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xserver/hw/xwayland/xwayland-input.c

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/*
* Copyright © 2014 Intel Corporation
* Copyright © 2008 Kristian Høgsberg
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of the
* copyright holders not be used in advertising or publicity
* pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#include "xwayland.h"
#include <linux/input.h>
#include <sys/mman.h>
#include <xkbsrv.h>
#include <xserver-properties.h>
#include <inpututils.h>
static void
xwl_pointer_control(DeviceIntPtr device, PtrCtrl *ctrl)
{
/* Nothing to do, dix handles all settings */
}
static int
xwl_pointer_proc(DeviceIntPtr device, int what)
{
#define NBUTTONS 10
#define NAXES 2
BYTE map[NBUTTONS + 1];
int i = 0;
Atom btn_labels[NBUTTONS] = { 0 };
Atom axes_labels[NAXES] = { 0 };
switch (what) {
case DEVICE_INIT:
device->public.on = FALSE;
for (i = 1; i <= NBUTTONS; i++)
map[i] = i;
btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
btn_labels[3] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_WHEEL_UP);
btn_labels[4] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_WHEEL_DOWN);
btn_labels[5] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_HWHEEL_LEFT);
btn_labels[6] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_HWHEEL_RIGHT);
/* don't know about the rest */
axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
if (!InitValuatorClassDeviceStruct(device, 2, btn_labels,
GetMotionHistorySize(), Absolute))
return BadValue;
/* Valuators */
InitValuatorAxisStruct(device, 0, axes_labels[0],
0, 0xFFFF, 10000, 0, 10000, Absolute);
InitValuatorAxisStruct(device, 1, axes_labels[1],
0, 0xFFFF, 10000, 0, 10000, Absolute);
if (!InitPtrFeedbackClassDeviceStruct(device, xwl_pointer_control))
return BadValue;
if (!InitButtonClassDeviceStruct(device, 3, btn_labels, map))
return BadValue;
return Success;
case DEVICE_ON:
device->public.on = TRUE;
return Success;
case DEVICE_OFF:
case DEVICE_CLOSE:
device->public.on = FALSE;
return Success;
}
return BadMatch;
#undef NBUTTONS
#undef NAXES
}
static void
xwl_keyboard_control(DeviceIntPtr device, KeybdCtrl *ctrl)
{
}
static int
xwl_keyboard_proc(DeviceIntPtr device, int what)
{
struct xwl_seat *xwl_seat = device->public.devicePrivate;
int len;
switch (what) {
case DEVICE_INIT:
device->public.on = FALSE;
if (xwl_seat->keymap)
len = strnlen(xwl_seat->keymap, xwl_seat->keymap_size);
else
len = 0;
if (!InitKeyboardDeviceStructFromString(device, xwl_seat->keymap,
len,
NULL, xwl_keyboard_control))
return BadValue;
return Success;
case DEVICE_ON:
device->public.on = TRUE;
return Success;
case DEVICE_OFF:
case DEVICE_CLOSE:
device->public.on = FALSE;
return Success;
}
return BadMatch;
}
static void
pointer_handle_enter(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface,
wl_fixed_t sx_w, wl_fixed_t sy_w)
{
struct xwl_seat *xwl_seat = data;
DeviceIntPtr dev = xwl_seat->pointer;
int i;
int sx = wl_fixed_to_int(sx_w);
int sy = wl_fixed_to_int(sy_w);
ScreenPtr pScreen = xwl_seat->xwl_screen->screen;
ValuatorMask mask;
/* There's a race here where if we create and then immediately
* destroy a surface, we might end up in a state where the Wayland
* compositor sends us an event for a surface that doesn't exist.
*
* Don't process enter events in this case.
