From 3ebac0167bf20104fb7a2a55934765117760264c Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Mon, 18 Aug 2014 03:53:18 -0400
Subject: [PATCH] Only add zen-mode text labels in compose step

---
 program/js/app.js | 2001 +++++++++++++++++++++++++++-------------------------------
 1 files changed, 927 insertions(+), 1,074 deletions(-)

diff --git a/program/js/app.js b/program/js/app.js
index ea7265d..a8e66e2 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -46,12 +46,12 @@
   this.messages = {};
   this.group2expand = {};
   this.http_request_jobs = {};
-  this.menu_stack = new Array();
+  this.menu_stack = [];
 
   // webmail client settings
   this.dblclick_time = 500;
   this.message_time = 5000;
-  this.identifier_expr = new RegExp('[^0-9a-z\-_]', 'gi');
+  this.identifier_expr = /[^0-9a-z_-]/gi;
 
   // environment defaults
   this.env = {
@@ -78,7 +78,7 @@
   });
 
   // unload fix
-  $(window).bind('beforeunload', function() { rcmail.unload = true; });
+  $(window).bind('beforeunload', function() { ref.unload = true; });
 
   // set environment variable(s)
   this.set_env = function(p, value)
@@ -236,15 +236,13 @@
             return ref.command('sort', $(this).attr('rel'), this);
           });
 
-          this.gui_objects.messagelist.parentNode.onclick = function(e){ return ref.click_on_list(e || window.event); };
-
           this.enable_command('toggle_status', 'toggle_flag', 'sort', true);
           this.enable_command('set-listmode', this.env.threads && !this.is_multifolder_listing());
 
           // load messages
           this.command('list');
 
-          $(this.gui_objects.qsearchbox).val(this.env.search_text).focusin(function() { rcmail.message_list.blur(); });
+          $(this.gui_objects.qsearchbox).val(this.env.search_text).focusin(function() { ref.message_list.blur(); });
         }
 
         this.set_button_titles();
@@ -289,11 +287,16 @@
           // add more commands (not enabled)
           $.merge(this.env.compose_commands, ['add-recipient', 'firstpage', 'previouspage', 'nextpage', 'lastpage']);
 
-          if (this.env.spellcheck) {
-            this.env.spellcheck.spelling_state_observer = function(s) { ref.spellcheck_state(); };
+          if (window.googie) {
+            this.env.editor_config.spellchecker = googie;
+            this.env.editor_config.spellcheck_observer = function(s) { ref.spellcheck_state(); };
+
             this.env.compose_commands.push('spellcheck')
             this.enable_command('spellcheck', true);
           }
+
+          // initialize HTML editor
+          this.editor_init(this.env.editor_config, this.env.composebody);
 
           // init canned response functions
           if (this.gui_objects.responseslist) {
@@ -309,9 +312,9 @@
               });
 
             // avoid textarea loosing focus when hitting the save-response button/link
-            for (var i=0; this.buttons['save-response'] && i < this.buttons['save-response'].length; i++) {
-              $('#'+this.buttons['save-response'][i].id).mousedown(function(e){ return rcube_event.cancel(e); })
-            }
+            $.each(this.buttons['save-response'] || [], function (i, v) {
+              $('#' + v.id).mousedown(function(e){ return rcube_event.cancel(e); })
+            });
           }
 
           // init message compose form
@@ -341,10 +344,10 @@
           this.contact_list
             .addEventListener('initrow', function(o) { ref.triggerEvent('insertrow', { cid:o.uid, row:o }); })
             .addEventListener('select', function(o) { ref.compose_recipient_select(o); })
-            .addEventListener('dblclick', function(o) { ref.compose_add_recipient('to'); })
+            .addEventListener('dblclick', function(o) { ref.compose_add_recipient(); })
             .addEventListener('keypress', function(o) {
               if (o.key_pressed == o.ENTER_KEY) {
-                if (!ref.compose_add_recipient('to')) {
+                if (!ref.compose_add_recipient()) {
                   // execute link action on <enter> if not a recipient entry
                   if (o.last_selected && String(o.last_selected).charAt(0) == 'G') {
                     $(o.rows[o.last_selected].obj).find('a').first().click();
@@ -353,6 +356,9 @@
               }
             })
             .init();
+
+          // remember last focused address field
+          $('#_to,#_cc,#_bcc').focus(function() { ref.env.focused_field = this; });
         }
 
         if (this.gui_objects.addressbookslist) {
@@ -398,15 +404,21 @@
             .addEventListener('dragend', function(e) { ref.drag_end(e); })
             .init();
 
-          if (this.env.cid)
-            this.contact_list.highlight_row(this.env.cid);
-
-          this.gui_objects.contactslist.parentNode.onmousedown = function(e){ return ref.click_on_list(e); };
-
           $(this.gui_objects.qsearchbox).focusin(function() { ref.contact_list.blur(); });
 
           this.update_group_commands();
           this.command('list');
+        }
+
+        if (this.gui_objects.savedsearchlist) {
+          this.savedsearchlist = new rcube_treelist_widget(this.gui_objects.savedsearchlist, {
+            id_prefix: 'rcmli',
+            id_encode: this.html_identifier_encode,
+            id_decode: this.html_identifier_decode
+          });
+
+          this.savedsearchlist.addEventListener('select', function(node) {
+            ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' }); });
         }
 
         this.set_page_buttons();
@@ -438,6 +450,9 @@
         else if (this.env.action == 'edit-identity' || this.env.action == 'add-identity') {
           this.enable_command('save', 'edit', 'toggle-editor', true);
           this.enable_command('delete', this.env.identities_level < 2);
+
+          // initialize HTML editor
+          this.editor_init(this.env.editor_config, 'rcmfd_signature');
         }
         else if (this.env.action == 'folders') {
           this.enable_command('subscribe', 'unsubscribe', 'create-folder', 'rename-folder', true);
@@ -463,9 +478,6 @@
             })
             .init()
             .focus();
-
-          if (this.env.iid)
-            this.identity_list.highlight_row(this.env.iid);
         }
         else if (this.gui_objects.sectionslist) {
           this.sections_list = new rcube_list_widget(this.gui_objects.sectionslist, {multiselect:false, draggable:false, keyboard:true});
@@ -497,7 +509,7 @@
 
       case 'login':
         var input_user = $('#rcmloginuser');
-        input_user.bind('keyup', function(e){ return rcmail.login_user_keyup(e); });
+        input_user.bind('keyup', function(e){ return ref.login_user_keyup(e); });
 
         if (input_user.val() == '')
           input_user.focus();
@@ -517,8 +529,8 @@
         // display 'loading' message on form submit, lock submit button
         $('form').submit(function () {
           $('input[type=submit]', this).prop('disabled', true);
-          rcmail.clear_messages();
-          rcmail.display_message('', 'loading');
+          ref.clear_messages();
+          ref.display_message('', 'loading');
         });
 
         this.enable_command('login', true);
@@ -528,7 +540,7 @@
     // select first input field in an edit form
     if (this.gui_objects.editform)
       $("input,select,textarea", this.gui_objects.editform)
-        .not(':hidden').not(':disabled').first().select();
+        .not(':hidden').not(':disabled').first().select().focus();
 
     // unset contentframe variable if preview_pane is enabled
     if (this.env.contentframe && !$('#' + this.env.contentframe).is(':visible'))
@@ -546,23 +558,20 @@
     if (this.pending_message)
       this.display_message(this.pending_message[0], this.pending_message[1], this.pending_message[2]);
 
-    // map implicit containers
-    if (this.gui_objects.folderlist) {
-      this.gui_containers.foldertray = $(this.gui_objects.folderlist);
-
-      // init treelist widget
-      if (window.rcube_treelist_widget) {
-        this.treelist = new rcube_treelist_widget(this.gui_objects.folderlist, {
+    // init treelist widget
+    if (this.gui_objects.folderlist && window.rcube_treelist_widget) {
+      this.treelist = new rcube_treelist_widget(this.gui_objects.folderlist, {
+          selectable: true,
           id_prefix: 'rcmli',
           id_encode: this.html_identifier_encode,
           id_decode: this.html_identifier_decode,
           check_droptarget: function(node) { return !node.virtual && ref.check_droptarget(node.id) }
-        });
-        this.treelist
-          .addEventListener('collapse', function(node) { ref.folder_collapsed(node) })
-          .addEventListener('expand', function(node) { ref.folder_collapsed(node) })
-          .addEventListener('select', function(node) { ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' }) });
-      }
+      });
+
+      this.treelist
+        .addEventListener('collapse', function(node) { ref.folder_collapsed(node) })
+        .addEventListener('expand', function(node) { ref.folder_collapsed(node) })
+        .addEventListener('select', function(node) { ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' }) });
     }
 
     // activate html5 file drop feature (if browser supports it and if configured)
@@ -590,12 +599,12 @@
 
     // execute all foreign onload scripts
     // @deprecated
-    for (var i in this.onloads) {
-      if (typeof this.onloads[i] === 'string')
-        eval(this.onloads[i]);
-      else if (typeof this.onloads[i] === 'function')
-        this.onloads[i]();
-      }
+    for (n in this.onloads) {
+      if (typeof this.onloads[n] === 'string')
+        eval(this.onloads[n]);
+      else if (typeof this.onloads[n] === 'function')
+        this.onloads[n]();
+    }
 
     // start keep-alive and refresh intervals
     this.start_refresh();
@@ -617,7 +626,7 @@
   {
     var ret, uid, cid, url, flag, aborted = false;
 
-    if (obj && obj.blur && !(event || rcube_event.is_keyboard(event)))
+    if (obj && obj.blur && !(event && rcube_event.is_keyboard(event)))
       obj.blur();
 
     // do nothing if interface is locked by other command (with exception for searching reset)
@@ -645,17 +654,18 @@
 
       // remove copy from local storage if compose screen is left intentionally
       this.remove_compose_data(this.env.compose_id);
+      this.compose_skip_unsavedcheck = true;
     }
 
     this.last_command = command;
 
     // process external commands
     if (typeof this.command_handlers[command] === 'function') {
-      ret = this.command_handlers[command](props, obj);
+      ret = this.command_handlers[command](props, obj, event);
       return ret !== undefined ? ret : (obj ? false : true);
     }
     else if (typeof this.command_handlers[command] === 'string') {
-      ret = window[this.command_handlers[command]](props, obj);
+      ret = window[this.command_handlers[command]](props, obj, event);
       return ret !== undefined ? ret : (obj ? false : true);
     }
 
@@ -706,13 +716,11 @@
 
           if (win) {
             this.save_compose_form_local();
+            this.compose_skip_unsavedcheck = true;
             $("input[name='_action']", form).val('compose');
             form.action = this.url('mail/compose', { _id: this.env.compose_id, _extwin: 1 });
             form.target = win.name;
             form.submit();
-          }
-          else {
-            // this.display_message(this.get_label('windowopenerror'), 'error');
           }
         }
         else {
@@ -760,19 +768,12 @@
         break;
 
       case 'list':
-        // re-send search query for the selected folder
-        if (props && props != '' && this.env.search_request && this.gui_objects.qsearchbox.value) {
-          var oldmbox = this.env.search_scope == 'all' ? '*' : this.env.mailbox;
-          this.env.search_mods[props] = this.env.search_mods[oldmbox];  // copy search mods from active search
-          this.env.mailbox = props;
-          this.env.search_scope = 'sub';
-          this.qsearch(this.gui_objects.qsearchbox.value);
-          this.select_folder(this.env.mailbox, '', true);
-          break;
+        if (props && props != '') {
+          this.reset_qsearch();
         }
-
-        if (this.env.action == 'compose' && this.env.extwin)
+        if (this.env.action == 'compose' && this.env.extwin) {
           window.close();
+        }
         else if (this.task == 'mail') {
           this.list_mailbox(props);
           this.set_button_titles();
@@ -1051,7 +1052,7 @@
         if (this.task == 'mail') {
           url._mbox = this.env.mailbox;
           if (props)
-             url._to = props;
+            url._to = props;
           // also send search request so we can go back to search result after message is sent
           if (this.env.search_request)
             url._search = this.env.search_request;
@@ -1079,25 +1080,23 @@
             break;
           }
         }
-        else if (props)
+        else if (props && typeof props == 'string') {
           url._to = props;
+        }
+        else if (props && typeof props == 'object') {
+          $.extend(url, props);
+        }
 
         this.open_compose_step(url);
         break;
 
       case 'spellcheck':
         if (this.spellcheck_state()) {
-          this.stop_spellchecking();
+          this.editor.spellcheck_stop();
         }
         else {
-          if (window.tinyMCE && tinyMCE.get(this.env.composebody)) {
-            tinyMCE.execCommand('mceSpellCheck', true);
-          }
-          else if (this.env.spellcheck && this.env.spellcheck.spellCheck) {
-            this.env.spellcheck.spellCheck();
-          }
+          this.editor.spellcheck_start();
         }
-        this.spellcheck_state();
         break;
 
       case 'savedraft':
@@ -1179,8 +1178,8 @@
           this.gui_objects.messagepartframe.contentWindow.print();
         }
         else if (uid = this.get_single_uid()) {
-          ref.printwin = this.open_window(this.env.comm_path+'&_action=print&_uid='+uid+'&_mbox='+urlencode(this.get_message_mailbox(uid))+(this.env.safemode ? '&_safe=1' : ''), true, true);
-          if (this.printwin) {
+          url = '&_action=print&_uid='+uid+'&_mbox='+urlencode(this.get_message_mailbox(uid))+(this.env.safemode ? '&_safe=1' : '');
+          if (this.open_window(this.env.comm_path + url, true, true)) {
             if (this.env.action != 'show')
               this.mark_message('read', uid);
           }
@@ -1319,7 +1318,7 @@
       default:
         var func = command.replace(/-/g, '_');
         if (this[func] && typeof this[func] === 'function') {
-          ret = this[func](props, obj);
+          ret = this[func](props, obj, event);
         }
         break;
     }
@@ -1356,7 +1355,7 @@
   this.command_enabled = function(cmd)
   {
     return this.commands[cmd];
-  }
+  };
 
   // lock/unlock interface
   this.set_busy = function(a, message, id)
@@ -1398,13 +1397,14 @@
   // switch to another application task
   this.switch_task = function(task)
   {
-    if (this.task===task && task!='mail')
+    if (this.task === task && task != 'mail')
       return;
 
     var url = this.get_task_url(task);
+
     if (task == 'mail')
       url += '&_mbox=INBOX';
-    else if (task == 'logout')
+    else if (task == 'logout' && !this.env.server_error)
       this.clear_compose_data();
 
     this.redirect(url);
@@ -1423,7 +1423,7 @@
     if (this.is_framed())
       parent.rcmail.reload(delay);
     else if (delay)
-      setTimeout(function(){ rcmail.reload(); }, delay);
+      setTimeout(function() { ref.reload(); }, delay);
     else if (window.location)
       location.href = this.env.comm_path + (this.env.action ? '&_action='+this.env.action : '');
   };
@@ -1451,15 +1451,15 @@
 
   this.is_framed = function()
   {
-    return (this.env.framed && parent.rcmail && parent.rcmail != this && parent.rcmail.command);
+    return this.env.framed && parent.rcmail && parent.rcmail != this && typeof parent.rcmail.command == 'function';
   };
 
   this.save_pref = function(prop)
   {
-    var request = {'_name': prop.name, '_value': prop.value};
+    var request = {_name: prop.name, _value: prop.value};
 
     if (prop.session)
-      request['_session'] = prop.session;
+      request._session = prop.session;
     if (prop.env)
       this.env[prop.env] = prop.value;
 
