[nautilus] query-editor: Make IMs process the fake event we generate at first

[Cosimo Cecchi <cosimoc src gnome org>]

commit 378c01ddb6cb833910cf2fcd9d16f87a807df528
Author: Rui Matos <tiagomatos gmail com>
Date:   Sat Mar 23 01:05:37 2013 +0100

    query-editor: Make IMs process the fake event we generate at first
    
    Input methods will typically only process events after getting focus.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=696260

 src/nautilus-query-editor.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-query-editor.c b/src/nautilus-query-editor.c
index d72d81c..a98e70a 100644
--- a/src/nautilus-query-editor.c
+++ b/src/nautilus-query-editor.c
@@ -185,6 +185,8 @@ gboolean
 nautilus_query_editor_handle_event (NautilusQueryEditor *editor,
                                    GdkEventKey         *event)
 {
+       GtkWidget *toplevel;
+       GtkWidget *old_focus;
        GdkEvent *new_event;
        gboolean handled = FALSE;
        gulong id;
@@ -213,6 +215,16 @@ nautilus_query_editor_handle_event (NautilusQueryEditor *editor,
                gtk_widget_realize (editor->details->entry);
        }
 
+       toplevel = gtk_widget_get_toplevel (GTK_WIDGET (editor));
+       if (gtk_widget_is_toplevel (toplevel)) {
+               old_focus = gtk_window_get_focus (GTK_WINDOW (toplevel));
+       } else {
+               old_focus = NULL;
+       }
+
+       /* input methods will typically only process events after getting focus */
+       gtk_widget_grab_focus (editor->details->entry);
+
        old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (editor->details->entry)));
 
        id = g_signal_connect (editor->details->entry, "preedit-changed",
@@ -234,6 +246,10 @@ nautilus_query_editor_handle_event (NautilusQueryEditor *editor,
        handled = (editor->details->got_preedit) || (retval && text_changed);
        editor->details->got_preedit = FALSE;
 
+       if (!handled && old_focus) {
+               gtk_widget_grab_focus (old_focus);
+       }
+
        return handled;
 }