*/
if (surface == NULL)
return;
xwl_seat->xwl_screen->serial = serial;
xwl_seat->pointer_enter_serial = serial;
xwl_seat->focus_window = wl_surface_get_user_data(surface);
(*pScreen->SetCursorPosition) (dev, pScreen, sx, sy, TRUE);
CheckMotion(NULL, GetMaster(dev, MASTER_POINTER));
/* Ideally, X clients shouldn't see these button releases. When
* the pointer leaves a window with buttons down, it means that
* the wayland compositor has grabbed the pointer. The button
* release event is consumed by whatever grab in the compositor
* and won't be sent to clients (the X server is a client).
* However, we need to reset X's idea of which buttons are up and
* down, and they're all up (by definition) when the pointer
* enters a window. We should figure out a way to swallow these
* events, perhaps using an X grab whenever the pointer is not in
* any X window, but for now just send the events. */
valuator_mask_zero(&mask);
for (i = 0; i < dev->button->numButtons; i++)
if (BitIsOn(dev->button->down, i))
QueuePointerEvents(xwl_seat->pointer, ButtonRelease, i, 0, &mask);
}
static void
pointer_handle_leave(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface)
{
struct xwl_seat *xwl_seat = data;
DeviceIntPtr dev = xwl_seat->pointer;
xwl_seat->xwl_screen->serial = serial;
xwl_seat->focus_window = NULL;
CheckMotion(NULL, GetMaster(dev, MASTER_POINTER));
}
static void
pointer_handle_motion(void *data, struct wl_pointer *pointer,
uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w)
{
struct xwl_seat *xwl_seat = data;
int32_t dx, dy;
int sx = wl_fixed_to_int(sx_w);
int sy = wl_fixed_to_int(sy_w);
ValuatorMask mask;
if (!xwl_seat->focus_window)
return;
dx = xwl_seat->focus_window->window->drawable.x;
dy = xwl_seat->focus_window->window->drawable.y;
valuator_mask_zero(&mask);
valuator_mask_set(&mask, 0, dx + sx);
valuator_mask_set(&mask, 1, dy + sy);
QueuePointerEvents(xwl_seat->pointer, MotionNotify, 0,
POINTER_ABSOLUTE | POINTER_SCREEN, &mask);
}
static void
pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial,
uint32_t time, uint32_t button, uint32_t state)
{
struct xwl_seat *xwl_seat = data;
int index;
ValuatorMask mask;
xwl_seat->xwl_screen->serial = serial;
switch (button) {
case BTN_MIDDLE:
index = 2;
break;
case BTN_RIGHT:
index = 3;
break;
default:
index = button - BTN_LEFT + 1;
break;
}
valuator_mask_zero(&mask);
QueuePointerEvents(xwl_seat->pointer,
state ? ButtonPress : ButtonRelease, index, 0, &mask);
}
static void
pointer_handle_axis(void *data, struct wl_pointer *pointer,
uint32_t time, uint32_t axis, wl_fixed_t value)
{
struct xwl_seat *xwl_seat = data;
int index, count;
int i, val;
const int divisor = 10;
ValuatorMask mask;
if (time - xwl_seat->scroll_time > 2000) {
xwl_seat->vertical_scroll = 0;
xwl_seat->horizontal_scroll = 0;
}
xwl_seat->scroll_time = time;
/* FIXME: Need to do proper smooth scrolling here! */
switch (axis) {
case WL_POINTER_AXIS_VERTICAL_SCROLL:
xwl_seat->vertical_scroll += value / divisor;
val = wl_fixed_to_int(xwl_seat->vertical_scroll);
xwl_seat->vertical_scroll -= wl_fixed_from_int(val);
if (val <= -1)
index = 4;
else if (val >= 1)
index = 5;
else
return;
break;
case WL_POINTER_AXIS_HORIZONTAL_SCROLL:
