From 66536974fe12a02ca5ffcec4354bf5113282a0cc Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Mon, 07 Apr 2014 03:53:46 -0400
Subject: [PATCH] Merge branch 'dev-multi-folder-search'

---
 program/js/app.js |  896 +++++++++++++++++++++++++++++++++++++++++------------------
 1 files changed, 618 insertions(+), 278 deletions(-)

diff --git a/program/js/app.js b/program/js/app.js
index 79436ad..f548ad8 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -31,10 +31,11 @@
   this.onloads = [];
   this.messages = {};
   this.group2expand = {};
+  this.http_request_jobs = {};
 
   // webmail client settings
   this.dblclick_time = 500;
-  this.message_time = 4000;
+  this.message_time = 5000;
   this.identifier_expr = new RegExp('[^0-9a-z\-_]', 'gi');
 
   // environment defaults
@@ -187,8 +188,6 @@
     if (this.env.permaurl)
       this.enable_command('permaurl', 'extwin', true);
 
-    this.local_storage_prefix = 'roundcube.' + (this.env.user_id || 'anonymous') + '.';
-
     switch (this.task) {
 
       case 'mail':
@@ -200,23 +199,25 @@
             multiselect:true, multiexpand:true, draggable:true, keyboard:true,
             column_movable:this.env.col_movable, dblclick_time:this.dblclick_time
             });
-          this.message_list.row_init = function(o){ p.init_message_row(o); };
-          this.message_list.addEventListener('dblclick', function(o){ p.msglist_dbl_click(o); });
-          this.message_list.addEventListener('click', function(o){ p.msglist_click(o); });
-          this.message_list.addEventListener('keypress', function(o){ p.msglist_keypress(o); });
-          this.message_list.addEventListener('select', function(o){ p.msglist_select(o); });
-          this.message_list.addEventListener('dragstart', function(o){ p.drag_start(o); });
-          this.message_list.addEventListener('dragmove', function(e){ p.drag_move(e); });
-          this.message_list.addEventListener('dragend', function(e){ p.drag_end(e); });
-          this.message_list.addEventListener('expandcollapse', function(e){ p.msglist_expand(e); });
-          this.message_list.addEventListener('column_replace', function(e){ p.msglist_set_coltypes(e); });
-          this.message_list.addEventListener('listupdate', function(e){ p.triggerEvent('listupdate', e); });
+          this.message_list
+            .addEventListener('initrow', function(o) { p.init_message_row(o); })
+            .addEventListener('dblclick', function(o) { p.msglist_dbl_click(o); })
+            .addEventListener('click', function(o) { p.msglist_click(o); })
+            .addEventListener('keypress', function(o) { p.msglist_keypress(o); })
+            .addEventListener('select', function(o) { p.msglist_select(o); })
+            .addEventListener('dragstart', function(o) { p.drag_start(o); })
+            .addEventListener('dragmove', function(e) { p.drag_move(e); })
+            .addEventListener('dragend', function(e) { p.drag_end(e); })
+            .addEventListener('expandcollapse', function(o) { p.msglist_expand(o); })
+            .addEventListener('column_replace', function(o) { p.msglist_set_coltypes(o); })
+            .addEventListener('listupdate', function(o) { p.triggerEvent('listupdate', o); })
+            .init();
 
           document.onmouseup = function(e){ return p.doc_mouse_up(e); };
           this.gui_objects.messagelist.parentNode.onmousedown = function(e){ return p.click_on_list(e); };
 
-          this.message_list.init();
           this.enable_command('toggle_status', 'toggle_flag', 'sort', true);
+          this.enable_command('set-listmode', this.env.threads && !this.env.search_request);
 
           // load messages
           this.command('list');
@@ -315,9 +316,11 @@
         if (this.gui_objects.contactslist) {
           this.contact_list = new rcube_list_widget(this.gui_objects.contactslist,
             { multiselect:true, draggable:false, keyboard:false });
-          this.contact_list.addEventListener('select', function(o){ ref.compose_recipient_select(o); });
-          this.contact_list.addEventListener('dblclick', function(o){ ref.compose_add_recipient('to'); });
-          this.contact_list.init();
+          this.contact_list
+            .addEventListener('initrow', function(o) { p.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'); })
+            .init();
         }
 
         if (this.gui_objects.addressbookslist) {
@@ -354,13 +357,14 @@
         if (this.gui_objects.contactslist) {
           this.contact_list = new rcube_list_widget(this.gui_objects.contactslist,
             {multiselect:true, draggable:this.gui_objects.folderlist?true:false, keyboard:true});
-          this.contact_list.row_init = function(row){ p.triggerEvent('insertrow', { cid:row.uid, row:row }); };
-          this.contact_list.addEventListener('keypress', function(o){ p.contactlist_keypress(o); });
-          this.contact_list.addEventListener('select', function(o){ p.contactlist_select(o); });
-          this.contact_list.addEventListener('dragstart', function(o){ p.drag_start(o); });
-          this.contact_list.addEventListener('dragmove', function(e){ p.drag_move(e); });
-          this.contact_list.addEventListener('dragend', function(e){ p.drag_end(e); });
-          this.contact_list.init();
+          this.contact_list
+            .addEventListener('initrow', function(o) { p.triggerEvent('insertrow', { cid:o.uid, row:o }); })
+            .addEventListener('keypress', function(o) { p.contactlist_keypress(o); })
+            .addEventListener('select', function(o) { p.contactlist_select(o); })
+            .addEventListener('dragstart', function(o) { p.drag_start(o); })
+            .addEventListener('dragmove', function(e) { p.drag_move(e); })
+            .addEventListener('dragend', function(e) { p.drag_end(e); })
+            .init();
 
           if (this.env.cid)
             this.contact_list.highlight_row(this.env.cid);
@@ -417,35 +421,39 @@
         }
 
         if (this.gui_objects.identitieslist) {
-          this.identity_list = new rcube_list_widget(this.gui_objects.identitieslist, {multiselect:false, draggable:false, keyboard:false});
-          this.identity_list.addEventListener('select', function(o){ p.identity_select(o); });
-          this.identity_list.init();
-          this.identity_list.focus();
+          this.identity_list = new rcube_list_widget(this.gui_objects.identitieslist,
+            {multiselect:false, draggable:false, keyboard:false});
+          this.identity_list
+            .addEventListener('select', function(o) { p.identity_select(o); })
+            .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:false});
-          this.sections_list.addEventListener('select', function(o){ p.section_select(o); });
-          this.sections_list.init();
-          this.sections_list.focus();
+          this.sections_list
+            .addEventListener('select', function(o) { p.section_select(o); })
+            .init()
+            .focus();
         }
         else if (this.gui_objects.subscriptionlist) {
           this.init_subscription_list();
         }
         else if (this.gui_objects.responseslist) {
           this.responses_list = new rcube_list_widget(this.gui_objects.responseslist, {multiselect:false, draggable:false, keyboard:false});
-          this.responses_list.addEventListener('select', function(list) {
-            var win, id = list.get_single_selection();
-            p.enable_command('delete', !!id && $.inArray(id, p.env.readonly_responses) < 0);
-            if (id && (win = p.get_frame_window(p.env.contentframe))) {
-              p.set_busy(true);
-              p.location_href({ _action:'edit-response', _key:id, _framed:1 }, win);
-            }
-          });
-          this.responses_list.init();
-          this.responses_list.focus();
+          this.responses_list
+            .addEventListener('select', function(list) {
+              var win, id = list.get_single_selection();
+              p.enable_command('delete', !!id && $.inArray(id, p.env.readonly_responses) < 0);
+              if (id && (win = p.get_frame_window(p.env.contentframe))) {
+                p.set_busy(true);
+                p.location_href({ _action:'edit-response', _key:id, _framed:1 }, win);
+              }
+            })
+            .init()
+            .focus();
         }
 
         break;
@@ -511,11 +519,12 @@
           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) }
+          check_droptarget: function(node) { return !node.virtual && ref.check_droptarget(node.id) }
         });
-        this.treelist.addEventListener('collapse', function(node){ ref.folder_collapsed(node) });
-        this.treelist.addEventListener('expand', function(node){ ref.folder_collapsed(node) });
-        this.treelist.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' }) });
       }
     }
 
