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	diff --git a/plugins/tasklist/skins/larry/sprites.png b/plugins/tasklist/skins/larry/sprites.png
	index 5224f6f7..b20b2db0 100644
	Binary files a/plugins/tasklist/skins/larry/sprites.png and b/plugins/tasklist/skins/larry/sprites.png differ
	diff --git a/plugins/tasklist/skins/larry/tasklist.css b/plugins/tasklist/skins/larry/tasklist.css
	index caa50676..70ab8da9 100644
	--- a/plugins/tasklist/skins/larry/tasklist.css
	+++ b/plugins/tasklist/skins/larry/tasklist.css
	@@ -1,851 +1,885 @@
	/**
	* Roundcube Taklist plugin styles for skin "Larry"
	*
	* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
	* Screendesign by FLINT / Büro für Gestaltung, bueroflint.com
	*
	* The contents are subject to the Creative Commons Attribution-ShareAlike
	* License. It is allowed to copy, distribute, transmit and to adapt the work
	* by keeping credits to the original autors in the README file.
	* See http://creativecommons.org/licenses/by-sa/3.0/ for details.
	*/

	#taskbar a.button-tasklist span.button-inner {
	background-image: url(buttons.png);
	background-position: 0 0;
	}

	#taskbar a.button-tasklist:hover span.button-inner,
	#taskbar a.button-tasklist.button-selected span.button-inner {
	background-position: 0 -26px;
	}

	ul.toolbarmenu li span.icon.taskadd {
	background-image: url(buttons.png);
	background-position: -4px -90px;
	}

	div.uidialog {
	display: none;
	}

	body.attachmentwin #mainscreen {
	top: 60px;
	}

	body.attachmentwin #topnav .topright {
	margin-top: 20px;
	}

	#sidebar {
	position: absolute;
	top: 0;
	left: 0;
	bottom: 0;
	width: 240px;
	}

	.tasklistview #searchmenulink {
	width: 15px;
	}

	#tagsbox {
	position: absolute;
	top: 42px;
	left: 0;
	width: 100%;
	height: 242px;
	}

	#tasklistsbox {
	position: absolute;
	top: 300px;
	left: 0;
	width: 100%;
	bottom: 0px;
	}

	#taskselector {
	- margin: -4px 0 0;
	+ margin: -4px 40px 0 0;
	padding: 0;
	}

	#taskselector li {
	display: inline-block;
	position: relative;
	font-size: 90%;
	padding-right: 0.3em;
	}

	#tagslist li,
	#taskselector li a {
	display: inline-block;
	color: #004458;
	min-width: 4em;
	padding: 0.2em 0.6em 0.3em 0.6em;
	text-align: center;
	text-decoration: none;
	border: 1px solid #eee;
	border-color: transparent;
	}

	#taskselector li:first-child {
	border-top: 0;
	border-radius: 4px 4px 0 0;
	}

	#taskselector li:last-child {
	border-bottom: 0;
	border-radius: 0 0 4px 4px;
	}

	#taskselector li.overdue a {
	color: #b72a2a;
	font-weight: bold;
	}

	#taskselector li.inactive a {
	color: #97b3bf;
	}

	#tagslist li.selected,
	#taskselector li.selected a {
	color: #fff;
	background: #005d76;
	background: -moz-linear-gradient(top, #005d76 0%, #004558 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#005d76), color-stop(100%,#004558));
	background: -o-linear-gradient(top, #005d76 0%, #004558 100%);
	background: -ms-linear-gradient(top, #005d76 0%, #004558 100%);
	background: linear-gradient(top, #005d76 0%, #004558 100%);
	box-shadow: inset 0 1px 1px 0 #003645;
	-o-box-shadow: inset 0 1px 1px 0 #003645;
	-webkit-box-shadow: inset 0 1px 1px 0 #003645;
	-moz-box-shadow: inset 0 1px 1px 0 #003645;
	border-color: #003645;
	border-radius: 9px;
	text-shadow: none;
	outline: none;
	}

	#taskselector li .count {
	display: none;
	position: absolute;
	top: -18px;
	right: 5px;
	min-width: 1.8em;
	padding: 2px 4px;
	background: #004558;
	background: -moz-linear-gradient(top, #005d76 0%, #004558 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#005d76), color-stop(100%,#004558));
	background: -o-linear-gradient(top, #005d76 0%, #004558 100%);
	background: -ms-linear-gradient(top, #005d76 0%, #004558 100%);
	background: linear-gradient(top, #005d76 0%, #004558 100%);
	box-shadow: 0 1px 2px 0 rgba(24,24,24,0.6);
	color: #fff;
	border-radius: 3px;
	text-align: center;
	font-weight: bold;
	font-size: 80%;
	text-shadow: none;
	}

	#taskselector li .count:after {
	content: "";
	position: absolute;
	bottom: -5px;
	left: 50%;
	margin-left: -5px;
	border-style: solid;
	border-width: 5px 5px 0;
	border-color: #004558 transparent;
	/* reduce the damage in FF3.0 */
	display: block;
	width: 0;
	}

	#taskselector li.overdue .count {
	background: #ff3800;
	}

	#taskselector li.overdue .count:after {
	border-color: #ff3800 transparent;
	}

	#tagslist {
	padding: 0;
	margin: 6px;
	list-style: none;
	}

	#tagslist li {
	display: inline-block;
	color: #004458;
	margin-right: 0.5em;
	margin-bottom: 0.4em;
	min-width: 1.2em;
	cursor: pointer;
	}

	#tasklists li {
	margin: 0;
	height: 20px;
	padding: 6px 8px 2px;
	display: block;
	position: relative;
	white-space: nowrap;
	}

	#tasklists li.virtual {
	padding-top: 4px;
	height: 16px;
	}

	#tasklists li label {
	display: block;
	}

	#tasklists li span.listname {
	display: block;
	cursor: default;
	padding-bottom: 2px;
	padding-right: 30px;
	margin-right: 20px;
	color: #004458;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	background: url(sprites.png) right 20px no-repeat;
	}

	#tasklists li span.handle {
	display: none;
	}

	#tasklists li.selected span.listname {
	font-weight: bold;
	}

	#tasklists li.readonly span.listname {
	background-position: right -142px;
	}

	#tasklists li.other span.listname {
	background-position: right -160px;
	}

	#tasklists li.other.readonly span.listname {
	background-position: right -178px;
	}

	#tasklists li.shared span.listname {
	background-position: right -196px;
	}

	#tasklists li.shared.readonly span.listname {
	background-position: right -214px;
	}

	#tasklists li.virtual span.listname {
	color: #aaa;
	}

	#tasklists li input {
	position: absolute;
	top: 5px;
	right: 5px;
	}

	#mainview-right {
	position: absolute;
	top: 0;
	left: 256px;
	right: 0;
	bottom: 0;
	}

	#taskstoolbar {
	position: absolute;
	top: -6px;
	left: 0;
	width: 100%;
	height: 40px;
	white-space: nowrap;
	}

	#taskstoolbar a.button.newtask {
	background-image: url(buttons.png);
	background-position: center -53px;
	}

	#quickaddbox {
	position: absolute;
	top: 2px;
	left: 0;
	width: 60%;
	height: 32px;
	white-space: nowrap;
	}

	#quickaddinput {
	width: 85%;
	margin: 0;
	padding: 3px 8px;
	height: 18px;
	background: #f1f1f1;
	background: rgba(255, 255, 255, 0.7);
	border-color: #a3a3a3;
	font-weight: bold;
	}

	#quickaddbox .button {
	margin-left: 5px;
	padding: 3px 10px;
	font-weight: bold;
	}

	#tasksview {
	position: absolute;
	top: 42px;
	left: 0;
	right: 0;
	bottom: 0;
	padding-bottom: 28px;
	background: rgba(255, 255, 255, 0.2);
	overflow: visible;
	}

	#message.statusbar {
	border-top: 1px solid #c3c3c3;
	}

	#tasksview .scroller {
	position: absolute;
	left: 0;
	top: 35px;
	width: 100%;
	bottom: 28px;
	overflow: auto;
	}

	#tasksview .buttonbar {
	color: #777;
	background: #eee;
	background: -moz-linear-gradient(top, #eee 0%, #dfdfdf 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#eee), color-stop(100%,#dfdfdf));
	background: -o-linear-gradient(top, #eee 0%, #dfdfdf 100%);
	background: -ms-linear-gradient(top, #eee 0%, #dfdfdf 100%);
	background: linear-gradient(top, #eee 0%, #dfdfdf 100%);
	border-bottom: 1px solid #ccc;
	+ position: relative;
	+}
	+
	+#tasksview .buttonbar .buttonbar-right {
	+ position: absolute;
	+ top: 6px;
	+ right: 8px;
	+}
	+
	+.buttonbar-right .listmenu {
	+ display: inline-block;
	+ cursor: pointer;
	+}
	+
	+.buttonbar-right .listmenu .inner {
	+ display: inline-block;
	+ height: 18px;
	+ width: 20px;
	+ padding: 0;
	+ background: url(sprites.png) 0 -237px no-repeat;
	+ text-indent: -5000px;
	}

	#thelist {
	padding: 0;
	margin: 1em;
	list-style: none;
	}

	#listmessagebox {
	display: none;
	font-size: 14px;
	color: #666;
	margin: 1.5em;
	text-shadow: 0px 1px 1px #fff;
	text-align:center;
	}

	.taskitem {
	position: relative;
	display: block;
	margin-bottom: 3px;
	}

	.taskitem.dragging {
	opacity: 0.5;
	}

	.taskitem .childtasks {
	position: relative;
	padding: 0;
	margin: 3px 0 0 20px;
	list-style: none;
	}

	.taskitem .childtoggle {
	display: none;
	position: absolute;
	top: 4px;
	left: -5px;
	padding: 2px;
	font-size: 10px;
	color: #727272;
	cursor: pointer;

	width: 14px;
	height: 14px;
	background: url(sprites.png) -2px -80px no-repeat;
	text-indent: -1000px;
	overflow: hidden;
	}

	.taskitem .childtoggle.collapsed {
	background-position: -18px -81px;
	}

	.taskhead {
	position: relative;
	margin-left: 14px;
	padding: 4px 5px 3px 5px;
	border: 1px solid #fff;
	border-radius: 5px;
	background: #fff;
	-webkit-box-shadow: 0 1px 1px 0 rgba(50, 50, 50, 0.5);
	-moz-box-shadow: 0 1px 1px 0 rgba(50, 50, 50, 0.5);
	box-shadow: 0 1px 1px 0 rgba(50, 50, 50, 0.5);
	padding-right: 26em;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	cursor: default;
	}

	.taskhead.droptarget {
	border-color: #4787b1;
	box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-moz-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-webkit-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-o-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	}

	.taskhead .complete {
	margin: -1px 1em 0 0;
	}

	.taskhead .title {
	font-size: 12px;
	}

	.taskhead .flagged {
	display: inline-block;
	visibility: hidden;
	width: 16px;
	height: 16px;
	background: url(sprites.png) -2px -3px no-repeat;
	margin: -3px 1em 0 0;
	vertical-align: middle;
	cursor: pointer;
	}

	.taskhead:hover .flagged {
	visibility: visible;
	}

	.taskhead.flagged .flagged {
	visibility: visible;
	background-position: -2px -23px;
	}

	.taskhead .tags {
	display: block;
	position: absolute;
	top: 3px;
	right: 10em;
	max-width: 14em;
	height: 16px;
	overflow: hidden;
	padding-top: 1px;
	text-align: right;
	}

	.taskhead .tags .tag {
	font-size: 85%;
	background: #d9ecf4;
	border: 1px solid #c2dae5;
	border-radius: 4px;
	padding: 1px 7px;
	margin-right: 3px;
	}

	.taskhead .date {
	position: absolute;
	top: 4px;
	right: 30px;
	text-align: right;
	cursor: pointer;
	}

	.taskhead.nodate .date {
	color: #ddd;
	}

	.taskhead.overdue .date {
	color: #d00;
	}

	.taskhead.nodate:hover .date {
	color: #999;
	}

	.taskhead .date input {
	padding: 1px 2px;
	border: 1px solid #ddd;
	-webkit-box-shadow: none;
	-moz-box-shadow: none;
	box-shadow: none;
	outline: none;
	text-align: right;
	width: 6em;
	font-size: 11px;
	}

	.taskhead .actions,
	.taskhead .delete {
	display: block;
	visibility: hidden;
	position: absolute;
	top: 3px;
	right: 6px;
	width: 18px;
	height: 18px;
	background: url(sprites.png) 0 -80px no-repeat;
	text-indent: -1000px;
	overflow: hidden;
	cursor: pointer;
	}

	.taskhead .delete {
	background-position: 0 -40px;
	}

	.taskhead:hover .actions,
	.taskhead:hover .delete {
	visibility: visible;
	}

	.taskhead.complete {
	opacity: 0.6;
	}

	.taskhead.complete .title {
	text-decoration: line-through;
	}

	.taskhead .progressbar {
	position: absolute;
	bottom: 1px;
	left: 6px;
	right: 6px;
	height: 2px;
	}

	.taskhead.complete .progressbar {
	display: none;
	}

	.taskhead .progressvalue {
	height: 1px;
	background: rgba(1, 124, 180, 0.2);
	border-top: 1px solid #219de6;
	}

	-ul.toolbarmenu li span.add {
	+ul.toolbarmenu li span.add,
	+ul.toolbarmenu li span.expand,
	+ul.toolbarmenu li span.collapse {
	background-image: url(sprites.png);
	+}
	+
	+ul.toolbarmenu li span.add {
	background-position: 0 -100px;
	}

	+ul.toolbarmenu li span.expand {
	+ background-position: 0 -258px;
	+}
	+
	+ul.toolbarmenu li span.collapse {
	+ background-position: 0 -280px;
	+}
	+
	ul.toolbarmenu li span.delete {
	background-position: 0 -1508px;
	}

	.taskitem-draghelper {
	/*
	width: 32px;
	height: 26px;
	*/
	background: #444;
	border: 1px solid #555;
	border-radius: 4px;
	box-shadow: 0 2px 6px 0 #333;
	-moz-box-shadow: 0 2px 6px 0 #333;
	-webkit-box-shadow: 0 2px 6px 0 #333;
	-o-box-shadow: 0 2px 6px 0 #333;
	z-index: 5000;
	padding: 2px 10px;
	font-size: 20px;
	color: #ccc;
	opacity: 0.92;
	filter: alpha(opacity=90);
	text-shadow: 0px 1px 1px #333;
	}