@@ -1599,7 +1599,7 @@
 
       // select the folder if one of its childs is currently selected
       // don't select if it's virtual (#1488346)
-      if (this.env.mailbox && this.env.mailbox.startsWith(name + this.env.delimiter) && !node.virtual)
+      if (!node.virtual && this.env.mailbox && this.env.mailbox.startsWith(name + this.env.delimiter))
         this.command('list', name);
     }
     else {
@@ -1641,7 +1641,7 @@
     }
 
     // reset popup menus; delayed to have updated menu_stack data
-    window.setTimeout(function(e){
+    setTimeout(function(e){
       var obj, skip, config, id, i, parents = $(target).parents();
       for (i = ref.menu_stack.length - 1; i >= 0; i--) {
         id = ref.menu_stack[i];
@@ -1681,6 +1681,9 @@
     var target = e.target || {},
       keyCode = rcube_event.get_keycode(e);
 
+    // save global reference for keyboard detection on click events in IE
+    rcube_event._last_keyboard_event = e;
+
     if (e.keyCode != 27 && (!this.menu_keyboard_active || target.nodeName == 'TEXTAREA' || target.nodeName == 'SELECT')) {
       return true;
     }
@@ -1690,8 +1693,8 @@
       case 40:
       case 63232: // "up", in safari keypress
       case 63233: // "down", in safari keypress
-        focus_menu_item(mod = keyCode == 38 || keyCode == 63232 ? -1 : 1);
-        break;
+        focus_menu_item(keyCode == 38 || keyCode == 63232 ? -1 : 1);
+        return rcube_event.cancel(e);
 
       case 9:   // tab
         if (this.focused_menu) {
@@ -1710,19 +1713,6 @@
 
     return true;
   }
-
-  this.click_on_list = function(e)
-  {
-    if (this.gui_objects.qsearchbox)
-      this.gui_objects.qsearchbox.blur();
-
-    if (this.message_list)
-      this.message_list.focus(e);
-    else if (this.contact_list)
-      this.contact_list.focus(e);
-
-    return true;
-  };
 
   this.msglist_select = function(list)
   {
@@ -1855,9 +1845,6 @@
             && !this.env.mailboxes[id].virtual
             && (this.env.mailboxes[id].id != this.env.mailbox || this.is_multifolder_listing())) ? 1 : 0;
 
-      case 'settings':
-        return id != this.env.mailbox ? 1 : 0;
-
       case 'addressbook':
         var target;
         if (id != this.env.source && (target = this.env.contactfolders[id])) {
@@ -1901,6 +1888,13 @@
           +(toolbar ? ',toolbar=yes,menubar=yes,status=yes' : ',toolbar=no,menubar=no,status=no'));
     }
 
+    // detect popup blocker (#1489618)
+    // don't care this might not work with all browsers
+    if (!extwin || extwin.closed) {
+      this.display_message(this.get_label('windowopenerror'), 'warning');
+      return;
+    }
+
     // write loading... message to empty windows
     if (!url && extwin.document) {
       extwin.document.write('<html><body>' + this.get_label('loading') + '</body></html>');
@@ -1910,7 +1904,7 @@
     this.triggerEvent('openwindow', { url:url, handle:extwin });
 
     // focus window, delayed to bring to front
-    window.setTimeout(function() { extwin && extwin.focus(); }, 10);
+    setTimeout(function() { extwin && extwin.focus(); }, 10);
 
     return extwin;
   };
@@ -2002,12 +1996,13 @@
       list = this.message_list,
       rows = list.rows,
       message = this.env.messages[uid],
+      msg_id = this.html_identifier(uid,true),
       row_class = 'message'
         + (!flags.seen ? ' unread' : '')
         + (flags.deleted ? ' deleted' : '')
         + (flags.flagged ? ' flagged' : '')
         + (message.selected ? ' selected' : ''),
-      row = { cols:[], style:{}, id:'rcmrow'+this.html_identifier(uid,true), uid:uid };
+      row = { cols:[], style:{}, id:'rcmrow'+msg_id, uid:uid };
 
     // message status icons
     css_class = 'msgicon';
@@ -2042,7 +2037,7 @@
     if (this.env.threading) {
       if (message.depth) {
         // This assumes that div width is hardcoded to 15px,
-        tree += '<span id="rcmtab' + row.id + '" class="branch" style="width:' + (message.depth * 15) + 'px;">&nbsp;&nbsp;</span>';
+        tree += '<span id="rcmtab' + msg_id + '" class="branch" style="width:' + (message.depth * 15) + 'px;">&nbsp;&nbsp;</span>';
 
         if ((rows[message.parent_uid] && rows[message.parent_uid].expanded === false)
           || ((this.env.autoexpand_threads == 0 || this.env.autoexpand_threads == 2) &&
@@ -2252,17 +2247,37 @@
         this.location_href(this.env.comm_path+url, target, true);
 
       // mark as read and change mbox unread counter
-      if (preview && this.message_list && this.message_list.rows[id] && this.message_list.rows[id].unread && this.env.preview_pane_mark_read >= 0) {
+      if (preview && this.message_list && this.message_list.rows[id] && this.message_list.rows[id].unread && this.env.preview_pane_mark_read > 0) {
         this.preview_read_timer = setTimeout(function() {
-          ref.set_message(id, 'unread', false);
-          if (ref.env.unread_counts[ref.env.mailbox]) {
-            ref.env.unread_counts[ref.env.mailbox] -= 1;
-            ref.set_unread_count(ref.env.mailbox, ref.env.unread_counts[ref.env.mailbox], ref.env.mailbox == 'INBOX');
-          }
-          if (ref.env.preview_pane_mark_read > 0)
-            ref.http_post('mark', {_uid: id, _flag: 'read', _quiet: 1});
+          ref.set_unread_message(id, ref.env.mailbox);
+          ref.http_post('mark', {_uid: id, _flag: 'read', _quiet: 1});
         }, this.env.preview_pane_mark_read * 1000);
       }
+    }
+  };
+
+  // update message status and unread counter after marking a message as read
+  this.set_unread_message = function(id, folder)
+  {
+    var self = this;
+
+    // find window with messages list
+    if (!self.message_list)
+      self = self.opener();
+
+    if (!self && window.parent)
+      self = parent.rcmail;
+
+    if (!self || !self.message_list)
+      return;
+
+    // this may fail in multifolder mode
+    if (self.set_message(id, 'unread', false) === false)
+      self.set_message(id + '-' + folder, 'unread', false);
+
+    if (self.env.unread_counts[folder] > 0) {
+      self.env.unread_counts[folder] -= 1;
+      self.set_unread_count(folder, self.env.unread_counts[folder], folder == 'INBOX' && !self.is_multifolder_listing());
     }
   };
 
@@ -2412,6 +2427,9 @@
       url._framed = 1;
     }
 
+    if (this.env.uid)
+      url._uid = this.env.uid;
+
     // load message list to target frame/window
     if (mbox) {
       this.set_busy(true, 'loading');
@@ -2458,7 +2476,7 @@
         selection.push(selected[i]);
 
     this.message_list.selection = selection;
-  }
+  };
 
   // expand all threads with unread children
   this.expand_unread = function()
@@ -2471,8 +2489,10 @@
         this.message_list.expand_all(r);
         this.set_unread_children(r.uid);
       }
+
       new_row = new_row.nextSibling;
     }
+
     return false;
   };
 
@@ -2668,8 +2688,8 @@
             $('#'+r.id+' .leaf:first')
               .attr('id', 'rcmexpando' + r.id)
               .attr('class', (r.obj.style.display != 'none' ? 'expanded' : 'collapsed'))
-              .bind('mousedown', {uid:r.uid, p:this},
-                function(e) { return e.data.p.expand_message_row(e, e.data.uid); });
+              .bind('mousedown', {uid: r.uid},
+                function(e) { return ref.expand_message_row(e, e.data.uid); });
 
             r.unread_children = 0;
             roots.push(r);
@@ -2689,8 +2709,8 @@
     }
 
     // update unread_children for roots
-    for (var i=0; i<roots.length; i++)
-      this.set_unread_children(roots[i].uid);
+    for (r=0; r<roots.length; r++)
+      this.set_unread_children(roots[r].uid);
 
     return count;
   };
@@ -2788,16 +2808,10 @@
     if (flag == 'unread') {
       if (row.unread != status)
         this.update_thread_root(uid, status ? 'unread' : 'read');
-      row.unread = status;
     }
-    else if(flag == 'deleted')
-      row.deleted = status;
-    else if (flag == 'replied')
-      row.replied = status;
-    else if (flag == 'forwarded')
-      row.forwarded = status;
-    else if (flag == 'flagged')
-      row.flagged = status;
+
+    if ($.inArray(flag, ['unread', 'deleted', 'replied', 'forwarded', 'flagged']) > -1)
+      row[flag] = status;
   };
 
   // set message row status, class and icon
@@ -2811,22 +2825,8 @@
     if (flag)
       this.set_message_status(uid, flag, status);
 
-    var rowobj = $(row.obj);
-
-    if (row.unread && !rowobj.hasClass('unread'))
-      rowobj.addClass('unread');
-    else if (!row.unread && rowobj.hasClass('unread'))
-      rowobj.removeClass('unread');
-
-    if (row.deleted && !rowobj.hasClass('deleted'))
-      rowobj.addClass('deleted');
-    else if (!row.deleted && rowobj.hasClass('deleted'))
-      rowobj.removeClass('deleted');
-
-    if (row.flagged && !rowobj.hasClass('flagged'))
-      rowobj.addClass('flagged');
-    else if (!row.flagged && rowobj.hasClass('flagged'))
-      rowobj.removeClass('flagged');
+    if ($.inArray(flag, ['unread', 'deleted', 'flagged']) > -1)
+      $(row.obj)[row[flag] ? 'addClass' : 'removeClass'](flag);
 
     this.set_unread_children(uid);
     this.set_message_icon(uid);
@@ -3171,12 +3171,12 @@
         this.message_list.clear_selection();
       if (count < 0)
         post_data._count = (count*-1);
-      else if (count > 0) 
+      else if (count > 0)
         // remove threads from the end of the list
         this.delete_excessive_thread_rows();
     }
 
-    // ??
+    // set of messages to mark as seen
     if (r_uids.length)
       post_data._ruid = this.uids_to_list(r_uids);
 
@@ -3190,11 +3190,11 @@
   // argument should be a coma-separated list of uids
   this.flag_deleted_as_read = function(uids)
   {
-    var icn_src, uid, i, len,
+    var uid, i, len,
       rows = this.message_list ? this.message_list.rows : {};
 
     if (typeof uids == 'string')
-      uids = String(uids).split(',');
+      uids = uids.split(',');
 
     for (i=0, len=uids.length; i<len; i++) {
       uid = uids[i];
@@ -3318,7 +3318,7 @@
     if (!this.gui_objects.messageform)
       return false;
 
-    var input_from = $("[name='_from']"),
+    var i, input_from = $("[name='_from']"),
       input_to = $("[name='_to']"),
       input_subject = $("input[name='_subject']"),
       input_message = $("[name='_message']").get(0),
@@ -3347,7 +3347,7 @@
 
     // init live search events
     this.init_address_input_events(input_to, ac_props);
-    for (var i in ac_fields) {
+    for (i in ac_fields) {
       this.init_address_input_events($("[name='_"+ac_fields[i]+"']"), ac_props);
     }
 
@@ -3361,62 +3361,7 @@
     }
 
     // check for locally stored compose data
-    if (window.localStorage) {
-      var index = this.local_storage_get_item('compose.index', []);
-
-      for (var key, i = 0; i < index.length; i++) {
-        key = index[i], formdata = this.local_storage_get_item('compose.' + key, null, true);
-        if (!formdata) {
-          continue;
-        }
-        // restore saved copy of current compose_id
-        if (formdata.changed && key == this.env.compose_id) {
-          this.restore_compose_form(key, html_mode);
-          break;
-        }
-        // skip records from 'other' drafts
-        if (this.env.draft_id && formdata.draft_id && formdata.draft_id != this.env.draft_id) {
-          continue;
-        }
-        // skip records on reply
-        if (this.env.reply_msgid && formdata.reply_msgid != this.env.reply_msgid) {
-          continue;
-        }
-        // show dialog asking to restore the message
-        if (formdata.changed && formdata.session != this.env.session_id) {
-          this.show_popup_dialog(
-            this.get_label('restoresavedcomposedata')
-              .replace('$date', new Date(formdata.changed).toLocaleString())
-              .replace('$subject', formdata._subject)
-              .replace(/\n/g, '<br/>'),
-            this.get_label('restoremessage'),
-            [{
-              text: this.get_label('restore'),
-              click: function(){
-                ref.restore_compose_form(key, html_mode);
-                ref.remove_compose_data(key);  // remove old copy
-                ref.save_compose_form_local();  // save under current compose_id
-                $(this).dialog('close');
-              }
-            },
-            {
-              text: this.get_label('delete'),
-              click: function(){
-                ref.remove_compose_data(key);
-                $(this).dialog('close');
-              }
-            },
-            {
-              text: this.get_label('ignore'),
-              click: function(){
-                $(this).dialog('close');
-              }
-            }]
-          );
-          break;
-        }
-      }
-    }
+    this.compose_restore_dialog(0, html_mode)
 
     if (input_to.val() == '')
       input_to.focus();
@@ -3434,14 +3379,78 @@
     this.auto_save_start();
   };
 
+  this.compose_restore_dialog = function(j, html_mode)
+  {
+    var i, key, formdata, index = this.local_storage_get_item('compose.index', []);
+
+    var show_next = function(i) {
+      if (++i < index.length)
+        ref.compose_restore_dialog(i, html_mode)
+    }
+
+    for (i = j || 0; i < index.length; i++) {
+      key = index[i];
+      formdata = this.local_storage_get_item('compose.' + key, null, true);
+      if (!formdata) {
+        continue;
+      }
+      // restore saved copy of current compose_id
+      if (formdata.changed && key == this.env.compose_id) {
+        this.restore_compose_form(key, html_mode);
+        break;
+      }
+      // skip records from 'other' drafts
+      if (this.env.draft_id && formdata.draft_id && formdata.draft_id != this.env.draft_id) {
+        continue;
+      }
+      // skip records on reply
+      if (this.env.reply_msgid && formdata.reply_msgid != this.env.reply_msgid) {
+        continue;
+      }
+      // show dialog asking to restore the message
+      if (formdata.changed && formdata.session != this.env.session_id) {
+        this.show_popup_dialog(
+          this.get_label('restoresavedcomposedata')
+            .replace('$date', new Date(formdata.changed).toLocaleString())
+            .replace('$subject', formdata._subject)
+            .replace(/\n/g, '<br/>'),
+          this.get_label('restoremessage'),
+          [{
+            text: this.get_label('restore'),
+            click: function(){
+              ref.restore_compose_form(key, html_mode);
+              ref.remove_compose_data(key);  // remove old copy
+              ref.save_compose_form_local();  // save under current compose_id
+              $(this).dialog('close');
+            }
+          },
+          {
+            text: this.get_label('delete'),
+            click: function(){
+              ref.remove_compose_data(key);
+              $(this).dialog('close');
+              show_next(i);
+            }
+          },
+          {
+            text: this.get_label('ignore'),
+            click: function(){
+              $(this).dialog('close');
+              show_next(i);
+            }
+          }]
+        );
+        break;
+      }
+    }
+  }
+
   this.init_address_input_events = function(obj, props)
   {
     this.env.recipients_delimiter = this.env.recipients_separator + ' ';
 
     obj.keydown(function(e) { return ref.ksearch_keydown(e, this, props); })
-      .attr('autocomplete', 'off')
-      .attr('aria-autocomplete', 'list')
-      .attr('aria-expanded', 'false');
+      .attr({ 'autocomplete': 'off', 'aria-autocomplete': 'list', 'aria-expanded': 'false', 'role': 'combobox' });
   };
 
   this.submit_messageform = function(draft)
@@ -3464,6 +3473,7 @@
     form._draft.value = draft ? '1' : '';
     form.action = this.add_url(form.action, '_unlock', msgid);
     form.action = this.add_url(form.action, '_lang', lang);
+    form.action = this.add_url(form.action, '_framed', 1);
 
