1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/*****************************************************************************
* win.c: Windows specific functions
*****************************************************************************
* Copyright (C) 2007-2012 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_charset.h>
#include "../vlc.h"
#include "../libs.h"
#if !VLC_WINSTORE_APP
/* Based on modules/control/rc.c and include/vlc_interface.h */
static HANDLE GetConsole( lua_State *L )
{
/* Get the file descriptor of the console input */
HANDLE hConsoleIn = GetStdHandle(STD_INPUT_HANDLE);
if( hConsoleIn == INVALID_HANDLE_VALUE )
luaL_error( L, "couldn't find user input handle" );
return hConsoleIn;
}
#define MAX_LINE_LENGTH 1024
static bool ReadWin32( HANDLE *hConsoleIn, unsigned char *p_buffer, int *pi_size )
{
INPUT_RECORD input_record;
DWORD i_dw;
// Prefer to fail early when there's not enough space to store a 4 bytes
// UTF8 character. The function will be immediately called again and we won't
// lose an input
while( *pi_size < MAX_LINE_LENGTH - 4 &&
ReadConsoleInput( hConsoleIn, &input_record, 1, &i_dw ) )
{
if( input_record.EventType != KEY_EVENT ||
!input_record.Event.KeyEvent.bKeyDown ||
input_record.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT ||
input_record.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL||
input_record.Event.KeyEvent.wVirtualKeyCode == VK_MENU ||
input_record.Event.KeyEvent.wVirtualKeyCode == VK_CAPITAL )
{
/* nothing interesting */
continue;
}
if( input_record.Event.KeyEvent.uChar.AsciiChar == '\n' ||
input_record.Event.KeyEvent.uChar.AsciiChar == '\r' )
{
putc( '\n', stdout );
p_buffer[*pi_size] = '\n';
(*pi_size)++;
break;
}
switch( input_record.Event.KeyEvent.uChar.AsciiChar )
{
case '\b':
if ( *pi_size == 0 )
break;
if ( *pi_size > 1 && (p_buffer[*pi_size - 1] & 0xC0) == 0x80 )
{
// pi_size currently points to the character to be written, so
// we need to roll back from 2 bytes to start erasing the previous
// character
(*pi_size) -= 2;
unsigned int nbBytes = 1;
while( *pi_size > 0 && (p_buffer[*pi_size] & 0xC0) == 0x80 )
{
(*pi_size)--;
nbBytes++;
}
assert( clz( (unsigned char)~(p_buffer[*pi_size]) ) == nbBytes + 1 );
// The first utf8 byte will be overriden by a \0
}
else
(*pi_size)--;
p_buffer[*pi_size] = 0;
fputs( "\b \b", stdout );
break;
default:
{
WCHAR psz_winput[] = { input_record.Event.KeyEvent.uChar.UnicodeChar, L'\0' };
char* psz_input = FromWide( psz_winput );
int input_size = strlen(psz_input);
if ( *pi_size + input_size > MAX_LINE_LENGTH )
{
p_buffer[ *pi_size ] = 0;
return false;
}
strcpy( (char*)&p_buffer[*pi_size], psz_input );
utf8_fprintf( stdout, "%s", psz_input );
free(psz_input);
*pi_size += input_size;
}
}
}
p_buffer[ *pi_size ] = 0;
return true;
}
static int vlclua_console_init( lua_State *L )
{
(void)L;
//if ( !AllocConsole() )
// luaL_error( L, "failed to allocate windows console" );
AllocConsole();
freopen( "CONOUT$", "w", stdout );
freopen( "CONOUT$", "w", stderr );
freopen( "CONIN$", "r", stdin );
return 0;
}
static int vlclua_console_wait( lua_State *L )
{
int i_timeout = (int)luaL_optinteger( L, 1, 0 );
DWORD status = WaitForSingleObject( GetConsole( L ), i_timeout );
lua_pushboolean( L, status == WAIT_OBJECT_0 );
return 1;
}
static int vlclua_console_read( lua_State *L )
{
char psz_buffer[MAX_LINE_LENGTH+1];
int i_size = 0;
ReadWin32( GetConsole( L ), (unsigned char*)psz_buffer, &i_size );
lua_pushlstring( L, psz_buffer, i_size );
return 1;
}
static int vlclua_console_write( lua_State *L )
{
if( !lua_isstring( L, 1 ) )
return luaL_error( L, "win.console_write usage: (text)" );
const char* psz_line = luaL_checkstring( L, 1 );
utf8_fprintf( stdout, "%s", psz_line );
return 0;
}
/*****************************************************************************
*
*****************************************************************************/
static const luaL_Reg vlclua_win_reg[] = {
{ "console_init", vlclua_console_init },
{ "console_wait", vlclua_console_wait },
{ "console_read", vlclua_console_read },
{ "console_write", vlclua_console_write },
{ NULL, NULL }
};
void luaopen_win( lua_State *L )
{
lua_newtable( L );
luaL_register( L, NULL, vlclua_win_reg );
lua_setfield( L, -2, "win" );
}
#endif /* !VLC_WINSTORE_APP */
|
