diff --git a/apps/calendar/lib/app.php b/apps/calendar/lib/app.php
index eb440b5794bff95c51cfa51cec3dc97635eb2415..8cbef4646fcd5fd3e72b25de173416108f8de5f6 100755
--- a/apps/calendar/lib/app.php
+++ b/apps/calendar/lib/app.php
@@ -179,7 +179,7 @@ class OC_Calendar_App{
 			foreach($events as $event) {
 				$vobject = OC_VObject::parse($event['calendardata']);
 				if(!is_null($vobject)) {
-					$vcategories->loadFromVObject($vobject->VEVENT, true);
+					self::loadCategoriesFromVCalendar($vobject);
 				}
 			}
 		}
@@ -190,7 +190,16 @@ class OC_Calendar_App{
 	 * @see OC_VCategories::loadFromVObject
 	 */
 	public static function loadCategoriesFromVCalendar(OC_VObject $calendar) {
-		self::getVCategories()->loadFromVObject($calendar->VEVENT, true);
+		$object = null;
+		if (isset($calendar->VEVENT)) {
+			$object = $calendar->VEVENT;
+		} else
+		if (isset($calendar->VTODO)) {
+			$object = $calendar->VTODO;
+		}
+		if ($object) {
+			self::getVCategories()->loadFromVObject($object, true);
+		}
 	}
 
 	public static function getRepeatOptions(){
diff --git a/apps/tasks/ajax/addtask.php b/apps/tasks/ajax/addtask.php
new file mode 100644
index 0000000000000000000000000000000000000000..891fbdb96df69bca6c955ac1bff97696cf435769
--- /dev/null
+++ b/apps/tasks/ajax/addtask.php
@@ -0,0 +1,26 @@
+<?php
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$calendars = OC_Calendar_Calendar::allCalendars(OCP\User::getUser(), true);
+$cid = reset($calendars)['id'];
+
+$input = $_GET['text'];
+$request = array();
+$request['summary'] = $input;
+$request["categories"] = null;
+$request['priority'] = null;
+$request['percent_complete'] = null;
+$request['completed'] = null;
+$request['location'] = null;
+$request['due'] = null;
+$request['description'] = null;
+$vcalendar = OC_Task_App::createVCalendarFromRequest($request);
+$id = OC_Calendar_Object::add($cid, $vcalendar->serialize());
+
+$user_timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+$task = OC_Task_App::arrayForJSON($id, $vcalendar->VTODO, $user_timezone);
+
+OCP\JSON::success(array('task' => $task));
diff --git a/apps/tasks/ajax/addtaskform.php b/apps/tasks/ajax/addtaskform.php
new file mode 100644
index 0000000000000000000000000000000000000000..20797f31aba122ff914adb1372820fc5a884de5e
--- /dev/null
+++ b/apps/tasks/ajax/addtaskform.php
@@ -0,0 +1,20 @@
+<?php
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$calendars = OC_Calendar_Calendar::allCalendars(OCP\User::getUser(), true);
+$category_options = OC_Calendar_App::getCategoryOptions();
+$percent_options = range(0, 100, 10);
+$priority_options = OC_Task_App::getPriorityOptions();
+$tmpl = new OC_Template('tasks','part.addtaskform');
+$tmpl->assign('calendars',$calendars);
+$tmpl->assign('category_options', $category_options);
+$tmpl->assign('percent_options', $percent_options);
+$tmpl->assign('priority_options', $priority_options);
+$tmpl->assign('details', new OC_VObject('VTODO'));
+$tmpl->assign('categories', '');
+$page = $tmpl->fetchPage();
+
+OCP\JSON::success(array('data' => array( 'page' => $page )));
diff --git a/apps/tasks/ajax/delete.php b/apps/tasks/ajax/delete.php
new file mode 100644
index 0000000000000000000000000000000000000000..6d2868748d1fb01bed675e6e8f320b1bee79ba74
--- /dev/null
+++ b/apps/tasks/ajax/delete.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * ownCloud - Addressbook
+ *
+ * @author Jakob Sack
+ * @copyright 2011 Jakob Sack mail@jakobsack.de
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$id = $_GET['id'];
+$task = OC_Calendar_App::getEventObject( $id );
+
+OC_Calendar_Object::delete($id);
+OCP\JSON::success(array('data' => array( 'id' => $id )));
diff --git a/apps/tasks/ajax/edittask.php b/apps/tasks/ajax/edittask.php
new file mode 100644
index 0000000000000000000000000000000000000000..78d1f19393854c3aec5839e77697b9ebb5883d61
--- /dev/null
+++ b/apps/tasks/ajax/edittask.php
@@ -0,0 +1,31 @@
+<?php
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$l10n = new OC_L10N('tasks');
+
+$id = $_POST['id'];
+$vcalendar = OC_Calendar_App::getVCalendar($id);
+
+$errors = OC_Task_App::validateRequest($_POST);
+if (!empty($errors)) {
+	OCP\JSON::error(array('data' => array( 'errors' => $errors )));
+	exit();
+}
+
+OC_Task_App::updateVCalendarFromRequest($_POST, $vcalendar);
+OC_Calendar_Object::edit($id, $vcalendar->serialize());
+
+$priority_options = OC_Task_App::getPriorityOptions();
+$tmpl = new OC_Template('tasks','part.details');
+$tmpl->assign('priority_options', $priority_options);
+$tmpl->assign('details', $vcalendar->VTODO);
+$tmpl->assign('id', $id);
+$page = $tmpl->fetchPage();
+
+$user_timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+$task = OC_Task_App::arrayForJSON($id, $vcalendar->VTODO, $user_timezone);
+
+OCP\JSON::success(array('data' => array( 'id' => $id, 'page' => $page, 'task' => $task )));
diff --git a/apps/tasks/ajax/edittaskform.php b/apps/tasks/ajax/edittaskform.php
new file mode 100644
index 0000000000000000000000000000000000000000..a439a0c031728a1720fb87fcef1c7a135587afaf
--- /dev/null
+++ b/apps/tasks/ajax/edittaskform.php
@@ -0,0 +1,24 @@
+<?php
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$id = $_GET['id'];
+$details = OC_Calendar_App::getVCalendar($id)->VTODO;
+$categories = $details->getAsString('CATEGORIES');
+
+$category_options = OC_Calendar_App::getCategoryOptions();
+$percent_options = range(0, 100, 10);
+$priority_options = OC_Task_App::getPriorityOptions();
+
+$tmpl = new OC_Template('tasks','part.edittaskform');
+$tmpl->assign('category_options', $category_options);
+$tmpl->assign('percent_options', $percent_options);
+$tmpl->assign('priority_options', $priority_options);
+$tmpl->assign('id',$id);
+$tmpl->assign('details',$details);
+$tmpl->assign('categories', $categories);
+$page = $tmpl->fetchPage();
+
+OCP\JSON::success(array('data' => array( 'page' => $page )));
diff --git a/apps/tasks/ajax/getdetails.php b/apps/tasks/ajax/getdetails.php
new file mode 100644
index 0000000000000000000000000000000000000000..34ddaa7791a24dcd7df8bcd613a5c34dcb88736f
--- /dev/null
+++ b/apps/tasks/ajax/getdetails.php
@@ -0,0 +1,24 @@
+<?php
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$l10n = new OC_L10N('tasks');
+
+$id = $_GET['id'];
+$task = OC_Calendar_Object::find($id);
+$details = OC_VObject::parse($task['calendardata']);
+if (!$details){
+	OCP\JSON::error();
+	exit;
+}
+
+$priority_options = OC_Task_App::getPriorityOptions();
+$tmpl = new OC_Template('tasks','part.details');
+$tmpl->assign('priority_options', $priority_options);
+$tmpl->assign('details',$details->VTODO);
+$tmpl->assign('id',$id);
+$page = $tmpl->fetchPage();
