mirror of
https://github.com/gyurix1968/guacamole-client.git
synced 2025-09-10 15:11:22 +00:00
Organize root UI into separate JavaScript and HTML files.
This commit is contained in:
Michael Jumper
390
guacamole/src/main/webapp/scripts/root-ui.js
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390
guacamole/src/main/webapp/scripts/root-ui.js
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/*
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* Guacamole - Clientless Remote Desktop
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* Copyright (C) 2010 Michael Jumper
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* General set of UI elements and UI-related functions regarding user login and
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* connection management.
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*/
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var GuacamoleRootUI = {
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"sections": {
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"login_form" : document.getElementById("login-form"),
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"recent_connections" : document.getElementById("recent-connections"),
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"other_connections" : document.getElementById("other-connections")
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},
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"messages": {
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"login_error" : document.getElementById("login-error"),
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"no_recent_connections" : document.getElementById("no-recent")
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},
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"fields": {
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"username" : document.getElementById("username"),
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"password" : document.getElementById("password"),
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"clipboard" : document.getElementById("clipboard")
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},
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"buttons": {
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"login" : document.getElementById("login"),
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"logout" : document.getElementById("logout")
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},
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"settings": {
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"auto_fit" : document.getElementById("auto-fit"),
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"disable_sound" : document.getElementById("disable-sound")
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},
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"views": {
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"login" : document.getElementById("login-ui"),
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"connections" : document.getElementById("connection-list-ui")
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},
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"session_state" : new GuacamoleSessionState()
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};
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/**
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* Attempts to login the given user using the given password, throwing an
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* error if the process fails.
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*
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* @param {String} username The name of the user to login as.
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* @param {String} password The password to use to authenticate the user.
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*/
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GuacamoleRootUI.login = function(username, password) {
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// Get parameters from query string
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var parameters = window.location.search.substring(1);
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// Get username and password from form
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var data =
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"username=" + encodeURIComponent(username)
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+ "&password=" + encodeURIComponent(password)
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// Include query parameters in submission data
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if (parameters) data += "&" + parameters;
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// Log in
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var xhr = new XMLHttpRequest();
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xhr.open("POST", "login", false);
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xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
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xhr.send(data);
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// Handle failures
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if (xhr.status != 200)
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throw new Error("Invalid login");
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};
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/**
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* Set of thumbnails for each connection, indexed by ID.
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*/
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GuacamoleRootUI.Thumbnails = new (function() {
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var thumbnails =
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JSON.parse(localStorage.getItem("GUAC_THUMBNAILS") || "{}");
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/**
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* Returns the URL for the thumbnail of the connection with the given ID,
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* or undefined if no thumbnail is associated with that connection.
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*/
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this.getURL = function(id) {
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return thumbnails[id];
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};
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});
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/**
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* A connection UI object which can be easily added to a list of connections
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* for sake of display.
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*/
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GuacamoleRootUI.Connection = function(id, protocol_name) {
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function element(tagname, classname) {
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var new_element = document.createElement(tagname);
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new_element.className = classname;
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return new_element;
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}
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// Create connection display elements
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var connection = element("div", "connection");
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var caption = element("div", "caption");
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var protocol = element("div", "protocol");
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var name = element("span", "name");
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var protocol_icon = element("div", "icon " + protocol_name);
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var thumbnail = element("div", "thumbnail");
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// Get URL
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var url = "client.xhtml?id=" + encodeURIComponent(id);
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// Create link to client
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connection.onclick = function() {
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// Attempt to focus existing window
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var current = window.open(null, id);
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// If window did not already exist, set up as
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// Guacamole client
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if (!current.GuacamoleUI)
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window.open(url, id);
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};
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// Add icon
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protocol.appendChild(protocol_icon);
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// Set name
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name.textContent = id;
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// Assemble caption
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caption.appendChild(protocol);
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caption.appendChild(name);
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// Assemble connection icon
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connection.appendChild(thumbnail);
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connection.appendChild(caption);
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// Add screenshot if available
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var thumbnail_url = GuacamoleRootUI.Thumbnails.getURL(id);
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if (thumbnail_url) {
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// Create thumbnail element
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var img = document.createElement("img");
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img.src = thumbnail_url;
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thumbnail.appendChild(img);
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}
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/**
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* Returns the DOM element representing this connection.
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*/
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this.getElement = function() {
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return connection;
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};
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/**
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* Returns whether this connection has an associated thumbnail.
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*/
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this.hasThumbnail = function() {
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return thumbnail_url && true;
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};
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};
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/**
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* Resets the interface such that the login UI is displayed if
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* the user is not authenticated (or authentication fails) and
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* the connection list UI (or the client for the only available
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* connection, if there is only one) is displayed if the user is
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* authenticated.
