Return -1 for AtkText::get_caret_offset on failure

See merge request !666

Gdk api cleanups

See merge request !669

We can drop the double suffix now.

It is no longer used.

We should always use the double variant of the api.

We should always use the double variant.

We can drop the double suffix now.

It is no longer used.

We should always use the double variant of this api.

We should always use the double variant of this api.

Drop the _double suffix, now that the int version is gone.

Not used anymore.

Use the double version directly.

Use the double variant instead.

This was used to interpret the position passed
to gtk_window_move. Since that is gone, gravity
is no longer useful.

This api is going away.

These functions operate with global coordinates,
which are not available on Wayland.

It is going away. The search popup needs to be
redone using popovers.

It is going away.

It is going away.

This does not make sense.

Change the all the begin_drag and begin_move apis in
GdkSurface and GtkWindow to expect surface coordinates.

Update the x11 implementation to translate to root
coordinates where it matters. Wayland is ignoring the
coordinates anyway.

Update broadway for gtk4

See merge request !667

When sending render nodes from the client to the daemon we add an id,
and whenever we're about to re-send the entire tree node we instead
send the old id. We track all the nodes for the previous frame
of the surface this way.

Having the id on the daemon side will allow us do to much better deltas.

We want to delay some rendering, and to make that safe we need to correctly
refcount the use of blob uris for the textures so that we don't unref
it while something is scheduled to use it.

Since nodes are now cached we just store the fallback as a
texture in a hashtable indexed by the node. If its unused for
5 frames we drop it.

This is what the X11 code does.

This is nicer in general, but also will let us do floats more sanely.

This can be helpful when debugging broadway.

These are trivial anyway

CI can be slower than your normal dev machine so give it a bit more time