Binary encoding

[JeremyRand]

It looks like this contains a copy of https://github.com/namecoin/electrum-nmc/pull/338 . Is that because there would be merge conflicts otherwise?

[JeremyRand]

I'd prefer not to commit compiled form files into Git; those files are already generated at build time, which is preferred by the Debian guys.

[robertmin1]

Alright! I'm not sure why it has a copy of #338. I will check this out

[robertmin1]

Fixed the two issues

[JeremyRand]

It looks like you're using bytes.fromhex etc. for messing with the encoding. We already have encoding/decoding functions in names.py that you can use for this, which will ensure consistency with Namecoin Core behavior.

[robertmin1]

Switched to the encoding/decoding functions in names.py

[JeremyRand]

This looks pretty good so far.

Initial feedback:

1. It might be useful to put the ASCII textbox and the hex textbox into tabs, so that the user only sees one at a time. You should be able to copy the tab GUI code from the Manage DNS dialog.
2. The initial value of the hex textbox in the Buy Names tab is empty; it should get automatically filled in when the page loads, based on the default ASCII value.
3. Some visual feedback if the user enters invalid hex strings (either non-hex characters or an odd number of hex characters) would be nice.

Keep it up! :)

[JeremyRand]

I tried typing hex that was invalid ASCII (e.g. ffffff) and the preview didn't update; I suspect that the preview is incorrectly retrieving its data from the ASCII textbox instead of the Hex textbox.

[robertmin1]

A helper function might be helpful to handle the state of buttons and labels?

def update_buttons_and_label(self, condition=None, button=None, label=None, error_message=None):
    if button is not None:
        button.setEnabled(condition)
    if label is not None:
        if error_message:
            label.setText(error_message)
        else:
            label.clear()

[JeremyRand]

Is the idea to reuse that helper function across the Buy Names page, the Configure Name page, etc.? If so, yeah I think that's reasonable.

[JeremyRand]

Typing a string that doesn't end in .bit to the Domain textbox seems to cause the string to be copied verbatim to the ASCII textbox instead of producing an error.

[JeremyRand]

As discussed, no further changes are needed, but can you squash the commits, and then remove WIP: from the PR title?

[JeremyRand]

ACK 32af8d858c5a350d859728385c2c816b2621084d