The current search system uses the OR operator to concatenate search
terms. While results which are matched multiple times sort before
other matches, it is almost guaranteed that adding an additional term
to the search increments the number of results, which is rather
surprising.
https://bugzilla.gnome.org/show_bug.cgi?id=610955
When calling Notification.update, reuse the previous _bannerBox and
related labels (only changing the label content and relayouting), so
that the opacity set on popOut is preserved. As a consequence, updating
an opened notification no longer shows (or flicker) the banner at the
top.
https://bugzilla.gnome.org/show_bug.cgi?id=625502
The start date is shifted by a week if the day number of the month's
first day is smaller than the week start's day number. Probably the
only real world examples are months starting on a Sunday with locales
using Monday as start of week.
https://bugzilla.gnome.org/show_bug.cgi?id=625756
It is not obvious that only the icon is clickable to activate the
default action - in fact, with the area being that tiny, many don't
even know that notifications can be clicked.
Just extend the clickable area to the whole notification.
https://bugzilla.gnome.org/show_bug.cgi?id=613932
Adds class PopupSwitchMenuItem, which is a two-state switch similar
to those in system status indicators mockups. Also adds class Switch,
which represents the switch itself, in case it is useful somewhere
else.
https://bugzilla.gnome.org/show_bug.cgi?id=621880
In addition to already grabbing focus in the summary notifications,
we also want to grab focus in the new notifications when the user
hovers over them and expands them.
The notifications that expand automatically will only get focus once
the user hovers over them. The notifications that don't expand will
never grab focus because they don't need it.
Make sure that we toggle the way we grab focus when switching between
the overview and the main mode. This is necessary because, unlike
summary notifications that pop down when the user moves between the two
modes, new notifications keep being shown as long as the user hovers
over them or until they time out.
https://bugzilla.gnome.org/show_bug.cgi?id=617224
Because clicking on the summary item to have it display its notification
is a more deliberate action than hovering, we can now grab focus in that
notification. This makes chat notifications in the summary more convenient
to use because you don't need to click on the text entry there.
We pop down the notification when the user clicks anywhere outside of it,
triggers the overview, or the run dialog.
https://bugzilla.gnome.org/show_bug.cgi?id=617224
This ensures that the summary appears when we are showing a new
notification and switch to the overview at the same time.
Another effect of this patch is that the summary is shown if the
user moves the mouse to the bottom right corner while a notification
is being shown, which is ok.
This patch adds the method "removeMenu" to PopupMenuManager, to allow
for removal of menus after they're inserted. In order to do this, it
needs to store along with the menu all the relevant signal connections,
that are disconnected when the menu is removed.
Also adds a parameter "position" to "addMenu", so that menus can added
in arbitrary order (in particular to reintroduce those which were removed).
This patch is intended towards dynamic menu users, like extensions for
application lists, docks, sidebars showing recent documents or favourites,
as well as advanced system tray implementations.
https://bugzilla.gnome.org/show_bug.cgi?id=622730
In GSettings, a change notification is generated immediately from context of the _set() call.
In GConf, The "value_changed" signal is emitted whenever the server
notifies your client program that a value has changed in the database (100% NOT from context of the _set() call).
https://bugzilla.gnome.org/show_bug.cgi?id=624296
We need to only connect to 'action-invoked' on notification once
when the notification is created. We were accumulating callbacks
otherwise, which resulted, for example, in the Rhythmbox skipping
through multiple tracks when the 'Next' button was hit.
Always be sure to destroy the notification when its source is
destroyed, which is the case when an action is invoked.
Note that in the future, we might not want to destroy the source
for some notifications when an action is invoked. For example,
it makes sense to keep Rhythmbox in the tray while the music is
playing and allow the user to use the controls from the summary
notification too.
Solved by splitting the base class (PanelMenuButton) in a separate
module, ui.panelMenu, which is meant to hold also other reusable
button classes.
https://bugzilla.gnome.org/show_bug.cgi?id=621705
The spinner animation moving from left-to-right to indicate a starting
application changes its direction on reaching the end of the movement.
Instead, keep the spinner at the right of the app name until startup
has finished.
https://bugzilla.gnome.org/show_bug.cgi?id=623687
We should not be showing the cursor in the search entry in the overview
if the user's input will be appearing elsewhere, such as in the run dialog,
in the Looking Glass console, or in the notification's response field.
