Commit Graph

91 Commits

Author SHA1 Message Date
Marco Trevisan (Treviño)
7059e31f6a background: Group 'changed' signal emission
Background is monitoring the whole `org.gnome.desktop.background` gsettings keys
for changes connecting to the non-specialized 'changed' signal and re-emitting
this as-is.
This means that when the background is changed via control-center, we get
multiple 'changed' signal events from GSettings, and for each one of this we
recreate a Background and a BackgroundActor.

Avoid this by using an idle to delay the emission of the 'changed' signal
grouping the events.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/558
2019-06-14 12:24:20 +00:00
Marco Trevisan (Treviño)
a9234f7631 background: Use Garbage Collector to dispose background
The same Meta.Background could be used by multiple instances of background
actors, and so should not be disposed when the actor using it is destroyed.

Instead of calling `run_dispose` directly on it, just nullify the reference
on destroy method, leaving the job of doing the proper disposition to the
gabage collector that keeps the proper reference count on the Meta.Background.

Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/501

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/558
2019-06-14 12:24:20 +00:00
Marco Trevisan (Treviño)
8f1fff1374 background: Don't set background actor sizing and scaling
Mutter BackgroundActor is able do detect this at lower level

https://bugzilla.gnome.org/show_bug.cgi?id=765011
2019-03-01 17:12:53 +00:00
Florian Müllner
fd50b9a45e cleanup: Use destructuring for imports from GI
This is *much* nicer than repetitive "imports.gi" lines ...

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/399
2019-02-09 07:39:20 +01:00
Florian Müllner
bacfdbbb03 cleanup: Port non-GObject classes to JS6 classes
ES6 finally adds standard class syntax to the language, so we can
replace our custom Lang.Class framework with the new syntax. Any
classes that inherit from GObject will need special treatment,
so limit the port to regular javascript classes for now.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/361
2019-01-25 14:02:44 +00:00
Jonas Ådahl
47ea10b7c9 Remove usage of MetaScreen
Remove any usage of MetaScreen, as it has been removed from libmutter
in the API version 3. The corresponding functionality has been moved
into three different places: MetaDisplay, MetaX11Display (for X11
specific functionality) and MetaWorkspaceManager.

https://bugzilla.gnome.org/show_bug.cgi?id=759538
2018-07-06 19:56:19 +02:00
Florian Müllner
3b1330880f cleanup: Use Function.prototype.bind()
When not using arrow notation with anonymous functions, we use Lang.bind()
to bind `this` to named callbacks. However since ES5, this functionality
is already provided by Function.prototype.bind() - in fact, Lang.bind()
itself uses it when no extra arguments are specified. Just use the built-in
function directly where possible, and use arrow notation in the few places
where we pass additional arguments.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:02 +00:00
Florian Müllner
213e38c2ef cleanup: Use arrow notation for anonymous functions
Arrow notation is great, use it consistently through-out the code base
to bind `this` to anonymous functions, replacing the more overbose
Lang.bind(this, function() {}).

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:55:00 +00:00
Florian Müllner
76f09b1e49 cleanup: Use method syntax
Modern javascript has a short-hand for function properties, embrace
it for better readability and to prepare for an eventual port to
ES6 classes.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/23
2018-02-21 13:54:58 +00:00
Ray Strode
94b96f8d97 background: don't leak wall clock when background changes
The background code allocates a GnomeWallClock when its first created,
but neglects to drop a reference to that clock at destroy time.
The undestroyed clocks lead to a timerfd leak that eventually prevents
the shell from functioning.

https://bugzilla.gnome.org/show_bug.cgi?id=791655
2017-12-15 10:57:14 -05:00
Cosimo Cecchi
a432653c87 background: use of CHANGES_DONE_HINT events to avoid reloads
Instead of potentially loading a background mid-way when it changes, and
loading it again for every file monitor event, leverage
CHANGES_DONE_HINT events, which allow us to ignore CREATED and CHANGED
signals from the file monitor.

https://bugzilla.gnome.org/show_bug.cgi?id=747794
2017-07-31 16:17:35 +01:00
Florian Müllner
033277b68f Define externally accessible contants with 'var' instead of 'const'
Just as we did with classes, define other constants that are (or
may be) used from other modules with 'var' to cut down on warnings.