+
+OCP\JSON::success(array('data' => array( 'id' => $id, 'page' => $page )));
diff --git a/apps/tasks/ajax/gettasks.php b/apps/tasks/ajax/gettasks.php
new file mode 100644
index 0000000000000000000000000000000000000000..011730d0a13e771de2275a9f46d3e137b2479558
--- /dev/null
+++ b/apps/tasks/ajax/gettasks.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$calendars = OC_Calendar_Calendar::allCalendars(OCP\User::getUser(), true);
+$user_timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+
+$tasks = array();
+foreach( $calendars as $calendar ){
+        $calendar_tasks = OC_Calendar_Object::all($calendar['id']);
+        foreach( $calendar_tasks as $task ){
+                if($task['objecttype']!='VTODO'){
+                        continue;
+                }
+                if(is_null($task['summary'])){
+                        continue;
+                }
+		$object = OC_VObject::parse($task['calendardata']);
+		$vtodo = $object->VTODO;
+		try {
+			$tasks[] = OC_Task_App::arrayForJSON($task['id'], $vtodo, $user_timezone);
+		} catch(Exception $e) {
+                        OCP\Util::writeLog('tasks', $e->getMessage(), OCP\Util::ERROR);
+                }
+        }
+}
+
+OCP\JSON::encodedPrint($tasks);
diff --git a/apps/tasks/ajax/update_property.php b/apps/tasks/ajax/update_property.php
new file mode 100644
index 0000000000000000000000000000000000000000..46521cf6c585a2604f2ef3f6fa0993e7aa2cc6b1
--- /dev/null
+++ b/apps/tasks/ajax/update_property.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+// Init owncloud
+OCP\JSON::checkLoggedIn();
+OCP\JSON::checkAppEnabled('tasks');
+
+$id = $_POST['id'];
+$property = $_POST['type'];
+$vcalendar = OC_Calendar_App::getVCalendar( $id );
+
+$vtodo = $vcalendar->VTODO;
+switch($property) {
+	case 'summary':
+		$summary = $_POST['summary'];
+		$vtodo->setString('SUMMARY', $summary);
+		break;
+	case 'description':
+		$description = $_POST['description'];
+		$vtodo->setString('DESCRIPTION', $description);
+		break;
+	case 'location':
+		$location = $_POST['location'];
+		$vtodo->setString('LOCATION', $location);
+		break;
+	case 'categories':
+		$categories = $_POST['categories'];
+		$vtodo->setString('CATEGORIES', $categories);
+		break;
+	case 'due':
+		$due = $_POST['due'];
+		$due_date_only = $_POST['date'];
+		$type = null;
+		if ($due != 'false') {
+			try {
+				$timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+				$timezone = new DateTimeZone($timezone);
+				$due = new DateTime('@'.$due);
+				$due->setTimezone($timezone);
+				$type = Sabre_VObject_Element_DateTime::LOCALTZ;
+				if ($due_date_only) {
+					$type = Sabre_VObject_Element_DateTime::DATE;
+				}
+			} catch (Exception $e) {
+				OCP\JSON::error(array('data'=>array('message'=>OC_Task_App::$l10n->t('Invalid date/time'))));
+				exit();
+			}
+		}
+		$vtodo->setDateTime('DUE', $due, $type);
+		break;
+	case 'complete':
+		$checked = $_POST['checked'];
+		OC_Task_App::setComplete($vtodo, $checked ? '100' : '0', null);
+		break;
+	default:
+		OCP\JSON::error(array('data'=>array('message'=>'Unknown type')));
+		exit();
+}
+OC_Calendar_Object::edit($id, $vcalendar->serialize());
+
+$user_timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+$task_info = OC_Task_App::arrayForJSON($id, $vtodo, $user_timezone);
+OCP\JSON::success(array('data' => $task_info));
diff --git a/apps/tasks/appinfo/app.php b/apps/tasks/appinfo/app.php
new file mode 100644
index 0000000000000000000000000000000000000000..f346e2aa4c0adea10cf958f502f121317d6c0462
--- /dev/null
+++ b/apps/tasks/appinfo/app.php
@@ -0,0 +1,16 @@
+<?php
+$l=new OC_L10N('tasks');
+OC::$CLASSPATH['OC_Calendar_Calendar'] = 'apps/calendar/lib/calendar.php';
+OC::$CLASSPATH['OC_Task_App'] = 'apps/tasks/lib/app.php';
+
+OCP\App::register( array(
+  'order' => 11,
+  'id' => 'tasks',
+  'name' => 'Tasks' ));
+
+OCP\App::addNavigationEntry( array(
+  'id' => 'tasks_index',
+  'order' => 11,
+  'href' => OCP\Util::linkTo( 'tasks', 'index.php' ),
+  'icon' => OCP\Util::imagePath( 'tasks', 'icon.png' ),
+  'name' => $l->t('Tasks')));
diff --git a/apps/tasks/appinfo/info.xml b/apps/tasks/appinfo/info.xml
new file mode 100644
index 0000000000000000000000000000000000000000..21ab9a2476239624c297b24a177879edb348cf2a
--- /dev/null
+++ b/apps/tasks/appinfo/info.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<info>
+	<id>tasks</id>
+	<name>Tasks</name>
+	<version>0.1</version>
+	<licence>AGPL</licence>
+	<author>Bart Visscher</author>
+	<require>2</require>
+	<description>Tasks view from calendar</description>
+</info>
diff --git a/apps/tasks/css/style.css b/apps/tasks/css/style.css
new file mode 100644
index 0000000000000000000000000000000000000000..d78521bc09c387f5bfb325b5984837b9ce09f5fa
--- /dev/null
+++ b/apps/tasks/css/style.css
@@ -0,0 +1,59 @@
+#tasks_list p.loading{margin:15px;}
+#tasks_lists .done{color:#C7C7C7;}
+#task_details{position:absolute;left:63em;top:6.4em;}
+#task_details th{padding:2px;text-align:right;vertical-align:top; }
+#task_details td{padding:2px;text-align:left;vertical-align:top; }
+.error_msg{color:red;}
+.error{border-color:red;border-width:2px;}
+#tasks_lists div{position:relative;padding:0.5em 1em;}
+#tasks_lists .active{font-weight:bold;}
+#tasks_list h1{background-color:#1D2D44;color:white;font-size:120%;padding:0 0.5em;}
+
+.task{border-radius:0.4em;position:relative;padding:0.5em 1em;}
+.task:nth-child(odd){background-color:#F4F4F4;}
+.task:hover {background-color:#DDDDDD;}
+
+.task_actions{display:none;position:absolute;left:30em;top:0.2em;}
+.task:hover .task_actions {display:block}
+.task_actions img{vertical-align:middle;}
+.task_actions span{cursor:pointer;}
+
+.task .priority{background-color:black;color:white;position:absolute;top:0.5em}
+.task .priority-n{height:2.66ex;width:0.6em;}
+.task .priority-1{background:rgb(255,0,0);}
+.task .priority-2{background:rgb(200,0,0);}
+.task .priority-3{background:rgb(150,0,0);}
+.task .priority-4{background:rgb(100,0,0);}
+.task .priority-5{background:rgb(255,255,0);color:black;}
+.task .priority-6{background:rgb(192,255,0);color:black;}
+.task .priority-7{background:rgb(128,255,0);color:black;}
+.task .priority-8{background:rgb(64,255,0);color:black;}
+.task .priority-9{background:rgb(0,255,0);color:black;}
+
+.task .completed {position:absolute;left:3em;top:0.3em;}
+
+.task .summary{padding-left:4em;}
+.task .summary input{position:relative;left:5px;}
+.task.done .summary{text-decoration:line-through;}
+
+.task .tag{border-radius:0.4em;display:inline-block;opacity:0.2;margin:0 0.2em;border:1px solid transparent;padding:0 0.4em;cursor:pointer;}
