9 files changed, 116 insertions, 41 deletions
diff --git a/skins/larry/addressbook.css b/skins/larry/addressbook.css
index a1c453885..ff3951497 100644
--- a/skins/larry/addressbook.css
+++ b/skins/larry/addressbook.css
@@ -83,10 +83,23 @@
 	background-position: 6px -766px;
 }
 
-#directorylist li.addressbook.selected a {
+#directorylist li.addressbook.selected > a {
 	background-position: 6px -791px;
 }
 
+#directorylist li.addressbook ul li:last-child {
+	border-bottom: 0;
+}
+
+#directorylist li.addressbook ul.groups {
+	margin: 0;
+	padding: 0;
+}
+
+#directorylist li.addressbook ul.groups li {
+	width: 100%;
+}
+
 #directorylist li.contactgroup a {
 	padding-left: 62px;
 	background-position: 32px -1555px;
@@ -112,6 +125,12 @@
 	margin-left: 8px;
 }
 
+#directorylist li.addressbook div.collapsed,
+#directorylist li.addressbook div.expanded {
+	top: 15px;
+	left: 20px;
+}
+
 #contacts-table .contact td.name {
 	background-position: 6px -1603px;
 }
diff --git a/skins/larry/includes/footer.html b/skins/larry/includes/footer.html
index ee93fcf57..a4fa69296 100644
--- a/skins/larry/includes/footer.html
+++ b/skins/larry/includes/footer.html
@@ -8,4 +8,16 @@ $(document).ready(function(){
 });
 
 </script>
+<!--[if lte IE 8]>
+<script type="text/javascript">
+
+// fix missing :last-child selectors
+$(document).ready(function(){
+	$('ul.treelist ul').each(function(i,ul){
+		$('li:last-child', ul).css('border-bottom', 0);
+	});
+});
+
+</script>
+<![endif]-->
 
diff --git a/skins/larry/mail.css b/skins/larry/mail.css
index b98a89c8b..c99370830 100644
--- a/skins/larry/mail.css
+++ b/skins/larry/mail.css
@@ -141,7 +141,7 @@ a.iconbutton.threadmode.selected {
 	background-position: 6px 2px;
 }
 
-#mailboxlist li:first-child {
+#mailboxlist > li:first-child {
 	border-radius: 4px 4px 0 0;
 	border-top: 0;
 }
@@ -156,7 +156,7 @@ a.iconbutton.threadmode.selected {
 	background-position: 6px 3px;
 }
 
-#mailboxlist li.mailbox.unread a {
+#mailboxlist li.mailbox.unread > a {
 	padding-right: 36px;
 }
 
@@ -224,6 +224,17 @@ a.iconbutton.threadmode.selected {
 	color: #017cb4;
 }
 
+#mailboxlist li.mailbox div.treetoggle {
+	top: 13px;
+	left: 19px;
+}
+
+#mailboxlist li.mailbox ul li:last-child {
+	border-bottom: 0;
+}
+
+/* nested mailboxes */
+
 #mailboxlist li.mailbox ul {
 	list-style: none;
 	margin: 0;
@@ -231,50 +242,57 @@ a.iconbutton.threadmode.selected {
 	border-top: 1px solid #bbd3da;
 }
 
-#mailboxlist li.mailbox ul li {
-	padding-left: 26px;
-}
-
 #mailboxlist li.mailbox ul li a {
-	background-position: 6px -93px;
+	padding-left: 52px;  /* 36 + 1 x 16 */
+	background-position: 22px -93px;  /* 6 + 1 x 16 */
 }
-
 #mailboxlist li.mailbox ul li.selected > a {
-	background-position: 6px -117px;
+	background-position: 22px -117px;
 }
-
-#mailboxlist li.mailbox ul li:last-child {
-	border-bottom: 0;
+#mailboxlist li.mailbox ul li div.treetoggle {
+	left: 33px;
+	top: 14px;
 }
 
