More Actions button should be disabled when none of the actions is available

[Ying Zuo]

Steps to reproduce:
1. Go to Instances panel
2. Click the More Actions button on top of the table

Note that none of the actions in the dropdown is available since no instance is selected. The More Actions dropdown should be disabled when all of the actions are disabled.

[Eddie Ramirez (ediardo)]

I am partially able to reproduce this bug.
1) The button is enabled when the browser is still resolving all HTTP requests.
2) The button is disabled when the browser has loaded the entire page (js, imgs, css, etc) (window.onload)

[Eddie Ramirez (ediardo)]

Well, the button itself is never disabled but its options are. If what you want to change here is that the "More actions" button should be disabled just as the "Delete Instances" button then yes :)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/442290

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/442290
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=c815285c1e780514fd2cc5e1b17298e6b717f6d9
Submitter: Jenkins
Branch: master

commit c815285c1e780514fd2cc5e1b17298e6b717f6d9
Author: yuki kasuya <email address hidden>
Date: Wed Nov 9 00:55:36 2016 +0900

    Change a behavior of more actions dropdown

    Disable more actions dropdown when no instances is selected.

    Change-Id: Ida09e51da746ef55768a2c0a75fb27e7b06e6a4c
    Closes-Bug: #1668718

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 12.0.0.0b1 development milestone.