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	diff --git a/public_html/js/files_api.js b/public_html/js/files_api.js
	index aca393e..2bfcfdb 100644
	--- a/public_html/js/files_api.js
	+++ b/public_html/js/files_api.js
	@@ -1,1266 +1,1268 @@
	/**
	+--------------------------------------------------------------------------+
	\| This file is part of the Kolab File API \|
	\| \|
	\| Copyright (C) 2012-2015, Kolab Systems AG \|
	\| \|
	\| This program is free software: you can redistribute it and/or modify \|
	\| it under the terms of the GNU Affero General Public License as published \|
	\| by the Free Software Foundation, either version 3 of the License, or \|
	\| (at your option) any later version. \|
	\| \|
	\| This program is distributed in the hope that it will be useful, \|
	\| but WITHOUT ANY WARRANTY; without even the implied warranty of \|
	\| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the \|
	\| GNU Affero General Public License for more details. \|
	\| \|
	\| You should have received a copy of the GNU Affero General Public License \|
	\| along with this program. If not, see <http://www.gnu.org/licenses/> \|
	+--------------------------------------------------------------------------+
	\| Author: Aleksander Machniak <machniak@kolabsys.com> \|
	+--------------------------------------------------------------------------+
	*/

	function files_api()
	{
	var ref = this;

	// default config
	this.sessions = {};
	this.translations = {};
	this.env = {
	url: 'api/',
	directory_separator: '/',
	resources_dir: 'resources'
	};


	/*********************************************************/
	/******* Basic utilities *******/
	/*********************************************************/

	// 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(s) to the client environment
	this.tdef = function(p, value)
	{
	if (typeof p == 'string')
	this.translations[p] = value;
	else if (typeof p == 'object')
	$.extend(this.translations, p);
	};

	// return a localized string
	this.t = function(label)
	{
	if (this.translations[label])
	return this.translations[label];
	else
	return label;
	};

	/********************************************************/
	/******* Remote request methods *******/
	/********************************************************/

	// send a http POST request to the API service
	this.post = function(action, data, func)
	{
	var url = this.env.url + '?method=' + action;

	if (!func) func = 'response';

	this.set_request_time();

	return $.ajax({
	type: 'POST', url: url, data: JSON.stringify(data), dataType: 'json',
	contentType: 'application/json; charset=utf-8',
	success: function(response) { if (typeof func == 'function') func(response); else ref[func](response); },
	error: function(o, status, err) { ref.http_error(o, status, err, data); },
	cache: false,
	beforeSend: function(xmlhttp) { xmlhttp.setRequestHeader('X-Session-Token', ref.env.token); }
	});
	};

	// send a http GET request to the API service
	this.get = function(action, data, func)
	{
	var url = this.env.url;

	if (!func) func = 'response';

	this.set_request_time();
	data.method = action;

	return $.ajax({
	type: 'GET', url: url, data: data, dataType: 'json',
	success: function(response) { if (typeof func == 'function') func(response); else ref[func](response); },
	error: function(o, status, err) { ref.http_error(o, status, err, data); },
	cache: false,
	beforeSend: function(xmlhttp) { xmlhttp.setRequestHeader('X-Session-Token', ref.env.token); }
	});
	};

	// send request with auto-selection of POST/GET method
	this.request = function(action, data, func)
	{
	// Use POST for modification actions with probable big request size
	var method = /_(create\|delete\|move\|copy\|update\|auth\|subscribe\|unsubscribe\|invite\|decline\|request\|accept\|remove)$/.test(action) ? 'post' : 'get';
	return this[method](action, data, func);
	};

	// handle HTTP request errors
	this.http_error = function(request, status, err, data)
	{
	var errmsg = request.statusText;

	this.set_busy(false);
	request.abort();

	if (request.status && errmsg)
	this.display_message(this.t('servererror') + ' (' + errmsg + ')', 'error');
	};

	this.response = function(response)
	{
	this.update_request_time();
	this.set_busy(false);

	return this.response_parse(response);
	};

	this.response_parse = function(response)
	{
	if (!response \|\| response.status != 'OK') {
	// Logout on invalid-session error
	if (response && response.code == 403)
	this.logout(response);
	else
	this.display_message(response && response.reason ? response.reason : this.t('servererror'), 'error');

	return false;
	}

	return true;
	};


