rc2: program/js/app.js comparison

comparison program/js/app.js @ 0:4681f974d28b

vanilla 1.3.3 distro, I hope

author	Charlie Root
date	Thu, 04 Jan 2018 15:52:31 -0500
parents
children	0cac1d1e799f

comparison

equal deleted inserted replaced

--1:000000000000
+:4681f974d28b
+/**
+* Roundcube Webmail Client Script
+*
+* This file is part of the Roundcube Webmail client
+*
+* @licstart  The following is the entire license notice for the
+* JavaScript code in this file.
+*
+* Copyright (C) 2005-2015, The Roundcube Dev Team
+* Copyright (C) 2011-2015, Kolab Systems AG
+*
+* The JavaScript code in this page is free software: you can
+* redistribute it and/or modify it under the terms of the GNU
+* General Public License (GNU GPL) as published by the Free Software
+* Foundation, either version 3 of the License, or (at your option)
+* any later version.  The code is distributed WITHOUT ANY WARRANTY;
+* without even the implied warranty of MERCHANTABILITY or FITNESS
+* FOR A PARTICULAR PURPOSE.  See the GNU GPL for more details.
+*
+* As additional permission under GNU GPL version 3 section 7, you
+* may distribute non-source (e.g., minimized or compacted) forms of
+* that code without the copy of the GNU GPL normally required by
+* section 4, provided you include this license notice and a URL
+* through which recipients can access the Corresponding Source.
+*
+* @licend  The above is the entire license notice
+* for the JavaScript code in this file.
+*
+* @author Thomas Bruederli <roundcube@gmail.com>
+* @author Aleksander 'A.L.E.C' Machniak <alec@alec.pl>
+* @author Charles McNulty <charles@charlesmcnulty.com>
+*
+* @requires jquery.js, common.js, list.js
+*/
+function rcube_webmail()
+{
+this.labels = {};
+this.buttons = {};
+this.buttons_sel = {};
+this.gui_objects = {};
+this.gui_containers = {};
+this.commands = {};
+this.command_handlers = {};
+this.onloads = [];
+this.messages = {};
+this.group2expand = {};
+this.http_request_jobs = {};
+this.menu_stack = [];
+// webmail client settings
+this.dblclick_time = 500;
+this.message_time = 5000;
+this.preview_delay_select = 400;
+this.preview_delay_click  = 60;
+this.identifier_expr = /[^0-9a-z_-]/gi;
+// environment defaults
+this.env = {
+request_timeout: 180,  // seconds
+draft_autosave: 0,     // seconds
+comm_path: './',
+recipients_separator: ',',
+recipients_delimiter: ', ',
+popup_width: 1150,
+popup_width_small: 900
+};
+// create protected reference to myself
+this.ref = 'rcmail';
+var ref = this;
+// set jQuery ajax options
+$.ajaxSetup({
+cache: false,
+timeout: this.env.request_timeout * 1000,
+error: function(request, status, err){ ref.http_error(request, status, err); },
+beforeSend: function(xmlhttp){ xmlhttp.setRequestHeader('X-Roundcube-Request', ref.env.request_token); }
+});
+// unload fix
+$(window).on('beforeunload', function() { ref.unload = true; });
+// set environment variable(s)
+this.set_env = function(p, value)
+{
+if (p != null && typeof p === 'object' && !value)
+for (var n in p)
+this.env[n] = p[n];
+else
+this.env[p] = value;
+};
+// add a localized label to the client environment
+this.add_label = function(p, value)
+{
+if (typeof p == 'string')
+this.labels[p] = value;
+else if (typeof p == 'object')
+$.extend(this.labels, p);
+};
+// add a button to the button list
+this.register_button = function(command, id, type, act, sel, over)
+{
+var button_prop = {id:id, type:type};
+if (act) button_prop.act = act;
+if (sel) button_prop.sel = sel;
+if (over) button_prop.over = over;
+if (!this.buttons[command])
+this.buttons[command] = [];
+this.buttons[command].push(button_prop);
+if (this.loaded)
+init_button(command, button_prop);
+};
+// register a specific gui object
+this.gui_object = function(name, id)
+{
+this.gui_objects[name] = this.loaded ? rcube_find_object(id) : id;
+};
+// register a container object
+this.gui_container = function(name, id)
+{
+this.gui_containers[name] = id;
+};
+// add a GUI element (html node) to a specified container
+this.add_element = function(elm, container)
+{
+if (this.gui_containers[container] && this.gui_containers[container].jquery)
+this.gui_containers[container].append(elm);
+};
+// register an external handler for a certain command
+this.register_command = function(command, callback, enable)
+{
+this.command_handlers[command] = callback;
+if (enable)
+this.enable_command(command, true);
+};
+// execute the given script on load
+this.add_onload = function(f)
+{
+this.onloads.push(f);
+};
+// initialize webmail client
+this.init = function()
+{
+var n;
+this.task = this.env.task;
+// check browser capabilities (never use version checks here)
+if (this.env.server_error != 409 && (!bw.dom || !bw.xmlhttp_test())) {
+this.goto_url('error', '_code=0x199');
+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] = $('#'+this.gui_containers[n]);
+// find all registered gui objects
+for (n in this.gui_objects)
+this.gui_objects[n] = rcube_find_object(this.gui_objects[n]);
+// clickjacking protection
+if (n = this.env.x_frame_options) {
+try {
+// bust frame if not allowed
+if (n.toLowerCase() == 'deny' && top.location.href != self.location.href)
+top.location.href = self.location.href;
+else if (/^allow-from[\s\t]+(.+)$/i.test(n) && RegExp.$1.indexOf(top.location.origin) != 0)
+throw 1;
+else if (top.location.hostname != self.location.hostname)
+throw 1;
+} catch (e) {
+// possible clickjacking attack: disable all form elements
+$('form').each(function(){ ref.lock_form(this, true); });
+this.display_message("Blocked: possible clickjacking attack!", 'error');
+return;
+}
+}
+// init registered buttons
+this.init_buttons();
+// tell parent window that this frame is loaded
+if (this.is_framed()) {
+parent.rcmail.set_busy(false, null, parent.rcmail.env.frame_lock);
+parent.rcmail.env.frame_lock = null;
+}
+// enable general commands
+this.enable_command('close', 'logout', 'mail', 'addressbook', 'settings', 'save-pref',
+'compose', 'undo', 'about', 'switch-task', 'menu-open', 'menu-close', 'menu-save', true);
+// set active task button
+this.set_button(this.task, 'sel');
+if (this.env.permaurl)
+this.enable_command('permaurl', 'extwin', true);
+switch (this.task) {
+case 'mail':
+// enable mail commands
+this.enable_command('list', 'checkmail', 'add-contact', 'search', 'reset-search', 'collapse-folder', 'import-messages', true);
+if (this.gui_objects.messagelist) {
+this.env.widescreen_list_template = [
+{className: 'threads', cells: ['threads']},
+{className: 'subject', cells: ['fromto', 'date', 'status', 'subject']},
+{className: 'flags', cells: ['flag', 'attachment']}
+];
+this.message_list = new rcube_list_widget(this.gui_objects.messagelist, {
+multiselect:true, multiexpand:true, draggable:true, keyboard:true,
+column_movable:this.env.col_movable, dblclick_time:this.dblclick_time
+});
+this.message_list
+.addEventListener('initrow', function(o) { ref.init_message_row(o); })
+.addEventListener('dblclick', function(o) { ref.msglist_dbl_click(o); })
+.addEventListener('keypress', function(o) { ref.msglist_keypress(o); })
+.addEventListener('select', function(o) { ref.msglist_select(o); })
+.addEventListener('dragstart', function(o) { ref.drag_start(o); })
+.addEventListener('dragmove', function(e) { ref.drag_move(e); })
+.addEventListener('dragend', function(e) { ref.drag_end(e); })
+.addEventListener('expandcollapse', function(o) { ref.msglist_expand(o); })
+.addEventListener('column_replace', function(o) { ref.msglist_set_coltypes(o); })
+.addEventListener('listupdate', function(o) { ref.triggerEvent('listupdate', o); })
+.init();
+// TODO: this should go into the list-widget code
+$(this.message_list.thead).on('click', 'a.sortcol', function(e){
+return ref.command('sort', $(this).attr('rel'), this);
+});
+this.enable_command('toggle_status', 'toggle_flag', 'sort', true);
+this.enable_command('set-listmode', this.env.threads && !this.is_multifolder_listing());
+// load messages
+this.command('list');
+$(this.gui_objects.qsearchbox).val(this.env.search_text).focusin(function() { ref.message_list.blur(); });
+}
+this.set_button_titles();
+this.env.message_commands = ['show', 'reply', 'reply-all', 'reply-list',
+'move', 'copy', 'delete', 'open', 'mark', 'edit', 'viewsource',
+'print', 'load-attachment', 'download-attachment', 'show-headers', 'hide-headers', 'download',
+'forward', 'forward-inline', 'forward-attachment', 'change-format'];
+if (this.env.action == 'show' || this.env.action == 'preview') {
+this.enable_command(this.env.message_commands, this.env.uid);
+this.enable_command('reply-list', this.env.list_post);
+if (this.env.action == 'show') {
+this.http_request('pagenav', {_uid: this.env.uid, _mbox: this.env.mailbox, _search: this.env.search_request},
+this.display_message('', 'loading'));
+}
+if (this.env.mail_read_time > 0)
+setTimeout(function() {
+ref.http_post('mark', {_uid: ref.env.uid, _flag: 'read', _mbox: ref.env.mailbox, _quiet: 1});
+}, this.env.mail_read_time * 1000);
+if (this.env.blockedobjects) {
+if (this.gui_objects.remoteobjectsmsg)
+this.gui_objects.remoteobjectsmsg.style.display = 'block';
+this.enable_command('load-images', 'always-load', true);
+}
+// make preview/message frame visible
+if (this.env.action == 'preview' && this.is_framed()) {
+this.enable_command('compose', 'add-contact', false);
+parent.rcmail.show_contentframe(true);
+}
+// initialize drag-n-drop on attachments, so they can e.g.
+// be dropped into mail compose attachments in another window
+if (this.gui_objects.attachments)
+$('li > a', this.gui_objects.attachments).not('.drop').on('dragstart', function(e) {
+var n, href = this.href, dt = e.originalEvent.dataTransfer;
+if (dt) {
+// inject username to the uri
+href = href.replace(/^https?:\/\//, function(m) { return m + urlencode(ref.env.username) + '@'});
+// cleanup the node to get filename without the size test
+n = $(this).clone();
+n.children().remove();
+dt.setData('roundcube-uri', href);
+dt.setData('roundcube-name', $.trim(n.text()));
+}
+});
+}
+else if (this.env.action == 'compose') {
+this.env.address_group_stack = [];
+this.env.compose_commands = ['send-attachment', 'remove-attachment', 'send', 'cancel',
+'toggle-editor', 'list-addresses', 'pushgroup', 'search', 'reset-search', 'extwin',
+'insert-response', 'save-response', 'menu-open', 'menu-close', 'load-attachment',
+'download-attachment', 'open-attachment', 'rename-attachment'];
+if (this.env.drafts_mailbox)
+this.env.compose_commands.push('savedraft')
+this.enable_command(this.env.compose_commands, 'identities', 'responses', true);
+// add more commands (not enabled)
+$.merge(this.env.compose_commands, ['add-recipient', 'firstpage', 'previouspage', 'nextpage', 'lastpage']);
+if (window.googie) {
+this.env.editor_config.spellchecker = googie;
+this.env.editor_config.spellcheck_observer = function(s) { ref.spellcheck_state(); };
+this.env.compose_commands.push('spellcheck')
+this.enable_command('spellcheck', true);
+}
+// initialize HTML editor
+this.editor_init(this.env.editor_config, this.env.composebody);
+// init canned response functions
+if (this.gui_objects.responseslist) {
+$('a.insertresponse', this.gui_objects.responseslist)
+.attr('unselectable', 'on')
+.mousedown(function(e) { return rcube_event.cancel(e); })
+.on('mouseup keypress', function(e) {
+if (e.type == 'mouseup' || rcube_event.get_keycode(e) == 13) {
+ref.command('insert-response', $(this).attr('rel'));
+$(document.body).trigger('mouseup');  // hides the menu
+return rcube_event.cancel(e);
+}
+});
+// avoid textarea loosing focus when hitting the save-response button/link
+$.each(this.buttons['save-response'] || [], function (i, v) {
+$('#' + v.id).mousedown(function(e){ return rcube_event.cancel(e); })
+});
+}
+// init message compose form
+this.init_messageform();
+}
+else if (this.env.action == 'get') {
+this.enable_command('download', true);
+// Mozilla's PDF.js viewer does not allow printing from host page (#5125)
+// to minimize user confusion we disable the Print button
+if (bw.mz && this.env.mimetype == 'application/pdf') {
+n = 0; // there will be two onload events, first for the preload page
+$(this.gui_objects.messagepartframe).on('load', function() {
+if (n++) try { if (this.contentWindow.document) ref.enable_command('print', true); }
+catch (e) {/* ignore */}
+});
+}
+else
+this.enable_command('print', true);
+if (this.env.is_message) {
+this.enable_command('reply', 'reply-all', 'edit', 'viewsource',
+'forward', 'forward-inline', 'forward-attachment', true);
+if (this.env.list_post)
+this.enable_command('reply-list', true);
+}
+// center and scale the image in preview frame
+if (this.env.mimetype.startsWith('image/'))
+$(this.gui_objects.messagepartframe).on('load', function() {
+var css = 'img { max-width:100%; max-height:100%; } ' // scale
++ 'body { display:flex; align-items:center; justify-content:center; height:100%; margin:0; }'; // align
+$(this).contents().find('head').append('<style type="text/css">'+ css + '</style>');
+});
+}
+// show printing dialog
+else if (this.env.action == 'print' && this.env.uid
+&& !this.env.is_pgp_content && !this.env.pgp_mime_part
+) {
+this.print_dialog();
+}
+// get unread count for each mailbox
+if (this.gui_objects.mailboxlist) {
+this.env.unread_counts = {};
+this.gui_objects.folderlist = this.gui_objects.mailboxlist;
+this.http_request('getunread', {_page: this.env.current_page});
+}
+// init address book widget
+if (this.gui_objects.contactslist) {
+this.contact_list = new rcube_list_widget(this.gui_objects.contactslist,
+{ multiselect:true, draggable:false, keyboard:true });
+this.contact_list
+.addEventListener('initrow', function(o) { ref.triggerEvent('insertrow', { cid:o.uid, row:o }); })
+.addEventListener('select', function(o) { ref.compose_recipient_select(o); })
+.addEventListener('dblclick', function(o) { ref.compose_add_recipient(); })
+.addEventListener('keypress', function(o) {
+if (o.key_pressed == o.ENTER_KEY) {
+if (!ref.compose_add_recipient()) {
+// execute link action on <enter> if not a recipient entry
+if (o.last_selected && String(o.last_selected).charAt(0) == 'G') {
+$(o.rows[o.last_selected].obj).find('a').first().click();
+}
+}
+}
+})
+.init();
+// remember last focused address field
+$('#_to,#_cc,#_bcc').focus(function() { ref.env.focused_field = this; });
+}
+if (this.gui_objects.addressbookslist) {
+this.gui_objects.folderlist = this.gui_objects.addressbookslist;
+this.enable_command('list-addresses', true);
+}
+// ask user to send MDN
+if (this.env.mdn_request && this.env.uid) {
+var postact = 'sendmdn',
+postdata = {_uid: this.env.uid, _mbox: this.env.mailbox};
+if (!confirm(this.get_label('mdnrequest'))) {
+postdata._flag = 'mdnsent';
+postact = 'mark';
+}
+this.http_post(postact, postdata);
+}
+this.check_mailvelope(this.env.action);
+// detect browser capabilities
+if (!this.is_framed() && !this.env.extwin)
+this.browser_capabilities_check();
+break;
+case 'addressbook':
+this.env.address_group_stack = [];
+if (this.gui_objects.folderlist)
+this.env.contactfolders = $.extend($.extend({}, this.env.address_sources), this.env.contactgroups);
+this.enable_command('add', 'import', this.env.writable_source);
+this.enable_command('list', 'listgroup', 'pushgroup', 'popgroup', 'listsearch', 'search', 'reset-search', 'advanced-search', true);
+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
+.addEventListener('initrow', function(o) { ref.triggerEvent('insertrow', { cid:o.uid, row:o }); })
+.addEventListener('keypress', function(o) { ref.contactlist_keypress(o); })
+.addEventListener('select', function(o) { ref.contactlist_select(o); })
+.addEventListener('dragstart', function(o) { ref.drag_start(o); })
+.addEventListener('dragmove', function(e) { ref.drag_move(e); })
+.addEventListener('dragend', function(e) { ref.drag_end(e); })
+.init();
+$(this.gui_objects.qsearchbox).focusin(function() { ref.contact_list.blur(); });
+this.update_group_commands();
+this.command('list');
+}
+if (this.gui_objects.savedsearchlist) {
+this.savedsearchlist = new rcube_treelist_widget(this.gui_objects.savedsearchlist, {
+id_prefix: 'rcmli',
+id_encode: this.html_identifier_encode,
+id_decode: this.html_identifier_decode
+});
+this.savedsearchlist.addEventListener('select', function(node) {
+ref.triggerEvent('selectfolder', { folder:node.id, prefix:'rcmli' }); });
+}
+this.set_page_buttons();
+if (this.env.cid) {
+this.enable_command('show', 'edit', 'qrcode', true);
+// register handlers for group assignment via checkboxes
+if (this.gui_objects.editform) {
+$('input.groupmember').change(function() {
+ref.group_member_change(this.checked ? 'add' : 'del', ref.env.cid, ref.env.source, this.value);
+});
+}
+}
+if (this.gui_objects.editform) {
+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;
+case 'settings':
+this.enable_command('preferences', 'identities', 'responses', 'save', 'folders', true);
+if (this.env.action == 'identities') {
+this.enable_command('add', this.env.identities_level < 2);
+}
+else if (this.env.action == 'edit-identity' || this.env.action == 'add-identity') {
+this.enable_command('save', 'edit', 'toggle-editor', true);
+this.enable_command('delete', this.env.identities_level < 2);
+// initialize HTML editor
+this.editor_init(this.env.editor_config, 'rcmfd_signature');
+}
+else if (this.env.action == 'folders') {
+this.enable_command('subscribe', 'unsubscribe', 'create-folder', 'rename-folder', true);
+}
+else if (this.env.action == 'edit-folder' && this.gui_objects.editform) {
+this.enable_command('save', 'folder-size', true);
+parent.rcmail.env.exists = this.env.messagecount;
+parent.rcmail.enable_command('purge', this.env.messagecount);
+}
+else if (this.env.action == 'responses') {
+this.enable_command('add', true);
+}
+if (this.gui_objects.identitieslist) {
+this.identity_list = new rcube_list_widget(this.gui_objects.identitieslist,
+{multiselect:false, draggable:false, keyboard:true});
+this.identity_list
+.addEventListener('select', function(o) { ref.identity_select(o); })
+.addEventListener('keypress', function(o) {
+if (o.key_pressed == o.ENTER_KEY) {
+ref.identity_select(o);
+}
+})
+.init()
+.focus();
+}
+else if (this.gui_objects.sectionslist) {
+this.sections_list = new rcube_list_widget(this.gui_objects.sectionslist, {multiselect:false, draggable:false, keyboard:true});
+this.sections_list
+.addEventListener('select', function(o) { ref.section_select(o); })
+.addEventListener('keypress', function(o) { if (o.key_pressed == o.ENTER_KEY) ref.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:true});
+this.responses_list
+.addEventListener('select', function(list) {
+var win, id = list.get_single_selection();
+ref.enable_command('delete', !!id && $.inArray(id, ref.env.readonly_responses) < 0);
+if (id && (win = ref.get_frame_window(ref.env.contentframe))) {
+ref.set_busy(true);
+ref.location_href({ _action:'edit-response', _key:id, _framed:1 }, win);
+}
+})
+.init()
+.focus();
+}
+break;
+case 'login':
+var tz, tz_name, jstz = window.jstz,
+input_user = $('#rcmloginuser'),
+input_tz = $('#rcmlogintz');
+input_user.keyup(function(e) { return ref.login_user_keyup(e); });
+if (input_user.val() == '')
+input_user.focus();
+else
+$('#rcmloginpwd').focus();
+// detect client timezone
+if (jstz && (tz = jstz.determine()))
+tz_name = tz.name();
+input_tz.val(tz_name ? tz_name : (new Date().getStdTimezoneOffset() / -60));
+// display 'loading' message on form submit, lock submit button
+$('form').submit(function () {
+$('input[type=submit]', this).prop('disabled', true);
+ref.clear_messages();
+ref.display_message('', 'loading');
+});
+this.enable_command('login', true);
+break;
+}
+// select first input field in an edit form
+if (this.gui_objects.editform)
+$("input,select,textarea", this.gui_objects.editform)
+.not(':hidden').not(':disabled').first().select().focus();
+// prevent from form submit with Enter key in file input fields
+if (bw.ie)
+$('input[type=file]').keydown(function(e) { if (e.keyCode == '13') e.preventDefault(); });
+// flag object as complete
+this.loaded = true;
+this.env.lastrefresh = new Date();
+// show message
+if (this.pending_message)
+this.display_message.apply(this, this.pending_message);
+// init treelist widget
+if (this.gui_objects.folderlist && window.rcube_treelist_widget
+// some plugins may load rcube_treelist_widget and there's one case
+// when this will cause problems - addressbook widget in compose,
+// which already has been initialized using rcube_list_widget
+&& this.gui_objects.folderlist != this.gui_objects.addressbookslist
+) {
+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) }
+});
+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' });
+ref.mark_all_read_state();
+});
+}
+// activate html5 file drop feature (if browser supports it and if configured)
+if (this.gui_objects.filedrop && this.env.filedrop && ((window.XMLHttpRequest && XMLHttpRequest.prototype && XMLHttpRequest.prototype.sendAsBinary) || window.FormData)) {
+$(document.body).on('dragover dragleave drop', function(e) { return ref.document_drag_hover(e, e.type == 'dragover'); });
+$(this.gui_objects.filedrop).addClass('droptarget')
+.on('dragover dragleave', function(e) { return ref.file_drag_hover(e, e.type == 'dragover'); })
+.get(0).addEventListener('drop', function(e) { return ref.file_dropped(e); }, false);
+}
+// catch document (and iframe) mouse clicks
+var body_mouseup = function(e) { return ref.doc_mouse_up(e); };
+$(document.body)
+.mouseup(body_mouseup)
+.keydown(function(e) { return ref.doc_keypress(e); });
+rcube_webmail.set_iframe_events({mouseup: body_mouseup});
+// trigger init event hook
+this.triggerEvent('init', { task:this.task, action:this.env.action });
+// execute all foreign onload scripts
+// @deprecated
+for (n in this.onloads) {
+if (typeof this.onloads[n] === 'string')
+eval(this.onloads[n]);
+else if (typeof this.onloads[n] === 'function')
+this.onloads[n]();
+}
+// start keep-alive and refresh intervals
+this.start_refresh();
+this.start_keepalive();
+};
+this.log = function(msg)
+{
+if (this.env.devel_mode && window.console && console.log)
+console.log(msg);
+};
+/*********************************************************/
+/*********       client command interface        *********/
+/*********************************************************/
+// execute a specific command on the web client
+this.command = function(command, props, obj, event)
+{
+var ret, uid, cid, url, flag, aborted = false;
+if (obj && obj.blur && !(event && rcube_event.is_keyboard(event)))
+obj.blur();
+// 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)
+if ((obj && obj.href && String(obj.href).indexOf('#') < 0) && rcube_event.get_modifier(event)) {
+return true;
+}
+// command not supported or allowed
+if (!this.commands[command]) {
+// pass command to parent window
+if (this.is_framed())
+parent.rcmail.command(command, props);
+return false;
+}
+// check input before leaving compose step
+if (this.task == 'mail' && this.env.action == 'compose' && !this.env.server_error && command != 'save-pref'
+&& $.inArray(command, this.env.compose_commands) < 0
+) {
+if (!this.env.is_sent && this.cmp_hash != this.compose_field_hash() && !confirm(this.get_label('notsentwarning')))
+return false;
+// remove copy from local storage if compose screen is left intentionally
+this.remove_compose_data(this.env.compose_id);
+this.compose_skip_unsavedcheck = true;
+}
+this.last_command = command;
+// process external commands
+if (typeof this.command_handlers[command] === 'function') {
+ret = this.command_handlers[command](props, obj, event);
+return ret !== undefined ? ret : (obj ? false : true);
+}
+else if (typeof this.command_handlers[command] === 'string') {
+ret = window[this.command_handlers[command]](props, obj, event);
+return ret !== undefined ? ret : (obj ? false : true);
+}
+// trigger plugin hooks
+this.triggerEvent('actionbefore', {props:props, action:command, originalEvent:event});
+ret = this.triggerEvent('before'+command, props || event);
+if (ret !== undefined) {
+// abort if one of the handlers returned false
+if (ret === false)
+return false;
+else
+props = ret;
+}
+ret = undefined;
+// process internal command
+switch (command) {
+case 'login':
+if (this.gui_objects.loginform)
+this.gui_objects.loginform.submit();
+break;
+// commands to switch task
+case 'logout':
+case 'mail':
+case 'addressbook':
+case 'settings':
+this.switch_task(command);
+break;
+case 'about':
+this.redirect('?_task=settings&_action=about', false);
+break;
+case 'permaurl':
+if (obj && obj.href && obj.target)
+return true;
+else if (this.env.permaurl)
+parent.location.href = this.env.permaurl;
+break;
+case 'extwin':
+if (this.env.action == 'compose') {
+var form = this.gui_objects.messageform,
+win = this.open_window('');
+if (win) {
+this.save_compose_form_local();
+this.compose_skip_unsavedcheck = true;
+$("input[name='_action']", form).val('compose');
+form.action = this.url('mail/compose', { _id: this.env.compose_id, _extwin: 1 });
+form.target = win.name;
+form.submit();
+}
+}
+else {
+this.open_window(this.env.permaurl, true);
+}
+break;
+case 'change-format':
+url = this.env.permaurl + '&_format=' + props;
+if (this.env.action == 'preview')
+url = url.replace(/_action=show/, '_action=preview') + '&_framed=1';
+if (this.env.extwin)
+url += '&_extwin=1';
+location.href = url;
+break;
+case 'menu-open':
+if (props && props.menu == 'attachmentmenu') {
+var mimetype = this.env.attachments[props.id];
+if (mimetype && mimetype.mimetype) // in compose format is different
+mimetype = mimetype.mimetype;
+this.enable_command('open-attachment', mimetype && this.env.mimetypes && $.inArray(mimetype, this.env.mimetypes) >= 0);
+}
+this.show_menu(props, props.show || undefined, event);
+break;
+case 'menu-close':
+this.hide_menu(props, event);
+break;
+case 'menu-save':
+this.triggerEvent(command, {props:props, originalEvent:event});
+return false;
+case 'open':
+if (uid = this.get_single_uid()) {
+obj.href = this.url('show', this.params_from_uid(uid));
+return true;
+}
+break;
+case 'close':
+if (this.env.extwin)
+window.close();
+break;
+case 'list':
+if (props && props != '') {
+this.reset_qsearch(true);
+}
+if (this.env.action == 'compose' && this.env.extwin) {
+window.close();
+}
+else if (this.task == 'mail') {
+this.list_mailbox(props);
+this.set_button_titles();
+}
+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':
+var sort_order = this.env.sort_order,
+sort_col = !this.env.disabled_sort_col ? props : this.env.sort_col;
+if (!this.env.disabled_sort_order)
+sort_order = this.env.sort_col == sort_col && sort_order == 'ASC' ? 'DESC' : 'ASC';
+// set table header and update env
+this.set_list_sorting(sort_col, sort_order);
+// reload message list
+this.list_mailbox('', '', sort_col+'_'+sort_order);
+break;
+case 'nextpage':
+this.list_page('next');
+break;
+case 'lastpage':
+this.list_page('last');
+break;
+case 'previouspage':
+this.list_page('prev');
+break;
+case 'firstpage':
+this.list_page('first');
+break;
+case 'expunge':
+if (this.env.exists)
+this.expunge_mailbox(this.env.mailbox);
+break;
+case 'purge':
+case 'empty-mailbox':
+if (this.env.exists)
+this.purge_mailbox(this.env.mailbox);
+break;
+// common commands used in multiple tasks
+case 'show':
+if (this.task == 'mail') {
+uid = this.get_single_uid();
+if (uid && (!this.env.uid || uid != this.env.uid)) {
+if (this.env.mailbox == this.env.drafts_mailbox)
+this.open_compose_step({ _draft_uid: uid, _mbox: this.env.mailbox });
+else
+this.show_message(uid);
+}
+}
+else if (this.task == 'addressbook') {
+cid = props ? props : this.get_single_cid();
+if (cid && !(this.env.action == 'show' && cid == this.env.cid))
+this.load_contact(cid, 'show');
+}
+break;
+case 'add':
+if (this.task == 'addressbook')
+this.load_contact(0, 'add');
+else if (this.task == 'settings' && this.env.action == 'responses') {
+var frame;
+if ((frame = this.get_frame_window(this.env.contentframe))) {
+this.set_busy(true);
+this.location_href({ _action:'add-response', _framed:1 }, frame);
+}
+}
+else if (this.task == 'settings') {
+this.identity_list.clear_selection();
+this.load_identity(0, 'add-identity');
+}
+break;
+case 'edit':
+if (this.task == 'addressbook' && (cid = this.get_single_cid()))
+this.load_contact(cid, 'edit');
+else if (this.task == 'settings' && props)
+this.load_identity(props, 'edit-identity');
+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;
+case 'save':
+var input, form = this.gui_objects.editform;
+if (form) {
+// adv. search
+if (this.env.action == 'search') {
+}
+// user prefs
+else if ((input = $("input[name='_pagesize']", form)) && input.length && isNaN(parseInt(input.val()))) {
+alert(this.get_label('nopagesizewarning'));
+input.focus();
+break;
+}
+// contacts/identities
+else {
+// reload form
+if (props == 'reload') {
+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())
+) {
+alert(this.get_label('noemailwarning'));
