger("start", config);
+    }
+
+    return {
+        start: start,
+        events: events
+    };
 });

theme/javascript/utils/analytic.js

@@ -1,36 +0,0 @@
-define([
-    "lodash"
-], function(_) {
-    var isAvailable = function() {
-        return (
-            typeof mixpanel !== "undefined" &&
-            typeof mixpanel.track === "function"
-        );
-    };
-
-    var track = function(e, data, t) {
-        if (!isAvailable()) {
-            console.warn("tracking not available!");
-            t = t || 500;
-            setTimeout(function() {
-                console.log(" -> retest tracking");
-                track(e, data, t*2);
-            }, t);
-            return;
-        }
-        console.log("track", e);
-        mixpanel.track(e, _.extend(data || {}, {
-            'domain': window.location.host
-        }));
-    };
-
-    setTimeout(function() {
-        mixpanel.init("01eb2b950ae09a5fdb15a98dcc5ff20e");
-        track("page.start");
-    }, 0);   
-
-    return {
-        isAvailable: isAvailable,
-        track: track
-    };
-});

theme/javascript/utils/appcache.js

@@ -0,0 +1,15 @@
+define([], function() {
+    var isAvailable = (typeof applicationCache !== "undefined");
+
+    var init = function() {
+        if (!isAvailable) return;
+
+        window.applicationCache.addEventListener('updateready', function() {
+            window.location.reload();
+        }, false);
+    };
+
+    return {
+        init: init
+    };
+});

theme/javascript/utils/url.js

@@ -0,0 +1,33 @@
+define([
+    "vendors/URIjs/src/URI"
+], function(URI) {
+    // Joins path segments.  Preserves initial "/" and resolves ".." and "."
+    // Does not support using ".." to go above/outside the root.
+    // This means that join("foo", "../../bar") will not resolve to "../bar"
+    function join(baseUrl, url) {
+        var theUrl = new URI(url);
+        if (theUrl.is("relative")) {
+            theUrl = theUrl.absoluteTo(baseUrl);
+        }
+        return theUrl.toString();
+    }
+
+    // A simple function to get the dirname of a path
+    // Trailing slashes are ignored. Leading slash is preserved.
+    function dirname(path) {
+        return join(path, "..");
+    }
+
+    // test if a path or url is absolute
+    function isAbsolute(path) {
+        if (!path) return false;
+
+        return (path[0] == "/" || path.indexOf("http://") == 0 || path.indexOf("https://") == 0);
+    }
+
+    return {
+        dirname: dirname,
+        join: join,
+        isAbsolute: isAbsolute
+    };
+})