	#rootdroppable {
	display: none;
	position: absolute;
	top: 36px;
	left: 1em;
	right: 1em;
	height: 5px;
	background: #ddd;
	border-radius: 3px;
	}

	#rootdroppable.droptarget {
	background: #4787b1;
	box-shadow: 0 0 2px 1px rgba(71,135,177, 0.9);
	-moz-box-shadow: 0 0 2px 1px rgba(71,135,177, 0.9);
	-webkit-box-shadow: 0 0 2px 1px rgba(71,135,177, 0.9);
	-o-box-shadow: 0 0 2px 1px rgba(71,135,177, 0.9);

	}

	/* task edit form */

	#taskedit,
	#taskshow {
	display:none;
	}

	#taskedit {
	position: relative;
	top: -1.5em;
	padding: 0.5em 0.1em;
	margin: 0 -0.2em;
	}

	#taskshow h2 {
	margin-top: -0.5em;
	}

	#taskshow label {
	color: #999;
	}

	#task-parent-title {
	position: relative;
	top: -0.6em;
	}

	a.morelink {
	font-size: 90%;
	color: #0069a6;
	text-decoration: none;
	outline: none;
	}

	a.morelink:hover {
	text-decoration: underline;
	}

	#taskedit .ui-tabs-panel {
	min-height: 24em;
	}

	#taskeditform input.text,
	#taskeditform textarea {
	width: 97%;
	}

	#taskeditform .formbuttons {
	margin: 0.5em 0;
	}

	#taskedit-attachments {
	margin: 0.6em 0;
	}

	#taskedit-attachments ul li {
	display: block;
	color: #333;
	font-weight: bold;
	padding: 8px 4px 3px 30px;
	text-shadow: 0px 1px 1px #fff;
	text-decoration: none;
	white-space: nowrap;
	}

	#taskedit-attachments ul li a.file {
	padding: 0;
	}

	#taskedit-attachments-form {
	margin-top: 1em;
	padding-top: 0.8em;
	border-top: 2px solid #fafafa;
	}

	div.form-section {
	position: relative;
	margin-top: 0.2em;
	margin-bottom: 0.8em;
	}

	.form-section label {
	display: inline-block;
	min-width: 7em;
	padding-right: 0.5em;
	margin-bottom: 0.3em;
	}

	label.block {
	display: block;
	margin-bottom: 0.3em;
	}

	#taskedit-completeness-slider {
	display: inline-block;
	margin-left: 2em;
	width: 30em;
	height: 0.8em;
	border: 1px solid #ccc;
	}

	#taskedit-tagline {
	width: 97%;
	}

	#taskedit .droptarget {
	background-image: url(../../../../skins/larry/images/filedrop.png) !important;
	background-position: center bottom !important;
	background-repeat: no-repeat !important;
	}

	#taskedit .droptarget.hover,
	#taskedit .droptarget.active {
	border-color: #019bc6;
	box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	-moz-box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	-webkit-box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	-o-box-shadow: 0 0 3px 2px rgba(71,135,177, 0.5);
	}

	#taskedit .droptarget.hover {
	background-color: #d9ecf4;
	box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-moz-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-webkit-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	-o-box-shadow: 0 0 5px 2px rgba(71,135,177, 0.9);
	}

	#task-attachments .attachmentslist li {
	float: left;
	margin-right: 1em;
	}

	#task-attachments .attachmentslist li a {
	outline: none;
	}


	/**
	* Styles of the tagedit inputsforms
	*/
	.tagedit-list {
	width: 100%;
	margin: 0;
	padding: 4px 4px 0 5px;
	overflow: auto;
	min-height: 26px;
	background: #fff;
	border: 1px solid #b2b2b2;
	border-radius: 4px;
	box-shadow: inset 0 0 2px 1px rgba(0,0,0, 0.1);
	-moz-box-shadow: inset 0 0 2px 1px rgba(0,0,0, 0.1);
	-webkit-box-shadow: inset 0 0 2px 1px rgba(0,0,0, 0.1);
	-o-box-shadow: inset 0 0 2px 1px rgba(0,0,0, 0.1);
	}
	.tagedit-list li.tagedit-listelement {
	list-style-type: none;
	float: left;
	margin: 0 4px 4px 0;
	padding: 0;
	}

	/* New Item input */
	.tagedit-list li.tagedit-listelement-new input {
	border: 0;
	height: 100%;
	padding: 4px 1px;
	width: 15px;
	background: #fff;
	border-radius: 0;
	box-shadow: none;
	-moz-box-shadow: none;
	-webkit-box-shadow: none;
	-o-box-shadow: none;
	}
	.tagedit-list li.tagedit-listelement-new input:focus {
	box-shadow: none;
	-moz-box-shadow: none;
	-webkit-box-shadow: none;
	-o-box-shadow: none;
	outline: none;
	}
	.tagedit-list li.tagedit-listelement-new input.tagedit-input-disabled {
	display: none;
	}

	/* Item that is put to the List */
	.form-section span.tag-element,
	.tagedit-list li.tagedit-listelement-old {
	padding: 3px 0 1px 6px;
	background: #ddeef5;
	background: -moz-linear-gradient(top, #edf6fa 0%, #d6e9f3 100%);
	background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#edf6fa), color-stop(100%,#d6e9f3));
	background: -o-linear-gradient(top, #edf6fa 0%, #d6e9f3 100%);
	background: -ms-linear-gradient(top, #edf6fa 0%, #d6e9f3 100%);
	background: linear-gradient(top, #edf6fa 0%, #d6e9f3 100%);
	border: 1px solid #c2dae5;
	-moz-border-radius: 4px;
	-webkit-border-radius: 4px;
	border-radius: 4px;
	color: #0d5165;
	}

	.form-section span.tag-element {
	margin-right: 0.6em;
	padding: 2px 6px;
	/* cursor: pointer; */
	}

	.form-section span.tag-element.inherit {
	color: #666;
	background: #f2f2f2;
	border-color: #ddd;
	}

	.tagedit-list li.tagedit-listelement-old a.tagedit-close,
	.tagedit-list li.tagedit-listelement-old a.tagedit-break,
	.tagedit-list li.tagedit-listelement-old a.tagedit-delete,
	.tagedit-list li.tagedit-listelement-old a.tagedit-save {
	text-indent: -2000px;
	display: inline-block;
	position: relative;
	top: -1px;
	width: 16px;
	height: 16px;
	margin: 0 2px 0 6px;
	background: url(sprites.png) -2px -122px no-repeat;
	cursor: pointer;
	}


	/ Special hacks for IE7 /
	/ They need to be in this file to also affect the task-create dialog embedded in mail view /

	html.ie7 #taskedit-completeness-slider {
	display: inline;
	}

	html.ie7 .form-section span.tag-element,
	html.ie7 .tagedit-list li.tagedit-listelement-old {
	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#edf6fa', endColorstr='#d6e9f3', GradientType=0);
	}

	html.ie7 .tagedit-list li.tagedit-listelement span {
	position: relative;
	top: -3px;
	}

	html.ie7 .tagedit-list li.tagedit-listelement-old a.tagedit-close {
	left: 5px;
	}

	diff --git a/plugins/tasklist/skins/larry/templates/mainview.html b/plugins/tasklist/skins/larry/templates/mainview.html
	index 9196d028..b85f7fbd 100644
	--- a/plugins/tasklist/skins/larry/templates/mainview.html
	+++ b/plugins/tasklist/skins/larry/templates/mainview.html
	@@ -1,154 +1,165 @@
	<roundcube:object name="doctype" value="html5" />
	<html>
	<head>
	<title><roundcube:object name="pagetitle" /></title>
	<roundcube:include file="/includes/links.html" />
	<!--[if lte IE 8]><link rel="stylesheet" type="text/css" href="/this/iehacks.css" /><![endif]-->
	</head>
	<body class="tasklistview noscroll">

	<roundcube:include file="/includes/header.html" />

	<div id="mainscreen">
	<div id="sidebar">
	<div id="taskstoolbar" class="toolbar">
	<roundcube:button command="newtask" type="link" class="button newtask disabled" classAct="button newtask" classSel="button newtask pressed" label="tasklist.newtask" title="tasklist.newtask" />
	<roundcube:container name="toolbar" id="taskstoolbar" />
	</div>

	<div id="tagsbox" class="uibox listbox">
	<h2 class="boxtitle"><roundcube:label name="tasklist.tags" id="taglist" /></h2>
	<div class="scroller">
	<roundcube:object name="plugin.tagslist" id="tagslist" />
	</div>
	</div>

	<div id="tasklistsbox" class="uibox listbox">
	<h2 class="boxtitle"><roundcube:label name="tasklist.lists" /></h2>
	<div class="scroller withfooter">
	<roundcube:object name="plugin.tasklists" id="tasklists" class="listing" />
	</div>
	<div class="boxfooter">
	<roundcube:button command="list-create" type="link" title="tasklist.createlist" class="listbutton add disabled" classAct="listbutton add" innerClass="inner" content="+" /><roundcube:button name="tasklistoptionslink" id="tasklistoptionsmenulink" type="link" title="tasklist.listactions" class="listbutton groupactions" onclick="UI.show_popup('tasklistoptionsmenu', undefined, { above:true });return false" innerClass="inner" content="⚙" />
	</div>
	</div>
	</div>

	<div id="mainview-right">

	<div id="quickaddbox">
	<roundcube:object name="plugin.quickaddform" />
	</div>

	<div id="quicksearchbar">
	<roundcube:object name="plugin.searchform" id="quicksearchbox" />
	<a id="searchmenulink" class="iconbutton searchoptions" > </a>
	<roundcube:button command="reset-search" id="searchreset" class="iconbutton reset" title="resetsearch" content=" " />
	</div>

	<div id="tasksview" class="uibox">
	<div class="boxtitle buttonbar">
	<ul id="taskselector">
	<li class="all selected"><a href="#all"><roundcube:label name="tasklist.all" /><span class="count"></span></a></li>
	<li class="overdue inactive"><a href="#overdue"><roundcube:label name="tasklist.overdue" /><span class="count"></span></a></li>
	<li class="flagged"><a href="#flagged"><roundcube:label name="tasklist.flagged" /><span class="count"></span></a></li>
	<li class="today"><a href="#today"><roundcube:label name="tasklist.today" /><span class="count"></span></a></li>
	<li class="tomorrow"><a href="#tomorrow"><roundcube:label name="tasklist.tomorrow" /><span class="count"></span></a></li>
	<li class="week"><a href="#week"><roundcube:label name="tasklist.next7days" /></a></li>
	<li class="later"><a href="#later"><roundcube:label name="tasklist.later" /></a></li>
	<li class="nodate"><a href="#nodate"><roundcube:label name="tasklist.nodate" ucfirst="true" /></a></li>
	<li class="complete"><a href="#complete"><roundcube:label name="tasklist.complete" /><span class="count"></span></a></li>
	</ul>
	+
	+ <div class="buttonbar-right">
	+ <roundcube:button name="taskviewmenulink" id="taskviewmenulink" type="link" title="tasklist.viewoptions" class="listmenu viewoptions" onclick="UI.show_popup('taskviewmenu');return false" innerClass="inner" content="⚙" />
	+ </div>
	</div>

	<div class="scroller">
	<roundcube:object name="plugin.tasks" id="thelist" />
	<div id="listmessagebox"></div>
	</div>
	<div id="rootdroppable"></div>
	<roundcube:object name="message" id="message" class="statusbar" />
	</div>

	</div>

	</div>

	<div id="taskitemmenu" class="popupmenu">
	<ul class="toolbarmenu iconized">
	<li><roundcube:button name="edit" type="link" onclick="rctasks.edit_task(rctasks.selected_task.id, 'edit'); return false" label="edit" class="icon active" innerclass="icon edit" /></li>
	<li><roundcube:button name="delete" type="link" onclick="rctasks.delete_task(rctasks.selected_task.id); return false" label="delete" class="icon active" innerclass="icon delete" /></li>
	<li><roundcube:button name="addchild" type="link" onclick="rctasks.add_childtask(rctasks.selected_task.id); return false" label="tasklist.addsubtask" class="icon active" innerclass="icon add" /></li>
	</ul>
	</div>

	<div id="tasklistoptionsmenu" class="popupmenu">
	<ul class="toolbarmenu">
	<li><roundcube:button command="list-edit" label="edit" classAct="active" /></li>
	<li><roundcube:button command="list-remove" label="delete" classAct="active" /></li>
	<!--<li><roundcube:button command="list-import" label="tasklist.import" classAct="active" /></li>-->
	<roundcube:if condition="env:tasklist_driver == 'kolab'" />
	<li><roundcube:button command="folders" task="settings" type="link" label="managefolders" classAct="active" /></li>
	<roundcube:endif />
	</ul>
	</div>

	+<div id="taskviewmenu" class="popupmenu">
	+ <ul class="toolbarmenu">
	+ <li><roundcube:button command="expand-all" label="expand-all" class="icon" classAct="icon active" innerclass="icon expand" /></li>
	+ <li><roundcube:button command="collapse-all" label="collapse-all" class="icon" classAct="icon active" innerclass="icon collapse" /></li>
	+ </ul>
	+</div>
	+
	<div id="taskshow">
	<div class="form-section" id="task-parent-title"></div>
	<div class="form-section">
	<h2 id="task-title"></h2>
	</div>
	<div id="task-description" class="form-section">
	</div>
	<div id="task-tags" class="form-section">
	<label><roundcube:label name="tasklist.tags" /></label>
	<span class="task-text"></span>
	</div>
	<div id="task-start" class="form-section">
	<label><roundcube:label name="tasklist.start" /></label>
	<span class="task-text"></span>
	<span id="task-starttime"></span>
	</div>
	<div id="task-date" class="form-section">
	<label><roundcube:label name="tasklist.datetime" /></label>
	<span class="task-text"></span>
	<span id="task-time"></span>
	</div>
	<div id="task-alarm" class="form-section">
	<label><roundcube:label name="tasklist.alarms" /></label>
	<span class="task-text"></span>
	</div>
	<div id="task-list" class="form-section">
	<label><roundcube:label name="tasklist.list" /></label>
	<span class="task-text"></span>
	</div>
	<div id="task-completeness" class="form-section">
	<label><roundcube:label name="tasklist.complete" /></label>
	<span class="task-text"></span>
	</div>
	<div id="task-attachments" class="form-section">
	<label><roundcube:label name="attachments" /></label>
	<div class="task-text"></div>
	</div>
	</div>

