Commit Graph

6871 Commits

Author SHA1 Message Date
Jonas Ådahl
9f968e7378 appDisplay: Clear animateLater callbacks when unmapping
In some situations we could end up not with lingering 'view-loaded'
handler. This could result in delayed spring animate-in being initiated,
e.g. after a minute after the activities overview was already closed.

Fix this by removing any lingering signal or later handlers when
unmapping.

Fixes: 5c33fe4a0a

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1155


(cherry picked from commit f49b58cf97)
2020-03-31 17:12:35 +00:00
Jonas Ådahl
5c33fe4a0a appDisplay: Don't start animation from the 'paint' signal
Starting the animation from the actor 'paint' signal has various
unwanted consequences, such as sometimes trigger a
clutter_actor_queue_relayout() during the paint phase. One unwanted
consequence was that an offscreen actor effect was disabled during
painting, meaning the effect would begin being active, but later during
the post-paint processing being disabled. The caused said effect to push
an offscreen framebuffer to the paint context, but then just destroy it
instead of popping it. When this happened, we'd end up trying to operate
on a framebuffer that may had been finalized, or not, depending on the
garbage collector. Sometimes, for some users, this caused a segmentation
fault when trying to pop a matrix from the framebuffer matrix stack.

Deal with this more properly, by using the 'view-loaded' signal to wait
with animation until the view is loaded, as well as using MetaLater to
schedule the start of the animation.

For when a view was signalled to be ready, we're in a state where we can
start animation before the next frame as the layout is ready, but when
not, we have to add back the "hack" where we must wait for one frame for
the target icon positions to be up to date. Do this by adding a
MetaLater IDLE callback that starts the animation *after* the next
frame. This also needs the old 'opacity = 0' work around to not show an
incorrect first frame.

Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2418

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1154
2020-03-30 16:24:31 +00:00
Florian Müllner
4f427f4e0d js: Do not set entries' ClutterText:editable property
The property influences the text's (and thus entry's) minimum width[0],
which is generally not what we want. And as we now prevent text from
being entered in non-reactive entries by other means, we can simply
drop it.

[0] https://gitlab.gnome.org/GNOME/mutter/-/blob/master/clutter/clutter/clutter-text.c#L2940

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2423
2020-03-29 22:12:57 +02:00
Florian Müllner
34c4627db9 st/entry: Bind ClutterText reactivity to entry
The text is part of the entry, so it is surprising that it can
still be edited when the entry itself isn't reactive. Address
this by setting up a binding instead of expecting all consumers
to handle the case themselves.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2423
2020-03-29 22:12:57 +02:00
Luke Yelavich
16f4e4dc4c checkbox: Improve accessibility of check boxes for Orca users
Set the label actor, so Orca presents the label text when the check box
has focus. Also change the role to ATK_ROLE_CHECKBOX.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2517
2020-03-29 12:56:33 +00:00
Luke Yelavich
454e3fd39a calendar: Improve the accessibility of the "Do Not Disturb" switch
Set the do not disturb label as the label actor for the do not disturb switch,
so that Orca speaks the do not disturb label when the user moves
keyboard focus to the do not disturb switch.

Also enable toggle mode for the "Do Not Disturb" button and bind it's checked
state to the state property of the switch. This makes sure that Orca presents
thecorrect state of the do not disturb switch to the user.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2508
2020-03-29 11:07:32 +11:00
Florian Müllner
f3fcc4adb7 shellDBus: Return error from ReloadExtension
The method has been deprecated because it generally doesn't (and
can't) work. Clarify that by returning an error instead of
apparently doing nothing.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2510
2020-03-28 22:14:44 +00:00
Jonas Dreßler
867587ef4c keyboard: Hide keyboardBox after destroying the keyboard
It seems there is a weird race condition between Clutter trying to
destroy the keyboard actor and Clutter trying to hide the keyboardBox
container actor: If the keyboardBox is hidden before destroying the
keyboard actor, Clutter doesn't repaint anything and the keyboard
remains visible until something else draws over it.

To fix this issue until we find the underlying Clutter bug, simply
destroy the keyboard actor before hiding the keyboardBox. The order in
which we call these doesn't matter anyway since hideKeyboard(true) hides
the keyboard immediately without an animation.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/1736

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1142
2020-03-28 20:45:32 +00:00
Jonas Dreßler
b68fb35783 layout: Use translation_y of 0 to hide keyboard
Since we show the keyboard using a translation_y of -keyboardHeight, the
keyboard will be moved down far enough to be out of sight by setting
translation_y to 0.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1142
2020-03-28 20:45:32 +00:00
Jonas Dreßler
8dfed7e762 keyboard: Don't include keyboard devices when updating lastDevice
We're dealing with attached keyboards now using the touch_mode property
of ClutterSeat: If a device has a keyboard attached, the touch-mode is
FALSE and we won't automatically show the OSK on touches, also the
touch-mode gets set to FALSE when an external keyboard is being plugged
in, so that also hides the OSK automatically.

