As a companion to go with the platform_change api,
add a gtk_accessible_get_platform_state() function
that can be used by backends to get the platform
state.
This is in preparation for making entries inherit
their focus states from the text widget within.
Similar to gtk_widget_should_layout(), add a
gtk_accessible_should_present() function that backends can
use to determine whether an accessible should be presented
or not.
Ways to make a widget not presented in a11y:
- hide the widget
- set its role to NONE
- make it have a NULL AT context
We will use this in future to hide the GtkText inside
an entry, since the Text implementation will be done
by the wrapper.
We are determining editable state based on the
accessible role (although we could make it platform
state now), so cover all the roles that we use for
entry wrappers.
Add an enum for 'platform changes' to the at context
change notification mechanism. This will let us pass
along things that ARIA considers 'platform state' such
as focus or editability. The difference between the
platform state and other ARIA states is that we don't
keep the platform state separately in the at context
- backends are expected to just query the widgets.
This is just about avoiding notify listeners for
change notification.
We can use the read-only property, together with the
accessible role, to determine whether to set editable
and read-only states for at-spi. This lets us avoid
directly poking at the widgets.
ATs look at not just the implemented interfaces, but
also the states to decide what to do. It turns out that
the EditableText interface is only used by accerciser
if the editable state is set. So set it.
It is error prone to keep the same conditions in sync
in two places. Instead, just assemble the list of interfaces
as we register objects, and use when GetInterfaces is called.
Apply the Value implementation to the widgets where
we had one in GTK 3: GtkLevelBar, GtkRange, GtkScaleButton,
GtkSpinButton, GtkPaned, GtkProgressBar. To make these
work, the widgets need to set the accessible value properties.
There is some open question here whether the interface
should be implemented on the outer or the inner widget
of the entry-text pairs. For now, our hand is forced,
since only GtkText provides access to the layout that
we need for implementing many of the interface methods.
This is a not-quite-complete implementation of the
Text interface for GtkLabel. The missing parts are
anything around extents and positions, as well as
the ScrollSubstring apis.
This translates relations as far as the match.
I'm not sure yet what we can do about the fact that
atspi expects relations to be bidirectional (ie have
label-for *and* labelled-by) while aria has only one
direction.
It turns out that accerciser depends on this undocumented
method that is not in the xml at all, otherwise interface
sections in the accerciser ui never get enabled.
The ARIA spec defines the mechanism for determining the name of an
accessible element—see §4.3 of the WAI-ARIA spec.
We follow the specification as much as it makes sense for GTK to do
so:
1. if the element is hidden, return an empty string
1. if the element has a labelled-by relation set, retrieve the
label of the related element
2. if the element has a label property set, use the value of
the property
3. if neither labelled-by nor label attributes are set, we use
the role to compute the name:
- for a `range` role, we return the contents of the value of
the `value-text` or `value-now` properties
- for any other role, we return a textual representation of
the GtkAccessibleRole enumeration value
When we create the first AT-SPI context we also need to register the
accessible root on the accessibility bus. The accessible root object is
the main entry point of an accessible application, and it holds the
global state to present to the ATs that connect to the bus.
Since we need to check at run time what kind of AT context to use, we
need a hook into the whole GDK backend machinery. The display connection
seems to be the best choice, in this case, as it allows us to determine
whether we're running on an X11 or Wayland system, and thus whether we
should create a GtkAtSpiContext.
This requires some surgery to fix the GtkATContext creation function, in
order to include a GdkDisplay instance.
Does not do anything, at the moment, but it's going to get filled out
soon.
The backend is selected depending on the platform being compiled in;
since we're using AT-SPI on X11 and Wayland, and we don't have other
accessibility implementations, we currently don't care about run time
selection, but we're going to have to deal with that.
And generate the code for the DBus interfaces.
We don't want the full object manager experience, here, because we're
going to have a single object responding to various interfaces and
remote method calls. For this reason, we're not using the gnome module
in Meson to call gdbus-codegen for us: we need to use the interface info
command line arguments, and those are not available from Meson.
Like we do for GdkX11. We can't use all of the public C API, but we can
expose enough type information to allow non-C developers to actually
check if they are running the Wayland GDK backend or not—plus some
additional Wayland-specific API.