"text-align" allows setting the alignment of text, with respect to
other lines and allocated space, without requiring a reference to
the ClutterText (which is private for most widgets).
If not specified, all text is left-aligned.
https://bugzilla.gnome.org/show_bug.cgi?id=622447
Sometimes it is useful to print numbers in hex format - add the
appropriate specifier. Also support a minimum field width to
pad the formatted string with spaces (or zeros if the width is
prefixed with '0').
https://bugzilla.gnome.org/show_bug.cgi?id=622597
This is part of the design update for the message tray.
Source now takes an extra argument called 'title'.
All expanded message tray items are same width, which is determined by
the width of the item with the longest title, up to MAX_SOURCE_TITLE_WIDTH.
This is done so that items don't move around too much when one is expanded
and another one is collapsed.
https://bugzilla.gnome.org/show_bug.cgi?id=617224
While the contents of the left and right group in the panel are
flipped correctly, the groups themselves have to be swapped as
well. The location of the hot corner has to be corrected as well.
https://bugzilla.gnome.org/show_bug.cgi?id=622243
It has probably crossed the line to evil by a mile or so, but here
it is: a Tweener.slowDownFactor replacement used by all animations
without exception.
While at it, update Tweener to use the new setTimeScale() upstream
function instead of adjusting the timeline directly.
https://bugzilla.gnome.org/show_bug.cgi?id=622249
Use GSettings for all Shell configuration. GConf is kept to read
configuration from external programs (Metacity, Nautilus and Magnifier),
but ShellGConf is removed because it's mostly useless for the few calls
we still have. Also get rid of unused GConf code in ShellAppSystem.
A basic GConf schema is still used to override Metacity defaults and
configure Magnifier in a system-wide fashion. GConf is also used as
GSettings backend via the GSETTINGS_BACKEND environment variable.
All of this will be removed when these programs have been ported
to GSettings and able to use dconf.
GLib 2.25.9 is required. Schemas are converted to the new XML format,
and compiled at build time in data/ so that the Shell can be run from
the source tree. This also requires setting the GSETTINGS_SCHEMA_DIR
environment variable both when running installed or from source tree,
in src/gnome-shell.in and src/gnome-shell-clock-preferences.in.
https://bugzilla.gnome.org/show_bug.cgi?id=617917
The shell design says that upon launching an application,
no X window should have focus, and we should display an
animated launching indicator.
Implement this by in panel.js, keep track of the last started
application. If there isn't currently an X focus, show an animation
for the last starting application.
https://bugzilla.gnome.org/show_bug.cgi?id=598349
Canonical replaced status icons with libindicator based solutions,
which don't work in the shell environment. Force the distro-patched
versions to fall-back to upstream.
https://bugzilla.gnome.org/show_bug.cgi?id=621382
While zoomed out in drag mode, the workspaces at the left and right
of the active workspace are slightly transparent - when switching
workspaces, one of the transparent workspaces becomes the new active
workspace, but its opacity is not updated.
https://bugzilla.gnome.org/show_bug.cgi?id=620940
When in drag mode, the linear view raises a transparent actor
covering the entire stage. That way the view can handle events
like dragging items to the screen edges, but in order to not
disable any drop target not handled by itself, it duplicates
huge amounts of code from dnd.js.
Cleanup that mess by using the new drag monitoring support.
https://bugzilla.gnome.org/show_bug.cgi?id=620504
Sometimes it is desirable to be able to react to DND events that
happen outside a target actor's bounds, e.g. to implement reactive
screen edges. Add a simple interface which allows to hook into
drag motion and drop handling without jumping through ugly hoops.
https://bugzilla.gnome.org/show_bug.cgi?id=620504
The design calls for item to not appear abruptly, but not too slow
either - 100ms seems to be a good sweet spot for elements which are
supposed to appear "instantly".
Add a fade effect to the alt-tab popup and set the timings for other
fade effects to 100ms.
https://bugzilla.gnome.org/show_bug.cgi?id=621247
We query the transformed position and size of the popupMenu before actually showing
it which results into wrong positioning, when displaying it for the first time.
