Add option to show all Typeahead items

[reefdog]

Currently, the menu of items doesn't appear until you start typing. Normally this is fine, but sometimes I'd like the user to see the sorts of items in the list before typing.

I propose adding an option which, if set to true, goes ahead and shows the menu (along with first items number of items) as soon as the Typeahead input is focused. This option would default false to match current behavior.

So in the State example, when the input was focused, the menu would open and show Alabama through Delaware (assuming items was left at default 8). This prompts the user for the sort of string we're expecting them to type.

One could argue "but if we pop open a list of items, they may think that's all the items that are offered" which could be negated by #2042.

[fat]

Tagging this as a feature request

[reedlaw]

A possibly related issue is that typeahead hides ajax results that should be shown if the search term is not an exact substring of the results. For example, typing "lax" using Google Places Autocomplete returns "L.A.X., Los Angeles, CA, United States" as the first result but this will not be shown because "lax" doesn't have dots after each letter. So if there was an option to always show 5 items regardless of exact match it might solve this problem.

[gsf]

Apologies, I should have left those refs out of the commit. The pull requests (one for master and one for 2.1.0-wip) add a test and functionality for a "showAll" option. When it's true the typeahead shows all items in the source, up to the number in the "items" option, on focus. As you can see in the commit, only 6 lines of code are affected.

Now I'm thinking "focusShow" (as suggested in #2474) might be a more descriptive name for the option.

[mdo]

Closing as a dupe of #2042.

[ptnplanet]

I've built an extension to bootstrap's typeahead plugin to provide the behavior you are looking for. Have a look here: https://github.com/ptnplanet/Bootstrap-Better-Typeahead