theme/javascript/vendors/mousetrap.js

@@ -1,953 +0,0 @@
-/*global define:false */
-/**
- * Copyright 2013 Craig Campbell
- *
- * Licensed 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.
- *
- * Mousetrap is a simple keyboard shortcut library for Javascript with
- * no external dependencies
- *
- * @version 1.4.6
- * @url craig.is/killing/mice
- */
-(function(window, document, undefined) {
-
-    /**
-     * mapping of special keycodes to their corresponding keys
-     *
-     * everything in this dictionary cannot use keypress events
-     * so it has to be here to map to the correct keycodes for
-     * keyup/keydown events
-     *
-     * @type {Object}
-     */
-    var _MAP = {
-            8: 'backspace',
-            9: 'tab',
-            13: 'enter',
-            16: 'shift',
-            17: 'ctrl',
-            18: 'alt',
-            20: 'capslock',
-            27: 'esc',
-            32: 'space',
-            33: 'pageup',
-            34: 'pagedown',
-            35: 'end',
-            36: 'home',
-            37: 'left',
-            38: 'up',
-            39: 'right',
-            40: 'down',
-            45: 'ins',
-            46: 'del',
-            91: 'meta',
-            93: 'meta',
-            224: 'meta'
-        },
-
-        /**
-         * mapping for special characters so they can support
-         *
-         * this dictionary is only used incase you want to bind a
-         * keyup or keydown event to one of these keys
-         *
-         * @type {Object}
-         */
-        _KEYCODE_MAP = {
-            106: '*',
-            107: '+',
-            109: '-',
-            110: '.',
-            111 : '/',
-            186: ';',
-            187: '=',
-            188: ',',
-            189: '-',
-            190: '.',
-            191: '/',
-            192: '`',
-            219: '[',
-            220: '\\',
-            221: ']',
-            222: '\''
-        },
-
-        /**
-         * this is a mapping of keys that require shift on a US keypad
-         * back to the non shift equivelents
-         *
-         * this is so you can use keyup events with these keys
-         *
-         * note that this will only work reliably on US keyboards
-         *
-         * @type {Object}
-         */
-        _SHIFT_MAP = {
-            '~': '`',
-            '!': '1',
-            '@': '2',
-            '#': '3',
-            '$': '4',
-            '%': '5',
-            '^': '6',
-            '&': '7',
-            '*': '8',
-            '(': '9',
-            ')': '0',
-            '_': '-',
-            '+': '=',
-            ':': ';',
-            '\"': '\'',
-            '<': ',',
-            '>': '.',
-            '?': '/',
-            '|': '\\'
-        },
-
-        /**
-         * this is a list of special strings you can use to map
-         * to modifier keys when you specify your keyboard shortcuts
-         *
-         * @type {Object}
-         */
-        _SPECIAL_ALIASES = {
-            'option': 'alt',
-            'command': 'meta',
-            'return': 'enter',
-            'escape': 'esc',
-            'mod': /Mac|iPod|iPhone|iPad/.test(navigator.platform) ? 'meta' : 'ctrl'
-        },
-
-        /**
-         * variable to store the flipped version of _MAP from above
-         * needed to check if we should use keypress or not when no action
-         * is specified
-         *
-         * @type {Object|undefined}
-         */
-        _REVERSE_MAP,
-
-        /**
-         * a list of all the callbacks setup via Mousetrap.bind()
-         *
-         * @type {Object}
-         */
-        _callbacks = {},
-
-        /**
-         * direct map of string combinations to callbacks used for trigger()
-         *
-         * @type {Object}
-         */
-        _directMap = {},
-
-        /**
-         * keeps track of what level each sequence is at since multiple
-         * sequences can start out with the same sequence
-         *
-         * @type {Object}
-         */
-        _sequenceLevels = {},
-
-        /**
-         * variable to store the setTimeout call
-         *
-         * @type {null|number}
-         */
-        _resetTimer,
-
-        /**
-         * temporary state where we will ignore the next keyup
-         *
-         * @type {boolean|string}
-         */
-        _ignoreNextKeyup = false,
-
-        /**
-         * temporary state where we will ignore the next keypress
-         *
-         * @type {boolean}
-         */
-        _ignoreNextKeypress = false,
-
-        /**
-         * are we currently inside of a sequence?
-         * type of action ("keyup" or "keydown" or "keypress") or false
-         *
-         * @type {boolean|string}
-         */
-        _nextExpectedAction = false;
-
-    /**
-     * loop through the f keys, f1 to f19 and add them to the map
-     * programatically
-     */
-    for (var i = 1; i < 20; ++i) {
-        _MAP[111 + i] = 'f' + i;
-    }
-
-    /**
-     * loop through to map numbers on the numeric keypad
-     */
-    for (i = 0; i <= 9; ++i) {
-        _MAP[i + 96] = i;
-    }
-
-    /**
-     * cross browser add event method
-     *
-     * @param {Element|HTMLDocument} object
-     * @param {string} type
-     * @param {Function} callback
-     * @returns void
-     */
-    function _addEvent(object, type, callback) {
-        if (object.addEventListener) {
-            object.addEventListener(type, callback, false);
-            return;
-        }
-
-        object.attachEvent('on' + type, callback);
-    }
-
-    /**
-     * takes the event and returns the key character
-     *
-     * @param {Event} e
-     * @return {string}
-     */
-    function _characterFromEvent(e) {
-
-        // for keypress events we should return the character as is
-        if (e.type == 'keypress') {
-            var character = String.fromCharCode(e.which);
-
-            // if the shift key is not pressed then it is safe to assume
-            // that we want the character to be lowercase.  this means if
-            // you accidentally have caps lock on then your key bindings
-            // will continue to work
-            //
-            // the only side effect that might not be desired is if you
-            // bind something like 'A' cause you want to trigger an
-            // event when capital A is pressed caps lock will no longer
-            // trigger the event.  shift+a will though.
-            if (!e.shiftKey) {
-                character = character.toLowerCase();
-            }
-
-            return character;
-        }
-
-        // for non keypress events the special maps are needed
-        if (_MAP[e.which]) {
-            return _MAP[e.which];
-        }
-
-        if (_KEYCODE_MAP[e.which]) {
-            return _KEYCODE_MAP[e.which];
-        }
-
-        // if it is not in the special map
-
-        // with keydown and keyup events the character seems to always
-        // come in as an uppercase character whether you are pressing shift
-        // or not.  we should make sure it is always lowercase for comparisons
-        return String.fromCharCode(e.which).toLowerCase();
-    }
-
-    /**
-     * checks if two arrays are equal
-     *
-     * @param {Array} modifiers1
-     * @param {Array} modifiers2
-     * @returns {boolean}
-     */
-    function _modifiersMatch(modifiers1, modifiers2) {
-        return modifiers1.sort().join(',') === modifiers2.sort().join(',');
-    }
-
-    /**
-     * resets all sequence counters except for the ones passed in
-     *
-     * @param {Object} doNotReset
-     * @returns void
-     */
-    function _resetSequences(doNotReset) {
-        doNotReset = doNotReset || {};
-
-        var activeSequences = false,
-            key;
-
-        for (key in _sequenceLevels) {
-            if (doNotReset[key]) {
-                activeSequences = true;
-                continue;
-            }
-            _sequenceLevels[key] = 0;
-        }
-
-        if (!activeSequences) {
-            _nextExpectedAction = false;
-        }
-    }
-
-    /**
-     * finds all callbacks that match based on the keycode, modifiers,
-     * and action
-     *
-     * @param {string} character
-     * @param {Array} modifiers
-     * @param {Event|Object} e
-     * @param {string=} sequenceName - name of the sequence we are looking for
-     * @param {string=} combination
-     * @param {number=} level
-     * @returns {Array}
-     */
-    function _getMatches(character, modifiers, e, sequenceName, combination, level) {
-        var i,
-            callback,
-            matches = [],
-            action = e.type;
-
-        // if there are no events related to this keycode
-        if (!_callbacks[character]) {
-            return [];
-        }
-
-        // if a modifier key is coming up on its own we should allow it
-        if (action == 'keyup' && _isModifier(character)) {
-            modifiers = [character];
-        }
-
-        // loop through all callbacks for the key that was pressed
-        // and see if any of them match
-        for (i = 0; i < _callbacks[character].length; ++i) {
-            callback = _callbacks[character][i];
-
-            // if a sequence name is not specified, but this is a sequence at
-            // the wrong level then move onto the next match
-            if (!sequenceName && callback.seq && _sequenceLevels[callback.seq] != callback.level) {
-                continue;
-            }
-
-            // if the action we are looking for doesn't match the action we got
-            // then we should keep going
-            if (action != callback.action) {
-                continue;
-            }
-
-            // if this is a keypress event and the meta key and control key
-            // are not pressed that means that we need to only look at the
-            // character, otherwise check the modifiers as well
-            //
-            // chrome will not fire a keypress if meta or control is down
-            // safari will fire a keypress if meta or meta+shift is down
-            // firefox will fire a keypress if meta or control is down
-            if ((action == 'keypress' && !e.metaKey && !e.ctrlKey) || _modifiersMatch(modifiers, callback.modifiers)) {
-
-                // when you bind a combination or sequence a second time it
-                // should overwrite the first one.  if a sequenceName or
-                // combination is specified in this call it does just that
-                //
-                // @todo make deleting its own method?
-                var deleteCombo = !sequenceName && callback.combo == combination;
-                var deleteSequence = sequenceName && callback.seq == sequenceName && callback.level == level;
-                if (deleteCombo || deleteSequence) {
-                    _callbacks[character].splice(i, 1);
-                }
-
-                matches.push(callback);
-            }
-        }
-
-        return matches;
-    }
-
-    /**
-     * takes a key event and figures out what the modifiers are
-     *
-     * @param {Event} e
-     * @returns {Array}
-     */
-    function _eventModifiers(e) {
-        var modifiers = [];
-
-        if (e.shiftKey) {
-            modifiers.push('shift');
-        }
-
-        if (e.altKey) {
-            modifiers.push('alt');
-        }
-
-        if (e.ctrlKey) {
-            modifiers.push('ctrl');
-        }
-
-        if (e.metaKey) {
-            modifiers.push('meta');
-        }
-
-        return modifiers;
-    }
-
-    /**
-     * prevents default for this event
-     *
-     * @param {Event} e
-     * @returns void
-     */
-    function _preventDefault(e) {
-        if (e.preventDefault) {
-            e.preventDefault();
-            return;
-        }
-
-        e.returnValue = false;
-    }
-
-    /**
-     * stops propogation for this event
-     *
-     * @param {Event} e
-     * @returns void
-     */
-    function _stopPropagation(e) {
-        if (e.stopPropagation) {
-            e.stopPropagation();
-            return;
-        }
-
-        e.cancelBubble = true;
-    }
-
-    /**
-     * actually calls the callback function
-     *
-     * if your callback function returns false this will use the jquery
-     * convention - prevent default and stop propogation on the event
-     *
-     * @param {Function} callback
-     * @param {Event} e
-     * @returns void
-     */
-    function _fireCallback(callback, e, combo, sequence) {
-
-        // if this event should not happen stop here
-        if (Mousetrap.stopCallback(e, e.target || e.srcElement, combo, sequence)) {
-            return;
-        }
-
-        if (callback(e, combo) === false) {
-            _preventDefault(e);
-            _stopPropagation(e);
-        }
-    }
-
-    /**
-     * handles a character key event
-     *
-     * @param {string} character
-     * @param {Array} modifiers
-     * @param {Event} e
-     * @returns void
-     */
-    function _handleKey(character, modifiers, e) {
-        var callbacks = _getMatches(character, modifiers, e),
-            i,
-            doNotReset = {},
-            maxLevel = 0,
-            processedSequenceCallback = false;
-
-        // Calculate the maxLevel for sequences so we can only execute the longest callback sequence
-        for (i = 0; i < callbacks.length; ++i) {
-            if (callbacks[i].seq) {
-                maxLevel = Math.max(maxLevel, callbacks[i].level);
-            }
-        }
-
-        // loop through matching callbacks for this key event
-        for (i = 0; i < callbacks.length; ++i) {
-
-            // fire for all sequence callbacks
-            // this is because if for example you have multiple sequences
-            // bound such as "g i" and "g t" they both need to fire the
-            // callback for matching g cause otherwise you can only ever
-            // match the first one
-            if (callbacks[i].seq) {
-
-                // only fire callbacks for the maxLevel to prevent
-                // subsequences from also firing
-                //
-                // for example 'a option b' should not cause 'option b' to fire
-                // even though 'option b' is part of the other sequence
-                //
-                // any sequences that do not match here will be discarded
-                // below by the _resetSequences call
-                if (callbacks[i].level != maxLevel) {
-                    continue;
-                }
-
-                processedSequenceCallback = true;
-
-                // keep a list of which sequences were matches for later
-                doNotReset[callbacks[i].seq] = 1;
-                _fireCallback(callbacks[i].callback, e, callbacks[i].combo, callbacks[i].seq);
-                continue;
-            }
-
-            // if there were no sequence matches but we are still here
-            // that means this is a regular match so we should fire that
-            if (!processedSequenceCallback) {