-#mailboxlist li.mailbox div.collapsed,
-#mailboxlist li.mailbox div.expanded {
-	position: absolute;
-	top: 13px;
-	left: 19px;
-	width: 13px;
-	height: 13px;
-	background: url(images/listicons.png) -3px -144px no-repeat;
-	cursor: pointer;
+#mailboxlist li.mailbox ul ul li.mailbox a {
+	padding-left: 68px;  /* 2x */
+	background-position: 38px -93px;
 }
-
-#mailboxlist li.mailbox div.expanded {
-	background-position: -3px -168px;
+#mailboxlist li.mailbox ul ul li.selected > a {
+	background-position: 38px -117px;
 }
-
-#mailboxlist li.mailbox.selected > div.collapsed {
-	background-position: -23px -144px;
+#mailboxlist li.mailbox ul ul li div.treetoggle {
+	left: 48px;
 }
 
-#mailboxlist li.mailbox.selected > div.expanded {
-	background-position: -23px -168px;
+#mailboxlist li.mailbox ul ul ul li.mailbox a {
+	padding-left: 84px;  /* 3x */
+	background-position: 54px -93px;
+}
+#mailboxlist li.mailbox ul ul ul li.selected > a {
+	background-position: 54px -117px;
+}
+#mailboxlist li.mailbox ul ul ul li div.treetoggle {
+	left: 64px;
 }
 
+#mailboxlist li.mailbox ul ul ul ul li.mailbox a {
+	padding-left: 100px;  /* 4x */
+	background-position: 70px -93px;
+}
+#mailboxlist li.mailbox ul ul ul ul li.selected > a {
+	background-position: 70px -117px;
+}
+#mailboxlist li.mailbox ul ul ul ul li div.treetoggle {
+	left: 80px;
+}
 
-#mailboxlist li.mailbox ul li div.collapsed,
-#mailboxlist li.mailbox ul li div.expanded {
-	left: 43px;
-	top: 14px;
+/* indent folders on levels > 4 */
+#mailboxlist li.mailbox ul ul ul ul ul li {
+	padding-left: 16px;
+}
+#mailboxlist li.mailbox ul ul ul ul ul li div.treetoggle {
+	left: 96px;
 }
 
 #mailboxlist li.mailbox .unreadcount {
diff --git a/skins/larry/styles.css b/skins/larry/styles.css
index f7adeba38..7458ebba9 100644
--- a/skins/larry/styles.css
+++ b/skins/larry/styles.css
@@ -986,6 +986,10 @@ ul.listing li {
 	background-color: #d9ecf4;
 }
 
+ul.listing li ul {
+	border-top: 1px solid #bbd3da;
+}
+
 ul.listing li.droptarget,
 table.listing tr.droptarget td {
 	background-color: #e8e798;
@@ -1002,6 +1006,28 @@ table.layout td {
 	vertical-align: top;
 }
 
