hedgedoc/public/vendor/idle.js
2015-06-01 18:04:25 +08:00

160 lines
4.1 KiB
JavaScript
Executable file

(function() {
var Idle;
/** IE8/old browser support **/
if (!document.addEventListener) {
if (document.attachEvent) {
document.addEventListener = function(event, callback, useCapture) {
return document.attachEvent("on" + event, callback, useCapture);
};
} else {
document.addEventListener = function() {
return {};
};
}
}
if (!document.removeEventListener) {
if (document.detachEvent) {
document.removeEventListener = function(event, callback) {
return document.detachEvent("on" + event, callback);
};
} else {
document.removeEventListener = function() {
return {};
};
}
}
"use strict";
Idle = {};
Idle = (function() {
Idle.isAway = false;
Idle.awayTimeout = 3000;
Idle.awayTimestamp = 0;
Idle.awayTimer = null;
Idle.onAway = null;
Idle.onAwayBack = null;
Idle.onVisible = null;
Idle.onHidden = null;
function Idle(options) {
var activeMethod, activity;
if (options) {
this.awayTimeout = parseInt(options.awayTimeout, 10);
this.onAway = options.onAway;
this.onAwayBack = options.onAwayBack;
this.onVisible = options.onVisible;
this.onHidden = options.onHidden;
}
activity = this;
activeMethod = function() {
return activity.onActive();
};
window.onclick = activeMethod;
window.onmousemove = activeMethod;
window.onmouseenter = activeMethod;
window.onkeydown = activeMethod;
window.onscroll = activeMethod;
window.onmousewheel = activeMethod;
}
Idle.prototype.onActive = function() {
this.awayTimestamp = new Date().getTime() + this.awayTimeout;
if (this.isAway) {
this.isAway = false;
if (this.onAwayBack) {
this.onAwayBack();
}
this.start();
}
return true;
};
Idle.prototype.start = function() {
var activity;
if (!this.listener) {
this.listener = (function() {
return activity.handleVisibilityChange();
});
document.addEventListener("visibilitychange", this.listener, false);
document.addEventListener("webkitvisibilitychange", this.listener, false);
document.addEventListener("msvisibilitychange", this.listener, false);
}
this.awayTimestamp = new Date().getTime() + this.awayTimeout;
if (this.awayTimer !== null) {
clearTimeout(this.awayTimer);
}
activity = this;
this.awayTimer = setTimeout((function() {
return activity.checkAway();
}), this.awayTimeout + 100);
return this;
};
Idle.prototype.stop = function() {
if (this.awayTimer !== null) {
clearTimeout(this.awayTimer);
}
if (this.listener !== null) {
document.removeEventListener("visibilitychange", this.listener);
document.removeEventListener("webkitvisibilitychange", this.listener);
document.removeEventListener("msvisibilitychange", this.listener);
this.listener = null;
}
return this;
};
Idle.prototype.setAwayTimeout = function(ms) {
this.awayTimeout = parseInt(ms, 10);
return this;
};
Idle.prototype.checkAway = function() {
var activity, t;
t = new Date().getTime();
if (t < this.awayTimestamp) {
this.isAway = false;
activity = this;
this.awayTimer = setTimeout((function() {
return activity.checkAway();
}), this.awayTimestamp - t + 100);
return;
}
if (this.awayTimer !== null) {
clearTimeout(this.awayTimer);
}
this.isAway = true;
if (this.onAway) {
return this.onAway();
}
};
Idle.prototype.handleVisibilityChange = function() {
if (document.hidden || document.msHidden || document.webkitHidden) {
if (this.onHidden) {
return this.onHidden();
}
} else {
if (this.onVisible) {
return this.onVisible();
}
}
};
return Idle;
})();
window.Idle = Idle;
}).call(this);