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CHAPTER 4: User-Interface Tools Automatic layout 86

You do not need to register the ExtendScript function in the ActionScript environment. Your ActionScript

script can simply call the external function using the

ExternalInterface.call() method:

var res = ExternalInterface.call("myJavaScriptFunction");

When the Flash Player executes the ExternalInterface call, ScriptUI looks for a function with the same

name as a method of the

FlashPlayer element, and invokes it with the specified arguments. In the

context of the function, the JavaScript

this object refers to the FlashPlayer object.

Calling ActionScript functions from a ScriptUI script

From the ExtendScript side, use the FlashPlayer method invokePlayerFunction() to call ActionScript

methods that have been defined within the Flash application:

result = flashElement.invokePlayerFunction ("ActionScript_function_name",

[arg1, ..., argN] );

You can use the optional arguments to pass data (of supported types) to the ActionScript method.

Before you can call any ActionScript function from your Adobe application script, your Flash application

must register that function with the

ExternalInterface object, as a callback from the Flash container. To

ExternalInterface.addCallback() method:

public static addCallback (methodName:String, instance:Object, method:Function);

This registers a function defined in your Adobe application script named getActionScriptArray():

ExternalInterface.addCallback("getActionScriptArray", this, getActionScriptArray);

Flash Examples

These examples in the Adobe ExtendScript SDK demonstrate how to use the Flash Player:

Automatic layout

When a script creates a window and its associated user-interface elements, it can explicitly control the size

and location of each element and of the container elements, or it can take advantage of the automatic

layout capability provided by ScriptUI. The automatic layout mechanism uses certain available information

about user-interface elements, along with a set of layout rules, to establish a visually pleasing layout of the

controls in a dialog, automatically determining the proper sizes for elements and containers.

Automatic layout is easier to program than explicit layout. It makes a script easier to modify and maintain,

and easier to localize for different languages. It also makes the script automatically adapt to the default

font and font size used by the host application for ScriptUI windows.

UsingFlashPlayer.jsx

Shows how to create a Flash Player, and use it to load a play back a

movie defined in an SWF file.

ActionScriptDemo.jsx

Shows how to communicate between the Adobe application scripting

environment and the ActionScript scripting environment of the Flash

Player.

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EDOBE XDOM TAKE 6 IR - PRODUCTSHEET Especificações Página 86