From d61d668b64c44fc046095b807834c4836a8c05c5 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 08 Apr 2015 02:57:21 -0400
Subject: [PATCH] Remove useless code

---
 program/js/app.js | 1309 ++++++++++++++++++++++++++++++++++++-----------------------
 1 files changed, 793 insertions(+), 516 deletions(-)

diff --git a/program/js/app.js b/program/js/app.js
index c635f60..1da2a81 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -58,7 +58,6 @@
     request_timeout: 180,  // seconds
     draft_autosave: 0,     // seconds
     comm_path: './',
-    blankpage: 'program/resources/blank.gif',
     recipients_separator: ',',
     recipients_delimiter: ', ',
     popup_width: 1150,
@@ -163,6 +162,9 @@
       return;
     }
 
+    if (!this.env.blankpage)
+      this.env.blankpage = this.assets_path('program/resources/blank.gif');
+
     // find all registered gui containers
     for (n in this.gui_containers)
       this.gui_containers[n] = $('#'+this.gui_containers[n]);
@@ -235,8 +237,6 @@
           $(this.message_list.thead).on('click', 'a.sortcol', function(e){
             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());
@@ -326,10 +326,7 @@
           this.enable_command('download', 'print', true);
         // show printing dialog
         else if (this.env.action == 'print' && this.env.uid) {
-          if (bw.safari)
-            setTimeout('window.print()', 10);
-          else
-            window.print();
+          this.print_dialog();
         }
 
         // get unread count for each mailbox
@@ -406,8 +403,6 @@
             .addEventListener('dragend', function(e) { ref.drag_end(e); })
             .init();
 
-          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();
@@ -441,6 +436,9 @@
           this.enable_command('save', true);
           if (this.env.action == 'add' || this.env.action == 'edit' || this.env.action == 'search')
               this.init_contact_form();
+        }
+        else if (this.env.action == 'print') {
+          this.print_dialog();
         }
 
         break;
@@ -544,7 +542,7 @@
     // 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'))
@@ -560,13 +558,14 @@
 
     // show message
     if (this.pending_message)
-      this.display_message(this.pending_message[0], this.pending_message[1], this.pending_message[2]);
+      this.display_message.apply(this, this.pending_message);
 
     // 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',
+          parent_focus: true,
           id_encode: this.html_identifier_encode,
           id_decode: this.html_identifier_decode,
           check_droptarget: function(node) { return !node.virtual && ref.check_droptarget(node.id) }
@@ -575,6 +574,7 @@
       this.treelist
         .addEventListener('collapse', function(node) { ref.folder_collapsed(node) })
         .addEventListener('expand', function(node) { ref.folder_collapsed(node) })
+        .addEventListener('beforeselect', function(node) { return !ref.busy; })
         .addEventListener('select', function(node) { ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' }) });
     }
 
@@ -633,8 +633,9 @@
     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)
-    if (this.busy && !(command == 'reset-search' && this.last_command == 'search'))
+    // do nothing if interface is locked by another command
+    // with exception for searching reset and menu
+    if (this.busy && !(command == 'reset-search' && this.last_command == 'search') && !command.match(/^menu-/))
       return false;
 
     // let the browser handle this click (shift/ctrl usually opens the link in a new window/tab)
@@ -653,8 +654,12 @@
 
     // check input before leaving compose step
     if (this.task == 'mail' && this.env.action == 'compose' && $.inArray(command, this.env.compose_commands) < 0 && !this.env.server_error) {
-      if (this.cmp_hash != this.compose_field_hash() && !confirm(this.get_label('notsentwarning')))
+      if (!this.env.is_sent && this.cmp_hash != this.compose_field_hash() && !confirm(this.get_label('notsentwarning')))
         return false;
+
+      // 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;
@@ -716,6 +721,7 @@
 
           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;
@@ -768,7 +774,7 @@
 
       case 'list':
         if (props && props != '') {
-          this.reset_qsearch();
+          this.reset_qsearch(true);
         }
         if (this.env.action == 'compose' && this.env.extwin) {
           window.close();
@@ -888,7 +894,7 @@
           else {
             // reload form
             if (props == 'reload') {
-              form.action += '?_reload=1';
+              form.action += '&_reload=1';
             }
             else if (this.task == 'settings' && (this.env.identities_level % 2) == 0  &&
               (input = $("input[name='_email']", form)) && input.length && !rcube_check_email(input.val())
@@ -1049,12 +1055,9 @@
         url = {};
 
         if (this.task == 'mail') {
-          url._mbox = this.env.mailbox;
+          url = {_mbox: this.env.mailbox, _search: this.env.search_request};
           if (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;
+            url._to = props;
         }
         // modify url if we're in addressbook
         else if (this.task == 'addressbook') {
@@ -1079,8 +1082,12 @@
             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;
@@ -1108,7 +1115,7 @@
         break;
 
       case 'send':
-        if (!props.nocheck && !this.check_compose_input(command))
+        if (!props.nocheck && !this.env.is_sent && !this.check_compose_input(command))
           break;
 