+input.focus();
+break;
+}
+}
+// add selected source (on the list)
+if (parent.rcmail && parent.rcmail.env.source)
+form.action = this.add_url(form.action, '_orig_source', parent.rcmail.env.source);
+form.submit();
+}
+break;
+case 'delete':
+// mail task
+if (this.task == 'mail')
+this.delete_messages(event);
+// addressbook task
+else if (this.task == 'addressbook')
+this.delete_contacts();
+// settings: canned response
+else if (this.task == 'settings' && this.env.action == 'responses')
+this.delete_response();
+// settings: user identities
+else if (this.task == 'settings')
+this.delete_identity();
+break;
+// mail task commands
+case 'move':
+case 'moveto': // deprecated
+if (this.task == 'mail')
+this.move_messages(props, event);
+else if (this.task == 'addressbook')
+this.move_contacts(props);
+break;
+case 'copy':
+if (this.task == 'mail')
+this.copy_messages(props, event);
+else if (this.task == 'addressbook')
+this.copy_contacts(props);
+break;
+case 'mark':
+if (props)
+this.mark_message(props);
+break;
+case 'toggle_status':
+case 'toggle_flag':
+flag = command == 'toggle_flag' ? 'flagged' : 'read';
+if (uid = props) {
+// toggle flagged/unflagged
+if (flag == 'flagged') {
+if (this.message_list.rows[uid].flagged)
+flag = 'unflagged';
+}
+// toggle read/unread
+else if (this.message_list.rows[uid].deleted)
+flag = 'undelete';
+else if (!this.message_list.rows[uid].unread)
+flag = 'unread';
+this.mark_message(flag, uid);
+}
+break;
+case 'always-load':
+if (this.env.uid && this.env.sender) {
+this.add_contact(this.env.sender);
+setTimeout(function(){ ref.command('load-images'); }, 300);
+break;
+}
+case 'load-images':
+if (this.env.uid)
+this.show_message(this.env.uid, true, this.env.action=='preview');
+break;
+case 'load-attachment':
+case 'open-attachment':
+case 'download-attachment':
+var params, mimetype = this.env.attachments[props];
+if (this.env.action == 'compose') {
+params = {_file: props, _id: this.env.compose_id};
+mimetype = mimetype ? mimetype.mimetype : '';
+}
+else {
+params = {_mbox: this.env.mailbox, _uid: this.env.uid, _part: props};
+}
+// open attachment in frame if it's of a supported mimetype
+if (command != 'download-attachment' && mimetype && this.env.mimetypes && $.inArray(mimetype, this.env.mimetypes) >= 0) {
+if (this.open_window(this.url('get', $.extend({_frame: 1}, params))))
+break;
+}
+params._download = 1;
+// prevent from page unload warning in compose
+this.compose_skip_unsavedcheck = 1;
+this.goto_url('get', params, false, true);
+this.compose_skip_unsavedcheck = 0;
+break;
+case 'select-all':
+this.select_all_mode = props ? false : true;
+this.dummy_select = true; // prevent msg opening if there's only one msg on the list
+if (props == 'invert')
+this.message_list.invert_selection();
+else
+this.message_list.select_all(props == 'page' ? '' : props);
+this.dummy_select = null;
+break;
+case 'select-none':
+this.select_all_mode = false;
+this.message_list.clear_selection();
+break;
+case 'expand-all':
+this.env.autoexpand_threads = 1;
+this.message_list.expand_all();
+break;
+case 'expand-unread':
+this.env.autoexpand_threads = 2;
+this.message_list.collapse_all();
+this.expand_unread();
+break;
+case 'collapse-all':
+this.env.autoexpand_threads = 0;
+this.message_list.collapse_all();
+break;
+case 'nextmessage':
+if (this.env.next_uid)
+this.show_message(this.env.next_uid, false, this.env.action == 'preview');
+break;
+case 'lastmessage':
+if (this.env.last_uid)
+this.show_message(this.env.last_uid);
+break;
+case 'previousmessage':
+if (this.env.prev_uid)
+this.show_message(this.env.prev_uid, false, this.env.action == 'preview');
+break;
+case 'firstmessage':
+if (this.env.first_uid)
+this.show_message(this.env.first_uid);
+break;
+case 'compose':
+url = {};
+if (this.task == 'mail') {
+url = {_mbox: this.env.mailbox, _search: this.env.search_request};
+if (props)
+url._to = props;
+}
+// modify url if we're in addressbook
+else if (this.task == 'addressbook') {
+// switch to mail compose step directly
+if (props && props.indexOf('@') > 0) {
+url._to = props;
+}
+else {
+var a_cids = [];
+// use contact id passed as command parameter
+if (props)
+a_cids.push(props);
+// get selected contacts
+else if (this.contact_list)
+a_cids = this.contact_list.get_selection();
+if (a_cids.length)
+this.http_post('mailto', { _cid: a_cids.join(','), _source: this.env.source }, true);
+else if (this.env.group)
+this.http_post('mailto', { _gid: this.env.group, _source: this.env.source }, true);
+break;
+}
+}
+else if (props && typeof props == 'string') {
+url._to = props;
+}
+else if (props && typeof props == 'object') {
+$.extend(url, props);
+}
+this.open_compose_step(url);
+break;
+case 'spellcheck':
+if (this.spellcheck_state()) {
+this.editor.spellcheck_stop();
+}
+else {
+this.editor.spellcheck_start();
+}
+break;
+case 'savedraft':
+// Reset the auto-save timer
+clearTimeout(this.save_timer);
+// compose form did not change (and draft wasn't saved already)
+if (this.env.draft_id && this.cmp_hash == this.compose_field_hash()) {
+this.auto_save_start();
+break;
+}
+this.submit_messageform(true);
+break;
+case 'send':
+if (!props.nocheck && !this.env.is_sent && !this.check_compose_input(command))
+break;
+// Reset the auto-save timer
+clearTimeout(this.save_timer);
+this.submit_messageform();
+break;
+case 'send-attachment':
+// Reset the auto-save timer
+clearTimeout(this.save_timer);
+if (!(flag = this.upload_file(props || this.gui_objects.uploadform, 'upload'))) {
+if (flag !== false)
+alert(this.get_label('selectimportfile'));
+aborted = true;
+}
+break;
+case 'insert-sig':
+this.change_identity($("[name='_from']")[0], true);
+break;
+case 'list-addresses':
+this.list_contacts(props);
+this.enable_command('add-recipient', false);
+break;
+case 'add-recipient':
+this.compose_add_recipient(props);
+break;
+case 'reply-all':
+case 'reply-list':
+case 'reply':
+if (uid = this.get_single_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');
+else if (command == 'reply-list')
+url._all = 'list';
+this.open_compose_step(url);
+}
+break;
+case 'forward-attachment':
+case 'forward-inline':
+case 'forward':
+var uids = this.env.uid ? [this.env.uid] : (this.message_list ? this.message_list.get_selection() : []);
+if (uids.length) {
+url = { _forward_uid: this.uids_to_list(uids), _mbox: this.env.mailbox, _search: this.env.search_request };
+if (command == 'forward-attachment' || (!props && this.env.forward_attachment) || uids.length > 1)
+url._attachment = 1;
+this.open_compose_step(url);
+}
+break;
+case 'print':
+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.env.is_message) {
+this.gui_objects.messagepartframe.contentWindow.print();
+}
+else if (uid = this.get_single_uid()) {
+url = this.url('print', this.params_from_uid(uid, {_safe: this.env.safemode ? 1 : 0}));
+if (this.open_window(url, true, true)) {
+if (this.env.action != 'show' && this.env.action != 'get')
+this.mark_message('read', uid);
+}
+}
+break;
+case 'viewsource':
+if (uid = this.get_single_uid())
+this.open_window(this.url('viewsource', this.params_from_uid(uid)), true, true);
+break;
+case 'download':
+if (this.env.action == 'get') {
+location.href = this.secure_url(location.href.replace(/_frame=/, '_download='));
+}
+else if (uid = this.get_single_uid()) {
+this.goto_url('viewsource', this.params_from_uid(uid, {_save: 1}), false, true);
+}
+break;
+// quicksearch
+case 'search':
+ret = this.qsearch(props);
+break;
+// reset quicksearch
+case 'reset-search':
+var n, s = this.env.search_request || this.env.qsearch;
+this.reset_qsearch(true);
+if (s && this.env.action == 'compose') {
+if (this.contact_list)
+this.list_contacts_clear();
+}
+else if (s && this.env.mailbox) {
+this.list_mailbox(this.env.mailbox, 1);
+}
+else if (s && this.task == 'addressbook') {
+if (this.env.source == '') {
+for (n in this.env.address_sources) break;
+this.env.source = n;
+this.env.group = '';
+}
+this.list_contacts(this.env.source, this.env.group, 1);
+}
+break;
+case 'pushgroup':
+// add group ID and current search to stack
+var group = {
+id: props.id,
+search_request: this.env.search_request,
+page: this.env.current_page,
+search: this.env.search_request && this.gui_objects.qsearchbox ? this.gui_objects.qsearchbox.value : null
+};
+this.env.address_group_stack.push(group);
+if (obj && event)
+rcube_event.cancel(event);
+case 'listgroup':
+this.reset_qsearch();
+this.list_contacts(props.source, props.id, 1, group);
+break;
+case 'popgroup':
+if (this.env.address_group_stack.length) {
+var old = this.env.address_group_stack.pop();
+this.reset_qsearch();
+if (old.search_request) {
+// this code is executed when going back to the search result
+if (old.search && this.gui_objects.qsearchbox)
+$(this.gui_objects.qsearchbox).val(old.search);
+this.env.search_request = old.search_request;
+this.list_contacts_remote(null, null, this.env.current_page = old.page);
+}
+else
+this.list_contacts(props.source, this.env.address_group_stack[this.env.address_group_stack.length-1].id);
+}
+break;
+case 'import-messages':
+var form = props || this.gui_objects.importform,
+importlock = this.set_busy(true, 'importwait');
+$('input[name="_unlock"]', form).val(importlock);
+if (!(flag = this.upload_file(form, 'import', importlock))) {
+this.set_busy(false, null, importlock);
+if (flag !== false)
+alert(this.get_label('selectimportfile'));
+aborted = true;
+}
+break;
+case 'import':
+if (this.env.action == 'import' && this.gui_objects.importform) {
+var file = document.getElementById('rcmimportfile');
+if (file && !file.value) {
+alert(this.get_label('selectimportfile'));
+aborted = true;
+break;
+}
+this.gui_objects.importform.submit();
+this.set_busy(true, 'importwait');
+this.lock_form(this.gui_objects.importform, true);
+}
+else
+this.goto_url('import', (this.env.source ? '_target='+urlencode(this.env.source)+'&' : ''));
+break;
+case 'export':
+if (this.contact_list.rowcount > 0) {
+this.goto_url('export', { _source: this.env.source, _gid: this.env.group, _search: this.env.search_request }, false, true);
+}
+break;
+case 'export-selected':
+if (this.contact_list.rowcount > 0) {
+this.goto_url('export', { _source: this.env.source, _gid: this.env.group, _cid: this.contact_list.get_selection().join(',') }, false, true);
+}
+break;
+case 'upload-photo':
+this.upload_contact_photo(props || this.gui_objects.uploadform);
+break;
+case 'delete-photo':
+this.replace_contact_photo('-del-');
+break;
+// user settings commands
+case 'preferences':
+case 'identities':
+case 'responses':
+case 'folders':
+this.goto_url('settings/' + command);
+break;
+case 'undo':
+this.http_request('undo', '', this.display_message('', 'loading'));
+break;
+// unified command call (command name == function name)
+default:
+var func = command.replace(/-/g, '_');
+if (this[func] && typeof this[func] === 'function') {
+ret = this[func](props, obj, event);
+}
+break;
+}
+if (!aborted && this.triggerEvent('after'+command, props) === false)
+ret = false;
+this.triggerEvent('actionafter', { props:props, action:command, aborted:aborted, ret:ret });
+return ret === false ? false : obj ? false : true;
+};
+// set command(s) enabled or disabled
+this.enable_command = function()
+{
+var i, n, args = Array.prototype.slice.call(arguments),
+enable = args.pop(), cmd;
+for (n=0; n<args.length; n++) {
+cmd = args[n];
+// argument of type array
+if (typeof cmd === 'string') {
+this.commands[cmd] = enable;
+this.set_button(cmd, (enable ? 'act' : 'pas'));
+this.triggerEvent('enable-command', {command: cmd, status: enable});
+}
+// push array elements into commands array
+else {
+for (i in cmd)
+args.push(cmd[i]);
+}
+}
+};
+this.command_enabled = function(cmd)
+{
+return this.commands[cmd];
+};
+// lock/unlock interface
+this.set_busy = function(a, message, id)
+{
+if (a && message) {
+var msg = this.get_label(message);
+if (msg == message)
+msg = 'Loading...';
+id = this.display_message(msg, 'loading');
+}
+else if (!a && id) {
+this.hide_message(id);
+}
+this.busy = a;
+//document.body.style.cursor = a ? 'wait' : 'default';
+if (this.gui_objects.editform)
+this.lock_form(this.gui_objects.editform, a);
+return id;
+};
+// return a localized string
+this.get_label = function(name, domain)
+{
+if (domain && this.labels[domain+'.'+name])
+return this.labels[domain+'.'+name];
+else if (this.labels[name])
+return this.labels[name];
+else
+return name;
+};
+// alias for convenience reasons
+this.gettext = this.get_label;
+// switch to another application task
+this.switch_task = function(task)
+{
+if (this.task === task && task != 'mail')
+return;
+var url = this.get_task_url(task);
+if (task == 'mail')
+url += '&_mbox=INBOX';
+else if (task == 'logout' && !this.env.server_error) {
+url = this.secure_url(url);
+this.clear_compose_data();
+}
+this.redirect(url);
+};
+this.get_task_url = function(task, url)
+{
+if (!url)
+url = this.env.comm_path;
+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)
+{
+if (this.is_framed())
+parent.rcmail.reload(delay);
+else if (delay)
+setTimeout(function() { ref.reload(); }, delay);
+else if (window.location)
+location.href = this.url('', {_extwin: this.env.extwin});
+};
+// Add variable to GET string, replace old value if exists
+this.add_url = function(url, name, value)
+{
+value = urlencode(value);
+if (/(\?.*)$/.test(url)) {
+var urldata = RegExp.$1,
+datax = RegExp('((\\?|&)'+RegExp.escape(name)+'=[^&]*)');
+if (datax.test(urldata)) {
+urldata = urldata.replace(datax, RegExp.$2 + name + '=' + value);
+}
+else
+urldata += '&' + name + '=' + value
+return url.replace(/(\?.*)$/, urldata);
+}
+return url + '?' + name + '=' + value;
+};
+// append CSRF protection token to the given url
+this.secure_url = function(url)
+{
+return this.add_url(url, '_token', this.env.request_token);
+},
+this.is_framed = function()
+{
+return this.env.framed && parent.rcmail && parent.rcmail != this && typeof parent.rcmail.command == 'function';
+};
+this.save_pref = function(prop)
+{
+var request = {_name: prop.name, _value: prop.value};
+if (prop.session)
+request._session = prop.session;
+if (prop.env)
+this.env[prop.env] = prop.value;
+this.http_post('save-pref', request);
+};
+this.html_identifier = function(str, encode)
+{
+return encode ? this.html_identifier_encode(str) : String(str).replace(this.identifier_expr, '_');
+};
+this.html_identifier_encode = function(str)
+{
+return Base64.encode(String(str)).replace(/=+$/, '').replace(/\+/g, '-').replace(/\//g, '_');
+};
+this.html_identifier_decode = function(str)
+{
+str = String(str).replace(/-/g, '+').replace(/_/g, '/');
+while (str.length % 4) str += '=';
+return Base64.decode(str);
+};
+/*********************************************************/
+/*********        event handling methods         *********/
+/*********************************************************/
+this.drag_menu = function(e, target)
+{
+var modkey = rcube_event.get_modifier(e),
+menu = this.gui_objects.dragmenu;
+if (menu && modkey == SHIFT_KEY && this.commands['copy']) {
+var pos = rcube_event.get_mouse_pos(e);
+this.env.drag_target = target;
+this.show_menu(this.gui_objects.dragmenu.id, true, e);
+$(menu).css({top: (pos.y-10)+'px', left: (pos.x-10)+'px'});
+return true;
+}
+return false;
+};
+this.drag_menu_action = function(action)
+{
+var menu = this.gui_objects.dragmenu;
+if (menu) {
+$(menu).hide();
+}
+this.command(action, this.env.drag_target);
+this.env.drag_target = null;
+};
+this.drag_start = function(list)
+{
+this.drag_active = true;
+if (this.preview_timer)
+clearTimeout(this.preview_timer);
+// prepare treelist widget for dragging interactions
+if (this.treelist)
+this.treelist.drag_start();
+};
+this.drag_end = function(e)
+{
+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)
+{
+if (this.gui_objects.folderlist) {
+var drag_target, oldclass,
+layerclass = 'draglayernormal',
+mouse = rcube_event.get_mouse_pos(e);
+if (this.contact_list && this.contact_list.draglayer)
+oldclass = this.contact_list.draglayer.attr('class');
+// mouse intersects a valid drop target on the treelist
+if (this.treelist && (drag_target = this.treelist.intersects(mouse, true))) {
+this.env.last_folder_target = drag_target;
+layerclass = 'draglayer' + (this.check_droptarget(drag_target) > 1 ? 'copy' : 'normal');
+}
+else {
+// Clear target, otherwise drag end will trigger move into last valid droptarget
+this.env.last_folder_target = null;
+}
+if (layerclass != oldclass && this.contact_list && this.contact_list.draglayer)
+this.contact_list.draglayer.attr('class', layerclass);
+}
+};
+this.collapse_folder = function(name)
+{
+if (this.treelist)
+this.treelist.toggle(name);
+};
+this.folder_collapsed = function(node)
+{
+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)+'&';
+// select the folder if one of its childs is currently selected
+// don't select if it's virtual (#1488346)
+if (!node.virtual && this.env.mailbox && this.env.mailbox.startsWith(node.id + this.env.delimiter))
+this.command('list', node.id);
+}
+else {
+var reg = new RegExp('&'+urlencode(node.id)+'&');
+this.env[prefname] = this.env[prefname].replace(reg, '');
+}
+if (!this.drag_active) {
+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);
+}
+};
+// global mouse-click handler to cleanup some UI elements
+this.doc_mouse_up = function(e)
+{
+var list, id, target = rcube_event.get_target(e);
+// ignore event if jquery UI dialog is open
+if ($(target).closest('.ui-dialog, .ui-widget-overlay').length)
+return;
+// remove focus from list widgets
+if (window.rcube_list_widget && rcube_list_widget._instances.length) {
+$.each(rcube_list_widget._instances, function(i,list){
+if (list && !rcube_mouse_is_over(e, list.list.parentNode))
+list.blur();
+});
+}
+// reset 'pressed' buttons
+if (this.buttons_sel) {
+for (id in this.buttons_sel)
+if (typeof id !== 'function')
+this.button_out(this.buttons_sel[id], id);
+this.buttons_sel = {};
+}
+// reset popup menus; delayed to have updated menu_stack data
+setTimeout(function(e){
+var obj, skip, config, id, i, parents = $(target).parents();
+for (i = ref.menu_stack.length - 1; i >= 0; i--) {
+id = ref.menu_stack[i];
+obj = $('#' + id);
+if (obj.is(':visible')
+&& target != obj.data('opener')
+&& target != obj.get(0)  // check if scroll bar was clicked (#1489832)
+&& !parents.is(obj.data('opener'))
+&& id != skip
+&& (obj.attr('data-editable') != 'true' || !$(target).parents('#' + id).length)
+&& (obj.attr('data-sticky') != 'true' || !rcube_mouse_is_over(e, obj.get(0)))
+) {
+ref.hide_menu(id, e);
+}
+skip = obj.data('parent');
+}
+}, 10, e);
+};
+// global keypress event handler
+this.doc_keypress = function(e)
+{
+// Helper method to move focus to the next/prev active menu item
+var focus_menu_item = function(dir) {
+var obj, item, mod = dir < 0 ? 'prevAll' : 'nextAll', limit = dir < 0 ? 'last' : 'first';
+if (ref.focused_menu && (obj = $('#'+ref.focused_menu))) {
+item = obj.find(':focus').closest('li')[mod](':has(:not([aria-disabled=true]))').find('a,input')[limit]();
+if (!item.length)
+item = obj.find(':focus').closest('ul')[mod](':has(:not([aria-disabled=true]))').find('a,input')[limit]();
+return item.focus().length;
+}
+return 0;
+};
+var target = e.target || {},
+keyCode = rcube_event.get_keycode(e);
+if (e.keyCode != 27 && (!this.menu_keyboard_active || target.nodeName == 'TEXTAREA' || target.nodeName == 'SELECT')) {
+return true;
+}
+switch (keyCode) {
+case 38:
+case 40:
+case 63232: // "up", in safari keypress
+case 63233: // "down", in safari keypress
+focus_menu_item(keyCode == 38 || keyCode == 63232 ? -1 : 1);
+return rcube_event.cancel(e);
+case 9:   // tab
+if (this.focused_menu) {
+var mod = rcube_event.get_modifier(e);
+if (!focus_menu_item(mod == SHIFT_KEY ? -1 : 1)) {
+this.hide_menu(this.focused_menu, e);
+}
+}
+return rcube_event.cancel(e);
+case 27:  // esc
+if (this.menu_stack.length)
+this.hide_menu(this.menu_stack[this.menu_stack.length-1], e);
+break;
+}
+return true;
+}
+this.msglist_select = function(list)
+{
+if (this.preview_timer)
+clearTimeout(this.preview_timer);
+var selected = list.get_single_selection();
+this.enable_command(this.env.message_commands, selected != null);
+if (selected) {
+// Hide certain command buttons when Drafts folder is selected
+if (this.env.mailbox == this.env.drafts_mailbox)
+this.enable_command('reply', 'reply-all', 'reply-list', 'forward', 'forward-attachment', 'forward-inline', false);
+// Disable reply-list when List-Post header is not set
+else {
+var msg = this.env.messages[selected];
+if (!msg.ml)
+this.enable_command('reply-list', false);
+}
+}
+// Multi-message commands
+this.enable_command('delete', 'move', 'copy', 'mark', 'forward', 'forward-attachment', list.selection.length > 0);
+// reset all-pages-selection
+if (selected || (list.selection.length && list.selection.length != list.rowcount))
+this.select_all_mode = false;
+// start timer for message preview (wait for double click)
+if (selected && this.env.contentframe && !list.multi_selecting && !this.dummy_select) {
+// try to be responsive and try not to overload the server when user is pressing up/down key repeatedly
+var now = new Date().getTime();
+var time_diff = now - (this._last_msglist_select_time || 0);
+var preview_pane_delay = this.preview_delay_click;
+// user is selecting messages repeatedly, wait until this ends (use larger delay)
+if (time_diff < this.preview_delay_select) {
+preview_pane_delay = this.preview_delay_select;
+if (this.preview_timer) {
+clearTimeout(this.preview_timer);
+}
+if (this.env.contentframe) {
+this.show_contentframe(false);
+}
+}
+this._last_msglist_select_time = now;
+this.preview_timer = setTimeout(function() { ref.msglist_get_preview(); }, preview_pane_delay);
+}
+else if (this.env.contentframe) {
+this.show_contentframe(false);
+}
+};
+this.msglist_dbl_click = function(list)
+{
+if (this.preview_timer)
+clearTimeout(this.preview_timer);
+var uid = list.get_single_selection();
+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);
+};
+this.msglist_keypress = function(list)
+{
+if (list.modkey == CONTROL_KEY)
+return;
+if (list.key_pressed == list.ENTER_KEY)
+this.command('show');
+else if (list.key_pressed == list.DELETE_KEY || list.key_pressed == list.BACKSPACE_KEY)
+this.command('delete');
+else if (list.key_pressed == 33)
+this.command('previouspage');
+else if (list.key_pressed == 34)
+this.command('nextpage');
+};
+this.msglist_get_preview = function()
+{
+var uid = this.get_single_uid();
+if (uid && this.env.contentframe && !this.drag_active)
+this.show_message(uid, false, true);
+else if (this.env.contentframe)
+this.show_contentframe(false);
+};
+this.msglist_expand = function(row)
+{
+if (this.env.messages[row.uid])
+this.env.messages[row.uid].expanded = row.expanded;
+$(row.obj)[row.expanded?'addClass':'removeClass']('expanded');
+};
+this.msglist_set_coltypes = function(list)
+{
+var i, found, name, cols = list.thead.rows[0].cells;
+this.env.listcols = [];
+for (i=0; i<cols.length; i++)
+if (cols[i].id && cols[i].id.startsWith('rcm')) {
+name = cols[i].id.slice(3);
+this.env.listcols.push(name);
+}
+if ((found = $.inArray('flag', this.env.listcols)) >= 0)
+this.env.flagged_col = found;
+if ((found = $.inArray('subject', this.env.listcols)) >= 0)
+this.env.subject_col = found;
+this.command('save-pref', { name: 'list_cols', value: this.env.listcols, session: 'list_attrib/columns' });
+};
+this.check_droptarget = function(id)
+{
+switch (this.task) {
+case 'mail':
+return (this.env.mailboxes[id]
+&& !this.env.mailboxes[id].virtual
+&& (this.env.mailboxes[id].id != this.env.mailbox || this.is_multifolder_listing())) ? 1 : 0;
+case 'addressbook':
+var target;
+if (id != this.env.source && (target = this.env.contactfolders[id])) {
+// droptarget is a group
+if (target.type == 'group') {
+if (target.id != this.env.group && !this.env.contactfolders[target.source].readonly) {
+var is_other = this.env.selection_sources.length > 1 || $.inArray(target.source, this.env.selection_sources) == -1;
+return !is_other || this.commands.move ? 1 : 2;
+}
+}
+// droptarget is a (writable) addressbook and it's not the source
+else if (!target.readonly && (this.env.selection_sources.length > 1 || $.inArray(id, this.env.selection_sources) == -1)) {
+return this.commands.move ? 1 : 2;
+}
+}
+}
+return 0;
+};
+// open popup window
+this.open_window = function(url, small, toolbar)
+{
+var wname = 'rcmextwin' + new Date().getTime();
+url += (url.match(/\?/) ? '&' : '?') + '_extwin=1';
+if (this.env.standard_windows)
+var extwin = window.open(url, wname);
+else {
+var win = this.is_framed() ? parent.window : window,
+page = $(win),
+page_width = page.width(),
+page_height = bw.mz ? $('body', win).height() : page.height(),
+w = Math.min(small ? this.env.popup_width_small : this.env.popup_width, page_width),
+h = page_height, // always use same height
+l = (win.screenLeft || win.screenX) + 20,
+t = (win.screenTop || win.screenY) + 20,
+extwin = window.open(url, wname,
+'width='+w+',height='+h+',top='+t+',left='+l+',resizable=yes,location=no,scrollbars=yes'
++(toolbar ? ',toolbar=yes,menubar=yes,status=yes' : ',toolbar=no,menubar=no,status=no'));
+}
+// detect popup blocker (#1489618)
+// don't care this might not work with all browsers
+if (!extwin || extwin.closed) {
+this.display_message(this.get_label('windowopenerror'), 'warning');
+return;
+}
+// write loading... message to empty windows
+if (!url && extwin.document) {
+extwin.document.write('<html><body>' + this.get_label('loading') + '</body></html>');
+}
+// allow plugins to grab the window reference (#1489413)
+this.triggerEvent('openwindow', { url:url, handle:extwin });
+// focus window, delayed to bring to front
+setTimeout(function() { extwin && extwin.focus(); }, 10);
+return extwin;
+};
+/*********************************************************/
+/*********     (message) list functionality      *********/
+/*********************************************************/
+this.init_message_row = function(row)
+{
+var i, fn = {}, uid = row.uid,
+status_icon = (this.env.status_col != null ? 'status' : 'msg') + 'icn' + row.id;
+if (uid && this.env.messages[uid])
+$.extend(row, this.env.messages[uid]);
+// set eventhandler to status icon
+if (row.icon = document.getElementById(status_icon)) {
+fn.icon = function(e) { ref.command('toggle_status', uid); };
+}
+// save message icon position too
+if (this.env.status_col != null)
+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.id))) {
+fn.flagicon = function(e) { ref.command('toggle_flag', uid); };
+}
+// set event handler to thread expand/collapse icon
+if (!row.depth && row.has_children && (row.expando = document.getElementById('rcmexpando'+row.id))) {
+fn.expando = function(e) { ref.expand_message_row(e, uid); };
+}
+// attach events
+$.each(fn, function(i, f) {
+row[i].onclick = function(e) { f(e); return rcube_event.cancel(e); };
+if (bw.touch && row[i].addEventListener) {
+row[i].addEventListener('touchend', function(e) {
+if (e.changedTouches.length == 1) {
+f(e);
+return rcube_event.cancel(e);
+}
+}, false);
+}
+});
+this.triggerEvent('insertrow', { uid:uid, row:row });
+};
+// create a table row in the message list
+this.add_message_row = function(uid, cols, flags, attop)
+{
+if (!this.gui_objects.messagelist || !this.message_list)
+return false;
+// Prevent from adding messages from different folder (#1487752)
+if (flags.mbox != this.env.mailbox && !flags.skip_mbox_check)
+return false;
+// When deleting messages fast it may happen that the same message
+// from the next page could be added many times, we prevent this here
+if (this.message_list.rows[uid])
+return false;
+if (!this.env.messages[uid])
+this.env.messages[uid] = {};
+// merge flags over local message object
+$.extend(this.env.messages[uid], {
+deleted: flags.deleted?1:0,
+replied: flags.answered?1:0,
+unread: !flags.seen?1:0,
+forwarded: flags.forwarded?1:0,
+flagged: flags.flagged?1:0,
+has_children: flags.has_children?1:0,
+depth: flags.depth?flags.depth:0,
+unread_children: flags.unread_children || 0,
+flagged_children: flags.flagged_children || 0,
+parent_uid: flags.parent_uid || 0,
+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
+});
+var c, n, col, html, css_class, label, status_class = '', status_label = '',
+tree = '', expando = '',
+list = this.message_list,
+rows = list.rows,
+message = this.env.messages[uid],
+msg_id = this.html_identifier(uid,true),
+row_class = 'message'
++ (!flags.seen ? ' unread' : '')
++ (flags.deleted ? ' deleted' : '')
++ (flags.flagged ? ' flagged' : '')
++ (message.selected ? ' selected' : ''),
+row = { cols:[], style:{}, id:'rcmrow'+msg_id, uid:uid };
+// message status icons
+css_class = 'msgicon';
+if (this.env.status_col === null) {
+css_class += ' status';
+if (flags.deleted) {
+status_class += ' deleted';
+status_label += this.get_label('deleted') + ' ';
+}
+else if (!flags.seen) {
+status_class += ' unread';