+.task .tag.active{border-color:black;opacity:0.6;}
+.task .tag.active:hover{opacity:1;}
+.task:hover .tag{opacity:0.5}
+.task:hover .tag:hover{opacity:0.8;}
+
+.task .categories{position:absolute;right:12em;text-align:right;top:0.4em}
+.task .categories a{background-color:#1d2d44;color:white;}
+.task .categories .tag.active{display:none;}
+.task input.categories{display:none;top:0;text-align:left;}
+
+.task .location{background-color:#442d44;color:white;position:absolute;right:0.6em;width:9.2em;text-align:left;top:0.4em}
+.task input.location{display:none;top:0;text-align:left;right:0.3em;background-color:white;color:#333333;}
+
+.task .more{display:none;margin-top:0.5em;}
+.task_less{display:none;}
+
+.task .description{position:relative;left:4em;}
+.task .due{position:absolute;right:0.3em;}
+.task .due .date{width:6em;}
+.task .due .time{width:6em;}
diff --git a/apps/tasks/img/icon.png b/apps/tasks/img/icon.png
new file mode 100644
index 0000000000000000000000000000000000000000..df281f3ba8605658e9769156c4a4fdb9918e1220
Binary files /dev/null and b/apps/tasks/img/icon.png differ
diff --git a/apps/tasks/img/icon.svg b/apps/tasks/img/icon.svg
new file mode 100644
index 0000000000000000000000000000000000000000..d46ebab865a54f1c88f3dad85d4431bd8aa21a9d
--- /dev/null
+++ b/apps/tasks/img/icon.svg
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16"
+   height="16"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.48.2 r9819"
+   sodipodi:docname="New document 1">
+  <defs
+     id="defs4">
+    <marker
+       style="overflow:visible"
+       inkscape:stockid="InfiniteLineStart"
+       id="InfiniteLineStart"
+       refX="0"
+       refY="0"
+       orient="auto">
+      <g
+         id="g4011"
+         transform="translate(-13,0)">
+        <circle
+           d="M 3.8,0 C 3.8,0.44182781 3.4418278,0.80000001 3,0.80000001 2.5581722,0.80000001 2.2,0.44182781 2.2,0 c 0,-0.44182781 0.3581722,-0.80000001 0.8,-0.80000001 0.4418278,0 0.8,0.3581722 0.8,0.80000001 z"
+           id="circle4013"
+           r="0.8"
+           cy="0"
+           cx="3" />
+        <circle
+           d="M 7.3,0 C 7.3,0.44182781 6.9418278,0.80000001 6.5,0.80000001 6.0581722,0.80000001 5.7,0.44182781 5.7,0 c 0,-0.44182781 0.3581722,-0.80000001 0.8,-0.80000001 0.4418278,0 0.8,0.3581722 0.8,0.80000001 z"
+           id="circle4015"
+           r="0.8"
+           cy="0"
+           cx="6.5" />
+        <circle
+           d="M 10.8,0 C 10.8,0.44182781 10.441828,0.80000001 10,0.80000001 9.5581722,0.80000001 9.2,0.44182781 9.2,0 c 0,-0.44182781 0.3581722,-0.80000001 0.8,-0.80000001 0.441828,0 0.8,0.3581722 0.8,0.80000001 z"
+           id="circle4017"
+           r="0.8"
+           cy="0"
+           cx="10" />
+      </g>
+    </marker>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="1"
+     inkscape:cx="21.051806"
+     inkscape:cy="18.371489"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     showborder="false"
+     inkscape:showpageshadow="true"
+     inkscape:window-width="1280"
+     inkscape:window-height="1004"
+     inkscape:window-x="1278"
+     inkscape:window-y="-3"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata7">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-1036.3622)">
+    <rect
+       style="fill:none;stroke:#000000;stroke-width:1.00000012;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+       id="rect4398"
+       width="9"
+       height="9"
+       x="3.4999998"
+       y="1040.8619" />
+    <path
+       style="fill:none;stroke:#808080;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;marker-start:none"
+       d="m 3.971,1040.0481 c 3.3062306,2.8933 3.3751101,6.5431 3.3751101,6.5431 0,0 3.8228259,-5.3027 6.2336249,-6.3371"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="ccc" />
+  </g>
+</svg>
diff --git a/apps/tasks/index.php b/apps/tasks/index.php
new file mode 100644
index 0000000000000000000000000000000000000000..8ed5f4104345fbc822503097229d11182f5ab348
--- /dev/null
+++ b/apps/tasks/index.php
@@ -0,0 +1,34 @@
+<?php
+/*************************************************
+ * ownCloud - Tasks Plugin                        *
+ *                                                *
+ * (c) Copyright 2011 Bart Visscher               *
+ * This file is licensed under the Affero General *
+ * Public License version 3 or later.             *
+ * See the COPYING-README file.                   *
+ *************************************************/
+
+OCP\User::checkLoggedIn();
+OCP\App::checkAppEnabled('tasks');
+
+$calendars = OC_Calendar_Calendar::allCalendars(OCP\User::getUser(), true);
+if( count($calendars) == 0 ) {
+	header('Location: ' . OCP\Util::linkTo('calendar', 'index.php'));
+	exit;
+}
+
+OCP\Util::addScript('3rdparty/timepicker', 'jquery.ui.timepicker');
+OCP\Util::addStyle('3rdparty/timepicker', 'jquery.ui.timepicker');
+OCP\Util::addScript('tasks', 'tasks');
+OCP\Util::addStyle('tasks', 'style');
+OCP\Util::addScript('contacts','jquery.multi-autocomplete');
+OCP\Util::addScript('','oc-vcategories');
+OCP\App::setActiveNavigationEntry('tasks_index');
+
+$categories = OC_Calendar_App::getCategoryOptions();
+$l10n = new OC_L10N('tasks');
+$priority_options = OC_Task_App::getPriorityOptions();
+$output = new OC_Template('tasks', 'tasks', 'user');
+$output->assign('priority_options', $priority_options);
+$output->assign('categories', $categories);
+$output -> printPage();
diff --git a/apps/tasks/js/tasks.js b/apps/tasks/js/tasks.js
new file mode 100644
index 0000000000000000000000000000000000000000..60d2a523be133e2200b1bd16a5b1b310697a1f40
--- /dev/null
+++ b/apps/tasks/js/tasks.js
@@ -0,0 +1,532 @@
+OC.Tasks = {
+	bool_string_cmp:function(a, b) {
+		if (a === b) {
+			return 0;
+		}
+		if (a === false) {
+			return -1;
+		}
+		if (b === false) {
+			return 1;
+		}
+		return a.localeCompare(b);
+	},
+	create_task_div:function(task) {
+		var actions = $('#task_actions_template');
+		var summary_container = $('<p class="summary">')
+				.attr('title', task.description)
+				;
+		OC.Tasks.setSummary(summary_container, task);
+		var task_container = $('<div>')
+			.addClass('task')
+			.data('task', task)
+			.data('show_count', 0)
+			.attr('data-id', task.id)
+			.append(summary_container)
+			.append(actions.clone().removeAttr('id'))
+			;
+		task_container.find('.summary a').click(OC.Tasks.summaryClickHandler);
+		var checkbox = $('<input type="checkbox">')
+			.click(OC.Tasks.complete_task);
+		if (task.completed) {
+			checkbox.attr('checked', 'checked');
+			task_container.addClass('done');
+		}
+		$('<div>')
+			.addClass('completed')
+			.append(checkbox)
+			.prependTo(task_container);
