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mutter/clutter/clutter/clutter-device-manager.c
Olivier Fourdan 2f072af02b clutter/input-pointer-a11y: Restore pointer a11y on resume 
When suspending, the devices are removed and the virtual device
associated with the corresponding core pointer is disposed.

Add the pointer accessibility virtual device to the core pointer
on resume to restore pointer accessibility on resume if enabled.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/761
2019-09-02 17:27:17 +00:00

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2009 Intel Corp.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Emmanuele Bassi <ebassi@linux.intel.com>
*/
/**
* SECTION:clutter-device-manager
* @short_description: Maintains the list of input devices
*
* #ClutterDeviceManager is a singleton object, owned by Clutter, which
* maintains the list of #ClutterInputDevice<!-- -->s.
*
* Depending on the backend used by Clutter it is possible to use the
* #ClutterDeviceManager::device-added and
* #ClutterDeviceManager::device-removed to monitor addition and removal
* of devices.
*
* #ClutterDeviceManager is available since Clutter 1.2
*/
#include "clutter-build-config.h"
#include "clutter-backend-private.h"
#include "clutter-debug.h"
#include "clutter-device-manager-private.h"
#include "clutter-enum-types.h"
#include "clutter-marshal.h"
#include "clutter-private.h"
#include "clutter-stage-private.h"
#include "clutter-virtual-input-device.h"
#include "clutter-input-device-tool.h"
#include "clutter-input-pointer-a11y-private.h"
struct _ClutterDeviceManagerPrivate
{
/* back-pointer to the backend */
ClutterBackend *backend;
/* Keyboard a11y */
ClutterKbdA11ySettings kbd_a11y_settings;
/* Pointer a11y */
ClutterPointerA11ySettings pointer_a11y_settings;
};
enum
{
PROP_0,
PROP_BACKEND,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST];
enum
{
DEVICE_ADDED,
DEVICE_REMOVED,
TOOL_CHANGED,
KBD_A11Y_MASK_CHANGED,
KBD_A11Y_FLAGS_CHANGED,
PTR_A11Y_DWELL_CLICK_TYPE_CHANGED,
PTR_A11Y_TIMEOUT_STARTED,
PTR_A11Y_TIMEOUT_STOPPED,
LAST_SIGNAL
};
static guint manager_signals[LAST_SIGNAL] = { 0, };
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (ClutterDeviceManager,
clutter_device_manager,
G_TYPE_OBJECT)
static void
clutter_device_manager_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ClutterDeviceManager *self = CLUTTER_DEVICE_MANAGER (gobject);
ClutterDeviceManagerPrivate *priv = clutter_device_manager_get_instance_private (self);
switch (prop_id)
{
case PROP_BACKEND:
priv->backend = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
}
static void
clutter_device_manager_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ClutterDeviceManager *self = CLUTTER_DEVICE_MANAGER (gobject);
ClutterDeviceManagerPrivate *priv = clutter_device_manager_get_instance_private (self);
switch (prop_id)
{
case PROP_BACKEND:
g_value_set_object (value, priv->backend);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
}
}
static void
clutter_device_manager_class_init (ClutterDeviceManagerClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
obj_props[PROP_BACKEND] =
g_param_spec_object ("backend",
P_("Backend"),
P_("The ClutterBackend of the device manager"),
CLUTTER_TYPE_BACKEND,
CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
gobject_class->set_property = clutter_device_manager_set_property;
gobject_class->get_property = clutter_device_manager_get_property;
g_object_class_install_properties (gobject_class,
PROP_LAST,
obj_props);
/**
* ClutterDeviceManager::device-added:
* @manager: the #ClutterDeviceManager that emitted the signal
* @device: the newly added #ClutterInputDevice
*
* The ::device-added signal is emitted each time a device has been
* added to the #ClutterDeviceManager
*
* Since: 1.2
*/
manager_signals[DEVICE_ADDED] =
g_signal_new (I_("device-added"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
CLUTTER_TYPE_INPUT_DEVICE);
/**
* ClutterDeviceManager::device-removed:
* @manager: the #ClutterDeviceManager that emitted the signal
* @device: the removed #ClutterInputDevice
*
* The ::device-removed signal is emitted each time a device has been
* removed from the #ClutterDeviceManager
*
* Since: 1.2
*/
manager_signals[DEVICE_REMOVED] =
g_signal_new (I_("device-removed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 1,
CLUTTER_TYPE_INPUT_DEVICE);
manager_signals[TOOL_CHANGED] =
g_signal_new (I_("tool-changed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
_clutter_marshal_VOID__OBJECT_OBJECT,
G_TYPE_NONE, 2,
CLUTTER_TYPE_INPUT_DEVICE,
CLUTTER_TYPE_INPUT_DEVICE_TOOL);
/**
* ClutterDeviceManager::kbd-a11y-mods-state-changed:
* @manager: the #ClutterDeviceManager that emitted the signal
* @latched_mask: the latched modifier mask from stickykeys
* @locked_mask: the locked modifier mask from stickykeys
*
* The ::kbd-a11y-mods-state-changed signal is emitted each time either the
* latched modifiers mask or locked modifiers mask are changed as the
* result of keyboard accessibilty's sticky keys operations.
