Commit bd6e7f14d1 reimplemented the cycle keybindings to
fix cycling between more than two windows, but the approach
of highlighting cycled windows by actually focusing them has
the drawback that cycling messes up the MRU order of windows.
To fix this, only change the window focus when the operation
finishes, and use a dedicated actor that draws a border around
a window clone for highlighting.
https://bugzilla.gnome.org/show_bug.cgi?id=771063
There's no particular reason for this actor to be reactive and thus
preventing input events to reach actors underneath, e.g. quickly
clicking on something while the popup isn't yet finished animating
out.
https://bugzilla.gnome.org/show_bug.cgi?id=770382
Have it notify properly of changes to the current input source, as
well as exposing those in get_groups().
The support for virtual keyboard events has been replaced by
ClutterVirtualInputDevice, which can be thought of as the equivalent
to the XTEST devices in X11.
https://bugzilla.gnome.org/show_bug.cgi?id=765009
If a sandboxed app requests access to some system resource (camera,
microphone, location), the portal frontend needs to ask the user
for permission. In GNOME, we want this to be a system modal dialog,
so provide an org.freedesktop.impl.portal.access implementation
that exposes a generic system modal permission dialog on the bus.
https://bugzilla.gnome.org/show_bug.cgi?id=768669
We currently use the :active pseudo class to mark the selected day
in the calendar. Whenever the selected date changes, the class is
added to the corresponding button and removed from all others.
However when the selected date doesn't change (i.e. when clicking
the already selected date), the buttons are not updated and the
use of the :active class conflicts with StButton's builtin handling
of the class - the class is removed on the button up event and the
button is deselected.
Fix this by simply using a different pseudo class.
https://bugzilla.gnome.org/show_bug.cgi?id=746867
The last patch fixed marking days in the calendar where all
events are ignored, but it doesn't pick up the change when
an event is hidden. Emit an appropriate change notification
to fix this issue.
https://bugzilla.gnome.org/show_bug.cgi?id=768538
Ignoring events is currently implemented in the message list's
event section, which means that the calendar does not consider
ignored events when marking days with events. In order to fix
this, move the handling of ignored events to the event source,
which is shared between both components.
https://bugzilla.gnome.org/show_bug.cgi?id=768538
Commit 9b07ce1d0d broke the code that keeps the OSD window square.
Use that opportunity to move away from the hack of setting the
min-height style property from code and adjusting the width on
allocate, and implement a proper constraint instead.
https://bugzilla.gnome.org/show_bug.cgi?id=768317
ClutterActor:width is a floating point property, so it will not be
automatically rounded to non-fractional values that properly align
to pixels. To fix the resulting blurriness, add explicit rounding.
https://bugzilla.gnome.org/show_bug.cgi?id=768317
Commit 9b07ce1d0d changed the OSD window's level bar to be a regular
actor instead of a custom drawn bar. The bar actor's width depends on
both the configured level (e.g. 40%) and the available width, however
the width is currently only updated when the configured level changes.
Fix that by properly considering changes to the parent's width as well.
https://bugzilla.gnome.org/show_bug.cgi?id=768317
Commit c39ffa111 moved the signal handling from the controls- to the
background-group to enable scrolling on non-primary monitors.
However this broke scrolling on reactive overview elements as the
workspace switcher, as they're not descendants of the background.
To fix, move scroll-event handling to the overview group itself,
which is the common ancestor of all overview elements.
https://bugzilla.gnome.org/show_bug.cgi?id=768316
When we restart, we need to update the struts for the screen before
we enter the main loop, or maximized windows will get resized to the
size of the screen without struts, then resized back.
A workaround is needed for a Clutter bug that occurs when we get
the size of an actor before the first paint of the stage.
https://bugzilla.gnome.org/show_bug.cgi?id=761566
The memory which MetaBackground resides is freed automatically, when its
wrapper object Background is freed by garbage collection. But because the
memory for MetaBackground is huge, changing the background or changing the
background mode repeatedly makes a lot of memory to be in use until garbage
collection runs.