	/*********************************************************/
	/******* Utilities *******/
	/*********************************************************/

	// Called on "session expired" session
	this.logout = function(response) {};

	// set state
	this.set_busy = function(state, message) {};

	// displays error message
	this.display_message = function(label, type) {};

	// called when a request timed out
	this.request_timed_out = function() {};

	// called on start of the request
	this.set_request_time = function() {};

	// called on request response
	this.update_request_time = function() {};


	/*********************************************************/
	/******* Helpers *******/
	/*********************************************************/

	// compose a valid url with the given parameters
	this.url = function(action, query)
	{
	var k, param = {},
	querystring = typeof query === 'string' ? '&' + query : '';

	if (typeof action !== 'string')
	query = action;
	else if (!query \|\| typeof query !== 'object')
	query = {};

	// overwrite task name
	if (action)
	query.method = action;

	// remove undefined values
	for (k in query) {
	if (query[k] !== undefined && query[k] !== null)
	param[k] = query[k];
	}

	return '?' + $.param(param) + querystring;
	};

	// fill folder selector with options
	this.folder_select_element = function(select, params)
	{
	var options = [],
	selected = params && params.selected ? params.selected : this.env.folder;

	if (params && params.empty)
	options.push($('<option>').val('').text('---'));

	$.each(this.env.folders, function(i, f) {
	var n, name = escapeHTML(f.name);

	// skip read-only folders
	if (params && params.writable && (f.readonly \|\| f.virtual)) {
	var folder, found = false, prefix = i + ref.env.directory_separator;

	// for virtual folders check if there's any writable subfolder
	for (n in ref.env.folders) {
	if (n.indexOf(prefix) === 0) {
	folder = ref.env.folders[n];
	if (!folder.virtual && !folder.readonly) {
	found = true;
	break;
	}
	}
	}

	if (!found)
	return;
	}

	for (n=0; n<f.depth; n++)
	name = '   ' + name;

	options.push($('<option>').val(i).html(name));
	});

	select.empty().append(options);

	if (selected)
	select.val(selected);
	};

	// Folder list parser, converts it into structure
	this.folder_list_parse = function(list, num, subscribed)
	{
	var i, n, j, items, items_len, f, tmp, folder, readonly,
	subs_support, subs_prefixes = {}, found,
	separator = this.env.directory_separator,
	len = list ? list.length : 0, folders = {};

	if (!num) num = 1;

	if (subscribed === undefined)
	subscribed = true;

	// prepare subscriptions support detection
	if (len && this.env.caps) {
	subs_support = !!this.env.caps.SUBSCRIPTIONS;
	$.each(this.env.caps.MOUNTPOINTS \|\| [], function(i, v) {
	subs_prefixes[i] = !!v.SUBSCRIPTIONS;
	});
	}

	for (i=0; i<len; i++) {
	folder = list[i];
	readonly = false;

	// in extended format folder is an object
	if (typeof folder !== 'string') {
	readonly = folder.readonly;
	folder = folder.folder;
	}

	items = folder.split(separator);
	items_len = items.length;

	for (n=0; n<items_len-1; n++) {
	tmp = items.slice(0, n+1);
	f = tmp.join(separator);
	if (!folders[f])
	folders[f] = {name: tmp.pop(), depth: n, id: 'f'+num++, virtual: 1};
	}

	folders[folder] = {
	name: items.pop(),
	depth: items_len-1,
	id: 'f' + num++,
	readonly: readonly
	};

	// set subscription flag, leave undefined if the source does not support subscriptions
	found = false;
	for (j in subs_prefixes) {
	if (folder === j) {
	// this is a mount point
	found = true;
	break;
	}
	if (folder.indexOf(j + separator) === 0) {
	if (subs_prefixes[j])
	folders[folder].subscribed = subscribed;
	found = true;
	break;
	}
	}

	if (!found && subs_support)
	folders[folder].subscribed = subscribed;
	}

	return folders;
	};

