[evince] shell: Add subtitle to the headerbar

[Jose Aliste <jaliste src gnome org>]

commit c69501361e978c3a437d44c0a80cea7932654497
Author: José Aliste <jaliste src gnome org>
Date:   Fri Jul 25 17:22:09 2014 -0400

    shell: Add subtitle to the headerbar
    
    Split the title into "PDF Title" in the title of the header bar
    and "filename" on the subtitle of it.

 shell/ev-window-title.c |   15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/shell/ev-window-title.c b/shell/ev-window-title.c
index 540a3a1..98ff0c2 100644
--- a/shell/ev-window-title.c
+++ b/shell/ev-window-title.c
@@ -108,7 +108,9 @@ static void
 ev_window_title_update (EvWindowTitle *window_title)
 {
        GtkWindow *window = GTK_WINDOW (window_title->window);
+       GtkHeaderBar *bar = GTK_HEADER_BAR (ev_window_get_toolbar (EV_WINDOW (window)));
        char *title = NULL, *password_title, *p;
+       char *subtitle = NULL, *title_header = NULL;
 
        if (window_title->document != NULL) {
                gchar *doc_title;
@@ -130,13 +132,12 @@ ev_window_title_update (EvWindowTitle *window_title)
 
        if (title && window_title->uri) {
                char *tmp_title;
-               char *filename = get_filename_from_uri (window_title->uri);
+               subtitle = get_filename_from_uri (window_title->uri);
 
                ev_window_title_sanitize_title (window_title, &title);
-               tmp_title = g_strdup_printf ("%s — %s", filename, title);
-                g_free (title);
-                g_free (filename);
+               tmp_title = g_strdup_printf ("%s — %s", subtitle, title);
 
+               title_header = title;
                 title = tmp_title;
        } else if (window_title->uri) {
                title = get_filename_from_uri (window_title->uri);
@@ -152,6 +153,10 @@ ev_window_title_update (EvWindowTitle *window_title)
        switch (window_title->type) {
        case EV_WINDOW_TITLE_DOCUMENT:
                gtk_window_set_title (window, title);
+               if (bar && title_header && subtitle) {
+                       gtk_header_bar_set_title (bar, title_header);
+                       gtk_header_bar_set_subtitle (bar, subtitle);
+               }
                break;
        case EV_WINDOW_TITLE_PASSWORD:
                password_title = g_strdup_printf (_("%s — Password Required"), title);
@@ -161,6 +166,8 @@ ev_window_title_update (EvWindowTitle *window_title)
        }
 
        g_free (title);
+       g_free (subtitle);
+       g_free (title_header);
 }
 
 EvWindowTitle *