This patch frees the MetaBackground object explicitly when its
MetaBackgroundActor is destroyed which is the moment that the memory in the
object is not used anymore.
https://bugzilla.gnome.org/show_bug.cgi?id=766353
Signed-off-by: Hyungwon Hwang <hyungwon.hwang7@gmail.com>
This isn't a performance critical actor and the NVIDIA driver discards
offscreen buffers in some cases which would require us to go through
extra hoops to handle here which isn't worth it.
https://bugzilla.gnome.org/show_bug.cgi?id=739178
It is odd to switch workspaces on the primary monitor when panning on
a monitor without workspaces, so reject the gesture on non-primary
monitors when workspaces-only-on-primary is disabled.
https://bugzilla.gnome.org/show_bug.cgi?id=766883
It is odd to switch workspaces using the scroll wheel when the pointer
is on a monitor without workspaces, so only handle scroll events on
non-primary monitors when workspaces-only-on-primary is disabled.
https://bugzilla.gnome.org/show_bug.cgi?id=766883
We allow activating a workspace by clicking it when we know that
the user did not try to select a window and missed (namely: the
workspace is empty). However we currently always check for an
empty workspace on the primary monitor, which doesn't make sense
when the click happened on a different monitor.
https://bugzilla.gnome.org/show_bug.cgi?id=766883
Both the Overview::scroll-event and actions added via addAction()
are meant to work anywhere in the overview, but for now only work
on the primary monitor. Move the handling to the background group
that is known to span all outputs to fix.
https://bugzilla.gnome.org/show_bug.cgi?id=766883
The stack was used to overlay a message indicator over the overview
group. That indicator is long gone, so there's no longer a need for
an intermediate actor in the hierarchy.
https://bugzilla.gnome.org/show_bug.cgi?id=766883
Initializing the upper bound to zero means that on panning we'd start
scrolling from the first workspace even if the current workspace when
entering the overview was different since StAdjustment clamps the
value to be inside bounds.
https://bugzilla.gnome.org/show_bug.cgi?id=766883
If the source actor is destroyed while the popupMenu is shown -- this
can happen if a non favorite application was closing or crashes -- the
menu actor is improperly destroyed.
This makes the popupMenu close first and does a clean ungrab instead.
https://bugzilla.gnome.org/show_bug.cgi?id=757556
The various switcher keybindings are handled identically, except for
the popup that is shown; update the code to reflect that instead of
duplicating the code again and again.
https://bugzilla.gnome.org/show_bug.cgi?id=730739
The code to handle cycling through windows without showing a popup
was removed from mutter a while ago, which left the corresponding
keybindings mostly broken (i.e. they now only switch between two
windows). With the various switch-foo keybindings handled by the
shell, it is now easier to take over the cycle-foo keybindings as
well.
https://bugzilla.gnome.org/show_bug.cgi?id=730739
Logind recently got support for a hint property in Session Object to
inform if session is Locked or not. It is up to desktop environments
to keep this property up to date.
https://bugzilla.gnome.org/show_bug.cgi?id=764773
If the drag actor is destroyed before the animation
callback is called, the callback is never called and
we're sticked with dnd grabing the events after we
dropped the target.
https://bugzilla.gnome.org/show_bug.cgi?id=757676
We currently show the orientation lock button when an accelerometer
is present, however gnome-settings-daemon's xrandr plugin only applies
rotation when a builtin monitor is present. Update the button's
visibility to match gnome-settings-daemon.
https://bugzilla.gnome.org/show_bug.cgi?id=765267
ClutterLayoutManager's size request methods have an additional container
argument before the for-width/height parameters compared to ClutterActor.
https://bugzilla.gnome.org/show_bug.cgi?id=763068
While a channel has pending messages, it will pop up again when
dismissed. That is clearly not what users expect, so clear them
out first before closing a channel.
https://bugzilla.gnome.org/show_bug.cgi?id=747991
Let's make it really simple and ask user interactively, once. This
simplifies things for:
* Privacy panel of gnome-control-center as it doesn't have to filter
applications.
* Apps: If they are denied access, they can simply point users to
privacy panel of gnome-control-center since they can be sure location
access for the app can be enabled in there.
Also it's less annoying to user. Before this patch, if they denied
access to application, they had to keep doing that at least each time
they launched the application.
https://bugzilla.gnome.org/show_bug.cgi?id=762559
Alex told me that since it's not geoclue but rather GNOME-components
storing/accessing app permissions, it's better if we put it under
'gnome' rather than generic 'desktop' table.