+status_label += this.get_label('unread') + ' ';
+}
+else if (flags.unread_children > 0) {
+status_class += ' unreadchildren';
+}
+}
+if (flags.answered) {
+status_class += ' replied';
+status_label += this.get_label('replied') + ' ';
+}
+if (flags.forwarded) {
+status_class += ' forwarded';
+status_label += this.get_label('forwarded') + ' ';
+}
+// update selection
+if (message.selected && !list.in_selection(uid))
+list.selection.push(uid);
+// threads
+if (this.env.threading) {
+if (message.depth) {
+// This assumes that div width is hardcoded to 15px,
+tree += '<span id="rcmtab' + msg_id + '" class="branch" style="width:' + (message.depth * 15) + 'px;">&nbsp;&nbsp;</span>';
+if ((rows[message.parent_uid] && rows[message.parent_uid].expanded === false)
+|| ((this.env.autoexpand_threads == 0 || this.env.autoexpand_threads == 2) &&
+(!rows[message.parent_uid] || !rows[message.parent_uid].expanded))
+) {
+row.style.display = 'none';
+message.expanded = false;
+}
+else
+message.expanded = true;
+row_class += ' thread expanded';
+}
+else if (message.has_children) {
+if (message.expanded === undefined && (this.env.autoexpand_threads == 1 || (this.env.autoexpand_threads == 2 && message.unread_children))) {
+message.expanded = true;
+}
+expando = '<div id="rcmexpando' + row.id + '" class="' + (message.expanded ? 'expanded' : 'collapsed') + '">&nbsp;&nbsp;</div>';
+row_class += ' thread' + (message.expanded ? ' expanded' : '');
+}
+if (flags.unread_children && flags.seen && !message.expanded)
+row_class += ' unroot';
+if (flags.flagged_children && !message.expanded)
+row_class += ' flaggedroot';
+}
+tree += '<span id="msgicn'+row.id+'" class="'+css_class+status_class+'" title="'+status_label+'"></span>';
+row.className = row_class;
+// build subject link
+if (cols.subject) {
+var action  = flags.mbox == this.env.drafts_mailbox ? 'compose' : 'show',
+uid_param = flags.mbox == this.env.drafts_mailbox ? '_draft_uid' : '_uid',
+query = { _mbox: flags.mbox };
+query[uid_param] = uid;
+cols.subject = '<a href="' + this.url(action, query) + '" onclick="return rcube_event.keyboard_only(event)"' +
+' onmouseover="rcube_webmail.long_subject_title(this,'+(message.depth+1)+')" tabindex="-1"><span>'+cols.subject+'</span></a>';
+}
+// add each submitted col
+for (n in this.env.listcols) {
+c = this.env.listcols[n];
+col = {className: String(c).toLowerCase(), events:{}};
+if (this.env.coltypes[c] && this.env.coltypes[c].hidden) {
+col.className += ' hidden';
+}
+if (c == 'flag') {
+css_class = (flags.flagged ? 'flagged' : 'unflagged');
+label = this.get_label(css_class);
+html = '<span id="flagicn'+row.id+'" class="'+css_class+'" title="'+label+'"></span>';
+}
+else if (c == 'attachment') {
+label = this.get_label('withattachment');
+if (flags.attachmentClass)
+html = '<span class="'+flags.attachmentClass+'" title="'+label+'"></span>';
+else if (/application\/|multipart\/(m|signed)/.test(flags.ctype))
+html = '<span class="attachment" title="'+label+'"></span>';
+else if (/multipart\/report/.test(flags.ctype))
+html = '<span class="report"></span>';
+else if (flags.ctype == 'multipart/encrypted' || flags.ctype == 'application/pkcs7-mime')
+html = '<span class="encrypted"></span>';
+else
+html = '&nbsp;';
+}
+else if (c == 'status') {
+label = '';
+if (flags.deleted) {
+css_class = 'deleted';
+label = this.get_label('deleted');
+}
+else if (!flags.seen) {
+css_class = 'unread';
+label = this.get_label('unread');
+}
+else if (flags.unread_children > 0) {
+css_class = 'unreadchildren';
+}
+else
+css_class = 'msgicon';
+html = '<span id="statusicn'+row.id+'" class="'+css_class+status_class+'" title="'+label+'"></span>';
+}
+else if (c == 'threads')
+html = expando;
+else if (c == 'subject') {
+html = tree + cols[c];
+}
+else if (c == 'priority') {
+if (flags.prio > 0 && flags.prio < 6) {
+label = this.get_label('priority') + ' ' + flags.prio;
+html = '<span class="prio'+flags.prio+'" title="'+label+'"></span>';
+}
+else
+html = '&nbsp;';
+}
+else if (c == 'folder') {
+html = '<span onmouseover="rcube_webmail.long_subject_title(this)">' + cols[c] + '<span>';
+}
+else
+html = cols[c];
+col.innerHTML = html;
+row.cols.push(col);
+}
+if (this.env.layout == 'widescreen')
+row = this.widescreen_message_row(row, uid, message);
+list.insert_row(row, attop);
+// remove 'old' row
+if (attop && this.env.pagesize && list.rowcount > this.env.pagesize) {
+var uid = list.get_last_row();
+list.remove_row(uid);
+list.clear_selection(uid);
+}
+};
+// Converts standard message list record into "widescreen" (3-column) layout
+this.widescreen_message_row = function(row, uid, message)
+{
+var domrow = document.createElement('tr');
+domrow.id = row.id;
+domrow.uid = row.uid;
+domrow.className = row.className;
+if (row.style) $.extend(domrow.style, row.style);
+$.each(this.env.widescreen_list_template, function() {
+if (!ref.env.threading && this.className == 'threads')
+return;
+var i, n, e, col, domcol,
+domcell = document.createElement('td');
+if (this.className) domcell.className = this.className;
+for (i=0; this.cells && i < this.cells.length; i++) {
+for (n=0; row.cols && n < row.cols.length; n++) {
+if (this.cells[i] == row.cols[n].className) {
+col = row.cols[n];
+domcol = document.createElement('span');
+domcol.className = this.cells[i];
+if (this.className == 'subject' && domcol.className != 'subject')
+domcol.className += ' skip-on-drag';
+if (col.innerHTML)
+domcol.innerHTML = col.innerHTML;
+domcell.appendChild(domcol);
+break;
+}
+}
+}
+domrow.appendChild(domcell);
+});
+if (this.env.threading && message.depth) {
+$('td.subject', domrow).attr('style', 'padding-left:' + Math.min(90, message.depth * 15) + 'px !important');
+$('span.branch', domrow).remove();
+}
+return domrow;
+};
+this.set_list_sorting = function(sort_col, sort_order)
+{
+var sort_old = this.env.sort_col == 'arrival' ? 'date' : this.env.sort_col,
+sort_new = sort_col == 'arrival' ? 'date' : sort_col;
+// set table header class
+$('#rcm' + sort_old).removeClass('sorted' + this.env.sort_order.toUpperCase());
+if (sort_new)
+$('#rcm' + sort_new).addClass('sorted' + sort_order);
+// if sorting by 'arrival' is selected, click on date column should not switch to 'date'
+$('#rcmdate > a').prop('rel', sort_col == 'arrival' ? 'arrival' : 'date');
+this.env.sort_col = sort_col;
+this.env.sort_order = sort_order;
+};
+this.set_list_options = function(cols, sort_col, sort_order, threads, layout)
+{
+var update, post_data = {};
+if (sort_col === undefined)
+sort_col = this.env.sort_col;
+if (!sort_order)
+sort_order = this.env.sort_order;
+if (this.env.sort_col != sort_col || this.env.sort_order != sort_order) {
+update = 1;
+this.set_list_sorting(sort_col, sort_order);
+}
+if (this.env.threading != threads) {
+update = 1;
+post_data._threads = threads;
+}
+if (layout && this.env.layout != layout) {
+this.triggerEvent('layout-change', {old_layout: this.env.layout, new_layout: layout});
+update = 1;
+this.env.layout = post_data._layout = layout;
+}
+if (cols && cols.length) {
+// make sure new columns are added at the end of the list
+var i, idx, name, newcols = [], oldcols = this.env.listcols;
+for (i=0; i<oldcols.length; i++) {
+name = oldcols[i];
+idx = $.inArray(name, cols);
+if (idx != -1) {
+newcols.push(name);
+delete cols[idx];
+}
+}
+for (i=0; i<cols.length; i++)
+if (cols[i])
+newcols.push(cols[i]);
+if (newcols.join() != oldcols.join()) {
+update = 1;
+post_data._cols = newcols.join(',');
+}
+}
+if (update)
+this.list_mailbox('', '', sort_col+'_'+sort_order, post_data);
+};
+// when user double-clicks on a row
+this.show_message = function(id, safe, preview)
+{
+if (!id)
+return;
+var win, target = window,
+url = this.params_from_uid(id, {_caps: this.browser_capabilities()});
+if (preview && (win = this.get_frame_window(this.env.contentframe))) {
+target = win;
+url._framed = 1;
+}
+if (safe)
+url._safe = 1;
+// also send search request to get the right messages
+if (this.env.search_request)
+url._search = this.env.search_request;
+if (this.env.extwin)
+url._extwin = 1;
+url = this.url(preview ? 'preview': 'show', url);
+if (preview && String(target.location.href).indexOf(url) >= 0) {
+this.show_contentframe(true);
+}
+else {
+if (!preview && this.env.message_extwin && !this.env.extwin)
+this.open_window(url, true);
+else
+this.location_href(url, target, true);
+}
+};
+// update message status and unread counter after marking a message as read
+this.set_unread_message = function(id, folder)
+{
+var self = this;
+// find window with messages list
+if (!self.message_list)
+self = self.opener();
+if (!self && window.parent)
+self = parent.rcmail;
+if (!self || !self.message_list)
+return;
+// this may fail in multifolder mode
+if (self.set_message(id, 'unread', false) === false)
+self.set_message(id + '-' + folder, 'unread', false);
+if (self.env.unread_counts[folder] > 0) {
+self.env.unread_counts[folder] -= 1;
+self.set_unread_count(folder, self.env.unread_counts[folder], folder == 'INBOX' && !self.is_multifolder_listing());
+}
+};
+this.show_contentframe = function(show)
+{
+var frame, win, name = this.env.contentframe;
+if (frame = this.get_frame_element(name)) {
+if (!show && (win = this.get_frame_window(name))) {
+if (win.location.href.indexOf(this.env.blankpage) < 0) {
+if (win.stop)
+win.stop();
+else // IE
+win.document.execCommand('Stop');
+win.location.href = this.env.blankpage;
+}
+}
+else if (!bw.safari && !bw.konq)
+$(frame)[show ? 'show' : 'hide']();
+}
+if (!show && this.env.frame_lock)
+this.set_busy(false, null, this.env.frame_lock);
+};
+this.get_frame_element = function(id)
+{
+var frame;
+if (id && (frame = document.getElementById(id)))
+return frame;
+};
+this.get_frame_window = function(id)
+{
+var frame = this.get_frame_element(id);
+if (frame && frame.name && window.frames)
+return window.frames[frame.name];
+};
+this.lock_frame = function()
+{
+if (!this.env.frame_lock)
+(this.is_framed() ? parent.rcmail : this).env.frame_lock = this.set_busy(true, 'loading');
+};
+// list a specific page
+this.list_page = function(page)
+{
+if (page == 'next')
+page = this.env.current_page+1;
+else if (page == 'last')
+page = this.env.pagecount;
+else if (page == 'prev' && this.env.current_page > 1)
+page = this.env.current_page-1;
+else if (page == 'first' && this.env.current_page > 1)
+page = 1;
+if (page > 0 && page <= this.env.pagecount) {
+this.env.current_page = page;
+if (this.task == 'addressbook' || this.contact_list)
+this.list_contacts(this.env.source, this.env.group, page);
+else if (this.task == 'mail')
+this.list_mailbox(this.env.mailbox, page);
+}
+};
+// sends request to check for recent messages
+this.checkmail = function()
+{
+var lock = this.set_busy(true, 'checkingmail'),
+params = this.check_recent_params();
+this.http_post('check-recent', params, lock);
+};
+// 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();
+// reset vars
+this.env.current_page = 1;
+this.env.search_filter = filter;
+this.http_request('search', this.search_params(false, filter), lock);
+};
+// reload the current message listing
+this.refresh_list = function()
+{
+this.list_mailbox(this.env.mailbox, this.env.current_page || 1, null, { _clear:1 }, true);
+if (this.message_list)
+this.message_list.clear_selection();
+};
+// list messages of a specific mailbox
+this.list_mailbox = function(mbox, page, sort, url, update_only)
+{
+var win, target = window;
+if (typeof url != 'object')
+url = {};
+if (!mbox)
+mbox = this.env.mailbox ? this.env.mailbox : 'INBOX';
+// add sort to url if set
+if (sort)
+url._sort = sort;
+// 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
+this.clear_message_list();
+if (mbox != this.env.mailbox || (mbox == this.env.mailbox && !page && !sort))
+url._refresh = 1;
+this.select_folder(mbox, '', true);
+this.unmark_folder(mbox, 'recent', '', true);
+this.env.mailbox = mbox;
+}
+// load message list remotely
+if (this.gui_objects.messagelist) {
+this.list_mailbox_remote(mbox, page, url);
+return;
+}
+if (win = this.get_frame_window(this.env.contentframe)) {
+target = win;
+url._framed = 1;
+}
+if (this.env.uid)
+url._uid = this.env.uid;
+// load message list to target frame/window
+if (mbox) {
+this.set_busy(true, 'loading');
+url._mbox = mbox;
+if (page)
+url._page = page;
+this.location_href(url, target);
+}
+};
+this.clear_message_list = function()
+{
+this.env.messages = {};
+this.show_contentframe(false);
+if (this.message_list)
+this.message_list.clear(true);
+};
+// send remote request to load message list
+this.list_mailbox_remote = function(mbox, page, url)
+{
+var lock = this.set_busy(true, 'loading');
+if (typeof url != 'object')
+url = {};
+url._mbox = mbox;
+if (page)
+url._page = page;
+this.http_request('list', url, lock);
+this.update_state({ _mbox: mbox, _page: (page && page > 1 ? page : null) });
+};
+// removes messages that doesn't exists from list selection array
+this.update_selection = function()
+{
+var list = this.message_list,
+selected = list.selection,
+rows = list.rows,
+i, selection = [];
+for (i in selected)
+if (rows[selected[i]])
+selection.push(selected[i]);
+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 && !list.in_selection(id))
+this.show_contentframe(false);
+}
+catch (e) {};
+};
+// expand all threads with unread children
+this.expand_unread = function()
+{
+var r, tbody = this.message_list.tbody,
+new_row = tbody.firstChild;
+while (new_row) {
+if (new_row.nodeType == 1 && (r = this.message_list.rows[new_row.uid]) && r.unread_children) {
+this.message_list.expand_all(r);
+this.set_unread_children(r.uid);
+}
+new_row = new_row.nextSibling;
+}
+return false;
+};
+// thread expanding/collapsing handler
+this.expand_message_row = function(e, uid)
+{
+var row = this.message_list.rows[uid];
+// handle unread_children/flagged_children mark
+row.expanded = !row.expanded;
+this.set_unread_children(uid);
+this.set_flagged_children(uid);
+row.expanded = !row.expanded;
+this.message_list.expand_row(e, uid);
+};
+// message list expanding
+this.expand_threads = function()
+{
+if (!this.env.threading || !this.env.autoexpand_threads || !this.message_list)
+return;
+switch (this.env.autoexpand_threads) {
+case 2: this.expand_unread(); break;
+case 1: this.message_list.expand_all(); break;
+}
+};
+// Initializes threads indicators/expanders after list update
+this.init_threads = function(roots, mbox)
+{
+// #1487752
+if (mbox && mbox != this.env.mailbox)
+return false;
+for (var n=0, len=roots.length; n<len; n++)
+this.add_tree_icons(roots[n]);
+this.expand_threads();
+};
+// adds threads tree icons to the list (or specified thread)
+this.add_tree_icons = function(root)
+{
+var i, l, r, n, len, pos, tmp = [], uid = [],
+row, rows = this.message_list.rows;
+if (root)
+row = rows[root] ? rows[root].obj : null;
+else
+row = this.message_list.tbody.firstChild;
+while (row) {
+if (row.nodeType == 1 && (r = rows[row.uid])) {
+if (r.depth) {
+for (i=tmp.length-1; i>=0; i--) {
+len = tmp[i].length;
+if (len > r.depth) {
+pos = len - r.depth;
+if (!(tmp[i][pos] & 2))
+tmp[i][pos] = tmp[i][pos] ? tmp[i][pos]+2 : 2;
+}
+else if (len == r.depth) {
+if (!(tmp[i][0] & 2))
+tmp[i][0] += 2;
+}
+if (r.depth > len)
+break;
+}
+tmp.push(new Array(r.depth));
+tmp[tmp.length-1][0] = 1;
+uid.push(r.uid);
+}
+else {
+if (tmp.length) {
+for (i in tmp) {
+this.set_tree_icons(uid[i], tmp[i]);
+}
+tmp = [];
+uid = [];
+}
+if (root && row != rows[root].obj)
+break;
+}
+}
+row = row.nextSibling;
+}
+if (tmp.length) {
+for (i in tmp) {
+this.set_tree_icons(uid[i], tmp[i]);
+}
+}
+};
+// adds tree icons to specified message row
+this.set_tree_icons = function(uid, tree)
+{
+var i, divs = [], html = '', len = tree.length;
+for (i=0; i<len; i++) {
+if (tree[i] > 2)
+divs.push({'class': 'l3', width: 15});
+else if (tree[i] > 1)
+divs.push({'class': 'l2', width: 15});
+else if (tree[i] > 0)
+divs.push({'class': 'l1', width: 15});
+// separator div
+else if (divs.length && !divs[divs.length-1]['class'])
+divs[divs.length-1].width += 15;
+else
+divs.push({'class': null, width: 15});
+}
+for (i=divs.length-1; i>=0; i--) {
+if (divs[i]['class'])
+html += '<div class="tree '+divs[i]['class']+'" />';
+else
+html += '<div style="width:'+divs[i].width+'px" />';
+}
+if (html)
+$('#rcmtab'+this.html_identifier(uid, true)).html(html);
+};
+// update parent in a thread
+this.update_thread_root = function(uid, flag)
+{
+if (!this.env.threading)
+return;
+var root = this.message_list.find_root(uid);
+if (uid == root)
+return;
+var p = this.message_list.rows[root];
+if (flag == 'read' && p.unread_children) {
+p.unread_children--;
+}
+else if (flag == 'unread' && p.has_children) {
+// unread_children may be undefined
+p.unread_children = (p.unread_children || 0) + 1;
+}
+else if (flag == 'unflagged' && p.flagged_children) {
+p.flagged_children--;
+}
+else if (flag == 'flagged' && p.has_children) {
+p.flagged_children = (p.flagged_children || 0) + 1;
+}
+else {
+return;
+}
+this.set_message_icon(root);
+this.set_unread_children(root);
+this.set_flagged_children(root);
+};
+// update thread indicators for all messages in a thread below the specified message
+// return number of removed/added root level messages
+this.update_thread = function(uid)
+{
+if (!this.env.threading || !this.message_list.rows[uid])
+return 0;
+var r, parent, count = 0,
+list = this.message_list,
+rows = list.rows,
+row = rows[uid],
+depth = rows[uid].depth,
+roots = [];
+if (!row.depth) // root message: decrease roots count
+count--;
+// update unread_children for thread root
+if (row.depth && row.unread) {
+parent = list.find_root(uid);
+rows[parent].unread_children--;
+this.set_unread_children(parent);
+}
+// update unread_children for thread root
+if (row.depth && row.flagged) {
+parent = list.find_root(uid);
+rows[parent].flagged_children--;
+this.set_flagged_children(parent);
+}
+parent = row.parent_uid;
+// childrens
+row = row.obj.nextSibling;
+while (row) {
+if (row.nodeType == 1 && (r = rows[row.uid])) {
+if (!r.depth || r.depth <= depth)
+break;
+r.depth--; // move left
+// reset width and clear the content of a tab, icons will be added later
+$('#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'
+$('#'+r.id+' .leaf:first')
+.attr('id', 'rcmexpando' + r.id)
+.attr('class', (r.obj.style.display != 'none' ? 'expanded' : 'collapsed'))
+.mousedown({uid: r.uid}, function(e) {
+return ref.expand_message_row(e, e.data.uid);
+});
+r.unread_children = 0;
+roots.push(r);
+}
+// show if it was hidden
+if (r.obj.style.display == 'none')
+$(r.obj).show();
+}
+else {
+if (r.depth == depth)
+r.parent_uid = parent;
+if (r.unread && roots.length)
+roots[roots.length-1].unread_children++;
+}
+}
+row = row.nextSibling;
+}
+// update unread_children/flagged_children for roots
+for (r=0; r<roots.length; r++) {
+this.set_unread_children(roots[r].uid);
+this.set_flagged_children(roots[r].uid);
+}
+return count;
+};
+this.delete_excessive_thread_rows = function()
+{
+var rows = this.message_list.rows,
+tbody = this.message_list.tbody,
+row = tbody.firstChild,
+cnt = this.env.pagesize + 1;
+while (row) {
+if (row.nodeType == 1 && (r = rows[row.uid])) {
+if (!r.depth && cnt)
+cnt--;
+if (!cnt)
+this.message_list.remove_row(row.uid);
+}
+row = row.nextSibling;
+}
+};
+// set message icon
+this.set_message_icon = function(uid)
+{
+var css_class, label = '',
+row = this.message_list.rows[uid];
+if (!row)
+return false;
+if (row.icon) {
+css_class = 'msgicon';
+if (row.deleted) {
+css_class += ' deleted';
+label += this.get_label('deleted') + ' ';
+}
+else if (row.unread) {
+css_class += ' unread';
+label += this.get_label('unread') + ' ';
+}
+else if (row.unread_children)
+css_class += ' unreadchildren';
+if (row.msgicon == row.icon) {
+if (row.replied) {
+css_class += ' replied';
+label += this.get_label('replied') + ' ';
+}
+if (row.forwarded) {
+css_class += ' forwarded';
+label += this.get_label('forwarded') + ' ';
+}
+css_class += ' status';
+}
+$(row.icon).attr('class', css_class).attr('title', label);
+}
+if (row.msgicon && row.msgicon != row.icon) {
+label = '';
+css_class = 'msgicon';
+if (!row.unread && row.unread_children) {
+css_class += ' unreadchildren';
+}
+if (row.replied) {
+css_class += ' replied';
+label += this.get_label('replied') + ' ';
+}
+if (row.forwarded) {
+css_class += ' forwarded';
+label += this.get_label('forwarded') + ' ';
+}
+$(row.msgicon).attr('class', css_class).attr('title', label);
+}
+if (row.flagicon) {
+css_class = (row.flagged ? 'flagged' : 'unflagged');
+label = this.get_label(css_class);
+$(row.flagicon).attr('class', css_class)
+.attr('aria-label', label)
+.attr('title', label);
+}
+};
+// set message status
+this.set_message_status = function(uid, flag, status)
+{
+var row = this.message_list.rows[uid];
+if (!row)
+return false;
+if (flag == 'unread') {
+if (row.unread != status)
+this.update_thread_root(uid, status ? 'unread' : 'read');
+}
+else if (flag == 'flagged') {
+this.update_thread_root(uid, status ? 'flagged' : 'unflagged');
+}
+if ($.inArray(flag, ['unread', 'deleted', 'replied', 'forwarded', 'flagged']) > -1)
+row[flag] = status;
+};
+// set message row status, class and icon
+this.set_message = function(uid, flag, status)
+{
+var row = this.message_list && this.message_list.rows[uid];
+if (!row)
+return false;
+if (flag)
+this.set_message_status(uid, flag, status);
+if ($.inArray(flag, ['unread', 'deleted', 'flagged']) > -1)
+$(row.obj)[row[flag] ? 'addClass' : 'removeClass'](flag);
+this.set_unread_children(uid);
+this.set_message_icon(uid);
+};
+// sets unroot (unread_children) class of parent row
+this.set_unread_children = function(uid)
+{
+var row = this.message_list.rows[uid];
+if (row.parent_uid)
+return;
+var enable = !row.unread && row.unread_children && !row.expanded;
+$(row.obj)[enable ? 'addClass' : 'removeClass']('unroot');
+};
+// sets flaggedroot (flagged_children) class of parent row
+this.set_flagged_children = function(uid)
+{
+var row = this.message_list.rows[uid];
+if (row.parent_uid)
+return;
+var enable = row.flagged_children && !row.expanded;
+$(row.obj)[enable ? 'addClass' : 'removeClass']('flaggedroot');
+};
+// copy selected messages to the specified mailbox
+this.copy_messages = function(mbox, event)
+{
+if (mbox && typeof mbox === 'object')
+mbox = mbox.id;
+else if (!mbox)
+return this.folder_selector(event, function(folder) { ref.command('copy', folder); });
+// exit if current or no mailbox specified
+if (!mbox || mbox == this.env.mailbox)
+return;
+var post_data = this.selection_post_data({_target_mbox: mbox});
+// exit if selection is empty
+if (!post_data._uid)
+return;
+// send request to server
+this.http_post('copy', post_data, this.display_message(this.get_label('copyingmessage'), 'loading'));
+};
+// move selected messages to the specified mailbox
+this.move_messages = function(mbox, event)
+{
+if (mbox && typeof mbox === 'object')
+mbox = mbox.id;
+else if (!mbox)
+return this.folder_selector(event, function(folder) { ref.command('move', folder); });
+// exit if current or no mailbox specified
+if (!mbox || (mbox == this.env.mailbox && !this.is_multifolder_listing()))
+return;
+var lock = false, post_data = this.selection_post_data({_target_mbox: mbox});
+// exit if selection is empty
+if (!post_data._uid)
+return;
+// show wait message
+if (this.env.action == 'show')
+lock = this.set_busy(true, 'movingmessage');
+else
+this.show_contentframe(false);
+// Hide message command buttons until a message is selected
+this.enable_command(this.env.message_commands, false);
+this.with_selected_messages('move', post_data, lock);
+};
+// delete selected messages from the current mailbox
+this.delete_messages = function(event)
+{
+var list = this.message_list, trash = this.env.trash_mailbox;
+// if config is set to flag for deletion
+if (this.env.flag_for_deletion) {
+this.mark_message('delete');
+return false;
+}
+// if there isn't a defined trash mailbox or we are in it
+else if (!trash || this.env.mailbox == trash)
+this.permanently_remove_messages();
+// we're in Junk folder and delete_junk is enabled
+else if (this.env.delete_junk && this.env.junk_mailbox && this.env.mailbox == this.env.junk_mailbox)
+this.permanently_remove_messages();
+// if there is a trash mailbox defined and we're not currently in it
+else {
+// if shift was pressed delete it immediately
+if ((list && list.modkey == SHIFT_KEY) || (event && rcube_event.get_modifier(event) == SHIFT_KEY)) {
+if (confirm(this.get_label('deletemessagesconfirm')))
+this.permanently_remove_messages();
+}
+else
+this.move_messages(trash);
+}
+return true;
+};
+// delete the selected messages permanently
+this.permanently_remove_messages = function()
+{
+var post_data = this.selection_post_data();
+// exit if selection is empty
+if (!post_data._uid)
+return;
+this.show_contentframe(false);
+this.with_selected_messages('delete', post_data);
+};
+// Send a specific move/delete request with UIDs of all selected messages
+this.with_selected_messages = function(action, post_data, lock, http_action)
+{
+var count = 0, msg,
+remove = (action == 'delete' || !this.is_multifolder_listing());
+// update the list (remove rows, clear selection)
+if (this.message_list) {
+var n, id, root, roots = [],
+selection = this.message_list.get_selection();
+for (n=0, len=selection.length; n<len; n++) {
+id = selection[n];
+if (this.env.threading) {
+count += this.update_thread(id);
+root = this.message_list.find_root(id);
+if (root != id && $.inArray(root, roots) < 0) {
+roots.push(root);
+}
+}
+if (remove)
+this.message_list.remove_row(id, (this.env.display_next && n == selection.length-1));
+}
+// make sure there are no selected rows
+if (!this.env.display_next && remove)
+this.message_list.clear_selection();
+// update thread tree icons
+for (n=0, len=roots.length; n<len; n++) {
+this.add_tree_icons(roots[n]);
+}
+}
+if (count < 0)
+post_data._count = (count*-1);
+// remove threads from the end of the list
+else if (count > 0 && remove)
+this.delete_excessive_thread_rows();
+if (!remove)
+post_data._refresh = 1;
+if (!lock) {
+msg = action == 'move' ? 'movingmessage' : 'deletingmessage';
+lock = this.display_message(this.get_label(msg), 'loading');
+}
+// send request to server
+this.http_post(http_action || action, post_data, lock);
+};
+// build post data for message delete/move/copy/flag requests
+this.selection_post_data = function(data)
+{
+if (typeof(data) != 'object')
+data = {};
+data._mbox = this.env.mailbox;
+if (!data._uid) {
+var uids = this.env.uid ? [this.env.uid] : this.message_list.get_selection();
+data._uid = this.uids_to_list(uids);
+}
+if (this.env.action)
+data._from = this.env.action;
+// also send search request to get the right messages
+if (this.env.search_request)
+data._search = this.env.search_request;
+if (this.env.display_next && this.env.next_uid)
+data._next_uid = this.env.next_uid;
+return data;
+};
+// set a specific flag to one or more messages
+this.mark_message = function(flag, uid)
+{
+var a_uids = [], r_uids = [], len, n, id,
+list = this.message_list;
+if (uid)
+a_uids[0] = uid;
+else if (this.env.uid)
+a_uids[0] = this.env.uid;
+else if (list)
+a_uids = list.get_selection();
+if (!list)
+r_uids = a_uids;
+else {
+list.focus();
+for (n=0, len=a_uids.length; n<len; n++) {
+id = a_uids[n];
+if ((flag == 'read' && list.rows[id].unread)
+|| (flag == 'unread' && !list.rows[id].unread)
+|| (flag == 'delete' && !list.rows[id].deleted)
+|| (flag == 'undelete' && list.rows[id].deleted)
+|| (flag == 'flagged' && !list.rows[id].flagged)
+|| (flag == 'unflagged' && list.rows[id].flagged))
+{
+r_uids.push(id);
+}
+}
+}
+// nothing to do
+if (!r_uids.length && !this.select_all_mode)
+return;
+switch (flag) {
+case 'read':
+case 'unread':
+this.toggle_read_status(flag, r_uids);
+break;
+case 'delete':
+case 'undelete':
+this.toggle_delete_status(r_uids);
+break;
+case 'flagged':
+case 'unflagged':
+this.toggle_flagged_status(flag, a_uids);
+break;
+}
+};
+// set class to read/unread
+this.toggle_read_status = function(flag, a_uids)
+{
+var i, len = a_uids.length,
+post_data = this.selection_post_data({_uid: this.uids_to_list(a_uids), _flag: flag}),
+lock = this.display_message(this.get_label('markingmessage'), 'loading');
+// mark all message rows as read/unread
+for (i=0; i<len; i++)
+this.set_message(a_uids[i], 'unread', (flag == 'unread' ? true : false));
+this.http_post('mark', post_data, lock);
+};
+// set image to flagged or unflagged
+this.toggle_flagged_status = function(flag, a_uids)
+{
+var i, len = a_uids.length,
+post_data = this.selection_post_data({_uid: this.uids_to_list(a_uids), _flag: flag}),
+lock = this.display_message(this.get_label('markingmessage'), 'loading');
+// mark all message rows as flagged/unflagged
+for (i=0; i<len; i++)
+this.set_message(a_uids[i], 'flagged', (flag == 'flagged' ? true : false));
+this.http_post('mark', post_data, lock);
+};
+// mark all message rows as deleted/undeleted