         // Reset the auto-save timer
@@ -1145,7 +1152,7 @@
       case 'reply-list':
       case 'reply':
         if (uid = this.get_single_uid()) {
-          url = {_reply_uid: uid, _mbox: this.get_message_mailbox(uid)};
+          url = {_reply_uid: uid, _mbox: this.get_message_mailbox(uid), _search: this.env.search_request};
           if (command == 'reply-all')
             // do reply-list, when list is detected and popup menu wasn't used
             url._all = (!props && this.env.reply_all_mode == 1 && this.commands['reply-list'] ? 'list' : 'all');
@@ -1169,7 +1176,15 @@
         break;
 
       case 'print':
-        if (this.env.action == 'get') {
+        if (this.task == 'addressbook') {
+          if (uid = this.contact_list.get_single_selection()) {
+            url = '&_action=print&_cid=' + uid;
+            if (this.env.source)
+              url += '&_source=' + urlencode(this.env.source);
+            this.open_window(this.env.comm_path + url, true, true);
+          }
+        }
+        else if (this.env.action == 'get') {
           this.gui_objects.messagepartframe.contentWindow.print();
         }
         else if (uid = this.get_single_uid()) {
@@ -1208,7 +1223,7 @@
       case 'reset-search':
         var n, s = this.env.search_request || this.env.qsearch;
 
-        this.reset_qsearch();
+        this.reset_qsearch(true);
         this.select_all_mode = false;
 
         if (s && this.env.action == 'compose') {
@@ -1399,8 +1414,10 @@
 
     if (task == 'mail')
       url += '&_mbox=INBOX';
-    else if (task == 'logout')
+    else if (task == 'logout' && !this.env.server_error) {
+      url += '&_token=' + this.env.request_token;
       this.clear_compose_data();
+    }
 
     this.redirect(url);
   };
@@ -1410,7 +1427,10 @@
     if (!url)
       url = this.env.comm_path;
 
-    return url.replace(/_task=[a-z0-9_-]+/i, '_task='+task);
+    if (url.match(/[?&]_task=[a-zA-Z0-9_-]+/))
+        return url.replace(/_task=[a-zA-Z0-9_-]+/, '_task=' + task);
+    else
+        return url.replace(/\?.*$/, '') + '?_task=' + task;
   };
 
   this.reload = function(delay)
@@ -1446,7 +1466,7 @@
 
   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)
@@ -1587,7 +1607,8 @@
 
   this.folder_collapsed = function(node)
   {
-    var prefname = this.env.task == 'addressbook' ? 'collapsed_abooks' : 'collapsed_folders';
+    var prefname = this.env.task == 'addressbook' ? 'collapsed_abooks' : 'collapsed_folders',
+      old = this.env[prefname];
 
     if (node.collapsed) {
       this.env[prefname] = this.env[prefname] + '&'+urlencode(node.id)+'&';
@@ -1603,7 +1624,8 @@
     }
 
     if (!this.drag_active) {
-      this.command('save-pref', { name: prefname, value: this.env[prefname] });
+      if (old !== this.env[prefname])
+        this.command('save-pref', { name: prefname, value: this.env[prefname] });
 
       if (this.env.unread_counts)
         this.set_unread_count_display(node.id, false);
@@ -1654,7 +1676,7 @@
         }
         skip = obj.data('parent');
       }
-    }, 10);
+    }, 10, e);
   };
 
   // global keypress event handler
@@ -1708,19 +1730,6 @@
 
     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)
   {
@@ -1954,7 +1963,7 @@
     // attach events
     $.each(fn, function(i, f) {
       row[i].onclick = function(e) { f(e); return rcube_event.cancel(e); };
-      if (bw.touch) {
+      if (bw.touch && row[i].addEventListener) {
         row[i].addEventListener('touchend', function(e) {
           if (e.changedTouches.length == 1) {
             f(e);
@@ -2034,7 +2043,7 @@
     }
     if (flags.forwarded) {
       status_class += ' forwarded';
-      status_label += this.get_label('replied') + ' ';
+      status_label += this.get_label('forwarded') + ' ';
     }
 
     // update selection
@@ -2258,7 +2267,7 @@
       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_unread_message(id, ref.env.mailbox);
-          ref.http_post('mark', {_uid: id, _flag: 'read', _quiet: 1});
+          ref.http_post('mark', {_uid: id, _flag: 'read', _mbox: ref.env.mailbox, _quiet: 1});
         }, this.env.preview_pane_mark_read * 1000);
       }
     }
@@ -2368,6 +2377,9 @@
   // list messages of a specific mailbox using filter
   this.filter_mailbox = function(filter)
   {
+    if (this.filter_disabled)
+      return;
+
     var lock = this.set_busy(true, 'searching');
 
     this.clear_message_list();
@@ -2401,16 +2413,17 @@
     if (sort)
       url._sort = sort;
 
-    // also send search request to get the right messages
-    if (this.env.search_request)
-      url._search = this.env.search_request;
-
-    // set page=1 if changeing to another mailbox
+    // folder change, reset page, search scope, etc.
     if (this.env.mailbox != mbox) {
       page = 1;
       this.env.current_page = page;
+      this.env.search_scope = 'base';
       this.select_all_mode = false;
+      this.reset_search_filter();
     }
+    // also send search request to get the right messages
+    else if (this.env.search_request)
+      url._search = this.env.search_request;
 
     if (!update_only) {
       // unselect selected messages and clear the list and message data
@@ -2484,12 +2497,22 @@
         selection.push(selected[i]);
 
     this.message_list.selection = selection;
+
+    // reset preview frame, if currently previewed message is not selected (has been removed)
+    try {
+      var win = this.get_frame_window(this.env.contentframe),
+        id = win.rcmail.env.uid;
+
+      if (id && $.inArray(id, selection) < 0)
+        this.show_contentframe(false);
+    }
+    catch (e) {};
   };
 
   // expand all threads with unread children
   this.expand_unread = function()
   {
-    var r, tbody = this.gui_objects.messagelist.tBodies[0],
+    var r, tbody = this.message_list.tbody,
       new_row = tbody.firstChild;
 
     while (new_row) {
@@ -3326,7 +3349,7 @@
     if (!this.gui_objects.messageform)
       return false;
 
