X-Git-Url: https://jasonwoof.com/gitweb/?p=watch-my-terminal.git;a=blobdiff_plain;f=server.coffee;h=f79fe33108c099279a42e4d2f9b94350562e6fe1;hp=d66b6cd1c60b8b8d143903189734f688a3b3b91e;hb=HEAD;hpb=bd8f5b58663dd5870827c1d0dfa4f8eff8f6a5f0

diff --git a/server.coffee b/server.coffee
index d66b6cd..f79fe33 100644
--- a/server.coffee
+++ b/server.coffee
@@ -1,3 +1,14 @@
+# 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) ->
 	reply_err = (req, res, msg) ->
 		res.writeHead(200, 'Content-Type': 'text/plain')
@@ -12,6 +23,9 @@ handler = (req, res) ->
 		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'
@@ -35,9 +49,8 @@ io = require('socket.io').listen(app)
 fs = require('fs')
 terminal = require('./terminal.coffee')
 
-# SETTINGS
-app.listen(9293)
-term = terminal.new(104, 66)
+app.listen(http_port)
+term = terminal.new(term_columns, term_lines)
 
 sockets = []
 
@@ -49,7 +62,61 @@ io.sockets.on 'connection', (socket) ->
 				sockets.splice i, 1
 				return
 
-	socket.emit 'init', width: term.width, height: term.height, x: term.x, y: term.y, a: term.a, text: term.text, attributes: term.attributes
+
+	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'