Now that we no longer skip dimming/undimming windows while showing
the overview, we can still save a bit of work by changing the dimming
without animation while the window is hidden.
https://bugzilla.gnome.org/show_bug.cgi?id=762475
We skip window animations while the overview is shown (and the window
group is hidden) to avoid unnecessary work. However when an attached
modal dialog is opened or closed, this involves checking whether the
parent window should be dimmed - skipping that test means that we can
simply fail to dim or undim a window altogether, so do that check
unconditionally.
https://bugzilla.gnome.org/show_bug.cgi?id=762475
While we could have implemented this already a while ago, this would
have been a completely false security mechanism since we had no way of
reliably identifying applications. Since now with xdg-app, we can at least
reliably identify bundled applications, let's give users a choice of
which applications in particular they are OK with giving location data
to.
While we still can't reliably identify system (non-xdg-app) applications,
it seems extremely unlikely we'll ever be able to do that (at least not
in the near future) so we'll have to trust them to not lie about their
IDs.
Next release of geoclue will take the ID of bundled application directly
from corresponding xdg-app metadata so bundled applications can't simply
lie about their IDs.
https://bugzilla.gnome.org/show_bug.cgi?id=762119
This class will be responsible for authorizing applications that try to
access location information. Since this is mainly targetted for xdg-app
applications, we make use of xdg-app's D-Bus API to store
per-application authorization.
https://bugzilla.gnome.org/show_bug.cgi?id=762119
Add a dialog that is used in a following patch, to ask user if they want
a requesting application to gain access to their location.
Co-author: Florian Müllner <fmuellner@gnome.org>
https://bugzilla.gnome.org/show_bug.cgi?id=762119
Only recent IBus versions have support for this signal
which is used for wayland clients. In order to work
with older IBus versions we can silently ignore the
signal's absence.
https://bugzilla.gnome.org/show_bug.cgi?id=753476
We lost media controls outside of notification banners when
implementing the new notification designs. Reimplement this
functionality as a dedicated "Media" section in the message
list based on MPRIS.
https://bugzilla.gnome.org/show_bug.cgi?id=756491
Currently both the base classes for messages/sections and the message
list itself that instantiates the available sections are located in
the same module. As a result, it isn't possible to define sections
in a different module without introducing circular dependencies. The
Calendar module is already unwieldily large, so split it up a bit to
avoid it growing even bigger in the future.
https://bugzilla.gnome.org/show_bug.cgi?id=756491
It is not always possible to determine the type of audio device that
got plugged in. Add a system modal dialog to query the user in that
case and export in on the bus to gnome-settings-daemon.
https://bugzilla.gnome.org/show_bug.cgi?id=760284
IBus now provides a new method for cursor positioning where the
coordinates are relative to the focused window. This is useful for
wayland clients which don't have access to their global coordinates.
https://bugzilla.gnome.org/show_bug.cgi?id=753476
We are already emitting a 'drag-end' signal when no more dragging
is happening, so it makes sense to emit a 'drag-begin' too when
starting, so that apps interested in implementing different logic
between those two events can easily do it without needing to deal
with the underlying 'button-press-event' signal for the actor.
https://bugzilla.gnome.org/show_bug.cgi?id=761208
Before reenabling all extensions, we update the list of enabled extensions
to catch any changes that happened while extensions were enabled. However
this is currently broken as onEnabledExtensionsChanged() is a nop while
disabled, so just call getEnabledExtensions() directly.
draggable.startDrag() is called directly here (i.e. manualMode is not set),
we must keep track of the touch event and pass it to startDrag() then.
https://bugzilla.gnome.org/show_bug.cgi?id=756748
We need to keep track of the pointer emulating touch sequence. In order
to have events properly redirected on touch devices, the
Clutter.grab_pointer and ungrab_pointer() have been replaced by the grab()
and grab_sequence() ClutterInputDevice methods, one or the other is used
depending on the device triggering DnD.
An extra "sequence" argument has been added to startDrag, passing null here
will resort to pointer grabs.