xwl_seat->horizontal_scroll += value / divisor;
val = wl_fixed_to_int(xwl_seat->horizontal_scroll);
xwl_seat->horizontal_scroll -= wl_fixed_from_int(val);
if (val <= -1)
index = 6;
else if (val >= 1)
index = 7;
else
return;
break;
default:
return;
}
valuator_mask_zero(&mask);
count = abs(val);
for (i = 0; i < count; i++) {
QueuePointerEvents(xwl_seat->pointer, ButtonPress, index, 0, &mask);
QueuePointerEvents(xwl_seat->pointer, ButtonRelease, index, 0, &mask);
}
}
static const struct wl_pointer_listener pointer_listener = {
pointer_handle_enter,
pointer_handle_leave,
pointer_handle_motion,
pointer_handle_button,
pointer_handle_axis,
};
static void
keyboard_handle_key(void *data, struct wl_keyboard *keyboard, uint32_t serial,
uint32_t time, uint32_t key, uint32_t state)
{
struct xwl_seat *xwl_seat = data;
uint32_t *k, *end;
ValuatorMask mask;
xwl_seat->xwl_screen->serial = serial;
end = (uint32_t *) ((char *) xwl_seat->keys.data + xwl_seat->keys.size);
for (k = xwl_seat->keys.data; k < end; k++) {
if (*k == key)
*k = *--end;
}
xwl_seat->keys.size = (char *) end - (char *) xwl_seat->keys.data;
if (state) {
k = wl_array_add(&xwl_seat->keys, sizeof *k);
*k = key;
}
valuator_mask_zero(&mask);
QueueKeyboardEvents(xwl_seat->keyboard,
state ? KeyPress : KeyRelease, key + 8, &mask);
}
static void
keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
uint32_t format, int fd, uint32_t size)
{
struct xwl_seat *xwl_seat = data;
DeviceIntPtr master;
XkbDescPtr xkb;
XkbChangesRec changes = { 0 };
if (xwl_seat->keymap)
munmap(xwl_seat->keymap, xwl_seat->keymap_size);
xwl_seat->keymap_size = size;
xwl_seat->keymap = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
if (xwl_seat->keymap == MAP_FAILED) {
xwl_seat->keymap_size = 0;
xwl_seat->keymap = NULL;
goto out;
}
xkb = XkbCompileKeymapFromString(xwl_seat->keyboard, xwl_seat->keymap,
strnlen(xwl_seat->keymap,
xwl_seat->keymap_size));
if (!xkb)
goto out;
XkbUpdateDescActions(xkb, xkb->min_key_code, XkbNumKeys(xkb), &changes);
if (xwl_seat->keyboard->key)
/* Keep the current controls */
XkbCopyControls(xkb, xwl_seat->keyboard->key->xkbInfo->desc);
XkbDeviceApplyKeymap(xwl_seat->keyboard, xkb);
master = GetMaster(xwl_seat->keyboard, MASTER_KEYBOARD);
if (master && master->lastSlave == xwl_seat->keyboard)
XkbDeviceApplyKeymap(master, xkb);
XkbFreeKeyboard(xkb, XkbAllComponentsMask, TRUE);
out:
close(fd);
}
static void
keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
uint32_t serial,
struct wl_surface *surface, struct wl_array *keys)
{
struct xwl_seat *xwl_seat = data;
ValuatorMask mask;
uint32_t *k;
xwl_seat->xwl_screen->serial = serial;
xwl_seat->keyboard_focus = surface;
wl_array_copy(&xwl_seat->keys, keys);
valuator_mask_zero(&mask);
wl_array_for_each(k, &xwl_seat->keys)
QueueKeyboardEvents(xwl_seat->keyboard, KeyPress, *k + 8, &mask);
}
static void
keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
uint32_t serial, struct wl_surface *surface)
{
struct xwl_seat *xwl_seat = data;
ValuatorMask mask;
uint32_t *k;
xwl_seat->xwl_screen->serial = serial;
valuator_mask_zero(&mask);
wl_array_for_each(k, &xwl_seat->keys)
QueueKeyboardEvents(xwl_seat->keyboard, KeyRelease, *k + 8, &mask);