	// folder structure presentation (structure icons)
	this.folder_list_tree = function(folders)
	{
	var i, n, diff, prefix, tree = [], folder;

	for (i in folders) {
	items = i.split(this.env.directory_separator);
	items_len = items.length;

	// skip root
	if (items_len < 2) {
	tree = [];
	continue;
	}

	folders[i].tree = [1];
	prefix = items.slice(0, items_len-1).join(this.env.directory_separator) + this.env.directory_separator;

	for (n=0; n<tree.length; n++) {
	folder = tree[n];
	diff = folders[folder].depth - (items_len - 1);
	if (diff >= 0 && folder.indexOf(prefix) === 0)
	folders[folder].tree[diff] \|= 2;
	}

	tree.push(i);
	}

	for (i in folders) {
	if (tree = folders[i].tree) {
	var html = '', divs = [];
	for (n=0; n<folders[i].depth; n++) {
	if (tree[n] > 2)
	divs.push({'class': 'l3', width: 15});
	else if (tree[n] > 1)
	divs.push({'class': 'l2', width: 15});
	else if (tree[n] > 0)
	divs.push({'class': 'l1', width: 15});
	// separator
	else if (divs.length && !divs[divs.length-1]['class'])
	divs[divs.length-1].width += 15;
	else
	divs.push({'class': null, width: 15});
	}

	for (n=divs.length-1; n>=0; n--) {
	if (divs[n]['class'])
	html += '<span class="tree '+divs[n]['class']+'" />';
	else
	html += '<span style="width:'+divs[n].width+'px" />';
	}

	if (html)
	$('#' + folders[i].id + ' span.branch').html(html);
	}
	}
	};

	// Get editing sessions on the specified file
	this.file_sessions = function(file)
	{
	var sessions = [], folder = this.file_path(file);

	$.each(this.sessions[folder] \|\| {}, function(session_id, session) {
	if (session.file == file) {
	session.id = session_id;
	sessions.push(session);
	}
	});

	return sessions;
	};

	// convert content-type string into class name
	this.file_type_class = function(type)
	{
	if (!type)
	return '';

	var classes = [];

	classes.push(type.replace(/\/.*/, ''));
	classes.push(type.replace(/[^a-z0-9]/g, '_'));

	return classes.join(' ');
	};

	// convert bytes into number with size unit
	this.file_size = function(size)
	{
	if (size >= 1073741824)
	return parseFloat(size/1073741824).toFixed(2) + ' GB';
	if (size >= 1048576)
	return parseFloat(size/1048576).toFixed(2) + ' MB';
	if (size >= 1024)
	return parseInt(size/1024) + ' kB';

	return parseInt(size \|\| 0) + ' B';
	};

	// Extract file name from full path
	this.file_name = function(path)
	{
	var path = path.split(this.env.directory_separator);
	return path.pop();
	};

	// Extract file path from full path
	this.file_path = function(path)
	{
	var path = path.split(this.env.directory_separator);
	path.pop();
	return path.join(this.env.directory_separator);
	};

	// compare two sortable objects
	this.sort_compare = function(data1, data2)
	{
	var key = this.env.sort_col \|\| 'name';

	if (key == 'mtime')
	key = 'modified';

	data1 = data1[key];
	data2 = data2[key];

	if (key == 'size' \|\| key == 'modified')
	// numeric comparison
	return this.env.sort_reverse ? data2 - data1 : data1 - data2;
	else {
	// use Array.sort() for string comparison
	var arr = [data1, data2];
	arr.sort(function (a, b) {
	// @TODO: use localeCompare() arguments for better results
	return a.localeCompare(b);
	});

	if (this.env.sort_reverse)
	arr.reverse();

	return arr[0] === data2 ? 1 : -1;
	}
	};

	// Checks if specified mimetype is supported natively by the browser (return 1)
	// or can be displayed in the browser using File API viewer (return 2)
	// or is editable (using File API viewer, Manticore or WOPI) (return 4)
	this.file_type_supported = function(type, capabilities)
	{
	var i, t, res = 0, regexps = [], img = 'jpg\|jpeg\|gif\|bmp\|png',
	caps = this.env.browser_capabilities \|\| {},
	doc = /^application\/vnd.oasis.opendocument.(text)$/i;

	type = String(type).toLowerCase();

	if (capabilities) {
	// Manticore?
	$.each(capabilities.MANTICORE_EDITABLE \|\| [], function() {
	if (type == this) {
	res \|= 4;
	return false;
	}
	});
	// old version of the check
	if (capabilities && capabilities.MANTICORE && doc.test(type))
	res \|= 4;