-    var i, input_from = $("[name='_from']"),
+    var i, elem, pos, input_from = $("[name='_from']"),
       input_to = $("[name='_to']"),
       input_subject = $("input[name='_subject']"),
       input_message = $("[name='_message']").get(0),
@@ -3360,79 +3383,34 @@
     }
 
     if (!html_mode) {
-      this.set_caret_pos(input_message, this.env.top_posting ? 0 : $(input_message).val().length);
+      pos = this.env.top_posting ? 0 : input_message.value.length;
+      this.set_caret_pos(input_message, pos);
+
       // add signature according to selected identity
       // if we have HTML editor, signature is added in callback
       if (input_from.prop('type') == 'select-one') {
         this.change_identity(input_from[0]);
       }
-    }
 
-    // check for locally stored compose data
-    if (window.localStorage) {
-      var key, formdata, index = this.local_storage_get_item('compose.index', []);
-
-      for (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;
-        }
+      // scroll to the bottom of the textarea (#1490114)
+      if (pos) {
+        $(input_message).scrollTop(input_message.scrollHeight);
       }
     }
 
+    // check for locally stored compose data
+    if (this.env.save_localstorage)
+      this.compose_restore_dialog(0, html_mode)
+
     if (input_to.val() == '')
-      input_to.focus();
+      elem = input_to;
     else if (input_subject.val() == '')
-      input_subject.focus();
+      elem = input_subject;
     else if (input_message)
-      input_message.focus();
+      elem = input_message;
+
+    // focus first empty element (need to be visible on IE8)
+    $(elem).filter(':visible').focus();
 
     this.env.compose_focus_elem = document.activeElement;
 
@@ -3443,6 +3421,74 @@
     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'),
+            'class': 'mainaction',
+            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'),
+            'class': '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 + ' ';
@@ -3451,15 +3497,35 @@
       .attr({ 'autocomplete': 'off', 'aria-autocomplete': 'list', 'aria-expanded': 'false', 'role': 'combobox' });
   };
 
-  this.submit_messageform = function(draft)
+  this.submit_messageform = function(draft, saveonly)
   {
     var form = this.gui_objects.messageform;
 
     if (!form)
       return;
 
+    // the message has been sent but not saved, ask the user what to do
+    if (!saveonly && this.env.is_sent) {
+      return this.show_popup_dialog(this.get_label('messageissent'), '',
+        [{
+          text: this.get_label('save'),
+          'class': 'mainaction',
+          click: function() {
+            ref.submit_messageform(false, true);
+            $(this).dialog('close');
+          }
+        },
+        {
+          text: this.get_label('cancel'),
+          click: function() {
+            $(this).dialog('close');
+          }
+        }]
+      );
+    }
+
     // all checks passed, send message
-    var msgid = this.set_busy(true, draft ? 'savingmessage' : 'sendingmessage'),
+    var msgid = this.set_busy(true, draft || saveonly ? 'savingmessage' : 'sendingmessage'),
       lang = this.spellcheck_lang(),
       files = [];
 
@@ -3471,6 +3537,11 @@
     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);
+
+    if (saveonly) {
+      form.action = this.add_url(form.action, '_saveonly', 1);
+    }
 
     // register timer to notify about connection timeout
     this.submit_timer = setTimeout(function(){
@@ -3612,11 +3683,15 @@
   this.toggle_editor = function(props, obj, e)
   {
     // @todo: this should work also with many editors on page
-    var result = this.editor.toggle(props.html);
+    var result = this.editor.toggle(props.html, props.noconvert || false);
+
+    // satisfy the expectations of aftertoggle-editor event subscribers
+    props.mode = props.html ? 'html' : 'plain';
 
     if (!result && e) {
       // fix selector value if operation failed
-      $(e.target).filter('select').val(props.html ? 'plain' : 'html');
+      props.mode = props.html ? 'plain' : 'html';
+      $(e.target).filter('select').val(props.mode);
     }
 
     if (result) {
@@ -3643,7 +3718,7 @@
   this.save_response = function()
   {
     // show dialog to enter a name and to modify the text to be saved
-    var buttons = {}, text = this.editor.get_content(true, true),
+    var buttons = {}, text = this.editor.get_content({selection: true, format: 'text', nosig: 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>' +
@@ -3671,7 +3746,7 @@
       $(this).dialog('close');
     };
 
-    this.show_popup_dialog(html, this.gettext('newresponse'), buttons);
+    this.show_popup_dialog(html, this.gettext('newresponse'), buttons, {button_classes: ['mainaction']});
 
     $('#ffresponsetext').val(text);
     $('#ffresponsename').select();
@@ -3753,14 +3828,13 @@
 
   this.set_draft_id = function(id)
   {
-    var rc;
-
     if (id && id != this.env.draft_id) {
-      if (rc = this.opener()) {
-        // refresh the drafts folder in opener window
-        if (rc.env.task == 'mail' && rc.env.action == '' && rc.env.mailbox == this.env.drafts_mailbox)
-          rc.command('checkmail');
-      }
+      var filter = {task: 'mail', action: ''},
+        rc = this.opener(false, filter) || this.opener(true, filter);
+
+      // refresh the drafts folder in the opener window
+      if (rc && rc.env.mailbox == this.env.drafts_mailbox)
+        rc.command('checkmail');
 
       this.env.draft_id = id;
       $("input[name='_draft_saveid']").val(id);
@@ -3776,6 +3850,7 @@
 
     // 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()
@@ -3789,7 +3864,7 @@
     }
 
