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IABSD.fr/xenocara/xserver/Xi/xiquerypointer.c
matthieu
- xserver/Xi/xiquerypointer.c
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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); }