feat(dropdownToggle): Support hover

[jusx]

Needed this for a project. Simple implementation for hover support.

[ajoslin]

Hi @jusx,

Thanks for the PR! you wanted to see something, so you just did it :-)

We're proposing a refactor for dropdown-toggle to make it easier to hookup hover or any event - see #284.

But until the refactor is done, this does work, and I think would be fine to merge. What do you think @angular-ui/bootstrap ?

[jusx]

Hi @ajoslin,

A merge would be awesome! I'll look into the refactor after my tight deadlines. Cheers.

[kencaron]

Using this as a custom directive in my own project until the merge. Works great.

[mvhecke]

I ran tests in the following browsers all on Ubuntu 13.04 accept IE that is on a Win7:

• Chrome 30.0 - Ok
• Firefox 24 - Ok
• IE9 - Ok
• IE10 - Ok

[mvhecke]

@pkozlowski-opensource Pull request passes all tests

[pkozlowski-opensource]

@jusx I see what you are trying to do but the implementation is very specific to this one particular event (mouseover). I think that we should get it more generic - what if someone wants to open dropdown on focus? We should either use the same logic as in tooltips/popovers or - event better - create an extension point in this directive (in a form of a controller) so other people can plug into the existing infrastructure.

Closing this one for now as I think that the proposed implementation, while does what it is supposed to do, is too specific.