feat(docs): add full offline support

Rakefile

@@ -221,8 +221,14 @@ end
 
 
 desc 'Generate docs'
-task :docs do
+task :docs => [:init] do
   `node docs/src/gen-docs.js`
+  File.open(path_to('docs/.htaccess'), File::RDWR) do |f|
+    text = f.read
+    f.truncate 0
+    f.rewind
+    f.write text.sub('"NG_VERSION_FULL"', NG_VERSION.full)
+  end
 end
 
 
@@ -250,19 +256,28 @@ task :package => [:clean, :compile, :docs] do
 
   File.open("#{pkg_dir}/docs-#{NG_VERSION.full}/index.html", File::RDWR) do |f|
     text = f.read
+    f.truncate 0
     f.rewind
     f.write text.sub('angular.min.js', "angular-#{NG_VERSION.full}.min.js")
   end
 
   File.open("#{pkg_dir}/docs-#{NG_VERSION.full}/docs-scenario.html", File::RDWR) do |f|
     text = f.read
+    f.truncate 0
     f.rewind
     f.write text.sub('angular-scenario.js', "angular-scenario-#{NG_VERSION.full}.js")
   end
 
   File.open("#{pkg_dir}/docs-#{NG_VERSION.full}/appcache.manifest", File::RDWR) do |f|
-
     text = f.read
+    f.truncate 0
+    f.rewind
+    f.write text.sub('angular.min.js', "angular-#{NG_VERSION.full}.min.js")
+  end
+
+  File.open("#{pkg_dir}/docs-#{NG_VERSION.full}/appcache-offline.manifest", File::RDWR) do |f|
+    text = f.read
+    f.truncate 0
     f.rewind
     f.write text.sub('angular.min.js', "angular-#{NG_VERSION.full}.min.js")
   end

docs/src/appCache.js

@@ -11,12 +11,13 @@ function appCache(path) {
     if(!path) {
       return appCacheTemplate();
     }
-    var blackList = ["offline.html",
-                     "sitemap.xml",
-                     "robots.txt",
-                     "docs-scenario.html",
-                     "docs-scenario.js",
-                     "appcache.manifest"
+    var blackList = ["build/docs/offline.html",
+                     "build/docs/sitemap.xml",
+                     "build/docs/robots.txt",
+                     "build/docs/docs-scenario.html",
+                     "build/docs/docs-scenario.js",
+                     "build/docs/appcache.manifest",
+                     "build/docs/.htaccess"
                     ];
 
     var result = ["CACHE MANIFEST",

docs/src/gen-docs.js

@@ -57,6 +57,7 @@ function writeTheRest(writesFuture) {
   writesFuture.push(writer.output('docs-scenario.js', ngdoc.scenarios(docs)));
   writesFuture.push(writer.output('robots.txt', 'Sitemap: http://docs.angularjs.org/sitemap.xml\n'));
   writesFuture.push(writer.output('appcache.manifest',appCache()));
+  writesFuture.push(writer.copyTpl('.htaccess'));
 
   writesFuture.push(writer.merge(['docs.js',
                                   'doc_widgets.js'],