This is enough to make thumbnails in the WorkspaceBox draggable through
touch.
https://bugzilla.gnome.org/show_bug.cgi?id=756748
It overrides ::button-release-event in order to implement the
hidden/shown toggling, it must do the same on TOUCH_END, otherwise
menus stay shown on touch.
https://bugzilla.gnome.org/show_bug.cgi?id=756748
This works for pointers and touch on X11, there is however no pointer
emulation on evdev, so touch triggers ::clicked with button==0 which
is ignored.
https://bugzilla.gnome.org/show_bug.cgi?id=756748
Animated backgrounds are based on a start time in local time - in case
of a timezone change, that time is no longer accurate. To fix, we need
to either make BGSlideShow aware of timezone changes (and notify us to
update the animation), or just reload the animation - timezone changes
should be a rare event, so go with the simpler second option.
https://bugzilla.gnome.org/show_bug.cgi?id=758939
Any time estimates we can come up with are notoriously unreliable;
even on devices that report correct (dis)charging rates, any change
in workload, screen brightness etc. can throw our estimate off by
a huge amount. This is further compounded by bad firmware and battery
firmware which reports inaccurate data as neither Windows nor Android do
not use that data.
So instead, limit ourselves to only showing the current percentage
and leave its interpretation to the user.
As an added bonus, we end up with shorter strings that are less likely
to cause problems with ellipsization when translated.
https://bugzilla.gnome.org/show_bug.cgi?id=708472
Builtin chat and network notifications already follow the notification
policy of appropriate applications, it makes sense to do the same for
autorun notifications to give users control over hotplug notifications
in Settings.
If we detected that Bluetooth devices were setup, show the Bluetooth
menu so that users can easily turn Bluetooth back on.
This is a bit of a hack, as we cannot detect whether there is a
Bluetooth adapter at all when it's disabled, so we cannot tell whether
there were any Bluetooth devices setup, at some point. This state is
saved in the gnome-shell GSettings in the had-bluetooth-devices-setup
key.
Checking whether we saw Bluetooth devices at one point is a good
enough guess of whether there will be some in the future.
https://bugzilla.gnome.org/show_bug.cgi?id=723848
It's very unexpected that a spinner animation would
preempt idles from running.
This commit runs the spinner animation with a low
priority to ensure it doesn't take over the main
loop.
https://bugzilla.gnome.org/show_bug.cgi?id=754814
Right now the spinner animation updates every 14ms.
60 frames per second would be one frame per 16.667ms,
so we're waking up more frequently than we need to.
This commit changes the wakeup to happen after 16ms.
https://bugzilla.gnome.org/show_bug.cgi?id=754814
If the source actor is sized 0x0, the grabHelper will close the menu
on button release if the menu ends up flipped because in that case the
release event happens when the pointer is neither over the source
actor (since it's 0x0) or over the menu actor. A zero sized source
actor works for the non-flipped menu case because the menu's actor
itself ends up underneath the pointer.
https://bugzilla.gnome.org/show_bug.cgi?id=756605
If we get another effect on the same actor, we should make sure to
remove the clone through the "overwrite" methods provided by Tweener, or
there will be a race that might end up with a stray clone being left
around.
https://bugzilla.gnome.org/show_bug.cgi?id=756714
The translation should describe the difference between the fullscreened
and unfullscreened position of the window - however we are currently
assuming a fullscreen position of (0, 0) instead of the monitor's origin,
which causes glitches on dualscreen setups.
https://bugzilla.gnome.org/show_bug.cgi?id=756697
Some labels in the system status menu - namely network names - are out
of our control, and may thus grow the width "infinitively" unless we
restrict the menu width. So far we have been doing this by setting a
fixed width or max-width, but any value we put there might end up
being too restrictive in some locales. Instead, request a width that
fits all the labels we want to show unellipsized and use that instead
of an arbitrary limit.
https://bugzilla.gnome.org/show_bug.cgi?id=708472
We use the newly introduced feature from Mutter to hook up our own
fullscreen and unfullscreen animations.
To give the illusion of a transition as smooth as possible, we create a
snapshot of the current contents of the actor before its state is
changed, and crossfade between the two states while the size changes.
https://bugzilla.gnome.org/show_bug.cgi?id=707248
StIcon will skip loading the texture when its theme node is unset (which
may happen on style changes while the widget is hidden). While our size
request to compute the dash icon size will create the icon's theme node
if necessary (and of all its parents), a missing texture can still throw
off our computation.
Make sure this doesn't happen by ensuring the icon's style first, so the
texture is updated in response to StWidget::style-changed if necessary.
https://bugzilla.gnome.org/show_bug.cgi?id=745649
When adjusting dash icon sizes, we compute the icon padding by subtracting
the configured icon size from the first icon actor's preferred size. To
make sure that the preferred size correctly corresponds to the current
dash icon size even while the icon is animating, we enforce the size
before the size request. For that we used to temporarily manipulate
the icon texture size directly, but commit e92d204d42 cleaned this
up to use the setIconSize() method instead.