In case of the statusMenu this can even result into it being offscreen.
https://bugzilla.gnome.org/show_bug.cgi?id=621385
Add _st_actor_contains() in st-private for use within St, and
monkey-patch in a Clutter.Actor.contains() for use by javascript, and
then replace all the duplicate implementations with one or the other
of those.
https://bugzilla.gnome.org/show_bug.cgi?id=621197
Currently, we use 'gtk-yes', 'gtk-no' and 'gtk-media-pause' as
user status icons. It seems more logical to use the dedicated
icons from gnome-icon-theme instead.
https://bugzilla.gnome.org/show_bug.cgi?id=620374
First, we were passing an incorrect timestamp to
meta_display_focus_the_no_focus_window - fix that.
The invocation of set_focus_app to the started app there couldn't
really work, because (if the above call had worked) we'd get the
X reply *after* the started app.
What we need to untangle here is the distinction that's now made in
ShellApp between _STATE_STARTING and _STATE_RUNNING. A nice way to
start doing this is to rebase ShellWindowTracker to only be concerned
with app states. Concretely, the current "has windows implies
running" logic now lives just inside shell-app.c.
Rename the app-running-changed signal to be app-state-changed. This
will ultimately be useful so that inside the panel, we can track
the last started app.
https://bugzilla.gnome.org/show_bug.cgi?id=620899
Currently the workspaceSwitcher does not take the screen size into account
which could result into overflowing the screen.
Fix that but using Shell.GenericContainer instead of St.BoxLayout which takes
the monitor size into account when allocating.
https://bugzilla.gnome.org/show_bug.cgi?id=620404
Before adding a new entry to the history, we check that it does not
match the previous entry to cut down the number of duplicate entries.
Part of that condition is a check for a history length greater zero
to avoid an illegal negative index, with the side effect that nothing
is ever added while the history is empty.
https://bugzilla.gnome.org/show_bug.cgi?id=621123
As the design calls for smooth transitions whenever possible, use
a similar fade effect for the all-apps and more-docs menus as for
the panel menus.
https://bugzilla.gnome.org/show_bug.cgi?id=620775
When the app well doesn't contain any applications, it displays a placeholder text
to indicate that it's a drop target. When porting WellGrid from St.Bin to St.BoxLayout,
the call to set_child() to set the text was overlooked.
https://bugzilla.gnome.org/show_bug.cgi?id=617281
Currently, only the base style class is set in the constructor, the
style update according to the state of the represented app is deferred
until the actor is shown.
As existing icons are destroyed and recreated when the number of icons
changes, this behavior causes the icons of running apps to flicker if
CSS transitions are used.
Set the style directly in the constructor and update the code to not
delay style updates until the actor is shown - StWidget does defer
expensive calculations until the actor is mapped anyway.
https://bugzilla.gnome.org/show_bug.cgi?id=620782
As the search entry captures the pointer when activated, the hover
state is not updated properly when the activation is cancelled
(either by clicking outside the entry or by hitting Escape).
Update the state manually in these cases.
https://bugzilla.gnome.org/show_bug.cgi?id=611095
Separate out the main app view into different sections based on the categories
in the desktop file. The configuration is done via gmenu and the desktop menu
specification, we set XDG_MENU_PREFIX="gs-" on startup, so that gmenu reads
gs-applications.menu, which we install.
There is no support for "submenus" - only the menus directly under
Applications will be displayed as categories.
https://bugzilla.gnome.org/show_bug.cgi?id=614131
Currently we only relayout when the screen size changes, this gets
the cases where a monitor gets added/removed but not when the primary
monitor changes.
We need to relayout on all monitor layout changes.
Remove ShellGlobal::screen-size-changed signal as it is no longer used, Gdk is
used to track changes now.
A ShellGlobal::gdk-screen property is added for this purpose.
https://bugzilla.gnome.org/show_bug.cgi?id=620377
In all the cases where we activate GNOME 2 UI, e.g. the shutdown
dialog, pop out of the overview. Otherwise, it's fairly broken
since you won't see the result of your action.
https://bugzilla.gnome.org/show_bug.cgi?id=620525
Currently we don't get any drop events for dual screen modes with a screen
at the right, and behave weird by hardcoding the screen size and 0 as drag
edges.
Fix that by spawning the drop group over the whole stage and take the primary monitors position and size into account in _handleDragOver.
https://bugzilla.gnome.org/show_bug.cgi?id=620378
This patch adds ISO week dates to the calendar. Week dates are an
often used feature in business and government offices. Can be turned
on through gconf, off by default.
https://bugzilla.gnome.org/show_bug.cgi?id=603532
When dragging windows in linear view, the workspace zooms out to
allow moving the window to other workspaces. Enable the same
behaviour for items dragged from the dash.
https://bugzilla.gnome.org/show_bug.cgi?id=618055
While zoomed out, the workspaces view's drop target spans the entire
monitor to implement reactive screen edges. When a drop event is not
handled by the view, an attempt is made to pass it on down the stack,
but it doesn't work properly. Fix it by iterating the target's parents
as well.
