clutter: Add function to find out the number of modes for a pad group
This is obtained in backend-dependent ways in the upper layers, seems better to let ClutterInputDevice provide this information. https://bugzilla.gnome.org/show_bug.cgi?id=771098
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@ -147,6 +147,10 @@ gint clutter_input_device_get_n_strips (ClutterInputDev
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CLUTTER_AVAILABLE_IN_ALL
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gint clutter_input_device_get_n_mode_groups (ClutterInputDevice *device);
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CLUTTER_AVAILABLE_IN_ALL
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gint clutter_input_device_get_group_n_modes (ClutterInputDevice *device,
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gint group);
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CLUTTER_AVAILABLE_IN_ALL
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gboolean clutter_input_device_is_mode_switch_button (ClutterInputDevice *device,
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guint group,
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