Cannot see confirmation message when working on longer pages

[Julie Pichon]

If you have a long list of e.g. Volumes and Snapshots and try to perform a "dangerous" action like Delete from the bottom of the page, the confirmation modal will appear outside of the visible screen at the top of the page, causing confusion for the user who suddenly gets "stuck". Attaching a screenshot as an example.

I think we should focus on the modal when it appears.

[Facundo Maldonado (facundo-n-maldonado)]

ok in chrome
occurs in Firefox
to be tested in other browsers

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/60567

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/61491

[Akihiro Motoki (amotoki)]

IMO it is worth backport to havana.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/60567
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=8950b90d1777e265f98379098cebef7517642efe
Submitter: Jenkins
Branch: master

commit 8950b90d1777e265f98379098cebef7517642efe
Author: Facundo Maldonado <email address hidden>
Date: Wed Dec 11 13:56:18 2013 -0300

    Change how scrollShift is calculated.

        In Firefox $('body').scrollTop returns 0, that's why the modal
        appear outside the visible screen. Added $('hmtl).scrollTop.

        var scrollShift = $('body').scrollTop() || $('html').scrollTop()

        Closes-Bug: 1251361

    Change-Id: Icf691eb140e091615a98f1fbd415428cd418ba9e

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/havana
Review: https://review.openstack.org/63380

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/63380
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=0aff703f9824cefd0c2fd8221bd2295e952699bb
Submitter: Jenkins
Branch: stable/havana

commit 0aff703f9824cefd0c2fd8221bd2295e952699bb
Author: Facundo Maldonado <email address hidden>
Date: Wed Dec 11 13:56:18 2013 -0300

    Change how scrollShift is calculated

    In Firefox $('body').scrollTop returns 0, that's why the modal
    appear outside the visible screen. Added $('hmtl).scrollTop.

    var scrollShift = $('body').scrollTop() || $('html').scrollTop()

    Closes-Bug: 1251361

    Change-Id: Icf691eb140e091615a98f1fbd415428cd418ba9e
    (cherry picked from commit 8950b90d1777e265f98379098cebef7517642efe)