	<roundcube:include file="/templates/taskedit.html" />

	<div id="tasklistform" class="uidialog">
	<roundcube:object name="plugin.tasklist_editform" />
	</div>

	<script type="text/javascript">

	// UI startup
	var UI = new rcube_mail_ui();

	$(document).ready(function(e){
	UI.init();
	new rcube_splitter({ id:'taskviewsplitter', p1:'#sidebar', p2:'#mainview-right',
	orientation:'v', relative:true, start:240, min:180, size:16, offset:2 }).init();
	});

	</script>

	</body>
	</html>
	\ No newline at end of file
	diff --git a/plugins/tasklist/tasklist.js b/plugins/tasklist/tasklist.js
	index 631494c6..742f23a7 100644
	--- a/plugins/tasklist/tasklist.js
	+++ b/plugins/tasklist/tasklist.js
	@@ -1,1786 +1,1813 @@
	/**
	* Client scripts for the Tasklist plugin
	*
	* @version @package_version@
	* @author Thomas Bruederli <bruederli@kolabsys.com>
	*
	* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU Affero General Public License as
	* published by the Free Software Foundation, either version 3 of the
	* License, or (at your option) any later version.
	*
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
	*/

	function rcube_tasklist_ui(settings)
	{
	// extend base class
	rcube_libcalendaring.call(this, settings);

	/* constants */
	var FILTER_MASK_ALL = 0;
	var FILTER_MASK_TODAY = 1;
	var FILTER_MASK_TOMORROW = 2;
	var FILTER_MASK_WEEK = 4;
	var FILTER_MASK_LATER = 8;
	var FILTER_MASK_NODATE = 16;
	var FILTER_MASK_OVERDUE = 32;
	var FILTER_MASK_FLAGGED = 64;
	var FILTER_MASK_COMPLETE = 128;

	var filter_masks = {
	all: FILTER_MASK_ALL,
	today: FILTER_MASK_TODAY,
	tomorrow: FILTER_MASK_TOMORROW,
	week: FILTER_MASK_WEEK,
	later: FILTER_MASK_LATER,
	nodate: FILTER_MASK_NODATE,
	overdue: FILTER_MASK_OVERDUE,
	flagged: FILTER_MASK_FLAGGED,
	complete: FILTER_MASK_COMPLETE
	};

	/* private vars */
	var selector = 'all';
	var tagsfilter = [];
	var filtermask = FILTER_MASK_ALL;
	var loadstate = { filter:-1, lists:'', search:null };
	var idcount = 0;
	var saving_lock;
	var ui_loading;
	var taskcounts = {};
	var listindex = [];
	var listdata = {};
	var tags = [];
	var draghelper;
	var search_request;
	var search_query;
	var completeness_slider;
	var me = this;

	// general datepicker settings
	var datepicker_settings = {
	// translate from PHP format to datepicker format
	dateFormat: settings['date_format'].replace(/M/g, 'm').replace(/mmmmm/, 'MM').replace(/mmm/, 'M').replace(/dddd/, 'DD').replace(/ddd/, 'D').replace(/yy/g, 'y'),
	firstDay : settings['first_day'],
	// dayNamesMin: settings['days_short'],
	// monthNames: settings['months'],
	// monthNamesShort: settings['months'],
	changeMonth: false,
	showOtherMonths: true,
	selectOtherMonths: true
	};
	var extended_datepicker_settings;

	/* public members */
	this.tasklists = rcmail.env.tasklists;
	this.selected_task;
	this.selected_list;

	/* public methods */
	this.init = init;
	this.edit_task = task_edit_dialog;
	this.delete_task = delete_task;
	this.add_childtask = add_childtask;
	this.quicksearch = quicksearch;
	this.reset_search = reset_search;
	+ this.expand_collapse = expand_collapse;
	this.list_remove = list_remove;
	this.list_edit_dialog = list_edit_dialog;
	this.unlock_saving = unlock_saving;

	/* imports */
	var Q = this.quote_html;
	var text2html = this.text2html;
	var event_date_text = this.event_date_text;
	var parse_datetime = this.parse_datetime;
	var date2unixtime = this.date2unixtime;
	var fromunixtime = this.fromunixtime;
	var init_alarms_edit = this.init_alarms_edit;

	/**
	* initialize the tasks UI
	*/
	function init()
	{
	// initialize task list selectors
	for (var id in me.tasklists) {
	if ((li = rcmail.get_folder_li(id, 'rcmlitasklist'))) {
	init_tasklist_li(li, id);
	}

	if (me.tasklists[id].editable && !me.selected_list) {
	me.selected_list = id;
	rcmail.enable_command('addtask', true);
	$(li).click();
	}
	}

	// register server callbacks
	rcmail.addEventListener('plugin.data_ready', data_ready);
	rcmail.addEventListener('plugin.refresh_task', update_taskitem);
	rcmail.addEventListener('plugin.update_counts', update_counts);
	rcmail.addEventListener('plugin.insert_tasklist', insert_list);
	rcmail.addEventListener('plugin.update_tasklist', update_list);
	rcmail.addEventListener('plugin.destroy_tasklist', destroy_list);
	rcmail.addEventListener('plugin.reload_data', function(){ list_tasks(null); });
	rcmail.addEventListener('plugin.unlock_saving', unlock_saving);
	rcmail.addEventListener('requestrefresh', before_refresh);

	// start loading tasks
	fetch_counts();
	list_tasks();

	// register event handlers for UI elements
	$('#taskselector a').click(function(e){
	if (!$(this).parent().hasClass('inactive'))
	list_tasks(this.href.replace(/^.*#/, ''));
	return false;
	});

	// quick-add a task
	$(rcmail.gui_objects.quickaddform).submit(function(e){
	var tasktext = this.elements.text.value,
	rec = { id:-(++idcount), title:tasktext, readonly:true, mask:0, complete:0 };

	if (tasktext && tasktext.length) {
	save_task({ tempid:rec.id, raw:tasktext, list:me.selected_list }, 'new');
	render_task(rec);

	$('#listmessagebox').hide();
	}

	// clear form
	this.reset();
	return false;
	}).find('input[type=text]').placeholder(rcmail.gettext('createnewtask','tasklist'));

	// click-handler on tags list
	$(rcmail.gui_objects.tagslist).click(function(e){
	if (e.target.nodeName != 'LI')
	return false;

	var item = $(e.target),
	tag = item.data('value');

	// reset selection on regular clicks
	var index = $.inArray(tag, tagsfilter);
	var shift = e.shiftKey \|\| e.ctrlKey \|\| e.metaKey;

	if (!shift) {
	if (tagsfilter.length > 1)
	index = -1;

	$('li', this).removeClass('selected');
	tagsfilter = [];
	}

	// add tag to filter
	if (index < 0) {
	item.addClass('selected');
	tagsfilter.push(tag);
	}
	else if (shift) {
	item.removeClass('selected');
	var a = tagsfilter.slice(0,index);
	tagsfilter = a.concat(tagsfilter.slice(index+1));
	}

	list_tasks();

	// clear text selection in IE after shift+click
	if (shift && document.selection)
	document.selection.empty();

	e.preventDefault();
	return false;
	})
	.mousedown(function(e){
	// disable content selection with the mouse
	e.preventDefault();
	return false;
	});

	// click-handler on task list items (delegate)
	$(rcmail.gui_objects.resultlist).click(function(e){
	var item = $(e.target);
	var className = e.target.className;

	if (item.hasClass('childtoggle')) {
	item = item.parent().find('.taskhead');
	className = 'childtoggle';
	}
	else if (!item.hasClass('taskhead'))
	item = item.closest('div.taskhead');

	// ignore
	if (!item.length)
	return false;

	var id = item.data('id'),
	li = item.parent(),
	rec = listdata[id];

	switch (className) {
	case 'childtoggle':
	rec.collapsed = !rec.collapsed;
	li.children('.childtasks:first').toggle();
	$(e.target).toggleClass('collapsed').html(rec.collapsed ? '▶' : '▼');
	rcmail.http_post('tasks/task', { action:'collapse', t:{ id:rec.id, list:rec.list }, collapsed:rec.collapsed?1:0 });
	if (e.shiftKey) // expand/collapse all childs
	li.children('.childtasks:first .childtoggle.'+(rec.collapsed?'expanded':'collapsed')).click();
	break;

	case 'complete':
	if (rcmail.busy)
	return false;

	rec.complete = e.target.checked ? 1 : 0;
	li.toggleClass('complete');
	save_task(rec, 'edit');
	return true;

	case 'flagged':
	if (rcmail.busy)
	return false;

	rec.flagged = rec.flagged ? 0 : 1;
	li.toggleClass('flagged');
	save_task(rec, 'edit');
	break;

	case 'date':
	if (rcmail.busy)
	return false;

	var link = $(e.target).html(''),
	input = $('<input type="text" size="10" />').appendTo(link).val(rec.date \|\| '')

	input.datepicker($.extend({
	onClose: function(dateText, inst) {
	if (dateText != (rec.date \|\| '')) {
	rec.date = dateText;
	save_task(rec, 'edit');
	}
	input.datepicker('destroy').remove();
	link.html(dateText \|\| rcmail.gettext('nodate','tasklist'));
	}
	}, extended_datepicker_settings)
	)
	.datepicker('setDate', rec.date)
	.datepicker('show');
	break;

	case 'delete':
	delete_task(id);
	break;

	case 'actions':
	var pos, ref = $(e.target),
	menu = $('#taskitemmenu');
	if (menu.is(':visible') && menu.data('refid') == id) {
	menu.hide();
	}
	else {
	pos = ref.offset();
	pos.top += ref.outerHeight();
	pos.left += ref.width() - menu.outerWidth();
	menu.css({ top:pos.top+'px', left:pos.left+'px' }).show();
	menu.data('refid', id);
	me.selected_task = rec;
	}
	e.bubble = false;
	break;

	case 'extlink':
	return true;

	default:
	if (e.target.nodeName != 'INPUT')
	task_show_dialog(id);
	break;
	}

	return false;
	})
	.dblclick(function(e){
	var id, rec, item = $(e.target);
	if (!item.hasClass('taskhead'))
	item = item.closest('div.taskhead');

	if (!rcmail.busy && item.length && (id = item.data('id')) && (rec = listdata[id])) {
	var list = rec.list && me.tasklists[rec.list] ? me.tasklists[rec.list] : {};
	if (rec.readonly \|\| !list.editable)
	task_show_dialog(id);
	else
	task_edit_dialog(id, 'edit');
	clearSelection();
	}
	});

	// handle global document clicks: close popup menus
	$(document.body).click(clear_popups);

	// extended datepicker settings
	var extended_datepicker_settings = $.extend({
	showButtonPanel: true,
	beforeShow: function(input, inst) {
	setTimeout(function(){
	$(input).datepicker('widget').find('button.ui-datepicker-close')
	.html(rcmail.gettext('nodate','tasklist'))
	.attr('onclick', '')
	.click(function(e){
	$(input).datepicker('setDate', null).datepicker('hide');
	});
	}, 1);
	}
	}, datepicker_settings);
	}

	/**
	* initialize task edit form elements
	*/
	function init_taskedit()
	{
	$('#taskedit').tabs();

	var completeness_slider_change = function(e, ui){
	var v = completeness_slider.slider('value');
	if (v >= 98) v = 100;
	if (v <= 2) v = 0;
	$('#taskedit-completeness').val(v);
	};
	completeness_slider = $('#taskedit-completeness-slider').slider({
	range: 'min',
	animate: 'fast',
	slide: completeness_slider_change,
	change: completeness_slider_change
	});
	$('#taskedit-completeness').change(function(e){
	completeness_slider.slider('value', parseInt(this.value))
	});

	// register events on alarm fields
	init_alarms_edit('#taskedit');

	$('#taskedit-date, #taskedit-startdate').datepicker(datepicker_settings);

	$('a.edit-nodate').click(function(){
	var sel = $(this).attr('rel');
	if (sel) $(sel).val('');
	return false;
	});
	}

	/**
	* Request counts from the server
	*/
	function fetch_counts()
	{
	var active = active_lists();
	if (active.length)
	rcmail.http_request('counts', { lists:active.join(',') });
	else
	update_counts({});
	}

	/**
	* List tasks matching the given selector
	*/
	function list_tasks(sel)
	{
	if (rcmail.busy)
	return;

	if (sel && filter_masks[sel] !== undefined) {
	filtermask = filter_masks[sel];
	selector = sel;
	}

	var active = active_lists(),
	basefilter = filtermask == FILTER_MASK_COMPLETE ? FILTER_MASK_COMPLETE : FILTER_MASK_ALL,
	reload = active.join(',') != loadstate.lists \|\| basefilter != loadstate.filter \|\| loadstate.search != search_query;

	if (active.length && reload) {
	ui_loading = rcmail.set_busy(true, 'loading');
	rcmail.http_request('fetch', { filter:basefilter, lists:active.join(','), q:search_query }, true);
	}
	else if (reload)
	data_ready({ data:[], lists:'', filter:basefilter, search:search_query });
	else
	render_tasklist();

	$('#taskselector li.selected').removeClass('selected');
	$('#taskselector li.'+selector).addClass('selected');
	}

	/**
	* Remove all tasks of the given list from the UI
	*/
	function remove_tasks(list_id)
	{
	// remove all tasks of the given list from index
	var newindex = $.grep(listindex, function(id, i){
	return listdata[id] && listdata[id].list != list_id;
	});

	listindex = newindex;
	render_tasklist();

	// avoid reloading
	me.tasklists[list_id].active = false;
	loadstate.lists = active_lists();
	}

	/**
	* Modify query parameters for refresh requests
	*/
	function before_refresh(query)
	{
	query.filter = filtermask == FILTER_MASK_COMPLETE ? FILTER_MASK_COMPLETE : FILTER_MASK_ALL;
	query.lists = active_lists().join(',');
	if (search_query)
	query.q = search_query;

	return query;
	}

	/**
	* Callback if task data from server is ready
	*/
	function data_ready(response)
	{
	listdata = {};
	listindex = [];
	loadstate.lists = response.lists;
	loadstate.filter = response.filter;
	loadstate.search = response.search;

	for (var id, i=0; i < response.data.length; i++) {
	id = response.data[i].id;
	listindex.push(id);
	listdata[id] = response.data[i];
	listdata[id].children = [];
	// register a forward-pointer to child tasks
	if (listdata[id].parent_id && listdata[listdata[id].parent_id])
	listdata[listdata[id].parent_id].children.push(id);
	}

	render_tasklist();
	append_tags(response.tags \|\| []);
	rcmail.set_busy(false, 'loading', ui_loading);
	}