Also improve the code which translates dnd coordinates to target
positions.
https://bugzilla.gnome.org/show_bug.cgi?id=619203
Ignore the fullscreen flag when we are in the overview,
otherwise we might up not showing actors like the panel even though
they have visibleInOverview set to true.
https://bugzilla.gnome.org/show_bug.cgi?id=619693
Compute a frame rate for the period between:
- User sees first frame of overview animation
- User sees fully zoomed-out overview
And replace the current Frames count metrics with this. The
previous frame count metrics were actually over the period from
the start of the animation until the window labels finished
animating in; here we are careful to look at a more restricted
period.
https://bugzilla.gnome.org/show_bug.cgi?id=619521
Add events when we start preparing a frame and finish preparing
a frame. (In addition to measuring property-updating overhead, this allows
us to see the interval between finishing preparing a frame and starting
painting the frame, which is the relayout time.)
https://bugzilla.gnome.org/show_bug.cgi?id=619515
Currently, the drag and drop code assumes that on a successful drop
the target will either consume the drag actor or that it is otherwise
OK to destroy the actor.
As the drag behavior for window preview was changed, dropping a preview
on the dash now results in the preview being swallowed - to fix, add an
option to restore the actor in case of a successful drop as well.
https://bugzilla.gnome.org/show_bug.cgi?id=619203
The activities overview is not a place where we expect users to
interact with a specific application, so showing the application
menu there is misleading.
https://bugzilla.gnome.org/show_bug.cgi?id=618479
The preference dialog for the panel clock does not set its gettext
domain, so it's not translated even if though translations are
already available.
Fix by setting the domain in the GtkBuilder file and binding the
domain to the locale directory.
https://bugzilla.gnome.org/show_bug.cgi?id=618873
There are some places in the code where we use both fixed positioning
and CSS. Currently we use either a combination of ClutterGroup and StBin,
or we uses StBoxLayout with fixed positioning. Replace those with the new
StGroup container.
https://bugzilla.gnome.org/show_bug.cgi?id=613907
First, simply set the ellipsize flag on the application menu labels.
Next, rework how we lay out the panel components so that the center
box is always centered and constrains the left and right, rather
than pushing it around.
Previously, as part of making the shell not obviously explode if
one had a lot of tray icons, we allowed them to push the clock over.
Instead, go back to just failing in this case; we need to exile legacy
tray icons, not be slightly less ugly.
https://bugzilla.gnome.org/show_bug.cgi?id=592640
SwitcherList.actor is no longer a St.BoxLayout but a
GenericContainer now, so the hack in AppSwitcher._getPreferredHeight is no
longer needed (it is called with the correct width now).
https://bugzilla.gnome.org/show_bug.cgi?id=613194
Switch from having separate METRICS and METRIC_DESCRIPTIONS objects
in a perf module to a single METRICS array. This is done so the
perf module can define the units for each metric.
In addition to improving the output in the web interface, the purpose
of having units is to give some clue about how to pick from multiple
values from different runs. In particular, with the assumption that
"noise" on the system will increase run times, for time values we want
to pick the smallest values, while for "rate" values, we want to pick
the largest value.
https://bugzilla.gnome.org/show_bug.cgi?id=618189
When SHELL_PERF_OUTPUT is set, instead of just dumping out the metrics, dump
a more complete report with:
- Event descriptions
- Metric descriptions and value
- Event log
Helper functions shell_perf_log_dump_events() and shell_perf_log_dump_log()
are added to ShellPerfLog to support this. The gnome-shell wrapper is adapted
to deal with the changed report format.
https://bugzilla.gnome.org/show_bug.cgi?id=618189
Add gnome-shell options:
--perf-iters=ITERS"
Numbers of iterations of performance module to run
--perf-warmup
Run a dry run before performance tests
Make a successful run of a performance test return 0 not non-zero,
and handle the difference between that and a 0-exit in normal
usage (meaning replaced) in the wrapper.
https://bugzilla.gnome.org/show_bug.cgi?id=618189
Add some basic statistics for allocated memory based on mallinfo(),
and use that to define two metrics:
usedAfterOverview: bytes used after the overview is shown once
leakedAfterOverview: additional bytes used when the overview is
shown a second time.
https://bugzilla.gnome.org/show_bug.cgi?id=618189
We want to be able to summarize the behavior of the shell's
performance in a series of "metrics", like the latency between
clicking on the Activities button and seeing a response.
