Add option to avoid injection menu in document body

[FMRb]

No description provided.

[coveralls]

Coverage decreased (-0.2%) to 79.53% when pulling efc0d06 on FalconSocial:mentio-menu-not-body into 4cefa13 on jeff-collins:master.

[FMRb]

I have found an issue on our website regarding the mentioMenu directive. It assumes that the element has to be injected on the body, however, this injection provokes a misbehaviour of the mentioMenu with the scrolling of the page, since the scroll event is not focused on the body but in another container.
This PR tries to modify the injection and recalculate the position base on the container where the mentioMenu is invoked.
I have closed this PR, since this is a hack to make it work on our website but it doesn't cover all the cases.

[jeff-collins]

thanks for taking a look at this, happy to take a look. can you give me a small snippet of the kind of page that is causing this behavior with ment.io?

[FMRb]

Hi Jeff,
I have created a Plunker with a small example of what happens in our website.
http://plnkr.co/edit/gcLd964czcETfpQbJryy?p=preview

Opening this snippet and using the scrolling on the area where the contenteditable container is located will make the mentioMenu move respect to the body instead of the contenteditable container itself. My fix tries to avoid this issue injecting the mentionMenu on the container where the contenteditable is positioned.

I hope this helps to clarify the issue.

[jeff-collins]

perfect, thanks. i think one possible fix might be to retrigger the menu placement - which is what happens in other cases. i'll take a look.

[becomingbabyman]

+1

[kkulikowski]

Hello. @jeff-collins, is there any chance to merge the solution? I wounder should i wait or just implement it locally.
Regards!