	// WOPI (Collabora Online)?
	$.each(capabilities.WOPI_EDITABLE \|\| [], function() {
	if (type == this) {
	res \|= 4;
	return false;
	}
	});
	}

	if (caps.tiff)
	img += '\|tiff';

	if ((new RegExp('^image/(' + img + ')$', 'i')).test(type))
	res \|= 1;

	// prefer text viewer for any text type
	if (/^text\/(?!(pdf\|x-pdf))/i.test(type))
	res \|= 2 \| 4;

	if (caps.pdf) {
	regexps.push(/^application\/(pdf\|x-pdf\|acrobat\|vnd.pdf)/i);
	regexps.push(/^text\/(pdf\|x-pdf)/i);
	}

	if (caps.flash)
	regexps.push(/^application\/x-shockwave-flash/i);

	for (i in regexps)
	if (regexps[i].test(type))
	res \|= 1;

	for (i in navigator.mimeTypes) {
	t = navigator.mimeTypes[i].type;
	if (t == type && navigator.mimeTypes[i].enabledPlugin)
	res \|= 1;
	}

	// types with viewer support
	if ($.inArray(type, this.env.supported_mimetypes) > -1)
	res \|= 2;

	return res;
	};

	// Return browser capabilities
	this.browser_capabilities = function()
	{
	var i, caps = [], ctypes = ['pdf', 'flash', 'tiff'];

	for (i in ctypes)
	if (this.env.browser_capabilities[ctypes[i]])
	caps.push(ctypes[i]);

	return caps;
	};

	// Checks browser capabilities eg. PDF support, TIF support
	this.browser_capabilities_check = function()
	{
	if (!this.env.browser_capabilities)
	this.env.browser_capabilities = {};

	if (this.env.browser_capabilities.pdf === undefined)
	this.env.browser_capabilities.pdf = this.pdf_support_check();

	if (this.env.browser_capabilities.flash === undefined)
	this.env.browser_capabilities.flash = this.flash_support_check();

	if (this.env.browser_capabilities.tiff === undefined)
	this.tiff_support_check();
	};

	this.tiff_support_check = function()
	{
	var img = new Image(), ref = this;

	img.onload = function() { ref.env.browser_capabilities.tiff = 1; };
	img.onerror = function() { ref.env.browser_capabilities.tiff = 0; };
	img.src = this.env.resources_dir + '/blank.tiff';
	};

	this.pdf_support_check = function()
	{
	var plugin = navigator.mimeTypes ? navigator.mimeTypes["application/pdf"] : {},
	plugins = navigator.plugins,
	len = plugins.length,
	regex = /Adobe Reader\|PDF\|Acrobat/i,
	ref = this;

	if (plugin && plugin.enabledPlugin)
	return 1;

	if (window.ActiveXObject) {
	try {
	if (axObj = new ActiveXObject("AcroPDF.PDF"))
	return 1;
	}
	catch (e) {}
	try {
	if (axObj = 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;
	}

	return 0;
	};

	this.flash_support_check = function()
	{
	var plugin = navigator.mimeTypes ? navigator.mimeTypes["application/x-shockwave-flash"] : {};

	if (plugin && plugin.enabledPlugin)
	return 1;

	if (window.ActiveXObject) {
	try {
	if (axObj = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"))
	return 1;
	}
	catch (e) {}
	}

	return 0;
	};

	// converts number of seconds into HH:MM:SS format
	this.time_format = function(s)
	{
	s = parseInt(s);

	if (s >= 606024)
	return '-';

	return (new Date(1970, 1, 1, 0, 0, s, 0)).toTimeString().replace(/.(\d{2}:\d{2}:\d{2})./, '$1');
	};

