ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Programming HTML and JavaScript in AIR
var libraryObject = new window.runtime.utilities.LibraryClass();
Note: To compile an ActionScript SWF library for use as part of an HTML page in AIR, use the acompc compiler. The
acompc utility is part of the Flex SDK and is described in the Flex SDK documentation.
Accessing the HTML DOM and JavaScript objects from an imported
ActionScript file
Adobe AIR 1.0 and later
To access objects in an HTML page from ActionScript in a SWF file imported into the page using the tag,
pass a reference to a JavaScript object, such as window or document, to a function defined in the ActionScript code.
Use the reference within the function to access the JavaScript object (or other objects accessible through the passed-in
reference).
For example, consider the following HTML page:
num = 254;
function getStatus() {
return "OK.";
}
function runASFunction(window){
var obj = new runtime.ASClass();
obj.accessDOM(window);
}
Body text.
This simple HTML page has a JavaScript variable named num and a JavaScript function named getStatus(). Both of
these are properties of the window object of the page. Also, the window.document object includes a named P element
(with the ID p1).
The page loads an ActionScript file, “ASLibrary.swf,” that contains a class, ASClass. ASClass defines a function named
accessDOM() that simply traces the values of these JavaScript objects. The accessDOM() method takes the JavaScript
Window object as an argument. Using this Window reference, it can access other objects in the page including
variables, functions, and DOM elements as illustrated in the following definition:
public class ASClass{
public function accessDOM(window:*):void {
trace(window.num); // 254
trace(window.document.getElementById("p1").innerHTML); // Body text..
trace(window.getStatus()); // OK.
}
}
You can both get and set properties of the HTML page from an imported ActionScript class. For example, the
following function sets the contents of the p1 element on the page and it sets the value of the foo JavaScript variable
on the page:
Last updated 6/6/2012
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