X-Git-Url: https://jasonwoof.com/gitweb/?p=watch-my-terminal.git;a=blobdiff_plain;f=server.coffee;fp=server.coffee;h=06f6aed56f55f4d9dbe5c90517d6d8f655a07664;hp=b5a6ad5e4dff09430c44a252bfdb8b24e69be6a8;hb=37d536e72e3e6fa4de536ad916a0a80119f15509;hpb=238684c497185ba7d18860770dc24096c172562b

diff --git a/server.coffee b/server.coffee
index b5a6ad5..06f6aed 100644
--- a/server.coffee
+++ b/server.coffee
@@ -49,7 +49,50 @@ 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, cursor_visible: term.cursor_visible, scroll_top: term.scroll_top, scroll_bottom: term.scroll_bottom
+
+	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 ''
+
+	a = 0x07
+	state = ''
+	# FIXME handle alt screen
+	for y in [0...term.height]
+		for x in [0...term.width]
+			if term.attributes[y][x] isnt a
+				state += attr_diff a, term.attributes[y][x]
+				a = term.attributes[y][x]
+			state += term.text[y][x]
+		if y < term.height - 1
+			state += '\n'
+	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'