Implement dark theme

Closes #73.

assets/javascripts/app/settings.coffee

@@ -1,6 +1,7 @@
 class app.Settings
   SETTINGS_KEY = 'settings'
   DOCS_KEY = 'docs'
+  DARK_KEY = 'dark'
 
   @defaults: ->
     count: 0
@@ -45,13 +46,21 @@ class app.Settings
 
   setDocs: (docs) ->
     try
-      Cookies.set DOCS_KEY, docs.join('/'),
-        path: '/'
-        expires: 1e8
+      Cookies.set DOCS_KEY, docs.join('/'), path: '/', expires: 1e8
+    catch
+    return
+
+  setDark: (value) ->
+    try
+      if value
+        Cookies.set DARK_KEY, '1', path: '/', expires: 1e8
+      else
+        Cookies.expire DARK_KEY
     catch
     return
 
   reset: ->
     try Cookies.expire DOCS_KEY
+    try Cookies.expire DARK_KEY
     try @store.del(SETTINGS_KEY)
     return

assets/javascripts/news.json

@@ -1,5 +1,8 @@
 [
-  [ "2015-01-13",
+  [ "2015-02-08",
+    "New dark theme\nClick the icon in the bottom left corner to activate.\n<a href=\"https://github.com/Thibaut/devdocs/issues\" target=\"_blank\">Feedback</a> welcome :)"
+  ], [
+    "2015-01-13",
     "<a href=\"/offline\">Offline mode</a> has landed!\nIf you notice any bugs, please report them on <a href=\"https://github.com/Thibaut/devdocs/issues\" target=\"_blank\">GitHub</a>."
   ], [
     "2014-12-21",

assets/javascripts/templates/sidebar_tmpl.coffee

@@ -51,7 +51,10 @@ templates.sidebarPickerNote = """
 sidebarFooter = (html) -> """<div class="_sidebar-footer">#{html}</div>"""
 
 templates.sidebarSettings = ->
-  sidebarFooter """<a class="_sidebar-footer-link _sidebar-footer-edit" data-pick-docs>Select documentation</a>"""
+  sidebarFooter """
+    <a class="_sidebar-footer-link _sidebar-footer-light" title="Toggle light" data-light></a>
+    <a class="_sidebar-footer-link _sidebar-footer-edit" data-pick-docs>Select documentation</a>
+  """
 
 templates.sidebarSave = ->
   sidebarFooter """<a class="_sidebar-footer-link _sidebar-footer-save">Save</a>"""

assets/javascripts/views/layout/document.coffee

@@ -17,6 +17,14 @@ class app.views.Document extends app.View
     @activate()
     return
 
+  toggleLight: ->
+    css = $('link[rel="stylesheet"][data-alt]')
+    alt = css.getAttribute('data-alt')
+    css.setAttribute('data-alt', css.getAttribute('href'))
+    css.setAttribute('href', alt)
+    app.settings.setDark(alt.indexOf('dark') > 0)
+    return
+
   setTitle: (title) ->
     @el.title = if title then "DevDocs/#{title}" else 'DevDocs'
 

assets/javascripts/views/sidebar/sidebar.coffee

@@ -79,6 +79,9 @@ class app.views.Sidebar extends app.View
     if event.target.hasAttribute? 'data-reset-list'
       $.stopEvent(event)
       @reset()
+    else if event.target.hasAttribute? 'data-light'
+      $.stopEvent(event)
+      app.document.toggleLight()
     return
 
   onGlobalClick: (event) =>

assets/stylesheets/application-dark.css.scss

@@ -0,0 +1,72 @@
+//= depend_on icons.png
+//= depend_on icons@2x.png
+
+//= require vendor/open-sans
+
+/*!
+ * Copyright 2013-2015 Thibaut Courouble and other contributors
+ *
+ * This source code is licensed under the terms of the Mozilla
+ * Public License, v. 2.0, a copy of which may be obtained at:
+ * http://mozilla.org/MPL/2.0/
+ */
+
+@import 'global/variables-dark',
+        'global/icons',
+        'global/classes',
+        'global/base';
+
+@import 'components/app',
+        'components/header',
+        'components/notif',
+        'components/sidebar',
+        'components/content',
+        'components/page',
+        'components/fail',
+        'components/notice',
+        'components/path',
+        'components/prism',
+        'components/mobile';
+
+@import 'pages/angular',
+        'pages/bower',
+        'pages/c',
+        'pages/chai',
+        'pages/coffeescript',
+        'pages/cordova',
+        'pages/d3',
+        'pages/ember',
+        'pages/express',
+        'pages/go',
+        'pages/haskell',
+        'pages/jquery',
+        'pages/knockout',
+        'pages/git',
+        'pages/grunt',
+        'pages/laravel',
+        'pages/less',
+        'pages/lodash',
+        'pages/marionette',
+        'pages/markdown',
+        'pages/maxcdn',
+        'pages/mdn',
+        'pages/modernizr',
+        'pages/moment',
+        'pages/mongoose',
+        'pages/nginx',
+        'pages/node',
+        'pages/php',
+        'pages/phpunit',
+        'pages/postgres',
+        'pages/rdoc',
+        'pages/react',
+        'pages/redis',
+        'pages/requirejs',
+        'pages/rethinkdb',
+        'pages/rfc',
+        'pages/sinon',
+        'pages/socketio',
+        'pages/sphinx',
+        'pages/underscore',
+        'pages/yard',
+        'pages/yii';

