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Initial commit
This commit is contained in:
Khanh Ngo
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# jQuery Idle Timeout
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See the original [Mint.com example](http://www.erichynds.com/examples/jquery-idle-timeout/example-mint.htm), or a [demo](http://www.erichynds.com/examples/jquery-idle-timeout/example-dialog.htm) using jQuery UI's dialog widget.
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This script allows you to detect when a user becomes idle (detection provided by Paul Irish's idletimer plugin) and notify the user his/her session
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is about to expire. Similar to the technique seen on Mint.com. Polling requests are automatically sent to the server at a configurable
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interval, maintaining the users session while s/he is using your application for long periods of time.
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/*
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* jQuery Idle Timeout 1.2
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* Copyright (c) 2011 Eric Hynds
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*
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* http://www.erichynds.com/jquery/a-new-and-improved-jquery-idle-timeout-plugin/
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*
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* Depends:
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* - jQuery 1.4.2+
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* - jQuery Idle Timer (by Paul Irish, http://paulirish.com/2009/jquery-idletimer-plugin/)
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*
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*
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*/
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(function($, win){
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var idleTimeout = {
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init: function( element, resume, options ){
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var self = this, elem;
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this.warning = elem = $(element);
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this.resume = $(resume);
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this.options = options;
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this.countdownOpen = false;
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this.failedRequests = options.failedRequests;
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this._startTimer();
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this.title = document.title;
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// expose obj to data cache so peeps can call internal methods
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$.data( elem[0], 'idletimeout', this );
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// start the idle timer
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$.idleTimer(options.idleAfter * 1000);
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// once the user becomes idle
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$(document).bind("idle.idleTimer", function(){
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// if the user is idle and a countdown isn't already running
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if( $.data(document, 'idleTimer') === 'idle' && !self.countdownOpen ){
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self._stopTimer();
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self.countdownOpen = true;
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self._idle();
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}
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});
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// bind continue link
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this.resume.bind("click", function(e){
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e.preventDefault();
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win.clearInterval(self.countdown); // stop the countdown
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self.countdownOpen = false; // stop countdown
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self._startTimer(); // start up the timer again
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self._keepAlive( false ); // ping server
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options.onResume.call( self.warning ); // call the resume callback
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});
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},
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_idle: function(){
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var self = this,
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options = this.options,
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warning = this.warning[0],
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counter = options.warningLength;
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// fire the onIdle function
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options.onIdle.call(warning);
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// set inital value in the countdown placeholder
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options.onCountdown.call(warning, counter);
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// create a timer that runs every second
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this.countdown = win.setInterval(function(){
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if(--counter === 0){
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window.clearInterval(self.countdown);
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options.onTimeout.call(warning);
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} else {
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options.onCountdown.call(warning, counter);
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document.title = options.titleMessage.replace('%s', counter) + self.title;
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}
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}, 1000);
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},
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_startTimer: function(){
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var self = this;
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this.timer = win.setTimeout(function(){
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self._keepAlive();
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}, this.options.pollingInterval * 1000);
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},
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_stopTimer: function(){
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// reset the failed requests counter
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this.failedRequests = this.options.failedRequests;
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win.clearTimeout(this.timer);
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},
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_keepAlive: function( recurse ){
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var self = this,
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options = this.options;
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//Reset the title to what it was.
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document.title = self.title;
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// assume a startTimer/keepAlive loop unless told otherwise
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if( typeof recurse === "undefined" ){
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recurse = true;
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}
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// if too many requests failed, abort
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if( !this.failedRequests ){
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this._stopTimer();
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options.onAbort.call( this.warning[0] );
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return;
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}
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$.ajax({
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timeout: options.AJAXTimeout,
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url: options.keepAliveURL,
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error: function(){
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self.failedRequests--;
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},
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success: function(response){
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if($.trim(response) !== options.serverResponseEquals){
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self.failedRequests--;
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}
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},
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complete: function(){
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if( recurse ){
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self._startTimer();
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}
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}
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});
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}
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};
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// expose
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$.idleTimeout = function(element, resume, options){
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idleTimeout.init( element, resume, $.extend($.idleTimeout.options, options) );
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return this;
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};
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// options
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$.idleTimeout.options = {
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// number of seconds after user is idle to show the warning
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warningLength: 30,
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// url to call to keep the session alive while the user is active
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keepAliveURL: "",
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// the response from keepAliveURL must equal this text:
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serverResponseEquals: "OK",
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// user is considered idle after this many seconds. 10 minutes default
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idleAfter: 600,
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// a polling request will be sent to the server every X seconds
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pollingInterval: 60,
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// number of failed polling requests until we abort this script
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failedRequests: 5,
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// the $.ajax timeout in MILLISECONDS!
