When verification failed using a specific authentication service we're
currently restarting the whole user authentication system, which leads
to lots of unneeded operations (reinitializing a new user verifier proxy,
restarting all the gdm workers with the relative PAM modules and so on).
And this makes also debugging of login problems more complicated, given
we're cluttering the journal with repeated data.
However, at reauthentication failure GDM has already set up for us an
user verifier that we can use reuse to start only the service that had a
failure. So when possible, just start a new service instead of rebooting
the whole authorization process.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
When retrying the authentication we should make sure that all the
previously initiated services are stopped in order to begin a new
authentication session with all the configured services.
Unfortunately at the current state we only dispose the currently used
user verifier, but we don't make it to stop all the relative gdm workers
and then they'll stay around potentially blocking any further usage of
them (as it happens with the fingerprint one, that has unique access to
the device).
So, cancel the currently running authentication before starting a new
one if we're explicitly retrying.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
In case a background service such as the fingerprint authentication
fails to start we'd just mark the whole authentication process as
failed.
Currently this may happen by just putting a wrong password when an user
has some fingerprints enrolled, the fingerprint gdm authentication
worker may take some time to restart leading to a failure and this is
currently also making the password authentication to fail:
JS ERROR: Failed to start gdm-fingerprint for u: Gio.DBusError:
GDBus.Error:org.freedesktop.DBus.Error.Spawn.Failed:
Could not create authentication helper process
_promisify/proto[asyncFunc]/</<@resource:///org/gnome/gjs/modules/core/overrides/Gio.js:435:45
### Promise created here: ###
_startService@resource:///org/gnome/shell/gdm/util.js:470:42
_beginVerification@resource:///org/gnome/shell/gdm/util.js:495:18
_getUserVerifier@resource:///org/gnome/shell/gdm/util.js:405:14
async*_openReauthenticationChannel@resource:///org/gnome/shell/gdm/util.js:378:22
async*begin@resource:///org/gnome/shell/gdm/util.js:194:18
_retry@resource:///org/gnome/shell/gdm/util.js:561:14
_verificationFailed/signalId<@resource:///org/gnome/shell/gdm/util.js:584:30
_emit@resource:///org/gnome/gjs/modules/core/_signals.js:133:47
finishMessageQueue@resource:///org/gnome/shell/gdm/util.js:268:14
_queueMessageTimeout@resource:///org/gnome/shell/gdm/util.js:273:18
_queueMessageTimeout/this._messageQueueTimeoutId<@resource:///org/gnome/shell/gdm/util.js:288:65
Given that background services are ignored even for queries or any kind
of message, we should not fail the authentication request unless the
default service fails.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
When a verification session has failed we may want to wait for the user
to have completed all the waiting queries and to have read all the
incoming messages, however during such time an user verifier should
not be allowed to queue further messages to the UI, as we're about to
completely stop the identification or start a new one.
Unfortunately this is not true because we're still connected to the
identifier signals, and so we may still show messages.
This is particularly true when using the fingerprint PAM module as it
may restart the authentication while we're in the process of stopping
it.
So, keep track of all the signals we've connected to, and disconnect on
verification failed and during cancel/clear operations.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
Answering a query may be delayed to the moment in which we've not any
more messages in the queue, however this case can also happen just after
we've cleared the UserVerifier and in such case we'd have nothing to
answer, but we currently throw an error:
JS ERROR: Exception in callback for signal: no-more-messages:
TypeError: this._userVerifier is null
answerQuery/signalId<@resource:///org/gnome/shell/gdm/util.js:249:17
_emit@resource:///org/gnome/gjs/modules/core/_signals.js:133:47
finishMessageQueue@resource:///org/gnome/shell/gdm/util.js:266:14
_clearMessageQueue@resource:///org/gnome/shell/gdm/util.js:301:14
clear@resource:///org/gnome/shell/gdm/util.js:223:14
cancel@resource:///org/gnome/shell/gdm/util.js:205:18
reset@resource:///org/gnome/shell/gdm/authPrompt.js:482:32
cancel@resource:///org/gnome/shell/gdm/authPrompt.js:569:14
vfunc_key_press_event@resource:///org/gnome/shell/gdm/authPrompt.js:128
So handle this case more gracefully keeping track of the current
cancellable and checking whether it is still valid before trying to answer
a query or do a delayed action.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
As per previous commit the user can cancel an ongoing authentication via
Escape key and that will always send the user back to the clock view in
lockscreen or user-selection view in login prompt.
