X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=server.coffee;h=5beaa97c70a8aafbf14aaf2bcdf5ef2dbd256c78;hb=a5f32e3687419a20da142d86f1d4e4f44b60cb52;hp=06f6aed56f55f4d9dbe5c90517d6d8f655a07664;hpb=37d536e72e3e6fa4de536ad916a0a80119f15509;p=watch-my-terminal.git

diff --git a/server.coffee b/server.coffee
index 06f6aed..5beaa97 100644
--- a/server.coffee
+++ b/server.coffee
@@ -74,18 +74,29 @@ io.sockets.on 'connection', (socket) ->
 			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 = ''
-	# 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'
+	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