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Merge branch 'master' into domscroll_try2

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This commit is contained in:
Florian Mounier
2015-04-08 15:13:02 +02:00
parent 75cd2a267a 1df84b3ee6
commit 287cbf4e82
44 changed files with 1550 additions and 979 deletions
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36
coffees/ext/alarm.coffee Normal file
View File

@@ -0,0 +1,36 @@
set_alarm = (notification) ->
alarm = (data) ->
butterfly.element.classList.remove 'alarm'
note = "New activity on butterfly terminal [#{ butterfly.title }]"
if notification
new Notification(
note,
body: data.data,
icon: '/static/images/favicon.png')
else
alert(note + '\n' + data.data)
butterfly.ws.removeEventListener 'message', alarm
butterfly.ws.addEventListener 'message', alarm
butterfly.element.classList.add 'alarm'
cancel = (ev) ->
ev.preventDefault() if ev.preventDefault
ev.stopPropagation() if ev.stopPropagation
ev.cancelBubble = true
false
document.addEventListener 'keydown', (e) ->
return true unless e.altKey and e.keyCode is 65
if Notification and Notification.permission is 'default'
Notification.requestPermission ->
set_alarm(Notification.permission is 'granted')
else
set_alarm(Notification.permission is 'granted')
cancel(e)

41
coffees/ext/clipboard.coffee Normal file
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@@ -0,0 +1,41 @@
# *-* coding: utf-8 *-*
# This file is part of butterfly
#
# butterfly Copyright (C) 2014 Florian Mounier
# 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 3 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, see <http://www.gnu.org/licenses/>.
document.addEventListener 'copy', copy = (e) ->
butterfly.bell "copied"
e.clipboardData.clearData()
sel = getSelection().toString().replace(
/\u00A0/g, ' ').replace(/\u2007/g, ' ')
data = ''
for line in sel.split('\n')
if line.slice(-1) is '\u23CE'
end = ''
line = line.slice(0, -1)
else
end = '\n'
data += line.replace(/\s*$/, '') + end
e.clipboardData.setData 'text/plain', data.slice(0, -1)
e.preventDefault()
document.addEventListener 'paste', (e) ->
butterfly.bell "pasted"
data = e.clipboardData.getData 'text/plain'
data = data.replace(/\r\n/g, '\n').replace(/\n/g, '\r')
butterfly.send data
e.preventDefault()

28
coffees/selection.coffee → coffees/ext/selection.coffee
View File

@@ -16,6 +16,12 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
selection = null
cancel = (ev) ->
ev.preventDefault() if ev.preventDefault
ev.stopPropagation() if ev.stopPropagation
ev.cancelBubble = true
false
previous_leaf = (node) ->
previous = node.previousSibling
if not previous
@@ -38,7 +44,7 @@ next_leaf = (node) ->
class Selection
constructor: ->
term.element.classList.add('selection')
butterfly.element.classList.add('selection')
@selection = getSelection()
reset: ->
@@ -68,11 +74,11 @@ class Selection
@selection.removeAllRanges()
destroy: ->
term.element.classList.remove('selection')
butterfly.element.classList.remove('selection')
@clear()
text: ->
@selection.toString()
@selection.toString().replace(/\u00A0/g, ' ').replace(/\u2007/g, ' ')
up: ->
@go -1
@@ -81,12 +87,12 @@ class Selection
@go +1
go: (n) ->
index = term.children.indexOf(@start_line) + n
return unless 0 <= index < term.children.length
index = butterfly.children.indexOf(@start_line) + n
return unless 0 <= index < butterfly.children.length
until term.children[index].textContent.match /\S/
until butterfly.children[index].textContent.match /\S/
index += n
return unless 0 <= index < term.children.length
return unless 0 <= index < butterfly.children.length
@select_line index
@@ -98,7 +104,7 @@ class Selection
@selection.addRange range
select_line: (index) ->
line = term.children[index]
line = butterfly.children[index]
line_start =
node: line.firstChild
offset: 0
@@ -170,7 +176,7 @@ document.addEventListener 'keydown', (e) ->
# Paste natural selection too if shiftkey
if e.shiftKey and e.keyCode is 13 and
not selection and not getSelection().isCollapsed
term.handler getSelection().toString()
butterfly.send getSelection().toString()
getSelection().removeAllRanges()
return cancel e
@@ -200,7 +206,7 @@ document.addEventListener 'keydown', (e) ->
# Start selection mode with shift up
if not selection and e.ctrlKey and e.shiftKey and e.keyCode == 38
selection = new Selection()
selection.select_line term.y - 1
selection.select_line butterfly.y - 1
selection.apply()
return cancel e
true
@@ -210,7 +216,7 @@ document.addEventListener 'keyup', (e) ->
if selection
if e.keyCode == 13
term.handler selection.text()
butterfly.send selection.text()
selection.destroy()
selection = null
return cancel e