assets/stylesheets/components/_content.scss

@@ -425,6 +425,11 @@
 ._splash-sponsor > ._maxcdn-logo {
   background-image: image-url('maxcdn-bw.png');
 
+  @if $style == 'dark' {
+    filter: invert(100%);
+    -webkit-filter: invert(100%);
+  }
+
   @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
     background-image: image-url('maxcdn-bw@2x.png');
   }
@@ -443,6 +448,11 @@
 ._splash-sponsor > ._shopify-logo {
   background-image: image-url('shopify-bw.png');
 
+  @if $style == 'dark' {
+    filter: invert(100%);
+    -webkit-filter: invert(100%);
+  }
+
   @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
     background-image: image-url('shopify-bw@2x.png');
   }

assets/stylesheets/components/_header.scss

@@ -98,7 +98,11 @@
     top: 1rem;
     left: 1rem;
     opacity: .4;
-    @extend %icon, %icon-search;
+    @if $style == 'dark' {
+      @extend %icon, %icon-search-white;
+    } @else {
+      @extend %icon, %icon-search;
+    }
   }
 }
 
@@ -132,7 +136,11 @@
   opacity: .3;
 
   &:hover { opacity: .5; }
-  &:before { @extend %icon, %icon-clear; }
+  @if $style == 'dark' {
+    &:before { @extend %icon, %icon-close-white; }
+  } @else {
+    &:before { @extend %icon, %icon-clear; }
+  }
   ._search-active > & { display: block; }
 }
 

assets/stylesheets/components/_prism.scss

@@ -17,7 +17,11 @@
 .token.constant,
 .token.symbol,
 .token.deleted {
-  color: #905;
+  @if $style == 'dark' {
+    color: #cf6a4c;
+  } @else {
+    color: #905;
+  }
 }
 
 .token.selector,
@@ -26,7 +30,11 @@
 .token.char,
 .token.builtin,
 .token.inserted {
-  color: #5e8e01;
+  @if $style == 'dark' {
+    color: #d0c584;
+  } @else {
+    color: #5e8e01;
+  }
 }
 
 .token.operator,
@@ -34,23 +42,39 @@
 .token.url,
 .language-css .token.string,
 .style .token.string {
-  color: #a67f59;
+  @if $style == 'dark' {
+    color: #8f9d6a;
+  } @else {
+    color: #a67f59;
+  }
 }
 
 .token.atrule,
 .token.attr-value,
 .token.keyword {
-  color: #0070a3;
+  @if $style == 'dark' {
+    color: #7587a6;
+  } @else {
+    color: #0070a3;
+  }
 }
 
 .token.function {
-  color: #dd4a68;
+  @if $style == 'dark' {
+    color: #ac885b;
+  } @else {
+    color: #dd4a68;
+  }
 }
 
 .token.regex,
 .token.important,
 .token.variable {
-  color: #e90;
+  @if $style == 'dark' {
+    color: #e9c062;
+  } @else {
+    color: #e90;
+  }
 }
 
 .token.important {

assets/stylesheets/components/_sidebar.scss

@@ -162,7 +162,11 @@
   &:hover { opacity: .65; }
 
   &:before {
-    @extend %icon, %icon-dir;
+    @if $style == 'dark' {
+      @extend %icon, %icon-dir-white;
+    } @else {
+      @extend %icon, %icon-dir;
+    }
 
     .open > &, .open-title > & {
       -webkit-transform: rotate(90deg);
@@ -340,6 +344,7 @@
 ._sidebar-footer-link {
   position: relative;
   display: block;
+  overflow: hidden;
   height: 2.5rem;
   line-height: 1rem;
   padding: .75rem;
@@ -360,7 +365,31 @@
 }
 