However, we can be a little more permissive and don't switch view to be
able to restart the authentication without further action.
To avoid this to be abused though, we consider the user verification
cancellation via escape key to be a "soft-failure", so once the
configured "allowed-failures" gsettings value has been reached, we'd
just act as before, ignoring any further request (until we don't get
back to the user auth view).
In this way we still make brute-force attacks harder to do, while still
giving the well-behaving user some ability to fix mistakes.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
Escape key is supposed to cancel a verification, however if the user
already hit Enter to begin the authentication the Escape key won't work
until the verification completed.
This may be quite inconvenient when an user did a typo while writing and
wants to cancel the already started auth.
So, while authenticating (or in general while the entry is unsensitive)
give the key focus to the authpromt itself so that we can still get the
input events and cancel an user action.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
When a cancel event in the user lockscreen happens we first emit a reset
signal and immediately a cancelled one.
This lead to start a new gdm worker for each enabled authentication
method and then immediately to stop it.
As per the previous commit, we don't have anymore dangling gdm workers
around, but still we should not even start a new one in such case.
So, when the user explicitly cancelled the authentication session, first
emit a cancelled event and only emit a reset event with a begin request
if we are outside the lockscreen.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
When we cancel an user authentication via Escape key or cancel button on
AuthPrompt we reset the view and we emit a 'cancelled' signal that leads
to destroying the auth prompt and the user verifier.
However, the verifier may still have an operation in progress and its
completion may take some time (as in the case of gdm-fingerprint), but
we just leave the gdm worker running until its pam module completes
(potentially never) clearing and disposing its handle.
So, instead of just clearing the verify, actually cancel and clear it.
In case the user verifier is set, clearing the relevant data will happen
anyway as part of the cancel() call.
Ideally this would have been handled by gdm itself, but unfortunately we
can't fix it there because the verifier itself is a class generated by
gdbus-codegen, so we can't handle this automatically on disposal nor we
can automatically monitor when the caller proxy is stopped on our side.
Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3654
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1622>
Scaling the icons all the way from/to 0 is a relatively big transition,
which is fairly distracting when playing simultaneously for multiple
previews after reaching the WINDOW_PICKER state.
Instead, tie the scale to the overview state itself, so that the animations
runs in parallel.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1654>
Back when the Dash was vertical, the size of each item was calculated
solely based on the available height. After making the Dash horizontal,
this was swapped by the available width. However, when the height of the
Dash decreases, the current code results in never scaling them up ever
again.
Fix that by making ControlsManagerLayout explicitly pass the maximum Dash
sizes. Remove the 'notify::width' handler that served the same purpose.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3651
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1638>
Remove the dummy applications page that was introduced as a temporary
step. Replace the 'page-changed' and 'page-empty' signals with a 'search-active'
boolean property.
Remove ViewSelector.ViewsPage since it's now unused, and all the page handling
mechanism. At last, since we don't use any ShellStack features anymore, simply
make it a St.Widget with a ClutterBinLayout as the layout manager.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1667>
Add a "screenshot-taken" signal from the screenshot service's internal C
implementation, and use that to trigger the camera flash visual effect
and the click sound, allowing them to run in parallel with the PNG
compression instead of waiting until the file is complete to start.
This significantly improves perceived latency on high res setups such as
4K, 5K, or dual 4K screens.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/512
Co-authored-by: Brion Vibber <bvibber@wikimedia.org>
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1658>
On my local jhbuild setup some local stuff is not set up and
there's no pictures folder. This fixes a regression where it
blew up instead of saving to the home dir in this situation.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1658>
In addition to disabling the overlay when the state is not 1,
disable it also when not in the active workspace.
