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sync code with last improvements from OpenBSD

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purplerain 2023-08-28 05:57:34 +00:00
commit 88965415ff
Signed by: purplerain
GPG key ID: F42C07F07E2E35B7
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xserver/Xi/xiquerypointer.c Normal file
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/*
* Copyright 2007-2008 Peter Hutterer
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Author: Peter Hutterer, University of South Australia, NICTA
*/
/***********************************************************************
*
* Request to query the pointer location of an extension input device.
*
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <X11/X.h> /* for inputstr.h */
#include <X11/Xproto.h> /* Request macro */
#include "inputstr.h" /* DeviceIntPtr */
#include "windowstr.h" /* window structure */
#include <X11/extensions/XI.h>
#include <X11/extensions/XI2proto.h>
#include "extnsionst.h"
#include "exevents.h"
#include "exglobals.h"
#include "eventconvert.h"
#include "scrnintstr.h"
#include "xkbsrv.h"
#ifdef PANORAMIX
#include "panoramiXsrv.h"
#endif
#include "inpututils.h"
#include "xiquerypointer.h"
/***********************************************************************
*
* This procedure allows a client to query the pointer of a device.
*
*/
int _X_COLD
SProcXIQueryPointer(ClientPtr client)
{
REQUEST(xXIQueryPointerReq);
REQUEST_SIZE_MATCH(xXIQueryPointerReq);
swaps(&stuff->length);
swaps(&stuff->deviceid);
swapl(&stuff->win);
return (ProcXIQueryPointer(client));
}
int
ProcXIQueryPointer(ClientPtr client)
{
int rc;
xXIQueryPointerReply rep;
DeviceIntPtr pDev, kbd;
WindowPtr pWin, t;
SpritePtr pSprite;
XkbStatePtr state;
char *buttons = NULL;
int buttons_size = 0; /* size of buttons array */
XIClientPtr xi_client;
Bool have_xi22 = FALSE;
REQUEST(xXIQueryPointerReq);
REQUEST_SIZE_MATCH(xXIQueryPointerReq);
/* Check if client is compliant with XInput 2.2 or later. Earlier clients
* do not know about touches, so we must report emulated button presses. 2.2
* and later clients are aware of touches, so we don't include emulated
* button presses in the reply. */
xi_client = dixLookupPrivate(&client->devPrivates, XIClientPrivateKey);
if (version_compare(xi_client->major_version,
xi_client->minor_version, 2, 2) >= 0)
have_xi22 = TRUE;
rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixReadAccess);
if (rc != Success) {
client->errorValue = stuff->deviceid;
return rc;
}
if (pDev->valuator == NULL || IsKeyboardDevice(pDev) || (!IsMaster(pDev) && !IsFloating(pDev))) { /* no attached devices */
client->errorValue = stuff->deviceid;
return BadDevice;
}
rc = dixLookupWindow(&pWin, stuff->win, client, DixGetAttrAccess);
if (rc != Success) {
client->errorValue = stuff->win;
return rc;
}
if (pDev->valuator->motionHintWindow)
MaybeStopHint(pDev, client);
if (IsMaster(pDev))
kbd = GetMaster(pDev, MASTER_KEYBOARD);
else
kbd = (pDev->key) ? pDev : NULL;
pSprite = pDev->spriteInfo->sprite;
rep = (xXIQueryPointerReply) {
.repType = X_Reply,
.RepType = X_XIQueryPointer,
.sequenceNumber = client->sequence,
.length = 6,
.root = (GetCurrentRootWindow(pDev))->drawable.id,
.root_x = double_to_fp1616(pSprite->hot.x),
.root_y = double_to_fp1616(pSprite->hot.y),
.child = None
};
if (kbd) {
state = &kbd->key->xkbInfo->state;
rep.mods.base_mods = state->base_mods;
rep.mods.latched_mods = state->latched_mods;
rep.mods.locked_mods = state->locked_mods;
rep.group.base_group = state->base_group;
rep.group.latched_group = state->latched_group;
rep.group.locked_group = state->locked_group;
}
if (pDev->button) {
int i;
rep.buttons_len =
bytes_to_int32(bits_to_bytes(pDev->button->numButtons));
rep.length += rep.buttons_len;
buttons = calloc(rep.buttons_len, 4);
if (!buttons)
return BadAlloc;
buttons_size = rep.buttons_len * 4;
for (i = 1; i < pDev->button->numButtons; i++)
if (BitIsOn(pDev->button->down, i))
SetBit(buttons, pDev->button->map[i]);
if (!have_xi22 && pDev->touch && pDev->touch->buttonsDown > 0)
SetBit(buttons, pDev->button->map[1]);
}
else
rep.buttons_len = 0;
if (pSprite->hot.pScreen == pWin->drawable.pScreen) {
rep.same_screen = xTrue;
rep.win_x = double_to_fp1616(pSprite->hot.x - pWin->drawable.x);
rep.win_y = double_to_fp1616(pSprite->hot.y - pWin->drawable.y);
for (t = pSprite->win; t; t = t->parent)
if (t->parent == pWin) {
rep.child = t->drawable.id;
break;
}
}
else {
rep.same_screen = xFalse;
rep.win_x = 0;
rep.win_y = 0;
}
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
rep.root_x += double_to_fp1616(screenInfo.screens[0]->x);
rep.root_y += double_to_fp1616(screenInfo.screens[0]->y);
if (stuff->win == rep.root) {
rep.win_x += double_to_fp1616(screenInfo.screens[0]->x);
rep.win_y += double_to_fp1616(screenInfo.screens[0]->y);
}
}
#endif
WriteReplyToClient(client, sizeof(xXIQueryPointerReply), &rep);
if (buttons)
WriteToClient(client, buttons_size, buttons);
free(buttons);
return Success;
}
/***********************************************************************
*
* This procedure writes the reply for the XIQueryPointer function,
* if the client and server have a different byte ordering.
*
*/
void
SRepXIQueryPointer(ClientPtr client, int size, xXIQueryPointerReply * rep)
{
swaps(&rep->sequenceNumber);
swapl(&rep->length);
swapl(&rep->root);
swapl(&rep->child);
swapl(&rep->root_x);
swapl(&rep->root_y);
swapl(&rep->win_x);
swapl(&rep->win_y);
swaps(&rep->buttons_len);
WriteToClient(client, size, rep);
}