https://bugzilla.gnome.org/show_bug.cgi?id=785084
2017-07-18 21:52:06 +02:00
Florian Müllner
2582d16ca7 Define classes with 'var' instead of 'const'
Any symbols (including class properties) that should be visible
outside the module it's defined in need to be defined as global.
For now gjs still allows the access for 'const', but get rid of
the warnings spill now by changing it.

https://bugzilla.gnome.org/show_bug.cgi?id=785084
2017-07-18 21:52:06 +02:00
Florian Müllner
243dae14ea background: Fix file check
The _animationFile property was removed in commit 8a4c862633 ...
2017-04-11 02:43:07 +02:00
Rui Matos
b1dcea7cf1 background: Disconnect from 'prepare-for-sleep' signal
This signal connection was keeping Background instances from being
garbage collected.

https://bugzilla.gnome.org/show_bug.cgi?id=777934
2017-01-31 13:53:26 +01:00
Rui Matos
9f6f48025d background: Remove a couple of unused variables
Nothing uses these.

https://bugzilla.gnome.org/show_bug.cgi?id=777934
2017-01-31 13:48:11 +01:00
Florian Müllner
ccacb5f6de background: Update animations when coming back from suspend
We currently reload animated backgrounds on timezone changes, but
there are other cases where the time can change unexpectedly and
the background no longer matches the time of day. One case we can
easily handle is when coming back from suspend, so do that.

https://bugzilla.gnome.org/show_bug.cgi?id=773265
2016-10-30 21:10:32 +01:00
Hyungwon Hwang
e72d388a67 background: free MetaBackground explicitly when its MetaBackgroundActor is destroyed
The memory which MetaBackground resides is freed automatically, when its
wrapper object Background is freed by garbage collection. But because the
memory for MetaBackground is huge, changing the background or changing the
background mode repeatedly makes a lot of memory to be in use until garbage
collection runs.

This patch frees the MetaBackground object explicitly when its
MetaBackgroundActor is destroyed which is the moment that the memory in the
object is not used anymore.

https://bugzilla.gnome.org/show_bug.cgi?id=766353

Signed-off-by: Hyungwon Hwang <hyungwon.hwang7@gmail.com>
2016-06-29 13:27:10 +02:00
Florian Müllner
965aedb0bb background: Reload animation on timezone changes
Animated backgrounds are based on a start time in local time - in case
of a timezone change, that time is no longer accurate. To fix, we need
to either make BGSlideShow aware of timezone changes (and notify us to
update the animation), or just reload the animation - timezone changes
should be a rare event, so go with the simpler second option.

https://bugzilla.gnome.org/show_bug.cgi?id=758939
2015-12-02 17:18:39 +01:00
Josselin Mouette
8a4c862633 background: fix a race condition when loading several animations
When loading several animations at the same time, the last call
overrides the result for all of them.

This commit caches all animations separately based on the source's
schemas.

https://bugzilla.gnome.org/show_bug.cgi?id=741453
2015-09-07 06:51:42 +02:00
Michael Biebl
785c90f4b8 background: fix indentation 2015-09-07 06:49:55 +02:00
Giovanni Campagna
0068098996 Background: add a comment for questionable GSettings usage
BackgroundSource relies on Background to watch its own settings.
Add a comment to explain that.

https://bugzilla.gnome.org/show_bug.cgi?id=746509
2015-03-27 13:11:22 -07:00
Rui Matos
260657c0b8 BackgroundCache: plug an Animation object leak
We need to return early in case the animation file is the same,
otherwise we'll create a new Animation object and leak the previous
one.

https://bugzilla.gnome.org/show_bug.cgi?id=739252
2014-10-27 17:50:41 +01:00
Owen W. Taylor
2f5a226bc2 Fix handling of SystemBackground
Since the background rework, SystemBackground is no longer a transparent
actor that you have to stack on top of a solid background, it is an
opaque actor. Fix the color of the background actor, and remove places
where we were setting the background color underneath the system background
and expecting blending - in particular, we can always set no_clear_hint
on the stage.

https://bugzilla.gnome.org/show_bug.cgi?id=738652
2014-10-16 17:16:06 -04:00
Cosimo Cecchi
49c4ba5656 theme: make a GResource
Now that we have all the infrastructure ready, port the theme to a
GResource.

