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clutter: Add function to find out the number of modes for a pad group

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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
This commit is contained in:
Carlos Garnacho 2016-12-28 11:44:27 +01:00
parent 9d38ffa6e3
commit d6fc41b73e
4 changed files with 39 additions and 0 deletions
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2
clutter/clutter/clutter-device-manager-private.h
View File

@ -158,6 +158,8 @@ struct _ClutterInputDeviceClass
gboolean (* is_mode_switch_button) (ClutterInputDevice *device,
guint group,
guint button);
gint (* get_group_n_modes) (ClutterInputDevice *device,
gint group);
};
/* Platform-dependent interface */

19
clutter/clutter/clutter-input-device.c
View File

@ -2175,6 +2175,25 @@ clutter_input_device_get_n_mode_groups (ClutterInputDevice *device)
return device->n_mode_groups;
}
gint
clutter_input_device_get_group_n_modes (ClutterInputDevice *device,
gint group)
{
ClutterInputDeviceClass *device_class;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), 0);
g_return_val_if_fail (clutter_input_device_get_device_type (device) ==
CLUTTER_PAD_DEVICE, 0);
g_return_val_if_fail (group >= 0, 0);
device_class = CLUTTER_INPUT_DEVICE_GET_CLASS (device);
if (device_class->get_group_n_modes)
return device_class->get_group_n_modes (device, group);
return 0;
}
gboolean
clutter_input_device_is_mode_switch_button (ClutterInputDevice *device,
guint group,

4
clutter/clutter/clutter-input-device.h
View File

@ -147,6 +147,10 @@ gint clutter_input_device_get_n_strips (ClutterInputDev
CLUTTER_AVAILABLE_IN_ALL
gint clutter_input_device_get_n_mode_groups (ClutterInputDevice *device);
CLUTTER_AVAILABLE_IN_ALL
gint clutter_input_device_get_group_n_modes (ClutterInputDevice *device,
gint group);
CLUTTER_AVAILABLE_IN_ALL
gboolean clutter_input_device_is_mode_switch_button (ClutterInputDevice *device,
guint group,

14
clutter/clutter/evdev/clutter-input-device-evdev.c
View File

@ -180,6 +180,19 @@ clutter_input_device_evdev_is_mode_switch_button (ClutterInputDevice *device,
return libinput_tablet_pad_mode_group_button_is_toggle (mode_group, button) != 0;
}
static gint
clutter_input_device_evdev_get_group_n_modes (ClutterInputDevice *device,
gint group)
{
struct libinput_device *libinput_device;
struct libinput_tablet_pad_mode_group *mode_group;
libinput_device = clutter_evdev_input_device_get_libinput_device (device);
mode_group = libinput_device_tablet_pad_get_mode_group (libinput_device, group);
return libinput_tablet_pad_mode_group_get_num_modes (mode_group);
}
static void
clutter_input_device_evdev_class_init (ClutterInputDeviceEvdevClass *klass)
{
@ -192,6 +205,7 @@ clutter_input_device_evdev_class_init (ClutterInputDeviceEvdevClass *klass)
klass->keycode_to_evdev = clutter_input_device_evdev_keycode_to_evdev;
klass->update_from_tool = clutter_input_device_evdev_update_from_tool;
klass->is_mode_switch_button = clutter_input_device_evdev_is_mode_switch_button;
klass->get_group_n_modes = clutter_input_device_evdev_get_group_n_modes;
obj_props[PROP_DEVICE_MATRIX] =
g_param_spec_boxed ("device-matrix",