     // register timer to notify about connection timeout
     this.submit_timer = setTimeout(function(){
@@ -3487,6 +3497,12 @@
 
   this.compose_add_recipient = function(field)
   {
+    // find last focused field name
+    if (!field) {
+      field = $(this.env.focused_field).filter(':visible');
+      field = field.length ? field.attr('id').replace('_', '') : 'to';
+    }
+
     var recipients = [], input = $('#_'+field), delim = this.env.recipients_delimiter;
 
     if (this.contact_list && this.contact_list.selection.length) {
@@ -3520,12 +3536,11 @@
   this.check_compose_input = function(cmd)
   {
     // check input fields
-    var ed, input_to = $("[name='_to']"),
+    var input_to = $("[name='_to']"),
       input_cc = $("[name='_cc']"),
       input_bcc = $("[name='_bcc']"),
       input_from = $("[name='_from']"),
-      input_subject = $("[name='_subject']"),
-      input_message = $("[name='_message']");
+      input_subject = $("[name='_subject']");
 
     // check sender (if have no identities)
     if (input_from.prop('type') == 'text' && !rcube_check_email(input_from.val(), true)) {
@@ -3552,108 +3567,77 @@
 
     // display localized warning for missing subject
     if (input_subject.val() == '') {
-      var myprompt = $('<div class="prompt">').html('<div class="message">' + this.get_label('nosubjectwarning') + '</div>').appendTo(document.body);
-      var prompt_value = $('<input>').attr('type', 'text').attr('size', 30).appendTo(myprompt).val(this.get_label('nosubject'));
+      var buttons = {},
+        myprompt = $('<div class="prompt">').html('<div class="message">' + this.get_label('nosubjectwarning') + '</div>')
+          .appendTo(document.body),
+        prompt_value = $('<input>').attr({type: 'text', size: 30}).val(this.get_label('nosubject'))
+          .appendTo(myprompt),
+        save_func = function() {
+          input_subject.val(prompt_value.val());
+          myprompt.dialog('close');
+          ref.command(cmd, { nocheck:true });  // repeat command which triggered this
+        };
 
-      var buttons = {};
-      buttons[this.get_label('cancel')] = function(){
+      buttons[this.get_label('sendmessage')] = function() {
+        save_func($(this));
+      };
+      buttons[this.get_label('cancel')] = function() {
         input_subject.focus();
         $(this).dialog('close');
-      };
-      buttons[this.get_label('sendmessage')] = function(){
-        input_subject.val(prompt_value.val());
-        $(this).dialog('close');
-        ref.command(cmd, { nocheck:true });  // repeat command which triggered this
       };
 
       myprompt.dialog({
         modal: true,
         resizable: false,
         buttons: buttons,
-        close: function(event, ui) { $(this).remove() }
+        close: function(event, ui) { $(this).remove(); }
       });
-      prompt_value.select();
+
+      prompt_value.select().keydown(function(e) {
+        if (e.which == 13) save_func();
+      });
+
       return false;
     }
-
-    // Apply spellcheck changes if spell checker is active
-    this.stop_spellchecking();
-
-    if (window.tinyMCE)
-      ed = tinyMCE.get(this.env.composebody);
 
     // check for empty body
-    if (!ed && input_message.val() == '' && !confirm(this.get_label('nobodywarning'))) {
-      input_message.focus();
+    if (!this.editor.get_content() && !confirm(this.get_label('nobodywarning'))) {
+      this.editor.focus();
       return false;
     }
-    else if (ed) {
-      if (!ed.getContent() && !confirm(this.get_label('nobodywarning'))) {
-        ed.focus();
-        return false;
-      }
-      // move body from html editor to textarea (just to be sure, #1485860)
-      tinyMCE.triggerSave();
-    }
+
+    // move body from html editor to textarea (just to be sure, #1485860)
+    this.editor.save();
 
     return true;
   };
 
-  this.toggle_editor = function(props)
+  this.toggle_editor = function(props, obj, e)
   {
-    this.stop_spellchecking();
+    // @todo: this should work also with many editors on page
+    var result = this.editor.toggle(props.html);
 
-    if (props.mode == 'html') {
-      this.plain2html($('#'+props.id).val(), props.id);
-      tinyMCE.execCommand('mceAddControl', false, props.id);
-
-      if (this.env.default_font)
-        setTimeout(function() {
-          $(tinyMCE.get(props.id).getBody()).css('font-family', rcmail.env.default_font);
-        }, 500);
-    }
-    else {
-      var thisMCE = tinyMCE.get(props.id), existingHtml;
-
-      if (existingHtml = thisMCE.getContent()) {
-        if (!confirm(this.get_label('editorwarning'))) {
-          return false;
-        }
-        this.html2plain(existingHtml, props.id);
-      }
-      tinyMCE.execCommand('mceRemoveControl', false, props.id);
+    if (!result && e) {
+      // fix selector value if operation failed
+      $(e.target).filter('select').val(props.html ? 'plain' : 'html');
     }
 
-    return true;
+    if (result) {
+      // update internal format flag
+      $("input[name='_is_html']").val(props.html ? 1 : 0);
+    }
+
+    return result;
   };
 
   this.insert_response = function(key)
   {
     var insert = this.env.textresponses[key] ? this.env.textresponses[key].text : null;
+
     if (!insert)
       return false;
 
-    // insert into tinyMCE editor
-    if ($("input[name='_is_html']").val() == '1') {
-      var editor = tinyMCE.get(this.env.composebody);
-      editor.getWin().focus(); // correct focus in IE & Chrome
-      editor.selection.setContent(this.quote_html(insert).replace(/\r?\n/g, '<br/>'), { format:'text' });
-    }
-    // replace selection in compose textarea
-    else {
-      var textarea = rcube_find_object(this.env.composebody),
-        selection = $(textarea).is(':focus') ? this.get_input_selection(textarea) : { start:0, end:0 },
-        inp_value = textarea.value;
-        pre = inp_value.substring(0, selection.start),
-        end = inp_value.substring(selection.end, inp_value.length);
-
-      // insert response text
-      textarea.value = pre + insert + end;
-
-      // set caret after inserted text
-      this.set_caret_pos(textarea, selection.start + insert.length);
-      textarea.focus();
-    }
+    this.editor.replace(insert);
   };
 
   /**
@@ -3661,42 +3645,8 @@
    */
   this.save_response = function()
   {
-    var sigstart, text = '', strip = false;
-
-    // get selected text from tinyMCE editor
-    if ($("input[name='_is_html']").val() == '1') {
-      var editor = tinyMCE.get(this.env.composebody);
-      editor.getWin().focus(); // correct focus in IE & Chrome
-      text = editor.selection.getContent({ format:'text' });
-
-      if (!text) {
-        text = editor.getContent({ format:'text' });
-        strip = true;
-      }
-    }
-    // get selected text from compose textarea
-    else {
-      var textarea = rcube_find_object(this.env.composebody), sigstart;
-      if (textarea && $(textarea).is(':focus')) {
-        text = this.get_input_selection(textarea).text;
-      }
-
-      if (!text && textarea) {
-        text = textarea.value;
-        strip = true;
-      }
-    }
-
-    // strip off signature
-    if (strip) {
-      sigstart = text.indexOf('-- \n');
-      if (sigstart > 0) {
-        text = text.substring(0, sigstart);
-      }
-    }
-
     // show dialog to enter a name and to modify the text to be saved
-    var buttons = {},
+    var buttons = {}, text = this.editor.get_content(true, true),
       html = '<form class="propform">' +
       '<div class="prop block"><label>' + this.get_label('responsename') + '</label>' +
       '<input type="text" name="name" id="ffresponsename" size="40" /></div>' +
@@ -3724,7 +3674,7 @@
       $(this).dialog('close');
     };
 
-    this.show_popup_dialog(html, this.gettext('savenewresponse'), buttons);
+    this.show_popup_dialog(html, this.gettext('newresponse'), buttons);
 
     $('#ffresponsetext').val(text);
     $('#ffresponsename').select();
@@ -3772,39 +3722,17 @@
     // submit delete request
     if (key && confirm(this.get_label('deleteresponseconfirm'))) {
       this.http_post('settings/delete-response', { _key: key }, false);
-      return true;
     }
-
-    return false;
   };
 
-  this.stop_spellchecking = function()
-  {
-    var ed;
-
-    if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody))) {
-      if (ed.plugins && ed.plugins.spellchecker && ed.plugins.spellchecker.active)
-        ed.execCommand('mceSpellCheck');
-    }
-    else if (ed = this.env.spellcheck) {
-      if (ed.state && ed.state != 'ready' && ed.state != 'no_error_found')
-        $(ed.spell_span).trigger('click');
-    }
-
-    this.spellcheck_state();
-  };
-
+  // updates spellchecker buttons on state change
   this.spellcheck_state = function()
   {
-    var ed, active;
+    var active = this.editor.spellcheck_state();
 
-    if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)) && ed.plugins && ed.plugins.spellchecker)
-      active = ed.plugins.spellchecker.active;
-    else if ((ed = this.env.spellcheck) && ed.state)
-      active = ed.state != 'ready' && ed.state != 'no_error_found';
-
-    if (rcmail.buttons.spellcheck)
-      $('#'+rcmail.buttons.spellcheck[0].id)[active ? 'addClass' : 'removeClass']('selected');
+    $.each(this.buttons.spellcheck || [], function(i, v) {
+      $('#' + v.id)[active ? 'addClass' : 'removeClass']('selected');
+    });
 
     return active;
   };
@@ -3812,43 +3740,19 @@
   // get selected language
   this.spellcheck_lang = function()
   {
-    var ed;
-
-    if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)) && ed.plugins && ed.plugins.spellchecker)
-      return ed.plugins.spellchecker.selectedLang;
-    else if (this.env.spellcheck)
-      return GOOGIE_CUR_LANG;
+    return this.editor.get_language();
   };
 
   this.spellcheck_lang_set = function(lang)
   {
-    var ed;
-
-    if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)) && ed.plugins)
-      ed.plugins.spellchecker.selectedLang = lang;
-    else if (this.env.spellcheck)
-      this.env.spellcheck.setCurrentLanguage(lang);
+    this.editor.set_language(lang);
   };
 
   // resume spellchecking, highlight provided mispellings without new ajax request
-  this.spellcheck_resume = function(ishtml, data)
+  this.spellcheck_resume = function(data)
   {
-    if (ishtml) {
-      var ed = tinyMCE.get(this.env.composebody);
-        sp = ed.plugins.spellchecker;
-
-      sp.active = 1;
-      sp._markWords(data);
-      ed.nodeChanged();
-    }
-    else {
-      var sp = this.env.spellcheck;
-      sp.prepare(false, true);
-      sp.processData(data);
-    }
-
-    this.spellcheck_state();
-  }
+    this.editor.spellcheck_resume(data);
+  };
 
   this.set_draft_id = function(id)
   {
@@ -3875,16 +3779,18 @@
 
     // always remove local copy upon saving as draft
     this.remove_compose_data(this.env.compose_id);
+    this.compose_skip_unsavedcheck = false;
   };
 
   this.auto_save_start = function()
   {
-    if (this.env.draft_autosave)
+    if (this.env.draft_autosave) {
       this.draft_autosave_submit = false;
       this.save_timer = setTimeout(function(){
           ref.draft_autosave_submit = true;  // set auto-saved flag (#1489789)
           ref.command("savedraft");
       }, this.env.draft_autosave * 1000);
+    }
 
     // save compose form content to local storage every 5 seconds
     if (!this.local_save_timer && window.localStorage) {
@@ -3898,6 +3804,21 @@
           ref.compose_type_activity_last = ref.compose_type_activity;
         }
       }, 5000);
+
+      $(window).unload(function() {
+        // remove copy from local storage if compose screen is left after warning
+        if (!ref.env.server_error)
+          ref.remove_compose_data(ref.env.compose_id);
+      });
+    }
+
+    // check for unsaved changes before leaving the compose page
+    if (!window.onbeforeunload) {
+      window.onbeforeunload = function() {
+        if (!ref.compose_skip_unsavedcheck && ref.cmp_hash != ref.compose_field_hash()) {
+          return ref.get_label('notsentwarning');
+        }
+      };
     }
 
     // Unlock interface now that saving is complete
@@ -3907,20 +3828,17 @@
   this.compose_field_hash = function(save)
   {
     // check input fields
-    var ed, i, val, str = '', hash_fields = ['to', 'cc', 'bcc', 'subject'];
+    var i, id, val, str = '', hash_fields = ['to', 'cc', 'bcc', 'subject'];
 
     for (i=0; i<hash_fields.length; i++)
       if (val = $('[name="_' + hash_fields[i] + '"]').val())
         str += val + ':';
 
-    if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody)))
-      str += ed.getContent();
-    else
-      str += $("[name='_message']").val();
+    str += this.editor.get_content();
 
     if (this.env.attachments)
-      for (var upload_id in this.env.attachments)
-        str += upload_id;
+      for (id in this.env.attachments)
+        str += id;
 
     if (save)
       this.cmp_hash = str;
@@ -3935,9 +3853,7 @@
       ed, empty = true;
 
     // get fresh content from editor
-    if (window.tinyMCE && (ed = tinyMCE.get(this.env.composebody))) {
-      tinyMCE.triggerSave();
-    }
+    this.editor.save();
 
     if (this.env.draft_id) {
       formdata.draft_id = this.env.draft_id;
@@ -3969,15 +3885,16 @@
       }
     });
 
-    if (window.localStorage && !empty) {
+    if (!empty) {
       var index = this.local_storage_get_item('compose.index', []),
         key = this.env.compose_id;
 
-        if ($.inArray(key, index) < 0) {
-          index.push(key);
-        }
-        this.local_storage_set_item('compose.' + key, formdata, true);
-        this.local_storage_set_item('compose.index', index);
+      if ($.inArray(key, index) < 0) {
+        index.push(key);
+      }
+
+      this.local_storage_set_item('compose.' + key, formdata, true);
+      this.local_storage_set_item('compose.index', index);
     }
   };
 
@@ -4000,15 +3917,8 @@
       });
 
       // initialize HTML editor
-      if (formdata._is_html == '1') {
-        if (!html_mode) {
-          tinyMCE.execCommand('mceAddControl', false, this.env.composebody);
-          this.triggerEvent('aftertoggle-editor', { mode:'html' });
-        }
-      }
-      else if (html_mode) {
-        tinyMCE.execCommand('mceRemoveControl', false, this.env.composebody);
-        this.triggerEvent('aftertoggle-editor', { mode:'plain' });
+      if ((formdata._is_html == '1' && !html_mode) || (formdata._is_html != '1' && html_mode)) {
+        this.command('toggle-editor', {id: this.env.composebody, html: !html_mode});
       }
     }
   };
@@ -4016,28 +3926,25 @@
   // remove stored compose data from localStorage
   this.remove_compose_data = function(key)
   {
-    if (window.localStorage) {
-      var index = this.local_storage_get_item('compose.index', []);
+    var index = this.local_storage_get_item('compose.index', []);
 