-                _fireCallback(callbacks[i].callback, e, callbacks[i].combo);
-            }
-        }
-
-        // if the key you pressed matches the type of sequence without
-        // being a modifier (ie "keyup" or "keypress") then we should
-        // reset all sequences that were not matched by this event
-        //
-        // this is so, for example, if you have the sequence "h a t" and you
-        // type "h e a r t" it does not match.  in this case the "e" will
-        // cause the sequence to reset
-        //
-        // modifier keys are ignored because you can have a sequence
-        // that contains modifiers such as "enter ctrl+space" and in most
-        // cases the modifier key will be pressed before the next key
-        //
-        // also if you have a sequence such as "ctrl+b a" then pressing the
-        // "b" key will trigger a "keypress" and a "keydown"
-        //
-        // the "keydown" is expected when there is a modifier, but the
-        // "keypress" ends up matching the _nextExpectedAction since it occurs
-        // after and that causes the sequence to reset
-        //
-        // we ignore keypresses in a sequence that directly follow a keydown
-        // for the same character
-        var ignoreThisKeypress = e.type == 'keypress' && _ignoreNextKeypress;
-        if (e.type == _nextExpectedAction && !_isModifier(character) && !ignoreThisKeypress) {
-            _resetSequences(doNotReset);
-        }
-
-        _ignoreNextKeypress = processedSequenceCallback && e.type == 'keydown';
-    }
-
-    /**
-     * handles a keydown event
-     *
-     * @param {Event} e
-     * @returns void
-     */
-    function _handleKeyEvent(e) {
-
-        // normalize e.which for key events
-        // @see http://stackoverflow.com/questions/4285627/javascript-keycode-vs-charcode-utter-confusion
-        if (typeof e.which !== 'number') {
-            e.which = e.keyCode;
-        }
-
-        var character = _characterFromEvent(e);
-
-        // no character found then stop
-        if (!character) {
-            return;
-        }
-
-        // need to use === for the character check because the character can be 0
-        if (e.type == 'keyup' && _ignoreNextKeyup === character) {
-            _ignoreNextKeyup = false;
-            return;
-        }
-
-        Mousetrap.handleKey(character, _eventModifiers(e), e);
-    }
-
-    /**
-     * determines if the keycode specified is a modifier key or not
-     *
-     * @param {string} key
-     * @returns {boolean}
-     */
-    function _isModifier(key) {
-        return key == 'shift' || key == 'ctrl' || key == 'alt' || key == 'meta';
-    }
-
-    /**
-     * called to set a 1 second timeout on the specified sequence
-     *
-     * this is so after each key press in the sequence you have 1 second
-     * to press the next key before you have to start over
-     *
-     * @returns void
-     */
-    function _resetSequenceTimer() {
-        clearTimeout(_resetTimer);
-        _resetTimer = setTimeout(_resetSequences, 1000);
-    }
-
-    /**
-     * reverses the map lookup so that we can look for specific keys
-     * to see what can and can't use keypress
-     *
-     * @return {Object}
-     */
-    function _getReverseMap() {
-        if (!_REVERSE_MAP) {
-            _REVERSE_MAP = {};
-            for (var key in _MAP) {
-
-                // pull out the numeric keypad from here cause keypress should
-                // be able to detect the keys from the character
-                if (key > 95 && key < 112) {
-                    continue;
-                }
-
-                if (_MAP.hasOwnProperty(key)) {
-                    _REVERSE_MAP[_MAP[key]] = key;
-                }
-            }
-        }
-        return _REVERSE_MAP;
-    }
-
-    /**
-     * picks the best action based on the key combination
-     *
-     * @param {string} key - character for key
-     * @param {Array} modifiers
-     * @param {string=} action passed in
-     */
-    function _pickBestAction(key, modifiers, action) {
-
-        // if no action was picked in we should try to pick the one
-        // that we think would work best for this key
-        if (!action) {
-            action = _getReverseMap()[key] ? 'keydown' : 'keypress';
-        }
-
-        // modifier keys don't work as expected with keypress,
-        // switch to keydown
-        if (action == 'keypress' && modifiers.length) {
-            action = 'keydown';
-        }
-
-        return action;
-    }
-
-    /**
-     * binds a key sequence to an event
-     *
-     * @param {string} combo - combo specified in bind call
-     * @param {Array} keys
-     * @param {Function} callback
-     * @param {string=} action
-     * @returns void
-     */
-    function _bindSequence(combo, keys, callback, action) {
-
-        // start off by adding a sequence level record for this combination
-        // and setting the level to 0
-        _sequenceLevels[combo] = 0;
-
-        /**
-         * callback to increase the sequence level for this sequence and reset
-         * all other sequences that were active
-         *
-         * @param {string} nextAction
-         * @returns {Function}
-         */
-        function _increaseSequence(nextAction) {
-            return function() {
-                _nextExpectedAction = nextAction;
-                ++_sequenceLevels[combo];
-                _resetSequenceTimer();
-            };
-        }
-
-        /**
-         * wraps the specified callback inside of another function in order
-         * to reset all sequence counters as soon as this sequence is done
-         *
-         * @param {Event} e
-         * @returns void
-         */
-        function _callbackAndReset(e) {
-            _fireCallback(callback, e, combo);
-
-            // we should ignore the next key up if the action is key down
-            // or keypress.  this is so if you finish a sequence and
-            // release the key the final key will not trigger a keyup
-            if (action !== 'keyup') {
-                _ignoreNextKeyup = _characterFromEvent(e);
-            }
-
-            // weird race condition if a sequence ends with the key
-            // another sequence begins with
-            setTimeout(_resetSequences, 10);
-        }
-
-        // loop through keys one at a time and bind the appropriate callback
-        // function.  for any key leading up to the final one it should
-        // increase the sequence. after the final, it should reset all sequences
-        //
-        // if an action is specified in the original bind call then that will
-        // be used throughout.  otherwise we will pass the action that the
-        // next key in the sequence should match.  this allows a sequence
-        // to mix and match keypress and keydown events depending on which
-        // ones are better suited to the key provided
-        for (var i = 0; i < keys.length; ++i) {
-            var isFinal = i + 1 === keys.length;
-            var wrappedCallback = isFinal ? _callbackAndReset : _increaseSequence(action || _getKeyInfo(keys[i + 1]).action);
-            _bindSingle(keys[i], wrappedCallback, action, combo, i);
-        }
-    }
-
-    /**
-     * Converts from a string key combination to an array
-     *
-     * @param  {string} combination like "command+shift+l"
-     * @return {Array}
-     */
-    function _keysFromString(combination) {
-        if (combination === '+') {
-            return ['+'];
-        }
-
-        return combination.split('+');
-    }
-
-    /**
-     * Gets info for a specific key combination
-     *
-     * @param  {string} combination key combination ("command+s" or "a" or "*")
-     * @param  {string=} action
-     * @returns {Object}
-     */
-    function _getKeyInfo(combination, action) {
-        var keys,
-            key,
-            i,
-            modifiers = [];
-
-        // take the keys from this pattern and figure out what the actual
-        // pattern is all about
-        keys = _keysFromString(combination);
-
-        for (i = 0; i < keys.length; ++i) {
-            key = keys[i];
-
-            // normalize key names
-            if (_SPECIAL_ALIASES[key]) {
-                key = _SPECIAL_ALIASES[key];
-            }
-
-            // if this is not a keypress event then we should
-            // be smart about using shift keys
-            // this will only work for US keyboards however
-            if (action && action != 'keypress' && _SHIFT_MAP[key]) {
-                key = _SHIFT_MAP[key];
-                modifiers.push('shift');
-            }
-
-            // if this key is a modifier then add it to the list of modifiers
-            if (_isModifier(key)) {
-                modifiers.push(key);
-            }
-        }
-
-        // depending on what the key combination is
-        // we will try to pick the best event for it
-        action = _pickBestAction(key, modifiers, action);
-
-        return {
-            key: key,
-            modifiers: modifiers,
-            action: action
-        };
-    }
-
-    /**
-     * binds a single keyboard combination
-     *
-     * @param {string} combination
-     * @param {Function} callback
-     * @param {string=} action
-     * @param {string=} sequenceName - name of sequence if part of sequence
-     * @param {number=} level - what part of the sequence the command is
-     * @returns void
-     */
-    function _bindSingle(combination, callback, action, sequenceName, level) {
-
-        // store a direct mapped reference for use with Mousetrap.trigger
-        _directMap[combination + ':' + action] = callback;
-
-        // make sure multiple spaces in a row become a single space
-        combination = combination.replace(/\s+/g, ' ');
-
-        var sequence = combination.split(' '),
-            info;
-
-        // if this pattern is a sequence of keys then run through this method
-        // to reprocess each pattern one key at a time
-        if (sequence.length > 1) {
-            _bindSequence(combination, sequence, callback, action);
-            return;
-        }
-
-        info = _getKeyInfo(combination, action);
-
-        // make sure to initialize array if this is the first time
-        // a callback is added for this key
-        _callbacks[info.key] = _callbacks[info.key] || [];
-
-        // remove an existing match if there is one
-        _getMatches(info.key, info.modifiers, {type: info.action}, sequenceName, combination, level);
-
-        // add this call back to the array
-        // if it is a sequence put it at the beginning
-        // if not put it at the end
-        //
-        // this is important because the way these are processed expects
-        // the sequence ones to come first
-        _callbacks[info.key][sequenceName ? 'unshift' : 'push']({
-            callback: callback,
-            modifiers: info.modifiers,
-            action: info.action,
-            seq: sequenceName,
-            level: level,
-            combo: combination
-        });
-    }
-
-    /**
-     * binds multiple combinations to the same callback
-     *
-     * @param {Array} combinations
-     * @param {Function} callback
-     * @param {string|undefined} action
-     * @returns void
-     */
-    function _bindMultiple(combinations, callback, action) {
-        for (var i = 0; i < combinations.length; ++i) {
-            _bindSingle(combinations[i], callback, action);
-        }
-    }
-
-    // start!
-    _addEvent(document, 'keypress', _handleKeyEvent);
-    _addEvent(document, 'keydown', _handleKeyEvent);
-    _addEvent(document, 'keyup', _handleKeyEvent);
-
-    var Mousetrap = {
-
-        /**
-         * binds an event to mousetrap
-         *
-         * can be a single key, a combination of keys separated with +,
-         * an array of keys, or a sequence of keys separated by spaces
-         *
-         * be sure to list the modifier keys first to make sure that the
-         * correct key ends up getting bound (the last key in the pattern)
-         *
-         * @param {string|Array} keys
-         * @param {Function} callback
-         * @param {string=} action - 'keypress', 'keydown', or 'keyup'
-         * @returns void
-         */
-        bind: function(keys, callback, action) {
-            keys = keys instanceof Array ? keys : [keys];
-            _bindMultiple(keys, callback, action);
-            return this;
-        },
-
-        /**
-         * unbinds an event to mousetrap
-         *
-         * the unbinding sets the callback function of the specified key combo
-         * to an empty function and deletes the corresponding key in the
-         * _directMap dict.
-         *
-         * TODO: actually remove this from the _callbacks dictionary instead
-         * of binding an empty function
-         *
-         * the keycombo+action has to be exactly the same as
-         * it was defined in the bind method
-         *
-         * @param {string|Array} keys
-         * @param {string} action
-         * @returns void
-         */
-        unbind: function(keys, action) {
-            return Mousetrap.bind(keys, function() {}, action);
-        },
-
-        /**
-         * triggers an event that has already been bound
-         *
-         * @param {string} keys
-         * @param {string=} action
-         * @returns void
-         */
-        trigger: function(keys, action) {
-            if (_directMap[keys + ':' + action]) {
-                _directMap[keys + ':' + action]({}, keys);
-            }
-            return this;
-        },
-
-        /**
-         * resets the library back to its initial state.  this is useful
-         * if you want to clear out the current keyboard shortcuts and bind
-         * new ones - for example if you switch to another page
-         *
-         * @returns void
-         */
-        reset: function() {
-            _callbacks = {};
-            _directMap = {};
-            return this;
-        },
-
-       /**
-        * should we stop this event before firing off callbacks
-        *
-        * @param {Event} e
-        * @param {Element} element
-        * @return {boolean}
-        */
-        stopCallback: function(e, element) {
-
-            // if the element has the class "mousetrap" then no need to stop
-            if ((' ' + element.className + ' ').indexOf(' mousetrap ') > -1) {
-                return false;
-            }
-
-            // stop for input, select, and textarea
-            return element.tagName == 'INPUT' || element.tagName == 'SELECT' || element.tagName == 'TEXTAREA' || element.isContentEditable;
-        },
-
-        /**
-         * exposes _handleKey publicly so it can be overwritten by extensions
-         */
-        handleKey: _handleKey
-    };
-
-    // expose mousetrap to the global object
-    window.Mousetrap = Mousetrap;
-
-    // expose mousetrap as an AMD module
-    if (typeof define === 'function' && define.amd) {
-        define(Mousetrap);
-    }
-}) (window, document);