For the various uses of GDK_WINDOWING_QUARTZ, we need to use
alternatives from GDK_WINDOWING_MACOS.
Some minor loss of functionality is here, such as icons sent with
application menus. That can certainly be added back at a future
point.
We are not propagating focus change events, and that is the only
place where we are listening for focus change events. If GtkWindow
does not see focus-in events for its popovers, we end up with
inadvertendly inactive windows.
Fixes: #3240
We were inadvertedly setting the windows min size
to the default size, making it so that you can never
shrink a window below its default size.
Fixes: #3235
The GtkTreeListRowSortKeys implementation doesn't
know how it wants to cache its keys, and just crashes.
Since that is not cool, add a bandaid fix that forces
it to recreate its keys instead. Extra work, but hey,
no crash.
Related: #3228
Don't call gtk_root_get_focus when we already have
the GtkWindowPrivate struct at hand. And use
gtk_window_set_focus to update the focus, like the
old code did.
When a widget is hidden, check harder for the keyboard focus being
contained in that widget, in order to reset it. Portions of the
focus child hierarchy may be outdated at the time, so it is more
reliable to check GtkRoot::focus (i.e. the property we intend to
update here).
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/3214
We were not updating the remembered size at all when
the window is interactively resized, causing it to
snap back to its default size the next time we call
gdk_toplevel_present().
This is a bandaid fix to prevent very broken resizing
behavior, until we have properly redone toplevel sizing.
Fixes: #3076
This is rarely what you want, so lets turn it off
by default.
Update the one place in our demos where we want to
draw a value, add support for this to gtk-builder-tool,
add a test and mention this change in the migration
guide.
Use the data files from https://github.com/milesj/emojibase.git
as source for our Emoji data. Slightly change our data format by
adding a group to each item, in both the Emoji data and in the
setting for recent-emoji.
Install translated versions of the data as separate resource
bundles in $prefix/gtk-4.0/emoji, and load them when appropriate.
Currently, we have data for de, en, es, fr, zh, with data taken
from Unicode 13 and CLDR 13.
Fixes: #950#1511
Make these functions return FALSE if they did not
return the exact position that was requested.
Adapt tests.
Based on a patch by Sebastien Wilmet
Fixes: #506
Rename _gtk_css_print_string to strip the _ and add
an insert_newlines argument to it. Update all callers,
and make the render node serializer insert newlines.
Don't close the Emoji chooser when the Control
key is held while clicking. So you can insert
multiple Emoji without having to reopen the
chooser every time.
Fixes: #1002
Yielding option means that if pango is built as a subproject, it will
take the value of that option from the parent project (e.g. gst-build).
For that to work it must be of the same type, which is "feature" instead
of "boolean" in all GStreamer modules.
Now that the functions that wrap them have gone away from the public
API, we need proper annotations for the virtual functions, otherwise
languages will not have enough information on nullable arguments and
ownership transfer.
Most of the time the snapshot is less than 16 levels deep (did some testing
in gtk-demo), so lets pre-allocate 16 levels of state stack to avoid the
extra allocation most of the time.
A GskGLShader is an abstraction of a GLSL fragment shader that
can produce pixel values given inputs:
* N (currently max 4) textures
* Current arguments for the shader uniform
Uniform types are: float,(u)int,bool,vec234)
There is also a builder for the uniform arguments which are
passed around as immutable GBytes in the built form.
A GskGLShaderNode is a render node that renders a GskGLShader inside a
specified rectangular bounds. It renders its child nodes as textures
and passes those as texture arguments to the shader. You also pass it
a uniform arguments object.
This way the child widgets can rely on the renderer (for example what
type it is) to decide details about how they render (such as if they
should use OpenGL shaders).
This property was only used until now when
there was neither an icon nor a label set,
for arrow direction and popover placement.
Starting with Gtk4, a GtkMenuButton with a
label shows an arrow at the right (in LTR)
of the label. Allow disabling the arrow or
changing its direction using the direction
property, to have a way to restore a Gtk3-
like look or to improve popover placement.
Fixes#2811.
