In order to build a better transition animation from the lock screen, we
need to split the world into layers, as per this reference:
https://raw.github.com/gnome-design-team/gnome-mockups/master/system-lock-login-boot/system-layers2.png
Everything that pertains to the user's session is in the "session group",
which includes the window group, overview, message tray (for now),
keyboard, OSDs, menus, etc.
For implementation sake, we did not match this mockup exactly. The new layers
look like this, from top to bottom:
* Stage
* Magnifier (clones the uiGroup)
* uiGroup
* overlayGroup
* menuGroup
* panelGroup
* screenShieldGroup
* sessionGroup
* top_window_group
* other boxes (trayBox, keyboardBox, etc.)
* other groups (osdGroup, switcherPopupGroup, etc.)
* overviewGroup
* window_group
* systemGroup
The "session startup" animation now only zooms in the sessionGroup.
The panel is now outside the session, as it needs to sit above the screen
shield. This also means that it's not zoomed in as part of startup. I think
this is OK.
This also means that the lightboxes that the screen shield uses to fade out
the screen have to go in a new group, above the panel. This is known as the
overlayGroup, which has no relation to the old mutter group of the same name.
We also change the screen shield to put the lockDialogGroup in the system
group, and put the lockScreenGroup in the screenShieldGroup, which means
that the layer stacking is correct. Note that we don't hide the session
group in the lock screen yet, which is something I want to do.
Since not a lot of items need to be in the uiGroup anymore, we've removed
the Main.uiGroup fallback; others should use sessionGroup instead, when
appropriate.
This helps take cruft out of the uiGroup, and ensures that components remain
stacked properly on top of each other. In the future, we'll use this group
to ensure that grabs are ordered properly, as well.
If we have the following sequence:
cache.getImageContent({ filename: "foo", cancellable: cancellable1 });
cache.getImageContent({ filename: "foo", cancellable: cancellable2 });
cancellable1.cancel();
Then the second load will complete with "null" as its content, even though
it was never cancelled, and we'll see a blank image. Meanwhile, since the
second load simply appends to the list of callers for the second load,
cancellable2 does absolutely nothing: cancelling it won't stop the load,
and it will still receive onFinished handling.
To prevent this from happening, give the actual load operation its own
Gio.Cancellable, which is "ref-counted" -- only cancel it when all the other
possible callers cancel.
Additionally, clean up the large nested loops by splitting out duplicated
code and other stuff.
https://bugzilla.gnome.org/show_bug.cgi?id=722149
So far we have assumed that whether or not a window is interesting
is static. In general this is the case, but as it is legal for the
underlying properties to change at any time, there are of course
offenders that actually do this (flash I'm looking at ya).
While we used the property to determine whether a window should be
tracked or not, the worst case was showing windows that should be
hidden or missing windows that should be shown.
However as we nowadays base an app's running state on the number of
interesting windows, we need to be more careful in order to avoid
ending up with running apps with no windows.
https://bugzilla.gnome.org/show_bug.cgi?id=723308
The code from shell_window_tracker_is_window_interesting() is equivalent
of MetaWindow's skip-taskbar property, so use it to avoid code duplication.
https://bugzilla.gnome.org/show_bug.cgi?id=723308
The DESKTOP window might not be located at (0,0), in particular
on multi-monitor setups. While we already consider this by setting
the clone's position, we then stuff the clone into a container which
ignores it - meh ...
https://bugzilla.gnome.org/show_bug.cgi?id=723306
If the user mostly uses the All Apps view and uses it as his default view,
we shouldn't reload frequent data after a timeout. Simply do it when the
view is mapped.
https://bugzilla.gnome.org/show_bug.cgi?id=723179
Need to manually dispose of cairo contexts used in gjs with $dispose(),
or the context object will leak. These classes used cairo for drawing but
were missing the dispose call.
https://bugzilla.gnome.org/show_bug.cgi?id=722812
get_categories() returns an unparsed string, not a list of categories.
We need to parse the list by splitting on ';' to deterine whether the
actual 'TerminalEmulator' category is in the list, rather than something
like 'X-GNOME-TerminalEmulator'. It's an edge case, but I need to split
the list properly for the new folders, so I might as well fix this.
https://bugzilla.gnome.org/show_bug.cgi?id=723179
It's a lot simpler and doesn't require us routing the NMRemoteSettings
all the way through. It's still a bit complicated to do this for the
usual connections, so let's drop it for now.
With the lastest ShellApp changes, an app is considered stopped
when the last "interesting" window is closed. However the app
may still track non-interesting windows, so if we unref the
running state on the state transition, we hit an assertion later-on
when trying to remove the non-interesting window.
Fix this by keeping the running state around until the last window
is closed.
https://bugzilla.gnome.org/show_bug.cgi?id=722840
An app should be considered running if it has at least one "interesting"
window, however the code considers an app running if it has at least
one tracked window. This was fine while we were only tracking interesting
windows, but since commit d21aa0d85f this is no longer the case.
So keep track of the number of interesting windows as well and use that
to determine the running state.
https://bugzilla.gnome.org/show_bug.cgi?id=722690
Because we were setting this.background before calling .destroy(),
the call that was meant to destroy the old background was actually
destroying the new one!
https://bugzilla.gnome.org/show_bug.cgi?id=722787
When restricting the switcher popup to the current workspace, we
filter out running apps with an empty window list (namely: no open
windows on the current workspace). However we may end up with an
empty window list even when not restricting items to the current
workspace when all windows of a running app are associated with a
different application via the transient_for hint.
To fix this, just filter out items with an empty window list
unconditionally.
https://bugzilla.gnome.org/show_bug.cgi?id=722434
It is possible to associate an application's window with a different
application using the transient_for hint. However we currently only
consider the hint in get_window_app() and not when making the original
association, which opens the door to some confusing inconsistencies;
for instance, get_window_app() will not necessarily return the same
value for all windows retrieved via shell_app_get_windows().
Fix this by looking at the transient_for hint when making the original
association, not just in get_window_app().
https://bugzilla.gnome.org/show_bug.cgi?id=722434
Without special-casing, our current spacing calculation results in
negative size requests for empty lists, which will trigger a Clutter
assert later.
While the list is never supposed to be empty, bugs happen; crashing
users' systems is the least graceful way of handling this, so don't
do it.
https://bugzilla.gnome.org/show_bug.cgi?id=722434
Using the new list_actions() API in Gio, add entries for static
actions specified in .desktop files in the right-click app menus,
in the dash, app well and search.
https://bugzilla.gnome.org/show_bug.cgi?id=669603