8
coffees/virtual_input.coffee → coffees/ext/virtual_input.coffee
View File

@@ -49,7 +49,7 @@ if /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i
alt = true
virtual_input.addEventListener 'keydown', (e) ->
term.keyDown(e)
butterfly.keyDown(e)
return true
virtual_input.addEventListener 'input', (e) ->
@@ -57,7 +57,7 @@ if /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i
if len == 0
e.keyCode = 8
term.keyDown e
butterfly.keyDown e
@value = '0'
return true
@@ -69,12 +69,12 @@ if /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i
e.altKey = alt
if e.keyCode >= 97 && e.keyCode <= 122
e.keyCode -= 32
term.keyDown e
butterfly.keyDown e
@value = '0'
ctrl = alt = false
return true
term.keyPress e
butterfly.keyPress e
first = false
@value = '0'
true

112
coffees/main.coffee
View File

@@ -21,72 +21,74 @@ open_ts = (new Date()).getTime()
$ = document.querySelectorAll.bind(document)
send = (data) ->
ws.send 'S' + data
document.addEventListener 'DOMContentLoaded', ->
ctl = (type, args...) ->
params = args.join(',')
if type == 'Resize'
ws.send 'R' + params
send = (data) ->
ws.send 'S' + data
if location.protocol == 'https:'
ws_url = 'wss://'
else
ws_url = 'ws://'
ctl = (type, args...) ->
params = args.join(',')
if type == 'Resize'
ws.send 'R' + params
ws_url += document.location.host + '/ws' + location.pathname
ws = new WebSocket ws_url
if location.protocol == 'https:'
ws_url = 'wss://'
else
ws_url = 'ws://'
ws.addEventListener 'open', ->
console.log "WebSocket open", arguments
ws.send 'R' + term.cols + ',' + term.rows
open_ts = (new Date()).getTime()
ws_url += document.location.host + '/ws' + location.pathname
ws = new WebSocket ws_url
ws.addEventListener 'error', ->
console.log "WebSocket error", arguments
ws.addEventListener 'open', ->
console.log "WebSocket open", arguments
ws.send 'R' + term.cols + ',' + term.rows
open_ts = (new Date()).getTime()
ws.addEventListener 'message', (e) ->
setTimeout ->
term.write e.data
, 1
ws.addEventListener 'error', ->
console.log "WebSocket error", arguments
ws.addEventListener 'close', ->
console.log "WebSocket closed", arguments
setTimeout ->
term.write 'Closed'
# Allow quick reload
term.skipNextKey = true
term.element.classList.add('dead')
, 1
quit = true
# Don't autoclose if websocket didn't last 1 minute
if (new Date()).getTime() - open_ts > 60 * 1000
open('','_self').close()
ws.addEventListener 'message', (e) ->
setTimeout ->
term.write e.data
, 1
term = new Terminal $('#wrapper')[0], send, ctl
addEventListener 'beforeunload', ->
if not quit
'This will exit the terminal session'
ws.addEventListener 'close', ->
console.log "WebSocket closed", arguments
setTimeout ->
term.write 'Closed'
# Allow quick reload
term.skipNextKey = true
term.element.classList.add('dead')
, 1
quit = true
# Don't autoclose if websocket didn't last 1 minute
if (new Date()).getTime() - open_ts > 60 * 1000
open('','_self').close()
bench = (n=100000000) ->
rnd = ''
while rnd.length < n
rnd += Math.random().toString(36).substring(2)
term = new Terminal $('#wrapper')[0], send, ctl
addEventListener 'beforeunload', ->
if not quit
'This will exit the terminal session'
t0 = (new Date()).getTime()
term.write rnd
console.log "#{n} chars in #{(new Date()).getTime() - t0} ms"
bench = (n=100000000) ->
rnd = ''
while rnd.length < n
rnd += Math.random().toString(36).substring(2)
t0 = (new Date()).getTime()
term.write rnd
console.log "#{n} chars in #{(new Date()).getTime() - t0} ms"
cbench = (n=100000000) ->
rnd = ''
while rnd.length < n
rnd += "\x1b[#{30 + parseInt(Math.random() * 20)}m"
rnd += Math.random().toString(36).substring(2)
cbench = (n=100000000) ->
rnd = ''
while rnd.length < n
rnd += "\x1b[#{30 + parseInt(Math.random() * 20)}m"
rnd += Math.random().toString(36).substring(2)
t0 = (new Date()).getTime()
term.write rnd
console.log "#{n} chars + colors in #{(new Date()).getTime() - t0} ms"
t0 = (new Date()).getTime()
term.write rnd
console.log "#{n} chars + colors in #{(new Date()).getTime() - t0} ms"
window.butterfly = term
term.ws = ws
window.butterfly = term