+this.toggle_delete_status = function(a_uids)
+{
+var len = a_uids.length,
+i, uid, all_deleted = true,
+rows = this.message_list ? this.message_list.rows : {};
+if (len == 1) {
+if (!this.message_list || (rows[a_uids[0]] && !rows[a_uids[0]].deleted))
+this.flag_as_deleted(a_uids);
+else
+this.flag_as_undeleted(a_uids);
+return true;
+}
+for (i=0; i<len; i++) {
+uid = a_uids[i];
+if (rows[uid] && !rows[uid].deleted) {
+all_deleted = false;
+break;
+}
+}
+if (all_deleted)
+this.flag_as_undeleted(a_uids);
+else
+this.flag_as_deleted(a_uids);
+return true;
+};
+this.flag_as_undeleted = function(a_uids)
+{
+var i, len = a_uids.length,
+post_data = this.selection_post_data({_uid: this.uids_to_list(a_uids), _flag: 'undelete'}),
+lock = this.display_message(this.get_label('markingmessage'), 'loading');
+for (i=0; i<len; i++)
+this.set_message(a_uids[i], 'deleted', false);
+this.http_post('mark', post_data, lock);
+};
+this.flag_as_deleted = function(a_uids)
+{
+var r_uids = [],
+post_data = this.selection_post_data({_uid: this.uids_to_list(a_uids), _flag: 'delete'}),
+lock = this.display_message(this.get_label('markingmessage'), 'loading'),
+list = this.message_list,
+rows = list ? list.rows : {},
+count = 0;
+for (var i=0, len=a_uids.length; i<len; i++) {
+uid = a_uids[i];
+if (rows[uid]) {
+if (rows[uid].unread)
+r_uids[r_uids.length] = uid;
+if (this.env.skip_deleted) {
+count += this.update_thread(uid);
+list.remove_row(uid, (this.env.display_next && i == list.selection.length-1));
+}
+else
+this.set_message(uid, 'deleted', true);
+}
+}
+// make sure there are no selected rows
+if (this.env.skip_deleted && list) {
+if (!this.env.display_next || !list.rowcount)
+list.clear_selection();
+if (count < 0)
+post_data._count = (count*-1);
+else if (count > 0)
+// remove threads from the end of the list
+this.delete_excessive_thread_rows();
+}
+// set of messages to mark as seen
+if (r_uids.length)
+post_data._ruid = this.uids_to_list(r_uids);
+if (this.env.skip_deleted && this.env.display_next && this.env.next_uid)
+post_data._next_uid = this.env.next_uid;
+this.http_post('mark', post_data, lock);
+};
+// flag as read without mark request (called from backend)
+// argument should be a coma-separated list of uids
+this.flag_deleted_as_read = function(uids)
+{
+var uid, i, len,
+rows = this.message_list ? this.message_list.rows : {};
+if (typeof uids == 'string')
+uids = uids.split(',');
+for (i=0, len=uids.length; i<len; i++) {
+uid = uids[i];
+if (rows[uid])
+this.set_message(uid, 'unread', false);
+}
+};
+// Converts array of message UIDs to comma-separated list for use in URL
+// with select_all mode checking
+this.uids_to_list = function(uids)
+{
+return this.select_all_mode ? '*' : (uids.length <= 1 ? uids.join(',') : uids);
+};
+// Sets title of the delete button
+this.set_button_titles = function()
+{
+var label = 'deletemessage';
+if (!this.env.flag_for_deletion
+&& this.env.trash_mailbox && this.env.mailbox != this.env.trash_mailbox
+&& (!this.env.delete_junk || !this.env.junk_mailbox || this.env.mailbox != this.env.junk_mailbox)
+)
+label = 'movemessagetotrash';
+this.set_alttext('delete', label);
+};
+// Initialize input element for list page jump
+this.init_pagejumper = function(element)
+{
+$(element).addClass('rcpagejumper')
+.on('focus', function(e) {
+// create and display popup with page selection
+var i, html = '';
+for (i = 1; i <= ref.env.pagecount; i++)
+html += '<li>' + i + '</li>';
+html = '<ul class="toolbarmenu">' + html + '</ul>';
+if (!ref.pagejump) {
+ref.pagejump = $('<div id="pagejump-selector" class="popupmenu"></div>')
+.appendTo(document.body)
+.on('click', 'li', function() {
+if (!ref.busy)
+$(element).val($(this).text()).change();
+});
+}
+if (ref.pagejump.data('count') != i)
+ref.pagejump.html(html);
+ref.pagejump.attr('rel', '#' + this.id).data('count', i);
+// display page selector
+ref.show_menu('pagejump-selector', true, e);
+$(this).keydown();
+})
+// keyboard navigation
+.on('keydown keyup click', function(e) {
+var current, selector = $('#pagejump-selector'),
+ul = $('ul', selector),
+list = $('li', ul),
+height = ul.height(),
+p = parseInt(this.value);
+if (e.which != 27 && e.which != 9 && e.which != 13 && !selector.is(':visible'))
+return ref.show_menu('pagejump-selector', true, e);
+if (e.type == 'keydown') {
+// arrow-down
+if (e.which == 40) {
+if (list.length > p)
+this.value = (p += 1);
+}
+// arrow-up
+else if (e.which == 38) {
+if (p > 1 && list.length > p - 1)
+this.value = (p -= 1);
+}
+// enter
+else if (e.which == 13) {
+return $(this).change();
+}
+// esc, tab
+else if (e.which == 27 || e.which == 9) {
+return $(element).val(ref.env.current_page);
+}
+}
+$('li.selected', ul).removeClass('selected');
+if ((current = $(list[p - 1])).length) {
+current.addClass('selected');
+$('#pagejump-selector').scrollTop(((ul.height() / list.length) * (p - 1)) - selector.height() / 2);
+}
+})
+.on('change', function(e) {
+// go to specified page
+var p = parseInt(this.value);
+if (p && p != ref.env.current_page && !ref.busy) {
+ref.hide_menu('pagejump-selector');
+ref.list_page(p);
+}
+});
+};
+// Update page-jumper state on list updates
+this.update_pagejumper = function()
+{
+$('input.rcpagejumper').val(this.env.current_page).prop('disabled', this.env.pagecount < 2);
+};
+// check for mailvelope API
+this.check_mailvelope = function(action)
+{
+if (typeof window.mailvelope !== 'undefined') {
+this.mailvelope_load(action);
+}
+else {
+$(window).on('mailvelope', function() {
+ref.mailvelope_load(action);
+});
+}
+};
+// Load Mailvelope functionality (and initialize keyring if needed)
+this.mailvelope_load = function(action)
+{
+if (this.env.browser_capabilities)
+this.env.browser_capabilities['pgpmime'] = 1;
+var keyring = this.env.user_id;
+mailvelope.getKeyring(keyring).then(function(kr) {
+ref.mailvelope_keyring = kr;
+ref.mailvelope_init(action, kr);
+}, function(err) {
+// attempt to create a new keyring for this app/user
+mailvelope.createKeyring(keyring).then(function(kr) {
+ref.mailvelope_keyring = kr;
+ref.mailvelope_init(action, kr);
+}, function(err) {
+console.error(err);
+});
+});
+};
+// Initializes Mailvelope editor or display container
+this.mailvelope_init = function(action, keyring)
+{
+if (!window.mailvelope)
+return;
+if (action == 'show' || action == 'preview' || action == 'print') {
+// decrypt text body
+if (this.env.is_pgp_content) {
+var data = $(this.env.is_pgp_content).text();
+ref.mailvelope_display_container(this.env.is_pgp_content, data, keyring);
+}
+// load pgp/mime message and pass it to the mailvelope display container
+else if (this.env.pgp_mime_part) {
+var msgid = this.display_message(this.get_label('loadingdata'), 'loading'),
+selector = this.env.pgp_mime_container;
+$.ajax({
+type: 'GET',
+url: this.url('get', { '_mbox': this.env.mailbox, '_uid': this.env.uid, '_part': this.env.pgp_mime_part }),
+error: function(o, status, err) {
+ref.http_error(o, status, err, msgid);
+},
+success: function(data) {
+ref.mailvelope_display_container(selector, data, keyring, msgid);
+}
+});
+}
+}
+else if (action == 'compose') {
+this.env.compose_commands.push('compose-encrypted');
+var is_html = $('input[name="_is_html"]').val() > 0;
+if (this.env.pgp_mime_message) {
+// fetch PGP/Mime part and open load into Mailvelope editor
+var lock = this.set_busy(true, this.get_label('loadingdata'));
+$.ajax({
+type: 'GET',
+url: this.url('get', this.env.pgp_mime_message),
+error: function(o, status, err) {
+ref.http_error(o, status, err, lock);
+ref.enable_command('compose-encrypted', !is_html);
+},
+success: function(data) {
+ref.set_busy(false, null, lock);
+if (is_html) {
+ref.command('toggle-editor', {html: false, noconvert: true});
+$('#' + ref.env.composebody).val('');
+}
+ref.compose_encrypted({ quotedMail: data });
+ref.enable_command('compose-encrypted', true);
+}
+});
+}
+else {
+// enable encrypted compose toggle
+this.enable_command('compose-encrypted', !is_html);
+}
+// make sure to disable encryption button after toggling editor into HTML mode
+this.addEventListener('actionafter', function(args) {
+if (args.ret && args.action == 'toggle-editor')
+ref.enable_command('compose-encrypted', !args.props.html);
+});
+}
+};
+// handler for the 'compose-encrypted' command
+this.compose_encrypted = function(props)
+{
+var options, container = $('#' + this.env.composebody).parent();
+// remove Mailvelope editor if active
+if (ref.mailvelope_editor) {
+ref.mailvelope_editor = null;
+ref.compose_skip_unsavedcheck = false;
+ref.set_button('compose-encrypted', 'act');
+container.removeClass('mailvelope')
+.find('iframe:not([aria-hidden=true])').remove();
+$('#' + ref.env.composebody).show();
+$("[name='_pgpmime']").remove();
+// disable commands that operate on the compose body
+ref.enable_command('spellcheck', 'insert-sig', 'toggle-editor', 'insert-response', 'save-response', true);
+ref.triggerEvent('compose-encrypted', { active:false });
+}
+// embed Mailvelope editor container
+else {
+if (this.spellcheck_state())
+this.editor.spellcheck_stop();
+if (props.quotedMail) {
+options = { quotedMail: props.quotedMail, quotedMailIndent: false };
+}
+else {
+options = { predefinedText: $('#' + this.env.composebody).val() };
+}
+if (this.env.compose_mode == 'reply') {
+options.quotedMailIndent = true;
+options.quotedMailHeader = this.env.compose_reply_header;
+}
+mailvelope.createEditorContainer('#' + container.attr('id'), ref.mailvelope_keyring, options).then(function(editor) {
+ref.mailvelope_editor = editor;
+ref.compose_skip_unsavedcheck = true;
+ref.set_button('compose-encrypted', 'sel');
+container.addClass('mailvelope');
+$('#' + ref.env.composebody).hide();
+// disable commands that operate on the compose body
+ref.enable_command('spellcheck', 'insert-sig', 'toggle-editor', 'insert-response', 'save-response', false);
+ref.triggerEvent('compose-encrypted', { active:true });
+// notify user about loosing attachments
+if (ref.env.attachments && !$.isEmptyObject(ref.env.attachments)) {
+alert(ref.get_label('encryptnoattachments'));
+$.each(ref.env.attachments, function(name, attach) {
+ref.remove_from_attachment_list(name);
+});
+}
+}, function(err) {
+console.error(err);
+console.log(options);
+});
+}
+};
+// callback to replace the message body with the full armored
+this.mailvelope_submit_messageform = function(draft, saveonly)
+{
+// get recipients
+var recipients = [];
+$.each(['to', 'cc', 'bcc'], function(i,field) {
+var pos, rcpt, val = $.trim($('[name="_' + field + '"]').val());
+while (val.length && rcube_check_email(val, true)) {
+rcpt = RegExp.$2;
+recipients.push(rcpt);
+val = val.substr(val.indexOf(rcpt) + rcpt.length + 1).replace(/^\s*,\s*/, '');
+}
+});
+// check if we have keys for all recipients
+var isvalid = recipients.length > 0;
+ref.mailvelope_keyring.validKeyForAddress(recipients).then(function(status) {
+var missing_keys = [];
+$.each(status, function(k,v) {
+if (v === false) {
+isvalid = false;
+missing_keys.push(k);
+}
+});
+// list recipients with missing keys
+if (!isvalid && missing_keys.length) {
+// display dialog with missing keys
+ref.simple_dialog(
+ref.get_label('nopubkeyfor').replace('$email', missing_keys.join(', ')) +
+'<p>' + ref.get_label('searchpubkeyservers') + '</p>',
+'encryptedsendialog',
+function() {
+ref.mailvelope_search_pubkeys(missing_keys, function() {
+return true; // close dialog
+});
+},
+{button: 'search'}
+);
+return false;
+}
+if (!isvalid) {
+if (!recipients.length) {
+alert(ref.get_label('norecipientwarning'));
+$("[name='_to']").focus();
+}
+return false;
+}
+// add sender identity to recipients to be able to decrypt our very own message
+var senders = [], selected_sender = ref.env.identities[$("[name='_from'] option:selected").val()];
+$.each(ref.env.identities, function(k, sender) {
+senders.push(sender.email);
+});
+ref.mailvelope_keyring.validKeyForAddress(senders).then(function(status) {
+valid_sender = null;
+$.each(status, function(k,v) {
+if (v !== false) {
+valid_sender = k;
+if (valid_sender == selected_sender) {
+return false;  // break
+}
+}
+});
+if (!valid_sender) {
+if (!confirm(ref.get_label('nopubkeyforsender'))) {
+return false;
+}
+}
+recipients.push(valid_sender);
+ref.mailvelope_editor.encrypt(recipients).then(function(armored) {
+// all checks passed, send message
+var form = ref.gui_objects.messageform,
+hidden = $("[name='_pgpmime']", form),
+msgid = ref.set_busy(true, draft || saveonly ? 'savingmessage' : 'sendingmessage')
+form.target = 'savetarget';
+form._draft.value = draft ? '1' : '';
+form.action = ref.add_url(form.action, '_unlock', msgid);
+form.action = ref.add_url(form.action, '_framed', 1);
+if (saveonly) {
+form.action = ref.add_url(form.action, '_saveonly', 1);
+}
+// send pgp conent via hidden field
+if (!hidden.length) {
+hidden = $('<input type="hidden" name="_pgpmime">').appendTo(form);
+}
+hidden.val(armored);
+form.submit();
+}, function(err) {
+console.log(err);
+});  // mailvelope_editor.encrypt()
+}, function(err) {
+console.error(err);
+});  // mailvelope_keyring.validKeyForAddress(senders)
+}, function(err) {
+console.error(err);
+});  // mailvelope_keyring.validKeyForAddress(recipients)
+return false;
+};
+// wrapper for the mailvelope.createDisplayContainer API call
+this.mailvelope_display_container = function(selector, data, keyring, msgid)
+{
+var error_handler = function(error) {
+// remove mailvelope frame with the error message
+$(selector + ' > iframe').remove();
+ref.hide_message(msgid);
+ref.display_message(error.message, 'error');
+};
+mailvelope.createDisplayContainer(selector, data, keyring, { showExternalContent: this.env.safemode }).then(function(status) {
+if (status.error && status.error.message) {
+return error_handler(status.error);
+}
+ref.hide_message(msgid);
+$(selector).addClass('mailvelope').children().not('iframe').hide();
+// on success we can remove encrypted part from the attachments list
+if (ref.env.pgp_mime_part)
+$('#attach' + ref.env.pgp_mime_part).remove();
+setTimeout(function() { $(window).resize(); }, 10);
+}, error_handler);
+};
+// subroutine to query keyservers for public keys
+this.mailvelope_search_pubkeys = function(emails, resolve, import_handler)
+{
+// query with publickey.js
+var deferreds = [],
+pk = new PublicKey(),
+lock = ref.display_message(ref.get_label('loading'), 'loading');
+$.each(emails, function(i, email) {
+var d = $.Deferred();
+pk.search(email, function(results, errorCode) {
+if (errorCode !== null) {
+// rejecting would make all fail
+// d.reject(email);
+d.resolve([email]);
+}
+else {
+d.resolve([email].concat(results));
+}
+});
+deferreds.push(d);
+});
+$.when.apply($, deferreds).then(function() {
+var missing_keys = [],
+key_selection = [];
+// alanyze results of all queries
+$.each(arguments, function(i, result) {
+var email = result.shift();
+if (!result.length) {
+missing_keys.push(email);
+}
+else {
+key_selection = key_selection.concat(result);
+}
+});
+ref.hide_message(lock);
+resolve(true);
+// show key import dialog
+if (key_selection.length) {
+ref.mailvelope_key_import_dialog(key_selection, import_handler);
+}
+// some keys could not be found
+if (missing_keys.length) {
+ref.display_message(ref.get_label('nopubkeyfor').replace('$email', missing_keys.join(', ')), 'warning');
+}
+}).fail(function() {
+console.error('Pubkey lookup failed with', arguments);
+ref.hide_message(lock);
+ref.display_message('pubkeysearcherror', 'error');
+resolve(false);
+});
+};
+// list the given public keys in a dialog with options to import
+// them into the local Maivelope keyring
+this.mailvelope_key_import_dialog = function(candidates, import_handler)
+{
+var ul = $('<div>').addClass('listing pgpkeyimport');
+$.each(candidates, function(i, keyrec) {
+var li = $('<div>').addClass('key');
+if (keyrec.revoked)  li.addClass('revoked');
+if (keyrec.disabled) li.addClass('disabled');
+if (keyrec.expired)  li.addClass('expired');
+li.append($('<label>').addClass('keyid').text(ref.get_label('keyid')));
+li.append($('<a>').text(keyrec.keyid.substr(-8).toUpperCase())
+.attr('href', keyrec.info)
+.attr('target', '_blank')
+.attr('tabindex', '-1'));
+li.append($('<label>').addClass('keylen').text(ref.get_label('keylength')));
+li.append($('<span>').text(keyrec.keylen));
+if (keyrec.expirationdate) {
+li.append($('<label>').addClass('keyexpired').text(ref.get_label('keyexpired')));
+li.append($('<span>').text(new Date(keyrec.expirationdate * 1000).toDateString()));
+}
+if (keyrec.revoked) {
+li.append($('<span>').addClass('keyrevoked').text(ref.get_label('keyrevoked')));
+}
+var ul_ = $('<ul>').addClass('uids');
+$.each(keyrec.uids, function(j, uid) {
+var li_ = $('<li>').addClass('uid');
+if (uid.revoked)  li_.addClass('revoked');
+if (uid.disabled) li_.addClass('disabled');
+if (uid.expired)  li_.addClass('expired');
+ul_.append(li_.text(uid.uid));
+});
+li.append(ul_);
+li.append($('<input>')
+.attr('type', 'button')
+.attr('rel', keyrec.keyid)
+.attr('value', ref.get_label('import'))
+.addClass('button importkey')
+.prop('disabled', keyrec.revoked || keyrec.disabled || keyrec.expired));
+ul.append(li);
+});
+// display dialog with missing keys
+ref.show_popup_dialog(
+$('<div>')
+.append($('<p>').html(ref.get_label('encryptpubkeysfound')))
+.append(ul),
+ref.get_label('importpubkeys'),
+[{
+text: ref.get_label('close'),
+click: function() {
+(ref.is_framed() ? parent.$ : $)(this).dialog('close');
+}
+}]
+);
+// delegate handler for import button clicks
+ul.on('click', 'input.button.importkey', function() {
+var btn = $(this),
+keyid = btn.attr('rel'),
+pk = new PublicKey(),
+lock = ref.display_message(ref.get_label('loading'), 'loading');
+// fetch from keyserver and import to Mailvelope keyring
+pk.get(keyid, function(armored, errorCode) {
+ref.hide_message(lock);
+if (errorCode) {
+ref.display_message(ref.get_label('keyservererror'), 'error');
+return;
+}
+if (import_handler) {
+import_handler(armored);
+return;
+}
+// import to keyring
+ref.mailvelope_keyring.importPublicKey(armored).then(function(status) {
+if (status === 'REJECTED') {
+// alert(ref.get_label('Key import was rejected'));
+}
+else {
+var $key = keyid.substr(-8).toUpperCase();
+btn.closest('.key').fadeOut();
+ref.display_message(ref.get_label('keyimportsuccess').replace('$key', $key), 'confirmation');
+}
+}, function(err) {
+console.log(err);
+});
+});
+});
+};
+/*********************************************************/
+/*********       mailbox folders methods         *********/
+/*********************************************************/
+this.expunge_mailbox = function(mbox)
+{
+var lock, post_data = {_mbox: mbox};
+// lock interface if it's the active mailbox
+if (mbox == this.env.mailbox) {
+lock = this.set_busy(true, 'loading');
+post_data._reload = 1;
+if (this.env.search_request)
+post_data._search = this.env.search_request;
+}
+// send request to server
+this.http_post('expunge', post_data, lock);
+};
+this.purge_mailbox = function(mbox)
+{
+var lock, post_data = {_mbox: mbox};
+if (!confirm(this.get_label('purgefolderconfirm')))
+return false;
+// lock interface if it's the active mailbox
+if (mbox == this.env.mailbox) {
+lock = this.set_busy(true, 'loading');
+post_data._reload = 1;
+}
+// send request to server
+this.http_post('purge', post_data, lock);
+};
+// test if purge command is allowed
+this.purge_mailbox_test = function()
+{
+return (this.env.exists && (
+this.env.mailbox == this.env.trash_mailbox
+|| this.env.mailbox == this.env.junk_mailbox
+|| this.env.mailbox.startsWith(this.env.trash_mailbox + this.env.delimiter)
+|| this.env.mailbox.startsWith(this.env.junk_mailbox + this.env.delimiter)
+));
+};
+// Mark all messages as read in:
+//   - selected folder (mode=cur)
+//   - selected folder and its subfolders (mode=sub)
+//   - all folders (mode=all)
+this.mark_all_read = function(mbox, mode)
+{
+var state, content, nodes = [],
+list = this.message_list,
+folder = mbox || this.env.mailbox,
+post_data = {_uid: '*', _flag: 'read', _mbox: folder, _folders: mode};
+if (typeof mode != 'string') {
+state = this.mark_all_read_state(folder);
+if (!state)
+return;
+if (state > 1) {
+// build content of the dialog
+$.each({cur: 1, sub: 2, all: 4}, function(i, v) {
+var label = $('<label>').attr('style', 'display:block; line-height:22px'),
+text = $('<span>').text(ref.get_label('folders-' + i)),
+input = $('<input>').attr({type: 'radio', value: i, name: 'mode'});
+if (!(state & v)) {
+label.attr('class', 'disabled');
+input.attr('disabled', true);
+}
+nodes.push(label.append(input).append(text));
+});
+content = $('<div>').append(nodes);
+$('input:not([disabled]):first', content).attr('checked', true);
+this.show_popup_dialog(content, this.get_label('markallread'),
+[{
+'class': 'mainaction',
+text: this.get_label('mark'),
+click: function() {
+ref.mark_all_read(folder, $('input:checked', this).val());
+$(this).dialog('close');
+}
+},
+{
+text: this.get_label('cancel'),
+click: function() {
+$(this).dialog('close');
+}
+}]
+);
+return;
+}
+post_data._folders = 'cur'; // only current folder has unread messages
+}
+// mark messages on the list
+$.each(list ? list.rows : [], function(uid, row) {
+if (!row.unread)
+return;
+var mbox = ref.env.messages[uid].mbox;
+if (mode == 'all' || mbox == ref.env.mailbox
+|| (mode == 'sub' && mbox.startsWith(ref.env.mailbox + ref.env.delimiter))
+) {
+ref.set_message(uid, 'unread', false);
+}
+});
+// send the request
+this.http_post('mark', post_data, this.display_message(this.get_label('markingmessage'), 'loading'));
+};
+// Enable/disable mark-all-read action depending on folders state
+this.mark_all_read_state = function(mbox)
+{
+var state = 0,
+li = this.treelist.get_item(mbox || this.env.mailbox),
+folder_item = $(li).is('.unread') ? 1 : 0,
+subfolder_items = $('li.unread', li).length,
+all_items = $('li.unread', ref.gui_objects.folderlist).length;
+state += folder_item;
+state += subfolder_items ? 2 : 0;
+state += all_items > folder_item + subfolder_items ? 4 : 0;
+this.enable_command('mark-all-read', state > 0);
+return state;
+};
+/*********************************************************/
+/*********           login form methods          *********/
+/*********************************************************/
+// handler for keyboard events on the _user field
+this.login_user_keyup = function(e)
+{
+var key = rcube_event.get_keycode(e),
+passwd = $('#rcmloginpwd');
+// enter
+if (key == 13 && passwd.length && !passwd.val()) {
+passwd.focus();
+return rcube_event.cancel(e);
+}
+return true;
+};
+/*********************************************************/
+/*********        message compose methods        *********/
+/*********************************************************/
+this.open_compose_step = function(p)
+{
+var url = this.url('mail/compose', p);
+// open new compose window
+if (this.env.compose_extwin && !this.env.extwin) {
+this.open_window(url);
+}
+else {
+this.redirect(url);
+if (this.env.extwin)
+window.resizeTo(Math.max(this.env.popup_width, $(window).width()), $(window).height() + 24);
+}
+};
+// init message compose form: set focus and eventhandlers
+this.init_messageform = function()
+{
+if (!this.gui_objects.messageform)
+return false;
+var i, elem, pos, input_from = $("[name='_from']"),
+input_to = $("[name='_to']"),
+input_subject = $("input[name='_subject']"),
+input_message = $("[name='_message']").get(0),
+html_mode = $("input[name='_is_html']").val() == '1',
+ac_fields = ['cc', 'bcc', 'replyto', 'followupto'],
+ac_props, opener_rc = this.opener();
+// close compose step in opener
+if (opener_rc && opener_rc.env.action == 'compose') {
+setTimeout(function(){
+if (opener.history.length > 1)
+opener.history.back();
+else
+opener_rc.redirect(opener_rc.get_task_url('mail'));
+}, 100);
+this.env.opened_extwin = true;
+}
+// configure parallel autocompletion
+if (this.env.autocomplete_threads > 0) {
+ac_props = {
+threads: this.env.autocomplete_threads,
+sources: this.env.autocomplete_sources
+};
+}
+// init live search events
+this.init_address_input_events(input_to, ac_props);
+for (i in ac_fields) {
+this.init_address_input_events($("[name='_"+ac_fields[i]+"']"), ac_props);
+}
+if (!html_mode) {
+pos = this.env.top_posting && this.env.compose_mode ? 0 : input_message.value.length;
+// add signature according to selected identity
+// if we have HTML editor, signature is added in a callback
+if (input_from.prop('type') == 'select-one') {
+// for some reason the caret initially is not at pos=0 in Firefox 51 (#5628)
+this.set_caret_pos(input_message, 0);
+this.change_identity(input_from[0]);
+}
+// set initial cursor position
+this.set_caret_pos(input_message, pos);
+// 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() == '')
+elem = input_to;
+else if (input_subject.val() == '')
+elem = input_subject;
+else if (input_message)
+elem = input_message;
+// focus first empty element (need to be visible on IE8)
+this.env.compose_focus_elem = $(elem).filter(':visible').focus().get(0);
+// get summary of all field values
+this.compose_field_hash(true);
+// start the auto-save timer
+this.auto_save_start();
+};
+this.compose_restore_dialog = function(j, html_mode)
+{
+var i, key, formdata, index = this.local_storage_get_item('compose.index', []);
+var show_next = function(i) {
+if (++i < index.length)
+ref.compose_restore_dialog(i, html_mode)
+}
+for (i = j || 0; i < index.length; i++) {
+key = index[i];
+formdata = this.local_storage_get_item('compose.' + key, null, true);
+if (!formdata) {
+continue;
+}
+// restore saved copy of current compose_id
+if (formdata.changed && key == this.env.compose_id) {
+this.restore_compose_form(key, html_mode);
+break;
+}
+// skip records from 'other' drafts
+if (this.env.draft_id && formdata.draft_id && formdata.draft_id != this.env.draft_id) {
+continue;
+}
+// skip records on reply
+if (this.env.reply_msgid && formdata.reply_msgid != this.env.reply_msgid) {
+continue;
+}
+// show dialog asking to restore the message
+if (formdata.changed && formdata.session != this.env.session_id) {
+this.show_popup_dialog(
+this.get_label('restoresavedcomposedata')
+.replace('$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 + ' ';
+obj.keydown(function(e) { return ref.ksearch_keydown(e, this, props); })
+.attr({ 'autocomplete': 'off', 'aria-autocomplete': 'list', 'aria-expanded': 'false', 'role': 'combobox' });
+// hide the popup on any click
+$(document).on('click', function() { ref.ksearch_hide(); });
+};
+this.submit_messageform = function(draft, saveonly)
+{
+var form = this.gui_objects.messageform;
+if (!form)
+return;
+// the message has been sent but not saved, ask the user what to do
+if (!saveonly && this.env.is_sent) {
+return this.simple_dialog(this.get_label('messageissent'), '',
+function() {
+ref.submit_messageform(false, true);
+return true;
+}
+);
+}
+// delegate sending to Mailvelope routine
+if (this.mailvelope_editor) {
+return this.mailvelope_submit_messageform(draft, saveonly);
+}
+// all checks passed, send message
+var msgid = this.set_busy(true, draft || saveonly ? 'savingmessage' : 'sendingmessage'),
+lang = this.spellcheck_lang(),
+files = [];
+// send files list
+$('li', this.gui_objects.attachmentlist).each(function() { files.push(this.id.replace(/^rcmfile/, '')); });
+$('input[name="_attachments"]', form).val(files.join());
+form.target = 'savetarget';
+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(){
+ref.set_busy(false, null, msgid);
+ref.display_message(ref.get_label('requesttimedout'), 'error');
+}, this.env.request_timeout * 1000);
+form.submit();
+};
+this.compose_recipient_select = function(list)
+{
+var id, n, recipients = 0;
+for (n=0; n < list.selection.length; n++) {
+id = list.selection[n];
+if (this.env.contactdata[id])
+recipients++;
+}
+this.enable_command('add-recipient', recipients);
+};
+this.compose_add_recipient = function(field)
+{
+// find last focused field name
+if (!field) {
+field = $(this.env.focused_field).filter(':visible');
+field = field.length ? field.attr('id').replace('_', '') : 'to';
+}
+var recipients = [], input = $('#_'+field), delim = this.env.recipients_delimiter;
+if (this.contact_list && this.contact_list.selection.length) {
+for (var id, n=0; n < this.contact_list.selection.length; n++) {
+id = this.contact_list.selection[n];
+if (id && this.env.contactdata[id]) {
+recipients.push(this.env.contactdata[id]);
+// group is added, expand it
+if (id.charAt(0) == 'E' && this.env.contactdata[id].indexOf('@') < 0 && input.length) {
+var gid = id.substr(1);
+this.group2expand[gid] = { name:this.env.contactdata[id], input:input.get(0) };
+this.http_request('group-expand', {_source: this.env.source, _gid: gid}, false);
+}
+}
+}
+}
+if (recipients.length && input.length) {
+var oldval = input.val(), rx = new RegExp(RegExp.escape(delim) + '\\s*$');
+if (oldval && !rx.test(oldval))
+oldval += delim + ' ';