+		var priority = task.priority;
+		$('<div>')
+			.addClass('tag')
+			.addClass('priority')
+			.addClass('priority-'+(priority?priority:'n'))
+			.text(priority)
+			.prependTo(task_container);
+		if (task.location) {
+			$('<div>')
+				.addClass('tag')
+				.addClass('location')
+				.text(task.location)
+				.appendTo(task_container);
+		}
+		var $categories = $('<div>')
+				.addClass('categories')
+				.appendTo(task_container);
+		$(task.categories).each(function(i, category){
+				$categories.append($('<a>')
+					.addClass('tag')
+					.text(category)
+				);
+		});
+		task_container.find('.task_more').click(OC.Tasks.moreClickHandler);
+		task_container.find('.task_less').click(OC.Tasks.lessClickHandler);
+		var description = $('<textarea>')
+			.addClass('description')
+			.blur(function(){
+				var task = $(this).closest('.task').data('task');
+				var description = $(this).val();
+				$.post(OC.filePath('tasks', 'ajax', 'update_property.php'), {id:task.id, type:'description', description:description}, function(jsondata){
+					if(jsondata.status == 'success') {
+						task.description = description;
+					}
+				});
+			})
+			.text(task.description);
+		var due = $('<span>')
+			.addClass('due')
+			.append(t('tasks', 'Due'));
+		due
+			.append($('<input type="date">')
+					.addClass('date')
+					.datepicker({
+						dateFormat: 'dd-mm-yy',
+						onClose: OC.Tasks.dueUpdateHandler
+					}),
+				$('<input type="time">')
+					.addClass('time')
+					.timepicker({
+						showPeriodLabels:false,
+						onClose: OC.Tasks.dueUpdateHandler
+					})
+			);
+		if (task.due){
+			var date = new Date(parseInt(task.due)*1000);
+			due.find('.date').datepicker('setDate', date);
+			if (!task.due_date_only) {
+				due.find('.time').timepicker('setTime', date.getHours()+':'+date.getMinutes());
+			}
+		}
+		$('<div>')
+			.addClass('more')
+			.append(description)
+			.append(due)
+			.appendTo(task_container);
+		$('<input placeholder="'+t('tasks', 'List')+'">')
+			.addClass('categories')
+			.multiple_autocomplete({source: categories})
+			.val(task.categories)
+			.blur(function(){
+				var task = $(this).closest('.task').data('task');
+				var categories = $(this).val();
+				$.post(OC.filePath('tasks', 'ajax', 'update_property.php'), {id:task.id, type:'categories', categories:categories}, function(jsondata){
+					if(jsondata.status == 'success') {
+						task.categories = categories.split(',');
+						$categories.empty();
+						$(task.categories).each(function(i, category){
+							$categories.append($('<a>')
+								.addClass('tag')
+								.text(category)
+								);
+							});
+					}
+				});
+			})
+			.appendTo(task_container);
+		$('<input placeholder="'+t('tasks', 'Location')+'">')
+			.addClass('location')
+			.val(task.location)
+			.blur(function(){
+				var task = $(this).closest('.task').data('task');
+				var location = $(this).val();
+				$.post(OC.filePath('tasks', 'ajax', 'update_property.php'), {id:task.id, type:'location', location:location}, function(jsondata){
+					if(jsondata.status == 'success') {
+						task.location = location;
+						task_container.find('.location').text(location);
+					}
+				});
+			})
+			.appendTo(task_container);
+		return task_container;
+	},
+	filter:function(tag, find_filter) {
+		var tag_text = $(tag).text();
+		var filter = !$(tag).hasClass('active');
+		OC.Tasks.filterUpdate(filter, function(task_container){
+			var found = 0;
+			task_container.find(find_filter).each(function(){
+				if ($(this).text() == tag_text) {
+					$(this).toggleClass('active');
+					found = 1;
+				}
+			});
+			return found;
+		});
+	},
+	filterUpdate:function(filter, find_filter) {
+		var show_count = $('#tasks_list').data('show_count');
+		show_count += filter ? +1 : -1;
+		$('#tasks_list').data('show_count', show_count);
+		$('#tasks_lists .task, #tasks_list .task').each(function(i, task_container){
+			task_container = $(task_container);
+			var task = task_container.data('task');
+			var found = find_filter(task_container);
+			var hide_count = task_container.data('show_count');
+			if (!filter) {
+				hide_count-=found;
+			}
+			else {
+				hide_count+=found;
+			}
+			if (hide_count == show_count) {
+				task_container.show();
+			}
+			else {
+				task_container.hide();
+			}
+			task_container.data('show_count', hide_count);
+		});
+	},
+	order:function(sort, get_property, empty_label) {
+		var tasks = $('#tasks_list .task').not('.clone');
+		tasks.sort(sort);
+		var current = null;
+		tasks.detach();
+		var $tasks = $('#tasks_list').empty();
+		var container = $tasks;
+		tasks.each(function(){
+			if (get_property) {
+				var label = get_property($(this).data('task'));
+				if(label != current) {
+					current = label;
+					container = $('<div>').appendTo($tasks);
+					if (label == '' && empty_label) {
+						label = empty_label;
+					}
+					$('<h1>').text(label).appendTo(container);
+				}
+			}
+			container.append(this);
+		});
+	},
+	setSummary:function(summary_container, task){
+		var summary = $('<a href="index.php?id='+task.id+'">')
+			.text(task.summary)
+			.click(OC.Tasks.summaryClickHandler);
+		summary_container.html(summary);
+	},
+	summaryClickHandler:function(event){
+		event.preventDefault();
+		//event.stopPropagation();
+		var task = $(this).closest('.task').data('task');
+		var summary_container = $(this).parent();
+		var input = $('<input>').val($(this).text()).blur(function(){
+			var old_summary = task.summary;
+			task.summary = $(this).val();
+			OC.Tasks.setSummary(summary_container, task);
+			$.post(OC.filePath('tasks', 'ajax', 'update_property.php'), {id:task.id, type:'summary', summary:task.summary}, function(jsondata){
+				if(jsondata.status != 'success') {
+					task.summary = old_summary;
+					OC.Tasks.setSummary(summary_container, task);
+				}
+			});
+		});
+		summary_container.empty().append(input);
+		input.focus();
+		return false;
+	},
+	dueUpdateHandler:function(){
+		var task = $(this).closest('.task').data('task');
+		var old_due = task.due;
+		var $date = $(this).parent().children('.date');
+		var $time = $(this).parent().children('.time');
+		var date = $date.datepicker('getDate');
+		var time = $time.val().split(':');
+		var due, date_only = false;
+		if (!date){
+			due = false;
+		} else {
+			if (time.length==2){
+				date.setHours(time[0]);
+				date.setMinutes(time[1]);
+			}
+			else {
+				date_only = true;
+			}
+			due = date.getTime()/1000;
+		}
+		$.post(OC.filePath('tasks', 'ajax', 'update_property.php'), {id:task.id, type:'due', due:due, date:date_only?1:0}, function(jsondata){
