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jeffery wright
jeffery wright
Inspiring
February 17, 2015
Question

Part 2: Load Image from URL into Dynamic Text Box - goodinson.snapshot

  • February 17, 2015
  • 1 reply
  • 539 views

I have a flash file where a user can add an image url into a Dynamic Text Box (image_in.text) and the image will now appear in the flash file.

I am using goodinson.snapshot as featured in this article: Saving Flash graphics as image files at runtime | Adobe Developer Connection

This application works fine (graphic is generated and downloaded) only if a user chooses an included graphic in the flash file (loaded externally) or if I declare a url inside the flash file for the load image variable (var image_url:String = "http://website.com/image.jpg";).

However, if a user enters an image url into the Dynamic Text Box (image_in.text), which the flash does successfully load, the download image function no longer works!

Is this a security bug in flash itself? Or am I missing a code tweak somewhere? 

If an FLA that does this already exists somewhere, let me know.

Thanks in advance for your help!

This topic has been closed for replies.

1 reply

kglad
Community Expert
kgladCommunity Expert
Community Expert
February 17, 2015

RE:  bitmapdata draw method


There are also restrictions on using a loaded bitmap image as the source. A call to the draw() method is successful if the loaded image comes from the same domain as the caller. Also, a cross-domain policy file on the image's server can grant permission to the domain of the SWF content calling the draw() method. In this case, you must set the checkPolicyFile property of a LoaderContext object, and use this object as the context parameter when calling the load() method of the Loader object used to load the image. These restrictions do not apply to AIR content in the application security sandbox.


or use server-side script to load the image so you can circumvent the cross-domain issue.

jeffery wright
jeffery wrightAuthor
Inspiring
February 23, 2015

Thanks for your response!

The image urls are on the same domain as where the swf is.

I don't understand how declaring the variable as the url is different from declaring it from the value of a dynamic text box... it's the same url, but only one method works, shouldn't they both work?

var image_url:String = "http://website.com/image.jpg"; works..

var image_url:String = image_in.text; does not work, even though the value for image_in.text is identical to the one in the example above.

Since they are all on the same domain, this should work, right?

Thanks again.

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