*/
manager_signals[KBD_A11Y_MASK_CHANGED] =
g_signal_new (I_("kbd-a11y-mods-state-changed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
_clutter_marshal_VOID__UINT_UINT,
G_TYPE_NONE, 2,
G_TYPE_UINT,
G_TYPE_UINT);
/**
* ClutterDeviceManager::kbd-a11y-flags-changed:
* @manager: the #ClutterDeviceManager that emitted the signal
* @settings_flags: the new ClutterKeyboardA11yFlags configuration
* @changed_mask: the ClutterKeyboardA11yFlags changed
*
* The ::kbd-a11y-flags-changed signal is emitted each time the
* ClutterKeyboardA11yFlags configuration is changed as the result of
* keyboard accessibilty operations.
*/
manager_signals[KBD_A11Y_FLAGS_CHANGED] =
g_signal_new (I_("kbd-a11y-flags-changed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
_clutter_marshal_VOID__UINT_UINT,
G_TYPE_NONE, 2,
G_TYPE_UINT,
G_TYPE_UINT);
/**
* ClutterDeviceManager::ptr-a11y-dwell-click-type-changed:
* @manager: the #ClutterDeviceManager that emitted the signal
* @click_type: the new #ClutterPointerA11yDwellClickType mode
*
* The ::ptr-a11y-dwell-click-type-changed signal is emitted each time
* the ClutterPointerA11yDwellClickType mode is changed as the result
* of pointer accessibility operations.
*/
manager_signals[PTR_A11Y_DWELL_CLICK_TYPE_CHANGED] =
g_signal_new (I_("ptr-a11y-dwell-click-type-changed"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__FLAGS,
G_TYPE_NONE, 1,
CLUTTER_TYPE_POINTER_A11Y_DWELL_CLICK_TYPE);
/**
* ClutterDeviceManager::ptr-a11y-timeout-started:
* @manager: the #ClutterDeviceManager that emitted the signal
* @device: the core pointer #ClutterInputDevice
* @timeout_type: the type of timeout #ClutterPointerA11yTimeoutType
* @delay: the delay in ms before secondary-click is triggered.
*
* The ::ptr-a11y-timeout-started signal is emitted when a
* pointer accessibility timeout delay is started, so that upper
* layers can notify the user with some visual feedback.
*/
manager_signals[PTR_A11Y_TIMEOUT_STARTED] =
g_signal_new (I_("ptr-a11y-timeout-started"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
_clutter_marshal_VOID__OBJECT_FLAGS_UINT,
G_TYPE_NONE, 3,
CLUTTER_TYPE_INPUT_DEVICE,
CLUTTER_TYPE_POINTER_A11Y_TIMEOUT_TYPE,
G_TYPE_UINT);
/**
* ClutterDeviceManager::ptr-a11y-timeout-stopped:
* @manager: the #ClutterDeviceManager that emitted the signal
* @device: the core pointer #ClutterInputDevice
* @timeout_type: the type of timeout #ClutterPointerA11yTimeoutType
* @clicked: %TRUE if the timeout finished and triggered a click
*
* The ::ptr-a11y-timeout-stopped signal is emitted when a running
* pointer accessibility timeout delay is stopped, either because
* it's triggered at the end of the delay or cancelled, so that
* upper layers can notify the user with some visual feedback.
