We need to free the queued context list in dispose
if we didn't get to register the contexts, and we also
need to free the list properly when we do get to
register them.
This showed up in valgrind as leaked GList structs.
CI is mostly interested in GTK not introducing compiler warnings, other
submodules like Wayland might have their own and that shouldn't hinder
CI testing of GTK.
Disable -Werror for the wayland submodule, and let it be fixed independently
at some point.
When GTK_EVENT_CONTROLLER_SCROLL_DISCRETE is set, accumulate deltas also
for mouse scroll so a high-resolution mouse wheel click behaves in the
in the same manner as a low-resolution mouse wheel click.
Starting with the Wayland protocol wl_pointer >= 8, discrete axis
events have been deprecated in favour of high-resolution scroll event.
Add a listener for high-resolution scroll events and, for backwards
compatibility, handle discrete events as discrete*120.
Instead of calculating the discrete scroll deltas in
GtkEventControllerScroll, move that code to the event constructor and
access the precalculated values using gdk_scroll_event_get_deltas.
Refactor, no functional changes.
Starting with Linux Kernel v5.0 two new axes are available for
mice that support high-resolution wheel scrolling: REL_WHEEL_HI_RES and
REL_HWHEEL_HI_RES.
Both axes send data in fractions of 120 where each multiple of 120
amounts to one logical scroll event. Fractions of 120 indicate a wheel
movement less than one detent.
The 120 magic number is a copy of the Windows API, so this new
constructor can be used both in Linux >= 5.0 and Windows >= Vista.
Commit adba0b97 fixed missed pointer crossings by using a helper function that
was already present and looked like did everything that was needed. However
this function was oriented to keyboard focus and it also did update the related
widget state. Doing these changes on pointer-based crossing was misuse, and
could cause weird interactions with keyboard focus management.
Fix this by using gtkmain.c gtk_synthesize_crossing_event() that is in fact
oriented to pointers.
Fixes: adba0b97 (gtkwindow: Synthesize pointer crossing events on state changes)
Closes: https://gitlab.gnome.org/GNOME/gtk/-/issues/5094
Instead of passing an event and figuring out coordinates from it, pass
directly the toplevel coordinates so that we can use this outside event
handling.
All callers have been updated to pass the coordinates, in practical effects
they were already based on the GtkNative.
The inner loop in gtk_paned_set_focus_child() tries to find the
topmost GtkPaned, however, if the `w` variable ends up becoming
NULL after bubbling up the entire GtkWidget hierarchy, this loop
never breaks.
Check for NULL in this loop.
Closes https://gitlab.gnome.org/GNOME/gtk/-/issues/5094
c68247f63b introduced a scroll multiplier,
intended to be significantly lower than the GTK 4.6 behavior but higher
than 1. However, it was _higher_ than 4.6, since 4.6 also had a permanent
1/10 multiplier in GDK, so the cited multiplier values were really 6.4 and
9.7.
