list well known folders works in dao... not yet in ui

src/js/app-config.js

@@ -26,28 +26,7 @@ define([], function() {
 				secure: true,
 				port: 465,
 				host: 'smtp.gmail.com'
-			},
+			}
-			folders: [{
-				type: 'Inbox',
-				count: undefined,
-				path: 'INBOX'
-			}, {
-				type: 'Sent',
-				count: undefined,
-				path: '[Gmail]/Gesendet'
-			}, {
-				type: 'Outbox',
-				count: undefined,
-				path: 'OUTBOX'
-			}, {
-				type: 'Drafts',
-				count: undefined,
-				path: '[Gmail]/Entw&APw-rfe'
-			}, {
-				type: 'Trash',
-				count: undefined,
-				path: '[Gmail]/Papierkorb'
-			}]
 		}
 	};
 

src/js/controller/mail-list.js

@@ -52,6 +52,10 @@ define(function(require) {
         };
 
         $scope.$watch('currentFolder', function() {
+            if (!getFolder()) {
+                return;
+            }
+
             // production... in chrome packaged app
             if (window.chrome && chrome.identity) {
                 initList();

src/js/controller/navigation.js

@@ -1,11 +1,24 @@
 define(function(require) {
     'use strict';
 
-    var folders = require('js/app-config').config.gmail.folders;
+    var appController = require('js/app-controller'),
+        emailDao;
 
     var NavigationCtrl = function($scope) {
         $scope.navOpen = false;
-        $scope.folders = folders;
+
+        emailDao = appController._emailDao;
+
+        initFolders(function(folders) {
+            $scope.folders = folders;
+            $scope.apply();
+            // select inbox as the current folder on init
+            $scope.openFolder($scope.folders[0]);
+        });
+
+        //
+        // scope functions
+        //
 
         $scope.openNav = function() {
             $scope.navOpen = true;
@@ -19,8 +32,6 @@ define(function(require) {
             $scope.currentFolder = folder;
             $scope.closeNav();
         };
-        // select inbox as the current folder on init
-        $scope.openFolder($scope.folders[0]);
 
         $scope.write = function(replyTo) {
             var replyToId = (replyTo) ? replyTo.uid : '',
@@ -38,6 +49,21 @@ define(function(require) {
 
             window.open(url, 'Compose Message', 'toolbar=no,width=720,height=640,left=500,top=200,status=no,scrollbars=no,resize=no');
         };
+
+        //
+        // helper functions
+        //
+
+        function initFolders(callback) {
+            emailDao.imapListFolders(function(err, folders) {
+                if (err) {
+                    console.log(err);
+                    return;
+                }
+
+                callback(folders);
+            });
+        }
     };
 
     return NavigationCtrl;

src/js/dao/email-dao.js

@@ -105,9 +105,57 @@ define(function(require) {
      * List the folders in the user's IMAP mailbox.
      */
     EmailDAO.prototype.imapListFolders = function(callback) {
-        var self = this;
+        var self = this,
+            dbType = 'folders';
 
-        self._imapClient.listAllFolders(callback);
+        // check local cache
+        self._devicestorage.listItems(dbType, 0, null, function(err, stored) {
+            if (err) {
+                callback(err);
+                return;
+            }
+
+            if (!stored || stored.length < 1) {
+                // no folders cached... fetch from server
+                fetchFromServer();
+                return;
+            }
+
+            callback(null, stored[0]);
+        });
+
+        function fetchFromServer() {
+            var folders;
+
+            // fetch list from imap server
+            self._imapClient.listWellKnownFolders(function(err, wellKnownFolders) {
+                if (err) {
+                    callback(err);
+                    return;
+                }
+
+                folders = [
+                    wellKnownFolders.inbox,
+                    wellKnownFolders.sent, {
+                        type: 'Outbox',
+                        path: 'OUTBOX'
+                    },
+                    wellKnownFolders.drafts,
+                    wellKnownFolders.trash
+                ];
+
+                // cache locally
+                // persist encrypted list in device storage
+                self._devicestorage.storeList([folders], dbType, function(err) {
+                    if (err) {
+                        callback(err);
+                        return;
+                    }
+
+                    callback(null, folders);
+                });
+            });
+        }
     };
 
     /**

test/integration/email-dao-test.js

@@ -40,6 +40,21 @@ define(function(require) {
             });
         });
 
+        describe('List well known folders', function() {
+            it('should work', function(done) {
+                // clear folders from cache
+                emailDao._devicestorage.removeList('folders', function(err) {
+                    expect(err).to.not.exist;
+
+                    emailDao.imapListFolders(function(err, folders) {
+                        expect(err).to.not.exist;
+                        expect(folders.length).to.be.at.least(1);
+                        done();
+                    });
+                });
+            });
+        });
+
         describe('IMAP sync INBOX messages', function() {
             it('should work', function(done) {
                 emailDao.imapSync({

test/new-unit/email-dao-test.js

@@ -218,11 +218,38 @@ define(function(require) {
             });
 
             describe('IMAP: list folders', function() {
-                it('should work', function(done) {
+                var dummyFolders = [{
-                    imapClientStub.listAllFolders.yields();
+                    type: 'Inbox',
-                    emailDao.imapListFolders(function(err) {
+                    path: 'INBOX'
-                        expect(imapClientStub.listAllFolders.calledOnce).to.be.true;
+                }, {
+                    type: 'Outbox',
+                    path: 'OUTBOX'
+                }];
+
+                it('should work on empty local db', function(done) {
+                    devicestorageStub.listItems.yields(null, [dummyFolders]);
+
+                    emailDao.imapListFolders(function(err, folders) {
                         expect(err).to.not.exist;
+                        expect(devicestorageStub.listItems.calledOnce).to.be.true;
+                        expect(folders[0].type).to.equal('Inbox');
+                        done();
+                    });
+                });
+
+                it('should work with local cache', function(done) {
+                    devicestorageStub.listItems.yields(null, []);
+                    imapClientStub.listWellKnownFolders.yields(null, {
+                        inbox: dummyFolders[0]
+                    });
+                    devicestorageStub.storeList.yields();
+
+                    emailDao.imapListFolders(function(err, folders) {
+                        expect(err).to.not.exist;
+                        expect(devicestorageStub.listItems.calledOnce).to.be.true;
+                        expect(imapClientStub.listWellKnownFolders.calledOnce).to.be.true;
+                        expect(devicestorageStub.storeList.calledOnce).to.be.true;
+                        expect(folders[0].type).to.equal('Inbox');
                         done();
                     });
                 });