*/
manager_signals[PTR_A11Y_TIMEOUT_STOPPED] =
g_signal_new (I_("ptr-a11y-timeout-stopped"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
_clutter_marshal_VOID__OBJECT_FLAGS_BOOLEAN,
G_TYPE_NONE, 3,
CLUTTER_TYPE_INPUT_DEVICE,
CLUTTER_TYPE_POINTER_A11Y_TIMEOUT_TYPE,
G_TYPE_BOOLEAN);
}
static void
clutter_device_manager_init (ClutterDeviceManager *self)
{
}
/**
* clutter_device_manager_get_default:
*
* Retrieves the device manager singleton
*
* Return value: (transfer none): the #ClutterDeviceManager singleton.
* The returned instance is owned by Clutter and it should not be
* modified or freed
*
* Since: 1.2
*/
ClutterDeviceManager *
clutter_device_manager_get_default (void)
{
ClutterBackend *backend = clutter_get_default_backend ();
return CLUTTER_BACKEND_GET_CLASS (backend)->get_device_manager (backend);
}
/**
* clutter_device_manager_list_devices:
* @device_manager: a #ClutterDeviceManager
*
* Lists all currently registered input devices
*
* Return value: (transfer container) (element-type Clutter.InputDevice):
* a newly allocated list of #ClutterInputDevice objects. Use
* g_slist_free() to deallocate it when done
*
* Since: 1.2
*/
GSList *
clutter_device_manager_list_devices (ClutterDeviceManager *device_manager)
{
const GSList *devices;
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
devices = clutter_device_manager_peek_devices (device_manager);
return g_slist_copy ((GSList *) devices);
}
/**
* clutter_device_manager_peek_devices:
* @device_manager: a #ClutterDeviceManager
*
* Lists all currently registered input devices
*
* Return value: (transfer none) (element-type Clutter.InputDevice):
* a pointer to the internal list of #ClutterInputDevice objects. The
* returned list is owned by the #ClutterDeviceManager and should never
* be modified or freed
*
* Since: 1.2
*/
const GSList *
clutter_device_manager_peek_devices (ClutterDeviceManager *device_manager)
{
ClutterDeviceManagerClass *manager_class;
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
return manager_class->get_devices (device_manager);
}
/**
* clutter_device_manager_get_device:
* @device_manager: a #ClutterDeviceManager
* @device_id: the integer id of a device
*
* Retrieves the #ClutterInputDevice with the given @device_id
*
* Return value: (transfer none): a #ClutterInputDevice or %NULL. The
* returned device is owned by the #ClutterDeviceManager and should
* never be modified or freed
*
* Since: 1.2
*/
ClutterInputDevice *
clutter_device_manager_get_device (ClutterDeviceManager *device_manager,
gint device_id)
{
ClutterDeviceManagerClass *manager_class;
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
return manager_class->get_device (device_manager, device_id);
}
/**
* clutter_device_manager_get_core_device:
* @device_manager: a #ClutterDeviceManager
* @device_type: the type of the core device
*
* Retrieves the core #ClutterInputDevice of type @device_type
*
* Core devices are devices created automatically by the default
* Clutter backend
*
* Return value: (transfer none): a #ClutterInputDevice or %NULL. The
* returned device is owned by the #ClutterDeviceManager and should
* not be modified or freed
*
* Since: 1.2
*/
ClutterInputDevice *
clutter_device_manager_get_core_device (ClutterDeviceManager *device_manager,
ClutterInputDeviceType device_type)
{
ClutterDeviceManagerClass *manager_class;
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
return manager_class->get_core_device (device_manager, device_type);
}
void
_clutter_device_manager_select_stage_events (ClutterDeviceManager *device_manager,
ClutterStage *stage)
{
ClutterDeviceManagerClass *manager_class;
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
if (manager_class->select_stage_events)
manager_class->select_stage_events (device_manager, stage);
}
/*
* _clutter_device_manager_add_device:
* @device_manager: a #ClutterDeviceManager
* @device: a #ClutterInputDevice
*
* Adds @device to the list of #ClutterInputDevice<!-- -->s maintained
* by @device_manager
*
* The reference count of @device is not increased
*
* The #ClutterDeviceManager::device-added signal is emitted after
* adding @device to the list
*/
void