+			if(jsondata.status != 'success') {
+				task.due = old_due;
+			}
+		});
+	},
+	moreClickHandler:function(event){
+		var $task = $(this).closest('.task'),
+			task = $task.data('task');
+		$task.find('.more').show();
+		$task.find('.task_more').hide();
+		$task.find('.task_less').show();
+		$task.find('div.categories').hide();
+		$task.find('input.categories').show();
+		$task.find('div.location').hide();
+		$task.find('input.location').show();
+	},
+	lessClickHandler:function(event){
+		var $task = $(this).closest('.task'),
+			task = $task.data('task');
+		$task.find('.more').hide();
+		$task.find('.task_more').show();
+		$task.find('.task_less').hide();
+		$task.find('div.categories').show();
+		$task.find('input.categories').hide();
+		$task.find('div.location').show();
+		$task.find('input.location').hide();
+	},
+	complete_task:function() {
+		var $task = $(this).closest('.task'),
+			task = $task.data('task'),
+			checked = $(this).is(':checked');
+		$.post(OC.filePath('tasks', 'ajax', 'update_property.php'), {id:task.id, type:'complete', checked:checked?1:0}, function(jsondata){
+			if(jsondata.status == 'success') {
+				task = jsondata.data;
+				$task.data('task', task)
+				if (task.completed) {
+					$task.addClass('done');
+				}
+				else {
+					$task.removeClass('done');
+				}
+			}
+			else{
+				alert(jsondata.data.message);
+			}
+		}, 'json');
+	},
+	categoriesChanged:function(newcategories){
+		categories = $.map(newcategories, function(v) {return v;});
+		console.log('Task categories changed to: ' + categories);
+		$('input.categories').multiple_autocomplete('option', 'source', categories);
+	},
+	List: {
+		create_list_div:function(category){
+			return $('<div>').text(category)
+				.click(function(){
+					OC.Tasks.filter(this, 'div.categories .tag');
+					$(this).toggleClass('active');
+				});
+		}
+	}
+};
+
+$(document).ready(function(){
+	fillHeight($('#tasks_lists'));
+	fillWindow($('#tasks_list'));
+
+	/*-------------------------------------------------------------------------
+	 * Actions for startup
+	 *-----------------------------------------------------------------------*/
+	$.getJSON(OC.filePath('tasks', 'ajax', 'gettasks.php'), function(jsondata) {
+		var tasks = $('#tasks_list').empty().data('show_count', 0);
+		$(jsondata).each(function(i, task) {
+			tasks.append(OC.Tasks.create_task_div(task));
+		});
+		if( $('#tasks_list div').length > 0 ){
+			$('#tasks_list div').first().addClass('active');
+		}
+		$(categories).each(function(i, category) {
+			$('#tasks_lists .all').after(OC.Tasks.List.create_list_div(category));
+		});
+		$('#tasks_lists .all').click(function(){
+			$('#tasks_lists .active').click();
+		});
+		$('#tasks_lists .done').click(function(){
+			var filter = !$(this).hasClass('active');
+			OC.Tasks.filterUpdate(filter, function(task_container){
+				return task_container.hasClass('done');
+			});
+			$(this).toggleClass('active');
+		});
+		OCCategories.changed = OC.Tasks.categoriesChanged;
+		OCCategories.app = 'calendar';
+	});
+
+	/*-------------------------------------------------------------------------
+	 * Event handlers
+	 *-----------------------------------------------------------------------*/
+	$('#tasks_list div.categories .tag').live('click',function(){
+		OC.Tasks.filter(this, 'div.categories .tag');
+		var tag_text = $(this).text();
+		$('#tasks_lists div:not(".all"):not(".done")').each(function(){
+			if ($(this).text() == tag_text) {
+				$(this).toggleClass('active');
+			}
+		});
+	});
+
+	$('#tasks_list .priority.tag').live('click',function(){
+		OC.Tasks.filter(this, '.priority.tag');
+	});
+
+	$('#tasks_list .location.tag').live('click',function(){
+		OC.Tasks.filter(this, '.location.tag');
+	});
+
+	$('#tasks_order_category').click(function(){
+		var tasks = $('#tasks_list .task').not('.clone');
+		var collection = {};
+		tasks.each(function(i, task) {
+			var categories = $(task).data('task').categories;
+			$(categories).each(function() {
+				if (!collection.hasOwnProperty(this)) {
+					collection[this] = [];
+				}
+				collection[this].push(task);
+				if (categories.length > 1) {
+					task = $(task).clone(true).addClass('clone').get(0);
+				}
+			});
+			if (categories.length == 0) {
+				if (!collection.hasOwnProperty('')) {
+					collection[''] = [];
+				}
+				collection[''].push(task);
+			}
+		});
+		var labels = [];
+		for (var label in collection) {
+			labels.push(label);
+		}
+		labels.sort();
+		tasks.detach();
+		var $tasks = $('#tasks_list').empty();
+		for (var index in labels) {
+			var label = labels[index];
+			var container = $('<div>').appendTo($tasks);
+			if (label == '') {
+				label = t('tasks', 'No category');
+			}
+			$('<h1>').text(label).appendTo(container);
+			container.append(collection[labels[index]]);
+		}
+	});
+
+	$('#tasks_order_due').click(function(){
+		OC.Tasks.order(function(a, b){
+			a = $(a).data('task').due;
+			b = $(b).data('task').due;
+			return OC.Tasks.bool_string_cmp(a, b);
+		});
+	});
+
+	$('#tasks_order_complete').click(function(){
+		OC.Tasks.order(function(a, b){
+			return ($(a).data('task').complete - $(b).data('task').complete) ||
+				OC.Tasks.bool_string_cmp($(a).data('task').completed, $(b).data('task').completed);
+		});
+	});
+
+	$('#tasks_order_location').click(function(){
+		OC.Tasks.order(function(a, b){
+			a = $(a).data('task').location;
+			b = $(b).data('task').location;
+			return OC.Tasks.bool_string_cmp(a, b);
+		});
+	});
+
+	$('#tasks_order_prio').click(function(){
+		OC.Tasks.order(function(a, b){
+			return $(a).data('task').priority
+			     - $(b).data('task').priority;
+		});
+	});
+
+	$('#tasks_order_label').click(function(){
+		OC.Tasks.order(function(a, b){
+			return $(a).data('task').summary.localeCompare(
+			       $(b).data('task').summary);
+		});
+	});
+
+	$('#tasks_delete').live('click',function(){
+		var id = $('#task_details').data('id');
+		$.getJSON('ajax/delete.php',{'id':id},function(jsondata){
+			if(jsondata.status == 'success'){
+				$('#tasks [data-id="'+jsondata.data.id+'"]').remove();
+				$('#task_details').data('id','');
+				$('#task_details').html('');
+			}
+			else{
+				alert(jsondata.data.message);
+			}
+		});
+		return false;
+	});
+
+	$('#tasks_addtask').click(function(){
+		var input = $('#tasks_newtask').val();
+		$.getJSON(OC.filePath('tasks', 'ajax', 'addtask.php'),{text:input},function(jsondata){
+			if(jsondata.status == 'success'){
+				$('#tasks_list').append(OC.Tasks.create_task_div(jsondata.task));
+			}
+			else{
+				alert(jsondata.data.message);
+			}
+		});
+		return false;
+	});
+