xwl_seat->keyboard_focus = NULL;
}
static void
keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
uint32_t serial, uint32_t mods_depressed,
uint32_t mods_latched, uint32_t mods_locked,
uint32_t group)
{
struct xwl_seat *xwl_seat = data;
DeviceIntPtr dev;
XkbStateRec old_state, *new_state;
xkbStateNotify sn;
CARD16 changed;
/* We don't need any of this while we have keyboard focus since
the regular key event processing already takes care of setting
our internal state correctly. */
if (xwl_seat->keyboard_focus)
return;
for (dev = inputInfo.devices; dev; dev = dev->next) {
if (dev != xwl_seat->keyboard &&
dev != GetMaster(xwl_seat->keyboard, MASTER_KEYBOARD))
continue;
old_state = dev->key->xkbInfo->state;
new_state = &dev->key->xkbInfo->state;
new_state->locked_group = group & XkbAllGroupsMask;
new_state->locked_mods = mods_locked & XkbAllModifiersMask;
XkbLatchModifiers(dev, XkbAllModifiersMask,
mods_latched & XkbAllModifiersMask);
XkbComputeDerivedState(dev->key->xkbInfo);
changed = XkbStateChangedFlags(&old_state, new_state);
if (!changed)
continue;
sn.keycode = 0;
sn.eventType = 0;
sn.requestMajor = XkbReqCode;
sn.requestMinor = X_kbLatchLockState; /* close enough */
sn.changed = changed;
XkbSendStateNotify(dev, &sn);
}
}
static const struct wl_keyboard_listener keyboard_listener = {
keyboard_handle_keymap,
keyboard_handle_enter,
keyboard_handle_leave,
keyboard_handle_key,
keyboard_handle_modifiers,
};
static DeviceIntPtr
add_device(struct xwl_seat *xwl_seat,
const char *driver, DeviceProc device_proc)
{
DeviceIntPtr dev = NULL;
static Atom type_atom;
char name[32];
dev = AddInputDevice(serverClient, device_proc, TRUE);
if (dev == NULL)
return NULL;
if (type_atom == None)
type_atom = MakeAtom(driver, strlen(driver), TRUE);
snprintf(name, sizeof name, "%s:%d", driver, xwl_seat->id);
AssignTypeAndName(dev, type_atom, name);
dev->public.devicePrivate = xwl_seat;
dev->type = SLAVE;
dev->spriteInfo->spriteOwner = FALSE;
return dev;
}
static void
seat_handle_capabilities(void *data, struct wl_seat *seat,
enum wl_seat_capability caps)
{
struct xwl_seat *xwl_seat = data;
if (caps & WL_SEAT_CAPABILITY_POINTER && xwl_seat->wl_pointer == NULL) {
xwl_seat->wl_pointer = wl_seat_get_pointer(seat);
wl_pointer_add_listener(xwl_seat->wl_pointer,
&pointer_listener, xwl_seat);
if (xwl_seat->pointer)
EnableDevice(xwl_seat->pointer, TRUE);
else {
xwl_seat_set_cursor(xwl_seat);
xwl_seat->pointer =
add_device(xwl_seat, "xwayland-pointer", xwl_pointer_proc);
}
} else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && xwl_seat->wl_pointer) {
wl_pointer_release(xwl_seat->wl_pointer);
xwl_seat->wl_pointer = NULL;
if (xwl_seat->pointer)
DisableDevice(xwl_seat->pointer, TRUE);
}
if (caps & WL_SEAT_CAPABILITY_KEYBOARD && xwl_seat->wl_keyboard == NULL) {
xwl_seat->wl_keyboard = wl_seat_get_keyboard(seat);
wl_keyboard_add_listener(xwl_seat->wl_keyboard,
&keyboard_listener, xwl_seat);
if (xwl_seat->keyboard)
EnableDevice(xwl_seat->keyboard, TRUE);
else {
xwl_seat->keyboard =
add_device(xwl_seat, "xwayland-keyboard", xwl_keyboard_proc);
}
} else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && xwl_seat->wl_keyboard) {