@@ -557,7 +566,7 @@
   // execute a specific command on the web client
   this.command = function(command, props, obj, event)
   {
-    var ret, uid, cid, url, flag;
+    var ret, uid, cid, url, flag, aborted = false;
 
     if (obj && obj.blur)
       obj.blur();
@@ -643,11 +652,16 @@
           var form = this.gui_objects.messageform,
             win = this.open_window('');
 
-          this.save_compose_form_local();
-          $("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();
+          if (win) {
+            this.save_compose_form_local();
+            $("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 {
           this.open_window(this.env.permaurl, true);
@@ -677,7 +691,7 @@
 
       case 'open':
         if (uid = this.get_single_uid()) {
-          obj.href = this.url('show', {_mbox: this.env.mailbox, _uid: uid});
+          obj.href = this.url('show', {_mbox: this.get_message_mailbox(uid), _uid: uid});
           return true;
         }
         break;
@@ -688,8 +702,17 @@
         break;
 
       case 'list':
-        if (props && props != '')
-          this.reset_qsearch();
+        // re-send for the selected folder
+        if (props && props != '' && this.env.search_request) {
+          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 = 'base';
+          this.qsearch(this.gui_objects.qsearchbox.value);
+          this.select_folder(this.env.mailbox, '', true);
+          break;
+        }
+
         if (this.env.action == 'compose' && this.env.extwin)
           window.close();
         else if (this.task == 'mail') {
@@ -698,6 +721,10 @@
         }
         else if (this.task == 'addressbook')
           this.list_contacts(props);
+        break;
+
+      case 'set-listmode':
+        this.set_list_options(null, undefined, undefined, props == 'threads' ? 1 : 0);
         break;
 
       case 'sort':
@@ -780,9 +807,9 @@
           this.load_contact(cid, 'edit');
         else if (this.task == 'settings' && props)
           this.load_identity(props, 'edit-identity');
-        else if (this.task == 'mail' && (cid = this.get_single_uid())) {
-          url = { _mbox: this.env.mailbox };
-          url[this.env.mailbox == this.env.drafts_mailbox && props != 'new' ? '_draft_uid' : '_uid'] = cid;
+        else if (this.task == 'mail' && (uid = this.get_single_uid())) {
+          url = { _mbox: this.get_message_mailbox(uid) };
+          url[this.env.mailbox == this.env.drafts_mailbox && props != 'new' ? '_draft_uid' : '_uid'] = uid;
           this.open_compose_step(url);
         }
         break;
@@ -844,14 +871,14 @@
       case 'move':
       case 'moveto': // deprecated
         if (this.task == 'mail')
-          this.move_messages(props);
+          this.move_messages(props, obj);
         else if (this.task == 'addressbook')
           this.move_contacts(props);
         break;
 
       case 'copy':
         if (this.task == 'mail')
-          this.copy_messages(props);
+          this.copy_messages(props, obj);
         else if (this.task == 'addressbook')
           this.copy_contacts(props);
         break;
@@ -1042,7 +1069,10 @@
         // Reset the auto-save timer
         clearTimeout(this.save_timer);
 
-        this.upload_file(props || this.gui_objects.uploadform, 'upload');
+        if (!this.upload_file(props || this.gui_objects.uploadform, 'upload')) {
+          alert(this.get_label('selectimportfile'));
+          aborted = true;
+        }
         break;
 
       case 'insert-sig':
@@ -1062,7 +1092,7 @@
       case 'reply-list':
       case 'reply':
         if (uid = this.get_single_uid()) {
-          url = {_reply_uid: uid, _mbox: this.env.mailbox};
+          url = {_reply_uid: uid, _mbox: this.get_message_mailbox(uid)};
           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');
@@ -1090,7 +1120,7 @@
           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.env.mailbox)+(this.env.safemode ? '&_safe=1' : ''), true, true);
+          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) {
             if (this.env.action != 'show')
               this.mark_message('read', uid);
@@ -1107,8 +1137,9 @@
         if (this.env.action == 'get') {
           location.href = location.href.replace(/_frame=/, '_download=');
         }
-        else if (uid = this.get_single_uid())
-          this.goto_url('viewsource', { _uid: uid, _mbox: this.env.mailbox, _save: 1 });
+        else if (uid = this.get_single_uid()) {
+          this.goto_url('viewsource', { _uid: uid, _mbox: this.get_message_mailbox(uid), _save: 1 });
+        }
         break;
 
       // quicksearch
@@ -1165,8 +1196,13 @@
 
       case 'import-messages':
         var form = props || this.gui_objects.importform;
-        $('input[name="_unlock"]', form).val(this.set_busy(true, 'importwait'));
-        this.upload_file(form, 'import');
+        var importlock = this.set_busy(true, 'importwait');
+        $('input[name="_unlock"]', form).val(importlock);
+        if (!this.upload_file(form, 'import')) {
+          this.set_busy(false, null, importlock);
+          alert(this.get_label('selectimportfile'));
+          aborted = true;
+        }
         break;
 
       case 'import':
@@ -1174,6 +1210,7 @@
           var file = document.getElementById('rcmimportfile');
           if (file && !file.value) {
             alert(this.get_label('selectimportfile'));
+            aborted = true;
             break;
           }
           this.gui_objects.importform.submit();
@@ -1225,9 +1262,9 @@
         break;
     }
 
-    if (this.triggerEvent('after'+command, props) === false)
+    if (!aborted && this.triggerEvent('after'+command, props) === false)
       ret = false;
-    this.triggerEvent('actionafter', {props:props, action:command});
+    this.triggerEvent('actionafter', { props:props, action:command, aborted:aborted });
 
     return ret === false ? false : obj ? false : true;
   };
@@ -1413,8 +1450,6 @@
 
   this.drag_start = function(list)
   {
-    var model = this.task == 'mail' ? this.env.mailboxes : this.env.contactfolders;
-
     this.drag_active = true;
 
     if (this.preview_timer)
@@ -1429,11 +1464,31 @@
 
   this.drag_end = function(e)
   {
-    this.drag_active = false;
-    this.env.last_folder_target = null;
+    var list, model;
 
     if (this.treelist)
       this.treelist.drag_end();
+
+    // execute drag & drop action when mouse was released
+    if (list = this.message_list)
+      model = this.env.mailboxes;
+    else if (list = this.contact_list)
+      model = this.env.contactfolders;
+
+    if (this.drag_active && model && this.env.last_folder_target) {
+      var target = model[this.env.last_folder_target];
+      list.draglayer.hide();
+
+      if (this.contact_list) {
+        if (!this.contacts_drag_menu(e, target))
+          this.command('move', target);
+      }
+      else if (!this.drag_menu(e, target))
+        this.command('move', target);
+    }
+
+    this.drag_active = false;
+    this.env.last_folder_target = null;
   };
 
   this.drag_move = function(e)
@@ -1494,37 +1549,15 @@
 
   this.doc_mouse_up = function(e)
   {
-    var model, list, id;
+    var list, id;
 
