GdkEvent has been a "I-can't-believe-this-is-not-OOP" type for ages,
using a union of sub-types. This has always been problematic when it
comes to implementing accessor functions: either you get generic API
that takes a GdkEvent and uses a massive switch() to determine which
event types have the data you're looking for; or you create namespaced
accessors, but break language bindings horribly, as boxed types cannot
have derived types.
The recent conversion of GskRenderNode (which had similar issues) to
GTypeInstance, and the fact that GdkEvent is now a completely opaque
type, provide us with the chance of moving GdkEvent to GTypeInstance,
and have sub-types for GdkEvent.
The change from boxed type to GTypeInstance is pretty small, all things
considered, but ends up cascading to a larger commit, as we still have
backends and code in GTK trying to access GdkEvent structures directly.
Additionally, the naming of the public getter functions requires
renaming all the data structures to conform to the namespace/type-name
pattern.
This tests was testing gestures by faking an event in the
middle of a window that has a hbox with an expanding image in it.
For me (and I guess this depends on all sorts of issues like whether
CSD is enabled, font sizes, etc) the hbox ended up centered horizontally
but not vertically (probably because of csd at the top), so no events
ever hit the inner widgets.
This is fixed by emitting the events at allocation.x/y of the
hbox, which should contain both the hbox and the image (as it expands).
We use a compilation symbol in our build to allow the inclusion of
specific headers while building GTK, to avoid the need to include only
the global header.
Each namespace has its own compilation symbol because we used to have
different libraries, and strict symbol visibility between libraries;
now that we have a single library, and we can use private symbols across
namespaces while building GTK, we should have a single compilation
symbol, and simplify the build rules.
This is an automated change doing these command:
git sed -f g gtk_widget_set_has_window gtk_widget_set_has_surface
git sed -f g gtk_widget_get_has_window gtk_widget_get_has_surface
git sed -f g gtk_widget_set_parent_window gtk_widget_set_parent_surface
git sed -f g gtk_widget_get_parent_window gtk_widget_get_parent_surface
git sed -f g gtk_widget_set_window gtk_widget_set_surface
git sed -f g gtk_widget_get_window gtk_widget_get_surface
git sed -f g gtk_widget_register_window gtk_widget_register_surface
git sed -f g gtk_widget_unregister_window gtk_widget_unregister_surface
git checkout NEWS*
The event coordinates are (so far) irrelevant to what we are testing here,
just make all events happen in the middle of the window in order to ensure
all widgets receive it. More importantly, avoid using fixed pixel distances,
since we don't get guarantees about window sizes.
Fixes the gestures testsuite on X11.
Now all widgets are mandated to handle the real thing, which means no
pointer events are emulated for the pointer emulating touch. The output
of these tests relied on this fact, so update to the tests handling real
touch events.
Legacy GtkWidget vmethods are now handled on an event controller, which
due to being the very first controller added to every widget, runs in
a different order than the previously hardcoded.
Probably testing legacy events is not really futurible, specially after
we stop installing this legacy controller by default. I'll leave the
choice to remove these specific tests for later though.
Events that get to gtk_main_do_event() have the toplevel GdkWindow
as event->any.window. Also, ensure that coordinates fall within
sensible places of the windows, since those might have shadows,
headerbars and whatnot on wayland.
This tests both a sequence being claimed early to be then denied
(and handled deeper in propagation chain), and a sequence being
claimed late in the capture phase (and thus being cancelled deeper
in the propagation chain)
Before this change, a sequence being claimed deep in the event propagation
chain would make the sequence go denied on every ancestor, regardless of
previous state.
To make things more consistent, only deny the sequence if it was previously
claimed, so the behavior is the same for gesture groups within the widget
than for those outside the widget.
The gestures testsuite has been updated to reflect this new behavior.
It might happen that a gesture claims a sequence before any other gesture
in its group even handled a single event from that sequence. In that case,
ensure the state is set accordingly right when the sequence is handled in
those.
The "group" gesture testcase has been updated to observe this behavior.