     // save compose form content to local storage every 5 seconds
-    if (!this.local_save_timer && window.localStorage) {
+    if (!this.local_save_timer && window.localStorage && this.env.save_localstorage) {
       // track typing activity and only save on changes
       this.compose_type_activity = this.compose_type_activity_last = 0;
       $(document).bind('keypress', function(e){ ref.compose_type_activity++; });
@@ -3801,10 +3876,20 @@
         }
       }, 5000);
 
-      // remove data from local storage if compose screen is left
       $(window).unload(function() {
-        ref.remove_compose_data(ref.env.compose_id);
+        // 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
@@ -3820,7 +3905,7 @@
       if (val = $('[name="_' + hash_fields[i] + '"]').val())
         str += val + ':';
 
-    str += this.editor.get_content();
+    str += this.editor.get_content({refresh: false});
 
     if (this.env.attachments)
       for (id in this.env.attachments)
@@ -3835,6 +3920,10 @@
   // store the contents of the compose form to localstorage
   this.save_compose_form_local = function()
   {
+    // feature is disabled
+    if (!this.env.save_localstorage)
+      return;
+
     var formdata = { session:this.env.session_id, changed:new Date().getTime() },
       ed, empty = true;
 
@@ -3871,15 +3960,16 @@
       }
     });
 
-    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);
     }
   };
 
@@ -3903,7 +3993,7 @@
 
       // initialize HTML editor
       if ((formdata._is_html == '1' && !html_mode) || (formdata._is_html != '1' && html_mode)) {
-        this.command('toggle-editor', {id: this.env.composebody, html: !html_mode});
+        this.command('toggle-editor', {id: this.env.composebody, html: !html_mode, noconvert: true});
       }
     }
   };
@@ -3911,29 +4001,25 @@
   // 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)
   {
@@ -3942,6 +4028,19 @@
 
     if (!show_sig)
       show_sig = this.env.show_sig;
+
+    var id = obj.options[obj.selectedIndex].value,
+      sig = this.env.identity,
+      delim = this.env.recipients_separator,
+      rx_delim = RegExp.escape(delim);
+
+    // enable manual signature insert
+    if (this.env.signatures && this.env.signatures[id]) {
+      this.enable_command('insert-sig', true);
+      this.env.compose_commands.push('insert-sig');
+    }
+    else
+      this.enable_command('insert-sig', false);
 
     // first function execution
     if (!this.env.identities_initialized) {
@@ -3952,18 +4051,11 @@
         return;
     }
 
-    var i, rx,
-      id = obj.options[obj.selectedIndex].value,
-      sig = this.env.identity,
-      delim = this.env.recipients_separator,
-      rx_delim = RegExp.escape(delim),
-      headers = ['replyto', 'bcc'];
-
     // 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)
@@ -3990,15 +4082,7 @@
 
       if (old_val || new_val)
         input.val(input_val).change();
-    }
-
-    // enable manual signature insert
-    if (this.env.signatures && this.env.signatures[id]) {
-      this.enable_command('insert-sig', true);
-      this.env.compose_commands.push('insert-sig');
-    }
-    else
-      this.enable_command('insert-sig', false);
+    });
 
     this.editor.change_signature(id, show_sig);
     this.env.identity = id;
@@ -4254,14 +4338,28 @@
     return url;
   };
 
+  // reset search filter
+  this.reset_search_filter = function()
+  {
+    this.filter_disabled = true;
+    if (this.gui_objects.search_filter)
+      $(this.gui_objects.search_filter).val('ALL').change();
+    this.filter_disabled = false;
+  };
+
   // reset quick-search form
-  this.reset_qsearch = function()
+  this.reset_qsearch = function(all)
   {
     if (this.gui_objects.qsearchbox)
       this.gui_objects.qsearchbox.value = '';
 
     if (this.env.qsearch)
       this.abort_request(this.env.qsearch);
+
+    if (all) {
+      this.env.search_scope = 'base';
+      this.reset_search_filter();
+    }
 
     this.env.qsearch = null;
     this.env.search_request = null;
@@ -4305,28 +4403,37 @@
       (this.env.search_request && (this.env.search_scope || 'base') != 'base');
   };
 
-  this.sent_successfully = function(type, msg, folders)
+  // action executed after mail is sent
+  this.sent_successfully = function(type, msg, folders, save_error)
   {
     this.display_message(msg, type);
+    this.compose_skip_unsavedcheck = true;
 
     if (this.env.extwin) {
-      this.lock_form(this.gui_objects.messageform);
+      if (!save_error)
+        this.lock_form(this.gui_objects.messageform);
 
-      var rc = this.opener();
+      var filter = {task: 'mail', action: ''},
+        rc = this.opener(false, filter) || this.opener(true, filter);
+
       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) {
+        if (folders && $.inArray(rc.env.mailbox, folders) >= 0) {
           rc.command('checkmail');
         }
       }
 
-      setTimeout(function() { window.close(); }, 1000);
+      if (!save_error)
+        setTimeout(function() { window.close(); }, 1000);
     }
-    else {
+    else if (!save_error) {
       // before redirect we need to wait some time for Chrome (#1486177)
       setTimeout(function() { ref.list_mailbox(); }, 500);
     }
+
+    if (save_error)
+      this.env.is_sent = true;
   };
 
 
@@ -4428,7 +4535,7 @@
     this.ksearch_destroy();
 
