Enter grabs are checked for in CheckMotion(), each time the sprite window changes the current grab is deactivated (if applicable) and the new grab is activated (if applicable). Exception - if the grab is on a parent window of the current window since we keep the grab across descendants. Since CheckMotion() may change the grab status of a device, we mustn't get "dev->deviceGrab.grab" in ProcessOtherEvents until after CheckMotion(). FocusIn grabs are checked in much the same manner. The event delivery for grabs replaces the NotifyNormal on window change with a NotifyGrab on window change. Note that this happens before the grab activates, so the EnterNotify(NotifyGrab) is still delivered to the window, not to the grabbing client. This is in line with the core protocol semantics for NotifyGrab events. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
318 lines
9.0 KiB
C
318 lines
9.0 KiB
C
/*
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* Copyright © 2009 Red Hat, Inc.
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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
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*/
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/***********************************************************************
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*
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* Request to grab or ungrab 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 "inputstr.h" /* DeviceIntPtr */
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#include "windowstr.h" /* window structure */
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#include <X11/extensions/XI2.h>
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#include <X11/extensions/XI2proto.h>
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#include "swaprep.h"
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#include "exglobals.h" /* BadDevice */
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#include "exevents.h"
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#include "xipassivegrab.h"
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#include "dixgrabs.h"
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int
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SProcXIPassiveGrabDevice(ClientPtr client)
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{
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int i;
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char n;
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xXIModifierInfo *mods;
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REQUEST(xXIPassiveGrabDeviceReq);
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swaps(&stuff->length, n);
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swaps(&stuff->deviceid, n);
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swapl(&stuff->grab_window, n);
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swapl(&stuff->cursor, n);
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swapl(&stuff->time, n);
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swapl(&stuff->detail, n);
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swaps(&stuff->mask_len, n);
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swaps(&stuff->num_modifiers, n);
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mods = (xXIModifierInfo*)&stuff[1];
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for (i = 0; i < stuff->num_modifiers; i++, mods++)
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{
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swapl(&mods->base_mods, n);
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swapl(&mods->latched_mods, n);
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swapl(&mods->locked_mods, n);
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}
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return ProcXIPassiveGrabDevice(client);
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}
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int
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ProcXIPassiveGrabDevice(ClientPtr client)
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{
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DeviceIntPtr dev, mod_dev;
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xXIPassiveGrabDeviceReply rep;
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int i, ret = Success;
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uint8_t status;
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uint32_t *modifiers;
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xXIGrabModifierInfo *modifiers_failed;
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GrabMask mask;
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GrabParameters param;
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void *tmp;
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REQUEST(xXIPassiveGrabDeviceReq);
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REQUEST_AT_LEAST_SIZE(xXIPassiveGrabDeviceReq);
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ret = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
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if (ret != Success)
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return ret;
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if (stuff->grab_type != XIGrabtypeButton &&
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stuff->grab_type != XIGrabtypeKeysym &&
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stuff->grab_type != XIGrabtypeEnter &&
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stuff->grab_type != XIGrabtypeFocusIn)
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{
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client->errorValue = stuff->grab_type;
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return BadValue;
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}
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if ((stuff->grab_type == XIGrabtypeEnter ||
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stuff->grab_type == XIGrabtypeFocusIn) && stuff->detail != 0)
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{
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client->errorValue = stuff->detail;
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return BadValue;
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}
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/* Can't grab for modifiers on an attached slave device */
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if (!IsMaster(dev))
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{
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if (!dev->u.master)
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stuff->paired_device_mode = GrabModeAsync;
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else if (dev->u.master && stuff->num_modifiers)
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return BadDevice;
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}
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if ((stuff->mask_len * 4) > XI_LASTEVENT)
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{
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unsigned char *bits = (unsigned char*)&stuff[1];
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for (i = XI_LASTEVENT; i < stuff->mask_len * 4; i++)
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{
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if (BitIsOn(bits, i))
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return BadValue;
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}
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}
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memset(mask.xi2mask, 0, sizeof(mask.xi2mask));
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memcpy(mask.xi2mask[stuff->deviceid], &stuff[1], stuff->mask_len * 4);
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rep.repType = X_Reply;
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rep.RepType = X_XIPassiveGrabDevice;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.num_modifiers = 0;
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memset(¶m, 0, sizeof(param));
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param.ownerEvents = stuff->owner_events;
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param.this_device_mode = stuff->grab_mode;
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param.other_devices_mode = stuff->paired_device_mode;
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param.grabWindow = stuff->grab_window;
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param.cursor = stuff->cursor;
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if (stuff->cursor != None)
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{
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status = dixLookupResourceByType(&tmp, stuff->cursor,
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RT_CURSOR, client, DixUseAccess);
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if (status != Success)
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{
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client->errorValue = stuff->cursor;
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return (status == BadValue) ? BadCursor : status;
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}
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}
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status = dixLookupWindow((WindowPtr*)&tmp, stuff->grab_window, client, DixSetAttrAccess);
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if (status != Success)
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return status;
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status = CheckGrabValues(client, ¶m);
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modifiers = (uint32_t*)&stuff[1] + stuff->mask_len;
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modifiers_failed = xcalloc(stuff->num_modifiers, sizeof(xXIGrabModifierInfo));