     // ignore event if jquery UI dialog is open
     if ($(rcube_event.get_target(e)).closest('.ui-dialog, .ui-widget-overlay').length)
       return;
 
-    if (list = this.message_list)
-      model = this.env.mailboxes;
-    else if (list = this.contact_list)
-      model = this.env.contactfolders;
-    else if (this.ksearch_value)
-      this.ksearch_blur();
-
+    list = this.message_list || this.contact_list;
     if (list && !rcube_mouse_is_over(e, list.list.parentNode))
       list.blur();
-
-    // handle mouse release when dragging
-    if (this.drag_active && model && this.env.last_folder_target) {
-      var target = model[this.env.last_folder_target];
-
-      this.env.last_folder_target = null;
-      list.draglayer.hide();
-      this.drag_end(e);
-
-      if (this.contact_list) {
-        if (!this.contacts_drag_menu(e, target))
-          this.command('move', target);
-      }
-      else if (!this.drag_menu(e, target))
-        this.command('move', target);
-    }
 
     // reset 'pressed' buttons
     if (this.buttons_sel) {
@@ -1613,7 +1646,7 @@
 
     var uid = list.get_single_selection();
 
-    if (uid && this.env.mailbox == this.env.drafts_mailbox)
+    if (uid && (this.env.messages[uid].mbox || this.env.mailbox) == this.env.drafts_mailbox)
       this.open_compose_step({ _draft_uid: uid, _mbox: this.env.mailbox });
     else if (uid)
       this.show_message(uid, false, false);
@@ -1708,7 +1741,7 @@
     url += (url.match(/\?/) ? '&' : '?') + '_extwin=1';
 
     if (this.env.standard_windows)
-      extwin = window.open(url, wname);
+      var extwin = window.open(url, wname);
     else {
       var win = this.is_framed() ? parent.window : window,
         page = $(win),
@@ -1728,8 +1761,11 @@
       extwin.document.write('<html><body>' + this.get_label('loading') + '</body></html>');
     }
 
+    // allow plugins to grab the window reference (#1489413)
+    this.triggerEvent('openwindow', { url:url, handle:extwin });
+
     // focus window, delayed to bring to front
-    window.setTimeout(function() { extwin.focus(); }, 10);
+    window.setTimeout(function() { extwin && extwin.focus(); }, 10);
 
     return extwin;
   };
@@ -1742,7 +1778,7 @@
   this.init_message_row = function(row)
   {
     var i, fn = {}, self = this, uid = row.uid,
-      status_icon = (this.env.status_col != null ? 'status' : 'msg') + 'icn' + row.uid;
+      status_icon = (this.env.status_col != null ? 'status' : 'msg') + 'icn' + row.id;
 
     if (uid && this.env.messages[uid])
       $.extend(row, this.env.messages[uid]);
@@ -1754,17 +1790,17 @@
 
     // save message icon position too
     if (this.env.status_col != null)
-      row.msgicon = document.getElementById('msgicn'+row.uid);
+      row.msgicon = document.getElementById('msgicn'+row.id);
     else
       row.msgicon = row.icon;
 
     // set eventhandler to flag icon
-    if (this.env.flagged_col != null && (row.flagicon = document.getElementById('flagicn'+row.uid))) {
+    if (this.env.flagged_col != null && (row.flagicon = document.getElementById('flagicn'+row.id))) {
       fn.flagicon = function(e) { self.command('toggle_flag', uid); };
     }
 
     // set event handler to thread expand/collapse icon
-    if (!row.depth && row.has_children && (row.expando = document.getElementById('rcmexpando'+row.uid))) {
+    if (!row.depth && row.has_children && (row.expando = document.getElementById('rcmexpando'+row.id))) {
       fn.expando = function(e) { self.expand_message_row(e, uid); };
     }
 
@@ -1811,6 +1847,7 @@
       selected: this.select_all_mode || this.message_list.in_selection(uid),
       ml: flags.ml?1:0,
       ctype: flags.ctype,
+      mbox: flags.mbox,
       // flags from plugins
       flags: flags.extra_flags
     });
@@ -1825,7 +1862,7 @@
         + (flags.deleted ? ' deleted' : '')
         + (flags.flagged ? ' flagged' : '')
         + (message.selected ? ' selected' : ''),
-      row = { cols:[], style:{}, id:'rcmrow'+uid };
+      row = { cols:[], style:{}, id:'rcmrow'+this.html_identifier(uid,true), uid:uid };
 
     // message status icons
     css_class = 'msgicon';
@@ -1851,7 +1888,7 @@
     if (this.env.threading) {
       if (message.depth) {
         // This assumes that div width is hardcoded to 15px,
-        tree += '<span id="rcmtab' + uid + '" class="branch" style="width:' + (message.depth * 15) + 'px;">&nbsp;&nbsp;</span>';
+        tree += '<span id="rcmtab' + row.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) &&
@@ -1870,7 +1907,7 @@
           message.expanded = true;
         }
 
-        expando = '<div id="rcmexpando' + uid + '" class="' + (message.expanded ? 'expanded' : 'collapsed') + '">&nbsp;&nbsp;</div>';
+        expando = '<div id="rcmexpando' + row.id + '" class="' + (message.expanded ? 'expanded' : 'collapsed') + '">&nbsp;&nbsp;</div>';
         row_class += ' thread' + (message.expanded? ' expanded' : '');
       }
 
@@ -1878,15 +1915,15 @@
         row_class += ' unroot';
     }
 
-    tree += '<span id="msgicn'+uid+'" class="'+css_class+'">&nbsp;</span>';
+    tree += '<span id="msgicn'+row.id+'" class="'+css_class+'">&nbsp;</span>';
     row.className = row_class;
 
-    // build subject link 
-    if (!bw.ie && cols.subject) {
+    // build subject link
+    if (cols.subject) {
       var action = flags.mbox == this.env.drafts_mailbox ? 'compose' : 'show';
       var uid_param = flags.mbox == this.env.drafts_mailbox ? '_draft_uid' : '_uid';
-      cols.subject = '<a href="./?_task=mail&_action='+action+'&_mbox='+urlencode(flags.mbox)+'&'+uid_param+'='+uid+'"'+
-        ' onclick="return rcube_event.cancel(event)" onmouseover="rcube_webmail.long_subject_title(this,'+(message.depth+1)+')">'+cols.subject+'</a>';
+      cols.subject = '<a href="./?_task=mail&_action='+action+'&_mbox='+urlencode(flags.mbox)+'&'+uid_param+'='+urlencode(uid)+'"'+
+        ' onclick="return rcube_event.cancel(event)" onmouseover="rcube_webmail.long_subject_title(this,'+(message.depth+1)+')"><span>'+cols.subject+'</span></a>';
     }
 