theme/stylesheets/book/body.less

@@ -1,11 +1,16 @@
 .book {
+    position: relative;
+    width: 100%;
+    height: 100%;
+
     .book-body {
-        position: fixed;
+        position: absolute;
         top: @header-height;
         right: 0px;
         left: 0px;
         bottom: 0px;
 
+        color: @page-color;
         background: @body-background;
         .transition(left 0.5s ease);
 
@@ -23,7 +28,6 @@
             outline: none;
 
             .page-inner {
-                font-family: @font-family-serif;
                 max-width: 800px;
                 margin: 0px auto;
 
@@ -33,8 +37,6 @@
 
                     background: @page-background;
                     border-radius: 2px;
-
-                    font-size: 16px;
                     line-height: 1.5em;
                 }
 
@@ -60,7 +62,7 @@
     }
 
     &.with-summary {
-        @media (min-width: 800px) {
+        @media (min-width: @sidebar-breakpoint) {
             .book-body {
                 left: 250px;
             }
@@ -72,4 +74,63 @@
             .transition(none) !important;
         }
     }
+    &.color-theme-1{
+        .book-body {
+            color: @page-color-1;
+            background: @body-background-1;
+            .page-wrapper {
+                .page-inner {
+                    section{
+                        background: @page-background-1;
+                    }
+                }
+            }
+        }
+    }
+    &.color-theme-2{
+        .book-body {
+            color: @page-color-2;
+            background: @body-background-2;
+            .page-wrapper {
+                .page-inner {
+                    section{
+                        background: @page-background-2;
+                    }
+                }
+            }
+        }
+    }
+
+    &.font-size-0 {
+        .book-body {
+            font-size:@s-font-size;
+        }
+    }
+    &.font-size-1 {
+        .book-body {
+            font-size:@m-font-size;
+        }
+    }
+    &.font-size-2 {
+        .book-body {
+            font-size:@l-font-size;
+        }
+    }
+    &.font-size-3 {
+        .book-body {
+            font-size:@xl-font-size;
+        }
+    }
+    &.font-size-4 {
+        .book-body {
+            font-size:@xxl-font-size;
+        }
+    }
+
+    &.font-family-0{
+        font-family: @font-family-serif;
+    }
+    &.font-family-1{
+        font-family: @font-family-sans;
+    }
 }

theme/stylesheets/book/exercise.less

@@ -1,7 +1,7 @@
 .book .book-body .page-wrapper .page-inner {
     section.exercise {
         padding: 0px;
-        margin: 20px 0px;
+        margin: 20px 15px;
         border: 3px solid #2f8cde;
 
         .header {

theme/stylesheets/book/font-settings.less

@@ -0,0 +1,159 @@
+.book-header{
+	#font-settings-wrapper{
+			position:relative;
+			.dropdown-menu{
+				background-color:@header-background;
+				border-color:@sidebar-divider-color;
+				padding: 0px;
+
+				.dropdown-caret{
+					position: absolute;
+					top: 14px;
+					left: -8px;
+					width: 10px;
+					height: 18px;
+					float: left;
+					overflow: hidden;
+					.caret-outer{
+						position: absolute;
+						border-bottom: 9px solid transparent;
+						border-top: 9px solid transparent;
+						border-right: 9px solid rgba(0,0,0,0.1);
+						height: auto;
+						left: 0;
+						top: 0;
+						width: auto;
+						display: inline-block;
+						margin-left: -1px;
+					}
+					.caret-inner{
+						position: absolute;
+						display: inline-block;
+						margin-left: -1px;
+						top: 0;
+						left: 1px;
+						border-bottom: 9px solid transparent;
+						border-top: 9px solid transparent;
+						border-right: 9px solid @header-background;
+					}
+				}
+				button{
+					border: 0;
+					background-color:transparent;
+					color:@header-button-color;
+					&:hover{
+						color:@header-button-hover-color;
+						background-color:@header-button-hover-background;
+					}
+				}
+				#enlarge-font-size{
+					width: 50%;
+					font-size:1.4em;
+				}
+				#reduce-font-size{
+					width: 50.5%;
+					font-size:1em;
+				}
+				.btn-group-xs{
+					.btn{
+						width: 33.7%;
+						padding: initial;
+					}
+				}
+				.list-group{
+					margin: 0px 0;
+
+					.list-group-item{
+						cursor:pointer;
+						background-color:transparent;
+						border-color: @sidebar-divider-color;
+						border-width: 1px 0 !important;
+
+						&:hover{
+							color:@header-button-hover-color;
+							background-color:@header-button-hover-background !important;
+						}
+						&.active{
+							color:@header-button-hover-color;
+							background-color:@header-button-hover-background !important;
+						}
+					}
+				}
+				&.open{
+					display:block;
+				}
+			}
+	}
+}
+
+/*
+ * Theme 1
+ */
+
+.color-theme-1{
+	#font-settings-wrapper{
+			.dropdown-menu{
+				background-color:@sidebar-background-1;
+				border-color:@sidebar-divider-color-1;
+				.dropdown-caret .caret-inner{
+					border-right: 9px solid @sidebar-background-1;
+				}
+				button{
+					color:@header-button-color-1;
+					&:hover{
+						color:@header-button-hover-color-1;
+						background-color:@header-button-hover-background-1;
+					}
+				}
+				.list-group{
+					.list-group-item{
+						border-color:@sidebar-divider-color-1;
+						&:hover{
+							color:@header-button-hover-color-1;
+							background-color:@header-button-hover-background-1 !important;
+						}
+						&.active{
+							color:@header-button-hover-color-1;
+							background-color:@header-button-hover-background-1 !important;
+						}
+					}
+				}
+			}
+	}
+}
+
+/*
+ * Theme 2
+ */
+
+.color-theme-2{
+	#font-settings-wrapper{
+			.dropdown-menu{
+				background-color:@sidebar-background-2;
+				border-color:@sidebar-divider-color-2;
+				.dropdown-caret .caret-inner{
+					border-right: 9px solid @sidebar-background-2;
+				}
+				button{
+					color:@header-button-color-2;
+					&:hover{
+						color:@header-button-hover-color-2;
+						background-color:@header-button-hover-background-2;
+					}
+				}
+				.list-group{
+					.list-group-item{
+						border-color:@sidebar-divider-color-2;
+						&:hover{
+							color:@header-button-hover-color-2;
+							background-color:@header-button-hover-background-2 !important;
+						}
+						&.active{
+							color:@header-button-hover-color-2;
+							background-color:@header-button-hover-background-2 !important;
+						}
+					}
+				}
+			}
+	}
+}

theme/stylesheets/book/header.less

@@ -2,8 +2,8 @@
     .book-header {
         font-family: @font-family-sans;
 
-        position: fixed;
-        overflow: hidden;
+        position: absolute;
+        overflow: visible;
         top: 0px;
         right: 0px;
         left: 0px;
@@ -24,6 +24,7 @@
             text-transform: uppercase;
             line-height: @header-height;
             .box-shadow(none) !important;
+            position:relative;
 
             &:hover {
                 position: relative;
@@ -51,9 +52,23 @@
             @media (max-width: 800px) {
                 display: none;
             }
+
+            i {
+                display: none;
+            }
         }
     }
 
