mirror of
https://github.com/antos-rde/antosdk-apps.git
synced 2024-12-25 19:58:21 +01:00
315 lines
11 KiB
CoffeeScript
315 lines
11 KiB
CoffeeScript
class WVNC
|
|
constructor: (args) ->
|
|
@socket = undefined
|
|
@ws = undefined
|
|
@canvas = undefined
|
|
worker = "pkg://libwvnc/decoder.js".asFileHandle().getlink()
|
|
@scale = 1.0
|
|
@ws = args.ws if args.ws
|
|
@canvas = args.element
|
|
@canvas = document.getElementById @canvas if typeof @canvas is 'string'
|
|
libjpeg = args.libjpeg if args.libjpeg
|
|
@decoder = new Worker worker
|
|
@enableEvent = true
|
|
me = @
|
|
@mouseMask = 0
|
|
@decoder.postMessage {libjpeg: libjpeg}
|
|
@decoder.onmessage = (e) ->
|
|
me.process e.data
|
|
init: () ->
|
|
me = @
|
|
return new Promise (r, e) ->
|
|
return e('Canvas is not set') if not me.canvas
|
|
# fix keyboard event problem
|
|
$(me.canvas).attr 'tabindex', '1'
|
|
me.initInputEvent()
|
|
r()
|
|
|
|
initInputEvent: () ->
|
|
me = @
|
|
return unless @canvas
|
|
getMousePos = (e) ->
|
|
rect = me.canvas.getBoundingClientRect()
|
|
pos=
|
|
x: Math.floor((e.clientX - rect.left) / me.scale)
|
|
y: Math.floor((e.clientY - rect.top) / me.scale)
|
|
return pos
|
|
|
|
sendMouseLocation = (e) ->
|
|
return unless me.enableEvent
|
|
p = getMousePos e
|
|
me.sendPointEvent p.x, p.y, me.mouseMask
|
|
|
|
return unless me.canvas
|
|
me.canvas.oncontextmenu = (e) ->
|
|
e.preventDefault()
|
|
return false
|
|
|
|
me.canvas.onmousemove = (e) -> sendMouseLocation e
|
|
|
|
me.canvas.onmousedown = (e) ->
|
|
state = 1 << e.button
|
|
me.mouseMask = me.mouseMask | state
|
|
sendMouseLocation e
|
|
#e.preventDefault()
|
|
|
|
me.canvas.onmouseup = (e) ->
|
|
state = 1 << e.button
|
|
me.mouseMask = me.mouseMask & (~state)
|
|
sendMouseLocation e
|
|
#e.preventDefault()
|
|
|
|
me.canvas.onkeydown = me.canvas.onkeyup = (e) ->
|
|
# get the key code
|
|
keycode = e.keyCode
|
|
#console.log e
|
|
switch keycode
|
|
when 8 then code = 0xFF08 #back space
|
|
when 9 then code = 0xff89 #0xFF09 # tab ?
|
|
when 13 then code = 0xFF0D # return
|
|
when 27 then code = 0xFF1B # esc
|
|
when 46 then code = 0xFFFF # delete to verify
|
|
when 38 then code = 0xFF52 # up
|
|
when 40 then code = 0xFF54 # down
|
|
when 37 then code = 0xFF51 # left
|
|
when 39 then code = 0xFF53 # right
|
|
when 91 then code = 0xFFE7 # meta left
|
|
when 93 then code = 0xFFE8 # meta right
|
|
when 16 then code = 0xFFE1 # shift left
|
|
when 17 then code = 0xFFE3 # ctrl left
|
|
when 18 then code = 0xFFE9 # alt left
|
|
when 20 then code = 0xFFE5 # capslock
|
|
when 113 then code = 0xFFBF # f2
|
|
when 112 then code = 0xFFBE # f1
|
|
when 114 then code = 0xFFC0 # f3
|
|
when 115 then code = 0xFFC1 # f4
|
|
when 116 then code = 0xFFC2 # f5
|
|
when 117 then code = 0xFFC3 # f6
|
|
when 118 then code = 0xFFC4 # f7
|
|
when 119 then code = 0xFFC5 # f8
|
|
when 120 then code = 0xFFC6 # f9
|
|
when 121 then code = 0xFFC7 # f10
|
|
when 122 then code = 0xFFC8 # f11
|
|
when 123 then code = 0xFFC9 # f12
|
|
else
|
|
code = e.key.charCodeAt(0) #if not e.ctrlKey and not e.altKey