     // add each submitted col
@@ -1896,7 +1933,7 @@
 
       if (c == 'flag') {
         css_class = (flags.flagged ? 'flagged' : 'unflagged');
-        html = '<span id="flagicn'+uid+'" class="'+css_class+'">&nbsp;</span>';
+        html = '<span id="flagicn'+row.id+'" class="'+css_class+'">&nbsp;</span>';
       }
       else if (c == 'attachment') {
         if (/application\/|multipart\/(m|signed)/.test(flags.ctype))
@@ -1915,7 +1952,7 @@
           css_class = 'unreadchildren';
         else
           css_class = 'msgicon';
-        html = '<span id="statusicn'+uid+'" class="'+css_class+'">&nbsp;</span>';
+        html = '<span id="statusicn'+row.id+'" class="'+css_class+'">&nbsp;</span>';
       }
       else if (c == 'threads')
         html = expando;
@@ -2013,7 +2050,7 @@
 
     var win, target = window,
       action = preview ? 'preview': 'show',
-      url = '&_action='+action+'&_uid='+id+'&_mbox='+urlencode(this.env.mailbox);
+      url = '&_action='+action+'&_uid='+id+'&_mbox='+urlencode(this.get_message_mailbox(id));
 
     if (preview && (win = this.get_frame_window(this.env.contentframe))) {
       target = win;
@@ -2046,7 +2083,6 @@
       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);
-          ref.update_thread_root(id, 'read');
           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');
@@ -2379,7 +2415,7 @@
     }
 
     if (html)
-      $('#rcmtab'+uid).html(html);
+      $('#rcmtab'+this.html_identifier(uid, true)).html(html);
   };
 
   // update parent in a thread
@@ -2443,14 +2479,14 @@
 
         r.depth--; // move left
         // reset width and clear the content of a tab, icons will be added later
-        $('#rcmtab'+r.uid).width(r.depth * 15).html('');
+        $('#rcmtab'+r.id).width(r.depth * 15).html('');
         if (!r.depth) { // a new root
           count++; // increase roots count
           r.parent_uid = 0;
           if (r.has_children) {
             // replace 'leaf' with 'collapsed'
-            $('#rcmrow'+r.uid+' '+'.leaf:first')
-              .attr('id', 'rcmexpando' + r.uid)
+            $('#'+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); });
@@ -2552,8 +2588,11 @@
     if (!row)
       return false;
 
-    if (flag == 'unread')
+    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')
@@ -2611,10 +2650,12 @@
   };
 
   // copy selected messages to the specified mailbox
-  this.copy_messages = function(mbox)
+  this.copy_messages = function(mbox, obj)
   {
     if (mbox && typeof mbox === 'object')
       mbox = mbox.id;
+    else if (!mbox)
+      return this.folder_selector(obj, function(folder) { ref.command('copy', folder); });
 
     // exit if current or no mailbox specified
     if (!mbox || mbox == this.env.mailbox)
@@ -2631,10 +2672,12 @@
   };
 
   // move selected messages to the specified mailbox
-  this.move_messages = function(mbox)
+  this.move_messages = function(mbox, obj)
   {
     if (mbox && typeof mbox === 'object')
       mbox = mbox.id;
+    else if (!mbox)
+      return this.folder_selector(obj, function(folder) { ref.command('move', folder); });
 
     // exit if current or no mailbox specified
     if (!mbox || mbox == this.env.mailbox)
@@ -2661,20 +2704,7 @@
   // delete selected messages from the current mailbox
   this.delete_messages = function(event)
   {
-    var uid, i, len, trash = this.env.trash_mailbox,
-      list = this.message_list,
-      selection = list ? list.get_selection() : [];
-
-    // exit if no mailbox specified or if selection is empty
-    if (!this.env.uid && !selection.length)
-      return;
-
-    // also select childs of collapsed rows
-    for (i=0, len=selection.length; i<len; i++) {
-      uid = selection[i];
-      if (list.rows[uid].has_children && !list.rows[uid].expanded)
-        list.select_children(uid);
-    }
+    var list = this.message_list, trash = this.env.trash_mailbox;
 
     // if config is set to flag for deletion
     if (this.env.flag_for_deletion) {
@@ -2714,7 +2744,7 @@
     this._with_selected_messages('delete', post_data);
   };
 
-  // Send a specifc move/delete request with UIDs of all selected messages
+  // Send a specific move/delete request with UIDs of all selected messages
   // @private
   this._with_selected_messages = function(action, post_data, lock)
   {
@@ -2850,9 +2880,6 @@
       this.set_message(a_uids[i], 'unread', (flag == 'unread' ? true : false));
 
     this.http_post('mark', post_data, lock);
-
-    for (i=0; i<len; i++)
-      this.update_thread_root(a_uids[i], flag);
   };
 
   // set image to flagged or unflagged
@@ -3098,7 +3125,12 @@
 
     // close compose step in opener
     if (opener_rc && opener_rc.env.action == 'compose') {
-      setTimeout(function(){ opener.history.back(); }, 100);
+      setTimeout(function(){
+        if (opener.history.length > 1)
+          opener.history.back();
+        else
+          opener_rc.redirect(opener_rc.get_task_url('mail'));
+      }, 100);
       this.env.opened_extwin = true;
     }
 
@@ -3131,13 +3163,24 @@
 
       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 && formdata.changed && key == this.env.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 && formdata.changed && formdata.session != this.env.session_id) {
+        if (formdata.changed && formdata.session != this.env.session_id) {
           this.show_popup_dialog(
             this.get_label('restoresavedcomposedata')
               .replace('$date', new Date(formdata.changed).toLocaleString())
@@ -3161,7 +3204,7 @@
               }
             },
             {
-              text: this.get_label('cancel'),
+              text: this.get_label('ignore'),
               click: function(){
                 $(this).dialog('close');
               }
@@ -3192,7 +3235,7 @@
   {
     this.env.recipients_delimiter = this.env.recipients_separator + ' ';
 
-    obj[bw.ie || bw.safari || bw.chrome ? 'keydown' : 'keypress'](function(e) { return ref.ksearch_keydown(e, this, props); })
+    obj.keydown(function(e) { return ref.ksearch_keydown(e, this, props); })
       .attr('autocomplete', 'off');
   };
 
@@ -3387,7 +3430,7 @@
     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(insert, { format:'text' });
+      editor.selection.setContent(this.quote_html(insert).replace(/\r?\n/g, '<br/>'), { format:'text' });
     }
     // replace selection in compose textarea
     else {
@@ -3601,15 +3644,23 @@
   {
     var rc;
 
-    if (!this.env.draft_id && id && (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');
+    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');
+      }
+
+      this.env.draft_id = id;
+      $("input[name='_draft_saveid']").val(id);
+
+      // reset history of hidden iframe used for saving draft (#1489643)
+      if (window.frames['savetarget'] && window.frames['savetarget'].history) {
+        window.frames['savetarget'].history.back();
+      }
     }
 
-    this.env.draft_id = id;
-    $("input[name='_draft_saveid']").val(id);
-
+    // always remove local copy upon saving as draft
     this.remove_compose_data(this.env.compose_id);
   };
 
@@ -3671,13 +3722,20 @@
       tinyMCE.triggerSave();
     }
 
-    $('input, select, textarea', this.gui_objects.messageform).each(function(i, elem){
+    if (this.env.draft_id) {
+      formdata.draft_id = this.env.draft_id;
+    }
+    if (this.env.reply_msgid) {
+      formdata.reply_msgid = this.env.reply_msgid;
+    }
+
+    $('input, select, textarea', this.gui_objects.messageform).each(function(i, elem) {
       switch (elem.tagName.toLowerCase()) {
         case 'input':
           if (elem.type == 'button' || elem.type == 'submit' || (elem.type == 'hidden' && elem.name != '_is_html')) {
             break;
           }
-          formdata[elem.name] = elem.type != 'checkbox' || elem.checked ? elem.value : '';
+          formdata[elem.name] = elem.type != 'checkbox' || elem.checked ? $(elem).val() : '';
 
           if (formdata[elem.name] != '' && elem.type != 'hidden')
             empty = false;
@@ -3698,7 +3756,7 @@
       var index = this.local_storage_get_item('compose.index', []),
         key = this.env.compose_id;
 