With that, we can now ignore keyboard devices when updating the last
used device and no longer have to special-case our own virtual devices.

Because there was no special-case for the virtual device we use on
Wayland now, this fixes a bug where the keyboard disappeared after
touching keys like Enter or Backspace.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2287

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1142
2020-03-28 20:45:32 +00:00
Florian Müllner
97fe4f761a volume: Cancel before checking state
Since commit 2894085c45 we omit sound feedback on volume changes
if something is already outputting sound. Unfortunately that
"something" may be our own feedback (from a previous volume
change).

In that case we do not want to omit the new feedback, so instead
cancel the previous one.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1147
2020-03-28 19:03:12 +01:00
Jonas Dreßler
ba8210ea98 keyboard: Run dispose manually on virtual input device when destroying
We want to make sure any buttons that are still pressed on the virtual
input device used by the OSK are released immediately when destroying
the OSK. Do this by calling run_dispose() on the destroy() function of
the KeyboardController, which makes sure we don't have to wait for the
garbage collection to dispose the object and a still pressed key remains
being pressed until the GC kicks in.

Related: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2287

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/956

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1141
2020-03-28 17:31:04 +00:00
Florian Müllner
de16fe8dff dateMenu: Only use nearest city when appropriate
Since commit 784c0b7e4 we use the name of the nearest city rather
than the weather station, as the latter tend to have unwieldy
and weird names.

However the nearest city may not be that near after all, in which
case the result is again surprising.

Address this by not using the nearest city name unconditionally, but
only if it appears in the station name.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2468
2020-03-28 16:24:03 +00:00
Georges Basile Stavracas Neto
bea34da289 unlockDialog: Only cancel AuthPrompt if it exists
AuthPrompt is created on demand, and this._authPrompt is
expected to be null except on very strictly controlled
occasions. The idle monitor callback isn't one of them.

Check if AuthPrompt exists before cancelling it.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2371
2020-03-27 23:40:08 +00:00
Jonas Dreßler
702417ce83 appDisplay: Only use dragMonitor for one icon at a time
Instead of adding a dragMonitor for every icon in the grid as soon as
one icon is getting dragged, only add a dragMonitor for the icon that is
currently being dragged over (ie. the current drag-target). With a large
number of icons in the iconGrid, this should significantly reduce lags
while dragging.

We can do this by detecting the DnD-entering of an icon or folder using
the `handleDragOver()` callback of drag-targets, adding the dragMonitor
because we know an icon is hovering above the drag-target and then
detecting the DnD-leaving of the drag-target by using the `dragMotion()`
handler, where we remove the dragMonitor again as soon as the
targetActor is no longer our actor (ie. the drag-target).

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/849
2020-03-27 22:38:41 +00:00
Jonas Dreßler
766e9034e2 appDisplay: Remove dragMonitor when FolderIcon is destroyed
While it should be impossible to destroy a FolderIcon while a DnD action
is still going on, there might still be rare cases where this happens
(ie. when a folder is removed because an app got deleted during DnD).

So make sure we're on the safe side here and don't potentially leave
dragMonitors around after the icon is destroyed by removing the
dragMonitor inside the onDestroy handler of the FolderIcon, just like we
do for AppIcons.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/849
2020-03-27 22:38:41 +00:00
Florian Müllner
660a2b6e62 extensionSystem: Require Extensions app for updates
While we don't technically need the app to download and apply
updates, we do require it for notifying the user about available
updates and listing extensions with pending updates.

So instead of intransparently applying updates in the background
without the user noticing, disable updates altogether if the
Extensions app is not installed.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2346
2020-03-27 13:28:41 +00:00
Florian Müllner
cc347bf6d8 extensionDownloader: Stop handling 'blacklist' operation
Blacklist support was added all the way back in commit 1e286e43, but
the code had been defunctional until recently. While uninstalling an
extension that has been blacklisted makes sense off-hand, unfortunately
we don't know if an extension was *actually* blacklisted:

The website returns that operation for any extensions for which it
doesn't find any versions that match the shell version. That is, the
most likely reason is that the user updated to a new GNOME release
which the extension doesn't support yet.