	/**
	*
	*/
	function render_tasklist()
	{
	// clear display
	var id, rec,
	count = 0,
	cache = {},
	msgbox = $('#listmessagebox').hide(),
	list = $(rcmail.gui_objects.resultlist).html('');

	for (var i=0; i < listindex.length; i++) {
	id = listindex[i];
	rec = listdata[id];
	if (match_filter(rec, cache)) {
	render_task(rec);
	count++;
	}
	}

	fix_tree_toggles();

	if (!count)
	msgbox.html(rcmail.gettext('notasksfound','tasklist')).show();
	}

	/**
	* Show/hide child toggle buttons on all visible task items
	*/
	function fix_tree_toggles()
	{
	$('.taskitem', rcmail.gui_objects.resultlist).each(function(i,elem){
	var li = $(elem),
	rec = listdata[li.attr('rel')],
	childs = $('.childtasks li', li);

	$('.childtoggle', li)[(childs.length ? 'show' : 'hide')]();
	})
	}

	+ /**
	+ * Expand/collapse all task items with childs
	+ */
	+ function expand_collapse(expand)
	+ {
	+ var collapsed = !expand;
	+
	+ $('.taskitem .childtasks')[(collapsed ? 'hide' : 'show')]();
	+ $('.taskitem .childtoggle')
	+ .removeClass(collapsed ? 'expanded' : 'collapsed')
	+ .addClass(collapsed ? 'collapsed' : 'expanded')
	+ .html(collapsed ? '▶' : '▼');
	+
	+ // store new toggle collapse states
	+ var ids = [];
	+ for (var id in listdata) {
	+ if (listdata[id].children && listdata[id].children.length)
	+ ids.push(id);
	+ }
	+ if (ids.length) {
	+ rcmail.http_post('tasks/task', { action:'collapse', t:{ id:ids.join(',') }, collapsed:collapsed?1:0 });
	+ }
	+ }
	+
	/**
	*
	*/
	function append_tags(taglist)
	{
	// find new tags
	var newtags = [];
	for (var i=0; i < taglist.length; i++) {
	if ($.inArray(taglist[i], tags) < 0)
	newtags.push(taglist[i]);
	}
	tags = tags.concat(newtags);

	// append new tags to tag cloud
	$.each(newtags, function(i, tag){
	$('<li>').attr('rel', tag).data('value', tag).html(Q(tag)).appendTo(rcmail.gui_objects.tagslist);
	});

	// re-sort tags list
	$(rcmail.gui_objects.tagslist).children('li').sortElements(function(a,b){
	return $.text([a]).toLowerCase() > $.text([b]).toLowerCase() ? 1 : -1;
	});
	}

	/**
	*
	*/
	function update_counts(counts)
	{
	// got new data
	if (counts)
	taskcounts = counts;

	// iterate over all selector links and update counts
	$('#taskselector a').each(function(i, elem){
	var link = $(elem),
	f = link.parent().attr('class').replace(/\s\w+/, '');
	if (f != 'all')
	link.children('span').html(taskcounts[f] \|\| '')[(taskcounts[f] ? 'show' : 'hide')]();
	});

	// spacial case: overdue
	$('#taskselector li.overdue')[(taskcounts.overdue ? 'removeClass' : 'addClass')]('inactive');
	}

	/**
	* Callback from server to update a single task item
	*/
	function update_taskitem(rec)
	{
	// handle a list of task records
	if ($.isArray(rec)) {
	$.each(rec, function(i,r){ update_taskitem(r); });
	return;
	}

	var id = rec.id,
	oldid = rec.tempid \|\| id,
	oldrec = listdata[oldid],
	oldindex = $.inArray(oldid, listindex),
	oldparent = oldrec ? (oldrec._old_parent_id \|\| oldrec.parent_id) : null,
	list = me.tasklists[rec.list];

	if (oldindex >= 0)
	listindex[oldindex] = id;
	else
	listindex.push(id);

	listdata[id] = rec;

	// remove child-pointer from old parent
	if (oldparent && listdata[oldparent] && oldparent != rec.parent_id) {
	var oldchilds = listdata[oldparent].children,
	i = $.inArray(oldid, oldchilds);
	if (i >= 0) {
	listdata[oldparent].children = oldchilds.slice(0,i).concat(oldchilds.slice(i+1));
	}
	}

	// register a forward-pointer to child tasks
	if (rec.parent_id && listdata[rec.parent_id] && listdata[rec.parent_id].children && $.inArray(id, listdata[rec.parent_id].children) < 0)
	listdata[rec.parent_id].children.push(id);

	// restore pointers to my children
	if (!listdata[id].children) {
	listdata[id].children = [];
	for (var pid in listdata) {
	if (listdata[pid].parent_id == id)
	listdata[id].children.push(pid);
	}
	}

	if (list.active)
	render_task(rec, oldid);
	else
	$('li[rel="'+id+'"]', rcmail.gui_objects.resultlist).remove();

	append_tags(rec.tags \|\| []);
	fix_tree_toggles();
	}

	/**
	* Submit the given (changed) task record to the server
	*/
	function save_task(rec, action)
	{
	if (!rcmail.busy) {
	saving_lock = rcmail.set_busy(true, 'tasklist.savingdata');
	rcmail.http_post('tasks/task', { action:action, t:rec, filter:filtermask });
	$('button.ui-button:ui-button').button('option', 'disabled', rcmail.busy);
	return true;
	}

	return false;
	}

	/**
	* Remove saving lock and free the UI for new input
	*/
	function unlock_saving()
	{
	if (saving_lock) {
	rcmail.set_busy(false, null, saving_lock);
	$('button.ui-button:ui-button').button('option', 'disabled', false);
	}
	}

	/**
	* Render the given task into the tasks list
	*/
	function render_task(rec, replace)
	{
	var tags_html = '';
	for (var j=0; rec.tags && j < rec.tags.length; j++)
	tags_html += '<span class="tag">' + Q(rec.tags[j]) + '</span>';

	var div = $('<div>').addClass('taskhead').html(
	'<div class="progressbar"><div class="progressvalue" style="width:' + (rec.complete * 100) + '%"></div></div>' +
	'<input type="checkbox" name="completed[]" value="1" class="complete" ' + (rec.complete == 1.0 ? 'checked="checked" ' : '') + '/>' +
	'<span class="flagged"></span>' +
	'<span class="title">' + text2html(Q(rec.title)) + '</span>' +
	'<span class="tags">' + tags_html + '</span>' +
	'<span class="date">' + Q(rec.date \|\| rcmail.gettext('nodate','tasklist')) + '</span>' +
	'<a href="#" class="actions">V</a>'
	)
	.data('id', rec.id)
	.draggable({
	revert: 'invalid',
	addClasses: false,
	cursorAt: { left:-10, top:12 },
	helper: draggable_helper,
	appendTo: 'body',
	start: draggable_start,
	stop: draggable_stop,
	revertDuration: 300
	});

	if (rec.complete == 1.0)
	div.addClass('complete');
	if (rec.flagged)
	div.addClass('flagged');
	if (!rec.date)
	div.addClass('nodate');
	if ((rec.mask & FILTER_MASK_OVERDUE))
	div.addClass('overdue');

	var li, inplace = false, parent = rec.parent_id ? $('li[rel="'+rec.parent_id+'"] > ul.childtasks', rcmail.gui_objects.resultlist) : null;
	if (replace && (li = $('li[rel="'+replace+'"]', rcmail.gui_objects.resultlist)) && li.length) {
	li.children('div.taskhead').first().replaceWith(div);
	li.attr('rel', rec.id);
	inplace = true;
	}
	else {
	li = $('<li>')
	.attr('rel', rec.id)
	.addClass('taskitem')
	.append((rec.collapsed ? '<span class="childtoggle collapsed">▶' : '<span class="childtoggle expanded">▼') + '</span>')
	.append(div)
	.append('<ul class="childtasks" style="' + (rec.collapsed ? 'display:none' : '') + '"></ul>');

	if (!parent \|\| !parent.length)
	li.appendTo(rcmail.gui_objects.resultlist);
	}

	if (!inplace && parent && parent.length)
	li.appendTo(parent);

	if (replace) {
	resort_task(rec, li, true);
	// TODO: remove the item after a while if it doesn't match the current filter anymore
	}
	}

	/**
	* Move the given task item to the right place in the list
	*/
	function resort_task(rec, li, animated)
	{
	var dir = 0, index, slice, next_li, next_id, next_rec;

	// animated moving
	var insert_animated = function(li, before, after) {
	if (before && li.next().get(0) == before.get(0))
	return; // nothing to do
	else if (after && li.prev().get(0) == after.get(0))
	return; // nothing to do

	var speed = 300;
	li.slideUp(speed, function(){
	if (before) li.insertBefore(before);
	else if (after) li.insertAfter(after);
	li.slideDown(speed);
	});
	}

	// remove from list index
	var oldlist = listindex.join('%%%');
	var oldindex = $.inArray(rec.id, listindex);
	if (oldindex >= 0) {
	slice = listindex.slice(0,oldindex);
	listindex = slice.concat(listindex.slice(oldindex+1));
	}

	// find the right place to insert the task item
	li.siblings().each(function(i, elem){
	next_li = $(elem);
	next_id = next_li.attr('rel');
	next_rec = listdata[next_id];

	if (next_id == rec.id) {
	next_li = null;
	return 1; // continue
	}

	if (next_rec && task_cmp(rec, next_rec) > 0) {
	return 1; // continue;
	}
	else if (next_rec && next_li && task_cmp(rec, next_rec) < 0) {
	if (animated) insert_animated(li, next_li);
	else li.insertBefore(next_li);
	next_li = null;
	return false;
	}
	});

	index = $.inArray(next_id, listindex);

	if (next_li) {
	if (animated) insert_animated(li, null, next_li);
	else li.insertAfter(next_li);
	index++;
	}

	// insert into list index
	if (next_id && index >= 0) {
	slice = listindex.slice(0,index);
	slice.push(rec.id);
	listindex = slice.concat(listindex.slice(index));
	}
	else { // restore old list index
	listindex = oldlist.split('%%%');
	}
	}

	/**
	* Compare function of two task records.
	* (used for sorting)
	*/
	function task_cmp(a, b)
	{
	var d = Math.floor(a.complete) - Math.floor(b.complete);
	if (!d) d = (b._hasdate-0) - (a._hasdate-0);
	if (!d) d = (a.datetime\|\|99999999999) - (b.datetime\|\|99999999999);
	return d;
	}

	/**
	*
	*/
	function get_all_childs(id)
	{
	var cid, childs = [];
	for (var i=0; listdata[id].children && i < listdata[id].children.length; i++) {
	cid = listdata[id].children[i];
	childs.push(cid);
	childs = childs.concat(get_all_childs(cid));
	}

	return childs;
	}


	/* Helper functions for drag & drop functionality */

	function draggable_helper()
	{
	if (!draghelper)
	draghelper = $('<div class="taskitem-draghelper">✔</div>');

	return draghelper;
	}

	function draggable_start(event, ui)
	{
	$('.taskhead, #rootdroppable, #'+rcmail.gui_objects.folderlist.id+' li').droppable({
	hoverClass: 'droptarget',
	accept: droppable_accept,
	drop: draggable_dropped,
	addClasses: false
	});

	$(this).parent().addClass('dragging');
	$('#rootdroppable').show();
	}

	function draggable_stop(event, ui)
	{
	$(this).parent().removeClass('dragging');
	$('#rootdroppable').hide();
	}

	function droppable_accept(draggable)
	{
	if (rcmail.busy)
	return false;

	var drag_id = draggable.data('id'),
	drop_id = $(this).data('id'),
	drag_rec = listdata[drag_id] \|\| {},
	drop_rec = listdata[drop_id];

	// drop target is another list
	if (drag_rec && $(this).data('type') == 'tasklist') {
	var drop_list = me.tasklists[drop_id],
	from_list = me.tasklists[drag_rec.list];
	return !drag_rec.parent_id && drop_id != drag_rec.list && drop_list && drop_list.editable && from_list && from_list.editable;
	}

	if (drop_rec && drop_rec.list != drag_rec.list)
	return false;

	if (drop_id == drag_rec.parent_id)
	return false;

	while (drop_rec && drop_rec.parent_id) {
	if (drop_rec.parent_id == drag_id)
	return false;
	drop_rec = listdata[drop_rec.parent_id];
	}

	return true;
	}

	function draggable_dropped(event, ui)
	{
	var drop_id = $(this).data('id'),
	task_id = ui.draggable.data('id'),
	rec = listdata[task_id],
	parent, li;

	// dropped on another list -> move
	if ($(this).data('type') == 'tasklist') {
	if (rec) {
	save_task({ id:rec.id, list:drop_id, _fromlist:rec.list }, 'move');
	rec.list = drop_id;
	}
	}
	// dropped on a new parent task or root
	else {
	parent = drop_id ? $('li[rel="'+drop_id+'"] > ul.childtasks', rcmail.gui_objects.resultlist) : $(rcmail.gui_objects.resultlist)

	if (rec && parent.length) {
	// submit changes to server
	rec._old_parent_id = rec.parent_id;
	rec.parent_id = drop_id \|\| 0;
	save_task(rec, 'edit');

	li = ui.draggable.parent();
	li.slideUp(300, function(){
	li.appendTo(parent);
	resort_task(rec, li);
	li.slideDown(300);
	fix_tree_toggles();
	});
	}
	}
	}


	/**
	* Show task details in a dialog
	*/
	function task_show_dialog(id)
	{
	var $dialog = $('#taskshow'), rec;

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (!(rec = listdata[id]) \|\| clear_popups({}))
	return;

	me.selected_task = rec;