	// same as str.split(delimiter) but it ignores delimiters within quoted strings
	this.explode_quoted_string = function(str, delimiter)
	{
	var result = [],
	strlen = str.length,
	q, p, i, chr, last;

	for (q = p = i = 0; i < strlen; i++) {
	chr = str.charAt(i);
	if (chr == '"' && last != '\\') {
	q = !q;
	}
	else if (!q && chr == delimiter) {
	result.push(str.substring(p, i));
	p = i + 1;
	}
	last = chr;
	}

	result.push(str.substr(p));
	return result;
	};
	};

	/**
	* Class implementing Document Editor Host API
	* supporting Manticore and Collabora Online
	*
	* Configuration:
	* iframe - editor iframe element
	* title_input - document title element
	* export_menu - export formats list
	* members_list - collaborators list
	* photo_url - <img> src for a collaborator
	* photo_default_url - default image of a collaborator
	* domain - iframe origin
	*
	* set_busy, display_message, hide_message, gettext - common methods
	*
	* api - Chwala files_api instance
	* interval - how often to check for invitations in seconds (default: 60)
	* owner - user identifier
	* invitationMore - add "more" link into invitation notices
	* invitationChange - method to handle invitation state updates
	* invitationSave - method to handle invitation state update
	*/
	function document_editor_api(conf)
	{
	var domain, editor,
	is_wopi = false,
	locks = {},
	callbacks = {},
	members = {},
	env = {},
	self = this;

	// Sets state
	this.set_busy = function(state, message)
	{
	if (conf.set_busy)
	return conf.set_busy(state, message);
	};

	// Displays error/notification message
	this.display_message = function(label, type, is_txt, timeout)
	{
	if (conf.display_message)
	return conf.display_message(label, type, is_txt, timeout);

	if (type == 'error')
	alert(is_txt ? label : this.gettext(label));
	};

	// Hides the error/notification message
	this.hide_message = function(id)
	{
	if (conf.hide_message)
	return conf.hide_message(id);
	};

	// Localization method
	this.gettext = function(label)
	{
	if (conf.gettext)
	return conf.gettext(label);

	return label;
	};

	// Handle messages from the editor
	this.message_handler = function(data)
	{
	var result;

	data = this.message_convert(data);

	if (data.id && callbacks[data.id])
	result = callbacks[data.id](data);
	else if (typeof data.callback == 'function')
	result = data.callback(data);

	if (result !== false && data.name && conf[data.name])
	result = conf[data.name](data);

	delete callbacks[data.id];

	if (locks[data.id]) {
	this.set_busy(false);
	this.hide_message(data.id);
	delete locks[data.id];
	}

	if (result === false)
	return;

	switch (data.name) {
	case 'ready':
	this.ready();
	break;

	case 'titleChanged':
	if (conf.title_input)
	$(conf.title_input).val(data.value);
	break;

	case 'memberAdded':
	// @TODO: display notification?
	if (conf.members_list)
	$(conf.members_list).append(this.member_item(data));
	break;

	case 'memberRemoved':
	// @TODO: display notification?
	if (conf.members_list && members[data.memberId]) {
	$('#' + members[data.memberId].id, conf.members_list).remove();
	delete members[data.memberId];
	}
	break;

	case 'sessionClosed':
	if (!env.session_terminated)
	this.display_message('sessionterminated', 'error');
	break;
	}
	};

	// Convert WOPI postMessage into internal (Manticore) format
	this.message_convert = function(data)
	{
	// In WOPI data is JSON-stringified
	if ($.type(data) == 'string')
	data = JSON.parse(data);

	// non-WOPI format
	if (!data.MessageId)
	return data;

	var value = data.Values,
	result = {name: data.MessageId, wopi: true, id: data.MessageId},
	member_fn = function(value) {
	var color = value.Color;

	// make sure color is in css hex format
	if (color) {
	if ($.type(color) == 'string' && color.charAt(0) != '#')
	color = '#' + color;
	else if ($.type(color) == 'number')
	color = ((color)>>>0).toString(16).slice(-6);
	color = '#' + ("000000").substring(0, 6 - color.length) + color;
	}

	return {
	memberId: value.ViewId,
	email: value.UserId,
	fullName: value.UserName,
	color: color
	};
	};

	switch (result.name) {
	// WOPI editor is ready
	case 'App_LoadingStatus':
	is_wopi = true;