+input.val(oldval + recipients.join(delim + ' ') + delim + ' ').change();
+this.triggerEvent('add-recipient', { field:field, recipients:recipients });
+}
+return recipients.length;
+};
+// checks the input fields before sending a message
+this.check_compose_input = function(cmd)
+{
+// check input fields
+var key, recipients, dialog,
+limit = this.env.max_disclosed_recipients,
+input_to = $("[name='_to']"),
+input_cc = $("[name='_cc']"),
+input_bcc = $("[name='_bcc']"),
+input_from = $("[name='_from']"),
+input_subject = $("[name='_subject']"),
+get_recipients = function(fields) {
+fields = $.map(fields, function(v) {
+v = $.trim(v.val());
+return v.length ? v : null;
+});
+return fields.join(',').replace(/^[\s,;]+/, '').replace(/[\s,;]+$/, '');
+};
+// check sender (if have no identities)
+if (input_from.prop('type') == 'text' && !rcube_check_email(input_from.val(), true)) {
+alert(this.get_label('nosenderwarning'));
+input_from.focus();
+return false;
+}
+// check for empty recipient
+if (!rcube_check_email(get_recipients([input_to, input_cc, input_bcc]), true)) {
+alert(this.get_label('norecipientwarning'));
+input_to.focus();
+return false;
+}
+// check if all files has been uploaded
+for (key in this.env.attachments) {
+if (typeof this.env.attachments[key] === 'object' && !this.env.attachments[key].complete) {
+alert(this.get_label('notuploadedwarning'));
+return false;
+}
+}
+// check disclosed recipients limit
+if (limit && !this.env.disclosed_recipients_warned
+&& rcube_check_email(recipients = get_recipients([input_to, input_cc]), true, true) > limit
+) {
+var save_func = function(move_to_bcc) {
+if (move_to_bcc) {
+var bcc = input_bcc.val();
+input_bcc.val((bcc ? (bcc + ', ') : '') + recipients).change();
+input_to.val('').change();
+input_cc.val('').change();
+}
+dialog.dialog('close');
+if (ref.check_compose_input(cmd))
+ref.command(cmd, { nocheck:true });  // repeat command which triggered this
+};
+dialog = this.show_popup_dialog(
+this.get_label('disclosedrecipwarning'),
+this.get_label('disclosedreciptitle'),
+[{
+text: this.get_label('sendmessage'),
+click: function() { save_func(false); },
+'class': 'mainaction'
+}, {
+text: this.get_label('bccinstead'),
+click: function() { save_func(true); }
+}, {
+text: this.get_label('cancel'),
+click: function() { dialog.dialog('close'); }
+}],
+{dialogClass: 'warning'}
+);
+this.env.disclosed_recipients_warned = true;
+return false;
+}
+// display localized warning for missing subject
+if (!this.env.nosubject_warned && input_subject.val() == '') {
+var prompt_value = $('<input>').attr({type: 'text', size: 40}),
+myprompt = $('<div class="prompt">')
+.append($('<div class="message">').text(this.get_label('nosubjectwarning')))
+.append(prompt_value),
+save_func = function() {
+input_subject.val(prompt_value.val());
+dialog.dialog('close');
+if (ref.check_compose_input(cmd))
+ref.command(cmd, { nocheck:true });  // repeat command which triggered this
+};
+dialog = this.show_popup_dialog(
+myprompt,
+this.get_label('nosubjecttitle'),
+[{
+text: this.get_label('sendmessage'),
+click: function() { save_func(); },
+'class': 'mainaction'
+}, {
+text: this.get_label('cancel'),
+click: function() {
+input_subject.focus();
+dialog.dialog('close');
+}
+}],
+{dialogClass: 'warning'}
+);
+prompt_value.select().keydown(function(e) {
+if (e.which == 13) save_func();
+});
+this.env.nosubject_warned = true;
+return false;
+}
+// check for empty body (only possible if not mailvelope encrypted)
+if (!this.mailvelope_editor && !this.editor.get_content() && !confirm(this.get_label('nobodywarning'))) {
+this.editor.focus();
+return false;
+}
+// move body from html editor to textarea (just to be sure, #1485860)
+this.editor.save();
+return true;
+};
+this.toggle_editor = function(props, obj, e)
+{
+// @todo: this should work also with many editors on page
+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
+props.mode = props.html ? 'plain' : 'html';
+$(e.target).filter('select').val(props.mode);
+}
+if (result) {
+// update internal format flag
+$("input[name='_is_html']").val(props.html ? 1 : 0);
+}
+return result;
+};
+// Inserts a predefined response to the compose editor
+this.insert_response = function(key)
+{
+return this.editor.replace(this.env.textresponses[key]);
+};
+/**
+* Open the dialog to save a new canned response
+*/
+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({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>' +
+'<div class="prop block"><label>' + this.get_label('responsetext') + '</label>' +
+'<textarea name="text" id="ffresponsetext" cols="40" rows="8"></textarea></div>' +
+'</form>';
+buttons[this.get_label('save')] = function(e) {
+var name = $('#ffresponsename').val(),
+text = $('#ffresponsetext').val();
+if (!text) {
+$('#ffresponsetext').select();
+return false;
+}
+if (!name)
+name = text.replace(/[\r\n]+/g, ' ').substring(0,40);
+var lock = ref.display_message(ref.get_label('savingresponse'), 'loading');
+ref.http_post('settings/responses', { _insert:1, _name:name, _text:text }, lock);
+$(this).dialog('close');
+};
+buttons[this.get_label('cancel')] = function() {
+$(this).dialog('close');
+};
+this.show_popup_dialog(html, this.get_label('newresponse'), buttons, {button_classes: ['mainaction']});
+$('#ffresponsetext').val(text);
+$('#ffresponsename').select();
+};
+this.add_response_item = function(response)
+{
+var key = response.key;
+this.env.textresponses[key] = response;
+// append to responses list
+if (this.gui_objects.responseslist) {
+var li = $('<li>').appendTo(this.gui_objects.responseslist);
+$('<a>').addClass('insertresponse active')
+.attr('href', '#')
+.attr('rel', key)
+.attr('tabindex', '0')
+.html(this.quote_html(response.name))
+.appendTo(li)
+.mousedown(function(e) {
+return rcube_event.cancel(e);
+})
+.on('mouseup keypress', function(e) {
+if (e.type == 'mouseup' || rcube_event.get_keycode(e) == 13) {
+ref.command('insert-response', $(this).attr('rel'));
+$(document.body).trigger('mouseup');  // hides the menu
+return rcube_event.cancel(e);
+}
+});
+}
+};
+this.edit_responses = function()
+{
+// TODO: implement inline editing of responses
+};
+this.delete_response = function(key)
+{
+if (!key && this.responses_list) {
+var selection = this.responses_list.get_selection();
+key = selection[0];
+}
+// submit delete request
+if (key && confirm(this.get_label('deleteresponseconfirm'))) {
+this.http_post('settings/delete-response', { _key: key }, false);
+}
+};
+// updates spellchecker buttons on state change
+this.spellcheck_state = function()
+{
+var active = this.editor.spellcheck_state();
+$.each(this.buttons.spellcheck || [], function(i, v) {
+$('#' + v.id)[active ? 'addClass' : 'removeClass']('selected');
+});
+return active;
+};
+// get selected language
+this.spellcheck_lang = function()
+{
+return this.editor.get_language();
+};
+this.spellcheck_lang_set = function(lang)
+{
+this.editor.set_language(lang);
+};
+// resume spellchecking, highlight provided mispellings without new ajax request
+this.spellcheck_resume = function(data)
+{
+this.editor.spellcheck_resume(data);
+};
+this.set_draft_id = function(id)
+{
+if (id && id != this.env.draft_id) {
+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;
+$("input[name='_draft_saveid']").val(id);
+// reset history of hidden iframe used for saving draft (#1489643)
+// but don't do this on timer-triggered draft-autosaving (#1489789)
+if (window.frames['savetarget'] && window.frames['savetarget'].history && !this.draft_autosave_submit && !this.mailvelope_editor) {
+window.frames['savetarget'].history.back();
+}
+this.draft_autosave_submit = false;
+}
+// always remove local copy upon saving as draft
+this.remove_compose_data(this.env.compose_id);
+this.compose_skip_unsavedcheck = false;
+};
+this.auto_save_start = function()
+{
+if (this.env.draft_autosave) {
+this.draft_autosave_submit = false;
+this.save_timer = setTimeout(function(){
+ref.draft_autosave_submit = true;  // set auto-saved flag (#1489789)
+ref.command("savedraft");
+}, this.env.draft_autosave * 1000);
+}
+// save compose form content to local storage every 5 seconds
+if (!this.local_save_timer && window.localStorage && this.env.save_localstorage) {
+// track typing activity and only save on changes
+this.compose_type_activity = this.compose_type_activity_last = 0;
+$(document).keypress(function(e) { ref.compose_type_activity++; });
+this.local_save_timer = setInterval(function(){
+if (ref.compose_type_activity > ref.compose_type_activity_last) {
+ref.save_compose_form_local();
+ref.compose_type_activity_last = ref.compose_type_activity;
+}
+}, 5000);
+$(window).on('unload', function() {
+// remove copy from local storage if compose screen is left after warning
+if (!ref.env.server_error)
+ref.remove_compose_data(ref.env.compose_id);
+});
+}
+// check for unsaved changes before leaving the compose page
+if (!window.onbeforeunload) {
+window.onbeforeunload = function() {
+if (!ref.compose_skip_unsavedcheck && ref.cmp_hash != ref.compose_field_hash()) {
+return ref.get_label('notsentwarning');
+}
+};
+}
+// Unlock interface now that saving is complete
+this.busy = false;
+};
+this.compose_field_hash = function(save)
+{
+// check input fields
+var i, id, val, str = '', hash_fields = ['to', 'cc', 'bcc', 'subject'];
+for (i=0; i<hash_fields.length; i++)
+if (val = $('[name="_' + hash_fields[i] + '"]').val())
+str += val + ':';
+str += this.editor.get_content({refresh: false});
+if (this.env.attachments)
+for (id in this.env.attachments)
+str += id;
+// we can't detect changes in the Mailvelope editor so assume it changed
+if (this.mailvelope_editor) {
+str += ';' + new Date().getTime();
+}
+if (save)
+this.cmp_hash = str;
+return str;
+};
+// store the contents of the compose form to localstorage
+this.save_compose_form_local = function()
+{
+// feature is disabled
+if (!this.env.save_localstorage)
+return;
+var formdata = { session:this.env.session_id, changed:new Date().getTime() },
+ed, empty = true;
+// get fresh content from editor
+this.editor.save();
+if (this.env.draft_id) {
+formdata.draft_id = this.env.draft_id;
+}
+if (this.env.reply_msgid) {
+formdata.reply_msgid = this.env.reply_msgid;
+}
+$('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).val() : '';
+if (formdata[elem.name] != '' && elem.type != 'hidden')
+empty = false;
+break;
+case 'select':
+formdata[elem.name] = $('option:checked', elem).val();
+break;
+default:
+formdata[elem.name] = $(elem).val();
+if (formdata[elem.name] != '')
+empty = false;
+}
+});
+if (!empty) {
+var index = this.local_storage_get_item('compose.index', []),
+key = this.env.compose_id;
+if ($.inArray(key, index) < 0) {
+index.push(key);
+}
+this.local_storage_set_item('compose.' + key, formdata, true);
+this.local_storage_set_item('compose.index', index);
+}
+};
+// write stored compose data back to form
+this.restore_compose_form = function(key, html_mode)
+{
+var ed, formdata = this.local_storage_get_item('compose.' + key, true);
+if (formdata && typeof formdata == 'object') {
+$.each(formdata, function(k, value) {
+if (k[0] == '_') {
+var elem = $("*[name='"+k+"']");
+if (elem[0] && elem[0].type == 'checkbox') {
+elem.prop('checked', value != '');
+}
+else {
+elem.val(value);
+}
+}
+});
+// initialize HTML editor
+if ((formdata._is_html == '1' && !html_mode) || (formdata._is_html != '1' && html_mode)) {
+this.command('toggle-editor', {id: this.env.composebody, html: !html_mode, noconvert: true});
+}
+}
+};
+// remove stored compose data from localStorage
+this.remove_compose_data = function(key)
+{
+var index = this.local_storage_get_item('compose.index', []);
+if ($.inArray(key, index) >= 0) {
+this.local_storage_remove_item('compose.' + key);
+this.local_storage_set_item('compose.index', $.grep(index, function(val,i) { return val != key; }));
+}
+};
+// clear all stored compose data of this user
+this.clear_compose_data = function()
+{
+var i, index = this.local_storage_get_item('compose.index', []);
+for (i=0; i < index.length; i++) {
+this.local_storage_remove_item('compose.' + index[i]);
+}
+this.local_storage_remove_item('compose.index');
+};
+this.change_identity = function(obj, show_sig)
+{
+if (!obj || !obj.options)
+return false;
+if (!show_sig)
+show_sig = this.env.show_sig;
+var id = obj.options[obj.selectedIndex].value,
+sig = this.env.identity,
+delim = this.env.recipients_separator,
+rx_delim = RegExp.escape(delim);
+// enable manual signature insert
+if (this.env.signatures && this.env.signatures[id]) {
+this.enable_command('insert-sig', true);
+this.env.compose_commands.push('insert-sig');
+}
+else
+this.enable_command('insert-sig', false);
+// first function execution
+if (!this.env.identities_initialized) {
+this.env.identities_initialized = true;
+if (this.env.show_sig_later)
+this.env.show_sig = true;
+if (this.env.opened_extwin)
+return;
+}
+// update reply-to/bcc fields with addresses defined in identities
+$.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 = $('[name="_'+key+'"]'), input_val = input.val();
+// remove old address(es)
+if (old_val && input_val) {
+rx = new RegExp('\\s*' + RegExp.escape(old_val) + '\\s*');
+input_val = input_val.replace(rx, '');
+}
+// cleanup
+rx = new RegExp(rx_delim + '\\s*' + rx_delim, 'g');
+input_val = String(input_val).replace(rx, delim);
+rx = new RegExp('^[\\s' + rx_delim + ']+');
+input_val = input_val.replace(rx, '');
+// add new address(es)
+if (new_val && input_val.indexOf(new_val) == -1 && input_val.indexOf(new_val.replace(/"/g, '')) == -1) {
+if (input_val) {
+rx = new RegExp('[' + rx_delim + '\\s]+$')
+input_val = input_val.replace(rx, '') + delim + ' ';
+}
+input_val += new_val + delim + ' ';
+}
+if (old_val || new_val)
+input.val(input_val).change();
+});
+this.editor.change_signature(id, show_sig);
+this.env.identity = id;
+this.triggerEvent('change_identity');
+return true;
+};
+// Open file selection dialog for defined upload form
+// Works only on click and only with smart-upload forms
+this.upload_input = function(name)
+{
+$('#' + name + ' input[type="file"]').click();
+};
+// upload (attachment) file
+this.upload_file = function(form, action, lock)
+{
+if (!form)
+return;
+// count files and size on capable browser
+var size = 0, numfiles = 0;
+$.each($(form).get(0).elements || [], function() {
+if (this.type != 'file')
+return;
+var i, files = this.files ? this.files.length : (this.value ? 1 : 0);
+// check file size
+if (this.files) {
+for (i=0; i < files; i++)
+size += this.files[i].size;
+}
+numfiles += files;
+});
+// create hidden iframe and post upload form
+if (numfiles) {
+if (this.env.max_filesize && this.env.filesizeerror && size > this.env.max_filesize) {
+this.display_message(this.env.filesizeerror, 'error');
+return false;
+}
+if (this.env.max_filecount && this.env.filecounterror && numfiles > this.env.max_filecount) {
+this.display_message(this.env.filecounterror, 'error');
+return false;
+}
+var frame_name = this.async_upload_form(form, action || 'upload', function(e) {
+var d, content = '';
+try {
+if (this.contentDocument) {
+d = this.contentDocument;
+} else if (this.contentWindow) {
+d = this.contentWindow.document;
+}
+content = d.childNodes[1].innerHTML;
+} catch (err) {}
+if (!content.match(/add2attachment/) && (!bw.opera || (ref.env.uploadframe && ref.env.uploadframe == e.data.ts))) {
+if (!content.match(/display_message/))
+ref.display_message(ref.get_label('fileuploaderror'), 'error');
+ref.remove_from_attachment_list(e.data.ts);
+if (lock)
+ref.set_busy(false, null, lock);
+}
+// Opera hack: handle double onload
+if (bw.opera)
+ref.env.uploadframe = e.data.ts;
+});
+// display upload indicator and cancel button
+var content = '<span>' + this.get_label('uploading' + (numfiles > 1 ? 'many' : '')) + '</span>',
+ts = frame_name.replace(/^rcmupload/, '');
+this.add2attachment_list(ts, { name:'', html:content, classname:'uploading', frame:frame_name, complete:false });
+// upload progress support
+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;
+}
+};
+// add file name to attachment list
+// called from upload page
+this.add2attachment_list = function(name, att, upload_id)
+{
+if (upload_id)
+this.triggerEvent('fileuploaded', {name: name, attachment: att, id: upload_id});
+if (!this.env.attachments)
+this.env.attachments = {};
+if (upload_id && this.env.attachments[upload_id])
+delete this.env.attachments[upload_id];
+this.env.attachments[name] = att;
+if (!this.gui_objects.attachmentlist)
+return false;
+if (!att.complete && this.env.loadingicon)
+att.html = '<img src="'+this.env.loadingicon+'" alt="" class="uploading" />' + att.html;
+if (!att.complete && att.frame)
+att.html = '<a title="'+this.get_label('cancel')+'" onclick="return rcmail.cancel_attachment_upload(\''+name+'\', \''+att.frame+'\');" href="#cancelupload" class="cancelupload">'
++ (this.env.cancelicon ? '<img src="'+this.env.cancelicon+'" alt="'+this.get_label('cancel')+'" />' : this.get_label('cancel')) + '</a>' + att.html;
+var indicator, li = $('<li>');
+li.attr('id', name)
+.addClass(att.classname)
+.html(att.html)
+.on('mouseover', function() { rcube_webmail.long_subject_title_ex(this); });
+// replace indicator's li
+if (upload_id && (indicator = document.getElementById(upload_id))) {
+li.replaceAll(indicator);
+}
+else { // add new li
+li.appendTo(this.gui_objects.attachmentlist);
+}
+// set tabindex attribute
+var tabindex = $(this.gui_objects.attachmentlist).attr('data-tabindex') || '0';
+li.find('a').attr('tabindex', tabindex);
+this.triggerEvent('fileappended', {name: name, attachment: att, id: upload_id, item: li});
+return true;
+};
+this.remove_from_attachment_list = function(name)
+{
+if (this.env.attachments) {
+delete this.env.attachments[name];
+$('#'+name).remove();
+}
+};
+this.remove_attachment = function(name)
+{
+if (name && this.env.attachments[name])
+this.http_post('remove-attachment', { _id:this.env.compose_id, _file:name });
+return false;
+};
+this.cancel_attachment_upload = function(name, frame_name)
+{
+if (!name || !frame_name)
+return false;
+this.remove_from_attachment_list(name);
+$("iframe[name='"+frame_name+"']").remove();
+return false;
+};
+this.upload_progress_start = function(action, name)
+{
+setTimeout(function() { ref.http_request(action, {_progress: name}); },
+this.env.upload_progress_time * 1000);
+};
+this.upload_progress_update = function(param)
+{
+var elem = $('#'+param.name + ' > span');
+if (!elem.length || !param.text)
+return;
+elem.text(param.text);
+if (!param.done)
+this.upload_progress_start(param.action, param.name);
+};
+// rename uploaded attachment (in compose)
+this.rename_attachment = function(id)
+{
+var attachment = this.env.attachments ? this.env.attachments[id] : null;
+if (!attachment)
+return;
+var input = $('<input>').attr({type: 'text', size: 50}).val(attachment.name),
+content = $('<label>').text(this.get_label('namex')).append(input);
+this.simple_dialog(content, 'attachmentrename', function() {
+var name;
+if ((name = input.val()) && name != attachment.name) {
+ref.http_post('rename-attachment', {_id: ref.env.compose_id, _file: id, _name: name},
+ref.set_busy(true, 'loading'));
+return true;
+}
+},
+{open: function() { input.select(); }}
+);
+};
+// update attachments list with the new name
+this.rename_attachment_handler = function(id, name)
+{
+var attachment = this.env.attachments ? this.env.attachments[id] : null,
+item = $('#' + id + ' > a.filename'),
+link = $('<a>');
+if (!attachment || !name)
+return;
+attachment.name = name;
+// update attachments list
+if (item.length == 1) {
+// create a new element with new attachment name and cloned size
+link.text(name).append($('span', item).clone());
+// update attachment name element
+item.html(link.html());
+// reset parent's title which may contain the old name
+item.parent().attr('title', '');
+}
+};
+// send remote request to add a new contact
+this.add_contact = function(value)
+{
+if (value)
+this.http_post('addcontact', {_address: value});
+return true;
+};
+// send remote request to search mail or contacts
+this.qsearch = function(value)
+{
+// Note: Some plugins would like to do search without value,
+// so we keep value != '' check to allow that use-case. Which means
+// e.g. that qsearch() with no argument will execute the search.
+if (value != '' || $(this.gui_objects.qsearchbox).val() || $(this.gui_objects.search_interval).val()) {
+var r, lock = this.set_busy(true, 'searching'),
+url = this.search_params(value),
+action = this.env.action == 'compose' && this.contact_list ? 'search-contacts' : 'search';
+if (this.message_list)
+this.clear_message_list();
+else if (this.contact_list)
+this.list_contacts_clear();
+if (this.env.source)
+url._source = this.env.source;
+if (this.env.group)
+url._gid = this.env.group;
+// reset vars
+this.env.current_page = 1;
+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');
+return true;
+}
+return false;
+};
+this.continue_search = function(request_id)
+{
+var lock = this.set_busy(true, 'stillsearching');
+setTimeout(function() {
+var url = ref.search_params();
+url._continue = request_id;
+ref.env.qsearch = { lock: lock, request: ref.http_request('search', url, lock) };
+}, 100);
+};
+// build URL params for search
+this.search_params = function(search, filter)
+{
+var n, url = {}, mods_arr = [],
+mods = this.env.search_mods,
+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;
+if (!search && this.gui_objects.qsearchbox)
+search = this.gui_objects.qsearchbox.value;
+if (filter)
+url._filter = filter;
+if (this.gui_objects.search_interval)
+url._interval = $(this.gui_objects.search_interval).val();
+if (search) {
+url._q = search;
+if (mods && this.message_list)
+mods = mods[mbox] || mods['*'];
+if (mods) {
+for (n in mods)
+mods_arr.push(n);
+url._headers = mods_arr.join(',');
+}
+}
+if (scope)
+url._scope = scope;
+if (mbox && scope != 'all')
+url._mbox = mbox;
+return url;
+};
+// reset search filter
+this.reset_search_filter = function()
+{
+this.filter_disabled = true;
+if (this.gui_objects.search_filter)
+$(this.gui_objects.search_filter).val('ALL').change();
+this.filter_disabled = false;
+};
+// reset quick-search form
+this.reset_qsearch = function(all)
+{
+if (this.gui_objects.qsearchbox)
+this.gui_objects.qsearchbox.value = '';
+if (this.gui_objects.search_interval)
+$(this.gui_objects.search_interval).val('');
+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;
+this.env.search_id = null;
+this.select_all_mode = false;
+this.enable_command('set-listmode', this.env.threads);
+};
+this.set_searchscope = function(scope)
+{
+var old = this.env.search_scope;
+this.env.search_scope = scope;
+// re-send search query with new scope
+if (scope != old && this.env.search_request) {
+if (!this.qsearch(this.gui_objects.qsearchbox.value) && this.env.search_filter && this.env.search_filter != 'ALL')
+this.filter_mailbox(this.env.search_filter);
+if (scope != 'all')
+this.select_folder(this.env.mailbox, '', true);
+}
+};
+this.set_searchinterval = function(interval)
+{
+var old = this.env.search_interval;
+this.env.search_interval = interval;
+// re-send search query with new interval
+if (interval != old && this.env.search_request) {
+if (!this.qsearch(this.gui_objects.qsearchbox.value) && this.env.search_filter && this.env.search_filter != 'ALL')
+this.filter_mailbox(this.env.search_filter);
+if (interval)
+this.select_folder(this.env.mailbox, '', true);
+}
+};
+this.set_searchmods = function(mods)
+{
+var mbox = this.env.mailbox,
+scope = this.env.search_scope || 'base';
+if (scope == 'all')
+mbox = '*';
+if (!this.env.search_mods)
+this.env.search_mods = {};
+if (mbox)
+this.env.search_mods[mbox] = mods;
+};
+this.is_multifolder_listing = function()
+{
+return this.env.multifolder_listing !== undefined ? this.env.multifolder_listing :
+(this.env.search_request && (this.env.search_scope || 'base') != 'base');
+};
+// 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) {
+if (!save_error)
+this.lock_form(this.gui_objects.messageform);
+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 && $.inArray(rc.env.mailbox, folders) >= 0) {
+rc.command('checkmail');
+}
+}
+if (!save_error)
+setTimeout(function() { window.close(); }, 1000);
+}
+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;
+};
+/*********************************************************/
+/*********     keyboard live-search methods      *********/
+/*********************************************************/
+// handler for keyboard events on address-fields
+this.ksearch_keydown = function(e, obj, props)
+{
+if (this.ksearch_timer)
+clearTimeout(this.ksearch_timer);
+var key = rcube_event.get_keycode(e);
+switch (key) {
+case 38:  // arrow up
+case 40:  // arrow down
+if (!this.ksearch_visible())
+return;
+var dir = key == 38 ? 1 : 0,
+highlight = document.getElementById('rcmkSearchItem' + this.ksearch_selected);
+if (!highlight)
+highlight = this.ksearch_pane.__ul.firstChild;
+if (highlight)
+this.ksearch_select(dir ? highlight.previousSibling : highlight.nextSibling);
+return rcube_event.cancel(e);
+case 9:   // tab
+if (rcube_event.get_modifier(e) == SHIFT_KEY || !this.ksearch_visible()) {
+this.ksearch_hide();
+return;
+}
+case 13:  // enter
+if (!this.ksearch_visible())
+return false;
+// insert selected address and hide ksearch pane
+this.insert_recipient(this.ksearch_selected);
+this.ksearch_hide();
+// Don't cancel on Tab, we want to jump to the next field (#5659)
+return key == 9 ? null : rcube_event.cancel(e);
+case 27:  // escape
+this.ksearch_hide();
+return;
+case 37:  // left
+case 39:  // right
+return;
+}
+// start timer
+this.ksearch_timer = setTimeout(function(){ ref.ksearch_get_results(props); }, 200);
+this.ksearch_input = obj;
+return true;
+};
+this.ksearch_visible = function()
+{
+return this.ksearch_selected !== null && this.ksearch_selected !== undefined && this.ksearch_value;
+};
+this.ksearch_select = function(node)
+{
+if (this.ksearch_pane && node) {
+this.ksearch_pane.find('li.selected').removeClass('selected').removeAttr('aria-selected');
+}
+if (node) {
+$(node).addClass('selected').attr('aria-selected', 'true');
+this.ksearch_selected = node._rcm_id;
+$(this.ksearch_input).attr('aria-activedescendant', 'rcmkSearchItem' + this.ksearch_selected);
+}
+};
+this.insert_recipient = function(id)
+{
+if (id === null || !this.env.contacts[id] || !this.ksearch_input)
+return;
+// get cursor pos
+var inp_value = this.ksearch_input.value,
+cpos = this.get_caret_pos(this.ksearch_input),
+p = inp_value.lastIndexOf(this.ksearch_value, cpos),
+trigger = false,
+insert = '',
+// replace search string with full address
+pre = inp_value.substring(0, p),
+end = inp_value.substring(p+this.ksearch_value.length, inp_value.length);
+this.ksearch_destroy();
+// insert all members of a 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);
+}
+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;
+trigger = true;
+}
+this.ksearch_input.value = pre + insert + end;
+// set caret to insert pos
+this.set_caret_pos(this.ksearch_input, p + insert.length);
+if (trigger) {
+this.triggerEvent('autocomplete_insert', { field:this.ksearch_input, insert:insert, data:this.env.contacts[id], search:this.ksearch_value_last, result_type:'person' });
+this.ksearch_value_last = null;
+this.compose_type_activity++;
+}
+};
+this.replace_group_recipients = function(id, recipients)
+{
+if (this.group2expand[id]) {
+this.group2expand[id].input.value = this.group2expand[id].input.value.replace(this.group2expand[id].name, recipients);
+this.triggerEvent('autocomplete_insert', { field:this.group2expand[id].input, insert:recipients, data:this.group2expand[id], search:this.ksearch_value_last, result_type:'group' });
+this.ksearch_value_last = null;
+this.group2expand[id] = null;
+this.compose_type_activity++;
+}
+};
+// address search processor
+this.ksearch_get_results = function(props)
+{
+var inp_value = this.ksearch_input ? this.ksearch_input.value : null;
+if (inp_value === null)
+return;
+if (this.ksearch_pane && this.ksearch_pane.is(":visible"))
+this.ksearch_pane.hide();
+// get string from current cursor pos to last comma
+var cpos = this.get_caret_pos(this.ksearch_input),
+p = inp_value.lastIndexOf(this.env.recipients_separator, cpos-1),
+q = inp_value.substring(p+1, cpos),
+min = this.env.autocomplete_min_length,
+data = this.ksearch_data;
+// trim query string
+q = $.trim(q);
+// Don't (re-)search if the last results are still active
+if (q == this.ksearch_value)
+return;
+this.ksearch_destroy();
+if (q.length && q.length < min) {
+if (!this.ksearch_info) {
+this.ksearch_info = this.display_message(
+this.get_label('autocompletechars').replace('$min', min));
+}
+return;
+}
+var old_value = this.ksearch_value;
+this.ksearch_value = q;
+this.ksearch_value_last = q;   // Group expansion clears ksearch_value before calling autocomplete_insert trigger, therefore store it in separate variable for later consumption.