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*/
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GuacamoleRootUI.reset = function() {
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// Get parameters from query string
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var parameters = window.location.search.substring(1);
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// Read configs
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var configs;
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try {
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configs = getConfigList(parameters);
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}
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catch (e) {
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// Show login UI if unable to get configs
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GuacamoleRootUI.views.login.style.display = "";
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GuacamoleRootUI.views.connections.style.display = "none";
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return;
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}
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// Add connection icons
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for (var i=0; i<configs.length; i++) {
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// Create connection element
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var connection = new GuacamoleRootUI.Connection(
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configs[i].id, configs[i].protocol);
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// If screenshot presennt, add to recent connections
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if (connection.hasThumbnail()) {
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// Add connection to recent list
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GuacamoleRootUI.sections.recent_connections.appendChild(
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connection.getElement());
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// Hide "No recent connections" message
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GuacamoleRootUI.messages.no_recent_connections.style.display =
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"none";
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}
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// Otherwise, add conection to other connection list
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else
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GuacamoleRootUI.sections.other_connections.appendChild(
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connection.getElement());
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}
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// If configs could be retrieved, display list
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GuacamoleRootUI.views.login.style.display = "none";
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GuacamoleRootUI.views.connections.style.display = "";
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};
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/*
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* Update session state when auto-fit checkbox is changed
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*/
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GuacamoleRootUI.settings.auto_fit.onchange =
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GuacamoleRootUI.settings.auto_fit.onclick = function() {
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GuacamoleRootUI.session_state.setProperty(
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"auto-fit", GuacamoleRootUI.settings.auto_fit.checked);
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};
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/*
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* Update session state when disable-sound checkbox is changed
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*/
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GuacamoleRootUI.settings.disable_sound.onchange =
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GuacamoleRootUI.settings.disable_sound.onclick = function() {
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GuacamoleRootUI.session_state.setProperty(
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"disable-sound", GuacamoleRootUI.settings.disable_sound.checked);
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};
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/*
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* Update clipboard contents when changed
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*/
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GuacamoleRootUI.fields.clipboard.onchange = function() {
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GuacamoleRootUI.session_state.setProperty(
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"clipboard", GuacamoleRootUI.fields.clipboard.value);
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};
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/*
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* Update element states when session state changes
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*/
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GuacamoleRootUI.session_state.onchange =
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function(old_state, new_state, name) {
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// Clipboard
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if (name == "clipboard")
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GuacamoleRootUI.fields.clipboard.value = new_state[name];
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// Auto-fit display
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else if (name == "auto-fit")
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GuacamoleRootUI.fields.auto_fit.checked = new_state[name];
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// Disable Sound
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else if (name == "disable-sound")
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GuacamoleRootUI.fields.disable_sound.checked = new_state[name];
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};
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/*
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* Initialize clipboard with current data
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*/
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if (GuacamoleRootUI.session_state.getProperty("clipboard"))
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GuacamoleRootUI.fields.clipboard.value =
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GuacamoleRootUI.session_state.getProperty("clipboard");
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/*
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* Default to true if auto-fit not specified
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*/
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if (GuacamoleRootUI.session_state.getProperty("auto-fit") === undefined)
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GuacamoleRootUI.session_state.setProperty("auto-fit", true);
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/*
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* Initialize auto-fit setting in UI
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*/
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GuacamoleRootUI.settings.auto_fit.checked =
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GuacamoleRootUI.session_state.getProperty("auto-fit");
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/*
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* Initialize disable-sound setting in UI
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*/
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GuacamoleRootUI.settings.disable_sound.checked =
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GuacamoleRootUI.session_state.getProperty("disable-sound");
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/*
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* Set handler for logout
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*/
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GuacamoleRootUI.buttons.logout.onclick = function() {
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window.location.href = "logout";
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};
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/*
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* Set handler for login
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*/
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GuacamoleRootUI.sections.login_form.onsubmit = function() {
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try {
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// Attempt login
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GuacamoleRootUI.login(
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GuacamoleRootUI.fields.username.value,
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GuacamoleRootUI.fields.password.value
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);
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// Ensure username/password fields are blurred after login attempt
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GuacamoleRootUI.fields.username.blur();
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GuacamoleRootUI.fields.password.blur();
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// Reset UI
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GuacamoleRootUI.reset();
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}
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catch (e) {
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// Display error, reset and refocus password field
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GuacamoleRootUI.messages.login_error.textContent = e.message;
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// Reset and recofus password field
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GuacamoleRootUI.fields.password.value = "";
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GuacamoleRootUI.fields.password.focus();
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}
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// Always cancel submit
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return false;
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};
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/*
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* Turn off autocorrect and autocapitalization on usename
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*/
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GuacamoleRootUI.fields.username.setAttribute("autocorrect", "off");
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GuacamoleRootUI.fields.username.setAttribute("autocapitalize", "off");
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/*
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* Initialize UI
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*/
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GuacamoleRootUI.reset();
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