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AJAXTimeout: 250,
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// %s will be replaced by the counter value
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titleMessage: 'Warning: %s seconds until log out | ',
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/*
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Callbacks
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"this" refers to the element found by the first selector passed to $.idleTimeout.
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*/
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// callback to fire when the session times out
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onTimeout: $.noop,
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// fires when the user becomes idle
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onIdle: $.noop,
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// fires during each second of warningLength
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onCountdown: $.noop,
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// fires when the user resumes the session
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onResume: $.noop,
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// callback to fire when the script is aborted due to too many failed requests
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onAbort: $.noop
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};
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})(jQuery, window);
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@ -0,0 +1,148 @@
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/*
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* jQuery idleTimer plugin
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* version 0.8.092209
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* by Paul Irish.
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* http://github.com/paulirish/yui-misc/tree/
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* MIT license
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* adapted from YUI idle timer by nzakas:
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* http://github.com/nzakas/yui-misc/
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* Copyright (c) 2009 Nicholas C. Zakas
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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(function($){
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$.idleTimer = function f(newTimeout){
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//$.idleTimer.tId = -1 //timeout ID
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var idle = false, //indicates if the user is idle
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enabled = true, //indicates if the idle timer is enabled
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timeout = 30000, //the amount of time (ms) before the user is considered idle
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events = 'mousemove keydown DOMMouseScroll mousewheel mousedown', // activity is one of these events
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//f.olddate = undefined, // olddate used for getElapsedTime. stored on the function
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/* (intentionally not documented)
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* Toggles the idle state and fires an appropriate event.
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* @return {void}
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*/
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toggleIdleState = function(){
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//toggle the state
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idle = !idle;
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// reset timeout counter
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f.olddate = +new Date;
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//fire appropriate event
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$(document).trigger( $.data(document,'idleTimer', idle ? "idle" : "active" ) + '.idleTimer');
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},
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/**
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* Stops the idle timer. This removes appropriate event handlers
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* and cancels any pending timeouts.
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* @return {void}
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* @method stop
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* @static
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*/
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stop = function(){
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//set to disabled
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enabled = false;
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//clear any pending timeouts
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clearTimeout($.idleTimer.tId);
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//detach the event handlers
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$(document).unbind('.idleTimer');
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},
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/* (intentionally not documented)
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* Handles a user event indicating that the user isn't idle.
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* @param {Event} event A DOM2-normalized event object.
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* @return {void}
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*/
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handleUserEvent = function(){
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//clear any existing timeout
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clearTimeout($.idleTimer.tId);
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//if the idle timer is enabled
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if (enabled){
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//if it's idle, that means the user is no longer idle
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if (idle){
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toggleIdleState();
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}
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//set a new timeout
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$.idleTimer.tId = setTimeout(toggleIdleState, timeout);
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}
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};
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/**
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* Starts the idle timer. This adds appropriate event handlers
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* and starts the first timeout.
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* @param {int} newTimeout (Optional) A new value for the timeout period in ms.
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* @return {void}
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* @method $.idleTimer
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* @static
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*/
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f.olddate = f.olddate || +new Date;
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//assign a new timeout if necessary
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if (typeof newTimeout == "number"){
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timeout = newTimeout;
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} else if (newTimeout === 'destroy') {
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stop();
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return this;
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} else if (newTimeout === 'getElapsedTime'){
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return (+new Date) - f.olddate;
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}
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//assign appropriate event handlers
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$(document).bind($.trim((events+' ').split(' ').join('.idleTimer ')),handleUserEvent);
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//set a timeout to toggle state
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$.idleTimer.tId = setTimeout(toggleIdleState, timeout);
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// assume the user is active for the first x seconds.
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$.data(document,'idleTimer',"active");
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}; // end of $.idleTimer()
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})(jQuery);
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