X-Git-Url: https://jasonwoof.com/gitweb/?p=watch-my-terminal.git;a=blobdiff_plain;f=server.coffee;h=f79fe33108c099279a42e4d2f9b94350562e6fe1;hp=3ff15290c9e0755305fd74d5808f1638400dadfc;hb=HEAD;hpb=1700d1f6d76490cd696f9072bf28d595a4e484c5

diff --git a/server.coffee b/server.coffee
index 3ff1529..f79fe33 100644
--- a/server.coffee
+++ b/server.coffee
@@ -1,7 +1,18 @@
+# SETTINGS
+term_columns = 97
+term_lines = 63
+http_port = 2218
+
+if process.argv.length > 2
+	term_columns = parseInt process.argv[2]
+if process.argv.length > 3
+	term_lines = parseInt process.argv[3]
+
+
 handler = (req, res) ->
-	err = (req, res) ->
-		res.writeHead(404, 'Content-Type': 'text/plain')
-		return res.end("Error loading #{req.url}")
+	reply_err = (req, res, msg) ->
+		res.writeHead(200, 'Content-Type': 'text/plain')
+		return res.end("Error loading #{req.url} \"#{msg}\"")
 	switch req.url
 		when '/', '/index.html'
 			filename = __dirname + '/index.html'
@@ -9,22 +20,37 @@ handler = (req, res) ->
 		when '/jquery.js'
 			filename = '/usr/share/javascript/jquery/jquery.min.js'
 			type = 'text/javascript'
+		when '/terminal.js'
+			filename = __dirname + '/terminal.coffee'
+			type = 'text/javascript'
+		when '/htmlterm.js'
+			filename = __dirname + '/htmlterm.coffee'
+			type = 'text/javascript'
+		when '/client.js'
+			filename = __dirname + '/client.coffee'
+			type = 'text/javascript'
 		else
-			return err req, res
-	fs.readFile filename, (err, data) ->
-		return err req, res if err
+			return reply_err req, res
+	fs.readFile filename, 'utf8', (err, data) ->
+		return reply_err req, res, err if err
+
+		if filename.substr(filename.length - 7) is '.coffee'
+			try
+				data = coffee.compile data
+			catch e
+				return reply_err req, res, "server faild to compile #{filename}: #{JSON.stringify(e)}"
 
 		res.writeHead(200, 'Content-Type': type)
 		res.end(data)
 
+coffee = require 'coffee-script'
 app = require('http').createServer(handler)
 io = require('socket.io').listen(app)
 fs = require('fs')
 terminal = require('./terminal.coffee')
 
-# SETTINGS
-app.listen(9293)
-term = terminal.new(105, 66)
+app.listen(http_port)
+term = terminal.new(term_columns, term_lines)
 
 sockets = []
 
@@ -36,12 +62,68 @@ io.sockets.on 'connection', (socket) ->
 				sockets.splice i, 1
 				return
 
+
+	enc_color = (prefix, c) ->
+		if c < 8
+			return "#{prefix}#{c}"
+		if c < 16
+			return "#{prefix + 6}#{c - 8}"
+		return "#{prefix}8;5;#{c}"
+
+	attr_diff = (a, b) ->
+		xo = a ^ b
+		parts = []
+		if (xo & 0xff)
+			parts.push enc_color 3, (b & 0xff)
+		if (xo & 0xff00)
+			parts.push enc_color 4, ((b & 0xff00) >> 8)
+		for [bit, code] in [[0x010000, '1'], [0x200000, '3'], [0x020000, '4'], [0x040000, '5'], [0x080000, '7'], [0x100000, '8']]
+			if (xo & bit)
+				if (b & bit)
+					parts.push code
+				else
+					parts.push '2' + code
+		if parts.length
+			return "\x1b[#{parts.join ';'}m"
+		else
+			return ''
+	encode_screen = (height, width, text, attributes) ->
+		state = ''
+		for y in [0...height]
+			max = width - 1
+			while max >= 0 and text[y][max] is ' ' and (attributes[y][max] & 0x08ff00) is 0
+				max -= 1
+			if max >= 0
+				for x in [0..max]
+					if attributes[y][x] isnt a
+						state += attr_diff a, attributes[y][x]
+						a = attributes[y][x]
+					state += text[y][x]
+			if y < height - 1
+				state += '\n'
+		return state
+
+	a = 0x07
+	state = ''
+	if term.saved_normal_screen?
+		state += encode_screen term.height, term.width, term.saved_normal_screen.text, term.saved_normal_screen.attributes
+		state += "\x1b[#{term.saved_normal_screen.y + 1};#{term.saved_normal_screen.x + 1}H"
+		state += "\x1b[?1049h\x1b[H" # flip to alt screen and move cursor home
+	state += encode_screen term.height, term.width, term.text, term.attributes
+	state += attr_diff a, term.a
+	state += "\x1b[#{term.y + 1};#{term.x + 1}H"
+	unless term.cursor_visible
+		state += "\x1b[?25l"
+	unless term.scroll_top is 0 and term.scroll_bottom is term.height - 1
+		state += "\x1b[#{term.scroll_top};#{term.scroll_bottom}r"
+	socket.emit 'init', width: term.width, height: term.height, text: state
+
 process.stdin.resume()
 process.stdin.setEncoding 'utf8'
 
 process.stdin.on 'data', (data) ->
 	term.update data
 	for s in sockets
-		s.emit 'init', width: term.width, height: term.height, x: term.x, y: term.y, a: term.a, text: term.text, attributes: term.attributes
+		s.emit 'data', data
 
 process.stdin.on 'end', -> process.exit()