Communicate with a dynamic function in javascript on a webpage.

General Discussion Other

stripsody

Communicate with a dynamic function in javascript on a webpage.

in General Discussion • Other • 11 months ago

Hy,
I refine my question with more accurately.
I'm trying to get the GPS location of my machine in processing passing through the google API on an html page.
In this page, there is a javascript function that runs when the page is loading.
But these data are dynamic so I can't recover them using a library like pro HTML.

So in the example below, processing returns me only "<div id="#latitude"></div>" without the content loading dynamically.

<head>
// ... html spec
<script type="text/javascript">
var previousPosition = null;
function initialize() {
// google maps api
// ...
}
if (navigator.geolocation)
// ...
function successCallback(position){
map.panTo(new google.maps.LatLng(position.coords.latitude, position.coords.longitude));
// ...
});
var coorLatitude = position.coords.latitude;
var coorLongitude = position.coords.longitude;
var stringLatitude = coorLatitude.toString();
var stringLongitude = coorLongitude.toString();
document.getElementById('latitude').innerHTML = stringLatitude;
document.getElementById('longitude').innerHTML = stringLongitude;
};
</script>
</head>
<body onload="initialize()">
<div id="#latitude"></div>
<div id="#longitude"></div>
</body>

Replies(3)

PhiLho

Re: Communicate with a dynamic function in javascript on a webpage.

11 months ago

There is no simple solution.
You can the Rhino JavaScript engine built in Java to try and run JS (I don't think I would try that...), or you can use something like PhantomJS to simulate the running of the page in a browser (actually, not simulation at all, just a way to run it headless and get the result), or as suggested in the other topic, try and see if the data can be obtained in Json form or something similar.

stripsody

Re: Communicate with a dynamic function in javascript on a webpage.

11 months ago

Thanks for answerering,

I don't understand how a simulation of the running of a page will help processing to get the data that he doesn't get when the js run for real ?
The question will propably seem you silly

, but I'm totally overpass by all this technologies, I just know how to make little programme in .js or processing.

PhiLho

Re: Communicate with a dynamic function in javascript on a webpage.

11 months ago

Well, theoretically, you can get the .html page, and feed the tool with it. The tool will then load the related .js files, and it will run this JS (onload) to render the full page, as generated by the JavaScript. Then you can access the rendered Dom.
Again, a bit of overkill if you can access the same data directly...

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