	// wait for 'Document_Loaded' status, this is when
	// we can finally start using the CODE postMessage API
	if (value.Status != 'Document_Loaded')
	return result;

	result.name = 'ready';

	// Enable Save button, there's no documentChanged event in WOPI
	if (typeof conf.documentChanged == 'function')
	conf.documentChanged();
	break;

	// WOPI session member exited
	case 'View_Removed':
	result.name = 'memberRemoved';
	result.memberId = value.ViewId;
	break;

	// WOPI session member entered
	case 'View_Added':
	result.name = 'memberAdded';
	$.extend(result, member_fn(value));
	break;

	// Listing WOPI session members
	case 'Get_Views_Resp':
	result.list = $.map(value \|\| [], member_fn);
	result.callback = function(data) { self.members_list(data.list); return false; };
	break;

	case 'Session_Closed':
	result.name = 'sessionClosed';
	break;

	case 'Get_Export_Formats_Resp':
	result.list = $.map(value \|\| [], function(v) { return {label: v.Label, format: v.Format}; });
	result.callback = function(data) { self.export_menu_init(data.list); return false; };
	break;
	}

	return result;
	};

	// Sends Manticore postMessage
	this.post = function(action, data, callback, lock_label)
	{
	if (is_wopi) {
	// replace Manticore messages with WOPI messages
	// ignore unsupported functionality
	switch (action) {
	case 'getMembers':
	// ignore, Collabora Online sends View_Added for current user
	break;

	case 'actionSave':
	this.wopi_post('Action_Save', {DontTerminateEdit: true, DontSaveIfUnmodified: true});

	// Enable Save button, there's no documentChanged event in WOPI
	if (typeof conf.documentChanged == 'function')
	conf.documentChanged();
	break;

	case 'actionExport':
	this.wopi_post('Action_Export', {Format: data.value});
	break;

	case 'getExportFormats':
	this.wopi_post('Get_Export_Formats');
	break;
	}

	return;
	}

	if (!data) data = {};

	if (lock_label) {
	data.id = this.set_busy(true, this.gettext(lock_label));
	locks[data.id] = true;
	}

	if (!data.id)
	data.id = (new Date).getTime();

	// make sure the id is not in use
	while (callbacks[data.id])
	data.id++;

	data.name = action;

	callbacks[data.id] = callback;

	editor.postMessage(data, domain);
	};

	// Sends WOPI postMessage
	this.wopi_post = function(action, data)
	{
	var msg = {
	MessageId: action,
	SendTime: Date.now(),
	Values: data \|\| {}
	};

	editor.postMessage(JSON.stringify(msg), domain);
	};

	// Callback for 'ready' message
	this.ready = function()
	{
	if (this.init_lock) {
	this.set_busy(false);
	this.hide_message(this.init_lock);
	delete this.init_lock;
	}

	if (conf.export_menu)
	this.export_menu_load();

	if (conf.members_list)
	this.get_members(function(data) { self.members_list(data.value); });

	if (conf.title_input)
	this.get_title(function(data) {
	$(conf.title_input).val(data.value);
	});
	};

	// Save current document
	this.save = function(callback)
	{
	this.post('actionSave', {}, callback, 'saving');
	};

	// Terminate session
	this.terminate = function()
	{
	// remember that user terminated the session
	// to skip the warning on Session_Closed
	env.session_terminated = true;
	conf.sessionClosed = null;

	// we send it only to WOPI editor, Manticore session will
	// be terminated by Chwala backend
	if (is_wopi)
	this.wopi_post('Close_Session');
	};

	// Print document
	this.print = function()
	{
	// this is implemented only by WOPI editor
	if (is_wopi)
	this.wopi_post('Action_Print');
	};

	// Export/download current document
	this.export = function(type, callback)
	{
	// If the specified type is not supported
	// TODO: https://bugs.documentfoundation.org/show_bug.cgi?id=104125
	if ($.inArray(type, env.supported_formats \|\| []) == -1)
	type = (env.supported_formats \|\| [])[0];

	if (type)
	this.post('actionExport', {value: type}, callback);
	};

