[evince] Save images as png or jpg when the filename has no extensions

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 4a9b54426b47288064f0852635041a2e349f7aab
Author: Patrick Ammann <pammann gmx net>
Date:   Mon Sep 14 14:54:04 2009 +0200

    Save images as png or jpg when the filename has no extensions

 shell/ev-window.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 89d325d..027ddb8 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -5603,6 +5603,15 @@ image_save_dialog_response_cb (GtkWidget *fc,
 		format = get_gdk_pixbuf_format_by_extension (uri);
 	}
 
+	if (format == NULL && g_strrstr (uri, ".") == NULL) {
+		/* no extension found and no extension provided within uri */
+		format = get_gdk_pixbuf_format_by_extension (".png");
+		if (format == NULL) {
+			/* no .png support, try .jpeg */
+			format = get_gdk_pixbuf_format_by_extension (".jpeg");
+		}
+	}
+
 	if (format == NULL) {
 		ev_window_error_message (ev_window, NULL, 
 					 "%s",