[gthumb] fixed crash when going fullscreen with no image in the file list

[Paolo Bacchilega <paobac src gnome org>]

commit 47287b1c24a303d5c8d7fe3f5179251a1a740084
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Jul 3 21:24:08 2011 +0200

    fixed crash when going fullscreen with no image in the file list
    
    [fixed bug]

 gthumb/gth-browser.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gthumb/gth-browser.c b/gthumb/gth-browser.c
index eb06806..555a11b 100644
--- a/gthumb/gth-browser.c
+++ b/gthumb/gth-browser.c
@@ -5982,7 +5982,10 @@ gth_browser_fullscreen (GthBrowser *browser)
 	}
 
 	if (browser->priv->current_file == NULL)
-		gth_browser_show_first_image (browser, FALSE, FALSE);
+		if (! gth_browser_show_first_image (browser, FALSE, FALSE)) {
+			browser->priv->fullscreen = FALSE;
+			return;
+		}
 
 	_gth_browser_create_fullscreen_toolbar (browser);
 	g_list_free (browser->priv->fullscreen_controls);
@@ -6000,10 +6003,10 @@ gth_browser_fullscreen (GthBrowser *browser)
 	gth_window_show_only_content (GTH_WINDOW (browser), TRUE);
 
 	browser->priv->properties_on_screen = FALSE;
-	gth_viewer_page_show_properties (browser->priv->viewer_page, browser->priv->properties_on_screen);
 
 	gtk_window_fullscreen (GTK_WINDOW (browser));
 	if (browser->priv->viewer_page != NULL) {
+		gth_viewer_page_show_properties (browser->priv->viewer_page, browser->priv->properties_on_screen);
 		gth_viewer_page_show (browser->priv->viewer_page);
 		gth_viewer_page_fullscreen (browser->priv->viewer_page, TRUE);
 		gth_viewer_page_show_pointer (browser->priv->viewer_page, FALSE);