	// Get supported export formats and create content of menu element
	this.export_menu_load = function()
	{
	this.post('getExportFormats', {}, function(data) { self.export_menu_init(data.value); });
	};

	this.export_menu_init = function(formats)
	{
	var items = [];

	env.supported_formats = [];

	$.each(formats \|\| [], function(i, v) {
	env.supported_formats.push(v.format);
	items.push($('<li>').attr({role: 'menuitem'}).append(
	$('<a>').attr({href: '#', role: 'button', tabindex: 0, 'aria-disabled': false, 'class': 'active'})
	.text(v.label).click(function() { self.export(v.format); })
	));
	});

	$(conf.export_menu).html('').append(items);
	};

	// Get document title
	this.get_title = function(callback)
	{
	this.post('getTitle', {}, callback);
	};

	// Set document title
	this.set_title = function(title, callback)
	{
	this.post('setTitle', {value: title}, callback);
	};

	// Get document session members
	this.get_members = function(callback)
	{
	this.post('getMembers', {}, callback);
	};

	// Creates session member image element
	this.member_item = function(member, id)
	{
	member.id = 'member' + (id \|\| (new Date).getTime());
	member.name = member.fullName + ' (' + member.email + ')';

	members[member.memberId] = member;

	var img = $('<img>').attr({title: member.name, id: member.id, 'class': 'photo', src: conf.photo_default_url})
	.css({'border-color': member.color})
	.text(name);

	if (conf.photo_url) {
	img.attr('src', conf.photo_url.replace(/%email/, urlencode(member.email)));
	if (conf.photo_default_url)
	img.on('error', function() { this.src = conf.photo_default_url; });
	}

	return img;
	};

	this.members_list = function(list)
	{
	var images = [], id = (new Date).getTime();

	$.each(list \|\| [], function() {
	images.push(self.member_item(this, id++));
	});

	$(conf.members_list).html('').append(images);
	};

	// track changes in invitations
	this.track_invitations = function()
	{
	conf.api.request('invitations', {timestamp: this.invitations_timestamp \|\| -1}, this.parse_invitations);
	this.invitations_timeout = setTimeout(function() { self.track_invitations(); }, (conf.interval \|\| 60) * 1000);
	};

	// parse 'invitations' response
	this.parse_invitations = function(response)
	{
	if (!conf.api.response(response) \|\| !response.result)
	return;

	var invitation_change = function(invitation) {
	var msg = self.invitation_msg(invitation);

	if (conf.invitationMore)
	msg = $('<div>')
	.append($('<span>').text(msg + ' '))
	.append($('<a>').text(self.gettext('more')).attr('id', invitation.id)).html();

	self.display_message(msg, 'notice', true, 30);

	// update existing sessions info
	if (conf.api && conf.api.sessions && invitation.file) {
	var session, folder = conf.api.file_path(invitation.file),
	is_invited = function() {
	return !invitation.is_session_owner && /^(invited\|accepted)/.test(invitation.status);
	};

	$.each(conf.api.sessions[folder] \|\| {}, function(i, s) {
	if (i == invitation.session_id \|\| s.file == invitation.file) {
	if (is_invited())
	conf.api.sessions[folder][i].is_invited = true;
	if (s.id == invitation.session_id)
	session = conf.api.sessions[folder][i];
	}
	});

	if (!session) {
	if (!conf.api.sessions[folder])
	conf.api.sessions[folder] = {};
	conf.api.sessions[folder][invitation.session_id] = {
	owner: invitation.owner,
	owner_name: invitation.owner_name,
	is_owner: invitation.is_session_owner,
	is_invited: is_invited(),
	file: invitation.file
	};
	}
	}

	if (conf.invitationChange)
	conf.invitationChange(invitation);
	}

	$.each(response.result.list \|\| [], function(i, invitation) {
	invitation.id = 'i' + (response.result.timestamp + i);
	invitation.is_session_owner = invitation.user != conf.owner;

