@qooxdoo/framework
Version:
The JS Framework for Coders
55 lines (42 loc) • 1.35 kB
JavaScript
/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2012 1&1 Internet AG, Germany, http://www.1und1.de
License:
MIT: https://opensource.org/licenses/MIT
See the LICENSE file in the project's top-level directory for details.
Authors:
* Martin Wittemann (wittemann)
************************************************************************ */
/**
* @tag noPlayground
*/
qx.Class.define("qxl.demobrowser.demo.bom.PageVisibility",
{
extend : qx.application.Native,
members :
{
main : function()
{
this.base(arguments);
var page = new qx.bom.PageVisibility();
var log = this.log;
page.on("change", function() {
log("----------- visibility change event -----------");
});
// poll for the states
setInterval(function() {
var hidden = page.isHidden();
log(
+(new Date()) + " --- " +
"hidden: <span style='color:" + (hidden ? "red" : "green") + ";'>" + hidden + "</span> | " +
"state:" + page.getVisibilityState());
}, 1000);
},
log : function(txt) {
var log = document.getElementById("log");
log.innerHTML = txt + "<br>" + document.getElementById("log").innerHTML;
}
}
});