     // insert all members of a group
-    if (typeof this.env.contacts[id] === 'object' && this.env.contacts[id].type == 'group') {
+    if (typeof this.env.contacts[id] === 'object' && this.env.contacts[id].type == 'group' && !this.env.contacts[id].email) {
       insert += this.env.contacts[id].name + this.env.recipients_delimiter;
       this.group2expand[this.env.contacts[id].id] = $.extend({ input: this.ksearch_input }, this.env.contacts[id]);
       this.http_request('mail/group-expand', {_source: this.env.contacts[id].source, _gid: this.env.contacts[id].id}, false);
@@ -4572,7 +4679,7 @@
         id = i + this.env.contacts.length;
         $('<li>').attr('id', 'rcmkSearchItem' + id)
           .attr('role', 'option')
-          .html(this.quote_html(text.replace(new RegExp('('+RegExp.escape(value)+')', 'ig'), '##$1%%')).replace(/##([^%]+)%%/g, '<b>$1</b>'))
+          .html('<i class="icon"></i>' + 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); })
@@ -4673,15 +4780,16 @@
       clearTimeout(this.preview_timer);
 
     var n, id, sid, contact, writable = false,
+      selected = list.selection.length,
       source = this.env.source ? this.env.address_sources[this.env.source] : null;
 
     // we don't have dblclick handler here, so use 200 instead of this.dblclick_time
-    if (id = list.get_single_selection())
+    if (this.env.contentframe && (id = list.get_single_selection()))
       this.preview_timer = setTimeout(function(){ ref.load_contact(id, 'show'); }, 200);
     else if (this.env.contentframe)
       this.show_contentframe(false);
 
-    if (list.selection.length) {
+    if (selected) {
       list.draggable = false;
 
       // no source = search result, we'll need to detect if any of
@@ -4716,11 +4824,12 @@
 
     // if a group is currently selected, and there is at least one contact selected
     // thend we can enable the group-remove-selected command
-    this.enable_command('group-remove-selected', this.env.group && list.selection.length > 0 && writable);
-    this.enable_command('compose', this.env.group || list.selection.length > 0);
-    this.enable_command('export-selected', 'copy', list.selection.length > 0);
+    this.enable_command('group-remove-selected', this.env.group && selected && writable);
+    this.enable_command('compose', this.env.group || selected);
+    this.enable_command('print', selected == 1);
+    this.enable_command('export-selected', 'copy', selected > 0);
     this.enable_command('edit', id && writable);
-    this.enable_command('delete', 'move', list.selection.length > 0 && writable);
+    this.enable_command('delete', 'move', selected && writable);
 
     return false;
   };
@@ -4728,10 +4837,14 @@
   this.list_contacts = function(src, group, page)
   {
     var win, folder, url = {},
+      refresh = src === undefined && group === undefined && page === undefined,
       target = window;
 
     if (!src)
       src = this.env.source;
+
+    if (refresh)
+      group = this.env.group;
 
     if (page && this.current_page == page && src == this.env.source && group == this.env.group)
       return false;
@@ -4740,7 +4853,7 @@
       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)
@@ -4829,8 +4942,8 @@
     this.contact_list.data = {};
     this.contact_list.clear(true);
     this.show_contentframe(false);
-    this.enable_command('delete', 'move', 'copy', false);
-    this.enable_command('compose', this.env.group ? true : false);
+    this.enable_command('delete', 'move', 'copy', 'print', false);
+    this.enable_command('compose', this.env.group);
   };
 
   this.set_group_prop = function(prop)
@@ -4870,7 +4983,7 @@
         this.contact_list.clear_selection();
 
       this.enable_command('compose', rec && rec.email);
-      this.enable_command('export-selected', rec && rec._type != 'group');
+      this.enable_command('export-selected', 'print', rec && rec._type != 'group');
     }
     else if (framed)
       return false;
@@ -4878,6 +4991,9 @@
     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;
@@ -5118,10 +5234,10 @@
         dateFormat: this.env.date_format,
         changeMonth: true,
         changeYear: true,
-        yearRange: '-100:+10',
+        yearRange: '-120:+10',
         showOtherMonths: true,
-        selectOtherMonths: true,
-        onSelect: function(dateText) { $(this).focus().val(dateText) }
+        selectOtherMonths: true
+//        onSelect: function(dateText) { $(this).focus().val(dateText); }
       });
       $('input.datepicker').datepicker();
     }
@@ -5132,29 +5248,57 @@
         .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'),
+        'class': 'mainaction',
+        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 ref.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'),
+        'class': 'mainaction',
+        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()
@@ -5179,38 +5323,6 @@
     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 ref.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.savedsearchlist;
-      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()
   {
@@ -5230,62 +5342,9 @@
     }
   };
 
-  // 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,
@@ -5303,8 +5362,6 @@
   // callback for renaming a contact group
   this.update_contact_group = function(prop)
   {
-    this.reset_add_input();
-
     var key = 'G'+prop.source+prop.id,
       newnode = {};
 
@@ -5568,8 +5625,6 @@
   // 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)
@@ -5585,10 +5640,28 @@
     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'),
+        'class': 'mainaction',
+        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()
@@ -5775,39 +5848,59 @@
     this.last_sub_rx = RegExp('['+delim+']?[^'+delim+']+$');
 
     this.subscription_list = new rcube_treelist_widget(this.gui_objects.subscriptionlist, {
-        selectable: true
+        selectable: true,
+        tabexit: false,
+        parent_focus: true,
+        id_prefix: 'rcmli',
+        id_encode: this.html_identifier_encode,
+        id_decode: this.html_identifier_decode,
+        searchbox: '#foldersearch'
     });
 
     this.subscription_list
       .addEventListener('select', function(node) { ref.subscription_select(node.id); })
-      .draggable({cancel: '#mailboxroot'})
+      .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 = ref.env.subscriptionrows[$(node).attr('id')],
-            dest = ref.env.subscriptionrows[this.id],
-            source_name = source[0],
-            dest_name = dest[0];
+          if (!$(node).is('.mailbox'))
+            return false;
 