	// display notifications
	if (!invitation.is_session_owner) {
	if (invitation.status == 'invited' \|\| invitation.status == 'declined-owner' \|\| invitation.status == 'accepted-owner') {
	invitation_change(invitation);
	}
	}
	else {
	if (invitation.status == 'accepted' \|\| invitation.status == 'declined' \|\| invitation.status == 'requested') {
	invitation_change(invitation);
	}
	}
	});

	self.invitations_timestamp = response.result.timestamp;
	};

	this.invitation_msg = function(invitation)
	{
	return self.gettext(invitation.status.replace('-', '') + 'notice')
	.replace('$user', invitation.user_name ? invitation.user_name : invitation.user)
	.replace('$owner', invitation.owner_name ? invitation.owner_name : invitation.owner)
	.replace('$file', invitation.filename);
	};

	// Request access to the editing session
	this.invitation_request = function(invitation)
	{
	var params = {id: invitation.session_id, user: invitation.user \|\| ''};

	conf.api.req = this.set_busy(true, 'invitationrequesting');
	conf.api.request('document_request', params, function(response) {
	self.invitation_response(response, invitation, 'requested');
	});
	};

	// Accept an invitations to the editing session
	this.invitation_accept = function(invitation)
	{
	var params = {id: invitation.session_id, user: invitation.user \|\| ''};

	conf.api.req = this.set_busy(true, 'invitationaccepting');
	conf.api.request('document_accept', params, function(response) {
	self.invitation_response(response, invitation, 'accepted');
	});
	};

	// Decline an invitations to the editing session
	this.invitation_decline = function(invitation)
	{
	var params = {id: invitation.session_id, user: invitation.user \|\| ''};

	conf.api.req = this.set_busy(true, 'invitationdeclining');
	conf.api.request('document_decline', params, function(response) {
	self.invitation_response(response, invitation, 'declined');
	});
	};

	// document_decline response handler
	this.invitation_response = function(response, invitation, status)
	{
	if (!conf.api.response(response))
	return;

	invitation.status = status;

	if (conf.invitationSaved)
	conf.invitationSaved(invitation);
	};


	if (!conf)
	conf = {};

	// Got editor iframe, use editor's API
	if (conf.iframe) {
	+ // Use iframe's onload event to not send the message to early,
	+ // if that happens WOPI will not accept any messages later
	+ $(conf.iframe).on('load', function() { self.wopi_post('Host_PostmessageReady'); });
	+
	editor = conf.iframe.contentWindow;
	domain = conf.domain;

	if (!domain && /^(https?:\/\/[^/]+)/i.test(conf.iframe.src))
	domain = RegExp.$1;

	// Register 'message' event to receive messages from the editor iframe
	window.addEventListener('message', function(event) {
	if (event.source == editor && event.origin == domain) {
	self.message_handler(event.data);
	}
	});

	// Bind for document title changes
	if (conf.title_input)
	$(conf.title_input).change(function() { self.set_title($(this).val()); });

	// Display loading message
	this.init_lock = this.set_busy(true, 'loading');
	-
	- this.wopi_post('Host_PostmessageReady');
	}

	if (conf.api)
	this.track_invitations();
	};

	// Add escape() method to RegExp object
	// http://dev.rubyonrails.org/changeset/7271
	RegExp.escape = function(str)
	{
	return String(str).replace(/([.*+?^=!:${}()\|[\]\/\\])/g, '\\$1');
	};

	// define String's startsWith() method for old browsers
	if (!String.prototype.startsWith) {
	String.prototype.startsWith = function(search, position) {
	position = position \|\| 0;
	return this.slice(position, search.length) === search;
	};
	};

	// make a string URL safe (and compatible with PHP's rawurlencode())
	function urlencode(str)
	{
	if (window.encodeURIComponent)
	return encodeURIComponent(str).replace('*', '%2A');

	return escape(str)
	.replace('+', '%2B')
	.replace('*', '%2A')
	.replace('/', '%2F')
	.replace('@', '%40');
	};

	function escapeHTML(str)
	{
	return str === undefined ? '' : String(str)
	.replace(/&/g, '&')
	.replace(/>/g, '>')
	.replace(/</g, '<');
	};

	function object_is_empty(obj)
	{
	if (obj)
	for (var i in obj)
	if (i !== null)
	return true;

	return false;
	}

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