diff options
Diffstat (limited to 'xorg-server/Xi/xiquerypointer.c')
| -rw-r--r-- | xorg-server/Xi/xiquerypointer.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/xorg-server/Xi/xiquerypointer.c b/xorg-server/Xi/xiquerypointer.c new file mode 100644 index 000000000..93ceba4c3 --- /dev/null +++ b/xorg-server/Xi/xiquerypointer.c @@ -0,0 +1,228 @@ +/* + * 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 "xkbsrv.h" + +#ifdef PANORAMIX +#include "panoramiXsrv.h" +#endif + +#include "xiquerypointer.h" + +/*********************************************************************** + * + * This procedure allows a client to query the pointer of a device. + * + */ + +int +SProcXIQueryPointer(ClientPtr client) +{ + char n; + + REQUEST(xXIQueryPointerReq); + swaps(&stuff->length, n); + swaps(&stuff->deviceid, n); + swapl(&stuff->win, n); + 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 */ + + REQUEST(xXIQueryPointerReq); + REQUEST_SIZE_MATCH(xXIQueryPointerReq); + + rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixReadAccess); + if (rc != Success) + { + client->errorValue = stuff->deviceid; + return rc; + } + + if (pDev->valuator == NULL || IsKeyboardDevice(pDev) || + (!IsMaster(pDev) && pDev->u.master)) /* no attached devices */ + { + client->errorValue = stuff->deviceid; + return BadDevice; + } + + rc = dixLookupWindow(&pWin, stuff->win, client, DixGetAttrAccess); + if (rc != Success) + { + SendErrorToClient(client, IReqCode, X_XIQueryPointer, + stuff->win, rc); + return Success; + } + + if (pDev->valuator->motionHintWindow) + MaybeStopHint(pDev, client); + + if (IsMaster(pDev)) + kbd = GetPairedDevice(pDev); + else + kbd = (pDev->key) ? pDev : NULL; + + pSprite = pDev->spriteInfo->sprite; + + memset(&rep, 0, sizeof(rep)); + rep.repType = X_Reply; + rep.RepType = X_XIQueryPointer; + rep.length = 6; + rep.sequenceNumber = client->sequence; + rep.root = (GetCurrentRootWindow(pDev))->drawable.id; + rep.root_x = FP1616(pSprite->hot.x, 0); + rep.root_y = FP1616(pSprite->hot.y, 0); + rep.child = None; + + if (kbd) + { + state = &kbd->key->xkbInfo->prev_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, down; + rep.buttons_len = bytes_to_int32(bits_to_bytes(pDev->button->numButtons)); + rep.length += rep.buttons_len; + buttons_size = rep.buttons_len * 4; + buttons = xcalloc(1, buttons_size); + if (!buttons) + return BadAlloc; + + down = pDev->button->buttonsDown; + + for (i = 0; i < pDev->button->numButtons && down; i++) + { + if (BitIsOn(pDev->button->down, i)) + { + SetBit(buttons, i); + down--; + } + } + } else + rep.buttons_len = 0; + + if (pSprite->hot.pScreen == pWin->drawable.pScreen) + { + rep.same_screen = xTrue; + rep.win_x = FP1616(pSprite->hot.x - pWin->drawable.x, 0); + rep.win_y = FP1616(pSprite->hot.y - pWin->drawable.y, 0); + 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 += FP1616(panoramiXdataPtr[0].x, 0); + rep.root_y += FP1616(panoramiXdataPtr[0].y, 0); + if (stuff->win == rep.root) + { + rep.win_x += FP1616(panoramiXdataPtr[0].x, 0); + rep.win_y += FP1616(panoramiXdataPtr[0].y, 0); + } + } +#endif + + WriteReplyToClient(client, sizeof(xXIQueryPointerReply), &rep); + if (buttons) + WriteToClient(client, buttons_size, buttons); + + xfree(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) +{ + char n; + + swaps(&rep->sequenceNumber, n); + swapl(&rep->length, n); + swapl(&rep->root, n); + swapl(&rep->child, n); + swapl(&rep->root_x, n); + swapl(&rep->root_y, n); + swapl(&rep->win_x, n); + swapl(&rep->win_y, n); + swaps(&rep->buttons_len, n); + + WriteToClient(client, size, (char *)rep); +} + |