+	$('#tasks_addtaskform input[type="submit"]').live('click',function(){
+		$.post('ajax/addtask.php',$('#tasks_addtaskform').serialize(),function(jsondata){
+			if(jsondata.status == 'success'){
+				$('#task_details').data('id',jsondata.data.id);
+				$('#task_details').html(jsondata.data.page);
+				$('#tasks_list').append(OC.Tasks.create_task_div(jsondata.data.task));
+			}
+			else{
+				alert(jsondata.data.message);
+			}
+		}, 'json');
+		return false;
+	});
+
+	$('#tasks_edit').live('click',function(){
+		var id = $('#task_details').data('id');
+		$.getJSON('ajax/edittaskform.php',{'id':id},function(jsondata){
+			if(jsondata.status == 'success'){
+				$('#task_details').html(jsondata.data.page);
+				$('#task_details #categories').multiple_autocomplete({source: categories});
+			}
+			else{
+				alert(jsondata.data.message);
+			}
+		});
+		return false;
+	});
+
+	$('#tasks_edittaskform #percent_complete').live('change',function(event){
+		if ($(event.target).val() == 100){
+			$('#tasks_edittaskform #complete').show();
+		}else{
+			$('#tasks_edittaskform #complete').hide();
+		}
+	});
+
+	$('#tasks_edittaskform input[type="submit"]').live('click',function(){
+		$.post('ajax/edittask.php',$('#tasks_edittaskform').serialize(),function(jsondata){
+			$('.error_msg').remove();
+			$('.error').removeClass('error');
+			if(jsondata.status == 'success'){
+				var id = jsondata.data.id;
+				$('#task_details').data('id',id);
+				$('#task_details').html(jsondata.data.page);
+				var task = jsondata.data.task;
+				$('#tasks .task[data-id='+id+']')
+					.data('task', task)
+					.html(OC.Tasks.create_task_div(task).html());
+			}
+			else{
+				var errors = jsondata.data.errors;
+				for (k in errors){
+					$('#'+k).addClass('error')
+						.after('<span class="error_msg">'+errors[k]+'</span>');
+				}
+				$('.error_msg').effect('highlight', {}, 3000);
+				$('.error').effect('highlight', {}, 3000);
+			}
+		}, 'json');
+		return false;
+	});
+
+	OCCategories.app = 'calendar';
+});
diff --git a/apps/tasks/lib/app.php b/apps/tasks/lib/app.php
new file mode 100644
index 0000000000000000000000000000000000000000..7b908420333f257712ab7e02b0a2868cfca23715
--- /dev/null
+++ b/apps/tasks/lib/app.php
@@ -0,0 +1,187 @@
+<?php
+/**
+ * ownCloud - Calendar
+ *
+ * @author Bart Visscher
+ * @copyright 2011 Bart Visscher bartv@thisnet.nl
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * This class manages our tasks
+ */
+OC_Task_App::$l10n = new OC_L10N('tasks');
+class OC_Task_App {
+	public static $l10n;
+
+	public static function getPriorityOptions()
+	{
+		return array(
+			''  => self::$l10n->t('Unspecified'),
+			'1' => self::$l10n->t('1=highest'),
+			'2' => '2',
+			'3' => '3',
+			'4' => '4',
+			'5' => self::$l10n->t('5=medium'),
+			'6' => '6',
+			'7' => '7',
+			'8' => '8',
+			'9' => self::$l10n->t('9=lowest'),
+		);
+	}
+
+	public static function arrayForJSON($id, $vtodo, $user_timezone)
+	{
+                $task = array( 'id' => $id );
+		$task['summary'] = $vtodo->getAsString('SUMMARY');
+		$task['description'] = $vtodo->getAsString('DESCRIPTION');
+		$task['location'] = $vtodo->getAsString('LOCATION');
+		$task['categories'] = $vtodo->getAsArray('CATEGORIES');
+		$due = $vtodo->DUE;
+		if ($due) {
+			$task['due_date_only'] = $due->getDateType() == Sabre_VObject_Element_DateTime::DATE;
+			$due = $due->getDateTime();
+			$due->setTimezone(new DateTimeZone($user_timezone));
+			$task['due'] = $due->format('U');
+		}
+		else {
+			$task['due'] = false;
+		}
+		$task['priority'] = $vtodo->getAsString('PRIORITY');
+		$completed = $vtodo->COMPLETED;
+		if ($completed) {
+			$completed = $completed->getDateTime();
+			$completed->setTimezone(new DateTimeZone($user_timezone));
+			$task['completed'] = $completed->format('Y-m-d H:i:s');
+		}
+		else {
+			$task['completed'] = false;
+		}
+		$task['complete'] = $vtodo->getAsString('PERCENT-COMPLETE');
+		return $task;
+	}
+
+	public static function validateRequest($request)
+	{
+		$errors = array();
+		if($request['summary'] == ''){
+			$errors['summary'] = self::$l10n->t('Empty Summary');
+		}
+
+		try {
+			$timezone = OCP\Config::getUserValue(OCP\User::getUser(), "calendar", "timezone", "Europe/London");
+			$timezone = new DateTimeZone($timezone);
+			new DateTime($request['due'], $timezone);
+		} catch (Exception $e) {
+			$errors['due'] = self::$l10n->t('Invalid date/time');
+		}
+
+		if ($request['percent_complete'] < 0 || $request['percent_complete'] > 100){
+			$errors['percent_complete'] = self::$l10n->t('Invalid percent complete');
+		}
+		if ($request['percent_complete'] == 100 && !empty($request['completed'])){
+			try {
+				$timezone = OCP\Config::getUserValue(OCP\User::getUser(), "calendar", "timezone", "Europe/London");
+				$timezone = new DateTimeZone($timezone);
+				new DateTime($request['completed'], $timezone);
+			} catch (Exception $e) {
+				$errors['completed'] = self::$l10n->t('Invalid date/time');
+			}
+		}
+
+		$priority_options = self::getPriorityOptions();
+		if (!in_array($request['priority'], array_keys($priority_options))) {
+			$errors['priority'] = self::$l10n->t('Invalid priority');
+		}
+		return $errors;
+	}
+
+	public static function createVCalendarFromRequest($request)
+	{
+		$vcalendar = new OC_VObject('VCALENDAR');
+		$vcalendar->add('PRODID', 'ownCloud Calendar');
+		$vcalendar->add('VERSION', '2.0');
+
+		$vtodo = new OC_VObject('VTODO');
+		$vcalendar->add($vtodo);
+
+		$vtodo->setDateTime('CREATED', 'now', Sabre_VObject_Element_DateTime::UTC);
+
+		$vtodo->setUID();
+		return self::updateVCalendarFromRequest($request, $vcalendar);
+	}
+
+	public static function updateVCalendarFromRequest($request, $vcalendar)
+	{
+		$summary = $request['summary'];
+		$categories = $request["categories"];
+		$priority = $request['priority'];
+		$percent_complete = $request['percent_complete'];
+		$completed = $request['completed'];
+		$location = $request['location'];
+		$due = $request['due'];
+		$description = $request['description'];
+
+		$vtodo = $vcalendar->VTODO;
+
+		$vtodo->setDateTime('LAST-MODIFIED', 'now', Sabre_VObject_Element_DateTime::UTC);
+		$vtodo->setDateTime('DTSTAMP', 'now', Sabre_VObject_Element_DateTime::UTC);
+		$vtodo->setString('SUMMARY', $summary);
+
+		$vtodo->setString('LOCATION', $location);
+		$vtodo->setString('DESCRIPTION', $description);
+		$vtodo->setString('CATEGORIES', $categories);
+		$vtodo->setString('PRIORITY', $priority);
+
+		if ($due) {
+			$timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+			$timezone = new DateTimeZone($timezone);
+			$due = new DateTime($due, $timezone);
+			$vtodo->setDateTime('DUE', $due);
