[mutter] clutter: Add clutter_text_has_preedit()

[Carlos Garnacho <carlosg src gnome org>]

commit ac8ee9a08cc06c133196e4109baf76658e839e15
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Dec 21 18:15:07 2017 +0100

    clutter: Add clutter_text_has_preedit()
    
    This function returns TRUE if there is any preedit going on. This method
    will be useful in gnome-shell where similar checks are performed on
    StIMText actors.

 clutter/clutter/clutter-text.c |    8 ++++++++
 clutter/clutter/clutter-text.h |    3 +++
 2 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/clutter/clutter/clutter-text.c b/clutter/clutter/clutter-text.c
index 0f9878f..c0a18fe 100644
--- a/clutter/clutter/clutter-text.c
+++ b/clutter/clutter/clutter-text.c
@@ -6531,3 +6531,11 @@ clutter_text_get_input_purpose (ClutterText *self)
 
   return self->priv->input_purpose;
 }
+
+gboolean
+clutter_text_has_preedit (ClutterText *self)
+{
+  g_return_val_if_fail (CLUTTER_IS_TEXT (self), FALSE);
+
+  return self->priv->preedit_set;
+}
diff --git a/clutter/clutter/clutter-text.h b/clutter/clutter/clutter-text.h
index 9660e65..1b17fbe 100644
--- a/clutter/clutter/clutter-text.h
+++ b/clutter/clutter/clutter-text.h
@@ -313,6 +313,9 @@ ClutterInputContentHintFlags clutter_text_get_input_hints (ClutterText *self);
 CLUTTER_AVAILABLE_IN_MUTTER
 ClutterInputContentPurpose clutter_text_get_input_purpose (ClutterText *self);
 
+CLUTTER_AVAILABLE_IN_MUTTER
+gboolean              clutter_text_has_preedit (ClutterText *self);
+
 G_END_DECLS
 
 #endif /* __CLUTTER_TEXT_H__ */