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tty_win32.js
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164 lines (130 loc) · 3.41 KB
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node
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tty_win32.js
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var
binding
=
process
.
binding
(
'stdio'
)
,
Stream
=
require
(
'stream'
)
.
Stream
,
inherits
=
require
(
'util'
)
.
inherits
,
writeTTY
=
binding
.
writeTTY
,
closeTTY
=
binding
.
closeTTY
;
function
ReadStream
(
fd
)
{
if
(
!
(
this
instanceof
ReadStream
)
)
return
new
ReadStream
(
fd
)
;
Stream
.
call
(
this
)
;
var
self
=
this
;
this
.
fd
=
fd
;
this
.
paused
=
true
;
this
.
readable
=
true
;
var
dataListeners
=
this
.
listeners
(
'data'
)
,
dataUseString
=
false
;
function
onError
(
err
)
{
self
.
emit
(
'error'
,
err
)
;
}
function
onKeypress
(
char
,
key
)
{
self
.
emit
(
'keypress'
,
char
,
key
)
;
if
(
dataListeners
.
length
&&
char
)
{
self
.
emit
(
'data'
,
dataUseString
?
char
:
new
Buffer
(
char
,
'utf-8'
)
)
;
}
}
function
onResize
(
)
{
process
.
emit
(
'SIGWINCH'
)
;
}
// A windows console stream is always UTF-16, actually
// So it makes no sense to set the encoding, however someone could call
// setEncoding to tell us he wants strings not buffers
this
.
setEncoding
=
function
(
encoding
)
{
dataUseString
=
!
!
encoding
;
}
binding
.
initTTYWatcher
(
fd
,
onError
,
onKeypress
,
onResize
)
;
}
inherits
(
ReadStream
,
Stream
)
;
exports
.
ReadStream
=
ReadStream
;
ReadStream
.
prototype
.
isTTY
=
true
;
ReadStream
.
prototype
.
pause
=
function
(
)
{
if
(
this
.
paused
)
return
;
this
.
paused
=
true
;
binding
.
stopTTYWatcher
(
)
;
}
;
ReadStream
.
prototype
.
resume
=
function
(
)
{
if
(
!
this
.
readable
)
throw
new
Error
(
'Cannot resume() closed tty.ReadStream.'
)
;
if
(
!
this
.
paused
)
return
;
this
.
paused
=
false
;
binding
.
startTTYWatcher
(
)
;
}
;
ReadStream
.
prototype
.
destroy
=
function
(
)
{
if
(
!
this
.
readable
)
return
;
this
.
readable
=
false
;
binding
.
destroyTTYWatcher
(
)
;
var
self
=
this
;
process
.
nextTick
(
function
(
)
{
try
{
closeTTY
(
self
.
fd
)
;
self
.
emit
(
'close'
)
;
}
catch
(
err
)
{
self
.
emit
(
'error'
,
err
)
;
}
}
)
;
}
;
ReadStream
.
prototype
.
destroySoon
=
ReadStream
.
prototype
.
destroy
;
function
WriteStream
(
fd
)
{
if
(
!
(
this
instanceof
WriteStream
)
)
return
new
WriteStream
(
fd
)
;
Stream
.
call
(
this
)
;
var
self
=
this
;
this
.
fd
=
fd
;
this
.
writable
=
true
;
}
inherits
(
WriteStream
,
Stream
)
;
exports
.
WriteStream
=
WriteStream
;
WriteStream
.
prototype
.
isTTY
=
true
;
WriteStream
.
prototype
.
write
=
function
(
data
,
encoding
)
{
if
(
!
this
.
writable
)
{
throw
new
Error
(
'stream not writable'
)
;
}
if
(
Buffer
.
isBuffer
(
data
)
)
{
data
=
data
.
toString
(
'utf-8'
)
;
}
try
{
writeTTY
(
this
.
fd
,
data
)
;
}
catch
(
err
)
{
this
.
emit
(
'error'
,
err
)
;
}
return
true
;
}
;
WriteStream
.
prototype
.
end
=
function
(
data
,
encoding
)
{
if
(
data
)
{
this
.
write
(
data
,
encoding
)
;
}
this
.
destroy
(
)
;
}
;
WriteStream
.
prototype
.
destroy
=
function
(
)
{
if
(
!
this
.
writable
)
return
;
this
.
writable
=
false
;
var
self
=
this
;
process
.
nextTick
(
function
(
)
{
var
closed
=
false
;
try
{
closeTTY
(
self
.
fd
)
;
closed
=
true
;
}
catch
(
err
)
{
self
.
emit
(
'error'
,
err
)
;
}
if
(
closed
)
{
self
.
emit
(
'close'
)
;
}
}
)
;
}
;
WriteStream
.
prototype
.
moveCursor
=
function
(
dx
,
dy
)
{
if
(
!
this
.
writable
)
throw
new
Error
(
'Stream not writable'
)
;
binding
.
moveCursor
(
this
.
fd
,
dx
,
dy
)
;
}
;
WriteStream
.
prototype
.
cursorTo
=
function
(
x
,
y
)
{
if
(
!
this
.
writable
)
throw
new
Error
(
'Stream not writable'
)
;
binding
.
cursorTo
(
this
.
fd
,
x
,
y
)
;
}
;
WriteStream
.
prototype
.
clearLine
=
function
(
direction
)
{
if
(
!
this
.
writable
)
throw
new
Error
(
'Stream not writable'
)
;
binding
.
clearLine
(
this
.
fd
,
direction
||
0
)
;
}
;
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