This does not work however, as the icon actor's iconSize property will
always match the dash iconSize property, making the method a noop. So
go back to the original approach of enforcing the texture size to make
sure we always base our computations on correct values.
https://bugzilla.gnome.org/show_bug.cgi?id=745649
There is nothing particularly critical about this notification, it
was only marked as such to get certain behavior like auto-expanding
and sticking-around to be acknowledged by the user (as it offers
more actions than the summary notification, so it is frustrating
when it goes away because it was missed).
As all notifications will now stay visible until we are sure the
users has seen them, the latter reasoning no longer applies.
Auto-expansion doesn't appear too important and may even be considered
annoying by users, so remove the CRITICAL hint now.
https://bugzilla.gnome.org/show_bug.cgi?id=657923
We are currently erroring out when the tab chain doesn't contain at
least one window for an app which might happen for windows that don't
take focus like xeyes. This leaves us in a state where we can't show
the switcher at all. Let's just ignore these apps instead of looking
broken.
While the GtkSettings::gtk-shell-shows-app-menu property is meant to
reflect a desktop capability (i.e. in the GNOME case: the app menu is
shown in the top bar), it is possible for users to overwrite it.
Respect the setting and actually hide the menu in that case.
https://bugzilla.gnome.org/show_bug.cgi?id=745919
Refer to the system menu in the top bar as "System" rather than "Settings" as
it contains more than just settings and "Settings" is already used for the
settings panel. "System" is also used elsewhere, so include context for
translators.
The destroy signal handler is kept connected despite the NotificationMessage
being destroyed, which leaves dangling NotificationMessage objects that will
be mass destroyed when the Notification object these depend upon is finally
destroyed.
Depending on the amount of accumulated NotificationMessages, this may lead
to temporary freezes or other more funky issues when recursion limits are
hit.
https://bugzilla.gnome.org/show_bug.cgi?id=755425
When loading several animations at the same time, the last call
overrides the result for all of them.
This commit caches all animations separately based on the source's
schemas.
https://bugzilla.gnome.org/show_bug.cgi?id=741453
* switch to a one-column layout (and adjust strings/widths
accordingly
* remove separator before system menu
* add link to account settings to user submenu for consistency
https://bugzilla.gnome.org/show_bug.cgi?id=751377
Since commit 79c04c93e4, we launch Polari instead of Empathy when
activating a chat notification for an IRC channel. It therefore makes
sense to follow Polari's notification policy for those notifications
rather than Empathy's.
https://bugzilla.gnome.org/show_bug.cgi?id=752881
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
It may be 2015, but users still stumble upon the occasional .desktop
file that uses a filename encoding other than UTF-8. We currently
fail quite spectacularly in that case by not displaying any apps at
all - handle this case more gracefully, by only filtering out the
offending apps.
https://bugzilla.gnome.org/show_bug.cgi?id=651503
If there's a caret or focus move we should delay it until the pointer
is stationary for a little while so as to avoid jittery and spurious
viewport movements.
https://bugzilla.gnome.org/show_bug.cgi?id=752138
This object (not really a Clutter.GestureAction) sets up a captured-event
handler, which exclusively looks for 4 finger touchpad swipes, emitting
an ::activated signal under the same terms than WorkspaceSwitchAction.
https://bugzilla.gnome.org/show_bug.cgi?id=752250
shell_global_get_overrides_settings() may return %NULL in case of
custom shell modes (i.e. not the default and classic ones); while
this is not officially encouraged, we should still handle it rather
than throw an error.
https://bugzilla.gnome.org/show_bug.cgi?id=751921
The control center will call this method when the configuration dialog
for a display opens/closes, which will cause the same labels to quickly
fade out and in again, looking like it's flickering.
This commit fixes the issue by removing the tweens altogether.
https://bugzilla.gnome.org/show_bug.cgi?id=751599
In some cases we might be allocated a size such that
this._grid.topPadding and this._grid.bottomPadding are both 0 which
means that the ScrollView fade effect gets removed. In that case don't
try to access the effect since it will be NULL.
https://bugzilla.gnome.org/show_bug.cgi?id=750714
The menu items to move a window to the left/right workspaces were
removed when the window menu was implemented in GNOME Shell. This
is OK for the default vertical layout but not for alternatives.
https://bugzilla.gnome.org/show_bug.cgi?id=751344
And make these only handled on wayland. There's a plethora of issues
around touch passive grab and touch/pointer doubly handling to use
these right away on X11, so we stick to single-touch/pointer there.