+ul.treelist li div.treetoggle {
+	position: absolute;
+	top: 13px;
+	left: 19px;
+	width: 13px;
+	height: 13px;
+	background: url(images/listicons.png) -3px -144px no-repeat;
+	cursor: pointer;
+}
+
+ul.treelist li div.treetoggle.expanded {
+	background-position: -3px -168px;
+}
+
+ul.treelist li.selected > div.collapsed {
+	background-position: -23px -144px;
+}
+
+ul.treelist li.selected > div.expanded {
+	background-position: -23px -168px;
+}
+
 .listbox .boxfooter {
 	position: absolute;
 	bottom: 0;
diff --git a/skins/larry/templates/addressbook.html b/skins/larry/templates/addressbook.html
index 390f8d83b..401640f1f 100644
--- a/skins/larry/templates/addressbook.html
+++ b/skins/larry/templates/addressbook.html
@@ -30,7 +30,7 @@
 <div id="directorylistbox" class="uibox listbox">
 <h2 id="directorylist-header" class="boxtitle"><roundcube:label name="groups" /></h2>
 <div id="directorylist-content" class="scroller withfooter">
-	<roundcube:object name="directorylist" id="directorylist" class="listing" />
+	<roundcube:object name="directorylist" id="directorylist" class="treelist listing" />
 </div>
 <div id="directorylist-footer" class="boxfooter">
 	<roundcube:button command="group-create" type="link" title="newcontactgroup" class="listbutton add disabled" classAct="listbutton add" innerClass="inner" content="+" /><roundcube:button name="groupoptions" id="groupoptionslink" type="link" title="moreactions" class="listbutton groupactions" onclick="UI.show_popup('groupoptions');return false" innerClass="inner" content="&#9881;" />
diff --git a/skins/larry/templates/mail.html b/skins/larry/templates/mail.html
index e145ddff8..85cd5203b 100644
--- a/skins/larry/templates/mail.html
+++ b/skins/larry/templates/mail.html
@@ -30,7 +30,7 @@
 <div id="folderlist-header"></div>
 <div id="mailboxcontainer" class="uibox listbox">
 <div id="folderlist-content" class="scroller withfooter">
-<roundcube:object name="mailboxlist" id="mailboxlist" class="listing" folder_filter="mail" unreadwrap="%s" />
+<roundcube:object name="mailboxlist" id="mailboxlist" class="treelist listing" folder_filter="mail" unreadwrap="%s" />
 </div>
 <div id="folderlist-footer" class="boxfooter">
 	<roundcube:button name="mailboxmenulink" id="mailboxmenulink" type="link" title="folderactions" class="listbutton groupactions" onclick="UI.show_popup('mailboxmenu');return false" innerClass="inner" content="&#9881;" />
diff --git a/skins/larry/templates/message.html b/skins/larry/templates/message.html
index ae77c0dc0..b4ceb6a6c 100644
--- a/skins/larry/templates/message.html
+++ b/skins/larry/templates/message.html
@@ -28,7 +28,7 @@
 <!-- folders list -->
 <div id="mailboxcontainer" class="uibox listbox">
 <div class="scroller">
-<roundcube:object name="mailboxlist" id="mailboxlist" class="listing" folder_filter="mail" unreadwrap="%s" />
+<roundcube:object name="mailboxlist" id="mailboxlist" class="treelist listing" folder_filter="mail" unreadwrap="%s" />
 </div>
 </div>
 
diff --git a/skins/larry/templates/messageerror.html b/skins/larry/templates/messageerror.html
index 3c3c9acdb..a735d47f2 100644
--- a/skins/larry/templates/messageerror.html
+++ b/skins/larry/templates/messageerror.html
@@ -28,7 +28,7 @@
 <!-- folders list -->
 <div id="mailboxcontainer" class="uibox listbox">
 <div class="scroller">
-	<roundcube:object name="mailboxlist" id="mailboxlist" class="listing" folder_filter="mail" unreadwrap="%s" />
+	<roundcube:object name="mailboxlist" id="mailboxlist" class="treelist listing" folder_filter="mail" unreadwrap="%s" />
 </div>
 </div>
 
diff --git a/skins/larry/ui.js b/skins/larry/ui.js
index d2faa3611..d2638bbca 100644
--- a/skins/larry/ui.js
+++ b/skins/larry/ui.js
@@ -1,7 +1,7 @@
 /**
  * Roundcube functions for default skin interface
  *
- * Copyright (c) 2011, The Roundcube Dev Team
+ * Copyright (c) 2013, The Roundcube Dev Team
  *
  * The contents are subject to the Creative Commons Attribution-ShareAlike
  * License. It is allowed to copy, distribute, transmit and to adapt the work
@@ -940,11 +940,11 @@ function rcube_scroller(list, top, bottom)
   this.delay = 500;
 
   this.top
-    .mouseenter(function() { ref.ts = window.setTimeout(function() { ref.scroll('down'); }, ref.delay); })
+    .mouseenter(function() { if (rcmail.drag_active) ref.ts = window.setTimeout(function() { ref.scroll('down'); }, ref.delay); })
     .mouseout(function() { if (ref.ts) window.clearTimeout(ref.ts); });
 
   this.bottom
-    .mouseenter(function() { ref.ts = window.setTimeout(function() { ref.scroll('up'); }, ref.delay); })
+    .mouseenter(function() { if (rcmail.drag_active) ref.ts = window.setTimeout(function() { ref.scroll('up'); }, ref.delay); })
     .mouseout(function() { if (ref.ts) window.clearTimeout(ref.ts); });
 
   this.scroll = function(dir)