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-rw-r--r--browser/components/shell/nsIGNOMEShellService.idl23
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diff --git a/browser/components/shell/nsIGNOMEShellService.idl b/browser/components/shell/nsIGNOMEShellService.idl
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+/* 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/. */
+
+#include "nsIShellService.idl"
+
+[scriptable, uuid(2ce5c803-edcd-443d-98eb-ceba86d02d13)]
+interface nsIGNOMEShellService : nsIShellService
+{
+ /**
+ * Used to determine whether or not to offer "Set as desktop background"
+ * functionality. Even if shell service is available it is not
+ * guaranteed that it is able to set the background for every desktop
+ * which is especially true for Linux with its many different desktop
+ * environments.
+ */
+ readonly attribute boolean canSetDesktopBackground;
+
+ /**
+ * Returns true if Firefox is set as the default handler for the scheme.
+ */
+ boolean isDefaultForScheme(in AUTF8String aScheme);
+};