	// fill dialog data
	$('#task-parent-title').html(Q(rec.parent_title \|\| '')+' »').css('display', rec.parent_title ? 'block' : 'none');
	$('#task-title').html(text2html(Q(rec.title \|\| '')));
	$('#task-description').html(text2html(rec.description \|\| '', 300, 6))[(rec.description ? 'show' : 'hide')]();
	$('#task-date')[(rec.date ? 'show' : 'hide')]().children('.task-text').html(Q(rec.date \|\| rcmail.gettext('nodate','tasklist')));
	$('#task-time').html(Q(rec.time \|\| ''));
	$('#task-start')[(rec.startdate ? 'show' : 'hide')]().children('.task-text').html(Q(rec.startdate \|\| ''));
	$('#task-starttime').html(Q(rec.starttime \|\| ''));
	$('#task-alarm')[(rec.alarms_text ? 'show' : 'hide')]().children('.task-text').html(Q(rec.alarms_text));
	$('#task-completeness .task-text').html(((rec.complete \|\| 0) * 100) + '%');
	$('#task-list .task-text').html(Q(me.tasklists[rec.list] ? me.tasklists[rec.list].name : ''));

	var itags = get_inherited_tags(rec);
	var taglist = $('#task-tags')[(rec.tags && rec.tags.length \|\| itags.length ? 'show' : 'hide')]().children('.task-text').empty();
	if (rec.tags && rec.tags.length) {
	$.each(rec.tags, function(i,val){
	$('<span>').addClass('tag-element').html(Q(val)).appendTo(taglist);
	});
	}

	// append inherited tags
	if (itags.length) {
	$.each(itags, function(i,val){
	$('<span>').addClass('tag-element inherit').html(Q(val)).appendTo(taglist);
	});
	// re-sort tags list
	$(taglist).children().sortElements(function(a,b){
	return $.text([a]).toLowerCase() > $.text([b]).toLowerCase() ? 1 : -1;
	});
	}

	// build attachments list
	$('#task-attachments').hide();
	if ($.isArray(rec.attachments)) {
	task_show_attachments(rec.attachments \|\| [], $('#task-attachments').children('.task-text'), rec);
	if (rec.attachments.length > 0) {
	$('#task-attachments').show();
	}
	}

	// define dialog buttons
	var buttons = [];
	buttons.push({
	text: rcmail.gettext('edit','tasklist'),
	click: function() {
	task_edit_dialog(me.selected_task.id, 'edit');
	},
	disabled: rcmail.busy
	});

	buttons.push({
	text: rcmail.gettext('delete','tasklist'),
	click: function() {
	if (delete_task(me.selected_task.id))
	$dialog.dialog('close');
	},
	disabled: rcmail.busy
	});

	// open jquery UI dialog
	$dialog.dialog({
	modal: false,
	resizable: true,
	closeOnEscape: true,
	title: rcmail.gettext('taskdetails', 'tasklist'),
	open: function() {
	$dialog.parent().find('.ui-button').first().focus();
	},
	close: function() {
	$dialog.dialog('destroy').appendTo(document.body);
	},
	buttons: buttons,
	minWidth: 500,
	width: 580
	}).show();

	// set dialog size according to content
	me.dialog_resize($dialog.get(0), $dialog.height(), 580);
	}

	/**
	* Opens the dialog to edit a task
	*/
	function task_edit_dialog(id, action, presets)
	{
	$('#taskshow:ui-dialog').dialog('close');

	var rec = listdata[id] \|\| presets,
	$dialog = $('<div>'),
	editform = $('#taskedit'),
	list = rec.list && me.tasklists[rec.list] ? me.tasklists[rec.list] :
	(me.selected_list ? me.tasklists[me.selected_list] : { editable: action=='new' });

	if (rcmail.busy \|\| !list.editable \|\| (action == 'edit' && (!rec \|\| rec.readonly)))
	return false;

	me.selected_task = $.extend({ alarms:'' }, rec); // clone task object
	rec = me.selected_task;

	// assign temporary id
	if (!me.selected_task.id)
	me.selected_task.id = -(++idcount);

	// reset dialog first
	$('#taskeditform').get(0).reset();

	// fill form data
	var title = $('#taskedit-title').val(rec.title \|\| '');
	var description = $('#taskedit-description').val(rec.description \|\| '');
	var recdate = $('#taskedit-date').val(rec.date \|\| '');
	var rectime = $('#taskedit-time').val(rec.time \|\| '');
	var recstartdate = $('#taskedit-startdate').val(rec.startdate \|\| '');
	var recstarttime = $('#taskedit-starttime').val(rec.starttime \|\| '');
	var complete = $('#taskedit-completeness').val((rec.complete \|\| 0) * 100);
	completeness_slider.slider('value', complete.val());
	var tasklist = $('#taskedit-tasklist').val(rec.list \|\| 0).prop('disabled', rec.parent_id ? true : false);

	// tag-edit line
	var tagline = $(rcmail.gui_objects.edittagline).empty();
	$.each(typeof rec.tags == 'object' && rec.tags.length ? rec.tags : [''], function(i,val){
	$('<input>')
	.attr('name', 'tags[]')
	.attr('tabindex', '3')
	.addClass('tag')
	.val(val)
	.appendTo(tagline);
	});

	$('input.tag', rcmail.gui_objects.edittagline).tagedit({
	animSpeed: 100,
	allowEdit: false,
	checkNewEntriesCaseSensitive: false,
	autocompleteOptions: { source: tags, minLength: 0 },
	texts: { removeLinkTitle: rcmail.gettext('removetag', 'tasklist') }
	});

	// set alarm(s)
	if (rec.alarms \|\| action != 'new') {
	var valarms = (typeof rec.alarms == 'string' ? rec.alarms.split(';') : rec.alarms) \|\| [''];
	for (var alarm, i=0; i < valarms.length; i++) {
	alarm = String(valarms[i]).split(':');
	if (!alarm[1] && alarm[0]) alarm[1] = 'DISPLAY';
	$('#taskedit select.edit-alarm-type').val(alarm[1]);

	if (alarm[0].match(/@(\d+)/)) {
	var ondate = fromunixtime(parseInt(RegExp.$1));
	$('#taskedit select.edit-alarm-offset').val('@');
	$('#taskedit input.edit-alarm-date').val(me.format_datetime(ondate, 1));
	$('#taskedit input.edit-alarm-time').val(me.format_datetime(ondate, 2));
	}
	else if (alarm[0].match(/([-+])(\d+)([MHD])/)) {
	$('#taskedit input.edit-alarm-value').val(RegExp.$2);
	$('#taskedit select.edit-alarm-offset').val(''+RegExp.$1+RegExp.$3);
	}

	break; // only one alarm is currently supported
	}
	}
	// set correct visibility by triggering onchange handlers
	$('#taskedit select.edit-alarm-type, #taskedit select.edit-alarm-offset').change();

	// attachments
	rcmail.enable_command('remove-attachment', list.editable);
	me.selected_task.deleted_attachments = [];
	// we're sharing some code for uploads handling with app.js
	rcmail.env.attachments = [];
	rcmail.env.compose_id = me.selected_task.id; // for rcmail.async_upload_form()

	if ($.isArray(rec.attachments)) {
	task_show_attachments(rec.attachments, $('#taskedit-attachments'), rec, true);
	}
	else {
	$('#taskedit-attachments > ul').empty();
	}

	// show/hide tabs according to calendar's feature support
	$('#taskedit-tab-attachments')[(list.attachments\|\|rec.attachments?'show':'hide')]();

	// activate the first tab
	$('#taskedit').tabs('select', 0);

	// define dialog buttons
	var buttons = {};
	buttons[rcmail.gettext('save', 'tasklist')] = function() {
	// copy form field contents into task object to save
	$.each({ title:title, description:description, date:recdate, time:rectime, startdate:recstartdate, starttime:recstarttime, list:tasklist }, function(key,input){
	me.selected_task[key] = input.val();
	});
	me.selected_task.tags = [];
	me.selected_task.attachments = [];

	// do some basic input validation
	if (!me.selected_task.title \|\| !me.selected_task.title.length) {
	title.focus();
	return false;
	}
	else if (me.selected_task.startdate && me.selected_task.date) {
	var startdate = $.datepicker.parseDate(datepicker_settings.dateFormat, me.selected_task.startdate, datepicker_settings);
	var duedate = $.datepicker.parseDate(datepicker_settings.dateFormat, me.selected_task.date, datepicker_settings);
	if (startdate > duedate) {
	alert(rcmail.gettext('invalidstartduedates', 'tasklist'));
	return false;
	}
	}

	// collect tags
	$('input[type="hidden"]', rcmail.gui_objects.edittagline).each(function(i,elem){
	if (elem.value)
	me.selected_task.tags.push(elem.value);
	});
	// including the "pending" one in the text box
	var newtag = $('#tagedit-input').val();
	if (newtag != '') {
	me.selected_task.tags.push(newtag);
	}

	// serialize alarm settings
	var alarm = $('#taskedit select.edit-alarm-type').val();
	if (alarm) {
	var val, offset = $('#taskedit select.edit-alarm-offset').val();
	if (offset == '@')
	me.selected_task.alarms = '@' + date2unixtime(parse_datetime($('#taskedit input.edit-alarm-time').val(), $('#taskedit input.edit-alarm-date').val())) + ':' + alarm;
	else if ((val = parseInt($('#taskedit input.edit-alarm-value').val())) && !isNaN(val) && val >= 0)
	me.selected_task.alarms = offset[0] + val + offset[1] + ':' + alarm;
	}

	// uploaded attachments list
	for (var i in rcmail.env.attachments) {
	if (i.match(/^rcmfile(.+)/))
	me.selected_task.attachments.push(RegExp.$1);
	}

	// task assigned to a new list
	if (me.selected_task.list && me.selected_task.list != rec.list) {
	me.selected_task._fromlist = rec.list;
	}

	me.selected_task.complete = complete.val() / 100;
	if (isNaN(me.selected_task.complete))
	me.selected_task.complete = null;

	if (!me.selected_task.list && list.id)
	me.selected_task.list = list.id;

	if (save_task(me.selected_task, action))
	$dialog.dialog('close');
	};

	if (action != 'new') {
	buttons[rcmail.gettext('delete', 'tasklist')] = function() {
	if (delete_task(rec.id))
	$dialog.dialog('close');
	};
	}

	buttons[rcmail.gettext('cancel', 'tasklist')] = function() {
	$dialog.dialog('close');
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: (!bw.ie6 && !bw.ie7), // disable for performance reasons
	closeOnEscape: false,
	title: rcmail.gettext((action == 'edit' ? 'edittask' : 'newtask'), 'tasklist'),
	close: function() {
	editform.hide().appendTo(document.body);
	$dialog.dialog('destroy').remove();
	},
	buttons: buttons,
	minHeight: 460,
	minWidth: 500,
	width: 580
	}).append(editform.show()); // adding form content AFTERWARDS massively speeds up opening on IE

	title.select();

	// set dialog size according to content
	me.dialog_resize($dialog.get(0), $dialog.height(), 580);
	}


	/**
	* Open a task attachment either in a browser window for inline view or download it
	*/
	function load_attachment(rec, att)
	{
	// can't open temp attachments
	if (!rec.id \|\| rec.id < 0)
	return false;

	var qstring = '_id='+urlencode(att.id)+'&_t='+urlencode(rec.recurrence_id\|\|rec.id)+'&_list='+urlencode(rec.list);

	// open attachment in frame if it's of a supported mimetype
	// similar as in app.js and calendar_ui.js
	if (att.id && att.mimetype && $.inArray(att.mimetype, settings.mimetypes)>=0) {
	if (rcmail.open_window(rcmail.env.comm_path+'&_action=get-attachment&'+qstring+'&_frame=1', true, true)) {
	return;
	}
	}

	rcmail.goto_url('get-attachment', qstring+'&_download=1', false);
	};

	/**
	* Build task attachments list
	*/
	function task_show_attachments(list, container, rec, edit)
	{
	var i, id, len, content, li, elem,
	ul = $('<ul>').addClass('attachmentslist');

	for (i=0, len=list.length; i<len; i++) {
	elem = list[i];
	li = $('<li>').addClass(elem.classname);

	if (edit) {
	rcmail.env.attachments[elem.id] = elem;
	// delete icon
	content = $('<a>')
	.attr('href', '#delete')
	.attr('title', rcmail.gettext('delete'))
	.addClass('delete')
	.click({ id:elem.id }, function(e) {
	remove_attachment(this, e.data.id);
	return false;
	});

	if (!rcmail.env.deleteicon) {
	content.html(rcmail.gettext('delete'));
	}
	else {
	$('<img>').attr('src', rcmail.env.deleteicon).attr('alt', rcmail.gettext('delete')).appendTo(content);
	}

	li.append(content);
	}

	// name/link
	$('<a>')
	.attr('href', '#load')
	.addClass('file')
	.html(elem.name).click({ task:rec, att:elem }, function(e) {
	load_attachment(e.data.task, e.data.att);
	return false;
	}).appendTo(li);

	ul.append(li);
	}

	if (edit && rcmail.gui_objects.attachmentlist) {
	ul.id = rcmail.gui_objects.attachmentlist.id;
	rcmail.gui_objects.attachmentlist = ul.get(0);
	}

	container.empty().append(ul);
	};

	/**
	*
	*/
	var remove_attachment = function(elem, id)
	{
	$(elem.parentNode).hide();
	me.selected_task.deleted_attachments.push(id);
	delete rcmail.env.attachments[id];
	};

	/**
	*
	*/
	function add_childtask(id)
	{
	if (rcmail.busy)
	return false;

	var rec = listdata[id];
	task_edit_dialog(null, 'new', { parent_id:id, list:rec.list });
	}

	/**
	* Delete the given task
	*/
	function delete_task(id)
	{
	var rec = listdata[id];
	if (!rec \|\| rec.readonly \|\| rcmail.busy)
	return false;

	var html, buttons = [{
	text: rcmail.gettext('cancel', 'tasklist'),
	click: function() {
	$(this).dialog('close');
	}
	}];

	if (rec.children && rec.children.length) {
	html = rcmail.gettext('deleteparenttasktconfirm','tasklist');
	buttons.push({
	text: rcmail.gettext('deletethisonly','tasklist'),
	click: function() {
	_delete_task(id, 0);
	$(this).dialog('close');
	}
	});
	buttons.push({
	text: rcmail.gettext('deletewithchilds','tasklist'),
	click: function() {
	_delete_task(id, 1);
	$(this).dialog('close');
	}
	});
	}
	else {
	html = rcmail.gettext('deletetasktconfirm','tasklist');
	buttons.push({
	text: rcmail.gettext('delete','tasklist'),
	click: function() {
	_delete_task(id, 0);
	$(this).dialog('close');
	}
	});
	}

	var $dialog = $('<div>').html(html);
	$dialog.dialog({
	modal: true,
	width: 520,
	dialogClass: 'warning',
	title: rcmail.gettext('deletetask', 'tasklist'),
	buttons: buttons,
	close: function(){
	$dialog.dialog('destroy').hide();
	}
	}).addClass('tasklist-confirm').show();

	return true;
	}

	/**
	* Subfunction to submit the delete command after confirm
	*/
	function _delete_task(id, mode)
	{
	var rec = listdata[id],
	li = $('li[rel="'+id+'"]', rcmail.gui_objects.resultlist).hide();

	saving_lock = rcmail.set_busy(true, 'tasklist.savingdata');
	rcmail.http_post('task', { action:'delete', t:{ id:rec.id, list:rec.list }, mode:mode, filter:filtermask });

