Fix editing tags

[nikonikolov]

Hi, I really like this project and would love to see more frequent updates.

There is a bug related to the tags which is extremely annoying and kills productivity. When I edit the tags for a paper, the drop down menu with tag suggestions seems to be constantly on (except if the paper does not have all available tags). Furthermore, a tag from this drop-down menu is always selected and pressing Enter actually inserts the selected tag from the drop-down menu instead of saving the currently input tags. I am willing to help fix this, but it will be great if you give me some directions where to start (I know JS, but no PHP). Thanks!

[MicaelCarvalho]

With 40a5699 I prevented autocompletion when no match is found. However, this issue goes deeper than a simple fix. The behavior of the enter key (13) seems to be coded inside one of the frameworks we use, and I couldn't quickly identify where.

I can give you some directions if you plan on attacking this:

• The autocompletion is dealt with here:

  DjLu/js/djlu.js

  Line 276 in 40a5699

  el.attr("autocomplete", "off").typeahead("destroy").typeahead({

• The keydown and keypress events cannot block the #13 key, unless some clever trick is adopted to prevent the event from triggering the dropdown events;
• This whole thing is related to bootstrap-3-typeahead (https://github.com/bassjobsen/Bootstrap-3-Typeahead). There seems to be no mechanism to disable the return key — the autoSelect option could be a dirty fix, but it would also get in the way of normal usage, therefore it would not be fit for an official commit.