It doesn't look like the website is going to change that behavior any
time soon[0], so drop the 'blacklist' handling for the time being.

[0] https://gitlab.gnome.org/Infrastructure/extensions-web/-/issues/95

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1132
2020-03-27 12:41:57 +00:00
Florian Müllner
26ffeaae47 js: Add missing chain-ups in vfuncs
Commit 55b57421d changed signal handlers to the corresponding vfuncs,
but didn't always chain up as necessary. In most places this doesn't
matter, but at the very least the commit broke activating message list
items via the keyboard.

Add all (hopefully) the missing chain-ups to get the expected behavior
back.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2319
2020-03-27 10:39:58 +01:00
Florian Müllner
01a57206bc messageTray: Don't create notification policy on demand
This was changed in commit 8f15193b4 as a work-around for an ES6
class limitation, but now that Sources are GObject subclasses, we
no longer need to use that somewhat surprising pattern.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1131
2020-03-26 18:52:10 +00:00
Florian Müllner
279072795f messageTray: Only destroy policy after emitting ::destroy
Destroying the policy invalidates it, so accessing it from a
Source::destroy handler (for example to disconnect signal
handlers) currently results in warnings like:

Object .Gjs_ui_messageTray_NotificationApplicationPolicy
(0x7f8c7c0a64a0), has been already deallocated — impossible
to access it.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2238
2020-03-26 18:45:45 +00:00
Michael Catanzaro
83c6b2ab48 Fix prompt for updates on end session dialog
Since PackageKit 1.11.1, the prompt to install updates on the end
session dialog has been (mostly) broken. The problem is that it only
works if PackageKit is running at the time the end session dialog is
opened; otherwise, our GDBusProxy has invalidated all of its properties,
which we read to see if update is possible. We need to autostart
PackageKit before reading its properties to fix this problem. That would
be easy if we were calling a method to see if an update or distro
upgrade were available, but since we're just checking a property, using
cached properties won't suffice. We'll have to manually check the
property value to ensure we autostart PackageKit.

Most of the code is written by Florian. Thanks Florian!

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/2276
2020-03-26 14:45:05 +00:00
Daniel van Vugt
24742f3566 layout: Show system background and animate on the same frame
Previously we'd show the system background and then wait till the
main loop was idle before beginning the shell startup animation.
This resulted in one initial frame that was always just the system
background.

Now we try to get both the system background and the startup animation
begun on the same first frame.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1102
2020-03-25 22:41:54 +00:00
Marco Trevisan (Treviño)
03a46be5c7 telepathyClient: Use proper Object to wrap different tpl messages
In telepathyClient we consider messages both Tpl.TextEvents and
Tpl.Messages, and we manually create JS objects to copy the properties we
care for each one. This may lead to objects not matching the interface we
want.

Instead, use an object with construct-only properties and two factory static
methods to initialize it.

Unfortunately we need to use the ChatMessageClass for the class name or
calling the static methods would trigger a gjs error as per [1].

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1113

[1] https://gitlab.gnome.org/GNOME/gjs/-/issues/310
2020-03-25 22:22:49 +00:00
Marco Trevisan (Treviño)
766288eec1 telepathyClient: Use GObjects based message objects
As per commit b5676a2a5 ChatNotification is a GObject, but I was wrongly
considering that it was using Tp.Message's as children, instead it just
uses custom-built objects to pass information around through signals.

Given gjs can only use GObjects as signal parameters, create a small wrapper
class to hold the ChatNotification messages and use it as signal parameter.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2449

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1112
2020-03-25 21:18:54 +00:00
Florian Müllner
ff844a2a81 main: Do not warn about missing GDM on each login
We now warn on startup if screen locking isn't available, however for
users who choose not to use GDM or logind, repeating the warning on
each login is more annoying than helpful.

Instead, limit the warning to the first login on which the screen lock
became unavailable. That way the notification will still serve the
intended purpose of informing the user, but without being perceived
as nagging.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2432
2020-03-25 20:03:01 +00:00
Florian Müllner
78997cb7eb environment: Hook up touch_file to GFile prototype
We don't usually extend introspected types with our own API, but in
this case it's too tempting to make the helper functions usable with
Gio._promisify() ...