+    &.is-loading {
+        .book-header h1 {
+            i {
+                display: inline-block;
+            }
+            a {
+                display: none;
+            }
+        }
+    }
     &.with-summary {
         .book-header h1 {
             margin-left: 250px;
@@ -64,4 +79,30 @@
             .transition(none) !important;
         }
     }
+    &.color-theme-1{
+        .book-header{
+            color: @header-color-1;
+            background: @header-background-1;
+            .btn {
+                color: @header-button-color-1;
+                &:hover {
+                    color: @header-button-hover-color-1;
+                    background: @header-button-hover-background-1;
+                }
+            }
+        }
+    }
+    &.color-theme-2{
+        .book-header{
+            color: @header-color-2;
+            background: @header-background-2;
+            .btn {
+                color: @header-button-color-2;
+                &:hover {
+                    color: @header-button-hover-color-2;
+                    background: @header-button-hover-background-2;
+                }
+            }
+        }
+    }
 }

theme/stylesheets/book/highlight/night.less

@@ -0,0 +1,92 @@
+/* Tomorrow Night Bright Theme */
+/* Original theme - https://github.com/chriskempson/tomorrow-theme */
+/* http://jmblog.github.com/color-themes-for-google-code-highlightjs */
+
+/* Tomorrow Comment */
+.hljs-comment,
+.hljs-title {
+  color: #969896;
+}
+
+/* Tomorrow Red */
+.hljs-variable,
+.hljs-attribute,
+.hljs-tag,
+.hljs-regexp,
+.ruby .hljs-constant,
+.xml .hljs-tag .hljs-title,
+.xml .hljs-pi,
+.xml .hljs-doctype,
+.html .hljs-doctype,
+.css .hljs-id,
+.css .hljs-class,
+.css .hljs-pseudo {
+  color: #d54e53;
+}
+
+/* Tomorrow Orange */
+.hljs-number,
+.hljs-preprocessor,
+.hljs-pragma,
+.hljs-built_in,
+.hljs-literal,
+.hljs-params,
+.hljs-constant {
+  color: #e78c45;
+}
+
+/* Tomorrow Yellow */
+.ruby .hljs-class .hljs-title,
+.css .hljs-rules .hljs-attribute {
+  color: #e7c547;
+}
+
+/* Tomorrow Green */
+.hljs-string,
+.hljs-value,
+.hljs-inheritance,
+.hljs-header,
+.ruby .hljs-symbol,
+.xml .hljs-cdata {
+  color: #b9ca4a;
+}
+
+/* Tomorrow Aqua */
+.css .hljs-hexcolor {
+  color: #70c0b1;
+}
+
+/* Tomorrow Blue */
+.hljs-function,
+.python .hljs-decorator,
+.python .hljs-title,
+.ruby .hljs-function .hljs-title,
+.ruby .hljs-title .hljs-keyword,
+.perl .hljs-sub,
+.javascript .hljs-title,
+.coffeescript .hljs-title {
+  color: #7aa6da;
+}
+
+/* Tomorrow Purple */
+.hljs-keyword,
+.javascript .hljs-function {
+  color: #c397d8;
+}
+
+.hljs {
+  display: block;
+  background: black;
+  color: #eaeaea;
+  padding: 0.5em;
+}
+
+.coffeescript .javascript,
+.javascript .xml,
+.tex .hljs-formula,
+.xml .javascript,
+.xml .vbscript,
+.xml .css,
+.xml .hljs-cdata {
+  opacity: 0.5;
+}

theme/stylesheets/book/highlight/sepia.less

@@ -0,0 +1,107 @@
+/*
+
+Orginal Style from ethanschoonover.com/solarized (c) Jeremy Hull <sourdrums@gmail.com>
+
+*/
+
+.hljs {
+  display: block;
+  padding: 0.5em;
+  background: #fdf6e3;
+  color: #657b83;
+}
+
+.hljs-comment,
+.hljs-template_comment,
+.diff .hljs-header,
+.hljs-doctype,
+.hljs-pi,
+.lisp .hljs-string,
+.hljs-javadoc {
+  color: #93a1a1;
+}
+
+/* Solarized Green */
+.hljs-keyword,
+.hljs-winutils,
+.method,
+.hljs-addition,
+.css .hljs-tag,
+.hljs-request,
+.hljs-status,
+.nginx .hljs-title {
+  color: #859900;
+}
+
+/* Solarized Cyan */
+.hljs-number,
+.hljs-command,
+.hljs-string,
+.hljs-tag .hljs-value,
+.hljs-rules .hljs-value,
+.hljs-phpdoc,
+.tex .hljs-formula,
+.hljs-regexp,
+.hljs-hexcolor,
+.hljs-link_url {
+  color: #2aa198;
+}
+
+/* Solarized Blue */
+.hljs-title,
+.hljs-localvars,
+.hljs-chunk,
+.hljs-decorator,
+.hljs-built_in,
+.hljs-identifier,
+.vhdl .hljs-literal,
+.hljs-id,
+.css .hljs-function {
+  color: #268bd2;
+}
+
+/* Solarized Yellow */
+.hljs-attribute,
+.hljs-variable,
+.lisp .hljs-body,
+.smalltalk .hljs-number,
+.hljs-constant,
+.hljs-class .hljs-title,
+.hljs-parent,
+.haskell .hljs-type,
+.hljs-link_reference {
+  color: #b58900;
+}
+
+/* Solarized Orange */
+.hljs-preprocessor,
+.hljs-preprocessor .hljs-keyword,
+.hljs-pragma,
+.hljs-shebang,
+.hljs-symbol,
+.hljs-symbol .hljs-string,
+.diff .hljs-change,
+.hljs-special,
+.hljs-attr_selector,
+.hljs-subst,
+.hljs-cdata,
+.clojure .hljs-title,
+.css .hljs-pseudo,
+.hljs-header {
+  color: #cb4b16;
+}
+
+/* Solarized Red */
+.hljs-deletion,
+.hljs-important {
+  color: #dc322f;
+}
+
+/* Solarized Violet */
+.hljs-link_label {
+  color: #6c71c4;
+}
+
+.tex .hljs-formula {
+  background: #eee8d5;
+}

theme/stylesheets/book/highlight/white.less

@@ -1,8 +1,9 @@
 /* http://jmblog.github.com/color-themes-for-google-code-highlightjs */
 
 /* Tomorrow Comment */
-.hljs-comment {
-  color: hsl(207, 35%, 35%);
+.hljs-comment,
+.hljs-title {
+  color: #8e908c;
 }
 
 /* Tomorrow Red */
@@ -27,9 +28,9 @@
 .hljs-pragma,
 .hljs-built_in,
 .hljs-literal,
-.hljs-constant,
-.hljs-function .hljs-title {
-  color: hsl(50, 100%, 60%);
+.hljs-params,
+.hljs-constant {
+  color: #f5871f;
 }
 
 /* Tomorrow Yellow */
@@ -45,7 +46,7 @@
 .hljs-header,
 .ruby .hljs-symbol,
 .xml .hljs-cdata {
-  color: hsl(0, 100%, 70%);
+  color: #718c00;
 }
 
 /* Tomorrow Aqua */
@@ -54,7 +55,7 @@
 }
 
 /* Tomorrow Blue */
-.hljs-function .keyword,
+.hljs-function,
 .python .hljs-decorator,
 .python .hljs-title,
 .ruby .hljs-function .hljs-title,
@@ -62,13 +63,13 @@
 .perl .hljs-sub,
 .javascript .hljs-title,
 .coffeescript .hljs-title {
-  color: hsl(207, 70%, 60%);
+  color: #4271ae;
 }
 
 /* Tomorrow Purple */
 .hljs-keyword,
 .javascript .hljs-function {
-  color: hsl(207, 95%, 70%);
+  color: #8959a8;
 }
 
 .hljs {
@@ -76,7 +77,6 @@
   background: white;
   color: #4d4d4c;
   padding: 0.5em;
-  font-family: "Anonymous Pro", "Inconsolata", "Monaco", monospace;
 }
 
 .coffeescript .javascript,

theme/stylesheets/book/markdown.less

@@ -1,8 +1,30 @@
-.book .book-body .page-wrapper .page-inner section.normal {
-    padding: 25px;
-    padding-top: 15px;
-    background-color: white;
+.book.color-theme-1 .book-body .page-wrapper .page-inner section.normal {
+    color:@page-color-1;
 
+    pre, code {
+        background: #fdf6e3;
+        color: #657b83;
+        border-color: darken(#fdf6e3, 15%);
+
+        @import "./highlight/sepia.less";
+    }
+}
+.book.color-theme-2 .book-body .page-wrapper .page-inner section.normal {
+    color:@page-color-2;
+
+    pre, code {
+        background: black;
+        color: #eaeaea;
+        border-color: #000;
+
+        @import "./highlight/night.less";
+    }
+}
+.book .book-body .page-wrapper .page-inner section.normal {
+    padding-bottom: 25px;
+    padding-top: 15px;
+    color:@page-color;
+    letter-spacing: 0.01rem;
 