Kinetic scrolling (and begin/end tracking) broke with commit cab1dcb696
since the pointing device used on X11 does not get as much GdkInputSource
granularity as the source device used to have in GTK3.
Actually this is kinda pointless, devices incapable of smooth scroll
should send discrete events, without those devices in the picture, we
want kinetic scroll to apply on every other device capable of smooth
scroll, so just do that.
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/3210
The texture that produce is upside-down, compared to what
GSK expects, so flip things around with a transform.
This fixes the shadertoy demo being upside-down after a
recent fix to avoid downloading and reuploading the texture.
... or gradients or borders or shadows. Instead, ensure that affines
have non-negative scale factors. Otherwise add a transform node.
The only place where this check is not necessary is color nodes, but
special casing them seems not worth it.
"inout" for the parameter ITER passed. This means that bindings would misjudge what
the function does. In the case of guile-gi, it would be misjudged for a predicate,
see gulie-gi bug 87.
Currently, only if PangoFT2 is present and used it is supported
to retrieve the languages that are supported by a particular font.
If we don't have PangoFT2, remove the language filtering and the
sample text selection.
Based on earlier work by Chun-wei Fan, see
https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/2614
With the exception of gtk_buildable_get_id(), those are only used
to construct objects from XML descriptions, which is functionality
internal to GTK.
The API is therefore unlikely to be missed, and keeping it internal
means they can no longer unintentionally shadow object methods in
bindings with less namespacing; for example it's currently ambiguous
whether `infoBar.add_child()` refers to gtk_info_bar_add_child() or
gtk_buildable_add_child().
https://gitlab.gnome.org/GNOME/gtk/-/issues/3191
GtkBuildable's get_name()/set_name() methods may shadow
GtkWidget's methods. Avoid that by renaming the API to
get_buildable_id()/set_buildable_id(), which also reflects
the name of the XML attribute the API refers to.
https://gitlab.gnome.org/GNOME/gtk/-/issues/3191
Drop gtk_column_view_column_new_with_factory and
just make gtk_column_view_column_new accept a
nullable factory. This follows what we've been
doing elsewhere.
Update all callers.
The priv->in_button state that used to be relied upon for pointer
events has been reduced over time to a broken state, since the button
does not track crossing events anymore.
Make the coordinate-based checks apply for pointer events too, besides
touch events. This fixes GtkButton mistakenly emitting ::clicked with
pointer button releases outside the widget.
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/3121
Claiming early makes the contents unable to react to the touch press
event. Do this on GtkGestureDrag::update past a threshold, so the
child widget(s) can claim before the scrolledwindow does.
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/3125
This API is kinda stuck in the GdkEvent days, we now negotiate ownership
of the input sequence via GtkGestures. Remove it as it reflects a way to
work that was not exactly accurate and it will turn plainly wrong soon.
Just always tell the title and cell widgets to
clip their children to the right size. Otherwise
we risk things getting out of sync and unintended
overdraw.
Fixes: #3179
If we just parse a color, like image(#FFF), avoid allocating the
GPtrArray to store images. This happens in Adwaita for background images
of backdrop buttons. We save around 70 GPtrArrays this way.
The centered layout of the font previews don't look appealing
and make it harder to judge the relative width and weight of
the individual styles.
Fixes: #3188
In gtk_tree_view_build_tree with recurse=TRUE, the TEST_EXPAND_ROW
signal might invalidate the child iterator. Getting the iterator after
the signal (instead of before) fixes the issue.
Fixes https://gitlab.com/inkscape/inkscape/-/issues/1879
- Move padding from parent row to child cell.
- Align horizontal sizing of cell with header button.
- Properly support GtkColumnView:show-column-separators.
- Change cell height with and without .data-table.
This was showing up as tweak buttons being visible
when they should not. The code probably relied on
widgets being hidden by default (as they were in
GTK3).
Failure to do so makes the old pointer focus target
'sticky', because we end up ignoring the result of
picking the pointer focus until a motion event comes
in.
Fixes: #3172
Redo the tag insertion function to avoid quadratic
behavior, and at the same time, fix handling of
alpha for color attributes.
Update the copy of this function in gtk4-demo
as well.