	// move childs to parent/root
	if (mode != 1 && rec.children !== undefined) {
	var parent_node = rec.parent_id ? $('li[rel="'+rec.parent_id+'"] > .childtasks', rcmail.gui_objects.resultlist) : null;
	if (!parent_node \|\| !parent_node.length)
	parent_node = rcmail.gui_objects.resultlist;

	$.each(rec.children, function(i,cid) {
	var child = listdata[cid];
	child.parent_id = rec.parent_id;
	resort_task(child, $('li[rel="'+cid+'"]').appendTo(parent_node), true);
	});
	}

	li.remove();
	}

	/**
	* Check if the given task matches the current filtermask and tag selection
	*/
	function match_filter(rec, cache, recursive)
	{
	// return cached result
	if (typeof cache[rec.id] != 'undefined' && recursive != 2) {
	return cache[rec.id];
	}

	var match = !filtermask \|\| (filtermask & rec.mask) > 0

	if (match && tagsfilter.length) {
	match = rec.tags && rec.tags.length;
	var alltags = get_inherited_tags(rec).concat(rec.tags \|\| []);
	for (var i=0; match && i < tagsfilter.length; i++) {
	if ($.inArray(tagsfilter[i], alltags) < 0)
	match = false;
	}
	}

	// check if a child task matches the tags
	if (!match && (recursive\|\|0) < 2 && rec.children && rec.children.length) {
	for (var j=0; !match && j < rec.children.length; j++) {
	match = match_filter(listdata[rec.children[j]], cache, 1);
	}
	}

	// walk up the task tree and check if a parent task matches
	var parent_id;
	if (!match && !recursive && (parent_id = rec.parent_id)) {
	while (!match && parent_id && listdata[parent_id]) {
	match = match_filter(listdata[parent_id], cache, 2);
	parent_id = listdata[parent_id].parent_id;
	}
	}

	if (recursive != 1) {
	cache[rec.id] = match;
	}
	return match;
	}

	/**
	*
	*/
	function get_inherited_tags(rec)
	{
	var parent_id, itags = [];

	if ((parent_id = rec.parent_id)) {
	while (parent_id && listdata[parent_id]) {
	itags = itags.concat(listdata[parent_id].tags \|\| []);
	parent_id = listdata[parent_id].parent_id;
	}
	}

	return itags;
	}

	/**
	*
	*/
	function list_edit_dialog(id)
	{
	var list = me.tasklists[id],
	$dialog = $('#tasklistform');
	editform = $('#tasklisteditform');

	if ($dialog.is(':ui-dialog'))
	$dialog.dialog('close');

	if (!list)
	list = { name:'', editable:true, showalarms:true };

	// fill edit form
	var name = $('#taskedit-tasklistame').prop('disabled', list.norename\|\|false).val(list.editname \|\| list.name),
	alarms = $('#taskedit-showalarms').prop('checked', list.showalarms).get(0),
	parent = $('#taskedit-parentfolder').val(list.parentfolder);

	// dialog buttons
	var buttons = {};

	buttons[rcmail.gettext('save','tasklist')] = function() {
	// do some input validation
	if (!name.val() \|\| name.val().length < 2) {
	alert(rcmail.gettext('invalidlistproperties', 'tasklist'));
	name.select();
	return;
	}

	// post data to server
	var data = editform.serializeJSON();
	if (list.id)
	data.id = list.id;
	if (alarms)
	data.showalarms = alarms.checked ? 1 : 0;
	if (parent.length)
	data.parentfolder = $('option:selected', parent).val();

	saving_lock = rcmail.set_busy(true, 'tasklist.savingdata');
	rcmail.http_post('tasklist', { action:(list.id ? 'edit' : 'new'), l:data });
	$dialog.dialog('close');
	};

	buttons[rcmail.gettext('cancel','tasklist')] = function() {
	$dialog.dialog('close');
	};

	// open jquery UI dialog
	$dialog.dialog({
	modal: true,
	resizable: true,
	closeOnEscape: false,
	title: rcmail.gettext((list.id ? 'editlist' : 'createlist'), 'tasklist'),
	close: function() { $dialog.dialog('destroy').hide(); },
	buttons: buttons,
	minWidth: 400,
	width: 420
	}).show();
	}

	/**
	*
	*/
	function list_remove(id)
	{
	var list = me.tasklists[id];
	if (list && !list.norename && confirm(rcmail.gettext(list.children ? 'deletelistconfirmrecursive' : 'deletelistconfirm', 'tasklist'))) {
	saving_lock = rcmail.set_busy(true, 'tasklist.savingdata');
	rcmail.http_post('tasklist', { action:'remove', l:{ id:list.id } });
	return true;
	}
	return false;
	}

	/**
	* Callback from server to finally remove the given list
	*/
	function destroy_list(prop)
	{
	var li, delete_ids = [],
	list = me.tasklists[prop.id];

	// find sub-lists
	if (list && list.children) {
	for (var child_id in me.tasklists) {
	if (String(child_id).indexOf(prop.id) == 0)
	delete_ids.push(child_id);
	}
	}
	else {
	delete_ids.push(prop.id);
	}

	// delete all calendars in the list
	for (var i=0; i < delete_ids.length; i++) {
	id = delete_ids[i];
	list = me.tasklists[id];
	li = rcmail.get_folder_li(id, 'rcmlitasklist');

	if (li) {
	$(li).remove();
	}
	if (list) {
	list.active = false;
	// delete me.tasklists[prop.id];
	unlock_saving();
	remove_tasks(list.id);
	}
	}
	}

	/**
	*
	*/
	function insert_list(prop)
	{
	var li = $('<li>').attr('id', 'rcmlitasklist'+prop.id)
	.append('<input type="checkbox" name="_list[]" value="'+prop.id+'" checked="checked" />')
	.append('<span class="handle"> </span>')
	.append('<span class="listname">'+Q(prop.name)+'</span>');
	$(rcmail.gui_objects.folderlist).append(li);
	me.tasklists[prop.id] = prop;
	init_tasklist_li(li.get(0), prop.id);
	}

	/**
	*
	*/
	function update_list(prop)
	{
	var id = prop.oldid \|\| prop.id,
	li = rcmail.get_folder_li(id, 'rcmlitasklist');

	if (me.tasklists[id] && li) {
	delete me.tasklists[id];
	me.tasklists[prop.id] = prop;
	$(li).data('id', prop.id);
	$('#'+li.id+' input').data('id', prop.id);
	$('.listname', li).html(Q(prop.name));
	}
	}

	/**
	* Execute search
	*/
	function quicksearch()
	{
	var q;
	if (rcmail.gui_objects.qsearchbox && (q = rcmail.gui_objects.qsearchbox.value)) {
	var id = 'search-'+q;
	var resources = [];

	for (var rid in me.tasklists) {
	if (me.tasklists[rid].active) {
	resources.push(rid);
	}
	}
	id += '@'+resources.join(',');

	// ignore if query didn't change
	if (search_request == id)
	return;

	search_request = id;
	search_query = q;

	list_tasks();
	}
	else // empty search input equals reset
	this.reset_search();
	}

	/**
	* Reset search and get back to normal listing
	*/
	function reset_search()
	{
	$(rcmail.gui_objects.qsearchbox).val('');

	if (search_request) {
	search_request = search_query = null;
	list_tasks();
	}
	}


	/** Utility functions **/

	/**
	* Clear any text selection
	* (text is probably selected when double-clicking somewhere)
	*/
	function clearSelection()
	{
	if (document.selection && document.selection.empty) {
	document.selection.empty() ;
	}
	else if (window.getSelection) {
	var sel = window.getSelection();
	if (sel && sel.removeAllRanges)
	sel.removeAllRanges();
	}
	}

	/**
	* Hide all open popup menus
	*/
	function clear_popups(e)
	{
	var count = 0, target = e.target;
	if (target && target.className == 'inner')
	target = e.target.parentNode;

	$('.popupmenu:visible').each(function(i, elem){
	var menu = $(elem), id = elem.id;
	if (target.id != id+'link' && (!menu.data('sticky') \|\| !target_overlaps(e.target, elem))) {
	menu.hide();
	count++;
	}
	});
	return count;
	}

	/**
	* Check whether the event target is a descentand of the given element
	*/
	function target_overlaps(target, elem)
	{
	while (target.parentNode) {
	if (target.parentNode == elem)
	return true;
	target = target.parentNode;
	}
	return false;
	}

	/**
	*
	*/
	function active_lists()
	{
	var active = [];
	for (var id in me.tasklists) {
	if (me.tasklists[id].active)
	active.push(id);
	}
	return active;
	}

	// resize and reposition (center) the dialog window
	this.dialog_resize = function(id, height, width)
	{
	var win = $(window), w = win.width(), h = win.height();
	$(id).dialog('option', { height: Math.min(h-20, height+130), width: Math.min(w-20, width+50) })
	.dialog('option', 'position', ['center', 'center']); // only works in a separate call (!?)
	};

	/**
	* Register event handlers on a tasklist (folder) item
	*/
	function init_tasklist_li(li, id)
	{
	$('#'+li.id+' input').click(function(e){
	var id = $(this).data('id');
	if (me.tasklists[id]) { // add or remove event source on click
	me.tasklists[id].active = this.checked;
	fetch_counts();
	if (!this.checked) remove_tasks(id);
	else list_tasks(null);
	rcmail.http_post('tasklist', { action:'subscribe', l:{ id:id, active:me.tasklists[id].active?1:0 } });
	}
	}).data('id', id).get(0).checked = me.tasklists[id].active \|\| false;

	$(li).click(function(e){
	var id = $(this).data('id');
	rcmail.select_folder(id, 'rcmlitasklist');
	rcmail.enable_command('list-edit', 'list-remove', 'list-import', me.tasklists[id].editable);
	me.selected_list = id;
	})
	.dblclick(function(e){
	list_edit_dialog($(this).data('id'));
	})
	.data('id', id)
	.data('type', 'tasklist')
	.addClass(me.tasklists[id].editable ? null : 'readonly');
	}


	// init dialog by default
	init_taskedit();
	}


	// extend jQuery
	// from http://james.padolsey.com/javascript/sorting-elements-with-jquery/
	jQuery.fn.sortElements = (function(){
	var sort = [].sort;

	return function(comparator, getSortable) {
	getSortable = getSortable \|\| function(){ return this };

	var last = null;
	return sort.call(this, comparator).each(function(i){
	// at this point the array is sorted, so we can just detach each one from wherever it is, and add it after the last
	var node = $(getSortable.call(this));
	var parent = node.parent();
	if (last) last.after(node);
	else parent.prepend(node);
	last = node;
	});
	};
	})();


	/* tasklist plugin UI initialization */
	var rctasks;
	window.rcmail && rcmail.addEventListener('init', function(evt) {

	rctasks = new rcube_tasklist_ui(rcmail.env.libcal_settings);

	// register button commands
	rcmail.register_command('newtask', function(){ rctasks.edit_task(null, 'new', {}); }, true);
	//rcmail.register_command('print', function(){ rctasks.print_list(); }, true);

	rcmail.register_command('list-create', function(){ rctasks.list_edit_dialog(null); }, true);
	rcmail.register_command('list-edit', function(){ rctasks.list_edit_dialog(rctasks.selected_list); }, false);
	rcmail.register_command('list-remove', function(){ rctasks.list_remove(rctasks.selected_list); }, false);

	rcmail.register_command('search', function(){ rctasks.quicksearch(); }, true);
	rcmail.register_command('reset-search', function(){ rctasks.reset_search(); }, true);
	+ rcmail.register_command('expand-all', function(){ rctasks.expand_collapse(true); }, true);
	+ rcmail.register_command('collapse-all', function(){ rctasks.expand_collapse(false); }, true);

	rctasks.init();
	});
	diff --git a/plugins/tasklist/tasklist.php b/plugins/tasklist/tasklist.php
	index e6b5d1cd..68d82c4f 100644
	--- a/plugins/tasklist/tasklist.php
	+++ b/plugins/tasklist/tasklist.php
	@@ -1,917 +1,919 @@
	<?php

	/**
	* Tasks plugin for Roundcube webmail
	*
	* @version @package_version@
	* @author Thomas Bruederli <bruederli@kolabsys.com>
	*
	* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU Affero General Public License as
	* published by the Free Software Foundation, either version 3 of the
	* License, or (at your option) any later version.
	*
	* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
	*/

	class tasklist extends rcube_plugin
	{
	const FILTER_MASK_TODAY = 1;
	const FILTER_MASK_TOMORROW = 2;
	const FILTER_MASK_WEEK = 4;
	const FILTER_MASK_LATER = 8;
	const FILTER_MASK_NODATE = 16;
	const FILTER_MASK_OVERDUE = 32;
	const FILTER_MASK_FLAGGED = 64;
	const FILTER_MASK_COMPLETE = 128;

	const SESSION_KEY = 'tasklist_temp';

	public static $filter_masks = array(
	'today' => self::FILTER_MASK_TODAY,
	'tomorrow' => self::FILTER_MASK_TOMORROW,
	'week' => self::FILTER_MASK_WEEK,
	'later' => self::FILTER_MASK_LATER,
	'nodate' => self::FILTER_MASK_NODATE,
	'overdue' => self::FILTER_MASK_OVERDUE,
	'flagged' => self::FILTER_MASK_FLAGGED,
	'complete' => self::FILTER_MASK_COMPLETE,
	);

	public $task = '?(?!login\|logout).*';
	public $rc;
	public $lib;
	public $driver;
	public $timezone;
	public $ui;

	private $collapsed_tasks = array();


	/**
	* Plugin initialization.
	*/
	function init()
	{
	$this->require_plugin('libcalendaring');

	$this->rc = rcube::get_instance();
	$this->lib = libcalendaring::get_instance();

	$this->register_task('tasks', 'tasklist');

	// load plugin configuration
	$this->load_config();

	// load localizations
	$this->add_texts('localization/', $this->rc->task == 'tasks' && (!$this->rc->action \|\| $this->rc->action == 'print'));
	$this->rc->load_language($_SESSION['language'], array('tasks.tasks' => $this->gettext('navtitle'))); // add label for task title

