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
Whenever an app is installed, the usual routine is
to run 'gtk-update-icon-cache' after installing all
of the app's files.
The side effect of that is that the .desktop file of
the application is installed before the icon theme
is updated. By the time GAppInfoMonitor emits the
'changed' signal, the icon theme is not yet updated,
leading to StIcon use the fallback icon.
Under some circumstances (e.g. on very slow spinning
disks) the app icon is never actually loaded, and we
see the fallback icon forever.
Monitor the icon theme for changes when an app is
installed. Try as many as 6 times before giving up
on detecting an icon theme update.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/661
This was called here just to end up emitting ::installed-changed,
which would trigger other g_app_info_get_all() calls. Cache it here
so it may be reused later on.
Back in the day, there was a proposed system of tracking apps in a
specific context.
The inspiration was that you may have used apps in multiple modes:
Firefox may have been used in both "Programmer Reference" and
"Kitten Videos" contexts. Early user response to the feedback wasn't
too positive - context switching is something that humans have trouble
doing implicitly, let alone explicitly. The old codebase still has a
few remnants of this around; let's finally put them to rest.
Note that we still write out a dummy context tag to the XML file - old
versions of the shell will flat out crash if you don't have one of those
in there, so just leave it in for compatibility sake.
https://bugzilla.gnome.org/show_bug.cgi?id=673767
This fixes the shell not picking updates to the contents of the underlying
.desktop files for application launchers, or when a .desktop file is
overriden by a user-installed one under ~/.local/share/applications
https://bugzilla.gnome.org/show_bug.cgi?id=773636
Cut down on boilerplate by using the (no longer that) new helper
macros. We don't care about breaking ABI in private libraries, so
use G_DECLARE_FINAL_TYPE even where the class struct used to be
exposed in the header, except for types we inherit from ourselves
(obviously) or where the class exposes any vfuncs (where changes
could affect inheritance in extensions).
Both ShellAppSystem and ShellTrayManager are used as singletons, which
significantly reduces the usefulness of inheritance - it's unlikely for
extensions to inherit from them anyway (AND use any of the vfuncs), so
drop them to allow defining the types as final in an upcoming commit.
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
Our StartUpWMClass heuristics use a StartupWMClass -> .desktop ID
mapping built from the list of all installed applications. In case
of multiple .desktop files setting the same StartupWMClass, we
currently simply pick the last one returned by g_app_info_get_all (),
which can be a bit surprising:
A window with WM_CLASS 'emacs', launched through a .desktop file
named 'emacs.desktop' with a StartupWMClass of 'emacs' maps to ...
'emacsclient.desktop'!
Make this case a bit less random by preferring the app info whose
ID matches the StartupWMClass.
https://bugzilla.gnome.org/show_bug.cgi?id=751541
Using a separate property to show when the application is busy rather
than cramming it into the state property makes the code clearer. In most
places we only care if an app is running or not, not whether it is
actually busy.
https://bugzilla.gnome.org/show_bug.cgi?id=736492
Since rebasing our AppSystem on GLib's facilities, we only ever
append to the id-to-app cache. So if an application is uninstalled,
shell_app_system_lookup_app() will still happily return it if it
was cached previously. For instance if a favorite app is uninstalled,
it keeps lurking in the dash until a restart.
To fix, filter out removed apps from the cache when handling
GAppInfoMonitor::installed-changed.
https://bugzilla.gnome.org/show_bug.cgi?id=726414
The hash table must keep a copy of the IDs, because the GAppInfos
are unreferenced (and thus freed) at the end of the function.
This was possibly not a problem if the GAppInfos were referencing
the memory-mapped cache, but it becomes one for regularly parsed
desktop files in ~/.local.
https://bugzilla.gnome.org/show_bug.cgi?id=721039
Rather than scanning all apps for searching, use Ryan's new desktop
file index and the glib support APIs for app searching instead of our
own system.
https://bugzilla.gnome.org/show_bug.cgi?id=711631
While unfortunate that we still have to scan all apps with get_all(),
support for this feature will be short-lived, so hopefully we can drop
it in the future as new apps adapt to the desktop file / app ID
recommendations.
For now, simply scan all desktop IDs.
https://bugzilla.gnome.org/show_bug.cgi?id=711631
Rather than create all ShellApps up-front, create them lazily. We really
had no reason to do this before as we were scanning GMenu to get all the
apps, but doing this can remove a need for get_all, which is slow and
memory-hungry.
We want to transition to a system in the future where we have a desktop
file cache. As we no longer differentiate categories or similar, it no
longer makes sense to have app visibility based on categories. Thus,
we no longer need to use gnome-menus to list all apps. The potential
issue here is reloading all desktop files when new files are created,
but this can be dealt with individually.
The "All Applications" view still uses gnome-menus.
https://bugzilla.gnome.org/show_bug.cgi?id=698486
Since appDisplay.js makes its own GMenu tree, it's not necessary
anymore. This does mean that searches will show apps in NoDisplay
categories, but that's an obscure enough edge case not to matter.
https://bugzilla.gnome.org/show_bug.cgi?id=698486
This does remove support for legacy prefixed app infos with
subdirs, but since we want to remove support for the menu spec,
let's not even bother.
https://bugzilla.gnome.org/show_bug.cgi?id=698486
It's a broken method when it comes to giving us a useful GDesktopAppInfo,
and it's hard to fix libgmenu properly, so simply recreate the app info
using the desktop file ID that libgmenu has.
We want to move away from gnome-menus eventually, so the simple
utility method isn't really worth keeping around. Reimplement it
in the one place that uses it.
https://bugzilla.gnome.org/show_bug.cgi?id=698486
This is needed to handle applications that are converted to
reverse dns notation, if their application ID includes capital
letters (as it is often the case for DBus names)
https://bugzilla.gnome.org/show_bug.cgi?id=706252
Chromium (but not google-chrome) has a StartupWMClass in the desktop
file, so we must match the instance part first to have chrome
web apps working.
Also, we must take care of apps without a wm_class or instance at
all.
https://bugzilla.gnome.org/show_bug.cgi?id=673657
Some applications (such as most Java apps, as well as Chrome Web apps) ship
with desktop files that have the wrong name, but whose StartupWMClass
field contains the right value. Therefore first check that key, against
both the class and instance part of WM_CLASS, and only use the filename
if nothing else works.
https://bugzilla.gnome.org/show_bug.cgi?id=673657
As we use g_slist_prepend for efficiency when building the list
of results before ordering it, we need to make sure we traverse
the list of previous results backwards so that it's built in
the same order.
https://bugzilla.gnome.org/show_bug.cgi?id=693936
gnome-control-center is planning on removing its own tree in the
future. Since it already installs these applications into
/usr/share/applications, just use this for now.
https://bugzilla.gnome.org/show_bug.cgi?id=692483