     & > *:first-child {
         margin-top: 0 !important; }
@@ -51,26 +73,25 @@
         font-size: inherit; }
 
     h1 {
-        font-size: 28px;
-        color: black; }
+        font-size: 2.5em;
+    }
 
     h2 {
-        font-size: 24px;
+        font-size: 2em;
         border-bottom: 1px solid #eee;
-        color: black; }
+    }
 
     h3 {
-        font-size: 18px; }
+        font-size: 1.5em; }
 
     h4 {
-        font-size: 16px; }
+        font-size: 1.2em; }
 
     h5 {
-        font-size: 14px; }
+        font-size: 1em; }
 
     h6 {
-        color: #777777;
-        font-size: 14px; }
+        font-size: 1em; }
 
     p, blockquote, ul, ol, dl, table, pre {
         margin: 15px 0; }
@@ -272,29 +293,15 @@
         white-space: pre;
         border: none;
         background: transparent;
-    }
 
-    .highlight pre {
-        color: hsl(204, 40%, 80%);
-        background-color: hsl(204, 30%, 10%);
-        border: 1px solid hsl(204, 30%, 10%);
-        font-size: 16px;
-        line-height: 1.5em;
-        overflow: auto;
-        padding: 20px;
-        margin: 0 -20px;
-        border-radius: 3px;
+        @import "./highlight/white.less";
     }
 
     pre {
-        color: hsl(204, 40%, 80%);
-        background-color: hsl(204, 30%, 10%);
-        border: 1px solid hsl(204, 30%, 10%);
-        font-size: 16px;
+        font-size: inherit;
         line-height: 1.5em;
         overflow: auto;
         padding: 20px;
-        margin: 0 -20px;
         border-radius: 3px;
     }
 

theme/stylesheets/book/navigation.less

@@ -13,15 +13,15 @@
         flex-direction: column;
 
         font-size: 40px;
-        color: rgba(0,0,0,0.5);
+        color: rgba(0,0,0,0.4);
 
         text-align: center;
 
         .transition(all 350ms ease);
 
         &:hover {
-            background-color: @body-pagination-background;
             text-decoration: none;
+            color: rgba(0,0,0,0.6);
         }
 
         &.navigation-next {
@@ -40,6 +40,19 @@
             width: 50%;
             display: inline-block;
             float: left;
+
+            &.navigation-unique {
+                max-width: 100%;
+                width: 100%;
+            }
         }
     }
+}
+.book.color-theme-1 .book-body  {
+    .navigation:hover{
+    }
+}
+.book.color-theme-2 .book-body  {
+    .navigation:hover{
+    }
 }

theme/stylesheets/book/progress.less

@@ -16,8 +16,7 @@
         width: 100%;
         position: relative;
         background: #fff;
-        margin-bottom: 20px;
-        z-index: 10;
+        margin-bottom: 10px;
 
         .bar {
             height: @bar-height;
@@ -81,4 +80,36 @@
             }
         }
     }
+}
+.book.color-theme-1 .book-body {
+    .book-progress {
+        .bar {
+            background: @bar-background-1;
+            .inner {
+                background: @bar-progress-background-1;
+            }
+        }
+    }
+    .chapters .chapter{
+        background: @bar-background-1;
+        &.done{
+            background: @bar-progress-background-1;
+        }
+    }
+}
+.book.color-theme-2 .book-body {
+    .book-progress {
+        .bar {
+            background: @bar-background-2;
+            .inner {
+                background: @bar-progress-background-2;
+            }
+        }
+    }
+    .chapters .chapter{
+        background: @bar-background-2;
+        &.done{
+            background: @bar-progress-background-2;
+        }
+    }
 }

theme/stylesheets/book/quiz.less

@@ -1,7 +1,7 @@
 .book .book-body .page-wrapper .page-inner {
     section.quiz {
         padding: 0px;
-        margin: 20px 0px;
+        margin: 20px 15px;
         border: 3px solid #2f8cde;
 
         .header {
@@ -29,8 +29,12 @@
 
             .question-inner {
                 padding: 15px;
+                .quiz-label {
+                    font-weight: normal;
+                    cursor: pointer;
+                }
             }
-            
+
             table {
                 margin-bottom: 10px;
                 width: 100%;
@@ -46,4 +50,4 @@
             }
         }
     }
-}
+}

theme/stylesheets/book/summary.less

@@ -2,7 +2,7 @@
     .book-summary {
         font-family: @font-family-sans;
 
-        position: fixed;
+        position: absolute;
         top: @header-height;
         left: -@sidebar-width;
         bottom: 0px;
@@ -90,7 +90,6 @@
                     overflow: hidden;
                     white-space: nowrap;
                     position: relative;
-                    padding-left: 25px;
                 }
 
                 span {
@@ -110,7 +109,7 @@
             }
         }
 
-        @media (max-width: 600px) {
+        @media (max-width: @sidebar-breakpoint) {
             width: 100%;
             bottom: 0px;
             left: -100%;
@@ -141,3 +140,93 @@
         }
     }
 }
+
+/*
+ * Theme 1
+ */
+.book.color-theme-1 {
+    .book-summary {
+        color: @sidebar-color-1;
+        background: @sidebar-background-1;
+
+        .book-search {
+            background: @sidebar-search-background-1;
+
+            input, input:focus {
+                border: 1px solid @sidebar-search-input-border-color-1;
+            }
+        }
+
+        ul.summary {
+            li {
+                &.divider {
+                    background: @sidebar-divider-color-1;
+                    box-shadow: none;
+                }
+
+                i.fa-check {
+                    color: @sidebar-icon-color-1;
+                }
+
+                &.done > a {
+                        color: @sidebar-link-completed-1;
+                }
+
+                a, span {
+                    color: @sidebar-link-color-1;
+                    background: @sidebar-link-background-1;
+                }
+
+                &.active > a, a:hover {
+                    color: @sidebar-link-hover-color-1;
+                    background: @sidebar-link-hover-background-1;
+                }
+            }
+        }
+    }
+}
+
+/*
+ * Theme 2
+ */
+.book.color-theme-2{
+    .book-summary {
+        color: @sidebar-color-2;
+        background: @sidebar-background-2;
+
+        .book-search {
+            background: @sidebar-search-background-2;
+
+            input, input:focus {
+                border: 1px solid @sidebar-search-input-border-color-2;
+            }
+        }
+
+        ul.summary {
+            li {
+                &.divider {
+                    background: @sidebar-divider-color-2;
+                    box-shadow: none;
+                }
+
+                i.fa-check {
+                    color: @sidebar-icon-color-2;
+                }
+
+                &.done > a {
+                        color: @sidebar-link-completed-2;
+                }
+
+                a, span {
+                    color: @sidebar-link-color-2;
+                    background: @sidebar-link-background-2;
+                }
+
+                &.active > a, a:hover {
+                    color: @sidebar-link-hover-color-2;
+                    background: @sidebar-link-hover-background-2;
+                }
+            }
+        }
+    }
+}

theme/stylesheets/main.less

@@ -5,10 +5,10 @@
 @import "variables.less";
 @import "fonts.less";
 
-@import "book/highlight.less";
 @import "book/languages.less";
 @import "book/header.less";
 @import "book/summary.less";
+@import "book/font-settings.less";
 @import "book/body.less";
 @import "book/exercise.less";
 @import "book/quiz.less";

theme/stylesheets/page/highlight.less

@@ -1,4 +1,4 @@
-/* http://jmblog.github.com/color-themes-for-google-code-highlightjs */
+/* http://jmblog.github.io/color-themes-for-highlightjs */
 
 /* Tomorrow Comment */
 .hljs-comment,
@@ -87,4 +87,4 @@
 .xml .css,
 .xml .hljs-cdata {
   opacity: 0.5;
-}
+}

theme/stylesheets/variables.less

@@ -13,14 +13,14 @@
 
 // Body
 @body-background:                     white;
-@body-pagination-background:          hsl(207, 15%, 95%);
 
 // Sidebar
 @sidebar-width:                       250px;
+@sidebar-breakpoint:                  600px;
 @sidebar-color:                       hsl(207, 15%, 80%);
 @sidebar-background:                  hsl(207, 15%, 95%);
 
-@sidebar-nested-padding:              10px;
+@sidebar-nested-padding:              20px;
 
 @sidebar-search-padding:              6px;
 @sidebar-search-background:           transparent;
@@ -38,6 +38,7 @@
 @sidebar-link-completed-weight:       normal;
 
 // Page
+@page-color:                     			black;
 @page-background:                     white;
 
 // Progress Bar
@@ -79,5 +80,92 @@
 @font-family-sans:                    "Open Sans", "Clear Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
 @font-family-base:                    @font-family-serif;
 