+// ...string is empty
+if (!q.length)
+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) && (!data || data.num <= 0) && this.env.contacts && !this.env.contacts.length)
+return;
+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(), 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;
+// ignore this outdated search response
+if (this.ksearch_input && search != this.ksearch_value)
+return;
+// display search results
+var i, id, len, ul, text, type, init,
+value = this.ksearch_value,
+maxlen = this.env.autocomplete_max ? this.env.autocomplete_max : 15;
+// create results pane if not present
+if (!this.ksearch_pane) {
+ul = $('<ul>');
+this.ksearch_pane = $('<div>').attr('id', 'rcmKSearchpane').attr('role', 'listbox')
+.css({ position:'absolute', 'z-index':30000 }).append(ul).appendTo(document.body);
+this.ksearch_pane.__ul = ul[0];
+}
+ul = this.ksearch_pane.__ul;
+// remove all search results or add to existing list if parallel search
+if (reqid && this.ksearch_pane.data('reqid') == reqid) {
+maxlen -= ul.childNodes.length;
+}
+else {
+this.ksearch_pane.data('reqid', reqid);
+init = 1;
+// reset content
+ul.innerHTML = '';
+this.env.contacts = [];
+// move the results pane right under the input box
+var pos = $(this.ksearch_input).offset();
+this.ksearch_pane.css({ left:pos.left+'px', top:(pos.top + this.ksearch_input.offsetHeight)+'px', display: 'none'});
+}
+// add each result line to list
+if (results && (len = results.length)) {
+for (i=0; i < len && maxlen > 0; i++) {
+text = typeof results[i] === 'object' ? (results[i].display || results[i].name) : results[i];
+type = typeof results[i] === 'object' ? results[i].type : '';
+id = i + this.env.contacts.length;
+$('<li>').attr('id', 'rcmkSearchItem' + id)
+.attr('role', 'option')
+.html('<i class="icon"></i>' + this.quote_html(text.replace(new RegExp('('+RegExp.escape(value)+')', 'ig'), '##$1%%')).replace(/##([^%]+)%%/g, '<b>$1</b>'))
+.addClass(type || '')
+.appendTo(ul)
+.mouseover(function() { ref.ksearch_select(this); })
+.mouseup(function() { ref.ksearch_click(this); })
+.get(0)._rcm_id = id;
+maxlen -= 1;
+}
+}
+if (ul.childNodes.length) {
+// set the right aria-* attributes to the input field
+$(this.ksearch_input)
+.attr('aria-haspopup', 'true')
+.attr('aria-expanded', 'true')
+.attr('aria-owns', 'rcmKSearchpane');
+this.ksearch_pane.show();
+// select the first
+if (!this.env.contacts.length) {
+this.ksearch_select($('li:first', ul).get(0));
+}
+}
+if (len)
+this.env.contacts = this.env.contacts.concat(results);
+if (this.ksearch_data.id == reqid)
+this.ksearch_data.num--;
+};
+this.ksearch_click = function(node)
+{
+if (this.ksearch_input)
+this.ksearch_input.focus();
+this.insert_recipient(node._rcm_id);
+this.ksearch_hide();
+};
+this.ksearch_blur = function()
+{
+if (this.ksearch_timer)
+clearTimeout(this.ksearch_timer);
+this.ksearch_input = null;
+this.ksearch_hide();
+};
+this.ksearch_hide = function()
+{
+this.ksearch_selected = null;
+this.ksearch_value = '';
+if (this.ksearch_pane)
+this.ksearch_pane.hide();
+$(this.ksearch_input)
+.attr('aria-haspopup', 'false')
+.attr('aria-expanded', 'false')
+.removeAttr('aria-activedescendant')
+.removeAttr('aria-owns');
+this.ksearch_destroy();
+};
+// Clears autocomplete data/requests
+this.ksearch_destroy = function()
+{
+if (this.ksearch_data)
+this.multi_thread_request_abort(this.ksearch_data.id);
+if (this.ksearch_info)
+this.hide_message(this.ksearch_info);
+if (this.ksearch_msg)
+this.hide_message(this.ksearch_msg);
+this.ksearch_data = null;
+this.ksearch_info = null;
+this.ksearch_msg = null;
+};
+/*********************************************************/
+/*********         address book methods          *********/
+/*********************************************************/
+this.contactlist_keypress = function(list)
+{
+if (list.key_pressed == list.DELETE_KEY)
+this.command('delete');
+};
+this.contactlist_select = function(list)
+{
+if (this.preview_timer)
+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 50 instead of this.dblclick_time
+if (this.env.contentframe && !list.multi_selecting && (id = list.get_single_selection()))
+this.preview_timer = setTimeout(function() { ref.load_contact(id, 'show'); }, this.preview_delay_click);
+else if (this.env.contentframe)
+this.show_contentframe(false);
+if (selected) {
+list.draggable = false;
+// no source = search result, we'll need to detect if any of
+// selected contacts are in writable addressbook to enable edit/delete
+// we'll also need to know sources used in selection for copy
+// and group-addmember operations (drag&drop)
+this.env.selection_sources = [];
+if (source) {
+this.env.selection_sources.push(this.env.source);
+}
+for (n in list.selection) {
+contact = list.data[list.selection[n]];
+if (!source) {
+sid = String(list.selection[n]).replace(/^[^-]+-/, '');
+if (sid && this.env.address_sources[sid]) {
+writable = writable || (!this.env.address_sources[sid].readonly && !contact.readonly);
+this.env.selection_sources.push(sid);
+}
+}
+else {
+writable = writable || (!source.readonly && !contact.readonly);
+}
+if (contact._type != 'group')
+list.draggable = true;
+}
+this.env.selection_sources = $.unique(this.env.selection_sources);
+}
+// if a group is currently selected, and there is at least one contact selected
+// thend we can enable the group-remove-selected command
+this.enable_command('group-remove-selected', this.env.group && selected && writable);
+this.enable_command('compose', this.env.group || selected);
+this.enable_command('print', selected == 1);
+this.enable_command('export-selected', 'copy', selected > 0);
+this.enable_command('edit', id && writable);
+this.enable_command('delete', 'move', selected && writable);
+return false;
+};
+this.list_contacts = function(src, group, page, search)
+{
+var win, folder, index = -1, url = {},
+refresh = src === undefined && group === undefined && page === undefined,
+target = window;
+if (!src)
+src = this.env.source;
+if (refresh)
+group = this.env.group;
+if (src != this.env.source) {
+page = this.env.current_page = 1;
+this.reset_qsearch();
+}
+else if (!refresh && group != this.env.group)
+page = this.env.current_page = 1;
+if (this.env.search_id)
+folder = 'S'+this.env.search_id;
+else if (!this.env.search_request)
+folder = group ? 'G'+src+group : src;
+this.env.source = src;
+this.env.group = group;
+// truncate groups listing stack
+$.each(this.env.address_group_stack, function(i, v) {
+if (ref.env.group == v.id) {
+index = i;
+return false;
+}
+});
+this.env.address_group_stack = index < 0 ? [] : this.env.address_group_stack.slice(0, index);
+// make sure the current group is on top of the stack
+if (this.env.group) {
+if (!search) search = {};
+search.id = this.env.group;
+this.env.address_group_stack.push(search);
+// mark the first group on the stack as selected in the directory list
+folder = 'G'+src+this.env.address_group_stack[0].id;
+}
+else if (this.gui_objects.addresslist_title) {
+$(this.gui_objects.addresslist_title).text(this.get_label('contacts'));
+}
+if (!this.env.search_id)
+this.select_folder(folder, '', true);
+// load contacts remotely
+if (this.gui_objects.contactslist) {
+this.list_contacts_remote(src, group, page);
+return;
+}
+if (win = this.get_frame_window(this.env.contentframe)) {
+target = win;
+url._framed = 1;
+}
+if (group)
+url._gid = group;
+if (page)
+url._page = page;
+if (src)
+url._source = src;
+// also send search request to get the correct listing
+if (this.env.search_request)
+url._search = this.env.search_request;
+this.set_busy(true, 'loading');
+this.location_href(url, target);
+};
+// send remote request to load contacts list
+this.list_contacts_remote = function(src, group, page)
+{
+// clear message list first
+this.list_contacts_clear();
+// send request to server
+var url = {}, lock = this.set_busy(true, 'loading');
+if (src)
+url._source = src;
+if (page)
+url._page = page;
+if (group)
+url._gid = group;
+this.env.source = src;
+this.env.group = group;
+// also send search request to get the right records
+if (this.env.search_request)
+url._search = this.env.search_request;
+this.http_request(this.env.task == 'mail' ? 'list-contacts' : 'list', url, lock);
+if (this.env.task != 'mail')
+this.update_state({_source: src, _page: page && page > 1 ? page : null, _gid: group});
+};
+this.list_contacts_clear = function()
+{
+this.contact_list.data = {};
+this.contact_list.clear(true);
+this.show_contentframe(false);
+this.enable_command('delete', 'move', 'copy', 'print', false);
+this.enable_command('compose', this.env.group);
+};
+this.set_group_prop = function(prop)
+{
+if (this.gui_objects.addresslist_title) {
+var boxtitle = $(this.gui_objects.addresslist_title).html('');  // clear contents
+// add link to pop back to parent group
+if (this.env.address_group_stack.length > 1
+|| (this.env.address_group_stack.length == 1 && this.env.address_group_stack[0].search_request)
+) {
+$('<a href="#list">...</a>')
+.attr('title', this.get_label('uponelevel'))
+.addClass('poplink')
+.appendTo(boxtitle)
+.click(function(e){ return ref.command('popgroup','',this); });
+boxtitle.append('&nbsp;&raquo;&nbsp;');
+}
+boxtitle.append($('<span>').text(prop ? prop.name : this.get_label('contacts')));
+}
+};
+// load contact record
+this.load_contact = function(cid, action, framed)
+{
+var win, url = {}, target = window,
+rec = this.contact_list ? this.contact_list.data[cid] : null;
+if (win = this.get_frame_window(this.env.contentframe)) {
+url._framed = 1;
+target = win;
+this.show_contentframe(true);
+// load dummy content, unselect selected row(s)
+if (!cid)
+this.contact_list.clear_selection();
+this.enable_command('compose', rec && rec.email);
+this.enable_command('export-selected', 'print', rec && rec._type != 'group');
+}
+else if (framed)
+return false;
+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;
+url._cid = cid;
+this.location_href(url, target, true);
+}
+return true;
+};
+// add/delete member to/from the group
+this.group_member_change = function(what, cid, source, gid)
+{
+if (what != 'add')
+what = 'del';
+var label = this.get_label(what == 'add' ? 'addingmember' : 'removingmember'),
+lock = this.display_message(label, 'loading'),
+post_data = {_cid: cid, _source: source, _gid: gid};
+this.http_post('group-'+what+'members', post_data, lock);
+};
+this.contacts_drag_menu = function(e, to)
+{
+var dest = to.type == 'group' ? to.source : to.id,
+source = this.env.source;
+if (!this.env.address_sources[dest] || this.env.address_sources[dest].readonly)
+return true;
+// search result may contain contacts from many sources, but if there is only one...
+if (source == '' && this.env.selection_sources.length == 1)
+source = this.env.selection_sources[0];
+if (to.type == 'group' && dest == source) {
+var cid = this.contact_list.get_selection().join(',');
+this.group_member_change('add', cid, dest, to.id);
+return true;
+}
+// move action is not possible, "redirect" to copy if menu wasn't requested
+else if (!this.commands.move && rcube_event.get_modifier(e) != SHIFT_KEY) {
+this.copy_contacts(to);
+return true;
+}
+return this.drag_menu(e, to);
+};
+// copy contact(s) to the specified target (group or directory)
+this.copy_contacts = function(to)
+{
+var dest = to.type == 'group' ? to.source : to.id,
+source = this.env.source,
+group = this.env.group ? this.env.group : '',
+cid = this.contact_list.get_selection().join(',');
+if (!cid || !this.env.address_sources[dest] || this.env.address_sources[dest].readonly)
+return;
+// search result may contain contacts from many sources, but if there is only one...
+if (source == '' && this.env.selection_sources.length == 1)
+source = this.env.selection_sources[0];
+// tagret is a group
+if (to.type == 'group') {
+if (dest == source)
+return;
+var lock = this.display_message(this.get_label('copyingcontact'), 'loading'),
+post_data = {_cid: cid, _source: this.env.source, _to: dest, _togid: to.id, _gid: group};
+this.http_post('copy', post_data, lock);
+}
+// target is an addressbook
+else if (to.id != source) {
+var lock = this.display_message(this.get_label('copyingcontact'), 'loading'),
+post_data = {_cid: cid, _source: this.env.source, _to: to.id, _gid: group};
+this.http_post('copy', post_data, lock);
+}
+};
+// move contact(s) to the specified target (group or directory)
+this.move_contacts = function(to)
+{
+var dest = to.type == 'group' ? to.source : to.id,
+source = this.env.source,
+group = this.env.group ? this.env.group : '';
+if (!this.env.address_sources[dest] || this.env.address_sources[dest].readonly)
+return;
+// search result may contain contacts from many sources, but if there is only one...
+if (source == '' && this.env.selection_sources.length == 1)
+source = this.env.selection_sources[0];
+if (to.type == 'group') {
+if (dest == source)
+return;
+this._with_selected_contacts('move', {_to: dest, _togid: to.id});
+}
+// target is an addressbook
+else if (to.id != source)
+this._with_selected_contacts('move', {_to: to.id});
+};
+// delete contact(s)
+this.delete_contacts = function()
+{
+var undelete = this.env.source && this.env.address_sources[this.env.source].undelete;
+if (!undelete && !confirm(this.get_label('deletecontactconfirm')))
+return;
+return this._with_selected_contacts('delete');
+};
+this._with_selected_contacts = function(action, post_data)
+{
+var selection = this.contact_list ? this.contact_list.get_selection() : [];
+// exit if no contact specified or if selection is empty
+if (!selection.length && !this.env.cid)
+return;
+var n, a_cids = [],
+label = action == 'delete' ? 'contactdeleting' : 'movingcontact',
+lock = this.display_message(this.get_label(label), 'loading');
+if (this.env.cid)
+a_cids.push(this.env.cid);
+else {
+for (n=0; n<selection.length; n++) {
+id = selection[n];
+a_cids.push(id);
+this.contact_list.remove_row(id, (n == selection.length-1));
+}
+// hide content frame if we delete the currently displayed contact
+if (selection.length == 1)
+this.show_contentframe(false);
+}
+if (!post_data)
+post_data = {};
+post_data._source = this.env.source;
+post_data._from = this.env.action;
+post_data._cid = a_cids.join(',');
+if (this.env.group)
+post_data._gid = this.env.group;
+// also send search request to get the right records from the next page
+if (this.env.search_request)
+post_data._search = this.env.search_request;
+// send request to server
+this.http_post(action, post_data, lock)
+return true;
+};
+// update a contact record in the list
+this.update_contact_row = function(cid, cols_arr, newcid, source, data)
+{
+var list = this.contact_list;
+cid = this.html_identifier(cid);
+// when in searching mode, concat cid with the source name
+if (!list.rows[cid]) {
+cid = cid + '-' + source;
+if (newcid)
+newcid = newcid + '-' + source;
+}
+list.update_row(cid, cols_arr, newcid, true);
+list.data[cid] = data;
+};
+// add row to contacts list
+this.add_contact_row = function(cid, cols, classes, data)
+{
+if (!this.gui_objects.contactslist)
+return false;
+var c, col, list = this.contact_list,
+row = { cols:[] };
+row.id = 'rcmrow' + this.html_identifier(cid);
+row.className = 'contact ' + (classes || '');
+if (list.in_selection(cid))
+row.className += ' selected';
+// add each submitted col
+for (c in cols) {
+col = {};
+col.className = String(c).toLowerCase();
+col.innerHTML = cols[c];
+row.cols.push(col);
+}
+// store data in list member
+list.data[cid] = data;
+list.insert_row(row);
+this.enable_command('export', list.rowcount > 0);
+};
+this.init_contact_form = function()
+{
+var col;
+if (this.env.coltypes) {
+this.set_photo_actions($('#ff_photo').val());
+for (col in this.env.coltypes)
+this.init_edit_field(col, null);
+}
+$('.contactfieldgroup .row a.deletebutton').click(function() {
+ref.delete_edit_field(this);
+return false;
+});
+$('select.addfieldmenu').change(function() {
+ref.insert_edit_field($(this).val(), $(this).attr('rel'), this);
+this.selectedIndex = 0;
+});
+// enable date pickers on date fields
+if ($.datepicker && this.env.date_format) {
+$.datepicker.setDefaults({
+dateFormat: this.env.date_format,
+changeMonth: true,
+changeYear: true,
+yearRange: '-120:+10',
+showOtherMonths: true,
+selectOtherMonths: true
+//        onSelect: function(dateText) { $(this).focus().val(dateText); }
+});
+$('input.datepicker').datepicker();
+}
+// Submit search form on Enter
+if (this.env.action == 'search')
+$(this.gui_objects.editform).append($('<input type="submit">').hide())
+.submit(function() { $('input.mainaction').click(); return false; });
+};
+// group creation dialog
+this.group_create = function()
+{
+var input = $('<input>').attr('type', 'text'),
+content = $('<label>').text(this.get_label('namex')).append(input),
+source = this.env.source;
+this.simple_dialog(content, 'newgroup',
+function() {
+var name;
+if (name = input.val()) {
+ref.http_post('group-create', {_source: source, _name: name},
+ref.set_busy(true, 'loading'));
+return true;
+}
+});
+};
+// group rename dialog
+this.group_rename = function()
+{
+if (!this.env.group)
+return;
+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),
+source = this.env.source,
+group = this.env.group;
+this.simple_dialog(content, 'grouprename',
+function() {
+var name;
+if ((name = input.val()) && name != group_name) {
+ref.http_post('group-rename', {_source: source, _gid: group, _name: name},
+ref.set_busy(true, 'loading'));
+return true;
+}
+},
+{open: function() { input.select(); }}
+);
+};
+this.group_delete = function()
+{
+if (this.env.group && confirm(this.get_label('deletegroupconfirm'))) {
+var lock = this.set_busy(true, 'groupdeleting');
+this.http_post('group-delete', {_source: this.env.source, _gid: this.env.group}, lock);
+}
+};
+// callback from server upon group-delete command
+this.remove_group_item = function(prop)
+{
+var key = 'G'+prop.source+prop.id;
+if (this.treelist.remove(key)) {
+this.triggerEvent('group_delete', { source:prop.source, id:prop.id });
+delete this.env.contactfolders[key];
+delete this.env.contactgroups[key];
+}
+if (prop.source == this.env.source && prop.id == this.env.group)
+this.list_contacts(prop.source, 0);
+};
+//remove selected contacts from current active group
+this.group_remove_selected = function()
+{
+this.http_post('group-delmembers', {_cid: this.contact_list.selection,
+_source: this.env.source, _gid: this.env.group});
+};
+//callback after deleting contact(s) from current group
+this.remove_group_contacts = function(props)
+{
+if (this.env.group !== undefined && (this.env.group === props.gid)) {
+var n, selection = this.contact_list.get_selection();
+for (n=0; n<selection.length; n++) {
+id = selection[n];
+this.contact_list.remove_row(id, (n == selection.length-1));
+}
+}
+};
+// callback for creating a new contact group
+this.insert_contact_group = function(prop)
+{
+prop.type = 'group';
+var key = 'G'+prop.source+prop.id,
+link = $('<a>').attr('href', '#')
+.attr('rel', prop.source+':'+prop.id)
+.click(function() { return ref.command('listgroup', prop, this); })
+.html(prop.name);
+this.env.contactfolders[key] = this.env.contactgroups[key] = prop;
+this.treelist.insert({ id:key, html:link, classes:['contactgroup'] }, prop.source, 'contactgroup');
+this.triggerEvent('group_insert', { id:prop.id, source:prop.source, name:prop.name, li:this.treelist.get_item(key) });
+};
+// callback for renaming a contact group
+this.update_contact_group = function(prop)
+{
+var key = 'G'+prop.source+prop.id,
+newnode = {};
+// group ID has changed, replace link node and identifiers
+if (prop.newid) {
+var newkey = 'G'+prop.source+prop.newid,
+newprop = $.extend({}, prop);
+this.env.contactfolders[newkey] = this.env.contactfolders[key];
+this.env.contactfolders[newkey].id = prop.newid;
+this.env.group = prop.newid;
+delete this.env.contactfolders[key];
+delete this.env.contactgroups[key];
+newprop.id = prop.newid;
+newprop.type = 'group';
+newnode.id = newkey;
+newnode.html = $('<a>').attr('href', '#')
+.attr('rel', prop.source+':'+prop.newid)
+.click(function() { return ref.command('listgroup', newprop, this); })
+.html(prop.name);
+}
+// update displayed group name
+else {
+$(this.treelist.get_item(key)).children().first().html(prop.name);
+this.env.contactfolders[key].name = this.env.contactgroups[key].name = prop.name;
+if (prop.source == this.env.source && prop.id == this.env.group)
+this.set_group_prop(prop);
+}
+// update list node and re-sort it
+this.treelist.update(key, newnode, true);
+this.triggerEvent('group_update', { id:prop.id, source:prop.source, name:prop.name, li:this.treelist.get_item(key), newid:prop.newid });
+};
+this.update_group_commands = function()
+{
+var source = this.env.source != '' ? this.env.address_sources[this.env.source] : null,
+supported = source && source.groups && !source.readonly;
+this.enable_command('group-create', supported);
+this.enable_command('group-rename', 'group-delete', supported && this.env.group);
+};
+this.init_edit_field = function(col, elem)
+{
+var label = this.env.coltypes[col].label;
+if (!elem)
+elem = $('.ff_' + col);
+if (label)
+elem.placeholder(label);
+};
+this.insert_edit_field = function(col, section, menu)
+{
+// just make pre-defined input field visible
+var elem = $('#ff_'+col);
+if (elem.length) {
+elem.show().focus();
+$(menu).children('option[value="'+col+'"]').prop('disabled', true);
+}
+else {
+var lastelem = $('.ff_'+col),
+appendcontainer = $('#contactsection'+section+' .contactcontroller'+col);
+if (!appendcontainer.length) {
+var sect = $('#contactsection'+section),
+lastgroup = $('.contactfieldgroup', sect).last();
+appendcontainer = $('<fieldset>').addClass('contactfieldgroup contactcontroller'+col);
+if (lastgroup.length)
+appendcontainer.insertAfter(lastgroup);
+else
+sect.prepend(appendcontainer);
+}
+if (appendcontainer.length && appendcontainer.get(0).nodeName == 'FIELDSET') {
+var input, colprop = this.env.coltypes[col],
+input_id = 'ff_' + col + (colprop.count || 0),
+row = $('<div>').addClass('row'),
+cell = $('<div>').addClass('contactfieldcontent data'),
+label = $('<div>').addClass('contactfieldlabel label');
+if (colprop.subtypes_select)
+label.html(colprop.subtypes_select);
+else
+label.html('<label for="' + input_id + '">' + colprop.label + '</label>');
+var name_suffix = colprop.limit != 1 ? '[]' : '';
+if (colprop.type == 'text' || colprop.type == 'date') {
+input = $('<input>')
+.addClass('ff_'+col)
+.attr({type: 'text', name: '_'+col+name_suffix, size: colprop.size, id: input_id})
+.appendTo(cell);
+this.init_edit_field(col, input);
+if (colprop.type == 'date' && $.datepicker)
+input.datepicker();
+}
+else if (colprop.type == 'textarea') {
+input = $('<textarea>')
+.addClass('ff_'+col)
+.attr({ name: '_'+col+name_suffix, cols:colprop.size, rows:colprop.rows, id: input_id })
+.appendTo(cell);
+this.init_edit_field(col, input);
+}
+else if (colprop.type == 'composite') {
+var i, childcol, cp, first, templ, cols = [], suffices = [];
+// read template for composite field order
+if ((templ = this.env[col+'_template'])) {
+for (i=0; i < templ.length; i++) {
+cols.push(templ[i][1]);
+suffices.push(templ[i][2]);
+}
+}
+else {  // list fields according to appearance in colprop
+for (childcol in colprop.childs)
+cols.push(childcol);
+}
+for (i=0; i < cols.length; i++) {
+childcol = cols[i];
+cp = colprop.childs[childcol];
+input = $('<input>')
+.addClass('ff_'+childcol)
+.attr({ type: 'text', name: '_'+childcol+name_suffix, size: cp.size })
+.appendTo(cell);
+cell.append(suffices[i] || " ");
+this.init_edit_field(childcol, input);
+if (!first) first = input;
+}
+input = first;  // set focus to the first of this composite fields
+}
+else if (colprop.type == 'select') {
+input = $('<select>')
+.addClass('ff_'+col)
+.attr({ 'name': '_'+col+name_suffix, id: input_id })
+.appendTo(cell);
+var options = input.attr('options');
+options[options.length] = new Option('---', '');
+if (colprop.options)
+$.each(colprop.options, function(i, val){ options[options.length] = new Option(val, i); });
+}
+if (input) {
+var delbutton = $('<a href="#del"></a>')
+.addClass('contactfieldbutton deletebutton')
+.attr({title: this.get_label('delete'), rel: col})
+.html(this.env.delbutton)
+.click(function(){ ref.delete_edit_field(this); return false })
+.appendTo(cell);
+row.append(label).append(cell).appendTo(appendcontainer.show());
+input.first().focus();
+// disable option if limit reached
+if (!colprop.count) colprop.count = 0;
+if (++colprop.count == colprop.limit && colprop.limit)
+$(menu).children('option[value="'+col+'"]').prop('disabled', true);
+}
+}
+}
+};
+this.delete_edit_field = function(elem)
+{
+var col = $(elem).attr('rel'),
+colprop = this.env.coltypes[col],
+fieldset = $(elem).parents('fieldset.contactfieldgroup'),
+addmenu = fieldset.parent().find('select.addfieldmenu');
+// just clear input but don't hide the last field
+if (--colprop.count <= 0 && colprop.visible)
+$(elem).parent().children('input').val('').blur();
+else {
+$(elem).parents('div.row').remove();
+// hide entire fieldset if no more rows
+if (!fieldset.children('div.row').length)
+fieldset.hide();
+}
+// enable option in add-field selector or insert it if necessary
+if (addmenu.length) {
+var option = addmenu.children('option[value="'+col+'"]');
+if (option.length)
+option.prop('disabled', false);
+else
+option = $('<option>').attr('value', col).html(colprop.label).appendTo(addmenu);
+addmenu.show();
+}
+};
+this.upload_contact_photo = function(form)
+{
+if (form && form.elements._photo.value) {
+this.async_upload_form(form, 'upload-photo', function(e) {
+ref.set_busy(false, null, ref.file_upload_id);
+});
+// display upload indicator
+this.file_upload_id = this.set_busy(true, 'uploading');
+}
+};
+this.replace_contact_photo = function(id)
+{
+var img_src = id == '-del-' ? this.env.photo_placeholder :
+this.env.comm_path + '&_action=photo&_source=' + this.env.source + '&_cid=' + (this.env.cid || 0) + '&_photo=' + id;
+this.set_photo_actions(id);
+$(this.gui_objects.contactphoto).children('img').attr('src', img_src);
+};
+this.photo_upload_end = function()
+{
+this.set_busy(false, null, this.file_upload_id);
+delete this.file_upload_id;
+};
+this.set_photo_actions = function(id)
+{
+var n, buttons = this.buttons['upload-photo'];
+for (n=0; buttons && n < buttons.length; n++)
+$('a#'+buttons[n].id).html(this.get_label(id == '-del-' ? 'addphoto' : 'replacephoto'));
+$('#ff_photo').val(id);
+this.enable_command('upload-photo', this.env.coltypes.photo ? true : false);
+this.enable_command('delete-photo', this.env.coltypes.photo && id != '-del-');
+};
+// load advanced search page
+this.advanced_search = function()
+{
+var win, url = {_form: 1, _action: 'search'}, target = window;
+if (win = this.get_frame_window(this.env.contentframe)) {
+url._framed = 1;
+target = win;
+this.contact_list.clear_selection();
+}
+this.location_href(url, target, true);
+return true;
+};
+// unselect directory/group
+this.unselect_directory = function()
+{
+this.select_folder('');
+this.enable_command('search-delete', false);
+};
+// callback for creating a new saved search record
+this.insert_saved_search = function(name, id)
+{
+var key = 'S'+id,
+link = $('<a>').attr('href', '#')
+.attr('rel', id)
+.click(function() { return ref.command('listsearch', id, this); })
+.html(name),
+prop = { name:name, id:id };
+this.savedsearchlist.insert({ id:key, html:link, classes:['contactsearch'] }, null, 'contactsearch');
+this.select_folder(key,'',true);
+this.enable_command('search-delete', true);
+this.env.search_id = id;
+this.triggerEvent('abook_search_insert', prop);
+};
+// creates a dialog for saved search
+this.search_create = function()
+{
+var input = $('<input>').attr('type', 'text'),
+content = $('<label>').text(this.get_label('namex')).append(input);
+this.simple_dialog(content, 'searchsave',
+function() {
+var name;
+if (name = input.val()) {
+ref.http_post('search-create', {_search: ref.env.search_request, _name: name},
+ref.set_busy(true, 'loading'));
+return true;
+}
+}
+);
+};
+this.search_delete = function()
+{
+if (this.env.search_request) {
+var lock = this.set_busy(true, 'savedsearchdeleting');
+this.http_post('search-delete', {_sid: this.env.search_id}, lock);
+}
+};
+// callback from server upon search-delete command
+this.remove_search_item = function(id)
+{
+var li, key = 'S'+id;
+if (this.savedsearchlist.remove(key)) {
+this.triggerEvent('search_delete', { id:id, li:li });
+}
+this.env.search_id = null;
+this.env.search_request = null;
+this.list_contacts_clear();
+this.reset_qsearch();
+this.enable_command('search-delete', 'search-create', false);
+};
+this.listsearch = function(id)
+{
+var lock = this.set_busy(true, 'searching');
+if (this.contact_list) {
+this.list_contacts_clear();
+}
+this.reset_qsearch();
+if (this.savedsearchlist) {
+this.treelist.select('');
+this.savedsearchlist.select('S'+id);
+}
+else
+this.select_folder('S'+id, '', true);
+// reset vars
+this.env.current_page = 1;
+this.http_request('search', {_sid: id}, lock);
+};
+// display a dialog with QR code image
+this.qrcode = function()
+{
+var title = this.get_label('qrcode'),
+buttons = [{
+text: this.get_label('close'),
+'class': 'mainaction',
+click: function() {
+(ref.is_framed() ? parent.$ : $)(this).dialog('destroy');
+}
+}],
+img = new Image(300, 300);
+img.src = this.url('addressbook/qrcode', {_source: this.env.source, _cid: this.env.cid});
+return this.show_popup_dialog(img, title, buttons, {width: 310, height: 410});
+};
+/*********************************************************/
+/*********        user settings methods          *********/
+/*********************************************************/