Make the Workspace class track the workspace's active state,
and resync the overlays when it changes.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1645>
The behavior of workspaces is different depending on whether
the overview is in window picker state, or app grid state.
When in window picker state, clicking on adjacent workspaces
should only activate them, without hiding the overview; and
clicking on the active workspace hides the overview. When in
app grid state, clicking on a workspace must always hide the
overview.
Pass the overview adjustment to Workspace, and leave overview
if the overview state is bigger than WINDOW_PICKER.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1645>
The overview transition consists of getting the initial and final
states of the overview adjustment, derivating various other internal
states from them (such as the fit mode, opacities, translations, etc),
and finally interpolating the allocation boxes.
When interpolating between the fit mode, WorkspacesView uses the current
allocation box to derivate the SINGLE and ALL fit mode boxes. However,
that creates a curved path during overview transitions. What we really
want to do here is calculate the fit mode box relative to the corresponding
overview state. For example:
+----------------+----------+------------------------+
| Overview State | Fit Mode | Workspaces geometry |
+----------------+----------+------------------------+
| HIDDEN | SINGLE | Cover entire screen |
| WINDOW PICKER | SINGLE | Between minimap & Dash |
| APP GRID | ALL | 15% screen height |
+----------------+----------+------------------------+
Using the table above as the reference, when the overview transitions
between WINDOW PICKER and APP GRID, we must interpolate between
(SINGLE fit mode @ between minimap & Dash) and (ALL fit mode @ 15% screen
height). That way, we always interpolate the final boxes, which corrects
the odd path that workspaces follow during this transition.
Make the WorkspacesView of the primary monitor use these cached boxes
when the overview is in the middle of a transition, and the fit modes of
the initial and final state differ, to calculate the workspaces positions.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
It makes more sense in a spatial overview that the app grid
comes and goes to somewhere in the screen, instead of fading
in and out into the void.
Make the app grid rise from the bottom of the screen.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
Move AppDisplay, WorkspacesDisplay, and ThumbnailsBox from ViewSelector to
ControlsManager. This allows to always allocate the correct size for AppDisplay,
and will enable for a plethora of further improvements. The end goal is to
completely remove ViewSelector, and let ControlsManager handle the layout of
everything that's visible in the overview.
For now, replace the apps page with a dummy actor in ViewSelector.
Adjust various callers around the codebase to not access the ViewSelector
directly from the overview anymore.
Bind the opacity of the primary workspace to WorkspaceDisplay's opacity. This
allows removing the parent opacity hack in place, which will be done by the
next commit.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
Now that Overview is able to ease into any state, be it window
picker or app grid, we can move this ViewSelector method to
Overview itself, which is its rightful place to live.
Remove ViewSelector.showApps(), and make all callers call
Main.overview.show(ControlsState.APP_GRID). Also make sure the
show apps button is correctly toggled.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
Next commits will requires ControlsManager to animate to different
states, depending on how Overview is called. Add a new 'state'
parameter to ControlsManager's, and OverviewActor's animateToOverview,
and Overview.show().
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
Remove Workspace.zoomTo/FromOverview(), they're unused now. Rename
everything up to ControlsManager to prepareToEnter/LeaveOverview(),
since these classes don't run the animation anymore.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
WorkspacesView uses the floating layout when the overview is in window
picker mode, and the session layout when the overview is in app grid
mode. Up until now, the fit mode adjustment was used to derive the
workspace mode, but it is incomplete as it doesn't have the full range
of workspace states.
Make ViewSelector cascade the overview adjustment to WorkspacesDisplay,
and use the overview adjustment itself to derive the workspace mode.
Extra workspaces don't have to account for the fit mode, and thus are
basically a clamp(state, 0, 1) of the overview state. However, don't
call animateTo/FromOverview() anymore, since they ease the workspace
mode adjustment.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1624>