-        if (index.indexOf(key) < 0) {
+        if ($.inArray(key, index) < 0) {
           index.push(key);
         }
         this.local_storage_set_item('compose.' + key, formdata, true);
@@ -3712,7 +3770,7 @@
     var ed, formdata = this.local_storage_get_item('compose.' + key, true);
 
     if (formdata && typeof formdata == 'object') {
-      $.each(formdata, function(k, value){
+      $.each(formdata, function(k, value) {
         if (k[0] == '_') {
           var elem = $("*[name='"+k+"']");
           if (elem[0] && elem[0].type == 'checkbox') {
@@ -3744,9 +3802,9 @@
     if (window.localStorage) {
       var index = this.local_storage_get_item('compose.index', []);
 
-      if (index.indexOf(key) >= 0) {
+      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; }));
+        this.local_storage_set_item('compose.index', $.grep(index, function(val,i) { return val != key; }));
       }
     }
   };
@@ -3949,7 +4007,7 @@
     if (numfiles) {
       if (this.env.max_filesize && this.env.filesizeerror && size > this.env.max_filesize) {
         this.display_message(this.env.filesizeerror, 'error');
-        return;
+        return false;
       }
 
       var frame_name = this.async_upload_form(form, action || 'upload', function(e) {
@@ -3983,11 +4041,13 @@
       if (this.env.upload_progress_time) {
         this.upload_progress_start('upload', ts);
       }
+
+      // set reference to the form object
+      this.gui_objects.attachmentform = form;
+      return true;
     }
 
-    // set reference to the form object
-    this.gui_objects.attachmentform = form;
-    return true;
+    return false;
   };
 
   // add file name to attachment list
@@ -4029,8 +4089,10 @@
 
   this.remove_from_attachment_list = function(name)
   {
-    delete this.env.attachments[name];
-    $('#'+name).remove();
+    if (this.env.attachments) {
+      delete this.env.attachments[name];
+      $('#'+name).remove();
+    }
   };
 
   this.remove_attachment = function(name)
@@ -4103,15 +4165,17 @@
       r = this.http_request(action, url, lock);
 
       this.env.qsearch = {lock: lock, request: r};
+      this.enable_command('set-listmode', this.env.threads && (this.env.search_scope || 'base') == 'base');
     }
   };
 
   // build URL params for search
-  this.search_params = function(search, filter)
+  this.search_params = function(search, filter, smods)
   {
     var n, url = {}, mods_arr = [],
       mods = this.env.search_mods,
-      mbox = this.env.mailbox;
+      scope = this.env.search_scope || 'base',
+      mbox = scope == 'all' ? '*' : this.env.mailbox;
 
     if (!filter && this.gui_objects.search_filter)
       filter = this.gui_objects.search_filter.value;
@@ -4125,17 +4189,19 @@
     if (search) {
       url._q = search;
 
-      if (mods && this.message_list)
-        mods = mods[mbox] ? mods[mbox] : mods['*'];
+      if (!smods && mods && this.message_list)
+        smods = mods[mbox] || mods['*'];
 
-      if (mods) {
-        for (n in mods)
+      if (smods) {
+        for (n in smods)
           mods_arr.push(n);
         url._headers = mods_arr.join(',');
       }
     }
 
-    if (mbox)
+    if (scope)
+      url._scope = scope;
+    if (mbox && scope != 'all')
       url._mbox = mbox;
 
     return url;
@@ -4153,6 +4219,8 @@
     this.env.qsearch = null;
     this.env.search_request = null;
     this.env.search_id = null;
+
+    this.enable_command('set-listmode', this.env.threads);
   };
 
   this.sent_successfully = function(type, msg, folders)
@@ -4197,7 +4265,7 @@
       case 38:  // arrow up
       case 40:  // arrow down
         if (!this.ksearch_visible())
-          break;
+          return;
 
         var dir = key==38 ? 1 : 0;
 
@@ -4232,8 +4300,7 @@
 
       case 37:  // left
       case 39:  // right
-        if (mod != SHIFT_KEY)
-          return;
+        return;
     }
 
     // start timer
@@ -4279,10 +4346,14 @@
     this.ksearch_destroy();
 
     // insert all members of a group
-    if (typeof this.env.contacts[id] === 'object' && this.env.contacts[id].id) {
+    if (typeof this.env.contacts[id] === 'object' && this.env.contacts[id].type == 'group') {
       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);
+    }
+    else if (typeof this.env.contacts[id] === 'object' && this.env.contacts[id].name) {
+      insert = this.env.contacts[id].name + this.env.recipients_delimiter;
+      trigger = true;
     }
     else if (typeof this.env.contacts[id] === 'string') {
       insert = this.env.contacts[id] + this.env.recipients_delimiter;
@@ -4297,7 +4368,7 @@
       this.ksearch_input.setSelectionRange(cpos, cpos);
 
     if (trigger) {
-      this.triggerEvent('autocomplete_insert', { field:this.ksearch_input, insert:insert });
+      this.triggerEvent('autocomplete_insert', { field:this.ksearch_input, insert:insert, data:this.env.contacts[id] });
       this.compose_type_activity++;
     }
   };
@@ -4328,7 +4399,7 @@
       p = inp_value.lastIndexOf(this.env.recipients_separator, cpos-1),
       q = inp_value.substring(p+1, cpos),
       min = this.env.autocomplete_min_length,
-      ac = this.ksearch_data;
+      data = this.ksearch_data;
 
     // trim query string
     q = $.trim(q);
@@ -4355,34 +4426,26 @@
       return;
 
     // ...new search value contains old one and previous search was not finished or its result was empty
-    if (old_value && old_value.length && q.startsWith(old_value) && (!ac || ac.num <= 0) && this.env.contacts && !this.env.contacts.length)
+    if (old_value && old_value.length && q.startsWith(old_value) && (!data || data.num <= 0) && this.env.contacts && !this.env.contacts.length)
       return;
 
-    var i, lock, source, xhr, reqid = new Date().getTime(),
-      post_data = {_search: q, _id: reqid},
-      threads = props && props.threads ? props.threads : 1,
-      sources = props && props.sources ? props.sources : [],
-      action = props && props.action ? props.action : 'mail/autocomplete';
+    var sources = props && props.sources ? props.sources : [''];
+    var reqid = this.multi_thread_http_request({
+      items: sources,
+      threads: props && props.threads ? props.threads : 1,
+      action:  props && props.action ? props.action : 'mail/autocomplete',
+      postdata: { _search:q, _source:'%s' },
+      lock: this.display_message(this.get_label('searching'), 'loading')
+    });
 