+// preferences section select and load options frame
+this.section_select = function(list)
+{
+var win, id = list.get_single_selection(), target = window,
+url = {_action: 'edit-prefs', _section: id};
+if (id) {
+if (win = this.get_frame_window(this.env.contentframe)) {
+url._framed = 1;
+target = win;
+}
+this.location_href(url, target, true);
+}
+return true;
+};
+this.identity_select = function(list)
+{
+var id;
+if (id = list.get_single_selection()) {
+this.enable_command('delete', list.rowcount > 1 && this.env.identities_level < 2);
+this.load_identity(id, 'edit-identity');
+}
+};
+// load identity record
+this.load_identity = function(id, action)
+{
+if (action == 'edit-identity' && (!id || id == this.env.iid))
+return false;
+var win, target = window,
+url = {_action: action, _iid: id};
+if (win = this.get_frame_window(this.env.contentframe)) {
+url._framed = 1;
+target = win;
+}
+if (id || action == 'add-identity') {
+this.location_href(url, target, true);
+}
+return true;
+};
+this.delete_identity = function(id)
+{
+// exit if no identity is specified or if selection is empty
+var selection = this.identity_list.get_selection();
+if (!(selection.length || this.env.iid))
+return;
+if (!id)
+id = this.env.iid ? this.env.iid : selection[0];
+// submit request with appended token
+if (id && confirm(this.get_label('deleteidentityconfirm')))
+this.http_post('settings/delete-identity', { _iid: id }, true);
+};
+this.update_identity_row = function(id, name, add)
+{
+var list = this.identity_list,
+rid = this.html_identifier(id);
+if (add) {
+list.insert_row({ id:'rcmrow'+rid, cols:[ { className:'mail', innerHTML:name } ] });
+list.select(rid);
+}
+else {
+list.update_row(rid, [ name ]);
+}
+};
+this.update_response_row = function(response, oldkey)
+{
+var list = this.responses_list;
+if (list && oldkey) {
+list.update_row(oldkey, [ response.name ], response.key, true);
+}
+else if (list) {
+list.insert_row({ id:'rcmrow'+response.key, cols:[ { className:'name', innerHTML:response.name } ] });
+list.select(response.key);
+}
+};
+this.remove_response = function(key)
+{
+var frame;
+if (this.env.textresponses) {
+delete this.env.textresponses[key];
+}
+if (this.responses_list) {
+this.responses_list.remove_row(key);
+if (frame = this.get_frame_window(this.env.contentframe)) {
+frame.location.href = this.env.blankpage;
+}
+}
+this.enable_command('delete', false);
+};
+this.remove_identity = function(id)
+{
+var frame, list = this.identity_list,
+rid = this.html_identifier(id);
+if (list && id) {
+list.remove_row(rid);
+if (frame = this.get_frame_window(this.env.contentframe)) {
+frame.location.href = this.env.blankpage;
+}
+}
+this.enable_command('delete', false);
+};
+/*********************************************************/
+/*********        folder manager methods         *********/
+/*********************************************************/
+this.init_subscription_list = function()
+{
+var delim = RegExp.escape(this.env.delimiter);
+this.last_sub_rx = RegExp('['+delim+']?[^'+delim+']+$');
+this.subscription_list = new rcube_treelist_widget(this.gui_objects.subscriptionlist, {
+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); })
+.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,input,div.treetoggle'})
+.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) {
+if (!$(node).is('.mailbox'))
+return false;
+var source_folder = ref.folder_id2name($(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) {
+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 != '*' && (folder = this.env.subscriptionrows[id])) {
+this.env.mailbox = id;
+this.show_folder(id);
+this.enable_command('delete-folder', !folder[2]);
+}
+else {
+this.env.mailbox = null;
+this.show_contentframe(false);
+this.enable_command('delete-folder', 'purge', false);
+}
+};
+this.subscription_move_folder = function(from, to)
+{
+if (from && to !== null && from != to && to != from.replace(this.last_sub_rx, '')) {
+var path = from.split(this.env.delimiter),
+basename = path.pop(),
+newname = to === '' || to === '*' ? basename : to + this.env.delimiter + basename;
+if (newname != from) {
+this.http_post('rename-folder', {_folder_oldname: from, _folder_newname: newname},
+this.set_busy(true, 'foldermoving'));
+}
+}
+};
+// tell server to create and subscribe a new mailbox
+this.create_folder = function()
+{
+this.show_folder('', this.env.mailbox);
+};
+// delete a specific mailbox with all its messages
+this.delete_folder = function(name)
+{
+if (!name)
+name = this.env.mailbox;
+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 (id, name, display_name, is_protected, subscribed, class_name, refrow, subfolders)
+{
+if (!this.gui_objects.subscriptionlist)
+return false;
+// reset searching
+if (this.subscription_list.is_search()) {
+this.subscription_select();
+this.subscription_list.reset_search();
+}
+// 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;
+}
+// set ID, reset css class
+row.attr({id: 'rcmli' + this.html_identifier_encode(id), 'class': class_name});
+if (!refrow || !refrow.length) {
+// remove old data, subfolders and toggle
+$('ul,div.treetoggle', row).remove();
+row.removeData('filtered');
+}
+// set folder name
+$('a:first', row).text(display_name);
+// update subscription checkbox
+$('input[name="_subscribed[]"]:first', row).val(id)
+.prop({checked: subscribed ? true : false, disabled: is_protected ? true : false});
+// add to folder/row-ID map
+this.env.subscriptionrows[id] = [name, display_name, false];
+// copy folders data to an array for sorting
+$.each(this.env.subscriptionrows, function(k, v) { v[3] = k; folders.push(v); });
+try {
+// use collator if supported (FF29, IE11, Opera15, Chrome24)
+collator = new Intl.Collator(this.env.locale.replace('_', '-'));
+}
+catch (e) {};
+// sort folders
+folders.sort(function(a, b) {
+var i, f1, f2,
+path1 = a[0].split(ref.env.delimiter),
+path2 = b[0].split(ref.env.delimiter),
+len = path1.length;
+for (i=0; i<len; i++) {
+f1 = path1[i];
+f2 = path2[i];
+if (f1 !== f2) {
+if (f2 === undefined)
+return 1;
+if (collator)
+return collator.compare(f1, f2);
+else
+return f1 < f2 ? -1 : 1;
+}
+else if (i == len-1) {
+return -1
+}
+}
+});
+for (n in folders) {
+p = folders[n][3];
+// protected folder
+if (folders[n][2]) {
+tmp_name = p + this.env.delimiter;
+// prefix namespace cannot have subfolders (#1488349)
+if (tmp_name == this.env.prefix_ns)
+continue;
+slist.push(p);
+tmp = tmp_name;
+}
+// protected folder's child
+else if (tmp && p.startsWith(tmp))
+slist.push(p);
+// other
+else {
+list.push(p);
+tmp = null;
+}
+}
+// check if subfolder of a protected folder
+for (n=0; n<slist.length; 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] == id)
+rowid = list[n-1];
+}
+// add row to the table
+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.reset(true);
+this.subscription_select();
+// expand parent
+if (parent) {
+this.subscription_list.expand(this.folder_id2name(parent.id));
+}
+row = row.show().get(0);
+if (row.scrollIntoView)
+row.scrollIntoView();
+return row;
+};
+// replace an existing table row with a new folder line (with subfolders)
+this.replace_folder_row = function(oldid, id, name, display_name, is_protected, class_name)
+{
+if (!this.gui_objects.subscriptionlist) {
+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;
+}
+// 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 = $('input[name="_subscribed[]"]:first', row).prop('checked');
+// no renaming, only update class_name
+if (oldid == id) {
+$(row).attr('class', class_name || '');
+return;
+}
+// update subfolders
+$('li', row).each(function() {
+var fname = ref.folder_id2name(this.id),
+folder = ref.env.subscriptionrows[fname],
+newid = id + fname.slice(prefix_len_id);
+this.id = 'rcmli' + ref.html_identifier_encode(newid);
+$('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) {
+$('ul,div.treetoggle', parent.parent()).remove();
+}
+// move the existing table row
+this.add_folder_row(id, name, display_name, is_protected, subscribed, class_name, row, subfolders);
+};
+// remove the table row of a specific mailbox from the table
+this.remove_folder_row = function(folder)
+{
+// reset searching
+if (this.subscription_list.is_search()) {
+this.subscription_select();
+this.subscription_list.reset_search();
+}
+var list = [], row = this.subscription_list.get_item(folder, true);
+// get subfolders if any
+$('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);
+$.each(list, function(i, v) { delete ref.env.subscriptionrows[v]; });
+};
+this.subscribe = function(folder)
+{
+if (folder) {
+var lock = this.display_message(this.get_label('foldersubscribing'), 'loading');
+this.http_post('subscribe', {_mbox: folder}, lock);
+}
+};
+this.unsubscribe = function(folder)
+{
+if (folder) {
+var lock = this.display_message(this.get_label('folderunsubscribing'), 'loading');
+this.http_post('unsubscribe', {_mbox: folder}, lock);
+}
+};
+// when user select a folder in manager
+this.show_folder = function(folder, path, force)
+{
+var win, target = window,
+url = '&_action=edit-folder&_mbox='+urlencode(folder);
+if (path)
+url += '&_path='+urlencode(path);
+if (win = this.get_frame_window(this.env.contentframe)) {
+target = win;
+url += '&_framed=1';
+}
+if (String(target.location.href).indexOf(url) >= 0 && !force)
+this.show_contentframe(true);
+else
+this.location_href(this.env.comm_path+url, target, true);
+};
+// disables subscription checkbox (for protected folder)
+this.disable_subscription = function(folder)
+{
+var row = this.subscription_list.get_item(folder, true);
+if (row)
+$('input[name="_subscribed[]"]:first', row).prop('disabled', true);
+};
+// resets state of subscription checkbox (e.g. on error)
+this.reset_subscription = function(folder, state)
+{
+var row = this.subscription_list.get_item(folder, true);
+if (row)
+$('input[name="_subscribed[]"]:first', row).prop('checked', state);
+};
+this.folder_size = function(folder)
+{
+var lock = this.set_busy(true, 'loading');
+this.http_post('folder-size', {_mbox: folder}, lock);
+};
+this.folder_size_update = function(size)
+{
+$('#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           *********/
+/*********************************************************/
+var init_button = function(cmd, prop)
+{
+var elm = document.getElementById(prop.id);
+if (!elm)
+return;
+var preload = false;
+if (prop.type == 'image') {
+elm = elm.parentNode;
+preload = true;
+}
+elm._command = cmd;
+elm._id = prop.id;
+if (prop.sel) {
+elm.onmousedown = function(e) { return ref.button_sel(this._command, this._id); };
+elm.onmouseup = function(e) { return ref.button_out(this._command, this._id); };
+if (preload)
+new Image().src = prop.sel;
+}
+if (prop.over) {
+elm.onmouseover = function(e) { return ref.button_over(this._command, this._id); };
+elm.onmouseout = function(e) { return ref.button_out(this._command, this._id); };
+if (preload)
+new Image().src = prop.over;
+}
+};
+// set event handlers on registered buttons
+this.init_buttons = function()
+{
+for (var cmd in this.buttons) {
+if (typeof cmd !== 'string')
+continue;
+for (var i=0; i<this.buttons[cmd].length; i++) {
+init_button(cmd, this.buttons[cmd][i]);
+}
+}
+};
+// set button to a specific state
+this.set_button = function(command, state)
+{
+var n, button, obj, $obj, a_buttons = this.buttons[command],
+len = a_buttons ? a_buttons.length : 0;
+for (n=0; n<len; n++) {
+button = a_buttons[n];
+obj = document.getElementById(button.id);
+if (!obj || button.status === state)
+continue;
+// get default/passive setting of the button
+if (button.type == 'image' && !button.status) {
+button.pas = obj._original_src ? obj._original_src : obj.src;
+// respect PNG fix on IE browsers
+if (obj.runtimeStyle && obj.runtimeStyle.filter && obj.runtimeStyle.filter.match(/src=['"]([^'"]+)['"]/))
+button.pas = RegExp.$1;
+}
+else if (!button.status)
+button.pas = String(obj.className);
+button.status = state;
+// set image according to button state
+if (button.type == 'image' && button[state]) {
+obj.src = button[state];
+}
+// set class name according to button state
+else if (button[state] !== undefined) {
+obj.className = button[state];
+}
+// disable/enable input buttons
+if (button.type == 'input') {
+obj.disabled = state == 'pas';
+}
+else if (button.type == 'uibutton') {
+button.status = state;
+$(obj).button('option', 'disabled', state == 'pas');
+}
+else {
+$obj = $(obj);
+$obj
+.attr('tabindex', state == 'pas' || state == 'sel' ? '-1' : ($obj.attr('data-tabindex') || '0'))
+.attr('aria-disabled', state == 'pas' || state == 'sel' ? 'true' : 'false');
+}
+}
+};
+// display a specific alttext
+this.set_alttext = function(command, label)
+{
+var n, button, obj, link, a_buttons = this.buttons[command],
+len = a_buttons ? a_buttons.length : 0;
+for (n=0; n<len; n++) {
+button = a_buttons[n];
+obj = document.getElementById(button.id);
+if (button.type == 'image' && obj) {
+obj.setAttribute('alt', this.get_label(label));
+if ((link = obj.parentNode) && link.tagName.toLowerCase() == 'a')
+link.setAttribute('title', this.get_label(label));
+}
+else if (obj)
+obj.setAttribute('title', this.get_label(label));
+}
+};
+// mouse over button
+this.button_over = function(command, id)
+{
+this.button_event(command, id, 'over');
+};
+// mouse down on button
+this.button_sel = function(command, id)
+{
+this.button_event(command, id, 'sel');
+};
+// mouse out of button
+this.button_out = function(command, id)
+{
+this.button_event(command, id, 'act');
+};
+// event of button
+this.button_event = function(command, id, event)
+{
+var n, button, obj, a_buttons = this.buttons[command],
+len = a_buttons ? a_buttons.length : 0;
+for (n=0; n<len; n++) {
+button = a_buttons[n];
+if (button.id == id && button.status == 'act') {
+if (button[event] && (obj = document.getElementById(button.id))) {
+obj[button.type == 'image' ? 'src' : 'className'] = button[event];
+}
+if (event == 'sel') {
+this.buttons_sel[id] = command;
+}
+}
+}
+};
+// write to the document/window title
+this.set_pagetitle = function(title)
+{
+if (title && document.title)
+document.title = title;
+};
+// display a system message, list of types in common.css (below #message definition)
+this.display_message = function(msg, type, timeout, key)
+{
+// pass command to parent window
+if (this.is_framed())
+return parent.rcmail.display_message(msg, type, timeout);
+if (!this.gui_objects.message) {
+// save message in order to display after page loaded
+if (type != 'loading')
+this.pending_message = [msg, type, timeout, key];
+return 1;
+}
+if (!type)
+type = 'notice';
+if (!key)
+key = this.html_identifier(msg);
+var date = new Date(),
+id = type + date.getTime();
+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';
+timeout = this.env.request_timeout * 1000;
+if (!msg)
+msg = this.get_label('loading');
+}
+// The same message is already displayed
+if (this.messages[key]) {
+// replace label
+if (this.messages[key].obj)
+this.messages[key].obj.html(msg);
+// store label in stack
+if (type == 'loading') {
+this.messages[key].labels.push({'id': id, 'msg': msg});
+}
+// add element and set timeout
+this.messages[key].elements.push(id);
+setTimeout(function() { ref.hide_message(id, type == 'loading'); }, timeout);
+return id;
+}
+// create DOM object and display it
+var obj = $('<div>').addClass(type).html(msg).data('key', key),
+cont = $(this.gui_objects.message).append(obj).show();
+this.messages[key] = {'obj': obj, 'elements': [id]};
+if (type == 'loading') {
+this.messages[key].labels = [{'id': id, 'msg': msg}];
+}
+else if (type != 'uploading') {
+obj.click(function() { return ref.hide_message(obj); })
+.attr('role', 'alert');
+}
+this.triggerEvent('message', { message:msg, type:type, timeout:timeout, object:obj });
+if (timeout > 0)
+setTimeout(function() { ref.hide_message(id, type != 'loading'); }, timeout);
+return id;
+};
+// make a message to disapear
+this.hide_message = function(obj, fade)
+{
+// pass command to parent window
+if (this.is_framed())
+return parent.rcmail.hide_message(obj, fade);
+if (!this.gui_objects.message)
+return;
+var k, n, i, o, m = this.messages;
+// Hide message by object, don't use for 'loading'!
+if (typeof obj === 'object') {
+o = $(obj);
+k = o.data('key');
+this.hide_message_object(o, fade);
+if (m[k])
+delete m[k];
+}
+// Hide message by id
+else {
+for (k in m) {
+for (n in m[k].elements) {
+if (m[k] && m[k].elements[n] == obj) {
+m[k].elements.splice(n, 1);
+// hide DOM element if last instance is removed
+if (!m[k].elements.length) {
+this.hide_message_object(m[k].obj, fade);
+delete m[k];
+}
+// set pending action label for 'loading' message
+else if (k == 'loading') {
+for (i in m[k].labels) {
+if (m[k].labels[i].id == obj) {
+delete m[k].labels[i];
+}
+else {
+o = m[k].labels[i].msg;
+m[k].obj.html(o);
+}
+}
+}
+}
+}
+}
+}
+};
+// hide message object and remove from the DOM
+this.hide_message_object = function(o, fade)
+{
+if (fade)
+o.fadeOut(600, function() {$(this).remove(); });
+else
+o.hide().remove();
+};
+// remove all messages immediately
+this.clear_messages = function()
+{
+// pass command to parent window
+if (this.is_framed())
+return parent.rcmail.clear_messages();
+var k, n, m = this.messages;
+for (k in m)
+for (n in m[k].elements)
+if (m[k].obj)
+this.hide_message_object(m[k].obj);
+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(content, title, buttons, options)
+{
+// forward call to parent window
+if (this.is_framed()) {
+return parent.rcmail.show_popup_dialog(content, title, buttons, options);
+}
+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 || {});
+popup.dialog(options);
+// resize and center popup
+var win = $(window), w = win.width(), h = win.height(),
+width = popup.width(), height = popup.height();
+popup.dialog('option', {
+height: Math.min(h - 40, height + 75 + (buttons ? 50 : 0)),
+width: Math.min(w - 20, width + 36)
+});
+// assign special classes to dialog buttons
+$.each(options.button_classes || [], function(i, v) {
+if (v) $($('.ui-dialog-buttonpane button.ui-button', popup.parent()).get(i)).addClass(v);
+});
+return popup;
+};
+// show_popup_dialog() wrapper for simple dialogs with Save and Cancel buttons
+this.simple_dialog = function(content, title, button_func, options)
+{
+var title = this.get_label(title),
+buttons = [{
+text: this.get_label((options || {}).button || 'save'),
+'class': 'mainaction',
+click: function() {
+if (button_func())
+$(this).dialog('close');
+}
+},
+{
+text: ref.get_label('cancel'),
+click: function() {
+$(this).dialog('close');
+}
+}];
+return this.show_popup_dialog(content, title, buttons, options);
+};
+// enable/disable buttons for page shifting
+this.set_page_buttons = function()
+{
+this.enable_command('nextpage', 'lastpage', this.env.pagecount > this.env.current_page);
+this.enable_command('previouspage', 'firstpage', this.env.current_page > 1);
+this.update_pagejumper();
+};
+// mark a mailbox as selected and set environment variable
+this.select_folder = function(name, prefix, encode)
+{
+if (this.savedsearchlist) {
+this.savedsearchlist.select('');
+}
+if (this.treelist) {
+this.treelist.select(name);
+}
+else if (this.gui_objects.folderlist) {
+$('li.selected', this.gui_objects.folderlist).removeClass('selected');
+$(this.get_folder_li(name, prefix, encode)).addClass('selected');
+// trigger event hook
+this.triggerEvent('selectfolder', { folder:name, prefix:prefix });
+}
+};
+// adds a class to selected folder
+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
+this.get_folder_li = function(name, prefix, encode)
+{
+if (!prefix)
+prefix = 'rcmli';
+if (this.gui_objects.folderlist) {
+name = this.html_identifier(name, encode);
+return document.getElementById(prefix+name);
+}
+};
+// for reordering column array (Konqueror workaround)
+// and for setting some message list global variables
+this.set_message_coltypes = function(listcols, repl, smart_col)
+{
+var list = this.message_list,
+thead = list ? list.thead : null,
+repl, cell, col, n, len, tr;
+this.env.listcols = listcols;
+if (!this.env.coltypes)
+this.env.coltypes = {};
+// replace old column headers
+if (thead) {
+if (repl) {
+thead.innerHTML = '';
+tr = document.createElement('tr');
+for (c=0, len=repl.length; c < len; c++) {
+cell = document.createElement('th');
+cell.innerHTML = repl[c].html || '';
+if (repl[c].id) cell.id = repl[c].id;
+if (repl[c].className) cell.className = repl[c].className;
+tr.appendChild(cell);
+}
+thead.appendChild(tr);
+}
+for (n=0, len=this.env.listcols.length; n<len; n++) {
+col = this.env.listcols[n];
+if ((cell = thead.rows[0].cells[n]) && (col == 'from' || col == 'to' || col == 'fromto')) {
+$(cell).attr('rel', col).find('span,a').text(this.get_label(col == 'fromto' ? smart_col : col));
+}
+}
+}
+this.env.subject_col = null;
+this.env.flagged_col = null;
+this.env.status_col = null;
+if (this.env.coltypes.folder)
+this.env.coltypes.folder.hidden = !(this.env.search_request || this.env.search_id) || this.env.search_scope == 'base';
+if ((n = $.inArray('subject', this.env.listcols)) >= 0) {
+this.env.subject_col = n;
+if (list)
+list.subject_col = n;
+}
+if ((n = $.inArray('flag', this.env.listcols)) >= 0)
+this.env.flagged_col = n;
+if ((n = $.inArray('status', this.env.listcols)) >= 0)
+this.env.status_col = n;
+if (list) {
+list.hide_column('folder', (this.env.coltypes.folder && this.env.coltypes.folder.hidden) || $.inArray('folder', this.env.listcols) < 0);
+list.init_header();
+}
+};
+// replace content of row count display
+this.set_rowcount = function(text, mbox)
+{
+// #1487752
+if (mbox && mbox != this.env.mailbox)
+return false;
+$(this.gui_objects.countdisplay).html(text);
+// update page navigation buttons
+this.set_page_buttons();
+};
+// replace content of mailboxname display
+this.set_mailboxname = function(content)
+{
+if (this.gui_objects.mailboxname && content)
+this.gui_objects.mailboxname.innerHTML = content;
+};
+// replace content of quota display
+this.set_quota = function(content)
+{
+if (this.gui_objects.quotadisplay && content && content.type == 'text')
+$(this.gui_objects.quotadisplay).text((content.percent||0) + '%').attr('title', content.title);
+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
+this.set_unread_count = function(mbox, count, set_title, mark)
+{
+if (!this.gui_objects.mailboxlist)
+return false;
+this.env.unread_counts[mbox] = count;
+this.set_unread_count_display(mbox, set_title);
+if (mark)
+this.mark_folder(mbox, mark, '', true);
+else if (!count)
+this.unmark_folder(mbox, 'recent', '', true);
+this.mark_all_read_state();
+};
+// update the mailbox count display
+this.set_unread_count_display = function(mbox, set_title)
+{
+var reg, link, text_obj, item, mycount, childcount, div;
+if (item = this.get_folder_li(mbox, '', true)) {
+mycount = this.env.unread_counts[mbox] ? this.env.unread_counts[mbox] : 0;
+link = $(item).children('a').eq(0);
+text_obj = link.children('span.unreadcount');
+if (!text_obj.length && mycount)
+text_obj = $('<span>').addClass('unreadcount').appendTo(link);
+reg = /\s+\([0-9]+\)$/i;
+childcount = 0;
+if ((div = item.getElementsByTagName('div')[0]) &&
+div.className.match(/collapsed/)) {
+// add children's counters
+for (var k in this.env.unread_counts)
+if (k.startsWith(mbox + this.env.delimiter))
+childcount += this.env.unread_counts[k];
+}
+if (mycount && text_obj.length)
+text_obj.html(this.env.unreadwrap.replace(/%[sd]/, mycount));
+else if (text_obj.length)
+text_obj.remove();
+// set parent's display
+reg = new RegExp(RegExp.escape(this.env.delimiter) + '[^' + RegExp.escape(this.env.delimiter) + ']+$');
+if (mbox.match(reg))
+this.set_unread_count_display(mbox.replace(reg, ''), false);
+// set the right classes
+if ((mycount+childcount)>0)
+$(item).addClass('unread');
+else
+$(item).removeClass('unread');
+}
+// set unread count to window title
+reg = /^\([0-9]+\)\s+/i;
+if (set_title && document.title) {
+var new_title = '',
+doc_title = String(document.title);
+if (mycount && doc_title.match(reg))
+new_title = doc_title.replace(reg, '('+mycount+') ');
+else if (mycount)
+new_title = '('+mycount+') '+doc_title;
+else
+new_title = doc_title.replace(reg, '');
+this.set_pagetitle(new_title);
+}
+};
+// display fetched raw headers
+this.set_headers = function(content)
+{
+if (this.gui_objects.all_headers_row && this.gui_objects.all_headers_box && content)
+$(this.gui_objects.all_headers_box).html(content).show();
+};
+// display all-headers row and fetch raw message headers
+this.show_headers = function(props, elem)
+{
+if (!this.gui_objects.all_headers_row || !this.gui_objects.all_headers_box || !this.env.uid)
+return;
+$(elem).removeClass('show-headers').addClass('hide-headers');
+$(this.gui_objects.all_headers_row).show();
+elem.onclick = function() { ref.command('hide-headers', '', elem); };
+// fetch headers only once
+if (!this.gui_objects.all_headers_box.innerHTML) {
+this.http_post('headers', {_uid: this.env.uid, _mbox: this.env.mailbox},
+this.display_message(this.get_label('loading'), 'loading')
+);
+}
+};
+// hide all-headers row
+this.hide_headers = function(props, elem)
+{
+if (!this.gui_objects.all_headers_row || !this.gui_objects.all_headers_box)
+return;
+$(elem).removeClass('hide-headers').addClass('show-headers');
+$(this.gui_objects.all_headers_row).hide();
+elem.onclick = function() { ref.command('show-headers', '', elem); };
+};
+// create folder selector popup, position and display it
+this.folder_selector = function(event, callback)
+{
+var container = this.folder_selector_element;
+if (!container) {
+var rows = [],
+delim = this.env.delimiter,
+ul = $('<ul class="toolbarmenu">'),
+link = document.createElement('a');
+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 n = 0, s = 0,
+folder = ref.env.mailboxes[this],
+id = folder.id,
+a = $(link.cloneNode(false)),
+row = $('<li>');
+if (folder.virtual)
+a.addClass('virtual').attr('aria-disabled', 'true').attr('tabindex', '-1');
+else
+a.addClass('active').data('id', folder.id);
+if (folder['class'])
+a.addClass(folder['class']);
+// calculate/set indentation level
+while ((s = id.indexOf(delim, s)) >= 0) {
+n++; s++;
+}
+a.css('padding-left', n ? (n * 16) + 'px' : 0);
+// add folder name element
+a.append($('<span>').text(folder.name));
+row.append(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', $('li', container)[0].offsetHeight * 10 + 9);
+// register delegate event handler for folder item clicks
+container.on('click', 'a.active', function(e){
+container.data('callback')($(this).data('id'));
+return false;
+});
+this.folder_selector_element = container;
+}
+container.data('callback', callback);
+// position menu on the screen
+this.show_menu('folder-selector', true, event);
+};
+/***********************************************/
+/*********    popup menu functions     *********/
+/***********************************************/
+// Show/hide a specific popup menu
+this.show_menu = function(prop, show, event)
+{
+var name = typeof prop == 'object' ? prop.menu : prop,
+obj = $('#'+name),
+ref = event && event.target ? $(event.target) : $(obj.attr('rel') || '#'+name+'link'),
+keyboard = rcube_event.is_keyboard(event),
+align = obj.attr('data-align') || '',
+stack = false;
+// find "real" button element
+if (ref.get(0).tagName != 'A' && ref.closest('a').length)
+ref = ref.closest('a');
+if (typeof prop == 'string')
+prop = { menu:name };
+// let plugins or skins provide the menu element
+if (!obj.length) {
+obj = this.triggerEvent('menu-get', { name:name, props:prop, originalEvent:event });
+}
+if (!obj || !obj.length) {
+// just delegate the action to subscribers
+return this.triggerEvent(show === false ? 'menu-close' : 'menu-open', { name:name, props:prop, originalEvent:event });
+}
+// move element to top for proper absolute positioning
+obj.appendTo(document.body);
+if (typeof show == 'undefined')
+show = obj.is(':visible') ? false : true;
+if (show && ref.length) {
+var win = $(window),
+pos = ref.offset(),
+above = align.indexOf('bottom') >= 0;
+stack = ref.attr('role') == 'menuitem' || ref.closest('[role=menuitem]').length > 0;
+ref.offsetWidth = ref.outerWidth();
+ref.offsetHeight = ref.outerHeight();
+if (!above && pos.top + ref.offsetHeight + obj.height() > win.height()) {
+above = true;
+}
+if (align.indexOf('right') >= 0) {
+pos.left = pos.left + ref.outerWidth() - obj.width();
+}
+else if (stack) {
+pos.left = pos.left + ref.offsetWidth - 5;
+pos.top -= ref.offsetHeight;
+}
+if (pos.left + obj.width() > win.width()) {
+pos.left = win.width() - obj.width() - 12;
+}
+pos.top = Math.max(0, pos.top + (above ? -obj.height() : ref.offsetHeight));
+obj.css({ left:pos.left+'px', top:pos.top+'px' });
+}
+// add menu to stack
+if (show) {
+// truncate stack down to the one containing the ref link
+for (var i = this.menu_stack.length - 1; stack && i >= 0; i--) {
+if (!$(ref).parents('#'+this.menu_stack[i]).length && $(event.target).parent().attr('role') != 'menuitem')
+this.hide_menu(this.menu_stack[i], event);
+}
+if (stack && this.menu_stack.length) {
+obj.data('parent', $.last(this.menu_stack));
+obj.css('z-index', ($('#'+$.last(this.menu_stack)).css('z-index') || 0) + 1);
+}
+else if (!stack && this.menu_stack.length) {
+this.hide_menu(this.menu_stack[0], event);
+}
+obj.show().attr('aria-hidden', 'false').data('opener', ref.attr('aria-expanded', 'true').get(0));
+this.triggerEvent('menu-open', { name:name, obj:obj, props:prop, originalEvent:event });
+this.menu_stack.push(name);
+this.menu_keyboard_active = show && keyboard;
+if (this.menu_keyboard_active) {
+this.focused_menu = name;
+obj.find('a,input:not(:disabled)').not('[aria-disabled=true]').first().focus();
+}
+}
