X-Git-Url: https://jasonwoof.com/gitweb/?p=watch-my-terminal.git;a=blobdiff_plain;f=htmlterm.coffee;fp=htmlterm.coffee;h=829f7578f3dde9e6e2b7d1c428ef271d881dc566;hp=0000000000000000000000000000000000000000;hb=9c8a049528fc2d75883a76581635335ed98956a6;hpb=994139f341f1c905996f549d30a35d7e1f8443e9

diff --git a/htmlterm.coffee b/htmlterm.coffee
new file mode 100644
index 0000000..829f757
--- /dev/null
+++ b/htmlterm.coffee
@@ -0,0 +1,140 @@
+class HTMLTerminal
+	timeout: (ms, f) -> setTimeout(f, ms)
+	constructor: (jq_element, width, height) ->
+		@parent_element = jq_element
+		@redraw_wait = false
+		@redraw_again = false
+		@term = window.terminal.new width, height
+		@palette = [
+			# normal colours
+			'2e3436',
+			'cc0000',
+			'4e9a06',
+			'c4a000',
+			'3465a4',
+			'75507b',
+			'06989a',
+			'd3d7cf',
+
+			# brighter versions (for bold, and 16-color sequences)
+			'555753',
+			'ef2929',
+			'8ae234',
+			'fce94f',
+			'729fcf',
+			'ad7fa8',
+			'34e2e2',
+			'eeeeec',
+
+			# 256 colors
+			'000000', '00005f', '000087', '0000af', '0000d7', '0000ff', '005f00', '005f5f',
+			'005f87', '005faf', '005fd7', '005fff', '008700', '00875f', '008787', '0087af',
+			'0087d7', '0087ff', '00af00', '00af5f', '00af87', '00afaf', '00afd7', '00afff',
+			'00d700', '00d75f', '00d787', '00d7af', '00d7d7', '00d7ff', '00ff00', '00ff5f',
+			'00ff87', '00ffaf', '00ffd7', '00ffff', '5f0000', '5f005f', '5f0087', '5f00af',
+			'5f00d7', '5f00ff', '5f5f00', '5f5f5f', '5f5f87', '5f5faf', '5f5fd7', '5f5fff',
+			'5f8700', '5f875f', '5f8787', '5f87af', '5f87d7', '5f87ff', '5faf00', '5faf5f',
+			'5faf87', '5fafaf', '5fafd7', '5fafff', '5fd700', '5fd75f', '5fd787', '5fd7af',
+			'5fd7d7', '5fd7ff', '5fff00', '5fff5f', '5fff87', '5fffaf', '5fffd7', '5fffff',
+			'870000', '87005f', '870087', '8700af', '8700d7', '8700ff', '875f00', '875f5f',
+			'875f87', '875faf', '875fd7', '875fff', '878700', '87875f', '878787', '8787af',
+			'8787d7', '8787ff', '87af00', '87af5f', '87af87', '87afaf', '87afd7', '87afff',
+			'87d700', '87d75f', '87d787', '87d7af', '87d7d7', '87d7ff', '87ff00', '87ff5f',
+			'87ff87', '87ffaf', '87ffd7', '87ffff', 'af0000', 'af005f', 'af0087', 'af00af',
+			'af00d7', 'af00ff', 'af5f00', 'af5f5f', 'af5f87', 'af5faf', 'af5fd7', 'af5fff',
+			'af8700', 'af875f', 'af8787', 'af87af', 'af87d7', 'af87ff', 'afaf00', 'afaf5f',
+			'afaf87', 'afafaf', 'afafd7', 'afafff', 'afd700', 'afd75f', 'afd787', 'afd7af',
+			'afd7d7', 'afd7ff', 'afff00', 'afff5f', 'afff87', 'afffaf', 'afffd7', 'afffff',
+			'd70000', 'd7005f', 'd70087', 'd700af', 'd700d7', 'd700ff', 'd75f00', 'd75f5f',
+			'd75f87', 'd75faf', 'd75fd7', 'd75fff', 'd78700', 'd7875f', 'd78787', 'd787af',
+			'd787d7', 'd787ff', 'd7af00', 'd7af5f', 'd7af87', 'd7afaf', 'd7afd7', 'd7afff',
+			'd7d700', 'd7d75f', 'd7d787', 'd7d7af', 'd7d7d7', 'd7d7ff', 'd7ff00', 'd7ff5f',
+			'd7ff87', 'd7ffaf', 'd7ffd7', 'd7ffff', 'ff0000', 'ff005f', 'ff0087', 'ff00af',
