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a09e091a JB |
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 | * Extension function to close an extension input 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 "scrnintstr.h" /* screen structure */ | |
60 | #include <X11/extensions/XI.h> | |
61 | #include <X11/extensions/XIproto.h> | |
62 | #include "XIstubs.h" | |
63 | #include "exglobals.h" | |
64 | ||
65 | #include "closedev.h" | |
66 | ||
67 | /*********************************************************************** | |
68 | * | |
69 | * This procedure closes an input device. | |
70 | * | |
71 | */ | |
72 | ||
73 | int | |
74 | SProcXCloseDevice(ClientPtr client) | |
75 | { | |
76 | REQUEST(xCloseDeviceReq); | |
77 | swaps(&stuff->length); | |
78 | REQUEST_SIZE_MATCH(xCloseDeviceReq); | |
79 | return (ProcXCloseDevice(client)); | |
80 | } | |
81 | ||
82 | /*********************************************************************** | |
83 | * | |
84 | * Clear out event selections and passive grabs from a window for the | |
85 | * specified device. | |
86 | * | |
87 | */ | |
88 | ||
89 | static void | |
90 | DeleteDeviceEvents(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client) | |
91 | { | |
92 | InputClientsPtr others; | |
93 | OtherInputMasks *pOthers; | |
94 | GrabPtr grab, next; | |
95 | ||
96 | if ((pOthers = wOtherInputMasks(pWin)) != 0) | |
97 | for (others = pOthers->inputClients; others; others = others->next) | |
98 | if (SameClient(others, client)) | |
99 | others->mask[dev->id] = NoEventMask; | |
100 | ||
101 | for (grab = wPassiveGrabs(pWin); grab; grab = next) { | |
102 | next = grab->next; | |
103 | if ((grab->device == dev) && | |
104 | (client->clientAsMask == CLIENT_BITS(grab->resource))) | |
105 | FreeResource(grab->resource, RT_NONE); | |
106 | } | |
107 | } | |
108 | ||
109 | /*********************************************************************** | |
110 | * | |
111 | * Walk througth the window tree, deleting event selections for this client | |
112 | * from this device from all windows. | |
113 | * | |
114 | */ | |
115 | ||
116 | static void | |
117 | DeleteEventsFromChildren(DeviceIntPtr dev, WindowPtr p1, ClientPtr client) | |
118 | { | |
119 | WindowPtr p2; | |
120 | ||
121 | while (p1) { | |
122 | p2 = p1->firstChild; | |
123 | DeleteDeviceEvents(dev, p1, client); | |
124 | DeleteEventsFromChildren(dev, p2, client); | |
125 | p1 = p1->nextSib; | |
126 | } | |
127 | } | |
128 | ||
129 | /*********************************************************************** | |
130 | * | |
131 | * This procedure closes an input device. | |
132 | * | |
133 | */ | |
134 | ||
135 | int | |
136 | ProcXCloseDevice(ClientPtr client) | |
137 | { | |
138 | int rc, i; | |
139 | WindowPtr pWin, p1; | |
140 | DeviceIntPtr d; | |
141 | ||
142 | REQUEST(xCloseDeviceReq); | |
143 | REQUEST_SIZE_MATCH(xCloseDeviceReq); | |
144 | ||
145 | rc = dixLookupDevice(&d, stuff->deviceid, client, DixUseAccess); | |
146 | if (rc != Success) | |
147 | return rc; | |
148 | ||
149 | if (d->deviceGrab.grab && SameClient(d->deviceGrab.grab, client)) | |
150 | (*d->deviceGrab.DeactivateGrab) (d); /* release active grab */ | |
151 | ||
152 | /* Remove event selections from all windows for events from this device | |
153 | * and selected by this client. | |
154 | * Delete passive grabs from all windows for this device. */ | |
155 | ||
156 | for (i = 0; i < screenInfo.numScreens; i++) { | |
157 | pWin = screenInfo.screens[i]->root; | |
158 | DeleteDeviceEvents(d, pWin, client); | |
159 | p1 = pWin->firstChild; | |
160 | DeleteEventsFromChildren(d, p1, client); | |
161 | } | |
162 | ||
163 | return Success; | |
164 | } |