	$this->timezone = $this->lib->timezone;

	if ($this->rc->task == 'tasks' && $this->rc->action != 'save-pref') {
	$this->load_driver();

	// register calendar actions
	$this->register_action('index', array($this, 'tasklist_view'));
	$this->register_action('task', array($this, 'task_action'));
	$this->register_action('tasklist', array($this, 'tasklist_action'));
	$this->register_action('counts', array($this, 'fetch_counts'));
	$this->register_action('fetch', array($this, 'fetch_tasks'));
	$this->register_action('inlineui', array($this, 'get_inline_ui'));
	$this->register_action('mail2task', array($this, 'mail_message2task'));
	$this->register_action('get-attachment', array($this, 'attachment_get'));
	$this->register_action('upload', array($this, 'attachment_upload'));
	$this->add_hook('refresh', array($this, 'refresh'));

	$this->collapsed_tasks = array_filter(explode(',', $this->rc->config->get('tasklist_collapsed_tasks', '')));
	}
	else if ($this->rc->task == 'mail') {
	// TODO: register hooks to catch ical/vtodo email attachments
	if ($this->rc->action == 'show' \|\| $this->rc->action == 'preview') {
	// $this->add_hook('message_load', array($this, 'mail_message_load'));
	// $this->add_hook('template_object_messagebody', array($this, 'mail_messagebody_html'));
	}

	// add 'Create event' item to message menu
	if ($this->api->output->type == 'html') {
	$this->api->add_content(html::tag('li', null,
	$this->api->output->button(array(
	'command' => 'tasklist-create-from-mail',
	'label' => 'tasklist.createfrommail',
	'type' => 'link',
	'classact' => 'icon taskaddlink active',
	'class' => 'icon taskaddlink',
	'innerclass' => 'icon taskadd',
	))),
	'messagemenu');
	}
	}

	if (!$this->rc->output->ajax_call && !$this->rc->output->env['framed']) {
	require_once($this->home . '/tasklist_ui.php');
	$this->ui = new tasklist_ui($this);
	$this->ui->init();
	}

	// add hooks for alarms handling
	$this->add_hook('pending_alarms', array($this, 'pending_alarms'));
	$this->add_hook('dismiss_alarms', array($this, 'dismiss_alarms'));
	}


	/**
	* Helper method to load the backend driver according to local config
	*/
	private function load_driver()
	{
	if (is_object($this->driver))
	return;

	$driver_name = $this->rc->config->get('tasklist_driver', 'database');
	$driver_class = 'tasklist_' . $driver_name . '_driver';

	require_once($this->home . '/drivers/tasklist_driver.php');
	require_once($this->home . '/drivers/' . $driver_name . '/' . $driver_class . '.php');

	switch ($driver_name) {
	case "kolab":
	$this->require_plugin('libkolab');
	default:
	$this->driver = new $driver_class($this);
	break;
	}

	$this->rc->output->set_env('tasklist_driver', $driver_name);
	}


	/**
	* Dispatcher for task-related actions initiated by the client
	*/
	public function task_action()
	{
	$filter = intval(get_input_value('filter', RCUBE_INPUT_GPC));
	$action = get_input_value('action', RCUBE_INPUT_GPC);
	$rec = get_input_value('t', RCUBE_INPUT_POST, true);
	$oldrec = $rec;
	$success = $refresh = false;

	switch ($action) {
	case 'new':
	$oldrec = null;
	$rec = $this->prepare_task($rec);
	$rec['uid'] = $this->generate_uid();
	$temp_id = $rec['tempid'];
	if ($success = $this->driver->create_task($rec)) {
	$refresh = $this->driver->get_task($rec);
	if ($temp_id) $refresh['tempid'] = $temp_id;
	$this->cleanup_task($rec);
	}
	break;

	case 'edit':
	$rec = $this->prepare_task($rec);
	if ($success = $this->driver->edit_task($rec)) {
	$refresh = $this->driver->get_task($rec);
	$this->cleanup_task($rec);
	}
	break;

	case 'move':
	foreach ((array)$rec['id'] as $id) {
	$r = $rec;
	$r['id'] = $id;
	if ($this->driver->move_task($r)) {
	$refresh[] = $this->driver->get_task($r);
	$success = true;

	// move all childs, too
	foreach ($this->driver->get_childs(array('id' => $rec['id'], 'list' => $rec['_fromlist'])) as $cid) {
	$child = $rec;
	$child['id'] = $cid;
	if ($this->driver->move_task($child)) {
	$r = $this->driver->get_task($child);
	if ((bool)($filter & self::FILTER_MASK_COMPLETE) == ($r['complete'] == 1.0)) {
	$refresh[] = $r;
	}
	}
	}
	}
	}
	break;

	case 'delete':
	$mode = intval(get_input_value('mode', RCUBE_INPUT_POST));
	$oldrec = $this->driver->get_task($rec);
	if ($success = $this->driver->delete_task($rec, false)) {
	// delete/modify all childs
	foreach ($this->driver->get_childs($rec, $mode) as $cid) {
	$child = array('id' => $cid, 'list' => $rec['list']);

	if ($mode == 1) { // delete all childs
	if ($this->driver->delete_task($child, false)) {
	if ($this->driver->undelete)
	$_SESSION['tasklist_undelete'][$rec['id']][] = $cid;
	}
	else
	$success = false;
	}
	else {
	$child['parent_id'] = strval($oldrec['parent_id']);
	$this->driver->edit_task($child);
	}
	}
	}

	if (!$success)
	$this->rc->output->command('plugin.reload_data');
	break;

	case 'undelete':
	if ($success = $this->driver->undelete_task($rec)) {
	$refresh[] = $this->driver->get_task($rec);
	foreach ((array)$_SESSION['tasklist_undelete'][$rec['id']] as $cid) {
	if ($this->driver->undelete_task($rec)) {
	$refresh[] = $this->driver->get_task($rec);
	}
	}
	}
	break;

	case 'collapse':
	- if (intval(get_input_value('collapsed', RCUBE_INPUT_GPC))) {
	- $this->collapsed_tasks[] = $rec['id'];
	- }
	- else {
	- $i = array_search($rec['id'], $this->collapsed_tasks);
	- if ($i !== false)
	- unset($this->collapsed_tasks[$i]);
	+ foreach (explode(',', $rec['id']) as $rec_id) {
	+ if (intval(get_input_value('collapsed', RCUBE_INPUT_GPC))) {
	+ $this->collapsed_tasks[] = $rec_id;
	+ }
	+ else {
	+ $i = array_search($rec_id, $this->collapsed_tasks);
	+ if ($i !== false)
	+ unset($this->collapsed_tasks[$i]);
	+ }
	}

	$this->rc->user->save_prefs(array('tasklist_collapsed_tasks' => join(',', array_unique($this->collapsed_tasks))));
	return; // avoid further actions
	}

	if ($success) {
	$this->rc->output->show_message('successfullysaved', 'confirmation');
	$this->update_counts($oldrec, $refresh);
	}
	else
	$this->rc->output->show_message('tasklist.errorsaving', 'error');

	// unlock client
	$this->rc->output->command('plugin.unlock_saving');

	if ($refresh) {
	if ($refresh['id']) {
	$this->encode_task($refresh);
	}
	else if (is_array($refresh)) {
	foreach ($refresh as $i => $r)
	$this->encode_task($refresh[$i]);
	}
	$this->rc->output->command('plugin.refresh_task', $refresh);
	}
	}

	/**
	* repares new/edited task properties before save
	*/
	private function prepare_task($rec)
	{
	// try to be smart and extract date from raw input
	if ($rec['raw']) {
	foreach (array('today','tomorrow','sunday','monday','tuesday','wednesday','thursday','friday','saturday','sun','mon','tue','wed','thu','fri','sat') as $word) {
	$locwords[] = '/^' . preg_quote(mb_strtolower($this->gettext($word))) . '\b/i';
	$normwords[] = $word;
	$datewords[] = $word;
	}
	foreach (array('jan','feb','mar','apr','may','jun','jul','aug','sep','oct','now','dec') as $month) {
	$locwords[] = '/(' . preg_quote(mb_strtolower($this->gettext('long'.$month))) . '\|' . preg_quote(mb_strtolower($this->gettext($month))) . ')\b/i';
	$normwords[] = $month;
	$datewords[] = $month;
	}
	foreach (array('on','this','next','at') as $word) {
	$fillwords[] = preg_quote(mb_strtolower($this->gettext($word)));
	$fillwords[] = $word;
	}

	$raw = trim($rec['raw']);
	$date_str = '';

	// translate localized keywords
	$raw = preg_replace('/^(' . join('\|', $fillwords) . ')\s*/i', '', $raw);
	$raw = preg_replace($locwords, $normwords, $raw);

	// find date pattern
	$date_pattern = '!^(\d+[./-]\s*)?((?:\d+[./-])\|' . join('\|', $datewords) . ')\.?(\s+\d{4})?[:;,]?\s+!i';
	if (preg_match($date_pattern, $raw, $m)) {
	$date_str .= $m[1] . $m[2] . $m[3];
	$raw = preg_replace(array($date_pattern, '/^(' . join('\|', $fillwords) . ')\s*/i'), '', $raw);
	// add year to date string
	if ($m[1] && !$m[3])
	$date_str .= date('Y');
	}

	// find time pattern
	$time_pattern = '/^(\d+([:.]\d+)?(\s*[hapm.]+)?),?\s+/i';
	if (preg_match($time_pattern, $raw, $m)) {
	$has_time = true;
	$date_str .= ($date_str ? ' ' : 'today ') . $m[1];
	$raw = preg_replace($time_pattern, '', $raw);
	}

	// yes, raw input matched a (valid) date
	if (strlen($date_str) && strtotime($date_str) && ($date = new DateTime($date_str, $this->timezone))) {
	$rec['date'] = $date->format('Y-m-d');
	if ($has_time)
	$rec['time'] = $date->format('H:i');
	$rec['title'] = $raw;
	}
	else
	$rec['title'] = $rec['raw'];
	}

	// normalize input from client
	if (isset($rec['complete'])) {
	$rec['complete'] = floatval($rec['complete']);
	if ($rec['complete'] > 1)
	$rec['complete'] /= 100;
	}
	if (isset($rec['flagged']))
	$rec['flagged'] = intval($rec['flagged']);

	// fix for garbage input
	if ($rec['description'] == 'null')
	$rec['description'] = '';

	foreach ($rec as $key => $val) {
	if ($val === 'null')
	$rec[$key] = null;
	}

	if (!empty($rec['date'])) {
	try {
	$date = new DateTime($rec['date'] . ' ' . $rec['time'], $this->timezone);
	$rec['date'] = $date->format('Y-m-d');
	if (!empty($rec['time']))
	$rec['time'] = $date->format('H:i');
	}
	catch (Exception $e) {
	$rec['date'] = $rec['time'] = null;
	}
	}

	if (!empty($rec['startdate'])) {
	try {
	$date = new DateTime($rec['startdate'] . ' ' . $rec['starttime'], $this->timezone);
	$rec['startdate'] = $date->format('Y-m-d');
	if (!empty($rec['starttime']))
	$rec['starttime'] = $date->format('H:i');
	}
	catch (Exception $e) {
	$rec['startdate'] = $rec['starttime'] = null;
	}
	}

	// alarms cannot work without a date
	if ($rec['alarms'] && !$rec['date'] && !$rec['startdate'] && strpos($rec['alarms'], '@') === false)
	$rec['alarms'] = '';

	$attachments = array();
	$taskid = $rec['id'];
	if (is_array($_SESSION[self::SESSION_KEY]) && $_SESSION[self::SESSION_KEY]['id'] == $taskid) {
	if (!empty($_SESSION[self::SESSION_KEY]['attachments'])) {
	foreach ($_SESSION[self::SESSION_KEY]['attachments'] as $id => $attachment) {
	if (is_array($rec['attachments']) && in_array($id, $rec['attachments'])) {
	$attachments[$id] = $this->rc->plugins->exec_hook('attachment_get', $attachment);
	unset($attachments[$id]['abort'], $attachments[$id]['group']);
	}
	}
	}
	}

	$rec['attachments'] = $attachments;

	if (is_numeric($rec['id']) && $rec['id'] < 0)
	unset($rec['id']);

	return $rec;
	}


	/**
	* Releases some resources after successful save
	*/
	private function cleanup_task(&$rec)
	{
	// remove temp. attachment files
	if (!empty($_SESSION[self::SESSION_KEY]) && ($taskid = $_SESSION[self::SESSION_KEY]['id'])) {
	$this->rc->plugins->exec_hook('attachments_cleanup', array('group' => $taskid));
	$this->rc->session->remove(self::SESSION_KEY);
	}
	}


	/**
	* Dispatcher for tasklist actions initiated by the client
	*/
	public function tasklist_action()
	{
	$action = get_input_value('action', RCUBE_INPUT_GPC);
	$list = get_input_value('l', RCUBE_INPUT_POST, true);
	$success = false;

	if (isset($list['showalarms']))
	$list['showalarms'] = intval($list['showalarms']);

	switch ($action) {
	case 'new':
	$list += array('showalarms' => true, 'active' => true, 'editable' => true);
	if ($insert_id = $this->driver->create_list($list)) {
	$list['id'] = $insert_id;
	$this->rc->output->command('plugin.insert_tasklist', $list);
	$success = true;
	}
	break;

	case 'edit':
	if ($newid = $this->driver->edit_list($list)) {
	$list['oldid'] = $list['id'];
	$list['id'] = $newid;
	$this->rc->output->command('plugin.update_tasklist', $list);
	$success = true;
	}
	break;

	case 'subscribe':
	$success = $this->driver->subscribe_list($list);
	break;

	case 'remove':
	if (($success = $this->driver->remove_list($list)))
	$this->rc->output->command('plugin.destroy_tasklist', $list);
	break;
	}

	if ($success)
	$this->rc->output->show_message('successfullysaved', 'confirmation');
	else
	$this->rc->output->show_message('tasklist.errorsaving', 'error');

	$this->rc->output->command('plugin.unlock_saving');
	}

	/**
	* Get counts for active tasks divided into different selectors
	*/
	public function fetch_counts()
	{
	if (isset($_REQUEST['lists'])) {
	$lists = get_input_value('lists', RCUBE_INPUT_GPC);
	}
	else {
	foreach ($this->driver->get_lists() as $list) {
	if ($list['active'])
	$lists[] = $list['id'];
	}
	}
	$counts = $this->driver->count_tasks($lists);
	$this->rc->output->command('plugin.update_counts', $counts);
	}