|
|
#if ((keycode > 47 and keycode < 58) or (keycode > 64 and keycode < 91) or (keycode > 95 and keycode < 112) or (keycode > 185 and keycode < 193) or (keycode > 218 && keycode < 223))
|
|
# code = e.key.charCodeAt(0)
|
|
#else
|
|
# code = keycode
|
|
e.preventDefault()
|
|
return unless code
|
|
if e.type is "keydown"
|
|
me.sendKeyEvent code, 1
|
|
else if e.type is "keyup"
|
|
me.sendKeyEvent code, 0
|
|
|
|
# mouse wheel event
|
|
@canvas.addEventListener 'wheel', (e) ->
|
|
return unless me.enableEvent
|
|
#if (e.deltaY < 0) # up
|
|
p = getMousePos e
|
|
e.preventDefault()
|
|
if e.deltaY < 0
|
|
me.sendPointEvent p.x, p.y, 8
|
|
me.sendPointEvent p.x, p.y, 0
|
|
return
|
|
me.sendPointEvent p.x, p.y, 16
|
|
me.sendPointEvent p.x, p.y, 0
|
|
# paste event
|
|
@canvas.onpaste = (e) ->
|
|
return unless me.enableEvent
|
|
pastedText = undefined
|
|
if window.clipboardData and window.clipboardData.getData #IE
|
|
pastedText = window.clipboardData.getData 'Text'
|
|
else if e.clipboardData and e.clipboardData.getData
|
|
pastedText = e.clipboardData.getData 'text/plain'
|
|
return false unless pastedText
|
|
e.preventDefault()
|
|
me.sendTextAsClipboard pastedText
|
|
# global event
|
|
fn = (e) =>
|
|
@disconnect(true)
|
|
|
|
window.addEventListener "unload", fn
|
|
window.addEventListener "beforeunload", fn
|
|
|
|
initCanvas: (w, h , d) ->
|
|
me = @
|
|
@depth = d
|
|
@canvas.width = w
|
|
@canvas.height = h
|
|
@resolution =
|
|
w: w,
|
|
h: h,
|
|
depth: @depth
|
|
@decoder.postMessage @resolution
|
|
me.canvas.style.cursor = "none"
|
|
@setScale @scale
|
|
|
|
process: (msg) ->
|
|
if not @socket
|
|
return
|
|
data = new Uint8Array msg.pixels
|
|
#w = @buffer.width * @scale
|
|
#h = @buffer.height * @scale
|
|
ctx = @canvas.getContext "2d", { alpha: false }
|
|
imgData = ctx.createImageData msg.w, msg.h
|
|
imgData.data.set data
|
|
ctx.putImageData imgData, msg.x, msg.y
|
|
|
|
|
|
setScale: (n) ->
|
|
@scale = n
|
|
return unless @canvas
|
|
@canvas.style.transformOrigin = '0 0'
|
|
@canvas.style.transform = 'scale(' + n + ')'
|
|
|
|
|
|
connect: (url, args) ->
|
|
me = @
|
|
@socket.close() if @socket
|
|
return unless @ws
|
|
@socket = new WebSocket @ws
|
|
@socket.binaryType = "arraybuffer"
|
|
@socket.onopen = () ->
|
|
console.log "socket opened"
|
|
me.initConnection(url, args)
|
|
|
|
@socket.onmessage = (e) ->
|
|
me.consume e
|
|
@socket.onclose = () ->
|
|
me.socket = null
|
|
me.canvas.style.cursor = "auto"
|
|
me.canvas.getContext('2d').clearRect 0,0, me.resolution.w, me.resolution.h if me.canvas and me.resolution
|
|
console.log "socket closed"
|
|
|
|
disconnect: (close_worker) ->
|
|
@socket.close() if @socket
|
|
@decoder.terminate() if @decoder and close_worker
|
|
|
|
initConnection: (vncserver, params) ->
|
|
#vncserver = "192.168.1.20:5901"
|
|
data = new Uint8Array vncserver.length + 3
|
|
data[0] = 32 # bbp
|
|
###
|
|
flag:
|
|
0: raw data no compress
|
|
1: jpeg no compress
|
|
###
|
|
data[1] = 1
|
|
data[2] = 50 # jpeg quality
|
|
if params
|
|