+
 @FontPath:                            '@{staticPath}/fonts';
 @fa-font-path:                        "@{FontPath}/fontawesome";
+
+@s-font-size:													1.2rem;
+@m-font-size:													1.4rem;
+@l-font-size:													1.6rem;
+@xl-font-size:												2.2rem;
+@xxl-font-size:												4.0rem;
+
+/*
+,--------.,--.
+'--.  .--'|  ,---.  ,---. ,--,--,--. ,---.  ,---. .--.
+   |  |   |  .-.  || .-. :|        || .-. :(  .-' '--'
+   |  |   |  | |  |\   --.|  |  |  |\   --..-'  `).--.
+   `--'   `--' `--' `----'`--`--`--' `----'`----' '--'
+*/
+// Header
+@header-color-1:                        #AFA790;
+@header-color-2:                        #7e888b;
+@header-background-1:                   #ECE3C4;
+@header-background-2:                   #1d1f21;
+@header-button-color-1:                 #AFA790;
+@header-button-color-2:                 #7e888b;
+@header-button-hover-color-1:           #73553C;
+@header-button-hover-color-2:           #C9C9C9;
+@header-button-hover-background-1:      #E2DABE;
+@header-button-hover-background-2:      #0B0D0E;
+
+// Body
+@body-background-1:                     #F3EACB;
+@body-background-2:                     #1d1f21;
+
+// Sidebar
+@sidebar-color-1:                       #AFA790;
+@sidebar-color-2:                       hsl(207, 15%, 80%);
+@sidebar-background-1:                  #F3EACB;
+@sidebar-background-2:                  #111111;
+
+@sidebar-search-background-1:           transparent;
+@sidebar-search-background-2:           transparent;
+@sidebar-search-input-border-color-1:   #D6CFBA;
+@sidebar-search-input-border-color-2:   #c4cdd4;
+
+@sidebar-divider-color-1:               hsl(207, 15%, 85%);
+@sidebar-divider-color-2:               #1d1f21;
+
+@sidebar-link-color-1:                  #877F6A;
+@sidebar-link-color-2:                  hsl(207, 15%, 50%);
+@sidebar-link-background-1:             transparent;
+@sidebar-link-background-2:             transparent;
+@sidebar-link-hover-color-1:            #704214;
+@sidebar-link-hover-color-2:            hsl(207, 100%, 50%);
+@sidebar-link-hover-background-1:       transparent;
+@sidebar-link-hover-background-2:       transparent;
+
+@sidebar-icon-color-1:                  @bar-progress-background;
+@sidebar-icon-color-2:                  @bar-progress-background;
+@sidebar-link-completed-1:              hsl(207, 15%, 25%);
+@sidebar-link-completed-2:              hsl(207, 15%, 25%);
+@sidebar-link-completed-weight-1:       normal;
+@sidebar-link-completed-weight-2:       normal;
+
+// Page
+@page-color-1:                     			#704214;
+@page-color-2:                     			#a4b1b1;
+@page-background-1:                     #F3EACB;
+@page-background-2:                     #1d1f21;
+
+@bar-background-1:                      #F3EACB;
+@bar-background-2:                      #1d1f21;
+@bar-progress-background-1:             #704214;
+@bar-progress-background-2:             hsl(120, 60%, 50%);
+
+// Basics of a navbar
+@navbar-default-border-1:               #d5d5d5;
+@navbar-default-border-2:               #d5d5d5;
+
+// Navbar brand label
+@navbar-default-color-1:                #333;
+@navbar-default-color-2:                #333;
+@navbar-default-link-color-1:           #333;
+@navbar-default-link-color-2:           #333;
+@navbar-default-brand-color-1:          @navbar-default-link-color;
+@navbar-default-brand-color-2:          @navbar-default-link-color;
+@navbar-default-brand-hover-color-1:    @navbar-default-link-color;
+@navbar-default-brand-hover-color-2:    @navbar-default-link-color;
+@navbar-default-brand-hover-bg-1:       transparent;
+@navbar-default-brand-hover-bg-2:       transparent;

theme/templates/includes/book/font-settings.html

@@ -0,0 +1,22 @@
+<div class="dropdown-menu font-settings">
+    <div class="dropdown-caret">
+        <span class="caret-outer"></span>
+        <span class="caret-inner"></span>
+    </div>
+
+    <div class="btn-group btn-block">
+        <button id="reduce-font-size" class="btn btn-default">A</button>
+        <button id="enlarge-font-size" class="btn btn-default">A</button>
+    </div>
+
+    <ul class="list-group font-family-list">
+        <li class="list-group-item" data-font="0">Serif</li>
+        <li class="list-group-item" data-font="1">Sans</li>
+    </ul>
+
+    <div class="btn-group btn-group-xs btn-block color-theme-list">
+        <button type="button" class="btn btn-default" id="color-theme-preview-0" data-theme="0">White</button>
+        <button type="button" class="btn btn-default" id="color-theme-preview-1" data-theme="1">Sepia</button>
+        <button type="button" class="btn btn-default" id="color-theme-preview-2" data-theme="2">Night</button>
+    </div>
+</div>

theme/templates/includes/book/header.html

@@ -1,21 +1,35 @@
 <div class="book-header">
     <!-- Actions Left -->
-    {% if githubId %}
-    <a href="{{ githubHost }}{{ githubId }}" target="_blank" class="btn pull-left"><i class="fa fa-github-alt"></i></a>
+    <a href="#" class="btn pull-left toggle-summary" aria-label="Toggle summary"><i class="fa fa-align-justify"></i></a>
+    {% if options.links.home !== false and (options.links.home != null or githubId) %}
+    <a href="{{ options.links.home|default(githubHost+githubId) }}" target="_blank" class="btn pull-left home-bookmark" aria-label="GitHub home"><i class="fa fa-bookmark-o"></i></a>
     {% endif %}
-    <a href="#" class="btn pull-left toggle-summary"><i class="fa fa-align-justify"></i></a>
-    <a href="#" class="btn pull-left toggle-search"><i class="fa fa-search"></i></a>
+    <a href="#" class="btn pull-left toggle-search" aria-label="Toggle search"><i class="fa fa-search"></i></a>
+    <span id="font-settings-wrapper">
+        <a href="#" class="btn pull-left toggle-font-settings" aria-label="Toggle font settings"><i class="fa fa-font"></i>
+        </a>
+        {% include "./font-settings.html" %}
+    </span>
 
     <!-- Actions Right -->
-    <a href="#" target="_blank" class="btn pull-right" data-sharing="google-plus"><i class="fa fa-google-plus"></i></a>
-    <a href="#" target="_blank" class="btn pull-right" data-sharing="facebook"><i class="fa fa-facebook"></i></a>
-    <a href="#" target="_blank" class="btn pull-right" data-sharing="twitter"><i class="fa fa-twitter"></i></a>
+    {% if options.links.sharing.google !== false %}
+    <a href="#" target="_blank" class="btn pull-right google-plus-sharing-link sharing-link" data-sharing="google-plus" aria-label="Share on Google Plus"><i class="fa fa-google-plus"></i></a>
+    {% endif %}
+    {% if options.links.sharing.facebook !== false %}
+    <a href="#" target="_blank" class="btn pull-right facebook-sharing-link sharing-link" data-sharing="facebook" aria-label="Share on Facebook"><i class="fa fa-facebook"></i></a>
+    {% endif %}
+    {% if options.links.sharing.twitter !== false %}
+    <a href="#" target="_blank" class="btn pull-right twitter-sharing-link sharing-link" data-sharing="twitter" aria-label="Share on Twitter"><i class="fa fa-twitter"></i></a>
+    {% endif %}
 
     {% if githubId %}
-    <a href="{{ githubHost }}{{ githubId }}/stargazers" target="_blank" class="btn pull-right count-star"><i class="fa fa-star-o"></i> Star (<span>-</span>)</a>
-    <a href="{{ githubHost }}{{ githubId }}/watchers" target="_blank" class="btn pull-right count-watch"><i class="fa fa-eye"></i> Watch (<span>-</span>)</a>
+    <a href="{{ githubHost }}{{ githubId }}/stargazers" target="_blank" class="btn pull-right count-star hidden-xs"><i class="fa fa-star-o"></i> Star (<span>-</span>)</a>
+    <a href="{{ githubHost }}{{ githubId }}/watchers" target="_blank" class="btn pull-right count-watch hidden-xs"><i class="fa fa-eye"></i> Watch (<span>-</span>)</a>
     {% endif %}
 