+		} else {
+			unset($vtodo->DUE);
+		}
+
+		self::setComplete($vtodo, $percent_complete, $completed);
+
+		return $vcalendar;
+	}
+
+	public static function setComplete($vtodo, $percent_complete, $completed)
+	{
+		if (!empty($percent_complete)) {
+			$vtodo->setString('PERCENT-COMPLETE', $percent_complete);
+		}else{
+			$vtodo->__unset('PERCENT-COMPLETE');
+		}
+
+		if ($percent_complete == 100){
+			if (!$completed){
+				$completed = 'now';
+			}
+		} else {
+			$completed = null;
+		}
+		if ($completed) {
+			$timezone = OCP\Config::getUserValue(OCP\User::getUser(), 'calendar', 'timezone', date_default_timezone_get());
+			$timezone = new DateTimeZone($timezone);
+			$completed = new DateTime($completed, $timezone);
+			$vtodo->setDateTime('COMPLETED', $completed);
+		} else {
+			unset($vtodo->COMPLETED);
+		}
+	}
+}
diff --git a/apps/tasks/lib/vtodo.php b/apps/tasks/lib/vtodo.php
new file mode 100644
index 0000000000000000000000000000000000000000..dc2bfaf964cfe691b938f95d19317dac419c002a
--- /dev/null
+++ b/apps/tasks/lib/vtodo.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * ownCloud - Calendar
+ *
+ * @author Bart Visscher
+ * @copyright 2011 Bart Visscher bartv@thisnet.nl
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * This class manages our tasks
+ */
+class OC_Task_VTodo extends OC_Calendar_Object{
+}
diff --git a/apps/tasks/templates/part.addtaskform.php b/apps/tasks/templates/part.addtaskform.php
new file mode 100644
index 0000000000000000000000000000000000000000..0fad5592aa7207934ad5ae9a2267bb0e2f362c38
--- /dev/null
+++ b/apps/tasks/templates/part.addtaskform.php
@@ -0,0 +1,15 @@
+<form id="tasks_addtaskform">
+	<?php if(count($_['calendars'])==1): ?>
+		<input type="hidden" name="id" value="<?php echo $_['calendars'][0]['id']; ?>">
+	<?php else: ?>
+		<label for="id"><?php echo $l->t('Calendar'); ?></label>
+		<select name="id" size="1">
+			<?php foreach($_['calendars'] as $calendar): ?>
+				<option value="<?php echo $calendar['id']; ?>"><?php echo $calendar['displayname']; ?></option>
+			<?php endforeach; ?>
+		</select>
+		<br>
+	<?php endif; ?>
+	<?php echo $this->inc('part.taskform'); ?>
+	<input type="submit" name="submit" value="<?php echo $l->t('Create Task'); ?>">
+</form>
diff --git a/apps/tasks/templates/part.details.php b/apps/tasks/templates/part.details.php
new file mode 100644
index 0000000000000000000000000000000000000000..89636b6e7626d91d3e2d39738d2b3dc096b94a0e
--- /dev/null
+++ b/apps/tasks/templates/part.details.php
@@ -0,0 +1,42 @@
+<?php if(isset($_['details']->SUMMARY)): ?>
+<table>
+<?php
+echo $this->inc('part.property', array('label' => $l->t('Summary'), 'property' => $_['details']->SUMMARY));
+if(isset($_['details']->LOCATION)):
+	echo $this->inc('part.property', array('label' => $l->t('Location'), 'property' => $_['details']->LOCATION));
+endif;
+if(isset($_['details']->CATEGORIES)):
+	echo $this->inc('part.property', array('label' => $l->t('Categories'), 'property' => $_['details']->CATEGORIES));
+endif;
+if(isset($_['details']->DUE)):
+	echo $this->inc('part.property', array('label' => $l->t('Due'), 'property' => $_['details']->DUE[0]));
+endif;
+if(isset($_['details']->PRIORITY)):
+	echo $this->inc('part.property', array('label' => $l->t('Priority'), 'property' => $_['details']->PRIORITY[0], 'options' => $_['priority_options']));
+endif;
+if($_['details']->__isset('PERCENT-COMPLETE') || isset($_['details']->COMPLETED)):
+?>
+<tr>
+	<th>
+		<?php echo $l->t('Complete') ?>
+	</th>
+	<td>
+<?php if($_['details']->__isset('PERCENT-COMPLETE')):
+		echo $_['details']->__get('PERCENT-COMPLETE')->value.' % ';
+	endif;
+	if(isset($_['details']->COMPLETED)):
+		echo $l->t('on '). $l->l('datetime', $_['details']->COMPLETED[0]->getDateTime());
+	endif;
+	echo '</tr>';
+endif;
+if(isset($_['details']->DESCRIPTION)):
+	echo $this->inc('part.property', array('label' => $l->t('Description'), 'property' => $_['details']->DESCRIPTION));
+endif; ?>
+</table>
+<form>
+	<input type="button" id="tasks_delete" value="<?php echo $l->t('Delete');?>">
+	<input type="button" id="tasks_edit" value="<?php echo $l->t('Edit');?>">
+</form>
+<?php else: ?>
+<?php //var_dump($_['details']); ?>
+<?php endif ?>
diff --git a/apps/tasks/templates/part.edittaskform.php b/apps/tasks/templates/part.edittaskform.php
new file mode 100644
index 0000000000000000000000000000000000000000..fe123f07ac6d3699799f4bf11513ed0520fa3856
--- /dev/null
+++ b/apps/tasks/templates/part.edittaskform.php
@@ -0,0 +1,5 @@
+<form id="tasks_edittaskform">
+	<input type="hidden" name="id" value="<?php echo $_['id']; ?>">
+	<?php echo $this->inc('part.taskform'); ?>
+	<input type="submit" name="submit" value="<?php echo $l->t('Update Task'); ?>">
+</form>
diff --git a/apps/tasks/templates/part.property.php b/apps/tasks/templates/part.property.php
new file mode 100644
index 0000000000000000000000000000000000000000..591fd363e6f62c02d8f5d2fc2087fd2c6b4d9802
--- /dev/null
+++ b/apps/tasks/templates/part.property.php
@@ -0,0 +1,22 @@
+<tr>
+	<th>
+		<?php echo $_['label'] ?>
+	</th>
+	<td>
+		<?php
+			switch (get_class($_['property']))
+			{
+				case 'Sabre_VObject_Element_DateTime':
+					echo $l->l('datetime', $_['property']->getDateTime());
+					break;
+				default:
+					$value = $_['property']->value;
+					if (isset($_['options']))
+					{
+						$value = $_['options'][$value];
+					}
+					echo nl2br($value);
+			}
+		?>
+	</td>
+</tr>
diff --git a/apps/tasks/templates/part.taskform.php b/apps/tasks/templates/part.taskform.php
new file mode 100644
index 0000000000000000000000000000000000000000..da984d830bd646c96470cceb7b604b4c9fecd441
--- /dev/null
+++ b/apps/tasks/templates/part.taskform.php
@@ -0,0 +1,36 @@
+	<label for="summary"><?php echo $l->t('Summary'); ?></label>
+	<input type="text" id="summary" name="summary" placeholder="<?php echo $l->t('Summary of the task');?>" value="<?php echo isset($_['details']->SUMMARY) ? $_['details']->SUMMARY[0]->value : '' ?>">
+	<br>
+	<label for="location"><?php echo $l->t('Location'); ?></label>
+	<input type="text" id="location" name="location" placeholder="<?php echo $l->t('Location of the task');?>" value="<?php echo isset($_['details']->LOCATION) ? $_['details']->LOCATION[0]->value : '' ?>">
+	<br>
+	<label for="categories"><?php echo $l->t('Categories'); ?></label>
+	<input id="categories" name="categories" type="text" placeholder="<?php echo $l->t('Separate categories with commas'); ?>" value="<?php echo isset($_['categories']) ? htmlspecialchars($_['categories']) : '' ?>">