-          return !source[2]
-            && dest_name != source_name.replace(ref.last_sub_rx, '')
-            && !dest_name.startsWith(source_name + ref.env.delimiter);
+          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];
+
+          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) {
-          ref.subscription_move_folder(ui.draggable.attr('id'), this.id);
+          var source = ref.folder_id2name(ui.draggable.attr('id')),
+            dest = ref.folder_id2name(this.id);
+
+          ref.subscription_move_folder(source, dest);
         }
       });
+  };
+
+  this.folder_id2name = function(id)
+  {
+    return id ? ref.html_identifier_decode(id.replace(/^rcmli/, '')) : null;
   };
 
   this.subscription_select = function(id)
   {
     var folder;
 
-    if (id && id != 'mailboxroot' && (folder = this.env.subscriptionrows[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 {
@@ -5819,16 +5912,13 @@
 
   this.subscription_move_folder = function(from, to)
   {
-    var source = this.env.subscriptionrows[from][0];
-      dest = this.env.subscriptionrows[to][0];
-
-    if (source && dest !== null && source != dest && dest != source.replace(this.last_sub_rx, '')) {
-      var path = source.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 = dest === '' ? basename : dest + this.env.delimiter + basename;
+        newname = to === '' || to === '*' ? basename : to + this.env.delimiter + basename;
 
-      if (newname != source) {
-        this.http_post('rename-folder', {_folder_oldname: source, _folder_newname: newname},
+      if (newname != from) {
+        this.http_post('rename-folder', {_folder_oldname: from, _folder_newname: newname},
           this.set_busy(true, 'foldermoving'));
       }
     }
@@ -5843,50 +5933,61 @@
   // 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'))) {
-      this.http_post('delete-folder', {_mbox: folder}, this.set_busy(true, 'folderdeleting'));
+    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, tmp, tmp_name, rowid, collator,
-      folders = [], list = [], slist = [],
-      list_element = $(this.gui_objects.subscriptionlist),
-      refrow = $('li', list_element).get(1),
-      id = 'rcmli'+((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
-    $('.name', row).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];
 
     // copy folders data to an array for sorting
-    $.each(this.env.subscriptionrows, function(k, v) { folders.push(v); });
+    $.each(this.env.subscriptionrows, function(k, v) { v[3] = k; folders.push(v); });
 
     try {
       // use collator if supported (FF29, IE11, Opera15, Chrome24)
@@ -5898,66 +5999,108 @@
     folders.sort(function(a, b) {
       var i, f1, f2,
         path1 = a[0].split(ref.env.delimiter),
-        path2 = b[0].split(ref.env.delimiter);
+        path2 = b[0].split(ref.env.delimiter),
+        len = path1.length;
 
-      for (i=0; i<path1.length; i++) {
+      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)
-      $('#' + rowid).after(row);
-    else
+    if (rowid && (n = this.subscription_list.get_item(rowid, true))) {
+      // find parent folder
+      if (pos = id.lastIndexOf(this.env.delimiter)) {
+        parent = id.substring(0, pos);
+        parent = this.subscription_list.get_item(parent, true);
+
+        // add required tree elements to the parent if not already there
+        if (!$('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.select();
+    this.subscription_list.reset(true);
+    this.subscription_select();
 
-    if (!skip_init)
-      this.init_subscription_list();
+    // expand parent
+    if (parent) {
+      this.subscription_list.expand(this.folder_id2name(parent.id));
+    }
 
-    row = row.get(0);
+    row = row.show().get(0);
     if (row.scrollIntoView)
       row.scrollIntoView();
 
@@ -5965,113 +6108,85 @@
   };
 
   // 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,
-      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 || '');
+    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;
-        }
-        $('.name', row).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(id.replace(/^rcmli/, ''));
-    $('#' + 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)
@@ -6088,15 +6203,6 @@
       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)
-        return id;
   };
 
   // when user select a folder in manager
@@ -6122,9 +6228,9 @@
   // 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)
@@ -6138,6 +6244,37 @@
     $('#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           *********/
@@ -6300,7 +6437,7 @@
   };
 
   // display a system message, list of types in common.css (below #message definition)
-  this.display_message = function(msg, type, timeout)
+  this.display_message = function(msg, type, timeout, key)
   {
     // pass command to parent window
     if (this.is_framed())
@@ -6309,18 +6446,34 @@
     if (!this.gui_objects.message) {
       // save message in order to display after page loaded
       if (type != 'loading')
-        this.pending_message = [msg, type, timeout];
+        this.pending_message = [msg, type, timeout, key];
       return 1;
     }
 
-    type = type ? type : 'notice';
+    if (!type)
+      type = 'notice';
 
-    var key = this.html_identifier(msg),
-      date = new Date(),
+    if (!key)
+      key = this.html_identifier(msg);
+
+    var date = new Date(),
       id = type + date.getTime();
 
-    if (!timeout)
-      timeout = this.message_time * (type == 'error' || type == 'warning' ? 2 : 1);
+    if (!timeout) {
+      switch (type) {
+        case 'error':
+        case 'warning':
+          timeout = this.message_time * 2;
+          break;
+
+        case 'uploading':
+          timeout = 0;
+          break;
+
+        default:
+          timeout = this.message_time;
+      }
+    }
 
     if (type == 'loading') {
       key = 'loading';
@@ -6353,7 +6506,7 @@
     if (type == 'loading') {
       this.messages[key].labels = [{'id': id, 'msg': msg}];
     }
-    else {
+    else if (type != 'uploading') {
       obj.click(function() { return ref.hide_message(obj); })
         .attr('role', 'alert');
     }
@@ -6362,6 +6515,7 @@
 
     if (timeout > 0)
       setTimeout(function() { ref.hide_message(id, type != 'loading'); }, timeout);
+
     return id;
   };
 