docs/src/templates/.htaccess

@@ -1,57 +1,11 @@
-Options +Indexes
-IndexIgnore favicon.ico
+## OFFLINE SUPPORT ##
+
+# These rules tell apache to check if there is a cookie called "offline", with value set to the
+# current angular version. If this rule matches the appcache-offline.manifest will be served for
+# requests to appcache.manifest
+#
+# This file must be processed by Rake in order to replace %ANGULAR_VERSION% with the actual version.
+
 RewriteEngine on
-
-# Enable Crawling of AJAX apps.
-# See: http://code.google.com/web/ajaxcrawling/docs/getting-started.html
-RewriteCond %{QUERY_STRING} ^_escaped_fragment_=\/(.*)$
-RewriteRule ^(.*)$                                  /$1/%1.html?
-
-# Map versiond angular files to root folder.
-RewriteRule ^angular([\-\w]+)(\d+\.\d+\.\d+)(.*)$   /$2/angular$1$2$3
-# Map 1.2.3/docs to 1.2.3/docs-1.2.3/ so that we don't need the version in the URL twice
-RewriteRule ^(\d+\.\d+\.\d+)/docs/(.*)$             /$1/docs-$1/$2
-
-# If the user has forgot the trailing slash than add it through redirect
-RewriteRule ^latest$                                /latest/            [R]
-RewriteRule ^latest/docs$                           /latest/docs/       [R]
-
-# To change the latest version just change this line.
-# IMPORTANT: the order of lines matters, do not move to top!
-RewriteRule ^latest/(.*)$                           /0.9.17/$1
-
-# If the request comes on http://docs.angularjs.org then point it to latest/docs
-RewriteCond %{HTTP_HOST}        ^docs\.angularjs\.org$
-RewriteCond %{REQUEST_URI}      !^/\d+\.\d+\.\d+
-RewriteCond %{REQUEST_URI}      !^/latest
-RewriteCond %{REQUEST_URI}      !^/angular-
-RewriteCond %{REQUEST_URI}      !^/favicon.ico
-RewriteRule ^(.*)$              /latest/docs/$1
-
-## PERFORMANCE ##
-
-ExpiresActive On
-
-# cache js files for one year
-<FilesMatch "^angular-(ie-compat-)?[\d\.]+(\.min)?\.js">
-ExpiresDefault "access plus 1 year"
-</FilesMatch>
-
-# don't cache appcache manifests
-<FilesMatch "\.manifest$">
-ExpiresDefault "access"
-</FilesMatch>
-
-# cache everything else for 1h
-ExpiresDefault "access plus 60 minutes"
-
-
-# compression
-SetOutputFilter DEFLATE
-Header set Vary "Accept-Encoding"
-
-
-# content types
-AddType application/javascript js
-AddType text/cache-manifest .manifest
-
+RewriteCond %{HTTP_COOKIE}      ng-offline="NG_VERSION_FULL"
+RewriteRule appcache.manifest   appcache-offline.manifest

docs/src/templates/docs.css

@@ -83,6 +83,12 @@ li {
     font-size: 12px;
 }
 
+#offline{
+  text-decoration:underline;
+  cursor:pointer;
+  color:blue;
+}
+
 #copyright {
   float:right;
   text-align: right;
@@ -317,3 +323,78 @@ li {
   display: inline;
   padding-left: 0;
 }
+
+/* subpages */
+
+#fader {
+  display: none;
+  position: fixed;
+  top: 0px;
+  left: 0px;
+  width: 100%;
+  height: 100%;
+  background-color: black;
+  opacity: 0.8;
+  -ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=80)";
+  filter: alpha(opacity=80);
+  z-index: 3;
+}
+
+#subpage {
+  display: none;
+}
+
+#subpage > div {
+  position: fixed;
+  top: 50%;
+  left: 50%;
+  width: 729px;
+  margin-top: -140px;
+  margin-left: -365px;
+  z-index: 3;
+  background-color: #7989D6;
+  border-radius: 15px;
+  -moz-border-radius: 15px;
+  -webkit-border-radius: 15px;
+  box-shadow: 4px 4px 6px #48577D;
+  -webkit-box-shadow: 4px 4px 6px #48577D;
+  -moz-box-shadow: 4px 4px 6px #48577D;
+}
+
+#subpage h2 {
+  height: 1.8em;
+  -moz-border-radius-topright: 15px;
+  -moz-border-radius-topleft: 15px;
+  border-radius-topright: 15px;
+  border-radius-topleft: 15px;
+  -webkit-border-top-right-radius: 15px;
+  -webkit-border-top-left-radius: 15px;
+  border-top-right-radius: 15px;
+  border-top-left-radius: 15px;
+  padding: 0.6em 0 0 1em;
+  margin: 0;
+  color: white;
+}
+
+#subpage > div > a {
+  color: black;
+  float: right;
+  margin: -40px 10px;
+  font-size: 1em;
+}
+
+#subpage > div > a:hover {
+  text-decoration: none;
+  color: white;
+}
+
+#subpage > div > p {
+  background-color: white;
+  padding: 0.5em 1em 0.5em 1em;
+  margin-bottom: 0.5em;
+}
+
+#cacheButton {
+  margin: 0em 2em 1em 0em;
+  float:right;
+}

