The g_file_replace_contents_async() API can potentially call fsync() from
the thread calling into it upon completion. This can have disasterous
effects when run from the compositor main thread such as complete stalls.
This is a followup to 86a00b6872 which
assumed (like the rest of us) that the fsync() would be performed on the
thread that was doing the I/O operations.
You can verify this with an strace -e fsync and cause terminal to display
a command completed notification (eg: from a backdrop window).
This also fixes a lifecycle bug for the variant, as
g_file_replace_contents_async() does not copy the data during the operation
as that is the responsibility of the caller. Instead, we just use a GBytes
variant and reference the variant there.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/1050
Implement ClutterActorClass.has_accessible() to ensure that CallyActor does not
recreate accessibles during the removal/destruction of an actor. This relies
on GNOME/mutter!1083 for the ClutterActorClass.has_accessible virtual function.
Running GNOME Shell for about 30 seconds results in a difference between
the two runs.
Before:
ALLOCATED TOTAL FUNCTION
[ 52.2 KiB] [ 0.05%] cally_actor_real_remove_actor
[ 36.3 KiB] [ 0.04%] st_widget_get_accessible
[ 9.8 KiB] [ 0.01%] atk_gobject_accessible_for_object
[ 3.2 KiB] [ 0.00%] g_signal_emit_by_name
[ 2.9 KiB] [ 0.00%] clutter_actor_get_children
After:
ALLOCATED TOTAL FUNCTION
[ 1.8 KiB] [ 0.00%] cally_actor_real_remove_actor
[ 1.1 KiB] [ 0.00%] clutter_actor_get_children
[ 659 bytes] [ 0.00%] g_signal_emit_by_name
Obviously 50KiB isn't a huge savings.
Although fixing things to avoid re-entrancy on destruction can be very useful
from a correctness standpoint.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/2263
ShellStack implements custom focus navigation, and will only ever
navigate into its top-most child. That kind of makes sense as long
as that child is actually visible, but not when it is hidden.
Descend into the stack to look for a focusable child instead.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/2210
If we modify the paint volume to make it larger and include the blur
radius, we should also use the gained size and draw something there.
Since the framebuffers are only the size of the actor to blur, we're not
doing that right now anyway, so remove the vfunc override.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/991
Use the shader for linear sampling and incremental calculation of the
gaussian kernel values as it was implemented by Patrick Walton in
webrender.
The sigma value for the blur (the standard deviation) is calculated by
taking the blur radius and dividing it by 3, this value is used by most
implementations of gaussian blurs since it covers a high percentage of
the gaussian shape.
The linear sampling optimization is implemented by skipping every second
texel (i += 2) in the for-loop that's sampling adjacent texels.
https://github.com/servo/webrender/blob/master/webrender/res/cs_blur.glsl38ec7db6f1https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/991
Floor the downscaled size of the new framebuffer to make sure we don't
initialize a framebuffer with a floating point value that might be
interpreted wrong by `cogl_texture_2d_new_with_size` and end up with a
slightly wrong aspect ratio of the framebuffer.
This fixes situations where the widths or heights of downscaled
framebuffers sometimes miss some pixels at the border.
While at it, remove the `downscale_factor` argument from
`setup_projection_matrix` since that function doesn't need the initial
size of the actor anyway.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/991
The used_scales hash table uses g_double_hash and g_double_equal which
try to read a double from the passed pointers. The pointers however were
pointing to a float, leading to an invalid read.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/974
`gnome-shell-perf-tool` is initially designed to run on X11, using the
`--replace` option which does not work when gnome-shell is a Wayland
compositor.
A solution would be to run `gnome-shell-perf-tool` in place of just
`gnome-shell` to run the entire perf session under Wayland, but the
script `gnome-shell-perf-tool` does not spawn `gnome-shell` as a Wayladn
compositor, so that fails as well.