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2432
2020-03-25 20:03:01 +00:00
Michael Catanzaro
ddb85c03c3 endSessionDialog: apply updates by default
Users can still uncheck the box to avoid applying updates, but by
default we will encourage the user to update.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2427
2020-03-25 17:20:16 +00:00
Florian Müllner
35484151ce shell/screenshot: Throw error on failure
Commit da537cda43 moved the Shell.Screenshot API to GIO's async pattern,
but we never set the GError passed to the *_finish() functions and only
indicate failure by returning FALSE.

The expected behavior is to throw an error in that situation, so make sure
we do that.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1123
2020-03-24 11:29:53 +00:00
Florian Müllner
eb51942a05 screenshot: Return error when stream creation fails
The Shell.Screenshot API expects valid output streams for writing the
completed screenshot, not NULL.

Handle this properly by returning an error instead of passing it on
to the screenshot.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1123
2020-03-24 11:29:53 +00:00
Philip Withnall
541847d8b6 remoteSearch: Fix typos in log messages
I have this compulsion to rid the world of the typo ‘DBus’.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/1121
2020-03-23 13:40:39 -03:00
Florian Müllner
34e85342d8 dbusServices/extensions: Take over prefs dialog from app
As outlined earlier, in order to turn the Extensions app into a properly
sandboxed application, we need to split out the extension prefs dialog
and move it elsewhere.

With "elsewhere" being the new Extensions D-Bus service, effectively
turning it into a shell extensions portal.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1106
2020-03-23 15:39:12 +00:00
Florian Müllner
08203c9c1e closeDialog: Remove transitions before resetting dialog
On X11, _onFocusChanged() updates the input region, as well as the
reactive-ness of the dialog's buttons.

That method is not only used as signal handlers (which are correctly
disconnected when the dialog is hidden), it also runs when the "show"
transition completes.

That's a problem if the transition is still ongoing when the dialog is
hidden, as it will then only complete when it is replaced by the "hide"
transition, after the this._dialog has been reset to null, and trying
to access the dialog's buttons results in an error.

Avoid this by explicitly removing all transition on hide before
resetting the dialog.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2467
2020-03-23 15:27:47 +00:00
Florian Müllner
d29e5765ba keyboard: Fix fallback layout when using variants
Commit c1ec7b2ff meant to fall back to the base layout in case
a variant like `fr+oss` is set up, but as we are checking for
'+' on the array rather than the layout name, the fallback only
"works" for a layout that is literally called '+', whoops.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2471
2020-03-23 16:20:38 +01:00
Florian Müllner
61beccf733 unlockDialog: Handle embedded newlines in notifications
Detailed notifications are meant to be single line, just as unexpanded
notification banners. So handle them the same way as in the message
list, and replace embedded newlines by spaces.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2463
2020-03-22 21:19:36 +01:00
Carlos Garnacho
7b1533caf7 padOsd: Add parameter type to keybinding-edited signal
This has a string argument, but none was defined.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/2451
2020-03-20 13:32:56 +01:00
Jonas Dreßler
6893fc3810 dateMenu: Show minutes for timezones that have minutes offset
Some timezones, like the one of Kathmandu don't only have hour-based
timezone offsets, but their timezones are also offset by minutes. So
instead of showing weird values like "+5.8", show the minutes properly
in a format like "+5:45".

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/2438
2020-03-19 21:16:47 +00:00
Jonas Dreßler
13ef33ae0a dateMenu: Clean up timezone offset calculation a bit
Use const variables and change some names to make showing minute-offsets
in the next commit a bit more straightforward.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1107
2020-03-19 21:16:47 +00:00
Florian Müllner
39f61fc41c extensionSystem: Catch errors when updating extensions
Extension updates are installed at startup, so any errors that bubble
up uncaught will prevent the startup to complete.

While the most likely error reason was addressed in the previous commit
(pending update for a no-longer exitent extension), it makes sense to
catch any kind of corrupt updates to not interfere with shell startup.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2343
2020-03-17 14:19:20 +00:00
Florian Müllner
d3939a38a3 extensionDownloader: Remove pending updates with extension
When an extension is uninstalled, there is no point in keeping
a pending update: If the update didn't fail (which it currently
does), we would end up sneakily reinstalling the extension.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2343
2020-03-17 14:19:20 +00:00
Florian Müllner
b97fc02e57 networkAgent: Make searching VPN binaries asynchronous
Doing blocking IO in a graphical UI is bad, doing it in the compositor
is much much worse. So even if handling VPN requests is a relatively
rare event, doing it asynchronously is better.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2386
2020-03-17 14:07:15 +00:00
Florian Müllner
eb7533bbf1 networkAgent: Drop VPN plugin cache
libnm doesn't only search for plugins in the regular VPN plugin directory,
but also in the legacy location and the directory pointed to by the
NM_VPN_PLUGIN_DIR environment variable (if set).

