Better handling of keyboard arrows on search window

assets/chooser.glade

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.16.1 -->
+<!-- Generated with glade 3.18.3 -->
 <interface>
   <requires lib="gtk+" version="3.10"/>
   <object class="GtkListStore" id="iconstore">
@@ -21,7 +21,6 @@
     <property name="skip_taskbar_hint">True</property>
     <property name="urgency_hint">True</property>
     <property name="decorated">False</property>
-    <property name="has_resize_grip">False</property>
     <signal name="focus-out-event" handler="onOutFocus" swapped="no"/>
     <signal name="key-release-event" handler="onKeyReleased" swapped="no"/>
     <child>
@@ -59,6 +58,7 @@
             <property name="item_padding">3</property>
             <property name="activate_on_single_click">True</property>
             <signal name="item-activated" handler="onIconActivated" swapped="no"/>
+            <signal name="selection-changed" handler="onSelectionChanged" swapped="no"/>
             <child>
               <object class="GtkCellRendererPixbuf" id="cellrendererpixbuf1"/>
               <attributes>

emojione-picker

@@ -141,6 +141,7 @@ def open_search_window(self, w):
     return
 
 searchresults = None
+selectionChanged = False
 class SearchHandler:
     def onSearchChanged(self, search):
         global searchresults
@@ -181,11 +182,18 @@ class SearchHandler:
         global searchresults
         item_response(self, searchresults[int(index.to_string())])
         icon.get_parent_window().hide()
+    def onSelectionChanged(self, data):
+        global selectionChanged
+        selectionChanged = True
     def onKeyReleased(self, window, event):
+        global selectionChanged
         if event.keyval == Gdk.KEY_Escape:
             window.hide()
         elif event.keyval == Gdk.KEY_Down:
             searchbuilder.get_object("iconview").grab_focus()
+        elif event.keyval == Gdk.KEY_Up and selectionChanged == False:
+            searchbuilder.get_object("search").grab_focus()
+        selectionChanged = False
     def onOutFocus(self, window, data):
         window.hide()