300
coffees/term.coffee
View File

@@ -52,12 +52,15 @@ class Terminal
@context = @parent.ownerDocument.defaultView
@document = @parent.ownerDocument
@body = @document.getElementsByTagName('body')[0]
@html_escapes_enabled = @body.getAttribute('data-allow-html') is 'yes'
@native_scroll = @body.getAttribute('data-native-scroll') is 'yes'
# Main terminal element
@element = @document.createElement('div')
@element.className = 'terminal focus'
@element.style.outline = 'none'
@element.setAttribute 'tabindex', 0
@element.setAttribute 'spellcheck', 'false'
@parent.appendChild(@element)
@@ -68,16 +71,18 @@ class Terminal
@children = [div]
@compute_char_size()
div.style.height = @char_size.height + 'px' unless @native_scroll
term_size = @parent.getBoundingClientRect()
@cols = Math.floor(term_size.width / @char_size.width)
@rows = Math.floor(term_size.height / @char_size.height)
@element.style['padding-bottom'] = "#{
term_size.height % @char_size.height}px"
px = term_size.height % @char_size.height
@element.style['padding-bottom'] = "#{px}px"
@html = {}
i = @rows - 1
while i--
div = @document.createElement('div')
div.style.height = @char_size.height + 'px' unless @native_scroll
div.className = 'line'
@element.appendChild(div)
@children.push(div)
@@ -93,6 +98,8 @@ class Terminal
@last_cc = 0
@reset_vars()
@refresh 0, @rows - 1 unless @native_scroll
@focus()
@startBlink()
@@ -100,7 +107,6 @@ class Terminal
addEventListener 'keypress', @keyPress.bind(@)
addEventListener 'focus', @focus.bind(@)
addEventListener 'blur', @blur.bind(@)
addEventListener 'paste', @paste.bind(@)
addEventListener 'resize', @resize.bind(@)
# Horrible Firefox paste workaround
@@ -111,19 +117,23 @@ class Terminal
if sel.startOffset is sel.endOffset
getSelection().removeAllRanges()
# @initmouse()
@initmouse() unless @native_scroll
setTimeout(@resize.bind(@), 100)
reset_vars: ->
# @ybase = 0
# @ydisp = 0
@x = 0
@y = 0
@cursorHidden = false
@state = State.normal
@queue = ''
@ybase = 0
@ydisp = 0
unless @native_scroll
@scrollTop = 0
@scrollBottom = @rows - 1
# modes
@applicationKeypad = false
@applicationCursor = false
@@ -174,13 +184,6 @@ class Terminal
@element.classList.add('blur')
@element.classList.remove('focus')
paste: (ev) ->
if ev.clipboardData
@send ev.clipboardData.getData('text/plain')
else if @context.clipboardData
@send @context.clipboardData.getData('Text')
cancel(ev)
# XTerm mouse events
# http://invisible-island.net/xterm/ctlseqs/ctlseqs.html#Mouse%20Tracking
# To better understand these
@@ -375,30 +378,30 @@ class Terminal
return if @x10Mouse
sendButton ev
else
return if @applicationKeypad
return true
return true if @applicationKeypad or @native_scroll
@scroll_display if ev.deltaY > 0 then 5 else -5
cancel ev
refresh: (start, end) ->
if end - start >= 3
if not @native_scroll and end - start >= @rows / 3
parent = @element.parentNode
parent?.removeChild @element
# @missing_lines = Math.min(@missing_lines, @rows - 1)
if @missing_lines
for i in [1..@missing_lines]
@new_line()
@missing_lines = 0
if @native_scroll
if @missing_lines
for i in [1..@missing_lines]
@new_line()
@missing_lines = 0
end = Math.min(end, @screen.length - 1)
