xserver

xserver with xephyr scale patch
git clone https://git.neptards.moe/u3shit/xserver.git
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ungrdevb.c (5018B)

      1 /************************************************************
      2 
      3 Copyright 1989, 1998  The Open Group
      4 
      5 Permission to use, copy, modify, distribute, and sell this software and its
      6 documentation for any purpose is hereby granted without fee, provided that
      7 the above copyright notice appear in all copies and that both that
      8 copyright notice and this permission notice appear in supporting
      9 documentation.
     10 
     11 The above copyright notice and this permission notice shall be included in
     12 all copies or substantial portions of the Software.
     13 
     14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     20 
     21 Except as contained in this notice, the name of The Open Group shall not be
     22 used in advertising or otherwise to promote the sale, use or other dealings
     23 in this Software without prior written authorization from The Open Group.
     24 
     25 Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
     26 
     27 			All Rights Reserved
     28 
     29 Permission to use, copy, modify, and distribute this software and its
     30 documentation for any purpose and without fee is hereby granted,
     31 provided that the above copyright notice appear in all copies and that
     32 both that copyright notice and this permission notice appear in
     33 supporting documentation, and that the name of Hewlett-Packard not be
     34 used in advertising or publicity pertaining to distribution of the
     35 software without specific, written prior permission.
     36 
     37 HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
     38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
     39 HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
     40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
     41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
     42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
     43 SOFTWARE.
     44 
     45 ********************************************************/
     46 
     47 /***********************************************************************
     48  *
     49  * Request to release a grab of a button on an extension device.
     50  *
     51  */
     52 
     53 #ifdef HAVE_DIX_CONFIG_H
     54 #include <dix-config.h>
     55 #endif
     56 
     57 #include "inputstr.h"           /* DeviceIntPtr      */
     58 #include "windowstr.h"          /* window structure  */
     59 #include <X11/extensions/XI.h>
     60 #include <X11/extensions/XIproto.h>
     61 #include "exglobals.h"
     62 #include "dixgrabs.h"
     63 
     64 #include "ungrdevb.h"
     65 
     66 #define AllModifiersMask ( \
     67 	ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \
     68 	Mod3Mask | Mod4Mask | Mod5Mask )
     69 
     70 /***********************************************************************
     71  *
     72  * Handle requests from a client with a different byte order.
     73  *
     74  */
     75 
     76 int _X_COLD
     77 SProcXUngrabDeviceButton(ClientPtr client)
     78 {
     79     REQUEST(xUngrabDeviceButtonReq);
     80     swaps(&stuff->length);
     81     REQUEST_SIZE_MATCH(xUngrabDeviceButtonReq);
     82     swapl(&stuff->grabWindow);
     83     swaps(&stuff->modifiers);
     84     return (ProcXUngrabDeviceButton(client));
     85 }
     86 
     87 /***********************************************************************
     88  *
     89  * Release a grab of a button on an extension device.
     90  *
     91  */
     92 
     93 int
     94 ProcXUngrabDeviceButton(ClientPtr client)
     95 {
     96     DeviceIntPtr dev;
     97     DeviceIntPtr mdev;
     98     WindowPtr pWin;
     99     GrabPtr temporaryGrab;
    100     int rc;
    101 
    102     REQUEST(xUngrabDeviceButtonReq);
    103     REQUEST_SIZE_MATCH(xUngrabDeviceButtonReq);
    104 
    105     rc = dixLookupDevice(&dev, stuff->grabbed_device, client, DixGrabAccess);
    106     if (rc != Success)
    107         return rc;
    108     if (dev->button == NULL)
    109         return BadMatch;
    110 
    111     if (stuff->modifier_device != UseXKeyboard) {
    112         rc = dixLookupDevice(&mdev, stuff->modifier_device, client,
    113                              DixReadAccess);
    114         if (rc != Success)
    115             return BadDevice;
    116         if (mdev->key == NULL)
    117             return BadMatch;
    118     }
    119     else
    120         mdev = PickKeyboard(client);
    121 
    122     rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
    123     if (rc != Success)
    124         return rc;
    125 
    126     if ((stuff->modifiers != AnyModifier) &&
    127         (stuff->modifiers & ~AllModifiersMask))
    128         return BadValue;
    129 
    130     temporaryGrab = AllocGrab(NULL);
    131     if (!temporaryGrab)
    132         return BadAlloc;
    133 
    134     temporaryGrab->resource = client->clientAsMask;
    135     temporaryGrab->device = dev;
    136     temporaryGrab->window = pWin;
    137     temporaryGrab->type = DeviceButtonPress;
    138     temporaryGrab->grabtype = XI;
    139     temporaryGrab->modifierDevice = mdev;
    140     temporaryGrab->modifiersDetail.exact = stuff->modifiers;
    141     temporaryGrab->modifiersDetail.pMask = NULL;
    142     temporaryGrab->detail.exact = stuff->button;
    143     temporaryGrab->detail.pMask = NULL;
    144 
    145     DeletePassiveGrabFromList(temporaryGrab);
    146 
    147     FreeGrab(temporaryGrab);
    148     return Success;
    149 }