[libdazzle] suggestion: adjust for margin of entry if any

[Christian Hergert <chergert src gnome org>]

commit 33c68229acf35fd84f0174f3be2bc8f4629775d6
Author: Christian Hergert <chergert redhat com>
Date:   Wed Nov 28 10:44:17 2018 -0800

    suggestion: adjust for margin of entry if any

 src/suggestions/dzl-suggestion-entry.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/src/suggestions/dzl-suggestion-entry.c b/src/suggestions/dzl-suggestion-entry.c
index f611798..fc67fc4 100644
--- a/src/suggestions/dzl-suggestion-entry.c
+++ b/src/suggestions/dzl-suggestion-entry.c
@@ -811,7 +811,10 @@ dzl_suggestion_entry_default_position_func (DzlSuggestionEntry *self,
                                             gboolean           *is_absolute,
                                             gpointer            user_data)
 {
+  GtkStyleContext *style_context;
   GtkAllocation alloc;
+  GtkStateFlags state;
+  GtkBorder margin;
 
   g_return_if_fail (DZL_IS_SUGGESTION_ENTRY (self));
   g_return_if_fail (area != NULL);
@@ -823,6 +826,15 @@ dzl_suggestion_entry_default_position_func (DzlSuggestionEntry *self,
 
   area->y += alloc.height;
   area->height = 300;
+
+  /* Adjust for bottom margin */
+  style_context = gtk_widget_get_style_context (GTK_WIDGET (self));
+  state = gtk_style_context_get_state (style_context);
+  gtk_style_context_get_margin (style_context, state, &margin);
+
+  area->y -= margin.bottom;
+  area->x += margin.left;
+  area->width -= margin.left + margin.right;
 }
 
 /**