Add proper paste support

[erikdubbelboer]

Add paste="expression" to allow custom paste handling.

Allow pasting in tagging mode when the tagging function is not defined.

In IE use window.clipboardData so jQuery is not required.

Fixes #910, #704, #789, #848, #429

[logannc]

Is there a reason that ctrl.searchInput.value is not used instead of the paste buffer? If not, you might miss things that are half-typed, half-pasted.

edit: ... nevermind about ctrl.searchInput.value. But the point about only using the clipboard stands.

[erikdubbelboer]

@logannc you are correct, I changed it so that the current input is prepended to the pasted data before parsing.

[danielgrippi]

bump. can we get this merged?

[aaronroberson]

Published in v0.14.7 if you would like to confirm.

[Hypercubed]

This is a useful feature and should be be documented. I suggest the following added to the wiki:

option	description	value	default
paste	Accepts a string which is a scope function. The function will be passed the pasted text as a string.	string ($scope function)	undefined

Updated.

[Hypercubed]

Actually, looking again it appears the return value is ignored. I updated the suggested addition.

[user378230]

@Hypercubed you should be able to update the wiki yourself, your contribution would be welcome! 😃

[Hypercubed]

Sure, was going to do that first... but wanted to make sure I understood the API. My first assumption was not correct.