-    this.ksearch_data = {id: reqid, sources: sources.slice(), action: action,
-      locks: [], requests: [], num: sources.length};
-
-    for (i=0; i<threads; i++) {
-      source = this.ksearch_data.sources.shift();
-      if (threads > 1 && source === undefined)
-        break;
-
-      post_data._source = source ? source : '';
-      lock = this.display_message(this.get_label('searching'), 'loading');
-      xhr = this.http_post(action, post_data, lock);
-
-      this.ksearch_data.locks.push(lock);
-      this.ksearch_data.requests.push(xhr);
-    }
+    this.ksearch_data = { id:reqid, sources:sources.slice(), num:sources.length };
   };
 
   this.ksearch_query_results = function(results, search, reqid)
   {
+    // trigger multi-thread http response callback
+    this.multi_thread_http_response(results, reqid);
+
     // search stopped in meantime?
     if (!this.ksearch_value)
       return;
@@ -4392,9 +4455,8 @@
       return;
 
     // display search results
-    var i, len, ul, li, text, init,
+    var i, len, ul, li, text, type, init,
       value = this.ksearch_value,
-      data = this.ksearch_data,
       maxlen = this.env.autocomplete_max ? this.env.autocomplete_max : 15;
 
     // create results pane if not present
@@ -4426,11 +4488,13 @@
     if (results && (len = results.length)) {
       for (i=0; i < len && maxlen > 0; i++) {
         text = typeof results[i] === 'object' ? results[i].name : results[i];
+        type = typeof results[i] === 'object' ? results[i].type : '';
         li = document.createElement('LI');
         li.innerHTML = text.replace(new RegExp('('+RegExp.escape(value)+')', 'ig'), '##$1%%').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/##([^%]+)%%/g, '<b>$1</b>');
         li.onmouseover = function(){ ref.ksearch_select(this); };
         li.onmouseup = function(){ ref.ksearch_click(this) };
         li._rcm_id = this.env.contacts.length + i;
+        if (type) li.className = type;
         ul.appendChild(li);
         maxlen -= 1;
       }
@@ -4448,27 +4512,8 @@
     if (len)
       this.env.contacts = this.env.contacts.concat(results);
 
-    // run next parallel search
-    if (data.id == reqid) {
-      data.num--;
-      if (maxlen > 0 && data.sources.length) {
-        var lock, xhr, source = data.sources.shift(), post_data;
-        if (source) {
-          post_data = {_search: value, _id: reqid, _source: source};
-          lock = this.display_message(this.get_label('searching'), 'loading');
-          xhr = this.http_post(data.action, post_data, lock);
-
-          this.ksearch_data.locks.push(lock);
-          this.ksearch_data.requests.push(xhr);
-        }
-      }
-      else if (!maxlen) {
-        if (!this.ksearch_msg)
-          this.ksearch_msg = this.display_message(this.get_label('autocompletemore'));
-        // abort pending searches
-        this.ksearch_abort();
-      }
-    }
+    if (this.ksearch_data.id == reqid)
+      this.ksearch_data.num--;
   };
 
   this.ksearch_click = function(node)
@@ -4503,7 +4548,8 @@
   // Clears autocomplete data/requests
   this.ksearch_destroy = function()
   {
-    this.ksearch_abort();
+    if (this.ksearch_data)
+      this.multi_thread_request_abort(this.ksearch_data.id);
 
     if (this.ksearch_info)
       this.hide_message(this.ksearch_info);
@@ -4514,18 +4560,6 @@
     this.ksearch_data = null;
     this.ksearch_info = null;
     this.ksearch_msg = null;
-  }
-
-  // Aborts pending autocomplete requests
-  this.ksearch_abort = function()
-  {
-    var i, len, ac = this.ksearch_data;
-
-    if (!ac)
-      return;
-
-    for (i=0, len=ac.locks.length; i<len; i++)
-      this.abort_request({request: ac.requests[i], lock: ac.locks[i]});
   };
 
 
@@ -5037,6 +5071,7 @@
   {
     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];
       delete this.env.contactgroups[key];
     }
@@ -5534,9 +5569,8 @@
       target = win;
     }
 
-    if (action && (id || action == 'add-identity')) {
-      this.set_busy(true);
-      this.location_href(url, target);
+    if (id || action == 'add-identity') {
+      this.location_href(url, target, true);
     }
 
     return true;
@@ -5615,14 +5649,15 @@
 
     this.subscription_list = new rcube_list_widget(this.gui_objects.subscriptionlist,
       {multiselect:false, draggable:true, keyboard:false, toggleselect:true});
-    this.subscription_list.addEventListener('select', function(o){ p.subscription_select(o); });
-    this.subscription_list.addEventListener('dragstart', function(o){ p.drag_active = true; });
-    this.subscription_list.addEventListener('dragend', function(o){ p.subscription_move_folder(o); });
-    this.subscription_list.row_init = function (row) {
-      row.obj.onmouseover = function() { p.focus_subscription(row.id); };
-      row.obj.onmouseout = function() { p.unfocus_subscription(row.id); };
-    };
-    this.subscription_list.init();
+    this.subscription_list
+      .addEventListener('select', function(o){ p.subscription_select(o); })
+      .addEventListener('dragstart', function(o){ p.drag_active = true; })
+      .addEventListener('dragend', function(o){ p.subscription_move_folder(o); })
+      .addEventListener('initrow', function (row) {
+        row.obj.onmouseover = function() { p.focus_subscription(row.id); };
+        row.obj.onmouseout = function() { p.unfocus_subscription(row.id); };
+      })
+      .init();
 
     $('#mailboxroot')
       .mouseover(function(){ p.focus_subscription(this.id); })
@@ -5722,7 +5757,7 @@
     if (!this.gui_objects.subscriptionlist)
       return false;
 
-    var row, n, i, tmp, tmp_name, folders, rowid, list = [], slist = [],
+    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());
@@ -5737,8 +5772,7 @@
     row = $(refrow).clone(true);
 
     // set ID, reset css class
-    row.attr('id', id);
-    row.attr('class', class_name);
+    row.attr({id: id, 'class': class_name});
 
     // set folder name
     row.find('td:first').html(display_name);
@@ -5748,12 +5782,27 @@
       .prop({checked: subscribed ? true : false, disabled: is_protected ? true : false});
 
     // add to folder/row-ID map
-    this.env.subscriptionrows[id] = [name, display_name, 0];
+    this.env.subscriptionrows[id] = [name, display_name, false];
 
-    // sort folders, to find a place where to insert the row
-    folders = [];
-    $.each(this.env.subscriptionrows, function(k,v){ folders.push(v) });
-    folders.sort(function(a,b){ return a[0] < b[0] ? -1 : (a[0] > b[0] ? 1 : 0) });
+    // 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);
+
+    $.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);
+    });
+
+    folders.sort(function(a, b) {
+      var len = a.length - 1; n1 = a[len], n2 = b[len];
+      return n1 < n2 ? -1 : 1;
+    });
 
     for (n in folders) {
       // protected folder
@@ -5808,8 +5857,11 @@
   // 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)
   {
-    if (!this.gui_objects.subscriptionlist)
+    if (!this.gui_objects.subscriptionlist) {
+      if (this.is_framed)
+        return parent.rcmail.replace_folder_row(oldfolder, newfolder, 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],
@@ -5819,6 +5871,13 @@
       subscribed = $('input[name="_subscribed[]"]', $('#'+id)).prop('checked'),
       // find subfolders of renamed folder
       list = this.get_subfolders(oldfolder);
+
+    // no renaming, only update class_name
+    if (oldfolder == newfolder) {
+      $('#'+id).attr('class', class_name || '');
+      this.subscription_list.focus();
+      return;
+    }
 
