ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Client system environment
private static function getBrowserObjects():Array
{
var itemArr:Array = new Array();
var itemVars:URLVariables;
if (ExternalInterface.available)
{
try
{
var tempStr:String = ExternalInterface.call("JS_getBrowserObjects");
itemVars = new URLVariables(tempStr);
for (var i:String in itemVars)
{
itemArr.push({name:i, value:itemVars[i]});
}
}
catch (error:SecurityError)
{
// ignore
}
}
return itemArr;
}
If the external API is available in the current user environment, the Flash runtime calls the JavaScript
JS_getBrowserObjects() method, which loops over the browser’s navigator object and returns a string of URLencoded
values to ActionScript. This string is then converted into a URLVariables object (itemVars) and added to the
itemArr array, which is returned to the calling script.
Communicating with JavaScript
Flash Player 9 and later
The final piece in building the CapabilitiesExplorer application is writing the necessary JavaScript to loop over each of
the items in the browser’s navigator object and append a name-value pair to a temporary array. The code for the
JavaScript JS_getBrowserObjects() method in the container.html file is as follows:
function JS_getBrowserObjects()
{
// Create an array to hold each of the browser's items.
var tempArr = new Array();
// Loop over each item in the browser's navigator object.
for (var name in navigator)
{
var value = navigator[name];
// If the current value is a string or Boolean object, add it to the
// array, otherwise ignore the item.
switch (typeof(value))
{
case "string":
case "boolean":
// Create a temporary string which will be added to the array.
// Make sure that we URL-encode the values using JavaScript's
Last updated 6/6/2012
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