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WebSVN – planix.SVN – Blame – /os/branches/feature-vt/sys/src/cmd/vnc/kbds.c – Rev 2

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#include	<u.h>
2 
#include	<libc.h>
3 
#include	"compat.h"
4 
#include	"kbd.h"
5 
#include   "ksym2utf.h"
6 
 
7 
enum
8 
{
9 
	VKSpecial = 0xff00,
10 
 
11 
	/*
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	 * plan 9 key mappings
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	 */
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	Spec=		0xF800,
15 
 
16 
	PF=		Spec|0x20,	/* num pad function key */
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	View=		Spec|0x00,	/* view (shift window up) */
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	KF=		0xF000,	/* function key (begin Unicode private space) */
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	Shift=		Spec|0x60,
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	Break=		Spec|0x61,
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	Ctrl=		Spec|0x62,
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	Latin=		Spec|0x63,
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	Caps=		Spec|0x64,
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	Num=		Spec|0x65,
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	Middle=		Spec|0x66,
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	No=		0x00,		/* peter */
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28 
	Home=		KF|13,
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	Up=		KF|14,
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	Pgup=		KF|15,
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	Print=		KF|16,
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	Left=		KF|17,
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	Right=		KF|18,
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	End=		'\r',
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	Down=		View,
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	Pgdown=		KF|19,
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	Ins=		KF|20,
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	Del=		0x7F,
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	Scroll=		KF|21,
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	Esc = 0x1b,
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	Delete = 0x7f,
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};
44 
 
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static Rune vnckeys[] =
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{
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[0x00]	No,	No,	No,	No,	No,	No,	No,	No,
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[0x08]	'\b',	'\t',	'\r',	No,	No,	'\n',	No,	No,
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[0x10]	No,	No,	No,	No,	Scroll,	No,	No,	No,
50 
[0x18]	No,	No,	No,	Esc,	No,	No,	No,	No,
51 
[0x20]	No,	No,	No,	No,	No,	No,	No,	No,
52 
[0x28]	No,	No,	No,	No,	No,	No,	No,	No,
53 
[0x30]	No,	No,	No,	No,	No,	No,	No,	No,
54 
[0x38]	No,	No,	No,	No,	No,	No,	No,	No,
55 
[0x40]	No,	No,	No,	No,	No,	No,	No,	No,
56 
[0x48]	No,	No,	No,	No,	No,	No,	No,	No,
57 
[0x50]	Home,	Left,	Up,	Right,	Down,	Pgup,	Pgdown,	No,
58 
[0x58]	No,	No,	No,	No,	No,	No,	No,	No,
59 
[0x60]	No,	Print,	No,	Ins,	No,	No,	No,	No,
60 
[0x68]	No,	No,	No,	Break,	No,	No,	No,	No,
61 
[0x70]	No,	No,	No,	No,	No,	No,	No,	No,
62 
[0x78]	No,	No,	No,	No,	No,	No,	No,	Num,
63 
[0x80]	No,	No,	No,	No,	No,	No,	No,	No,
64 
[0x88]	No,	No,	No,	No,	No,	No,	No,	No,
65 
[0x90]	No,	No,	No,	No,	No,	No,	No,	No,
66 
[0x98]	No,	No,	No,	No,	No,	No,	No,	No,
67 
[0xa0]	No,	No,	No,	No,	No,	No,	No,	No,
68 
[0xa8]	No,	No,	'*',	'+',	No,	'-',	'.',	'/',
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[0xb0]	'0',	'1',	'2',	'3',	'4',	'5',	'6',	'7',
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[0xb8]	'8',	'9',	No,	No,	No,	'=',	No,	No,
71 
[0xc0]	No,	No,	No,	No,	No,	No,	No,	No,
72 
[0xc8]	No,	No,	No,	No,	No,	No,	No,	No,
73 
[0xd0]	No,	No,	No,	No,	No,	No,	No,	No,
74 
[0xd8]	No,	No,	No,	No,	No,	No,	No,	No,
75 
[0xe0]	No,	Shift,	Shift,	Ctrl,	Ctrl,	Caps,	Caps,	No,
76 
[0xe8]	No,	Latin,	Latin,	No,	No,	No,	No,	No,
77 
[0xf0]	No,	No,	No,	No,	No,	No,	No,	No,
78 
[0xf8]	No,	No,	No,	No,	No,	No,	No,	Delete,
79 
};
80 
 
81 
/*
82 
 *  keyboard interrupt
83 
 */
84 
void
85 
vncputc(int keyup, int c)
86 
{
87 
	int i;
88 
	static int esc1, esc2;
89 
	static int alt, caps, ctl, num, shift;
90 
	static int collecting, nk;
91 
	static Rune kc[5];
92 
 
93 
	if(caps && c<='z' && c>='a')
94 
		c += 'A' - 'a';
95 
 
96 
	/*
97 
 	 *  character mapping
98 
	 */
99 
	if((c & VKSpecial) == VKSpecial){
100 
		c = vnckeys[c & 0xff];
101 
		if(c == No)
102 
			return;
103 
	}
104 
	/*
105 
	 * map an xkeysym onto a utf-8 char
106 
	 */
107 
	if((c & 0xff00) && c < nelem(ksym2utf) && ksym2utf[c] != 0)
108 
			c = ksym2utf[c];
109 
 
110 
	/*
111 
	 *  keyup only important for shifts
112 
	 */
113 
	if(keyup){
114 
		switch(c){
115 
		case Latin:
116 
			alt = 0;
117 
			break;
118 
		case Shift:
119 
			shift = 0;
120 
			break;
121 
		case Ctrl:
122 
			ctl = 0;
123 
			break;
124 
		}
125 
		return;
126 
	}
127 
 
128 
	/*
129 
 	 *  normal character
130 
	 */
131 
	if(!(c & (Spec|KF))){
132 
		if(ctl){
133 
			c &= 0x1f;
134 
		}
135 
		if(!collecting){
136 
			kbdputc(c);
137 
			return;
138 
		}
139 
		kc[nk++] = c;
140 
		c = latin1(kc, nk);
141 
		if(c < -1)	/* need more keystrokes */
142 
			return;
143 
		if(c != -1)	/* valid sequence */
144 
			kbdputc(c);
145 
		else	/* dump characters */
146 
			for(i=0; i<nk; i++)
147 
				kbdputc(kc[i]);
148 
		nk = 0;
149 
		collecting = 0;
150 
		return;
151 
	}else{
152 
		switch(c){
153 
		case Caps:
154 
			caps ^= 1;
155 
			return;
156 
		case Num:
157 
			num ^= 1;
158 
			return;
159 
		case Shift:
160 
			shift = 1;
161 
			return;
162 
		case Latin:
163 
			alt = 1;
164 
			collecting = 1;
165 
			nk = 0;
166 
			return;
167 
		case Ctrl:
168 
			ctl = 1;
169 
			return;
170 
		}
171 
	}
172 
	kbdputc(c);
173 
}