core: Add XInput2 device map implementation
This commit is contained in:
Carlos Garnacho
committed by
Jasper St. Pierre
Jasper St. Pierre
parent
9f06372e17
commit
93c7a22161
265
src/core/device-map-xi2.c
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265
src/core/device-map-xi2.c
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* Input device map, XInput2 implementation */
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/*
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* Copyright (C) 2011 Carlos Garnacho
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include "config.h"
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#include "device-map-xi2.h"
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#include <X11/extensions/XInput2.h>
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#include "devices-xi2.h"
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#define XINPUT2_VERSION_MAJOR 2
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#define XINPUT2_VERSION_MINOR 2
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G_DEFINE_TYPE (MetaDeviceMapXI2, meta_device_map_xi2, META_TYPE_DEVICE_MAP)
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static gboolean
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meta_device_map_xi2_grab_key (MetaDeviceMap *device_map,
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Window xwindow,
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guint keycode,
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guint modifiers,
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gboolean sync)
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{
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XIGrabModifiers mods = { modifiers, 0 };
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MetaDisplay *display;
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XIEventMask mask;
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gint retval;
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display = meta_device_map_get_display (device_map);
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mask.deviceid = XIAllMasterDevices;
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mask.mask = meta_device_xi2_translate_event_mask (KeyPressMask |
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KeyReleaseMask,
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&mask.mask_len);
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retval = XIGrabKeycode (display->xdisplay,
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XIAllMasterDevices,
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keycode, xwindow,
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(sync) ? GrabModeSync : GrabModeAsync,
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GrabModeAsync, /* Never care about the other device */
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True, &mask, 1, &mods);
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return (retval == Success);
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}
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static void
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meta_device_map_xi2_ungrab_key (MetaDeviceMap *device_map,
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Window xwindow,
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guint keycode,
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guint modifiers)
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{
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XIGrabModifiers mods = { modifiers, 0 };
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MetaDisplay *display;
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display = meta_device_map_get_display (device_map);
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XIUngrabKeycode (display->xdisplay,
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XIAllMasterDevices,
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keycode, xwindow,
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1, &mods);
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}
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static gboolean
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meta_device_map_xi2_grab_button (MetaDeviceMap *device_map,
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Window xwindow,
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guint n_button,
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guint modifiers,
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guint evmask,
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gboolean sync)
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{
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XIGrabModifiers mods = { modifiers, 0 };
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XIEventMask mask;
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MetaDisplay *display;
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int retval;
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display = meta_device_map_get_display (device_map);
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mask.deviceid = XIAllMasterDevices;
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mask.mask = meta_device_xi2_translate_event_mask (evmask, &mask.mask_len);
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retval = XIGrabButton (display->xdisplay,
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XIAllMasterDevices,
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n_button, xwindow, None,
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(sync) ? GrabModeSync : GrabModeAsync,
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GrabModeAsync, /* Never care about the other device */
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False, &mask, 1, &mods);
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return (retval == Success);
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}
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static void
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meta_device_map_xi2_ungrab_button (MetaDeviceMap *device_map,
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Window xwindow,
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guint n_button,
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guint modifiers)
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{
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XIGrabModifiers mods = { modifiers, 0 };
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MetaDisplay *display;
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display = meta_device_map_get_display (device_map);
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XIUngrabButton (display->xdisplay,
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XIAllMasterDevices,
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n_button, xwindow, 1, &mods);
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}
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static void
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add_device_from_info (MetaDeviceMap *device_map,
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gint use,
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gint device_id)
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{
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MetaDevice *device;
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MetaDisplay *display;
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display = meta_device_map_get_display (device_map);
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if (use == XIMasterPointer)
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device = meta_device_pointer_xi2_new (display, device_id);
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else if (use == XIMasterKeyboard)
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device = meta_device_keyboard_xi2_new (display, device_id);
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if (device)
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{
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meta_device_map_add_device (device_map, device);
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g_object_unref (device);
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}
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}
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static void
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pair_devices (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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MetaDevice *device1, *device2;
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MetaDeviceMap *device_map;
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device_map = user_data;
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device1 = meta_device_map_lookup (device_map, GPOINTER_TO_INT (key));
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device2 = meta_device_map_lookup (device_map, GPOINTER_TO_INT (value));
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meta_device_pair_devices (device1, device2);
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}
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static void
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meta_device_map_xi2_constructed (GObject *object)
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{
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MetaDeviceMap *device_map = META_DEVICE_MAP (object);
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MetaDisplay *display;
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XIDeviceInfo *info;
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GHashTable *pairs;
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int n_devices, i;
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display = meta_device_map_get_display (device_map);
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/* We're only interested in master devices,
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* detached slave devices are left for applications
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* to handle.
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*/
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info = XIQueryDevice (display->xdisplay, XIAllMasterDevices, &n_devices);
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pairs = g_hash_table_new (NULL, NULL);
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for (i = 0; i < n_devices; i++)
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{
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add_device_from_info (device_map, info[i].use, info[i].deviceid);
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g_hash_table_insert (pairs,
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GINT_TO_POINTER (info[i].deviceid),
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GINT_TO_POINTER (info[i].attachment));
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}
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g_hash_table_foreach (pairs, pair_devices, device_map);
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g_hash_table_destroy (pairs);
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XIFreeDeviceInfo (info);
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}
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static void
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meta_device_map_xi2_class_init (MetaDeviceMapXI2Class *klass)
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{
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MetaDeviceMapClass *device_map_class = META_DEVICE_MAP_CLASS (klass);
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->constructed = meta_device_map_xi2_constructed;
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device_map_class->grab_key = meta_device_map_xi2_grab_key;
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device_map_class->ungrab_key = meta_device_map_xi2_ungrab_key;
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device_map_class->grab_button = meta_device_map_xi2_grab_button;
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device_map_class->ungrab_button = meta_device_map_xi2_ungrab_button;
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}
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static void
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meta_device_map_xi2_init (MetaDeviceMapXI2 *device_map)
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{
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}
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gboolean
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meta_device_map_xi2_handle_hierarchy_event (MetaDeviceMapXI2 *device_map,
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XEvent *ev)
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{
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MetaDisplay *display;
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display = meta_device_map_get_display (META_DEVICE_MAP (device_map));
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if (ev->type == GenericEvent &&
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ev->xcookie.extension == display->xinput2_opcode)
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{
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XIHierarchyEvent *xev;
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GHashTable *pairs;
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gint i;
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g_assert (display->have_xinput2 == TRUE);
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xev = (XIHierarchyEvent *) ev->xcookie.data;
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if (xev->evtype != XI_HierarchyChanged)
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return FALSE;
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pairs = g_hash_table_new (NULL, NULL);
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for (i = 0; i < xev->num_info; i++)
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{
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if (xev->info[i].flags & XIMasterAdded)
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{
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add_device_from_info (META_DEVICE_MAP (device_map),
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xev->info[i].use,
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xev->info[i].deviceid);
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g_hash_table_insert (pairs,
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GINT_TO_POINTER (xev->info[i].deviceid),
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GINT_TO_POINTER (xev->info[i].attachment));
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}
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else if (xev->info[i].flags & XIMasterRemoved)
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{
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MetaDevice *device;
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device = meta_device_map_lookup (META_DEVICE_MAP (device_map),
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xev->info[i].deviceid);
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if (device)
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meta_device_map_remove_device (META_DEVICE_MAP (device_map),
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device);
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}
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}
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g_hash_table_foreach (pairs, pair_devices, device_map);
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g_hash_table_destroy (pairs);
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return TRUE;
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}
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return FALSE;
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}
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