@@ -6440,24 +6594,60 @@
     this.messages = {};
   };
 
+  // display uploading message with progress indicator
+  // data should contain: name, total, current, percent, text
+  this.display_progress = function(data)
+  {
+    if (!data || !data.name)
+      return;
+
+    var msg = this.messages['progress' + data.name];
+
+    if (!data.label)
+      data.label = this.get_label('uploadingmany');
+
+    if (!msg) {
+      if (!data.percent || data.percent < 100)
+        this.display_message(data.label, 'uploading', 0, 'progress' + data.name);
+      return;
+    }
+
+    if (!data.total || data.percent >= 100) {
+      this.hide_message(msg.obj);
+      return;
+    }
+
+    if (data.text)
+      data.label += ' ' + data.text;
+
+    msg.obj.text(data.label);
+  };
+
   // 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);
+
+    options = $.extend({
         title: title,
         buttons: buttons,
         modal: true,
         resizable: true,
         width: 500,
-        close: function(event, ui) { $(this).remove() }
-      }, options || {}));
+        close: function(event, ui) { $(this).remove(); }
+      }, options || {});
+
+    popup.dialog(options);
 
     // resize and center popup
     var win = $(window), w = win.width(), h = win.height(),
@@ -6466,6 +6656,11 @@
     popup.dialog('option', {
       height: Math.min(h - 40, height + 75 + (buttons ? 50 : 0)),
       width: Math.min(w - 20, width + 36)
+    });
+
+    // assign special classes to dialog buttons
+    $.each(options.button_classes || [], function(i, v) {
+      if (v) $($('.ui-dialog-buttonpane button.ui-button', popup.parent()).get(i)).addClass(v);
     });
 
     return popup;
@@ -6532,6 +6727,9 @@
       repl, cell, col, n, len, tr;
 
     this.env.listcols = listcols;
+
+    if (!this.env.coltypes)
+      this.env.coltypes = {};
 
     // replace old column headers
     if (thead) {
@@ -6604,7 +6802,7 @@
   this.set_quota = function(content)
   {
     if (this.gui_objects.quotadisplay && content && content.type == 'text')
-      $(this.gui_objects.quotadisplay).html(content.percent+'%').attr('title', content.title);
+      $(this.gui_objects.quotadisplay).text((content.percent||0) + '%').attr('title', content.title);
 
     this.triggerEvent('setquota', content);
     this.env.quota_content = content;
@@ -6861,7 +7059,7 @@
       // truncate stack down to the one containing the ref link
       for (var i = this.menu_stack.length - 1; stack && i >= 0; i--) {
         if (!$(ref).parents('#'+this.menu_stack[i]).length)
-          this.hide_menu(this.menu_stack[i]);
+          this.hide_menu(this.menu_stack[i], event);
       }
       if (stack && this.menu_stack.length) {
         obj.data('parent', $.last(this.menu_stack));
@@ -7103,22 +7301,32 @@
   };
 
   // send a http request to the server
-  this.http_request = function(action, query, lock)
+  this.http_request = function(action, data, lock)
   {
-    var url = this.url(action, query);
+    if (typeof data !== 'object')
+      data = rcube_parse_query(data);
+
+    data._remote = 1;
+    data._unlock = lock ? lock : 0;
 
     // trigger plugin hook
-    var result = this.triggerEvent('request'+action, query);
+    var result = this.triggerEvent('request' + action, data);
 
-    if (result !== undefined) {
-      // abort if one the handlers returned false
-      if (result === false)
-        return false;
-      else
-        url = this.url(action, result);
+    // abort if one of the handlers returned false
+    if (result === false) {
+      if (data._unlock)
+        this.set_busy(false, null, data._unlock);
+      return false;
+    }
+    else if (result !== undefined) {
+      data = result;
+      if (data._action) {
+        action = data._action;
+        delete data._action;
+      }
     }
 
-    url += '&_remote=1';
+    var url = this.url(action, data);
 
     // send request
     this.log('HTTP GET: ' + url);
@@ -7127,33 +7335,39 @@
     this.start_keepalive();
 
     return $.ajax({
-      type: 'GET', url: url, data: { _unlock:(lock?lock:0) }, dataType: 'json',
-      success: function(data){ ref.http_response(data); },
+      type: 'GET', url: url, dataType: 'json',
+      success: function(data) { ref.http_response(data); },
       error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
     });
   };
 
   // send a http POST request to the server
-  this.http_post = function(action, postdata, lock)
+  this.http_post = function(action, data, lock)
   {
-    var url = this.url(action);
+    if (typeof data !== 'object')
+      data = rcube_parse_query(data);
 
-    if (postdata && typeof postdata === 'object') {
-      postdata._remote = 1;
-      postdata._unlock = (lock ? lock : 0);
-    }
-    else
-      postdata += (postdata ? '&' : '') + '_remote=1' + (lock ? '&_unlock='+lock : '');
+    data._remote = 1;
+    data._unlock = lock ? lock : 0;
 
     // trigger plugin hook
-    var result = this.triggerEvent('request'+action, postdata);
-    if (result !== undefined) {
-      // abort if one of the handlers returned false
-      if (result === false)
-        return false;
-      else
-        postdata = result;
+    var result = this.triggerEvent('request'+action, data);
+
+    // abort if one of the handlers returned false
+    if (result === false) {
+      if (data._unlock)
+        this.set_busy(false, null, data._unlock);
+      return false;
     }
+    else if (result !== undefined) {
+      data = result;
+      if (data._action) {
+        action = data._action;
+        delete data._action;
+      }
+    }
+
+    var url = this.url(action);
 
