1 files changed, 34 insertions, 0 deletions
diff --git a/widget/gtk/nsIImageToPixbuf.h b/widget/gtk/nsIImageToPixbuf.h
new file mode 100644
index 0000000000..0faa1c6e84
--- /dev/null
+++ b/widget/gtk/nsIImageToPixbuf.h
@@ -0,0 +1,34 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef NSIIMAGETOPIXBUF_H_
+#define NSIIMAGETOPIXBUF_H_
+
+#include "nsISupports.h"
+
+// dfa4ac93-83f2-4ab8-9b2a-0ff7022aebe2
+#define NSIIMAGETOPIXBUF_IID \
+{ 0xdfa4ac93, 0x83f2, 0x4ab8, \
+  { 0x9b, 0x2a, 0x0f, 0xf7, 0x02, 0x2a, 0xeb, 0xe2 } }
+
+class imgIContainer;
+typedef struct _GdkPixbuf GdkPixbuf;
+
+/**
+ * An interface that allows converting the current frame of an imgIContainer to a GdkPixbuf*.
+ */
+class nsIImageToPixbuf : public nsISupports {
+    public:
+        NS_DECLARE_STATIC_IID_ACCESSOR(NSIIMAGETOPIXBUF_IID)
+
+        /**
+         * The return value, if not null, should be released as needed
+         * by the caller using g_object_unref.
+         */
+        NS_IMETHOD_(GdkPixbuf*) ConvertImageToPixbuf(imgIContainer* aImage) = 0;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsIImageToPixbuf, NSIIMAGETOPIXBUF_IID)
+
+#endif