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