for j in [start..end]
line = @screen[j]
line = @screen[row + @ydisp]
out = ""
if j is @y and not @cursorHidden
if j is @y and not @cursorHidden and (
@native_scroll or @ydisp is @ybase or @selectMode)
x = @x
else
x = -Infinity
@@ -450,7 +453,9 @@ class Terminal
when ">"
out += "&gt;"
else
if ch <= " "
if ch == " "
out += '<span class="nbsp">\u2007</span>'
else if ch <= " "
out += "&nbsp;"
else
i++ if "\uff00" < ch < "\uffef"
@@ -461,10 +466,12 @@ class Terminal
@children[j].innerHTML = out
parent?.appendChild @element
for l, html of @html
@element.insertBefore(html, @children[l])
@html = {}
@parent.scrollTop = @parent.scrollHeight
if @native_scroll
for l, html of @html
@element.insertBefore(html, @children[l])
@html = {}
@parent.scrollTop = @parent.scrollHeight
_cursorBlink: ->
@@ -496,15 +503,55 @@ class Terminal
scroll: ->
@screen.shift()
@screen.push @blank_line()
@refreshStart = Math.max(@refreshStart - 1, 0)
@missing_lines++
if @missing_lines >= @rows
@refresh 0, @rows - 1
if @native_scroll
@screen.shift()
@screen.push @blank_line()
@refreshStart = Math.max(@refreshStart - 1, 0)
@missing_lines++
if @missing_lines >= @rows
@refresh 0, @rows - 1
else
if ++@ybase is @scrollback
@ybase = @ybase / 2 | 0
@screen = @screen.slice(-(@ybase + @rows) + 1)
@ydisp = @ybase
# last line
row = @ybase + @rows - 1
# subtract the bottom scroll region
row -= @rows - 1 - @scrollBottom
if row is @screen.length
# potential optimization:
# pushing is faster than splicing
# when they amount to the same
# behavior.
@screen.push @blankLine()
else
# add our new line
@screen.splice row, 0, @blankLine()
if @scrollTop isnt 0
if @ybase isnt 0
@ybase--
@ydisp = @ybase
@screen.splice @ybase + @scrollTop, 1
@updateRange @scrollTop
@updateRange @scrollBottom
scroll_display: (disp) ->
@parent.scrollTop += disp * @char_size.height
if @native_scroll
@parent.scrollTop += disp * @char_size.height
else
@ydisp += disp
if @ydisp > @ybase
@ydisp = @ybase
else
@ydisp = 0 if @ydisp < 0
@refresh 0, @rows - 1
new_line: ->
div = @document.createElement('div')
@@ -518,7 +565,7 @@ class Terminal
next_line: ->
@y++
if @y >= @rows
if @y >= (if @native_scroll then @rows else @scrollBottom)
@y--
@scroll()
@@ -526,6 +573,11 @@ class Terminal
@refreshStart = @y
@refreshEnd = @y
unless @native_scroll
if @ybase isnt @ydisp
@ydisp = @ybase
@maxRange()
i = 0
l = data.length
while i < l
@@ -572,17 +624,19 @@ class Terminal
if ch >= " "
ch = @charset[ch] if @charset?[ch]
if @x >= @cols
@lines[@y + @ybase][@x] = [@curAttr, '\u23CE']
@x = 0
@next_line()
@screen[@y][@x] = [@curAttr, ch]
@screen[@y + @ybase][@x] = [@curAttr, ch]
@x++
@updateRange @y
if "\uff00" < ch < "\uffef"
if @cols < 2 or @x >= @cols
@screen[@y][@x - 1] = [@curAttr, " "]
@screen[@y + @ybase][@x - 1] = [@curAttr, " "]
break
@screen[@y][@x] = [@curAttr, " "]
@screen[@y + @ybase][@x] = [@curAttr, " "]
@x++
when State.escaped
@@ -765,20 +819,11 @@ class Terminal
i++ if ch is "\x1b"
@params.push @currentParam
switch @params[0]
when 0, 1 , 2
when 0, 1, 2
if @params[1]
@title = @params[1] + " - ƸӜƷ butterfly"
@handleTitle @title
when 99
# Custom escape to produce raw html
html = document.createElement('div')
