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clutter: Add functions to find out mode switch buttons, and their group

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This is done in the upper layers through backend-dependent ways, seems
better to let ClutterInputDevice provide this information.

https://bugzilla.gnome.org/show_bug.cgi?id=771098
This commit is contained in:
Carlos Garnacho
2016-12-28 11:41:23 +01:00
parent 8bcdf9ba61
commit 9d38ffa6e3
4 changed files with 65 additions and 0 deletions
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38
clutter/clutter/clutter-input-device.c
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@@ -2175,6 +2175,44 @@ clutter_input_device_get_n_mode_groups (ClutterInputDevice *device)
return device->n_mode_groups;
}
gboolean
clutter_input_device_is_mode_switch_button (ClutterInputDevice *device,
guint group,
guint button)
{
ClutterInputDeviceClass *device_class;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), FALSE);
g_return_val_if_fail (clutter_input_device_get_device_type (device) ==
CLUTTER_PAD_DEVICE, FALSE);
device_class = CLUTTER_INPUT_DEVICE_GET_CLASS (device);
if (device_class->is_mode_switch_button)
return device_class->is_mode_switch_button (device, group, button);
return FALSE;
}
gint
clutter_input_device_get_mode_switch_button_group (ClutterInputDevice *device,
guint button)
{
gint group;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), -1);
g_return_val_if_fail (clutter_input_device_get_device_type (device) ==
CLUTTER_PAD_DEVICE, -1);
for (group = 0; group < device->n_mode_groups; group++)
{
if (clutter_input_device_is_mode_switch_button (device, group, button))
return group;
}
return -1;
}
const gchar *
clutter_input_device_get_device_node (ClutterInputDevice *device)
{