-      if ($.inArray(key, index) >= 0) {
-        this.local_storage_remove_item('compose.' + key);
-        this.local_storage_set_item('compose.index', $.grep(index, function(val,i) { return val != key; }));
-      }
+    if ($.inArray(key, index) >= 0) {
+      this.local_storage_remove_item('compose.' + key);
+      this.local_storage_set_item('compose.index', $.grep(index, function(val,i) { return val != key; }));
     }
   };
 
   // clear all stored compose data of this user
   this.clear_compose_data = function()
   {
-    if (window.localStorage) {
-      var i, index = this.local_storage_get_item('compose.index', []);
+    var i, index = this.local_storage_get_item('compose.index', []);
 
-      for (i=0; i < index.length; i++) {
-        this.local_storage_remove_item('compose.' + index[i]);
-      }
-      this.local_storage_remove_item('compose.index');
+    for (i=0; i < index.length; i++) {
+      this.local_storage_remove_item('compose.' + index[i]);
     }
-  }
+
+    this.local_storage_remove_item('compose.index');
+  };
 
 
   this.change_identity = function(obj, show_sig)
@@ -4057,21 +3964,16 @@
         return;
     }
 
-    var i, rx, cursor_pos, p = -1,
-      id = obj.options[obj.selectedIndex].value,
-      input_message = $("[name='_message']"),
-      message = input_message.val(),
-      is_html = ($("input[name='_is_html']").val() == '1'),
+    var id = obj.options[obj.selectedIndex].value,
       sig = this.env.identity,
       delim = this.env.recipients_separator,
-      rx_delim = RegExp.escape(delim),
-      headers = ['replyto', 'bcc'];
+      rx_delim = RegExp.escape(delim);
 
     // update reply-to/bcc fields with addresses defined in identities
-    for (i in headers) {
-      var key = headers[i],
-        old_val = sig && this.env.identities[sig] ? this.env.identities[sig][key] : '',
-        new_val = id && this.env.identities[id] ? this.env.identities[id][key] : '',
+    $.each(['replyto', 'bcc'], function() {
+      var rx, key = this,
+        old_val = sig && ref.env.identities[sig] ? ref.env.identities[sig][key] : '',
+        new_val = id && ref.env.identities[id] ? ref.env.identities[id][key] : '',
         input = $('[name="_'+key+'"]'), input_val = input.val();
 
       // remove old address(es)
@@ -4098,7 +4000,7 @@
 
       if (old_val || new_val)
         input.val(input_val).change();
-    }
+    });
 
     // enable manual signature insert
     if (this.env.signatures && this.env.signatures[id]) {
@@ -4108,92 +4010,7 @@
     else
       this.enable_command('insert-sig', false);
 
-    if (!is_html) {
-      // remove the 'old' signature
-      if (show_sig && sig && this.env.signatures && this.env.signatures[sig]) {
-        sig = this.env.signatures[sig].text;
-        sig = sig.replace(/\r\n/g, '\n');
-
-        p = this.env.top_posting ? message.indexOf(sig) : message.lastIndexOf(sig);
-        if (p >= 0)
-          message = message.substring(0, p) + message.substring(p+sig.length, message.length);
-      }
-      // add the new signature string
-      if (show_sig && this.env.signatures && this.env.signatures[id]) {
-        sig = this.env.signatures[id].text;
-        sig = sig.replace(/\r\n/g, '\n');
-
-        if (this.env.top_posting) {
-          if (p >= 0) { // in place of removed signature
-            message = message.substring(0, p) + sig + message.substring(p, message.length);
-            cursor_pos = p - 1;
-          }
-          else if (!message) { // empty message
-            cursor_pos = 0;
-            message = '\n\n' + sig;
-          }
-          else if (pos = this.get_caret_pos(input_message.get(0))) { // at cursor position
-            message = message.substring(0, pos) + '\n' + sig + '\n\n' + message.substring(pos, message.length);
-            cursor_pos = pos;
-          }
-          else { // on top
-            cursor_pos = 0;
-            message = '\n\n' + sig + '\n\n' + message.replace(/^[\r\n]+/, '');
-          }
-        }
-        else {
-          message = message.replace(/[\r\n]+$/, '');
-          cursor_pos = !this.env.top_posting && message.length ? message.length+1 : 0;
-          message += '\n\n' + sig;
-        }
-      }
-      else
-        cursor_pos = this.env.top_posting ? 0 : message.length;
-
-      input_message.val(message);
-
-      // move cursor before the signature
-      this.set_caret_pos(input_message.get(0), cursor_pos);
-    }
-    else if (show_sig && this.env.signatures) {  // html
-      var editor = tinyMCE.get(this.env.composebody),
-        sigElem = editor.dom.get('_rc_sig');
-
-      // Append the signature as a div within the body
-      if (!sigElem) {
-        var body = editor.getBody(),
-          doc = editor.getDoc();
-
-        sigElem = doc.createElement('div');
-        sigElem.setAttribute('id', '_rc_sig');
-
-        if (this.env.top_posting) {
-          // if no existing sig and top posting then insert at caret pos
-          editor.getWin().focus(); // correct focus in IE & Chrome
-
-          var node = editor.selection.getNode();
-          if (node.nodeName == 'BODY') {
-            // no real focus, insert at start
-            body.insertBefore(sigElem, body.firstChild);
-            body.insertBefore(doc.createElement('br'), body.firstChild);
-          }
-          else {
-            body.insertBefore(sigElem, node.nextSibling);
-            body.insertBefore(doc.createElement('br'), node.nextSibling);
-          }
-        }
-        else {
-          if (bw.ie)  // add empty line before signature on IE
-            body.appendChild(doc.createElement('br'));
-
-          body.appendChild(sigElem);
-        }
-      }
-
-      if (this.env.signatures[id])
-        sigElem.innerHTML = this.env.signatures[id].html;
-    }
-
+    this.editor.change_signature(id, show_sig);
     this.env.identity = id;
     this.triggerEvent('change_identity');
     return true;
@@ -4235,17 +4052,17 @@
           } else if (this.contentWindow) {
             d = this.contentWindow.document;
           }
-          content = d.childNodes[0].innerHTML;
+          content = d.childNodes[1].innerHTML;
         } catch (err) {}
 
-        if (!content.match(/add2attachment/) && (!bw.opera || (rcmail.env.uploadframe && rcmail.env.uploadframe == e.data.ts))) {
+        if (!content.match(/add2attachment/) && (!bw.opera || (ref.env.uploadframe && ref.env.uploadframe == e.data.ts))) {
           if (!content.match(/display_message/))
-            rcmail.display_message(rcmail.get_label('fileuploaderror'), 'error');
-          rcmail.remove_from_attachment_list(e.data.ts);
+            ref.display_message(ref.get_label('fileuploaderror'), 'error');
+          ref.remove_from_attachment_list(e.data.ts);
         }
         // Opera hack: handle double onload
         if (bw.opera)
-          rcmail.env.uploadframe = e.data.ts;
+          ref.env.uploadframe = e.data.ts;
       });
 
       // display upload indicator and cancel button
@@ -4269,15 +4086,26 @@
   // called from upload page
   this.add2attachment_list = function(name, att, upload_id)
   {
+    if (upload_id)
+      this.triggerEvent('fileuploaded', {name: name, attachment: att, id: upload_id});
+
+    if (!this.env.attachments)
+      this.env.attachments = {};
+
+    if (upload_id && this.env.attachments[upload_id])
+      delete this.env.attachments[upload_id];
+
+    this.env.attachments[name] = att;
+
     if (!this.gui_objects.attachmentlist)
       return false;
 
-    if (!att.complete && ref.env.loadingicon)
-      att.html = '<img src="'+ref.env.loadingicon+'" alt="" class="uploading" />' + att.html;
+    if (!att.complete && this.env.loadingicon)
+      att.html = '<img src="'+this.env.loadingicon+'" alt="" class="uploading" />' + att.html;
 
     if (!att.complete && att.frame)
       att.html = '<a title="'+this.get_label('cancel')+'" onclick="return rcmail.cancel_attachment_upload(\''+name+'\', \''+att.frame+'\');" href="#cancelupload" class="cancelupload">'
-        + (this.env.cancelicon ? '<img src="'+this.env.cancelicon+'" alt="" />' : this.get_label('cancel')) + '</a>' + att.html;
+        + (this.env.cancelicon ? '<img src="'+this.env.cancelicon+'" alt="'+this.get_label('cancel')+'" />' : this.get_label('cancel')) + '</a>' + att.html;
 
     var indicator, li = $('<li>');
 
@@ -4294,10 +4122,9 @@
       li.appendTo(this.gui_objects.attachmentlist);
     }
 
-    if (upload_id && this.env.attachments[upload_id])
-      delete this.env.attachments[upload_id];
-
-    this.env.attachments[name] = att;
+    // set tabindex attribute
+    var tabindex = $(this.gui_objects.attachmentlist).attr('data-tabindex') || '0';
+    li.find('a').attr('tabindex', tabindex);
 
     return true;
   };
@@ -4330,13 +4157,13 @@
 
   this.upload_progress_start = function(action, name)
   {
-    setTimeout(function() { rcmail.http_request(action, {_progress: name}); },
+    setTimeout(function() { ref.http_request(action, {_progress: name}); },
       this.env.upload_progress_time * 1000);
   };
 
   this.upload_progress_update = function(param)
   {
-    var elem = $('#'+param.name + '> span');
+    var elem = $('#'+param.name + ' > span');
 
     if (!elem.length || !param.text)
       return;
@@ -4361,7 +4188,8 @@
   {
     if (value != '') {
       var r, lock = this.set_busy(true, 'searching'),
-        url = this.search_params(value);
+        url = this.search_params(value),
+        action = this.env.action == 'compose' && this.contact_list ? 'search-contacts' : 'search';
 
       if (this.message_list)
         this.clear_message_list();
@@ -4376,7 +4204,6 @@
       // reset vars
       this.env.current_page = 1;
 
-      var action = this.env.action == 'compose' && this.contact_list ? 'search-contacts' : 'search';
       r = this.http_request(action, url, lock);
 
       this.env.qsearch = {lock: lock, request: r};
@@ -4390,9 +4217,9 @@
 
   this.continue_search = function(request_id)
   {
-    var lock = ref.set_busy(true, 'stillsearching');
+    var lock = this.set_busy(true, 'stillsearching');
 
-    setTimeout(function(){
+    setTimeout(function() {
       var url = ref.search_params();
       url._continue = request_id;
       ref.env.qsearch = { lock: lock, request: ref.http_request('search', url, lock) };
@@ -4400,7 +4227,7 @@
   };
 
   // build URL params for search
-  this.search_params = function(search, filter, smods)
+  this.search_params = function(search, filter)
   {
     var n, url = {}, mods_arr = [],
       mods = this.env.search_mods,
@@ -4419,11 +4246,11 @@
     if (search) {
       url._q = search;
 
-      if (!smods && mods && this.message_list)
-        smods = mods[mbox] || mods['*'];
+      if (mods && this.message_list)
+        mods = mods[mbox] || mods['*'];
 
-      if (smods) {
-        for (n in smods)
+      if (mods) {
+        for (n in mods)
           mods_arr.push(n);
         url._headers = mods_arr.join(',');
       }
@@ -4469,7 +4296,7 @@
 
   this.set_searchmods = function(mods)
   {
-    var mbox = rcmail.env.mailbox,
+    var mbox = this.env.mailbox,
       scope = this.env.search_scope || 'base';
 
     if (scope == 'all')
@@ -4478,35 +4305,38 @@
     if (!this.env.search_mods)
       this.env.search_mods = {};
 
-    this.env.search_mods[mbox] = mods;
+    if (mbox)
+      this.env.search_mods[mbox] = mods;
   };
 
   this.is_multifolder_listing = function()
   {
-    return typeof this.env.multifolder_listing != 'undefined' ? this.env.multifolder_listing :
+    return this.env.multifolder_listing !== undefined ? this.env.multifolder_listing :
       (this.env.search_request && (this.env.search_scope || 'base') != 'base');
-  }
+  };
 
   this.sent_successfully = function(type, msg, folders)
   {
     this.display_message(msg, type);
+    this.compose_skip_unsavedcheck = true;
 
     if (this.env.extwin) {
-      var rc = this.opener();
       this.lock_form(this.gui_objects.messageform);
+
+      var rc = this.opener();
       if (rc) {
         rc.display_message(msg, type);
         // refresh the folder where sent message was saved or replied message comes from
         if (folders && rc.env.task == 'mail' && rc.env.action == '' && $.inArray(rc.env.mailbox, folders) >= 0) {
-          // @TODO: try with 'checkmail' here when #1485186 is fixed. See also #1489249.
-          rc.command('list');
+          rc.command('checkmail');
         }
       }
-      setTimeout(function(){ window.close() }, 1000);
+
+      setTimeout(function() { window.close(); }, 1000);
     }
     else {
       // before redirect we need to wait some time for Chrome (#1486177)
-      setTimeout(function(){ ref.list_mailbox(); }, 500);
+      setTimeout(function() { ref.list_mailbox(); }, 500);
     }
   };
 
@@ -4521,8 +4351,7 @@
     if (this.ksearch_timer)
       clearTimeout(this.ksearch_timer);
 
-    var highlight,
-      key = rcube_event.get_keycode(e),
+    var key = rcube_event.get_keycode(e),
       mod = rcube_event.get_modifier(e);
 
     switch (key) {
@@ -4531,9 +4360,9 @@
         if (!this.ksearch_visible())
           return;
 
-        var dir = key==38 ? 1 : 0;
+        var dir = key == 38 ? 1 : 0,
+          highlight = document.getElementById('rcmkSearchItem' + this.ksearch_selected);
 
-        highlight = document.getElementById('rcmkSearchItem' + this.ksearch_selected);
         if (!highlight)
           highlight = this.ksearch_pane.__ul.firstChild;
 
@@ -4576,7 +4405,7 @@
 
   this.ksearch_visible = function()
   {
-    return (this.ksearch_selected !== null && this.ksearch_selected !== undefined && this.ksearch_value);
+    return this.ksearch_selected !== null && this.ksearch_selected !== undefined && this.ksearch_value;
   };
 
   this.ksearch_select = function(node)
@@ -4586,9 +4415,9 @@
     }
 
     if (node) {
-      $(node).addClass('selected').removeAttr('aria-selected', 'true');
+      $(node).addClass('selected').attr('aria-selected', 'true');
       this.ksearch_selected = node._rcm_id;
-      $(this.ksearch_input).attr('aria-activedecendant', 'rcmkSearchItem' + this.ksearch_selected);
+      $(this.ksearch_input).attr('aria-activedescendant', 'rcmkSearchItem' + this.ksearch_selected);
     }
   };
 
@@ -4627,9 +4456,7 @@
     this.ksearch_input.value = pre + insert + end;
 