 ._sidebar-footer-edit {
-  &:before { @extend %icon-settings; }
+  @if $style == 'dark' {
+    &:before { @extend %icon-settings-white; }
+  } @else {
+    &:before { @extend %icon-settings; }
+  }
+}
+
+._sidebar-footer-light {
+  float: right;
+  width: 2.5rem;
+  padding: 0;
+  opacity: .6;
+
+  &:before {
+    float: none;
+    position: absolute;
+    top: .75rem;
+    left: .75rem;
+
+    @if $style == 'dark' {
+      @extend %icon-light-white;
+    } @else {
+      @extend %icon-light;
+    }
+  }
 }
 
 ._sidebar-footer-save {
@@ -370,5 +399,9 @@
   box-shadow: inset 0 1px $noteGreenBorder,
                     1px 0 $noteGreenBorder;
 
-  &:before { @extend %icon-check; }
+  @if $style == 'dark' {
+    &:before { @extend %icon-check-white; }
+  } @else {
+    &:before { @extend %icon-check; }
+  }
 }

assets/stylesheets/global/_classes.scss

@@ -101,7 +101,11 @@
     height: .4375rem;
     margin: .125rem 0 0 .0625rem;
     vertical-align: top;
-    @extend %icon, %icon-link;
+    @if $style == 'dark' {
+      @extend %icon, %icon-link-white;
+    } @else {
+      @extend %icon, %icon-link;
+    }
   }
 }
 

assets/stylesheets/global/_icons.scss

@@ -4,7 +4,7 @@
   width: 1rem;
   height: 1rem;
   background-image: image-url('icons.png');
-  background-size: 5rem 13rem;
+  background-size: 5rem 15rem;
 }
 
 @media (-webkit-min-device-pixel-ratio: 1.5), (min-resolution: 144dpi) {
@@ -77,3 +77,10 @@
 ._icon-socketio:before      { background-position: -2rem -12rem; }
 ._icon-modernizr:before     { background-position: -3rem -12rem; }
 ._icon-bower:before         { background-position: -4rem -12rem; }
+%icon-search-white          { background-position: 0 -13rem; }
+%icon-dir-white             { background-position: -1rem -13rem; }
+%icon-link-white            { background-position: -2.25rem -13.25rem; }
+%icon-settings-white        { background-position: -3rem -13rem; }
+%icon-check-white           { background-position: -4rem -13rem; }
+%icon-light                 { background-position: 0 -14rem; }
+%icon-light-white           { background-position: -1rem -14rem; }

assets/stylesheets/global/_variables.scss

@@ -1,6 +1,8 @@
 $baseFont: 'Open Sans', Helvetica, Arial, sans-serif;
 $monoFont: 'Source Code Pro', 'Inconsolata-g', Consolas, Menlo, monospace;
 
+$style: 'light';
+
 $headerHeight: 3rem;
 $sidebarWidth: 18rem;
 $sidebarMediumWidth: 16rem;

assets/stylesheets/global/variables-dark.scss

@@ -0,0 +1,82 @@
+$baseFont: 'Open Sans', Helvetica, Arial, sans-serif;
+$monoFont: 'Source Code Pro', 'Inconsolata-g', Consolas, Menlo, monospace;
+
+$style: 'dark';
+
+$headerHeight: 3rem;
+$sidebarWidth: 18rem;
+$sidebarMediumWidth: 16rem;
+
+$contentBackground: #2d2d2d;
+
+$textColor: #b4b3af;
+$textColorLight: #7e7d7d;
+$textColorLighter: #6a6868;
+
+$inputFocusBorder: #444;
+
+$focusBackground: #3d3d3e;
+$focusBorder: #3d3d3e;
+$focusText: #f7f2f2;
+
+$loadingText: #616161;
+$splashText: #616161;
+$promoText: #616161;
+
+$selectionBackground: #346fce;
+$selectionBorder: #346fce;
+$selectionText: #fff;
+
+$highlightBackground: #3d4449;
+
+$linkColor: #f7f2f2;
+$linkColorHover: #fff;
+
+$headerBackground: #1e1e1e;
+$headerBorder: #1e1e1e;
+
+$sidebarBackground: #262626;
+$sidebarBorder: #262626;
+
+$scrollbarColor: #515151;
+$scrollbarColorHover: #888;
+
+$pathBackground: $headerBackground;
+$pathBorder: $headerBorder;
+
+$noticeBackground: #1e1e1e;
+$noticeBorder: #1e1e1e;
+
+$boxBackground: #1e1e1e;
+$boxBorder: #0a0a0a;
+$boxBorderLight: #171717;
+$boxHeaderBackground: #1e1e1e;
+
+$noteBackground: #3a3e31;
+$noteBorder: #1a1c17;
+
+$noteGreenBackground: #283e2b;
+$noteGreenBorder: #111b13;
+
+$noteBlueBackground: #1f2f3e;
+$noteBlueBorder: #101922;
+
+$noteOrangeBackground: #3e271d;
+$noteOrangeBorder: #1f1511;
+
+$noteRedBackground: #3e1b1b;
+$noteRedBorder: #1b0a0a;
+
+$labelBackground: #38383a;
+
+$notifBackground: rgba(#000, .85);
+$notifColor: #fff;
+$notifColorLight: #bbb;
+
+$mediumScreen: '(max-width: 800px)';
+
+$contentZ: 1;
+$sidebarZ: 2;
+$headerZ: 3;
+$noticeZ: 4;
+$hoverZ: 5;

