1/*
2
3Copyright 1988, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included
12in all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
18OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20OTHER DEALINGS IN THE SOFTWARE.
21
22Except as contained in this notice, the name of The Open Group shall
23not be used in advertising or otherwise to promote the sale, use or
24other dealings in this Software without prior written authorization
25from The Open Group.
26
27*/
28
29#ifndef _WQ_H
30#define _WQ_H
31
32/*
33 * Input is parsed and a work queue is built that is executed later.  This
34 * allows us to swap keys as well as ensure that we don't mess up the keyboard
35 * by doing a partial rebind.
36 */
37
38enum opcode { doKeycode, doAddModifier, doRemoveModifier, doClearModifier,
39	      doPointer };
40
41struct op_generic {
42    enum opcode type;			/* oneof enum opcode */
43    union op *next;			/* next element in list or NULL */
44};
45
46
47/*
48 * keycode KEYCODE = KEYSYM
49 * keysym OLDKEYSYM = NEWKEYSYM
50 *
51 * want to eval the OLDKEYSYM before executing the work list so that it isn't
52 * effected by any assignments.
53 */
54
55struct op_keycode {
56    enum opcode type;			/* doKeycode */
57    union op *next;			/* next element in list or NULL */
58    KeyCode target_keycode;		/* key to which we are assigning */
59    int count;				/* number of new keysyms */
60    KeySym *keysyms;			/* new values to insert */
61};
62
63
64/*
65 * add MODIFIER = KEYSYM ...
66 */
67
68struct op_addmodifier {
69    enum opcode type;			/* doAddModifier */
70    union op *next;			/* next element in list or NULL */
71    int modifier;			/* index into modifier list */
72    int count;				/* number of keysyms */
73    KeySym *keysyms;			/* new values to insert */
74};
75
76
77/*
78 * remove MODIFIER = OLDKEYSYM ...
79 *
80 * want to eval the OLDKEYSYM before executing the work list so that it isn't
81 * effected by any assignments.
82 */
83
84struct op_removemodifier {
85    enum opcode type;			/* doRemoveModifier */
86    union op *next;			/* next element in list or NULL */
87    int modifier;			/* index into modifier list */
88    int count;				/* number of keysyms */
89    KeyCode *keycodes;			/* old values to remove */
90};
91
92
93/*
94 * clear MODIFIER
95 */
96
97struct op_clearmodifier {
98    enum opcode type;			/* doClearModifier */
99    union op *next;			/* next element in list or NULL */
100    int modifier;			/* index into modifier list */
101};
102
103/*
104 * pointer = NUMBER ...
105 *
106 * set pointer map to the positive numbers given on the right hand side
107 */
108
109#define MAXBUTTONCODES 256		/* there are eight bits of buttons */
110
111struct op_pointer {
112    enum opcode type;			/* doPointer */
113    union op *next;			/* next element in list or NULL */
114    int count;				/* number of new button codes */
115    unsigned char button_codes[MAXBUTTONCODES];
116};
117
118
119/*
120 * all together now
121 */
122union op {
123    struct op_generic generic;
124    struct op_keycode keycode;
125    struct op_addmodifier addmodifier;
126    struct op_removemodifier removemodifier;
127    struct op_clearmodifier clearmodifier;
128    struct op_pointer pointer;
129};
130
131extern struct wq {
132    union op *head;
133    union op *tail;
134} work_queue;
135
136
137extern struct modtab {
138    const char *name;
139    int length;
140    int value;
141} modifier_table[];
142
143#define AllocStruct(s) (malloc (sizeof (s)))
144
145#define MAXKEYSYMNAMESIZE 80		/* absurdly large */
146
147#endif
148