This reverts commit 032a688a72.
https://bugzilla.gnome.org/show_bug.cgi?id=750287
Instead of using gnome-settings-daemon's D-Bus interface's presence.
iio-sensor-proxy now offers a D-Bus interface, which will exported
"HasAccelerometer = true" when an accelerometer is present.
https://bugzilla.gnome.org/show_bug.cgi?id=749671
Just reuse this gesture rather than implementing edge detection ourselves.
As a plus, we might get touchpad swipe support when Clutter handles it.
https://bugzilla.gnome.org/show_bug.cgi?id=749742
The menu is clearly associated with a particular window, so keeping
it around when the window is gone doesn't make sense - in case of
the window menu, it is actually harmful as every action will act on
the invalidated window and result in a crash. So just dismiss the
menu when the menu is unmanaged.
https://bugzilla.gnome.org/show_bug.cgi?id=749529
When chrome is added with the trackFullscreen parameter, the actor's
visibility will be updated automatically whenever its monitor's
fullscreen state changes. However as we currently ignore the fullscreen
state at the time the chrome is added, the initial visibility may well
be incorrect - fix this by updating the initial visibility as necessary.
https://bugzilla.gnome.org/show_bug.cgi?id=749383
Since the introduction of per-source notification policy in commit
098bd4509b, the NotificationPolicy::enable-changed signal has been
used to track the 'enable' setting. However as we never actually
emitted that signal, this never worked without a restart - oops.
https://bugzilla.gnome.org/show_bug.cgi?id=749279
If we aren't the active session clutter can't animate and thus we
can't expect the shield to be shown before releasing the suspend
inhibitor so we should release it immediately when becoming inactive.
https://bugzilla.gnome.org/show_bug.cgi?id=749228
The whole point of holding a suspend inhibitor is to be able to lock
before suspending.
Currently, when resuming we immediately take the inhibitor without
checking that we're locked which means that we won't be able to
release this inhibitor if we don't unlock at least once.
To prevent that and to better match the inhibitor's intention in the
first place, we can tie the inhibitor with not being locked. In
practice, we also want to let the locking animation finish before
suspending, so we'll tie the inhibitor with not being active
instead.
https://bugzilla.gnome.org/show_bug.cgi?id=749228
This could happen if we are VT switched away and an animated
activation is requested because we're preparing to enter sleep. Since
we don't animate in this case we'd never reach
_completeLockScreenShown() before coming out of sleep, at which point
we _inhibitSuspend() again and would leak the previous inhibitor.
https://bugzilla.gnome.org/show_bug.cgi?id=749228
Commit 08690d658f generalized the banner-blocking behavior of the
dateMenu to all menus that would obscure the banner. However setting
up the 'open-state-changed' handler only when an indicator is added
does not work for indicators that change their entire menu (like the
app menu) - we currently end up with menus with no connected signal
handler, and throw an error when trying to disconnect an invalid
signal ID.
To address this, add a new PanelButton::menu-set signal and use that
to set up the 'open-state-changed' handler.
https://bugzilla.gnome.org/show_bug.cgi?id=745910
For barriers like the hot corner which are made up of multiple axis
barriers, make sure that all the barriers have been left before
resetting the barrier.
We currently block banners while the time+date menu is open, as it
would obscure the notification. However it is not necessarily the
only menu for which this is the case, so generalize the behavior
to all menus that would overlap banners when open.
https://bugzilla.gnome.org/show_bug.cgi?id=745910
As notifications appear in the time+date dropdown's message list, there's
a strong relationship between notification banners and the menu. However
while the time+date menu is centered by default, which matches the banner
position, its actual position depends on the session mode - in particular
it is moved to the right in classic mode.
Reinforce the relationship in these cases by moving notification banners
underneath the time+date menu.
https://bugzilla.gnome.org/show_bug.cgi?id=745910
Unlike entries in the calendar's message list, banners are not subject
to the normal keynav chain, and making the banner actor itself unfocusable
allows for the focus to be moved to the action area when expanded.
https://bugzilla.gnome.org/show_bug.cgi?id=747205