lib/app.rb

@@ -17,7 +17,7 @@ class App < Sinatra::Application
     set :assets_prefix, 'assets'
     set :assets_path, -> { File.join(public_folder, assets_prefix) }
     set :assets_manifest_path, -> { File.join(assets_path, 'manifest.json') }
-    set :assets_compile, %w(*.png docs.js application.js application.css)
+    set :assets_compile, %w(*.png docs.js application.js application.css application-dark.css)
 
     require 'yajl/json_gem'
     set :docs_prefix, 'docs'
@@ -117,6 +117,21 @@ class App < Sinatra::Application
     def query_string_for_redirection
       request.query_string.empty? ? nil : "?#{request.query_string}"
     end
+
+    def main_stylesheet_path
+      stylesheet_paths[cookies[:dark].present? ? :dark : :default]
+    end
+
+    def alternate_stylesheet_path
+      stylesheet_paths[cookies[:dark].present? ? :default : :dark]
+    end
+
+    def stylesheet_paths
+      @stylesheet_paths ||= {
+        default: stylesheet_path('application'),
+        dark: stylesheet_path('application-dark')
+      }
+    end
   end
 
   before do

public/icons/ui/check-white/SOURCE

@@ -0,0 +1 @@
+http://happytodesign.com/hicons/

public/icons/ui/dir-white/SOURCE

@@ -0,0 +1 @@
+http://gemicon.net/

public/icons/ui/light-white/SOURCE

@@ -0,0 +1 @@
+http://www.entypo.com/

public/icons/ui/light/SOURCE

@@ -0,0 +1 @@
+http://www.entypo.com/

public/icons/ui/link-white/SOURCE

@@ -0,0 +1 @@
+http://www.entypo.com/

public/icons/ui/search-white/SOURCE

@@ -0,0 +1 @@
+http://www.entypo.com/

public/icons/ui/settings-white/SOURCE

@@ -0,0 +1 @@
+http://gemicon.net/

views/index.erb

@@ -26,7 +26,7 @@
   <link rel="apple-touch-icon" sizes="144x144" href="http://maxcdn.devdocs.io/images/apple-icon-144.png">
   <link rel="apple-touch-icon" sizes="152x152" href="http://maxcdn.devdocs.io/images/apple-icon-152.png">
   <link rel="apple-touch-icon" sizes="160x160" href="http://maxcdn.devdocs.io/images/apple-icon-160.png">
-  <%= stylesheet_tag 'application' %>
+  <link rel="stylesheet" href="<%= main_stylesheet_path %>" data-alt="<%= alternate_stylesheet_path %>">
   <%= javascript_tag 'application', asset_host: false %>
   <%= javascript_tag 'docs' %><% unless App.production? %>
   <%= javascript_tag 'debug' %><% end %>

views/manifest.erb

@@ -4,6 +4,7 @@ CACHE:
 /
 <%= javascript_path 'application', asset_host: false %>
 <%= stylesheet_path 'application' %>
+<%= stylesheet_path 'application-dark' %>
 <%= image_path 'icons.png' %>
 <%= image_path 'icons@2x.png' %>
 <%= image_path 'maxcdn.png' %>

views/other.erb

@@ -8,7 +8,7 @@
   <title>DevDocs<%= ": #{@doc['name']} API Documentation" if doc_index_page? %></title>
   <link rel="icon" type="image/x-icon" href="http://maxcdn.devdocs.io/favicon.ico">
   <link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="Search DevDocs">
-  <%= stylesheet_tag 'application' %>
+  <link rel="stylesheet" href="<%= main_stylesheet_path %>" data-alt="<%= alternate_stylesheet_path %>">
   <%= javascript_tag 'application', asset_host: false %><% unless App.production? %>
   <%= javascript_tag 'debug' %><% end %>
   <script>app.DOC = <%= @doc.to_json %>;</script>