This patch adds the ability to create a script under perf/
in a special format that automates a series of actions in the
shell, writing events to the performance log, then collects
statistics as the log as replayed and turns them into a set
of metrics.
The script is then executed by running as gnome-shell
--perf=<script>.
The 'core' script which is added here will be the primary
performance measurement script that we use for shell performance
regression testing; right now it has a couple of placeholder
metrics.
https://bugzilla.gnome.org/show_bug.cgi?id=618189
To support scheduling performance-measurement scripts that want to run
a number of actions in series, add shell_global_run_at_leisure() to run
a callback when all work is finished.
The initial implementation of this is not that accurate: we track
business in Tweener.js via new shell_global_begin_work(),
shell_global_end_work() functions, and we also handle the case
where the main loop is continually busy.
https://bugzilla.gnome.org/show_bug.cgi?id=618189
We don't need to reposition the menu every time its button is
allocated; we can just stick it in the right place when we pop it up
(which is guaranteed to not be during a layout cycle).
(This means that now we won't reposition the menu if the button
moves/resizes while the menu is already popped up, but it's not clear
that we'd want it to anyway, since that could easily result in the
user selecting the wrong item, etc.)
Also, we don't need to override the menu's width any more, so remove
that.
https://bugzilla.gnome.org/show_bug.cgi?id=619113
* Align the icons inside text
* Add application name to Quit
* Fade in/out the menu
* Drop some padding around the edges
* Add padding around the separators
* Use a gradient for separators
https://bugzilla.gnome.org/show_bug.cgi?id=618460
Per design discussion, change things back so that when choosing
an individual window, we raise only that window. However
when we select an application, raise all windows.
A behavioral change required to clearly differentiate these
is that when the window thumbnail list is popped up, it no
longer has the first window selected by default. Therefore
the user has to explicitly press the down arrow or use the
mouse to enter individual window selection mode.
https://bugzilla.gnome.org/show_bug.cgi?id=617959
The ShellGlobal initialization performs several actions like connecting
to the X server, ensuring directories exist, etc., that are problematic
because we were creating the object even when running the binary for
introspection scanning. During compilation we may not even have X11
available in e.g. autobuilder type environments, and it's just a
bad idea to connect even if we do.
Avoid this by deferring creation of the ShellGlobal object
until the plugin is actually started.
Now that we're initializing things later, remove the connection to
screen changes, and initialize cached ShellGlobal state at the point
when the plugin is set. The root pixmap actor is now sized initially
on creation too. Instead of relying on screen-size-changed being
emitted on startup, explicitly invoke _relayout().
https://bugzilla.gnome.org/show_bug.cgi?id=618371
Fetch the names of the user's "subscribed" contacts, and use the
SimplePresence interface to watch for available/away/busy/etc messages
and create notifications for them.
Currently we display notifications when switching between "available"
and "offline"/"extended away", but when switching between "available"
and "away"/"busy" we just add the information to the chat window
without popping up a notification, to avoid spamming the user with
"Bob's screensaver activated" messages.
https://bugzilla.gnome.org/show_bug.cgi?id=611613
This is our convention.
The only exceptions are double quotes for words in comments that give
them a special meaning (though beware that these quotes are not truly
necessary most of the time) and double quotes that need to be a part
of the output string.
It was previously possible to add a workspace above the maximum workspaces
limit by dragging an item to the "add workspace" button or using the middle
mouse button click.
Provide the user with feedback in the info bar when it is not possible to create
a new workspace or remove the current workspace.
https://bugzilla.gnome.org/show_bug.cgi?id=591645
This ensures that we launch the new instance of an application on the newly
added workspace in the grid view, in which we don't make the newly added
workspace active by default.
https://bugzilla.gnome.org/show_bug.cgi?id=591645
Allow using the middle mouse button to open a new instance of an
application on a new workspace. The middle mouse button function
can be achieved by clicking the left and right mouse buttons
together with a two buttons mouse or holding Ctrl while clicking
with a single button mouse.
https://bugzilla.gnome.org/show_bug.cgi?id=591645
Adds the ability to create one or more zoom regions that show magnified or
enhanced views of the desktop. The magnifier provides options for:
* magnification factor,
* four mouse tracking modes common to screen magnifiers,
* positioning the magnified view in one of four screen location, or full screen,
* crosshairs to accentuate the position of the mouse,
* user preferences persistence via GConf (schemas in
.../data/gnome-shell.schemas).