     // set caret to insert pos
-    cpos = p+insert.length;
-    if (this.ksearch_input.setSelectionRange)
-      this.ksearch_input.setSelectionRange(cpos, cpos);
+    this.set_caret_pos(this.ksearch_input, p + insert.length);
 
     if (trigger) {
       this.triggerEvent('autocomplete_insert', { field:this.ksearch_input, insert:insert, data:this.env.contacts[id] });
@@ -4729,10 +4556,6 @@
       this.ksearch_pane = $('<div>').attr('id', 'rcmKSearchpane').attr('role', 'listbox')
         .css({ position:'absolute', 'z-index':30000 }).append(ul).appendTo(document.body);
       this.ksearch_pane.__ul = ul[0];
-
-      // register (delegate) event handlers
-      ul.on('mouseover', 'li', function(e){ ref.ksearch_select(e.target); })
-        .on('onmouseup', 'li', function(e){ ref.ksearch_click(e.target); })
     }
 
     ul = this.ksearch_pane.__ul;
@@ -4755,7 +4578,7 @@
     // add each result line to list
     if (results && (len = results.length)) {
       for (i=0; i < len && maxlen > 0; i++) {
-        text = typeof results[i] === 'object' ? results[i].name : results[i];
+        text = typeof results[i] === 'object' ? (results[i].display || results[i].name) : results[i];
         type = typeof results[i] === 'object' ? results[i].type : '';
         id = i + this.env.contacts.length;
         $('<li>').attr('id', 'rcmkSearchItem' + id)
@@ -4763,23 +4586,26 @@
           .html(this.quote_html(text.replace(new RegExp('('+RegExp.escape(value)+')', 'ig'), '##$1%%')).replace(/##([^%]+)%%/g, '<b>$1</b>'))
           .addClass(type || '')
           .appendTo(ul)
+          .mouseover(function() { ref.ksearch_select(this); })
+          .mouseup(function() { ref.ksearch_click(this); })
           .get(0)._rcm_id = id;
         maxlen -= 1;
       }
     }
 
     if (ul.childNodes.length) {
-      this.ksearch_pane.show();
-      // select the first
-      if (!this.env.contacts.length) {
-        this.ksearch_select($('li:first', ul).get(0));
-      }
-
       // set the right aria-* attributes to the input field
       $(this.ksearch_input)
         .attr('aria-haspopup', 'true')
         .attr('aria-expanded', 'true')
-        .attr('aria-owns', 'rcmKSearchpane')
+        .attr('aria-owns', 'rcmKSearchpane');
+
+      this.ksearch_pane.show();
+
+      // select the first
+      if (!this.env.contacts.length) {
+        this.ksearch_select($('li:first', ul).get(0));
+      }
     }
 
     if (len)
@@ -4818,7 +4644,7 @@
     $(this.ksearch_input)
       .attr('aria-haspopup', 'false')
       .attr('aria-expanded', 'false')
-      .removeAttr('aria-activedecendant')
+      .removeAttr('aria-activedescendant')
       .removeAttr('aria-owns');
 
     this.ksearch_destroy();
@@ -4913,6 +4739,7 @@
   this.list_contacts = function(src, group, page)
   {
     var win, folder, url = {},
+      refresh = src === undefined && group === undefined && page === undefined,
       target = window;
 
     if (!src)
@@ -4925,7 +4752,7 @@
       page = this.env.current_page = 1;
       this.reset_qsearch();
     }
-    else if (group != this.env.group)
+    else if (!refresh && group != this.env.group)
       page = this.env.current_page = 1;
 
     if (this.env.search_id)
@@ -4954,7 +4781,8 @@
         $(this.gui_objects.addresslist_title).html(this.get_label('contacts'));
     }
 
-    this.select_folder(folder, '', true);
+    if (!this.env.search_id)
+      this.select_folder(folder, '', true);
 
     // load contacts remotely
     if (this.gui_objects.contactslist) {
@@ -5059,9 +4887,12 @@
     else if (framed)
       return false;
 
-    if (action && (cid || action=='add') && !this.drag_active) {
+    if (action && (cid || action == 'add') && !this.drag_active) {
       if (this.env.group)
         url._gid = this.env.group;
+
+      if (this.env.search_request)
+        url._search = this.env.search_request;
 
       url._action = action;
       url._source = this.env.source;
@@ -5076,7 +4907,9 @@
   // add/delete member to/from the group
   this.group_member_change = function(what, cid, source, gid)
   {
-    what = what == 'add' ? 'add' : 'del';
+    if (what != 'add')
+      what = 'del';
+
     var label = this.get_label(what == 'add' ? 'addingmember' : 'removingmember'),
       lock = this.display_message(label, 'loading'),
       post_data = {_cid: cid, _source: source, _gid: gid};
@@ -5113,7 +4946,7 @@
   // copy contact(s) to the specified target (group or directory)
   this.copy_contacts = function(to)
   {
-    var n, dest = to.type == 'group' ? to.source : to.id,
+    var dest = to.type == 'group' ? to.source : to.id,
       source = this.env.source,
       group = this.env.group ? this.env.group : '',
       cid = this.contact_list.get_selection().join(',');
@@ -5184,13 +5017,14 @@
   {
     var selection = this.contact_list ? this.contact_list.get_selection() : [];
 
-    // exit if no mailbox specified or if selection is empty
+    // exit if no contact specified or if selection is empty
     if (!selection.length && !this.env.cid)
       return;
 
     var n, a_cids = [],
       label = action == 'delete' ? 'contactdeleting' : 'movingcontact',
       lock = this.display_message(this.get_label(label), 'loading');
+
     if (this.env.cid)
       a_cids.push(this.env.cid);
     else {
@@ -5228,15 +5062,15 @@
   // update a contact record in the list
   this.update_contact_row = function(cid, cols_arr, newcid, source, data)
   {
-    var c, row, list = this.contact_list;
+    var list = this.contact_list;
 
     cid = this.html_identifier(cid);
 
     // when in searching mode, concat cid with the source name
     if (!list.rows[cid]) {
-      cid = cid+'-'+source;
+      cid = cid + '-' + source;
       if (newcid)
-        newcid = newcid+'-'+source;
+        newcid = newcid + '-' + source;
     }
 
     list.update_row(cid, cols_arr, newcid, true);
@@ -5252,7 +5086,7 @@
     var c, col, list = this.contact_list,
       row = { cols:[] };
 
-    row.id = 'rcmrow'+this.html_identifier(cid);
+    row.id = 'rcmrow' + this.html_identifier(cid);
     row.className = 'contact ' + (classes || '');
 
     if (list.in_selection(cid))
@@ -5288,7 +5122,7 @@
       return false;
     });
 
-    $('select.addfieldmenu').change(function(e) {
+    $('select.addfieldmenu').change(function() {
       ref.insert_edit_field($(this).val(), $(this).attr('rel'), this);
       this.selectedIndex = 0;
     });
@@ -5313,29 +5147,55 @@
         .submit(function() { $('input.mainaction').click(); return false; });
   };
 
+  // group creation dialog
   this.group_create = function()
   {
-    this.add_input_row('contactgroup');
+    var input = $('<input>').attr('type', 'text'),
+      content = $('<label>').text(this.get_label('namex')).append(input);
+
+    this.show_popup_dialog(content, this.get_label('newgroup'),
+      [{
+        text: this.get_label('save'),
+        click: function() {
+          var name;
+
+          if (name = input.val()) {
+            ref.http_post('group-create', {_source: ref.env.source, _name: name},
+              ref.set_busy(true, 'loading'));
+          }
+
+          $(this).dialog('close');
+        }
+      }]
+    );
   };
 
+  // group rename dialog
   this.group_rename = function()
   {
-    if (!this.env.group || !this.gui_objects.folderlist)
+    if (!this.env.group)
       return;
 
-    if (!this.name_input) {
-      this.enable_command('list', 'listgroup', false);
-      this.name_input = $('<input>').attr('type', 'text').val(this.env.contactgroups['G'+this.env.source+this.env.group].name);
-      this.name_input.bind('keydown', function(e){ return rcmail.add_input_keydown(e); });
-      this.env.group_renaming = true;
+    var group_name = this.env.contactgroups['G' + this.env.source + this.env.group].name,
+      input = $('<input>').attr('type', 'text').val(group_name),
+      content = $('<label>').text(this.get_label('namex')).append(input);
 
-      var link, li = this.get_folder_li('G'+this.env.source+this.env.group,'',true);
-      if (li && (link = li.firstChild)) {
-        $(link).hide().before(this.name_input);
-      }
-    }
+    this.show_popup_dialog(content, this.get_label('grouprename'),
+      [{
+        text: this.get_label('save'),
+        click: function() {
+          var name;
 
-    this.name_input.select().focus();
+          if ((name = input.val()) && name != group_name) {
+            ref.http_post('group-rename', {_source: ref.env.source, _gid: ref.env.group, _name: name},
+              ref.set_busy(true, 'loading'));
+          }
+
+          $(this).dialog('close');
+        }
+      }],
+      {open: function() { input.select(); }}
+    );
   };
 
   this.group_delete = function()
@@ -5350,6 +5210,7 @@
   this.remove_group_item = function(prop)
   {
     var key = 'G'+prop.source+prop.id;
+
     if (this.treelist.remove(key)) {
       this.triggerEvent('group_delete', { source:prop.source, id:prop.id });
       delete this.env.contactfolders[key];
@@ -5359,122 +5220,38 @@
     this.list_contacts(prop.source, 0);
   };
 
-  // @TODO: maybe it would be better to use popup instead of inserting input to the list?
-  this.add_input_row = function(type)
-  {
-    if (!this.gui_objects.folderlist)
-      return;
-
-    if (!this.name_input) {
-      this.name_input = $('<input>').attr('type', 'text').data('tt', type);
-      this.name_input.bind('keydown', function(e){ return rcmail.add_input_keydown(e); });
-      this.name_input_li = $('<li>').addClass(type).append(this.name_input);
-
-      var ul, li;
-
-      // find list (UL) element
-      if (type == 'contactsearch')
-        ul = this.gui_objects.folderlist;
-      else
-        ul = $('ul.groups', this.get_folder_li(this.env.source,'',true));
-
-      // append to the list
-      li = $('li:last', ul);
-      if (li.length)
-        this.name_input_li.insertAfter(li);
-      else {
-        this.name_input_li.appendTo(ul);
-        ul.show(); // make sure the list is visible
-      }
-    }
-
-    this.name_input.select().focus();
-  };
-
   //remove selected contacts from current active group
   this.group_remove_selected = function()
   {
-    ref.http_post('group-delmembers', {_cid: this.contact_list.selection,
+    this.http_post('group-delmembers', {_cid: this.contact_list.selection,
       _source: this.env.source, _gid: this.env.group});
   };
 
   //callback after deleting contact(s) from current group
   this.remove_group_contacts = function(props)
   {
-    if('undefined' != typeof this.env.group && (this.env.group === props.gid)){
+    if (this.env.group !== undefined && (this.env.group === props.gid)) {
       var n, selection = this.contact_list.get_selection();
       for (n=0; n<selection.length; n++) {
         id = selection[n];
         this.contact_list.remove_row(id, (n == selection.length-1));
       }
     }
-  }
-
-  // handler for keyboard events on the input field
-  this.add_input_keydown = function(e)
-  {
-    var key = rcube_event.get_keycode(e),
-      input = $(e.target), itype = input.data('tt');
-
-    // enter
-    if (key == 13) {
-      var newname = input.val();
-
-      if (newname) {
-        var lock = this.set_busy(true, 'loading');
-
-        if (itype == 'contactsearch')
-          this.http_post('search-create', {_search: this.env.search_request, _name: newname}, lock);
-        else if (this.env.group_renaming)
-          this.http_post('group-rename', {_source: this.env.source, _gid: this.env.group, _name: newname}, lock);
-        else
-          this.http_post('group-create', {_source: this.env.source, _name: newname}, lock);
-      }
-      return false;
-    }
-    // escape
-    else if (key == 27)
-      this.reset_add_input();
-
-    return true;
-  };
-
-  this.reset_add_input = function()
-  {
-    if (this.name_input) {
-      var li = this.name_input.parent();
-      if (this.env.group_renaming) {
-        li.children().last().show();
-        this.env.group_renaming = false;
-      }
-      else if ($('li', li.parent()).length == 1)
-        li.parent().hide();
-
-      this.name_input.remove();
-
-      if (this.name_input_li)
-        this.name_input_li.remove();
-
-      this.name_input = this.name_input_li = null;
-    }
-
-    this.enable_command('list', 'listgroup', true);
   };
 
   // callback for creating a new contact group
   this.insert_contact_group = function(prop)
   {
-    this.reset_add_input();
-
     prop.type = 'group';
+
     var key = 'G'+prop.source+prop.id,
       link = $('<a>').attr('href', '#')
         .attr('rel', prop.source+':'+prop.id)
-        .click(function() { return rcmail.command('listgroup', prop, this); })
+        .click(function() { return ref.command('listgroup', prop, this); })
         .html(prop.name);
 
     this.env.contactfolders[key] = this.env.contactgroups[key] = prop;
-    this.treelist.insert({ id:key, html:link, classes:['contactgroup'] }, prop.source, true);
+    this.treelist.insert({ id:key, html:link, classes:['contactgroup'] }, prop.source, 'contactgroup');
 
     this.triggerEvent('group_insert', { id:prop.id, source:prop.source, name:prop.name, li:this.treelist.get_item(key) });
   };
@@ -5482,8 +5259,6 @@
   // callback for renaming a contact group
   this.update_contact_group = function(prop)
   {
-    this.reset_add_input();
-
     var key = 'G'+prop.source+prop.id,
       newnode = {};
 
@@ -5505,7 +5280,7 @@
       newnode.id = newkey;
       newnode.html = $('<a>').attr('href', '#')
         .attr('rel', prop.source+':'+prop.newid)
-        .click(function() { return rcmail.command('listgroup', newprop, this); })
+        .click(function() { return ref.command('listgroup', newprop, this); })
         .html(prop.name);
     }
     // update displayed group name
@@ -5522,9 +5297,11 @@
 
   this.update_group_commands = function()
   {
-    var source = this.env.source != '' ? this.env.address_sources[this.env.source] : null;
-    this.enable_command('group-create', (source && source.groups && !source.readonly));
-    this.enable_command('group-rename', 'group-delete', (source && source.groups && this.env.group && !source.readonly));
+    var source = this.env.source != '' ? this.env.address_sources[this.env.source] : null,
+      supported = source && source.groups && !source.readonly;
+
+    this.enable_command('group-create', supported);
+    this.enable_command('group-rename', 'group-delete', supported && this.env.group);
   };
 
   this.init_edit_field = function(col, elem)
@@ -5562,6 +5339,7 @@
 
       if (appendcontainer.length && appendcontainer.get(0).nodeName == 'FIELDSET') {
         var input, colprop = this.env.coltypes[col],
+          input_id = 'ff_' + col + (colprop.count || 0),
           row = $('<div>').addClass('row'),
           cell = $('<div>').addClass('contactfieldcontent data'),
           label = $('<div>').addClass('contactfieldlabel label');
@@ -5569,13 +5347,14 @@
         if (colprop.subtypes_select)
           label.html(colprop.subtypes_select);
         else
-          label.html(colprop.label);
+          label.html('<label for="' + input_id + '">' + colprop.label + '</label>');
 
         var name_suffix = colprop.limit != 1 ? '[]' : '';
+
         if (colprop.type == 'text' || colprop.type == 'date') {
           input = $('<input>')
             .addClass('ff_'+col)
-            .attr({type: 'text', name: '_'+col+name_suffix, size: colprop.size})
+            .attr({type: 'text', name: '_'+col+name_suffix, size: colprop.size, id: input_id})
             .appendTo(cell);
 
           this.init_edit_field(col, input);
@@ -5586,18 +5365,19 @@
         else if (colprop.type == 'textarea') {
           input = $('<textarea>')
             .addClass('ff_'+col)
-            .attr({ name: '_'+col+name_suffix, cols:colprop.size, rows:colprop.rows })
+            .attr({ name: '_'+col+name_suffix, cols:colprop.size, rows:colprop.rows, id: input_id })
             .appendTo(cell);
 
           this.init_edit_field(col, input);
         }
         else if (colprop.type == 'composite') {
-          var childcol, cp, first, templ, cols = [], suffices = [];
+          var i, childcol, cp, first, templ, cols = [], suffices = [];
+
           // read template for composite field order
           if ((templ = this.env[col+'_template'])) {
-            for (var j=0; j < templ.length; j++) {
-              cols.push(templ[j][1]);
-              suffices.push(templ[j][2]);
+            for (i=0; i < templ.length; i++) {
+              cols.push(templ[i][1]);
+              suffices.push(templ[i][2]);
             }
           }
           else {  // list fields according to appearance in colprop
@@ -5605,7 +5385,7 @@
               cols.push(childcol);
           }
 
