We were not paying enough attention to detail when updating
hover and focus state while generating crossing events. The
invariant that we need to preserve here is that when a widget
has focus or hover, its parent does too.
We basically don't have child surfaces anymore (the last
use in popovers is on the way out). This really needs
to be done in terms of widgets, not surfaces. For now,
just stop walking parent surfaces.
ImmIsIME() doesn't work (always returns TRUE) since Vista.
Use ITfActiveLanguageProfileNotifySink to detect TSF changes,
which are equal to IME changes for us.
Also make sure that IMMultiContext re-loads the IM when keyboard layout
changes, otherwise there's a subtle bug that could happen:
* Run GTK application with non-IME layout (US, for example)
* Focus on an editable widget (GtkEntry, for example)
* IM Context is initialized to use the simple IM
* Switch to an IME layout (such as Korean)
* Start typing
* Since IME module is not loaded yet, keypresses are handled
by a default MS IME handler
* Once IME commits a character, GDK will get a WM_KEYDOWN,
which will trigger a GdkKeyEvent, which will be handled by
an event filter in IM Context, which will finally re-evaluate
its status and load IME, and only after that GTK will get
to handle IME by itself - but by that point input would
already be broken.
To avoid this we can emit a dummy event (with Void keyval),
which will cause IM Context to load the appropriate module
immediately.
When the window gets active / inactive, we
don't propagate events, but just send focus-in / -out
to the current focus_widget. Improve this by updating
its state flags as well.
We were walking the parent chain here, which now
always needs to consider whether it should stop
at roots. Like this one should.
The symptom was that a label with a popup attached to
it would end up with an unintentional focus ring that
would not go away.
Refactor the child allocation machinery, so that the complex allocation
paths are only run when the animation is running.
And in particular, ensure that when no animation is running, the
identity transform is allocated.
When dealing with subclasses of GtkEntry, we were not
getting the property offset that is stored on the GtkEntry
type.
This was showing up as criticals when trying to set
::width-chars on a GtkFileChooserEntry.
This is named gdkconstructor.h to avoid any possible conflicts. This fixes
the current usages of G_HAS_CONSTRUCTORS, as that header is not installed
by glib.
Add boolean properties, is-pointer-focus and
contains-pointer-focus, that track whether the pointer
is in the widget itself or in one of its descendants.
The ::enter and ::leave signals get emitted up and down the
connecting path between the old an the new pointer location.
The signals are less useful if you can't find out where along
the path you are. That is what crossing mode and detail are
about, so add those to the signals.
It does not exist anymore. I'm removing this code now
because our CI tests are using xim and fail due to this.
Eventually, this code should be ported to use a popover.
Check that we get the expected sequences of focus
change events for the nonlinear, inferior and ancestor
cases.
It would be nice to do the same checks for crossing
events, but we have no gtk_window_set_hover().
