Check the text handle role, instead of looking for the other handle
visibility. The other handle may be invisible during selection mode
(e.g. pointing to offscreen contents). This fixes both this code
switching to cursor mode out of the blue, and possible crashes later
on as this handle might be hidden in the process, while its own event
controller is handling events on the parent surface.
The gtk_text_view_set_handle_position() function called some lines above
takes care of handle visibility already, also accounting for other
conditions (e.g. whether the handle points to contents onscreen).
Forcibly showing handles here misbehaves if the handle should stay hidden,
and somewhat expensively as it involves creating and throwing a native
surface every time.
With the scrolledwindow drag gesture not claiming the sequence immediately,
we end up placing the cursor (and undoing the previous selection) each time
we scroll.
There is already handling too short drags in ::drag-end, so let this code
handle touchscreens as well.
If the gesture becomes captured (e.g. from a parent scrolledwindow), we
leave some things in the air. Clean these up properly. This is recurrent
with touch scroll.
In destruction paths of a focused entry, the IM context might first
end up detached from its widget, then destroyed. This currently prevents
the IM context from detaching itself from the GtkIMContextWaylandGlobal.
Make it do so when unsetting the client widget, so the IM context gets
properly unfocused before destruction.
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/3176
In wayland, popup positioning and event handling are doubly async.
This makes it unreliable to figure out parent surface coordinates
out of the popup position and the events received. This results in
jumpy text handles there.
The best way to deal with parent surface coordinates is to handle
the events there. Make the handles transparent to input, and make
the drag gesture be set up on the parent widget's native.
The gesture is set up in the capture phase, setting it on the native
(as opposed to the parent widget) achieves a feeling similar to it
being a distinct surface, as it should take precedence over other
gestures in the emission chain (e.g. scrolledwindows).
As everything is in parent widget's native's coordinates, the drag
handles become smooth again.
The intended use case of the "presentation" role is
| […] when an element is used to change the look of the page but does not
| have all the functional, interactive, or structural relevance implied
| by the element type, or may be used to provide for an accessible
| fallback in older browsers that do not support WAI-ARIA.
One of the examples is, literally:
| An element whose content is completely presentational (like a spacer
| image, decorative graphic, or clearing element);
Which fits perfectly for the GtkTreeExpander's "indent" builtin icon
widget.
Mark gtk_drag_icon_create_widget_for_value with
GDK_AVAILABLE_IN_ALL, since it is meant to be public.
Also, clarify the documentation a bit.
Fixes: #3325
We are doing too much work during the construction phase of the
AT-SPI backend for GtkATContext. Instead of having the AtSpiContext
register itself at construction time, let's add explicit realize
and unrealize operations, and connect the ATContext realization to the
rooting operation of a GtkWidget.
The magnifier in entries is magnifying the GtkText
widget, which does not draw any background itself.
Therefore, we give the magnifier a background, to
make things look as expected.
Fixes: #3318
Install a log writer function that is a bit simpler than
the default GLib log writer, and does not put PIDs and
timestamps in the output, so we can compare easily in
our testsuite.
It doesn't make much sense to set this in per-directory
meson files, since that makes use use different logging
facilities in different parts of the project. Set it
globally.
We are setting the value to TRUE initially, but
the property had a declared default of FALSE.
This is messing up the simplification of .ui files
with gtk4-builder-tool, since it thinks it can
omit can-target properties when it really can't.