_clutter_device_manager_add_device (ClutterDeviceManager *device_manager,
ClutterInputDevice *device)
{
ClutterDeviceManagerClass *manager_class;
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
g_assert (manager_class->add_device != NULL);
manager_class->add_device (device_manager, device);
g_signal_emit (device_manager, manager_signals[DEVICE_ADDED], 0, device);
}
/*
* _clutter_device_manager_remove_device:
* @device_manager: a #ClutterDeviceManager
* @device: a #ClutterInputDevice
*
* Removes @device from the list of #ClutterInputDevice<!-- -->s
* maintained by @device_manager
*
* The reference count of @device is not decreased
*
* The #ClutterDeviceManager::device-removed signal is emitted after
* removing @device from the list
*/
void
_clutter_device_manager_remove_device (ClutterDeviceManager *device_manager,
ClutterInputDevice *device)
{
ClutterDeviceManagerClass *manager_class;
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
g_assert (manager_class->remove_device != NULL);
/* The subclass remove_device() method will likely unref it but we
have to keep it alive during the signal emission. */
g_object_ref (device);
manager_class->remove_device (device_manager, device);
g_signal_emit (device_manager, manager_signals[DEVICE_REMOVED], 0, device);
g_object_unref (device);
}
/*
* _clutter_device_manager_update_devices:
* @device_manager: a #ClutterDeviceManager
*
* Updates every #ClutterInputDevice handled by @device_manager
* by performing a pick paint at the coordinates of each pointer
* device
*/
void
_clutter_device_manager_update_devices (ClutterDeviceManager *device_manager)
{
const GSList *d;
for (d = clutter_device_manager_peek_devices (device_manager);
d != NULL;
d = d->next)
{
ClutterInputDevice *device = d->data;
ClutterInputDeviceType device_type;
/* we only care about pointer devices */
device_type = clutter_input_device_get_device_type (device);
if (device_type != CLUTTER_POINTER_DEVICE)
continue;
/* out of stage */
if (device->stage == NULL)
continue;
/* the user disabled motion events delivery on actors for
* the stage the device is on; we don't perform any picking
* since the source of the events will always be set to be
* the stage
*/
if (!clutter_stage_get_motion_events_enabled (device->stage))
continue;
_clutter_input_device_update (device, NULL, TRUE);
}
}
ClutterBackend *
_clutter_device_manager_get_backend (ClutterDeviceManager *manager)
{
ClutterDeviceManagerPrivate *priv = clutter_device_manager_get_instance_private (manager);
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (manager), NULL);
return priv->backend;
}
/**
* clutter_device_manager_create_virtual_device:
* @device_manager: a #ClutterDeviceManager
* @device_type: the type of the virtual device
*
* Creates a virtual input device.
*
* Returns: (transfer full): a newly created virtual device
**/
ClutterVirtualInputDevice *
clutter_device_manager_create_virtual_device (ClutterDeviceManager *device_manager,
ClutterInputDeviceType device_type)
{
ClutterDeviceManagerClass *manager_class;
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager), NULL);
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
return manager_class->create_virtual_device (device_manager,
device_type);
}
/**
* clutter_device_manager_supported_virtua_device_types: (skip)
*/
ClutterVirtualDeviceType
clutter_device_manager_get_supported_virtual_device_types (ClutterDeviceManager *device_manager)
{
ClutterDeviceManagerClass *manager_class;
g_return_val_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager),
CLUTTER_VIRTUAL_DEVICE_TYPE_NONE);
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
return manager_class->get_supported_virtual_device_types (device_manager);
}
void
_clutter_device_manager_compress_motion (ClutterDeviceManager *device_manager,
ClutterEvent *event,
const ClutterEvent *to_discard)
{
ClutterDeviceManagerClass *manager_class;
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
if (!manager_class->compress_motion)
return;
manager_class->compress_motion (device_manager, event, to_discard);
}
void
clutter_device_manager_ensure_a11y_state (ClutterDeviceManager *device_manager)
{
ClutterInputDevice *core_pointer;
