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
SProcXUngrabDeviceButton(ClientPtr client)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
ProcXUngrabDeviceButton(ClientPtr client)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 }
150