setTimeout() emulation in GeoGebra Classic 5
- Author:
- Michael Borcherds
From version 5.0.545.0 you can try putting the following code in the Global JavaScript to enable setTimeout() and related functions. Then the same code should run in Classic 5 and online.
This isn't supported and the behaviour may be different between versions (JavaScript is single-threaded online but Classic 5 is not) but hopefully it's useful to make the workflow a bit easier.
/**
* Timer for Rhino, original functions from http://stackoverflow.com/questions/2261705/how-to-run-a-javascript-function-asynchronously-without-using-settimeout#answer-5767884
* written by Weston C.
* Packaged by Ryan Blunden
*/
var root = this; // global context
if (typeof JavaAdapter != "undefined") {
root.timer = new java.util.Timer();
root.counter = 1;
root.ids = {};
root.setTimeout = function(fn, delay) {
var id = counter++;
ids[id] = new JavaAdapter(java.util.TimerTask, {
run: fn
});
timer.schedule(ids[id], delay);
return id;
}
root.clearTimeout = function(id) {
ids[id].cancel();
timer.purge();
delete ids[id];
}
root.setInterval = function(fn, delay) {
var id = counter++;
ids[id] = new JavaAdapter(java.util.TimerTask, {
run: fn
});
timer.schedule(ids[id], delay, delay);
return id;
}
}