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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 | * Request to select input from 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/XI2.h> | |
61 | #include <X11/extensions/XIproto.h> | |
62 | #include "exevents.h" | |
63 | #include "exglobals.h" | |
64 | ||
65 | #include "grabdev.h" | |
66 | #include "selectev.h" | |
67 | ||
68 | extern Mask ExtExclusiveMasks[]; | |
69 | ||
70 | static int | |
71 | HandleDevicePresenceMask(ClientPtr client, WindowPtr win, | |
72 | XEventClass * cls, CARD16 *count) | |
73 | { | |
74 | int i, j; | |
75 | Mask mask; | |
76 | ||
77 | /* We use the device ID 256 to select events that aren't bound to | |
78 | * any device. For now we only handle the device presence event, | |
79 | * but this could be extended to other events that aren't bound to | |
80 | * a device. | |
81 | * | |
82 | * In order not to break in CreateMaskFromList() we remove the | |
83 | * entries with device ID 256 from the XEventClass array. | |
84 | */ | |
85 | ||
86 | mask = 0; | |
87 | for (i = 0, j = 0; i < *count; i++) { | |
88 | if (cls[i] >> 8 != 256) { | |
89 | cls[j] = cls[i]; | |
90 | j++; | |
91 | continue; | |
92 | } | |
93 | ||
94 | switch (cls[i] & 0xff) { | |
95 | case _devicePresence: | |
96 | mask |= DevicePresenceNotifyMask; | |
97 | break; | |
98 | } | |
99 | } | |
100 | ||
101 | *count = j; | |
102 | ||
103 | if (mask == 0) | |
104 | return Success; | |
105 | ||
106 | /* We always only use mksidx = AllDevices for events not bound to | |
107 | * devices */ | |
108 | if (AddExtensionClient(win, client, mask, XIAllDevices) != Success) | |
109 | return BadAlloc; | |
110 | ||
111 | RecalculateDeviceDeliverableEvents(win); | |
112 | ||
113 | return Success; | |
114 | } | |
115 | ||
116 | /*********************************************************************** | |
117 | * | |
118 | * Handle requests from clients with a different byte order. | |
119 | * | |
120 | */ | |
121 | ||
122 | int | |
123 | SProcXSelectExtensionEvent(ClientPtr client) | |
124 | { | |
125 | REQUEST(xSelectExtensionEventReq); | |
126 | swaps(&stuff->length); | |
127 | REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq); | |
128 | swapl(&stuff->window); | |
129 | swaps(&stuff->count); | |
130 | REQUEST_FIXED_SIZE(xSelectExtensionEventReq, stuff->count * sizeof(CARD32)); | |
131 | SwapLongs((CARD32 *) (&stuff[1]), stuff->count); | |
132 | ||
133 | return (ProcXSelectExtensionEvent(client)); | |
134 | } | |
135 | ||
136 | /*********************************************************************** | |
137 | * | |
138 | * This procedure selects input from an extension device. | |
139 | * | |
140 | */ | |
141 | ||
142 | int | |
143 | ProcXSelectExtensionEvent(ClientPtr client) | |
144 | { | |
145 | int ret; | |
146 | int i; | |
147 | WindowPtr pWin; | |
148 | struct tmask tmp[EMASKSIZE]; | |
149 | ||
150 | REQUEST(xSelectExtensionEventReq); | |
151 | REQUEST_AT_LEAST_SIZE(xSelectExtensionEventReq); | |
152 | ||
153 | if (stuff->length != | |
154 | bytes_to_int32(sizeof(xSelectExtensionEventReq)) + stuff->count) | |
155 | return BadLength; | |
156 | ||
157 | ret = dixLookupWindow(&pWin, stuff->window, client, DixReceiveAccess); | |
158 | if (ret != Success) | |
159 | return ret; | |
160 | ||
161 | if (HandleDevicePresenceMask(client, pWin, (XEventClass *) &stuff[1], | |
162 | &stuff->count) != Success) | |
163 | return BadAlloc; | |
164 | ||
165 | if ((ret = CreateMaskFromList(client, (XEventClass *) &stuff[1], | |
166 | stuff->count, tmp, NULL, | |
167 | X_SelectExtensionEvent)) != Success) | |
168 | return ret; | |
169 | ||
170 | for (i = 0; i < EMASKSIZE; i++) | |
171 | if (tmp[i].dev != NULL) { | |
172 | if (tmp[i].mask & ~XIAllMasks) { | |
173 | client->errorValue = tmp[i].mask; | |
174 | return BadValue; | |
175 | } | |
176 | if ((ret = | |
177 | SelectForWindow((DeviceIntPtr) tmp[i].dev, pWin, client, | |
178 | tmp[i].mask, ExtExclusiveMasks[i])) != Success) | |
179 | return ret; | |
180 | } | |
181 | ||
182 | return Success; | |
183 | } |