-          for (var i=0; i < cols.length; i++) {
+          for (i=0; i < cols.length; i++) {
             childcol = cols[i];
             cp = colprop.childs[childcol];
             input = $('<input>')
@@ -5621,7 +5401,7 @@
         else if (colprop.type == 'select') {
           input = $('<select>')
             .addClass('ff_'+col)
-            .attr('name', '_'+col+name_suffix)
+            .attr({ 'name': '_'+col+name_suffix, id: input_id })
             .appendTo(cell);
 
           var options = input.attr('options');
@@ -5682,7 +5462,7 @@
   {
     if (form && form.elements._photo.value) {
       this.async_upload_form(form, 'upload-photo', function(e) {
-        rcmail.set_busy(false, null, rcmail.file_upload_id);
+        ref.set_busy(false, null, ref.file_upload_id);
       });
 
       // display upload indicator
@@ -5742,16 +5522,14 @@
   // callback for creating a new saved search record
   this.insert_saved_search = function(name, id)
   {
-    this.reset_add_input();
-
     var key = 'S'+id,
       link = $('<a>').attr('href', '#')
         .attr('rel', id)
-        .click(function() { return rcmail.command('listsearch', id, this); })
+        .click(function() { return ref.command('listsearch', id, this); })
         .html(name),
       prop = { name:name, id:id };
 
-    this.treelist.insert({ id:key, html:link, classes:['contactsearch'] }, null, 'contactsearch');
+    this.savedsearchlist.insert({ id:key, html:link, classes:['contactsearch'] }, null, 'contactsearch');
     this.select_folder(key,'',true);
     this.enable_command('search-delete', true);
     this.env.search_id = id;
@@ -5759,10 +5537,27 @@
     this.triggerEvent('abook_search_insert', prop);
   };
 
-  // creates an input for saved search name
+  // creates a dialog for saved search
   this.search_create = function()
   {
-    this.add_input_row('contactsearch');
+    var input = $('<input>').attr('type', 'text'),
+      content = $('<label>').text(this.get_label('namex')).append(input);
+
+    this.show_popup_dialog(content, this.get_label('searchsave'),
+      [{
+        text: this.get_label('save'),
+        click: function() {
+          var name;
+
+          if (name = input.val()) {
+            ref.http_post('search-create', {_search: ref.env.search_request, _name: name},
+              ref.set_busy(true, 'loading'));
+          }
+
+          $(this).dialog('close');
+        }
+      }]
+    );
   };
 
   this.search_delete = function()
@@ -5777,7 +5572,7 @@
   this.remove_search_item = function(id)
   {
     var li, key = 'S'+id;
-    if (this.treelist.remove(key)) {
+    if (this.savedsearchlist.remove(key)) {
       this.triggerEvent('search_delete', { id:id, li:li });
     }
 
@@ -5790,14 +5585,20 @@
 
   this.listsearch = function(id)
   {
-    var folder, lock = this.set_busy(true, 'searching');
+    var lock = this.set_busy(true, 'searching');
 
     if (this.contact_list) {
       this.list_contacts_clear();
     }
 
     this.reset_qsearch();
-    this.select_folder('S'+id, '', true);
+
+    if (this.savedsearchlist) {
+      this.treelist.select('');
+      this.savedsearchlist.select('S'+id);
+    }
+    else
+      this.select_folder('S'+id, '', true);
 
     // reset vars
     this.env.current_page = 1;
@@ -5867,10 +5668,8 @@
       id = this.env.iid ? this.env.iid : selection[0];
 
     // submit request with appended token
-    if (confirm(this.get_label('deleteidentityconfirm')))
-      this.goto_url('delete-identity', { _iid: id, _token: this.env.request_token }, true);
-
-    return true;
+    if (id && confirm(this.get_label('deleteidentityconfirm')))
+      this.http_post('settings/delete-identity', { _iid: id }, true);
   };
 
   this.update_identity_row = function(id, name, add)
@@ -5914,6 +5713,23 @@
         frame.location.href = this.env.blankpage;
       }
     }
+
+    this.enable_command('delete', false);
+  };
+
+  this.remove_identity = function(id)
+  {
+    var frame, list = this.identity_list,
+      rid = this.html_identifier(id);
+
+    if (list && id) {
+      list.remove_row(rid);
+      if (this.env.contentframe && (frame = this.get_frame_window(this.env.contentframe))) {
+        frame.location.href = this.env.blankpage;
+      }
+    }
+
+    this.enable_command('delete', false);
   };
 
 
@@ -5927,64 +5743,56 @@
 
     this.last_sub_rx = RegExp('['+delim+']?[^'+delim+']+$');
 
-    this.subscription_list = new rcube_list_widget(this.gui_objects.subscriptionlist,
-      {multiselect:false, draggable:true, keyboard:true, toggleselect:true});
+    this.subscription_list = new rcube_treelist_widget(this.gui_objects.subscriptionlist, {
+        selectable: true,
+        tabexit: false,
+        id_prefix: 'rcmli',
+        id_encode: this.html_identifier_encode,
+        id_decode: this.html_identifier_decode,
+        searchbox: '#foldersearch'
+    });
+
     this.subscription_list
-      .addEventListener('select', function(o){ ref.subscription_select(o); })
-      .addEventListener('dragstart', function(o){ ref.drag_active = true; })
-      .addEventListener('dragend', function(o){ ref.subscription_move_folder(o); })
-      .addEventListener('initrow', function (row) {
-        row.obj.onmouseover = function() { ref.focus_subscription(row.id); };
-        row.obj.onmouseout = function() { ref.unfocus_subscription(row.id); };
-      })
-      .init()
-      .focus();
+      .addEventListener('select', function(node) { ref.subscription_select(node.id); })
+      .addEventListener('collapse', function(node) { ref.folder_collapsed(node) })
+      .addEventListener('expand', function(node) { ref.folder_collapsed(node) })
+      .addEventListener('search', function(p) { if (p.query) ref.subscription_select(); })
+      .draggable({cancel: 'li.mailbox.root'})
+      .droppable({
+        // @todo: find better way, accept callback is executed for every folder
+        // on the list when dragging starts (and stops), this is slow, but
+        // I didn't find a method to check droptarget on over event
+        accept: function(node) {
+          var source_folder = ref.folder_id2name($(node).attr('id')),
+            dest_folder = ref.folder_id2name(this.id),
+            source = ref.env.subscriptionrows[source_folder],
+            dest = ref.env.subscriptionrows[dest_folder];
 
-    $('#mailboxroot')
-      .mouseover(function(){ ref.focus_subscription(this.id); })
-      .mouseout(function(){ ref.unfocus_subscription(this.id); })
-  };
+          return source && !source[2]
+            && dest_folder != source_folder.replace(ref.last_sub_rx, '')
+            && !dest_folder.startsWith(source_folder + ref.env.delimiter);
+        },
+        drop: function(e, ui) {
+          var source = ref.folder_id2name(ui.draggable.attr('id')),
+            dest = ref.folder_id2name(this.id);
 
-  this.focus_subscription = function(id)
-  {
-    var row, folder;
-
-    if (this.drag_active && this.env.mailbox && (row = document.getElementById(id)))
-      if (this.env.subscriptionrows[id] &&
-          (folder = this.env.subscriptionrows[id][0]) !== null
-      ) {
-        if (this.check_droptarget(folder) &&
-            !this.env.subscriptionrows[this.get_folder_row_id(this.env.mailbox)][2] &&
-            folder != this.env.mailbox.replace(this.last_sub_rx, '') &&
-            !folder.startsWith(this.env.mailbox + this.env.delimiter)
-        ) {
-          this.env.dstfolder = folder;
-          $(row).addClass('droptarget');
+          ref.subscription_move_folder(source, dest);
         }
-      }
+      });
   };
 
-  this.unfocus_subscription = function(id)
+  this.folder_id2name = function(id)
   {
-    var row = $('#'+id);
-
-    this.env.dstfolder = null;
-
-    if (this.env.subscriptionrows[id] && row.length)
-      row.removeClass('droptarget');
-    else
-      $(this.subscription_list.frame).removeClass('droptarget');
+    return ref.html_identifier_decode(id.replace(/^rcmli/, ''));
   };
 
-  this.subscription_select = function(list)
+  this.subscription_select = function(id)
   {
-    var id, folder;
+    var folder;
 
-    if (list && (id = list.get_single_selection()) &&
-        (folder = this.env.subscriptionrows['rcmrow'+id])
-    ) {
-      this.env.mailbox = folder[0];
-      this.show_folder(folder[0]);
+    if (id && id != '*' && (folder = this.env.subscriptionrows[id])) {
+      this.env.mailbox = id;
+      this.show_folder(id);
       this.enable_command('delete-folder', !folder[2]);
     }
     else {
@@ -5994,24 +5802,18 @@
     }
   };
 
-  this.subscription_move_folder = function(list)
+  this.subscription_move_folder = function(from, to)
   {
-    if (this.env.mailbox && this.env.dstfolder !== null &&
-        this.env.dstfolder != this.env.mailbox &&
-        this.env.dstfolder != this.env.mailbox.replace(this.last_sub_rx, '')
-    ) {
-      var path = this.env.mailbox.split(this.env.delimiter),
+    if (from && to !== null && from != to && to != from.replace(this.last_sub_rx, '')) {
+      var path = from.split(this.env.delimiter),
         basename = path.pop(),
-        newname = this.env.dstfolder === '' ? basename : this.env.dstfolder + this.env.delimiter + basename;
+        newname = to === '' || to === '*' ? basename : to + this.env.delimiter + basename;
 
-      if (newname != this.env.mailbox) {
-        this.http_post('rename-folder', {_folder_oldname: this.env.mailbox, _folder_newname: newname}, this.set_busy(true, 'foldermoving'));
-        this.subscription_list.draglayer.hide();
+      if (newname != from) {
+        this.http_post('rename-folder', {_folder_oldname: from, _folder_newname: newname},
+          this.set_busy(true, 'foldermoving'));
       }
     }
-
-    this.drag_active = false;
-    this.unfocus_subscription(this.get_folder_row_id(this.env.dstfolder));
   };
 
   // tell server to create and subscribe a new mailbox
@@ -6023,112 +5825,174 @@
   // delete a specific mailbox with all its messages
   this.delete_folder = function(name)
   {
-    var id = this.get_folder_row_id(name ? name : this.env.mailbox),
-      folder = this.env.subscriptionrows[id][0];
+    if (!name)
+      name = this.env.mailbox;
 
-    if (folder && confirm(this.get_label('deletefolderconfirm'))) {
-      var lock = this.set_busy(true, 'folderdeleting');
-      this.http_post('delete-folder', {_mbox: folder}, lock);
+    if (name && confirm(this.get_label('deletefolderconfirm'))) {
+      this.http_post('delete-folder', {_mbox: name}, this.set_busy(true, 'folderdeleting'));
     }
   };
 
   // Add folder row to the table and initialize it
-  this.add_folder_row = function (name, display_name, is_protected, subscribed, skip_init, class_name)
+  this.add_folder_row = function (id, name, display_name, is_protected, subscribed, class_name, refrow, subfolders)
   {
     if (!this.gui_objects.subscriptionlist)
       return false;
 
-    var row, n, i, tmp, tmp_name, rowid, folders = [], list = [], slist = [],
-      tbody = this.gui_objects.subscriptionlist.tBodies[0],
-      refrow = $('tr', tbody).get(1),
-      id = 'rcmrow'+((new Date).getTime());
+    // reset searching
+    if (this.subscription_list.is_search()) {
+      this.subscription_select();
+      this.subscription_list.reset_search();
+    }
 
-    if (!refrow) {
+    // disable drag-n-drop temporarily
+    this.subscription_list.draggable('destroy').droppable('destroy');
+
+    var row, n, tmp, tmp_name, rowid, collator, pos, p, parent = '',
+      folders = [], list = [], slist = [],
+      list_element = $(this.gui_objects.subscriptionlist);
+      row = refrow ? refrow : $($('li', list_element).get(1)).clone(true);
+
+    if (!row.length) {
       // Refresh page if we don't have a table row to clone
       this.goto_url('folders');
       return false;
     }
 
-    // clone a table row if there are existing rows
-    row = $(refrow).clone(true);
-
     // set ID, reset css class
-    row.attr({id: id, 'class': class_name});
+    row.attr({id: 'rcmli' + this.html_identifier_encode(id), 'class': class_name});
+
+    if (!refrow || !refrow.length) {
+      // remove old data, subfolders and toggle
+      $('ul,div.treetoggle', row).remove();
+      row.removeData('filtered');
+    }
 
     // set folder name
-    row.find('td:first').html(display_name);
+    $('a:first', row).text(display_name);
 
     // update subscription checkbox
-    $('input[name="_subscribed[]"]', row).val(name)
+    $('input[name="_subscribed[]"]:first', row).val(id)
       .prop({checked: subscribed ? true : false, disabled: is_protected ? true : false});
 
     // add to folder/row-ID map
     this.env.subscriptionrows[id] = [name, display_name, false];
 
-    // sort folders (to find a place where to insert the row)
-    // replace delimiter with \0 character to fix sorting
-    // issue where 'Abc Abc' would be placed before 'Abc/def'
-    var replace_from = RegExp(RegExp.escape(this.env.delimiter), 'g'),
-      replace_to = String.fromCharCode(0);
+    // copy folders data to an array for sorting
+    $.each(this.env.subscriptionrows, function(k, v) { v[3] = k; folders.push(v); });
 
-    $.each(this.env.subscriptionrows, function(k,v) {
-      if (v.length < 4) {
-        var n = v[0];
-        n = n.replace(replace_from, replace_to);
-        v.push(n);
-      }
-      folders.push(v);
-    });
+    try {
+      // use collator if supported (FF29, IE11, Opera15, Chrome24)
+      collator = new Intl.Collator(this.env.locale.replace('_', '-'));
+    }
+    catch (e) {};
 
+    // sort folders
     folders.sort(function(a, b) {
-      var len = a.length - 1; n1 = a[len], n2 = b[len];
-      return n1 < n2 ? -1 : 1;
+      var i, f1, f2,
+        path1 = a[0].split(ref.env.delimiter),
+        path2 = b[0].split(ref.env.delimiter),
+        len = path1.length;
+
+      for (i=0; i<len; i++) {
+        f1 = path1[i];
+        f2 = path2[i];
+
+        if (f1 !== f2) {
+          if (f2 === undefined)
+            return 1;
+          if (collator)
+            return collator.compare(f1, f2);
+          else
+            return f1 < f2 ? -1 : 1;
+        }
+        else if (i == len-1) {
+          return -1
+        }
+      }
     });
 
     for (n in folders) {
+      p = folders[n][3];
       // protected folder
       if (folders[n][2]) {
-        tmp_name = folders[n][0] + this.env.delimiter;
+        tmp_name = p + this.env.delimiter;
         // prefix namespace cannot have subfolders (#1488349)
         if (tmp_name == this.env.prefix_ns)
           continue;
-        slist.push(folders[n][0]);
+        slist.push(p);
         tmp = tmp_name;
       }
       // protected folder's child
-      else if (tmp && folders[n][0].startsWith(tmp))
-        slist.push(folders[n][0]);
+      else if (tmp && p.startsWith(tmp))
+        slist.push(p);
       // other
       else {
-        list.push(folders[n][0]);
+        list.push(p);
         tmp = null;
       }
     }
 