     // replace an existing table row
     this._remove_folder_row(id);
@@ -6057,7 +6116,10 @@
       // disable/enable input buttons
       if (button.type == 'input') {
         button.status = state;
-        obj.disabled = !state;
+        obj.disabled = state == 'pas';
+      }
+      else if (button.type == 'uibutton') {
+        $(obj).button('option', 'disabled', state == 'pas');
       }
     }
   };
@@ -6189,7 +6251,7 @@
     this.triggerEvent('message', { message:msg, type:type, timeout:timeout, object:obj });
 
     if (timeout > 0)
-      setTimeout(function() { ref.hide_message(id, type == 'loading'); }, timeout);
+      setTimeout(function() { ref.hide_message(id, type != 'loading'); }, timeout);
     return id;
   };
 
@@ -6273,7 +6335,7 @@
   {
     // forward call to parent window
     if (this.is_framed()) {
-      return parent.rcmail.show_popup_dialog(html, title, buttons);
+      return parent.rcmail.show_popup_dialog(html, title, buttons, options);
     }
 
     var popup = $('<div class="popup">')
@@ -6293,7 +6355,7 @@
 
     popup.dialog('option', {
       height: Math.min(h - 40, height + 75 + (buttons ? 50 : 0)),
-      width: Math.min(w - 20, width + 20)
+      width: Math.min(w - 20, width + 36)
     });
 
     return popup;
@@ -6327,12 +6389,14 @@
   this.mark_folder = function(name, class_name, prefix, encode)
   {
     $(this.get_folder_li(name, prefix, encode)).addClass(class_name);
+    this.triggerEvent('markfolder', {folder: name, mark: class_name, status: true});
   };
 
   // adds a class to selected folder
   this.unmark_folder = function(name, class_name, prefix, encode)
   {
     $(this.get_folder_li(name, prefix, encode)).removeClass(class_name);
+    this.triggerEvent('markfolder', {folder: name, mark: class_name, status: false});
   };
 
   // helper method to find a folder list item
@@ -6402,8 +6466,10 @@
     if ((n = $.inArray('status', this.env.coltypes)) >= 0)
       this.env.status_col = n;
 
-    if (list)
+    if (list) {
+      list.hide_column('folder', !(this.env.search_request || this.env.search_id) || this.env.search_scope == 'base');
       list.init_header();
+    }
   };
 
   // replace content of row count display
@@ -6434,6 +6500,12 @@
 
     this.triggerEvent('setquota', content);
     this.env.quota_content = content;
+  };
+
+  // update trash folder state
+  this.set_trash_count = function(count)
+  {
+    this[(count ? 'un' : '') + 'mark_folder'](this.env.trash_mailbox, 'empty', '', true);
   };
 
   // update the mailboxlist
@@ -6540,6 +6612,113 @@
     $(elem).removeClass('hide-headers').addClass('show-headers');
     $(this.gui_objects.all_headers_row).hide();
     elem.onclick = function() { rcmail.command('show-headers', '', elem); };
+  };
+
+  // create folder selector popup, position and display it
+  this.folder_selector = function(obj, callback)
+  {
+    var container = this.folder_selector_element;
+
+    if (!container) {
+      var rows = [],
+        delim = this.env.delimiter,
+        ul = $('<ul class="toolbarmenu iconized">'),
+        li = document.createElement('li'),
+        link = document.createElement('a'),
+        span = document.createElement('span');
+
+      container = $('<div id="folder-selector" class="popupmenu"></div>');
+      link.href = '#';
+      link.className = 'icon';
+
+      // loop over sorted folders list
+      $.each(this.env.mailboxes_list, function() {
+        var tmp, n = 0, s = 0,
+          folder = ref.env.mailboxes[this],
+          id = folder.id,
+          a = link.cloneNode(false), row = li.cloneNode(false);
+
+        if (folder.virtual)
+          a.className += ' virtual';
+        else {
+          a.className += ' active';
+          a.onclick = function() { container.hide().data('callback')(folder.id); };
+        }
+
+        if (folder['class'])
+          a.className += ' ' + folder['class'];
+
+        // calculate/set indentation level
+        while ((s = id.indexOf(delim, s)) >= 0) {
+          n++; s++;
+        }
+        a.style.paddingLeft =  n ? (n * 16) + 'px' : 0;
+
+        // add folder name element
+        tmp = span.cloneNode(false);
+        $(tmp).text(folder.name);
+        a.appendChild(tmp);
+
+        row.appendChild(a);
+        rows.push(row);
+      });
+
+      ul.append(rows).appendTo(container);
+
+      // temporarily show element to calculate its size
+      container.css({left: '-1000px', top: '-1000px'})
+        .appendTo($('body')).show();
+
+      // set max-height if the list is long
+      if (rows.length > 10)
+        container.css('max-height', $('li', container)[0].offsetHeight * 10 + 9)
+
+      // 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;
+    }
+
+    // position menu on the screen
+    this.element_position(container, obj);
+
+    container.show().data('callback', callback);
+  };
+
+  // position a menu element on the screen in relation to other object
+  this.element_position = function(element, obj)
+  {
+    var obj = $(obj), win = $(window),
+      width = obj.outerWidth(),
+      height = obj.outerHeight(),
+      menu_pos = obj.data('menu-pos'),
+      win_height = win.height(),
+      elem_height = $(element).height(),
+      elem_width = $(element).width(),
+      pos = obj.offset(),
+      top = pos.top,
+      left = pos.left + width;
+
+    if (menu_pos == 'bottom') {
+      top += height;
+      left -= width;
+    }
+    else
+      left -= 5;
+
+    if (top + elem_height > win_height) {
+      top -= elem_height - height;
+      if (top < 0)
+        top = Math.max(0, (win_height - elem_height) / 2);
+    }
+
+    if (left + elem_width > win.width())
+      left -= elem_width + width;
+
+    element.css({left: left + 'px', top: top + 'px'});
   };
 
 
@@ -6811,6 +6990,16 @@
 
       case 'refresh':
       case 'check-recent':
+        // update message flags
+        $.each(this.env.recent_flags || {}, function(uid, flags) {
+          ref.set_message(uid, 'deleted', flags.deleted);
+          ref.set_message(uid, 'replied', flags.answered);
+          ref.set_message(uid, 'unread', !flags.seen);
+          ref.set_message(uid, 'forwarded', flags.forwarded);
+          ref.set_message(uid, 'flagged', flags.flagged);
+        });
+        delete this.env.recent_flags;
+
       case 'getunread':
       case 'search':
         this.env.qsearch = null;
@@ -6823,7 +7012,6 @@
 
           if ((response.action == 'list' || response.action == 'search') && this.message_list) {
             this.msglist_select(this.message_list);
-            this.message_list.resize();
             this.triggerEvent('listupdate', { folder:this.env.mailbox, rowcount:this.message_list.rowcount });
           }
         }
@@ -6834,7 +7022,6 @@
             this.enable_command('search-create', this.env.source == '');
             this.enable_command('search-delete', this.env.search_id);
             this.update_group_commands();
-            this.contact_list.resize();
             this.triggerEvent('listupdate', { folder:this.env.source, rowcount:this.contact_list.rowcount });
           }
         }
@@ -6868,7 +7055,7 @@
     else if (status == 'timeout')
       this.display_message(this.get_label('requesttimedout'), 'error');
     else if (request.status == 0 && status != 'abort')
-      this.display_message(this.get_label('servererror') + ' (No connection)', 'error');
+      this.display_message(this.get_label('connerror'), 'error');
 