+else {  // close menu
+this.hide_menu(name, event);
+}
+return show;
+};
+// hide the given popup menu (and it's childs)
+this.hide_menu = function(name, event)
+{
+if (!this.menu_stack.length) {
+// delegate to subscribers
+this.triggerEvent('menu-close', { name:name, props:{ menu:name }, originalEvent:event });
+return;
+}
+var obj, keyboard = rcube_event.is_keyboard(event);
+for (var j=this.menu_stack.length-1; j >= 0; j--) {
+obj = $('#' + this.menu_stack[j]).hide().attr('aria-hidden', 'true').data('parent', false);
+this.triggerEvent('menu-close', { name:this.menu_stack[j], obj:obj, props:{ menu:this.menu_stack[j] }, originalEvent:event });
+if (this.menu_stack[j] == name) {
+j = -1;  // stop loop
+if (obj.data('opener')) {
+$(obj.data('opener')).attr('aria-expanded', 'false');
+if (keyboard)
+obj.data('opener').focus();
+}
+}
+this.menu_stack.pop();
+}
+// focus previous menu in stack
+if (this.menu_stack.length && keyboard) {
+this.menu_keyboard_active = true;
+this.focused_menu = $.last(this.menu_stack);
+if (!obj || !obj.data('opener'))
+$('#'+this.focused_menu).find('a,input:not(:disabled)').not('[aria-disabled=true]').first().focus();
+}
+else {
+this.focused_menu = null;
+this.menu_keyboard_active = false;
+}
+}
+// 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 = $(element).width(),
+pos = obj.offset(),
+top = pos.top,
+left = pos.left + width;
+if (menu_pos == 'bottom') {
+top += height;
+left -= width;
+}
+else
+left -= 5;
+if (top + elem_height > win_height) {
+top -= elem_height - height;
+if (top < 0)
+top = Math.max(0, (win_height - elem_height) / 2);
+}
+if (left + elem_width > win.width())
+left -= elem_width + width;
+element.css({left: left + 'px', top: top + 'px'});
+};
+// initialize HTML editor
+this.editor_init = function(config, id)
+{
+this.editor = new rcube_text_editor(config, id);
+};
+/********************************************************/
+/*********  html to text conversion functions   *********/
+/********************************************************/
+this.html2plain = function(html, func)
+{
+return this.format_converter(html, 'html', func);
+};
+this.plain2html = function(plain, func)
+{
+return this.format_converter(plain, 'plain', func);
+};
+this.format_converter = function(text, format, func)
+{
+// warn the user (if converted content is not empty)
+if (!text
+|| (format == 'html' && !(text.replace(/<[^>]+>|&nbsp;|\xC2\xA0|\s/g, '')).length)
+|| (format != 'html' && !(text.replace(/\xC2\xA0|\s/g, '')).length)
+) {
+// without setTimeout() here, textarea is filled with initial (onload) content
+if (func)
+setTimeout(function() { func(''); }, 50);
+return true;
+}
+var confirmed = this.env.editor_warned || confirm(this.get_label('editorwarning'));
+this.env.editor_warned = true;
+if (!confirmed)
+return false;
+var url = '?_task=utils&_action=' + (format == 'html' ? 'html2text' : 'text2html'),
+lock = this.set_busy(true, 'converting');
+$.ajax({ type: 'POST', url: url, data: text, contentType: 'application/octet-stream',
+error: function(o, status, err) { ref.http_error(o, status, err, lock); },
+success: function(data) {
+ref.set_busy(false, null, lock);
+if (func) func(data);
+}
+});
+return true;
+};
+/********************************************************/
+/*********        remote request methods        *********/
+/********************************************************/
+// compose a valid url with the given parameters
+this.url = function(action, query)
+{
+var querystring = typeof query === 'string' ? query : '';
+if (typeof action !== 'string')
+query = action;
+else if (!query || typeof query !== 'object')
+query = {};
+if (action)
+query._action = action;
+else if (this.env.action)
+query._action = this.env.action;
+var url = this.env.comm_path, k, param = {};
+// overwrite task name
+if (action && action.match(/([a-z0-9_-]+)\/([a-z0-9-_.]+)/)) {
+query._action = RegExp.$2;
+url = url.replace(/\_task=[a-z0-9_-]+/, '_task=' + RegExp.$1);
+}
+// remove undefined values
+for (k in query) {
+if (query[k] !== undefined && query[k] !== null)
+param[k] = query[k];
+}
+if (param = $.param(param))
+url += (url.indexOf('?') > -1 ? '&' : '?') + param;
+if (querystring)
+url += (url.indexOf('?') > -1 ? '&' : '?') + querystring;
+return url;
+};
+this.redirect = function(url, lock)
+{
+if (lock || lock === null)
+this.set_busy(true);
+if (this.is_framed()) {
+parent.rcmail.redirect(url, lock);
+}
+else {
+if (this.env.extwin) {
+if (typeof url == 'string')
+url += (url.indexOf('?') < 0 ? '?' : '&') + '_extwin=1';
+else
+url._extwin = 1;
+}
+this.location_href(url, window);
+}
+};
+this.goto_url = function(action, query, lock, secure)
+{
+var url = this.url(action, query)
+if (secure) url = this.secure_url(url);
+this.redirect(url, lock);
+};
+this.location_href = function(url, target, frame)
+{
+if (frame)
+this.lock_frame();
+if (typeof url == 'object')
+url = this.env.comm_path + '&' + $.param(url);
+// simulate real link click to force IE to send referer header
+if (bw.ie && target == window)
+$('<a>').attr('href', url).appendTo(document.body).get(0).click();
+else
+target.location.href = url;
+// reset keep-alive interval
+this.start_keepalive();
+};
+// update browser location to remember current view
+this.update_state = function(query)
+{
+if (window.history.replaceState)
+try {
+// This may throw security exception in Firefox (#5400)
+window.history.replaceState({}, document.title, rcmail.url('', query));
+}
+catch(e) { /* ignore */ };
+};
+// send a http request to the server
+this.http_request = function(action, data, lock, type)
+{
+if (type != 'POST')
+type = 'GET';
+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, 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);
+// reset keep-alive interval
+this.start_keepalive();
+// send request
+return $.ajax({
+type: type, 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); }
+});
+};
+// send a http GET request to the server
+this.http_get = this.http_request;
+// send a http POST request to the server
+this.http_post = function(action, data, lock)
+{
+return this.http_request(action, data, lock, 'POST');
+};
+// aborts ajax request
+this.abort_request = function(r)
+{
+if (r.request)
+r.request.abort();
+if (r.lock)
+this.set_busy(false, null, r.lock);
+};
+// handle HTTP response
+this.http_response = function(response)
+{
+if (!response)
+return;
+if (response.unlock)
+this.set_busy(false);
+this.triggerEvent('responsebefore', {response: response});
+this.triggerEvent('responsebefore'+response.action, {response: response});
+// set env vars
+if (response.env)
+this.set_env(response.env);
+var i;
+// we have labels to add
+if (typeof response.texts === 'object') {
+for (i in response.texts)
+if (typeof response.texts[i] === 'string')
+this.add_label(i, response.texts[i]);
+}
+// if we get javascript code from server -> execute it
+if (response.exec) {
+eval(response.exec);
+}
+// execute callback functions of plugins
+if (response.callbacks && response.callbacks.length) {
+for (i=0; i < response.callbacks.length; i++)
+this.triggerEvent(response.callbacks[i][0], response.callbacks[i][1]);
+}
+// process the response data according to the sent action
+switch (response.action) {
+case 'mark':
+// Mark the message as Seen also in the opener/parent
+if ((this.env.action == 'show' || this.env.action == 'preview') && this.env.last_flag == 'SEEN')
+this.set_unread_message(this.env.uid, this.env.mailbox);
+break;
+case 'delete':
+if (this.task == 'addressbook') {
+var sid, uid = this.contact_list.get_selection(), writable = false;
+if (uid && this.contact_list.rows[uid]) {
+// search results, get source ID from record ID
+if (this.env.source == '') {
+sid = String(uid).replace(/^[^-]+-/, '');
+writable = sid && this.env.address_sources[sid] && !this.env.address_sources[sid].readonly;
+}
+else {
+writable = !this.env.address_sources[this.env.source].readonly;
+}
+}
+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', 'print', false);
+}
+case 'move':
+if (this.env.action == 'show') {
+// re-enable commands on move/delete error
+this.enable_command(this.env.message_commands, true);
+if (!this.env.list_post)
+this.enable_command('reply-list', false);
+}
+else if (this.task == 'addressbook') {
+this.triggerEvent('listupdate', { folder:this.env.source, rowcount:this.contact_list.rowcount });
+}
+case 'purge':
+case 'expunge':
+if (this.task == 'mail') {
+if (!this.env.exists) {
+// clear preview pane content
+if (this.env.contentframe)
+this.show_contentframe(false);
+// disable commands useless when mailbox is empty
+this.enable_command(this.env.message_commands, 'purge', 'expunge',
+'select-all', 'select-none', 'expand-all', 'expand-unread', 'collapse-all', false);
+}
+if (this.message_list)
+this.triggerEvent('listupdate', { folder:this.env.mailbox, rowcount:this.message_list.rowcount });
+}
+break;
+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;
+case 'list':
+if (this.task == 'mail') {
+var is_multifolder = this.is_multifolder_listing(),
+list = this.message_list,
+uid = this.env.list_uid;
+this.enable_command('show', 'select-all', 'select-none', this.env.messagecount > 0);
+this.enable_command('expunge', this.env.exists && !is_multifolder);
+this.enable_command('purge', this.purge_mailbox_test() && !is_multifolder);
+this.enable_command('import-messages', !is_multifolder);
+this.enable_command('expand-all', 'expand-unread', 'collapse-all', this.env.threading && this.env.messagecount && !is_multifolder);
+if (list) {
+if (response.action == 'list' || response.action == 'search') {
+// highlight message row when we're back from message page
+if (uid) {
+if (!list.rows[uid])
+uid += '-' + this.env.mailbox;
+if (list.rows[uid]) {
+list.select(uid);
+}
+delete this.env.list_uid;
+}
+this.enable_command('set-listmode', this.env.threads && !is_multifolder);
+if (list.rowcount > 0 && !$(document.activeElement).is('input,textarea'))
+list.focus();
+// trigger 'select' so all dependent actions update its state
+// e.g. plugins use this event to activate buttons (#1490647)
+list.triggerEvent('select');
+}
+if (response.action != 'getunread')
+this.triggerEvent('listupdate', { folder:this.env.mailbox, rowcount:list.rowcount });
+}
+}
+else if (this.task == 'addressbook') {
+this.enable_command('export', (this.contact_list && this.contact_list.rowcount > 0));
+if (response.action == 'list' || response.action == 'search') {
+this.enable_command('search-create', this.env.source == '');
+this.enable_command('search-delete', this.env.search_id);
+this.update_group_commands();
+if (this.contact_list.rowcount > 0 && !$(document.activeElement).is('input,textarea'))
+this.contact_list.focus();
+this.triggerEvent('listupdate', { folder:this.env.source, rowcount:this.contact_list.rowcount });
+}
+}
+break;
+case 'list-contacts':
+case 'search-contacts':
+if (this.contact_list && this.contact_list.rowcount > 0)
+this.contact_list.focus();
+break;
+}
+if (response.unlock)
+this.hide_message(response.unlock);
+this.triggerEvent('responseafter', {response: response});
+this.triggerEvent('responseafter'+response.action, {response: response});
+// reset keep-alive interval
+this.start_keepalive();
+};
+// handle HTTP request errors
+this.http_error = function(request, status, err, lock, action)
+{
+var errmsg = request.statusText;
+this.set_busy(false, null, lock);
+request.abort();
+// don't display error message on page unload (#1488547)
+if (this.unload)
+return;
+if (request.status && errmsg)
+this.display_message(this.get_label('servererror') + ' (' + errmsg + ')', 'error');
+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('connerror'), 'error');
+// redirect to url specified in location header if not empty
+var location_url = request.getResponseHeader("Location");
+if (location_url && this.env.action != 'compose')  // don't redirect on compose screen, contents might get lost (#1488926)
+this.redirect(location_url);
+// 403 Forbidden response (CSRF prevention) - reload the page.
+// In case there's a new valid session it will be used, otherwise
+// login form will be presented (#1488960).
+if (request.status == 403) {
+(this.is_framed() ? parent : window).location.reload();
+return;
+}
+// re-send keep-alive requests after 30 seconds
+if (action == 'keep-alive')
+setTimeout(function(){ ref.keep_alive(); ref.start_keepalive(); }, 30000);
+};
+// handler for session errors detected on the server
+this.session_error = function(redirect_url)
+{
+this.env.server_error = 401;
+// save message in local storage and do not redirect
+if (this.env.action == 'compose') {
+this.save_compose_form_local();
+this.compose_skip_unsavedcheck = true;
+// stop keep-alive and refresh processes
+this.env.session_lifetime = 0;
+if (this._keepalive)
+clearInterval(this._keepalive);
+if (this._refresh)
+clearInterval(this._refresh);
+}
+else if (redirect_url) {
+setTimeout(function(){ ref.redirect(redirect_url, true); }, 2000);
+}
+};
+// callback when an iframe finished loading
+this.iframe_loaded = function(unlock)
+{
+this.set_busy(false, null, unlock);
+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 i, item, reqid = new Date().getTime(),
+threads = prop.threads || 1;
+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
+for (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 k, postdata, query;
+// replace %s in post data
+if (prop.postdata) {
+postdata = {};
+for (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 (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
+this.async_upload_form = function(form, action, onload)
+{
+// create hidden iframe
+var ts = new Date().getTime(),
+frame_name = 'rcmupload' + ts,
+frame = this.async_upload_form_frame(frame_name);
+// upload progress support
+if (this.env.upload_progress_name) {
+var fname = this.env.upload_progress_name,
+field = $('input[name='+fname+']', form);
+if (!field.length) {
+field = $('<input>').attr({type: 'hidden', name: fname});
+field.prependTo(form);
+}
+field.val(ts);
+}
+// handle upload errors by parsing iframe content in onload
+frame.on('load', {ts:ts}, onload);
+$(form).attr({
+target: frame_name,
+action: this.url(action, {_id: this.env.compose_id || '', _uploadid: ts, _from: this.env.action}),
+method: 'POST'})
+.attr(form.encoding ? 'encoding' : 'enctype', 'multipart/form-data')
+.submit();
+return frame_name;
+};
+// create iframe element for files upload
+this.async_upload_form_frame = function(name)
+{
+return $('<iframe>').attr({name: name, style: 'border: none; width: 0; height: 0; visibility: hidden'})
+.appendTo(document.body);
+};
+// html5 file-drop API
+this.document_drag_hover = function(e, over)
+{
+// don't e.preventDefault() here to not block text dragging on the page (#1490619)
+$(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('active');
+};
+this.file_drag_hover = function(e, over)
+{
+e.preventDefault();
+e.stopPropagation();
+$(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('hover');
+};
+// handler when files are dropped to a designated area.
+// compose a multipart form data and submit it to the server
+this.file_dropped = function(e)
+{
+// abort event and reset UI
+this.file_drag_hover(e, false);
+// prepare multipart form data composition
+var uri, size = 0, numfiles = 0,
+files = e.target.files || e.dataTransfer.files,
+formdata = window.FormData ? new FormData() : null,
+fieldname = (this.env.filedrop.fieldname || '_file') + (this.env.filedrop.single ? '' : '[]'),
+boundary = '------multipartformboundary' + (new Date).getTime(),
+dashdash = '--', crlf = '\r\n',
+multipart = dashdash + boundary + crlf,
+args = {_id: this.env.compose_id || this.env.cid || '', _remote: 1, _from: this.env.action};
+if (!files || !files.length) {
+// Roundcube attachment, pass its uri to the backend and attach
+if (uri = e.dataTransfer.getData('roundcube-uri')) {
+var ts = new Date().getTime(),
+// jQuery way to escape filename (#1490530)
+content = $('<span>').text(e.dataTransfer.getData('roundcube-name') || this.get_label('attaching')).html();
+args._uri = uri;
+args._uploadid = ts;
+// add to attachments list
+if (!this.add2attachment_list(ts, {name: '', html: content, classname: 'uploading', complete: false}))
+this.file_upload_id = this.set_busy(true, 'attaching');
+this.http_post(this.env.filedrop.action || 'upload', args);
+}
+return;
+}
+// inline function to submit the files to the server
+var submit_data = function() {
+if (ref.env.max_filesize && ref.env.filesizeerror && size > ref.env.max_filesize) {
+ref.display_message(ref.env.filesizeerror, 'error');
+return;
+}
+if (ref.env.max_filecount && ref.env.filecounterror && numfiles > ref.env.max_filecount) {
+ref.display_message(ref.env.filecounterror, 'error');
+return;
+}
+var multiple = files.length > 1,
+ts = new Date().getTime(),
+// jQuery way to escape filename (#1490530)
+content = $('<span>').text(multiple ? ref.get_label('uploadingmany') : files[0].name).html();
+// add to attachments list
+if (!ref.add2attachment_list(ts, { name:'', html:content, classname:'uploading', complete:false }))
+ref.file_upload_id = ref.set_busy(true, 'uploading');
+// complete multipart content and post request
+multipart += dashdash + boundary + dashdash + crlf;
+args._uploadid = ts;
+$.ajax({
+type: 'POST',
+dataType: 'json',
+url: ref.url(ref.env.filedrop.action || 'upload', args),
+contentType: formdata ? false : 'multipart/form-data; boundary=' + boundary,
+processData: false,
+timeout: 0, // disable default timeout set in ajaxSetup()
+data: formdata || multipart,
+headers: {'X-Roundcube-Request': ref.env.request_token},
+xhr: function() { var xhr = jQuery.ajaxSettings.xhr(); if (!formdata && xhr.sendAsBinary) xhr.send = xhr.sendAsBinary; return xhr; },
+success: function(data){ ref.http_response(data); },
+error: function(o, status, err) { ref.http_error(o, status, err, null, 'attachment'); }
+});
+};
+// get contents of all dropped files
+var last = this.env.filedrop.single ? 0 : files.length - 1;
+for (var j=0, i=0, f; j <= last && (f = files[i]); i++) {
+if (!f.name) f.name = f.fileName;
+if (!f.size) f.size = f.fileSize;
+if (!f.type) f.type = 'application/octet-stream';
+// file name contains non-ASCII characters, do UTF8-binary string conversion.
+if (!formdata && /[^\x20-\x7E]/.test(f.name))
+f.name_bin = unescape(encodeURIComponent(f.name));
+// filter by file type if requested
+if (this.env.filedrop.filter && !f.type.match(new RegExp(this.env.filedrop.filter))) {
+// TODO: show message to user
+continue;
+}
+size += f.size;
+numfiles++;
+// do it the easy way with FormData (FF 4+, Chrome 5+, Safari 5+)
+if (formdata) {
+formdata.append(fieldname, f);
+if (j == last)
+return submit_data();
+}
+// use FileReader supporetd by Firefox 3.6
+else if (window.FileReader) {
+var reader = new FileReader();
+// closure to pass file properties to async callback function
+reader.onload = (function(file, j) {
+return function(e) {
+multipart += 'Content-Disposition: form-data; name="' + fieldname + '"';
+multipart += '; filename="' + (f.name_bin || file.name) + '"' + crlf;
+multipart += 'Content-Length: ' + file.size + crlf;
+multipart += 'Content-Type: ' + file.type + crlf + crlf;
+multipart += reader.result + crlf;
+multipart += dashdash + boundary + crlf;
+if (j == last)  // we're done, submit the data
+return submit_data();
+}
+})(f,j);
+reader.readAsBinaryString(f);
+}
+// Firefox 3
+else if (f.getAsBinary) {
+multipart += 'Content-Disposition: form-data; name="' + fieldname + '"';
+multipart += '; filename="' + (f.name_bin || f.name) + '"' + crlf;
+multipart += 'Content-Length: ' + f.size + crlf;
+multipart += 'Content-Type: ' + f.type + crlf + crlf;
+multipart += f.getAsBinary() + crlf;
+multipart += dashdash + boundary +crlf;
+if (j == last)
+return submit_data();
+}
+j++;
+}
+};
+// starts interval for keep-alive signal
+this.start_keepalive = function()
+{
+if (!this.env.session_lifetime || this.env.framed || this.env.extwin || this.task == 'login' || this.env.action == 'print')
+return;
+if (this._keepalive)
+clearInterval(this._keepalive);
+// use Math to prevent from an integer overflow (#5273)
+// maximum interval is 15 minutes, minimum is 30 seconds
+var interval = Math.min(1800, this.env.session_lifetime) * 0.5 * 1000;
+this._keepalive = setInterval(function() { ref.keep_alive(); }, interval < 30000 ? 30000 : interval);
+};
+// starts interval for refresh signal
+this.start_refresh = function()
+{
+if (!this.env.refresh_interval || this.env.framed || this.env.extwin || this.task == 'login' || this.env.action == 'print')
+return;
+if (this._refresh)
+clearInterval(this._refresh);
+this._refresh = setInterval(function(){ ref.refresh(); }, this.env.refresh_interval * 1000);
+};
+// sends keep-alive signal
+this.keep_alive = function()
+{
+if (!this.busy)
+this.http_request('keep-alive');
+};
+// sends refresh signal
+this.refresh = function()
+{
+if (this.busy) {
+// try again after 10 seconds
+setTimeout(function(){ ref.refresh(); ref.start_refresh(); }, 10000);
+return;
+}
+var params = {}, lock = this.set_busy(true, 'refreshing');
+if (this.task == 'mail' && this.gui_objects.mailboxlist)
+params = this.check_recent_params();
+params._last = Math.floor(this.env.lastrefresh.getTime() / 1000);
+this.env.lastrefresh = new Date();
+// plugins should bind to 'requestrefresh' event to add own params
+this.http_post('refresh', params, lock);
+};
+// returns check-recent request parameters
+this.check_recent_params = function()
+{
+var params = {_mbox: this.env.mailbox};
+if (this.gui_objects.mailboxlist)
+params._folderlist = 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;
+};
+/********************************************************/
+/*********            helper methods            *********/
+/********************************************************/
+/**
+* Quote html entities
+*/
+this.quote_html = function(str)
+{
+return String(str).replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
+};
+// get window.opener.rcmail if available
+this.opener = function(deep, filter)
+{
+var i, win = window.opener;
+// catch Error: Permission denied to access property rcmail
+try {
+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) {}
+};
+// check if we're in show mode or if we have a unique selection
+// and return the message uid
+this.get_single_uid = function()
+{
+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()
+{
+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
+this.get_message_mailbox = function(uid)
+{
+var msg = (this.env.messages && uid ? this.env.messages[uid] : null) || {};
+return msg.mbox || this.env.mailbox;
+};
+// build request parameters from single message id (maybe with mailbox name)
+this.params_from_uid = function(uid, params)
+{
+if (!params)
+params = {};
+params._uid = String(uid).split('-')[0];
+params._mbox = this.get_message_mailbox(uid);
+return params;
+};
+// gets cursor position
+this.get_caret_pos = function(obj)
+{
+if (obj.selectionEnd !== undefined)
+return obj.selectionEnd;
+return obj.value.length;
+};
+// moves cursor to specified position
+this.set_caret_pos = function(obj, pos)
+{
+try {
+if (obj.setSelectionRange)
+obj.setSelectionRange(pos, pos);
+}
+catch(e) {} // catch Firefox exception if obj is hidden
+};
+// get selected text from an input field
+this.get_input_selection = function(obj)
+{
+var start = 0, end = 0, normalizedValue = '';
+if (typeof obj.selectionStart == "number" && typeof obj.selectionEnd == "number") {
+normalizedValue = obj.value;
+start = obj.selectionStart;
+end = obj.selectionEnd;
+}
+return {start: start, end: end, text: normalizedValue.substr(start, end-start)};
+};
+// disable/enable all fields of a form
+this.lock_form = function(form, lock)
+{
+if (!form || !form.elements)
+return;
+var n, len, elm;
+if (lock)
+this.disabled_form_elements = [];
+for (n=0, len=form.elements.length; n<len; n++) {
+elm = form.elements[n];
+if (elm.type == 'hidden')
+continue;
+// remember which elem was disabled before lock
+if (lock && elm.disabled)
+this.disabled_form_elements.push(elm);
+else if (lock || $.inArray(elm, this.disabled_form_elements) < 0)
+elm.disabled = lock;
+}
+};
+this.mailto_handler_uri = function()
+{
+return location.href.split('?')[0] + '?_task=mail&_action=compose&_to=%s';
+};
+this.register_protocol_handler = function(name)
+{
+try {
+window.navigator.registerProtocolHandler('mailto', this.mailto_handler_uri(), name);
+}
+catch(e) {
+this.display_message(String(e), 'error');
+}
+};
+this.check_protocol_handler = function(name, elem)
+{
+var nav = window.navigator;
+if (!nav || (typeof nav.registerProtocolHandler != 'function')) {
+$(elem).addClass('disabled').click(function(){ return false; });
+}
+else if (typeof nav.isProtocolHandlerRegistered == 'function') {
+var status = nav.isProtocolHandlerRegistered('mailto', this.mailto_handler_uri());
+if (status)
+$(elem).parent().find('.mailtoprotohandler-status').html(status);
+}
+else {
+$(elem).click(function() { ref.register_protocol_handler(name); return false; });
+}
+};
+// Checks browser capabilities eg. PDF support, TIF support
+this.browser_capabilities_check = function()
+{
+if (!this.env.browser_capabilities)
+this.env.browser_capabilities = {};
+$.each(['pdf', 'flash', 'tiff', 'webp'], function() {
+if (ref.env.browser_capabilities[this] === undefined)
+ref.env.browser_capabilities[this] = ref[this + '_support_check']();
+});
+};
+// Returns browser capabilities string
+this.browser_capabilities = function()
+{
+if (!this.env.browser_capabilities)
+return '';
+var n, ret = [];
+for (n in this.env.browser_capabilities)
+ret.push(n + '=' + this.env.browser_capabilities[n]);
+return ret.join();
+};
+this.tiff_support_check = function()
+{
+this.image_support_check('tiff');
+return 0;
+};
+this.webp_support_check = function()
+{
+this.image_support_check('webp');
+return 0;
+};
+this.image_support_check = function(type)
+{
+window.setTimeout(function() {
+var img = new Image();
+img.onload = function() { ref.env.browser_capabilities[type] = 1; };
+img.onerror = function() { ref.env.browser_capabilities[type] = 0; };
+img.src = ref.assets_path('program/resources/blank.' + type);
+}, 10);
+};
+this.pdf_support_check = function()
+{
+var i, plugin = navigator.mimeTypes ? navigator.mimeTypes["application/pdf"] : {},
+plugins = navigator.plugins,
+len = plugins.length,
+regex = /Adobe Reader|PDF|Acrobat/i;
+if (plugin && plugin.enabledPlugin)
+return 1;
+if ('ActiveXObject' in window) {
+try {
+if (plugin = new ActiveXObject("AcroPDF.PDF"))
+return 1;
+}
+catch (e) {}
+try {
+if (plugin = new ActiveXObject("PDF.PdfCtrl"))
+return 1;
+}
+catch (e) {}
+}
+for (i=0; i<len; i++) {
+plugin = plugins[i];
+if (typeof plugin === 'String') {
+if (regex.test(plugin))
+return 1;
+}
+else if (plugin.name && regex.test(plugin.name))
+return 1;
+}
+window.setTimeout(function() {
+$('<object>').attr({
+data: ref.assets_path('program/resources/dummy.pdf'),
+type: 'application/pdf',
+style: 'position: "absolute"; top: -1000px; height: 1px; width: 1px'
+})
+.on('load error', function(e) {
+ref.env.browser_capabilities.pdf = e.type == 'load' ? 1 : 0;
+$(this).remove();
+})
+.appendTo($('body'));
+}, 10);
+return 0;
+};
+this.flash_support_check = function()
+{
+var plugin = navigator.mimeTypes ? navigator.mimeTypes["application/x-shockwave-flash"] : {};
+if (plugin && plugin.enabledPlugin)
+return 1;
+if ('ActiveXObject' in window) {
+try {
+if (plugin = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
+return 1;
+}
+catch (e) {}
+}
+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
+this.set_cookie = function(name, value, expires)
+{
+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)
+{
+var item, result;
+// TODO: add encryption
+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)
+{
+// 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)
+{
+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
+// some static methods
+rcube_webmail.long_subject_title = function(elem, indent)
+{
+if (!elem.title) {
+var $elem = $(elem);
+if ($elem.width() + (indent || 0) * 15 > $elem.parent().width())
+elem.title = rcube_webmail.subject_text(elem);
+}
+};
+rcube_webmail.long_subject_title_ex = function(elem)
+{
+if (!elem.title) {
+var $elem = $(elem),
+txt = $.trim($elem.text()),
+tmp = $('<span>').text(txt)
+.css({'position': 'absolute', 'float': 'left', 'visibility': 'hidden',
+'font-size': $elem.css('font-size'), 'font-weight': $elem.css('font-weight')})
+.appendTo($('body')),
+w = tmp.width();
+tmp.remove();
+if (w + $('span.branch', $elem).width() * 15 > $elem.width())
+elem.title = rcube_webmail.subject_text(elem);
+}
+};
+rcube_webmail.subject_text = function(elem)
+{
+var t = $(elem).clone();
+t.find('.skip-on-drag,.skip-content,.voice').remove();
+return t.text();
+};
+// set event handlers on all iframe elements (and their contents)
+rcube_webmail.set_iframe_events = function(events)
+{
+$('iframe').each(function() {
+var frame = $(this);
+$.each(events, function(event_name, event_handler) {
+frame.on('load', function(e) {
+try { $(this).contents().on(event_name, event_handler); }
+catch (e) {/* catch possible permission error in IE */ }
+});
+try { frame.contents().on(event_name, event_handler); }
+catch (e) {/* catch possible permission error in IE */ }
+});
+});
+};
+rcube_webmail.prototype.get_cookie = getCookie;
+// copy event engine prototype
+rcube_webmail.prototype.addEventListener = rcube_event_engine.prototype.addEventListener;
+rcube_webmail.prototype.removeEventListener = rcube_event_engine.prototype.removeEventListener;
+rcube_webmail.prototype.triggerEvent = rcube_event_engine.prototype.triggerEvent;