     // check if subfolder of a protected folder
     for (n=0; n<slist.length; n++) {
-      if (name.startsWith(slist[n] + this.env.delimiter))
-        rowid = this.get_folder_row_id(slist[n]);
+      if (id.startsWith(slist[n] + this.env.delimiter))
+        rowid = slist[n];
     }
 
     // find folder position after sorting
     for (n=0; !rowid && n<list.length; n++) {
-      if (n && list[n] == name)
-        rowid = this.get_folder_row_id(list[n-1]);
+      if (n && list[n] == id)
+        rowid = list[n-1];
     }
 
     // add row to the table
-    if (rowid)
-      $('#'+rowid).after(row);
-    else
-      row.appendTo(tbody);
+    if (rowid && (n = this.subscription_list.get_item(rowid, true))) {
+      // find parent folder
+      if (pos = id.lastIndexOf(this.env.delimiter)) {
+        parent = id.substring(0, pos);
+        parent = this.subscription_list.get_item(parent, true);
+
+        // add required tree elements to the parent if not already there
+        if (!$('div.treetoggle', parent).length) {
+          $('<div>&nbsp;</div>').addClass('treetoggle collapsed').appendTo(parent);
+        }
+        if (!$('ul', parent).length) {
+          $('<ul>').css('display', 'none').appendTo(parent);
+        }
+      }
+
+      if (parent && n == parent) {
+        $('ul:first', parent).append(row);
+      }
+      else {
+        while (p = $(n).parent().parent().get(0)) {
+          if (parent && p == parent)
+            break;
+          if (!$(p).is('li.mailbox'))
+            break;
+          n = p;
+        }
+
+        $(n).after(row);
+      }
+    }
+    else {
+      list_element.append(row);
+    }
+
+    // add subfolders
+    $.extend(this.env.subscriptionrows, subfolders || {});
 
     // update list widget
-    this.subscription_list.clear_selection();
-    if (!skip_init)
-      this.init_subscription_list();
+    this.subscription_list.reset(true);
+    this.subscription_select();
 
-    row = row.get(0);
+    // expand parent
+    if (parent) {
+      this.subscription_list.expand(this.folder_id2name(parent.id));
+    }
+
+    row = row.show().get(0);
     if (row.scrollIntoView)
       row.scrollIntoView();
 
@@ -6136,115 +6000,86 @@
   };
 
   // replace an existing table row with a new folder line (with subfolders)
-  this.replace_folder_row = function(oldfolder, newfolder, display_name, is_protected, class_name)
+  this.replace_folder_row = function(oldid, id, name, display_name, is_protected, class_name)
   {
     if (!this.gui_objects.subscriptionlist) {
-      if (this.is_framed)
-        return parent.rcmail.replace_folder_row(oldfolder, newfolder, display_name, is_protected, class_name);
+      if (this.is_framed()) {
+        // @FIXME: for some reason this 'parent' variable need to be prefixed with 'window.'
+        return window.parent.rcmail.replace_folder_row(oldid, id, name, display_name, is_protected, class_name);
+      }
+
       return false;
     }
 
-    var i, n, len, name, dispname, oldrow, tmprow, row, level,
-      tbody = this.gui_objects.subscriptionlist.tBodies[0],
-      folders = this.env.subscriptionrows,
-      id = this.get_folder_row_id(oldfolder),
-      prefix_len = oldfolder.length,
-      subscribed = $('input[name="_subscribed[]"]', $('#'+id)).prop('checked'),
-      // find subfolders of renamed folder
-      list = this.get_subfolders(oldfolder);
+    // reset searching
+    if (this.subscription_list.is_search()) {
+      this.subscription_select();
+      this.subscription_list.reset_search();
+    }
+
+    var subfolders = {},
+      row = this.subscription_list.get_item(oldid, true),
+      parent = $(row).parent(),
+      old_folder = this.env.subscriptionrows[oldid],
+      prefix_len_id = oldid.length,
+      prefix_len_name = old_folder[0].length,
+      subscribed = $('input[name="_subscribed[]"]:first', row).prop('checked');
 
     // no renaming, only update class_name
-    if (oldfolder == newfolder) {
-      $('#'+id).attr('class', class_name || '');
-      this.subscription_list.focus();
+    if (oldid == id) {
+      $(row).attr('class', class_name || '');
       return;
     }
 
-    // replace an existing table row
-    this._remove_folder_row(id);
-    row = $(this.add_folder_row(newfolder, display_name, is_protected, subscribed, true, class_name));
+    // update subfolders
+    $('li', row).each(function() {
+      var fname = ref.folder_id2name(this.id),
+        folder = ref.env.subscriptionrows[fname],
+        newid = id + fname.slice(prefix_len_id);
 
-    // detect tree depth change
-    if (len = list.length) {
-      level = (oldfolder.split(this.env.delimiter)).length - (newfolder.split(this.env.delimiter)).length;
+      this.id = 'rcmli' + ref.html_identifier_encode(newid);
+      $('input[name="_subscribed[]"]:first', this).val(newid);
+      folder[0] = name + folder[0].slice(prefix_len_name);
+
+      subfolders[newid] = folder;
+      delete ref.env.subscriptionrows[fname];
+    });
+
+    // get row off the list
+    row = $(row).detach();
+
+    delete this.env.subscriptionrows[oldid];
+
+    // remove parent list/toggle elements if not needed
+    if (parent.get(0) != this.gui_objects.subscriptionlist && !$('li', parent).length) {
+      $('ul,div.treetoggle', parent.parent()).remove();
     }
 
-    // move subfolders to the new branch
-    for (n=0; n<len; n++) {
-      id = list[n];
-      name = this.env.subscriptionrows[id][0];
-      dispname = this.env.subscriptionrows[id][1];
-      oldrow = $('#'+id);
-      tmprow = oldrow.clone(true);
-      oldrow.remove();
-      row.after(tmprow);
-      row = tmprow;
-      // update folder index
-      name = newfolder + name.slice(prefix_len);
-      $('input[name="_subscribed[]"]', row).val(name);
-      this.env.subscriptionrows[id][0] = name;
-      // update the name if level is changed
-      if (level != 0) {
-        if (level > 0) {
-          for (i=level; i>0; i--)
-            dispname = dispname.replace(/^&nbsp;&nbsp;&nbsp;&nbsp;/, '');
-        }
-        else {
-          for (i=level; i<0; i++)
-            dispname = '&nbsp;&nbsp;&nbsp;&nbsp;' + dispname;
-        }
-        row.find('td:first').html(dispname);
-        this.env.subscriptionrows[id][1] = dispname;
-      }
-    }
-
-    // update list widget
-    this.init_subscription_list();
+    // move the existing table row
+    this.add_folder_row(id, name, display_name, is_protected, subscribed, class_name, row, subfolders);
   };
 
   // remove the table row of a specific mailbox from the table
-  this.remove_folder_row = function(folder, subs)
+  this.remove_folder_row = function(folder)
   {
-    var n, len, list = [], id = this.get_folder_row_id(folder);
-
-    // get subfolders if any
-    if (subs)
-      list = this.get_subfolders(folder);
-
-    // remove old row
-    this._remove_folder_row(id);
-
-    // remove subfolders
-    for (n=0, len=list.length; n<len; n++)
-      this._remove_folder_row(list[n]);
-  };
-
-  this._remove_folder_row = function(id)
-  {
-    this.subscription_list.remove_row(id.replace(/^rcmrow/, ''));
-    $('#'+id).remove();
-    delete this.env.subscriptionrows[id];
-  }
-
-  this.get_subfolders = function(folder)
-  {
-    var name, list = [],
-      prefix = folder + this.env.delimiter,
-      row = $('#'+this.get_folder_row_id(folder)).get(0);
-
-    while (row = row.nextSibling) {
-      if (row.id) {
-        name = this.env.subscriptionrows[row.id][0];
-        if (name && name.startsWith(prefix)) {
-          list.push(row.id);
-        }
-        else
-          break;
-      }
+    // reset searching
+    if (this.subscription_list.is_search()) {
+      this.subscription_select();
+      this.subscription_list.reset_search();
     }
 
-    return list;
-  }
+    var list = [], row = this.subscription_list.get_item(folder, true);
+
+    // get subfolders if any
+    $('li', row).each(function() { list.push(ref.folder_id2name(this.id)); });
+
+    // remove folder row (and subfolders)
+    this.subscription_list.remove(folder);
+
+    // update local list variable
+    list.push(folder);
+    $.each(list, function(i, v) { delete ref.env.subscriptionrows[v]; });
+  };
 
   this.subscribe = function(folder)
   {
@@ -6260,17 +6095,6 @@
       var lock = this.display_message(this.get_label('folderunsubscribing'), 'loading');
       this.http_post('unsubscribe', {_mbox: folder}, lock);
     }
-  };
-
-  // helper method to find a specific mailbox row ID
-  this.get_folder_row_id = function(folder)
-  {
-    var id, folders = this.env.subscriptionrows;
-    for (id in folders)
-      if (folders[id] && folders[id][0] == folder)
-        break;
-
-    return id;
   };
 
   // when user select a folder in manager
@@ -6296,9 +6120,9 @@
   // disables subscription checkbox (for protected folder)
   this.disable_subscription = function(folder)
   {
-    var id = this.get_folder_row_id(folder);
-    if (id)
-      $('input[name="_subscribed[]"]', $('#'+id)).prop('disabled', true);
+    var row = this.subscription_list.get_item(folder, true);
+    if (row)
+      $('input[name="_subscribed[]"]:first', row).prop('disabled', true);
   };
 
   this.folder_size = function(folder)
@@ -6312,6 +6136,37 @@
     $('#folder-size').replaceWith(size);
   };
 
+  // filter folders by namespace
+  this.folder_filter = function(prefix)
+  {
+    this.subscription_list.reset_search();
+
+    this.subscription_list.container.children('li').each(function() {
+      var i, folder = ref.folder_id2name(this.id);
+      // show all folders
+      if (prefix == '---') {
+      }
+      // got namespace prefix
+      else if (prefix) {
+        if (folder !== prefix) {
+          $(this).data('filtered', true).hide();
+          return
+        }
+      }
+      // no namespace prefix, filter out all other namespaces
+      else {
+        // first get all namespace roots
+        for (i in ref.env.ns_roots) {
+          if (folder === ref.env.ns_roots[i]) {
+            $(this).data('filtered', true).hide();
+            return;
+          }
+        }
+      }
+
+      $(this).removeData('filtered').show();
+    });
+  };
 
   /*********************************************************/
   /*********           GUI functionality           *********/
@@ -6332,14 +6187,14 @@
     elm._command = cmd;
     elm._id = prop.id;
     if (prop.sel) {
-      elm.onmousedown = function(e){ return rcmail.button_sel(this._command, this._id); };
-      elm.onmouseup = function(e){ return rcmail.button_out(this._command, this._id); };
+      elm.onmousedown = function(e) { return ref.button_sel(this._command, this._id); };
+      elm.onmouseup = function(e) { return ref.button_out(this._command, this._id); };
       if (preload)
         new Image().src = prop.sel;
     }
     if (prop.over) {
-      elm.onmouseover = function(e){ return rcmail.button_over(this._command, this._id); };
-      elm.onmouseout = function(e){ return rcmail.button_out(this._command, this._id); };
+      elm.onmouseover = function(e) { return ref.button_over(this._command, this._id); };
+      elm.onmouseout = function(e) { return ref.button_out(this._command, this._id); };
       if (preload)
         new Image().src = prop.over;
     }
@@ -6368,7 +6223,7 @@
       button = a_buttons[n];
       obj = document.getElementById(button.id);
 
-      if (!obj || button.status == state)
+      if (!obj || button.status === state)
         continue;
 
       // get default/passive setting of the button
@@ -6381,19 +6236,18 @@
       else if (!button.status)
         button.pas = String(obj.className);
 
+      button.status = state;
+
       // set image according to button state
       if (button.type == 'image' && button[state]) {
-        button.status = state;
         obj.src = button[state];
       }
       // set class name according to button state
       else if (button[state] !== undefined) {
-        button.status = state;
         obj.className = button[state];
       }
       // disable/enable input buttons
       if (button.type == 'input') {
-        button.status = state;
         obj.disabled = state == 'pas';
       }
       else if (button.type == 'uibutton') {
@@ -6616,22 +6470,27 @@
   };
 
   // open a jquery UI dialog with the given content
-  this.show_popup_dialog = function(html, title, buttons, options)
+  this.show_popup_dialog = function(content, title, buttons, options)
   {
     // forward call to parent window
     if (this.is_framed()) {
-      return parent.rcmail.show_popup_dialog(html, title, buttons, options);
+      return parent.rcmail.show_popup_dialog(content, title, buttons, options);
     }
 
-    var popup = $('<div class="popup">')
-      .html(html)
-      .dialog($.extend({
+    var popup = $('<div class="popup">');
+
+    if (typeof content == 'object')
+      popup.append(content);
+    else
+      popup.html(content);
+
+    popup.dialog($.extend({
         title: title,
         buttons: buttons,
         modal: true,
         resizable: true,
         width: 500,
-        close: function(event, ui) { $(this).remove() }
+        close: function(event, ui) { $(this).remove(); }
       }, options || {}));
 
     // resize and center popup
@@ -6656,6 +6515,10 @@
   // mark a mailbox as selected and set environment variable
   this.select_folder = function(name, prefix, encode)
   {
+    if (this.savedsearchlist) {
+      this.savedsearchlist.select('');
+    }
+
     if (this.treelist) {
       this.treelist.select(name);
     }
@@ -6711,7 +6574,7 @@
         tr = document.createElement('tr');
 
         for (c=0, len=repl.length; c < len; c++) {
-          cell = document.createElement('td');
+          cell = document.createElement('th');
           cell.innerHTML = repl[c].html || '';
           if (repl[c].id) cell.id = repl[c].id;
           if (repl[c].className) cell.className = repl[c].className;
@@ -6873,7 +6736,7 @@
 
     $(elem).removeClass('show-headers').addClass('hide-headers');
     $(this.gui_objects.all_headers_row).show();
-    elem.onclick = function() { rcmail.command('hide-headers', '', elem); };
+    elem.onclick = function() { ref.command('hide-headers', '', elem); };
 
     // fetch headers only once
     if (!this.gui_objects.all_headers_box.innerHTML) {
@@ -6891,7 +6754,7 @@
 
     $(elem).removeClass('hide-headers').addClass('show-headers');
     $(this.gui_objects.all_headers_row).hide();
-    elem.onclick = function() { rcmail.command('show-headers', '', elem); };
+    elem.onclick = function() { ref.command('show-headers', '', elem); };
   };
 
   // create folder selector popup, position and display it
@@ -6953,13 +6816,7 @@
         container.data('callback')($(this).data('id'));
         return false;
       });
-/*
-      // hide selector on click out of selector element
-      var fn = function(e) { if (e.target != container.get(0)) container.hide(); };
-      $(document.body).on('mouseup', fn);
-      $('iframe').contents().on('mouseup', fn)
-        .load(function(e) { try { $(this).contents().on('mouseup', fn); } catch(e) {}; });
-*/
+
       this.folder_selector_element = container;
     }
 
@@ -7136,32 +6993,61 @@
     element.css({left: left + 'px', top: top + 'px'});
   };
 