     // send request
     this.log('HTTP POST: ' + url);
@@ -7162,7 +7376,7 @@
     this.start_keepalive();
 
     return $.ajax({
-      type: 'POST', url: url, data: postdata, dataType: 'json',
+      type: 'POST', url: url, data: data, dataType: 'json',
       success: function(data){ ref.http_response(data); },
       error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
     });
@@ -7231,7 +7445,7 @@
           this.enable_command('compose', (uid && this.contact_list.rows[uid]));
           this.enable_command('delete', 'edit', writable);
           this.enable_command('export', (this.contact_list && this.contact_list.rowcount > 0));
-          this.enable_command('export-selected', false);
+          this.enable_command('export-selected', 'print', false);
         }
 
       case 'move':
@@ -7382,6 +7596,7 @@
     // 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) {
       setTimeout(function(){ ref.redirect(redirect_url, true); }, 2000);
@@ -7770,12 +7985,24 @@
   };
 
   // get window.opener.rcmail if available
-  this.opener = function()
+  this.opener = function(deep, filter)
   {
+    var i, win = window.opener;
+
     // catch Error: Permission denied to access property rcmail
     try {
-      if (window.opener && !opener.closed && opener.rcmail)
-        return opener.rcmail;
+      if (win && !win.closed) {
+        // try parent of the opener window, e.g. preview frame
+        if (deep && (!win.rcmail || win.rcmail.env.framed) && win.parent && win.parent.rcmail)
+          win = win.parent;
+
+        if (win.rcmail && filter)
+          for (i in filter)
+            if (win.rcmail.env[i] != filter[i])
+              return;
+
+        return win.rcmail;
+      }
     }
     catch (e) {}
   };
@@ -7784,13 +8011,17 @@
   // and return the message uid
   this.get_single_uid = function()
   {
-    return this.env.uid ? this.env.uid : (this.message_list ? this.message_list.get_single_selection() : null);
+    var uid = this.env.uid || (this.message_list ? this.message_list.get_single_selection() : null);
+    var result = ref.triggerEvent('get_single_uid', { uid: uid });
+    return result || uid;
   };
 
   // same as above but for contacts
   this.get_single_cid = function()
   {
-    return this.env.cid ? this.env.cid : (this.contact_list ? this.contact_list.get_single_selection() : null);
+    var cid = this.env.cid || (this.contact_list ? this.contact_list.get_single_selection() : null);
+    var result = ref.triggerEvent('get_single_cid', { cid: cid });
+    return result || cid;
   };
 
   // get the IMP mailbox of the message with the given UID
@@ -7925,7 +8156,7 @@
 
     img.onload = function() { ref.env.browser_capabilities.tif = 1; };
     img.onerror = function() { ref.env.browser_capabilities.tif = 0; };
-    img.src = 'program/resources/blank.tif';
+    img.src = this.assets_path('program/resources/blank.tif');
   };
 
   this.pdf_support_check = function()
@@ -7938,7 +8169,7 @@
     if (plugin && plugin.enabledPlugin)
         return 1;
 
-    if (window.ActiveXObject) {
+    if ('ActiveXObject' in window) {
       try {
         if (plugin = new ActiveXObject("AcroPDF.PDF"))
           return 1;
@@ -7971,7 +8202,7 @@
     if (plugin && plugin.enabledPlugin)
         return 1;
 
-    if (window.ActiveXObject) {
+    if ('ActiveXObject' in window) {
       try {
         if (plugin = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
           return 1;
@@ -7980,6 +8211,15 @@
     }
 
     return 0;
+  };
+
+  this.assets_path = function(path)
+  {
+    if (this.env.assets_path && !path.startsWith(this.env.assets_path)) {
+      path = this.env.assets_path + path;
+    }
+
+    return path;
   };
 
   // Cookie setter
@@ -7999,22 +8239,52 @@
   // wrapper for localStorage.getItem(key)
   this.local_storage_get_item = function(key, deflt, encrypted)
   {
+    var item, result;
+
     // TODO: add encryption
-    var item = localStorage.getItem(this.get_local_storage_prefix() + key);
-    return item !== null ? JSON.parse(item) : (deflt || null);
+    try {
+      item = localStorage.getItem(this.get_local_storage_prefix() + key);
+      result = JSON.parse(item);
+    }
+    catch (e) { }
+
+    return result || 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;
+    }
+  };
+
+  this.print_dialog = function()
+  {
+    if (bw.safari)
+      setTimeout('window.print()', 10);
+    else
+      window.print();
   };
 }  // end object rcube_webmail
 
@@ -8025,7 +8295,7 @@
   if (!elem.title) {
     var $elem = $(elem);
     if ($elem.width() + (indent || 0) * 15 > $elem.parent().width())
-      elem.title = $elem.text();
+      elem.title = rcube_webmail.subject_text(elem);
   }
 };
 
@@ -8042,10 +8312,17 @@
 
     tmp.remove();
     if (w + $('span.branch', $elem).width() * 15 > $elem.width())
-      elem.title = txt;
+      elem.title = rcube_webmail.subject_text(elem);
   }
 };
 
+rcube_webmail.subject_text = function(elem)
+{
+  var t = $(elem).clone();
+  t.find('.skip-on-drag').remove();
+  return t.text();
+};
+
 rcube_webmail.prototype.get_cookie = getCookie;
 
 // copy event engine prototype

--
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