* a DBus API to allow other processes to drive the magnifier as a service.
https://bugzilla.gnome.org/show_bug.cgi?id=595507
Currently there is no way for the user to cancel a workspace drag action,
which means the user has to complete the drag action before and move back
to the other workspace manually afterwards.
So cancel the drag action when the user stops.
https://bugzilla.gnome.org/show_bug.cgi?id=618062
Using a horizontal St.BoxLayout for calendar container forces
width-for-height layout on the St.Table child. Since St.Table
is naturally width-for-height, this can trigger bugs and is,
at best, a bit ineffecient. Use a St.Bin instead since we don't
need any BoxLayout features.
https://bugzilla.gnome.org/show_bug.cgi?id=618104
A single window that does not need to be scaled down, should be centered
and not placed at the bottom.
To avoid blurryness window positions should be pixel aligned.
https://bugzilla.gnome.org/show_bug.cgi?id=617827
Some of the workspace view controls are hidden when the number of
workspaces is one (view toggle button, scroll bar in single view).
Use a fade effect instead of showing/hiding the control abruptly.
https://bugzilla.gnome.org/show_bug.cgi?id=613456
When adding/removing workspaces in linear view, both workspaces and
scrollbar movement are animated, but the size of the scrollbar handle
changes abruptly. It is more consistent to animate the size change
as well.
https://bugzilla.gnome.org/show_bug.cgi?id=613456
Add keys for customizing the panel clock to the gconf schema and make
the clock use them. The settings are copied from gnome-panel's clock
applet, excluding all location/weather/appointment/... keys. In addition,
'internet' is no longer a supported value for the format key.
https://bugzilla.gnome.org/show_bug.cgi?id=600276
In preparation for adding magnification, "uiGroup.patch", organizes the stage
along the following lines:
Stage
*Magnifier
UI group
Window group
Chrome group
Overlay group
Alt tab
App display
Chrome
...
This allows a magnifier actor to clone and magnify the UI group. The magnifier
is a sibling of the UI Group in this stage oraganization -- see the next patch,
"Magnifier.patch".
When a dropped window is accepted by a workspace in linear view, it
is moved to the new workspace. After that, the view zooms back in on
the original workspace, resulting in the moved window disappearing
from the user's sight.
Change this rather unexpected behavior, so that a successful drop
triggers a switch to the new workspace. This also improves consistency
with drops on the (+) area.
https://bugzilla.gnome.org/show_bug.cgi?id=617785
Centralize the update of actor visibilities (overlays, shadows,
off-screen workspaces). Adjust the way scrolling is handled so
that it works correctly with removed workspaces.
https://bugzilla.gnome.org/show_bug.cgi?id=610191
Activate empathy when clicking on a chat icon by asking the
ChannelDispatcher to open the conversation in the default handler.
Also, remove the Approver and Handler for now, since until
telepathy-logger is stable, this means Empathy won't see (and log)
those conversations. This means that empathy's blinky status icon is
back; we'll have to do something else about that.
https://bugzilla.gnome.org/show_bug.cgi?id=611610
While the extension system already uses an XDG location (XDG_CONFIG_HOME),
other components use the deprecated $HOME/.gnome2 directory.
Replace both with XDG_DATA_HOME - the existing data (app usage stats,
looking glass history and extensions) is not migrated to the new location.
https://bugzilla.gnome.org/show_bug.cgi?id=617555
Previously we used a ClutterGroup containing a second ClutterGroup for
the non-visibleInOverview actors. Redo it using a single
ShellGenericContainer, and use set_skip_paint() to hide the
non-overview chrome when the overview is visible.
Also fix up the default values for trackActor().
https://bugzilla.gnome.org/show_bug.cgi?id=608667
If a notification is about to hide, but the user has moved the mouse
towards it, let it stick around for another second (and so on, until
the mouse either reaches the tray and causes it to be pinned, or stops
moving the mouse toward it).
https://bugzilla.gnome.org/show_bug.cgi?id=610071