html.innerHTML = @params[1]
@next_line()
@html[@y] = html
@updateRange @y
@next_line()
# reset colors
@params = []
@currentParam = 0
@@ -967,7 +1012,6 @@ class Terminal
# CSI Ps ; Ps ; Ps ; Ps ; Ps T
# CSI > Ps; Ps T
when "T"
""
@scrollDown @params if @params.length < 2 and not @prefix
# CSI Ps Z
@@ -1004,7 +1048,54 @@ class Terminal
switch @prefix
# User-Defined Keys (DECUDK).
when ""
break
# Disabling this for now as we need a good script
# striper to avoid malicious script injection
pt = @currentParam
unless pt[0] is ';'
console.error "Unknown DECUDK: #{pt}"
break
pt = pt.slice(1)
[type, content] = pt.split('|', 2)
unless content
console.error "No type for inline DECUDK: #{pt}"
break
switch type
when "HTML"
unless @html_escapes_enabled
console.log "HTML escapes are disabled"
break
html = "<div class=\"inline-html\">" + content + "</div>"
if @native_scroll
@next_line()
@html[@y] = html
@updateRange @y
@next_line()
else
@lines[@y + @ybase][@x] = [
@curAttr
html
]
line = 0
while line < @get_html_height_in_lines(html) - 1
@y++
if @y > @scrollBottom
@y--
@scroll()
line++
when "PROMPT"
@send content
when "TEXT"
l += content.length
data = data.slice(0, i + 1) + content + data.slice(i + 1)
else
console.error "Unknown type #{type} for DECUDK"
# Request Status String (DECRQSS).
# test: echo -e '\eP$q"p\e\\'
@@ -1302,6 +1393,10 @@ class Terminal
@leavePrefix()
return cancel(ev)
if not @native_scroll and @selectMode
@keySelect ev, key
return cancel(ev)
@showCursor()
@handler(key)
cancel ev
@@ -1347,11 +1442,11 @@ class Terminal
@queue += data
bell: ->
bell: (cls="bell")->
return unless @visualBell
@element.classList.add "bell"
@element.classList.add cls
@t_bell = setTimeout (=>
@element.classList.remove "bell"
@element.classList.remove cls
), @visualBell
resize: ->
@@ -1361,8 +1456,8 @@ class Terminal
term_size = @parent.getBoundingClientRect()
@cols = Math.floor(term_size.width / @char_size.width)
@rows = Math.floor(term_size.height / @char_size.height)
@element.style['padding-bottom'] = "#{
term_size.height % @char_size.height}px"
@element.style['padding-bottom'] = "#{term_size.height %
@char_size.height}px"
if old_cols == @cols and old_rows == @rows
return
@@ -1457,6 +1552,8 @@ class Terminal
@updateRange y
eraseLeft: (x, y) ->
unless @native_scroll
y += @ybase
line = @screen[y]
# xterm
ch = [@eraseAttr(), " "]
@@ -1465,6 +1562,8 @@ class Terminal
@updateRange y
eraseLine: (y) ->
unless @native_scroll
y += @ybase
@eraseRight 0, y
blank_line: (cur) ->
@@ -1472,7 +1571,7 @@ class Terminal
ch = [attr, " "]
line = []
i = 0
while i < @cols
while i < @cols + 1
line[i] = ch
i++
line
@@ -1499,23 +1598,21 @@ class Terminal
# ESC M Reverse Index (RI is 0x8d).
reverseIndex: ->
console.log('TODO: Reverse index')
# @y--
# if @y < @scrollTop
# @y++
unless @native_scroll
@y--
if @y < @scrollTop
@y++
# possibly move the code below to term.reverseScroll();
# test: echo -ne '\e[1;1H\e[44m\eM\e[0m'
# blank_line(true) is xterm/linux behavior
@screen.splice @y + @ybase, 0, @blank_line(true)
j = @rows - 1 - @scrollBottom
@screen.splice @rows - 1 + @ybase - j + 1, 1
