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-rw-r--r--plugins/image-inline/image-inline.c38
1 files changed, 32 insertions, 6 deletions
diff --git a/plugins/image-inline/image-inline.c b/plugins/image-inline/image-inline.c
index 12568eecca..5ea1070afb 100644
--- a/plugins/image-inline/image-inline.c
+++ b/plugins/image-inline/image-inline.c
@@ -259,19 +259,45 @@ size_allocate_cb (GtkHTMLEmbedded *embedded,
}
static void
-mouse_wheel_scroll_cb (GtkWidget *img_view, GdkScrollDirection direction, ImageInlinePObject *image_object)
+mouse_wheel_scroll_cb (GtkWidget *image_view,
+ GdkScrollDirection direction,
+ ImageInlinePObject *image_object)
{
+ GtkOrientation orientation;
+ GtkScrollType scroll_type;
GtkHTML *html;
gint steps = 2;
- g_return_if_fail (image_object != NULL);
- g_return_if_fail (image_object->object.format != NULL);
- g_return_if_fail (image_object->object.format->html != NULL);
-
html = image_object->object.format->html;
+ switch (direction) {
+ case GDK_SCROLL_UP:
+ orientation = GTK_ORIENTATION_VERTICAL;
+ scroll_type = GTK_SCROLL_STEP_BACKWARD;
+ break;
+
+ case GDK_SCROLL_DOWN:
+ orientation = GTK_ORIENTATION_VERTICAL;
+ scroll_type = GTK_SCROLL_STEP_FORWARD;
+ break;
+
+ case GDK_SCROLL_LEFT:
+ orientation = GTK_ORIENTATION_HORIZONTAL;
+ scroll_type = GTK_SCROLL_STEP_BACKWARD;
+ break;
+
+ case GDK_SCROLL_RIGHT:
+ orientation = GTK_ORIENTATION_HORIZONTAL;
+ scroll_type = GTK_SCROLL_STEP_FORWARD;
+ break;
+
+ default:
+ g_return_if_reached ();
+ }
+
while (steps > 0) {
- g_signal_emit_by_name (html, "scroll", (direction == GDK_SCROLL_DOWN || direction == GDK_SCROLL_UP) ? GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL, (direction == GDK_SCROLL_DOWN || direction == GDK_SCROLL_RIGHT) ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD, 2.0, NULL);
+ g_signal_emit_by_name (
+ html, "scroll", orientation, scroll_type, 2.0, NULL);
steps--;
}
}