     // redirect to url specified in location header if not empty
     var location_url = request.getResponseHeader("Location");
@@ -6909,6 +7096,130 @@
 
     if (this.submit_timer)
       clearTimeout(this.submit_timer);
+  };
+
+  /**
+   Send multi-threaded parallel HTTP requests to the server for a list if items.
+   The string '%' in either a GET query or POST parameters will be replaced with the respective item value.
+   This is the argument object expected: {
+       items: ['foo','bar','gna'],      // list of items to send requests for
+       action: 'task/some-action',      // Roudncube action to call
+       query: { q:'%s' },               // GET query parameters
+       postdata: { source:'%s' },       // POST data (sends a POST request if present)
+       threads: 3,                      // max. number of concurrent requests
+       onresponse: function(data){ },   // Callback function called for every response received from server
+       whendone: function(alldata){ }   // Callback function called when all requests have been sent
+   }
+  */
+  this.multi_thread_http_request = function(prop)
+  {
+    var reqid = new Date().getTime();
+
+    prop.reqid = reqid;
+    prop.running = 0;
+    prop.requests = [];
+    prop.result = [];
+    prop._items = $.extend([], prop.items);  // copy items
+
+    if (!prop.lock)
+      prop.lock = this.display_message(this.get_label('loading'), 'loading');
+
+    // add the request arguments to the jobs pool
+    this.http_request_jobs[reqid] = prop;
+
+    // start n threads
+    var item, threads = prop.threads || 1;
+    for (var i=0; i < threads; i++) {
+      item = prop._items.shift();
+      if (item === undefined)
+        break;
+
+      prop.running++;
+      prop.requests.push(this.multi_thread_send_request(prop, item));
+    }
+
+    return reqid;
+  };
+
+  // helper method to send an HTTP request with the given iterator value
+  this.multi_thread_send_request = function(prop, item)
+  {
+    var postdata, query;
+
+    // replace %s in post data
+    if (prop.postdata) {
+      postdata = {};
+      for (var k in prop.postdata) {
+        postdata[k] = String(prop.postdata[k]).replace('%s', item);
+      }
+      postdata._reqid = prop.reqid;
+    }
+    // replace %s in query
+    else if (typeof prop.query == 'string') {
+      query = prop.query.replace('%s', item);
+      query += '&_reqid=' + prop.reqid;
+    }
+    else if (typeof prop.query == 'object' && prop.query) {
+      query = {};
+      for (var k in prop.query) {
+        query[k] = String(prop.query[k]).replace('%s', item);
+      }
+      query._reqid = prop.reqid;
+    }
+
+    // send HTTP GET or POST request
+    return postdata ? this.http_post(prop.action, postdata) : this.http_request(prop.action, query);
+  };
+
+  // callback function for multi-threaded http responses
+  this.multi_thread_http_response = function(data, reqid)
+  {
+    var prop = this.http_request_jobs[reqid];
+    if (!prop || prop.running <= 0 || prop.cancelled)
+      return;
+
+    prop.running--;
+
+    // trigger response callback
+    if (prop.onresponse && typeof prop.onresponse == 'function') {
+      prop.onresponse(data);
+    }
+
+    prop.result = $.extend(prop.result, data);
+
+    // send next request if prop.items is not yet empty
+    var item = prop._items.shift();
+    if (item !== undefined) {
+      prop.running++;
+      prop.requests.push(this.multi_thread_send_request(prop, item));
+    }
+    // trigger whendone callback and mark this request as done
+    else if (prop.running == 0) {
+      if (prop.whendone && typeof prop.whendone == 'function') {
+        prop.whendone(prop.result);
+      }
+
+      this.set_busy(false, '', prop.lock);
+
+      // remove from this.http_request_jobs pool
+      delete this.http_request_jobs[reqid];
+    }
+  };
+
+  // abort a running multi-thread request with the given identifier
+  this.multi_thread_request_abort = function(reqid)
+  {
+    var prop = this.http_request_jobs[reqid];
+    if (prop) {
+      for (var i=0; prop.running > 0 && i < prop.requests.length; i++) {
+        if (prop.requests[i].abort)
+          prop.requests[i].abort();
+      }
+
+      prop.running = 0;
+      prop.cancelled = true;
+      this.set_busy(false, '', prop.lock);
+    }
   };
 
   // post the given form to a hidden iframe
@@ -7136,12 +7447,17 @@
 
     if (this.gui_objects.mailboxlist)
       params._folderlist = 1;
-    if (this.gui_objects.messagelist)
-      params._list = 1;
     if (this.gui_objects.quotadisplay)
       params._quota = 1;
     if (this.env.search_request)
       params._search = this.env.search_request;
+
+    if (this.gui_objects.messagelist) {
+      params._list = 1;
+
+      // message uids for flag updates check
+      params._uids = $.map(this.message_list.rows, function(row, uid) { return uid; }).join(',');
+    }
 
     return params;
   };
@@ -7182,6 +7498,13 @@
   {
     return this.env.cid ? this.env.cid : (this.contact_list ? this.contact_list.get_single_selection() : null);
   };
+
+  // get the IMP mailbox of the message with the given UID
+  this.get_message_mailbox = function(uid)
+  {
+    var msg = this.env.messages ? this.env.messages[uid] : {};
+    return msg.mbox || this.env.mailbox;
+  }
 
   // gets cursor position
   this.get_caret_pos = function(obj)
@@ -7310,20 +7633,28 @@
     try {
       window.navigator.registerProtocolHandler('mailto', this.mailto_handler_uri(), name);
     }
-    catch(e) {};
+    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')
-      || ((typeof nav.isProtocolHandlerRegistered == 'function')
-        && nav.isProtocolHandlerRegistered('mailto', this.mailto_handler_uri()) == 'registered')
-    )
-      $(elem).addClass('disabled');
-    else
-      $(elem).click(function() { rcmail.register_protocol_handler(name); return false; });
+    if (!nav || (typeof nav.registerProtocolHandler != 'function')) {
+      $(elem).addClass('disabled').click(function(){ return false; });
+    }
+    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; });
+      }
+    }
   };
 
   // Checks browser capabilities eg. PDF support, TIF support
@@ -7425,11 +7756,20 @@
     setCookie(name, value, expires, this.env.cookie_path, this.env.cookie_domain, this.env.cookie_secure);
   };
 
+  this.get_local_storage_prefix = function()
+  {
+    if (!this.local_storage_prefix)
+      this.local_storage_prefix = 'roundcube.' + (this.env.user_id || 'anonymous') + '.';
+
+    return this.local_storage_prefix;
+  };
+
   // wrapper for localStorage.getItem(key)
   this.local_storage_get_item = function(key, deflt, encrypted)
   {
+
     // TODO: add encryption
-    var item = localStorage.getItem(this.local_storage_prefix + key);
+    var item = localStorage.getItem(this.get_local_storage_prefix() + key);
     return item !== null ? JSON.parse(item) : (deflt || null);
   };
 
@@ -7437,13 +7777,13 @@
   this.local_storage_set_item = function(key, data, encrypted)
   {
     // TODO: add encryption
-    return localStorage.setItem(this.local_storage_prefix + key, JSON.stringify(data));
+    return localStorage.setItem(this.get_local_storage_prefix() + key, JSON.stringify(data));
   };
 
   // wrapper for localStorage.removeItem(key)
   this.local_storage_remove_item = function(key)
   {
-    return localStorage.removeItem(this.local_storage_prefix + key);
+    return localStorage.removeItem(this.get_local_storage_prefix() + key);
   };
 
 }  // end object rcube_webmail

--
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