core_pointer = clutter_device_manager_get_core_device (device_manager,
CLUTTER_POINTER_DEVICE);
if (core_pointer)
{
if (_clutter_is_input_pointer_a11y_enabled (core_pointer))
_clutter_input_pointer_a11y_add_device (core_pointer);
}
}
static gboolean
are_kbd_a11y_settings_equal (ClutterKbdA11ySettings *a,
ClutterKbdA11ySettings *b)
{
return (memcmp (a, b, sizeof (ClutterKbdA11ySettings)) == 0);
}
void
clutter_device_manager_set_kbd_a11y_settings (ClutterDeviceManager *device_manager,
ClutterKbdA11ySettings *settings)
{
ClutterDeviceManagerClass *manager_class;
ClutterDeviceManagerPrivate *priv = clutter_device_manager_get_instance_private (device_manager);
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
if (are_kbd_a11y_settings_equal (&priv->kbd_a11y_settings, settings))
return;
priv->kbd_a11y_settings = *settings;
manager_class = CLUTTER_DEVICE_MANAGER_GET_CLASS (device_manager);
if (manager_class->apply_kbd_a11y_settings)
manager_class->apply_kbd_a11y_settings (device_manager, settings);
}
void
clutter_device_manager_get_kbd_a11y_settings (ClutterDeviceManager *device_manager,
ClutterKbdA11ySettings *settings)
{
ClutterDeviceManagerPrivate *priv = clutter_device_manager_get_instance_private (device_manager);
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
*settings = priv->kbd_a11y_settings;
}
static gboolean
are_pointer_a11y_settings_equal (ClutterPointerA11ySettings *a,
ClutterPointerA11ySettings *b)
{
return (memcmp (a, b, sizeof (ClutterPointerA11ySettings)) == 0);
}
static void
clutter_device_manager_enable_pointer_a11y (ClutterDeviceManager *device_manager)
{
ClutterInputDevice *core_pointer;
core_pointer = clutter_device_manager_get_core_device (device_manager,
CLUTTER_POINTER_DEVICE);
_clutter_input_pointer_a11y_add_device (core_pointer);
}
static void
clutter_device_manager_disable_pointer_a11y (ClutterDeviceManager *device_manager)
{
ClutterInputDevice *core_pointer;
core_pointer = clutter_device_manager_get_core_device (device_manager,
CLUTTER_POINTER_DEVICE);
_clutter_input_pointer_a11y_remove_device (core_pointer);
}
/**
* clutter_device_manager_set_pointer_a11y_settings:
* @device_manager: a #ClutterDeviceManager
* @settings: a pointer to a #ClutterPointerA11ySettings
*
* Sets the pointer accessibility settings
**/
void
clutter_device_manager_set_pointer_a11y_settings (ClutterDeviceManager *device_manager,
ClutterPointerA11ySettings *settings)
{
ClutterDeviceManagerPrivate *priv =
clutter_device_manager_get_instance_private (device_manager);
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
if (are_pointer_a11y_settings_equal (&priv->pointer_a11y_settings, settings))
return;
if (priv->pointer_a11y_settings.controls == 0 && settings->controls != 0)
clutter_device_manager_enable_pointer_a11y (device_manager);
else if (priv->pointer_a11y_settings.controls != 0 && settings->controls == 0)
clutter_device_manager_disable_pointer_a11y (device_manager);
priv->pointer_a11y_settings = *settings;
}
/**
* clutter_device_manager_get_pointer_a11y_settings:
* @device_manager: a #ClutterDeviceManager
* @settings: a pointer to a #ClutterPointerA11ySettings
*
* Gets the current pointer accessibility settings
**/
void
clutter_device_manager_get_pointer_a11y_settings (ClutterDeviceManager *device_manager,
ClutterPointerA11ySettings *settings)
{
ClutterDeviceManagerPrivate *priv =
clutter_device_manager_get_instance_private (device_manager);
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
*settings = priv->pointer_a11y_settings;
}
/**
* clutter_device_manager_set_pointer_a11y_dwell_click_type:
* @device_manager: a #ClutterDeviceManager
* @click_type: type of click as #ClutterPointerA11yDwellClickType
*
* Sets the dwell click type
**/
void
clutter_device_manager_set_pointer_a11y_dwell_click_type (ClutterDeviceManager *device_manager,
ClutterPointerA11yDwellClickType click_type)
{
ClutterDeviceManagerPrivate *priv =
clutter_device_manager_get_instance_private (device_manager);
g_return_if_fail (CLUTTER_IS_DEVICE_MANAGER (device_manager));
priv->pointer_a11y_settings.dwell_click_type = click_type;
}
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