add ngPoster directive for VIDEO tag.

[mfo]

A teeny tiny commit adding support for poster's video attribute (http://dev.w3.org/html5/spec-author-view/video.html#attr-video-poster).
<video ng-poster="{{super-poster-url}}"></video>

Thanks for this awesome front end framework :-)

[mary-poppins]

Thanks for the PR!

• Contributor signed CLA now or in the past
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• PR's commit messages follow the commit message format

If you need to make changes to your pull request, you can update the commit with git commit --amend.
Then, update the pull request with git push -f.

Thanks again for your help!

[petebacondarwin]

LGTM - @mfo can you make sure you sign the CLA.

Adding documentation and unit tests was very helpful. Be aware that it would be even better if the commit message followed the rules.

[mfo]

I approved the CLA (Martin Fourcade) & updated the commit message (sorry, I missed this part). I hope it's ok now.

Best

[pavelnikolov]

This directive is much appreciated! I just ran into problem with poster="{{...}}" and googled for "ngPoster" directive to find this PR.

[btford]

You can also just use ng-attr-poster="{{foo}}".

[mfo]

I was not aware of this directive (I just searched for it in the reference api but it's missing). I'll read the code of boolean attr later, but :

• If I can safely use ng-attr-poster instead of ng-poster, my pull request would be useless.
• I'm wondering why there are ngSrc, ngSrcset, ngHref instead of ng-attr-src, ng-attr-srcset, ng-attr-href? (same feature, different naming?)
• ng-attr-* deserves a section in the reference api.

Let me know if you wish a better pull request.

[pavelnikolov]

Thnaks a lot for the ng-attr-* - I just learned something new!

[buunguyen]

I believe ngSrc, ngSrcset, ngHref are "legacy" directives, existing before ng-attr-*. I really think they should be make deprecated in favor of the generic ng-attr-*.

[samuelcotterall]

I did not know about ng-attr-*. Very helpful, thank you.

[btford]

@buunguyen – that wouldn't make sense. ngSrc etc need special behavior.

I'm going to close this.