+	<a class="action edit" onclick="$(this).tipsy('hide');OCCategories.edit();" title="<?php echo $l->t('Edit categories'); ?>"><img alt="<?php echo $l->t('Edit categories'); ?>" src="<?php echo image_path('core','actions/rename.svg')?>" class="svg action" style="width: 16px; height: 16px;"></a>
+	<br>
+	<label for="due"><?php echo $l->t('Due'); ?></label>
+	<input type="text" id="due" name="due" placeholder="<?php echo $l->t('Due date') ?>" value="<?php echo isset($_['details']->DUE) ? $l->l('datetime', $_['details']->DUE[0]->getDateTime()) : '' ?>">
+	<br>
+	<select name="percent_complete" id="percent_complete">
+		<?php
+		foreach($_['percent_options'] as $percent){
+			echo '<option value="' . $percent . '"' . (($_['details']->__get('PERCENT-COMPLETE') && $percent == $_['details']->__get('PERCENT-COMPLETE')->value) ? ' selected="selected"' : '') . '>' . $percent . ' %</option>';
+		}
+		?>
+	</select>
+	<label for="percent_complete"><?php echo $l->t('Complete'); ?></label>
+	<span id="complete"<?php echo ($_['details']->__get('PERCENT-COMPLETE') && $_['details']->__get('PERCENT-COMPLETE')->value == 100) ? '' : ' style="display:none;"' ?>><label for="completed"><?php echo $l->t('completed on'); ?></label>
+	<input type="text" id="completed" name="completed" value="<?php echo isset($_['details']->COMPLETED) ? $l->l('datetime', $_['details']->COMPLETED[0]->getDateTime()) : '' ?>"></span>
+	<br>
+	<label for="priority"><?php echo $l->t('Priority'); ?></label>
+	<select name="priority">
+		<?php
+		foreach($_['priority_options'] as $priority => $label){
+			echo '<option value="' . $priority . '"' . ((isset($_['details']->PRIORITY) && $priority == $_['details']->PRIORITY->value) ? ' selected="selected"' : '') . '>' . $label . '</option>';
+		}
+		?>
+	</select>
+	<br>
+	<label for="description"><?php echo $l->t('Description'); ?></label><br>
+	<textarea placeholder="<?php echo $l->t('Description of the task');?>" name="description"><?php echo isset($_['details']->DESCRIPTION) ? $_['details']->DESCRIPTION[0]->value : '' ?></textarea>
+	<br>
diff --git a/apps/tasks/templates/part.tasks.php b/apps/tasks/templates/part.tasks.php
new file mode 100644
index 0000000000000000000000000000000000000000..50be1cd6beda284b5df9748d65f7035fadb38cef
--- /dev/null
+++ b/apps/tasks/templates/part.tasks.php
@@ -0,0 +1,3 @@
+<?php foreach( $_['tasks'] as $task ): ?>
+	<li data-id="<?php echo $task['id']; ?>"><a href="index.php?id=<?php echo $task['id']; ?>"><?php echo $task['name']; ?></a> </li>
+<?php endforeach; ?>
diff --git a/apps/tasks/templates/tasks.php b/apps/tasks/templates/tasks.php
new file mode 100644
index 0000000000000000000000000000000000000000..9869840079762d3600bb3c833fe405e7186bf61c
--- /dev/null
+++ b/apps/tasks/templates/tasks.php
@@ -0,0 +1,31 @@
+<div id="controls">
+	<input type="text" id="tasks_newtask">
+	<input type="button" id="tasks_addtask" value="<?php echo $l->t('Add Task'); ?>">
+	<input type="button" id="tasks_order_due" value="<?php echo $l->t('Order Due'); ?>">
+	<input type="button" id="tasks_order_category" value="<?php echo $l->t('Order Category'); ?>">
+	<input type="button" id="tasks_order_complete" value="<?php echo $l->t('Order Complete'); ?>">
+	<input type="button" id="tasks_order_location" value="<?php echo $l->t('Order Location'); ?>">
+	<input type="button" id="tasks_order_prio" value="<?php echo $l->t('Order Priority'); ?>">
+	<input type="button" id="tasks_order_label" value="<?php echo $l->t('Order Label'); ?>">
+</div>
+<div id="tasks_lists" class="leftcontent">
+	<div class="all">All</div>
+	<div class="done">Done</div>
+</div>
+<div id="tasks_list" class="rightcontent">
+<p class="loading"><?php echo $l->t('Loading tasks...') ?></p>
+</div>
+<p id="task_actions_template" class="task_actions">
+	<!-- span class="task_star">
+		<img title="<?php echo $l->t('Important') ?>" src="<?php echo image_path('core', 'actions/add.svg') ?>" class="svg"><?php echo $l->t('Important') ?>
+	</span -->
+	<span class="task_more">
+		<img title="<?php echo $l->t('More') ?>" src="<?php echo image_path('core', 'actions/triangle-s.svg') ?>" class="svg"><?php echo $l->t('More') ?>
+	</span>
+	<span class="task_less">
+		<img title="<?php echo $l->t('Less') ?>" src="<?php echo image_path('core', 'actions/triangle-n.svg') ?>" class="svg"><?php echo $l->t('Less') ?>
+	</span>
+</p>
+<script type='text/javascript'>
+var categories = <?php echo json_encode($_['categories']); ?>;
+</script>
diff --git a/core/img/actions/triangle-n.png b/core/img/actions/triangle-n.png
new file mode 100644
index 0000000000000000000000000000000000000000..b0d7183caabd7e536b1b543c731f119aa78fdbac
Binary files /dev/null and b/core/img/actions/triangle-n.png differ
diff --git a/core/img/actions/triangle-n.svg b/core/img/actions/triangle-n.svg
new file mode 100644
index 0000000000000000000000000000000000000000..35658631111caa6694338f4bff7dbac7189a88cf
--- /dev/null
+++ b/core/img/actions/triangle-n.svg
@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16px"
+   height="16px"
+   id="svg6077"
+   version="1.1"
+   inkscape:version="0.48.3.1 r9886"
+   sodipodi:docname="triangle-n.svg"
+   inkscape:export-filename="triangle-n.png"
+   inkscape:export-xdpi="90"
+   inkscape:export-ydpi="90">
+  <defs
+     id="defs6079">
+    <linearGradient
+       inkscape:collect="always"
+       xlink:href="#linearGradient3587-6-5-3-4-5-4-0-1"
+       id="linearGradient7308"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(0,-0.54681372,-0.39376081,0,14.87048,24.63452)"
+       x1="34.992828"
+       y1="0.94087797"
+       x2="34.992828"
+       y2="33.955856" />
+    <linearGradient
+       id="linearGradient3587-6-5-3-4-5-4-0-1">
+      <stop
+         offset="0"
+         style="stop-color:#000000;stop-opacity:1"
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+      <stop
+         offset="1"
+         style="stop-color:#363636;stop-opacity:1"
+         id="stop3591-7-4-73-7-9-86-9-3" />
+    </linearGradient>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="22.197802"
+     inkscape:cx="-6.9113863"
+     inkscape:cy="8"
+     inkscape:current-layer="layer1"
+     showgrid="true"
+     inkscape:grid-bbox="true"
+     inkscape:document-units="px"
+     inkscape:window-width="1920"
+     inkscape:window-height="1025"
+     inkscape:window-x="-2"
+     inkscape:window-y="-3"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata6082">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
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+     inkscape:label="Layer 1"
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+       inkscape:connector-curvature="0"
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+</svg>