Add a `--wayland` option to `gnome-shell-perf-tool` so that it can
optionally spawn gnome-shell as a Wayland compositor so the whole perf
tool can be starred from a console with:
```
$ dbus-run-session -- gnome-shell-perf-tool --wayland
```
Alternatively, for testing purposes, it can also be started nested with:
```
$ dbus-run-session -- gnome-shell-perf-tool --nested
```
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/2139https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/941
On Wayland, the display server is the Wayland compositor, i.e.
`gnome-shell` itself.
As a result, we cannot spawn `gnome-shell-perf-helper` before
`gnome-shell` is started, as `gnome-shell-perf-helper` needs to connect
to the display server.
So, instead of spawning `gnome-shell-perf-helper` from the perf tool,
start it from `gnome-shell` itself.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/941
For window-backed apps (read: windows we can't match to a .desktop
file), we use the window's icon property as icon. However there is
no such property on wayland (at least in the protocols we support),
so we end up with a blank actor in that case.
Do better than that, and pick a generic fallback icon instead.
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1779
Notifying the "text" property inside `st_entry_set_text()` misses all
the text changes done by ClutterText itself, including those that happen
on key-presses. Fix that by notifying that property inside the
"notify::text" handler connected to the ClutterText.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/951
Also show the hint actor of an StEntry while the entry is focused but
has no text inside it. This is part of the new dialog and lock-screen
design where there are no labels before entries anymore and labels are
instead shown as a hint-text of the entry.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/944
set_fallback_icon_name() leaks a GIcon by using the set_icon method
which adds a ref to the GIcon without removing its own ref after calling
the method.
Related to https://gitlab.gnome.org/GNOME/gnome-shell/issues/2146
St has the regular abstractions to handle actors that are bigger
than their parent could handle: StScrollable, StScrollView, and
StAdjustment.
However, the only StScrollable implementation available currently
is StBoxLayout, which forces a ClutterBoxLayout as the layout
manager (and relies on it not being unset).
Introduce StViewport, which is a minimal StScrollable implementation
that doesn't rely on any specific layout manager.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/929
Don't try to create a GIcon if the given icon name is empty, it will
lead to failure when loading the icon anyway, instead set the gicon to
NULL just as we do in the `set_gicon()` API when unsetting an icon.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/888
The brightness property of ShellBlurEffect is of float type, but
we are calling g_value_set_int() in the GObject::get_property()
handler, which throws warnings when trying to set the property
via g_object_set() and family.
Use g_value_set_float() instead.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/924
This is a moderately fast two-pass gaussian blur implementation.
It downscales the framebuffer dynamically before applying the
gaussian shader, which cuts down rendering time quite considerably.
The blur shader takes 2 uniforms as input: the blur radius; and
whether to blur vertically or horizontally.
The blur radius is treated as an integer in C land to simplify
calculations. The vertical parameter is treated as an integer by
the shader simply due to Cogl not having proper boolean support
in snippets.
At last, brightness is also added to avoid needing to use an extra
effect to achieve that. Brightness is applied in a different pipeline
than blur, so we can control it more tightly.
ShellBlurEffect also implements a "background" mode, where the contents
beneath the actor are blurred, but not the actor itself. This mode is
performance-heavy.
Related: https://gitlab.gnome.org/GNOME/gnome-shell/issues/1848https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/864
StScrollViewFade depends on st-scroll-view-fade-generated.c, but
that dependency isn't expressed to the build system; we just hope
that the custom target runs before compiling the effect.
Instead, add the generated source to the st target so the dependency
is expressed properly.
(The change from .c to .h is to prevent the file from being both
included and compiled, resulting in a duplicated symbol)
https://bugzilla.gnome.org/show_bug.cgi?id=789937
The gnome-extensions tool code is really independent from the rest of the
code base, and could be used either as part of the gnome-shell build or as
stand-alone project (for example for the extension-ci docker image).
We can actually support both cases by moving the code to a subproject.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/877
The file was generated when importing gnome-extensions-tool from
a standalone repository. It isn't used by the build system, and
really shouldn't have ended up in the repository at all.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/877
Also introduce a "show-peek-icon" property to enable/disable
the peek-password-icon in the password entry. This is useful
in cases where the peeking the password functionality needs
to be avoided.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/619