docs/src/templates/docs.js

@@ -1,15 +1,17 @@
-var HAS_HASH = /#/;
-DocsController.$inject = ['$location', '$browser', '$window'];
-function DocsController($location, $browser, $window) {
+DocsController.$inject = ['$location', '$browser', '$window', '$cookies'];
+function DocsController($location, $browser, $window, $cookies) {
   window.$root = this.$root;
-  var self = this;
+
+  var self = this,
+      OFFLINE_COOKIE_NAME = 'ng-offline',
+      HAS_HASH = /#/;
+
   this.$location = $location;
 
   self.versionNumber = angular.version.full;
   self.version = angular.version.full + "  " + angular.version.codeName;
-  self.cookieName = "angularPref";
   self.subpage = false;
-  self.offlineEnabled = (document.cookie.indexOf(self.cookieName) !== -1);
+  self.offlineEnabled = ($cookies[OFFLINE_COOKIE_NAME] == angular.version.full);
 
   if (!HAS_HASH.test($location.href)) {
     $location.hashPath = '!/api';
@@ -73,6 +75,27 @@ function DocsController($location, $browser, $window) {
            "subject=" + escape("Feedback on " + $location.href) + "&" +
            "body=" + escape("Hi there,\n\nI read " + $location.href + " and wanted to ask ....");
   };
+
+  /** stores a cookie that is used by apache to decide which manifest ot send */
+  this.enableOffline = function() {
+    //The cookie will be good for one year!
+    var date = new Date();
+    date.setTime(date.getTime()+(365*24*60*60*1000));
+    var expires = "; expires="+date.toGMTString();
+    var value = angular.version.full;
+    document.cookie = OFFLINE_COOKIE_NAME + "="+value+expires+"; path=" + $location.path;
+
+    //force the page to reload so server can serve new manifest file
+    window.location.reload(true);
+  };
+
+  // bind escape to hash reset callback
+  angular.element(window).bind('keydown', function(e) {
+    if (e.keyCode === 27) {
+      self.subpage = false;
+      self.$eval();
+    }
+  });
 }
 
 // prevent compilation of code

docs/src/templates/index.html

@@ -77,10 +77,30 @@
          ng:href="https://github.com/angular/angular.js/blob/master/CHANGELOG.md#{{versionNumber}}"
          ng:bind-template="v{{version}}">
       </a>
+      <a ng:hide="offlineEnabled" ng:click ="subpage = true">(enable offline support)</a>
+      <span ng:show="offlineEnabled">(offline support enabled)</span>
       <span id="copyright">© 2010-2011 AngularJS</span>
     </div>
   </div>
 
+  <div id="fader" ng:show="subpage"></div>
+  <div id="subpage" ng:show="subpage">
+    <div>
+      <h2>Would you like full offline support for this AngularJS Docs App?</h2>
+      <a ng:click="subpage=false">&#10005;</a>
+      <p>
+        If you want to be able to access the entire AngularJS documentation offline, click the
+        button below. This will reload the current page and trigger background downloads of all the
+        necessary files (approximately 3.5MB). The next time you load the docs, the browser will
+        use these cached files.
+        <br><br>
+        This feature is supported on all modern browsers, except for IE9 which lacks application
+        cache support.
+      </p>
+      <button id="cacheButton" ng:click="enableOffline()">Let me have them all!</button>
+    </div>
+  </div>
+
   <script src="syntaxhighlighter/syntaxhighlighter-combined.js"></script>
   <!-- jquery place holder -->
   <script src="../angular.min.js" ng:autobind></script>