Util.ensureActorVisibleInScrollView takes care of the potential scroll view fade
effect in order to compute the scroll offset, reading the ScrollViewFade's
`vfade-offset` property. This was correctly working until gnome 3.30 cycle.
However such property isn't defined now because since gjs 1.54, it can only
fetch introspected properties and St.ScrollViewFade was considered a private API
not exposed by gir.
Fix this by also introspecting st-scroll-view-fade sources.
Not being considered private anymore, install the header.
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1061
Updating the :first/:last-child pseudo classes can result in a lot
of unnecessary style changes when bulk-adding children to a container,
as every child ends up as the new last child.
Address this by deferring the style change to an idle, so we only do
the work once for the actual first and last child.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/529
Images are loaded either with a supplied fixed size, or using the "native"
dimensions of the file. When creating a content image from the loaded data,
we currently simply apply this directly to the preferred size.
This works usually fine: GdkPixbuf will always keep the aspect ratio, so
if only one dimension is provided, the other will be adjusted accordingly:
Loading a 200x200 image with a requested size of (100, -1) will result in
a 100x100 content image.
There is a catch though: GdkPixbuf will only scale *down* to the requested
size, no up. That is, loading a 100x100 image with a requested size of
(200, -1) will result in a 100x100 pixbuf. But as we assume that the pixbuf
size matches the requested size, the image content ends up with 200x100.
Fix this by explicitly handling the case where only one size was supplied,
and make the other dimension take the aspect ratio into account
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/525
The parameters that may affect the icon on ::style-changed are more size
related than visual (we listen to icon theme changes for the latter). It
makes sense to just update the icon if the size came out different.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/524
With a high enough amount of actors, there may be enough theme nodes and
signal connections on StTheme::custom-stylesheets-changed that
g_signal_handlers_disconnect_by*() on dispose becomes expensive, this may
become a surprisingly hot spot in StWidget::style-changed.
Keep the handler ID around and use g_signal_handler_disconnect() to avoid
linear lookups for the matching func/data.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/524
Compare painting/geometry of old and new paint nodes, so it's ensured to
be only emitted on actual style changes. Emission still must be propagated
through to children, though.
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/1153
Actors themed through CSS should ideally get sizes and positions that
conform to the "pixel grid". A notorious example is the panel that has a
height of 1.86em. On unchanged font settings and hidpi that translates to
55px, which leaves the workarea with "half pixels" that hidpi wayland
applications don't know how to fully cover.
If the requested height is a multiple of the scale factor, the workarea
and maximized applications can then work on full pixels.
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/issues/91
The same code for reading the current magnifier state is repeated in both
shell-recorder, shell-screenshot and magnifier itself.
So to move this inside a property of st-settings so that we can refer to it
all over the places removing duplications.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/473
With StImageContent, the meaning of passing -1 as size parameter changed
from "load the image at its preferred size" to "abort the session". It
is therefore no longer possible to just load the image and then have it
scaled by applying a CSS size to the texture's parent.
Setting the size from CSS is useful though, so to still allow that, fall
back to the actor's size (which can be determined by the style).
https://gitlab.gnome.org/GNOME/gnome-shell/issues/1027
We need this to run `test-theme`, otherwise when run as part of the
build tests it fails like:
error while loading shared libraries: libmutter-cogl-4.so.0: cannot
open shared object file: No such file or directory
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/442
The executable is assumed to be run from $top_srcdir/src, which is
essentially an autotools left-over (it's where the program ended
up with srcdir == builddir).
Now with meson, its actual srcdir makes more senses.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/419
Clutter no longer hard-codes a resolution of 96 DPI (although that's
still the default), so any assertions of sizes for physical units
may be off.
Fix this by setting up the test environment according to the
assumptions.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/419
While mapping the :first/:last-child pseudo classes directly to the
ClutterActor:first-child/:last-child properties allows for an easy
implementation, it is unexpected that rules can appear to not have
an effect because the selected child is hidden. GTK's behavior of
applying the classes to visible children makes much more sense, so
change our implementation to do the same.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/312
It might happen that the target clutter actor that we return on call
of st_texture_cache_load_sliced_image might be destroyed while the
loading task is still running. To protect from this, let's connect
to "destroy" signal and when this happens we use a cancellable to
stop the task.
This allows to safely reuse the return value of this function to
cancel the execution and avoiding that load_callback is called
even for a request that is not anymore under our control.
https://bugzilla.gnome.org/show_bug.cgi?id=765011
When loading an actor for a sliced image actor, we can now use the
REQUEST_CONTENT_SIZE request-mode for the actor since we the content image
has now a predictable size and thus we can be sure that the size will be applied
taking care of the resource scale.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/5
Create StImageContent as a simple ClutterImage with preferred width/height
properties in order to be able to use explicit sizing when creating clutter
contents that will be applied to actors whose size depends on the content itself.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/5
Instead of just passing a scale when getting a cached icon, pass both a
'paint_scale', the scale of which the icon will be painted on the
stage, and a 'resource_scale', the scale of the resource used for
painting.
In effect, the texture size will use the scale 'paint_scale * resource_scale'
in a ceiled value while the size of the actor will use 'paint_scale' when
determining the size.
this would load a bigger texture, but the downscaling would keep the visual
quality.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/5https://bugzilla.gnome.org/show_bug.cgi?id=765011
Create the surfaces for background shadows at scaled sizes and then draw on them
using logical coordinates, by setting the surface device scale accordingly.
Use the said surface scale when generating the actual shadow cairo pattern
but in such case, to reduce the number of code changes, is better to work in
absolute coordinates, and to do so:
1) Create a temporary shadow-spec copy with scaled values to absolute sizes
2) Invert the scaling on the shadow matrix
3) Do the actual painting in absolute coordinates
4) Set the shadow matrix scaling back to the logical coordinates.
Finally scale down the created shadow pattern surface size when painting it,
applying again a reverse scale to the matrix.
https://bugzilla.gnome.org/show_bug.cgi?id=765011https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/5
Pass resource-scale to drawing phase, and use it to create texture
surfaces scaled with the widget current scaling.
Also redraw by default widgets when the resource scale changes.
https://bugzilla.gnome.org/show_bug.cgi?id=765011
A fractional resource scale would mean we never use the fast path for
creating the shadow, because we'd cast the int to a float before
comparing, which would never match.
Instead compare the expected texture size with the source texture, to
actually potentially trigger the fast path.
https://bugzilla.gnome.org/show_bug.cgi?id=765011
The fade shader will draw the fade effect up until the border pixel. If
we set the bottom right coordinate to the outer edge of the pixel we
might end up not drawing the fade effect on all of the pixels. This
could for example happen if one logical pixel (clutter stage pixel)
consists of more than one physical pixel.
https://bugzilla.gnome.org/show_bug.cgi?id=765011
This commit makes StWidget manage the scale of which its associated
resources should be multiplied with. The resource scale is calculated
by clutter, and is retrieved by clutter_actor_get_resource_scale(). Due
to the resource scale not always being available, the getter may fail,
and the actual widget that draws the content will have to deal with
this situation.
As the resource scale depends on where on the stage the widget is drawn,
the resource scale will in general be available once the widget is
mapped.
https://bugzilla.gnome.org/show_bug.cgi?id=765011
Since commit deec0bf2550, the texture cache is based on ClutterImage
rather than ClutterTexture. As ClutterImage (like all ClutterContent)
is only concerned with painting, it doesn't influence the size of the
actor it is added to at all, and the returned actor will now stay at
size 0x0 after the image has been loaded.
Set up the actor to follow the content's size instead, to get closer
to the previous behavior.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/402