# # possibly move the code below to term.reverseScroll();
# # test: echo -ne '\e[1;1H\e[44m\eM\e[0m'
# # blank_line(true) is xterm/linux behavior
# @screen.splice @y, 0, @blank_line(true)
# j = @rows - 1 - @scrollBottom
# @screen.splice @rows - 1 - j + 1, 1
# # @maxRange();
# @updateRange @scrollTop
# @updateRange @scrollBottom
@updateRange @scrollTop
@updateRange @scrollBottom
@state = State.normal
# ESC c Full Reset (RIS).
reset: ->
@reset_vars()
@@ -1845,7 +1942,7 @@ class Terminal
insertChars: (params) ->
param = params[0]
param = 1 if param < 1
row = @y
row = @y + @ybase
j = @x
# xterm
ch = [@eraseAttr(), " "]
@@ -1889,39 +1986,48 @@ class Terminal
insertLines: (params) ->
param = params[0]
param = 1 if param < 1
row = @y + @ybase
while param--
@screen.splice @y, 0, @blank_line(true)
@screen.pop()
@screen.splice row, 0, @blank_line(true)
# blank_line(true) - xterm/linux behavior
if @native_scroll
@screen.pop()
else
j = @rows - 1 - @scrollBottom
j = @rows - 1 + @ybase - j + 1
@screen.splice j, 1
@updateRange @y
@updateRange @screen.length - 1
@updateRange if @native_scroll then @screen.length - 1 else @scrollBottom
# CSI Ps M
# Delete Ps Line(s) (default = 1) (DL).
deleteLines: (params) ->
param = params[0]
param = 1 if param < 1
row = @y + @ybase
while param--
# test: echo -e '\e[44m\e[1M\e[0m'
# blank_line(true) - xterm/linux behavior
@screen.push @blank_line(true)
if @native_scroll
@screen.push @blank_line(true)
else
j = @rows - 1 - @scrollBottom
j = @rows - 1 + @ybase - j
@screen.splice j + 1, 0, @blankLine(true)
@screen.splice @y, 1
@updateRange @y
@updateRange @screen.length - 1
@updateRange if @native_scroll then @screen.length - 1 else @scrollBottom
# CSI Ps P
# Delete Ps Character(s) (default = 1) (DCH).
deleteChars: (params) ->
param = params[0]
param = 1 if param < 1
row = @y
row = @y + @ybase
# xterm
ch = [@eraseAttr(), " "]
while param--
@@ -1934,7 +2040,7 @@ class Terminal
eraseChars: (params) ->
param = params[0]
param = 1 if param < 1
row = @y
row = @y + @ybase
j = @x
# xterm
ch = [@eraseAttr(), " "]
@@ -2377,24 +2483,26 @@ class Terminal
# CSI Ps S Scroll up Ps lines (default = 1) (SU).
scrollUp: (params) ->
# param = params[0] or 1
# while param--
# @lines.splice @ybase + @scrollTop, 1
# @lines.splice @ybase + @scrollBottom, 0, @blank_line()
return if @native_scroll
param = params[0] or 1
while param--
@screen.splice @ybase + @scrollTop, 1
@screen.splice @ybase + @scrollBottom, 0, @blank_line()
# @updateRange @scrollTop
# @updateRange @scrollBottom
@updateRange @scrollTop
@updateRange @scrollBottom
# CSI Ps T Scroll down Ps lines (default = 1) (SD).
scrollDown: (params) ->
# param = params[0] or 1
# while param--
# @lines.splice @ybase + @scrollBottom, 1
# @lines.splice @ybase + @scrollTop, 0, @blank_line()
return if @native_scroll
param = params[0] or 1
while param--
@screen.splice @ybase + @scrollBottom, 1
@screen.splice @ybase + @scrollTop, 0, @blank_line()
# @updateRange @scrollTop
# @updateRange @scrollBottom
@updateRange @scrollTop
@updateRange @scrollBottom
# CSI Ps ; Ps ; Ps ; Ps ; Ps T
@@ -2967,3 +3075,5 @@ class Terminal
Swedish: null # (H or (7
Swiss: null # (=
ISOLatin: null # /A
window.Terminal = Terminal