	/**
	* Adjust the cached counts after changing a task
	*/
	public function update_counts($oldrec, $newrec)
	{
	// rebuild counts until this function is finally implemented
	$this->fetch_counts();

	// $this->rc->output->command('plugin.update_counts', $counts);
	}

	/**
	*
	*/
	public function fetch_tasks()
	{
	$f = intval(get_input_value('filter', RCUBE_INPUT_GPC));
	$search = get_input_value('q', RCUBE_INPUT_GPC);
	$filter = array('mask' => $f, 'search' => $search);
	$lists = get_input_value('lists', RCUBE_INPUT_GPC);;
	/*
	// convert magic date filters into a real date range
	switch ($f) {
	case self::FILTER_MASK_TODAY:
	$today = new DateTime('now', $this->timezone);
	$filter['from'] = $filter['to'] = $today->format('Y-m-d');
	break;

	case self::FILTER_MASK_TOMORROW:
	$tomorrow = new DateTime('now + 1 day', $this->timezone);
	$filter['from'] = $filter['to'] = $tomorrow->format('Y-m-d');
	break;

	case self::FILTER_MASK_OVERDUE:
	$yesterday = new DateTime('yesterday', $this->timezone);
	$filter['to'] = $yesterday->format('Y-m-d');
	break;

	case self::FILTER_MASK_WEEK:
	$today = new DateTime('now', $this->timezone);
	$filter['from'] = $today->format('Y-m-d');
	$weekend = new DateTime('now + 7 days', $this->timezone);
	$filter['to'] = $weekend->format('Y-m-d');
	break;

	case self::FILTER_MASK_LATER:
	$date = new DateTime('now + 8 days', $this->timezone);
	$filter['from'] = $date->format('Y-m-d');
	break;

	}
	*/
	$data = $this->tasks_data($this->driver->list_tasks($filter, $lists), $f, $tags);
	$this->rc->output->command('plugin.data_ready', array('filter' => $f, 'lists' => $lists, 'search' => $search, 'data' => $data, 'tags' => array_values(array_unique($tags))));
	}

	/**
	* Prepare and sort the given task records to be sent to the client
	*/
	private function tasks_data($records, $f, &$tags)
	{
	$data = $tags = $this->task_tree = $this->task_titles = array();
	foreach ($records as $rec) {
	if ($rec['parent_id']) {
	$this->task_tree[$rec['id']] = $rec['parent_id'];
	}
	$this->encode_task($rec);
	if (!empty($rec['tags']))
	$tags = array_merge($tags, (array)$rec['tags']);

	// apply filter; don't trust the driver on this :-)
	if ((!$f && $rec['complete'] < 1.0) \|\| ($rec['mask'] & $f))
	$data[] = $rec;
	}

	// sort tasks according to their hierarchy level and due date
	array_walk($data, array($this, 'task_walk_tree'));
	usort($data, array($this, 'task_sort_cmp'));

	return $data;
	}

	/**
	* Prepare the given task record before sending it to the client
	*/
	private function encode_task(&$rec)
	{
	$rec['mask'] = $this->filter_mask($rec);
	$rec['flagged'] = intval($rec['flagged']);
	$rec['complete'] = floatval($rec['complete']);
	$rec['changed'] = is_object($rec['changed']) ? $rec['changed']->format('U') : null;

	if ($rec['date']) {
	try {
	$date = new DateTime($rec['date'] . ' ' . $rec['time'], $this->timezone);
	$rec['datetime'] = intval($date->format('U'));
	$rec['date'] = $date->format($this->rc->config->get('date_format', 'Y-m-d'));
	$rec['_hasdate'] = 1;
	}
	catch (Exception $e) {
	$rec['date'] = $rec['datetime'] = null;
	}
	}
	else {
	$rec['date'] = $rec['datetime'] = null;
	$rec['_hasdate'] = 0;
	}

	if ($rec['startdate']) {
	try {
	$date = new DateTime($rec['startdate'] . ' ' . $rec['starttime'], $this->timezone);
	$rec['startdatetime'] = intval($date->format('U'));
	$rec['startdate'] = $date->format($this->rc->config->get('date_format', 'Y-m-d'));
	}
	catch (Exception $e) {
	$rec['startdate'] = $rec['startdatetime'] = null;
	}
	}

	if ($rec['alarms'])
	$rec['alarms_text'] = libcalendaring::alarms_text($rec['alarms']);

	foreach ((array)$rec['attachments'] as $k => $attachment) {
	$rec['attachments'][$k]['classname'] = rcube_utils::file2class($attachment['mimetype'], $attachment['name']);
	}

	if (!is_array($rec['tags']))
	$rec['tags'] = (array)$rec['tags'];
	sort($rec['tags'], SORT_LOCALE_STRING);

	if (in_array($rec['id'], $this->collapsed_tasks))
	$rec['collapsed'] = true;

	$this->task_titles[$rec['id']] = $rec['title'];
	}

	/**
	* Callback function for array_walk over all tasks.
	* Sets tree depth and parent titles
	*/
	private function task_walk_tree(&$rec)
	{
	$rec['_depth'] = 0;
	$parent_id = $this->task_tree[$rec['id']];
	while ($parent_id) {
	$rec['_depth']++;
	$rec['parent_title'] = $this->task_titles[$parent_id];
	$parent_id = $this->task_tree[$parent_id];
	}
	}

	/**
	* Compare function for task list sorting.
	* Nested tasks need to be sorted to the end.
	*/
	private function task_sort_cmp($a, $b)
	{
	$d = $a['_depth'] - $b['_depth'];
	if (!$d) $d = $b['_hasdate'] - $a['_hasdate'];
	if (!$d) $d = $a['datetime'] - $b['datetime'];
	return $d;
	}

	/**
	* Compute the filter mask of the given task
	*
	* @param array Hash array with Task record properties
	* @return int Filter mask
	*/
	public function filter_mask($rec)
	{
	static $today, $tomorrow, $weeklimit;

	if (!$today) {
	$today_date = new DateTime('now', $this->timezone);
	$today = $today_date->format('Y-m-d');
	$tomorrow_date = new DateTime('now + 1 day', $this->timezone);
	$tomorrow = $tomorrow_date->format('Y-m-d');
	$week_date = new DateTime('now + 7 days', $this->timezone);
	$weeklimit = $week_date->format('Y-m-d');
	}

	$mask = 0;
	$start = $rec['startdate'] ?: '1900-00-00';
	$duedate = $rec['date'] ?: '3000-00-00';

	if ($rec['flagged'])
	$mask \|= self::FILTER_MASK_FLAGGED;
	if ($rec['complete'] == 1.0)
	$mask \|= self::FILTER_MASK_COMPLETE;

	if (empty($rec['date']))
	$mask \|= self::FILTER_MASK_NODATE;
	else if ($rec['date'] < $today)
	$mask \|= self::FILTER_MASK_OVERDUE;

	if ($duedate <= $today \|\| ($rec['startdate'] && $start <= $today))
	$mask \|= self::FILTER_MASK_TODAY;
	if ($duedate <= $tomorrow \|\| ($rec['startdate'] && $start <= $tomorrow))
	$mask \|= self::FILTER_MASK_TOMORROW;
	if ($start > $tomorrow \|\| ($duedate > $tomorrow && $duedate <= $weeklimit))
	$mask \|= self::FILTER_MASK_WEEK;
	if ($start > $weeklimit \|\| ($rec['date'] && $duedate > $weeklimit))
	$mask \|= self::FILTER_MASK_LATER;

	return $mask;
	}


	/***** UI functions ******/

	/**
	* Render main view of the tasklist task
	*/
	public function tasklist_view()
	{
	$this->ui->init();
	$this->ui->init_templates();
	$this->rc->output->set_pagetitle($this->gettext('navtitle'));
	$this->rc->output->send('tasklist.mainview');
	}


	/**
	*
	*/
	public function get_inline_ui()
	{
	foreach (array('save','cancel','savingdata') as $label)
	$texts['tasklist.'.$label] = $this->gettext($label);

	$texts['tasklist.newtask'] = $this->gettext('createfrommail');

	$this->ui->init_templates();
	echo $this->api->output->parse('tasklist.taskedit', false, false);
	echo html::tag('script', array('type' => 'text/javascript'),
	"rcmail.set_env('tasklists', " . json_encode($this->api->output->env['tasklists']) . ");\n".
	// "rcmail.set_env('deleteicon', '" . $this->api->output->env['deleteicon'] . "');\n".
	// "rcmail.set_env('cancelicon', '" . $this->api->output->env['cancelicon'] . "');\n".
	// "rcmail.set_env('loadingicon', '" . $this->api->output->env['loadingicon'] . "');\n".
	"rcmail.add_label(" . json_encode($texts) . ");\n"
	);
	exit;
	}

	/**
	* Handler for keep-alive requests
	* This will check for updated data in active lists and sync them to the client
	*/
	public function refresh($attr)
	{
	$filter = array(
	'since' => $attr['last'],
	'search' => get_input_value('q', RCUBE_INPUT_GPC),
	'mask' => intval(get_input_value('filter', RCUBE_INPUT_GPC)) & self::FILTER_MASK_COMPLETE,
	);
	$lists = get_input_value('lists', RCUBE_INPUT_GPC);;

	$updates = $this->driver->list_tasks($filter, $lists);
	if (!empty($updates)) {
	$this->rc->output->command('plugin.refresh_task', $this->tasks_data($updates, 255, $tags));

	// update counts
	$counts = $this->driver->count_tasks($lists);
	$this->rc->output->command('plugin.update_counts', $counts);
	}
	}

	/**
	* Handler for pending_alarms plugin hook triggered by the calendar module on keep-alive requests.
	* This will check for pending notifications and pass them to the client
	*/
	public function pending_alarms($p)
	{
	$this->load_driver();
	if ($alarms = $this->driver->pending_alarms($p['time'] ?: time())) {
	foreach ($alarms as $alarm) {
	// encode alarm object to suit the expectations of the calendaring code
	if ($alarm['date'])
	$alarm['start'] = new DateTime($alarm['date'].' '.$alarm['time'], $this->timezone);

	$alarm['id'] = 'task:' . $alarm['id']; // prefix ID with task:
	$alarm['allday'] = empty($alarm['time']) ? 1 : 0;
	$p['alarms'][] = $alarm;
	}
	}

	return $p;
	}

	/**
	* Handler for alarm dismiss hook triggered by the calendar module
	*/
	public function dismiss_alarms($p)
	{
	$this->load_driver();
	foreach ((array)$p['ids'] as $id) {
	if (strpos($id, 'task:') === 0)
	$p['success'] \|= $this->driver->dismiss_alarm(substr($id, 5), $p['snooze']);
	}

	return $p;
	}


	/***** Attachment handling *****/

	/**
	* Handler for attachments upload
	*/
	public function attachment_upload()
	{
	$this->lib->attachment_upload(self::SESSION_KEY);
	}

	/**
	* Handler for attachments download/displaying
	*/
	public function attachment_get()
	{
	// show loading page
	if (!empty($_GET['_preload'])) {
	return $this->lib->attachment_loading_page();
	}

	$task = get_input_value('_t', RCUBE_INPUT_GPC);
	$list = get_input_value('_list', RCUBE_INPUT_GPC);
	$id = get_input_value('_id', RCUBE_INPUT_GPC);

	$task = array('id' => $task, 'list' => $list);
	$attachment = $this->driver->get_attachment($id, $task);

	// show part page
	if (!empty($_GET['_frame'])) {
	$this->lib->attachment = $attachment;
	$this->register_handler('plugin.attachmentframe', array($this->lib, 'attachment_frame'));
	$this->register_handler('plugin.attachmentcontrols', array($this->lib, 'attachment_header'));
	$this->rc->output->send('tasklist.attachment');
	}
	// deliver attachment content
	else if ($attachment) {
	$attachment['body'] = $this->driver->get_attachment_body($id, $task);
	$this->lib->attachment_get($attachment);
	}

	// if we arrive here, the requested part was not found
	header('HTTP/1.1 404 Not Found');
	exit;
	}


	/***** Email related function *****/

	public function mail_message2task()
	{
	$uid = get_input_value('_uid', RCUBE_INPUT_POST);
	$mbox = get_input_value('_mbox', RCUBE_INPUT_POST);
	$task = array();

	// establish imap connection
	$imap = $this->rc->get_storage();
	$imap->set_mailbox($mbox);
	$message = new rcube_message($uid);

	if ($message->headers) {
	$task['title'] = trim($message->subject);
	$task['description'] = trim($message->first_text_part());
	$task['id'] = -$uid;

	$this->load_driver();

	// copy mail attachments to task
	if ($message->attachments && $this->driver->attachments) {
	if (!is_array($_SESSION[self::SESSION_KEY]) \|\| $_SESSION[self::SESSION_KEY]['id'] != $task['id']) {
	$_SESSION[self::SESSION_KEY] = array();
	$_SESSION[self::SESSION_KEY]['id'] = $task['id'];
	$_SESSION[self::SESSION_KEY]['attachments'] = array();
	}

	foreach ((array)$message->attachments as $part) {
	$attachment = array(
	'data' => $imap->get_message_part($uid, $part->mime_id, $part),
	'size' => $part->size,
	'name' => $part->filename,
	'mimetype' => $part->mimetype,
	'group' => $task['id'],
	);

	$attachment = $this->rc->plugins->exec_hook('attachment_save', $attachment);

	if ($attachment['status'] && !$attachment['abort']) {
	$id = $attachment['id'];
	$attachment['classname'] = rcube_utils::file2class($attachment['mimetype'], $attachment['name']);

	// store new attachment in session
	unset($attachment['status'], $attachment['abort'], $attachment['data']);
	$_SESSION[self::SESSION_KEY]['attachments'][$id] = $attachment;

	$attachment['id'] = 'rcmfile' . $attachment['id']; // add prefix to consider it 'new'
	$task['attachments'][] = $attachment;
	}
	}
	}

	$this->rc->output->command('plugin.mail2taskdialog', $task);
	}
	else {
	$this->rc->output->command('display_message', $this->gettext('messageopenerror'), 'error');
	}

	$this->rc->output->send();
	}


	/***** Utility functions *****/

	/**
	* Generate a unique identifier for an event
	*/
	public function generate_uid()
	{
	return strtoupper(md5(time() . uniqid(rand())) . '-' . substr(md5($this->rc->user->get_username()), 0, 16));
	}

	}

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