     <!-- Title -->
-    <h1><a href="{{ basePath }}/" >{{ title }}</a></h1>
+    <h1>
+        <i class="fa fa-spinner fa-spin"></i>
+        <a href="{{ basePath }}/" >{{ title }}</a>
+    </h1>
 </div>

theme/templates/includes/book/summary.html

@@ -1,48 +1,63 @@
+{% macro articles(_articles) %}
+    {% for item in _articles %}
+        <li class="chapter {% if item._path == _input %}active{% endif %}" data-level="{{ item.level }}" {% if item.path %}data-path="{{ item.path|mdLink }}"{% endif %}>
+            {% if item.path %}
+            <a href="{{ basePath }}/{{ item.path|mdLink }}">
+                <i class="fa fa-check"></i> <b>{{ item.level }}.</b> {{ item.title }}
+            </a>
+            {% else %}
+            <span><b>{{ item.level }}.</b> {{ item.title }}</span>
+            {% endif %}
+            {% if item.articles.length > 0 %}
+            <ul class="articles">
+                {{ articles(item.articles) }}
+            </ul>
+            {% endif %}
+        </li>
+    {% endfor %}
+{% endmacro %}
+
 <div class="book-summary">
     <div class="book-search">
         <input type="text" placeholder="Search" class="form-control" />
     </div>
     <ul class="summary">
-        {% if githubId %}
+        {% set _divider = false %}
+        {% if options.links.about !== false && (options.links.about || githubId) %}
+        {% set _divider = true %}
         <li>
-            <a href="{{ githubHost }}{{ githubAuthor }}" target="blank">About the author</a>
+            <a href="{{ options.links.about|default(githubHost+githubAuthor) }}" target="blank" class="author-link">About the author</a>
         </li>
+        {% endif %}
+
+        {% if options.links.issues !== false && (options.links.issues || githubId) %}
+        {% set _divider = true %}
         <li>
-            <a href="{{ githubHost }}{{ githubId }}/issues" target="blank">Questions and Issues</a>
+            <a href="{{ options.links.issues|default(githubHost+githubId+"/issues") }}" target="blank"class="issues-link">Questions and Issues</a>
         </li>
+        {% endif %}
+
+        {% if options.links.contribute !== false && (options.links.contribute || githubId) %}
+        {% set _divider = true %}
         <li>
-            <a href="{{ githubHost }}{{ githubId }}/edit/master/{{ _input }}" target="blank">Edit and Contribute</a>
+            <a href="{{ options.links.contribute|default(githubHost+githubId+"/edit/master/"+_input) }}" target="blank" class="contribute-link">Edit and Contribute</a>
         </li>
+        {% endif %}
+
+        {% if _divider %}
         <li class="divider"></li>
         {% endif %}
+
         <li data-level="0" data-path="index.html">
             <a href="{{ basePath }}/"><i class="fa fa-check"></i> Introduction</a>
         </li>
-        {% for item in summary.chapters %}
-            <li {% if item._path == _input %}class="active"{% endif %} data-level="{{ item.level }}" {% if item.path %}data-path="{{ item.path|mdLink }}"{% endif %}>
-                {% if item.path %}
-                <a href="{{ basePath }}/{{ item.path|mdLink }}">
-                    <i class="fa fa-check"></i> <b>{{ item.level }}.</b> {{ item.title }}
-                </a>
-                {% else %}
-                <span><b>{{ item.level }}.</b> {{ item.title }}</span>
-                {% endif %}
-                {% if item.articles.length > 0 %}
-                <ul class="articles">
-                    {% for article in item.articles %}
-                        <li {% if article._path == _input %}class="active"{% endif %} data-level="{{ article.level }}" {% if article.path %}data-path="{{ article.path|mdLink }}"{% endif %}>
-                            {% if article.path %}
-                            <a href="{{ basePath }}/{{ article.path|mdLink }}">
-                                <i class="fa fa-check"></i> <b>{{ article.level }}.</b> {{ article.title }}
-                            </a>
-                            {% else %}
-                            <span><b>{{ article.level }}.</b> {{ article.title }}</span>
-                            {% endif %}
-                        </li>
-                    {% endfor %}
-                </ul>
-                {% endif %}
-            </li>
-        {% endfor %}
+        {{ articles(summary.chapters) }}
+
+        {% if options.links.gitbook !== false %}
+        <li class="divider"></li>
+        <li>
+            <a href="http://www.gitbook.io/" target="blank" class="gitbook-link">Generated using GitBook</a>
+        </li>
+        {% endif %}
     </ul>
 </div>

theme/templates/layout.html

@@ -1,6 +1,8 @@
 <!DOCTYPE HTML>
-<html lang="en-US">
+<html lang="en-US" {% block htmlTag %}{% endblock %}>
+    {{ htmlSnippet("html:start")|default("") }}
     <head prefix="og: http://ogp.me/ns# book: http://ogp.me/ns/book#">
+        {{ htmlSnippet("head:start")|default("") }}
         {% block head %}
         <meta charset="UTF-8">
         <title>{% block title %} | {{ title }}{% endblock %}</title>
@@ -33,20 +35,21 @@
 
         <link rel="shortcut icon" href="{{ staticBase }}/images/favicon.ico" type="image/x-icon">
         {% endblock %}
+        {{ htmlSnippet("head:end")|default("") }}
     </head>
     <body>
+        {{ htmlSnippet("body:start")|default("") }}
         {% block style %}
         <link rel="stylesheet" href="{{ staticBase }}/style.css">
         {% endblock %}
         {% block content %}{% endblock %}
         {% block javascript %}
-        <script type="text/javascript">(function(e,b){if(!b.__SV){var a,f,i,g;window.mixpanel=b;b._i=[];b.init=function(a,e,d){function f(b,h){var a=h.split(".");2==a.length&&(b=b[a[0]],h=a[1]);b[h]=function(){b.push([h].concat(Array.prototype.slice.call(arguments,0)))}}var c=b;"undefined"!==typeof d?c=b[d]=[]:d="mixpanel";c.people=c.people||[];c.toString=function(b){var a="mixpanel";"mixpanel"!==d&&(a+="."+d);b||(a+=" (stub)");return a};c.people.toString=function(){return c.toString(1)+".people (stub)"};i="disable track track_pageview track_links track_forms register register_once alias unregister identify name_tag set_config people.set people.set_once people.increment people.append people.track_charge people.clear_charges people.delete_user".split(" ");
-for(g=0;g<i.length;g++)f(c,i[g]);b._i.push([a,e,d])};b.__SV=1.2;a=e.createElement("script");a.type="text/javascript";a.async=!0;a.src=("https:"===e.location.protocol?"https:":"http:")+'//cdn.mxpnl.com/libs/mixpanel-2.2.min.js';f=e.getElementsByTagName("script")[0];f.parentNode.insertBefore(a,f)}})(document,window.mixpanel||[]);
-        </script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.1.3/ace.js"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.1.3/mode-javascript.js"></script>
         <script src="{{ staticBase }}/jsrepl/jsrepl.js" id="jsrepl-script"></script>
         <script src="{{ staticBase }}/app.js"></script>
         {% endblock %}
+        {{ htmlSnippet("body:end")|default("") }}
     </body>
+    {{ htmlSnippet("html:end")|default("") }}
 </html>

theme/templates/page.html

@@ -77,9 +77,11 @@
                 <h1>{{ item.title }}</h1>
             </article>
 
+            {% if pages[item.path] %}
             <article>
             {{ articleContent(pages[item.path].content) }}
             </article>
+            {% endif %}
 
             {% if item.articles.length > 0 %}
                 {% for article in item.articles %}

theme/templates/site.html

@@ -1,5 +1,6 @@
 {% extends "layout.html" %}
 
+{% block htmlTag %}{% if options.cache !== false %}manifest="{{ basePath }}/manifest.appcache"{% endif %}{% endblock %}
 {% block title %}{{ progress.current.title }}{% parent %}{% endblock %}
 {% block content %}
     <div class="book" {% if githubId %}data-github="{{ githubId }}"{% endif %} data-level="{{ progress.current.level }}" data-basepath="{{ basePath }}" data-revision="{{ revision }}">
@@ -27,11 +28,39 @@
         </div>
 
         {% if progress.current.prev and progress.current.prev.path %}
-        <a href="{{ basePath }}/{{ progress.current.prev.path|mdLink }}" class="navigation navigation-prev"><i class="fa fa-angle-left"></i></a>
+        <a href="{{ basePath }}/{{ progress.current.prev.path|mdLink }}" class="navigation navigation-prev {% if !progress.current.next or !progress.current.next.path %}navigation-unique{% endif %}" aria-label="Previous page: {{ progress.current.prev.title }}"><i class="fa fa-angle-left"></i></a>
         {% endif %}
         {% if progress.current.next and progress.current.next.path %}
-        <a href="{{ basePath }}/{{ progress.current.next.path|mdLink }}" class="navigation navigation-next"><i class="fa fa-angle-right"></i></a>
+        <a href="{{ basePath }}/{{ progress.current.next.path|mdLink }}" class="navigation navigation-next {% if !progress.current.prev or !progress.current.prev.path %}navigation-unique{% endif %}" aria-label="Next page: {{ progress.current.next.title }}"><i class="fa fa-angle-right"></i></a>
         {% endif %}
     </div>
 </div>
 {% endblock %}
+
+{% block javascript %}
+{% parent %}
+{% for resource in plugins.resources.js %}
+    {% if resource.url %}
+    <script src="{{ resource.url }}"></script>
+    {% else %}
+    <script src="{{ staticBase }}/plugins/{{ resource.path }}"></script>
+    {% endif %}
+{% endfor %}
+<script>
+require(["gitbook"], function(gitbook) {
+    var config = {% autoescape false %}{{ pluginsConfig }}{% endautoescape %};
+    gitbook.start(config);
+});
+</script>
+{% endblock %}
+
+{% block style %}
+{% parent %}
+{% for resource in plugins.resources.css %}
+    {% if resource.url %}
+    <link rel="stylesheet" href="{{ resource.url }}">
+    {% else %}
+    <link rel="stylesheet" href="{{ staticBase }}/plugins/{{ resource.path }}">
+    {% endif %}
+{% endfor %}
+{% endblock %}