EDOBE XDOM TAKE 6 IR - PRODUCTSHEET Especificações descarregar pdf (Página 176)

CHAPTER 5: Interapplication Communication with Scripts Communicating through messages 176

}

Example: Setting up a sender to receive multiple responses

This example sends a message of the type

iterator, to be handled by the onReceive handler in the

previous example, and processes the responses received from that target.

The sending application creates a message whose script (contained in the

body string) iterates through all

files in a specific folder (represented by an Adobe Bridge

Thumbnail object), using the iterator variable i.

For each file in the folder, it returns file size data. For each contained folder, it returns -1. The last executed

line in the script is the final result value for the message.

The onResult

method of the message object receives each intermediate result, stores it into an array,

resArr, and processes it immediately using a script-defined function processInterResult.

// Code for send message and handling response

// in the sending application (any message-enabled application)

var idx = 0;

var resArr = new Array;

bt = new BridgeTalk;

bt.target = "bridge";

bt.type = "iterator";

bt.body = "

var fld = new Thumbnail(Folder(’C/Junk’));

if (i == (fld.children.length - 1))

done = true; //no more files, end loop

tn = fld.children[i];

if (tn.spec.constructor.name == ’File’)

md = tn.core.immediate.size;

else md = -1;

// store intermediate results

bt.onResult = function(rObj) {

resArr[idx] = rObj.body;

processInterResult(resArr[idx]);

idx++;};

bt.onError = function(eObj) {

bt.error = eObj.body };

bt.send();

Passing values between applications

The BridgeTalk.onReceive static callback function can return values of any type. The messaging

framework, however, packages the response into a response message, and passes any returned values in

the message

body, first converting the result to a UTF-8-encoded string.

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