data[0] = params.bbp if params.bbp
|
|
data[1] = params.flag if params.flag
|
|
data[2] = params.quality if params.quality
|
|
## rate in milisecond
|
|
|
|
data.set (new TextEncoder()).encode(vncserver), 3
|
|
@socket.send(@buildCommand 0x01, data)
|
|
|
|
sendPointEvent: (x, y, mask) ->
|
|
return unless @socket
|
|
data = new Uint8Array 5
|
|
data[0] = x & 0xFF
|
|
data[1] = x >> 8
|
|
data[2] = y & 0xFF
|
|
data[3] = y >> 8
|
|
data[4] = mask
|
|
@socket.send( @buildCommand 0x05, data )
|
|
|
|
sendKeyEvent: (code, v) ->
|
|
#console.log code, v
|
|
return unless @socket
|
|
return unless @enableEvent
|
|
data = new Uint8Array 3
|
|
data[0] = code & 0xFF
|
|
data[1] = code >> 8
|
|
data[2] = v
|
|
@socket.send( @buildCommand 0x06, data )
|
|
|
|
buildCommand: (hex, o) ->
|
|
data = undefined
|
|
switch typeof o
|
|
when 'string'
|
|
data = (new TextEncoder()).encode(o)
|
|
when 'number'
|
|
data = new Uint8Array [o]
|
|
else
|
|
data = o
|
|
cmd = new Uint8Array data.length + 3
|
|
cmd[0] = hex
|
|
cmd[2] = data.length >> 8
|
|
cmd[1] = data.length & 0x0F
|
|
cmd.set data, 3
|
|
#console.log "the command is", cmd.buffer
|
|
return cmd.buffer
|
|
|
|
oncopy: (text) ->
|
|
console.log "Get clipboard text: " + text
|
|
|
|
onpassword: () ->
|
|
return new Promise (resolve, reject) ->
|
|
reject("onpassword is not implemented")
|
|
|
|
sendTextAsClipboard: (text) ->
|
|
return unless @socket
|
|
console.log "send ", text
|
|
@socket.send (@buildCommand 0x07, text)
|
|
|
|
oncredential: () ->
|
|
return new Promise (resolve, reject) ->
|
|
reject("oncredential is not implemented")
|
|
|
|
onerror: (m) ->
|
|
console.log "Error", m
|
|
|
|
onresize: () ->
|
|
console.log "resize"
|
|
|
|
consume: (e) ->
|
|
data = new Uint8Array e.data
|
|
cmd = data[0]
|
|
me = @
|
|
switch cmd
|
|
when 0xFE #error
|
|
data = data.subarray 1, data.length - 1
|
|
dec = new TextDecoder("utf-8")
|
|
@onerror dec.decode(data)
|
|
when 0x81
|
|
console.log "Request for password"
|
|
@enableEvent = false
|
|
@onpassword().then (pass) ->
|
|
me.socket.send (me.buildCommand 0x02, pass)
|
|
me.enableEvent = true
|
|
when 0x82
|
|
console.log "Request for login"
|
|
@enableEvent = false
|
|
@oncredential().then (user, pass) ->
|
|
arr = new Uint8Array user.length + pass.length + 1
|
|
arr.set (new TextEncoder()).encode(user), 0
|
|
arr.set ['\0'], user.length
|
|
arr.set (new TextEncoder()).encode(pass), user.length + 1
|
|
me.socket.send(me.buildCommand 0x03, arr)
|
|
me.enableEvent = true
|
|
when 0x83
|
|
w = data[1] | (data[2]<<8)
|
|
h = data[3] | (data[4]<<8)
|
|
depth = data[5]
|
|
@initCanvas w, h, depth
|
|
# status command for ack
|
|
@socket.send(@buildCommand 0x04, 1)
|
|
@onresize()
|
|
when 0x84
|
|
# send data to web assembly for decoding
|
|
@decoder.postMessage data.buffer, [data.buffer]
|
|
when 0x85
|
|
# clipboard data from server
|
|
data = data.subarray 1
|
|
dec = new TextDecoder "utf-8"
|
|
@oncopy dec.decode data
|
|
@socket.send(@buildCommand 0x04, 1)
|
|
else
|
|
console.log cmd
|
|
|
|
window.WVNC = WVNC |