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8181ef15d6
The constrain callback cannot rely on the pointer position of the corresponding ClutterInputDevice to get the actual delta of the motion event that is to be constrained since it is only updated when an event is dispatched. So change the API to pass the previous pointer position when constraining. https://bugzilla.gnome.org/show_bug.cgi?id=752752
152 lines
5.7 KiB
C
152 lines
5.7 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2012 Intel Corp.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __CLUTTER_EVDEV_H__
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#define __CLUTTER_EVDEV_H__
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#include <glib.h>
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#include <glib-object.h>
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#include <xkbcommon/xkbcommon.h>
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#include <clutter/clutter.h>
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#include <libinput.h>
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G_BEGIN_DECLS
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#if !defined(CLUTTER_ENABLE_COMPOSITOR_API) && !defined(CLUTTER_COMPILATION)
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#error "You need to define CLUTTER_ENABLE_COMPOSITOR_API before including clutter-evdev.h"
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#endif
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/**
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* ClutterOpenDeviceCallback:
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* @path: the device path
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* @flags: flags to be passed to open
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*
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* This callback will be called when Clutter needs to access an input
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* device. It should return an open file descriptor for the file at @path,
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* or -1 if opening failed.
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*/
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typedef int (*ClutterOpenDeviceCallback) (const char *path,
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int flags,
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gpointer user_data,
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GError **error);
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typedef void (*ClutterCloseDeviceCallback) (int fd,
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gpointer user_data);
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CLUTTER_AVAILABLE_IN_1_16
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void clutter_evdev_set_device_callbacks (ClutterOpenDeviceCallback open_callback,
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ClutterCloseDeviceCallback close_callback,
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gpointer user_data);
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CLUTTER_AVAILABLE_IN_1_10
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void clutter_evdev_release_devices (void);
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CLUTTER_AVAILABLE_IN_1_10
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void clutter_evdev_reclaim_devices (void);
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/**
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* ClutterPointerConstrainCallback:
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* @device: the core pointer device
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* @time: the event time in milliseconds
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* @x: (inout): the new X coordinate
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* @y: (inout): the new Y coordinate
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* @user_data: user data passed to this function
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*
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* This callback will be called for all pointer motion events, and should
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* update (@x, @y) to constrain the pointer position appropriately.
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* The subsequent motion event will use the updated values as the new coordinates.
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* Note that the coordinates are not clamped to the stage size, and the callback
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* must make sure that this happens before it returns.
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* Also note that the event will be emitted even if the pointer is constrained
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* to be in the same position.
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*
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* Since: 1.16
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*/
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typedef void (*ClutterPointerConstrainCallback) (ClutterInputDevice *device,
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guint32 time,
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float prev_x,
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float prev_y,
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float *x,
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float *y,
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gpointer user_data);
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CLUTTER_AVAILABLE_IN_1_16
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void clutter_evdev_set_pointer_constrain_callback (ClutterDeviceManager *evdev,
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ClutterPointerConstrainCallback callback,
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gpointer user_data,
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GDestroyNotify user_data_notify);
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CLUTTER_AVAILABLE_IN_1_16
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void clutter_evdev_set_keyboard_map (ClutterDeviceManager *evdev,
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struct xkb_keymap *keymap);
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CLUTTER_AVAILABLE_IN_1_18
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struct xkb_keymap * clutter_evdev_get_keyboard_map (ClutterDeviceManager *evdev);
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CLUTTER_AVAILABLE_IN_1_20
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void clutter_evdev_set_keyboard_layout_index (ClutterDeviceManager *evdev,
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xkb_layout_index_t idx);
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CLUTTER_AVAILABLE_IN_1_18
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void clutter_evdev_set_keyboard_repeat (ClutterDeviceManager *evdev,
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gboolean repeat,
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guint32 delay,
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guint32 interval);
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typedef gboolean (* ClutterEvdevFilterFunc) (struct libinput_event *event,
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gpointer data);
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CLUTTER_AVAILABLE_IN_1_20
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void clutter_evdev_add_filter (ClutterEvdevFilterFunc func,
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gpointer data,
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GDestroyNotify destroy_notify);
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CLUTTER_AVAILABLE_IN_1_20
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void clutter_evdev_remove_filter (ClutterEvdevFilterFunc func,
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gpointer data);
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CLUTTER_AVAILABLE_IN_1_20
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struct libinput_device * clutter_evdev_input_device_get_libinput_device (ClutterInputDevice *device);
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CLUTTER_AVAILABLE_IN_1_20
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gint32 clutter_evdev_event_sequence_get_slot (const ClutterEventSequence *sequence);
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CLUTTER_AVAILABLE_IN_1_20
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void clutter_evdev_warp_pointer (ClutterInputDevice *pointer_device,
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guint32 time_,
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int x,
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int y);
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CLUTTER_AVAILABLE_IN_1_26
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guint32 clutter_evdev_event_get_event_code (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_26
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guint64 clutter_evdev_event_get_time_usec (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_26
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gboolean clutter_evdev_event_get_relative_motion (const ClutterEvent *event,
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double *dx,
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double *dy,
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double *dx_unaccel,
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double *dy_unaccel);
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G_END_DECLS
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#endif /* __CLUTTER_EVDEV_H__ */
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