wl_keyboard_release(xwl_seat->wl_keyboard);
xwl_seat->wl_keyboard = NULL;
if (xwl_seat->keyboard)
DisableDevice(xwl_seat->keyboard, TRUE);
}
xwl_seat->xwl_screen->expecting_event--;
/* FIXME: Touch ... */
}
static void
seat_handle_name(void *data, struct wl_seat *seat,
const char *name)
{
}
static const struct wl_seat_listener seat_listener = {
seat_handle_capabilities,
seat_handle_name
};
static void
create_input_device(struct xwl_screen *xwl_screen, uint32_t id)
{
struct xwl_seat *xwl_seat;
xwl_seat = calloc(sizeof *xwl_seat, 1);
if (xwl_seat == NULL) {
ErrorF("create_input ENOMEM");
return;
}
xwl_seat->xwl_screen = xwl_screen;
xorg_list_add(&xwl_seat->link, &xwl_screen->seat_list);
xwl_seat->seat =
wl_registry_bind(xwl_screen->registry, id, &wl_seat_interface, 3);
xwl_seat->id = id;
xwl_seat->cursor = wl_compositor_create_surface(xwl_screen->compositor);
wl_seat_add_listener(xwl_seat->seat, &seat_listener, xwl_seat);
wl_array_init(&xwl_seat->keys);
}
void
xwl_seat_destroy(struct xwl_seat *xwl_seat)
{
RemoveDevice(xwl_seat->pointer, FALSE);
RemoveDevice(xwl_seat->keyboard, FALSE);
wl_seat_destroy(xwl_seat->seat);
wl_surface_destroy(xwl_seat->cursor);
wl_array_release(&xwl_seat->keys);
free(xwl_seat);
}
static void
input_handler(void *data, struct wl_registry *registry, uint32_t id,
const char *interface, uint32_t version)
{
struct xwl_screen *xwl_screen = data;
if (strcmp(interface, "wl_seat") == 0 && version >= 3) {
create_input_device(xwl_screen, id);
xwl_screen->expecting_event++;
}
}
static void
global_remove(void *data, struct wl_registry *registry, uint32_t name)
{
}
static const struct wl_registry_listener input_listener = {
input_handler,
global_remove,
};
Bool
LegalModifier(unsigned int key, DeviceIntPtr pDev)
{
return TRUE;
}
void
ProcessInputEvents(void)
{
mieqProcessInputEvents();
}
void
DDXRingBell(int volume, int pitch, int duration)
{
}
static WindowPtr
xwl_xy_to_window(ScreenPtr screen, SpritePtr sprite, int x, int y)
{
struct xwl_seat *xwl_seat = NULL;
DeviceIntPtr device;
for (device = inputInfo.devices; device; device = device->next) {
if (device->deviceProc == xwl_pointer_proc &&
device->spriteInfo->sprite == sprite) {
xwl_seat = device->public.devicePrivate;
break;
}
}
if (xwl_seat == NULL) {
/* XTEST device */
sprite->spriteTraceGood = 1;
return sprite->spriteTrace[0];
}
if (xwl_seat->focus_window) {
sprite->spriteTraceGood = 2;
sprite->spriteTrace[1] = xwl_seat->focus_window->window;
return miSpriteTrace(sprite, x, y);
}
else {
sprite->spriteTraceGood = 1;
return sprite->spriteTrace[0];
}
}
void
InitInput(int argc, char *argv[])
{
ScreenPtr pScreen = screenInfo.screens[0];
struct xwl_screen *xwl_screen = xwl_screen_get(pScreen);
mieqInit();
xwl_screen->input_registry = wl_display_get_registry(xwl_screen->display);
wl_registry_add_listener(xwl_screen->input_registry, &input_listener,
xwl_screen);
xwl_screen->XYToWindow = pScreen->XYToWindow;
pScreen->XYToWindow = xwl_xy_to_window;
xwl_screen->expecting_event = 0;
wl_display_roundtrip(xwl_screen->display);
while (xwl_screen->expecting_event)
wl_display_roundtrip(xwl_screen->display);
}
void
CloseInput(void)
{
mieqFini();
}
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