+			'ff00d7', 'ff00ff', 'ff5f00', 'ff5f5f', 'ff5f87', 'ff5faf', 'ff5fd7', 'ff5fff',
+			'ff8700', 'ff875f', 'ff8787', 'ff87af', 'ff87d7', 'ff87ff', 'ffaf00', 'ffaf5f',
+			'ffaf87', 'ffafaf', 'ffafd7', 'ffafff', 'ffd700', 'ffd75f', 'ffd787', 'ffd7af',
+			'ffd7d7', 'ffd7ff', 'ffff00', 'ffff5f', 'ffff87', 'ffffaf', 'ffffd7', 'ffffff',
+			'080808', '121212', '1c1c1c', '262626', '303030', '3a3a3a', '444444', '4e4e4e',
+			'585858', '626262', '6c6c6c', '767676', '808080', '8a8a8a', '949494', '9e9e9e',
+			'a8a8a8', 'b2b2b2', 'bcbcbc', 'c6c6c6', 'd0d0d0', 'dadada', 'e4e4e4', 'eeeeee'
+		]
+
+		@parent_element.css backgroundColor: "##{@palette[0]}", color: "##{@palette[7]}"
+
+	color_to_css: (i) ->
+		# handle inverse bit
+		if i & 0x080000
+			index = ((i >> 8) & 0xff)
+		else
+			index = (i & 0xff)
+
+		# lighten the basic 8 colors when they're bold
+		if ((i & 0x10000) and index < 8)
+			index += 8
+		return 'color: #' + @palette[index] + '; '
+
+	bg_color_to_css: (i) ->
+		# xor the inverse bit, to get color_to_css to use the bg color
+		return 'background-' + @color_to_css(i ^ 0x080000)
+
+	stylize: (txt, style) ->
+		return '' if txt.length is 0
+		return $('<span>').text txt if style is 0x000007
+		css = ''
+		css += 'font-weight: bold; ' if style & 0x010000
+		css += 'text-decoration: underline; ' if style & 0x020000
+		css += 'font-style: italic; ' if style & 0x200000 # italic
+		css += 'opacity: 0; ' if style & 0x100000 # invisible
+		css += @color_to_css(style) if ((style & 0x0800ff) isnt 0x07)
+		css += @bg_color_to_css(style) if (style & 0x08ff00)
+		return $('<span style="'+css+'"></span>').text(txt)
+
+	redraw_now: ->
+		console.log('redraw_now')
+		@parent_element.empty()
+		# cursor can be just off the right side, but we draw it on the last column in that case
+		if @term.x >= @term.width
+			cursor_x = @term.width - 1
+		else
+			cursor_x = @term.x
+		# invert the cursor TODO: make it blink
+		if @term.cursor_visible
+			@term.attributes[@term.y][cursor_x] ^= 0x080000
+		for i in [0...@term.text.length]
+			div = $('<code>')
+			txt = ''
+			a = 0x000007
+			for j in [0...@term.text[i].length]
+				if (@term.attributes[i][j] isnt a)
+					if (txt.length)
+						div.append(@stylize(txt, a))
+						txt = ''
+					a = @term.attributes[i][j]
+				txt += @term.text[i][j]
+			if txt.length
+				div.append(@stylize(txt, a))
+			@parent_element.append(div)
+		if @term.cursor_visible
+			@term.attributes[@term.y][cursor_x] ^= 0x080000
+
+	# limit to 50fps
+	redraw: ->
+		console.log('redraw')
+		if (@redraw_wait)
+			@redraw_again = true
+		else
+			@redraw_now()
+			@redraw_wait = true
+			@redraw_again = false
+			@timeout 20, =>
+				@redraw_wait = false
+				if (@redraw_again)
+					@redraw_again = false
+					@redraw()
+
+	update: (data) ->
+		@term.update(data)
+		@redraw()
+
+window.htmlterm = (jq_element, width, height) ->
+	return new HTMLTerminal(jq_element, width, height)