mirror of
https://github.com/gyurix1968/guacamole-client.git
synced 2025-09-07 21:51:23 +00:00
111 lines
3.2 KiB
JavaScript
111 lines
3.2 KiB
JavaScript
|
|
/*
|
|
* Guacamole - Clientless Remote Desktop
|
|
* Copyright (C) 2010 Michael Jumper
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
/**
|
|
* Maintains state across multiple Guacamole pages via HTML5 Web Storage.
|
|
* @constructor
|
|
*/
|
|
function GuacamoleSessionState() {
|
|
|
|
/**
|
|
* Reference to this GuacamoleSessionState.
|
|
* @private
|
|
*/
|
|
var guac_state = this;
|
|
|
|
/**
|
|
* The last read state object.
|
|
* @private
|
|
*/
|
|
var state = localStorage.getItem("GUACAMOLE_STATE") || {};
|
|
|
|
/**
|
|
* Reloads the internal state, sending onchange events for all changed,
|
|
* deleted, or new properties.
|
|
*/
|
|
this.reload = function() {
|
|
|
|
// Pull current state
|
|
var new_state = JSON.parse(localStorage.getItem("GUACAMOLE_STATE") || "{}");
|
|
|
|
// Assign new state
|
|
var old_state = state;
|
|
state = new_state;
|
|
|
|
// Check if any values are different
|
|
for (var name in new_state) {
|
|
|
|
// If value changed, call handler
|
|
var old = old_state[name];
|
|
if (old != new_state[name]) {
|
|
|
|
// Call change handler
|
|
if (guac_state.onchange)
|
|
guac_state.onchange(state, new_state, name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Sets the given property to the given value.
|
|
*
|
|
* @param {String} name The name of the property to change.
|
|
* @param value An arbitrary value.
|
|
*/
|
|
this.setProperty = function(name, value) {
|
|
state[name] = value;
|
|
localStorage.setItem("GUACAMOLE_STATE", JSON.stringify(state));
|
|
};
|
|
|
|
/**
|
|
* Returns the value stored under the property having the given name.
|
|
*
|
|
* @param {String} name The name of the property to read.
|
|
* @return The value of the given property.
|
|
*/
|
|
this.getProperty = function(name) {
|
|
return state[name];
|
|
};
|
|
|
|
/**
|
|
* Event which is fired whenever a property value is changed externally.
|
|
*
|
|
* @event
|
|
* @param old_state An object whose properties' values are the old values
|
|
* of this GuacamoleSessionState.
|
|
* @param new_state An object whose properties' values are the new values
|
|
* of this GuacamoleSessionState.
|
|
* @param {String} name The name of the property that is being changed.
|
|
*/
|
|
this.onchange = null;
|
|
|
|
// Reload properties every second
|
|
window.setInterval(guac_state.reload, 1000);
|
|
|
|
// Reload properties when focus is gained
|
|
window.addEventListener("focus", guac_state.reload);
|
|
|
|
// Initial load
|
|
guac_state.reload();
|
|
|
|
}
|