[eog] Add a EogImage::file-changed signal

[Claudio Saavedra <csaavedra src gnome org>]

commit face399a1a1898b9fa6c82456ed85084a23c83f9
Author: Claudio Saavedra <csaavedra igalia com>
Date:   Fri Sep 10 17:51:37 2010 +0300

    Add a EogImage::file-changed signal
    
    This is going to be useful to broadcast changes in the underlying file

 doc/reference/eog-sections.txt |    1 +
 src/eog-image.c                |   23 +++++++++++++++++++++++
 src/eog-image.h                |    4 ++++
 3 files changed, 28 insertions(+), 0 deletions(-)
---
diff --git a/doc/reference/eog-sections.txt b/doc/reference/eog-sections.txt
index ce16d85..0a1593b 100644
--- a/doc/reference/eog-sections.txt
+++ b/doc/reference/eog-sections.txt
@@ -38,6 +38,7 @@ eog_image_apply_display_profile
 eog_image_undo
 eog_image_get_supported_mime_types
 eog_image_is_supported_mime_type
+eog_image_file_changed
 <SUBSECTION Standard>
 EOG_IMAGE
 EOG_IS_IMAGE
diff --git a/src/eog-image.c b/src/eog-image.c
index c069399..6d72b5a 100644
--- a/src/eog-image.c
+++ b/src/eog-image.c
@@ -75,6 +75,7 @@ enum {
 	SIGNAL_THUMBNAIL_CHANGED,
 	SIGNAL_SAVE_PROGRESS,
 	SIGNAL_NEXT_FRAME,
+	SIGNAL_FILE_CHANGED,
 	SIGNAL_LAST
 };
 
@@ -266,6 +267,14 @@ eog_image_class_init (EogImageClass *klass)
 			      G_TYPE_NONE, 1,
 			      G_TYPE_INT);
 
+	signals[SIGNAL_FILE_CHANGED] = g_signal_new ("file-changed",
+						     EOG_TYPE_IMAGE,
+						     G_SIGNAL_RUN_LAST,
+						     G_STRUCT_OFFSET (EogImageClass, file_changed),
+						     NULL, NULL,
+						     g_cclosure_marshal_VOID__VOID,
+						     G_TYPE_NONE, 0);
+
 	g_type_class_add_private (object_class, sizeof (EogImagePrivate));
 }
 
@@ -2212,3 +2221,17 @@ eog_image_get_transform (EogImage *img)
 }
 
 #endif
+
+/**
+ * eog_image_file_changed:
+ * @img: a #EogImage
+ *
+ * Emits EogImage::file-changed signal
+ **/
+void
+eog_image_file_changed (EogImage *img)
+{
+	g_return_if_fail (EOG_IS_IMAGE (img));
+
+	g_signal_emit (img, signals[SIGNAL_FILE_CHANGED], 0);
+}
diff --git a/src/eog-image.h b/src/eog-image.h
index 75181f9..2855983 100644
--- a/src/eog-image.h
+++ b/src/eog-image.h
@@ -112,6 +112,8 @@ struct _EogImageClass {
 
 	void (* next_frame)        (EogImage *img,
 				    gint delay);
+
+	void (* file_changed)      (EogImage *img);
 };
 
 GType	          eog_image_get_type	             (void) G_GNUC_CONST;
@@ -209,6 +211,8 @@ RsvgHandle       *eog_image_get_svg                  (EogImage *img);
 EogTransform     *eog_image_get_transform            (EogImage *img);
 #endif
 
+void              eog_image_file_changed             (EogImage *img);
+
 G_END_DECLS
 
 #endif /* __EOG_IMAGE_H__ */