We don't monitor the additional directories, so it's possible for our cache
to become outdated.

Instead of trying to play catch-up with libnm's internals, do what nm-applet
does and use the appropriate API to look up the plugin on each request.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2386
2020-03-17 14:07:15 +00:00
Florian Müllner
69ea038a8f extensionDownloader: Only check server if there's something to update
checkForUpdates() will currently always query the server for updates,
even when passing an empty vardict of installed extensions. We know
there won't be any updates in that case, so avoid a pointless network
request.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1100
2020-03-17 13:56:49 +00:00
Florian Müllner
b80115dc6e dateMenu: Don't ellipsize world clock time/tz
If we need to ellipsize, it should be the location name, not the time
or timezone offset.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1090
2020-03-17 13:44:30 +00:00
Florian Müllner
36b8dcbe07 a11y: Change HC icon theme first
There are two ways for applications to provide a high contrast icon:

 1. install an icon into the HighContrast theme
 2. install a symbolic icon into the default hicolor theme

The latter is preferred nowadays, and implemented in the high-contrast
CSS variant by enforcing the symbolic icon style.

However together with the way we currently enable/disable high-contrast,
this can lead to the following race:
 1. the GTK theme is changed from HighContrast
 2. we reload the default stylesheet
 3. the icon style changes to "regular", so we request a
    new icon from the HighContrast icon theme
 4. the icon theme is changed from HighContrast
 5. we evict existing icons from the cache
 6. we reload icons for the new icon theme; however as we
    find a pending request (from 3), we re-use it
 7. the request from 3 finishes, and we end up with a
    wrong icon in the cache

The simplest fix is to change the icon theme before the GTK theme: Unlike the
theme name, the icon style is encoded in the cache key, so we won't re-use
an old (and incorrect) request in that case.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2414
2020-03-17 12:45:25 +01:00
Florian Müllner
66f9a9df81 js: Always use AppSystem to lookup apps
There is no good reason for bypassing the application cache in
AppSystem and loading .desktop files again.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1093
2020-03-14 20:33:36 +01:00
Florian Müllner
4bfdd677e3 calendar: Adjust for evolution changes
When launching the default calendar application, we special-case
evolution to make sure it starts up with the calendar component.

This is currently broken in two ways:

 - evolution changed its .desktop file to use reverse DNS notation

 - as evolution can now be distributed via flatpak, we can no longer
   assume that 'evolution-calendar.desktop' exists when evolution does
   (even though we ship the .desktop file ourselves, it is considered
   invalid if the executable isn't found)

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1093
2020-03-14 20:31:00 +01:00
Florian Müllner
002160e524 main: Unwatch notification proxy name after auto-start
We only "watch" the 'org.gnome.Shell.Notifications' name to start the
service, not to actually monitor name owner changes; so unwatch the
name once that's done.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2381
2020-03-12 23:29:40 +01:00
Florian Müllner
f2df347ddb main: Activate notification proxy on start
At least for the time being, this looks like the easiest option to
launch the service:

 - we could add a systemd unit, but then we'd need to update the
   RequiredComponents in the fallback session definition as well,
   making it necessary for gnome-shell, gnome-shell-extensions and
   gnome-session to be updated to 3.36.1 in lockstep

 - autostart is problematic as it would make gnome-shell conflict
   with other notification daemons; also autostart is most useful
   with automatic shutdown, which would require tracking signal
   subscriber to determine when the service is unused

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/547
2020-03-12 16:09:27 +00:00
Christian Hergert
f8db5aa106 app-cache: add ShellAppCache for GAppInfo caching
This caches GAppInfo so that the compositor thread does not have to perform
costly disk access to load them. Instead, they are loaded from a worker
thread and the ShellAppCache notifies of changes.

To simplify maintenance, ShellAppCache manages this directly and the
existing ShellAppSystem wraps the cache. We may want to graft these
together in the future, but now it provides the easiest way to backport
changes to older Shell releases.

Another source of compositor thread disk access was in determining the
name for an application directory. Translations are provided via GKeyFile
installed in "desktop-directories". Each time we would build the name
for a label (or update it) we would have to load all of these files.

Instead, the ShellAppCache caches that information and updates the cache
in bulk when those change. We can reduce this in the future to do less
work, but chances are these will come together anyway so that is probably
worth fixing if we ever come across it.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2282
2020-03-11 18:06:15 -07:00