Follow the design we have in gtk+ for buttons dialogs,
which are at the bottom and they expand full width, having
the same amount of space for each one.
Also, since this removes any space for non-button widgets
in the button area, move the spinner present in the auth prompt
dialog next to the password entry.
https://bugzilla.gnome.org/show_bug.cgi?id=746108
We now stopped using notification actors directly for anything, so
we can simplify the Notification class significantly by turning it
into a purely informational object others can use to built their UI
representation from.
https://bugzilla.gnome.org/show_bug.cgi?id=746343
Since we stopped special-casing chat notifications to use the old
notification actor, we need to provide a notification banner to
maintain the inline chat functionality, so split out the UI from
the existing ChatNotification class.
https://bugzilla.gnome.org/show_bug.cgi?id=746343
The .selected style class indicates the "active" menu item, which
is generally the last hovered or focused one (whichever happened
last). Styling that instead of :focus and :hover directly guarantees
that only a single item will be selected at a time, which removes
ambiguity and matches the behavior of GTK+ menus.
https://bugzilla.gnome.org/show_bug.cgi?id=745246
Commit 5a8923ef95 removed support for legacy status icons from
the notification system, as we no longer want them to appear as
notifications. As we are unfortunately not quite at a point where
we can remove all support for them for good, so we now need an
alternative place to put them. Add a small dedicated tray at the
bottom which appears when any legacy status icons are active. By
default it is almost completely hidden to not interfere with the
user's windows, but can be expanded on demand to interact with
the icons.
https://bugzilla.gnome.org/show_bug.cgi?id=745162
With the message tray no longer being a distinctive UI element,
the existing <super>m shortcut for viewing the notification list
is no longer mnemonic. It is also less convenient as it requires
both hands with most keyboards. So make <super>v the new default
to _view_ notifications, which matches the corresponding Windows
default.
The previous default is kept as secondary shortcut to ease the
transition.
https://bugzilla.gnome.org/show_bug.cgi?id=687986
GNOME Shell throws the following warning message:
'St-WARNING **: Too many values for border-radius property.'
Was fixed with just remove the last '0' on the 'border-radius'
property in the '.tile-preview-left.on-primary' class on both files:
gnome-shell.css and gnome-shell-high-contrast.css.
https://bugzilla.gnome.org/show_bug.cgi?id=744900