+  // initialize HTML editor
+  this.editor_init = function(config, id)
+  {
+    this.editor = new rcube_text_editor(config, id);
+  };
+
 
   /********************************************************/
   /*********  html to text conversion functions   *********/
   /********************************************************/
 
-  this.html2plain = function(htmlText, id)
+  this.html2plain = function(html, func)
   {
-    var url = '?_task=utils&_action=html2text',
+    return this.format_converter(html, 'html', func);
+  };
+
+  this.plain2html = function(plain, func)
+  {
+    return this.format_converter(plain, 'plain', func);
+  };
+
+  this.format_converter = function(text, format, func)
+  {
+    // warn the user (if converted content is not empty)
+    if (!text
+      || (format == 'html' && !(text.replace(/<[^>]+>|&nbsp;|\xC2\xA0|\s/g, '')).length)
+      || (format != 'html' && !(text.replace(/\xC2\xA0|\s/g, '')).length)
+    ) {
+      // without setTimeout() here, textarea is filled with initial (onload) content
+      if (func)
+        setTimeout(function() { func(''); }, 50);
+      return true;
+    }
+
+    var confirmed = this.env.editor_warned || confirm(this.get_label('editorwarning'));
+
+    this.env.editor_warned = true;
+
+    if (!confirmed)
+      return false;
+
+    var url = '?_task=utils&_action=' + (format == 'html' ? 'html2text' : 'text2html'),
       lock = this.set_busy(true, 'converting');
 
     this.log('HTTP POST: ' + url);
 
-    $.ajax({ type: 'POST', url: url, data: htmlText, contentType: 'application/octet-stream',
+    $.ajax({ type: 'POST', url: url, data: text, contentType: 'application/octet-stream',
       error: function(o, status, err) { ref.http_error(o, status, err, lock); },
-      success: function(data) { ref.set_busy(false, null, lock); $('#'+id).val(data); ref.log(data); }
+      success: function(data) {
+        ref.set_busy(false, null, lock);
+        if (func) func(data);
+      }
     });
-  };
 
-  this.plain2html = function(plain, id)
-  {
-    var lock = this.set_busy(true, 'converting');
-
-    plain = plain.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
-    $('#'+id).val(plain ? '<pre>'+plain+'</pre>' : '');
-
-    this.set_busy(false, null, lock);
+    return true;
   };
 
 
@@ -7432,13 +7318,26 @@
           this.enable_command('purge', this.purge_mailbox_test() && !is_multifolder);
           this.enable_command('import-messages', !is_multifolder);
           this.enable_command('expand-all', 'expand-unread', 'collapse-all', this.env.threading && this.env.messagecount && !is_multifolder);
-          this.enable_command('set-listmode', this.env.threads && !is_multifolder);
 
           if ((response.action == 'list' || response.action == 'search') && this.message_list) {
-            if (this.message_list.rowcount > 0)
-              this.message_list.focus();
-            this.msglist_select(this.message_list);
-            this.triggerEvent('listupdate', { folder:this.env.mailbox, rowcount:this.message_list.rowcount });
+            var list = this.message_list, uid = this.env.list_uid;
+
+            // highlight message row when we're back from message page
+            if (uid) {
+              if (!list.rows[uid])
+                uid += '-' + this.env.mailbox;
+              if (list.rows[uid]) {
+                list.select(uid);
+              }
+              delete this.env.list_uid;
+            }
+
+            this.enable_command('set-listmode', this.env.threads && !is_multifolder);
+            if (list.rowcount > 0)
+              list.focus();
+            this.msglist_select(list);
+            this.triggerEvent('listupdate', { folder:this.env.mailbox, rowcount:list.rowcount });
+
           }
         }
         else if (this.task == 'addressbook') {
@@ -7517,9 +7416,10 @@
     // save message in local storage and do not redirect
     if (this.env.action == 'compose') {
       this.save_compose_form_local();
+      this.compose_skip_unsavedcheck = true;
     }
     else if (redirect_url) {
-      window.setTimeout(function(){ ref.redirect(redirect_url, true); }, 2000);
+      setTimeout(function(){ ref.redirect(redirect_url, true); }, 2000);
     }
   };
 
@@ -7578,12 +7478,12 @@
   // helper method to send an HTTP request with the given iterator value
   this.multi_thread_send_request = function(prop, item)
   {
-    var postdata, query;
+    var k, postdata, query;
 
     // replace %s in post data
     if (prop.postdata) {
       postdata = {};
-      for (var k in prop.postdata) {
+      for (k in prop.postdata) {
         postdata[k] = String(prop.postdata[k]).replace('%s', item);
       }
       postdata._reqid = prop.reqid;
@@ -7595,7 +7495,7 @@
     }
     else if (typeof prop.query == 'object' && prop.query) {
       query = {};
-      for (var k in prop.query) {
+      for (k in prop.query) {
         query[k] = String(prop.query[k]).replace('%s', item);
       }
       query._reqid = prop.reqid;
@@ -7659,8 +7559,10 @@
   // post the given form to a hidden iframe
   this.async_upload_form = function(form, action, onload)
   {
-    var frame, ts = new Date().getTime(),
-      frame_name = 'rcmupload'+ts;
+    // create hidden iframe
+    var ts = new Date().getTime(),
+      frame_name = 'rcmupload' + ts,
+      frame = this.async_upload_form_frame(frame_name);
 
     // upload progress support
     if (this.env.upload_progress_name) {
@@ -7675,26 +7577,12 @@
       field.val(ts);
     }
 
-    // have to do it this way for IE
-    // otherwise the form will be posted to a new window
-    if (document.all) {
-      document.body.insertAdjacentHTML('BeforeEnd', '<iframe name="'+frame_name+'"'
-        + ' src="program/resources/blank.gif" style="width:0;height:0;visibility:hidden;"></iframe>');
-      frame = $('iframe[name="'+frame_name+'"]');
-    }
-    // for standards-compliant browsers
-    else {
-      frame = $('<iframe>').attr('name', frame_name)
-        .css({border: 'none', width: 0, height: 0, visibility: 'hidden'})
-        .appendTo(document.body);
-    }
-
-    // handle upload errors, parsing iframe content in onload
+    // handle upload errors by parsing iframe content in onload
     frame.bind('load', {ts:ts}, onload);
 
     $(form).attr({
         target: frame_name,
-        action: this.url(action, { _id:this.env.compose_id||'', _uploadid:ts }),
+        action: this.url(action, {_id: this.env.compose_id || '', _uploadid: ts, _from: this.env.action}),
         method: 'POST'})
       .attr(form.encoding ? 'encoding' : 'enctype', 'multipart/form-data')
       .submit();
@@ -7702,18 +7590,25 @@
     return frame_name;
   };
 
+  // create iframe element for files upload
+  this.async_upload_form_frame = function(name)
+  {
+    return $('<iframe>').attr({name: name, style: 'border: none; width: 0; height: 0; visibility: hidden'})
+      .appendTo(document.body);
+  };
+
   // html5 file-drop API
   this.document_drag_hover = function(e, over)
   {
     e.preventDefault();
-    $(ref.gui_objects.filedrop)[(over?'addClass':'removeClass')]('active');
+    $(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('active');
   };
 
   this.file_drag_hover = function(e, over)
   {
     e.preventDefault();
     e.stopPropagation();
-    $(ref.gui_objects.filedrop)[(over?'addClass':'removeClass')]('hover');
+    $(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('hover');
   };
 
   // handler when files are dropped to a designated area.
@@ -7750,7 +7645,7 @@
       $.ajax({
         type: 'POST',
         dataType: 'json',
-        url: ref.url(ref.env.filedrop.action||'upload', { _id:ref.env.compose_id||ref.env.cid||'', _uploadid:ts, _remote:1 }),
+        url: ref.url(ref.env.filedrop.action || 'upload', {_id: ref.env.compose_id||ref.env.cid||'', _uploadid: ts, _remote: 1, _from: ref.env.action}),
         contentType: formdata ? false : 'multipart/form-data; boundary=' + boundary,
         processData: false,
         timeout: 0, // disable default timeout set in ajaxSetup()
@@ -7938,7 +7833,7 @@
   {
     var msg = this.env.messages ? this.env.messages[uid] : {};
     return msg.mbox || this.env.mailbox;
-  }
+  };
 
   // gets cursor position
   this.get_caret_pos = function(obj)
@@ -7946,89 +7841,31 @@
     if (obj.selectionEnd !== undefined)
       return obj.selectionEnd;
 
-    if (document.selection && document.selection.createRange) {
-      var range = document.selection.createRange();
-      if (range.parentElement() != obj)
-        return 0;
-
-      var gm = range.duplicate();
-      if (obj.tagName == 'TEXTAREA')
-        gm.moveToElementText(obj);
-      else
-        gm.expand('textedit');
-
-      gm.setEndPoint('EndToStart', range);
-      var p = gm.text.length;
-
-      return p <= obj.value.length ? p : -1;
-    }
-
     return obj.value.length;
   };
 
   // moves cursor to specified position
   this.set_caret_pos = function(obj, pos)
   {
-    if (obj.setSelectionRange)
-      obj.setSelectionRange(pos, pos);
-    else if (obj.createTextRange) {
-      var range = obj.createTextRange();
-      range.collapse(true);
-      range.moveEnd('character', pos);
-      range.moveStart('character', pos);
-      range.select();
+    try {
+      if (obj.setSelectionRange)
+        obj.setSelectionRange(pos, pos);
     }
+    catch(e) {} // catch Firefox exception if obj is hidden
   };
 
   // get selected text from an input field
-  // http://stackoverflow.com/questions/7186586/how-to-get-the-selected-text-in-textarea-using-jquery-in-internet-explorer-7
   this.get_input_selection = function(obj)
   {
-    var start = 0, end = 0,
-      normalizedValue, range,
-      textInputRange, len, endRange;
+    var start = 0, end = 0, normalizedValue = '';
 
     if (typeof obj.selectionStart == "number" && typeof obj.selectionEnd == "number") {
       normalizedValue = obj.value;
       start = obj.selectionStart;
       end = obj.selectionEnd;
     }
-    else {
-      range = document.selection.createRange();
 
-      if (range && range.parentElement() == obj) {
-        len = obj.value.length;
-        normalizedValue = obj.value; //.replace(/\r\n/g, "\n");
-
-        // create a working TextRange that lives only in the input
-        textInputRange = obj.createTextRange();
-        textInputRange.moveToBookmark(range.getBookmark());
-
-        // Check if the start and end of the selection are at the very end
-        // of the input, since moveStart/moveEnd doesn't return what we want
-        // in those cases
-        endRange = obj.createTextRange();
-        endRange.collapse(false);
-
-        if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
-          start = end = len;
-        }
-        else {
-          start = -textInputRange.moveStart("character", -len);
-          start += normalizedValue.slice(0, start).split("\n").length - 1;
-
-          if (textInputRange.compareEndPoints("EndToEnd", endRange) > -1) {
-            end = len;
-          }
-          else {
-            end = -textInputRange.moveEnd("character", -len);
-            end += normalizedValue.slice(0, end).split("\n").length - 1;
-          }
-        }
-      }
-    }
-
-    return { start:start, end:end, text:normalizedValue.substr(start, end-start) };
+    return {start: start, end: end, text: normalizedValue.substr(start, end-start)};
   };
 
   // disable/enable all fields of a form
@@ -8050,9 +7887,7 @@
       // remember which elem was disabled before lock
       if (lock && elm.disabled)
         this.disabled_form_elements.push(elm);
-      // check this.disabled_form_elements before inArray() as a workaround for FF5 bug
-      // http://bugs.jquery.com/ticket/9873
-      else if (lock || (this.disabled_form_elements && $.inArray(elm, this.disabled_form_elements)<0))
+      else if (lock || $.inArray(elm, this.disabled_form_elements) < 0)
         elm.disabled = lock;
     }
   };
@@ -8069,25 +7904,23 @@
     }
     catch(e) {
       this.display_message(String(e), 'error');
-    };
+    }
   };
 
   this.check_protocol_handler = function(name, elem)
   {
     var nav = window.navigator;
+
     if (!nav || (typeof nav.registerProtocolHandler != 'function')) {
       $(elem).addClass('disabled').click(function(){ return false; });
     }
+    else if (typeof nav.isProtocolHandlerRegistered == 'function') {
+      var status = nav.isProtocolHandlerRegistered('mailto', this.mailto_handler_uri());
+      if (status)
+        $(elem).parent().find('.mailtoprotohandler-status').html(status);
+    }
     else {
-      var status = null;
-      if (typeof nav.isProtocolHandlerRegistered == 'function') {
-        status = nav.isProtocolHandlerRegistered('mailto', this.mailto_handler_uri());
-        if (status)
-          $(elem).parent().find('.mailtoprotohandler-status').html(status);
-      }
-      else {
-        $(elem).click(function() { rcmail.register_protocol_handler(name); return false; });
-      }
+      $(elem).click(function() { ref.register_protocol_handler(name); return false; });
     }
   };
 
@@ -8125,8 +7958,8 @@
   {
     var img = new Image();
 
-    img.onload = function() { rcmail.env.browser_capabilities.tif = 1; };
-    img.onerror = function() { rcmail.env.browser_capabilities.tif = 0; };
+    img.onload = function() { ref.env.browser_capabilities.tif = 1; };
+    img.onerror = function() { ref.env.browser_capabilities.tif = 0; };
     img.src = 'program/resources/blank.tif';
   };
 
@@ -8142,12 +7975,12 @@
 
     if (window.ActiveXObject) {
       try {
-        if (axObj = new ActiveXObject("AcroPDF.PDF"))
+        if (plugin = new ActiveXObject("AcroPDF.PDF"))
           return 1;
       }
       catch (e) {}
       try {
-        if (axObj = new ActiveXObject("PDF.PdfCtrl"))
+        if (plugin = new ActiveXObject("PDF.PdfCtrl"))
           return 1;
       }
       catch (e) {}
@@ -8175,7 +8008,7 @@
 
     if (window.ActiveXObject) {
       try {
-        if (axObj = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
+        if (plugin = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
           return 1;
       }
       catch (e) {}
@@ -8201,24 +8034,44 @@
   // wrapper for localStorage.getItem(key)
   this.local_storage_get_item = function(key, deflt, encrypted)
   {
+    var item;
+
     // TODO: add encryption
-    var item = localStorage.getItem(this.get_local_storage_prefix() + key);
+    try {
+      item = localStorage.getItem(this.get_local_storage_prefix() + key);
+    }
+    catch (e) { }
+
     return item !== null ? JSON.parse(item) : (deflt || null);
   };
 
   // wrapper for localStorage.setItem(key, data)
   this.local_storage_set_item = function(key, data, encrypted)
   {
-    // TODO: add encryption
-    return localStorage.setItem(this.get_local_storage_prefix() + key, JSON.stringify(data));
+    // try/catch to handle no localStorage support, but also error
+    // in Safari-in-private-browsing-mode where localStorage exists
+    // but can't be used (#1489996)
+    try {
+      // TODO: add encryption
+      localStorage.setItem(this.get_local_storage_prefix() + key, JSON.stringify(data));
+      return true;
+    }
+    catch (e) {
+      return false;
+    }
   };
 
   // wrapper for localStorage.removeItem(key)
   this.local_storage_remove_item = function(key)
   {
-    return localStorage.removeItem(this.get_local_storage_prefix() + key);
+    try {
+      localStorage.removeItem(this.get_local_storage_prefix() + key);
+      return true;
+    }
+    catch (e) {
+      return false;
+    }
   };
-
 }  // end object rcube_webmail
 
 

--
Gitblit v1.9.1