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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/xiwarppointer.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 Warp 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 "scrnintstr.h" /* screen structure */
#include <X11/extensions/XI.h>
#include <X11/extensions/XI2proto.h>
#include "extnsionst.h"
#include "exevents.h"
#include "exglobals.h"
#include "mipointer.h" /* for miPointerUpdateSprite */
#include "xiwarppointer.h"
/***********************************************************************
*
* This procedure allows a client to warp the pointer of a device.
*
*/
int _X_COLD
SProcXIWarpPointer(ClientPtr client)
{
REQUEST(xXIWarpPointerReq);
REQUEST_SIZE_MATCH(xXIWarpPointerReq);
swaps(&stuff->length);
swapl(&stuff->src_win);
swapl(&stuff->dst_win);
swapl(&stuff->src_x);
swapl(&stuff->src_y);
swaps(&stuff->src_width);
swaps(&stuff->src_height);
swapl(&stuff->dst_x);
swapl(&stuff->dst_y);
swaps(&stuff->deviceid);
return (ProcXIWarpPointer(client));
}
int
ProcXIWarpPointer(ClientPtr client)
{
int rc;
int x, y;
WindowPtr dest = NULL;
DeviceIntPtr pDev;
SpritePtr pSprite;
ScreenPtr newScreen;
int src_x, src_y;
int dst_x, dst_y;
REQUEST(xXIWarpPointerReq);
REQUEST_SIZE_MATCH(xXIWarpPointerReq);
/* FIXME: panoramix stuff is missing, look at ProcWarpPointer */
rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixWriteAccess);
if (rc != Success) {
client->errorValue = stuff->deviceid;
return rc;
}
if ((!IsMaster(pDev) && !IsFloating(pDev)) ||
(IsMaster(pDev) && !IsPointerDevice(pDev))) {
client->errorValue = stuff->deviceid;
return BadDevice;
}
if (stuff->dst_win != None) {
rc = dixLookupWindow(&dest, stuff->dst_win, client, DixGetAttrAccess);
if (rc != Success) {
client->errorValue = stuff->dst_win;
return rc;
}
}
pSprite = pDev->spriteInfo->sprite;
x = pSprite->hotPhys.x;
y = pSprite->hotPhys.y;
src_x = stuff->src_x / (double) (1 << 16);
src_y = stuff->src_y / (double) (1 << 16);
dst_x = stuff->dst_x / (double) (1 << 16);
dst_y = stuff->dst_y / (double) (1 << 16);
if (stuff->src_win != None) {
int winX, winY;
WindowPtr src;
rc = dixLookupWindow(&src, stuff->src_win, client, DixGetAttrAccess);
if (rc != Success) {
client->errorValue = stuff->src_win;
return rc;
}
winX = src->drawable.x;
winY = src->drawable.y;
if (src->drawable.pScreen != pSprite->hotPhys.pScreen ||
x < winX + src_x ||
y < winY + src_y ||
(stuff->src_width != 0 &&
winX + src_x + (int) stuff->src_width < 0) ||
(stuff->src_height != 0 &&
winY + src_y + (int) stuff->src_height < y) ||
!PointInWindowIsVisible(src, x, y))
return Success;
}
if (dest) {
x = dest->drawable.x;
y = dest->drawable.y;
newScreen = dest->drawable.pScreen;
}
else
newScreen = pSprite->hotPhys.pScreen;
x += dst_x;
y += dst_y;
if (x < 0)
x = 0;
else if (x > newScreen->width)
x = newScreen->width - 1;
if (y < 0)
y = 0;
else if (y > newScreen->height)
y = newScreen->height - 1;
if (newScreen == pSprite->hotPhys.pScreen) {
if (x < pSprite->physLimits.x1)
x = pSprite->physLimits.x1;
else if (x >= pSprite->physLimits.x2)
x = pSprite->physLimits.x2 - 1;
if (y < pSprite->physLimits.y1)
y = pSprite->physLimits.y1;
else if (y >= pSprite->physLimits.y2)
y = pSprite->physLimits.y2 - 1;
if (pSprite->hotShape)
ConfineToShape(pDev, pSprite->hotShape, &x, &y);
(*newScreen->SetCursorPosition) (pDev, newScreen, x, y, TRUE);
}
else if (!PointerConfinedToScreen(pDev)) {
NewCurrentScreen(pDev, newScreen, x, y);
}
/* if we don't update the device, we get a jump next time it moves */
pDev->last.valuators[0] = x;
pDev->last.valuators[1] = y;
miPointerUpdateSprite(pDev);
if (*newScreen->CursorWarpedTo)
(*newScreen->CursorWarpedTo) (pDev, newScreen, client,
dest, pSprite, x, y);
/* FIXME: XWarpPointer is supposed to generate an event. It doesn't do it
here though. */
return Success;
}