https://bugzilla.gnome.org/show_bug.cgi?id=736936
2014-10-14 18:54:18 -07:00
Cosimo Cecchi
38add2e78b background: port to new GFile MetaBackground API
https://bugzilla.gnome.org/show_bug.cgi?id=736936
2014-10-14 18:51:29 -07:00
Owen W. Taylor
50ac1dd197 background: when a file changes, remove it from the image cache
MetaBackgroundCache doesn't itself use file watches, so when a image
that we are monitoring changes we need to purge it from the cache,
so that when we load it again we get the new image.

https://bugzilla.gnome.org/show_bug.cgi?id=710756
2014-09-24 23:06:07 -04:00
Owen W. Taylor
0992bd41ed background.js: fix updating a BackgroundSource on monitor changes
It was assumed that BackgroundSource objects were always destroyed
on monitor changes because the BackgroundManager objects that hold
references were destroyed, but sequencing of updating of different
BackgroundManager objects meant that was not the case.

Properly update any cached Background objects held by the
BackgroundSource on a change to the monitor layout; in particular this
means updating animations in case they are multi-resolution.
2014-09-12 17:10:04 -04:00
Owen W. Taylor
8096e71c53 Fix problem when background settings change multiple times in rapid succession
The code that cleaned up when a background actor was destroyed tried to access
the Background as backgroundActor.background._delegate but when the destroy
signal is emitted, the MetaBackgroundActor was already disposed and
backgroundActor.background NULL.
2014-09-04 10:07:24 -04:00
Owen W. Taylor
650dea017b Adapt to Mutter background changes
The rewrite of Mutter's background code (see bug 735637) requires
corresponding changes here - we no longer need to layer multiple
MetaBackgroundActors together.

The general strategy is that a BackgroundSource object is created
per GSettings schema, and keeps either one Background/MetaBackground pair,
or, for animation, a Background/Metabackground pair for each monitor.

https://bugzilla.gnome.org/show_bug.cgi?id=735638
2014-09-03 13:45:01 -04:00
Owen W. Taylor
c93767768c perf: fix wallpaper style for overridden background
The code that loads SHELL_BACKGROUND_IMAGE, which is used to load the
performance background was loading it in WALLPAPER mode, not ZOOM
mode. Zoom mode is what we use for the actual GNOME defaultiwallpaper
and what we want to test: the background will be scaled except when
the resolution matches the 2560x1440 default backgrounds.

https://bugzilla.gnome.org/show_bug.cgi?id=735385
2014-08-25 20:28:57 -04:00
Owen W. Taylor
20fc9735fa Add a special background to use for performance testing
Performance testing was producing inconsistent values at different
times in the day since the GNOME default background is animated and
sometimes has a single layer, and sometimes two blended layers.

So we have consistent numbers, install a simple animated background
with GNOME Shell that has 40-year long transition ending in 2030,a
and set an environment variable in gnome-shell-perf-tool so that the
background is override with that background. (The background depends
on files installed by gnome-backgrounds; we assume that the person
running performance tests is doing so within the scope of a full
GNOME install.)

https://bugzilla.gnome.org/show_bug.cgi?id=734610
2014-08-18 10:54:42 -04:00
Giovanni Campagna
cfef107114 background: fix early destroy of SystemBackground
If the SystemBackground is destroyed before loading, we call
removeImageContent() with null, which crashes.
2014-06-26 19:20:17 +02:00
Giovanni Campagna
b742b1eed2 background: fix typo updating images for animated background
We must remove the old image from the cache, not the new one.

