[gnome-shell/gnome-3-28] st: Clip StEntry to allocation

[Marco Trevisan <marcotrevi src gnome org>]

commit ba33a05dd27e1c23bfcfbd4ac06fcb0d6e06ebf4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Jun 15 12:23:21 2018 +0000

    st: Clip StEntry to allocation
    
    The default get_paint_volume() implementation will do the union
    of children, and the child ClutterText paint volume may expand
    beyond StEntry size when text overflows.
    
    We actually want all content to be clipped to the StEntry, so
    implement get_paint_volume() and tell it so.
    
    
    (cherry picked from commit 86a520b880808ad18d397ab8e7a7a05b1a8b4e4c)

 src/st/st-entry.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/src/st/st-entry.c b/src/st/st-entry.c
index 42f554c03..f5305c524 100644
--- a/src/st/st-entry.c
+++ b/src/st/st-entry.c
@@ -906,6 +906,13 @@ st_entry_unmap (ClutterActor *actor)
   CLUTTER_ACTOR_CLASS (st_entry_parent_class)->unmap (actor);
 }
 
+static gboolean
+st_entry_get_paint_volume (ClutterActor       *actor,
+                           ClutterPaintVolume *volume)
+{
+  return clutter_paint_volume_set_from_allocation (volume, actor);
+}
+
 static void
 st_entry_class_init (StEntryClass *klass)
 {
@@ -923,6 +930,7 @@ st_entry_class_init (StEntryClass *klass)
   actor_class->allocate = st_entry_allocate;
   actor_class->paint = st_entry_paint;
   actor_class->unmap = st_entry_unmap;
+  actor_class->get_paint_volume = st_entry_get_paint_volume;
 
   actor_class->key_press_event = st_entry_key_press_event;
   actor_class->key_focus_in = st_entry_key_focus_in;