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if (!modifiers_failed)
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return BadAlloc;
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if (!IsMaster(dev) && dev->u.master)
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mod_dev = GetMaster(dev, MASTER_KEYBOARD);
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else
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mod_dev = dev;
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for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
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{
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param.modifiers = *modifiers;
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switch(stuff->grab_type)
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{
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case XIGrabtypeButton:
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status = GrabButton(client, dev, mod_dev, stuff->detail,
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¶m, GRABTYPE_XI2, &mask);
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break;
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case XIGrabtypeKeysym:
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status = GrabKey(client, dev, mod_dev, stuff->detail,
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¶m, GRABTYPE_XI2, &mask);
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break;
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case XIGrabtypeEnter:
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case XIGrabtypeFocusIn:
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status = GrabWindow(client, dev, stuff->grab_type,
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¶m, &mask);
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break;
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}
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if (status != GrabSuccess)
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{
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xXIGrabModifierInfo *info = modifiers_failed + rep.num_modifiers;
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info->status = status;
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info->modifiers = *modifiers;
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rep.num_modifiers++;
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rep.length++;
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}
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}
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WriteReplyToClient(client, sizeof(rep), &rep);
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if (rep.num_modifiers)
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{
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client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
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WriteSwappedDataToClient(client, rep.num_modifiers * 4, (char*)modifiers_failed);
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}
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xfree(modifiers_failed);
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return ret;
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}
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void
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SRepXIPassiveGrabDevice(ClientPtr client, int size,
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xXIPassiveGrabDeviceReply * rep)
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{
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char n;
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swaps(&rep->sequenceNumber, n);
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swapl(&rep->length, n);
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swaps(&rep->num_modifiers, n);
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WriteToClient(client, size, (char *)rep);
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}
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int
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SProcXIPassiveUngrabDevice(ClientPtr client)
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{
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char n;
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int i;
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uint32_t *modifiers;
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REQUEST(xXIPassiveUngrabDeviceReq);
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swaps(&stuff->length, n);
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swapl(&stuff->grab_window, n);
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swaps(&stuff->deviceid, n);
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swapl(&stuff->detail, n);
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swaps(&stuff->num_modifiers, n);
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modifiers = (uint32_t*)&stuff[1];
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for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
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swapl(modifiers, n);
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return ProcXIPassiveUngrabDevice(client);
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}
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int
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ProcXIPassiveUngrabDevice(ClientPtr client)
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{
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DeviceIntPtr dev, mod_dev;
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WindowPtr win;
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GrabRec tempGrab;
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uint32_t* modifiers;
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int i, rc;
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REQUEST(xXIPassiveUngrabDeviceReq);
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REQUEST_AT_LEAST_SIZE(xXIPassiveUngrabDeviceReq);
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rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGrabAccess);
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if (rc != Success)
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return rc;
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if (stuff->grab_type != XIGrabtypeButton &&
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stuff->grab_type != XIGrabtypeKeysym &&
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stuff->grab_type != XIGrabtypeEnter &&
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stuff->grab_type != XIGrabtypeFocusIn)
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{
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client->errorValue = stuff->grab_type;
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return BadValue;
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}
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if ((stuff->grab_type == XIGrabtypeEnter ||
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stuff->grab_type == XIGrabtypeFocusIn) && stuff->detail != 0)
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{
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client->errorValue = stuff->detail;
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return BadValue;
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}
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rc = dixLookupWindow(&win, stuff->grab_window, client, DixSetAttrAccess);
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if (rc != Success)
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return rc;
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if (!IsMaster(dev) && dev->u.master)
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mod_dev = GetMaster(dev, MASTER_KEYBOARD);
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else
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mod_dev = dev;
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tempGrab.resource = client->clientAsMask;
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tempGrab.device = dev;
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tempGrab.window = win;
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switch(stuff->grab_type)
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{
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case XIGrabtypeButton: tempGrab.type = XI_ButtonPress; break;
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case XIGrabtypeKeysym: tempGrab.type = XI_KeyPress; break;
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case XIGrabtypeEnter: tempGrab.type = XI_Enter; break;
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case XIGrabtypeFocusIn: tempGrab.type = XI_FocusIn; break;
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}
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tempGrab.grabtype = GRABTYPE_XI2;
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tempGrab.modifierDevice = mod_dev;
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tempGrab.modifiersDetail.pMask = NULL;
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tempGrab.detail.exact = stuff->detail;
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tempGrab.detail.pMask = NULL;
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modifiers = (uint32_t*)&stuff[1];
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for (i = 0; i < stuff->num_modifiers; i++, modifiers++)
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{
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tempGrab.modifiersDetail.exact = *modifiers;
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DeletePassiveGrabFromList(&tempGrab);
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}
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return Success;
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}
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