Cancel button should not appear when image post is complete 100%

What steps will reproduce the problem?
1. Send a direct message or a tweet with an image. 
2. Wait for image to process and upload, but do not press send to process
the tweet. 
3. When images is uploaded press send and then cancel before tweet post
response is receive. 

What is the expected output? What do you see instead?

In case when upload process is not complete Cancel button makes sense
because at that time there is something to cancel. Once upload of an image
is complete there is nothing to cancel when user clicks on Cancel button
after sending the tweet. We should remove the cancel button in that case. 
http://yfrog.com/9f34129059j

4. Press send again: (if user does not know that his tweet is already
posted) Application does not quit after successfully processing a direct
message and continues to try to post http://yfrog.com/9f34129059j

What version of the product are you using? On what operating system?

v2.0

Please provide any additional information below.

Original issue reported on code.google.com by disot...@gmail.com on 1 Jun 2010 at 7:18

brafik77 / tweetero

Cancel button should not appear when image post is complete 100% #130