This was causing a leak of old (and expensive) background
images, and was causing errors at the end of animations, trying
to destroy the animated background.
2014-06-26 19:20:17 +02:00
Jasper St. Pierre
83cb26d70e js: Adapt to GSettings API change
The 'schema' property has been deprecated for a long time. Even though
this will likely be reverted in glib, let's stop using it.
2014-06-24 15:17:09 -04:00
Bastien Nocera
cd2bd7685a js: Name all the timeouts and idles
With very uninventive names. Names now, good names later.

https://bugzilla.gnome.org/show_bug.cgi?id=727983
2014-04-10 21:08:16 +02:00
Florian Müllner
d6197b0904 background: Destroy redundant backgrounds right after loading
When reacting to background settings changes, we may end up queuing
more than one load. The redundant backgrounds are expected to be
destroyed when the previous background has faded out; however since
commit 933f38390b, the tweened actor is the same for all
consecutive load operations and we end up with a single onComplete
handler, ergo a single destroyed actor.
As new backgrounds are always added to the bottom, we are not only
piling up additional background actors, but break changing backgrounds
more than once, as the correct background ends up being covered by
previously added redundant actors.
Fix this by destroying redundant actors right after loading rather
than waiting for the fade animation to complete.

https://bugzilla.gnome.org/show_bug.cgi?id=726120
2014-03-15 00:43:15 +01:00
Ray Strode
55d1c7e2ab background: fix cancellable issue
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.

Based on work from Jasper St. Pierre <jstpierre@macheye.net>

https://bugzilla.gnome.org/show_bug.cgi?id=722149
2014-03-12 12:15:43 -04:00
Ray Strode
fdf264ff64 background: get rid of nested loop when finishing file loading
At the moment when a file is loaded, we iterate through the list of
pending file loads and ignore any unrelated to the file, then iterate
all the callers of the related file loads and finish them.

In fact, there can only ever be one pending file load related to the
file, and we already know it, so we can avoid the ugly nested loops.

https://bugzilla.gnome.org/show_bug.cgi?id=722149
2014-03-12 12:15:42 -04:00
Ray Strode
e917b7ce0f background: refactor file loading
This commit moves the code around a bit such that the
caller gets allocated up front and then a file load is either
found or created to attach the caller to.

Functionally, the code is the same, it's just now factored in a way
that will make it easier to fix a bug with cancellation later.

https://bugzilla.gnome.org/show_bug.cgi?id=722149
2014-03-12 12:12:47 -04:00
Ray Strode
ec6facb9e7 background: always copy background content when loading into cache
Copying is actually a lightweight operation, so trying to avoid it just adds
code complexity for little gain.

Based on work from Jasper St. Pierre <jstpierre@macheye.net>

https://bugzilla.gnome.org/show_bug.cgi?id=722149
2014-03-12 12:12:47 -04:00
Giovanni Campagna
816f5162f9 BackgroundManager: don't destroy the newly created actor
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
2014-01-22 20:35:02 +01:00
Jasper St. Pierre
d3905734c1 background: Remove unused argument 2014-01-13 20:17:57 -05:00
Jasper St. Pierre
933f38390b background: Don't require passing in a background to _updateBackground()
To make debugging background issues easier.
2014-01-13 17:14:58 -05:00
Florian Müllner
751a3f0e94 js: Use SOURCE_CONTINUE/SOURCE_REMOVE constants in source functions
With support for boolean constants in g-i, we can finally use the
more readable constants instead of true/false.

https://bugzilla.gnome.org/show_bug.cgi?id=719567
2013-12-16 18:27:19 +01:00
Jasper St. Pierre
01f740ce69 background: Don't prematurely remove file monitors
We need to only remove file monitors when there's no other users
of the content...
2013-12-13 11:50:17 -05:00
Jasper St. Pierre
7249b11899 background: Don't silently fizzle out when removing bad content from the cache
If the background is already removed, or we're trying to remove bad content,
this is probably a bug in content accounting, so let us crash so we can fix
the bugs.

https://bugzilla.gnome.org/show_bug.cgi?id=719803
2013-12-03 19:13:12 -05:00
Jasper St. Pierre
4cfb000812 background: Add copied content from pending image loads to the cache
https://bugzilla.gnome.org/show_bug.cgi?id=719803
2013-12-03 19:13:12 -05:00
Jasper St. Pierre
5262a41619 background: Clarify the intent of the code
Stomping on local variables and trying to keep loop state isn't
too fun. Just use a new variable here so we aren't too confused
with what we're doing.

https://bugzilla.gnome.org/show_bug.cgi?id=719803
2013-12-03 19:13:12 -05:00
Jasper St. Pierre
887590730d background: Simplify animation code
https://bugzilla.gnome.org/show_bug.cgi?id=719803
2013-12-03 19:13:12 -05:00